Unlock instant, AI-driven research and patent intelligence for your innovation.

Water-based artificial leather with high surface adhesion degree and strong migration resistance and preparation method of water-based artificial leather

An anti-migration and adhesion technology, applied in textiles and papermaking, etc., can solve the problems of generating a large amount of waste, refractory waste, environmental pollution, etc., reducing the emission of toxic waste, high surface adhesion, and strong migration resistance. Effect

Pending Publication Date: 2022-04-01
WUXI MANYOULI NEW COMPOSITE MATERIALS
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the artificial leather produced in the market uses synthetic polymer materials as raw materials and uses a large amount of organic solvents. During the production process, a large amount of waste will be generated and toxic gases and waste water will be discharged, which will seriously pollute the environment.
At the same time, the generated waste is difficult to degrade in the natural environment for a long time, which is also a potential hidden danger to the environment

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 artificial leather with high surface adhesion degree and strong migration resistance and preparation method of water-based artificial leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for preparing a water-based artificial leather with high surface adhesion and strong migration resistance, comprising the following steps:

[0020] Step 1: In parts by mass, add 55 parts of polyester polyol (synthesized from adipic acid and ethylene glycol) into the solvent, mix and stir evenly;

[0021] Step 2: Add 50 parts of isocyanate prepolymer, 0.3 parts of catalyst, 20 parts of chitosan, 1 part of chain extender, and 1 part of ethylene glycol to the mixture obtained in step 1, heat up to 45 °C and stir to react to obtain polyester Adhesive layer paste;

[0022] Step 3: Mix and stir 60 parts of water-based polyurethane resin, 20 parts of water-based acrylic resin, 0.5 part of thickener, 0.5 part of lubricant, and 0.5 part of stabilizer evenly to obtain a water-based polyurethane layer slurry;

[0023] Step 4: apply the water-based polyurethane layer slurry obtained in step 3 on the surface of the release paper, and dry;

[0024] Step 5: Apply the polyes...

Embodiment 2

[0026] A method for preparing a water-based artificial leather with high surface adhesion and strong migration resistance, comprising the following steps:

[0027] Step 1: In parts by mass, 45 parts of polyester polyol (synthesized from adipic acid and propylene glycol) are added to the solvent, mixed and stirred evenly;

[0028] Step 2: Add 30 parts of isocyanate prepolymer, 0.3 part of catalyst, 15 parts of chitosan, 0.5 part of chain extender, and 0.5 part of ethylene glycol to the mixture obtained in step 1, heat up to 40°C and stir to react to obtain polyester Adhesive layer paste;

[0029] Step 3: Mix and stir 50 parts of water-based polyurethane resin, 30 parts of water-based acrylic resin, 0.5 part of thickener, 0.5 part of lubricant, and 0.4 part of stabilizer evenly to obtain a water-based polyurethane layer slurry;

[0030] Step 4: apply the water-based polyurethane layer slurry obtained in step 3 on the surface of the release paper, and dry;

[0031] Step 5: Appl...

Embodiment 3

[0033] A method for preparing a water-based artificial leather with high surface adhesion and strong migration resistance, comprising the following steps:

[0034] Step 1: In parts by mass, add 35 parts of polyester polyol (synthesized from adipic acid and ethylene glycol) into the solvent, mix and stir evenly;

[0035] Step 2: Add 35 parts of isocyanate prepolymer, 0.1 part of catalyst, 25 parts of chitosan, 2 parts of chain extender, and 2 parts of ethylene glycol to the mixture obtained in step 1, heat up to 45°C and stir to react to obtain polyester Adhesive layer paste;

[0036] Step 3: Mix and stir 30 parts of water-based polyurethane resin, 20 parts of water-based acrylic resin, 0.5 part of thickener, 0.5 part of lubricant, and 0.2 part of stabilizer to obtain a water-based polyurethane layer slurry;

[0037] Step 4: apply the water-based polyurethane layer slurry obtained in step 3 on the surface of the release paper, and dry;

[0038] Step 5: Apply the polyester adh...

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 discloses water-based artificial leather with high surface adhesion and strong migration resistance and a preparation method thereof, and belongs to the field of artificial leather synthesis, the artificial leather sequentially comprises a base fabric, a polyester bonding layer and a water-based polyurethane resin layer from bottom to top; the water-based polyurethane resin layer is adopted, use of organic solvents is reduced, emission of toxic waste is reduced, the polyester bonding layer is used between the base cloth and the water-based polyurethane resin layer, the bonding degree of the base cloth and the water-based polyurethane resin layer is increased, the reaction time between the bonding layer and the resin layer is effectively shortened through chitosan, and the service life of the base cloth and the water-based polyurethane resin layer is prolonged. The bonding strength and the volume density of the product are improved, meanwhile, the prepared product is more environment-friendly, and the organic volatile matter concentration of the product is obviously lower than that of similar products in an organic volatile matter test; and the artificial leather provided by the invention is high in surface adhesion degree and strong in migration resistance.

Description

technical field [0001] The invention belongs to the field of artificial leather synthesis, in particular to a water-based artificial leather with high surface adhesion and strong migration resistance and a preparation method thereof. Background technique [0002] In the early days of leather application, the materials used to make leather were all taken from animal skins, but at present, the resources of animal skins are scarce, difficult to produce on a large scale, and expensive, so they cannot be generally owned by the general consumer. With the progress of the times , the demand for leather goods is not limited to genuine leather. Various imitation products can already replace some genuine leather products. Since the interview of artificial leather products, products with various textures and specifications have appeared on the market, and their functions have also shown diversified development. [0003] With the improvement of people's living standards, the attention ...

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 Applications(China)
IPC IPC(8): D06N3/14D06N3/12D06N3/18D06N3/00
Inventor 宗政宇蒋泽
Owner WUXI MANYOULI NEW COMPOSITE MATERIALS