CN109468697A - A kind of composite fibre and preparation method thereof comprising gold and silver boisiana extract - Google Patents
A kind of composite fibre and preparation method thereof comprising gold and silver boisiana extract Download PDFInfo
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- CN109468697A CN109468697A CN201811230364.3A CN201811230364A CN109468697A CN 109468697 A CN109468697 A CN 109468697A CN 201811230364 A CN201811230364 A CN 201811230364A CN 109468697 A CN109468697 A CN 109468697A
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- gold
- silver
- boisiana extract
- composite fibre
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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
Abstract
The present invention relates to a kind of composite fibre and preparation method thereof comprising gold and silver boisiana extract.The preparation method includes: that (1) prepares gold and silver boisiana extract mixed solution: gold and silver boisiana extract, dispersing agent and crosslinking agent being taken to sequentially add in water, it heats and keeps the temperature after evenly mixing, after filter, take supernatant, obtain gold and silver boisiana extract mixed solution；(2) it prepares rayon spinning liquid: by pulp through dipping, squeezing, crushing, experienced, yellow, dissolution, filtering and deaeration technique, obtaining rayon spinning liquid；(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) is mixed with rayon spinning liquid obtained by step (2) by even injection before spinning, after the progress spinning composite fibre comprising gold and silver boisiana extract to obtain the final product.The composite fibre has excellent mechanical property, wherein dry breaking strength is 2.35~2.38CN/dtex, wet breaking strength is 1.28~1.36CN/dtex and dry elongation at break is 17.3~20.5%.
Description
Technical field
The invention belongs to industry light industry textile industry fields, and in particular to a kind of composite fibre comprising gold and silver boisiana extract and its preparation
Method.
Background technique
Functional regenerated cellulose fibre emerged like the mushrooms after rain in recent years, take weaving and it is non-woven fast
Exhibition is hailed, wherein the development of plant source series of products is especially rapid.Plant source series of products mainly have mint fibers, Chloranthus glaber fine
Dimension, Wormwood fiber, Radix Isatidis, honeysuckle fiber etc..These fibers have one what is common is that additive be derived from naturally, green
Environmental protection, it is harmless.
Notification number is that the patent of CN104790055B proposes a kind of preparation method of viscose rayon containing Herba Pileae Scriptae extract:
Herba Pileae Scriptae extract and sodium carboxymethylcellulose are added in fiber, composite fibre is made, fiber has excellent anti-microbial property；
Notification number is that the patent of CN104805520B proposes a kind of preparation method of viscose rayon containing apocynum extract: by bluish dogbane
Extract and sodium carboxymethylcellulose, which are added in fiber, is made composite fibre, and fiber has excellent anti-microbial property；Publication No.
The patent of CN104775173A proposes a kind of preparation method of viscose rayon containing wormwood extract: by wormwood extract and carboxylic first
Base sodium cellulosate, which is added in fiber, is made composite fibre, and fiber has excellent anti-microbial property.Three of the above herb extract is fine
Dimension is different from traditional viscose rayon manufacturing method, is a kind of novel production technology.But the above fibre defect is high, impurity is more,
Extract easily dissolves out after fiber washing, causes fibrous mechanical property poor, and extract is at high cost, is limited to a certain extent non-
The application in weaving field.
Caulis Lonicerae is a kind of perennial half evergreen voluble shrub, and chlorogenic acid, different chloric acid and galuteolin rich in are right
Staphylococcus, hay bacillus, Candida albicans, typhoid bacillus, shigella flexneri and Pseudomonas aeruginosa are inhibited, work as effect
When on human body there is stronger anti-infectious function, especially infantile eczema, pruitus to significantly inhibit.Gold and silver
Boisiana extract has good dissolubility, contains the various trace elements such as iron needed by human, zinc, copper, manganese in extract, they
By foring the large biological molecules such as enzyme, hormone, vitamin in conjunction with human body protein and other organic groups, performance is focused on
The biochemical functions wanted can prevent hypoferric anemia, depauperation, low blood copper disease, multiple sclerosis etc., these are micro
Element is usually to occur in the fibre in the form of metal oxide.Due to the accumulation of heat of these metal oxides, thermal effect, make
Fiber has the function of emitting far-infrared, the research that adds it in regenerated celulose fibre and producing also rarely has at present
Report.
Summary of the invention
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of composite fibres comprising gold and silver boisiana extract
And preparation method thereof.The preparation method first by gold and silver boisiana extract stable dispersion, and with rayon spinning liquid blend spinning, obtain
Composite fibre excellent in mechanical performance and extract be not easy to dissolve out.
The scheme of the invention is providing a kind of preparation method of composite fibre comprising gold and silver boisiana extract, including following step
It is rapid:
(1) it prepares gold and silver boisiana extract mixed solution: gold and silver boisiana extract, dispersing agent and crosslinking agent being taken to sequentially add water
In, heat and keep the temperature after evenly mixing, after filter, take supernatant, obtain gold and silver boisiana extract mixed solution；
(2) rayon spinning liquid is prepared: by pulp through dipping, squeezing, crushing, experienced, yellow, dissolution, filtering and deaeration work
Skill obtains rayon spinning liquid；
(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) and rayon spinning liquid obtained by step (2) are passed through
Even injection mixing before spinning, after carry out spinning up to the composite fibre comprising gold and silver boisiana extract.
Further, in step (1), the dispersing agent is the mixture of neopelex and aliphatic alcohol polyether；
The gold and silver boisiana extract, neopelex, aliphatic alcohol polyether, crosslinking agent and water weight ratio be 1:0.01~
0.05:0.005~0.05:2~8:3~5.
Further, in step (1), the crosslinking agent is fatty acid alkyl alcohol amide, propylene glycol diglycidylether, two
Any one or the combination of several of them in methylolurea or dimethylol ethylene urea.
Further, in step (2), the cuprammonium viscosity of the experienced obtained alkali cellulose is 75~85mPas.
Further, in step (2), the initial temperature of the yellow is 24~28 DEG C, and final temperature is 29~33 DEG C.
Further, the weight ratio of carbon disulfide and alpha cellulose is 0.28~0.36:1 in the yellowing processes.
Further, in step (2), content of alphacellulose is 8.65~9.13wt.%, alkali in the rayon spinning liquid
Content is 4.7~4.98wt.%, and viscosity is 52~64s, and degree of ripeness is 11~15ml.
Further, in step (3), gold and silver boisiana extract and first in rayon spinning liquid in gold and silver boisiana extract mixed solution
The weight ratio of kind cellulose is 0.013~0.267:1.
And in step (3), the method for the spinning is the acid bath wet spinning method of forming, and sulfuric acid concentration is 80 in the acid bath
~130g/L, sulfuric acid zinc concentration is 5~20g/L and sodium sulfate concentration is 260~350g/L；The temperature of the acid bath is 45~55
℃。
Further, after spinning, drawing-off, plasticizing, cutting, refining and baking step are successively carried out, after must wrap
The composite fibre of the boisiana extract containing gold and silver.
Wherein, the refining includes pickling, desulfurization, washing and oiling step, and the desulfurization uses sodium sulfite.
As a general technical idea, it prepared by the above method is mentioned comprising Caulis Lonicerae the present invention also provides a kind of
Take the composite fibre of object.
The invention has the benefit that
The preparation method of composite fibre of the present invention comprising gold and silver boisiana extract, first by extracting Caulis Lonicerae
Object is uniformly dispersed in water, forms gold and silver boisiana extract mixed solution；Then rayon spinning liquid is prepared, during the spinning process,
Using the method injected before spinning, obtained gold and silver boisiana extract composite fibre is not only done for the addition of gold and silver boisiana extract mixed solution
Breaking strength, wet breaking strength and dry elongation at break properties are excellent, and gold and silver boisiana extract is less soluble out, and performance is stablized；Number
According to display: the dry breaking strength of the composite fibre comprising gold and silver boisiana extract is strong up to 2.35~2.38CN/dtex, wet fracture
Degree is up to 1.28~1.36CN/dtex, dry elongation at break up to 17.3~20.5%.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
The present embodiment provides a kind of preparation methods of composite fibre comprising gold and silver boisiana extract, include the following steps:
(1) it prepares gold and silver boisiana extract mixed solution: taking gold and silver boisiana extract, neopelex, poly alkyl alcohol
Ether and fatty acid alkyl alcohol amide sequentially add in water, the gold and silver boisiana extract, neopelex, poly alkyl alcohol
The weight ratio of ether, fatty acid alkyl alcohol amide and water is 1:0.012:0.006:2.5:3, is heated to 40 DEG C after evenly mixing and protects
Warm 45min, after pass sequentially through 300 mesh, 400 mesh and 500 mesh filter screens filtering, remove bottom residues, take supernatant, obtain gold and silver
Boisiana extract mixed solution；
(2) it prepares rayon spinning liquid: short silk flosssilk wadding pulp is impregnated in sodium hydroxide solution；Then through squeezing, powder
Broken and experienced technique obtains the alkali cellulose that cuprammonium viscosity is 75mPas；When then at yellow technique, addition accounts for alpha cellulose weight
Amount controls that yellow initial temperature is 27 DEG C, final temperature is 31 DEG C than being 31% carbon disulfide, obtains cellulose xanthate；
Last cellulose xanthate obtains that content of alphacellulose is 8.65wt.%, alkali content is through dissolution, filtering and deaeration technique
The rayon spinning liquid that 4.7wt.%, viscosity are 55s and degree of ripeness is 13.5ml；
(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) and rayon spinning liquid obtained by step (2) are passed through
Even injection mixing before spinning, wherein gold and silver boisiana extract and first kind in rayon spinning liquid are fine in gold and silver boisiana extract mixed solution
The weight ratio of dimension element is 0.05:1, after carry out acid bath wet spinning, sulfuric acid concentration is 100g/L, zinc sulfate in the acid bath
Concentration is 15g/L, and sodium sulfate concentration 300g/L, the temperature of acid bath is 50 DEG C；Drawing-off, modeling are successively carried out after spinning again
Change cutting, pickling, sodium sulfite desulfurization, is washed, is oiled with stoving process to get the composite fibre comprising gold and silver boisiana extract.
Embodiment 2
The present embodiment provides a kind of preparation methods of composite fibre comprising gold and silver boisiana extract, include the following steps:
(1) it prepares gold and silver boisiana extract mixed solution: taking gold and silver boisiana extract, neopelex, poly alkyl alcohol
Ether and propylene glycol diglycidylether sequentially add in water, the gold and silver boisiana extract, neopelex, poly alkyl alcohol
The weight ratio of ether, propylene glycol diglycidylether and water is 1:0.025:0.015:4:4, is heated to 50 DEG C after evenly mixing and protects
Warm 60min, after pass sequentially through 300 mesh, 400 mesh and 500 mesh filter screens filtering, remove bottom residues, take supernatant, obtain gold and silver
Boisiana extract mixed solution；
(2) it prepares rayon spinning liquid: short silk wood pulps is impregnated in sodium hydroxide solution；Then through squeezing, powder
Broken and experienced technique obtains the alkali cellulose that cuprammonium viscosity is 85mPas；When then at yellow technique, addition accounts for alpha cellulose weight
Amount controls that yellow initial temperature is 26 DEG C, final temperature is 31 DEG C than being 33% carbon disulfide, obtains cellulose xanthate；
Last cellulose xanthate obtains that content of alphacellulose is 8.7wt.%, alkali content is through dissolution, filtering and deaeration technique
The rayon spinning liquid that 4.86wt.%, viscosity are 55s and degree of ripeness is 12ml；
(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) and rayon spinning liquid obtained by step (2) are passed through
Even injection mixing before spinning, wherein gold and silver boisiana extract and first kind in rayon spinning liquid are fine in gold and silver boisiana extract mixed solution
The weight ratio of dimension element is 0.07:1, after carry out acid bath wet spinning, sulfuric acid concentration is 130g/L, zinc sulfate in the acid bath
Concentration is 20g/L, and sodium sulfate concentration 350g/L, the temperature of acid bath is 55 DEG C；Drawing-off, modeling are successively carried out after spinning again
Change cutting, pickling, sodium sulfite desulfurization, is washed, is oiled with stoving process to get the composite fibre comprising gold and silver boisiana extract.
Embodiment 3
The present embodiment provides a kind of preparation methods of composite fibre comprising gold and silver boisiana extract, include the following steps:
(1) it prepares gold and silver boisiana extract mixed solution: taking gold and silver boisiana extract, neopelex, poly alkyl alcohol
Ether and dimethylol urea sequentially add in water, the gold and silver boisiana extract, neopelex, aliphatic alcohol polyether, dihydroxy
Methylurea and the weight ratio of water are 1:0.014:0.007:3.3:4, are heated to 45 DEG C after evenly mixing and keep the temperature 45min, finish
After pass sequentially through 300 mesh, 400 mesh and 500 mesh filter screens filtering, remove bottom residues, take supernatant, obtain gold and silver boisiana extract mixing
Solution；
(2) it prepares rayon spinning liquid: short silk wood pulps is impregnated in sodium hydroxide solution；Then through squeezing, powder
Broken and experienced technique obtains the alkali cellulose that cuprammonium viscosity is 80mPas；When then at yellow technique, addition accounts for alpha cellulose weight
Amount controls that yellow initial temperature is 27 DEG C, final temperature is 31 DEG C than being 31% carbon disulfide, obtains cellulose xanthate；
Last cellulose xanthate obtains that content of alphacellulose is 9.13wt.%, alkali content is through dissolution, filtering and deaeration technique
The rayon spinning liquid that 4.98wt.%, viscosity are 64s and degree of ripeness is 15ml；
(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) and rayon spinning liquid obtained by step (2) are passed through
Even injection mixing before spinning, wherein gold and silver boisiana extract and first kind in rayon spinning liquid are fine in gold and silver boisiana extract mixed solution
The weight ratio of dimension element is 0.08:1, after carry out acid bath wet spinning, sulfuric acid concentration is 80g/L, zinc sulfate in the acid bath
Concentration is 5g/L, and sodium sulfate concentration 260g/L, the temperature of acid bath is 45 DEG C；After spinning again successively carry out drawing-off, plasticizing,
Cutting pickling, sodium sulfite desulfurization, is washed, is oiled with stoving process to get the composite fibre comprising gold and silver boisiana extract.
Embodiment 4
The present embodiment provides a kind of preparation methods of composite fibre comprising gold and silver boisiana extract, include the following steps:
(1) it prepares gold and silver boisiana extract mixed solution: taking gold and silver boisiana extract, neopelex, poly alkyl alcohol
Ether and dimethylol ethylene urea sequentially add in water, the gold and silver boisiana extract, neopelex, poly alkyl alcohol
The weight ratio of ether, dimethylol ethylene urea and water is 1:0.01:0.005:2:4, is heated to 20 DEG C after evenly mixing and keeps the temperature
120min, after pass sequentially through 300 mesh, 400 mesh and 500 mesh filter screens filtering, remove bottom residues, take supernatant, obtain gold and silver
Boisiana extract mixed solution；
(2) it prepares rayon spinning liquid: short silk wood pulps is impregnated in sodium hydroxide solution；Then through squeezing, powder
Broken and experienced technique obtains the alkali cellulose that cuprammonium viscosity is 82mPas；When then at yellow technique, addition accounts for alpha cellulose weight
Amount controls that yellow initial temperature is 24 DEG C, final temperature is 29 DEG C than being 28% carbon disulfide, obtains cellulose xanthate；
Last cellulose xanthate obtains that content of alphacellulose is 8.85wt.%, alkali content is through dissolution, filtering and deaeration technique
The rayon spinning liquid that 4.76wt.%, viscosity are 52s and degree of ripeness is 11ml；
(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) and rayon spinning liquid obtained by step (2) are passed through
Even injection mixing before spinning, wherein gold and silver boisiana extract and first kind in rayon spinning liquid are fine in gold and silver boisiana extract mixed solution
The weight ratio of dimension element is 0.013:1, after carry out acid bath wet spinning, sulfuric acid concentration is 80g/L, zinc sulfate in the acid bath
Concentration is 5g/L, and sodium sulfate concentration 260g/L, the temperature of acid bath is 45 DEG C；After spinning again successively carry out drawing-off, plasticizing,
Cutting pickling, sodium sulfite desulfurization, is washed, is oiled with stoving process to get the composite fibre comprising gold and silver boisiana extract.
Embodiment 5
(1) it prepares gold and silver boisiana extract mixed solution: taking gold and silver boisiana extract, neopelex, poly alkyl alcohol
Ether, dimethylol urea and dimethylol ethylene urea sequentially add in water, the gold and silver boisiana extract, dodecyl benzene sulfonic acid
Sodium, aliphatic alcohol polyether, the combination of dimethylol urea and dimethylol ethylene urea and water weight ratio be 1:0.05:0.05:8:
5, be heated to 80 DEG C after evenly mixing and keep the temperature 30min, after pass sequentially through 300 mesh, 400 mesh and 500 mesh filter screens filtering, go
Except bottom residues, supernatant is taken, obtains gold and silver boisiana extract mixed solution；
(2) it prepares rayon spinning liquid: short silk wood pulps is impregnated in sodium hydroxide solution；Then through squeezing, powder
Broken and experienced technique obtains the alkali cellulose that cuprammonium viscosity is 80mPas；When then at yellow technique, addition accounts for alpha cellulose weight
Amount controls that yellow initial temperature is 28 DEG C, final temperature is 33 DEG C than being 36% carbon disulfide, obtains cellulose xanthate；
Last cellulose xanthate obtains that content of alphacellulose is 8.89wt.%, alkali content is through dissolution, filtering and deaeration technique
The rayon spinning liquid that 4.89wt.%, viscosity are 54s and degree of ripeness is 12ml；
(3) spinning: gold and silver boisiana extract mixed solution obtained by step (1) and rayon spinning liquid obtained by step (2) are passed through
Even injection mixing before spinning, wherein gold and silver boisiana extract and first kind in rayon spinning liquid are fine in gold and silver boisiana extract mixed solution
The weight ratio of dimension element is 0.267:1, after carry out acid bath wet spinning, sulfuric acid concentration is 80g/L, zinc sulfate in the acid bath
Concentration is 5g/L, and sodium sulfate concentration 260g/L, the temperature of acid bath is 45 DEG C；After spinning again successively carry out drawing-off, plasticizing,
Cutting pickling, sodium sulfite desulfurization, is washed, is oiled with stoving process to get the composite fibre comprising gold and silver boisiana extract.
It is measured with reference to the resulting composite fibre performance of 14463~2008 pairs of Examples 1 to 5 of GB/T, and calculates gold and silver
The content of boisiana extract, the results are shown in Table 1.
The resulting composite fibre correlated performance result of 1 Examples 1 to 5 of table
Conclusion: the resulting composite fibre comprising gold and silver boisiana extract of Examples 1 to 5 have excellent dry breaking strength,
Wet breaking strength and dry elongation at break, wherein dry breaking strength is up to 2.35~2.38CN/dtex, wet breaking strength up to 1.28
~1.36CN/dtex, dry elongation at break are up to 17.3~20.5%.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of preparation method of the composite fibre comprising gold and silver boisiana extract, which comprises the steps of:
(1) it prepares gold and silver boisiana extract mixed solution: taking gold and silver boisiana extract, dispersing agent and crosslinking agent to sequentially add in water,
Heat and keep the temperature after even mixing, after filter, take supernatant, obtain gold and silver boisiana extract mixed solution；
(2) it prepares rayon spinning liquid: by pulp through dipping, squeezing, crushing, experienced, yellow, dissolution, filtering and deaeration technique, obtaining
Rayon spinning liquid；
(3) spinning: rayon spinning liquid obtained by gold and silver boisiana extract mixed solution obtained by step (1) and step (2) is passed through before spinning
Even injection mixing, after carry out spinning up to the composite fibre comprising gold and silver boisiana extract.
2. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that step
(1) in, the dispersing agent is the mixture of neopelex and aliphatic alcohol polyether；The gold and silver boisiana extract, 12
Sodium alkyl benzene sulfonate, aliphatic alcohol polyether, crosslinking agent and water weight ratio be 1:0.01~0.05:0.005~0.05:2~8:3~
5。
3. the preparation method of the composite fibre according to claim 2 comprising gold and silver boisiana extract, which is characterized in that step
(1) in, the crosslinking agent is that fatty acid alkyl alcohol amide, propylene glycol diglycidylether, dimethylol urea or dihydroxymethyl are sub-
Any one or the combination of several of them in ethyl carbamide.
4. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that step
(2) in, the cuprammonium viscosity of the experienced obtained alkali cellulose is 75~85mPas.
5. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that step
(2) in, the initial temperature of the yellow is 24~28 DEG C, and final temperature is 29~33 DEG C.
6. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that step
(2) in, the weight ratio of carbon disulfide and alpha cellulose is 0.28~0.36:1 in the yellowing processes.
7. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that step
(2) in, content of alphacellulose is 8.65~9.13wt.% in the rayon spinning liquid, and alkali content is 4.7~4.98wt.%,
Viscosity is 52~64s, and degree of ripeness is 11~15ml.
8. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that step
(3) in, gold and silver boisiana extract and the weight ratio of alpha cellulose in rayon spinning liquid are in gold and silver boisiana extract mixed solution
0.013~0.267:1.
9. the preparation method of the composite fibre according to claim 1 comprising gold and silver boisiana extract, which is characterized in that also wrap
Include post-processing step: after spinning, successively carrying out drawing-off, plasticizing, cutting, refining and baking step, after include gold
The composite fibre of silvernine extract.
10. the composite fibre comprising gold and silver boisiana extract that any one of claim 1~9 is prepared.
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| CN112323165A (en) * | 2020-11-06 | 2021-02-05 | 郑州诺肯新材料科技有限公司 | Preparation method of hemp tea fiber |
| CN113337904A (en) * | 2021-07-02 | 2021-09-03 | 青岛正信隆纺织科技有限公司 | Composite fiber containing lycium ruthenicum extract and preparation method |
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| CN110820334A (en) * | 2019-12-06 | 2020-02-21 | 杭州优标科技有限公司 | Composite fiber containing wheat protein and preparation method thereof |
| CN111394818A (en) * | 2020-04-07 | 2020-07-10 | 江苏金太阳纺织科技股份有限公司 | Liquorice regenerated cellulose fiber and preparation method thereof |
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| TWI829030B (en) * | 2020-10-30 | 2024-01-11 | 香港商唯革思生物科技（香港）有限公司 | Fruit extract leather and preparation method thereof |
| CN112323165A (en) * | 2020-11-06 | 2021-02-05 | 郑州诺肯新材料科技有限公司 | Preparation method of hemp tea fiber |
| CN113337904A (en) * | 2021-07-02 | 2021-09-03 | 青岛正信隆纺织科技有限公司 | Composite fiber containing lycium ruthenicum extract and preparation method |
| CN114318572A (en) * | 2022-03-09 | 2022-04-12 | 宜宾惠美纤维新材料股份有限公司 | Protein fiber and preparation method thereof |
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