JPS59116448A - Raised sheet having three-dimensional pattern and productionthereof - 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 The present invention relates to a raised sheet having a surface uneven three-dimensional pattern of an arbitrary pattern and a method for manufacturing the same. More specifically, a sizing agent solution is mainly printed or partially applied on the raised sheet, the pattern of the bark film is partially adhesively coated, and the non-printed areas are melted or thermally decomposed by heating at high temperature. After Taru.

This is a raised sheet obtained by removing the bark film.

Conventionally, many of the methods proposed for imparting such surface unevenness patterns include printing or partially applying a fiber swelling agent, followed by heat treatment or (1) raising. A method is known in which a synthetic resin is printed in a pattern, reaction-fixed, and then the non-printed areas are raised.

However, in the former method, the fabric is partially dissolved or decomposed by printing with a fiber dust agent, so an appropriate swelling agent must be selected depending on the type of fiber. Depending on the type, there is no applicable swelling agent, so this technique cannot be used.

In addition, the swelling agent tends to remain in the A5 after treatment, which tends to cause problems such as skin damage in practical use.

In addition, in the latter method, the synthetic resin is reacted and fixed, so it is extremely difficult to remove the synthetic resin in the end. Therefore, depending on the material of the fabric, the physical properties may be significantly deteriorated or the appearance of the fabric may be damaged.

Furthermore, as a fabric with a general uneven pattern.

Some are heated and pressed using an emboss roller or the like with an engraved uneven pattern. Such a three-dimensional patterned fabric has four parts on the back side of the part where the surface convex part is formed, and a convex part on the back side of the part where the first surface part is formed. Therefore, such a fabric is easily deformed by heat, tension, etc., and is stable in handling.

The present inventors have overcome the above-mentioned drawbacks and have discovered a napped sheet with an uneven pattern and a method for producing the sheet with extremely high productivity and quality without being limited by the type of fiber. That is, the present invention provides a raised sheet having unevenness and a three-dimensional pattern, characterized in that the fibers forming the recesses are at least partially melted or thermally decomposed. It is manufactured by a method of forming a three-dimensional pattern on a raised sheet, which is characterized by removing the agent.

The present invention is achieved by adopting such a technical configuration.

For the first time, it was possible to easily produce high-quality raised sheets with a sharp uneven pattern and excellent shading and coloring effects using simple means and with stable quality. It is.

The raised sheet in the present invention includes thermoplastic synthetic fibers such as polyester, polyamide, and polyacrylic, vegetable fibers such as cotton and rayon, animal fibers such as wool, and mixed fibers thereof. In such a raised sheet, there are no restrictions on the fiber material, structure, or single fibers constituting the sheet, but it is preferable that the fineness of the single fibers be 1 denier or less, particularly 0°6 denier or less. , excellent in high quality with remarkable sharpness of unevenness.

For example, suede-like artificial leather made of these ultra-fine fibers and a high-molecular elastomer binder has the highest quality grade 1.
We can provide quality products.

Next, the present invention is characterized in that the raised portion of the raised sheet has an uneven three-dimensional pattern, and the recessed portion of the three-dimensional pattern is at least partially composed of fibers that are melted or thermally decomposed. .

Here, melting or thermal decomposition means physical and chemical deformation due to heat; for example, fluff made of thermoplastic fibers is thermally melted.

Furthermore, it is subject to chemical decomposition effects such as combustion, but fluff made of vegetable fibers such as cotton and rayon is subject to chemical decomposition effects (including carbonization), and the non-melting and non-thermal decomposition parts are It has a shorter lacquer fiber length. In other words, at least the tips of the fluff of the raised part constituting the four parts of the present invention are melted or thermally decomposed, and compared to the raised part of the non-melted and non-thermolyzed part, it is dyed with a coloring agent such as a dye. It has a large capacity and can be colored with flag colors.

Therefore, when the raised sheet of the present invention is dyed, it is colored in shading, and the sharpness of the unevenness and three-dimensional pattern becomes even more pronounced than before the first coloring.

In the raised sheet of the present invention, the fluffs in the raised raised portions of the recesses are preferably independent one by one, and it is preferable that there are no joints such as fusion, curling or crimping from the viewpoint of quality of texture.

Next, a method for manufacturing the raised sheet of the present invention will be explained.

That is, the present invention mainly involves printing or partially applying a sizing solution onto a napped sheet in an arbitrary pattern, and then drying the sizing solution to the extent that movement of the sizing solution on the napped sheet is suppressed. It is manufactured by forming a glue film pattern partially, then melting or thermally decomposing only the non-printed parts by heating at high temperature, and then removing the glue pattern by washing with water or scouring. .

In the present invention, a sizing agent solution is printed or partially applied on the raised sheet, but the sizing agents used in the present invention include starches,
Natural glues such as natural rubber and seaweed, cellulose derivatives, and processed tendons. Processed glues such as processed natural rubber, semi-synthetic glues, and synthetic binders such as vinyl derivatives are the main ingredients, and are not affected by high-temperature heat treatment.

It is preferable to use one that can be easily removed by washing with water after heat treatment.

The concentration of these glues varies depending on the type of glue, the printing method, and the degree of unevenness of the desired three-dimensional pattern, but generally a viscosity of about 1.000 to 30.000 Cps is desirable. Depending on the purpose of processing, penetrating agents, wetting agents,
Assimilating agents, dyes, other surfactants, etc. may be mixed.

In particular, when dyes are mixed and used, only the printed areas are colored, making it possible to create a pattern with a different color from the non-printed areas.

Furthermore, as a method for printing such glue-cut heart fluid.

Hand Print 6 This can be easily performed using conventional textile printing methods or coating techniques such as roller printing, auto screen printing, and rotary screen printing.

Next, the printed raised sheet is dried or heat-treated.
A pattern of glue film is formed partially. The conditions for drying the sizing solution after printing on the napped sheet are essentially as long as the drying is carried out to the extent that movement of the sizing solution on the napped sheet is suppressed.

Air drying or dry heat treatment at 80 to 200 degrees for about 0.5 to 10 minutes is performed. Also, depending on the purpose of processing, after the above drying or without drying, 100~130°015~60
Even if steaming treatment is applied for about a minute, the object and effect of the present invention will not be impaired.

Examples of the high-temperature heating method include heating methods that can melt or thermally decompose substantially only the napped portions under no load, such as infrared heating and sintering. The heating temperature varies depending on the type of fiber in the target raised part, but is generally 200°C.
or more is required. In the case of sintering, the commonly used sintering machine controls the setting of conditions that match the desired sintering effect, while applying high-temperature heating effects only to areas where no glue film is formed. be done. Therefore, when using a sintering machine, the strength of the sintering effect is adjusted by appropriately selecting the strength of the burner flame and the traveling speed of the napped sheet.

The above series of processes of adhesive printing, heat treatment, and high temperature heat treatment are as follows:
It may be applied either before or after dyeing the napped sheet. After heating at high temperature, the adhesive film is removed to obtain a raised sheet with an excellent three-dimensional pattern.

The method for removing the sizing agent varies slightly depending on the type of sizing agent, but washing with water, washing with hot water, or general scouring is performed.

Of course, depending on the type of sizing agent, even better effects may be obtained by treating it with a desizing agent.

In this way, the newly developed method does not apply any mechanical action to the surface of the raised sheet, such as the raising treatment after printing with a glue, so the raised parts that form the convex portions are mild, and the uneven effect is of a quality other than sharp. An extremely excellent three-dimensional pattern can be obtained. In addition, in the present invention, the uneven pattern is applied only to the raised portion of the sheet surface, and does not have any effect on the base fabric of the raised sheet, so unlike fabrics with uneven front and back surfaces such as embossed fabrics, the quality is extremely stable in handling. Becomes the property of Furthermore, since the heat receiving effect during manufacturing differs depending on the uneven portion, it is possible to simultaneously create a pattern of shading and lightness through dyeing.

A more specific explanation will be given below using Examples.

Example 1 A starch-based glue was printed in a pattern on a raised knitted fabric made of polyacrylic fibers by hand printing under the following conditions.

FT-51 (manufactured by Kyoto Seikai) 80 parts water
20 club activity level 25. ooocp
s screen mesh 10 [] After printing, dry at 60°C for 60 minutes and under the following conditions: Example flame height: 2.7 cm Running speed (2 passes) IQQ, m/division control O Desco AP concrete (manufactured by Rakuto Kasei Kogyo) 2 gl150 treated with desizing side under the following conditions, washed with water, and dried
'a x 20 minutes As a result, a raised knitted fabric with an excellent uneven pattern was obtained.

Example 2 A suede-like artificial leather gray fabric made of a non-woven fabric of polyenetel ultrafine fibers with a single yarn fineness of 01 d and a polyurethane binder was printed with a 9th order locust bean gum type glue in a pattern using a rotary screen printing machine.

Maybrocam (12%, manufactured by Maypro) 50 parts water
50 club activities degree
6. OOOc ps screen mesh
80 Printing (z, dried for 5 minutes in SO'C, 9.
The fabric was washed with hot water and water at 90°C for 160 minutes, dyed with a brown disperse dye using a jet dyeing machine at 160°C for 60 minutes, and dried.

As a result, a suede-like artificial leather with an excellent three-dimensional unevenness effect, the areas where the paste was not printed was dyed darker than the printed areas, and the unevenness effect and the shading effect was obtained.

Claims (1)

[Scope of Claims] (11) A raised sheet with a three-dimensional pattern, characterized in that the fibers forming all the recesses are at least partially melted or thermally decomposed. (2) A method for producing a raised sheet having a three-dimensional pattern, which comprises printing a glue on the raised surface of the raised sheet, heating the raised surface at a high temperature, and then removing the glue.