CN1706995A - Denatured bamboo pulp viscose short fiber and its production process - Google Patents
Denatured bamboo pulp viscose short fiber and its production process Download PDFInfo
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Abstract
The denatured bamboo pulp viscose short fiber and its production process belongs to the field of textile fiber and its making technology. The fiber product has dry strength not lower than 2.5 CN/dtex and wet strength not lower than 1.20 CN/dtex, and consists of cellulose fiber 86.7-91.75 wt%, water 8-13 wt% and oil 0.15-0.30 wt%. The production process includes soaking bamboo pulp inside soaking tank, yellowing in yellowing machine, acid spinning in spinning mill with acid bath, refining in nap tank, stoving in stoving machine, fine opening and packing. The present invention has the quality indexes superior to those of common short viscose fiber, and the present invention provides new way of producing viscose fiber.
Description
Technical field:
The present invention relates to a kind of denatured bamboo pulp viscose short fiber and production technology thereof of the spinning industry of weaving.
Background technology:
About so far 100 years history of common viscose staple fibre development, its raw material is many based on wood pulp, cotton pulp, the similar natural cotton of its properties of product.Fabric with its processing has good hygroscopicity, gas permeability, comfortable and easy to wear, with common viscose staple fibre is that the fabric of raw material is extensively admitted by the consumer, along with improving constantly of people's living standard, is favored further for the fibre in differentiation of functions such as antibiotic, health care.Antibiotic both at home and abroad now, odourproof fiber and fabric all are to produce the later stage at fiber or fabric, add medicament.This fabric in dress and application process, the influence of physics such as frayed and washing, chemical action, its function can weaken gradually, the somebody also can produce allergic reaction to it, and the intensity of these fibers is lower.
Summary of the invention
The purpose of this invention is to provide a kind of production equipment that adopts import and advanced production technology, by adding denaturant, bamboo pulp is made the bamboo pulp viscose glue short fiber with property in process of production, have than the high-tenacity effect as the fabric of raw material.And feel is refrigerant, and pure spinning is fit to make high-grade underwear and bedding, broad-spectrum denatured bamboo pulp viscose short fiber and production technology thereof.
The technical scheme that realizes the foregoing invention purpose is: doing of finished fiber of the present invention strong, wet by force respectively greater than, equal 2.5CN/dtex, 1.20CN/dtex, fibrous weight percent content is: cellulose fibre 86.7-91.75%, water 8-13%, finish 0.15-0.30%.
The production technology of a, denatured bamboo pulp viscose short fiber, it comprises the following steps: dipping: carry out in treating tank, bamboo pulp is put into this operation, its technical conditions are: temperature: 49 ℃, time: 60 minutes, the concentration of alkali: 220g/L, denaturant V-388 consumption: 0.5% (to the first fibre);
B, squeezing: the raw material after will flooding is pulverized with the squeezer squeezing, and the raw material after pulverizing is experienced, and temperature 49-51 ℃, viscosity is 48mp;
C, yellow: carry out in xanthating machine, its technical conditions are, carbon disulfide is to the fine addition 32% of first, and the yellow time is 24-28 minute, temperature 18-35.8 ℃, add denaturant V-315:0.7-1.0% (to the first fibre) in the dissolving
D, spinning: carry out in spinning machine, specifically technical conditions are,
Acid bath: use the spinning bath acid bath, acid bath temperature: 48-50 ℃, acid bath drop: 6g/L,
Two bathe: temperature 65-70 ℃;
E, drawing-off:
Use the drawing machine drawing-off, total draft: 2.7 times, spinneret draft: 1.6 times;
F, concise:
In the fine hair groove, carry out 99 ℃ of boiling temperatures, 80 ℃ of pickling temperatures, 80 ℃ of one washings, 75 ℃ of alkali cleaning temperature, alkali concn 2.5g/L, 70 ℃ of two washing temperature, three washing pH values 6.0,70 ℃ of oil bath concentration 5.8g/L, temperature, the second step hydrogen peroxide bleaching is arranged in the workshop section that oils, secondary bleaching hydrogen peroxide concentration 1.0g/L, 70 ℃ of temperature, pH value 8.0
The concise time: 10 minutes;
G, oven dry: Tumble Dry, bake out temperature is 60-130 ℃, after the oven dry, with the smart shredding of finished product, packing.
Remarkable advantage of the present invention is that different with common viscose staple fibre performance indications, common viscose staple fibre is pressed the GB/T14463-1993 standard, totally 12 of quality index, and this product is compared with mill run, and every index surpasses common viscose staple fibre.
1.56dtex * 38 millimeters denatured bamboo pulp viscose short fibers belong to the clothes raw material, powerful suitable pure spinning, and its goods yarn, lining price all improve than mill run.Demand constantly increased in recent years, and market is widely arranged especially abroad, and supply falls short of demand, belonged to high value added product.Product of the present invention not only has good hygroscopicity, gas permeability, and is comfortable and easy to wear, because of its cleanliness factor height, sulfur content are lower, meets directly textiles requirement of wearing clothes next to the shin, is suitable for being directly used in making senior underwear, shirt and bedding.The denatured bamboo pulp viscose short fiber that the present invention produces is best in quality, and this launch products obtains extensive favorable comment, has successfully exported to Europe.For high added value clothes industry provides abundant raw material, along with improving constantly of people's living standard, the demand of this senior textile raw material constantly increases, and vast market prospect is at home and abroad arranged.
The specific embodiment
Doing of finished fiber of the present invention strong, wet by force respectively greater than, equal 2.5CN/dtex, 1.20CN/dtex, fibrous weight percent content is: cellulose fibre 86.7-91.75%, water 8-13%, finish 0.15-0.30%.
The effect of three kinds of raw materials is:
Water, fiber are placed the nature moisture regain naturally, impossible over dry, and fiber product contains certain water when being produced can be antistatic.
Finish, lubricated, antistatic property have been processed in weaving, and make fiber have certain friction, and the fortifying fibre spinnability is easy to processing.
Production technology embodiment of the present invention
1, the capital equipment of Cai Yonging sees the following form
| Sequence number | Title | Model | Country origin |
| ??1 | Squeezer | ??AB72″ | Austria Lenzing company |
| ??2 | Xanthating machine | ??SUMA27 | Austria Lenzing company |
| ??3 | The viscose filtration machine | ??KKF18 | Austria Lenzing company |
| ??4 | Spinning machine | ??SM80/800 | Austria Lenzing company |
| ??5 | Drawing machine | Austria Lenzing company | |
| ??6 | Refiner | Austria Lenzing company | |
| ??7 | Dryer | U.S. PROCTOR company | |
| ??8 | 11 imitate flash distillation | Germany Ebner company | |
| ??9 | 4 grades of crystallizers | Germany Ebner company |
2. technological process
The present invention adopts the specific embodiment of the technological process in the technical scheme:
Embodiment one:
(1) dipping: bamboo pulp is sent into hello the dregs of rice, dipping in the treating tank, temperature: 49 ℃, 60 minutes time, the concentration of alkali: 220g/L, denaturant V-388 consumption: 0.5% (to the first fibre).
(2), squeezing is experienced pulverizes with the squeezing of AB72 type squeezer.Raw material after pulverizing is sticking experienced with experienced outlet copper, and 49 ℃ of temperature, viscosity are 48mp;
(3), yellow: carbon disulfide is to the fine addition 32% of first, and the yellow time is 24 minutes, and 18 ℃ of temperature add denaturant 0.7% (to the first fibre) in the dissolving.
(4), spinning: in spinning machine, carry out
Acid bath: one bathes: use the spinning bath acid bath, acid bath. temperature: and 48 ℃, acid bath drop: 6g/L;
Two bathe: 65 ℃ of temperature, sulfuric acid concentration: 55g/L, sodium sulfate concentration: 120g/L.
(5) drawing-off:
Use the drawing machine drawing-off, total draft: 2.7 times, spinneret draft: 1.6 times
(6) concise:
In the fine hair groove, carry out technical conditions: 99 ℃ of boiling temperatures, 80 ℃ of pickling temperatures, 80 ℃ of one washings, 75 ℃ of alkali cleaning temperature, alkali concn 2.5g/L, 70 ℃ of two washing temperature, 70 ℃ of three or four washing temperature, three washing pH values 6.0,70 ℃ of oil bath concentration 5.8g/L, temperature, the second step hydrogen peroxide bleaching is arranged in the workshop section that oils, secondary bleaching hydrogen peroxide concentration 1.0g/L, 70 ℃ of temperature, pH value 8.0, the concise time: 10 minutes;
(7) oven dry: Tumble Dry, bake out temperature is 60 ℃, after the oven dry, with the smart shredding of finished product, packing.
Doing of finished fiber of the present invention is strong, wet to be 2.5CN/dtex, 1.20CN/dtex by force, and fibrous weight percent content is: cellulose fibre 88%, water 11.8%, finish 0.2%.
Embodiment two:
(1) dipping: just bamboo pulp is sent into and is fed the dregs of rice, dipping in the treating tank, temperature: 49 ℃, and 60 minutes time, the concentration of alkali: 220g/L, denaturant V-388 consumption: 0.5% (to the first fibre).
(2), squeezing is experienced: pulverize with the squeezing of AB72 type squeezer, the raw material after the pulverizing is sticking experienced with experienced outlet copper, and 50 ℃ of temperature, viscosity are 48mp;
(3), yellow: technical conditions: carbon disulfide is to the fine addition 32% of first, and the yellow time is 26 minutes, and 25 ℃ of temperature add denaturant 0.9% (to the first fibre) in the dissolving.
(4), spinning: in spinning machine, carry out
Acid bath: one bathes: use the spinning bath acid bath, acid bath. temperature: and 49 ℃, acid bath drop: 6g/L;
Two bathe: 68 ℃ of temperature, sulfuric acid concentration: 55g/L, sodium sulfate concentration: 120g/L.
(5) drawing-off:
Use the drawing machine drawing-off, total draft: 2.7 times, spinneret draft: 1.6 times
(6) concise:
In the fine hair groove, carry out technical conditions: 99 ℃ of boiling temperatures, 80 ℃ of pickling temperatures, 80 ℃ of one washings, 75 ℃ of alkali cleaning temperature, alkali concn 2.5g/L, 70 ℃ of two washing temperature, 70 ℃ of three or four washing temperature, three washing pH values 6.0,70 ℃ of oil bath concentration 5.8g/L, temperature, the second step hydrogen peroxide bleaching is arranged in the workshop section that oils, secondary bleaching hydrogen peroxide concentration 1.0g/L, 70 ℃ of temperature, pH value 8.0, the concise time: 10 minutes;
(7) oven dry: Tumble Dry, bake out temperature is 100 ℃, after the oven dry, with the smart shredding of finished product, packing.
Doing of finished fiber of the present invention is strong, wet to be 2.58CN/dtex, 1.25CN/dtex by force, and fibrous weight percent content is: cellulose fibre 90%, water 9.75%, finish 0.25%.
Embodiment three:
(1) dipping: just bamboo pulp is sent into and is fed the dregs of rice, dipping in the steeper, temperature: 49 ℃, and 60 minutes time, the concentration of alkali: 220g/L, denaturant V-388 consumption: 0.5% (to the first fibre).
(2) squeezing is experienced: pulverize with the squeezing of AB72 type squeezer, the raw material after the pulverizing is sticking experienced with experienced outlet copper, and 51 ℃ of temperature, viscosity are 48mp;
(3), yellow: carbon disulfide is to the fine addition 32% of first, and the yellow time is 28 minutes, and 35 ℃ of temperature add denaturant 1.0% (to the first fibre) in the dissolving.
(4), spinning: in spinning machine, carry out
Acid bath: one bathes: use the spinning bath acid bath, the acid bath temperature: 50 ℃, and acid bath drop: 6g/L;
Two bathe: 70 ℃ of temperature, sulfuric acid concentration: 55g/L, sodium sulfate concentration: 120g/L
(5) drawing-off:
Use the drawing machine drawing-off, total draft: 2.7 times, spinneret draft: 1.6 times
(6) concise:
In the fine hair groove, carry out technical conditions: 99 ℃ of boiling temperatures, 80 ℃ of pickling temperatures, 80 ℃ of one washings, 75 ℃ of alkali cleaning temperature, alkali concn 2.5g/L, 70 ℃ of two washing temperature, 70 ℃ of three or four washing temperature, three washing pH values 6.0,70 ℃ of oil bath concentration 5.8g/L, temperature, the second step hydrogen peroxide bleaching is arranged in the workshop section that oils, secondary bleaching hydrogen peroxide concentration 1.0g/L, 70 ℃ of temperature, pH value 8.0, the concise time: 10 minutes;
(7) oven dry: Tumble Dry, bake out temperature is 130 ℃, after the oven dry, with the smart shredding of finished product, packing.
Doing of finished fiber of the present invention is strong, wet to be 2.53CN/dtex, 1.26CN/dtex by force, and fibrous weight percent content is: cellulose fibre 91.75%, water 8%, finish 0.25%.
The sulfuric acid concentration of the acid bath spinning bath described in the foregoing description is 118g/L, sodium sulfate concentration: 348g/L, and zinc sulfate concentration: 10.1g/L, two bathe the sulfuric acid concentration of spinning bath: 55g/L, sodium sulfate concentration: 120g/L.Described doing is dried fracture strength by force, and wet is wet breaking strength by force.
Embodiment four:
The concrete technological parameter of controlling of production process of the present invention sees the following form:
| The technology title | Unit | Numerical value | Control accuracy |
| The maceration extract temperature | ??℃ | ??48-50 | |
| Impregnation concentration | ??g/l | ??220 | ??±1 |
| V-32 consumption (to the first fibre) | ??％ | ??0.05-0.1 | |
| Alkali is fine to be formed: the fine alkali of first | ??％ ??％ | ??31 ??16 | ??±1 ??±1 |
| Experienced outlet copper is sticking | ??mp | ??55 | ??±5 |
| CS2 addition (to the first fibre) | ??％ | ??32 |
| Spinning glue is formed: the fine alkali of first | ??％ ??％ | ??8.8 ??5.2 | ??±0.1 ??±0.1 |
| The spinning adhesiveness | ??S | ??55 | ??±7 |
| Spinning glue degree of ripeness | ??H | ??16 | ??±1.5 |
| Two bathe: the sulfuric acid concentration temperature | ??g/l ??℃ | ??50-60 ??70 | |
| I road degree of draft | ??％ | ??65-75 | |
| II road degree of draft | ??％ | ??-1 | |
| The NaOH temperature is bathed in desulfurization | ??g/l ??℃ | ??2-3 ??80 | |
| Bleaching bath: NaClO concentration-temperature pH value | ??g/l ??℃ | ??0.6-1.2 ??60 ??9.8 | ??±0.5 |
| Oil bath: oil concentration H 2O 2The concentration-temperature pH value | ??g/l ??g/l ??℃ | ??5-7 ??0.5-1.5 ??70 ??8.0 | ??±0.5 |
| Bao Chong | ??Kg | ??220 | ??±10 |
| Acid bath is formed: sulfate sulfatase sodium zinc sulfate | ??g/l ??g/l ??g/l | ??118 ??350 ??10 | ??±2 ??±10 ??±0.5 |
| The acid bath temperature | ??℃ | ??48-49 | ??±1 |
| The acid bath drop | ??g/l | ??≤7 |
Embodiment five: key problem in technology
Because of to the having relatively high expectations of several finished product important technology indexs such as the intensity of this fiber, cleanliness factor, require to produce and to keep stable.Ripe explained hereafter condition be positioned 96 ingots, 65-75 rice/minute spin speed, both guaranteed the stable of end product quality, reached highly efficient and productive purpose again.Compare with common viscose staple fibre and to have special technology and quality requirement, the present invention has adopted following concrete measure for this reason:
1, this fiber is compared with general fibre, and the present invention improves from production technology in many ways for improving intensity, mainly is to have added the denaturant V-388 that is produced by Sweden in dipping workshop section, has added denaturant V-315 in course of dissolution.Reduced the dynamic viscosity of the viscose glue that bamboo pulp makes, improved the strainability of viscose glue, simultaneously, improved spinning glue degree of ripeness, contain alkali, reduced the spinning bath sulfuric acid concentration, carried high-speed spinning, improved spinning one degree of draft, improved fiberizing, fibre strength improves.Use high-quality bamboo pulp, the strict approaching pulp raw material of degree of polymerization scope that uses is stablized every index of spinning glue, makes the fluctuation of fibrous finished product intensity dwindle 20%, and spinning glue degree of ripeness is brought up to more than 14 by former 12; Secondly, adjusted the major control index of spinning bath, sulfuric acid concentration was brought up to 118 ± 1 grams per liters by 116 ± 2 former grams per liters in the spinning bath.Zinc sulfate concentration was brought up to 10 ± 0.5 grams per liters by 9.8 ± 0.5 former grams per liters.In addition, improved spinning technique one degree of draft greatly, made the condition of molding of fiber obtain improving completely, dried, the wet strength of fiber obviously improve.Doing of finished fiber to be strong, wet to be controlled at 2.5CN/dtex by force respectively, more than the 1.20CN/dtex, satisfied the requirement of spinning fully, has guaranteed the dried wet strength of denatured bamboo pulp fiber, has guaranteed to do the intensity that is possessed of PURE YARN FABRIC.
2, the residual sulphur of GB high-class product requirement product is to improve postorder user yarn product quality below 14mg/100g, and residual sulphur control of the present invention is generally about 6-10mg/100g.For this reason, the present invention at first adjusts fine hair forming tank temperature, makes the more abundant evaporation of fiber carbon disulfide.Newly gone up four acid bath filters, improved the acid bath filtration yield, the important indicator-acid bath transparency integral body that influence the residual sulphur of finished product has improved about 20%, and simultaneously, we hour bring up to 1.3 cubes of/ton silks hour to 1.1 cubes of/ton silks of internal circulating load of desulfurization bath again.The 6-10mg/100g that controlled to the residual sulfur content success of this fiber.
End product quality of the present invention
Outward appearance: no color differnece, color spot, stain, dirt, peculiar smell
Do fracture strength: 2.53CN/dtex
Wet breaking strength: 1.40CN/dtex
Dried elongation at break: 19.3%
Line density deviation ratio: 0.75%
Length variation rate :-1.3%
Overcut fibre: 0.1%
Over-length fibre: 0.04mg/100g
Residual sulfur content: 8.6mg/100g
Fault: 1.3mg/100g
Greasy dirt yellowish fiber: 0mg/100g
Do the strong coefficient of variation: 13.00%
Whiteness: 78.0%
Oil content: 0.25%
Regain: 10.95%
Grade: high-class product.
Claims (3)
1, a kind of denatured bamboo pulp viscose short fiber, it is characterized in that, doing of finished fiber strong, wet by force respectively greater than, equal 2.5CN/dtex, 1.20CN/dtex, fibrous weight percent content is: cellulose fibre 86.7-91.75%, water 8-13%, finish 0.15-0.30%.
2, a kind of production technology of making claims 1 described denatured bamboo pulp viscose short fiber is characterized in that it comprises the following steps:
A, dipping: carry out in treating tank, bamboo pulp is put into this operation, its technical conditions are: temperature: 49 ℃, and the time: 60 minutes, the concentration of alkali: 220g/L, denaturant V-388 consumption: 0.5% (to the first fibre);
B, squeezing: the raw material after will flooding is pulverized with the squeezer squeezing, and the raw material after pulverizing is experienced, and technical conditions are: temperature 49-51 ℃, viscosity is 48mp;
C, yellow: carry out in xanthating machine, its technical conditions are, carbon disulfide is to the fine addition 32% of first, and the yellow time is 24-28 minute, temperature 18-35.8 ℃, add denaturant V-315:0.7-1.0% (to the first fibre) in the dissolving
D, spinning: carry out in spinning machine, specifically technical conditions are,
Acid bath: use the spinning bath acid bath, acid bath temperature: 48-50 ℃, acid bath drop: 6g/L,
Two bathe: temperature 65-70 ℃,
E, drawing-off:
Use the drawing machine drawing-off, total draft: 2.7 times, spinneret draft: 1.6 times
F, concise:
Carry out in the fine hair groove, technical conditions are: 99 ℃ of boiling temperatures, 80 ℃ of pickling temperatures, 80 ℃ of one washings, 75 ℃ of alkali cleaning temperature, alkali concn 2.5g/L, 70 ℃ of two washing temperature, three washing pH values 6.0,70 ℃ of oil bath concentration 5.8g/L, temperature, the second step hydrogen peroxide bleaching is arranged in the workshop section that oils, secondary bleaching hydrogen peroxide concentration 1.0g/L, 70 ℃ of temperature, pH value 8.0
The concise time: 10 minutes;
G, oven dry: Tumble Dry, bake out temperature is 60-130 ℃, after the oven dry, with the smart shredding of finished product, packing.
3, the production technology of denatured bamboo pulp viscose short fiber according to claim 2, the sulfuric acid concentration of described acid bath spinning bath: 118g/L, sodium sulfate concentration: 348g/L, zinc sulfate concentration: 10.1g/L, two bathe the sulfuric acid concentration of spinning bath: 55g/L, sodium sulfate concentration: 120g/L.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736409B (en) * | 2008-11-26 | 2011-10-05 | 上海中纺物产发展有限公司 | Production method of high-strength bamboo pulp viscose glue short fiber |
| CN101736408B (en) * | 2008-11-26 | 2011-11-16 | 上海中纺物产发展有限公司 | Production method of high wet modulus bamboo pulp viscose glue fiber |
| CN102337604A (en) * | 2011-01-30 | 2012-02-01 | 唐山三友集团兴达化纤有限公司 | Method for producing modal fiber from cotton pulp |
| CN103290671A (en) * | 2013-06-17 | 2013-09-11 | 宜宾丝丽雅股份有限公司 | High-brightness viscose staple fiber refining bleaching technology |
| CN103603066A (en) * | 2013-12-02 | 2014-02-26 | 宜宾丝丽雅股份有限公司 | Method for producing heavy-denier mucilage glue flat yarn |
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| JP3448526B2 (en) * | 1999-10-12 | 2003-09-22 | 野村産業株式会社 | Cellulose rayon fiber yarn and fabric using the same |
| JP2003155646A (en) * | 2001-11-20 | 2003-05-30 | Ito:Kk | Knit cloth for underwear |
| CN1399011A (en) * | 2002-08-13 | 2003-02-26 | 河北吉藁化纤有限责任公司 | Bamboo viscose fiber and its production process |
| CN1232684C (en) * | 2004-03-01 | 2005-12-21 | 吉林化纤股份有限公司 | Technology of mfg. functional long fibre with bamboo pulp |
| CN1296533C (en) * | 2004-10-18 | 2007-01-24 | 保定天鹅股份有限公司 | Bamboo pulp regenerated cellulose viscose filament rayon and preparing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101736409B (en) * | 2008-11-26 | 2011-10-05 | 上海中纺物产发展有限公司 | Production method of high-strength bamboo pulp viscose glue short fiber |
| CN101736408B (en) * | 2008-11-26 | 2011-11-16 | 上海中纺物产发展有限公司 | Production method of high wet modulus bamboo pulp viscose glue fiber |
| CN102337604A (en) * | 2011-01-30 | 2012-02-01 | 唐山三友集团兴达化纤有限公司 | Method for producing modal fiber from cotton pulp |
| CN102337604B (en) * | 2011-01-30 | 2013-10-02 | 唐山三友集团兴达化纤有限公司 | Method for producing modal fiber from cotton pulp |
| CN103290671A (en) * | 2013-06-17 | 2013-09-11 | 宜宾丝丽雅股份有限公司 | High-brightness viscose staple fiber refining bleaching technology |
| CN103290671B (en) * | 2013-06-17 | 2015-07-01 | 宜宾丝丽雅股份有限公司 | High-brightness viscose staple fiber refining bleaching technology |
| CN103603066A (en) * | 2013-12-02 | 2014-02-26 | 宜宾丝丽雅股份有限公司 | Method for producing heavy-denier mucilage glue flat yarn |
| CN103603066B (en) * | 2013-12-02 | 2016-04-06 | 宜宾丝丽雅股份有限公司 | For the production of the method for thick dawn viscose glue flat filament |
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| Publication number | Publication date |
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| CN100400724C (en) | 2008-07-09 |
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