Flame-retardant leather and method of producing the same

A manufacturing method and leather technology, applied in chemical instruments and methods, textiles and papermaking, fabric kneading/softening, etc., can solve problems such as poor flame retardancy, and achieve improved flame retardancy, safety, and application range. Effect

Inactive Publication Date: 2009-07-01
NINGBO BRIDGE SYNTHETIC LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to change the problem of poor flame retardancy of current leather products by providing a flame-retar...

Method used

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  • Flame-retardant leather and method of producing the same
  • Flame-retardant leather and method of producing the same
  • Flame-retardant leather and method of producing the same

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Embodiment Construction

[0016] Specific embodiments of the present invention are described below in conjunction with accompanying drawing:

[0017] A flame-retardant leather, including: a semi-finished product formula, a veneer formula and a post-processing formula; wherein the semi-finished product formula includes: 23.82% of HW-9020W type polyurethane resin; 15.88% of HDW-30 type polyurethane resin 43.68% dimethylformamide; 4.96% white wood powder; 1.98% high foaming wood powder; 5.95% CACO3 type calcium carbonate; 0.47% 90 type penetrant; 0.07% CF type defoamer ; 0.14% ACR type leveling agent; 0.99% industrial white paste; 1.98% flame retardant; wherein said veneer formula includes: fabric formula and primer formula; said fabric formula includes: 48.78 % new component of SS-150M type polyurethane resin; 39.02% methyl ethyl ketone; 7.31% industrial white flakes; the rest are flame retardants; described primer formula: 51.28% HDA-50 type polyurethane resin new group 35.89% methyl ethyl ketone; 5.13...

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Abstract

The invention relates to a fire-retardant leather and manufacturing process thereof, comprising a semi-finished product formula, a face-covering formula, and a following formula, all with flame retardant agent added. The manufacturing process for the fire-retardant leather includes a semi-finished product process, a face-covering process and a following flame retardancy. The semi-finished product process includes base cloth coiling after check, putting the coil into a dimethylformamide water solution for a first immersion; heating and ironing by an eight roller; coating layer processing, concreting; water washing in the dimethylformamide water solution; drying; winding, middle checking. The face-covering includes unreeling the semi-finished product, jointing the treated release paper; drying for the third time, checking and bundling. The following flame retardancy includes putting the finished leather into a steam kneading machine for steam kneading, adding a fireproofing agent in the kneading process; immersing in the flame retardant and water solution; rolling drying, ripple softening, forming, dry softening, drying; checking and packing the product. Leather manufactured by the method has flame retardancy greatly improved.

Description

technical field [0001] The present invention relates to a kind of leather and its manufacturing method, especially to a kind of flame-retardant leather and its manufacturing method, Background technique [0002] Although the development history of synthetic leather is not long, the large-scale production of synthetic leather in my country began in the mid-1990s, and PU leather was widely used in the late 1990s. At present, synthetic leather produced in various parts of China has been widely used in industries such as clothing, gloves, bags, luggage, furniture, and shoe uppers. However, because the current leather does not have flame retardancy, the scope of use of leather has been affected to a certain extent, and there is also a certain hidden danger to the safety of using leather products. Therefore, how to improve the flame retardancy of leather is an urgent problem to be solved in the leather manufacturing industry. Contents of the invention [0003] The object of th...

Claims

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Application Information

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IPC IPC(8): D06N3/00D06N3/12D06C19/00B32B27/00
Inventor 方同昌
Owner NINGBO BRIDGE SYNTHETIC LEATHER
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