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Leather for leather bag and finishing method thereof

A kind of leather and leather bag technology, which is used in the field of natural leather, can solve problems such as the less waterproofing effect, and achieve the effect of reducing the surface tension of the leather, improving the dispersal uniformity, moisture, and good permeability.

Active Publication Date: 2020-06-16
杭州天龙手袋股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the preparation method and application method of this dermis care waterproof film-forming agent are also disclosed; the dermis care waterproof film-former can form a layer of waterproof and anti-fouling protective film on the surface of all dermis, and achieve hydrophobic effect while protecting the dermis , but the waterproof effect brought by this direct spraying method is not durable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Configure functional finishing solution, which includes the following components: 4 parts of fluoropolymer ATLASOL WRF, 1 part of amino silicone oil, 3 parts of collagen fiber, 1.5 parts of sodium alginate, chlorinated metal ion salt crosslinking agent 0.25 parts of calcium, 0.2 parts of silicone coupling agent 550, 0.2 parts of matting agent titanium dioxide, 0.5 parts of surfactant, 30 parts of water;

[0047] Weigh the above components by weight, first add the surfactant into the water, stir evenly, then slowly add the matting agent and silicone coupling agent 550, and keep stirring, then add sodium alginate, fluoropolymer, Amino silicone oil, collagen fibers, and finally add metal ion salt crosslinking agent, control the stirring speed to 200r / min, and stir evenly;

[0048] (2) Surface finishing of the tanned leather by means of dipping. The finishing method is dipping at room temperature, immersing the cowhide in the above finishing solution for 30 minutes to ...

Embodiment 2

[0053] (1) Configure functional finishing solution, which includes the following components: 5 parts of fluoropolymer ATLASOL WRF, 1.5 parts of amino silicone oil, 3.5 parts of collagen fiber, 2 parts of sodium alginate, chlorinated metal ion salt crosslinking agent 0.5 parts of copper, 0.4 parts of silicone coupling agent 560, 1 part of matting agent silicon dioxide, 1 part of surfactant, 36 parts of water;

[0054] Weigh the above components by weight, first add the surfactant into the water, stir evenly, then slowly add the matting agent and silicone coupling agent 560, then add sodium alginate, fluoropolymer, amino silicone oil, collagen Fiber, finally add the metal ion salt crosslinking agent, control the stirring speed to 300r / min, and stir evenly;

[0055] (2) Surface finishing of the tanned leather by means of dipping, immersing the cowhide in the above finishing solution for 40 minutes to ensure that the finishing solution fully penetrates into the cowhide, then take ...

Embodiment 3

[0060] Steps (1) and (2) are the same as in Example 2;

[0061] (3) Carry out low-temperature setting finishing in an oven, the temperature of low-temperature setting finishing is 60 degrees Celsius, and the finishing time is 40 minutes; the cowhide after finishing can be obtained.

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PUM

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Abstract

The invention relates to the field of natural leather, and provides leather for a leather bag and a finishing method thereof. The method comprises the following steps: (1) carrying out surface finishing on tanned and finished leather; (2) carrying out low-temperature shaping finishing on the leather subjected to surface finishing in the step (1); wherein the surface finishing in the step (1) is tofinish tanned and finished leather by adopting a functional finishing solution, and the functional finishing solution comprises the following components: a fluorine-containing polymer, amino siliconoil, collagen fibers, sodium alginate, a metal ion salt cross-linking agent, an organosilicon coupling agent, a delustering agent, a surfactant and water. The genuine leather obtained through the method is soft and excellent in waterproof performance, and the finishing method does not cause reduction of the mechanical performance and the air permeability of the leather.

Description

technical field [0001] The present application relates to the field of natural leather, in particular to a method for surface finishing tanned leather and the prepared leather. Background technique [0002] Natural leather (genuine leather) is composed of fine protein fibers. It feels flexible and has good moisture absorption and air permeability. It is mainly used in fabrics such as high-end clothing, shoes and bags. [0003] At present, based on the control of production costs, most of the synthetic leather on the market is treated with imitation leather to obtain the feel and appearance of real leather. For example, CN 105755845 A discloses that the raw material components include 70% to 80% of leather fibers, 10% to 20% of inorganic fibers and 10% to 20% of viscose fibers with a skin-core structure by mass percentage. The regenerated leather is obtained after opening, netting and laying, stabbing, heat treatment, cutting, and water repellent treatment, and the bare cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C11/00
CPCC14C11/003
Inventor 方华锋孙军英汪金国汪俊凯徐素珍
Owner 杭州天龙手袋股份有限公司
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