Genuine leather product

A technology for genuine leather and products, applied in leather surface treatment, small raw leather/big raw leather/leather/fur treatment, leather/skin/leather/raw hide chemical treatment equipment, etc., which can solve the problems of damaged leather texture and touch

Inactive Publication Date: 2020-08-11
SEIREN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the texture unique to genuine leather, especially the feel and touch, is impaired due to the use of a hard resin to form the coating.

Method used

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  • Genuine leather product
  • Genuine leather product
  • Genuine leather product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] (1) Preparation of leather substrate

[0109] Using adult cowhide as the raw hide, the leather is obtained through normal processes such as chrome tanning, followed by veneer drying. In addition, dyeing|staining was performed so that it may become the same color as the undercoat layer mentioned later.

[0110] (2) Formation of undercoat

[0111] [Recipe A1]

[0112]

[0113] Preparation

[0114] According to formula A1, mix each raw material with a mixer. The viscosity was 12 seconds (cup viscometer, viscosity cup NK-2, manufactured by Anest Iwata Co., Ltd.).

[0115] With the resin composition for undercoat prepared according to above-mentioned formula A1, be 80g / m with the wet coating amount with spraying machine (trade name " TUROT.3400 / 1.41 ", BARNINI Srl make) 2 The method is coated on the surface of the leather substrate prepared according to the above (1), and treated with a dryer at 110° C. for 3 minutes to form a primer layer. The undercoat layer has...

Embodiment 2

[0126] Except not performing the formation of the undercoat layer of said (2), it carried out similarly to Example 1, and obtained the genuine leather product of Example 2. The thickness of the finishing layer was 7 μm. In the resulting leather product, although uneven color of the finishing layer was confirmed, pores and texture patterns were confirmed, and the appearance was good. In addition, MIU was 0.21, MIU / MMD was 26.6, and SMD×MMD was 0.0145, showing excellent touch and feel. In addition, the test piece after the abrasion test was excellent in abrasion resistance although a few cracks occurred in the finish layer and the grain surface (surface of the nipple layer).

Embodiment 3

[0128] The leather product of Example 3 was obtained in the same manner as in Example 1 except that the outermost layer of the above (4) was set to the following formulation B2. The thickness of the finishing layer is 8 μm. Pores and texture patterns were confirmed in the obtained genuine leather product, and the appearance was good. In addition, MIU was 0.21, MIU / MMD was 37.0, and SMD×MMD was 0.0117, and the texture was excellent, and the texture was excellent although a coating film feeling was felt. Furthermore, the appearance of the test piece after the abrasion test did not change, and the abrasion resistance was excellent.

[0129] [Recipe B2]

[0130]

[0131]

[0132] Preparation

[0133] According to formula B2, after mixing all raw materials except the isocyanate-based crosslinking agent with a mixer, add the isocyanate-based crosslinking agent and mix with a mixer. At this time, the viscosity was 12 seconds (cup viscometer, viscosity cup NK-2, manufactur...

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Abstract

The present invention is a genuine leather product. Provided is a genuine leather product having a tactile sensation, texture, and wear resistance that are unique to genuine leather. The genuine leather product is provided with a genuine leather base material and a finishing layer laminated on the genuine leather base material, wherein the finishing layer is provided with an outermost layer formedfrom a composition containing an acrylic resin and / or a urethane resin, a silicone rubber, and a crosslinking agent, and the average coefficient of friction (MIU) of the front surface of the genuineleather product is in the range of 0.12-0.30.

Description

technical field [0001] The present invention relates to genuine leather articles. Background technique [0002] Leather products are used for clothing, bags, shoes, interior materials, and vehicles due to their unique texture and luxury such as appearance (gloss, texture, etc.), feel, and touch (softness, elasticity, swelling, smoothness, etc.) Various fields such as interior materials. [0003] There are various methods of finishing the surface of genuine leather due to the use of raw leather and leather products. In addition to suede, nubuck and other suede leather and unfinished leather, the surface of the genuine leather substrate is usually finished by painting. The coating is repeated several times to form a coating film (resin film) on the leather. [0004] There is a real leather product called unfinished leather, which is processed without a resin coating (hereinafter sometimes referred to as "finish layer") after tanning the real leather base, that is, while ret...

Claims

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Application Information

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IPC IPC(8): C14C1/04C14C1/06C14C1/08C14C3/00C14C11/00C14C15/00
CPCC14C1/04C14C1/06C14C1/08C14C3/00C14C11/003C14C15/00
Inventor 松田兴吉
Owner SEIREN CO LTD
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