JPH0633576B2 - Synthetic leather manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for producing synthetic leather.

[Prior art]

As is well known for conventional synthetic leather, for products with a design pattern on the surface, a synthetic resin is applied to release paper that has been embossed beforehand to form a film, and this is transferred to a plateau that is the backing material, Alternatively, a synthetic resin film is adhered to a plateau as a backing material, and wrinkles and irregularities are formed on the plateau with an embossing roller or the like to make it look like leather.

[Solving problem]

DISCLOSURE OF THE INVENTION The present invention eliminates the above-mentioned conventional concept, and provides a synthetic leather which is embossed with a pattern or the like and has wrinkles on the surface without using the above-mentioned equipment.

[Solution]

The plateau that contracts by giving water or heating is used as the backing fabric, and the entire surface of the flocked fabric in which short fibers are planted with an adhesive in a desired pattern pattern on the plateau is coated with an ultrathin synthetic resin film. By giving water to or heating
Along with the plateau that is the backing material, of the above ultra-thin synthetic resin film,
The part covering the above-mentioned short fiber planting surface is made of synthetic leather which is slightly wrinkled, and the other part is wrinkled remarkably.

〔Example〕

A plateau that shrinks by washing with water or ironing, for example, a woven fabric such as cotton and staple fabric, a knitted fabric, a non-woven fabric, etc. is used as the backing fabric. After the short fibers are planted by a method, etc., the short fibers attached to the area other than the adhesive application surface applied to the pattern are removed, and then heat drying is performed to fix the short fibers to the pattern in the pattern. Make a flocked fabric with a pattern of short fibers.

An ultrathin film made of synthetic resin, such as urethane, is formed on the entire surface of the flocked fabric on which the design pattern of short fibers is formed.
This film formation may be carried out by a conventional coating method so as to coat the entire surface of the pattern pattern formed by the short fibers of the flocked fabric, or the release paper may be coated with the above synthetic resin to form a film. Before making it dry, transfer the film, or coat release paper with a synthetic resin to form a dry film, and coat the surface with a hot-melt adhesive to dry it. To make a transfer paper to transfer the film made of the synthetic resin, and superimpose the surface of the transfer paper coated with the heat-fusible adhesive with the surface of the flocked fabric on which the pattern of short fibers has been formed, and heat and press this normally. The above-mentioned synthetic resin film may be transferred to the entire surface of the flocked fabric on which the pattern pattern of the short fibers is formed by the transfer method described above.

With the latter means, if the transfer paper is prepared, it is sufficient to arrange a heating and pressurizing machine even if a coating device is not arranged at the site where the film is formed.

Next, the entire flocked fabric on which the film is formed, or at least the plateau to be the back fabric, is allowed to contain water or is heated.
By this operation, the plateau as the backing material shrinks, but the film does not shrink. Further, since the adhesive between the plateau that becomes the backing fabric and the short fibers that are planted in the pattern intervenes in the pattern forming portion of the flocked fabric by the short fibers, the part of the plateau that becomes the backing fabric Shrinkage is somewhat blocked. Due to the shrinkage of the backing plateau, the part of the above film formed on the entire surface of the flocked fabric that covers the part where the short fibers are planted in the pattern is a little direct to the backing plateau that is not. The pasted part is markedly wrinkled.

When this is rubbed, the above phenomenon appears even more prominently.

〔effect〕

The synthetic leather thus produced has remarkable wrinkles on the surface other than the pattern-forming portion formed by the short fibers, and the pattern-formed portion formed by the short fibers is a synthetic leather with a slightly wrinkled surface. To be

Claims (1)

[Claims] 1. An ultrathin synthetic resin film on the entire surface of a flocked fabric in which a platen that is shrunk by giving water or heat is used as a backing, and short fibers are planted on the platen with an adhesive in a desired pattern pattern. By coating with water or heating it, the part of the ultrathin synthetic resin film of the above-mentioned ultra-thin synthetic resin film that covers the short fiber planting surface together with the plateau that is the backing material is slightly, and the other parts are notable. A method for producing synthetic leather, characterized in that the synthetic leather is wrinkled.