Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Environmental protection artificial leather and its manufacturing method

A technology of artificial leather and manufacturing method, applied in textiles and papermaking, etc., can solve problems such as pollution of the environment by organic solvents

Active Publication Date: 2007-03-07
SAN FANG CHEM IND
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, although the process of the surface bonding layer of the aforementioned artificial leather has an environmental protection effect, a large amount of organic solvents are still used to pollute the environment when manufacturing the artificial leather wet semi-finished product of the inner layer

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
  • Environmental protection artificial leather and its manufacturing method
  • Environmental protection artificial leather and its manufacturing method
  • Environmental protection artificial leather and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] A solvent-free polyurethane resin coating with a polyurethane resin solid content of 50% by weight is coated on a release paper, wherein the viscosity of the resin coating is controlled at 1300cps / 30°C. This water-soluble polyurethane resin paint was dried in an oven at 120° C. to form one surface layer.

[0035] Apply a layer of high-solid polyurethane resin coating on the dried surface layer, wherein the coating contains polyurethane resin with a solid content of 98% and additives (interface agent, hardener and colorant, etc.) mixed in a 5:1 manner, And its viscosity is controlled at 25000cps / 30℃. The high-solid polyurethane resin coating was dried and hardened in an oven at 160° C. to form an intermediate layer.

[0036] A layer of solvent-free polyurethane resin coating added with water-based bridging agent is coated on the hardened intermediate layer to form an adhesive layer. Then use an oven to dry the solvent-free polyurethane resin coating of the adhesive lay...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The green artificial leather includes one base material layer, one adhering layer, one intermediate layer and one facing layer. The green artificial leather features the facing layer and the adhering layer formed with no-solvent elastomer resin, and the intermediate layer between the base material layer and the special grain layer formed with polyurethane resin composition with solid content over 50 wt%. The production process of the green artificial leather includes the following main steps: painting the first no-solvent elastomer resin composition on release paper to form the first facing layer; painting polyurethane resin composition with solid content over 50 wt% on the first facing layer to form the intermediate layer, painting the second no-solvent elastomer resin composition on the intermediate layer to form the adhering layer, and final adhering base cloth onto the adhering layer and tearing off the release paper.

Description

technical field [0001] The invention relates to a method for manufacturing an environmentally friendly artificial leather product and the obtained environmentally friendly artificial leather product, in particular to an environmentally friendly artificial leather product and a manufacturing method thereof. Background technique [0002] The manufacturing method of leather-like artificial leather in the prior art, as shown in FIG. 1 , includes two main processes, one is a dry process 100 and the other is a wet process 101 . The dry process 100 includes two main steps 102 and 104. First, a layer of dry polyurethane resin composition is coated on the release paper to form a dry polyurethane resin layer 102 with a thickness of about 0.02 mm to 0.03 mm. The dry polyurethane resin layer is coated with an adhesive polyurethane resin composition with a thickness of about 0.04mm-0.05mm to form an adhesive layer 104 . The wet process 101 includes four main steps 106-114. First, a base...

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
Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00
Inventor 王敬堂林孟经冯崇智黄培火林永松
Owner SAN FANG CHEM IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com