Gas-permeable moisture-absorption type environmentally-friendly polyvinyl chloride synthetic leather and manufacturing method thereof
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A polyvinyl chloride and synthetic leather technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of poor vapor permeability and moisture absorption, difficult to pass environmental protection tests, residues, etc., and achieve durability. Good, excellent moisture absorption and moisture conductivity, high bonding fastness effect
Inactive Publication Date: 2013-04-03
HEFEI ANSHAN COATING FABRICS
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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
[0075] The environment-friendly PVC adhesive slurry is composed of the following components by weight:
[0076] Waterborne polyurethane resin 100
[0077] Accelerator 0~0.2
[0078] According to the above metering ratio, the ingred...
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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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 proteinpowder to a non-phthalate environmentally-friendly plasticizer and an environmentally-friendly color paste, and simultaneously adopting aqueous polyurethaneadhesiveslurry 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 textilecoating 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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