JPS61231297A - Special emboss processing of tinsel paper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] B. Purpose of the invention Industrial applications The present invention relates to a method for embossing gold and silver paper.

Conventional technology Previously, when embossing gold and silver paper, the embossing process was simply done using an embossing roll. Problems that the invention aims to solve When paper was made with uneven patterns, the type of pattern was determined by the number of engraving rolls held.

In order to process many patterns, it is necessary to store 4R of many types of engraving rolls, and the cost of these rolls is expensive.
The cost of ancillary equipment was also high, making it difficult to meet the current demand for high-mix, low-volume production.

In addition, conventional embossing processing simply embosses according to the uneven pattern of the engraved roll, so there is little variation, and it is not possible to change the gloss within one pattern or make subtle changes to the pattern or texture. It was considered impossible to produce gold and silver paper with a complex taste using embossing alone.

The present invention was made with the aim of solving these problems, and the type of patterning is not limited to the number of engraving rolls possessed, and moreover, the embossing process has a wide variety of changes with a complex taste. The purpose of this paper is to provide a special embossing method for gold and silver paper that can be used to emboss paper.

Structure of the Invention 11 The structure of the present invention is that when embossing gold and silver paper with an embossing roll, a pattern sheet is interposed between the engraving roll of the embossing roll and the gold and silver paper, and a linear pressure of 13 tons or more is applied. High pressure, high temperature over 100℃,
The gist of this paper is a special embossing method for gold and silver paper, which is characterized by processing at a low speed of 10 m/min or less.

Means to solve the problem: When embossing gold and silver paper, we used an embossing method that had never existed before, in which various pattern sheets were interposed between the engraving roll and the gold and silver paper. As a result of extensive research, we discovered that this composite embossing process was possible if the processing conditions were limited to appropriate conditions, and we were able to create subtle flavors and changes in gold and silver paper that could not be expressed using conventional techniques. They discovered that it is possible to give

FIG. 1 is a schematic side view for schematically explaining the processing method of the present invention.

As shown in this figure, the embossing roll (E) usually consists of an engraving roll (i) and a paper roll (p), and the fabric or paper material is placed between the engraving roll (t) and the paper roll (p).
The engraving roll (1) is rotated while being sandwiched between the rolls and heated and pressurized to emboss the concavo-convex pattern of the engraving roll (1) onto fabric or paper.

The present invention uses gold and silver paper (1) as the material to be embossed, and embossing is performed while interposing a pattern sheet (2) between the gold and silver paper (1) and the engraving roll (1). It is a processing method.

Note that FIG. 1 is a simplified example for ease of understanding, and (g) shows a guide roll, (m) a take-up roll, and (k) a feeding roll.

The most important thing in the present invention is that the gold and silver paper (1) and the pattern sheet (2) are simultaneously sandwiched between the engraving roll (t) and the paper roll (p), and the pattern sheet (2) is sandwiched between the gold and silver paper (2). 1) and the engraving roll (1).

In addition, gold and silver paper in the present invention refers to paper that has a metal film formed on one or both sides of the paper material by metal vapor deposition and has a golden or silver metallic luster, and is usually treated with aluminum vapor deposition. The paper that has been colored is called silver paper, and the paper that has been colored yellow is called gold paper.
These are collectively called gold and silver paper. In addition,
In the case of single-sided gold and silver paper, it goes without saying that the gold or silver side is embossed with the above-mentioned irregularities.

Next, there are two types of patterned sheet (2) in the present invention: a perforated sheet and an uneven sheet.

First, examples of perforated sheets include coarse woven fabrics and paper materials, such as coarsely woven fabrics such as cheesecloth and lace;
Paper materials called Unryūshi and Japanese paper with various patterns are suitable for use.

It goes without saying that nylon shear, polyester shear, etc., which are simple plain fabrics with a coarse weave, can also be used as the perforated pattern sheet (2) having a checkered pattern.

On the other hand, examples of the uneven sheet include films and fabrics having various uneven patterns.For example, it is preferable to print a gravure pattern on the film with coarse paint to create an arbitrary pattern such as a check pattern or a striped pattern. It is available.

When such a pattern sheet (2) is sandwiched between the engraving roll (1) and the gold and silver paper (1) and embossing is performed, the uneven pattern of the engraving roll (1) and the pattern of the pattern sheet (2) are combined. Gold and silver paper with a complex pattern can be obtained, and depending on the type of pattern sheet (2), subtle changes in gloss can be realized in the complex pattern.

This adds a unique flavor that cannot be achieved by simply embossing.

The reason for this is that the conventional metal engraving roll (1) has a high hardness and only embossed the surface with a certain hardness.
In the processing method of the present invention, the embossing hardness is softened by the intervention of the patterned sheet (2), and the degree of this softening changes to be strong or weak depending on the pattern of the patterned sheet (2), and furthermore, when it comes into direct contact with the metal surface. This is because the parts have very complex effects, such as giving off the same luster as before.

By varying the combinations of the engraving roll (1) and the pattern sheet (2), it is possible to create an extremely wide variety of patterns, and to produce a wide variety of products dozens of times larger than the number of engraving rolls in stock. becomes possible.

Next, processing conditions of the embossing method in the present invention will be explained.

First of all, as for the pressure conditions, it is necessary that the linear pressure is at least 13 tons or more. If the linear pressure is less than 13 tons, even if the temperature conditions are increased, the embossing will become unclear and it will not be possible to obtain a complex pattern. As a result of experiments by the present inventors, a particularly preferable range for this linear pressure is about 15 to 18 tons.

The heating conditions for this embossing process are at least 100
It is desired that the temperature is higher than 100°C, and if the temperature is lower than 100°C, the embossing will become unclear and the effect of interposing the pattern sheet (2) will be lost. The most preferable temperature condition varies depending on the type of patterned sheet (2) to be interposed, but it is preferably in the range of 110 to 130°C.

Note that there is no need to particularly limit the upper limits of the above-mentioned pressurizing conditions and heating conditions, and as in the present invention, the patterned sheet (2)
In order to accomplish the purpose of applying heat and pressure while intervening, the above-mentioned lower limit range of heating and pressurization is limited.

Furthermore, it goes without saying that there are limits to the upper limits of heating and pressurization depending on mechanical conditions, conditions of the material to be processed, etc., and these limits vary from case to case.

The processing method of the present invention requires a slow speed of 10 m/min or less; at speeds exceeding 10 m/min, it is difficult to produce the desired complex flavor even if the heating and pressing conditions are increased. This makes it difficult to achieve the purpose of the invention. The preferred range of this speed is about 3 to 7 meters per minute,
If the length is less than 3 m, the processing efficiency will be significantly reduced.

By carrying out the processing of the present invention under the limited conditions of pressure, heating, and speed in this manner, it becomes possible to obtain gold and silver paper with a rich variety of excellent taste.

Example 1 A golden paper made by vacuum-depositing aluminum on a paper material (Torinoko; 85 g/mZ) manufactured by Honshu Paper Industries Co., Ltd. and colored yellow.
Emboss processing was carried out on E by using an engraved roll having a large nashiji pattern while adding rayon Unryu paper manufactured by Sanso Paper Co., Ltd. with a tortoise shell pattern (30 g/male).

The embossing conditions include a linear pressure of 16 tons and a temperature of 120'.
When the test was carried out at a speed of 5 m/min, the soft fibers of Unryu paper gave the golden surface a soft matte finish, and the transparent parts of Unryu paper had the luster of a pear-like finish.
An embossed golden paper product with a deep flavor that is a combination of both was obtained.

When the embossing conditions were set to a linear pressure of 10 mm and a temperature of 80 mm, the entire surface became unclear even at the same speed, and the taste described above could not be produced.

Example 2 The same golden paper as in Example 1 was used, and a lattice pattern (30 g/
Emboss processing was performed using a large ground pattern engraving roll while adding ♂).

The processing conditions were a linear pressure of 13) m, a temperature of 1300 C, and a speed of 3 m/min.

As a result, a gold-colored embossed paper with a very rich taste was obtained, which was a combination of a soft matte-like lattice network and a large glossy background pattern.

The processing conditions are the same as the linear pressure and temperature above, and the speed is 1.
When the speed was increased to 2 m/min, the deep-tasting embossed golden paper described above could not be obtained.

Example 3 A paper made of rayon paper (Torinoko, 85 g/male) manufactured by Honshu Paper Co., Ltd. was placed on silver paper with aluminum vacuum-deposited.
Emboss processing was performed using a fine-grained surface engraving roll while attaching +am square cheesecloth.

The conditions for this embossing process are a linear pressure of 18 tons and a temperature of 1
When the temperature was set at 10° C. and the speed was 4 m/min, a silver paper was obtained in which there was little change due to differences in gloss, and the pattern of cheesecloth was added to the fine grain surface to realize a concavo-convex pattern with complex variations.

In addition, when an experiment was carried out by lowering only this temperature condition to 85'C, only an indistinct uneven pattern was obtained.

Example 4 A piece of golden paper as in Example 1 was attached with Bizen Japanese paper with a chrysanthemum arabesque pattern, and embossing was performed using a plain roll.

The processing conditions are a linear pressure of 16 tons and a temperature of 130"G.
When we conducted an experiment at a speed of 7 m/min, the glossy and rough areas of the Bizen washi appeared to be pressed, and a very beautiful pattern was printed on the surface of the golden paper.

When this condition was changed only to a speed of 20 m/min, a clear uneven pattern could not be obtained.

Example 5 Using the same golden paper as in Example 1, adding a concave-convex pattern film as shown below on top of it, and using an IM type engraving roll (silk pattern) under the same processing conditions as in Example 1. Then I did the embossing process.

Irregular pattern film: Coarse-grained paint is applied to the surface of a 15 micron polyester film using a gravure printing machine [50% of Mapico RIIO-7 (manufactured by Titanium Kogyo Co., Ltd.) and Fullhalon Latex (manufactured by Kureha Chemical Industry Co., Ltd.] This is obtained by printing a striped pattern using a mixture of different materials and drying it.

As a result, a golden paper with a textured pattern with a complex taste was obtained, which was a combination of a silky pattern and a soft, glossy striped pattern.

When this processing condition was carried out at a linear pressure of 15 tons, a temperature of 90'C, and a speed of 10 m/min, only an indistinct uneven pattern was obtained.

C. Effects of the Invention As explained in detail above, the present invention involves, when embossing gold and silver paper, simultaneously meshing patterned sheets and applying heat and pressure. Various complex uneven patterns can be realized by combining these, and the types that can be processed are not limited to the number of engraving rolls possessed, making it possible to obtain a wide variety of uneven patterns.□ It has very good effects.

Moreover, this uneven pattern embodies changes in gloss and softness of texture that could not be expressed using conventional techniques, making it possible to create gold and silver paper with complex, extremely subtle changes and taste. It is.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view for schematically explaining the processing method of the present invention. (E)... Emboss roll, (t)... Engraving M O-
(p)... Paper roll, (g)... Guide roll, (m)... Winding roll, (k)... Feeding roll, (1)... Gold and silver paper, (2 )...Pattern sheet No. 1
Illustration procedure amendment 6
1 Indication of the case 8 Patent Application No. 071694 of 1985 2 Name of the invention Special emboss processing method for gold and silver paper 3 Person making the amendment Relationship to the case Patent applicant 4 Number of inventions increased by attorney's amendment O Subject of amendment Contents of amendments to the "Detailed Description of the Invention" section of the specification (1) The following sentence should be inserted between lines 5 and 6 on page 6 of the specification. ``Also, the term ``gold and silver paper 1'' in the present invention is used as a general term for something that looks like a paper-like thin sheet, and the material is not limited to paper. For example, a gold and silver sheet made by applying the metal vapor deposition process to a thin plastic film or the like is also included in the "gold and silver paper" in the present invention.

Claims (1)

[Claims] 1. When embossing gold and silver paper with an embossing roll, a pattern sheet is interposed between the engraving roll of the embossing roll and the gold and silver paper, at a high linear pressure of 13 tons or more, and at a temperature of 100°C. A special embossing method for gold and silver paper, which is characterized by processing at a high temperature of 10 m/min or less and at a low speed of 10 m/min or less. 2. The special embossing method for gold and silver paper according to claim 1, wherein the patterned sheet is a perforated sheet such as Unryu paper or cheesecloth. 3. The special embossing method for gold and silver paper as claimed in claim 1, wherein the patterned sheet is an uneven sheet.