CN101130935A - Low-viscosity cotton pulp used for producing cellulose ether-esters and method for making the same - Google Patents
Low-viscosity cotton pulp used for producing cellulose ether-esters and method for making the same Download PDFInfo
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- CN101130935A CN101130935A CNA2006100684834A CN200610068483A CN101130935A CN 101130935 A CN101130935 A CN 101130935A CN A2006100684834 A CNA2006100684834 A CN A2006100684834A CN 200610068483 A CN200610068483 A CN 200610068483A CN 101130935 A CN101130935 A CN 101130935A
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- cotton linter
- cotton
- over dry
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 82
- 229920002678 cellulose Polymers 0.000 title claims description 14
- 239000001913 cellulose Substances 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 10
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000004061 bleaching Methods 0.000 claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims description 30
- 238000009835 boiling Methods 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-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 18
- 239000000835 fiber Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004115 Sodium Silicate Substances 0.000 claims description 9
- 238000005660 chlorination reaction Methods 0.000 claims description 9
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 9
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 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
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 3
- 229920003086 cellulose ether Polymers 0.000 abstract description 7
- 150000002148 esters Chemical class 0.000 abstract description 7
- 238000010009 beating Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 7
- 241000209094 Oryza Species 0.000 description 6
- 235000007164 Oryza sativa Nutrition 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 235000009566 rice Nutrition 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber 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
- 238000010306 acid treatment Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000006731 degradation reaction 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
- 230000007613 environmental effect Effects 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
- 230000035699 permeability Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 238000009898 sodium hypochlorite bleaching Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Abstract
The present invention discloses a low-viscosity cotton pulp for producing cellulose ether ester and preparation method of said cotton pulp. Said invention uses cotton linters as raw material, and its preparation method includes the following steps: preparing material, digesting, washing material, beating, bleaching, removing sand, water-washing and pulp-making, etc.
Description
Technical field
The present invention relates to textile technology field, especially relating to a kind of cotton linter that adopts is that the raw material production preparation is used to make the preparation method of cellulose ether-esters with low-viscosity cotton pulp and these cotton pulp dregs of rice.
Background technology
The cellulose ether ester derivative is the human natural macromolecular material of finding the earliest, because of cellulose derives from nature, so have other materials incomparable characteristics, good as processability, oil resistivity is good, transparent, bright in colour, plentiful etc.Cellulose fiber by solvent method is a kind of brand-new environmental protection fiber that grows up external nineties 21 century, renewable because of its raw material, fibre property is very good, and production process is pollution-free, but characteristics such as Natural Degradation are described as 21 century revolutionary fiber and textile raw material.Natural fabric that it is good and synthetic fiber characteristic, make product integrate brute force, hair very refreshing of feel gloss, the chemical fibre of cotton sucting wet air permeability, silk, itself and natural fabric have an affinity characteristic, can develop the woven and knit product of multiple high added value, market prospects are extremely wide.Along with the high speed development of these cellulose ether ester derivatives, more and more higher to the requirement of the raw material for preparing these products, as low-viscosity cotton pulp.The fine content of first in the cotton pulp dregs of rice product that current people produce is lower, whiteness is low, and quality scale is also lower, can not adapt to the needs of cellulose ether ester derivative development.And the production of the cotton pulp dregs of rice is still adopted at present mostly is the traditional high-alkali formula boiling of high temperature and the traditional processing technology of sodium hypochlorite bleaching, by the fine content of first is lower in the cotton pulp dregs of rice product of these preparation methods' productions, whiteness is low, and reactivity worth is poor, quality scale is lower, and the preparation method that people are used for preparing the cotton pulp dregs of rice at present exist consume big, pollute shortcomings such as high, that the production added value is low, this has influenced the development of cellulose ether ester derivative greatly.
Summary of the invention
Technical problem to be solved by this invention has provided a kind of cellulose ether-esters low-viscosity cotton pulp that is used to make, the fine content height of its first, whiteness value height, and the quality scale height can be good at adapting to the needs that the cellulose ether ester derivative develops.
The present invention also provides a kind of preparation to be used to make the method for cellulose ether-esters with low-viscosity cotton pulp, the fine content height of the first of the cotton pulp dregs of rice that this preparation method produces, whiteness value height, and reactivity worth is good, and this preparation method has advantages such as consumption is low, pollution is low.
What provide in the present invention is used to make the cellulose ether-esters low-viscosity cotton pulp, for adopting cotton linter is that raw material production is used to make the cellulose ether-esters low-viscosity cotton pulp, its performance is the degree of polymerization 50～400, alpha cellulose 〉=98%, ash content≤0.10%, iron branch≤15ppm, whiteness 〉=82%, quantitative 700 ± 100g/m
2, moisture 10.0 ± 1.0%; When selecting materials, choose maturity 〉=70%, that outward appearance does not have is assorted, the high quality cotton short flannel of no different in nature fiber.
Being used to of being provided among the present invention makes cellulose ether-esters and comprises with the preparation method of low-viscosity cotton pulp and getting the raw materials ready, boiling, wash material, making beating, desanding, bleaching, washing, copy steps such as slurry, wherein boiling is carried out in boiling vessel, for adopting cotton linter is the low-viscosity cotton pulp of raw material production, comprise boiling, steps such as bleaching, boiling is carried out in boiling vessel, employing is in 10～38% of the relative over dry cotton linter of NaOH amount, the relative over dry cotton linter of digesting assistant bleeding agent amount 0.1～10%, the relative over dry cotton linter of hydrogen peroxide amount 0.1～10%, the relative over dry cotton linter of magnesium sulfate amount 0.1～10%, the relative over dry cotton linter of sodium metasilicate amount 0.1～10%, liquor ratio is 1: 2～5,50～100 minutes heating-up times, 110～180 ℃ of boiling temperatures, temperature retention time 90～380 minutes.When boiling, 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 ion such as the iron in the adsorbable complexing digestion system, calcium, magnesium, manganese rust, avoid impurity to be deposited on the fiber, thereby improve the whiteness of cooking effect and cotton pulp.
Then adopt chlorination bleaching during bleaching, with respect to 2～6% of oven dry stock amount, slurry concentration is 2～6% with effective chlorine dosage, carry out for 9～11 times at 40～60 ℃ of temperature, pH value, and time of chlorinating 30～60 minutes.
In the present invention, getting the raw materials ready before the boiling is necessary, these are concerning any those skilled in the art, it all is routine techniques, when selecting materials, choose maturity 〉=70%, the outward appearance free from admixture, the high quality cotton short flannel that does not have different in nature fiber, get the raw materials ready and to adopt conventional in the art at present mode, cotton linter is screened, and carry out removal of impurities etc. and give preparation, to obtain meeting the cotton linter raw material of working condition, slurry after the boiling washed wash material, and be 5%～10% at slurry concentration, beating time is at beater it to be pulled an oar under 30～90 minutes, no little slurry group in the slurry that require to obtain, in desander, slurry is carried out desanding afterwards, remove impurity in the slurry and tiny fiber, reach the requirement that meets production technology, slurry after the bleaching is washed, and in pulp machine, slurry is copied slurry, dry afterwards to obtain pulp, and can pack to the pulp after the oven dry, these operations be in current this area the production process that often adopts, and, in order to improve the quality of pulp product, can increase by a pickling process after to slurry bleaching, and increased enrichment process before copying slurry, this also all belongs to the known routine techniques of those skilled in that art in actual production.For the equipment such as screening of the equipment that in whole processing step, is adopted when getting the raw materials ready, potcher in boiling vessel in the boiling-off, the bleaching, and beater, desander, copy slurry, oven dry, used equipment even acid treatment and the concentrator of packing, be current people applied equipment in actual production, there is no special feature; Employed aborning each raw material also be people in daily production the material that often uses.
The present invention has adopted better simply production technology that cotton linter is handled, and the suitable adjusting materials and the condition of reaction, make and be used to make the production of cellulose ether-esters can finish under less supplies consumption and the oligosaprobic situation in the present invention with low-viscosity cotton pulp, be convenient in the production operation of reality, use, and the pulp middle cotton fibre property of producing is good, the fine content height of first, the whiteness value height, reactivity worth is good, the needs that can adapt to the development of cellulose ether ester derivative preferably, its every technical indicator can reach: the degree of polymerization 50～400, alpha cellulose 〉=98%, ash content≤0.10%, iron branch≤15ppm, whiteness 〉=82%, quantitative 700 ± 100g/m
2, the excellent properties of moisture 10.0 ± 1.0%.
The specific embodiment
Embodiment 1
Choose maturity 〉=70%, the outward appearance free from admixture, the high quality cotton short flannel that does not have different in nature fiber is by getting the raw materials ready, screen, obtain meeting the cotton linter raw material of working condition, raw material is put into boiling vessel, employing is 24.5% in the relative over dry cotton linter of NaOH amount, auxiliary agent adopts the relative over dry cotton linter of neopelex amount 1.2%, the relative over dry cotton linter of hydrogen peroxide amount 1%, the relative over dry cotton linter of magnesium sulfate amount 0.3%, the relative over dry cotton linter of sodium metasilicate amount 0.1%, liquor ratio is dosing in 1: 3, be warmed up to 168 ℃ in 50 minutes, and the insulation be 250 minutes, bleed off raffinate after boiling finishes, and the slurry after the boiling washed, in beater, the slurry after the boiling is pulled an oar afterwards, beating consistency was pulled an oar 30～90 minutes between 5%～10%, is provided with little slurry group and exists in slurry; Again the slurry that obtains is carried out desanding in desander, to remove impurity in the slurry and tiny fiber; 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 60 ℃ of temperature, pH value 10, carry out chlorination 40 minutes 4%; Bleed off raffinate then and it is washed,, 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: the degree of polymerization 240, alpha cellulose 98.6%, ash content 0.09%, iron divides 12ppm, whiteness 85%, quantitatively 750g/m
2, and delivery moisture can reach 10.5%, 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 20.5%, auxiliary agent adopts the relative over dry cotton linter of neopelex amount 3%, the relative over dry cotton linter of hydrogen peroxide amount 2.5%, the relative over dry cotton linter of magnesium sulfate amount 0.7%, the relative over dry cotton linter of sodium metasilicate amount 0.3%, liquor ratio is dosing in 1: 2, be warmed up to 150 ℃ in 70 minutes, and be incubated 380 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 50 minutes 2%.
Adopt the pulp performance that the foregoing description obtained to be: the degree of polymerization 380, alpha cellulose 〉=98.3%, ash content 0.06%, iron divides 12ppm, whiteness 85%, quantitatively 743g/m
2, and delivery moisture can reach 10.2%, 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 27%, auxiliary agent adopts the relative over dry cotton linter of peregal amount 5%, the relative over dry cotton linter of hydrogen peroxide amount 4.6%, the relative over dry cotton linter of magnesium sulfate amount 1%, the relative over dry cotton linter of sodium metasilicate amount 0.5%, liquor ratio is dosing in 1: 5, be warmed up to 170 ℃ in 50 minutes, and be incubated 120 minutes;
Then adopt the effective chlorine dosage with respect to oven dry stock amount 5% when bleaching, slurry concentration can under the condition of 40 ℃ of temperature, pH value 11, carry out chlorination 50 minutes 6%.
Adopt the pulp performance that the foregoing description obtained to be: the degree of polymerization 230, alpha cellulose 98.8%, ash content 0.10%, iron divides 12ppm, whiteness 84%, quantitatively 693g/m
2, and delivery moisture can reach 9.8%, 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 38%, auxiliary agent adopts the relative over dry cotton linter of neopelex amount 5%, the relative over dry cotton linter of hydrogen peroxide amount 4.5%, the relative over dry cotton linter of magnesium sulfate amount 1%, the relative over dry cotton linter of sodium metasilicate amount 0.6%, liquor ratio is dosing in 1: 3, be warmed up to 154 ℃ in 60 minutes, and be incubated 150 minutes;
Then adopt the effective chlorine dosage with respect to oven dry stock amount 2% when bleaching, slurry concentration can under the condition of 50 ℃ of temperature, pH value 9, carry out chlorination 60 minutes 2%.
Adopt the pulp performance that the foregoing description obtained to be: the degree of polymerization 320, alpha cellulose 99.0%, ash content 0.09%, iron divides 10ppm, whiteness 84%, quantitatively 732g/m
2, and delivery moisture can reach 9.5%, 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 10%, auxiliary agent adopts the relative over dry cotton linter of peregal amount 9%, the relative over dry cotton linter of hydrogen peroxide amount 8.2%, the relative over dry cotton linter of magnesium sulfate amount 4%, the relative over dry cotton linter of sodium metasilicate amount 2%, liquor ratio is dosing in 1: 2, be warmed up to 160 ℃ in 50 minutes, and be incubated 110 minutes;
Then adopt the effective chlorine dosage with respect to oven dry stock amount 2% when bleaching, slurry concentration can under the condition of 42 ℃ of temperature, pH value 9, carry out chlorination 40 minutes 3%.
Adopting the pulp performance that the foregoing description obtained is the degree of polymerization 180, alpha cellulose 98.1%, and ash content 0.07%, iron divides 10ppm, whiteness 86%, quantitatively 698g/m
2, and delivery moisture can reach 10.2%, its excellent performance.
Embodiment 6
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 21%, auxiliary agent adopts the relative over dry cotton linter of neopelex amount 5%, the relative over dry cotton linter of hydrogen peroxide amount 6.3%, the relative over dry cotton linter of magnesium sulfate amount 2%, the relative over dry cotton linter of sodium metasilicate amount 1.8%, liquor ratio is dosing in 1: 3.2, be warmed up to 180 ℃ in 100 minutes, and be incubated 90 minutes;
Then adopt the effective chlorine dosage with respect to oven dry stock amount 6% when bleaching, slurry concentration can under the condition of 40 ℃ of temperature, pH value 12, carry out chlorination 30 minutes 6%.
Adopt the pulp performance that the foregoing description obtained to be: the degree of polymerization 380, alpha cellulose 98.1%, ash content 0.10%, iron divides 10ppm, whiteness 82%, quantitatively 685g/m
2, and delivery moisture can reach 10.2%, its excellent performance.
Claims (4)
1. be used to make the cellulose ether-esters low-viscosity cotton pulp, adopting cotton linter is the low-viscosity cotton pulp of raw material production, it is characterized in that: the degree of polymerization 50～400, alpha cellulose 〉=98%, ash content≤0.10%, iron branch≤15ppm, whiteness 〉=82%, quantitative 700 ± 100g/m
2, moisture 10.0 ± 1.0%; When selecting materials, choose maturity 〉=70%, that outward appearance does not have is assorted, the high quality cotton short flannel of no different in nature fiber.
2. one kind prepares the method that is used for production of cellulose ether-ether usefulness low-viscosity cotton pulp, for adopting cotton linter is the low-viscosity cotton pulp of raw material production, comprise boiling, steps such as bleaching, it is characterized in that: boiling is carried out in boiling vessel, employing is in 10～38% of the relative over dry cotton linter of NaOH amount, the relative over dry cotton linter of digesting assistant bleeding agent amount 0.1～10%, the relative over dry cotton linter of hydrogen peroxide amount 0.1～10%, the relative over dry cotton linter of magnesium sulfate amount 0.1～10%, the relative over dry cotton linter of sodium metasilicate amount 0.1～10%, liquor ratio is 1: 2～5,50～100 minutes heating-up times, 110～180 ℃ of boiling temperatures, temperature retention time 90～380 minutes.
3. a kind of preparation according to claim 2 is used for the method for production of cellulose ether-ether with low-viscosity cotton pulp, it is characterized in that: the chlorination bleaching is adopted in bleaching, with effective chlorine dosage with respect to 2～6% of oven dry stock amount, slurry concentration is 2～6%, carry out for 9～11 times at 40～60 ℃ of temperature, pH value, and time of chlorinating 30～60 minutes.
4. a kind of preparation according to claim 2 is used for the production of cellulose ether-ether with the method for low-viscosity cotton pulp, it is characterized in that: described bleeding agent is at least a in peregal and the neopelex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100684834A CN101130935A (en) | 2006-08-26 | 2006-08-26 | Low-viscosity cotton pulp used for producing cellulose ether-esters and method for making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100684834A CN101130935A (en) | 2006-08-26 | 2006-08-26 | Low-viscosity cotton pulp used for producing cellulose ether-esters and method for making the same |
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|---|---|
| CN101130935A true CN101130935A (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100684834A Pending CN101130935A (en) | 2006-08-26 | 2006-08-26 | Low-viscosity cotton pulp used for producing cellulose ether-esters and method for making the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656524A (en) * | 2019-10-10 | 2020-01-07 | 山东银鹰股份有限公司 | Production process of cotton pulp for preparing cellulose nitrate |
| CN111379187A (en) * | 2018-12-28 | 2020-07-07 | 安徽雪龙纤维科技股份有限公司 | Insulating pulp board and production method thereof |
| CN114711451A (en) * | 2022-05-13 | 2022-07-08 | 湖北中烟工业有限责任公司 | Cotton linter cellulose derivative for tobacco sheets and preparation method and application thereof |
-
2006
- 2006-08-26 CN CNA2006100684834A patent/CN101130935A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379187A (en) * | 2018-12-28 | 2020-07-07 | 安徽雪龙纤维科技股份有限公司 | Insulating pulp board and production method thereof |
| CN110656524A (en) * | 2019-10-10 | 2020-01-07 | 山东银鹰股份有限公司 | Production process of cotton pulp for preparing cellulose nitrate |
| CN110656524B (en) * | 2019-10-10 | 2022-04-19 | 山东银鹰股份有限公司 | Production process of cotton pulp for preparing cellulose nitrate |
| CN114711451A (en) * | 2022-05-13 | 2022-07-08 | 湖北中烟工业有限责任公司 | Cotton linter cellulose derivative for tobacco sheets and preparation method and application thereof |
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