A kind of clean production method of tpo modified tpu superfine fiber synthetic leather

An ultra-fine fiber, clean production technology, applied in textiles and papermaking, etc., can solve the problems of high cost and small hardness adjustment range, achieve low cost, wide hardness adjustment range, hydrolysis resistance and good hand feel Effect

Active Publication Date: 2018-12-21
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it can overcome the defects of small softness and hardness adjustment range and high cost of a single TPU resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A clean production method of TPO modified TPU superfine fiber synthetic leather, comprising the following steps:

[0031] (1) With the island-fixed superfine fiber synthetic leather base cloth as the base material, the method of continuous dipping is used to carry out hydrophilic treatment, specifically the technology of continuous dipping, first the base cloth is passed through an aqueous solution of triethanolamine with a mass fraction of 10%, Roll the liquid again to make the liquid content of the base cloth 50%, and dry at 120°C; then, pass through the dispersion of hexamethylene diisocyanate trimer (HDI trimer) with a mass fraction of 5% The HDI trimer is dispersed in water), and the liquid is rolled again so that the liquid content of the base cloth is 50%, and dried at 120°C to obtain a hydrophilic superfine fiber synthetic leather base cloth;

[0032] (2) Using a calendering production line, put the surface layer material into a high-speed kneader and stir for 5...

Embodiment 2

[0036](1) Use the non-island-fixed superfine fiber synthetic leather base cloth as the base material, and carry out hydrophilic treatment by means of continuous dipping. Specifically, the technology of continuous dipping is adopted. First, the base cloth is passed through an aqueous solution of triethanolamine with a mass fraction of 15%. , and then squeeze the liquid to make the liquid content of the base cloth 50%, and dry at 120°C; then, pass through the dispersion of hexamethylene diisocyanate trimer (HDI trimer) with a mass fraction of 10% ( Disperse the HDI trimer in water), then roll the liquid to make the liquid content of the base cloth 50%, and dry at 120°C to obtain a hydrophilic superfine fiber synthetic leather base cloth;

[0037] (2) Using a calendering production line, put the surface layer materials into a high-speed kneader and stir for 10 minutes. When the temperature of the materials reaches 90°C, put them into the internal mixer after discharging, and raise...

Embodiment 3

[0041] (1) With the split-type superfine fiber synthetic leather base cloth as the base material, adopt the mode of continuous dipping to carry out hydrophilic treatment, specifically adopt the technology of continuous dipping, at first the base cloth is passed through the triethanolamine aqueous solution with a mass fraction of 12%, and then Squeeze the liquid to make the liquid content of the base cloth 50%, and dry at 120°C; then, pass through the dispersion of hexamethylene diisocyanate trimer (HDI trimer) with a mass fraction of 8% (HDI trimer) The trimer is dispersed in water), and the liquid is rolled again to make the liquid content of the base cloth 50%, and dried at 120° C. to obtain a hydrophilic superfine fiber synthetic leather base cloth;

[0042] (2) Using a calendering production line, put the surface layer materials into a high-speed kneader and stir for 7 minutes. When the temperature of the materials reaches 95°C, put them into the internal mixer after discha...

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Abstract

The invention relates to a clean production method of TPO modified TPU superfine fiber synthetic leather. The cleaning production method includes: using superfine fiber synthetic leather base cloth as the base material, and using a continuous impregnation manner to perform hydrophilic treatment to obtain hydrophilic superfine fiber synthetic base cloth; using a calendaring production line to add surface-layer materials into a kneading machine, kneading, feeding the kneaded surface-layer materials into an internal mixer, performing internal mixing, feeding the mixed materials into a plasticator, plasticating, feeding the plasticated materials into a calendaring machine, calendaring into a surface-layer thin film, allowing the surface-layer thin film to attach to the hydrophilic superfine fiber synthetic base cloth, and reeling to obtain a semi-finished product; knurling the semi-finished product to obtain the TPO modified TPU superfine fiber synthetic leather. The clean production method has the advantages that no organic solvents are used in the method, so that solvent pollution is avoided; the method is simple to operate and stable in process; the produced TPO modified TPU superfine fiber synthetic leather is excellent in mechanical performance and good in quality.

Description

technical field [0001] The invention relates to a production method of superfine fiber synthetic leather, in particular to a clean production method of TPO modified TPU superfine fiber synthetic leather. Background technique [0002] The main products of the synthetic leather industry include artificial leather, synthetic leather and microfiber synthetic leather. These products are composite materials that simulate the tissue structure and performance of natural leather and can be used as natural leather substitutes. Usually, polyurethane (PU) and polyvinyl chloride (PVC) microporous coatings are mostly used to simulate the grain layer of natural leather, and non-woven or woven fabrics are used as the base material to simulate the mesh layer of natural leather. In the usual classification, those based on woven fabrics are called artificial leather, those based on non-woven fabrics are called synthetic leather, and those based on superfine fiber base cloth are called superfin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/0006D06N3/0009D06N3/0011D06N3/0045D06N3/0059D06N3/143D06N2209/16D06N2211/28
Inventor 马兴元赵昭丁博段月张铭芮刘帅
Owner SHAANXI UNIV OF SCI & TECH
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