Superfine fiber leather and preparation method thereof

A technology of superfine fiber leather and additives, which is applied in the direction of chemical instruments and methods, textiles and papermaking, synthetic resin layered products, etc. It can solve the problems of poor moisture permeability and difficulty in simultaneously improving moisture permeability and wear resistance. Achieve the effect of improving wearing life and improving comfort
CN102102301AInactive Publication Date: 2011-06-22HUAFON MICROFIBER SHANGHAI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAFON MICROFIBER SHANGHAI
Publication Date
2011-06-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a preparation method of superfine fiber leather, which comprises the steps of: coating a surface layer, a middle layer and an adhesive layer on a piece of release paper; laminating the release paper with dyed suede leather; drying; and removing the release paper to obtain the superfine fiber leather, wherein a sizing agent of the surface layer and the middle layer contains 100 parts of polyurethane resin, 10 to 60 parts of polar solvent, 1 to 6 parts of friction resistant additive and 0.5 to 5 parts of hydrophilic additive; a sizing agent of the adhesive layer contains 100 parts of polyurethane resin, 10 to 60 parts of polar solvent, 1 to 6 parts of friction resistant additive, 0.5 to 5 parts of hydrophilic additive and 70 to 90 parts of absorbent resin; a fluorine modified polyethylene wax substance is adopted as the friction resistant additive; and a hydrophilic organic silicon substance is adopted as the hydrophilic additive. The invention also discloses superfine fiber leather which has the moisture permeability higher than or equal to 850 grams per square meter for every 24 hours, which is higher than that of the natural leather. The preparation method disclosed by the invention can also improve the wear resistant time which is higher than 10000 times in the preferable embodiment of the invention.
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Description

technical field

[0001] The invention relates to the field of artificial leather, in particular to a superfine fiber leather and a preparation method thereof. Background technique

[0002] Beam-shaped microfiber PU synthetic leather, known as the third-generation synthetic leather in the industry, is gradually replacing genuine leather with its excellent physical and chemical properties, and is widely used in gloves, footwear, luggage, furniture, ball games, and automotive interiors. Jewelry, clothing and other fields. In recent years, with the improvement of people's living standards, people have higher and higher requirements for the quality of clothing. In addition to requiring clothing to have excellent color fastness, more consumers have put forward requirements for clothing comfort, which is bound to increase Become the future development direction of high-end clothing.

[0003] Polyurethane synthetic leather, because of its dense film on the surface, makes its moistu...

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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