CN1212307A - Method for producing wet-type polyurethane leather based on knitted fabric - Google Patents
Method for producing wet-type polyurethane leather based on knitted fabric Download PDFInfo
- Publication number
- CN1212307A CN1212307A CN 97108231 CN97108231A CN1212307A CN 1212307 A CN1212307 A CN 1212307A CN 97108231 CN97108231 CN 97108231 CN 97108231 A CN97108231 A CN 97108231A CN 1212307 A CN1212307 A CN 1212307A
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- China
- Prior art keywords
- polyurethane leather
- fabric base
- type polyurethane
- fabricbase
- wet
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Abstract
The knitted fabric base wet polyurethane leather processing method is characterized by that it uses high-elasticity knitted fabric base and woven fabric base to make composite fabric base with a certain dry and wet peel bond strength by means of the processes of bonding with liquid glue formed from resin emulsion and volatile solvent and drying, then uses the conventional wet polyurethane leather processing technology to process the obtained composite fabric base, finally adopts dry peeling process to peel off the woven fabric base so as to implement said invented whole processes. Said invention is simple in technological process, convenient for operation, can be matched with existent wet polyurethane leather production process to effectively raise wet polyurethane leather property.
Description
The invention discloses a kind of polyurethane leather processing method capable, refering in particular to is a kind of knitting fabricbase wet type polyurethane leather processing method capable.
Artificial leather is since this century, the forties came out, because some performance has adapted to people's demand in many aspects, demand enlarges day by day, occurs woven fabricbase PVC film leather in 1948 first, the PVC artificial leather is because its gas permeability is poor, and cold resistance is low and make it in use be subjected to many restrictions; 1963, du pont company is trial-produceed woven fabricbase wet method polyurethane PU artificial leather successfully, make quality outward appearance, feel, the sanitation performance of artificial leather all cross over major step, woven fabricbase wet type polyurethane (PU) artificial leather have good saturating wet, gas permeability, abundant, cold resistance good, anti-subduing, fine qualities such as intensity height, but because its fabricbase adopts woven cloth, thereby elasticity and flexibility are relatively poor; And knitted cloth has the better elastic flexibility, but because its tensile strength is low, the washing shrinkage height in wet method polyurethane production process, easily produces contraction, fold, can't produce qualified polyurethane artificial leather.Therefore, elastomeric knitting fabricbase fails to be applied in the production of wet method polyurethane always.
The object of the present invention is to provide a kind of technology simple, knitting fabricbase wet type polyurethane leather processing method capable easy and simple to handle.
The present invention adopts following proposal to realize: with the knitting fabricbase of high elasticity and woven fabricbase through the liquid sticker that resin emulsion and volatile solvent constitute close, dryly form that tool is necessarily dried, the compound fabricbase of hygrometric state peel strength, then through conventional wet type polyurethane leather processing processes, at last, the dry state stripping machine base of weaving cotton cloth is promptly finished whole technology of the present invention.
The present invention is owing to adopt the base cloth that a kind of tool is necessarily done, the compound fabricbase of hygrometric state peel strength is produced as leather, therefore, in wet method polyurethane production technology, can bear the huge tension force of each section in the production process, the guarantor levies fabricbase in process of production, be in smooth and even stress always, overcome the drawback of knitting fabricbase shrink, convolution, for the application of high elasticity knitted cloth in the production of wet type polyurethane leather provides a kind of feasible process, wet type polyurethane performance of leather is improved.
Specific embodiments of the invention are sketched in following:
Earlier with high elasticity knitted cloth and woven cloth through the applying of allyl resin solution, in 80 ℃ predrying, and then, promptly form a compound fabricbase 140 ℃ of dryings 2 minutes; The component of allyl resin solution is: the allyl resin emulsion accounts for weight 80%～90%, the volatile solvent glyoxal accounts for weight 5%～15%, ammoniacal liquor accounts for weight 1%～5%, then, through conventional wet type polyurethane Process for producing leather processing, at last, be that attitude peels off woven fabricbase, promptly finish whole technical process of the present invention.
The present invention is owing to provide the application process of knitted cloth in wet type polyurethane Process for producing leather, thereby, can effectively improve wet type polyurethane leather performance, greatly improve the elasticity and the flexibility of wet type polyurethane leather, the wet type polyurethane leather performance of producing through this method is as follows:
1. TENSILE STRENGTH: radially 〉=210N/3cm
Broadwise≤150N/3cm
2. percentage elongation: radially 〉=60%
Broadwise 〉=190%
3. tearing strength: radially 〉=160N/3cm
Broadwise 〉=240/3cm
4. flexible resistance: 100,000 times (25 ℃) are flawless
5. anti-plug: subzero 20 ℃ of no breaches, soft durometer does not have significant change
6. gas permeability: can directly smog be blown over
7. hygroscopicity and poisture-penetrability: the back side water can be absorbed fully to the leather tissue and can from
The front appears
8. light weight, drapability are good, are difficult for folding, and flexibility is good.
In sum, process of the present invention is simple, and is easy to operate, can be supporting with existing wet type polyurethane Process for producing leather, can effectively promote wet type polyurethane performance of leather, and be suitable for industrialized production, the further perfect production technology of wet type polyurethane leather.
Claims (1)
- Knitting fabricbase wet type polyurethane leather processing method capable, it is characterized in that with high elasticity assorted weave cotton cloth base and woven fabricbase through the liquid sticker that resin emulsion and volatile solvent constitute close, dryly form that tool is necessarily done, the compound fabricbase of hygrometric state peel strength, then through conventional wet type polyurethane leather processing processes, at last, the dry state stripping machine base of weaving cotton cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108231A CN1056660C (en) | 1997-09-19 | 1997-09-19 | Method for producing wet-type polyurethane leather based on knitted fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108231A CN1056660C (en) | 1997-09-19 | 1997-09-19 | Method for producing wet-type polyurethane leather based on knitted fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1212307A true CN1212307A (en) | 1999-03-31 |
| CN1056660C CN1056660C (en) | 2000-09-20 |
Family
ID=5170247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97108231A Expired - Fee Related CN1056660C (en) | 1997-09-19 | 1997-09-19 | Method for producing wet-type polyurethane leather based on knitted fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056660C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074779A (en) * | 2013-01-21 | 2013-05-01 | 浙江科一合成革有限公司 | Four-directional elastic clothing leather and manufacturing method thereof |
| CN105200808A (en) * | 2015-11-10 | 2015-12-30 | 大帝(福建)科技有限公司 | Artificial leather for leather carving and manufacturing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59192779A (en) * | 1983-04-14 | 1984-11-01 | 旭化成株式会社 | Production of sheet-like article excellent in dimensional stability |
| DE3812948C1 (en) * | 1988-04-19 | 1989-06-22 | Fa. Carl Freudenberg, 6940 Weinheim, De | |
| CN1050914A (en) * | 1989-10-12 | 1991-04-24 | 烟台聚氨酯制品厂 | A kind of method for production of polyurethane artificial leather |
| CN1152649A (en) * | 1995-12-20 | 1997-06-25 | 济南耀福塑胶有限公司 | Nature-like leather and productive method |
-
1997
- 1997-09-19 CN CN97108231A patent/CN1056660C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074779A (en) * | 2013-01-21 | 2013-05-01 | 浙江科一合成革有限公司 | Four-directional elastic clothing leather and manufacturing method thereof |
| CN103074779B (en) * | 2013-01-21 | 2015-08-19 | 浙江元新实业有限公司 | Four-way elasticised garment leather and manufacture method thereof |
| CN105200808A (en) * | 2015-11-10 | 2015-12-30 | 大帝(福建)科技有限公司 | Artificial leather for leather carving and manufacturing method thereof |
| CN105200808B (en) * | 2015-11-10 | 2018-03-20 | 大帝(福建)科技有限公司 | Skin carving artificial leather and its manufacture method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1056660C (en) | 2000-09-20 |
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| C10 | Entry into substantive examination | ||
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA CHINA SCIENCE CO., LTD. Free format text: FORMER OWNER: ANSU PLASTIC PRODUCTS FACTORY, CHANGSHA Effective date: 20011229 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20011229 Patentee after: Changsha China Science and Technology Co Ltd Patentee before: Ansu Plastic Products Factory, Changsha |
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| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA ZHONGYUAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANSU PLASTIC PRODUCTS FACTORY, CHANGSHA Effective date: 20020312 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20020312 Patentee after: Changsha Zhongyuan Science and Technology Co., Ltd. Patentee before: Ansu Plastic Products Factory, Changsha |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |