Chamois initation artificial leather and manufacturing method thereof

Abstract

Provided is sueded artificial leather having good color developing properties and color fastness to light in a wide range of color tones, having a good sueded feel, surface touch, and feeling, and therefore having a sense of high quality. This suedey artificial leather is composed of a three-dimensionally interwoven material formed out of ultrafine fibers having a dtex of <=0.2 and a polymeric elastic material A and satisfies the following requisites (1) to (4): (1) the three-dimensionally interwoven material contains 0-8wt.% of at least one pigment A selected from an organic pigment having an average particle diameter of 0.01-0.3[mu]m and carbon black having an average particle diameter of 0.01-0.3[mu]m, (2) the polymeric elastic material A contains 1-20wt.% of at least one of another pigment selected from another organic pigment having an average particle diameter of 0.05-0.6[mu]m and the other carbon black having an average particle diameter of 0.05-0.6[mu]m, or of pigment particles containing the other organic pigment and having the average particle diameter of 0.05-0.6[mu]m, as a pigment B; (3) the polymeric elastic material A and the three-dimensionally interwoven material are contained in a weight ratio of 15:85 to 60:40; and (4) the ultrafine fibers existing at the surface have raised fluffs of which the average length is 10-200[mu]m.

Description

technical field [0001] The present invention relates to a high-grade suede artificial leather having excellent light fastness and color development in a wide range of color tones, and having a good suede feel, surface touch, and hand feeling, and a half-silver surface obtained by using the suede artificial leather Toned faux leather and silver-finish toned faux leather. Background technique [0002] Suede-like artificial leather made of microfibers and polymer elastomers is known in the prior art. Suede-like artificial leather composed of such microfibers is highly evaluated as a raw material similar to natural leather because of its excellent suede-like feel and surface touch. As a method of coloring such suede artificial leather, a coloring method using a dye has been widely used. [0003] However, because microfibers are thinner than normal denier fibers, the color development is poor. To make microfibers develop color, it is necessary to use several to 20 times more dy...

AI Technical Summary

Problems solved by technology

In this method, relatively good light resistance can be obtained, but the pigment is in a state of being fixed on the surface of the fiber or the polymer elastomer, and is not covered in the fiber or the polymer elastomer, so the pigment is easy to fall off and the rubbing fastness, etc. Tendency to poor fastness

Especially for microfibers below 0.2dtex, a large amount of pigment is required as in the case of dyeing with dyes, so the problem of poor fastness such as rubbing fastness becomes significant

[0011] That is, in the methods of using the pigments disclosed so far, (1) a method of removing one component of microfiber-forming fibers with an organic solvent, which has been carried out as a method for obtaining artificial leather, is carried out, and / or a high-density fiber dissolved in a solvent is carried out. The method of wet coagulation of molecular elastomers in liquids containing organic solvents actually has to use carbon black or inorganic pigments as pigments in the industry, the color tone is limited, and there are problems of poor color development and vividness. For pigments, organic pigments fall off in the process of using organic solvents, and there is a problem of industrial stability and productivity

Furthermore, (2) only one of the fiber and the polymer elastomer contains a pigment, so not only is there a limit to the improvement of light fastness, but there are also problems with rubbing fastness, color range, etc.

In addition, (3) There is almost no contact with the problems existing in the coloring with pigments, that is, the improvement of various fastnesses such as mechanical properties and rubbing fastness due to the addition of pigments, and it is difficult to say that the mechanical properties or Fastness

[0012] That is, the industry has not yet been able to produce a suede artificial leather that is excellent in color development and light fastness in a wide range of hues, and has a suede-like feel, surface touch, feel, and mechanical properties and various fastnesses.