JPH0556722B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to rugs such as secondary carpets, accent rugs, doorway mats, and automobile foot mats that are cut to a required size and placed on the floor. [Prior Art] In a room where the entire floor is carpeted from wall to wall, a rug smaller than the floor surface is sometimes placed to protect the carpet or for interior decoration. This type of rug used for laying is called a secondary carpet, accent rug, or mat, but in the present invention, the carpet that has been laid first is referred to as the "first carpet", and the term "first carpet" corresponds to this. "Second rug" shall include a cover carpet placed over the electric carpet to protect the surface. Although this type of second-class rug is not an essential item for ordinary households, it has become an essential item as an automobile interior material.
This is because the first carpet is firmly adhered to the entire surface of the automobile floor frame, and the seat is firmly attached thereon by screws.
However, since driving in slippers is prohibited, the first carpet is often trampled on with bare feet, and therefore the first carpet is easily soiled, and on the other hand, it is extremely difficult to replace it. Usually, such a second rug is made to be flexible and light so as to adapt to uneven floor surfaces, and is susceptible to shifting due to constant foot pressure abrasion. As a way to prevent this, Tokuko Sho 55-12251, Tokuko Sho 57-7729, Jitsugoku Sho 59-11661, and Jitsugoku Sho 60-
24236, JP-A-60-26693, JP-A-56-130114, JP-A-58-132178, JP-A-58-133211, JP-A-59-
There are methods disclosed in Japanese Patent Laid-Open No. 69006 and Japanese Patent Application Laid-open No. 176608/1983. That is, the conventional method generally involves attaching rubber protrusions with a large coefficient of friction to the back surface of the second carpet so as to bite into the surface of the first carpet. [Problem to be solved by the invention] The first carpet is a tufted carpet,
There are Wilton carpets, needle punching carpets, etc. However, all of them have piles with thick fluff on the surface, and when the second carpet is placed on top of the pile, the upright fluff on the surface of the first carpet covered by the second carpet is removed. - The pile tilts in a certain direction, and at that time the second rug moves slightly in the direction of the tilt. When the tread pressure is removed, the first carpet pile that had been tilted elastically returns to its original upright state. However, the fluff/pile is extremely flexible, the fibers provide a slippery surface, and the second rug is small and light. Therefore, the frictional force generated between the back surface of the second rug and the tip of the pile of the first carpet in proportion to the weight of the second rug is weak, and therefore the elasticity of the pile of the first carpet Depending on the restoring force, the second rug may have difficulty returning to its original position before being moved. For this reason, conventionally, unevenness or protrusions are added to the back side of the second carpet, which bite into the pile layer on the surface of the first carpet, so that the second carpet always moves in unison with the top of the pile of the first carpet. Various attempts have been made to achieve this, but no satisfactory effect has been achieved. [Object of the Invention] Therefore, the object of the present invention is to obtain a second carpet that adheres closely to the surface of the first carpet as if it were bonded with adhesive when simply placed on the carpet and does not shift during use. [Structure of the Invention] The second rug 15 according to the present invention achieves the above-mentioned object, and the back side of the second rug main body 10 is covered with fibers 12 having a fineness of 100 deniers or less and a height of 5 mm or less, preferably 0.5 mm or less. It is lined with a cloth 11 in which ring hair 13 with a diameter of mm or more and 2 mm or less is formed at a density of 20 or more pieces per cm ² , and the fibers 12 of the ring hair 13 are made of a resin or resin composition having rubber viscoelasticity. It is characterized by being coated with a film 14 of. In other words, the most distinctive feature of the present invention is that the unevenness and protrusions that were conventionally attached to the back side of the second rug are reduced by 0.5 to 2 mm.
The ring hair 13 with a height of It is at the point where the coating was applied. The ring hair 13 can be formed by a loop pile 16 made with a tufted loom, a moquette loom, a knitting machine, etc., or by loop-shaped raised fluff of plain woven fabric or nonwoven fabric. What should be noted here is that the loop pile 13 in the present invention is a loop pile 13 made of thick yarn.
6), nor does it mean threads that simply stand out on the surface of the fabric, such as floating threads in a satin weave structure. To explain in detail the ring hair 13 of the present invention, it is made up of individual fibers 12 having a fineness of 20 denier or less forming a loop shape, and a void 1 surrounded therein.
Therefore, for example, a loop pile 16 made of twisted yarn with a total denier of 20 or more and consisting of several tens of filaments 12 is formed by brushing or raising treatment to the extent that the fibers 12 are separated. Unless the hair is parted, it does not fall under the ring hair referred to in the present invention, and in the case of raised products of plain weave knitted fabrics or non-woven fabrics, the protruding length from the root to the root of the raised fluff fibers that stand out from the fabric body. If L is not more than twice the raised height H (L≦2H) and is raised in at least a semicircular manner, it is useless as a ring hair according to the present invention. At least 20 ring hairs 13 protruding in a loop shape are required per 1 ^cm2 , and preferably
They are formed so densely that they intertwine with a density of 100 or more, more preferably 1000 or more. For this purpose, the loop pile 13 is preferably formed into a loop pile 16 made of filament yarn or lightly twisted or non-twisted spun yarn, preferably by being brushed.
The fibers 12 constituting the fibers 12 are preferably separated and opened to form fine gaps between them, and for this purpose it is preferable to use crimped fibers. To give a specific example, a brushed tricot knitted with a pile yarn made of nylon filament yarn with a fineness of 1 to 20 deniers and a total denier of 50 to 200 and a loop pile with a density of 600 to 1000 pieces/cm ² is a woolen fabric 1.
Recommended as 1. The rubber viscoelasticity of the coating 14 made of the resin or resin composition used in the present invention is indicated by the flexibility and friction coefficient of the resin composition of the coating 14, and is determined by the JIS-K-
6301 means that the rubber hardness is 90 [Hs] or less, the coefficient of friction on the flat steel plate surface is 0.5 or more, and the physical properties of the coating 14 are elastically deformed without plastic deformation, and the rubber hardness is 40 [Hs] or less. Generally good results can be obtained by using a resin or resin composition having a friction coefficient of 0.7 or more at ~80 [Hs]. Incidentally, the hardness of rubber such as nylon and polyethylene is approximately 100 [Hs], and the coefficient of friction is less than 0.4 (for nylon,
0.37, and 0.27 for polyethylene). Resins that exhibit such rubber viscoelasticity include natural rubber, synthetic rubbers such as SBR and NBR, and emulsions and emulsions of synthetic resins such as ethylene/vinyl acetate copolymer resins, acrylic resins, and polyurethane resins.
Latex or organic solvent solutions are used. In order to coat the surface of the ring hair fibers 12 with these resins 14, the entire surface may be uniformly coated using a spray method, a roll coater method, a dip-nip method, etc., or a picture pattern may be drawn using a dot printing method or a textile printing method. The resin solution is partially applied to the fabric 11. Such processing of the fabric 11 is performed to form the second rug main body 1.
This may be done after pasting the fabric 11 on the fabric 11 or before pasting the fabric 11 together. In this case, it should be kept in mind that these resin solutions or dispersions should be diluted to a sufficiently low viscosity to prevent the voids 17 in the ring hair 13 from being closed or filled with resin. This is to prevent the Nage comrades from clumping together into hairballs or lumps. For this purpose, it is a good idea to foam the resin solution or dispersion before applying it. [Effects of the Invention] The back surface of the second rug 15 of the present invention is composed of a resin film 14 having excellent rubber viscoelasticity, which does not undergo plastic deformation, has a rubber hardness of 90 [Hs] or less, and a friction coefficient of 0.5 or more. The coefficient of friction against the carpet 19 is also large,
In addition, the resin film 14 is thinly formed on the surface of the finely protruding ring hair fibers 12, and the resin film 14 occupies a much larger area on the back surface of the second carpet. It adapts well to each pile fiber, and in addition, since the ring hair fiber 12 forms a loop, its shape is stable and the void 17 in the ring hair 13 is always elastically maintained. Since the surface of the first carpet 19 is a pile of fine fibers with sharp tips, the ring hair 13 gets caught on the tips of the pile fibers of the first carpet 19, which causes the second rug and the first carpet to overlap. The degree of adhesion or unity with the carpet is further increased, and even when the pile of the first carpet leans under pressure from the top of the second carpet, it elastically returns to its original upright state when the pressure is removed. , the second rug moves integrally with this carpet and returns to its original position, thereby effectively preventing the second rug placed on the first carpet from shifting. and the second rug 15 and the first carpet 19
Even if an external force that tries to shift the resin film 1
No delamination or damage occurs in 4, and ring hair fiber 1
2 acts as a reinforcing core, the resin film 14 does not break or come off, and both ends of the ring fibers 12 are intertwined with the fibers inside the fabric body 11, which is the base, forming a deeply rooted ring. Since the ring hairs 13 are minute and have a length of 2 mm or less, they will not be pulled out even when subjected to external force and will elastically maintain their loop shape, so they can be removed frequently. It shows strong durability even after washing at 15 degrees, and thus the function of preventing slippage and movement in the present invention is always maintained. The back surface of the second rug 15 of the present invention is composed of a resin film 14 having excellent rubber viscoelasticity.
The surface area of the second rug is much larger than that of the second rug itself, so it goes without saying that it will not shift or slip when placed on a flat surface such as a floorboard or tatami mat. . Moreover, the back side of the second rug of the present invention is made of ring hair fiber 1.
2. It has an upright, dense porous structure that easily absorbs moisture from hygroscopic flooring materials such as floorboards and tatami mats. Unlike foamed rubber and sponge, which have the same porous structure, it has a vertically elongated structure with straight voids. Because of this, it is easy to release absorbed moisture. In particular, since point contact is made with flat floor surfaces such as floorboards and tatami mats through the upright loops 13, moisture will not accumulate on the contact surfaces of those floor surfaces and the second rug. Therefore, the second rug of the present invention is advantageous in terms of preventing corrosion of the flooring material, and in order to allow the ring hair 13 to stand upright and make point contact with the floor surface, it has a fineness of 1 to 20 deniers and a total denier 50
It is recommended to use nylon filament yarn with a good elastic recovery rate of ~200 as a pile type, and use a raised tricot which is made by knitting a dense loop pile with a density of 600 to 1000 pieces/cm ² as the coated fabric 11. This means that it will be done. As described above, the rug according to the present invention does not shift when placed on a first carpet whose surface is covered with pile or as a regular rug, and in particular, has hook-and-loop fasteners on the back surface. Since the ring hair 13 corresponding to the female loop of MAGITSUKU TAPE (registered trademark) is interposed, it can be removably and firmly installed on the floor surface to which the male surface fastener, which forms the corresponding hook pile, is adhered. ,
In addition, it has excellent washing resistance and durability, so it can be installed in large numbers with male surface fasteners as mats or tile carpets at entrances and exits that are frequently accessed, with the edges butted against each other, and the dirty areas can be washed or replaced as needed. In addition, the fuzzy back surface of Wanage 13 is moisture permeable, so even if it is laid in a Japanese-style room, it will not corrode the tatami. The rug according to the invention has great practical advantages, such as increased value. Example 2.1 denier x 36 pieces (total denier 75 denier)
Pile yarn made of crimped nylon filament yarn with ring hair density of 360 pieces/cm ² (pile density; length 18
pieces/cm ² , 20 pieces/cm ² horizontally) A warp knitted pile knit fabric 11 knitted with a pile length of 1.2 mm, a stretched length of the pile 16 of 2.5 mm, and a basis weight of 130 g/m ² is brushed,
The filament 12 in each loop pile 16 was split into ring hair 13, and the resin composition was adjusted to a viscosity of 50 c.ps.The resin composition was made by Dainippon Ink, solid content was 40%, and the dry rubber hardness was 48. [Hs]) with a dry weight of 100 g/m ² is applied by spraying, a surface film 14 is applied to each ring fiber 12 with the resin composition, and this is applied to the second rug body (tufted carpet). original fabric) 1
A second rug 15 was created by lining the cloth with 0 and cutting it. Formulation table (parts by weight) Polyurethane emulsion F-505EL...100 Crosslinking agent Epoxy GR-5L (Dainippon Ink)
...15 Penetrant Emulgen #106 (Kao Atlas) (polyoxyethylene lauryl ether) ...2 Water ...50.5 Total 167.5 Example Warp knit pile knit fabric used in the example 11
A resin composition according to the formulation table below (solid content 40%, dry rubber hardness 55 [Hs]) adjusted to a viscosity of 50 c.ps was sprayed onto the surface of the surface to form a coating with a dry weight of 100 g/ ^m2 . A surface film 14 is coated on the ring hair fiber 12, and this is lined with a second rug main body (tufted carpet material) 10 and cut to form a second rug 1.
5' was created. Composition table (parts by weight) Natural rubber latex (concentration 60%) ...167 Sulfur (concentration 50%) ...2 Zinc white (concentration 50%) ...4 Diethyldicarbamate zinc salt (concentration 50%)
...4 Styrenated phenol (concentration 50%) ...4 Potassium oleate (concentration 20%) ...10 Water ...81.5 Total 272.5 [Comparative example] 167.5 parts by weight of the resin composition used in the example
A resin composition containing 30 parts by weight of 40 mesh crushed rubber particles (dry rubber hardness 66 [Hs]) was applied to the back side (non-pile side) of the warp knitted pile knit fabric 11 used in the example with a dry weight of 135 g. /m ² coated to create an uneven backing made of crushed rubber particles, which is then used as the second rug body (raw tufted carpet).
A comparative sample was prepared by lining the sample with No. 10 and cutting it. [Slip prevention effect test] The first carpet of cut pile and the plywood 19 were individually pasted on the horizontal table 18, and samples of Examples, Examples, Comparative Examples, and untreated warp knitted pile knit fabrics (blanks) were placed in a width of 5 cm. , a test piece 20 was created by cutting it into a length of 20 cm, which was placed on the first carpet and plywood 19 respectively.
A weight with a 5 cm square bottom (weight 1
Kg) was placed on it, the other end was gripped with a clip 22 having a width of 5 cm, and the tension was measured in parallel to the horizontal table 18 at the start of each sliding movement. As a result, as shown in the following table, the test piece according to the example of the present invention required a greater tension than the comparative example for both the first carpet and the plywood.

[Table] From the above, it was confirmed that the rug 15 according to the present invention has an excellent anti-slip effect.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of a second rug according to an embodiment of the present invention, and the circle in FIG. 1 shows a further enlarged back surface portion of the second rug. FIG. 2 is a sectional view of the anti-slip test device used in the present invention. 11...Armed fabric, 12...Fiber, 13...Ring hair, 14...Membrane, 15...Second rug, 16
... Loop pile, 17 ... Gap, 18 ... Horizontal stand, 19 ... Carpet or plywood, 20 ... Test piece, 21 ... Weight, 22 ... Clip.

Claims (1)

[Scope of Claims] 1 (a) The back surface of the rug body 10 is lined with a covered fabric 11; (b) The covered fabric 11 is made of individual fibers 12 with a height of 2 mm or less and made of fibers 12 with a fineness of 100 denier or less. (c) A coating 1 of a resin or resin composition in which the fibers 12 constituting the ring hairs 13 have rubber viscoelasticity;
(d) covered with a film 14 of a resin or a resin composition, and the fibers 12 are individually separated to form loops 13.