JP2021112175A - How to install double-sided adhesive tape and weed-proof sheet - Google Patents

Abstract

[Problem] Conventional double-sided adhesive tapes had a problem in that it was not possible to easily install a weed control sheet made of woven fabric or non-woven fabric. [Solution] A double-sided adhesive tape 1 for bonding weed control sheets made of woven fabric or non-woven fabric, comprising a base material 5 whose main component is linear low-density polyethylene; The double-sided adhesive tape 1, which is provided with two adhesive layers, makes it easy to install a weed control sheet made of woven fabric or non-woven fabric. [Selection diagram] Figure 2

Description

The present invention relates to a double-sided adhesive tape for adhering a weed-proof sheet made of woven cloth or a non-woven fabric and a method of installing the weed-proof sheet.

Weed-proof sheets (including weed-proof mats) for preventing the growth of vegetation from the ground or the like are widely used. For example, by installing (laying) a weed-proof sheet so as to cover the installation surface on the side of the road, it is possible to prevent weeds and the like from growing. Then, it is possible to eliminate the need for regular weeding work, reduce the frequency of weeding work, and reduce the road maintenance cost (see, for example, Patent Document 1 below).

Japanese Unexamined Patent Publication No. 2011-106092

By the way, conventionally, there has been a problem that the work of installing a weed-proof sheet made of woven cloth or non-woven fabric cannot be easily performed. A specific example of such a problem will be described below.

Generally, the weed-proof sheet is a portable material having a predetermined size for each product. In order to completely cover the installation surface having various shapes and sizes by using such a weed-proof sheet, it is necessary to arrange a plurality of weed-proof sheet pieces on the installation surface. The arranged weed-proof sheets are fixed, for example, by placing a fixing pin on the installation surface so as to penetrate the weed-proof sheet.

By the way, there is a problem that a large weed control effect cannot be expected only by providing a fixing pin. That is, even if the weed-proof sheets are arranged so as to partially overlap each other so that there is no gap when viewed from the installation surface, there is a gap between the overlapped weed-proof sheets at the portion between the fixing pins. Occurs. Then, weeds and the like may be generated due to the light incident through the gap. In addition, weeds may be generated by the accumulation of earth and sand in the gaps formed between the stacked weed-proof sheets, and the flying seeds of weeds falling and rooting on the accumulated earth and sand. Further, if there is a gap between the stacked weed-proof sheets, a strong wind may enter the gap and the weed-proof sheet may be peeled off from the installation surface, exposing the land on the installation surface.

Therefore, conventionally, in order to obtain a larger weed control effect, a construction method of holding the weed control sheets in a partially overlapped state by using an adhesive tape or an adhesive as shown below is adopted. There is.

FIG. 9 is a diagram illustrating a conventional method of constructing a weed-proof sheet using an adhesive tape.

The method of constructing the weed-proof sheet using the adhesive tape is, for example, the following method. That is, as shown in the figure, the two weed-proof sheets 801, 802 are overlapped with each other with a stacking allowance having a width dimension of, for example, 10 cm, and the fixing pin 803 is placed (step S811). Then, the adhesive tape 805 is attached from above the two weed-proof sheets 801, 802 are overlapped with each other, and the end portion E of the overlapping portion is covered with the adhesive tape 805 (step S812). As the adhesive tape 805, for example, one made of PVC soft vinyl chloride (PVC) is used as a base material, and one using an acrylic adhesive as an adhesive is used.

According to the construction method using such an adhesive tape, since the adhesive is applied to the adhesive tape, it is not necessary to control the amount of the adhesive applied, and the adhesive is uniformly used for the adherend. Can be fixed. Further, since the step of applying the adhesive to the weed-proof sheet is not necessary, the construction can be performed in a short time.

On the other hand, the construction method using the adhesive tape has the following problems. That is, since the end portion of the overlapping portion is covered with the adhesive tape, the area where the adhesive tape adheres to the weed-proof sheet is narrowed. In addition, where a step of about 2 mm to 4 mm occurs at the end of the overlapping portion depending on the thickness of the weed-proof sheet, if the adhesive tape is not sufficiently crimped along the weed-proof sheet, the adhesive tape and the weed-proof sheet are not sufficiently crimped. There may be a gap between the sheet and the sheet. If there is a gap between the adhesive tape and the weed-proof sheet, rainwater or the like enters the gap, and the adhesive tape is easily peeled off.

FIG. 10 is a diagram illustrating a conventional method of constructing a weed-proof sheet using an adhesive.

The method of constructing the weed-proof sheet using an adhesive is, for example, the following method. That is, as shown in the figure, two weed-proof sheets 801, 802 are overlapped with a stacking allowance having a width dimension of, for example, 10 cm, and rough positioning is performed (step S821). Then, the weed-proof sheet 802 on the upper side is turned over, and the adhesive 825 is applied to the stacking allowance of the weed-proof sheet 801 on the lower side (step S822; hatching indicates the coated portion in the figure). Then, for example, after an open time of several minutes to several tens of minutes has passed, the upper weed-proof sheet 802 that has been turned over is returned to its original position, and pressure is applied from above the overlapping margin portion (it may be called "rolling"). ), Two weed-proof sheets 801, 802 are adhered (step S823). After bonding, the fixing pin 803 may be driven from above the overlapping margin portion. After that, after a predetermined curing period, a reliable adhesive force can be obtained.

The construction method using such an adhesive has the following advantages. That is, if the adhesive can be used by an appropriate method, high adhesive strength can be obtained. In addition, a relatively inexpensive adhesive can be used, and the material cost required for construction can be reduced.

On the other hand, the construction method using an adhesive has the following problems. That is, since the adhesive is liquid, when a weed-proof mat made of woven cloth or non-woven fabric is used as an adherend, the adhesive may be sucked in severely depending on the weed-proof mat, and per unit area. The amount of adhesive used is liable to fluctuate. In addition, the amount and range of the adhesive applied may vary depending on the person in charge of the construction work, and the amount of the adhesive used may not be uniform. In addition, the amount of the adhesive applied may be uneven (uneven coating), and a uniform adhesive force may not be obtained, or an amount of the adhesive exceeding the required amount may be used. In addition, the viscosity of the adhesive and the time required to obtain the required adhesive strength (open time and curing period) are easily affected by the climate such as temperature. Therefore, it is necessary to select the adhesive to be used, and skill is required to use the adhesive. In addition, since it is necessary to strictly manage the open time, there is a problem that the construction work is relatively difficult.

The double-sided adhesive tape of the first invention is a double-sided adhesive tape for laminating weed-proof sheets made of woven fabric or non-woven fabric, and is based on a base material containing linear low-density polyethylene as a main component. A double-sided adhesive tape comprising two pressure-sensitive adhesive layers arranged on both sides of the material.

With such a configuration, the work of installing the weed-proof sheet made of woven cloth or non-woven fabric can be easily performed.

Further, the double-sided adhesive tape of the second invention is a double-sided adhesive tape in which each of the two pressure-sensitive adhesive layers contains an acrylic pressure-sensitive adhesive as a main component, as opposed to the first invention.

With such a configuration, the adhesive strength of the double-sided adhesive tape to the weed-proof sheet can be increased.

Further, the double-sided adhesive tape of the third invention is a double-sided adhesive tape having a thickness smaller than the thickness of at least one of the two pressure-sensitive adhesive layers as opposed to the first or second invention. be.

With such a configuration, the double-sided adhesive tape can be made to follow the weed-proof sheet and surely adhere to the weed-proof sheet.

Further, the double-sided adhesive tape of the fourth invention is a double-sided adhesive tape having a thickness of 10 micrometers or more and 40 micrometers or less as a base material for any one of the first to third inventions.

With such a configuration, the adhesive layer can be easily adhered to the surface of the weed-proof sheet while improving the stability as a tape, and the installation work of the weed-proof sheet can be performed more efficiently.

Further, the double-sided adhesive tape of the fifth invention is provided with a plurality of perforations formed so as to cross the double-sided adhesive tape for any one of the first to fourth inventions, and the plurality of perforations are double-sided. It is a double-sided adhesive tape provided at intervals in the longitudinal direction of the adhesive tape.

With such a configuration, the double-sided adhesive tape can be easily cut using the perforations, and the installation work of the weed-proof sheet can be performed more easily.

Further, the double-sided adhesive tape of the sixth invention is wound to which a rotating portion of an applicator for attaching one side of the double-sided adhesive tape to an adherend is attached to any one of the first to fifth inventions. A core and one release liner having peelability on both sides are provided, and the tape body including the base material and the two adhesive layers and the release liner are overlapped and wound in a roll shape around the winding core. It is a double-sided adhesive tape that is being turned.

With such a configuration, the work of installing the weed-proof sheet made of woven cloth or non-woven fabric can be easily performed.

Further, the double-sided adhesive tape of the seventh invention is configured such that the release liner has higher peelability on the inner surface in the radial direction than on the outer surface in the radial direction, as compared with the sixth invention. , A double-sided adhesive tape in which one of the adhesive layers is exposed on the outer peripheral surface of the roll when the tape body is rewound from the wound roll together with the release liner.

With this configuration, the roll of the double-sided adhesive tape can be rotated while rolling the double-sided adhesive tape on the surface of the weed-proof sheet using an applicator, and the work of easily attaching the double-sided adhesive tape to the weed-proof sheet can be performed. It can be carried out.

The method for installing the weed-proof sheet according to the eighth invention is a method for installing the weed-proof sheet made of woven cloth or non-woven fabric using the double-sided adhesive tape according to any one of the first to seventh inventions. Then, from the first weed-proof sheet to which the first adhesive surface of the double-sided adhesive tape is attached to a part of the surface, the release liner of the double-sided adhesive tape is removed to expose the second adhesive surface of the double-sided adhesive tape. , The step of arranging the second weed-proof sheet with respect to the first weed-proof sheet so as to cover the second adhesive surface, and the first weed-proof sheet and the second at the part where the double-sided adhesive tape is sandwiched. It is a method of installing a weed-proof sheet, which includes a step of pressing one of the weed-proof sheets toward the other.

With such a configuration, a weed-proof sheet made of woven fabric or non-woven fabric can be easily installed.

Further, the method for installing the weed-proof sheet according to the ninth invention is made of woven cloth or a non-woven fabric using an applicator having a rotating portion to which the double-sided adhesive tape according to the sixth or seventh invention is attached. This is a method of installing a weed-proof sheet made of wood, and a step of placing the first weed-proof sheet on the installation surface and a part of the upper surface of the placed first weed-proof sheet are double-sided adhesive using an applicator. The step of attaching the first adhesive surface of the double-sided adhesive tape by rotating the rotating part while pressing the outer peripheral surface of the tape against the first weed-proof sheet, and the step of attaching the double-sided adhesive tape attached to the first weed-proof sheet. A step of removing the release liner to expose the second adhesive surface of the double-sided adhesive tape, and a step of placing a second weed-proof sheet on the first weed-proof sheet so as to cover the second adhesive surface, and both sides. This is a method of installing a weed-proof sheet, which includes a step of pressing the second weed-proof sheet downward from above the second weed-proof sheet at a portion where the adhesive tape is sandwiched.

With such a configuration, the weed-proof sheet made of woven fabric or non-woven fabric can be easily installed at the construction site by using the applicator.

According to the double-sided adhesive tape according to the present invention, the work of installing the weed-proof sheet made of woven fabric or non-woven fabric can be easily performed.

The figure which shows typically the double-sided adhesive tape which concerns on one of the Embodiments of this invention. The figure which schematically explains the layer structure of the double-sided adhesive tape The figure which shows an example of the perforation provided in the same double-sided adhesive tape The figure which shows the same double-sided adhesive tape and an applicator Sectional drawing explaining installation example of weed-proof sheet in this embodiment The first figure which shows an example of the installation method of the weed-proof sheet using the same double-sided adhesive tape. The second figure which shows an example of the installation method of the weed control sheet The figure which shows the applicator which concerns on one modification of this Embodiment The figure explaining the conventional method of constructing a weed-proof sheet using an adhesive tape. The figure explaining the conventional method of constructing a weed-proof sheet using an adhesive.

Hereinafter, one of the embodiments of the double-sided adhesive tape for the weed-proof sheet and the like will be described with reference to the drawings.

(Embodiment)

In the present embodiment, the double-sided adhesive tape is used for adhering a weed-proof sheet made of woven cloth or non-woven fabric.

In the present embodiment, the weed-proof sheet is, for example, a non-woven fabric weed-proof sheet constructed by using polyester fibers. The thickness of the weed control sheet is, for example, 3 mm to 4 mm. The weed-proof sheet is, for example, a strip-shaped sheet having a width of a predetermined dimension (for example, 1 meter), and is distributed and transported as a scroll-shaped (roll-shaped) material wound around a winding core. It is a thing. The material and dimensions of the weed-proof sheet are not limited to this. For example, it may be composed of other chemical fibers or may be composed of natural fibers. The weed-proof sheet may be what is called a mat, and may be distributed as a tile-shaped piece having a predetermined size, for example.

For example, one or two or more weed-proof sheets are arranged so as to cover the installation surface such as land that has been leveled, and constitutes a weed-proof laying body that prevents weeds and the like from growing from the installation surface. On a wide installation surface, two or more weed control sheets are arranged so as to partially overlap each other to form a weed control laying body.

[Explanation of the configuration of double-sided adhesive tape]

FIG. 1 is a diagram schematically showing a double-sided adhesive tape according to one of the embodiments of the present invention. FIG. 2 is a diagram schematically illustrating the layer structure of the double-sided adhesive tape 1.

As shown in FIG. 1, the double-sided adhesive tape 1 includes a tape body 2, a release liner 40, a winding core 50, and a perforation 90. The double-sided adhesive tape 1 is wound in a roll shape around a winding core 50 in a state where the tape body 2 and the release liner 40 are overlapped with each other.

In FIG. 2, the portion surrounded by the alternate long and short dash line is a schematic enlargement of the layer structure of the double-sided adhesive tape 1.

As shown in FIG. 2, the tape body 2 includes a base material 5, a first pressure-sensitive adhesive layer 10, and a second pressure-sensitive adhesive layer 20. In the present embodiment, the tape body 2 has a first adhesive layer 10 located on the outer side in the radial direction (outer side of the double-sided adhesive tape 1 in a rolled state) and the inner side in the radial direction (rolled in a roll shape). It has a structure in which the base material 5 is sandwiched between the second pressure-sensitive adhesive layer 20 located on the inner side of the double-sided pressure-sensitive adhesive tape 1 in the state of being covered.

The first pressure-sensitive adhesive layer 10 has a first pressure-sensitive adhesive surface 11 which is a radial outer surface of the tape body 2. Further, the second adhesive layer 20 has a second adhesive surface 22 which is a surface inside the tape body 2 in the radial direction.

In the present embodiment, each of the two pressure-sensitive adhesive layers 10 and 20 is an acrylic pressure-sensitive adhesive. This acrylic pressure-sensitive adhesive has properties of exhibiting high adhesion and an anchoring effect on an adherend having an uneven surface. Therefore, each of the two pressure-sensitive adhesive layers 10 and 20 has good adhesive strength with respect to the surface of the weed-proof sheet having a structure in which fibers are entangled. In particular, the acrylic pressure-sensitive adhesive exhibits high adhesive strength with respect to polyester, which is the material of the weed-proof sheet in the present embodiment. The acrylic pressure-sensitive adhesive is preferably configured to have a relatively high cohesive force. As a result, the adhesiveness to the adherend and the anchoring effect can be maximized without destroying the adhesive layers 10 and 20. Each of the two pressure-sensitive adhesive layers 10 and 20 may contain a substance of another kind in addition to the acrylic pressure-sensitive adhesive, and may contain an acrylic pressure-sensitive adhesive as a main component.

The base material 5 is mainly composed of linear low density polyethylene (sometimes called LLDPE (Linear Low Density Polyethylene)). In the present embodiment, the base material 5 is a linear low-density polyethylene film. With this configuration, the followability of the tape body 2 can be further improved.

By including the base material 5, the double-sided adhesive tape 1 has a higher tensile strength than the webless adhesive tape having no base material, is less likely to be peeled off, and has high stability as a tape. Therefore, the double-sided adhesive tape 1 can be easily attached to the adherend, and the workability is improved. Further, since the base material 5 contains linear low-density polyethylene as a main component, the double-sided adhesive tape 1 is relatively weak and soft. Therefore, the followability to the uneven surface is improved. Further, since the double-sided adhesive tape 1 is soft, when rolled, the adhesives on both sides of the tape bite into the surface of the adherend and have a high anchoring effect. Therefore, it can be said that the adhesive strength of the double-sided adhesive tape 1 is improved.

The peeling liner 40 has peelability on both sides. That is, the release liner 40 includes a first release surface 41 which is a radial inner surface and a second release surface 42 which is a radial outer surface. The second peeling surface 42 is a surface that contacts the second adhesive surface 22, and the first peeling surface 41 is a surface that contacts the first adhesive surface 11 in a rolled state.

In the present embodiment, the release liner 40 is a release paper in which, for example, a silicone layer as a release agent is formed on both surfaces of a base material such as woodfree paper via a polyethylene laminate layer which is a sealing layer. (The layer structure is not shown in the figure). The structure of the release liner 40 is not limited to this, and the material of the base material and the release agent, and the material and presence / absence of the sealing layer may be changed. For example, a silicone layer may be directly formed on both sides of a paper base material that does not require a sealing layer. Further, it may be a release film in which a release agent such as a silicone layer is arranged on both sides of a base material of a film such as a polyethylene terephthalate film.

Here, in the present embodiment, the peeling liner 40 is configured so that the first peeling surface 41 on the inner side in the radial direction has higher peelability than the second peeling surface 42 on the outer side in the radial direction. In other words, the peeling force of the first peeling surface 41 is configured to be smaller than the peeling force of the second peeling surface 42. That is, in the double-sided adhesive tape 1, when the tape body 2 is rewound from the wound roll together with the release liner 40, the first adhesive layer 10 is exposed on the outer peripheral surface side of the roll of the double-sided adhesive tape 1. It is configured as follows. The peeling force of the first peeling surface 41 is larger than the peeling force of the second peeling surface 42 over the entire range of the peeling speed that may be applied when the double-sided adhesive tape 1 is used during the construction of the weed-proof sheet. It is preferable that the size is small.

The thickness of each layer constituting the double-sided adhesive tape 1 is, for example, as follows. In the present embodiment, the first pressure-sensitive adhesive layer 10 and the second pressure-sensitive adhesive layer 20 have the same thickness. Further, the base material 5 has a thickness smaller than the thickness of one of the pressure-sensitive adhesive layers 10 and 20. That is, since the first pressure-sensitive adhesive layer 10 and the second pressure-sensitive adhesive layer 20 each have a relatively large thickness, they have a structure in which fibers are entangled and anchored to the surface of the weed-proof sheet having irregularities. The effect is surely obtained, and it has good adhesive strength. Further, since the thickness of the base material 5 is relatively small, the followability of the double-sided adhesive tape 1 is improved, and the double-sided adhesive tape 1 can be reliably adhered to the surface of the weed-proof sheet. One of the two pressure-sensitive adhesive layers 10 and 20 may be thicker than the other. In this case, the base material 5 may have a thickness smaller than the thickness of at least one of the two pressure-sensitive adhesive layers 10 and 20.

It should be noted that preferably, the base material 5 has a thickness of 10 micrometers or more and 40 micrometers or less. With this configuration, the followability of the tape body 2 can be further improved. Further, more preferably, the thickness of the base material 5 is 15 micrometers or more and 25 micrometers or less. By configuring the base material 5 so as to have such a thickness, it is possible to improve the followability of the tape body 2 and to improve the hand-cutting property of the tape body 2, and to install the weed-proof sheet. Will be easy to do.

The thickness of each layer of the double-sided adhesive tape 1 in the present embodiment is as described above, but specifically, for example, it can be as follows. That is, the thickness of each of the first pressure-sensitive adhesive layer 10 and the second pressure-sensitive adhesive layer 20 may be, for example, 60 micrometers. The thickness of the base material 5 may be, for example, 20 micrometers. The thickness of the release liner 40 may be, for example, 110 micrometers. For example, with such a configuration, the followability of the double-sided adhesive tape 1 can be improved, and the adhesive can be reliably adhered to the surface of the weed-proof sheet.

The winding core 50 is, for example, a cylindrical paper tube, but is not limited to this. For example, it may be made of another material such as resin. Further, it may have another shape, for example, the outer peripheral surface or the inner peripheral surface may have a polygonal shape. Further, it may be in the shape of a solid rod. In the present embodiment, for example, the tape body 2 and the release liner 40 are wound around the winding core 50 in a roll shape with their ends held on the outer peripheral surface of the winding core 50. The tape body 2 and the release liner 40 can be used by being rewound from the rolled state.

As shown in FIG. 1, in the present embodiment, the double-sided adhesive tape 1 includes a plurality of perforations 90 formed so as to cross the double-sided adhesive tape 1. The perforations 90 are formed, for example, by performing a radial perforation treatment on the double-sided adhesive tape 1 in a state where the double-sided adhesive tape 1 is wound around the winding core 50 in a roll shape. That is, when the roll-shaped double-sided adhesive tape 1 is rotated around the winding core 50 and rewound, one perforation 90 is pulled out from the roll for each rotation of the winding core 50. Will appear in. That is, the plurality of perforations 90 are provided at intervals from each other in the longitudinal direction of the double-sided adhesive tape 1.

FIG. 3 is a diagram showing an example of perforations 90 provided on the double-sided adhesive tape 1.

In FIG. 3, the vertical direction of the paper surface indicates the longitudinal direction of the double-sided adhesive tape 1, and the horizontal direction of the paper surface indicates the width direction of the double-sided adhesive tape 1. In the present embodiment, the distance (dimension D10) between the perforations 90 adjacent to each other in the longitudinal direction is equal to the length in the circumferential direction of the outer peripheral surface in the state of being wound in a roll shape as described above. Further, at each perforation, the length of the hole in the width direction (dimension D11) is, for example, about 10 mm, and the distance between the holes is about 4 mm.

The method of forming the perforation 90 is not limited to the above. The double-sided adhesive tape 1 may be wound into a roll after the perforations 90 are formed. The plurality of perforations 90 may be provided at equal intervals in the longitudinal direction of the double-sided adhesive tape 1. Further, in the present embodiment, the perforations 90 are formed in a straight line parallel to the width direction, but may be formed in an inclined shape with respect to the width direction, and may be formed in a curved shape or a zigzag shape. May be formed so as to cross the double-sided adhesive tape 1. For example, the perforations 90 may be formed in a corrugated linear shape or a V-shaped linear shape that traverses the double-sided adhesive tape 1. Further, the distance between the perforations 90 and the shape of the holes forming the perforations 90 are not limited to the above.

By providing such a perforation 90, it becomes easy to cut the double-sided adhesive tape 1 at the position of the perforation 90. As described above, each layer of the double-sided adhesive tape 1 is configured, so that the double-sided adhesive tape 1 has a hand-cutting property, and the perforations 90 provided so as to cross the double-sided adhesive tape 1 make both sides. The adhesive tape 1 can be cut by applying an appropriate force by hand without using tools such as scissors or a utility knife, and the cutting line of the double-sided adhesive tape 1 is clean along the perforation 90. It becomes a shape. Therefore, the double-sided adhesive tape 1 can be used more easily.

In the present embodiment, the width dimension (dimension D1) of the double-sided adhesive tape 1 is, for example, 10 centimeters. The width dimension of the double-sided adhesive tape 1 is preferably slightly smaller than the width dimension of the region secured as a stacking allowance when the weed-proof sheet is applied. The length of the double-sided adhesive tape 1 on one roll is, for example, about 20 meters. The width dimension and length of the double-sided adhesive tape 1 are not limited to this.

In the present embodiment, the double-sided adhesive tape 1 can be used when constructing a weed-proof sheet using the applicator 500.

FIG. 4 is a diagram showing the double-sided adhesive tape 1 and the applicator 500.

The applicator 500 can be used to attach the outer peripheral surface of the double-sided adhesive tape 1 wound in a roll shape to the adherend. As shown in FIG. 4, the applicator 500 includes a rotating portion 510 and a gripping portion 520 that can be manually gripped by an operator. The rotating portion 510 is held so as to be rotatable about a rotation axis with respect to the frame to which the grip portion 520 is attached.

In the present embodiment, the rotating portion 510 has, for example, a cylindrical shape having a rotating axis as an axis of a cylindrical surface. The outer peripheral surface of the rotating portion 510 has a shape that can be fitted into the winding core 50. The double-sided adhesive tape 1 is attached to the applicator 500 with the rotating portion 510 inserted into the winding core 50. In other words, the rotating portion 510 of the applicator 500 is attached to the winding core 50. The double-sided adhesive tape 1 attached to the applicator 500 is rotatable about a rotation axis. In the present embodiment, the diameter of the rotating portion 510, that is, the inner diameter of the winding core 50 is, for example, 1.5 inches, but is not limited thereto.

The operator can easily perform the work of attaching the double-sided adhesive tape 1 to the adherend by using the applicator 500. That is, the operator holds the grip portion 520 and presses the outer peripheral surface of the double-sided adhesive tape 1 attached to the applicator 500 against the adherend. That is, since the first adhesive surface 11 is exposed on the outer peripheral surface of the double-sided adhesive tape 1, the first adhesive surface 11 is pressed against the surface of the adherend. Then, the operator rotates the double-sided adhesive tape 1 together with the rotating portion 510 by moving the applicator 500 in a direction perpendicular to the rotation axis of the rotating portion 510 while pressing the double-sided adhesive tape 1 against the adherend. Then, the double-sided adhesive tape 1 is rewound. At this time, the double-sided adhesive tape 1 is rewound with the release liner 40 still attached to the second adhesive surface 22. As a result, the double-sided adhesive tape 1 can be attached to the adherend. Since the first adhesive surface 11 is configured to be exposed to the outside of the double-sided adhesive tape 1, the double-sided adhesive tape 1 can be easily applied to the adherend while being compacted onto the adherend using the applicator 500. It can be pasted. After the double-sided adhesive tape 1 is attached to the adherend by a required length, the operator can easily cut the double-sided adhesive tape 1 by using the perforations 90. The double-sided adhesive tape 1 may be cut regardless of the position of the perforation 90.

[Explanation of installation of weed-proof sheet using double-sided adhesive tape 1]

In the present embodiment, the double-sided adhesive tape 1 as described above can be used to install the weed-proof sheet on the installation surface as follows, for example. In the following description, the positional relationship may be described with the direction orthogonal to the installation surface as the vertical direction (the side on which the weed control sheet is placed is on top), but these are defined for convenience of explanation only. However, it does not limit the installation mode and the installation surface mode of the weed-proof sheet using the double-sided adhesive tape 1 according to the present invention. The installation surface does not necessarily have to be a horizontal surface, and may be an inclined surface, a curved surface or other undulating surface.

FIG. 5 is a cross-sectional view illustrating an installation example of a weed-proof sheet according to the present embodiment.

In FIG. 5, as an example, a weed-proof laying body 900 composed of a plurality of weed-proof sheets 100 is schematically shown. The weed-proof laying body 900 is arranged on the installation surface F on which earth and sand are laid, which is provided on the ground. Since the installation surface F is covered with the weed-proof laying body 900, the growth and growth of weeds and the like from the installation surface F are prevented.

The weed control laying body 900 includes, for example, a plurality of weed control sheets 100 and fixing pins 150. The weed control sheet 100 is provided as, for example, a roll-shaped material. The operator cuts the roll-shaped weed-proof sheet 100 to a length that reaches from one end to the other end of the installation surface F. Then, the obtained plurality of weed-proof sheets 100 are laid so that a part of both end portions in the width direction overlap each other vertically so that there is no gap, and both end portions in the width direction of each weed-proof sheet 100 are laid with a plurality of fixing pins. It is fixed to the installation surface F at 150. The fixing pin 150 is driven into the installation surface F so as to penetrate the weed control sheet 100 based on the information of the weed control sheet 100. As a result, the weed control laying body 900 composed of the plurality of weed control sheets 100 is installed on the installation surface F.

In the present embodiment, the double-sided adhesive tape 1 is arranged between the plurality of weed-proof sheets 100 installed as described above, and fixes the adjacent weed-proof sheets 100 to each other. An example of how to install two weed-proof sheets 100 (first weed-proof sheet 101 and second weed-proof sheet 102) adjacent to each other using the double-sided adhesive tape 1 will be described. It should be noted that the names of the first weed control sheet 101 and the second weed control sheet 102 are merely for distinguishing any two of the plurality of weed control sheets 100, and the weed control sheet is laid. The position, installation order, and the like among the plurality of weed control sheets 100 constituting the body 900 are not limited.

FIG. 6 is a first diagram showing an example of a method of installing a weed-proof sheet using the double-sided adhesive tape 1. FIG. 7 is a second diagram showing an example of a method for installing the weed control sheet.

6 and 7 show a view (plan view) of the installation surface F as viewed from above. The arrow shown in FIG. 6 indicates the longitudinal direction of the first weed control sheet 101.

(Step S11) First, the first weed control sheet 101 is arranged on the installation surface F.

(Step S12) Next, of the upper surface of the first weed-proof sheet 101 arranged, the first adhesive of the double-sided adhesive tape 1 is aligned along the end on the side where the second weed-proof sheet 102 is arranged. The surface 11 is attached. In this operation, as described above, the rotating portion 510 is rotated while pressing the outer peripheral surface of the double-sided adhesive tape 1 against the first weed-proof sheet 101 by using the applicator 500 to which the double-sided adhesive tape 1 is attached. Can be done by. The double-sided adhesive tape 1 is not limited to the end portion of the first weed control sheet 101, and may be attached to a part of the upper surface of the first weed control sheet 101.

In the present embodiment, when performing such an operation, as shown by the arrow in step S12, the double-sided adhesive tape 1 is attached while pushing the applicator 500 forward (in the direction of the arrow) using the grip portion 520. Is desirable. For example, when viewed from above the first weed-proof sheet 101, while keeping the posture of the applicator 500 in a state where the rotating portion 510 is in front of the grip portion 520, the applicator 500 is moved to the rotating portion 510 with the grip portion 520. The double-sided adhesive tape 1 can be attached while pushing the applicator 500 forward by pressing the applicator 500 toward the front. By sticking the applicator 500 while pressing it, the load applied to the double-sided adhesive tape 1 pressed against the first weed-proof sheet 101 can be easily increased, and the first adhesive surface 11 can be attached to the first weed-proof sheet 101. Can be adhered well to. The direction in which the applicator 500 is used is not limited to this, and the double-sided adhesive tape 1 may be attached while pulling the applicator 500 toward you in the direction opposite to the above.

After the double-sided adhesive tape 1 is attached to the first weed-proof sheet 101 over the entire area in the longitudinal direction, the double-sided adhesive tape 1 is cut. The double-sided adhesive tape 1 can be cut by using, for example, a perforation 90.

At this time, the release liner 40 remains attached to the second adhesive surface 22 of the double-sided adhesive tape 1, and the first release surface 41 of the release liner 40 is exposed upward.

(Step S13) The second weed-proof sheet 102 is temporarily placed on the first weed-proof sheet 101 on which the first adhesive surface 11 of the double-sided adhesive tape 1 is attached to the surface. The second weed-proof sheet 102 is, for example, so that the longitudinal direction is parallel to the longitudinal direction of the first weed-proof sheet 101, and the double-sided adhesive tape 1 is at the end of the second weed-proof sheet 102. It is placed in a position where it can be covered. That is, since the width dimension of the double-sided adhesive tape 1 is, for example, 10 cm, the first weed-proof sheet 101 and the second weed-proof sheet 102 are arranged so as to overlap each other by, for example, about 10 cm. ..

(Step S14) The end of the second weed-proof sheet 102 arranged as needed is turned over, the release liner 40 of the double-sided adhesive tape 1 attached to the first weed-proof sheet 101 is removed, and the double-sided adhesive tape is removed. The second adhesive surface 22 of 1 is exposed.

(Step S15) The second weed control sheet 102 is arranged on the first weed control sheet 101 so as to cover the second adhesive surface 22.

(Step S16) At the portion where the double-sided adhesive tape 1 is sandwiched, the second weed-proof sheet 102 is pressed downward (rolled) from above the second weed-proof sheet 102. At the portion where the double-sided adhesive tape 1 is sandwiched, one of the first weed control sheet 101 and the second weed control sheet 102 is pressed toward the other. The rolling compaction may be performed by, for example, pressing the limbs by the operator, or may be performed by using an instrument. As a result, the second weed control sheet 102 is fixed to the first weed control sheet 101 by the double-sided adhesive tape 1.

In the present embodiment, the fixing pin 150 is driven into the portion where the first weed control sheet 101 and the second weed control sheet 102 are overlapped. As a result, wind or the like blows between the first weed control sheet 101 and the second weed control sheet 102 and the installation surface F, causing the weed control sheet 100 to float, or the weed control sheet 101 to the installation surface F. It is possible to prevent it from shifting.

By performing the above installation method each time two adjacent weed-proof sheets 100 are overlapped with each other, the weed-proof sheet 100 can be easily installed so as to cover the entire installation surface F. can.

The fixing pin 150 may not be used. Further, the provisional arrangement of the second weed control sheet 102 (step S13) may be omitted.

Further, it is not always necessary to use the applicator 500 so that the double-sided adhesive tape 1 can be attached. Further, for example, the weed-proof sheet 100 may be installed by using the weed-proof sheet 100 to which the first adhesive surface 11 of the double-sided adhesive tape 1 is attached in advance at a place different from the installation surface F. .. In this case, the method of installing the weed-proof sheet is as follows: from the first weed-proof sheet 101 to which the first adhesive surface 11 of the double-sided adhesive tape 1 is attached to at least a part of the surface, the release liner 40 of the double-sided adhesive tape 1. To expose the second adhesive surface 22 of the double-sided adhesive tape 1, and to arrange the second weed-proof sheet 102 with respect to the first weed-proof sheet 101 so as to cover the second adhesive surface 22. And, at the portion where the double-sided adhesive tape 1 is sandwiched, one of the first weed control sheet 101 and the second weed control sheet 102 may be pressed toward the other. In this case, the first weed-proof sheet 101 to which the first adhesive surface 11 of the double-sided adhesive tape 1 is previously attached is arranged on the second weed-proof sheet 102 previously arranged on the installation surface F. The second adhesive surface 22 of the double-sided adhesive tape 1 may be adhered to the second weed-proof sheet 102.

As described above, in the present embodiment, the weed-proof sheets 100 can be bonded to each other by the double-sided adhesive tape 1 without using an adhesive or the like. This has the following advantages: That is, since the pressure-sensitive adhesive layers 10 and 20 are applied to both sides of the base material 5 in advance, the amount of the pressure-sensitive adhesive used does not become uneven, and it is not necessary to manage the open time or the like. Regardless of the skill of the worker and the environment, it can be expected that a certain amount of adhesive will be used and the adhesive strength will be surely obtained. Obtainable. Further, in the present embodiment, since the double-sided adhesive tape 1 can be compacted onto the weed-proof sheet 100 by using the applicator 500, the work efficiency is improved and the installation work can be performed quickly.

Since the weed-proof sheet 100 made of woven fabric or non-woven fabric, which is the adherend in the present embodiment, is made of an aggregate of fibers and has a rough surface, the conventional double-sided adhesive tape has sufficient adhesive strength. Cannot be obtained. In the present embodiment, as described above, the double-sided adhesive tape 1 having the base material 5 containing linear low-density polyethylene as a main component and the two adhesive layers 11 and 12 is used, so that the weed-proof sheet 100 is used. The followability to the surface of the polyethylene is increased, and a higher adhesive strength can be obtained. Further, where the weed-proof sheet 100 can be installed on various installation surfaces F, the double-sided adhesive tape 1 satisfactorily follows the surface of the weed-proof sheet 100 arranged on, for example, an undulating installation surface F. High adhesive strength can be obtained.

(others)

FIG. 8 is a diagram showing an applicator 501 according to a modification of the present embodiment.

As shown in FIG. 8, the applicator 501 has a grip portion 521 that is longer than the grip portion 520 of the applicator 500 of the above-described embodiment. By using the applicator 501 having a long length (hereinafter referred to as the total length) from the rotating portion 510 of the applicator 501 to the end of the grip portion 521, the operator is bent with a heavy burden on the body. The double-sided adhesive tape 1 can be easily attached while standing without being forced to take a posture. Further, since the double-sided adhesive tape 1 can be attached while walking, the speed of the work can be improved and the work efficiency can be improved. In particular, by sticking the double-sided adhesive tape 1 while pushing the applicator 501 forward as shown by the arrow in the figure, the double-sided adhesive tape 1 can be satisfactorily adhered to the surface of the weed-proof sheet 100. The total length of the applicator 501 can be, for example, about 120 cm, but it may be longer or shorter than this. For example, by making the total length of the applicator 501 70 cm or more and using it, the double-sided adhesive tape 1 can be easily attached in a relatively comfortable posture.

Such a grip portion 521 may be configured to be expandable and contractible. As a result, the applicator 501 can be used by adjusting the length of the grip portion 521 to an appropriate length according to the terrain of the place where the weed control sheet 100 is installed, the body shape of the worker, and the like. Further, the grip portion 521 may be configured by using a rod-shaped joint handle that can be attached to the grip portion 520 of the applicator 500 in the above-described embodiment. When the weed-proof sheet 100 is placed on the installation surface F of various terrains by attaching a joint handle to the grip portion 520 of the applicator 500 to form the applicator 501 having a long overall length when necessary according to the application. In addition, the work of attaching the double-sided adhesive tape 1 to the weed-proof sheet 100 can be easily performed.

The applicator 501 having such a long overall length is also useful when arranging the weed-proof sheet 100 on an installation surface which is a slope such as a slope. In order to arrange the weed-proof sheet 100 on such an installation surface, it may be necessary to attach the double-sided adhesive tape 1 to a region having a height difference. In such a case, by using the applicator 501 having a long overall length, the double-sided adhesive tape 1 can be attached to a relatively wide area while using one scaffold as a foothold, and the work efficiency can be improved. Can be done.

The present invention is not limited to the above embodiments, and various modifications can be made, and these are also included in the scope of the present invention.

The perforations as described in the above-described embodiment may not necessarily be provided. For example, instead of the perforation, the double-sided adhesive tape may be provided with a cut cut inward in the width direction from the side end portion of the double-sided adhesive tape. The double-sided adhesive tape can be easily cut by using such a cut as a trigger. The cuts and perforations may be provided only on the release liner, for example. Further, for example, the double-sided adhesive tape may not be provided with perforations or cuts. Even with such double-sided adhesive tape that is not provided with perforations or cuts, the weed-proof sheet can be easily installed by cutting it by hand or using a knife such as scissors. Can be done.

The double-sided adhesive tape may be configured such that a release liner having peelability is attached to at least one side of each side of the tape body. Further, it may be used without using the above-mentioned applicator. When rewound, the outer peripheral surface of the roll of the double-sided adhesive tape may be the peeling surface of the release liner, and the tape body may be inside the release surface.

Each component of the above-described embodiment may be replaced or combined with the component of another embodiment as appropriate. In addition, some components and functions may be omitted from the above-described embodiments.

As described above, the double-sided adhesive tape according to the present invention has an effect that the weed-proof sheet made of woven fabric or non-woven fabric can be easily installed, and is useful as a double-sided adhesive tape or the like.

1 Double-sided adhesive tape 2 Tape body 5 Base material 10 First adhesive layer 11 First adhesive surface 20 Second adhesive layer 22 Second adhesive surface 40 Peeling liner 41 First peeling surface 42 Second peeling surface 50 Winding core 90 Sewing machine Eyes 100 Weed-proof sheet 101 First weed-proof sheet 102 Second weed-proof sheet 150 Fixing pin 500, 501 Applicator 510 Rotating part 520, 521 Grip part 900 Weed-proof laying body

Claims (9)

Double-sided adhesive tape for laminating weed-proof sheets made of woven cloth or non-woven fabric.
A base material mainly composed of linear low-density polyethylene,
A double-sided adhesive tape comprising two pressure-sensitive adhesive layers arranged on both sides of the base material. The double-sided adhesive tape according to claim 1, wherein each of the two adhesive layers contains an acrylic adhesive as a main component. The double-sided adhesive tape according to claim 1 or 2, wherein the base material has a thickness smaller than the thickness of at least one of the two pressure-sensitive adhesive layers. The double-sided adhesive tape according to any one of claims 1 to 3, wherein the base material has a thickness of 10 micrometers or more and 40 micrometers or less. A plurality of perforations formed so as to traverse the double-sided adhesive tape are provided.
The double-sided adhesive tape according to any one of claims 1 to 4, wherein the plurality of perforations are provided at intervals in the longitudinal direction of the double-sided adhesive tape. A winding core to which the rotating part of the applicator for attaching one side of the double-sided adhesive tape to the adherend is attached,
Equipped with one peeling liner having peelability on both sides,
Any of claims 1 to 5, wherein the tape body including the base material and the two adhesive layers and the release liner are wound in a roll shape around the winding core in a state of being overlapped with each other. Double-sided adhesive tape described in. The release liner is configured to have higher peelability on the inner surface in the radial direction than on the outer surface in the radial direction.
The double-sided adhesive tape according to claim 6, wherein when the tape body is rewound together with the release liner from the wound roll, one of the adhesive layers is exposed on the outer peripheral surface of the roll. A method for installing a weed-proof sheet made of woven fabric or non-woven fabric using the double-sided adhesive tape according to any one of claims 1 to 7.
A step of removing the release liner of the double-sided adhesive tape from the first weed-proof sheet to which the first adhesive surface of the double-sided adhesive tape is attached to a part of the surface to expose the second adhesive surface of the double-sided adhesive tape. When,
A step of arranging a second weed control sheet with respect to the first weed control sheet so as to cover the second adhesive surface, and
A method for installing a weed-proof sheet, which comprises a step of pressing one of the first weed-proof sheet and the second weed-proof sheet toward the other at a portion where the double-sided adhesive tape is sandwiched. A method for installing a weed-proof sheet made of woven fabric or non-woven fabric using an applicator having a rotating portion to which the double-sided adhesive tape according to claim 6 or 7 is attached.
Steps to place the first weed control sheet on the installation surface,
Using the applicator, the rotating portion is rotated while pressing the outer peripheral surface of the double-sided adhesive tape against the first weed-proof sheet on a part of the upper surface of the first weed-proof sheet arranged. Steps to attach the first adhesive side of double-sided adhesive tape,
A step of removing the release liner of the double-sided adhesive tape attached to the first weed-proof sheet to expose the second adhesive surface of the double-sided adhesive tape.
A step of arranging the second weed control sheet on the first weed control sheet so as to cover the second adhesive surface, and
A method for installing a weed-proof sheet, which comprises a step of pressing the second weed-proof sheet downward from above the second weed-proof sheet at a portion where the double-sided adhesive tape is sandwiched.

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