AU2018102197A4 - Method for preparing regenerated cellulose fiber dyeable with natural dye - Google Patents
Method for preparing regenerated cellulose fiber dyeable with natural dye Download PDFInfo
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- AU2018102197A4 AU2018102197A4 AU2018102197A AU2018102197A AU2018102197A4 AU 2018102197 A4 AU2018102197 A4 AU 2018102197A4 AU 2018102197 A AU2018102197 A AU 2018102197A AU 2018102197 A AU2018102197 A AU 2018102197A AU 2018102197 A4 AU2018102197 A4 AU 2018102197A4
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
:
The present invention discloses a preparation method for a natural dye-dyeable
regenerated cellulose fibre, the preparation method including steps of: firstly, adding a
chitosan solution into a viscose spinning solution to prepare a viscose spinning
solution-chitosan mixed solution, then adding a tannin solution, mixing the same, then
performing reaction sufficiently, and finally performing wet spinning on the obtained
tannin-viscose spinning solution liquid, so as to prepare the natural dye-dyeable regenerated
cellulose fibre. After the prepared regenerated cellulose fibre is dyed by a natural dye, yarn or
fabric made by the fibre has various good color fastness and can meet the production and
administration.
Description
The present invention belongs to the technical field of spinning raw materials, and
particularly relates to a preparation method for a natural dye-dyeable regenerated cellulose
fibre.
BACKGROUND A regenerated cellulose fibre is a regenerable fibre made by natural cellulose subjected to a series of complex chemical and physical changes, is mainly composed of the cellulose, has the good dyeing performance and gloss, and meanwhile, has the excellent administration performance and wide applicability, and in addition, the drapability thereof is far better than that of a textile made of cotton and linen. The applications of the fibre almost cover various aspects of all of industries, agriculture, living, clothing and the like, and thus the fibre is one of important raw materials of the spinning industry. Since the regenerated cellulose fibre has so many advantages, in recent years, it has become more and more popular among consumers, and products, obtained by generally used dyeing or printing by a reactive dye, have the unique advantages on the aspects of color fastness, gloss and vividness. Meanwhile, since the regenerated cellulose fibre has the crystallinity better than a natural cellulose fibre, when dyed and printed, the regenerated cellulose fibre will have a higher dye-uptake rate, the difficulty of sewage treatment is reduced, and the pollution problem caused by fabric dyeing can be improved to a certain extent; however, due to the characteristic of a synthetic dye, the pollution problem generated when the reactive dye is used for dyeing still cannot be avoided. It is well known that a natural dye is environment-friendly and healthy, good in biodegradability and compatibility with an ecological environment, nontoxic and harmless, non-irritative and non-carcinogenic to skin, and regenerable in a source, meanwhile, dyeing waste water of the natural dye does not generate the water pollution problem caused by chemical dye waste water, the difficulty of treatment such as waste water decoloring is small, and thus the good research and development prospect is achieved. However, although using the natural dye to dye the regenerated cellulose fibre has many advantages, such as safety, environmental-friendliness and ecological non-toxicity, at present, when the natural dye is used to dye and print the regenerated cellulose fibre, the problem that various color fastness does not reach the standard still exists although there is also a lot of research on this aspect. The patent of the application number: CN201610050735.4 uses an extracted lavender dye to dye a modified regenerated cellulose fibre to obtain a good dye-uptake rate and the good color fastness, however, the method is tedious in process and high in cost and has the main problem that the regenerated cellulose fibre can be dyed only after modified; the patent of the application number: CN201610050277.4 discloses a method for dyeing a regenerated cellulose fibre by an isatis indigotica fortune dye, similarly, the method firstly modifies the regenerated cellulose fibre and uses a natural dye to dye the fibre, so as to obtain a good dye-uptake rate and various good color fastness, but there are still the problems that the process is tedious and a cost is high; and therefore, at present, a method which can thoroughly solve the problems, caused by the fact that the regenerated cellulose fibre is dyed by the natural dye, that the dye-uptake rate is low, the color fastness is poor, the cost is high and the processing flow is long has not appeared yet, and a technical breakthrough is urgently needed.
SUMMARY An objective of the present invention is to overcome the defects in the prior art and provide a preparation method for a natural dye-dyeable regenerated cellulose fibre, after the regenerated cellulose fibre prepared through spinning is dyed by a natural dye, yam or fabric made by the fibre has various good color fastness and can meet the production and administration. The present invention is implemented by means of the following mode: the preparation method for the natural dye-dyeable regenerated cellulose fibre, including steps: step 1, preparing a viscose spinning solution; step 2, preparing a viscose spinning solution-chitosan mixed solution, comprising: firstly preparing a chitosan solution in a reaction kettle, and then adding the viscose spinning solution into the reaction kettle for sufficient mixing, to prepare the viscose spinning solution-chitosan mixed solution; step 3, performing crosslinking reaction between tannin and the viscose spinning solution-chitosan mixed solution, comprising: preparing a tannin solution in the reaction kettle, then adding the viscose spinning solution-chitosan mixed solution into the reaction kettle, and adjusting a temperature in the reaction kettle to make the solutions sufficiently react in the reaction kettle; and step 4, performing wet spinning on a tannin-viscose spinning solution liquid obtained in the step 3, so as to prepare the natural dye-dyeable regenerated cellulose fibre. Further, a solvent used by the chitosan solution in the step 2 is water, and a mass fraction of chitosan is 10%-20%.
Further, mass of the chitosan in the step 2 accounts for 10%-20% of a content of alpha cellulose in the viscose spinning solution. Further, a solvent used by the tannin solution in the step 3 is water, and a mass fraction of the tannin is 10%-20%. Further, a mass ratio between the tannin and the chitosan in the reaction kettle in the step 3 is 1:1. Further, a reaction temperature in the reaction kettle in the step 3 is 20-40°C, and a reaction time is 4-8 hours. As an explanation, the alpha cellulose in the present invention refers to cellulose A, also called as a-cellulose, that is, a portion undissolved after a cellulose raw material is submerged in a sodium hydroxide solution of 17.5%-18% at 200 C for 45 minutes. The tannin used by the present invention preferably selects a naturally-sourced extract, preferably, an extract of a raw material of a plant, gallnut. The tannin is water soluble dendritic polyphenol and has the natural antioxidative, antibacterial and antiviral activity. In addition, a tannin molecule contains a large number of phenolic hydroxyl groups, resulting in that the tannin may not only be used as a natural crosslinking agent. The tannin may react with substances such as alkaloid, protein and polysaccharide, the principle of this lies in that the polyphenol firstly moves towards surfaces of macromolecules such as the protein through a hydrophobic bond to enter hydrophobic pockets thereof, so as to generate two-point hydrogen bond bonding, and due to the simultaneous action of the hydrophobic bond and a hydrogen bond, the tannin reacts on a macromolecular structure of the polysaccharide in a multi-point bonding mode. The chitosan is only existing alkaline glycosaminoglycan in the natural world, and compared with a synthetic macromolecular material, the chitosan not only has the characteristics of being wide in source, low in cost, stable in nature, and free of irritation, sensitization and mutagenesis, but also has the good biocompatibility, biodegradability, film forming performance and antibacterial performance. The advantages of the present invention lie in that firstly the similarity in molecular structure between the chitosan and the cellulose is utilized to dissolve the chitosan in the viscose spinning solution, then the naturally-extracted tannin and a chitosan polysaccharide structure are utilized to generate crosslinking reaction, the tannin is grafted on a macromolecular structure of the chitosan, and finally the crosslinked viscose spinning solution is subjected to wet spinning to obtain the chitosan regenerated cellulose fibre containing a tannin macromolecule. Meanwhile, the tannin is utilized as a mordant, the natural dye is used to dye the prepared fibre, thereby greatly improving various color fastness of the regenerated cellulose fibre, and meanwhile, compared with a heavy metal ion or a rare earth element, the preferably naturally-extracted tannin has the characteristics of being non-toxic and harmless to a human body, safe, environment-friendly and pollution-free. In addition, the present invention utilizes the chitosan as a reaction main body to graft the tannin on the regenerated cellulose fibre, thereby greatly increasing a fixation rate of the tannin in the fibre and also further increasing indexes of all the color fastness of the fiber dyed by the natural dye. Meanwhile, after the chitosan is added into the fiber, the good antibacterial performance may also be given to the fiber, so as to increase an additional value of a fiber product.
DESCRIPTION OF THE EMBODIMENTS Embodiment 1: a preparation method for a natural dye-dyeable regenerated cellulose fibre, the method including steps: step 1, preparing a viscose spinning solution, wherein a raw material is wood pulp with a degree of polymerization of 500-600, a content of alpha cellulose thereof is greater than 90%, and viscose is prepared according to the following process route: submerging, squeezing, crushing, aging, yellowing, continuous dissolving, filtering and defoaming; and a content of the alpha cellulose of the viscose spinning solution made according to the above-mentioned process is 9.0%, a mass fraction of NaOH is 5.8%, the viscosity
(falling-ball method) is 60 s and a ripening degree is (10% NH 4Cl) 8.9 mL;
step 2, preparing a viscose spinning solution-chitosan mixed solution, including:
preparing a chitosan solution with a mass fraction of 10% by distilled water in a reaction
kettle, and then adding the viscose spinning solution in a ratio that mass of chitosan accounts
for 10% of the content of the alpha cellulose for sufficient stirring, to prepare the viscose
spinning solution-chitosan mixed solution;
step 3, performing crosslinking reaction on tannin and the viscose spinning
solution-chitosan mixed solution, including:
preparing a tannin solution with a mass fraction of 10% by distilled water in the reaction
kettle, then adding the viscose spinning solution-chitosan mixed solution in a ratio that a
mass ratio between the tannin and the chitosan is 1:1, adjusting a temperature in the reaction
kettle to 30°C and performing reaction for 4-6 hours under the condition of continuous
stirring, to obtain a uniform tannin-viscose spinning solution liquid.
Wet spinning: the tannin-viscose spinning solution liquid is sent to a wet spinning
procedure for spinning. The spinning nozzle specification is 21000 holes x 0.06 mm, the
spinning speed is 55 m/min, a coagulating bath temperature is 52C and a plasticizing bath
temperature is 95C. Components for a coagulating bath are: 115 g/L of sulfuric acid, 325 g/L
of sodium sulfate and 11.5 g/L of zinc sulfate.
Embodiment 2: a preparation method for a natural dye-dyeable regenerated cellulose
fibre, the method including steps:
step 1, preparing a viscose spinning solution,
wherein a raw material is wood pulp with a degree of polymerization of 500-600, a
content of alpha cellulose thereof is greater than 90%, and viscose is prepared according to
the following process route: submerging, squeezing, crushing, aging, yellowing, continuous
dissolving, filtering and defoaming; and
a content of the alpha cellulose of the viscose spinning solution made according to the
above-mentioned process is 9.0%, a mass fraction of NaOH is 5.8%, the viscosity
(falling-ball method) is 60 s and a ripening degree is (10% NH 4Cl) 8.9 mL;
step 2, preparing a viscose spinning solution-chitosan mixed solution, including: preparing a chitosan solution with a mass fraction of 15% by distilled water in a reaction kettle, and then adding the viscose spinning solution in a ratio that mass of chitosan accounts for 15% of the content of the alpha cellulose for sufficient stirring, to prepare the viscose spinning solution-chitosan mixed solution; step 3, performing crosslinking reaction on tannin and the viscose spinning solution-chitosan mixed solution, including: preparing a tannin solution with a mass fraction of 15% by distilled water in the reaction kettle, then adding the viscose spinning solution-chitosan mixed solution in a ratio that a mass ratio between the tannin and the chitosan is 1:1, adjusting a temperature in the reaction kettle to 30°C and performing reaction for 4-6 hours under the condition of continuous stirring, to obtain a uniform tannin-viscose spinning solution liquid; and
Wet spinning: the tannin-viscose spinning solution liquid is sent to a wet spinning
procedure for spinning. The spinning nozzle specification is 21000 holes x 0.06 mm, the
spinning speed is 55 m/min, a coagulating bath temperature is 52C and a plasticizing bath
temperature is 95C. Components for a coagulating bath are: 115 g/L of sulfuric acid, 325 g/L
of sodium sulfate and 11.5 g/L of zinc sulfate.
Embodiment 3: a preparation method for a natural dye-dyeable regenerated cellulose
fibre, the method including steps:
step 1, preparing a viscose spinning solution,
wherein a raw material is wood pulp with a degree of polymerization of 500-600, a
content of alpha cellulose thereof is greater than 90%, and viscose is prepared according to
the following process route: submerging, squeezing, crushing, aging, yellowing, continuous
dissolving, filtering and defoaming; and
a content of the alpha cellulose of the viscose spinning solution made according to the
above-mentioned process is 9.0%, a mass fraction of NaOH is 5.8%, the viscosity
(falling-ball method) is 60 s and a ripening degree is (10% NH 4Cl) 8.9 mL;
step 2, preparing a viscose spinning solution-chitosan mixed solution, including:
preparing a chitosan solution with a mass fraction of 20% by distilled water in a reaction
kettle, and then adding the viscose spinning solution in a ratio that mass of chitosan accounts
for 20% of the content of the alpha cellulose for sufficient stirring, to prepare the viscose spinning solution-chitosan mixed solution; step 3, performing crosslinking reaction on tannin and the viscose spinning solution-chitosan mixed solution, including: preparing a tannin solution with a mass fraction of 20% by distilled water in the reaction kettle, then adding the viscose spinning solution-chitosan mixed solution in a ratio that a mass ratio between the tannin and the chitosan is 1:1, adjusting a temperature in the reaction kettle to 30°C and performing reaction for 4-6 hours under the condition of continuous stirring, to obtain a uniform tannin-viscose spinning solution liquid; and wet spinning: the tannin-viscose spinning solution liquid is sent to a wet spinning procedure for spinning. The spinning nozzle specification is 21000 holes x 0.06 mm, the spinning speed is 55 m/min, a coagulating bath temperature is 52C and a plasticizing bath temperature is 95C. Components for a coagulating bath are: 115 g/L of sulfuric acid, 325 g/L of sodium sulfate and 11.5 g/L of zinc sulfate.
Comparative Embodiment 1
Comparative Embodiment 1 is different from Embodiment 1 in that a viscose spinning
solution is directly used for spinning, no chitosan is added, and no tannin is added for
crosslinking reaction either.
Preparing the viscose spinning solution:
a raw material is wood pulp with a degree of polymerization of 500-600, a content of
alpha cellulose thereof is greater than 90%, and viscose is prepared according to the
following process route: submerging, squeezing, crushing, aging, yellowing, continuous
dissolving, filtering and defoaming; and
a content of the alpha cellulose of the viscose spinning solution made according to the
above-mentioned process is 9.0%, a mass fraction of NaOH is 5.8%, the viscosity
(falling-ball method) is 60 s and a ripening degree is (10% NH 4Cl) 8.9 mL.
Wet spinning: the viscose spinning solution is sent to a wet spinning procedure for
spinning. The spinning nozzle specification is 21000 holes x 0.06 mm, the spinning speed is
55 m/min, a coagulating bath temperature is 52C and a plasticizing bath temperature is 95°C.
Components for a coagulating bath are: 115 g/L of sulfuric acid, 325 g/L of sodium sulfate
and 11.5 g/L of zinc sulfate.
Comparative Embodiment 2
Comparative Embodiment 2 is different from Embodiment 1 in that a viscose spinning
solution is directly used for spinning, and only tannin is added for crosslinking reaction,
Comparative Embodiment 2 including steps:
step 1, preparing a viscose spinning solution,
wherein a raw material is wood pulp with a degree of polymerization of 500-600, a
content of alpha cellulose thereof is greater than 90%, and viscose is prepared according to
the following process route: submerging, squeezing, crushing, aging, yellowing, continuous
dissolving, filtering and defoaming; and
a content of the alpha cellulose of the viscose spinning solution made according to the
above-mentioned process is 9.0%, a mass fraction of NaOH is 5.8%, the viscosity
(falling-ball method) is 60 s and a ripening degree is (10% NH 4Cl) 8.9 mL;
step 2, performing crosslinking reaction on tannin and the viscose spinning
solution-chitosan mixed solution, including:
preparing a tannin solution with a mass fraction of 10% by distilled water in a reaction
kettle, then adding the viscose spinning solution in a ratio that mass of chitosan accounts for
10% of the content of the alpha cellulose, adjusting a temperature in the reaction kettle to
30°C and performing reaction for 4-6 hours under the condition of continuous stirring, to
obtain a uniform tannin-viscose spinning solution liquid; and
wet spinning: the tannin-viscose spinning solution liquid is sent to a wet spinning
procedure for spinning. The spinning nozzle specification is 21000 holes x 0.06 mm, the
spinning speed is 55 m/min, a coagulating bath temperature is 52C and a plasticizing bath
temperature is 95C. Components for a coagulating bath are: 115 g/L of sulfuric acid, 325 g/L
of sodium sulfate and 11.5 g/L of zinc sulfate.
Comparative Embodiment 3
Comparative Embodiment 3 is different from Embodiment 1 in that a regenerated
cellulose fibre is prepared by spinning directly after only a chitosan solution is added to a
viscose spinning solution, no tannin is added for crosslinking reaction, Comparative
Embodiment 3 including steps:
step 1, preparing a viscose spinning solution, wherein a raw material is wood pulp with a degree of polymerization of 500-600, a content of alpha cellulose thereof is greater than 90%, and viscose is prepared according to the following process route: submerging, squeezing, crushing, aging, yellowing, continuous dissolving, filtering and defoaming; and a content of the alpha cellulose of the viscose spinning solution made according to the above-mentioned process is 9.0%, a mass fraction of NaOH is 5.8%, the viscosity
(falling-ball method) is 60 s and a ripening degree is (10% NH 4Cl) 8.9 mL;
step 2, preparing a viscose spinning solution-chitosan mixed solution, including:
preparing a chitosan solution with a mass fraction of 10% by distilled water in a reaction
kettle, and then adding the viscose spinning solution in a ratio that mass of chitosan accounts
for 10% of the content of the alpha cellulose for sufficient stirring, to prepare the viscose
spinning solution-chitosan mixed solution; and
wet spinning: the viscose spinning solution-chitosan mixed solution is sent to a wet
spinning procedure for spinning. The spinning nozzle specification is 21000 holes x 0.06 mm,
the spinning speed is 55 m/min, a coagulating bath temperature is 52C and a plasticizing
bath temperature is 95C. Components for a coagulating bath are: 115 g/L of sulfuric acid,
325 g/L of sodium sulfate and 11.5 g/L of zinc sulfate.
The fibres obtained through spinning in the above-mentioned embodiments are spun,
woven, dyed, finished and the like to make fabric of the fibres, the test on various color
fastness of the fabric is performed, and the obtained results are as follows:
. Acid Alkali Water Dry Wet Light Antibacterial Fabne resistance resistance resistance fastns fasns fastness rate Embodimentf1 4 4 4-5 4 3 34 90.5% Embodiment 2 4 4 4-5 4 3 3-4 93.1% Embodiment 3 4 4-5 4-5 4 3-4 4 96.8%
EComparatve 2 1-2 2 2 1-2 1-2 63.9% Comparative 3-4 3 3 3-4 3 3 72.4% Embodiment 2724
EComparatve3 2 2 2-3 2 2 1-2 91.1%
It can be seen from the test results in the above table that after dyed by a natural dye, the fabric, made by the regenerated cellulose fibre prepared through spinning after crosslinking reaction between the tannin and the viscose spinning solution-chitosan mixed solution, has various good color fastness performance and can meet the color fastness index requirement stipulated by the national standard. The further research finds that the chitosan is added to be able to generate the synergistic action with the tannin, thereby increasing a fixation rate of the tannin in the fibre and further improving various color fastness after the fibre is dyed by the natural dye. A fibre, prepared through spinning after tannin is independently added into a viscose spinning solution, can also improve various color fastness of a fibre product to a certain extent, however, since binding force between the fiber and the tannin is poor, all the color fastness cannot meet the requirement of a superior product. Meanwhile, due to the addition of the chitosan, the good antibacterial and bacteriostatic performance may also be given to the fibre.
Claims (6)
1. A preparation method for a natural dye-dyeable regenerated cellulose fibre,
comprising steps of:
step 1, preparing a viscose spinning solution;
step 2, preparing a viscose spinning solution-chitosan mixed solution, comprising: firstly
preparing a chitosan solution in a reaction kettle, and then adding the viscose spinning
solution into the reaction kettle for sufficient mixing, to prepare the viscose spinning
solution-chitosan mixed solution;
step 3, performing crosslinking reaction between tannin and the viscose spinning
solution-chitosan mixed solution, comprising: preparing a tannin solution in the reaction
kettle, then adding the viscose spinning solution-chitosan mixed solution into the reaction
kettle, and adjusting a temperature in the reaction kettle to make the solutions sufficiently
react in the reaction kettle; and
step 4, performing wet spinning on a tannin-viscose spinning solution liquid obtained in
the step 3, so as to prepare the natural dye-dyeable regenerated cellulose fibre.
2. The preparation method for the natural dye-dyeable regenerated cellulose fibre
according to claim 1, wherein a solvent used by the chitosan solution in the step 2 is water,
and a mass fraction of chitosan is 10%- 2 0 %.
3. The preparation method for the natural dye-dyeable regenerated cellulose fibre
according to claim 1, wherein mass of chitosan in the step 2 accounts for 10%- 2 0% of a
content of alpha cellulose in the viscose spinning solution.
4. The preparation method for the natural dye-dyeable regenerated cellulose fibre
according to claim 1, wherein a solvent used by the tannin solution in the step 3 is water, and
a mass fraction of the tannin is 10%- 2 0 %.
5. The preparation method for the natural dye-dyeable regenerated cellulose fibre
according to claim 1, wherein a mass ratio between the tannin and chitosan in the reaction
kettle in the step 3 is 1:1.
6. The preparation method for the natural dye-dyeable regenerated cellulose fibre
according to claim 1, wherein a reaction temperature in the reaction kettle in the step 3 is
20-40 0C, and a reaction imeis4-8 hours.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600001.8A CN108707991B (en) | 2018-06-12 | 2018-06-12 | Preparation method of natural dye dyeable regenerated cellulose fiber |
| CN201810600001.8 | 2018-06-12 |
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| AU2018102197A4 true AU2018102197A4 (en) | 2020-12-24 |
Family
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| AU2018102197A Active AU2018102197A4 (en) | 2018-06-12 | 2018-08-01 | Method for preparing regenerated cellulose fiber dyeable with natural dye |
| AU2018428229A Pending AU2018428229A1 (en) | 2018-06-12 | 2018-08-01 | Method for preparing regenerated cellulose fiber dyeable with natural dye |
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| AU2018428229A Pending AU2018428229A1 (en) | 2018-06-12 | 2018-08-01 | Method for preparing regenerated cellulose fiber dyeable with natural dye |
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| CN (1) | CN108707991B (en) |
| AU (2) | AU2018102197A4 (en) |
| WO (1) | WO2019237466A1 (en) |
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| CN113417154B (en) * | 2021-06-22 | 2022-05-17 | 中纺院（浙江）技术研究院有限公司 | Biomass auxiliary agent and preparation method and application thereof |
| CN114232120B (en) * | 2022-01-28 | 2024-03-29 | 郑州中远氨纶工程技术有限公司 | Antigen fibrillated cellulose fiber and preparation method thereof |
| CN114395916B (en) * | 2022-01-28 | 2024-04-19 | 郑州中远氨纶工程技术有限公司 | Antigen fibrillated cellulose fiber and preparation method thereof |
| CN116876210B (en) * | 2023-07-21 | 2024-09-24 | 浙江技立新材料股份有限公司 | A method for preparing multifunctional fabric |
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| DE467003C (en) * | 1924-04-04 | 1928-10-20 | Leon Lilienfeld Dr | Process for the production of plastics |
| CN1173082C (en) * | 2002-07-23 | 2004-10-27 | 湘潭陈氏精密化学有限公司 | Modified viscose fiber and its production method |
| CN100485098C (en) * | 2006-11-01 | 2009-05-06 | 天津工业大学 | Modified viscose fibre and its producing method |
| CN101440535A (en) * | 2008-12-19 | 2009-05-27 | 江南大学 | Method for preparing chitosan-silver ion anti-bacterial viscose fiber from corps straw |
| CN102560902A (en) * | 2012-01-12 | 2012-07-11 | 天津工业大学 | Method for producing viscose cellulose spun-laid nonwoven |
| CZ2013913A3 (en) * | 2013-11-21 | 2015-06-03 | Contipro Biotech S.R.O. | Voluminous nanofibrous material based on hyaluronic acid, salts or derivatives thereof, process of its preparation, method of its modification, modified nanofibrous material, nanofibrous formation and use thereof ased . |
| CN106591990B (en) * | 2016-12-12 | 2019-07-09 | 浙江三佳制衣有限公司 | A kind of more effect regenerated celulose fibres |
| CN107142540A (en) * | 2016-12-23 | 2017-09-08 | 句容市申兔工艺针织厂 | A kind of preparation technology of anti-bacterial fibre |
| CN106884323A (en) * | 2017-02-26 | 2017-06-23 | 浙江峰赫纺织有限公司 | A kind of preparation method of chitosan anti-bacteria viscose rayon |
| CN108103666B (en) * | 2017-12-29 | 2019-09-24 | 上海尔迪仪器科技有限公司 | It is a kind of for filtering the preparation method of the three-dimensional nanofiber membrane of PM2.5 |
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- 2018-06-12 CN CN201810600001.8A patent/CN108707991B/en active Active
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- 2018-08-01 WO PCT/CN2018/097866 patent/WO2019237466A1/en not_active Ceased
- 2018-08-01 AU AU2018428229A patent/AU2018428229A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN108707991B (en) | 2020-02-21 |
| AU2018428229A1 (en) | 2020-12-03 |
| WO2019237466A1 (en) | 2019-12-19 |
| CN108707991A (en) | 2018-10-26 |
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