JPH11301090A - Paper and paperboard containers with braille engraving and braille processing - Google Patents

Abstract

(57) Abstract: An object of the present invention is to imprint a large number of Braille accurately and inexpensively on a paper product or a paper box, and particularly to suppress damage to the paper surface when engraving. The shape of the convex and concave portions of a debossed plate for embossing a paper product and a paper box is not similar to each other, and the convex portion concave shape has a non-similar shape, and the convex portion has a maximum spherical diameter a and a height b.
A Braille marking method in which the / b value is smaller than the c / d value indicated by the maximum diameter c and the height d of the concave hemisphere. Also, a method of engraving Braille in which the maximum diameter length c of the hemispherical recess is 1.0 to 2.0 mm and the height d is 0.2 to 0.6 mm. Further, a Braille marking method in which the concave portion or the concave portion and the convex portion are heated to 150 ° C. or more to perform the marking.
Braille display paper products with Braille given by the Braille marking method described above,
Paper box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for displaying Braille and a paper container provided with Braille.

[0002]

2. Description of the Related Art There is a need for methods and measures that enable people with physical disabilities and the like to live in the same social life as healthy people. Among them, there are products on the market in which Braille is engraved on various daily necessities, grocery items, etc. so that people with visual impairment can identify the contents.

As a method of processing Braille into paper, paperboard container, paper box, etc., there is debossing. In this method, a convex embossing process is performed on the surface of the base material by an intaglio attached above the base material (chess) and a relief plate attached below (the face plate). A distinction is made between providing a convex pattern and a concave pattern below the substrate with a concave pattern on the substrate surface. Usually, the shapes of the concave portion and the convex portion are the same or similar.

[0004] As a container provided with a Braille display, for example,
As described in JP-A-59-136777, there is a packaging paper box in which Braille is formed by debossing on the surface. However, when high-speed and accurate Braille engraving is performed for mass production, debossing and engraving pressure are increased, and the paper surface is often cracked.

[0005] For this reason, as described in Japanese Patent Application Laid-Open No. 9-48439, Braille is formed by debossing on the resin lamination surface side of a base material having a thermoplastic resin layer laminated on one surface of a paper layer. Container, and furthermore, Japanese Utility Model Application Laid-Open No. 58-26402
No. 1-31130, a container in which an adhesive label formed with Braille is prepared and adhered in a separate process as described in JP-A-61-122708 and JP-A-61-122708. There is known a container in which Braille is integrally formed on the surface by forming a Braille pattern on a mold that forms the container.

[0006] Among them, in a container to which an adhesive label on which Braille is formed is adhered, it is necessary to prepare a Braille label in a separate process and attach the Braille label to the container. It has the disadvantage of being unsuitable.

Further, in a container having Braille integrally molded on the surface, it is necessary to form Braille in a mold for molding the container, and various types of molding dies are prepared and prepared for each content to be packed. There is a disadvantage that the cost increases because of the necessity to keep it.

On the other hand, a method of forming braille by debossing using a paperboard or a paper material in which a thermoplastic resin is laminated on one surface of a paper layer as a base material has been described as a method for solving the above-mentioned disadvantages. However, laminating a thermoplastic resin on the paper surface not only increases the cost by one step but also increases the cost, and requires the addition of new equipment, resulting in a decrease in productivity. In addition, substances that are unsuitable for recycling paper and paperboard will be deposited and deposited.

Therefore, even if originally recyclable paper or paperboard is used, paper to which a thermoplastic resin is adhered to form Braille becomes nonrecyclable paper.

However, when the braille debossing is performed directly on ordinary paper or paperboard, the surface is cracked as described above, which may affect the contents of the paper container, and the appearance of the printed surface may be poor. Inaccuracy may be lacking at the time of braille discrimination due to badness, and instead of using a method of adding a resin or an adhesive label to these papers and paperboards, conventionally used paper, paperboard containers, and paper boxes are used as they are. There has been a demand for a method capable of printing in Braille.

[0011]

SUMMARY OF THE INVENTION It is an object of the present invention to imprint a large number of Braille accurately and inexpensively on a paper product or a carton box, and in particular, to suppress damage to the paper surface when engraving.
More specifically, when engraved with a Braille engraving plate, the projections that make up Braille can be accurately reproduced, mass-produced without cracking on the surface, and existing paper without adding new equipment, It is an object of the present invention to provide a method which makes it possible to use paperboard and a paper container thereby.

[0012]

Means for Solving the Problems The present inventors have made paper products,
In the shape of the convex and concave portions of the debossed plate stamped on a carton box, the convex and concave shapes are made to be non-similar, and the a / b value indicated by the maximum diameter a and the height b of the convex hemisphere is the concave hemisphere. Smaller than the c / d value indicated by the maximum diameter c and the height d, and the c value range is 1.0 to 2.0 mm, and the d value range is 0.2 to
0.6 mm, and further, the paper product, the debossed plate convex and concave portions to be braille stamped on the paper box, the concave or the concave and convex portions are heated and stamped at 150 ° C. or more, thereby breaking or cracking the paper surface. It has been found that Braille engraving is possible without the occurrence of.

When engraving Braille, the paper is sandwiched between the convex and concave portions and is pushed from the convex portion toward the concave portion to form a convex portion of Braille. The shape of the convex concave part of the engraved part is
Conventionally, the shape other than the size or the numerical value defined by the shape is not shown, but generally the shape is similar. In the usual Braille type, the shape of the convex portion and its surroundings constituting Braille is such that the convex portion has a height of 0.2 to 0.5 mm and a diameter of 1.0.
Since the shape is set to a truncated cone of about 2.0 mm, the surface of the surface layer is stretched as compared with the surface of the back layer, and the surface layer is extended at least 10% more than the back layer.

For this reason, the fibers on the surface of the paper cannot withstand these external forces to be stretched, and are broken or cracked. On the other hand, assuming that the shapes of the concave portion and the convex portion are non-similar, the a / b value represented by the maximum diameter a and the height b of the convex hemisphere is represented by the maximum diameter c and the height d of the concave hemisphere. When the value is smaller than the c / d value, the paper is sandwiched between the convex and concave portions, and the amount of stretching of the paper surface portion when the paper is pushed in can be made smaller than that of the similar concave and convex mold.

Further, the softening point of cellulose, hemicellulose and lignin constituting the paper due to heat and a temperature higher than Tg
When the concave portion or the concave portion and the convex portion were heated and molded at 150 ° C. or more, the paper was softened and molded, so that it became possible to perform Braille stamping without generating cracks and cracks.

[0016] Although these have the effect of reducing cracks and cracks even when they are individually treated, they are more effective when used together. The success or failure of the braille stamped portion formed by these processes can be confirmed not only by observing the surface but also by observing the cross-sectional shape. In order to form an accurate stamp without generating cracks or cracks, it is possible to control the stamp pressure by cross-sectional observation.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS There is no restriction on the substrate used as a paper container provided with the Braille display of the present invention. In order to impart aesthetics and printability to the paper surface, it does not matter whether a pigment coating or the like is applied or not. Further, it can be used regardless of whether a thermoplastic resin or the like is laminated, or whether a metal foil is further laminated or a metal foil is laminated. However, from the viewpoint of recyclability, it is preferable that unsuitable substances are not laminated when the used paper is reused. In order to display Braille, it is desirable that the thickness of the substrate is 0.2 to 0.7 mm.

There is no particular limitation on the substrate used for the braille stamping die of the present invention. Iron, stainless steel, brass, zinc,
Copper, ceramics, resin and the like can be used. It does not matter whether the surface is plated or not. However, it is necessary that the material does not deform even if heat is applied due to heating.

The method for producing a paper container provided with a Braille display according to the present invention may be performed by any one of printing, overcoating, extrusion lamination, and the like, or depending on the use of the paper container, a plurality of paperboards produced through a series of pre-processes. Braille is formed on a base material by debossing at the same time as punching a predetermined paper container blank. The debossed debossed plate for Braille and the debossed debossed plate for Braille are attached to a punching machine, and the front surface of the paperboard substrate, that is, the surface that faces outward when molded into a paper container, is placed facing the concave side of the debossed braille plate. By placing and pressing, the braille is debossed on the front surface of the paperboard substrate. The blanks are then assembled to produce a paper container with a Braille display. A debossing machine for engraving Braille is generally provided in a punching step after printing, but may be separately provided.

The shape of the concavo-convex shape of the Braille stamp is a non-similar shape, which is indicated by a maximum diameter a and a height b of the convex hemisphere.
The / b value should be smaller than the c / d value indicated by the maximum diameter c and the height d of the concave hemisphere. The convex part has a height of 0.2 to 0.6
It may be set in a truncated conical shape having a diameter of 1.0 to 2.0 mm and a convex portion having a flat portion having a diameter of about 0.5 to 1.0 mm.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments, but the present invention is not limited thereto. FIG. 1 is an enlarged cross-sectional view of a portion forming a concave portion and a convex portion of a Braille stamping plate by debossing corresponding to the embodiment. Assuming that the shapes of the concave portion and the convex portion are non-similar, the a / b value indicated by the maximum diameter a and the height b of the convex hemisphere is calculated as the maximum diameter c of the concave hemisphere.
And the c / d value indicated by the height d.

FIG. 2 is an enlarged sectional view of a portion forming a concave portion and a convex portion of a conventional Braille stamp plate. The shape of the concave portion and the convex portion is similar, and the a / b value represented by the maximum diameter a and the height b of the convex hemisphere and the c / d represented by the maximum diameter c and the height d of the concave hemisphere. The values are the same because they are similar.

FIG. 3 is an enlarged cross-sectional view of a portion after embossing in Braille, showing an embodiment of the present invention, and FIG. 4 is an enlarged cross-sectional view of a comparative example of a portion engraved in Braille by a conventional method. FIG. 5 is a plan view of a folded state of paper and paperboard showing an embodiment of the present invention, and Table 1 shows a case where the present invention is implemented.
It is a table | surface of the result of having compared the crack state of the surface part after a Braille marking by a comparative example.

[0024]

[Table 1]

[0025]

According to the present invention, the shape of the convex portion and the concave portion of the debossed plate for embossing a paper product and a paper box are not similar to each other, and are indicated by the maximum diameter a and the height b of the convex hemispherical shape. a
The value of / b is smaller than the value of c / d indicated by the maximum diameter c and height d of the hemisphere of the concave portion, and the convex portion, or the convex portion and the concave portion are heated to cause cracks and cracks on the paper surface. This makes it possible to form Braille that is accurate and can be sufficiently recognized by the visually impaired. In particular, since Braille can be formed without using a thermoplastic substance or the like that hinders the recycling use of paper, Braille marking can be performed without limiting the base paper used.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an enlarged view showing a cross section of a Braille stamp concave portion convex portion and a peripheral portion of the example.

FIG. 2 is an enlarged view showing a cross section of a braille-marked concave convex portion and a peripheral portion of the comparative example.

FIG. 3 is a cross-sectional view of paper showing an embodiment of the present invention.

FIG. 4 is a cross-sectional view of a paper of a comparative example.

FIG. 5 is a paper box showing one embodiment of the present invention.

FIG. 6 is a paper box showing one embodiment of the present invention.

FIG. 7 is a paper box showing one embodiment of the present invention.

[Explanation of symbols]

 1. Braille 2. Peripheral recess 3. 7. Outer peripheral edge of concave portion Front version 9. Back version 10a, 10b. Side version 11． Glue allowance pieces 12a, 12b. Crease 13. Around Braille 14a, 14b, 14c, 14d. Braille formation area a: Maximum diameter of hemispherical convex part b: Height of hemispherical convex part c: Maximum diameter of hemispherical concave part d: Height of hemispherical concave part

Claims (4)

[Claims] 1. The shape of a depressed plate convex portion and a concave portion for embossing a paper product or a carton box in a Braille shape, the convex portion concave shape is made non-similar, and is indicated by the maximum diameter a and the height b of the convex hemispherical shape. a
A method for engraving Braille, characterized in that the / b value is smaller than the c / d value indicated by the maximum diameter c and height d of the concave hemisphere. 2. The maximum diameter length c of a hemispherical concave portion in a shape of a convex portion and a concave portion of a debossed plate for engraving Braille on a paper product or a paper box.
2. The method according to claim 1, wherein the height d is in the range of 0.2 to 0.6 mm. 3. The method according to claim 1, wherein the depressed plate projections and depressions to be engraved on a paper product or a paper box are engraved by heating the depressions or the depressions and projections to 150 ° C. or more. Braille engraving method. 4. A Braille display paper product and a paper box, to which Braille is applied by the Braille marking method according to claim 1, 2 or 3.