JP2704225B2 - Embossing method for pasting the shape material - Google Patents

Description

The present invention relates to an embossing method for gold and silver paper, other papers, films, and various other sheets.

[Prior art] Conventionally, when embossing a sheet or the like, the embossing roll was simply embossed. However, the pattern of the engraving roll is poorly changed only by being embossed, and the engraved design is poor. The feel of the material is mechanically hard, and it is necessary to stock many types of engraving rolls in order to process many patterns. Is difficult to cope with the current demand for high-mix low-volume production.

In order to solve this problem, the present applicant has proposed a "special embossing method for gold and silver paper" (Japanese Patent Application No. 60-71694) and a "special embossing method for sheets" (Japanese Patent Application No. 61-155755).
No.) was completed and a patent application was filed.

In these prior applications, when embossing gold or silver paper or other various sheets, the embossing is performed under predetermined conditions while a pattern sheet is interposed between the sheets and an engraving roll.

By the embossing method of the above-mentioned prior application, the type of patterning is not limited to the number of engraving rolls held, and a pattern sheet having various perforated patterns or uneven patterns is interposed between the engraving roll and the sheet to be processed. Embossing with a wide variety of changes with complex tastes becomes possible by making it possible, and it is possible to give a gloss change within one pattern, and to give a subtle change to the pattern and hand, etc. It had a very good effect.

[Problem to be Solved by the Invention] Although the embossing method of the above-mentioned prior application has succeeded in giving a variety of changes by interposing various pattern sheets, it is, As a pattern sheet, for example, only a certain kind of restricted pattern sheet such as cold gauze, cloud dragon paper, it is difficult for emboss processors and designers to freely design patterns according to customer's request, and Since this pattern sheet also requires a long one, it is inexpensive compared to the cost of the engraving roll, but it could not be said that it was very inexpensive.

Therefore, although the prior application is more suitable for high-mix low-volume production than before, it has hardly been said that the object has been completely achieved.

The present invention has been developed in order to solve the above-mentioned problems and has been developed in order to further advance the previous application, and it is possible to freely design a design according to a request of a customer or a designer, etc. An object of the present invention is to provide a new and useful embossing method that can completely cope with production and is very advantageous in cost.

[Means for Solving the Problems] The present inventors have conducted various studies to achieve the above object, and have reversed the idea from the technique of the previous application to obtain a pattern between the sheet to be processed and the engraving roll. Instead of interposing a sheet, on the back side of the sheet to be processed,
In other words, by attaching a mold material to the surface of the receiving roll and interposing it, and providing a partial cutout or punching pattern on this mold material, or attaching the mold material itself in a pattern shape, engraving the void part where the material of the mold material does not exist It has been found that a portion that avoids or reduces the pressing force of the roll and that the non-embossed portion is formed in a pattern shape can obtain a very excellent effect.

That is, when embossing a sheet with an embossing roll composed of an engraving roll and a receiving roll, the present invention uses the receiving roll to form a mold material for forming a void in a pattern to avoid or reduce the pressing force of the engraving roll. To form a non-embossed portion corresponding to the void portion in the sheet in a pattern-like form material embossing method, wherein the shape material is stuck on the entire receiving roll In such a case, the cut-out pattern or the punched pattern included in the mold material is the gap portion, while when the mold material is composed of many pieces, the gap between the mold materials is the gap portion.

FIG. 1 is a partial sectional view schematically showing one example of the processing method of the present invention.

As shown in this figure, the embossing roll is composed of a rotating engraving roll (1) and a receiving roll (2) as shown by an arrow (a), and a mold (3) is pasted on the surface of the receiving roll (2). It is.

For example, a cutout pattern (4) is partially formed in the pattern material (3) in advance in a pattern.

In this case, the mold (3) is stuck on the entire surface of the receiving roll (2).

Then, the sheet (s) to be embossed is inserted while being pressed between the rotating engraving roll (1) and the receiving roll (2) for applying the mold material.

When the sheet (s) is embossed in this manner, the unevenness pattern (t) of the engraving roll (1) is embossed in the portion where the sheet (s) is pressed at the position where the material of the mold (3) exists. However, since the pressing force of the portion pressed at the position of the cutout handle (4) escapes due to the gap of the cutout hole, the pressing force of the engraving roll (1) is avoided or reduced, and the engraving roll (1) is pressed. Is not done.

That is, the portion of the cutout pattern (4) in which the material of the mold member (3) does not exist becomes a void portion, and the non-embossed portion is formed in a pattern on the sheet (s).

For example, the uneven pattern (t) of the engraving roll (1) is a fine grain surface,
Assuming that the sheet (s) is gold-silver paper and the cutout pattern (4) is heart-shaped, the gold-silver paper obtained by this embossing process has a glossy non-embossing portion on the surface which is mat-shaped by fine particles. The pattern that the heart shape is scattered is formed. It goes without saying that the same applies even if the cutout pattern (4) is a punched pattern.

Further, in the present invention, the die material (3) provided with the cutout pattern (4) or the punched pattern as described above may be attached to the entire surface of the receiving roll (2), but the die material (3) itself is received on the receiving roll (2). In other words, the same effect can be achieved by partially forming the pattern material (3) from a large number of pieces, and by setting the space between these mold materials as a gap.

For example, emboss processing in which many stamp members (3) made of a square pattern paper are prepared and pasted on a receiving roll (2) in a checkered pattern so that stamped portions and non-stamped portions form a checkered pattern. A sheet is obtained.

In addition, it is a matter of course that a cutout or punching pattern may be formed on the template material (3) to be attached to a part of the part.

As the mold member (3) in the present invention, a paper material, a film, a woven fabric, a non-woven fabric, or the like can be suitably used, and a relatively hard mold member (3) is used when the embossing roll (1) is not easily embossed.
The purpose is to make the pattern (3) thicker to completely avoid the patterning by avoiding / relaxing the embossing, and to use a softer and thinner mold (3) if it is enough to ease the patterning. Can be freely adjusted by setting the pattern.

The means for sticking this pattern (3) to the receiving roll (2) is as follows:
An ordinary adhesive may be used, but it is preferable that the adhesive be easily peeled off after processing, so that it is desirable to use an aqueous adhesive or sizing agent.

The processing conditions in the processing method of the present invention vary depending on the purpose, but usually, preferably, the temperature is in the range of 90 to 130 ° C., the pressure (linear pressure) is 10 to 18 tons, and the speed is 5 to 15 m / min.

Examples of the sheet (s) that can be processed by the present invention include various sheets such as gold and silver paper, base paper, processed paper, bonded paper, coated paper, foil paper, transparent or colored film, PVC sheet, and synthetic leather. The pattern material (3) suitable for the sheets to be processed can be arbitrarily designed, attached to the receiving roll (2) and embossed.

[Operation] The present invention is configured as described above, and cuts or punches out a design material, which is made of paper, film, cloth, non-woven fabric, etc., directly on a receiving roll of an emboss roll, or affixes the punched pattern to the entire surface. The embossing process is carried out by partially attaching the pattern material itself or in a pattern shape, and it is very simple and can be finished to a unique handmade taste.

For example, it is possible to express a free pasting pattern such as a torn picture, a normal cutout pattern, a punched pattern, and even a fine pattern cut out by a laser processing machine.

Also, it is sufficient that the mold material is equivalent to one turn of the receiving roll, and the patterning by the mold material is repeatedly expressed for each rotation, and the mold material acts as a kind of plate, so that it becomes a very inexpensive plate, and moreover, the customer and the designer Since it is possible to make freely designed mold materials as required, it can be said that it is a processing technique that is extremely widespread and suitable for small-lot production of many kinds.

[Example 1] A bleached kraft paper (capital wrap manufactured by Otake Paper Industry Co., Ltd.) of 120 g / m ² was used as a template, and this was 10 cm ×
Many pieces were cut into 10 cm square patterns.

This square paper pattern was stuck on an emboss roll receiving roll in an alternating pattern, that is, on a checkered pattern with an aqueous adhesive.

A fine grain pattern was used as an engraving roll. Then, gold paper (Hongshu Paper Industries Co., Ltd .; 90 g / m ² ) obtained by aluminum vapor deposition using the embossing roll is rolled at a roll temperature of 100 ° C., a pressure of 13 tons (linear pressure), and a speed of 10 m / min. Embossed.

As a result, gold paper having a checkered glossy pattern as a whole was obtained in which the portion where the pattern paper was affixed became mat-like due to the fine-grained surface and the other portions maintained the golden luster by avoiding the pressing force.

Example 2 A 100 μm thick polyester film (manufactured by Toyobo Co., Ltd.) was used as a mold material, and heart-shaped cutout patterns were scattered on the polyester film.

This cut-out pattern was wound tightly in a single layer over the entire surface of the embossing roll receiving roll, and affixed with an aqueous adhesive.

 A silk pattern was used as an engraving roll.

Then, the same gold paper as in Example 1 was embossed with the emboss roll under the same conditions. As a result, a gold paper having a ground pattern of a silk pattern with heart-shaped glossy parts interspersed was obtained.

[Example 3] A nonwoven fabric having a thickness of 100 µm (made by Asahi Kasei Corporation) as a mold material
And cut it into a cloud shape (like a cloud floating in the sky) to make a total of five shapes of various sizes, and place the five cloud shapes on the roll surface of the embossing roll receiving roll at an appropriate distance. , And affixed with an aqueous adhesive.

 A cloud pattern was used as the engraving roll.

Then, when the same gold paper as in Example 1 was embossed by the embossing roll under the same conditions, the portion receiving the pressing force at the mold material attaching portion became a cloud-shaped pattern, and the other portion was a gold paper having a golden gloss. Obtained.

[Effects of the Invention] As described above in detail, when embossing a sheet or the like, the present invention attaches a shape material obtained by cutting or punching various patterns to a receiving roll, or forms the shape material itself into a partial pattern shape. It is to paste directly on the receiving roll and emboss it, and it is possible to embody various complicated uneven patterns and glossy patterns on sheets by combining the engraving roll and the stamping material that you have, There are various types of patterns that can be processed, and there is an effect that the number of engraving rolls is not limited at all.

Moreover, in the present invention, the pattern of the molding material can be freely designed according to the requirements of the customer or the designer, the range of the change is infinite, and it is possible to fully cope with high-mix low-volume production. The present invention can be said to be an embossing technology having remarkably usefulness as compared with the conventional technology, for example, because it is extremely inexpensive to produce, since it is very inexpensive.

[Brief description of the drawings]

FIG. 1 is a partial sectional view schematically showing one example of the processing method of the present invention. (1)… engraving roll, (2)… receiving roll, (3)… mold material, (4)… cutout pattern, (s)… sheet, (t)… uneven pattern

Claims (3)

(57) [Claims] An embossing roll comprising an engraving roll and a receiving roll, wherein when embossing a sheet or the like, a pattern material for forming a void portion for avoiding or reducing the pressing force of the engraving roll in a pattern is used. Pasted on
A non-embossed portion corresponding to the gap portion is formed in the sheet or the like in a pattern, and the embossing method for attaching a shape material is provided. 2. The embossing method according to claim 1, wherein the molding material has a cutout pattern or a punching pattern as a void portion in a pattern, and is affixed over the entire receiving roll. 3. The pattern sticking method according to claim 1, wherein the pattern is composed of a large number of pieces, and is stuck to the receiving roll in a pattern, and the interval between the patterns forms a pattern-shaped gap. Embossing method.