CN101649505B - Composite fiber of isolated peanut protein and preparation method thereof - Google Patents
Composite fiber of isolated peanut protein and preparation method thereof Download PDFInfo
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- CN101649505B CN101649505B CN2009101721389A CN200910172138A CN101649505B CN 101649505 B CN101649505 B CN 101649505B CN 2009101721389 A CN2009101721389 A CN 2009101721389A CN 200910172138 A CN200910172138 A CN 200910172138A CN 101649505 B CN101649505 B CN 101649505B
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Abstract
The invention discloses a composite fiber of isolated peanut protein and a preparation method thereof. The composite fiber of the isolated peanut protein comprises the isolated peanut protein, chitosin and viscose; and the preparation method of the composite fiber comprises the following steps: (1) separately preparing an isolated peanut protein solution, a chitosin solution and a viscose solution; (2) blending the isolated peanut protein solution, the chitosin solution and the viscose solution to obtain a blend spinning basic solution; (3) using a plate-and-frame filter press to filter the blend spinning basic solution, keeping the spinning slurry static and deforming in vacuum; pressing the blend spinning basic solution in a coagulating bath through a spinning nozzle; adopting wet spinning to prepare the blend composite fiber of isolated peanut protein/chitosin/viscose; (4) washing the blend fiber with water, dewatering, carrying out acetalation treatment; and then, washing with water, applying oil, drying, curling, and decating for forming and shaping to obtain the composite fiber. The blend composite fiber of the invention has excellent hygroscopicity and breathability, good spinnability, wide sources of raw materials and low prices, therefore, the blend composite fiber can be produced in mass and can achieve good economic benefits and social benefits.
Description
Technical field
The present invention relates to a kind of preparation method of composite fibre, specifically, is the preparation method of a kind of peanut protein isolate, chitin and viscose blend composite fiber, belongs to field of textiles.
Background technology
In recent years, along with the change of people life style and the raising of the level of consumption, great variety is taking place in textile raw material, light in order to adapt to dress, the characteristics of comfortable and nourishing healthy, textile raw material trend " light; gentle; pine; as to hang down ", comfortable attractive in appearance, nurse functions such as convenient and health care and become the target that people pursue, these factors promote, promoted the development of textile raw material: it is reported that useful milk protein makes fiber, useful soybean protein is made fiber, useful peanut protein is made fiber, but does not also have the report of peanut protein and chitin blending fiber.
China is peanut production and consumption big country, and the peanut dregs annual output is extracted peanut protein except small part and is used for medicine and the food service industry about 2,500,000 tons, and the overwhelming majority is used for animal feed, and resource utilization is low, is a kind of huge waste to resource.The peanut protein that utilization is extracted from peanut dregs is produced ground nut fiber, has not only solved wasting of resources problem, and provides a kind of good raw material for textile industry.Improved the added value of peanut, but the fiber that simple peanut protein is made, fracture strength and elongation are relatively poor, and spinnability is poor, is difficult to large-scale promotion application.
Chitin fiber is the found unique a kind of positively charged animal fiber of present occurring in nature, have undersaturated cation group in its molecule, therefore all kinds of harmful substances, the harmful bacteria to negative electrical charge has powerful suction-operated, it just can suppress the activity of harmful bacteria like this, lose activity, thereby reach antibiotic purpose.And this fiber had not only had the structure of string but also had the human body ossein organizes similar structure, with human body good compatibility is arranged, can be decomposed by the lysozyme of human body and absorb, thereby the textiles that makes this material have good medical science characteristic to be made by it has good bacteriostasis, and deodorization effect, according to test, contain 2.5% chitin in the textiles, its antibacterial action can satisfy the human antimicrobial demand fully.At present the chitin fiber of producing is also thicker, and powerful also special low (wet especially strong, main cause be porous fibre), volume weight are bigger, and these have determined the spinnability and the spinning process of chitin fiber.Ground nut fiber, chitin fiber and viscose mix mutually, efficiently solve this problem.
Summary of the invention
The object of the present invention is to provide a kind of raw material wide material sources, cost is low, and hygroscopicity, gas permeability and good spinnability are easy to process and have the blended fiber of health care.
Peanut protein isolate composite fibre of the present invention comprises peanut protein isolate, chitin and viscose.
Another object of the present invention provides a kind of preparation method of peanut protein isolate composite fibre.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
(1) prepares peanut protein isolate solution, chitin solution and viscose solution respectively;
(2) above-mentioned three kinds of solution are mixed, obtain blend spinning stoste;
(3) blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath,, the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber by wet spinning process through spinning head;
(4) blended fiber is handled through washing, dehydration, acetal, then wash, oil, dry, curl, the gas steaming finalizes the design and obtains blended fiber.
The preparation of the peanut protein isolate solution described in the step (1) is that the raw material peanut protein isolate is dissolved in the aqueous solution, and according to the quality of the peanut protein powder that adds, obtaining concentration is the peanut protein isolate solution of 4-9%;
Described chitin formulations prepared from solutions is that the raw material chitin is dissolved in the aqueous solution that contains 5%-7%NaOH and 10-13% urea, maintains the temperature between-20 ℃ to-10 ℃, fully stirs 2-5h, and obtaining concentration is the chitin solution of 1-4%;
Described viscose formulations prepared from solutions is the raw material viscose to be dissolved in obtain the viscose solution that concentration is 30-80% in the copper ammon solution;
Described copper ammon solution is formulated by basic copper carbonate, ammoniacal liquor and water, and wherein the basic copper carbonate mass percent concentration is 5-7%, and the ammoniacal liquor mass percent concentration is 40-55%;
Three kinds of solution described in the step (2) were according to 1: 1: 1 mixed;
The described coagulating bath of step (3) is that mass percent is the mixed liquor of the calcium chloride of 3-5% and aqueous hydrochloric acid solution that mass percent is 5-10% and the mass percent absolute ethyl alcohol that is 50-80%, keep coagulation bath temperature at the 50-60 degree, the tensile fiber multiple is 10-15 times.
The described acetal of step (4) is to adopt formaldehyde, and concentration is 10-15%, and temperature is the 22-32 degree, and the time is 30-50 minute;
Described oil be temperature at the 35-45 degree, finish is an oil for polypropylene fibre, concentration is 4-7%, the rate that oils 10-15%;
Described oven dry, curl, gas steams is that the oven dry of 120-160 degree, 70-110 degree curl, 130-190 degree gas steams.
Its performance is for doing fracture strength (CN/dtex) 3-4.5; Wet breaking strength (CN/dtex) 2-4; Dried elongation at break 16-24%; Wet elongation at break 20%-38%; Regain 8-17%.
Peanut protein chitin fiber of the present invention has good hygroscopicity, gas permeability, soft, gloss is soft, good spinnability, the clothes that utilizes the peanut protein chitin fiber to make has the activation aged cells, the antibiotic enzyme of activating human body, lysozyme enhances metabolism, cleaning skin and suppress vegetative effect.Its raw material sources are wide, and cost is low, can produce in enormous quantities, have favorable economic benefit and social benefit.
The specific embodiment
Below in conjunction with concrete example technical scheme of the present invention is further specified:
Embodiment 1
Peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 4% peanut protein isolate solution; Chitin is dissolved in the combination solution of NaOH and urea (containing 5% NaOH, 10% urea), maintains the temperature at-20 ℃, fully stir 2h, obtain concentration and be 1% chitin solution; The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 5% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 40% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 30% viscose solution; With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 3% calcium chloride and mass percent are that 5% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 50% absolute ethyl alcohol, keep coagulation bath temperature at 50 degree, the tensile fiber multiple is 10 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 10%, temperature is 22 ℃, time is 30 minutes) then in washing, oil and (go up oil temperature at 35 ℃, finish is an oil for polypropylene fibre, concentration is 4%, and rate 10% oils), 120 ℃ of oven dry, 70 ℃ curl, 130 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 3; Wet breaking strength (CN/dtex) 2; Dried elongation at break 16%; Wet elongation at break 20%; Regain 8%.
Embodiment 2
Peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 7% peanut protein isolate solution; The raw material chitin is dissolved in the combination solution of NaOH and urea (containing 6% NaOH, 12% urea), maintains the temperature at-15 ℃, fully stir 3h, obtain concentration and be 2% chitin solution; The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is between 6% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is between 50% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 35% viscose solution; With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 4% calcium chloride and mass percent are that 8% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 60% absolute ethyl alcohol, keep coagulation bath temperature at 55 degree, the tensile fiber multiple is 12 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 12%, temperature is 27 ℃, time is 40 minutes) then in washing, oil and (go up oil temperature at 40 ℃, finish is an oil for polypropylene fibre, concentration is 6%, and rate 12% oils), 140 ℃ of oven dry, 100 ℃ curl, 130 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 4; Wet breaking strength (CN/dtex) 3; Dried elongation at break 20%; Wet elongation at break 30%; Regain 12%.
Embodiment 3
Peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 9% peanut protein isolate solution; Chitin is dissolved in the combination solution of NaOH and urea (containing 7% NaOH, 13% urea), maintains the temperature at-10 ℃, fully stir 5h, obtain concentration and be 4% chitin solution; The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 7% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 55% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 80% viscose solution; With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 5% calcium chloride and mass percent are that 10% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 80% absolute ethyl alcohol, keep coagulation bath temperature at 60 ℃, the tensile fiber multiple is 15 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 15%, temperature is 32 ℃, time is 50 minutes) then in washing, oil and (go up oil temperature at 45 ℃, finish is an oil for polypropylene fibre, concentration is 7%, and rate 15% oils), 160 ℃ of oven dry, 110 ℃ curl, 190 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 4.5; Wet breaking strength (CN/dtex) 4; Dried elongation at break 24%; Wet elongation at break 38%; Regain 17%.
Embodiment 4
The raw material peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 4% peanut protein isolate solution;
The raw material chitin is dissolved in the combination solution of NaOH and urea (containing 5% NaOH, 10% urea), maintains the temperature at-20 ℃, fully stir 2h, obtain concentration and be 1% chitin solution;
The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 5% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 40% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 30% viscose solution;
With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 3% calcium chloride and mass percent are that 5% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 50% absolute ethyl alcohol, keep coagulation bath temperature at 50 ℃, the tensile fiber multiple is 10 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.
Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 10%, temperature is 22 ℃, time is 30 minutes) then in washing, oil and (go up oil temperature at 35 ℃, finish is an oil for polypropylene fibre, concentration is 4%, and rate 10% oils), 120 ℃ of oven dry, 70 ℃ curl, 130 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 3.5; Wet breaking strength (CN/dtex) 3; Dried elongation at break 20%; Wet elongation at break 30%; Regain 15%.
Embodiment 5
The raw material peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 9% peanut protein isolate solution;
The raw material chitin is dissolved in the combination solution of NaOH and urea (containing 7% NaOH, 13% urea), maintains the temperature at-10 ℃, fully stir 5h, obtain concentration and be 4% chitin solution;
The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 7% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 55% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 80% viscose solution;
With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 5% calcium chloride and mass percent are that 10% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 80% absolute ethyl alcohol, keep coagulation bath temperature at 60 ℃, the tensile fiber multiple is 15 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.
Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 15%, temperature is 32 ℃, time is 50 minutes) then in washing, oil and (go up oil temperature at 45 ℃, finish is an oil for polypropylene fibre, concentration is 7%, and rate 15% oils), 160 ℃ of oven dry, 110 ℃ curl, 190 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 3.9; Wet breaking strength (CN/dtex) 3.5; Dried elongation at break 22%; Wet elongation at break 25%; Regain 10%.
Embodiment 6
The raw material peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 6% peanut protein isolate solution;
The raw material chitin is dissolved in the combination solution of NaOH and urea (containing 6% NaOH, 11% urea), maintains the temperature at-15 ℃, fully stir 3h, obtain concentration and be 2% chitin solution;
The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 6% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 45% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 50% viscose solution;
With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 4% calcium chloride and mass percent are that 7% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 65% absolute ethyl alcohol, keep coagulation bath temperature at 55 ℃, the tensile fiber multiple is 13 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.
Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 13%, temperature is 27 ℃, time is 40 minutes) then in washing, oil and (go up oil temperature at 40 ℃, finish is an oil for polypropylene fibre, concentration is 5%, and rate 13% oils), 140 ℃ of oven dry, 90 ℃ curl, 160 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 3.9; Wet breaking strength (CN/dtex) 4; Dried elongation at break 24%; Wet elongation at break 38%; Regain 17%.
Embodiment 7
The raw material peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 7% peanut protein isolate solution;
The raw material chitin is dissolved in the combination solution of NaOH and urea (containing 7% NaOH, 12% urea), maintains the temperature at-13 ℃, fully stir 4h, obtain concentration and be 2% chitin solution;
The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 7% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 50% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 60% viscose solution;
With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 5% calcium chloride and mass percent are that 8% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 70% absolute ethyl alcohol, keep coagulation bath temperature at 58 ℃, the tensile fiber multiple is 14 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.
Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 14%, temperature is 30 ℃, time is 45 minutes) then in washing, oil and (go up oil temperature at 42 ℃, finish is an oil for polypropylene fibre, concentration is 6%, and rate 14% oils), 150 ℃ of oven dry, 100 ℃ curl, 170 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 3.3; Wet breaking strength (CN/dtex) 2.5; Dried elongation at break 16; Wet elongation at break 20%; Regain 8%.
Embodiment 8
The raw material peanut protein isolate is dissolved in to obtain concentration in the aqueous solution be 5% peanut protein isolate solution;
The raw material chitin is dissolved in the combination solution of NaOH and urea (containing 5% NaOH, 10% urea), maintains the temperature at-18 ℃, fully stir 2h, obtain concentration and be 1% chitin solution;
The raw material viscose is dissolved in (the basic copper carbonate mass percent concentration is 5% in the copper ammon solution, and the ammoniacal liquor mass percent concentration is 43% in the copper ammon solution) in the copper ammon solution, and to obtain concentration be 40% viscose solution;
With the mixed of above-mentioned three kinds of solution, obtain blend spinning stoste according to 1: 1: 1.Blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath through spinning head, coagulating bath is that mass percent is that 3% calcium chloride and mass percent are that 6% aqueous hydrochloric acid solution and mass percent are the mixed liquors of 60% absolute ethyl alcohol, keep coagulation bath temperature at 53 ℃, the tensile fiber multiple is 12 times.By wet spinning process the mixed solution and sprayed silk is prepared peanut protein isolate/chitin/viscose blend composite fiber.
Blended fiber is handled (acetal employing formaldehyde through washing, dehydration, acetal, concentration is 12%, temperature is 24 ℃, time is 35 minutes) then in washing, oil and (go up oil temperature at 37 ℃, finish is an oil for polypropylene fibre, concentration is 4%, and rate 11% oils), 130 ℃ of oven dry, 80 ℃ curl, 140 ℃ of therapeutic methods to keep the adverse qi flowing downward are steamed typing and obtained blended fiber.
Detect:
Its performance is for doing fracture strength (CN/dtex) 3.1; Wet breaking strength (CN/dtex) 2; Dried elongation at break 17%; Wet elongation at break 35%; Regain 11%.
Claims (1)
1. a peanut protein isolate composite fibre is characterized in that, comprises peanut protein isolate, chitin and viscose, and its preparation method is as follows:
(1) prepares peanut protein isolate solution, chitin solution and viscose solution respectively;
(2) above-mentioned three kinds of solution are mixed, obtain blend spinning stoste;
(3) blend spinning stoste is filtered through plate and frame filter press again, behind the vacuum discontinuous degassing, be pressed in the coagulating bath, prepare peanut protein isolate/chitin/viscose blended fiber by wet spinning process through spinning head;
(4) blended fiber is handled through washing, dehydration, acetal, and then wash, oil, dry, curl, the gas steaming finalizes the design and obtains composite fibre;
The preparation of the peanut protein isolate solution described in the step (1) is the raw material peanut protein isolate to be dissolved in obtain the peanut protein isolate solution that concentration is 4-9% in the aqueous solution;
Described chitin formulations prepared from solutions is that the raw material chitin is dissolved in the aqueous solution that contains 5%-7%NaOH and 10-13% urea, maintains the temperature between-20 ℃ to-10 ℃, fully stirs 2-5h, and obtaining concentration is the chitin solution of 1-4%;
Described viscose formulations prepared from solutions is the raw material viscose to be dissolved in obtain the viscose solution that concentration is 30-80% in the copper ammon solution; Described copper ammon solution is formulated by basic copper carbonate, ammoniacal liquor and water, and wherein the basic copper carbonate mass percent concentration is 5-7%, and the ammoniacal liquor mass percent concentration is 40-55%;
Three kinds of solution described in the step (2) were according to 1: 1: 1 mixed;
Acetal described in the step (4) is to adopt formaldehyde, and concentration is 10-15%, and temperature is the 22-32 degree, and the time is 30-50 minute;
Described oil be temperature at the 35-45 degree, finish is an oil for polypropylene fibre, concentration is 4-7%, the rate that oils 10-15%; Described oven dry, curl, gas steams is that the oven dry of 120-160 degree, 70-110 degree curl, 130-190 degree gas steams;
The composite fibre performance is for doing fracture strength 3-4.5CN/dtex; Wet breaking strength 2-4CN/dtex; Dried elongation at break 16-24%; Wet elongation at break 20%-38%; Regain 8-17%.
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| CN2009101721389A CN101649505B (en) | 2009-09-10 | 2009-09-10 | Composite fiber of isolated peanut protein and preparation method thereof |
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| CN101649505B true CN101649505B (en) | 2011-09-14 |
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| CN102787409A (en) * | 2012-09-05 | 2012-11-21 | 罗莱家纺股份有限公司 | Compact siro yarn and preparation method thereof |
| CN102953180B (en) * | 2012-11-14 | 2015-04-01 | 际华三五零九纺织有限公司 | Method for producing jade silkworm fiber pure 60s compact spinning yarn |
| CN105970306A (en) * | 2016-07-15 | 2016-09-28 | 圣欧芳纶（淮安）有限公司 | Production process for optimizing fiber performance through heat treatment |
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