A kind of suede artificial superfine fiber synthetic leather and its clean production method

Abstract

The invention relates to suede simulation type superfine fiber synthetic leather and a clean production method thereof. The method comprises the steps of impregnating superfine fiber synthetic leather base cloth through an impregnating tank full of shrinking and kneading liquid, entering a continuous graining machine, drying the superfine fiber synthetic leather base cloth, and obtaining shrinking and kneading base cloth; adopting a flocking production line provided with PUR lattice roller coating equipment, coating PUR on the shrinking and kneading base cloth, sprinkling collagen fiber, adhering on the shrinking and kneading base cloth, cooling and winding, and placing to obtain flocking base cloth; adopting a brushing machine for removing the collagen fiber which is not firmly adhered onto the flocking base cloth, and obtaining the suede simulation type superfine fiber synthetic leather. According to the suede simulation type superfine fiber synthetic leather and the clean production method thereof provided by the invention, a shrinking and kneading technology is adopted, so that the softness, the air permeability and the water vapor permeability of the superfine fiber synthetic leather base cloth are greatly improved; a PUR lattice roller coating composite technology is adopted, so that the collagen fiber is compounded onto the superfine fiber synthetic leather base cloth, and the suede simulation type superfine fiber synthetic leather with the appearance being similar to the appearance of natural suede leather, and the mechanical property and the hygiene property being superior to the mechanical property and the hygiene property of the natural suede leather is obtained.

Description

technical field

[0001] The invention relates to the technical field of superfine fiber synthetic leather, in particular to a suede imitation superfine fiber synthetic leather and a clean production method thereof. Background technique

[0002] Due to the limited resources of raw leather used to produce natural leather, and the production of natural leather is a process of high energy consumption and high pollution, it will bring a huge pollution load to the environment. In recent years, developed countries such as the European Union have also proposed new standards for the safety of natural leather itself, strictly restricting the presence of toxic chemicals such as Cr(VI), azo dyes, pentachlorophenol (PCP) and free formaldehyde in natural leather. . From the perspective of raw leather resources, environmental protection, product safety and market, the production and use of natural leather are facing great challenges.

[0003] For the above reasons, countries all over the ...

Examples

Embodiment 1

[0030] (1) Shrinkage of the base cloth: the superfine fiber synthetic leather base cloth is passed through an impregnation tank equipped with a 30°C shrinkage liquid, and the impregnation amount of the shrinkage liquid is controlled by a roller to be 87% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 60 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed, and the shrinking kneading base cloth is obtained;

[0031] Wherein, the superfine fiber synthetic leather base cloth is island-fixed superfine fiber synthetic leather base cloth.

[0032] The shrinkage liquid is prepared by the following method: in parts by mass, 5 parts of bayberry extract, 1 part of rubber extract, 0.3 part of sodium citrate, 2.5 parts of sulfated castor oil, and 1 part of sulfated fish oil Mix with 70 parts of water, stir until all the materials ...

Embodiment 2

[0036] (1) Shrinkage of the base cloth: the superfine fiber synthetic leather base cloth is passed through the impregnation tank equipped with a 35°C shrinkage liquid, and the impregnation amount of the shrinkage liquid is controlled by a roller to be 90% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 55 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed, and the shrinking kneading base cloth is obtained;

[0037] Wherein, the ultrafine fiber synthetic leather base cloth is non-fixed island type ultrafine fiber synthetic leather base cloth.

[0038] The shrinkage liquid is prepared by the following method: in parts by mass, 8 parts of bayberry extract, 2 parts of rubber extract, 0.2 part of sodium citrate, 3 parts of sulfated castor oil, and 0.5 part of sulfated fish oil and 100 parts of water, and stir until all the...

Embodiment 3

[0042] (1) Shrinkage of the base cloth: pass the superfine fiber synthetic leather base cloth through the dipping tank equipped with a 32°C shrinkage liquid, and control the impregnation amount of the shrinkage liquid by a roll to be 80% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 65 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed to obtain the shrinking kneading base cloth;

[0043] Wherein, the superfine fiber synthetic leather base cloth is a pie-shaped superfine fiber synthetic leather base cloth.

[0044] The shrinkage liquid is prepared by the following method: in parts by mass, 10 parts of bayberry extract, 1.5 parts of rubber extract, 0.1 part of sodium citrate, 2 parts of sulfated castor oil, and 0.6 part of sulfated fish oil and 80 parts of water, and stir until all the materials are dissolved, and th...

technical field

[0001] The invention relates to the technical field of superfine fiber synthetic leather, in particular to a suede imitation superfine fiber synthetic leather and a clean production method thereof. Background technique

[0002] Due to the limited resources of raw leather used to produce natural leather, and the production of natural leather is a process of high energy consumption and high pollution, it will bring a huge pollution load to the environment. In recent years, developed countries such as the European Union have also proposed new standards for the safety of natural leather itself, strictly restricting the presence of toxic chemicals such as Cr(VI), azo dyes, pentachlorophenol (PCP) and free formaldehyde in natural leather. . From the perspective of raw leather resources, environmental protection, product safety and market, the production and use of natural leather are facing great challenges.

[0003] For the above reasons, countries all over the ...

Examples

Embodiment 1

[0030] (1) Shrinkage of the base cloth: the superfine fiber synthetic leather base cloth is passed through an impregnation tank equipped with a 30°C shrinkage liquid, and the impregnation amount of the shrinkage liquid is controlled by a roller to be 87% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 60 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed, and the shrinking kneading base cloth is obtained;

[0031] Wherein, the superfine fiber synthetic leather base cloth is island-fixed superfine fiber synthetic leather base cloth.

[0032] The shrinkage liquid is prepared by the following method: in parts by mass, 5 parts of bayberry extract, 1 part of rubber extract, 0.3 part of sodium citrate, 2.5 parts of sulfated castor oil, and 1 part of sulfated fish oil Mix with 70 parts of water, stir until all the materials ...

Embodiment 2

[0036] (1) Shrinkage of the base cloth: the superfine fiber synthetic leather base cloth is passed through the impregnation tank equipped with a 35°C shrinkage liquid, and the impregnation amount of the shrinkage liquid is controlled by a roller to be 90% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 55 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed, and the shrinking kneading base cloth is obtained;

[0037] Wherein, the ultrafine fiber synthetic leather base cloth is non-fixed island type ultrafine fiber synthetic leather base cloth.

[0038] The shrinkage liquid is prepared by the following method: in parts by mass, 8 parts of bayberry extract, 2 parts of rubber extract, 0.2 part of sodium citrate, 3 parts of sulfated castor oil, and 0.5 part of sulfated fish oil and 100 parts of water, and stir until all the...

Embodiment 3

[0042] (1) Shrinkage of the base cloth: pass the superfine fiber synthetic leather base cloth through the dipping tank equipped with a 32°C shrinkage liquid, and control the impregnation amount of the shrinkage liquid by a roll to be 80% of the quality of the ultrafine fiber synthetic leather base cloth , and then enter the continuous kneading machine, under the condition of 65 ℃, the superfine fiber synthetic leather base cloth is completely dried, and the shrinking kneading process is completed to obtain the shrinking kneading base cloth;

[0043] Wherein, the superfine fiber synthetic leather base cloth is a pie-shaped superfine fiber synthetic leather base cloth.

[0044] The shrinkage liquid is prepared by the following method: in parts by mass, 10 parts of bayberry extract, 1.5 parts of rubber extract, 0.1 part of sodium citrate, 2 parts of sulfated castor oil, and 0.6 part of sulfated fish oil and 80 parts of water, and stir until all the materials are dissolved, and th...