CN102978740A - Collagen and polyvinyl alcohol composite fiber and manufacturing method thereof - Google Patents
Collagen and polyvinyl alcohol composite fiber and manufacturing method thereof Download PDFInfo
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- CN102978740A CN102978740A CN2012105787917A CN201210578791A CN102978740A CN 102978740 A CN102978740 A CN 102978740A CN 2012105787917 A CN2012105787917 A CN 2012105787917A CN 201210578791 A CN201210578791 A CN 201210578791A CN 102978740 A CN102978740 A CN 102978740A
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Abstract
The invention relates to a collagen and polyvinyl alcohol composite fiber. The collagen and polyvinyl alcohol composite fiber takes collagen and polyvinyl alcohol as main raw materials and is processed and produced by high-strength high-modulus polyvinyl alcohol fiber production equipment through a high-strength high-modulus process. The collagen and polyvinyl alcohol composite fiber has high fiber strength which can be up to 2.0-10.0 CN/dtex, is a medium-strength medium-modulus novel protein fiber product and is applicable to the processing of fibers for textile clothing products and wigs having high strength requirements.
Description
Technical field
Collagen and polyvinyl alcohol composite fiber and manufacture method thereof belong to chemical fibre and make the field, are a kind of use vinylon high-strength and high-modulus technique, by a kind of protein composite fibre of collagen and the production of polyvinyl alcohol mixing spinning process.
Background technology
Multiple proteins fiber and manufacture method thereof have appearred in China in recent years, the most representative is soybean protein and polyvinyl alcohol composite fiber (abbreviation soybean fiber), milk protein and polyacrylonitrile composite fiber (abbreviation milk fibre), soybean fiber is that the PVA-based protein fibre of representative adopts the conventional production equipment and process of vinylon to produce, and milk fibre is that the polyacrylonitrile-radical protein fibre of representative adopts acrylic fiber production process equipment and technique to produce.Collagen of the present invention and polyvinyl alcohol composite fiber use high strength high modulus polyvinyl alcohol fiber production equipment and high-strength and high-modulus technique to produce, and product intensity is high, and this fiber is applicable to process the textile garment product higher to requirement of strength.
Summary of the invention
Collagen of the present invention and polyvinyl alcohol composite fiber, use collagen and polyvinyl alcohol to be main raw material, adopt high strength high modulus polyvinyl alcohol fiber production equipment and high-strength and high-modulus technique to carry out processing, fibre strength is higher, can reach 4.0～8.0CN/dtex, be the novel protein fiber product of modulus in a kind of middle intensity, be applicable to process textile garment product and the wig fiber higher to requirement of strength.
Collagen of the present invention and polyvinyl alcohol composite fiber mainly comprise following composition and consist of: collagen 5～60%, polyvinyl alcohol 39～94.8%, borate cross-linking agent 0.2～1.0%; Fiber number is: 1.0～60dtex; Fracture strength is: 2.0～10.0CN/dtex.The preferred ox-hide Hydrolyzed Collagen of collagen raw material, best is that the collagen mean molecule quantity reaches more than 30,000.The high alcoholysis degree product of polyvinyl alcohol selective polymerization degree more than 1750 is such as the product of the models such as 1799,2199,2499.
The manufacture method of collagen and polyvinyl alcohol composite fiber, its concrete steps are as follows:
1, the preparation of spinning solution
(1), the washing of polyvinyl alcohol: add the polyvinyl alcohol of about 60% volume in the polyvinyl alcohol water car-washing, the emerge in worm water that adds 30 ℃ is emptying with water after 1～2 hour, and the emerge in worm water that adds again 30 ℃ is emptying with water after 30 minutes.Polyvinyl alcohol after the washing requires to reach: moisture content 41% ± 3%, sodium acetate 0.22% ± 0.04%, swelling capacity 145 ± 15%;
(2), the dissolving of collagen: 1. adding an amount of 30～50 ℃ of warm water in number protein dissolving machine, stir, be metered into collagen, stir and infiltrate 10～30 minutes, be heated to 80～98 ℃ of stirring and dissolving 30～60 minutes, 2. the filter of 200～500 order filtering accuracies is filtered in number PVA dissolving machine stand-by;
(3), the dissolving of polyvinyl alcohol: the washing polyvinyl alcohol that adds requirement in the protein mixed solution (2. number PVA dissolving machine) after filter, stirring also is warming up to 98 ± 2 ℃, dissolved 120 minutes, the crosslinking agent boric acid that adds again polyvinyl alcohol consumption 1～5%, adjust PH=3～5 with acetic acid, mix 30 minutes, effective solid component content is 10～30% in the spinning solution of making;
(4), filter together: the sintering metal continuous filter with 10～50um filters; Or filter with flame filter press;
(5), deaeration: adopt the discontinuous degassing bucket: be incubated 98 ± 2 ℃, normal pressure discontinuous degassing 4～8 hours;
(6), two roads filtration, pressure regulation: the sintering metal continuous filter with 10～50um filters, or filters with flame filter press, carries out spinning again after the voltage stabilizing of pressure regulation groove.
2, spinning
Spinning uses ripe high strength high modulus polyvinyl alcohol fiber production equipment and technique to carry out, and its technical process is: spinning → coagulation forming → slubbing drawing-off → neutralization → two bath drawing-offs → wash → oil (high strength high modulus polyvinyl alcohol fiber finish) → drying → preheating → dry heat drafting → contraction typing → rolling (semi-finished product fiber).
The hole diameter of spinneret that spinning process is used is the circular port spinnerets of diameter 0.06～0.5mm, or the sectional area Special-shaped hole spinneret plates such as tri-angle-holed spinnerets suitable with diameter 0.06～0.5mm circular port, to obtain the fiber of different cross section shape.Use the circular port spinnerets, the fibre section that is spun into is sub-circular; Use tri-angle-holed spinnerets, the fibre section that is spun into is subtriangular.
The technological parameter of spinning process is:
Coagulating bath: NaOH 20～50g/L
Na
2SO
4?300～380g/L
40～50 ℃ of temperature
Spinning: the hole diameter of spinneret 0.06～0.5mm
Spouting velocity 5.0～30m/min
The first draw-off godet speed 3.0～15m/min
Second spinning reel speed 5.0～30m/min
Neutralization is bathed: H
2SO
42～10g/L
Na
2SO
4?350g/L
30～50 ℃ of temperature
Speed 5.0～30m/min
Two bathe: H
2SO
40.2～0.5g/L
Na
2SO
4?380g/L
80～90 ℃ of temperature
Speed 8.0～60m/min
Washing: 40～60 ℃ of temperature
Fiber boron content 0.2～0.7%(is in boric acid after the washing)
Speed 8.5～65m/min
Oil: oil concentration 2～5%
Dry: fiber entry moisture content 130～150%
Fiber outlet moisture content 1～3%
Speed 8.5～65m/min
90～200 seconds time
125～150 ℃ of dry district's temperature
140～200 ℃ of dry two district's temperature
Preheating: speed 8.5～70m/min
70～90 seconds time
220～230 ℃ of temperature
Dry heat drafting: speed 18～180m/min
40～60 seconds time
230～250 ℃ of temperature
Shrink typing: speed 17.6～175m/min
30～50 seconds time
230～260 ℃ of temperature
Total draft multiple: 6～12 times
3, the textile garment arrangement of fiber
Use vinylon long filament acetalizing machine and technique to carry out the acetalation arrangement, its technical process is: acetalation puts in order → washes → and oils → curling → dryness finalization → cut-out → packing → finished fiber.
4, the wig arrangement of fiber
Fiber in the spinning process after shrinking typing directly carries out: (the wig finish) → dryness finalization → traction that oils → quantitative vanning → finished product wig tow.Finish is the wig finish oil of improving smooth and gloss, and oil concentration 3～5% presses liquid rate 60～65%.
The percentage composition that uses in this specification is mass percent.
The specific embodiment
Embodiment one
The textile garment that contains collagen 25%, polyvinyl alcohol 74.5%, boric acid 0.5% take production with collagen and polyvinyl alcohol composite fiber 1000kg as example, original liquid concentration 16.5%, then total former liquid measure is 6060kg, its concrete steps are as follows:
1, the preparation of spinning solution
(1), the washing of polyvinyl alcohol: add the polyvinyl alcohol of about 60% volume in the polyvinyl alcohol water car-washing, the emerge in worm water that adds 30 ℃ is emptying with water after 1～2 hour, and the emerge in worm water that adds again 30 ℃ is emptying with water after 30 minutes; Polyvinyl alcohol after the washing requires to reach: moisture content 41% ± 3%, sodium acetate 0.22% ± 0.04%, swelling capacity 145 ± 15%.
(2), the dissolving of collagen
1. adding 30～50 ℃ of warm water 2000kg in number protein dissolving machine, stir, add the collagen 284kg of purity 88%, stir infiltration 30 minutes, be heated to 80～98 ℃ of stirring and dissolving 60 minutes, 2. the filter of 500 order filtering accuracies is filtered in number PVA dissolving machine stand-by.
(3), the dissolving of polyvinyl alcohol: in the protein mixed solution (2. number PVA dissolving machine) after filter, add 30～50 ℃ of warm water 1930kg, add washing polyvinyl alcohol 1817kg(and contain pure polyvinyl alcohol 745kg), stirring also is warming up to 98 ± 2 ℃, dissolved 120 minutes, add again the crosslinking agent boric acid 11kg of polyvinyl alcohol consumption 1.5%, adjust PH=3～5(with acetic acid and consume approximately acetic acid 15～20kg), mix 30 minutes.The spinning solution 6060kg that makes, effectively solid component content is 16.5%.
(4), filter together: the sintering metal continuous filter with 10～20um filters, or filters with flame filter press.
(5), deaeration: adopt the discontinuous degassing bucket, be incubated 98 ± 2 ℃, normal pressure discontinuous degassing 4～8 hours.
(6), two roads filtration, pressure regulation: the sintering metal continuous filter with 10～20um filters, or filters with flame filter press, carries out spinning again after the voltage stabilizing of pressure regulation groove.
2, spinning
Spinning uses ripe high strength high modulus polyvinyl alcohol fiber production equipment and technique to carry out, and its technical process is: spinning → coagulation forming → slubbing drawing-off → neutralization → two bath drawing-offs → wash → oil (high strength high modulus polyvinyl alcohol fiber finish) → drying → preheating → dry heat drafting → contraction typing → rolling (semi-finished product fiber).
The hole diameter of spinneret that spinning process is used is the circular port spinnerets of diameter 0.06～0.1mm, or the sectional area Special-shaped hole spinneret plates such as tri-angle-holed spinnerets suitable with diameter 0.06～0.1mm circular port, to obtain the fiber of different cross section shape.Use the circular port spinnerets, the fibre section that is spun into is sub-circular; Use tri-angle-holed spinnerets, the fibre section that is spun into is subtriangular.
The technological parameter of spinning process is:
Coagulating bath: NaOH 50g/L
Na
2SO
4?350g/L
Temperature 45 C
Spinning: the hole diameter of spinneret 0.06～0.1mm, hole count 10000 holes
Spouting velocity 20.0m/min
The first draw-off godet speed 8.0m/min
Second spinning reel speed 15.0m/min
Neutralization is bathed: H
2SO
44～5g/L
Na
2SO
4?350g/L
40～45 ℃ of temperature
Speed 15.0m/min
Two bathe: H
2SO
40.3g/L
Na
2SO
4?380g/L
80 ℃ of temperature
Speed 30.0m/min
Washing: 40～60 ℃ of temperature
Fiber boron content 0.45～0.55%(is in boric acid after the washing)
Speed 31.0m/min
Oil: oil concentration 2～5%
Dry: fiber entry moisture content 130～150%
Fiber outlet moisture content 1～3%
Speed 31.0m/min
180 seconds time
125～150 ℃ of dry district's temperature
140～200 ℃ of dry two district's temperature
Preheating: speed 32.0m/min
70～90 seconds time
220～230 ℃ of temperature
Dry heat drafting: speed 80m/min
40～60 seconds time
230～250 ℃ of temperature
Shrink typing: speed 78.4m/min
30～50 seconds time
230～260 ℃ of temperature
Total draft multiple: 10 times
3, the textile garment arrangement of fiber
Use vinylon long filament acetalizing machine and technique to carry out the acetalation arrangement, its technical process is: acetalation puts in order → washes → and oils → curling → dryness finalization → cut-out → packing → finished fiber.The finished fiber fiber number is 1.0～3.0dtex; Fracture strength is 4.0～8.0CN/dtex.
Embodiment two
The wig that contains collagen 30%, polyvinyl alcohol 69.5%, boric acid 0.5% take production with collagen and polyvinyl alcohol composite fiber 1000kg as example, original liquid concentration 18.0%, then total former liquid measure is 5555kg, its concrete steps are as follows:
1, the preparation of spinning solution
(1), the washing of polyvinyl alcohol: add the polyvinyl alcohol of about 60% volume in the polyvinyl alcohol water car-washing, the emerge in worm water that adds 30 ℃ is emptying with water after 1～2 hour, and the emerge in worm water that adds again 30 ℃ is emptying with water after 30 minutes; Polyvinyl alcohol after the washing requires to reach: moisture content 41% ± 3%, sodium acetate 0.22% ± 0.04%, swelling capacity 145 ± 15%.
(2), the dissolving of collagen
1. adding 30～50 ℃ of warm water 2000kg in number protein dissolving machine, stir, add the collagen 284kg of purity 88%, stir infiltration 30 minutes, be heated to 80～98 ℃ of stirring and dissolving 60 minutes, 2. the filter of 200 order filtering accuracies is filtered in number PVA dissolving machine stand-by.
(3), the dissolving of polyvinyl alcohol: in the protein mixed solution (2. number PVA dissolving machine) after filter, add 30～50 ℃ of warm water 1550kg, add washing polyvinyl alcohol 1695kg(and contain pure polyvinyl alcohol 695kg), stirring also is warming up to 98 ± 2 ℃, dissolved 120 minutes, add again the crosslinking agent boric acid 10.5kg of polyvinyl alcohol consumption 1.5%, adjust PH=3～5(with acetic acid and consume approximately acetic acid 15～20kg), mix 30 minutes.The spinning solution 5555kg that makes, effectively solid component content is 18.0%.
(4), filter together: the sintering metal continuous filter with 30～50um filters, or filters with flame filter press.
(5), deaeration: adopt the discontinuous degassing bucket: be incubated 98 ± 2 ℃, normal pressure discontinuous degassing 4～8 hours.
(6), two roads filtration, pressure regulation: the sintering metal continuous filter with 30～50um filters, or filters with flame filter press, carries out spinning again after the voltage stabilizing of pressure regulation groove.
2, spinning
Spinning uses ripe high strength high modulus polyvinyl alcohol fiber production equipment and technique to carry out, and its technical process is: spinning → coagulation forming → slubbing drawing-off → neutralization → two bath drawing-offs → wash → oil (high strength high modulus polyvinyl alcohol fiber finish) → drying → preheating → dry heat drafting → contraction typing → rolling → semi-finished product fiber.
The hole diameter of spinneret that spinning process is used is the circular port spinnerets of diameter 0.3～0.5mm, or the sectional area Special-shaped hole spinneret plates such as tri-angle-holed spinnerets suitable with diameter 0.3～0.5mm circular port, to obtain the fiber of different cross section shape.Use the circular port spinnerets, the fibre section that is spun into is sub-circular; Use tri-angle-holed spinnerets, the fibre section that is spun into is subtriangular.
The technological parameter of spinning process is:
Coagulating bath: NaOH 50g/L
Na
2SO
4?350g/L
Temperature 45 C
Spinning: the hole diameter of spinneret 0.3～0.5mm, hole count 1000～2000 holes
Spouting velocity 10.0m/min
The first draw-off godet speed 5.0m/min
Second spinning reel speed 8.0m/min
Neutralization is bathed: H
2SO
45.0g/L
Na
2SO
4?350g/L
30～50 ℃ of temperature
Speed 8.0m/min
Two bathe: H
2SO
40.3g/L
Na
2SO
4?380g/L
80 ℃ of temperature
Speed 15.0m/min
Washing: 40～60 ℃ of temperature
Fiber boron content 0.45～0.55%(is in boric acid after the washing)
Speed 15.5m/min
Oil: oil concentration 2～5%
Dry: fiber entry moisture content 130～150%
Fiber outlet moisture content 1～3%
Speed 15.5m/min
150～180 seconds time
125～140 ℃ of dry district's temperature
140～180 ℃ of dry two district's temperature
Preheating: speed 15.5m/min
70～90 seconds time
220～230 ℃ of temperature
Dry heat drafting: speed 36.0m/min
40～60 seconds time
230～250 ℃ of temperature
Shrink typing: speed 35.3m/min
30～50 seconds time
230～260 ℃ of temperature
Total draft multiple: 7.2 times
3, the wig arrangement of fiber
Fiber in the spinning process after shrinking typing directly carries out: (the wig finish) → dryness finalization → traction that oils → quantitative vanning → finished product wig tow.Finish is the wig finish oil of improving smooth and gloss, and oil concentration 3～5% presses liquid rate 60～65%.
The finished fiber fiber number is 25.0～50.0dtex, diameter 40～80um, and fracture strength is 3.0～5.0CN/dtex.
Claims (7)
1. collagen and polyvinyl alcohol composite fiber is characterized in that mainly comprising following composition and consist of: collagen 5～60%, polyvinyl alcohol 39～94.8%, borate cross-linking agent 0.2～1.0%; Fiber number is: 1.0～60dtex; Fracture strength is: 2.0～10.0CN/dtex.
2. collagen according to claim 1 and polyvinyl alcohol composite fiber is characterized in that the preferred ox-hide Hydrolyzed Collagen of collagen raw material, and best is that the collagen mean molecule quantity reaches more than 30,000.The high alcoholysis degree product of polyvinyl alcohol raw material selective polymerization degree more than 1750.
3. collagen according to claim 1 and polyvinyl alcohol composite fiber is characterized in that the high alcoholysis degree product of polyvinyl alcohol raw material selective polymerization degree more than 1750.
4. the manufacture method of collagen and polyvinyl alcohol composite fiber is characterized in that its concrete steps are as follows:
A, preparation spinning solution;
B, spinning: spinning uses ripe high strength high modulus polyvinyl alcohol fiber production equipment and technique to carry out, and its technical process is: spinning → coagulation forming → slubbing drawing-off → neutralization → two bath drawing-offs → wash → oil → drying → preheating → dry heat drafting → contraction typing → rolling → semi-finished product fiber;
C, textile garment are with the arrangement of fiber: use vinylon long filament acetalizing machine and technique to carry out the acetalation arrangement, its technical process is: semi-finished product fiber → acetalation puts in order → washes → and oils → curling → dryness finalization → cut-out → packing → finished fiber;
The arrangement of fiber of D, wig: the fiber in the spinning process after shrinking typing, directly carry out: oil → dryness finalization → traction → quantitative vanning → finished product wig tow.
5. the manufacture method of collagen according to claim 4 and polyvinyl alcohol composite fiber, the concrete steps that it is characterized in that preparing spinning solution are as follows:
The washing of a, polyvinyl alcohol: add the polyvinyl alcohol of about 60% volume in the polyvinyl alcohol water car-washing, the emerge in worm water that adds 30 ℃ is emptying with water after 1～2 hour, and the emerge in worm water that adds again 30 ℃ is emptying with water after 30 minutes; Polyvinyl alcohol after the washing requires to reach: moisture content 41% ± 3%, sodium acetate 0.22% ± 0.04%, swelling capacity 145 ± 15%;
The dissolving of b, collagen: 1. adding an amount of 30～50 ℃ of warm water in number protein dissolving machine, stir, be metered into collagen, stir and infiltrate 10～30 minutes, be heated to 80～98 ℃ of stirring and dissolving 30～60 minutes, 2. the filter of 200～500 order filtering accuracies is filtered in number PVA dissolving machine stand-by;
The dissolving of c, polyvinyl alcohol: the washing polyvinyl alcohol that adds requirement in the protein mixed solution (2. number PVA dissolving machine) after filter, stirring also is warming up to 98 ± 2 ℃, dissolved 120 minutes, the crosslinking agent boric acid that adds again polyvinyl alcohol consumption 1～5%, adjust PH=3～5 with acetic acid, mix 30 minutes, effective solid component content is 10～30% in the spinning solution of making;
D, together filtration: the sintering metal continuous filter with 10～50um filters, or filters with flame filter press;
E, deaeration: adopt the discontinuous degassing bucket: be incubated 98 ± 2 ℃, normal pressure discontinuous degassing 4～8 hours;
F, two roads filter, pressure regulation: the sintering metal continuous filter with 10～50um filters, or filters with flame filter press, carries out spinning again after the voltage stabilizing of pressure regulation groove.
6. the manufacture method of collagen according to claim 4 and polyvinyl alcohol composite fiber, it is characterized in that the hole diameter of spinneret that spinning process uses is the circular port spinnerets of diameter 0.06～0.5mm, or the sectional area Special-shaped hole spinneret plate suitable with diameter 0.06～0.5mm circular port, to obtain the fiber of different cross section shape.
7. the manufacture method of collagen according to claim 4 and polyvinyl alcohol composite fiber is characterized in that the technological parameter of spinning process is:
Coagulating bath: NaOH 20～50g/L
Na
2SO
4?300～380g/L
40～50 ℃ of temperature
Spinning: the hole diameter of spinneret 0.06～0.5mm
Spouting velocity 5.0～30m/min
The first draw-off godet speed 3.0～15m/min
Second spinning reel speed 5.0～30m/min
Neutralization is bathed: H
2SO
42～10g/L
Na
2SO
4?350g/L
30～50 ℃ of temperature
Speed 5.0～30m/min
Two bathe: H
2SO
40.2～0.5g/L
Na
2SO
4?380g/L
80～90 ℃ of temperature
Speed 8.0～60m/min
Washing: 40～60 ℃ of temperature
Fiber boron content 0.2～0.7%(is in boric acid after the washing)
Speed 8.5～65m/min
Oil: oil concentration 2～5%
Dry: fiber entry moisture content 130～150%
Fiber outlet moisture content 1～3%
Speed 8.5～65m/min
90～200 seconds time
125～150 ℃ of dry district's temperature
140～200 ℃ of dry two district's temperature
Preheating: speed 8.5～70m/min
70～90 seconds time
220～230 ℃ of temperature
Dry heat drafting: speed 18～180m/min
40～60 seconds time
230～250 ℃ of temperature
Shrink typing: speed 17.5～175m/min
30～50 seconds time
230～260 ℃ of temperature
Total draft multiple: 6～12 times.
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| CN2012105787917A CN102978740A (en) | 2012-12-27 | 2012-12-27 | Collagen and polyvinyl alcohol composite fiber and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109898361A (en) * | 2019-02-14 | 2019-06-18 | 福建省三丰纺织器材有限公司 | A kind of Chemical fiber paper bobbin preparation method |
| CN111501121A (en) * | 2019-01-31 | 2020-08-07 | 华北水利水电大学 | Method for preparing collagen fiber by wet spinning |
| CN113249822A (en) * | 2021-05-30 | 2021-08-13 | 天元纤维股份有限公司 | Milk velvet and preparation method thereof |
| CN113638062A (en) * | 2021-08-19 | 2021-11-12 | 华美时尚有限公司 | Spinning method and spinning device for soft skin-nourishing amino acid fibers |
| CN114753047A (en) * | 2022-04-27 | 2022-07-15 | 厦门和新科技有限公司 | Fish scale protein modified polyamide-ammonia skin-friendly fabric and processing technology thereof |
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| CN101597817A (en) * | 2008-07-01 | 2009-12-09 | 河南瑞贝卡发制品股份有限公司 | A kind of preparation method of collagen fiber for artificial hair |
| CN101824668A (en) * | 2010-04-09 | 2010-09-08 | 卓宝松 | Method for producing bleached and dyed milk protein hairs |
| CN102808237A (en) * | 2011-06-02 | 2012-12-05 | 陈福库 | Protein composite fiber for wig and manufacturing method thereof |
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| CN101597817A (en) * | 2008-07-01 | 2009-12-09 | 河南瑞贝卡发制品股份有限公司 | A kind of preparation method of collagen fiber for artificial hair |
| CN101824668A (en) * | 2010-04-09 | 2010-09-08 | 卓宝松 | Method for producing bleached and dyed milk protein hairs |
| CN102808237A (en) * | 2011-06-02 | 2012-12-05 | 陈福库 | Protein composite fiber for wig and manufacturing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501121A (en) * | 2019-01-31 | 2020-08-07 | 华北水利水电大学 | Method for preparing collagen fiber by wet spinning |
| CN109898361A (en) * | 2019-02-14 | 2019-06-18 | 福建省三丰纺织器材有限公司 | A kind of Chemical fiber paper bobbin preparation method |
| CN113249822A (en) * | 2021-05-30 | 2021-08-13 | 天元纤维股份有限公司 | Milk velvet and preparation method thereof |
| CN113638062A (en) * | 2021-08-19 | 2021-11-12 | 华美时尚有限公司 | Spinning method and spinning device for soft skin-nourishing amino acid fibers |
| CN114753047A (en) * | 2022-04-27 | 2022-07-15 | 厦门和新科技有限公司 | Fish scale protein modified polyamide-ammonia skin-friendly fabric and processing technology thereof |
| CN114753047B (en) * | 2022-04-27 | 2023-09-22 | 厦门和新科技有限公司 | Fish scale protein modified nylon-ammonia skin-friendly fabric and processing technology thereof |
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Application publication date: 20130320 |