CN103850146A - Pulp for viscose and preparation method of pulp - Google Patents
Pulp for viscose and preparation method of pulp Download PDFInfo
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- CN103850146A CN103850146A CN201410114489.5A CN201410114489A CN103850146A CN 103850146 A CN103850146 A CN 103850146A CN 201410114489 A CN201410114489 A CN 201410114489A CN 103850146 A CN103850146 A CN 103850146A
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- 229920000297 Rayon Polymers 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 73
- 238000004061 bleaching Methods 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000010411 cooking Methods 0.000 claims abstract description 6
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 6
- 241000233948 Typha Species 0.000 claims abstract 20
- 238000005406 washing Methods 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 40
- 239000002002 slurry Substances 0.000 claims description 35
- 238000009874 alkali refining Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 18
- 238000010009 beating Methods 0.000 claims description 17
- 238000009835 boiling Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000007844 bleaching agent Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims description 5
- 238000009955 starching Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 238000004537 pulping Methods 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 240000000260 Typha latifolia Species 0.000 description 64
- 229920000742 Cotton Polymers 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- 235000005324 Typha latifolia Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241001343274 Dichrostachys spicata Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 241001518821 Typha orientalis Species 0.000 description 1
- 241000233945 Typhaceae Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
The invention provides pulp for a viscose. The pulp is prepared from cattail as a raw material. A preparation method of the pulp for the viscose comprises the steps of: material preparation; pretreatment; cooking; material washing; pulping; pre-selection and slag removal; concentration; oxygen delignification; alkaline refining; bleaching; post-selection and slag removal; frying pulp and drying to finally obtain the pulp for the viscose, wherein the pulp is prepared from cattail as the raw material. The pulp prepared by the invention contains at least 90% of alpha cellulose, less than or equal to 0.1% of ash, less than or equal to 30mg/kg of iron, less than or equal to 240mm<2>/kg of small-particle dust and less than or equal to 1.0/kg of large-particle dust, and has the whiteness of at least 70% and the polymerization degree of 500+/-30; in addition, cattail is used as the raw material, so that the problem that the raw material of the viscose is insufficient at present is solved.
Description
technical field
The present invention relates to textile technology field, relate in particular to a kind of pulp and preparation method thereof, specifically refer to a kind of viscose pulp and preparation method thereof.
Background technology
Growing along with people's living standard, people are increasing to the demand of textile fabric, viscose is as a kind of textile raw material, ventilative owing to thering is moisture absorption, take comfortable characteristic, its textiles has good moisture absorption regain, comfortable feel, soft dry and comfortable, be well received by consumers, and be used for the pulp material of production of cellulose viscose, mainly with needlebush, leaf wood or velveteen are main raw material, but along with the minimizing of sown areas of cotton, and country obtains more and more stricter to forest conservation policy implementation, produce the raw material sources epitonos of viscose, start to find new cellulose viscose raw materials for production as numb material in order to address this problem people, reed, cattails etc. are produced viscose.
Cattail has another name called the stem or leaf of cattail, common cattail, raupo, high 1 ~ 2m.For Typhaceae, belong to perennial root marsh herbaceous plant, the whole world has 18 kinds, China has 11 kinds, be distributed widely in all parts of the country, be born in moist many water places such as pond, river shoal, canal side, its growth is not subject to zonality condition restriction, the life of natural pond, nationwide or aquatic environment can be grown, and resource is very abundant.Chang Chengcong, growth in flakes, flower unisexuality, meat spike, the raw cylindric ceraceous candle in inflorescence top.Cattail plant is usually used in interspersing pond, gardens, lakeside, constructs water scenery, is natural water body purification plant; Cauline leaf content of cellulose is high, is good paper making raw material; Tender shoots claims common cattail, its delicious, edible; The cattail's spike is commonly used for cut-flower material; Pollen claims again cattail pollen, can people's medicine; The cattail's spike dips in oil or does not dip in oil in order to illumination, and the fine hair on female inflorescence claims cattail suede.Cattail suede fiber is a kind of natural fabric, and it is of many uses, can make the filtering material of pillow wadding material, warming heat-barrier material, buoyant material, oily waste water etc.
Cattail herb is good paper making raw material, and fibre-bearing amount is 35% ~ 60%, and fibre percentage is more than 38.3%; Leaf and leaf sheath can be processed into artificial cotton with alkaline-heating method.Be advisable with harvesting in 7 ~ August, the fresh grass that gather September, moisture content 81.78%, thick protein 3.16%, crude fibre 4.06%; Dry complete stool is moisture 10.20%, hemicellulose 16.6%, cellulose 56.2%.Fiber after coming unstuck can weave a gunnysack and make a rope by twisting the strands together, and its pulling force and quality all exceed straw rope.
Due to cattail aboundresources, content of cellulose is higher, is the good raw material of slurrying, has higher exploitation to be worth.But current people produce the method for viscose take cattail as raw material also few, cause the significant wastage of raw material.
Summary of the invention
Technical problem to be solved by this invention has been to provide a kind of viscose pulp and preparation method thereof, adopt this preparation method to utilize cattail for raw material production cattail pulp, technique is simple, source is abundant, and the quality index of the cattail pulp of producing meets the needs that viscose is produced, and has solved the current viscose problem that there is lack of raw materials.
The invention provides a kind of viscose pulp, be prepared from take cattail as raw material.
Content≤30mg/kg that in prepared pulp, quality≤0.1% of content>=90% of alpha cellulose, ash content, iron divide
,whiteness>=70%, the degree of polymerization are 500 ± 30, the content≤240mm of little dust
2/ kg, content≤1.0 of large dust/kg.
A kind of preparation method who uses pulp take cattail as raw material Making viscose fiber, comprise and get the raw materials ready, preliminary treatment, boiling, wash material, making beating, front selected slagging-off, concentrated, oxygen delignification, alkali refining, bleaching, rear selected slagging-off, papermaking and oven dry, finally make the viscose pulp take cattail as raw material.
As preferably, described boiling is that cattail raw material after treatment alkali steeping is dropped in rotary spherical digester, take the relative cattail quality of NaOH as 15% ~ 40%, raw material and alkali lye mass ratio are 1:2 ~ 7, the sulphidity of cooking liquor is 10% ~ 35%, and the mass fraction that the relative raw material of the green oxygen of digesting assistant is put is 0.05% ~ 1.5%, 40 ~ 80 minutes heating-up times, 90 ~ 180 ℃ of boiling temperatures, temperature retention time 150 ~ 210 minutes.
As preferably, described making beating is to be 5% ~ 10% by making beating slurry volume concentration, and beating time is 25 ~ 70 minutes, in slurry without little slurry group.
As preferably, described concentrated be, in single net concentrator, slurry concentration is concentrated to 4% ~ 10% by 0.2% ~ 1%.
As preferably, described oxygen delignification is to adopt 2% ~ 10% of the relative cattail quality of oxymeter, oxygen pressure 0.6 ± 0.05Mpa, and the delignification time is 30 ~ 65 minutes.
As preferably, described alkali refining is to adopt in 18% ± 0.05% of the relative cattail quality of NaOH, and alkali refining temperature is 98 ± 1 ℃, and the alkali refining time is 30 ~ 60 minutes.
As preferably, described bleaching is to bleach in bleaching tower, when bleaching, adopts in 3% ~ 20% of the relative cattail quality of hydrogen peroxide, and bleaching temperature is 60 ± 5 ℃, and bleaching time is 30 ~ 90 minutes.
As preferably, described in to get the raw materials ready be the raw materials for production by cattail screens, cuts off, cleaning and removal of impurities preparation meet working condition.
As preferably, described preliminary treatment is that the raw materials for production of preparation are carried out to alkali steeping processing.
As preferably, described in to wash material be that the slurry after boiling is got rid of a large amount of black liquor that contain reclaimed in diffuser.
As preferably, described front selected slagging-off is in desander, the impurity that does not meet quality requirement in slurry slightly to be removed.
As preferably, described rear selected slagging-off is further the impurity that does not meet quality requirement in slurry to be removed in desander.
As preferably, described papermaking is, at pulp machine, slurry is formed to pulpboard.
As preferably, described oven dry is, in temperature is the dryer of 120 ~ 160 ℃, pulpboard is dried to processing, finally makes the viscose pulp take cattail as raw material.
The cattail pulp quality index that uses the technical program to prepare can meet the needs that viscose is produced completely, solve the current viscose problem that there is lack of raw materials, on conventional cotton pulp production facility, can complete production, need to not increase new investment of production equipment.
The specific embodiment
embodiment 1:
A kind of viscose pulp, is prepared from take cattail as raw material.
, comprise the following steps by a preparation method for pulp take cattail as raw material Making viscose fiber:
(1) get the raw materials ready: by the raw materials for production " cattail " that cattail screens, cuts off, cleaning and removal of impurities preparation meet working condition;
(2) preliminary treatment: the raw materials for production of preparation are carried out to alkali steeping processing;
(3) boiling: cattail raw material after treatment alkali steeping is dropped in rotary spherical digester, take the relative cattail quality of NaOH as 15%, raw material and alkali lye mass ratio are 1:6, the sulphidity of cooking liquor is 30%, the mass fraction that the relative raw material of the green oxygen of digesting assistant is put is 0.05%, 50 minutes heating-up times, 150 ℃ of boiling temperatures, temperature retention time 170 minutes;
(4) wash material: the slurry after boiling contains a large amount of black liquor, in diffuser, black liquor got rid of and reclaimed;
(5) making beating: making beating slurry volume concentration is 5%, and beating time is 60 minutes, in slurry without little slurry group;
(6) front selected slagging-off: in desander, the impurity that does not meet quality requirement in slightly starching is removed;
(7) concentrated: in single net concentrator, slurry concentration to be concentrated to 4.8% by 0.6%;
(8) oxygen delignification: oxygen delignification adopts 5% of the relative cattail quality of oxymeter, oxygen pressure 0.6Mpa, the delignification time is 40 minutes;
(9) alkali refining: alkali refining adopts in 18% of the relative cattail quality of NaOH, and alkali refining temperature is 98 ℃, and the alkali refining time is 40 minutes;
(10) bleaching: bleach in bleaching tower, adopt in 8% of the relative cattail quality of hydrogen peroxide when bleaching, bleaching temperature is 60 ℃, and bleaching time is 60 minutes;
(11) selected slagging-off after: further the impurity that does not meet quality requirement in slurry is removed in desander;
(12) papermaking: slurry is formed to pulpboard at pulp machine;
(13) dry: in temperature is the dryer of 130 ℃, pulpboard is dried to processing, can obtains the viscose pulp take cattail as raw material.
The quality index of cattail pulp is: alpha cellulose mass content: 91%, and ash content mass content: 0.08%, iron divides: 15mg/kg, the degree of polymerization 520, little dust: 135mm2/kg, large dust: 1.0/kg.
embodiment 2
A kind of viscose pulp, is prepared from take cattail as raw material.
, comprise the following steps by a preparation method for pulp take cattail as raw material Making viscose fiber:
(1) get the raw materials ready: by the raw materials for production " cattail " that cattail screens, cuts off, cleaning and removal of impurities preparation meet working condition;
(2) preliminary treatment: the raw materials for production of preparation are carried out to alkali steeping processing;
(3) boiling: cattail raw material after treatment alkali steeping is dropped in rotary spherical digester, take the relative cattail quality of NaOH as 20%, raw material and alkali lye mass ratio are 1:5, the sulphidity of cooking liquor is 20%, the mass fraction that the relative raw material of the green oxygen of digesting assistant is put is 1.0%, 50 minutes heating-up times, 165 ℃ of boiling temperatures, temperature retention time 180 minutes;
(4) wash material: the slurry after boiling contains a large amount of black liquor, in diffuser, black liquor got rid of and reclaimed;
(5) making beating: making beating slurry volume concentration is 7%, and beating time is 50 minutes, in slurry without little slurry group;
(6) front selected slagging-off: in desander, the impurity that does not meet quality requirement in slightly starching is removed;
(7) concentrated: in single net concentrator, slurry concentration to be concentrated to 5.5% by 0.8%;
(8) oxygen delignification: oxygen delignification adopts 2% of the relative cattail quality of oxymeter, oxygen pressure 0.6Mpa, the delignification time is 30 minutes;
(9) alkali refining: alkali refining adopts in 18% of the relative cattail quality of NaOH, and alkali refining temperature is 98 ℃, and the alkali refining time is 30 minutes;
(10) bleaching: bleach in bleaching tower, adopt in 12% of the relative cattail quality of hydrogen peroxide when bleaching, bleaching temperature is 55 ℃, and bleaching time is 50 minutes;
(11) selected slagging-off after: further the impurity that does not meet quality requirement in slurry is removed in desander;
(12) papermaking: slurry is formed to pulpboard at pulp machine;
(13) dry: in temperature is the dryer of 140 ℃, pulpboard is dried to processing, can obtains the viscose pulp take cattail as raw material.
The quality index of cattail pulp is: alpha cellulose mass content: 93%, and ash content mass content: 0.09%, iron divides: 16mg/kg, the degree of polymerization 510, little dust: 130mm2/kg, large dust: 0.7/kg.
embodiment 3
A kind of viscose pulp, is prepared from take cattail as raw material.
, comprise the following steps by a preparation method for pulp take cattail as raw material Making viscose fiber:
(1) get the raw materials ready: by the raw materials for production " cattail " that cattail screens, cuts off, cleaning and removal of impurities preparation meet working condition;
(2) preliminary treatment: the raw materials for production of preparation are carried out to alkali steeping processing;
(3) boiling: cattail raw material after treatment alkali steeping is dropped in rotary spherical digester, take the relative cattail quality of NaOH as 30%, raw material and alkali lye mass ratio are 1:4, the sulphidity of cooking liquor is 10%, the mass fraction that the relative raw material of the green oxygen of digesting assistant is put is 1.5%, 50 minutes heating-up times, 160 ℃ of boiling temperatures, temperature retention time 200 minutes;
(4) wash material: the slurry after boiling contains a large amount of black liquor, in diffuser, black liquor got rid of and reclaimed;
(5) making beating: making beating slurry volume concentration is 8%, and beating time is 40 minutes, in slurry without little slurry group;
(6) front selected slagging-off: in desander, the impurity that does not meet quality requirement in slightly starching is removed;
(7) concentrated: in single net concentrator, slurry concentration to be concentrated to 8.5% by 1%;
(8) oxygen delignification: oxygen delignification adopts 8% of the relative cattail quality of oxymeter, oxygen pressure 0.6Mpa, the delignification time is 40 minutes;
(9) alkali refining: alkali refining adopts in 18% of the relative cattail quality of NaOH, and alkali refining temperature is 98 ℃, and the alkali refining time is 50 minutes;
(10) bleaching: bleach in bleaching tower, adopt in 16% of the relative cattail quality of hydrogen peroxide when bleaching, bleaching temperature is 60 ℃, and bleaching time is 40 minutes;
(11) selected slagging-off after: further the impurity that does not meet quality requirement in slurry is removed in desander;
(12) papermaking: slurry is formed to pulpboard at pulp machine;
(13) dry: in temperature is the dryer of 160 ℃, pulpboard is dried to processing, can obtains the viscose pulp take cattail as raw material.
The quality index of cattail pulp is: alpha cellulose mass content: 91%, and ash content mass content: 0.07%, iron divides: 19mg/kg, the degree of polymerization 530, little dust: 128mm2/kg, large dust: 0.8/kg.
In the textile industry standard " viscose pulp " (FZ/T 51001-2009) of implementing at present, regulation short rayon fiber Wesy cotton pulp quality index is: alpha cellulose mass content: >=93%, ash content mass content :≤0.1%, iron divides :≤20mg/kg, little dust :≤140mm2/kg, large dust :≤1.5/kg.
In sum, embodiment 1 ~ 3 utilizes cattail pulp quality index prepared by preparation method provided by the present invention to approach cotton pulp Grade A index, can meet the needs that viscose is produced, solve the current viscose problem that there is lack of raw materials, preparation method's technique of simultaneously preparing cattail pulp is simple, supplies consumption is low, the best performance of the cattail pulp that the explained hereafter in embodiment 3 goes out.
In the above-described embodiments, preferred forms of the present invention is described, obviously; under inventive concept of the present invention, still can make a lot of variations, at this; should illustrate, any change of making under inventive concept of the present invention all will fall within the scope of protection of the present invention.
Claims (10)
1. a viscose pulp, is characterized in that: be prepared from take cattail as raw material.
2. pulp according to claim 1, is characterized in that: content≤30mg/kg that in prepared pulp, quality≤0.1% of content>=90% of alpha cellulose, ash content, iron divide
,whiteness>=70%, the degree of polymerization are 500 ± 30, the content≤240mm of little dust
2/ kg, content≤1.0 of large dust/kg.
3. use the preparation method of pulp take cattail as raw material Making viscose fiber for one kind, it is characterized in that: comprise and get the raw materials ready, preliminary treatment, boiling, wash material, making beating, front selected slagging-off, concentrated, oxygen delignification, alkali refining, bleaching, rear selected slagging-off, papermaking and oven dry, finally make the viscose pulp take cattail as raw material.
4. the preparation method who uses pulp take cattail as raw material Making viscose fiber according to claim 3, it is characterized in that: described boiling is that cattail raw material after treatment alkali steeping is dropped in rotary spherical digester, take the relative cattail quality of NaOH as 15% ~ 40%, raw material and alkali lye mass ratio are 1:2 ~ 7, the sulphidity of cooking liquor is 10% ~ 35%, the mass fraction that the relative raw material of the green oxygen of digesting assistant is put is 0.05% ~ 1.5%, 40 ~ 80 minutes heating-up times, 90 ~ 180 ℃ of boiling temperatures, temperature retention time 150 ~ 210 minutes.
According to claim 3 take cattail as raw material Making viscose fiber by the preparation method of pulp, it is characterized in that: described making beating is to be 5% ~ 10% by making beating slurry volume concentration, and beating time is 25 ~ 70 minutes, in starching without little slurry group.
6. the preparation method who uses pulp take cattail as raw material Making viscose fiber according to claim 3, is characterized in that: described concentrating is, in single net concentrator, slurry concentration is concentrated to 4% ~ 10% by 0.2% ~ 1%.
7. the preparation method who uses pulp take cattail as raw material Making viscose fiber according to claim 3, it is characterized in that: described oxygen delignification is to adopt 2% ~ 10% of the relative cattail quality of oxymeter, oxygen pressure 0.6 ± 0.05Mpa, the delignification time is 30 ~ 65 minutes.
8. the preparation method who uses pulp take cattail as raw material Making viscose fiber according to claim 3, it is characterized in that: described alkali refining is to adopt in 18% ± 0.05% of the relative cattail quality of NaOH, alkali refining temperature is 98 ± 1 ℃, and the alkali refining time is 30 ~ 60 minutes.
9. the preparation method who uses pulp take cattail as raw material Making viscose fiber according to claim 3, it is characterized in that: described bleaching is to bleach in bleaching tower, when bleaching, adopt in 3% ~ 20% of the relative cattail quality of hydrogen peroxide, bleaching temperature is 60 ± 5 ℃, and bleaching time is 30 ~ 90 minutes.
10. the preparation method who uses pulp take cattail as raw material Making viscose fiber according to claim 3, is characterized in that:
Described getting the raw materials ready is the raw materials for production by cattail screens, cuts off, cleaning and removal of impurities preparation meet working condition,
Described preliminary treatment is that the raw materials for production of preparation are carried out to alkali steeping processing,
Described washing expects it is that the slurry after boiling is got rid of a large amount of black liquor that contain reclaimed in diffuser,
Described front selected slagging-off is in desander, the impurity that does not meet quality requirement in slightly starching to be removed,
Described rear selected slagging-off is further the impurity that does not meet quality requirement in slurry to be removed in desander,
Described papermaking is, at pulp machine, slurry is formed to pulpboard,
Described oven dry is, in temperature is the dryer of 120 ~ 160 ℃, pulpboard is dried to processing, finally makes the viscose pulp take cattail as raw material.
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| CN201410114489.5A CN103850146A (en) | 2014-03-26 | 2014-03-26 | Pulp for viscose and preparation method of pulp |
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| CN201410114489.5A CN103850146A (en) | 2014-03-26 | 2014-03-26 | Pulp for viscose and preparation method of pulp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887539A (en) * | 2016-04-21 | 2016-08-24 | 邯郸市祥源特种纤维有限公司 | Method and system for producing pure cotton pulp in dry cutting method |
| CN109653009A (en) * | 2017-10-12 | 2019-04-19 | 中国科学院青岛生物能源与过程研究所 | A kind of preparation method by xylose residue production dissolving pulp |
| CN110886123A (en) * | 2019-11-14 | 2020-03-17 | 新疆中泰纺织集团有限公司 | Method for producing viscose fiber by modifying reed natural color paper pulp |
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| CN103498381A (en) * | 2013-09-27 | 2014-01-08 | 恒天海龙股份有限公司 | Pineapple fiber pulp and preparation method thereof |
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| CN1223317A (en) * | 1998-01-16 | 1999-07-21 | 武绍亮 | Pollution-free ecological equilibrium paper-making process |
| CN101736646A (en) * | 2008-11-07 | 2010-06-16 | 中国科学院化学研究所 | Preparation method of reed or straw cellulose pulp |
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| CN105887539A (en) * | 2016-04-21 | 2016-08-24 | 邯郸市祥源特种纤维有限公司 | Method and system for producing pure cotton pulp in dry cutting method |
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| CN110886123B (en) * | 2019-11-14 | 2021-09-21 | 新疆中泰纺织集团有限公司 | Method for producing viscose fiber by modifying reed natural color paper pulp |
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Application publication date: 20140611 |