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Gas-permeable moisture-absorption type environmentally-friendly polyvinyl chloride synthetic leather and manufacturing method thereof

A polyvinyl chloride and synthetic leather technology, applied in chemical instruments and methods, synthetic resin layered products, textiles and papermaking, etc., can solve problems such as difficulty in passing environmental protection tests, poor vapor permeability and moisture absorption, and residues, and achieve excellent moisture absorption. and moisture conductivity, resistance to plasticizer migration, high bond fastness

Inactive Publication Date: 2012-06-20
HEFEI ANSHAN COATING FABRICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of DMF solvent with certain toxicity and volatility is used in its manufacturing process. Even after sufficient drying, there will be a large amount of DMF residue, which will become a source of excessive VOC pollution in indoor air; at the same time, polyurethane synthetic leather is resistant to hydrolysis, Insufficient weather resistance and other issues limit its further wide application
Polyvinyl chloride synthetic leather has the advantages of excellent hydrolysis resistance, wear resistance, scratch resistance, and flame retardancy. However, due to its poor vapor permeability and moisture absorption, it is difficult to pass environmental protection tests and other shortcomings, which affect the further expansion and application of its market. The dispensing and processing techniques are fully optimized and improved

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Preparation of surface layer, foam layer and adhesive layer slurry:

[0037] Preparation of surface layer, foam layer and adhesive layer slurry

[0038] The environment-friendly PVC surface layer slurry is composed of the following components by weight:

[0039] PVC resin powder 100

[0040] Environmental plasticizer 65

[0041] Environmentally friendly PVC color paste 6

[0042] Stabilizer 2

[0043] Filler 30

[0044] protein powder 4

[0045] The environment-friendly PVC foam layer slurry is composed of the following components by weight:

[0046] PVC resin powder 100

[0047] Environmental plasticizer 70

[0048] Environmental foaming agent 4

[0049] Stabilizer 2

[0050] Filler 130

[0051] protein powder 5

[0052] The environment-friendly PVC adhesive slurry is composed of the following components by weight:

[0053] Waterborne polyurethane resin 100

[0054] Accelerator 0-0.2

[0055] According to the above metering ratio, the ingredients are ...

Embodiment 2

[0061] 1) Preparation of surface layer, foam layer and adhesive layer slurry:

[0062] Preparation of surface layer, foam layer and adhesive layer slurry

[0063] The environment-friendly PVC surface layer slurry is composed of the following components by weight:

[0064] PVC resin powder 100

[0065] Environmental plasticizer 60

[0066] Environmental protection PVC color paste 5

[0067] Filler 25

[0068] Stabilizer 2

[0069] protein powder 3

[0070] The environment-friendly PVC foam layer slurry is composed of the following components by weight:

[0071] PVC resin powder 100

[0072] Environmental plasticizer 75

[0073] Environmentally friendly blowing agent 5

[0074] Stabilizer 2

[0075] Filler 150

[0076] protein powder 5

[0077] The environment-friendly PVC adhesive slurry is composed of the following components by weight:

[0078] Waterborne polyurethane resin 100

[0079] Accelerator 0~0.2

[0080] According to the above metering ratio, the ingredi...

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Abstract

The invention discloses a gas-permeable moisture-absorption type environmentally-friendly polyvinyl chloride synthetic leather and a manufacturing method thereof. The synthetic leather is prepared from an environmentally-friendly polyvinyl chloride formula by adopting release paper knife-coating. The gas-permeable moisture-absorption functional environmentally-friendly polyvinyl chloride synthetic leather is manufactured by adding gas-permeable moisture-absorption type protein powder to a non-phthalate environmentally-friendly plasticizer and an environmentally-friendly color paste, and simultaneously adopting aqueous polyurethane adhesive slurry to replace a traditional paste resin adhesion layer. The synthetic leather has high peeling strength and has gas permeability and moisture absorption property of true leather; the minus 20DEG C low-temperature flex resistance of the synthetic leather is up to 30000 times; and through third-party testing, the product can completely achieve European union REAC 46 environmentally-friendly tests.

Description

technical field [0001] The invention belongs to the field of textile coating manufacture, and in particular relates to a vapor-permeable and moisture-absorbing environment-friendly polyvinyl chloride synthetic leather and a manufacturing method thereof. Background technique [0002] At present, polyurethane and polyvinyl chloride synthetic leather are widely used in commercial furniture and household furniture and other furniture fields. Polyurethane synthetic leather has the advantages of high imitation and good hand feeling, and has been widely favored by the market. However, a large amount of DMF solvent with certain toxicity and volatility is used in its manufacturing process. Even after sufficient drying, DMF will still have a large amount of residue, which will become a source of excessive VOC pollution in indoor air; at the same time, polyurethane synthetic leather is resistant to hydrolysis, Insufficient weather resistance and other problems limit its further wide a...

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
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Application Information

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IPC IPC(8): D06N3/06B32B27/18B32B27/30B32B27/12
Inventor 臧德虎王忠权
Owner HEFEI ANSHAN COATING FABRICS
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