Water-based dry method foaming raincoat leather and preparation method thereof

A technology of raincoat leather and dry method, which is applied in the direction of textiles and papermaking, can solve the problems of strength and water pressure resistance, damage to human health by plasticizers, and damage to human health, etc., to improve water resistance, strong water pressure resistance, The effect of high environmental standards

Inactive Publication Date: 2016-10-12
HEFEI KETIAN WATERBORNE TECH CO LTD +2
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the weather resistance of PVC calendered raincoat leather is poor, and it is cumbersome to wear, and the plasticizer (DOP-dioctyl phthalate) in PVC calendered raincoat leather will slowly volatilize over time, resulting in poor strength and water pressure resistance. decline, and plasticizers can cause damage to human health
The advantage of solvent-based PU dry-process raincoat leather is that the product pr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-based dry method foaming raincoat leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] (1) Preparation of slurry for surface layer, middle layer, foam layer and bottom layer:

[0047] (1) Preparation of surface layer slurry:

[0048] Take 100kg of water-based polyurethane resin KTT628F (produced by Hefei Ketian Chemical Co., Ltd.), 6kg of water-based colorant, 0.8kg of RHEOLATE208 water-based thickener, 0.6kg of TEGO902W defoamer and 0.6kg of BD-3376 leveling agent Add them to the mixer one by one, seal and vacuum, and then stir until the slurry is evenly dispersed.

[0049] (2) Preparation of middle layer slurry:

[0050] Take 100kg of water-based polyurethane resin KTM797 (produced by Hefei Ketian Chemical Co., Ltd.), 4kg of water-based color paste, 1kg of RHEOLATE208 water-based thickener, 0.5kg of TEGO902W defoamer, and 0.5kg of BD-3376 leveling agent. Add to the mixer, seal and vacuum, and then stir until the slurry is evenly dispersed.

[0051] (3) Preparation of foam layer slurry:

[0052] Take 400kg of water-based polyurethane resin KTG60...

Example Embodiment

[0061] Example 2

[0062] (1) Preparation of slurry for surface layer, middle layer, foam layer and bottom layer:

[0063] (1) Preparation of surface layer slurry:

[0064] Take 100kg of water-based polyurethane resin KTT628F (produced by Hefei Ketian Chemical Co., Ltd.), 8kg of water-based colorant, 1.2kg of RHEOLATE208 water-based thickener, 0.8kg of TEGO902W defoamer and 1.0kg of BD-3376 leveling agent Add them to the mixer one by one, seal and vacuum, and then stir until the slurry is evenly dispersed.

[0065] (2) Preparation of middle layer slurry:

[0066] Take 100kg of water-based polyurethane resin KTM797 (produced by Hefei Ketian Chemical Co., Ltd.), 6kg of water-based color paste, 0.6kg of RHEOLATE208 water-based thickener, 0.9kg of TEGO902W defoamer and 0.9kg of BD-3376 leveling agent Add them to the mixer one by one, seal and vacuum, and stir until the slurry is evenly dispersed.

[0067] (3) Preparation of foam layer slurry:

[0068] Take 400kg of water-based polyurethane ...

Example Embodiment

[0077] Example 3

[0078] (1) Preparation of slurry for surface layer, middle layer, foam layer and bottom layer:

[0079] (1) Preparation of surface layer slurry:

[0080] Take 100kg of water-based polyurethane resin KTT628F (produced by Hefei Ketian Chemical Co., Ltd.), 10kg of water-based colorant, 1.2kg of RHEOLATE208 water-based thickener, 1.5kg of TEGO902W defoamer and 1.3kg of BD-3376 leveling agent Add them to the mixer one by one, seal and vacuum, and then stir until the slurry is evenly dispersed.

[0081] (2) Preparation of middle layer slurry:

[0082] Take 100kg of water-based polyurethane resin KTM797 (produced by Hefei Ketian Chemical Co., Ltd.), 8kg of water-based color paste, 1.5kg of RHEOLATE208 water-based thickener, 1.2kg of TEGO902W defoamer and 1.2kg of BD-3376 leveling agent Add them to the mixer one by one, seal and vacuum, and stir until the slurry is evenly dispersed.

[0083] (3) Preparation of foam layer slurry:

[0084] Take 400kg of water-based polyurethane...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides water-based dry method foaming raincoat leather and a preparation method thereof. A water-based thickening agent, a defoaming agent, a flatting agent and other preparations are added into waterborne polyurethane resin, slurry on the surface layer, the middle layer, and the foaming layer and the bottom layer of waterborne polyurethane resin slurry is prepared through mixing and vacuum defoaming; through a dry method film moving processing method, release paper is firstly coated with the surface layer, the surface layer is coated with the middle layer after being dried and cooled, the middle layer is coated with the foaming layer after being dried and cooled, and the foaming layer is coated with the bottom layer after being dried and cooled; after low-temperature drying, base cloth is attached at high temperature, drying, curing and cooling are carried out, the release paper is stripped, split rolling and surface aftertreatment are carried out, and the water-based dry method foaming raincoat is obtained. The obtained water-based dry method foaming raincoat has good washing and water pressure resistance, and the water pressure resistance is still 10,000 MPa or above after washing; the water-based dry method foaming raincoat leather is soft in hand feeling, resistant to wrinkles, high in real leather sense, good in breathability and high in washing and water pressure resistance and completely meets the needs of the market for raincoat leather.

Description

technical field [0001] The invention relates to the technical field of leather, and specifically discloses a water-based dry-process foamed raincoat leather and a preparation method thereof. Background technique [0002] Raincoat leather has a good handle and is widely used in clothing outerwear. With the change of the market and the improvement of consumers' taste, the grade requirements for raincoat leather are getting higher and higher. The quality of traditional raincoat leather can no longer meet the needs of consumers. It is an inevitable direction to develop high-grade raincoat leather. [0003] The raincoat leather circulating on the market includes PVC calendered leather and solvent-based PU dry-laid raincoat leather. The advantages of PVC calendered raincoat leather are low cost, simple production process and thick handle. However, the weather resistance of PVC calendered raincoat leather is poor, and it is cumbersome to wear, and the plasticizer (DOP-dioctyl pht...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0034D06N3/005D06N3/0059D06N3/0077D06N3/0097D06N3/145D06N2209/123D06N2211/10D06N2211/28
Inventor 张经纬王刚董永红李维虎赵曦戴家兵
Owner HEFEI KETIAN WATERBORNE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap