CN1399011A - Bamboo viscose fiber and its production process - Google Patents
Bamboo viscose fiber and its production process Download PDFInfo
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- CN1399011A CN1399011A CN 02130026 CN02130026A CN1399011A CN 1399011 A CN1399011 A CN 1399011A CN 02130026 CN02130026 CN 02130026 CN 02130026 A CN02130026 A CN 02130026A CN 1399011 A CN1399011 A CN 1399011A
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Abstract
The bamboo viscose fiber made of bamboo pulp bas dry break strength greater than 1.90 cN/dtex, wet break strength greater than 1.0 cN/dtex, and dry elongation at break greater than 16.0 %. The technological process of producing the bamboo viscose fiber includes preparing bamboo material, digesting, sectional bleaching, acid treatment, making pulp, soaking, yellowing, post-dissolving, defoaming, spinning, bundling, refining, stoving, and packing. The fiber and fabric of the present invention has excellent hygroscopicity, and is comfortable.
Description
Technical field
The present invention relates to a kind of bamboo wood that utilizes and produce viscose and technology thereof.
Technical background
Viscose is as a kind of textile raw material; it is raw material that cotton linter, timber are all adopted in its traditional production; handle through the series of process method, make regenerated celulose fibre, but along with the minimizing of sown areas of cotton; country carries out stricter to forest conservation; the shortage of world's cotton linter, timber appears, and the price height, production cost sharply rises; new natural textile raw material is explored in research and development, and is imperative.
Summary of the invention
It is raw material that technical problem to be solved by this invention provides the resourceful bamboo of a kind of employing, and wood substituted by bamboo for cotton, utilizes the viscose and the production Technology thereof of bamboo wood production with bamboo.
Bamboo viscose fiber is a kind of viscose of being made by bamboo pulp in the technical solution adopted in the present invention, its dried fracture strength: 〉=1.90cN/dtex; Wet breaking strength: 〉=1.0cN/dtex; Dried elongation at break: 〉=16.0%, line density deviation ratio: ± 7.00%; Length variation rate: ± 7.0%; Overcut fibre :≤1.0%; Over-length fibre :≤20.0mg/100g; Residual sulfur content :≤20.0mg/100g; Fault :≤12mg/100g.
Technological process in the technical solution adopted in the present invention is: bamboo wood is got the raw materials ready, blank, screen, wash material, boiling, wash material, desanding, concentrate, multistage bleaching, wash material, acid treatment, wash material, desanding, concentrate, copy slurry (bamboo pulp), dipping, squeezing, pulverizing, experienced, yellow, back dissolving, filtration, deaeration, filtration, spinning, drawing-off, boundling, cut-out, concise, oven dry, pack (bamboo fibre).In the above-mentioned technological process, described boiling is carried out in boiling vessel, adopt sulphite process (sodium base) boiling, the technical conditions of boiling are: total acid＞4%, combined acid: 1.0-3.0%, boiling maximum temperature: 165 ℃, the secondary insulation: holding temperature: 120-140 ℃ for the first time, temperature retention time: 60-120min, holding temperature: 140-165 ℃ for the second time, temperature retention time: 120-240min, fluid temperature: 60-90 ℃.The degree of polymerization 〉=620, first fibre 〉=97%.Described multistage bleaching carries out in bleaching machine, and technical conditions are: I section bleaching: chlorine dosage: to oven dry stock amount 2-5%, and temperature 45-55 ℃, bleaching alkalinity≤250g/m
3, bleaching time 120-240min.II section bleaching: acid treatment is with acid amount 1-2% (to the oven dry stock amount), and time 20-50min is washed to and contains below the sour 0.Sg/L.III section bleaching: bleaching chlorine dosage: 1-3% (to the oven dry stock amount), temperature 30-40 ℃, bleaching alkalinity≤150g/m
3, bleaching time 60-180min is washed to residual acid≤0.5g/L.Bleaching Quality requires: whiteness 〉=76%, the degree of polymerization 〉=450, alpha cellulose 〉=93%.
Dipping described in the technology of the present invention is to carry out in treating tank, concrete process conditions: dipping temperature: 50-60 ℃, and dip time 15-40min, the concentration of alkali: 240-260g/L.
Concise described in the technology of the present invention carries out wash water temperature a: 30-60 ℃ in scouring machine; Alkali cleaning temperature: 60-80 ℃; Alkali concn: 4-8g/L; Two wash water temperature: 40-60 ℃; Acid concentration: 0.6-1.8g/L; Pickling temperature: normal temperature; Three wash water temperature: 40-60 ℃; Last oil concentration: 5-10g/L; Last oil temperature: normal temperature; Hydrogen peroxide bleaching concentration: 0.05-0.15%, bleaching temperature: normal temperature, concise time: 10-15 minute.
Good effect of the present invention is as follows:
The advantage of technology of the present invention is many-sided, and at first, China's bamboo resource reserves are abundant, fast growing and high yield, and once plantation is put things right once and for all, and can reduce production costs with the fiber and the fabric of this bamboo wood production, and a good approach is provided for making rational use of resources; Secondly, utilize the fiber of bamboo wood material production and fabric that good hygroscopicity is arranged, soft, smooth, wear comfortable.Natural in pursuit, back to nature, is subjected to consumers in general's favor deeply at today of green consumption.
The specific embodiment
1, bamboo wood is got the raw materials ready, blank, is screened, washes material:
Go rotten, rotten bamboo wood content is less than 5.0% bamboo wood and shreds through stock-cutter.Blank specification: long 20-40mm.
Chopping back tablet is used hot water injection's tablet, water temperature: 60-80 ℃ after waving sieve or jumping the sieve screening.Time 10-20 minute, to guarantee contained silt in the tablet, bamboo bits etc. fully drenched.
2, material is washed in boiling:
Boiling is carried out in boiling vessel, and the boiling technology condition is: total acid＞4% (to the oven dry stock amount), be incubated 2 times, and holding temperature is 120-140 ℃ for the first time, temperature retention time 60-120min, holding temperature: 140-165 ℃ for the second time, temperature retention time: 120-240min; Fluid temperature: 60-90 ℃, batch turning after the boiling, wash material, alpha cellulose 〉=97%, the degree of polymerization 〉=620.
3, multistage bleaching, wash material:
Multistage bleaching carries out in bleaching machine, and technical conditions are: the bleaching of I section: chlorine dosage temperature 45-55 ℃, is bleached alkalinity≤250g/m to oven dry stock amount 2-5%
3, bleaching time 120-240min.II section bleaching: acid treatment is with acid amount 1-2% (to the oven dry stock amount), and time 20-50min is washed to and contains below the sour 0.5g/L.III section bleaching: bleaching chlorine dosage (to the oven dry stock amount) 1-3%, temperature: 30-40 ℃, bleaching alkalinity≤150g/m
3, bleaching time 60-180min is washed till residual acid≤0.5g/L.Bleaching Quality requires: whiteness 〉=76%, the degree of polymerization 〉=450, alpha cellulose 〉=93%.
4, desanding, concentrate, copy slurry:
Carry out desanding in desander, desanding is after thickener makes concentration of slurry is 3.0-3.5%; Through after desanding, concentrate the back and in pulp machine, manufacture paper with pulp.
5, dipping: be immersed in the treating tank and carry out.
Concrete process conditions: dipping temperature 50-60 ℃, dip time 15-40min, the concentration of alkali: 240-260g/L.
6, squeezing, pulverizing:
Squeezing, pulverizing are carried out in squeezer, concrete technical conditions: the fine 29-35% of first, alkali cellulose contains alkali 14-18%.
7, experienced:
Experiencedly in experienced drum, carry out experienced viscosity 30-42 second, experienced temperature 16-26 ℃.
8, yellow:
Yellow is carried out in xanthating machine, concrete technical conditions: carbon disulfide addition: to the 30-35% of alkali cellulose weight, and yellow time 90-130min, initial temperature 20-25 ℃, warm 30-40 ℃ eventually.
9, back dissolving: solution temperature 20-25 ℃, dissolution time: 100-140min.
10, deaeration, filtration: deaeration is carried out in the deaeration jar, filters and carries out in filter.
11, spinning:
Spinning is carried out in spinning machine, and concrete technical conditions are: acid bath liquid is formed: sulfuric acid: 70-130g/L, sodium sulphate: 200-340g/L, zinc sulfate: 7.0-12.0g/L; Acid bath drop:＜7g/L; Temperature: 45-55 ℃.
12, drawing-off, boundling:
Carry out in machine cluster: total draft: 1.9-2.2 doubly; Spinneret draft: 1.0 times.
13, concise:
Concisely in scouring machine, carry out wash water temperature a: 30-60 ℃; Alkali cleaning temperature: 60-80 ℃; Alkali concn: 4-8g/L; Two wash water temperature: 40-60 ℃; Acid concentration: 0.6-1.8g/L; Pickling temperature: normal temperature; Three wash water temperature: 40-60 ℃; Last oil concentration: 5-10g/L; Last oil temperature: normal temperature; Hydrogen peroxide bleaching concentration: 0.05-0.15%, bleaching temperature: normal temperature, concise time: 10-15 minute.
13, oven dry, packing:
In dryer, carry out bake out temperature 70-130 ℃.
Below in conjunction with example technology of the present invention is done to discuss in detail:
Embodiment one
1, bamboo wood is got the raw materials ready: specification: 20-40mm, 70 ℃ of washing temperature, 15 minutes washing time.
2, boiling:
Total acid: 5.0%, combined acid: 1.0%, holding temperature for the first time: 140 ℃, temperature retention time: 60min for the first time, holding temperature for the second time: 165 ℃, temperature retention time: 120min for the second time, 165 ℃ of holding temperatures, fluid temperature: 70 ℃, the degree of polymerization 700, first fibre 97.0%
3, desanding, concentrated: starching dense after desanding concentrates is 3.5%.
4, bleaching:
The I section: chlorine dosage is to oven dry stock amount 5%, 55 ℃ of temperature, time: 120min, bleaching alkalinity: 250g/m
3
II section: acid treatment: with acid amount (to oven dry stock) 2%, time: 20min is washed to and contains acid:
0.5g/L。
The III section: chlorine dosage is to oven dry stock amount 3%, and temperature: 40 ℃, bleaching contains alkali 150g/m
3, 180 minutes time, be washed to residual acid: 0.5g/L, whiteness: 78%.The first fibre: 94.5%, the degree of polymerization: 670.
5, dipping:
Temperature: 50 ℃, time: 40min, the concentration of alkali: 260g/L, LV-3 modification (by the fine weight of first): 0.5%.
6, experienced:
Temperature: 26 ℃, viscosity: 30 seconds.
7, yellow:
Carbon disulfide addition (to alkali cellulose weight): 30%, yellow time: 130min, initial temperature: 25 ℃, warm eventually: 35 ℃.
8, back dissolving:
Solution temperature: 20 ℃, dissolution time: 140min.
9, spinning:
Viscose glue after deaeration is filtered carries out spinning in spinning machine.
Sulfuric acid: 70g/L, sodium sulphate: 200g/L, zinc sulfate: 7g/L, temperature: 45 ℃, acid bath drop: 5g/L.
10, drawing-off, boundling:
Total draft: 1.9 times, spinneret draft: 1.0 times.
11, concise:
One wash water temperature: 45 ℃, the alkali cleaning temperature: 70 ℃, alkali concn: 6g/L, two wash water temperature: 50 ℃, acid concentration: 1.0g/L, pickling temperature: normal temperature, three wash water temperature: 60 ℃, last oil concentration: 7g/L, last oil temperature: normal temperature.Hydrogen peroxide bleaching concentration 0.05%, normal temperature, concise time: 15 minutes.
12, oven dry: 70-130 ℃.
13, end product quality:
Do fracture strength: 2.25cN/dtex,
Wet breaking strength: 1.33cN/dtex,
Dried elongation at break: 24.1%,
The line density deviation ratio :+0.61%,
The length variation rate :-5.6%,
Overcut fibre: 0.2%,
Over-length fibre: 3.2mg/100g,
Residual sulfur content: 8.0mg/100g,
Fault: 3.4mg/100g,
Greasy dirt yellowish fiber: 0.1mg/100g,
Do the strong coefficient of variation: 12.51%,
Whiteness: 76.2%,
Oil content: 0.15%,
Regain: 11.93%,
Grade: Grade A.
Embodiment two:
1, bamboo wood is got the raw materials ready: specification 20-40mm, 60 ℃ of washing temperature, 20 minutes washing time.
2, boiling:
Total acid: 7%, combined acid: 2.0%, holding temperature for the first time: 135 ℃, temperature retention time: 80min for the first time, holding temperature for the second time: 155 ℃, temperature retention time: 180min for the second time, 150 ℃ of holding temperatures, fluid temperature: 80 ℃, the degree of polymerization: 750, first fibre 97.2%.
3, desanding, concentrated: starching dense after desanding concentrates is 3.2%.
4, bleaching:
The I section: chlorine dosage is to oven dry stock amount 4%, 48 ℃ of temperature, time: 240min, bleaching alkalinity: 220g/m
3
II section: acid treatment: with acid amount to the oven dry stock amount: 1.5%, time: 40min is washed to and contains acid: 0.3g/L.
The III section: chlorine dosage is to oven dry stock amount 1%, and temperature: 30 ℃, bleaching contains alkali 130g/m
3, 60 minutes time, be washed till residual acid: 0.4g/L, whiteness: 77%.The degree of polymerization: 760, first fibre: 93.1%.
5, dipping:
Temperature: 55 ℃, time: 20min, the concentration of alkali: 240g/L.
6, experienced:
Temperature: 20 ℃, viscosity: 37 seconds.
7, yellow:
Carbon disulfide addition (to alkali cellulose weight): 32%, yellow time: 110min, initial temperature: 22 ℃, warm eventually: 40 ℃.
8, back dissolving:
Solution temperature: 23 ℃, dissolution time: 120min.
9, spinning:
Viscose glue after deaeration is filtered carries out spinning in spinning machine.
Sulfuric acid: 130g/L, sodium sulphate: 340g/L, zinc sulfate: 12g/L, temperature: 55 ℃, acid bath drop: 7g/L.
10, drawing-off, boundling:
Total draft: 2.0 times, spinneret draft: 1.0 times.
11, concise:
One wash water temperature: 60 ℃, the alkali cleaning temperature: 80 ℃, alkali concn: 8g/L, two wash water temperature: 60 ℃, acid concentration: 1.8g/L, pickling temperature: normal temperature, three wash water temperature: 50 ℃, last oil concentration: 10g/L, last oil temperature: normal temperature.Hydrogen peroxide bleaching concentration 0.10%, normal temperature, concise time: 12 minutes.
12, oven dry: 70-130 ℃
13, end product quality:
Do fracture strength: 2.22cN/dtex,
Wet breaking strength: 1.50cN/dtex,
Dried elongation at break: 23.6%,
The line density deviation ratio :+0.77%,
The length variation rate :-2.7%,
Overcut fibre: 0.3%,
Over-length fibre: 3.0mg/100g,
Residual sulfur content: 8.7mg/100g,
Fault: 2.1mg/100g,
Greasy dirt yellowish fiber: 0mg/100g,
Do the strong coefficient of variation: 13.45%,
Whiteness: 77.4%,
Oil content: 0.11%,
Regain: 12.10%,
Grade: Grade A.
Embodiment three:
1, bamboo wood is got the raw materials ready: specification 20-40mm, 80 ℃ of washing temperature, washing time: 10 minutes.
2, boiling:
Total acid: 8%, combined acid: 3.0%, holding temperature for the first time: 120 ℃, temperature retention time: 120min, holding temperature for the second time for the first time: 140 ℃, temperature retention time: 240min for the second time, holding temperature: 140 ℃, fluid temperature: 90 ℃.
3, desanding, concentrated: starching dense after desanding concentrates is 3.0%.
4, bleaching:
The I section: chlorine dosage is to oven dry stock amount 2%, 45 ℃ of temperature, time: 180min, bleaching alkalinity: 200g/m
3
II section: acid treatment: to oven dry stock amount 1%, time: 50min is washed to and contains acid with acid amount:
0.25g/L。
The III section: chlorine dosage is to oven dry stock amount 2%, and temperature: 35 ℃, bleaching contains alkali 140g/m
3, 120 minutes time, be washed to residual acid: 0.5g/L, whiteness: 76%, the degree of polymerization: 626, first fibre: 96%.
5, dipping:
Temperature: 60 ℃, time: 15min, the concentration of alkali: 250g/L.
6, experienced:
Temperature: 16 ℃, viscosity: 42 seconds.
7, yellow:
Carbon disulfide addition (to alkali cellulose weight): 35%, yellow time: 90min, initial temperature: 20 ℃, warm eventually: 30 ℃.
8, back dissolving:
Solution temperature: 25 ℃, dissolution time: 100min.
9, spinning:
Viscose glue after deaeration is filtered carries out spinning in spinning machine.
Sulfuric acid: 100g/L, sodium sulphate: 250g/L, zinc sulfate: 10g/L, temperature: 50 ℃, acid bath drop: 6g/L.
10, drawing-off, boundling:
Total draft: 2.2 times, spinneret draft: 1.0 times.
11, concise:
One wash water temperature: 30 ℃, the alkali cleaning temperature: 60 ℃, alkali concn: 4g/L, two wash water temperature: 40 ℃, acid concentration: 0.6g/L, pickling temperature: normal temperature, three wash water temperature: 40 ℃, last oil concentration: 5g/L, last oil temperature: normal temperature.Hydrogen peroxide bleaching concentration: 0.15%, normal temperature, concise time: 10 minutes.
12, oven dry: 70-130 ℃.
13, end product quality:
Do fracture strength: 2.24cN/dtex, wet breaking strength: 1.41cN/dtex, dried elongation at break: 24.7%, the line density deviation ratio :+0.95%, the length variation rate :-3.0%, overcut fibre: 0.4%, over-length fibre: 2.8mg/100g, residual sulfur content: 9.6mg/100g, fault: 2.3mg/100g, greasy dirt yellowish fiber: 0mg/100g, do the strong coefficient of variation: 15.20%, whiteness: 76.2%, oil content: 0.12%, regain: 12.90%, grade: Grade A.
Claims (4)
1, a kind of bamboo viscose fiber is characterized in that it is a kind of viscose of being made by bamboo pulp, its dried fracture strength: 〉=1.90cN/dtex; Wet breaking strength: 〉=1.0cN/dtex; Dried elongation at break: 〉=16.0%, line density deviation ratio: ± 7.00%; Length variation rate: ± 7.0%; Overcut fibre :≤1.0%; Over-length fibre :≤20.0mg/100g; Residual sulfur content :≤20.0mg/100g; Fault :≤12mg/100g.
2, a kind of production technology of bamboo viscose fiber is characterized in that its technological process is: bamboo wood is got the raw materials ready, blank, screen, wash material, boiling, wash material, desanding, concentrate, multistage bleaching, wash material, acid treatment, wash material, desanding, concentrate, copy slurry (bamboo pulp), dipping, squeezing, pulverizing, experienced, yellow, back dissolving, filtration, deaeration, filtration, spinning, drawing-off, boundling, cut-out, concise, oven dry, pack (bamboo fibre).In the above-mentioned technological process, described boiling is carried out in boiling vessel, adopt sulphite process (sodium base) boiling, the technical conditions of boiling are: total acid＞4%, combined acid: 1.0-3.0%, boiling maximum temperature: 165 ℃, the secondary insulation: holding temperature: 120-140 ℃ for the first time, temperature retention time: 60-120min, holding temperature: 140-165 ℃ for the second time, temperature retention time: 120-240min, fluid temperature: 60-90 ℃.The degree of polymerization 〉=620, first fibre 〉=97%.Described multistage bleaching carries out in bleaching machine, and technical conditions are: I section bleaching: chlorine dosage: to oven dry stock amount 2-5%, and temperature 45-55 ℃, bleaching alkalinity≤250g/m
3, bleaching time 120-240min.II section bleaching: acid treatment is with acid amount 1-2% (to the oven dry stock amount), and time 20-50min is washed to and contains below the sour 0.5g/L.III section bleaching: bleaching chlorine dosage: 1-3% (to the oven dry stock amount), temperature 30-40 ℃, bleaching alkalinity≤150g/m
3, bleaching time 60-180min is washed to residual acid≤0.5g/L.Bleaching Quality requires: whiteness 〉=76%, the degree of polymerization 〉=450, alpha cellulose 〉=93%.
3, the production technology of a kind of bamboo viscose fiber according to claim 2 is characterized in that described dipping is to carry out in treating tank, concrete process conditions: dipping temperature: 50-60 ℃, and dip time 15-40min, the concentration of alkali: 240-260g/L.
4,, it is characterized in that describedly concisely in scouring machine, carrying out wash water temperature a: 30-60 ℃ according to the production technology of claim 2 or 3 described a kind of bamboo viscose fibers; Alkali cleaning temperature: 60-80 ℃; Alkali concn: 4-8g/L; Two wash water temperature: 40-60 ℃; Acid concentration: 0.6-1.8g/L; Pickling temperature: normal temperature; Three wash water temperature: 40-60 ℃; Last oil concentration: 5-10g/L; Last oil temperature: normal temperature; Hydrogen peroxide bleaching concentration: 0.05-0.15%, bleaching temperature: normal temperature, concise time: 10-15 minute.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130026 CN1399011A (en) | 2002-08-13 | 2002-08-13 | Bamboo viscose fiber and its production process |
| CNB031284965A CN1194119C (en) | 2002-05-14 | 2003-05-08 | Bamboo Viscose fibre and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130026 CN1399011A (en) | 2002-08-13 | 2002-08-13 | Bamboo viscose fiber and its production process |
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| CN1399011A true CN1399011A (en) | 2003-02-26 |
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ID=4746374
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| CN 02130026 Pending CN1399011A (en) | 2002-05-14 | 2002-08-13 | Bamboo viscose fiber and its production process |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN100400724C (en) * | 2005-05-20 | 2008-07-09 | 唐山三友集团化纤有限公司 | Denatured bamboo pulp viscose short fiber and its production process |
| CN100417764C (en) * | 2006-09-08 | 2008-09-10 | 唐山三友集团化纤有限公司 | Ultrashort viscose fiber in paper making, and manufacturing method |
| CN100422396C (en) * | 2003-11-25 | 2008-10-01 | 长兴伟尔德进出口有限公司 | Method for making bamboo fiber |
| CN1974921B (en) * | 2006-12-18 | 2010-10-13 | 河北吉藁化纤有限责任公司 | Method for producing bamboo pomace |
| CN101880981A (en) * | 2010-07-09 | 2010-11-10 | 延边石岘白麓纸业股份有限公司 | Method for making pulp |
| CN102101890A (en) * | 2010-12-28 | 2011-06-22 | 成都丽雅纤维股份有限公司 | Post dissolution process of viscose |
| CN101724931B (en) * | 2008-10-27 | 2012-09-26 | 河北吉藁化纤有限责任公司 | Bamboo pulp flame-retardant fiber and preparation method thereof |
| US9061482B2 (en) | 2005-01-21 | 2015-06-23 | Gfh Enterprises, Inc. | Flexible chair pad |
| CN109234826A (en) * | 2018-09-20 | 2019-01-18 | 武汉纺织大学 | A method of Lyocell fibers are prepared by raw material of bamboo |
| CN110607599A (en) * | 2019-10-16 | 2019-12-24 | 湖南俏妃卫生用品有限公司 | Preparation method of original ecological bamboo fiber knitted fabric for sanitary towel surface layer |
| CN115074986A (en) * | 2022-06-14 | 2022-09-20 | 杭州可靠护理用品股份有限公司 | Bleaching method of bamboo pulp fibers suitable for paper diaper absorber |
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2002
- 2002-08-13 CN CN 02130026 patent/CN1399011A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422396C (en) * | 2003-11-25 | 2008-10-01 | 长兴伟尔德进出口有限公司 | Method for making bamboo fiber |
| 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 |
| US9061482B2 (en) | 2005-01-21 | 2015-06-23 | Gfh Enterprises, Inc. | Flexible chair pad |
| CN100400724C (en) * | 2005-05-20 | 2008-07-09 | 唐山三友集团化纤有限公司 | Denatured bamboo pulp viscose short fiber and its production process |
| CN100417764C (en) * | 2006-09-08 | 2008-09-10 | 唐山三友集团化纤有限公司 | Ultrashort viscose fiber in paper making, and manufacturing method |
| CN1974921B (en) * | 2006-12-18 | 2010-10-13 | 河北吉藁化纤有限责任公司 | Method for producing bamboo pomace |
| CN101724931B (en) * | 2008-10-27 | 2012-09-26 | 河北吉藁化纤有限责任公司 | Bamboo pulp flame-retardant fiber and preparation method thereof |
| CN101880981A (en) * | 2010-07-09 | 2010-11-10 | 延边石岘白麓纸业股份有限公司 | Method for making pulp |
| CN101880981B (en) * | 2010-07-09 | 2013-11-27 | 延边石岘白麓纸业股份有限公司 | Method for making pulp |
| CN102101890A (en) * | 2010-12-28 | 2011-06-22 | 成都丽雅纤维股份有限公司 | Post dissolution process of viscose |
| CN109234826A (en) * | 2018-09-20 | 2019-01-18 | 武汉纺织大学 | A method of Lyocell fibers are prepared by raw material of bamboo |
| CN110607599A (en) * | 2019-10-16 | 2019-12-24 | 湖南俏妃卫生用品有限公司 | Preparation method of original ecological bamboo fiber knitted fabric for sanitary towel surface layer |
| CN115074986A (en) * | 2022-06-14 | 2022-09-20 | 杭州可靠护理用品股份有限公司 | Bleaching method of bamboo pulp fibers suitable for paper diaper absorber |
| CN115074986B (en) * | 2022-06-14 | 2023-11-14 | 杭州可靠护理用品股份有限公司 | Bleaching method of bamboo pulp fiber suitable for paper diaper absorber |
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