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Cold-resistant finishing agent for synthetic leather

A finishing agent, synthetic leather technology, applied in fiber processing, textiles and papermaking, etc., can solve the problems of low overall performance, not reaching the ideal level, poor low temperature bending resistance, etc., to achieve good visual effect, excellent low temperature resistance and other problems. The effect of tortuous properties

Inactive Publication Date: 2012-05-30
周志昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the previous finishing agents have improved the gloss of synthetic leather to a certain extent, they have not reached the ideal level, and the low temperature bending resistance is poor, and the overall performance is not high.
With the wide application of leather materials, the performance requirements for surface finishing agents such as glossiness and low-temperature bending resistance are also increasing. higher demands

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: A cold-resistant finishing agent for synthetic leather of the present invention, comprising diphenylmethane diisocyanate, pentaerythritol, azobisisobutyronitrile, xylene, dibasic lead phosphite, polymethylphenylsiloxane alkane, dye water, the components and their weight percentages are respectively: 30% diphenylmethane diisocyanate, 34% pentaerythritol, 7% azobisisobutyronitrile, 11% xylene, dibasic phosphorous acid Lead 6%, polymethylphenylsiloxane 7%, dye water 5%.

[0011] The production process of the cold-resistant type finishing agent for synthetic leather, the specific steps are as follows:

[0012] 1. Add 30% diphenylmethane diisocyanate, 34% pentaerythritol, 7% azobisisobutyronitrile, 6% dibasic lead phosphite, 7% polymethylphenylsiloxane, and 5% dye water Heat the reaction kettle to 85°C and stir for 8 hours until the end of the reaction is detected;

[0013] 2. Add 11% xylene to the reaction kettle and stir for another hour;

[0014] 3. Cool ...

Embodiment 2

[0016] The present invention is a cold-resistant finishing agent for synthetic leather, comprising diphenylmethane diisocyanate, pentaerythritol, azobisisobutyronitrile, xylene, dibasic lead phosphite, polymethylphenylsiloxane, dye water , said components and their weight percentages are respectively: 40% diphenylmethane diisocyanate, 28% pentaerythritol, 9% azobisisobutyronitrile, 9% xylene, 5% lead dibasic phosphite, Polymethylphenylsiloxane 3%, dye water 6%.

[0017] The production process of the cold-resistant type finishing agent for synthetic leather, the specific steps are as follows:

[0018] 1. Add 40% diphenylmethane diisocyanate, 28% pentaerythritol, 9% azobisisobutyronitrile, 5% lead dibasic phosphite, 3% polymethylphenylsiloxane, and 6% dye water Heat the reaction kettle to 90°C and stir for 11 hours until the end of the reaction is detected;

[0019] 2. Add 9% xylene to the reaction kettle and stir for 70 minutes;

[0020] 3. Cool to room temperature 25°C.

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PUM

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Abstract

The invention discloses a cold-resistant finishing agent for synthetic leather, comprising 21-40 wt% of methyl diphenylene diisocyanate, 17-34 wt% of pentaerythritol, 6-9 wt% of azodiisobutyronitrile, 7-35 wt% of xylene, 2-8 wt% of dibasic lead phosphate, 3-11 wt% of polymethylphenyl silicone, and 5-7 wt% of dyeing water. Compared with the prior art, the cold-resistant finishing agent for synthetic leather disclosed herein has excellent low temperature flex-resistant performance, and by coating the finishing agent on the leather, high brightness, strong crystal feeling, stereoscopic impression, and good visual effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of leather finishing agents, in particular to a cold-resistant finishing agent for synthetic leather. Background technique [0002] At present, the finishing agent products in the synthetic leather market are widely used in luggage, clothing, and footwear products, and are developing into a popular trend in the future. [0003] Leather finishing agent is a synthetic leather surface treatment material, which is used to beautify the surface of synthetic leather and improve its durability, which can effectively improve the quality and added value of synthetic leather. [0004] Although the previous finishing agents have improved the gloss of synthetic leather to a certain extent, they have not reached the ideal level, and the low temperature bending resistance is poor, and the overall performance is not high. With the wide application of leather materials, the performance requirements for surface finishing age...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06N3/14C08G18/65C08G18/61
Inventor 周志昌
Owner 周志昌
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