CN114775088A - Soybean protein plant traditional Chinese medicine multifunctional viscose fiber and preparation method thereof - Google Patents
Soybean protein plant traditional Chinese medicine multifunctional viscose fiber and preparation method thereof Download PDFInfo
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- CN114775088A CN114775088A CN202210503165.5A CN202210503165A CN114775088A CN 114775088 A CN114775088 A CN 114775088A CN 202210503165 A CN202210503165 A CN 202210503165A CN 114775088 A CN114775088 A CN 114775088A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 32
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- 239000000284 extract Substances 0.000 claims abstract description 74
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Classifications
-
- 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 invention discloses a soybean protein plant traditional Chinese medicine multifunctional viscose fiber and a preparation method thereof, and relates to the technical field of functional fibers. When the multifunctional viscose fiber of the soybean protein plant traditional Chinese medicine is prepared, urea is used for carrying out an ultrasonic-assisted viscose process on alpha cellulose to form polyamide, and viscose fiber spinning solution with a porous structure is prepared; mixing the soybean protein and cysteine to prepare a soybean protein solution; finally, blending and spinning the soybean protein solution, the viscose fiber spinning stock solution and the plant traditional Chinese medicine extract solution containing the myrtle extract to form Schiff base, and preparing the soybean protein plant traditional Chinese medicine multifunctional viscose fiber; the soybean protein plant traditional Chinese medicine multifunctional viscose fiber prepared by the invention has good antibacterial and anti-mite properties, health care and skin care properties, water washing resistance and high strength of the fiber.
Description
Technical Field
The invention relates to the technical field of functional fibers, in particular to a soybean protein plant traditional Chinese medicine multifunctional viscose fiber and a preparation method thereof.
Background
The soybean protein contains various amino acids, has a certain health care effect on human bodies, and the fabric has smooth hand feeling, good drapability and silk fabric style, and is widely popular with consumers. The plant traditional Chinese medicine extract is a product prepared by directionally obtaining a certain component from the plant traditional Chinese medicine by adopting a certain extraction method. The plant traditional Chinese medicine extract has the advantages of biocompatibility, degradability and the like, and also has the functions of antibiosis, mite prevention, mildew prevention and the like. Cellulose is a macromolecular polysaccharide composed of glucose, is the main component of plant cell walls, is also a polysaccharide which is widely distributed and has the largest content in nature, and accounts for more than 50 percent of the carbon content in plants.
In the prior art, for example, patent CN1314844C discloses a traditional Chinese medicine modified fiber and a preparation method thereof, and patent CN 105603557 a discloses a traditional Chinese medicine health-care regenerated cellulose fiber and a preparation method thereof, which are mainly characterized in that plant traditional Chinese medicine powder and extract are added into a viscose spinning solution according to a certain proportion, the prepared viscose fiber has weak mechanical property, and the loss of traditional Chinese medicine extract auxiliary agent after multiple water washing is serious, so that the technical problem to be solved in the technical field of functional fiber at present is solved.
The method pays attention to the current situation, and the viscose fiber spinning solution is prepared by carrying out ultrasonic-assisted viscose process on alpha cellulose by utilizing urea; mixing the soybean protein and cysteine to prepare a soybean protein solution; finally, the multifunctional viscose fiber of the soybean protein plant traditional Chinese medicine is prepared by blending a soybean protein solution, a viscose fiber spinning solution and a plant traditional Chinese medicine extract solution by a wet spinning method to solve the problems.
Disclosure of Invention
The invention aims to provide a soybean protein plant traditional Chinese medicine multifunctional viscose fiber and a preparation method thereof, and aims to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
a preparation method of a soybean protein plant traditional Chinese medicine multifunctional viscose fiber is provided, wherein the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is prepared by blending and spinning soybean protein, viscose fiber spinning dope and plant traditional Chinese medicine extract solution; the soybean protein solution is prepared by mixing soybean protein and cysteine; the viscose fiber spinning solution is prepared by carrying out ultrasonic-assisted viscose process on alpha cellulose by using urea; the plant Chinese medicinal extract solution is prepared by mixing Kochiae fructus extract, herba Sophorae Alopecuroidis extract, and myrtle extract.
Preferably, the preparation method of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber comprises the following steps: spinning the blended spinning solution by using a screw extruder at a spinning speed of 800-1000 m/min, sequentially introducing 800-1000 m/min into a coagulating bath liquid at 45-55 ℃, a desulfurizing bath liquid at 65-85 ℃ and an oil bath liquid at 45-55 ℃ for treatment, and drying at 95-105 ℃ for 30-50 min to prepare the multifunctional soybean protein plant traditional Chinese medicine viscose fiber.
Preferably, the content of characteristic substance soybean isoflavone in the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is 10-200 ppm.
Preferably, the coagulating bath liquid comprises 95-105 parts by weight of sulfuric acid, 290-300 parts by weight of sodium sulfate and 600-800 parts by weight of deionized water; the desulfurization bath solution comprises 4-6 parts by weight of sodium sulfite and 900-1100 parts by weight of deionized water; the oil bath liquid is silicone oil.
Preferably, the preparation method of the blended spinning solution comprises the following steps: at the temperature of 60-80 ℃, mixing a soybean protein solution, a viscose spinning stock solution and a plant traditional Chinese medicine extract solution according to the mass ratio of 1: 3: 0.6-1: 5: 0.8, dripping concentrated sulfuric acid with the mass fraction of 98% and the mass fraction of 0.003-0.005 times of that of the viscose fiber spinning solution at 30-40 drops/min, stirring for 2-4 h at 1200-1300 r/min, and defoaming for 30-50 min under the condition of 10-20 Pa to prepare the blended spinning solution.
Preferably, the preparation method of the soy protein solution is as follows: under the temperature of 40-60 ℃, mixing soybean protein and 3-6% of sodium hydroxide aqueous solution according to the mass ratio of 1: 9-1: 12, stirring for 5-10 min at a speed of 200-400 r/min, adding cysteine with the mass of 0.0003-0.003 time of the weight of the soybean protein, and continuously stirring for 10-20 min to prepare the soybean protein solution.
Preferably, the soy protein is characterized by soy isoflavones; the content of the soybean isoflavone is 10-200 ppm.
Preferably, the preparation method of the viscose fiber spinning solution is as follows: at the temperature of 19-21 ℃, mixing alpha cellulose and a sodium hydroxide solution with the mass fraction of 18-20% according to the mass ratio of 1: 2-1: 4, mixing, stirring for 40-60 min at 500-700 r/min, then performing filter pressing, crushing, sieving with a 800-1000 mesh sieve, and performing filtration at 60-80 ℃ and 0.6-0.8 MPa for 2-3 m3Introducing carbon disulfide for 2-3 h/min, adding urea with the mass of 0.04-0.06 times of that of alpha cellulose and ethanol with the mass of 10-20 times of that of the alpha cellulose, performing ultrasonic treatment for 30-40 min at 30-40 kHz, and standing for 11-13 h while maintaining the temperature to prepare the viscose fiber spinning solution.
Preferably, the preparation method of the plant traditional Chinese medicine extract solution comprises the following steps: adjusting the pH value of deionized water to 7.0-8.0 by using a sodium hydroxide aqueous solution with the mass fraction of 0.3% -0.6% at 45-55 ℃, and stirring for 5-15 min at 200-400 r/min to prepare weakly alkaline deionized water; then, mixing the plant traditional Chinese medicine extract and weakly alkaline deionized water according to the mass ratio of 1: 0.15-1: 0.2, stirring for 1.5-2.5 h at 600-800 r/min, cooling to 20-25 ℃ at 3-4 ℃/min, and filtering to obtain the plant traditional Chinese medicine extract solution.
Preferably, the plant traditional Chinese medicine extract comprises, by weight, 40-50 parts of broom cypress fruit seed extract, 30-50 parts of sophora alopecuroide extract and 10-20 parts of myrtle extract.
Compared with the prior art, the invention has the following beneficial effects:
when the multifunctional traditional Chinese medicine viscose fiber of the soybean protein plant is prepared, urea is used for carrying out an ultrasonic-assisted viscose process on alpha cellulose to prepare viscose fiber spinning stock solution; mixing the soybean protein and cysteine to prepare a soybean protein solution; finally, blending and spinning the soybean protein solution, the viscose spinning dope and the plant traditional Chinese medicine extract solution to prepare the soybean protein plant traditional Chinese medicine multifunctional viscose; wherein the plant Chinese medicinal extract solution is prepared by mixing Kochiae fructus extract, herba Sophorae Alopecuroidis extract, and Myrtle extract.
The multifunctional viscose fiber prepared from soybean protein plant traditional Chinese medicine is added with a plant traditional Chinese medicine extract solution prepared from a broom cypress seed extract, a sophora alopecuroides extract and a myrtle extract, so that the multifunctional viscose fiber prepared from soybean protein plant traditional Chinese medicine has antibacterial property and anti-mite effect; the broom cypress fruit seeds are rich in triterpenoid saponin, alkaloid, flavone and the like, have the effects of clearing heat and promoting diuresis, dispelling wind and relieving itching, inhibiting allergy, and have acaricidal and acaricidal effects; the main chemical components of the sophora alopecuroide are protein, sugar, organic acid, flavonoid, pigment and alkaloid, and the sophora alopecuroide has the effects of clearing away heat and toxic materials, resisting bacteria and diminishing inflammation, relieving pain and expelling mites, and the like; the main chemical components of the myrtle are flavonoids, phenolic compounds, tannin, amino acid, saccharides and the like, and the myrtle has the effects of promoting blood circulation, removing obstruction in collaterals, astringing, stopping diarrhea, tonifying deficiency, stopping bleeding and resisting bacteria. In addition, the contained phenols and tannin components can promote functional components in the soybean protein and the plant traditional Chinese medicine extract and cellulose molecules to mutually form hydroxyl or carboxyl, so that the acting force among macromolecules is enhanced, and the durability and the stability of the functions are kept.
Secondly, cysteine added in the soybean protein solution reacts with cysteine residues in the soybean protein to form a stable disulfide bond, so that the hydrolysis of the soybean protein is prevented, the protein content of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is ensured, and the skin care and health care performance of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is enhanced; urea is used for carrying out an ultrasonic-assisted viscose process on alpha cellulose, and amino in part of urea reacts with carboxyl oxidized by part of hydroxyl in the alpha cellulose for crosslinking to form polyamide, so that the fiber strength of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is enhanced; meanwhile, part of urea is decomposed under the action of acoustic cavitation to form ammonia gas, the ammonia gas escapes, a large number of pore channels are formed in a viscose fiber spinning solution, a soybean protein solution and a plant traditional Chinese medicine extract solution are quickly immersed into the viscose fiber spinning solution through the pore channels, cysteine in the soybean protein solution and tannic acid in a myrtle extract both contain carboxyl groups and react with part of hydroxyl groups in alpha cellulose for crosslinking, the soybean protein and the myrtle are stably grafted on the viscose fiber, and the water washing resistance of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is enhanced; the amino group on the cysteine reacts with the carbonyl group in the tannic acid for crosslinking to form Schiff base, so that the antibacterial performance of the multifunctional viscose fiber of the soybean protein plant traditional Chinese medicine is enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to more clearly illustrate the method provided by the present invention, the following examples are provided to illustrate the method, and the method for testing each index of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber prepared in the following examples is as follows:
antibacterial property: the soybean protein plant traditional Chinese medicine multifunctional viscose fibers prepared by the same mass of examples and comparative examples are taken, and the antibacterial property is determined by testing the escherichia coli bacteriostasis rate of the soybean protein plant traditional Chinese medicine multifunctional viscose fibers according to the GB/T20944.3 standard.
The anti-mite effect is as follows: the soybean protein plant traditional Chinese medicine multifunctional viscose fibers prepared in the same mass of the examples and the comparative examples are taken, and the mite repellent rate of the soybean protein plant traditional Chinese medicine multifunctional viscose fibers is tested according to the GB/T24346 standard to determine the mite prevention effect.
Skin care and health care: the soybean protein plant traditional Chinese medicine multifunctional viscose fibers prepared in the same mass examples and comparative examples are taken, and the skin care and health care properties are determined by testing the protein content of the soybean protein plant traditional Chinese medicine multifunctional viscose fibers according to the FZ/T50018 standard.
Water washing resistance: taking the soybean protein plant traditional Chinese medicine multifunctional viscose fibers prepared in the same quality embodiment and comparative example, respectively testing the escherichia coli inhibition rate, the mite repellent rate and the soybean protein characteristic soybean isoflavone content of the soybean protein plant traditional Chinese medicine multifunctional viscose fibers according to GB/T20944.3, GB/T24346 and FZ/T50018 after washing for 30 times, and comparing the escherichia coli inhibition rate, the mite repellent rate and the soybean protein characteristic soybean isoflavone content before and after washing to determine the water washing resistance.
Fiber strength: the soybean protein plant traditional Chinese medicine multifunctional viscose fibers prepared in the same mass of the examples and the comparative examples are taken, and the fiber strength is tested according to the ISO3060 standard.
Example 1
A preparation method of a soybean protein plant traditional Chinese medicine multifunctional viscose fiber comprises the following preparation steps:
(1) at 40 ℃, mixing soybean protein and a 3% sodium hydroxide aqueous solution according to the mass ratio of 1: 9, mixing, stirring at 200r/min for 5min, adding cysteine with the mass of 0.0003 time of the soybean protein, and continuously stirring for 10min to prepare a soybean protein solution;
(2) at room temperature, mixing Kochiae fructus extract, Sophora alopecuroides extract and Myrtus communis extract according to a mass ratio of 4: 3: 1, mixing, stirring at 200r/min for 20min to prepare the plant traditional Chinese medicine extract; adjusting the pH value of deionized water to 7.0 by using 0.3% sodium hydroxide aqueous solution at 45 ℃, and stirring for 5min at 200r/min to prepare weakly alkaline deionized water; then, mixing the plant traditional Chinese medicine extract and weakly alkaline deionized water according to the mass ratio of 1: 0.15 mixing, stirring at 600r/min for 1.5 hr, cooling at 3 deg.C/min to 20 deg.C, and filtering to obtain plant Chinese medicinal extract solution;
(3) at the temperature of 19 ℃, mixing alpha cellulose and a sodium hydroxide solution with the mass fraction of 18% according to the mass ratio of 1: 2 mixing, stirring at 500r/min for 40min, press filtering, pulverizing, sieving with 800 mesh sieve at 60 deg.C and 0.6MPa for 2m3Introducing carbon disulfide for 2 h/min, adding urea with the mass of 0.04 times of that of alpha cellulose and ethanol with the mass of 10 times of that of the alpha cellulose, performing ultrasonic treatment at 30kHz for 30min, and standing for 11h while keeping the temperature to prepare viscose fiber spinning stock solution; at the temperature of 60 ℃, mixing a soybean protein solution, a viscose spinning solution and a plant traditional Chinese medicine extract solution according to the mass ratio of 1: 3: 0.6, dripping concentrated sulfuric acid with the mass fraction of 98 percent, which is 0.003 time of the mass of the viscose fiber spinning solution, into the mixture at 30 drops/min, stirring the mixture for 2 hours at 1200r/min, defoaming the mixture for 30 minutes under the condition of 10Pa, and preparing the blended mixtureSpinning solution;
(4) at room temperature, mixing sulfuric acid, sodium sulfate and deionized water according to a mass ratio of 95: 290: 600, mixing, and stirring at 200r/min for 20min to obtain a coagulation bath solution; at room temperature, sodium sulfite and deionized water are mixed according to the mass ratio of 4: 900, stirring at 200r/min for 20min to prepare the desulfurization bath solution; spinning the blended spinning solution by using a screw extruder at the spinning speed of 800m/min, sequentially introducing the blended spinning solution into 45 ℃ coagulation bath solution, 65 ℃ desulfurization bath solution and 45 ℃ silicone oil at the spinning speed of 800m/min for treatment, and drying the treated mixture at the temperature of 95 ℃ for 30min to prepare the soybean protein plant traditional Chinese medicine multifunctional viscose fiber.
Example 2
A preparation method of a soybean protein plant traditional Chinese medicine multifunctional viscose fiber comprises the following preparation steps:
(1) at 50 ℃, mixing soybean protein and a sodium hydroxide aqueous solution with the mass fraction of 4.5 percent according to the mass ratio of 1: 10, mixing, stirring for 8min at the speed of 300r/min, adding cysteine with the mass of 0.0017 times of that of the soybean protein, and continuously stirring for 15min to prepare a soybean protein solution;
(2) at room temperature, mixing Kochiae fructus extract, Sophora alopecuroides extract and Myrtus communis extract according to a mass ratio of 4: 4: 1.5 mixing, stirring at 300r/min for 30min to obtain plant Chinese medicinal extract; adjusting the pH value of deionized water to 7.5 by using 0.45 mass percent sodium hydroxide aqueous solution at 50 ℃, and stirring for 10min at 300r/min to prepare weakly alkaline deionized water; then, mixing the plant traditional Chinese medicine extract and weakly alkaline deionized water according to the mass ratio of 1: 0.17, stirring at 700r/min for 2h, cooling at 4 deg.C/min to 23 deg.C, and filtering to obtain plant Chinese medicinal extract solution;
(3) at the temperature of 20 ℃, mixing alpha cellulose and a sodium hydroxide solution with the mass fraction of 19% according to the mass ratio of 1: 3 mixing, stirring at 600r/min for 50min, press filtering, pulverizing, sieving with 900 mesh sieve at 70 deg.C under 0.7MPa for 2.5m3Introducing carbon disulfide for 2.5 h/min, adding urea with the mass of 0.05 times of that of alpha cellulose and ethanol with the mass of 15 times of that of alpha cellulose, performing ultrasonic treatment at 35kHz for 35min, keeping the temperature and standing for 12h, and preparingObtaining viscose fiber spinning solution; at 70 ℃, mixing a soybean protein solution, a viscose spinning solution and a plant traditional Chinese medicine extract solution according to a mass ratio of 1: 4: 0.7, dripping concentrated sulfuric acid with the mass fraction of 98 percent, which is 0.004 time of the mass of the viscose fiber spinning solution, at 35 drops/min, stirring for 3 hours at 1250r/min, and defoaming for 40 minutes under the condition of 15Pa to prepare blended spinning solution;
(4) at room temperature, mixing sulfuric acid, sodium sulfate and deionized water according to a mass ratio of 100: 295: 700, stirring for 30min at the speed of 300r/min to prepare a coagulation bath liquid; at room temperature, sodium sulfite and deionized water are mixed according to the mass ratio of 5: 950, and stirring for 30min at the speed of 300r/min to prepare the desulfurization bath solution; spinning the blended spinning solution by using a screw extruder at the spinning speed of 900m/min, sequentially introducing the blended spinning solution into 50 ℃ coagulating bath solution, 75 ℃ desulfurizing bath solution and 50 ℃ silicone oil at the spinning speed of 900m/min for treatment, and drying at 100 ℃ for 40min to prepare the soybean protein plant traditional Chinese medicine multifunctional viscose fiber.
Example 3
A preparation method of a soybean protein plant traditional Chinese medicine multifunctional viscose fiber comprises the following preparation steps:
(1) at the temperature of 60 ℃, mixing soybean protein and a sodium hydroxide aqueous solution with the mass fraction of 6 percent according to the mass ratio of 1: 12, mixing, stirring at 400r/min for 10min, adding cysteine with the mass of 0.003 time of that of the soybean protein, and continuously stirring for 20min to prepare a soybean protein solution;
(2) at room temperature, mixing Kochiae fructus extract, Sophora alopecuroides extract and Myrtle extract according to the mass ratio of 5: 5: 2 mixing, stirring at 400r/min for 40min to obtain Chinese medicinal plant extract; adjusting the pH value of deionized water to 8.0 by using 0.6 mass percent sodium hydroxide aqueous solution at 55 ℃, and stirring for 15min at 400r/min to prepare weakly alkaline deionized water; then, mixing the plant traditional Chinese medicine extract and weakly alkaline deionized water according to the mass ratio of 1: 0.2 mixing, stirring at 800r/min for 2.5 hr, cooling at 4 deg.C/min to 25 deg.C, and filtering to obtain plant Chinese medicinal extract solution;
(3) mixing alpha cellulose with 20% hydrogen at 21 deg.CSodium oxide solution is prepared by mixing the following components in a mass ratio of 1: 4 mixing, stirring at 700r/min for 60min, press filtering, pulverizing, sieving with 1000 mesh sieve at 80 deg.C and 0.8MPa for 3m3Introducing carbon disulfide for 3 hours per min, then adding urea with the mass of 0.06 time of the alpha cellulose and ethanol with the mass of 20 times of the alpha cellulose, carrying out ultrasonic treatment for 40 minutes at 40kHz, and standing for 13 hours with heat preservation to prepare viscose fiber spinning stock solution; at 80 ℃, mixing a soybean protein solution, a viscose spinning solution and a plant traditional Chinese medicine extract solution according to a mass ratio of 1: 5: 0.8, dripping concentrated sulfuric acid with the mass fraction of 98 percent, which is 0.005 time of the mass of the viscose fiber spinning solution, at 40 drops/min, stirring for 4 hours at 1300r/min, defoaming for 50 minutes under the condition of 20Pa, and preparing to obtain blended spinning solution;
(4) at room temperature, mixing sulfuric acid, sodium sulfate and deionized water according to a mass ratio of 105: 300: 800, stirring at 400r/min for 40min to prepare a coagulation bath liquid; at room temperature, sodium sulfite and deionized water are mixed according to the mass ratio of 6: 1100, mixing and stirring at 400r/min for 40min to prepare desulfurization bath solution; spinning the blended spinning solution by using a screw extruder at the spinning speed of 1000m/min, sequentially introducing 1000m/min into 55 ℃ coagulation bath solution, 85 ℃ desulfurization bath solution and 55 ℃ silicone oil for treatment, and drying at 105 ℃ for 50min to prepare the soybean protein plant traditional Chinese medicine multifunctional viscose fiber.
Comparative example 1
Comparative example 1 differs from example 2 only in step (1), step (1) being modified: at 50 ℃, mixing soybean protein and a sodium hydroxide aqueous solution with the mass fraction of 4.5% according to the mass ratio of 1: 10, stirring at 300r/min for 8min, and continuing stirring for 15min to prepare the soybean protein solution. The rest of the preparation steps are the same as example 2.
Comparative example 2
Comparative example 2 differs from example 2 only in step (2), step (2) being modified: at room temperature, mixing Kochiae fructus extract and Sophora alopecuroides extract according to the mass ratio of 4: 4, mixing, stirring at 300r/min for 30min to prepare the plant traditional Chinese medicine extract; adjusting the pH value of deionized water to 7.5 by using 0.45 mass percent sodium hydroxide aqueous solution at 50 ℃, and stirring for 10min at 300r/min to prepare weakly alkaline deionized water; then, mixing the plant traditional Chinese medicine extract and weakly alkaline deionized water according to the mass ratio of 1: 0.17, stirring at 700r/min for 2 hr, cooling at 4 deg.C/min to 23 deg.C, and filtering to obtain plant Chinese medicinal extract solution. The rest of the preparation steps are the same as example 2.
Comparative example 3
Comparative example 3 differs from example 2 only in step (3), step (3) being modified: at the temperature of 20 ℃, mixing alpha cellulose and a sodium hydroxide solution with the mass fraction of 19% according to the mass ratio of 1: 3 mixing, stirring at 600r/min for 50min, press filtering, pulverizing, sieving with 900 mesh sieve at 70 deg.C under 0.7MPa for 2.5m3Introducing carbon disulfide for 2.5 h/min, adding ethanol 15 times the mass of alpha cellulose, performing ultrasonic treatment at 35kHz for 35min, and standing for 12h to obtain viscose spinning solution; at 70 ℃, mixing a soybean protein solution, a viscose spinning solution and a plant traditional Chinese medicine extract solution according to a mass ratio of 1: 4: 0.7, dripping concentrated sulfuric acid with the mass fraction of 98 percent, which is 0.004 time of the mass of the viscose fiber spinning solution, at 35 drops/min, stirring for 3 hours at 1250r/min, and defoaming for 40 minutes under the condition of 15Pa to prepare the blended spinning solution. The rest of the preparation steps are the same as example 2.
Comparative example 4
Comparative example 4 differs from example 2 only in step (3), step (3) being modified: at the temperature of 20 ℃, mixing alpha cellulose and a sodium hydroxide solution with the mass fraction of 19% according to the mass ratio of 1: 3 mixing, stirring at 600r/min for 50min, press filtering, pulverizing, sieving with 900 mesh sieve, filtering at 70 deg.C under 0.7MPa for 2.5m3Introducing carbon disulfide for 2.5 h/min, adding ethanol 15 times the mass of the alpha cellulose, stirring at 600r/min for 35min, and standing at the constant temperature for 12h to prepare viscose fiber spinning stock solution; at 70 ℃, mixing a soybean protein solution, a viscose spinning solution and a plant traditional Chinese medicine extract solution according to a mass ratio of 1: 4: 0.7, dripping concentrated sulfuric acid with the mass fraction of 98 percent, which is 0.004 time of the mass of the viscose fiber spinning solution, at 35 drops/min, stirring for 3 hours at 1250r/min, and defoaming for 40 minutes under the condition of 15Pa to prepare the blended spinning solution. The rest of the preparation steps are the same as example 2.
Examples of effects
The following table 1 shows the analysis results of the antibacterial property, the anti-mite effect, the skin care and health care property, the water washing resistance and the fiber strength of the soy protein plant traditional Chinese medicine multifunctional viscose fibers prepared in the examples 1 to 3 and the comparative examples 1 to 4 of the present invention.
TABLE 1
From table 1, it can be seen that the soybean protein plant traditional Chinese medicine multifunctional viscose fiber prepared in examples 1, 2 and 3 has good antibacterial property, anti-mite effect, skin care and health care property, water washing resistance and fiber strength; compared with the experimental data of examples 1, 2 and 3 and comparative example 1, it can be found that the soybean protein solution prepared by using cysteine and the subsequent blending spinning can form Schiff base, and the prepared soybean protein plant traditional Chinese medicine multifunctional viscose fiber has strong washing resistance, antibacterial property and skin care health care property; from the experimental data of the examples 1, 2 and 3 and the comparative example 2, it can be found that the vegetable traditional Chinese medicine extract solution prepared by using the myrtle extract is subjected to subsequent blending spinning to form Schiff base, and the prepared soybean protein vegetable traditional Chinese medicine multifunctional viscose fiber has strong antibacterial property, water washing resistance and anti-mite effect; from the experimental data of examples 1, 2, 3 and comparative example 3, it can be found that the soybean protein plant traditional Chinese medicine multifunctional viscose fiber prepared by using urea to prepare viscose fiber spinning solution forms polyamide, and has strong water washing resistance and high fiber strength; from the experimental data of examples 1, 2, 3 and comparative example 4, it can be found that the soybean protein plant traditional Chinese medicine multifunctional viscose fiber prepared by using the ultrasonic-assisted viscose process to prepare the viscose fiber spinning solution has strong water washing resistance and high fiber strength.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A preparation method of a soybean protein plant traditional Chinese medicine multifunctional viscose fiber is characterized in that the soybean protein plant traditional Chinese medicine multifunctional viscose fiber is prepared by blending and spinning a soybean protein solution, a viscose fiber spinning solution and a plant traditional Chinese medicine extract solution; the soybean protein solution is prepared by mixing soybean protein and cysteine; the viscose fiber spinning solution is prepared by carrying out ultrasonic-assisted viscose process on alpha cellulose by using urea; the plant traditional Chinese medicine extract solution is obtained by mixing a broom cypress seed extract, a sophora alopecuroides extract and a myrtle extract.
2. The method for preparing the multifunctional viscose fiber prepared from soybean protein plants and traditional Chinese medicines according to claim 1, wherein the method for preparing the multifunctional viscose fiber prepared from soybean protein plants and traditional Chinese medicines comprises the following steps: spinning the blended spinning solution by using a screw extruder at a spinning speed of 800-1000 m/min, sequentially introducing 800-1000 m/min into a coagulating bath liquid at 45-55 ℃, a desulfurizing bath liquid at 65-85 ℃ and an oil bath liquid at 45-55 ℃ for treatment, and drying at 95-105 ℃ for 30-50 min to prepare the multifunctional soybean protein plant traditional Chinese medicine viscose fiber.
3. The method for preparing the soy protein plant traditional Chinese medicine multifunctional viscose fiber as claimed in claim 2, wherein the soy protein plant traditional Chinese medicine multifunctional viscose fiber contains soy isoflavone, and the content of soy isoflavone is 10-200 ppm.
4. The method for preparing the multifunctional soybean protein plant traditional Chinese medicine viscose fiber as claimed in claim 2, wherein the coagulation bath liquid comprises 95-105 parts by weight of sulfuric acid, 290-300 parts by weight of sodium sulfate and 600-800 parts by weight of deionized water; the desulfurization bath solution comprises 4-6 parts by weight of sodium sulfite and 900-1100 parts by weight of deionized water; the oil bath liquid is silicone oil.
5. The preparation method of the multifunctional viscose fiber prepared from soybean protein, plants and traditional Chinese medicines according to claim 2, wherein the preparation method of the blended spinning solution is as follows: at the temperature of 60-80 ℃, mixing a soybean protein solution, a viscose spinning stock solution and a plant traditional Chinese medicine extract solution according to the mass ratio of 1: 3: 0.6-1: 5: 0.8, dripping concentrated sulfuric acid with the mass fraction of 98% and 0.003-0.005 times of the mass of the viscose fiber spinning solution at 30-40 drops/min, stirring for 2-4 h at 1200-1300 r/min, and defoaming for 30-50 min under the condition of 10-20 Pa to prepare the blended spinning solution.
6. The preparation method of the soy protein plant traditional Chinese medicine multifunctional viscose fiber as claimed in claim 5, wherein the preparation method of the soy protein solution is as follows: under the temperature of 40-60 ℃, mixing soybean protein with 3-6% of sodium hydroxide aqueous solution according to the mass ratio of 1: 9-12, stirring at 200-400 r/min for 5-10 min, adding cysteine which is 0.0003-0.003 times of the mass of the soybean protein in the solution, and continuously stirring for 10-20 min to prepare the soybean protein solution.
7. The method for preparing the multifunctional traditional Chinese medicine viscose fiber from soybean protein plants as claimed in claim 5, wherein the preparation method of the viscose fiber spinning dope comprises the following steps: at the temperature of 19-21 ℃, mixing alpha cellulose with a sodium hydroxide solution with the mass fraction of 18-20% according to the mass ratio of 1: 2-4, stirring at 500-700 r/min for 40-60 min, then performing filter pressing, crushing, sieving with a 800-1000 mesh sieve, and performing filtration at 60-80 ℃ and 0.6-0.8 MPa for 2-3 m3Introducing carbon disulfide for 2-3 h/min,and then adding urea with the mass of 0.04-0.06 times of that of alpha cellulose and ethanol with the mass of 10-20 times of that of the alpha cellulose, carrying out ultrasonic treatment for 30-40 min at 30-40 kHz, and standing for 11-13 h while keeping the temperature to prepare the viscose spinning solution.
8. The preparation method of the soy protein plant traditional Chinese medicine multifunctional viscose fiber as claimed in claim 5, wherein the preparation method of the plant traditional Chinese medicine extract solution is as follows: adjusting the pH value of deionized water to 7.0-8.0 by using a sodium hydroxide aqueous solution with the mass fraction of 0.3% -0.6% at 45-55 ℃, and stirring for 5-15 min at 200-400 r/min to prepare weakly alkaline deionized water; then, mixing the plant traditional Chinese medicine extract and weakly alkaline deionized water according to the mass ratio of 1: 0.15 to 0.2, stirring for 1.5 to 2.5 hours at 600 to 800r/min, cooling to 20 to 25 ℃ at 3 to 4 ℃/min, and filtering to obtain the plant traditional Chinese medicine extract solution.
9. The preparation method of the soybean protein plant traditional Chinese medicine multifunctional viscose fiber as claimed in claim 8, wherein the plant traditional Chinese medicine extract comprises 40-50 parts by weight of broom cypress seed extract, 30-50 parts by weight of sophora alopecuroides extract and 10-20 parts by weight of myrtle extract.
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