CN101886344A - Method for preparing leather by performing wire drawing on leather - Google Patents
Method for preparing leather by performing wire drawing on leather Download PDFInfo
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- CN101886344A CN101886344A CN 201010235311 CN201010235311A CN101886344A CN 101886344 A CN101886344 A CN 101886344A CN 201010235311 CN201010235311 CN 201010235311 CN 201010235311 A CN201010235311 A CN 201010235311A CN 101886344 A CN101886344 A CN 101886344A
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Abstract
The invention relates to a method for preparing leather by performing wire drawing on leather. In the method, scrap leather is processed into a non-woven or woven leather product, wherein the scrap leather is livestock skin leather and leather leftover. The method comprises the following steps of: cutting, grinding, smashing, soaking, stirring and filtering the scrap leather to obtain pure leather slurry; stirring 50 to 80 weight percent of pure leather slurry, 10 to 30 weight percent of polyvinyl alcohol and 10 to 20 weight percent of absolute ethyl alcohol to obtain mixed leather slurry; and preparing the mixed leather slurry into the non-woven or woven leather product by using equipment. The woven leather product processed and produced by the method has very high air permeability which can be compared favorably with that of an all-cotton textile, and is durable. A leather product or leather garment can be manufactured integrally without splicing. Being basically similar to cotton textile processing equipment, leather wire drawing processing equipment has low cost and high economic benefit.
Description
Technical field
The present invention relates to leather substance, particularly relate to the skin silk manufacturing material that a kind of livestock leather and leather tailing synthesize with polyvinyl alcohol (PVA) raw material.
Background technology
Current leather is various in style, as sheepskin, ox-hide, white horse with a black mane skin and various animal's leather class and synthetic nonwoven skin class.But the utility ratio of animal's leather is limited, and every finished product skin has only 65% utilization rate, and 35% leather is a scrap leather, hesitates to discard.So not only wasted a large amount of leather resources, and traditional fur clothing goods are subjected to seasonal effect, as using because of the gas permeability difference summer.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of handling ease, meeting the market requirement and the method for the skin wire drawing process hides of turning waste into wealth, this method is used tailing and is made and have having of good permeability and spin leather and have the strong nonwoven leather of heat-insulating property, and this leather can be used as dual-use clothes and apparatus.
The technical scheme that the present invention solves its technical problem employing is: scrap leather is processed into nonwoven or spins leather products, scrap leather is livestock leather and leather tailing, this scrap leather through cutting, roll and obtain pure latex after smashing to pieces, soak, stir and filtering, again pure latex 50～80% is stirred to mixing latex with polyvinyl alcohol 10～30%, absolute ethyl alcohol 10～20%, described proportioning is weight percentage, and makes nonwoven or spins leather products with equipment then.
Skin wire-drawing technology provided by the invention is a kind of new technology of textile industry, the precedent of drawwing wire at China's skin also of no use.With the unordered cutting of corium tailing, soak, roll, smash to pieces into latex, filter and remove residue then stirs synthetic wire drawing shape (like fibrous spinning) with the polyvinyl alcohol raw material again but stay pure latex, just can pull into by designing requirement and can knit the hide fiber silk.
Polyvinyl alcohol (PVA) outward appearance is a white powder, is a kind of purposes high molecular weight water soluble polymer quite widely, and performance is between plastics and rubber, and its purposes can be divided into fiber and non-fiber two big purposes.Because PVA has unique powerful cementability, epithelium pliability, flatness, oil resistivity, solvent resistance, protecting colloid, gas barrier performance, ABRASION RESISTANCE and the resistance to water that has through special treatment; therefore except making fibrous raw material, range of application spreads all over weaving.Soak mix wire drawings such as yarn slurry, fabric finishing agent, vinylon fiber raw material.
The present invention compared with prior art has following main remarkable advantage:
One. processing is not subject to primary corium leather kind, so long as the tailing of primary corium all can be selected for use.
They are two years old. add the restriction that be not subjected to conditions such as time, weather, environment man-hour.
They are three years old. and the performance that the penetrating gas of the leather products spun is arranged that processes is very good, can compare with the cotton textiles, and durable in use endurable.
They are four years old. the nonwoven leather products heat-insulating property that processes is better, fully can with primary corium leather goods than excellent.In the time of insulation, the performance of penetrating gas is also very good.
They are five years old. process no matter spin leather products or nonwoven leather products and carry out clothing and make leatherware the time, all can make and need not splicing of the monoblock material.
They are six years old. and do not need to invest in addition process equipment, processing skin wire drawing tanning equipment is similar substantially to the equipment of cotton spinning apparatus and synthetic leather, thereby lays a good foundation for reducing production costs.
In a word, the present invention is a kind of method for leather-making of initiative, and this method is a raw material with the leftover bits of primary corium, produce similar corium leather and cotton textiles than excellent having spin, the new product of nonwoven leather, with low cost, the economic benefit height.
The specific embodiment
The method of skin wire drawing process hides provided by the invention is that the basis is designed with weaving paper industry technology, this method is: livestock leather tailing process is cut, rolled and smash to pieces, soak, stir and filter, again with polyvinyl alcohol (PVA) raw material mix, the raw material that obtains has two kinds of purposes, a kind of is to utilize no spinning equipment to make the nonwoven leather products, and a kind of is that utilization has the spinning equipment wire drawing to weave to have made again and spins leather products.
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1. nonwoven leather products
Cutting: livestock leather tailing is put in the casing of mechanical cutter and carried out unordered strip or the sheet leather material of cutting into, this mechanical cutter can be bought from market, and for example can adopt model is YST1 type (homemade multipurpose cutting machine).
Roll and smash to pieces: strip or sheet leather material are put into mangle roll and smash to pieces, obtain rolling the leather material of smashing to pieces, it is the homemade mangle of GPY3 type that this mangle can adopt model.
Soak: will roll the leather material of smashing to pieces and put into the preprepared cement pit, with 60% salpeter solution and 40% alcohol immersion, about 2～4 days of soak time obtains latex.Cement pit is generally long 3m, wide 2m, high 1.5m.
In order to improve the latex quality, latex can be rolled with mangle again and smash to pieces, make it to be sposh shape latex.
Stir and filter: latex is stirred with homogenizer (1800 rev/mins) earlier, stir after 18～22 minutes, filter repeatedly, remove slag with filter again, staying granularity is the above pure latexes of 80 orders.
Synthetic: as by weight, pure latex 50%, PVA raw material 30% and 20% absolute ethyl alcohol to be carried out ratio arrange in pairs or groups, use the mixer mix then, obtain mixing latex.
Nonwoven: adopt the temperature automatically controlled leather-working machine of home equipment PVST5 type double end two-wheel nonwoven, will mix latex and directly make the nonwoven leather products.
Embodiment 2. nonwoven leather products
Except that following technology, other is with embodiment 1
Synthetic: as by weight, pure latex 50%, PVA raw material 30% and 20% absolute ethyl alcohol to be carried out ratio arrange in pairs or groups, use the mixer mix then, obtain mixing latex.
Embodiment 3. nonwoven leather products
Except that following technology, other is with embodiment 1
Synthetic: as by weight, pure latex 80%, PVA raw material 10% and 10% absolute ethyl alcohol to be carried out ratio arrange in pairs or groups, use the mixer mix then, obtain mixing latex.
Embodiment 4. spins leather products
Have in the process of the leather products spun in manufacturing, its cutting, roll smash to pieces, immersion, whipping process be with embodiment 1.
Synthetic: pure latex 70%, PVA raw material 20% and 10% absolute ethyl alcohol are carried out the ratio collocation, but then with the mixing latex of mixer mix one-tenth wire drawing state.
Spin: will mix latex earlier with the wire drawing of textile dragging machine, the wire drawing thickness can require reference according to weaving, as 16,20,22 yarns etc., has been made into cotton spinning apparatus then and has spun leather products.
Processing is come out, and to spin the penetrating gas performance of leather products very good, can with the cotton textiles than excellent and durable in use, endurable.But monoblock is made when making the leatherware fur clothing, need not splicing.
Embodiment 5. spins leather products
Except that following technology, other is with embodiment 4.
Synthetic: as by weight, pure latex 50%, PVA raw material 30% and 20% absolute ethyl alcohol to be carried out ratio arrange in pairs or groups, use the mixer mix then, obtain mixing latex.
Embodiment 6. spins leather products
Except that following technology, other is with embodiment 4.
Synthetic: as by weight, pure latex 80%, PVA raw material 10% and 10% absolute ethyl alcohol to be carried out ratio arrange in pairs or groups, use the mixer mix then, obtain mixing latex.
The foregoing description 1-3 product all has the strong performance of heat-insulating property, and embodiment 4-6 product all has the performance of good permeability.Described embodiment product all can be used as dual-use clothes and apparatus.
Claims (10)
1. the method for a skin wire drawing process hides, it is characterized in that a kind of method that scrap leather is processed into nonwoven or the leather products spun is arranged, scrap leather is livestock leather and leather tailing, this scrap leather through cutting, roll and obtain pure latex after smashing to pieces, soak, stir and filtering, again pure latex 50～80% is stirred to mixing latex with polyvinyl alcohol 10～30%, absolute ethyl alcohol 10～20%, described proportioning is weight percentage, and makes nonwoven or spins leather products with equipment then.
2. the method for skin wire drawing process hides according to claim 1 is characterized in that: in cutting process, scrap leather is carried out unordered cutting in the machine cuts box body, form strip or sheet leather material.
3. the method for skin wire drawing process hides according to claim 2 is characterized in that: in rolling the process of smashing to pieces, strip or sheet leather material are put into mangle roll and smash to pieces, obtain rolling the leather material of smashing to pieces.
4. the method for skin wire drawing process hides according to claim 3 is characterized in that: will roll the leather material smashed to pieces the alcohol immersion with 60% salpeter solution and 40%, and soak and obtain latex after 2～4 days; Then latex is stirred and filters, obtaining granularity is the above pure latexes of 80 orders.
5. the method for skin wire drawing process hides according to claim 3, it is characterized in that: will roll the leather material smashed to pieces alcohol immersion with 60% salpeter solution and 40%, soak and obtain latex after 2～4 days, this latex rolls with mangle and smashs into the sposh shape to pieces, then sposh shape latex is stirred and filters, obtaining granularity is the above pure latexes of 80 orders.
6. according to the method for claim 4 or 5 described skin wire drawing process hides, it is characterized in that: pure latex 70% and polyvinyl alcohol 20% and absolute ethyl alcohol 10% are carried out the ratio collocation, and described proportioning is weight percentage; Use the mixer mix then, obtain mixing latex.
7. the method for skin wire drawing process hides according to claim 6 is characterized in that: will mix latex and directly make the nonwoven leather products with the temperature automatically controlled leather-working machine of nonwoven.
8. the method for skin wire drawing process hides according to claim 6 is characterized in that: the temperature automatically controlled leather-working machine of nonwoven adopts the temperature automatically controlled leather-working machine of home equipment PVST5 type double end two-wheel nonwoven.
9. according to the method for claim 4 or 5 described skin wire drawing process hides, it is characterized in that: pure latex 70% and polyvinyl alcohol 20% and absolute ethyl alcohol 10% are carried out the ratio collocation, and described proportioning is weight percentage; But become the mixing latex of wire drawing state then with the mixer mix.
10. the method for skin wire drawing process hides according to claim 9 is characterized in that: will mix latex earlier with the wire drawing of textile dragging machine, and be made into cotton spinning apparatus then and spun leather products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102353118A CN101886344B (en) | 2010-07-23 | 2010-07-23 | Method for preparing leather by performing wire drawing on leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102353118A CN101886344B (en) | 2010-07-23 | 2010-07-23 | Method for preparing leather by performing wire drawing on leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886344A true CN101886344A (en) | 2010-11-17 |
| CN101886344B CN101886344B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102353118A Expired - Fee Related CN101886344B (en) | 2010-07-23 | 2010-07-23 | Method for preparing leather by performing wire drawing on leather |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104652138A (en) * | 2014-11-11 | 2015-05-27 | 韩宏宇 | Polyurethane artificial leather |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215877A (en) * | 1984-04-10 | 1985-10-29 | Yoshihiro Aoyama | Manufacture of synthetic leather |
| CN1330182A (en) * | 2001-07-02 | 2002-01-09 | 韩仕银 | Dry process for preparing regenerated leather |
| CN1446975A (en) * | 2003-04-01 | 2003-10-08 | 陈寿松 | Method for babricating regeneration animal genuine leather material |
| CN1517484A (en) * | 2003-01-13 | 2004-08-04 | 徐银松 | Synthetic leather prepared from non-woven fabric and slurry and its production method |
| CN101597865A (en) * | 2009-07-05 | 2009-12-09 | 韩仕银 | A kind of corium fabric leather and manufacturing technique thereof |
-
2010
- 2010-07-23 CN CN2010102353118A patent/CN101886344B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215877A (en) * | 1984-04-10 | 1985-10-29 | Yoshihiro Aoyama | Manufacture of synthetic leather |
| CN1330182A (en) * | 2001-07-02 | 2002-01-09 | 韩仕银 | Dry process for preparing regenerated leather |
| CN1517484A (en) * | 2003-01-13 | 2004-08-04 | 徐银松 | Synthetic leather prepared from non-woven fabric and slurry and its production method |
| CN1446975A (en) * | 2003-04-01 | 2003-10-08 | 陈寿松 | Method for babricating regeneration animal genuine leather material |
| CN101597865A (en) * | 2009-07-05 | 2009-12-09 | 韩仕银 | A kind of corium fabric leather and manufacturing technique thereof |
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| Publication number | Publication date |
|---|---|
| CN101886344B (en) | 2012-05-30 |
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Granted publication date: 20120530 Termination date: 20210723 |