CN101130934A - Colored cotton linter pulp used for producing viscose fiber and method for making the same - Google Patents
Colored cotton linter pulp used for producing viscose fiber and method for making the same Download PDFInfo
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- CN101130934A CN101130934A CNA200610068482XA CN200610068482A CN101130934A CN 101130934 A CN101130934 A CN 101130934A CN A200610068482X A CNA200610068482X A CN A200610068482XA CN 200610068482 A CN200610068482 A CN 200610068482A CN 101130934 A CN101130934 A CN 101130934A
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- Prior art keywords
- cotton linter
- pulp
- amount
- viscose
- over dry
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 82
- 229920000297 Rayon Polymers 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 9
- 239000000835 fiber Substances 0.000 title abstract description 11
- 238000004061 bleaching Methods 0.000 claims abstract description 14
- 238000010009 beating Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims description 30
- 238000009835 boiling Methods 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 20
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 8
- 238000005660 chlorination reaction Methods 0.000 claims description 8
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 8
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 8
- 230000009257 reactivity Effects 0.000 claims description 8
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000460 chlorine Substances 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 238000010306 acid treatment Methods 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 239000000049 pigment Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241001343274 Dichrostachys spicata Species 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- -1 and in pulp machine Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 210000000630 fibrocyte Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Abstract
The present invention discloses a colour cotton linters pulp for producing viscose fiber and its preparation method. Said preparation method includes the following steps: preparing raw material, digesting, washing material, beating, removing sand, bleaching acid treatment, water-washing, concentrating, pulp-making and drying.
Description
Technical field
The present invention relates to textile technology field, especially relate to and adopt colored cotton linter preparation to be used to colored cotton linter pulp of producing by viscose and preparation method thereof.
Background technology
In textile industry, to become the widely used textile raw material of people, wherein viscose has accounted for sizable ratio again to chemical fibre in chemical fibre at present.The manufacturing of viscose, at present mostly to be with needlebush and broadleaf be raw material to the method that adopts of people, so this need fell a large amount of timber, the environmental aspect of influence at nature certainly will be destroyed the ecological balance.Because content of cellulose be easy to make highly purified pulp, so cotton linter also is a kind of important source material that most of producers are used for producing cellulose viscose pulp than higher in the cotton linter of cotton.
Color cotton claims the natural colorful cotton again, it is a kind of biological characteristics of cotton itself, promptly in fibrocyte formation and growth course, in its filamentary lumen cell, deposit certain chromatoplast and caused, had the cotton of palm fibre, natural colour such as green, yellow, red, colored color cotton because of its feature of environmental protection that in weaving processing, is had, development in recent years is very rapid, but the colored cotton linter of its byproduct then use at present be not very extensively, only use at present as filler, added value of product is extremely low.Because content of cellulose is also than higher in the cotton linter in color cotton, relatively be suitable for making highly purified pulp, and also not have at present a special production method of color cotton linter being made the cotton pulp dregs of rice that are used to produce viscose, and adopt common cotton linter preparation technology to produce the color cotton pulp dregs of rice that viscose is used, but different on color cotton and the ordinary construction, short velvet fiber contains pigment, so slurry that adopts the process of the color cotton pulp dregs of rice of using with common cotton linter preparation production viscose to produce, it is second-rate, pigment is residual big, cause whiteness lower, and the fine content of first is low, this influenced people utilize colored cotton linter for the raw material production viscose to solve the current viscose problem that there is lack of raw materials, reduced the utilization ratio of colored cotton linter, cause waste.
Summary of the invention
Technical problem to be solved by this invention has provided a kind of colored cotton linter pulp of producing viscose, and not only pigment is residual few for it, and whiteness is good, and the fine content height of first, and containing mixes lacks function admirable.
The present invention also provides a kind of preparation method who is used to produce the colored cotton linter pulp of viscose, by the boiling among the present invention, can effectively remove the pigment that contains in the color cotton linter, make the colored cotton linter pulp whiteness that makes good, and the fine content height of first, contain assorted lacking, be convenient in the production operation of reality, use.
For solving the problems of the technologies described above, the invention provides a kind of colored cotton linter pulp that is used to produce viscose, the dynamic viscosity 10.5 ± 1mpa.s of described pulp, alpha cellulose 〉=92%, ash content≤0.20%, iron branch≤30ppm, whiteness 〉=78%, little dirt count≤100mm
2/ mg inhales base number 〉=500, reactivity worth≤80s, quantitative 700 ± 100g/m
2, moisture 10.0 ± 1.0%.Not only pigment is residual few at the colored cotton linter pulp that originally is used for producing viscose, and whiteness is good, and the fine content height of first, containing assorted fewly, and function admirable can be suitable in the production of viscose preferably.
The present invention also provides a kind of preparation to be used to produce the method for the colored cotton linter pulp of viscose, for adopting colored cotton linter is the cellulose viscose pulp that raw material production is made, comprise and getting the raw materials ready, boiling, wash material, making beating, desanding, bleaching, acid treatment, washing, concentrate, copy slurry, steps such as oven dry, wherein boiling is for to carry out in boiling vessel, employing is in 13～20% of the relative over dry cotton linter of NaOH amount, the relative over dry cotton linter of boiling bleeding agent amount 0.1～15%, the relative over dry cotton linter of hydrogen peroxide amount 0.1～15%, the relative over dry cotton linter of magnesium sulfate amount 0.1～15%, the relative over dry cotton linter of sodium metasilicate amount 0.1～15%, liquor ratio is 1: 2～5,50～120 minutes heating-up times, 165～178 ℃ of boiling maximum temperatures, temperature retention time 120～360 minutes.In digesting technoloy, people can be according to the needs of producing, each data in the suitable adjusting process, and bleeding agent can adopt at least a in non-ionic surface active agent peregal and the anionic surfactant sodium dodecylbenzene sulfonate, to strengthen the emulsification wettability of cooking liquor, improve the effect of boiling; And by sodium metasilicate and magnesium sulfate, pH value that then can balance and stability solution, improve the stability of hydrogen peroxide, hydrogen peroxide can slowly be decomposed and have an effect, and metal ions such as iron in the digestion system, calcium, magnesium, manganese rust are closed in adsorbable Lip river, avoid impurity to be deposited on the fiber, thereby improve the whiteness of cooking effect and cotton pulp.
Bleaching can be adopted chlorination bleaching, and with respect to 2～7% of oven dry stock amount, slurry concentration is 2～6% with effective chlorine dosage, carry out for 8～11 times at 40～60 ℃ of temperature, pH value, and time of chlorinating 40～90 minutes.
And making beating is 5%～10% at slurry concentration, and beating time is to carry out under 30～90 minutes, no little slurry group in the slurry that requires to obtain.
In the present invention, get the raw materials ready and to adopt conventional in the art at present mode, colored cotton linter is screened, and carry out removal of impurities etc. and give preparation, to obtain meeting the colored cotton linter of working condition, slurry after the boiling washed wash material, making beating, desanding, desanding is carried out in desander, purpose is to remove impurity in the slurry and tiny fiber, reach the requirement that meets production technology, the slurry after the bleaching is carried out acid treatment, washing, concentrate, and in pulp machine, slurry is copied slurry, dry afterwards to obtain pulp, and the pulp after the oven dry is being packed, these operations are in current this area the often production process of employing of institute, and the equipment such as screening of the equipment that in whole processing step, is adopted when getting the raw materials ready, boiling vessel in the boiling-off, potcher in the bleaching, and beater, acid treatment equipment concentrates, copy slurry, oven dry, used equipment etc. is current people applied equipment in actual production during packing, there is no special feature; Employed aborning each raw material also be people in daily production the material that often uses.
Among the present invention, handle by under the situation that in cooking liquor, is added with hydrogen peroxide etc. color cotton linter being carried out boiling, and the adjusting materials that can be suitable and the condition of reaction, make in the present invention can to finish and produce viscose with color cotton linter dissolving pulp production with less supplies consumption, effectively remove the pigment that color cotton linter fiber contained, improved the quality of pulp product, and technology is simple, be convenient in the production operation of reality, use, the pulp middle cotton fibre property of producing is good, its every technical indicator can reach: the dynamic viscosity 10.5 ± 1mpa.s of described pulp, alpha cellulose 〉=92%, ash content≤0.20%, iron branch≤30ppm, whiteness 〉=78%, little dirt count≤100mm
2/ mg inhales base number 〉=500, reactivity worth≤80s, quantitative 700 ± 100g/m
2, the excellent properties of moisture 10.0 ± 1.0%.
The specific embodiment
Embodiment 1
To put into boiling vessel through the color cotton linter after the screening and removing impurities of getting the raw materials ready, employing is 14.5% in the relative over dry cotton linter of NaOH amount, auxiliary agent adopts the relative over dry cotton linter of neopelex amount 0.5%, the relative over dry cotton linter of hydrogen peroxide amount 0.45%, the relative over dry cotton linter of magnesium sulfate amount 0.1%, the relative over dry cotton linter of sodium metasilicate amount 0.5%, liquor ratio is dosing in 1: 3, is warmed up to 168 ℃ in 50 minutes, and insulation is 150 minutes, after finishing, boiling bleeds off raffinate, and the slurry after the boiling washed, in beater, the slurry after the boiling is pulled an oar afterwards, require beating consistency 5%, pulled an oar 90 minutes, and in slurry, do not have little slurry group to exist; Again the slurry that obtains is carried out desanding in desander, to remove impurity in the slurry and tiny fiber; When slurry is carried out the chlorination bleaching, adopt the effective chlorine dosage with respect to oven dry stock amount 4%, slurry concentration can under the condition of 50 ℃ of temperature, pH value 10, carry out chlorination 40 minutes 4.5%; Bleed off raffinate then and it is carried out acid treatment, washing and concentrates,, just can in pulp machine, copy slurry afterwards and the oven dry packing gets final product slurry until meeting production standard.
Adopt the pulp performance that the foregoing description obtained to be: dynamic viscosity 10.2mpa.s, alpha cellulose 95.5%, whiteness 79%, ash 0.15%, iron part 25ppm, little dirt count 80mm
2/ mg, reactivity worth 25s inhales base number 595, quantitatively 780g/m
2, moisture 10.1% its excellent performance.
Embodiment 2
The processing step that present embodiment adopted is consistent with embodiment 1, just in technology carry out boiling the time NaOH relative over dry cotton linter amount be 15.5%, the relative over dry cotton linter of neopelex amount 2%, the relative over dry cotton linter of hydrogen peroxide amount 1.5%, the relative over dry cotton linter of magnesium sulfate amount 0.5%, the relative over dry cotton linter of sodium metasilicate amount 2.5%, liquor ratio is dosing in 1: 2, be warmed up to 170 ℃ in 120 minutes, and be incubated 200 minutes; Require beating consistency 8%, pulled an oar 50 minutes, then adopt the effective chlorine dosage with respect to oven dry stock amount 3.5% when bleaching, slurry concentration can under the condition of 48 ℃ of temperature, pH value 10, carry out chlorination 60 minutes 2%.
Adopt the pulp performance that the foregoing description obtained to be: dynamic viscosity 9.8 ± 1mpa.s, alpha cellulose 96.3%, whiteness 80%, ash 0.12%, iron part 15ppm, little dirt count 72mm
2/ mg, reactivity worth 12s inhales base number 658, quantitatively 720g/m
2, moisture 10.5% its excellent performance of its excellent performance.
Embodiment 3
The processing step that present embodiment adopted is consistent with embodiment 1, just in technology carry out boiling the time NaOH relative over dry cotton linter amount be 15.5%, adopt the relative over dry cotton linter of peregal amount 10%, the relative over dry cotton linter of hydrogen peroxide amount 8.5%, the relative over dry cotton linter of magnesium sulfate amount 2%, the relative over dry cotton linter of sodium metasilicate amount 11%, liquor ratio is dosing in 1: 5, be warmed up to 165 ℃ in 100 minutes, and be incubated 120 minutes; Require beating consistency 10%, pulled an oar 30 minutes, then adopt the effective chlorine dosage with respect to oven dry stock amount 2% when bleaching, slurry concentration can under the condition of 60 ℃ of temperature, pH value 8, carry out chlorination 90 minutes 2%.
Adopt the pulp performance that the foregoing description obtained to be: dynamic viscosity 9.5mpa.s, alpha cellulose 94.2%, whiteness 81%, ash 0.10%, iron part 15ppm, little dirt count 55mm
2/ mg, reactivity worth 36s inhales base number 691, quantitatively 640g/m
2, moisture 10.5% its excellent performance of its excellent performance.
Embodiment 4
The processing step that present embodiment adopted is consistent with embodiment 1, just in technology carry out boiling the time NaOH relative over dry cotton linter amount be 20%, adopt the relative over dry cotton linter of neopelex amount 12%, the relative over dry cotton linter of hydrogen peroxide amount 10.5%, the relative over dry cotton linter of magnesium sulfate amount 2.5%, the relative over dry cotton linter of sodium metasilicate amount 12%, liquor ratio is dosing in 1: 5, be warmed up to 165 ℃ in 50 minutes, and be incubated 180 minutes; Require beating consistency 6%, pulled an oar 70 minutes, then adopt the effective chlorine dosage with respect to oven dry stock amount 4% when bleaching, slurry concentration can under the condition of 50 ℃ of temperature, pH value 9, carry out chlorination 50 minutes 3%.
Adopt the pulp performance that the foregoing description obtained to be: dynamic viscosity 10.4mpa.s, alpha cellulose 95.7%, whiteness 82%, ash 0.13%, iron part 25ppm, little dirt count 80mm
2/ mg, reactivity worth 12s inhales base number 625, quantitatively 760g/m
2, moisture 10.3% its excellent performance of its excellent performance.
Embodiment 5
The processing step that present embodiment adopted is consistent with embodiment 1, just in technology carry out boiling the time NaOH relative over dry cotton linter amount be 13%, adopt the relative over dry cotton linter of peregal amount 5%, the relative over dry cotton linter of hydrogen peroxide amount 4%, the relative over dry cotton linter of magnesium sulfate amount 4%, the relative over dry cotton linter of sodium metasilicate amount 5%, liquor ratio is dosing in 1: 4, be warmed up to 178 ℃ in 80 minutes, and be incubated 360 minutes; Require beating consistency 6%, pulled an oar 70 minutes, then adopt the effective chlorine dosage with respect to oven dry stock amount 7% when bleaching, slurry concentration can under the condition of 40 ℃ of temperature, pH value 11, carry out chlorination 40 minutes 6%.
Adopt the pulp performance that the foregoing description obtained to be: dynamic viscosity 95 ± 1mpa.s, alpha cellulose 94.1%, whiteness 82%, ash 0.13%, iron part 25ppm, little dirt count 80mm
2/ mg, reactivity worth 7s inhales base number 625, quantitatively 690g/m
2, moisture 106% its excellent performance of its excellent performance.
Claims (5)
1. be used to produce the colored cotton linter pulp of viscose, it is characterized in that: the dynamic viscosity 10.5 ± 1mpa.s of described pulp, alpha cellulose 〉=92%, ash content≤0.20%, iron branch≤30ppm, whiteness 〉=78%, little dirt count≤100mm
2/ mg inhales base number 〉=500, reactivity worth≤80s, quantitative 700 ± 100g/m
2, moisture 10.0 ± 1.0%.
2. method for preparing the colored cotton linter pulp that is used to produce viscose, for adopting colored cotton linter is the cellulose viscose pulp that raw material production is made, comprise boiling, making beating, steps such as bleaching, it is characterized in that: wherein boiling is for to carry out in boiling vessel, employing is in 13～20% of the relative over dry cotton linter of NaOH amount, the relative over dry cotton linter of boiling bleeding agent amount 0.1～15%, the relative over dry cotton linter of hydrogen peroxide amount 0.1～15%, the relative over dry cotton linter of magnesium sulfate amount 0.1～15%, the relative over dry cotton linter of sodium metasilicate amount 0.1～15%, liquor ratio is 1: 2～5,50～120 minutes heating-up times, 165～178 ℃ of boiling maximum temperatures, temperature retention time 120～360 minutes.
3. a kind of preparation according to claim 2 is used to produce the method for the colored cotton linter pulp of viscose, it is characterized in that: the chlorination bleaching is adopted in bleaching, with effective chlorine dosage with respect to 2～7% of oven dry stock amount, slurry concentration is 2～6%, carry out for 8～11 times at 40～60 ℃ of temperature, pH value, and time of chlorinating 40～90 minutes.
4. a kind of preparation according to claim 2 is used to produce the method for the colored cotton linter pulp of viscose, it is characterized in that: described bleeding agent is at least a in peregal and the neopelex.
5. a kind of preparation according to claim 2 is used to produce the method for the colored cotton linter pulp of viscose, and it is characterized in that: described making beating is 5%～10% at slurry concentration, and beating time is 30～90 minutes, no little slurry group in the slurry that requires to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610068482XA CN101130934A (en) | 2006-08-26 | 2006-08-26 | Colored cotton linter pulp used for producing viscose fiber and method for making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610068482XA CN101130934A (en) | 2006-08-26 | 2006-08-26 | Colored cotton linter pulp used for producing viscose fiber and method for making the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101130934A true CN101130934A (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610068482XA Pending CN101130934A (en) | 2006-08-26 | 2006-08-26 | Colored cotton linter pulp used for producing viscose fiber and method for making the same |
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| CN (1) | CN101130934A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967764A (en) * | 2010-11-05 | 2011-02-09 | 安徽雪龙纤维科技股份有限公司 | High-whiteness cotton pulp product for banknote paper and production method thereof |
| CN102021854A (en) * | 2010-10-19 | 2011-04-20 | 薛润林 | Method for pulping cotton linter |
| CN102031713A (en) * | 2010-10-02 | 2011-04-27 | 山东海龙股份有限公司 | Preparation method of sunflower seed husk pulp |
| CN102182090A (en) * | 2011-03-02 | 2011-09-14 | 山东海龙股份有限公司 | Composite pulp of paper pulp and cotton linter and preparation method thereof |
| CN102251422A (en) * | 2011-05-30 | 2011-11-23 | 四川北方硝化棉股份有限公司 | Method for producing ultrahigh-viscosity refined cotton |
| CN102444044A (en) * | 2010-10-14 | 2012-05-09 | 山东理工大学 | Retinervus luffae fructus pulp for manufacturing viscose fiber and preparation method thereof |
| CN101876154B (en) * | 2009-04-28 | 2013-11-13 | 玛纳斯源一实业有限公司 | Formula and production process of cotton pulp |
| CN108004820A (en) * | 2017-11-14 | 2018-05-08 | 潍坊友容实业有限公司 | The method that the false indigo transplanted using salt-soda soil prepares pulp |
| CN111945454A (en) * | 2020-08-20 | 2020-11-17 | 玛纳斯祥云化纤有限公司 | Method for producing refined cotton from color cotton linters |
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- 2006-08-26 CN CNA200610068482XA patent/CN101130934A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101876154B (en) * | 2009-04-28 | 2013-11-13 | 玛纳斯源一实业有限公司 | Formula and production process of cotton pulp |
| CN102031713A (en) * | 2010-10-02 | 2011-04-27 | 山东海龙股份有限公司 | Preparation method of sunflower seed husk pulp |
| CN102444044A (en) * | 2010-10-14 | 2012-05-09 | 山东理工大学 | Retinervus luffae fructus pulp for manufacturing viscose fiber and preparation method thereof |
| CN102021854A (en) * | 2010-10-19 | 2011-04-20 | 薛润林 | Method for pulping cotton linter |
| CN101967764A (en) * | 2010-11-05 | 2011-02-09 | 安徽雪龙纤维科技股份有限公司 | High-whiteness cotton pulp product for banknote paper and production method thereof |
| CN101967764B (en) * | 2010-11-05 | 2013-04-03 | 安徽雪龙纤维科技股份有限公司 | High-whiteness cotton pulp product for banknote paper and production method thereof |
| CN102182090A (en) * | 2011-03-02 | 2011-09-14 | 山东海龙股份有限公司 | Composite pulp of paper pulp and cotton linter and preparation method thereof |
| CN102182090B (en) * | 2011-03-02 | 2014-07-09 | 山东海龙股份有限公司 | Composite pulp of paper pulp and cotton linter and preparation method thereof |
| CN102251422A (en) * | 2011-05-30 | 2011-11-23 | 四川北方硝化棉股份有限公司 | Method for producing ultrahigh-viscosity refined cotton |
| CN108004820A (en) * | 2017-11-14 | 2018-05-08 | 潍坊友容实业有限公司 | The method that the false indigo transplanted using salt-soda soil prepares pulp |
| CN111945454A (en) * | 2020-08-20 | 2020-11-17 | 玛纳斯祥云化纤有限公司 | Method for producing refined cotton from color cotton linters |
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