JPH0226989A - Sheet material having crepe pattern imparted with steric feeling - Google Patents

Abstract

PURPOSE:To obtain a sheet imparted with a crepe pattern having steric feeling by partially or heterogeneously applying a processing material such as a polymer solution to a sheet of paper, fabric, etc., and subjecting the treated sheet to the process such as bending or creasing. CONSTITUTION:A processing agent such as a polymer solution or a coating liquid is partially or heterogeneously applied to a sheet of paper, fabric, etc., composed of a layer of entangled fibers or to a composite sheet of the above sheet and a plastic composition. The coated sheet is subjected to crumpling and creasing treatment with a crumpling machine to develop a strained pattern at the boundary of the attached part and the non-attached part of the processing agent and obtain the objective sheet having steric and decorative crepe pattern.

Description

[Detailed description of the invention] (a) Industrial fields of use Materials used for miscellaneous goods such as clothing, bags, bags, footwear, shoes, stationery such as covers and cases, interior decoration such as wall coverings and furniture, etc. Regarding.

(b) Conventional technology In the past, textile sheets and synthetic leathers have been printed or surface-treated, but we have deliberately changed the physical properties of the sheet material to be processed and the material for processing. However, there was no product that underwent further processing to develop its characteristics.

C→ Problem to be solved by the invention A sheet-like material such as paper or fiber, and a composite sheet-like material (for example, artificial leather) with a plastic composition based on these sheet-like materials, or a plastic composition. Composite sheet-like products (hereinafter referred to as "sheet-like materials for processing") in which the membrane-like material of the material is layered, are subjected to coloring, printing, embossing, and in some cases, further rolling processing. However, although they were decorative, they were uniform and monotonous, and there was little variation in appearance, lacking a three-dimensional feel, a polyurethane feel, and a natural feel.

2) Measures to solve the problem: In order to give the sheet material to be processed a natural look that is not uniform and monotonous, processes such as bending, beating, rolling, or wrinkles were used instead of embossing. .

In order to increase the effectiveness of such processing, before the processing, during or after the formation of the sheet-like object to be processed,
Any layer constituting the sheet material to be processed is partially or nonuniformly impregnated, coated, or processed with a processing substance that has a different strain-forming ability from that of itself. It was processed to partially change the density per unit volume, resulting in non-uniform physical properties. After that, the above-mentioned bending and rubbing processes were performed.

(e) Processing the interior or surface of any layer constituting a sheet-like object to be processed by partially or unevenly impregnating or coating with a processing substance. As a result, the processed part has a non-uniform structure, and the physical properties such as density, elongation, tensile tear, rupture, rigidity, and stiffness differ locally, and the state of the bones and their The roundness and wrinkles of the parts become uneven or complex.

(f) Example Example 1. The weight of the sheet material to be processed is approximately 100jF/
A. Using a 0.8 mm thick non-woven fabric (e.g. Toyobo Spunpond LAE4101N, white), apply a brown water-based color using a vinyl acrylic resin as a vehicle to create a cloud pattern of approximately 4011/rye. Screen print and dry. Next, a pale beige color liquid of ethylene/vinyl acetate emulsion was printed on the entire surface at about 12 f/l using a mesh gravure coater and dried.

This material is then kneaded to create wrinkles. In the kneading machine, the workpiece is guided through a preheater to the kneading section. Here, after the workpiece is held between a pair of uneven gripping rolls (also known as kneading rolls) at a predetermined interval, the interval between the gripping rolls is narrowed and the gripping rolls are operated. Rotate or swing to the left to perform kneading.

After the rolling process, the gripping rolls are released and the fabric is sent to a heat setter where it is heat set at 120-130°C and cooled to complete the wrinkle process.

In areas where a large amount of colorant has been deposited, the product has greater rigidity than areas where less colorant has adhered, and the wrinkles are thin and have an acute angle, while in other areas the wrinkles are large and have an obtuse angle.

Each corrugator muscle is different from simple stamping or embossing, and branches are formed within the larger corrugator muscle.

In the case of nonwoven fabric or paper that is formed in layers, the middle layer is impregnated with a hard resin liquid composition (coloring agent) to create a polka dot pattern. If a soft type resin composition is treated to reduce the density and then rubbed, almost no wrinkles will be formed in the polka dot pattern area, and wrinkles will be formed in other areas as needed, and the wrinkles will not change when rubbed. If you have a trust,
Areas where the resin content is low will swell and give a porium feel.

These are used in clothing, bags, and footwear.

Example 2. As the sheet-like material to be processed, a semi-finished product of vinyl leather (light gray color) is used, which is made of satin-woven fabric and a soft vinyl sponge layer with no outer skin. On the surface of this vinyl sponge, a mouse-colored composition of an oil-based vinyl/acrylic vehicle was applied to screen a tortoiseshell pattern with no hexagonal streaks, with pattern parts corresponding to tortoiseshell striations separated by 1 to 2 mm, and with no blurred borders. Printing (approximately 5 (Hl/d) L, dry.

On the other hand, apply about 100% of the transparent polyurethane liquid for the skin on the release paper.
After fl/d coating and drying, approximately 100 g/- of transparent polyurethane liquid for adhesive was applied, Semitra R was applied at approximately 80°C, and then treated with the above processing substance (resin/colorant composition). After laminating and heating the processed sheet material,
Peel off the release paper.

This product is used in Example 1. Perform the rolling process in the same way.

In this case, the wrinkles near the border of the tortoise shell are different from the wrinkles in the tortoise shell part. Moreover, it has a porium feel that maintains a tortoise shell shape to some extent.

Conversely, for the pattern, a material for processing that is more rigid than the tortoise shell is used near the boundary of the tortoise shell, but in the case of the same type of material, if a large amount of the same material is used, the resulting pattern will have different wrinkles.

The above is an example of implementation, but the raw materials that can be used include sheet-like materials for processing, such as sheet-like materials such as paper or fiber sheets, and layered materials with intertwined fibers. Sheet-like products, laminates of paper and fibers or fibers and fibers with different physical properties, composite sheet-like products of plastic compositions based on these materials, such as artificial leather, and plastic compositions. A single-layer or multi-layer structure, such as a sheet-like material consisting of a film-like material, is used.

Processing substances for these sheet-like objects include various synthetic resins and colorants (including pigments, metal powders, inorganic powders, etc.) using synthetic resins as vehicles, and their usage forms include liquid, It may be in the form of powder or flakes. The compositions may also be foaming compositions containing gas or blowing agents.

When processing a sheet-like material to be processed with a processing substance, the method of using raw materials is such that even if the thickness or density is the same under the same conditions and exhibits similar physical properties (e.g. stiffness), Because the shaped object is not uniformly processed but partially processed, its physical properties differ from the unprocessed part. However, it is more effective to use materials with different distortion pattern forming abilities, that is, materials in which the sheet material to be processed and the material to be processed have opposing distortion forming abilities. For example, if the material is polyester, the material is processed with ethylene/vinyl acetate, and if the material is acrylic, the main component is polystyrene.

Regarding the method of treating a sheet material to be processed with a processing substance, if the fibers are intertwined and form a layer, in the process of forming a sheet in any of the layers, Later, any desired pattern etc. can be impregnated or coated by spraying, screen printing, gravure coating, other coatings, flow coating, press-fitting, etc., dried, and embossed as appropriate to improve the thickness of the thick and thin parts. Due to differences in the degree of attachment of processing substances, etc., a single sheet-like object has dense and dense parts, and has various rigidity and other physical properties, making it asymmetrical, and causing various distortions. be able to.

When a processing substance is attached onto a film-like body (film or sheet) of a plastic composition, methods such as spray screen printing, gravure coating, flow coating, etc. can be used.

In the case of forming a composite sheet-like product, it is multi-layered using materials of the same type but different in density, rigidity, and other physical properties, or of different types of materials.

In order to impart a natural pattern to the irregular sheet material to be processed as described above, methods such as bending, bending, beating, rubbing, and wrinkles are used. These methods can be expected to have a loosening effect and a wrinkle effect at the same time. In addition, due to the fact that there are dense and dense parts in the sheet material to be processed,
Irregularities and wrinkles create complex areas of sparseness and density, giving rise to a three-dimensional effect and a porium feel.

(G) Effects of the Invention The sheet material to be processed is coated with a processing substance partially or non-uniformly, or the strain forming abilities of the sheets are greatly different. Alternatively, by using materials that are mutually contradictory, it was possible to make the sheet material to be processed even more asymmetrical, differentiate the ability to form distortions, and diversify the overall formation.

By doing so, the wrinkled pattern is given more three-dimensionality and decoration.

Claims (1)

[Scope of Claims] 1. A sheet-like material such as paper or fiber in which fibers are intertwined in a layer, and a composite sheet-like material with a plastic composition using these sheet-like materials as a base material,
Alternatively, during or after the formation of a sheet-like object to be processed, such as a composite sheet-like object in which a film-like object of a plastic composition is layered, a polymer solution, a coating liquid, or a powder may be added to any of the layers. Processing materials such as or flake-like compositions are partially or non-uniformly impregnated, coated or otherwise processed to change the physical properties of the sheet material to be processed and fold it. The wrinkled pattern is characterized by being subjected to processing such as bending, beating, rubbing, and wrinkling to give a three-dimensional effect to the formation of the distorted pattern in the areas where the processing substance is attached and the areas where the processing substance is not attached. A sheet-like material with a texture. 2 Correlatively, a sheet-shaped material with a wrinkled pattern giving a three-dimensional effect according to claim 1, characterized in that a sheet-shaped material to be processed and a processed material having different strain forming abilities are used. thing. 3. For sheet materials to be processed that are likely to form distorted patterns, use a processing substance that is difficult to form distorted patterns under the same conditions, or use a material that has a high density per unit volume. A sheet-like article having a wrinkled pattern with a three-dimensional effect as claimed in claim 1. 4. For sheet materials to be processed that are difficult to form distorted patterns, use processing materials that are likely to form distorted patterns under the same conditions, or A sheet-like article having a wrinkled pattern with a three-dimensional effect according to claim 1.