CN113337904A - Composite fiber containing lycium ruthenicum extract and preparation method - Google Patents
Composite fiber containing lycium ruthenicum extract and preparation method Download PDFInfo
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- CN113337904A CN113337904A CN202110748088.5A CN202110748088A CN113337904A CN 113337904 A CN113337904 A CN 113337904A CN 202110748088 A CN202110748088 A CN 202110748088A CN 113337904 A CN113337904 A CN 113337904A
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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
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
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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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a preparation method of composite fiber containing lycium ruthenicum extract, and particularly relates to the field of light industrial textile, which comprises the following steps: s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution; s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin; s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column; s4, concentration: and (4) concentrating the eluent obtained in the step (S3) under reduced pressure to obtain an extract of the lycium ruthenicum fruit. According to the invention, the lycium ruthenicum extract is added, so that the anthocyanin in the lycium ruthenicum extract is very rich, and the anthocyanin is a natural sunlight covering substance and can prevent ultraviolet rays from invading skin, so that the prepared composite fiber has an ultraviolet-resistant function.
Description
Technical Field
The invention relates to the technical field of light industry textile, in particular to a composite fiber containing lycium ruthenicum extract and a preparation method thereof.
Background
At present, the trend of manufacturing various functional fibers by using plant traditional Chinese medicine extracts is gradually changed, such as honeysuckle fibers, wormwood fibers, sarcandra glabra fibers and the like, the plant traditional Chinese medicine extracts are blended into the fibers, the original characteristics of the fibers can be maintained, the unique functions of the plant traditional Chinese medicines can be compounded into the fibers, the fiber connotation is enriched, and the application space in the fields of clothing, home textiles and the like is increased.
Lycium ruthenicum Murr is a perennial salt-resistant drought-resistant shrub plant of Lycium of Solanaceae, Lycium ruthenicum Murr fruit mainly grows in a saline-alkali desert area in the northwest plateau area of China, and the Tibetan medicine is called as the fruit of the 'Bima', and can be used for treating diseases such as heart disease, irregular menstruation and menopause of the Lycium ruthenicum Murr fruit according to the classical records of Tibetan medicines such as the Lycium ruthenicum Murr fruit of four medical classics and the Lycium ruthenicum Murr fruit of Jingzhuicao materia. The natural anthocyanin compound can eliminate excessive free radicals generated in the metabolic process of a human body, the lycium ruthenicum fruit has stronger active oxygen harm prevention and antioxidant activity and plays an important role in preventing and treating diseases, researches over decades find that anthocyanin has a plurality of benefits on the health of the human body, the anthocyanin is a natural sunlight covering substance and can prevent ultraviolet rays from invading the skin, and the anthocyanin in the lycium ruthenicum is very rich, so that the composite fiber containing the lycium ruthenicum extract and the preparation method are provided.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a composite fiber containing lycium ruthenicum extract and a preparation method thereof, so as to solve the problems mentioned in the above background art.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of composite fiber containing Lycium ruthenicum Murr extract comprises the following steps:
s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution;
s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin;
s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column;
s4, concentration: concentrating the eluent obtained in the step S3 under reduced pressure to obtain an extract of the lycium ruthenicum fruit;
s5, drying: drying the lycium ruthenicum fruit extract obtained in the step S4 to obtain the lycium ruthenicum extract;
s6, preparing a lycium ruthenicum extract mixed solution: sequentially adding the lycium ruthenicum extract, a dispersing agent and a cross-linking agent into water, uniformly mixing, heating and preserving heat, filtering after the mixing is finished, and taking supernatant to obtain a lycium ruthenicum extract mixed solution;
s7, preparing a viscose spinning solution: treating cotton pulp or wood pulp as a raw material to obtain viscose spinning solution;
s8, spinning: and (4) uniformly mixing the lycium ruthenicum extract mixed solution obtained in the step (S6) with the viscose spinning solution obtained in the step (S7) through pre-spinning injection, and spinning to obtain the lycium ruthenicum extract-containing composite fiber.
Further, the dispersing agent is sodium dodecyl benzene sulfonate and fatty alcohol polyether, the adding proportion of the sodium dodecyl benzene sulfonate is 1.2-5% of the total weight of the lycium ruthenicum extract, and the adding proportion of the fatty alcohol polyether is 0.7-5% of the total weight of the lycium ruthenicum extract.
Further, the cross-linking agent is one or more of fatty acid alkylolamide, propylene glycol diglycidyl ether, dimethylol urea and dimethylol ethylene urea, and the addition amount of the cross-linking agent is 2-7 times of the total weight of the lycium ruthenicum extract.
Further, the processing in step S7 includes dipping, squeezing, crushing, aging, yellowing, dissolving, filtering, and defoaming in this order.
Furthermore, the addition amount of the carbon disulfide in the yellowing process is 25-35 wt% of the content of the methyl fiber in the viscose spinning solution.
Further, the yellowing is carried out at an initial temperature of 24-27 ℃ and a final temperature of 29-34 ℃.
Further, in the step S7, the content of alpha cellulose in the viscose spinning solution is 8.62 to 9.15 wt.%, the content of alkali is 4.6 to 4.96 wt.%, the viscosity is 50 to 65S, and the ripening degree is 12 to 15 ml.
Further, the spinning method in the step S8 is an acid bath wet spinning forming method, and the acid bath includes: 80-120 g/L of sulfuric acid, 6-20 g/L of zinc sulfate and 250-350 g/L of sodium sulfate; the temperature of the acid bath is 46-54 ℃.
Further, the method also comprises the following post-processing steps: and after spinning is finished, sequentially carrying out the steps of drafting, plasticizing, cutting, refining and drying to obtain the composite fiber containing the lycium ruthenicum extract.
The invention also provides the composite fiber prepared by the preparation method of the composite fiber containing the lycium ruthenicum extract.
The invention has the technical effects and advantages that:
according to the invention, the lycium ruthenicum extract is added, so that the anthocyanin in the lycium ruthenicum extract is very rich, and the anthocyanin is a natural sunlight covering substance and can prevent ultraviolet rays from invading skin, so that the prepared composite fiber has an ultraviolet-resistant function.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a preparation method of composite fiber containing lycium ruthenicum extract, which comprises the following steps:
s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution;
s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin;
s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column;
s4, concentration: concentrating the eluent obtained in the step S3 under reduced pressure to obtain an extract of the lycium ruthenicum fruit;
s5, drying: drying the lycium ruthenicum fruit extract obtained in the step S4 to obtain a lycium ruthenicum extract;
s6, preparing a lycium ruthenicum extract mixed solution: sequentially adding the lycium ruthenicum extract, a dispersing agent and a cross-linking agent into water, uniformly mixing, heating and preserving heat, filtering after the mixing is finished, and taking supernatant to obtain a lycium ruthenicum extract mixed solution;
s7, preparing a viscose spinning solution: the method comprises the following steps of taking cotton pulp or wood pulp as a raw material, and carrying out processes of dipping, squeezing, crushing, ageing, yellowing, dissolving, filtering and defoaming to obtain a viscose spinning solution, wherein the content of alpha cellulose in the viscose spinning solution is 8.62-9.15 wt.%, the content of alkali in the viscose spinning solution is 4.6-4.96 wt.%, the viscosity is 50-65 s, and the ripening degree is 12-15 ml;
the adding amount of the carbon disulfide in the yellowing process is 25-35 wt% of the content of the methyl fiber in the viscose spinning solution, the initial temperature of the yellowing is 24-27 ℃, and the termination temperature is 29-34 ℃;
s8, spinning: and (4) uniformly mixing the lycium ruthenicum extract mixed solution obtained in the step (S6) with the viscose spinning solution obtained in the step (S7) through injection before spinning, and spinning after the spinning is finished, wherein the spinning method is an acid bath wet spinning forming method, and the acid bath comprises the following steps: 80-120 g/L of sulfuric acid, 6-20 g/L of zinc sulfate and 250-350 g/L of sodium sulfate; and (3) the temperature of the acid bath is 46-54 ℃, and after spinning is finished, the steps of drafting, plasticizing, cutting, refining and drying are sequentially carried out, so that the composite fiber containing the lycium ruthenicum extract is obtained.
Wherein the dispersing agent is sodium dodecyl benzene sulfonate and fatty alcohol polyether, the adding proportion of the sodium dodecyl benzene sulfonate is 1.2-5% of the total weight of the lycium ruthenicum extract, and the adding proportion of the fatty alcohol polyether is 0.7-5% of the total weight of the lycium ruthenicum extract;
the cross-linking agent is one or more of fatty acid alkylolamide, propylene glycol diglycidyl ether, dimethylol urea and dimethylol ethylene urea, and the addition amount of the cross-linking agent is 2-7 times of the total weight of the lycium ruthenicum extract.
The invention also provides the composite fiber prepared by the preparation method of the composite fiber containing the lycium ruthenicum extract.
Example 1
A preparation method of composite fiber containing Lycium ruthenicum Murr extract comprises the following steps:
s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution;
s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin;
s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column;
s4, concentration: concentrating the eluent obtained in the step S3 under reduced pressure to obtain an extract of the lycium ruthenicum fruit;
s5, drying: drying the lycium ruthenicum fruit extract obtained in the step S4 to obtain a lycium ruthenicum extract;
s6, preparing a lycium ruthenicum extract mixed solution: sequentially adding the lycium ruthenicum extract, a dispersing agent and a cross-linking agent into water, uniformly mixing, heating and preserving heat, filtering after the mixing is finished, and taking supernatant to obtain a lycium ruthenicum extract mixed solution;
s7, preparing a viscose spinning solution: the preparation method comprises the following steps of taking cotton pulp or wood pulp as a raw material, and carrying out processes of dipping, squeezing, crushing, ageing, yellowing, dissolving, filtering and defoaming to obtain a viscose spinning solution, wherein the content of alpha cellulose in the viscose spinning solution is 8.62 wt.%, the content of alkali in the viscose spinning solution is 4.6 wt.%, the viscosity of the viscose spinning solution is 50s, and the maturity of the viscose spinning solution is 12 ml;
the adding amount of the carbon disulfide in the yellowing process is 25 wt% of the content of the methyl fiber in the viscose spinning solution, the initial temperature of the yellowing is 24 ℃, and the termination temperature is 29 ℃;
s8, spinning: and (4) uniformly mixing the lycium ruthenicum extract mixed solution obtained in the step (S6) with the viscose spinning solution obtained in the step (S7) through injection before spinning, and spinning after the spinning is finished, wherein the spinning method is an acid bath wet spinning forming method, and the acid bath comprises the following steps: 80g/L of sulfuric acid, 6g/L of zinc sulfate and 250g/L of sodium sulfate; the temperature of the acid bath is 46 ℃, and after spinning is finished, the steps of drafting, plasticizing, cutting, refining and drying are sequentially carried out, so that the composite fiber containing the lycium ruthenicum extract is obtained.
Wherein, the dispersing agent is sodium dodecyl benzene sulfonate and fatty alcohol polyether, the adding proportion of the sodium dodecyl benzene sulfonate is 1.2 percent of the total weight of the lycium ruthenicum extract, and the adding proportion of the fatty alcohol polyether is 0.7 percent of the total weight of the lycium ruthenicum extract;
the cross-linking agent is one or more of fatty acid alkylolamide, propylene glycol diglycidyl ether, dimethylol urea and dimethylol ethylene urea, and the addition amount of the cross-linking agent is 2 times of the total weight of the lycium ruthenicum extract.
The invention also provides the composite fiber prepared by the preparation method of the composite fiber containing the lycium ruthenicum extract.
Example 2
A preparation method of composite fiber containing Lycium ruthenicum Murr extract comprises the following steps:
s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution;
s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin;
s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column;
s4, concentration: concentrating the eluent obtained in the step S3 under reduced pressure to obtain an extract of the lycium ruthenicum fruit;
s5, drying: drying the lycium ruthenicum fruit extract obtained in the step S4 to obtain a lycium ruthenicum extract;
s6, preparing a lycium ruthenicum extract mixed solution: sequentially adding the lycium ruthenicum extract, a dispersing agent and a cross-linking agent into water, uniformly mixing, heating and preserving heat, filtering after the mixing is finished, and taking supernatant to obtain a lycium ruthenicum extract mixed solution;
s7, preparing a viscose spinning solution: the preparation method comprises the following steps of taking cotton pulp or wood pulp as a raw material, and carrying out processes of dipping, squeezing, crushing, ageing, yellowing, dissolving, filtering and defoaming to obtain a viscose spinning solution, wherein the content of alpha cellulose in the viscose spinning solution is 9.15 wt.%, the content of alkali in the viscose spinning solution is 4.96 wt.%, the viscosity of the viscose spinning solution is 65s, and the maturity of the viscose spinning solution is 15 ml;
the adding amount of the carbon disulfide in the yellowing process is 35 wt% of the content of the methyl fiber in the viscose spinning solution, the initial temperature of the yellowing is 27 ℃, and the termination temperature is 34 ℃;
s8, spinning: and (4) uniformly mixing the lycium ruthenicum extract mixed solution obtained in the step (S6) with the viscose spinning solution obtained in the step (S7) through injection before spinning, and spinning after the spinning is finished, wherein the spinning method is an acid bath wet spinning forming method, and the acid bath comprises the following steps: 120g/L of sulfuric acid, 20g/L of zinc sulfate and 350g/L of sodium sulfate; the temperature of the acid bath is 54 ℃, and after spinning is finished, the steps of drafting, plasticizing, cutting, refining and drying are sequentially carried out, so that the composite fiber containing the lycium ruthenicum extract is obtained.
Wherein the dispersing agent is sodium dodecyl benzene sulfonate and fatty alcohol polyether, the adding proportion of the sodium dodecyl benzene sulfonate is 5 percent of the total weight of the lycium ruthenicum extract, and the adding proportion of the fatty alcohol polyether is 5 percent of the total weight of the lycium ruthenicum extract;
the cross-linking agent is one or more of fatty acid alkylolamide, propylene glycol diglycidyl ether, dimethylol urea and dimethylol ethylene urea, and the addition amount of the cross-linking agent is 7 times of the total weight of the lycium ruthenicum extract.
The invention also provides the composite fiber prepared by the preparation method of the composite fiber containing the lycium ruthenicum extract.
Example 3
A preparation method of composite fiber containing Lycium ruthenicum Murr extract comprises the following steps:
s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution;
s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin;
s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column;
s4, concentration: concentrating the eluent obtained in the step S3 under reduced pressure to obtain an extract of the lycium ruthenicum fruit;
s5, drying: drying the lycium ruthenicum fruit extract obtained in the step S4 to obtain a lycium ruthenicum extract;
s6, preparing a lycium ruthenicum extract mixed solution: sequentially adding the lycium ruthenicum extract, a dispersing agent and a cross-linking agent into water, uniformly mixing, heating and preserving heat, filtering after the mixing is finished, and taking supernatant to obtain a lycium ruthenicum extract mixed solution;
s7, preparing a viscose spinning solution: the preparation method comprises the following steps of taking cotton pulp or wood pulp as a raw material, and carrying out processes of dipping, squeezing, crushing, ageing, yellowing, dissolving, filtering and defoaming to obtain a viscose spinning solution, wherein the content of alpha cellulose in the viscose spinning solution is 8.9 wt.%, the content of alkali in the viscose spinning solution is 4.8 wt.%, the viscosity of the viscose spinning solution is 58s, and the maturity of the viscose spinning solution is 13 ml;
the adding amount of the carbon disulfide in the yellowing process is 30 wt% of the content of the methyl fiber in the viscose spinning solution, the initial temperature of the yellowing is 25 ℃, and the termination temperature is 32 ℃;
s8, spinning: and (4) uniformly mixing the lycium ruthenicum extract mixed solution obtained in the step (S6) with the viscose spinning solution obtained in the step (S7) through injection before spinning, and spinning after the spinning is finished, wherein the spinning method is an acid bath wet spinning forming method, and the acid bath comprises the following steps: 100g/L of sulfuric acid, 13g/L of zinc sulfate and 300g/L of sodium sulfate; the temperature of the acid bath is 50 ℃, and after spinning is finished, the steps of drafting, plasticizing, cutting, refining and drying are sequentially carried out, so that the composite fiber containing the lycium ruthenicum extract is obtained.
Wherein the dispersing agent is sodium dodecyl benzene sulfonate and fatty alcohol polyether, the adding proportion of the sodium dodecyl benzene sulfonate is 3 percent of the total weight of the lycium ruthenicum extract, and the adding proportion of the fatty alcohol polyether is 3 percent of the total weight of the lycium ruthenicum extract;
the cross-linking agent is one or more of fatty acid alkylolamide, propylene glycol diglycidyl ether, dimethylol urea and dimethylol ethylene urea, and the addition amount of the cross-linking agent is 4 times of the total weight of the lycium ruthenicum extract.
The invention also provides the composite fiber prepared by the preparation method of the composite fiber containing the lycium ruthenicum extract.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. A preparation method of composite fiber containing Lycium ruthenicum Murr extract is characterized by comprising the following steps:
s1, extraction: adding an acid aqueous solution into the lycium ruthenicum fruit for extraction, and filtering and collecting an extracting solution;
s2, adsorption: adsorbing the extract obtained in the step S1 by a chromatographic column filled with macroporous resin;
s3, elution: eluting the chromatographic column adsorbing the lycium ruthenicum fruit extracting solution in the step S2 with water, eluting with eluent, and collecting eluent flowing out of the chromatographic column;
s4, concentration: concentrating the eluent obtained in the step S3 under reduced pressure to obtain an extract of the lycium ruthenicum fruit;
s5, drying: drying the lycium ruthenicum fruit extract obtained in the step S4 to obtain the lycium ruthenicum extract;
s6, preparing a lycium ruthenicum extract mixed solution: sequentially adding the lycium ruthenicum extract, a dispersing agent and a cross-linking agent into water, uniformly mixing, heating and preserving heat, filtering after the mixing is finished, and taking supernatant to obtain a lycium ruthenicum extract mixed solution;
s7, preparing a viscose spinning solution: treating cotton pulp or wood pulp as a raw material to obtain viscose spinning solution;
s8, spinning: and (4) uniformly mixing the lycium ruthenicum extract mixed solution obtained in the step (S6) with the viscose spinning solution obtained in the step (S7) through pre-spinning injection, and spinning to obtain the lycium ruthenicum extract-containing composite fiber.
2. The method of claim 1, wherein the composite fiber comprises an extract of lycium ruthenicum, and the method comprises the following steps: the dispersing agent is sodium dodecyl benzene sulfonate and fatty alcohol polyether, the adding proportion of the sodium dodecyl benzene sulfonate is 1.2-5% of the total weight of the lycium ruthenicum extract, and the adding proportion of the fatty alcohol polyether is 0.7-5% of the total weight of the lycium ruthenicum extract.
3. The method of claim 1, wherein the composite fiber comprises an extract of lycium ruthenicum, and the method comprises the following steps: the cross-linking agent is one or more of fatty acid alkylolamide, propylene glycol diglycidyl ether, dimethylol urea and dimethylol ethylene urea, and the addition amount of the cross-linking agent is 2-7 times of the total weight of the lycium ruthenicum extract.
4. The method of claim 1, wherein the composite fiber comprises an extract of lycium ruthenicum, and the method comprises the following steps: the processing in step S7 includes dipping, squeezing, crushing, aging, yellowing, dissolving, filtering, and defoaming in this order.
5. The method of claim 4, wherein the composite fiber comprises an extract of Lycium ruthenicum Murr: the addition amount of the carbon disulfide in the yellowing process is 25-35 wt% of the content of the methyl fiber in the viscose spinning solution.
6. The method of claim 4, wherein the composite fiber comprises an extract of Lycium ruthenicum Murr: the yellowing is carried out at an initial temperature of 24-27 ℃ and a final temperature of 29-34 ℃.
7. The method of claim 1, wherein the composite fiber comprises an extract of lycium ruthenicum, and the method comprises the following steps: in the step S7, the content of alpha cellulose in the viscose spinning solution is 8.62-9.15 wt.%, the content of alkali is 4.6-4.96 wt.%, the viscosity is 50-65S, and the ripening degree is 12-15 ml.
8. The method of claim 1, wherein the composite fiber comprises an extract of lycium ruthenicum, and the method comprises the following steps: the spinning method in the step S8 is an acid bath wet spinning forming method, and the acid bath includes: 80-120 g/L of sulfuric acid, 6-20 g/L of zinc sulfate and 250-350 g/L of sodium sulfate; the temperature of the acid bath is 46-54 ℃.
9. The method of claim 1, further comprising a post-treatment step of: and after spinning is finished, sequentially carrying out the steps of drafting, plasticizing, cutting, refining and drying to obtain the composite fiber containing the lycium ruthenicum extract.
10. A composite fiber comprising an extract of lycium ruthenicum mill, wherein the composite fiber is prepared by the method according to any one of claims 1-9.
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| CN103340983A (en) * | 2013-07-02 | 2013-10-09 | 青海玉辰堂生物科技有限公司 | Lycium ruthenicum fruit extract as well as preparation method and application thereof |
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Application publication date: 20210903 |