JPH03206191A - Partially exposed sheetlike material of processing composition - Google Patents

Abstract

PURPOSE:To obtain a decorative sheetlike material having exposed coarse particles, etc., and a three dimensional feeling by coating the surface of fiber sheet such as paper, woven or knitted fabric with synthetic resin containing short fibers and inorganic or organic coarse particles and then partially dissolving or eluting a binder of the resin. CONSTITUTION:A fiber sheetlike material such as paper, nonwoven fabric, woven or knitted fabric is impregnated or coated with a processing composition composed of a synthetic resin comprising short fibers of synthetic yarn, inorganic or organic coarse particles or a material substance in a small lump state and the surface part of the coated and formed part is partially dissolved or diluted by using a solvent which is a non-solvent to the material substance and a solvent to the resin or optionally brushed, removal of soluble part is promoted and the material substance of indeterminate size is exposed to give a sheetlike material having a three dimensional feeling and decoration.

Description

[Detailed Description of the Invention] (a) Industrial Application Field The processed final products made from the sheet-like material of this invention are covers for notebooks and binders, stationery such as cases, body parts such as bags, bags, footwear, etc. It relates to items used for clothing such as household goods, blousons and windbreakers, interior decoration and furniture such as wall coverings, cushions and chairs.

(Explained) Conventional technology In the past, sheet-like materials were processed using solvents or solvents, such as by coating the entire surface with paint or ink and wiping off a portion of it to create an antique leather. There was also synthetic leather.

There is also a kind of spunpond-type nonwoven fabric called suede, in which a part of the structural elements of a sheet-like article is eluted to create an ultrafine fiber structure.

(c) Problems to be Solved by the Invention When removing a part of the printing on a sheet-like material such as leather or synthetic leather by dissolving it with a solvent and wiping it off, processing is limited to only the printed surface, and the characteristics of the base material of the sheet-like material are It was not intended to be used.

Suede is related to the base material itself, which is a nonwoven fabric, and its structure is related to the internal structure of the sheet-like product. However, the present invention is based on a part of the processing composition and is concerned with the appearance of a sheet-like article, and has little relation to these conventional similar problems.

(d) Means for solving the problem Tangible objects for revealing a part of the processing composition include:
Most of the materials, for example, 50% or more of the materials used, contain irregularly sized tangible objects with at least an average size of 50 microns or more than the thickness of the film or sheet. In order to bring out the tangible objects from the sheet of the composition, a general method is used that is a non-solvent for the tangible objects in the composition and a solvent for other material elements, such as synthetic resins, etc. In some cases, a substance of irregular size is revealed by coating it with a solvent or dipping it in a solvent to dissolve or elute a part of the surface. It is something.

(E) Function The processing composition for making sheet-like products may be coarse particles, granules,
Avoid using fibrous, amorphous, solid tangible objects and synthetic resins or natural products, and apply or soak the sheet-like material in a solvent for the latter synthetic resins or natural products.
When dissolved, the insoluble, amorphous solid material remains and is exposed on the surface of the sheet-like material, creating a relationship similar to that of an island in the sea.

Buffing or brushing can be used as an auxiliary means to remove the soluble and swellable parts as quickly as possible or to reduce the amount of deposits on the surface of the tangible object.

(F) Example Vinyl chloride resin (Sumitomo Chemical Co., Ltd.: Sumiriso) PX-
N) 70 parts, 30 parts of ethylene-vinyl acetate copolymer resin (manufactured by Sumitomo Chemical Co., Ltd.: SUMITE KA-10), 80 parts of DOP as a plasticizer, 30 parts of secondary plasticizer Vansolve H for dilution (manufactured by Ryoto Oil Sales Ltd.) Part, Organotin compound-based composite stabilizer 3
1 part, 5 parts red processed pigment, 15-30 denier, average length of about 1 tn'rn. A coating composition was prepared by mixing 3 parts of polyester/rayon mixed staple fibers with 40 parts of silica having a particle size of 50 to 300: 0.7rrLfi using a machine similar to Curtain 7 Row Coater.
Apply the coating composition through the gaps on a resin-treated brown or co-dyed cotton fabric (plain weave. (own) 20 count @) 20 count/2
:42 The silica is brushed with a brushing roll impregnated with the main solvent to dissolve or swell the synthetic resin on the silica surface, remove or reduce it, and expose the silica portion.

The above is just one example of the finishing process, but the finishing process includes printing, printing, spraying, coloring, patterning, polishing, matting, surface treatments such as texture improvement, wrinkles, embossing, etc. on paper and artificial materials. It can be done as appropriate in the same way as leather processing.

Regarding the raw materials that can be used, the substrates to be coated with the processing or coating compositions include non-woven fabrics, woven fabrics, knitted fabrics, and their raised or flocked fibers. In this case, processed cloth is also used.

For example, a coarse, low-density woven or non-woven fabric base material may be treated as is or treated with a binder or primer resin to create fibers of the same or different type as the fibers of the base material. Use needle punched. A processing composition or synthetic resin is coated or impregnated thereon, and then treated with a solvent as in the example.

In this case, the fibers used for needle punching are those in which at least one of the constituent components is swollen or soluble in the solvent. For example, it is a composite of polyester and polyacrylic or polystyrene. By treating it with a solvent, it becomes thinner, increases the overall density, emphasizes the color tone and condition of the insoluble fibers, and enhances the decorativeness of the appearance.

The compositions to be applied to these substrates, or the processing compositions themselves used to form sheet-like objects, are made by turning synthetic or natural resins, latex, etc. into paints, and using inorganic or organic coarse particles or granules. , or includes tangible objects such as small lumps.

Inorganic calcium carbonate, magnesium carbonate, and silica are usually used as fillers for plastics and rubber.
Powders with a diameter of at least 50 microns or less, and generally 30 microns or less from the viewpoint of appearance and physical properties, are used. but,
This invention differs from that in that it utilizes the shape and unevenness of the notebook to appear on the surface of the notebook and is expected to create a three-dimensional decorative effect. The coating thickness is preferably at least 50Jcm or more and less than the coating thickness, and synthetic or natural products such as pigments, resin pellets, natural shirasu balloons, and similar products are used.

As for fibrous materials, gokai, natural animal and plant fibers, and processed products thereof can also be used.

Solvents that partially swell and dissolve materials other than these tangible materials include water and detergents for natural products and their processed products. For synthetic resins and elastomers, various organic solvents that are compatible with each can be used. Generally, they are alcohols, esters, ketones, aliphatic or aromatic hydrocarbons, etc.

As for processing methods, spraying, knife or roll coating, casting using a flow curtain, calendering, which involves heat softening and rolling, etc. can be used to apply or spread the processing composition. , dipping, spraying, coating, etc., and methods such as buffing, brushing, air knife, etc. are auxiliary effective for promoting dissolution and removal of dissolved substances.

A non-solvent for the workpiece, water, etc. are used to promote coagulation and wash after removing the dissolved material.

(g) Effects of the invention When the composition for processing contains tangible substances such as coarse particles and is made into a sheet, the surface becomes rough and uneven, and air is easily included, resulting in the formation of fins and microfalls. or,
Even with embossing, defects were created, and in the past, this process was unreasonable and would not have been carried out.

This invention takes advantage of this defect or defective element, uses a solvent that is not often used for processing sheet-like materials, swells or dissolves it, and removes that part.
By exposing tangible objects such as coarse grains, it is possible to give a three-dimensional appearance and decorativeness to the appearance, and to obtain a sheet-like product that has not been seen before.

Claims (1)

[Scope of Claims] 1. The base material of paper, nonwoven fabric, woven fabric, knitted fabric, and fiber sheets such as those raised or flocked with short fibers such as chemical or synthetic fibers, plant or animal fibers, etc. Natural fibers, synthetic resins containing tangible substances such as inorganic or organic coarse particles, granules, or small lumps, or natural resin analogues, or processing compositions that act as binders for tangible substances. After processing by impregnation, coating, etc., a part of the part that forms a binder for the synthetic resin, etc. of the processing composition is coated with a solvent for the synthetic resin, or immersed in the solvent. 1. A sheet material in which a part of a processing composition has been exposed, characterized in that insoluble components in the processing composition are exposed on the surface of the sheet material by dissolving or eluting the processing composition. 2 Process the base material of the fiber sheet with a processing composition, further treat it with a solvent, partially dissolve, elute or swell the parts other than the tangible material, and use physical means such as buffing, brushing, air knife, etc. A sheet-like material in which a part of the processing composition according to claim 1 is exposed, characterized in that the removal of the soluble portion is promoted and the exposure of the tangible material is made conspicuous. 3. A sheet-like product is produced using a processing composition such as a synthetic resin as a binder without using a base material such as a fiber sheet-like product, and synthetic resins, etc., which are one of the components thereof, are used as the main ingredient. 2. A sheet-like material in which a part of the processing composition according to claim 1 is exposed, wherein a part of the processing composition is dissolved or eluted, and insoluble components are exposed on the surface of the sheet-like material. 4 Using a coarse, low-density woven fabric or non-woven fabric as a base material, it is used as it is, or treated with a resin processing agent such as synthetic resin, or a binder, and needle punched fibers of the same type or different type as the base material. It entangles in the base material and dissolves or elutes a part of the synthetic resin, etc. that has been processed from the base material, either as it is or after being processed by impregnating or coating with a processing composition or synthetic resin liquid. 2. A sheet-like article on which a part of the processing composition according to claim 1 is exposed, characterized in that an insoluble component is exposed on the surface of the sheet-like article. 5 Coarse, low-density woven or non-woven fabric base material;
and the fibers used for needle punching this base material, wherein the fibers have a composite composition, and at least one of the components is swellable or soluble in a solvent. A sheet-like material with a part of the composition for use exposed.