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Preparation method of phase changing temperature regulating leather

A technology for leather and temperature adjustment, applied in leather degreasing, leather impregnation, leather surface treatment, etc., can solve the problems of unsatisfactory comfort and poor air permeability, and achieve the effect of improving water absorption and air permeability

Active Publication Date: 2018-11-20
黄方盾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the leather shoes that people wear are made of leather and outsoles, and the part that is in direct contact with the feet is leather. Natural leather has good water absorption and air permeability, but people add coatings to the leather surface to make it more beautiful. Materials, resins, waxes and other chemicals have poor air permeability, creating a high-temperature and high-humidity environment inside the shoe, making it difficult to meet people's needs for comfort

Method used

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Examples

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Effect test

preparation example Construction

[0026] The invention provides a method for preparing temperature-adjusted leather in disguised form, comprising the following steps:

[0027] (1) After degreasing and neutralizing the wet blue leather successively, a neutral base material is obtained;

[0028] (2) The neutral base material, water and the first dyeing pretreatment agent obtained in the step (1) are rotated and mixed in a drum to obtain the first modified leather material; the first dyeing pretreatment agent includes Quaint extract, wattle bark extract and leveling agent;

[0029] (3) The first modified leather obtained in the step (2), water and the second dyeing pretreatment agent are rotated and mixed in a drum and then left to stand to obtain the second modified leather; Two pre-dyeing agents include quebracho extract and wattle bark extract;

[0030] (4) The second modified leather material obtained in the step (3) is sequentially subjected to dyeing treatment, fatliquoring softening and acid-fixing treat...

Embodiment 1

[0054] Weighing: Weigh the raw material wet blue hide, and take the weight of the wet blue hide as 100wt.%. The mass involved in the subsequent steps is based on this.

[0055] Degreasing: Put the wet blue hide into the drum, add 40°C water, degreasing agent and formic acid, rotate for 60 minutes, and then wash with water to remove the residual formic acid and degreasing agent on the surface of the wet blue hide; Liquid removal; Wherein, the wet blue leather mass taken by weighing is 100wt.%, the addition of water is 200wt.%, the addition of degreasing agent is 0.5wt.%, and the addition of formic acid is 0.2wt.%.

[0056] Neutralization: At room temperature, add 100wt.% of water at 35°C to the drum that retains the degreased wet blue hide, then add 1wt.% of baking soda and rotate for 10 minutes, then add 3wt.% Polyacrylic acid with a molecular weight of 5000 is rotated for 90 minutes; then 2% baking soda and 3% ammonium bicarbonate are added to continue rotating for 90 minutes...

Embodiment 2

[0064] The temperature-modified leather in disguised form was prepared according to the method of Example 1, with the difference that, during the temperature-modified modification process, the mass of the added higher aliphatic hydrocarbon was 6 wt.%, and the mass of the cross-linking agent was 6 wt.%.

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Abstract

The invention provides a preparation method of phase changing temperature regulating leather. According to the preparation method, through solid wood extract and wattle bark extract step-by-step modification before dyeing treatment, the water absorption gas permeability of leather fibers is improved; in cooperation with the effects of higher aliphatic hydrocarbon and a crosslinking agent which areadded after acid solidifying, the higher aliphatic hydrocarbon is absorbed into the leather fibers, the crosslinking agent has the effect of crosslinking the leather fibers and the higher aliphatic hydrocarbon, the higher aliphatic hydrocarbon absorbed into the leather fibers can generate the process of mutual conversion between the liquid state and the solid state under the phase changing temperature, the thermal creep exchange principle is used, temperature regulation and control are achieved, the temperature around the leather can be stabilized to the liquid-solid conversion temperature, the leather has the heat absorbing and heat release function, temperature regulating modification of the leather is achieved, and the leather allows the temperature inside a leather shoe to be stabilized to 25 DEG C-31 DEG C.

Description

technical field [0001] The invention relates to the technical field of leather material preparation, in particular to a method for preparing temperature-adjusted leather in disguised form. Background technique [0002] With the change of people's lifestyle and the improvement of living standards, there are more and more requirements for functional shoes and boots in different environments, and the requirements for comfort are almost harsh. [0003] However, the leather shoes that people wear are made of leather and outsoles, and the part that is in direct contact with the feet is leather. Natural leather has good water absorption and air permeability, but people add coatings to the leather surface to make it more beautiful. Materials, resins, waxes and other chemicals have poor air permeability, creating a high-temperature and high-humidity environment inside the shoe, making it difficult to meet people's needs for comfort. Contents of the invention [0004] In view of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C5/00C14C9/02C14C11/00
CPCC14C5/00C14C9/02C14C11/00
Inventor 黄方盾
Owner 黄方盾
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