A kind of water-based polyurethane imitation superfiber and manufacturing method thereof

A technology of water-based polyurethane and a manufacturing method, which is applied in the field of imitation microfiber, can solve the problems of difficult to control hand feeling, high recovery cost, low production efficiency and the like of water-based dry imitation microfiber, so as to solve the problems of difficult to control hand feeling, high production efficiency and three-dimensional strong effect

Active Publication Date: 2020-09-29
HEFEI KETIAN WATERBORNE TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a water-based polyurethane imitation microfiber and its manufacturing method, which is used to solve the solvent residue and high recovery cost of the solvent-based wet imitation superfiber in the prior art. It is difficult to control the hand feel of water-based dry imitation microfiber, and the production efficiency is low and the cost is high.

Method used

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  • A kind of water-based polyurethane imitation superfiber and manufacturing method thereof
  • A kind of water-based polyurethane imitation superfiber and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of manufacture method of waterborne polyurethane imitation superfiber, comprises the following steps:

[0020] 1. Ingredients:

[0021] (1) Impregnated resin

[0022] 10 kg of water-based polyurethane KTL770 (Hefei Ketian Water-based Technology Co., Ltd., aliphatic resin) with a solid content of 30% was added to 10 kg of tap water, and water-based thickener 3220 (Shenzhen Haichuan Chemical Industry Co., Ltd.) was added, stirred evenly at high speed, and the viscosity was adjusted to 3500cps, pH 7.

[0023] (2) Preparation of coagulation solution

[0024] Mix and stir 10kg of phosphoric acid and 40kg of tap water to completely dissolve the phosphoric acid in the water.

[0025] 2. Preparation of water-based polyurethane imitation superfiber:

[0026] (1) Impregnation treatment: Place the double-sided fluff woven fabric in an impregnation tank filled with water-based polyurethane impregnation resin for impregnation treatment, and then squeeze out the excess imp...

Embodiment 2

[0031] A kind of manufacture method of waterborne polyurethane imitation superfiber, comprises the following steps:

[0032] 1. Ingredients:

[0033] (1) Impregnated resin

[0034] Add 12 kg of water-based polyurethane KTL775 (Hefei Ketian Water-based Technology Co., Ltd., aromatic resin) with a solid content of 30% to 8 kg of tap water, add the water-based thickener RHEOLATE208, stir evenly at high speed, adjust the viscosity to 2500cps, and the pH value 6.

[0035] (2) Preparation of coagulation solution

[0036] Mix and stir 20kg of calcium chloride and 80kg of tap water to completely dissolve the calcium chloride in the water.

[0037] 2. Preparation of water-based polyurethane imitation superfiber:

[0038] (1) Impregnation treatment: Place the double-sided fluff woven fabric in an impregnation tank filled with water-based polyurethane impregnation resin for impregnation treatment, and then squeeze out the excess impregnation resin through the pressing roller, so that...

Embodiment 3

[0043] A kind of manufacture method of waterborne polyurethane imitation superfiber, comprises the following steps:

[0044] 1. Ingredients:

[0045] (1) Impregnated resin

[0046] Add 30kg of water-based polyurethane KTL776 (Hefei Ketian Water-based Technology Co., Ltd., aromatic resin) with a solid content of 30% to 5kg of tap water, add water-based thickener 3220 (Shenzhen Haichuan Chemical Industry), stir evenly at high speed, and adjust the viscosity to 1500cps, pH 8.

[0047] (2) Preparation of coagulation solution

[0048] Mix and stir 3kg lactic acid, 6kg citric acid and 91kg tap water to completely dissolve phosphoric acid in the water.

[0049] 2. Preparation of water-based polyurethane imitation superfiber:

[0050](1) Impregnation treatment: Place the double-sided fluff woven fabric in an impregnation tank filled with water-based polyurethane impregnation resin for impregnation treatment, and then squeeze out the excess impregnation resin through the pressing r...

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Abstract

The invention provides a waterborne polyurethane imitation microfiber and a production method thereof. The production method comprises the following steps: (1) carrying out impregnation treatment of base cloth by putting the base cloth in waterborne polyurethane impregnation resin for impregnation treatment; (2) carrying out coagulation by putting the base cloth in coagulation liquid for coagulation treatment; (3) washing with water, drying and shaping; and (4) grinding surface by carrying out surface grinding treatment to obtain the waterborne polyurethane imitation microfiber. Through the production method, waterborne polyurethane resin slurry is adopted, so that no organic solvent is added in the processes of producing and using the imitation microfiber; the problem of solvent residue pollution of solvent type wet-process imitation microfiber in the prior art is solved; the clean production is achieved; the produced waterborne polyurethane imitation microfiber is fine and compact in structure, high in tearing strength, flexible in hand feeling, bright in metallic gloss, high in brightness and strong in stereoscopic sensation; the problems of difficult control of hand feeling, low production efficiency and high cost of waterborne dry-process imitation microfiber can be solved.

Description

technical field [0001] The invention relates to the technical field of imitation superfiber, in particular to a water-based polyurethane imitation superfiber and a manufacturing method thereof. Background technique [0002] At present, synthetic leather has been applied in various fields in people's life, and there are various varieties. Imitation microfiber is a product developed in the synthetic leather industry in recent years. It has the advantages of light weight, tear resistance, heat resistance, toughness, good cold resistance, and high tensile strength. At present, imitation microfiber is still manufactured by solvent-based polyurethane wet method and water-based polyurethane dry method. The wet process replaces DMF (dimethylformamide) in solvent-based polyurethane with water, so that the coating has continuous pores, so that Reach a certain thickness to increase the three-dimensional effect. However, a large amount of DMF is used in the coating slurry, and the sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0006D06N3/0061D06N3/0063D06N3/0077D06N3/14
Inventor 王刚李维虎戴家兵赵曦董永红赵春娥
Owner HEFEI KETIAN WATERBORNE TECH CO LTD
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