CN101024907A - High-wetness modulus adhesive colloid fiber and preparing method - Google Patents
High-wetness modulus adhesive colloid fiber and preparing method Download PDFInfo
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- CN101024907A CN101024907A CNA2007100139438A CN200710013943A CN101024907A CN 101024907 A CN101024907 A CN 101024907A CN A2007100139438 A CNA2007100139438 A CN A2007100139438A CN 200710013943 A CN200710013943 A CN 200710013943A CN 101024907 A CN101024907 A CN 101024907A
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- 239000000835 fiber Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 25
- 239000000853 adhesive Substances 0.000 title 1
- 230000001070 adhesive effect Effects 0.000 title 1
- 239000000084 colloidal system Substances 0.000 title 1
- 229920002678 cellulose Polymers 0.000 claims abstract description 49
- 239000001913 cellulose Substances 0.000 claims abstract description 49
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000003513 alkali Substances 0.000 claims abstract description 19
- 229920000297 Rayon Polymers 0.000 claims abstract description 15
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000002166 wet spinning Methods 0.000 claims abstract description 5
- 206010048232 Yawning Diseases 0.000 claims description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 31
- 239000012991 xanthate Substances 0.000 claims description 19
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 18
- 238000009987 spinning Methods 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 15
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 14
- 238000007670 refining Methods 0.000 claims description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 238000007598 dipping method Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 230000032050 esterification Effects 0.000 claims description 11
- 238000005886 esterification reaction Methods 0.000 claims description 11
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 238000004090 dissolution Methods 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 238000004061 bleaching Methods 0.000 claims description 8
- 230000001112 coagulating effect Effects 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 150000003973 alkyl amines Chemical class 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 229960001763 zinc sulfate Drugs 0.000 claims description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 4
- 240000000111 Saccharum officinarum Species 0.000 claims description 4
- 235000007201 Saccharum officinarum Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003398 denaturant Substances 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 239000004744 fabric Substances 0.000 abstract description 9
- 230000032683 aging Effects 0.000 abstract 1
- 238000004383 yellowing Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229920002488 Hemicellulose Polymers 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 3
- 229920001407 Modal (textile) Polymers 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000002803 maceration Methods 0.000 description 2
- 238000005517 mercerization Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000009898 sodium hypochlorite bleaching Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The invention discloses a high-humidity modulus viscose fiber with dry strength of 3.5-6.0cN/dtex, wet elastic modulus of 0.35-0.60cN/dtex and wet strength of 2.0-4.5cN/dtex, and prepared of cellulose pulp with degree of polymerization of 500-1200 and alpha-cellulose content >=95% by the steps of dip-basifying, squeezing, ageing, yellowing, dissolving, wet spinning moulding, drafting, etc. And it has features of higher intensity and wet modulus, better loop strength performance, and lower brittleness; and the fabrics made by it has features of high intensity, multiple deformation resistance, alkali resistance, etc.
Description
Technical field
The present invention relates to a kind of textile fabric, the method that especially relates to a kind of viscose of high wet modulus and prepare this koplon.
Background technology
Viscose is that present people use a kind of very widely textile fabric, common viscose fiber has the good wearability and the scope of application widely, but its violent swelling when having hygrometric state makes wet strength and modulus low, fabric is yielding, characteristics such as poor dimensional stability; Simultaneously common viscose is not alkaline-resisting, can not stand to improve the mercerization processing of appearance of fabrics, can only adopt loose formula dyeing during dyeing, makes dyeing course be difficult to carry out continuously, and this has influenced the use of people to viscose to a certain extent.In order to overcome above-mentioned shortcoming, people have developed Pori's nosik (Polynosic) fiber, the characteristics of this fiber be wet strong and wet modulus all than higher, but colluding of Pori's nosik (Polynosic) fiber is lower by force, fragility is bigger, easily form the fibrillation structure, and its preparation technology is also complicated, its product is used be subjected to certain restriction.
Summary of the invention
Technical problem to be solved by this invention has provided a kind ofly to be had higher-strength and wet modulus and has the koplon that colludes epistasis energy and low fragility preferably.
The present invention also provides a kind of preparation method of preparation koplon.
The dried strong 3.5～6.0cN/dtex of this koplon, hygrometric state elastic modelling quantity be 0.35～0.60cN/dtex, wet be by force 2.0～4.5cN/dtex, its be adopt that the degree of polymerization is 500～1200, the cellulose pulp of alpha-cellulose content 〉=95% through dipping alkalization, squeezing, experienced, yellow, dissolving, wet spinning moulding, stretch oneself and yawn, be prepared from after the operation such as concise, oven dry.In order to improve this koplon and wet mould, cellulose pulp can adopt one or two or more kinds the combination in the cotton pulp dregs of rice, wood pulps, bamboo pulp or the sugarcane pulp, and cellulose pulp adopts, and the degree of polymerization is 500～1200, alpha-cellulose content 〉=95%.This koplon has higher dried wet strength and wet modulus, has again simultaneously and collude epistasis energy and low fragility preferably, and fabric is not yielding, and its application performance is good.
When this koplon of preparation, adopt cellulose pulp, as adopting the cotton pulp dregs of rice, wood pulps, the combination of one or more in bamboo pulp and the sugarcane pulp, and the degree of polymerization of cellulose pulp is 500～1200, alpha-cellulose content 〉=95%, cellulose pulp was through the NaOH of 200～300g/l solution impregnation alkalization 0.4～4 hour, hemicellulose level is no more than 5% in the maceration extract, and iron content not in the maceration extract, copper, metals such as manganese, in order to avoid cause dirt to be stained with to cellulose, and squeezing is made after pulverizing and is contained alpha-cellulose 26.5～33.5%, the alkali cellulose of NaOH13～20%, so that the production of subsequent production operation, descended experienced 0.3～16 hour at 20～45 ℃ then, the control alkali cellulose contains alpha-cellulose 25～35%, NaOH13～25% is again with 35～65% CS of relative alpha-cellulose weight
2Yellow reaction generated cellulose xanthate in 2～6 hours, and Processing of Preparation cellulose xanthate spinning solution such as dissolved, and made alpha-cellulose 4.5～10.0%, NaOH4.5～10.0%, viscosity falling ball method 50～300s, degree of ripeness 10%NH
4CI value 8.0～38ml, esterification degree are 35～65, and it is fine than being 0.9～1.2 to control alkali; Adopt the wet spinning moulding of low coagulation bath temperature, low acid, low sodium sulphate and high zinc technology, the i.e. dried strong 3.5～6.0cN/dtex through stretching oneself and yawn, making after the operations such as cut-out, various body lotion are concise, oven dry again after spray orifice is pressed into the coagulating bath spinning of 20～45 ℃ of sulfuric acid 45～105g/l, zinc sulfate 25～90g/l, sodium sulphate 90～290g/l, bath temperatures, the hygrometric state elastic modelling quantity is 0.35～0.60cN/dtex, and wet is by force the finished product viscose of 2.0～4.5cN/dtex.And can be aborning select the reasonable process parameter or suitably adjust according to the needs of working condition and production environment, these all be those skilled in the art the technology that should know.
The bleeding agent polyalkylene glycol alkyl amine that when the alkalization of cellulose pulp dipping, can add relative cellulose 0.1～0.3%, to improve the dipping effect of cellulose pulp, and in the course of dissolution of cellulose xanthate, add 0.3～5.8% denaturant polyoxyethylene fatty amine of relative alpha-cellulose weight, to improve the high esterification degree of cellulose xanthate, degree of ripeness; And when stretching oneself and yawn, can adopt shower nozzle to stretch oneself and yawn, stretch oneself and yawn between dish, three baths are stretched oneself and yawn, four bathe stretch oneself and yawn and bounce back in one or more the mode of combination, and always stretch oneself and yawn than 50～600% according to the needs control of producing, to increase the thickness of fibrocortex, improve the roundness of fibre periphery, improve the size of the lateral order and the increase crystalline region of fiber, and can control that immersion length is not less than 60cm in the coagulating bath, Immersion time is at 0.25～1.5s, cellulose xanthate is solidified be regenerated as cellulose fibre, can certainly carry out suitable adjustment to it according to the needs of producing, the koplon that makes like this, fabric is not yielding under hygrometric state, DIMENSIONAL STABILITY is good and alkaline-resisting good, fiber is had collude strong and lower characteristics such as fragility preferably, spray orifice can adopt circle, square, triangle, Y shape, spinnerets can adopt annular, square, triangle, different in nature spinneretss such as Y shape, 25～75 μ m are adopted in the aperture, for the quality that improves finished product and the service behaviour of equipment, the spinnerets material that is provided with spray orifice adopts tantalum matter plated film or yellow platinum or glass to make, the condition of production according to reality, select reasonably to stretch oneself and yawn combination, spray orifice, and the bleeding agent and the denaturant that use, this be those skilled in the art the technology that should know.
In order to improve the quality of finished product, be 1～25g/l alkali lye carrying out can adopting concentration when refining desulfuration is handled, under 50～95 ℃ of conditions of temperature, carry out, also can adopt concentration is 5～35g/l sodium sulfite solution, is 50～95 ℃ in temperature and carries out.When carrying out refining bleaching, then adopt concentration 0.1～5.5g/l hydrogen peroxide, under 35～65 ℃ of conditions of temperature, carry out, also can adopt concentration 0.1～3.5g/l liquor natrii hypochloritis, under 35～55 ℃ of conditions of temperature, carry out.Select rational desulfurization and bleaching process according to the needs of working condition and production environment, and its each technological parameter is adjusted, this is the known general knowledge of those skilled in the art.
Used various raw material are the raw material of being used always in the current viscose production among the present invention, all can from market, buy and obtain, and the various device that uses used treating tank during as dipping, used squeezer during squeezing, the experienced drum of experienced usefulness, yellow all are the equipment in current viscose production used with dryer, when cutting off with cutting machine, refiner etc. with spinning machine, oven dry with xanthating machine, spinning, also there is no special feature.
Adopt preparation method of the present invention to prepare koplon, not only simple to operation, and it is yielding that the koplon of producing has overcome under the common viscose fiber hygrometric state fabric, poor dimensional stability and not alkaline-resisting shortcoming, poor by force with respect to colluding of Pori's nosik (Polynosic) fiber, shortcomings such as fragility is big have had bigger improvement, and its character is similar to cotton fiber, with the alternative combed cotton of carded cotton blending, can carry out mercerization with cotton blending and handle, adopt its fabric of making to have intensity height, anti-repeatedly morphotropism, advantage such as alkaline-resisting.
The specific embodiment
Embodiment 1
Adopt the degree of polymerization 800, the alpha-cellulose content 96.5% cotton pulp dregs of rice, the NaOH of 240g/l solution impregnation alkalization 0.4 hour, the polyalkylene glycol alkyl amine that adds relative alpha-cellulose amount 0.1% during dipping, and make the dipping used solution in hemicellulose level be no more than 3%, generate alkali cellulose, pulverize the back at 35 ℃ times experienced 8 hours through squeezing, obtain the alkali cellulose that contains alpha-cellulose 29%, contain alkali 18%, adopt relative alpha-cellulose amount 35%CS
2React and generated cellulose xanthate in 2 hours, add the polyoxyethylene fatty amine of relative alpha-cellulose amount 2.5% with the cellulose xanthate dissolution process and in course of dissolution, make alpha-cellulose 9.8%, NaOH5.9%, viscosity (falling ball method) 65s, degree of ripeness (10%NH
4The CI value) 18ml, the viscose glue esterification degree is 35 high esterification degree, the cellulose xanthate spinning solution of high degree of ripeness, wet moulding is adopted in spinning, is circular with spinning solution through spray orifice, material is a tantalum matter plated film, aperture 50 μ m spinning heads are pressed into sulfuric acid 95g/l, zinc sulfate 35g/l, sodium sulphate 200g/l forms, in the coagulating bath that bath temperature is 25 ℃, stretch oneself and yawn through shower nozzle then, stretch oneself and yawn between dish, three baths are stretched oneself and yawn, four baths are stretched oneself and yawn and are bounced back, always stretch oneself and yawn than being 318%, and will make fiber through cutting machine, washing, refining processing, NaOH is adopted in concise desulfurization, its concentration 22g/l, 50 ℃ of temperature, and refining bleaching adopts hydrogen peroxide, its concentration 0.26g/l, 50 ℃ of temperature, bake drying obtains the finished product koplon afterwards, and the Physical Mechanical ability of gained koplon is by force at 4.1cN/dtex, the hygrometric state elastic modelling quantity is 0.52cN/dtex, and wet is 2.95cN/dtex by force.
Embodiment 2
Process is with embodiment 1, just in the refining processing process, adopt sodium hypochlorite bleaching, its concentration 0.1g/l, 55 ℃ of temperature, bake drying obtains the finished product koplon, the doing by force at 3.8cN/dtex of gained koplon, the hygrometric state elastic modelling quantity is 0.46cN/dtex, and wet is 2.35cN/dtex by force.
Embodiment 3
Adopt the degree of polymerization 500, alpha-cellulose content 〉=95.7% wood pulps, the NaOH of 200g/l solution impregnation alkalization 0.6 hour, the polyalkylene glycol alkyl amine that adds relative alpha-cellulose amount 0.16% during dipping, and make the dipping used solution in hemicellulose level be no more than 3.9%, generate alkali cellulose, pulverize the back at 40 ℃ times experienced 0.3 hour through squeezing, obtain the alkali cellulose that contains alpha-cellulose 34.2%, contain NaOH18.3%, add the CS of relative alpha-cellulose amount 44%
2React and generated cellulose xanthate in 2.5 hours, add the polyoxyethylene fatty amine of relative alpha-cellulose amount 1.2% with the cellulose xanthate dissolution process and in course of dissolution, obtain containing alpha-cellulose 4.8%, NaOH4.5%, viscosity (falling ball method) 65s, degree of ripeness (10%NH
4The CI value) 35ml, viscose glue esterification degree are the cellulose xanthate spinning solution of 46 high esterification degree, high degree of ripeness.Adopt wet moulding, is Y shape with spinning solution through spray orifice, material is a tantalum matter plated film, aperture 40 μ m spinning heads are pressed into by sulfuric acid 50g/l, zinc sulfate 90g/l, sodium sulphate 180g/l forms, in the coagulating bath that bath temperature is 45 ℃, stretch oneself and yawn through shower nozzle then, stretch oneself and yawn between dish, three baths are stretched oneself and yawn, four baths are stretched oneself and yawn and are bounced back, always stretch oneself and yawn than being 300%, and will make fiber through cutting machine, washing, refining processing, wherein NaOH is adopted in desulfurization, its concentration 3g/l, 95 ℃ of temperature, refining bleaching adopts hydrogen peroxide, its concentration 0.10g/l, 65 ℃ of temperature, bake drying obtains the finished product koplon, obtains koplon and does strong 3.5cN/dtex, the hygrometric state elastic modelling quantity is 0.55cN/dtex, and wet is 2.05cN/dtex by force.
Embodiment 4
Adopt the degree of polymerization 750, alpha-cellulose content 96% bamboo pulp, the NaOH of 260g/l solution impregnation alkalization 0.8 hour, the polyalkylene glycol alkyl amine that adds relative alpha-cellulose amount 0.3% during dipping, flood that hemicellulose level is no more than 1.5% in the used alkali lye, generate alkali cellulose, after squeezing, obtained down the alkali cellulose that contains alpha-cellulose 28%, contain alkali 13% in experienced 12 hours, add relative alpha-cellulose amount 40%CS at 45 ℃
2React and generated cellulose xanthate in 6 hours, add the polyoxyethylene fatty amine of relative alpha-cellulose amount 5% with the cellulose xanthate dissolution process and in course of dissolution, obtain chemical cellulose 8.7%, NaOH5.6%, viscosity (falling ball method) 95s, degree of ripeness (10%NH
4The CI value) 33ml, the viscose glue esterification degree is the cellulose xanthate spinning solution of 55 high esterification degree, high degree of ripeness, is tantalum matter plated film through spray orifice for circular, material with spinning solution, aperture 75 μ m spinning heads are pressed into sulfuric acid 90g/l, zinc sulfate 45g/l, sodium sulphate 270g/l forms, in the coagulating bath that bath temperature is 29 ℃, between shower nozzle is stretched oneself and yawn, coiled, stretch oneself and yawn then, two bathe and to stretch oneself and yawn and bounce back, always stretch oneself and yawn than being 298%.And will make fiber through cutting machine, washing, refining processing, sodium sulfite is adopted in wherein concise desulfurization, its concentration 20g/l, 80 ℃ of temperature, clorox is adopted in bleaching, its concentration 0.18g/l, 50 ℃ of temperature, bake drying obtains the finished product koplon afterwards, the doing by force at 4.2cN/dtex of gained koplon, the hygrometric state elastic modelling quantity is 0.49cN/dtex, and wet is 3.0cN/dtex by force.
Embodiment 5
Adopt sugarcane pulp and the degree of polymerization 1200, the a-content of cellulose 96.5% cotton pulp dregs of rice of the degree of polymerization 900, alpha-cellulose content 95.5% to mix, generated alkali cellulose in 4 hours in the alkalization of the NaOH of 300g/l solution impregnation, the polyalkylene glycol alkyl amine that adds relative alpha-cellulose amount 0.3% during dipping, after pulverizing, squeezing descended experienced 16 hours at 20 ℃, obtain the alkali cellulose that contains alpha-cellulose 25.1%, contain alkali 24.9%, with relative alpha-cellulose amount 65%CS
2React 2 hours generation cellulose xanthates, obtain chemical cellulose 8.6% with the cellulose xanthate dissolution process and in dissolving, NaOH9.8%, viscosity (falling ball method) 125s, degree of ripeness (10%NH
4The CI value) 38ml, the viscose glue esterification degree is the cellulose xanthate spinning solution of 65 high esterification degree, high degree of ripeness, is that triangle, material are tantalum matter plated film with spinning solution through spray orifice, aperture 25 μ m spinning heads are pressed into by sulfuric acid 105g/l, zinc sulfate 25g/l, sodium sulphate 90g/l to be formed, in the coagulating bath that bath temperature is 45 ℃, between shower nozzle is stretched oneself and yawn, coiled, stretch oneself and yawn then, two bathe and to stretch oneself and yawn and bounce back, always stretch oneself and yawn than being 50%.And will make fiber through cutting machine, washing, refining processing, sodium sulfite is adopted in wherein concise desulfurization, its concentration 35g/l, 50 ℃ of temperature, clorox is adopted in bleaching, its concentration 3.5g/l, 35 ℃ of temperature, bake drying obtains the finished product koplon afterwards, the dried strong 3.6cN/dtex of gained koplon, the hygrometric state elastic modelling quantity is 0.45cN/dtex, and wet is 2.02cN/dtex by force.
Embodiment 6
Process is with embodiment 1, just in the refining processing process, sodium sulfite, its concentration 5g/l are adopted in desulfurization, 95 ℃ of temperature, adopt hydrogen peroxide bleaching, its concentration 5.3g/l, 35 ℃ of temperature, bake drying obtains the finished product koplon, doing of gained koplon by force at 3.5cN/dtex, the hygrometric state elastic modelling quantity is 0.35cN/dtex, wet is 2.05cN/dtex by force.
Claims (10)
1, a kind of koplon, it is characterized in that its be adopt that the degree of polymerization is 500～1200, the cellulose pulp of alpha-cellulose content 〉=95% through dipping alkalization, squeezing, experienced, yellow, dissolving, wet spinning moulding and the dried strong 3.5～6.0cN/dtex, the hygrometric state elastic modelling quantity that are prepared from after step such as stretching oneself and yawn be 0.35～0.60cN/dtex, to wet be by force the viscose of 2.0～4.5cN/dtex.
2, a kind of koplon as claimed in claim 1 is characterized in that described cellulose pulp is one or more the combination in the cotton pulp dregs of rice, wood pulps, bamboo pulp and the sugarcane pulp.
3, preparation a kind of koplon method as claimed in claim 1, it is characterized in that adopting that the degree of polymerization is 500～1200, the cellulose pulp of alpha-cellulose content 〉=95% is through the NaOH of 200～300g/l solution impregnation alkalization 0.4～4 hour and squeezing, at 20～45 ℃ of alkali cellulose that obtained containing alpha-cellulose 25～35%, NaOH13～25% down in experienced 0.3～16 hour, with the CS of alkali cellulose with relative alpha-cellulose weight 35～65%
2The yellow reaction generated cellulose xanthate in 2～6 hours, and was dissolved to alpha-cellulose 4.5～10.0%, NaOH4.5～10.0%, degree of ripeness 10%NH
4CI value 8.0～38ml, esterification degree are 35～65; Adopt the wet spinning moulding, be pressed into through spray orifice after the coagulating bath spinning of 20～45 ℃ of sulfuric acid 45～105g/l, zinc sulfate 25～90g/l, sodium sulphate 90～290g/l, bath temperatures again after operation such as stretching oneself and yawn, concise and make fiber.
4, a kind of koplon method of preparation as claimed in claim 3 is characterized in that:
The bleeding agent polyalkylene glycol alkyl amine that adds relative alpha-cellulose weight 0.1～0.3% during the alkalization of cellulose pulp dipping, 0.3～5.8% of the relative alpha-cellulose weight of adding denaturant polyoxyethylene fatty amine in the course of dissolution of cellulose xanthate.
5, a kind of koplon method of preparation as claimed in claim 3, it is characterized in that: described stretch oneself and yawn comprise shower nozzle stretch oneself and yawn between stretching oneself and yawn, coiling, three bathe stretch oneself and yawn, four bathe stretch oneself and yawn and bounce back in one or more combination, always stretch oneself and yawn than being 50～600%.
6, a kind of koplon method of preparation as claimed in claim 3 is characterized in that spray orifice is circular, square, triangle, Y shape, spray orifice aperture 25～75 μ m, and the spinnerets material that is provided with spray orifice is that tantalum matter plated film or yellow platinum or glass are made.
7,, it is characterized in that it is 1～25g/l that refining desulfuration adopts NaOH concentration, 50～95 ℃ of temperature as claim 3,4, a kind of koplon method of 5 or 6 described preparations.
8, as claim 3,4, a kind of koplon method of 5 or 6 described preparations, it is characterized in that it is 5～35g/l that refining desulfuration adopts concentration of sodium sulfite, temperature is 50～95 ℃.
9,, it is characterized in that refining bleaching adopts hydrogen peroxide concentration 0.1～5.5g/l, 35～65 ℃ of temperature as claim 3,4, a kind of koplon method of 5 or 6 described preparations.
10,, it is characterized in that refining bleaching adopts clorox concentration 0.1～3.5g/l, 35～55 ℃ of temperature as claim 3,4, a kind of koplon method of 5 or 6 described preparations.
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