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A preparation process of antibacterial and water-resistant composite leather for automotive trim

A preparation process and a technology for automotive trims, applied in the field of auto parts, can solve the problems of restricting the development and popularization of leather products, reducing the service life, bacterial growth, etc., and achieve the effects of strong penetration, long service life and stable products

Active Publication Date: 2022-04-15
JIANGSU GUOXIN SYNTHETIC LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the leather in the prior art is used for automotive trims, there are still some problems, such as bacterial growth, difficult to take care of, and water deformation, etc., which greatly affect its appearance and reduce its service life, which greatly restricts the The problem of the development and application of leather products, the purpose of this invention is to provide a kind of antibacterial and water-resistant composite leather preparation process for automotive trim

Method used

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  • A preparation process of antibacterial and water-resistant composite leather for automotive trim

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Effect test

Embodiment 1

[0042] A preparation process for an antibacterial and water-resistant composite leather for automotive trim, comprising the following steps:

[0043] Step 1, wash the skin embryo with ethanol and pure water alternately at least twice to remove the stains on the surface, then place it in a drum with 0.3% formic acid solution and rotate it for 0.4h, after draining, add the retanning agent solution Rotate in the drum for 0.4h, after draining water again, add neutralizing solution and rotate in the drum for 0.5h, add neutralizing liquid after draining for the third time and rotate in the drum for 0.5h, after draining for the fourth time, put the skin embryo Put it under the condition of 75~90℃ and dry it until the water content is 30% to obtain the pre-treated product of skin embryo; wherein, the retanning agent solution is obtained by mixing acrylic resin retanning agent and deionized water according to the mass ratio of 2:100 , the neutralizing solution is obtained by mixing the...

Embodiment 2

[0054] A preparation process for an antibacterial and water-resistant composite leather for automotive trim, comprising the following steps:

[0055] Step 1, wash the skin embryo with ethanol and pure water alternately at least twice to remove surface stains, and then place it in a drum with 0.1% formic acid solution and rotate it for 0.5h, after draining, add retanning agent solution Rotate in the drum for 0.5h, after draining water again, add neutralizing solution and rotate in the drum for 0.8h, add neutralizing liquid and rotate in the drum for 0.8h after draining for the third time, after draining for the fourth time, put the skin embryo Put it under the condition of 75~90℃ and dry it until the water content is 25% to obtain the pre-treated skin embryo; wherein, the retanning agent solution is obtained by mixing amino resin retanning agent and deionized water according to the mass ratio of 1:100 , the neutralizing solution is obtained by mixing the neutralizing retanning ...

Embodiment 3

[0066] A preparation process for an antibacterial and water-resistant composite leather for automotive trim, comprising the following steps:

[0067] Step 1, wash the leather embryo with ethanol and pure water alternately at least twice to remove surface stains, and then place it in a drum with 0.5% formic acid solution and rotate it for 0.2h, after draining, add retanning agent solution Rotate in the drum for 0.2h, after draining water again, add neutralizing solution and rotate in the drum for 0.3h, add neutralizing liquid and rotate in the drum for 0.3h after draining for the third time, after draining for the fourth time, put the skin embryo Put it under the condition of 75~90°C and dry it until the water content is 35% to obtain the pre-treated skin embryo; wherein, the retanning agent solution is obtained by mixing acrylic resin retanning agent and deionized water according to the mass ratio of 3:100 , the neutralizing solution is obtained by mixing the neutralizing reta...

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Abstract

The invention discloses a preparation process of an antibacterial and water-resistant composite leather used for automobile trims, which comprises the following steps: step 1, the leather embryo is subjected to surface dust removal and water return, and then retanned, neutralized and dried to obtain leather Embryo pretreatment; step 2, the skin embryo pretreatment is successively subjected to primer coating, first rolling, middle coating, second rolling, top coating, third rolling and softening treatment to obtain antibacterial and water resistant Composite leather. The present invention adopts the self-made water-based polyurethane resin emulsion as the coating solution to prepare antibacterial and water-resistant treatment agent and dye solution respectively according to the needs, and divide it into three times (primer coating, middle coating and top coating) and coat the surface of the leather. The coating liquid has strong penetration and good stability, and the finally prepared leather has the advantages of good antibacterial property, strong mechanical property, good water resistance and long service life.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a preparation process for antibacterial and water-resistant composite leather used for auto trims. Background technique [0002] With the continuous progress of human society, more and more cars have entered people's lives. China has become the world's largest car producer and largest car consumer. As the overall quality gap between different brands of cars narrows, the key to winning the market is no longer the quality of the car, but the craftsmanship of the car interior. People spend most of their time with cars in the car, and the comfort, practicability and design level of car interiors have become key factors in determining car sales. [0003] Since people and cars spend most of their time in the car, the comfort, practicality and design level of car accessories have become important reference indicators for car buyers. Leather products are loved by people because of their softn...

Claims

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Application Information

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IPC IPC(8): C14B1/40C14B1/44C14B1/58C14C3/02C14C3/08C14C15/00C08G18/10C08G18/32C08G18/34C09D5/14C09D175/04C09D7/61C09D7/63D06P1/52D06P3/32
CPCC14C3/02C14C3/08C14C15/00C14B1/58C14B1/44C14B1/40C09D175/04C09D5/14C09D7/61C09D7/63D06P1/5285D06P1/525D06P3/32C08G18/10C08G18/3218C08K2201/011C08K5/42C08K3/30C08G18/3206C08G18/348
Inventor 毛力毛国兵薛建伟
Owner JIANGSU GUOXIN SYNTHETIC LEATHER
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