CN102912474B - Composite fiber and preparation method thereof - Google Patents
Composite fiber and preparation method thereof Download PDFInfo
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- CN102912474B CN102912474B CN201210381806.0A CN201210381806A CN102912474B CN 102912474 B CN102912474 B CN 102912474B CN 201210381806 A CN201210381806 A CN 201210381806A CN 102912474 B CN102912474 B CN 102912474B
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Abstract
The invention relates to a composite fiber of kapok fiber powder and cellulose and a preparation method of the composite fiber, in particular to a preparation method of a kapok fiber powder-modified cellulose composite fiber. The preparation method comprises the following steps: cleaning the kapok fiber powder; preparing the cleaned kapok fiber powder, a cellulose polymer, additives and a solvent into a spinning solution; and molding to obtain the composite fiber of the kapok fiber powder and the cellulose through wet spinning in a coagulation bath. By adding different contents of kapok fiber powder into the spinning solution and changing technical conditions, the composite fiber of the kapok fiber powder and the cellulose, which is low in production cost and has good performance, is prepared. By the preparation method of the composite fiber of the kapok fiber powder and the cellulose, the spinning difficulty of kapok fiber is overcome, the kapok fiber is ensured to have the characteristics of hollowness, heat preservation, naturalness, bacterium resistance and the like, and the application field of the composite fiber of the kapok fiber powder and the cellulose can be effectively expanded by using the kapok fiber.
Description
Technical field
The present invention relates to a kind of functional fiber material, relate in particular to a kind of bombax cotton powder and cellulosic composite fibre, and the preparation method of this composite fibre.
Background technology
Cellulose fibre has the history of more than 100 year as artificial fibre the earliest, existing cellulose fibre output has reached more than 260 ten thousand tons, since entering 21st century; along with world population increases; energy crisis, resource exhaustion, the cellulose fibre that can be produced by the Nature receives much attention.Yet because traditional cotton, numb native cellulose fibre are having certain limitation aspect development scale, as the problem of cotton " striving ground with grain ", people have more and more concentrated on sight line in the development and utilization of new type natural, regenerated celulose fibre.
Bombax cotton is a kind of fruit fiber of xylophyta silk cotton tree, is attached to kapok capsule inner walls, by tapetum cell growth, growth, is formed.Its fiber and fruit adhewsive action power are little, thereby generally do not need special preliminary working equipment, only need large bamboo or wicker basket to sieve, and kapok seed just sinks to the bottom voluntarily, can obtain bombax cotton.Bombax cotton is a kind of native cellulose fibre, belongs to unicellular fibre together with cotton fiber.Bombax cotton has the feature of a series of uniquenesses: its fineness only has 1/2 of cotton fiber, hollow rate but reaches more than 86%, is 2-3 times of general cotton fiber, that is to say, the clothes that kapok clothes are made than general fiber gentlier, thinner, warming effect is high all the better.Bombax cotton length is shorter, is 8-34mm, fiber stage casing diameter range 20-45 μ m, the close 0.9-1.2dtex of line.Aspect intensity and elongation, the brute force of bombax cotton is lower, and elongation ability is little.The average strong 1.4-1.7cN of filament, fiber specific strength is 0.8-1.3 cN/dtex, elongation at break is 1.5%-3.0%.
Bombax cotton have a series of good characteristics as: bright and clean, antibacterial, mothproof, mildew-resistant, softly, not easy entanglement, waterproof, not heat conduction etc.It is mainly grown in the tropical provinces and regions such as domestic Yunnan, Hainan Island, Guangdong, Guangxi, south Fujian, and the tropic countries such as external Indonesia, Ni Niya, Thailand, Africa.The kapok fibre of China mainly comes from the kapok kind of Gossampinus, uses few.The silk cotton tree of one strain manhood can be produced the bombax cotton of 5～8 kg, comprise at present approximately 19. 5 ten thousand tons of the global annual productions of the bombax cotton of China, but bombax cotton has the following disadvantages: effective utilization and the utilization rate of (1) bombax cotton are very low, at field of textiles, rarely have the product of applying on market, consumer does not know that a kind of so similar cotton, performance are better than again cotton native cellulose fibre product in addition substantially yet; (2) bombax cotton is shorter because of length, and intensity is lower, and surface is more smooth, and relative torsion rigidity is large, and cohesive force is poor, and the difficulty of therefore spinning is large, and yarn quality is lower, and its dye-uptake is not high; Therefore, these shortcomings, the spinning method that makes kapok be difficult to or hair cotton with processing spins separately; (3) for a long time,, due to the problem such as bombax cotton output and fiber machinability, dye-uptake be not high, kapok is only used to do low-grade quilted product, has affected its exploitation in textile garment product.
Summary of the invention
The object of the invention is to overcome all deficiencies that above-mentioned prior art exists, and bombax cotton powder and the cellulosic composite fibre that a kind of production cost is low, have premium properties is provided; Solve the bombax cotton difficult problem of spinning, and keep the advantages such as bombax cotton hollow warm-keeping, natural antibacterial, effectively utilize bombax cotton to expand it and take Application Areas.
Another object of the present invention is also to provide a kind of production technology simple, is convenient to the bombax cotton powder and the cellulosic composite fibre preparation method that implement.
The object of the present invention is achieved like this: a kind of composite fibre, it is characterized in that, and comprise following component and weight content thereof: A, bombax cotton powder solution, weight content ratio is 20%～35%; B, cellulose rayon spinning stoste consist of: chemical cellulose 8.8%, and containing alkali 4.5%.
As scheme more specifically, described bombax cotton powder solution comprises bombax cotton powder and sodium hydrate aqueous solution, and between them, presses the part by weight of 1:2～4, and bombax cotton powder is immersed in sodium hydrate aqueous solution.
Wherein, in above-mentioned sodium hydrate aqueous solution, the mass content of NaOH is 30%～50%.
And the weight content ratio of described bombax cotton powder in composite fibre is 10～40%, when powder content is lower than 10% time, the enhancing of bombax cotton powder in composite fibre and propose high performance effect and be not reflected so; When powder content is higher than 40% time, the intensity of the composite fibre obtaining reduces on the contrary, and the fragility of composite fibre increases greatly, makes like this composite fibre normally to use.
Described bombax cotton powder average grain diameter is preferably in 50～100 μ m, particle diameter is during lower than 50 μ m, bombax cotton powder processing cost increases, and destruction that can be certain to the structure generation of bombax cotton, when particle diameter is greater than 100 μ m, bombax cotton powder can not mix uniformly with cellulose spinning fluid, so the average grain diameter of fiber powder is the most suitable at 50～100 μ m.
In described cellulose rayon spinning stoste, the cellulosic degree of polymerization is 450～1000; Cellulose adopts a kind of in gossypin, lignose, bamboo cellulose, flax fibre element and straw fiber element or several mixing.
This (bombax cotton powder and cellulose) composite fibre is comprised of fiber powder and cellulose, and the weight content of bombax cotton powder is 10～40%.Like this owing to having added bombax cotton powder in cellulose, fiber powder is dispersed in composite fibre, hydrophilicity and hydrophobicity, the permeability of fiber have been improved, and due to the natural large hollow structure of bombax cotton, the thermal property of composite fibre also can be improved, and has certain anti-microbial property.And can adjust according to the actual needs the content of bombax cotton powder in composite fibre, aborning in order to improve the performance of composite fibre, the average grain diameter of bombax cotton powder is controlled at 50～100 μ m, and the cellulosic degree of polymerization is 450～1000; And cellulose can adopt one or more in gossypin, lignose, bamboo cellulose, flax fibre element and straw fiber element, to facilitate industrialization to produce.
Another object of the present invention is achieved in that a kind of method of preparing above-mentioned composite fibre, it is characterized in that, comprises the steps:
1. content ratio by weight, prefabricated wood cotton fibre powder liquid solution and cellulose rayon spinning stoste, standby respectively;
2. above-mentioned prefabricated bombax cotton powder solution and cellulose rayon spinning stoste are mixed;
3. by above-mentioned mixed liquor spinning moulding in coagulating bath;
5. last, through refining, dry, make composite fibre.
As scheme more specifically, described prefabricated wood cotton fibre powder liquid solution, is first bombax cotton powder to be cleaned, press again the part by weight of 1:2～4, bombax cotton powder is immersed in 30 ~ 50% sodium hydrate aqueous solution, and is placed in the concussion of ultrasonic oscillation device and mixes, its bath temperature
Be 25 ± 2 ℃, the time is 4～6h, makes bombax cotton powder solution.
As scheme more specifically, described prefabricated cellulose rayon spinning stoste, system adopts a kind of cellulose that the degree of polymerization is 450～1000, or several celluloses mix, through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, make cellulose rayon spinning stoste, and control this rayon spinning stoste consist of chemical cellulose 8.8%, containing alkali 4.5%.
Described mixed liquor spinning moulding in coagulating bath means bombax cotton powder solution and cellulose spin dope mixed, and in static mixer through being no less than 10
5inferior even mixing, through pre-filtering, degassed input measuring pump, enters sulfur acid, zinc sulfate, sodium sulphate, spinning moulding in 48 ℃ of coagulating baths of temperature; And refining is dried and to be meant, spinning moulding in coagulating bath, then through desulfurization, wash, oil, bleach, dry, make bombax cotton powder and cellulosic composite fibre
The preparation method of above-mentioned composite fibre, has process simple, convenient for production, the bombax cotton powder of suitable bombax cotton powder and cellulose composite fiber large-scale production and the preparation method of cellulose composite fiber.Exactly bombax cotton powder is added in cellulose spinning solution, adopt viscose glue wet spinning through coagulating bath spinning moulding, and obtain bombax cotton powder and cellulose composite fiber through postprocessing working procedures such as refining oven dry.The existence of bombax cotton powder has a certain impact to the macroscopic property of spinning solution and the dynamics each component diffusion mass transfer speed in becoming silk process, the micron-scale phase separation behavior in fibroblast process is had to impact, finally the microstructure form of composite fibre is had a certain impact.But the macro property impact on composite fibre is larger, especially to the mechanical property of composite fibre, hydrophilicity and hydrophobicity, permeability and thermal property thereof and anti-microbial property.Feature of the present invention is exactly, by bombax cotton powder application to cellulose composite spinning field, by according to the hydrophilicity and hydrophobicity of prepared fiber, permeability and thermal property thereof and anti-microbial property requirement, select the bombax cotton powder of different content to prepare composite fibre.
In the preparation of this (bombax cotton powder and cellulose) composite fibre, be the bombax cotton powder solution prepared with bombax cotton powder and the mixed solution of cellulose spin dope; First, with absolute ethyl alcohol, clean bombax cotton powder surface; Then prepare bombax cotton powder solution; Subsequently bombax cotton powder solution is added in cellulose spinning fluid, makes composite fibre blend spinning liquid, carry blend spinning liquid to mixing in static mixer, filtration, deaeration; Finally adopt viscose glue wet spinning through coagulating bath spinning moulding, and obtain bombax cotton powder and cellulose composite fiber through postprocessing working procedures such as refining oven dry.
In the present invention, fiber powder is carried out to surface clean, this is a lot of operations of process in preparation process due to bombax cotton and bombax cotton powder, keep away unavoidably and will contact with a lot of other materials, other pollutants such as the oil stain of some organic-inorganics of fiber powder surface existence and dust, if fiber powder does not carry out surface clean, these pollutants on fiber powder surface will affect dispersed in spinning solution of fiber powder on the one hand so, can make on the other hand the composition of spinning solution change, the final mutual mass transfer velocity that affects each component in composite fibre forming process, so finally affect the microstructure and properties of composite fibre.Therefore the method that adopts absolute ethyl alcohol to clean in conjunction with ultrasonic oscillation is proposed in the present invention.
Bombax cotton is with all natural or synthetic fiber are the same; have a natural cortex construction, the existence of cortex is played a protective effect to fiber, is also the existence of cortex just; make fiber powder be uniformly dispersed and have difficulties in cellulose spinning fluid, fiber powder is easily reunited.The present invention is shaken a period of time by fiber powder and solvent under ul-trasonic irradiation, and a large amount of like this solvents has carried out certain quarter to fiber powder surface
Decorations, the active force between cellulosic polymer and fiber powder strengthens greatly like this, so being dispersed in spinning solution that bombax cotton powder can be uniform and stable is difficult for occurring to reunite and precipitation.
Cellulose spin dope adopts the degree of polymerization, and to be 450～1000 gossypin, lignose, bamboo cellulose, flax fibre element and straw fiber element make through operations such as the alkali stain of pulp, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, and can be according to the needs of actual production, adjust chemical cellulose content and alkalinity in cellulose stoste, this is technology well known in the art.
In the present invention, the bombax cotton powder cleaning with absolute ethyl alcohol is joined and in 30 ~ 50% sodium hydrate aqueous solutions, be placed in the concussion of ultrasonic oscillation device and mix, its bath temperature is 25 ± 2 ℃, and the time is 4～6h, forms bombax cotton powder solution.Bombax cotton powder solution is uniformly mixed and is delivered to static mixer after joining in cellulose spinning solution, in static mixer, is no less than 10 with cellulose spin dope
5inferior mixing is to mix.
And in order to adapt to various production environments, to adapt to the needs of production, during spinning moulding, the coagulating agent of coagulating bath used adopts sulfuric acid, zinc sulfate, sodium sulphate or sulfuric acid, aluminum sulfate, sodium sulphate or coagulating agent adopt sulfuric acid, sodium sulphate and denaturant polyalkylene glycol alkyl amine as main in V315(Main Ingredients and Appearance, be used for as denaturant, using in modified fiber, for its use amount of improved high-strength degree fiber, be about 1% of relative cellulose amount, and for its use amount of production of high wet modulus fibrid be about relative cellulose amount 2～4%), this is technology well known in the art.
Producing bombax cotton powder and cellulose composite fiber like this, can adopt and bombax cotton powder and cellulose blending spinning solution are delivered to entrance measuring pump enter spinning moulding in coagulating bath, again through desulfurization, wash, oil, bleach, the post processing such as oven dry, obtain finished product bombax cotton powder and cellulose composite fiber.And in capable of regulating bombax cotton powder solution, bombax cotton powder content is measured and is recently adjusted bombax cotton powder content in composite fibre by entrance.
Beneficial effect of the present invention is as follows:
(1), in the present invention, each raw material is current people conventional product aborning, equal commercially available obtaining, and various device used in producing is also equipment used in current production;
(2) method of the present invention is prepared bombax cotton powder and cellulose composite fiber, its each operation can adopt common fibre manufacturing technique, produce simple, be convenient to implement, and by adding the bombax cotton powder of different content and change process conditions in spinning solution, prepare production cost is low, have premium properties bombax cotton powder and cellulose composite fiber.
(3) bombax cotton powder of the present invention and cellulose composite fiber preparation method, will solve the bombax cotton difficult problem of spinning, and keep the advantages such as bombax cotton hollow warm-keeping, natural antibacterial, effectively utilizes bombax cotton to expand it and take Application Areas.
The specific embodiment
Following examples are described in more detail the present invention, but described embodiment is not construed as limiting the invention.
embodiment 1
Adopting the bombax cotton powder average grain diameter cleaned is 68.5 μ m, with the ratio of 1:2.5, be immersed in 35% sodium hydrate aqueous solution,
Bombax cotton powder is fully mixed, be placed in ultrasonic oscillation device and disperse 4.5h, temperature is 26 ℃.Obtain bombax cotton powder solution.
Separately the cellulose bamboo pulp of the degree of polymerization 550 is made to cellulose rayon spinning stoste through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, that controls this rayon spinning stoste consists of chemical cellulose 8.8%, containing alkali 4.5%.
Then by need of production, get and make bombax cotton powder solution and cellulose spin dope, mixed being incorporated in static mixer through being no less than 10
5inferior mixing is to mix, through pre-filtering, degassed input measuring pump, enter sulfur acid 133g/L, zinc sulfate 11.5g/L, sodium sulphate 325g/L, spinning moulding in 48 ℃ of coagulating baths of temperature, again through desulfurization, wash, oil, bleach, dry, make the composite fibre that in fiber, bombax cotton powder content is 25%.
embodiment 2
Adopting the bombax cotton powder average grain diameter cleaned is 72.8 μ m, is immersed in 30% sodium hydrate aqueous solution with the ratio of 1:3, and bombax cotton powder is fully mixed, and is placed in ultrasonic oscillation device and disperses 5h, and temperature is 25 ℃.Obtain bombax cotton powder solution.
The cellulose bamboo pulp that the another cellulose hemp dissolving pulp that is 580 by the degree of polymerization and the degree of polymerization are 750 makes cellulose rayon spinning stoste through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, that controls this rayon spinning stoste consists of chemical cellulose 8.8%, containing alkali 4.5%.
Then by need of production, get and make bombax cotton powder solution and cellulose spin dope, mixed being incorporated in static mixer through being no less than 10
5inferior mixing is to mix, through pre-filtering, degassed input measuring pump, enter sulfur acid 133g/L, zinc sulfate 11.5g/L, sodium sulphate 325g/L, spinning moulding in temperature 50 C coagulating bath, again through desulfurization, wash, oil, bleach, dry, make the composite fibre that in fiber, bombax cotton powder content is 35%.
embodiment 3
Adopting the bombax cotton powder average grain diameter cleaned is 72.8 μ m, is immersed in 30% sodium hydrate aqueous solution with the ratio of 1:3, and bombax cotton powder is fully mixed, and is placed in ultrasonic oscillation device and disperses 5h, and temperature is 25 ℃.Obtain bombax cotton powder solution.
The cellulose straw pulp that the another cellulose bamboo pulp that is 780 by the degree of polymerization and the degree of polymerization are 450 makes cellulose rayon spinning stoste through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, that controls this rayon spinning stoste consists of chemical cellulose 8.8%, containing alkali 4.5%.
Then by need of production, get and make bombax cotton powder solution and cellulose spin dope, mixed being incorporated in static mixer through being no less than 10
5inferior mixing is to mix, through pre-filtering, degassed input measuring pump, enter sulfur acid 133g/L, zinc sulfate 11.5g/L, sodium sulphate 325g/L, spinning moulding in 52 ℃ of coagulating baths of temperature, again through desulfurization, wash, oil, bleach, dry, make the composite fibre that in fiber, bombax cotton powder content is 40%.
embodiment 4
Adopting the bombax cotton powder average grain diameter cleaned is 91.5 μ m, is immersed in 30% sodium hydrate aqueous solution with the ratio of 1:3, and bombax cotton powder is fully mixed, and is placed in ultrasonic oscillation device and disperses 5h, and temperature is 25 ℃.Obtain bombax cotton powder solution.
The another cellulose cotton pulp that is 580 by the degree of polymerization makes cellulose rayon spinning stoste through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, that controls this rayon spinning stoste consists of chemical cellulose 8.8%, containing alkali 4.5%.
Then by need of production, get and make bombax cotton powder solution and cellulose spin dope, mixed being incorporated in static mixer through being no less than 10
5inferior mixing is to mix, through pre-filtering, degassed input measuring pump, enter sulfur acid 133g/L, zinc sulfate 11.5g/L, sodium sulphate 325g/L, spinning moulding in temperature 50 C coagulating bath, again through desulfurization, wash, oil, bleach, dry, make the composite fibre that in fiber, bombax cotton powder content is 35%.
embodiment 5
Adopting the bombax cotton powder average grain diameter cleaned is 78.2 μ m, is immersed in 30% sodium hydrate aqueous solution with the ratio of 1:3, and bombax cotton powder is fully mixed, and is placed in ultrasonic oscillation device and disperses 5h, and temperature is 25 ℃.Obtain bombax cotton powder solution.
The another cellulose cotton pulp that is 580 by the degree of polymerization makes cellulose rayon spinning stoste through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, that controls this rayon spinning stoste consists of a cellulose 8.8%, containing alkali 4.5%.
Then by need of production, get and make bombax cotton powder solution and cellulose spin dope, mixed being incorporated in static mixer through being no less than 10
5inferior mixing is to mix, through pre-filtering, degassed input measuring pump, enter sulfur acid 133g/L, zinc sulfate 11.5g/L, sodium sulphate 325g/L, spinning moulding in temperature 50 C coagulating bath, again through desulfurization, wash, oil, bleach, dry, make the composite fibre that in fiber, bombax cotton powder content is 20%.
embodiment 6
Adopting the bombax cotton powder average grain diameter cleaned is 61.5 μ m, is immersed in 30% sodium hydrate aqueous solution with the ratio of 1:3, and bombax cotton powder is fully mixed, and is placed in ultrasonic oscillation device and disperses 5h, and temperature is 25 ℃.Obtain bombax cotton powder solution.
The another cellulose hemp dissolving pulp that is 580 by the degree of polymerization makes cellulose rayon spinning stoste through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, that controls this rayon spinning stoste consists of a cellulose 8.8%, containing alkali 4.5%.
Then by need of production, get and make bombax cotton powder solution and cellulose spin dope, mixed being incorporated in static mixer through being no less than 10
5inferior mixing is to mix, through pre-filtering, degassed input measuring pump, enter sulfur acid 132g/L, zinc sulfate 11.5g/L, sodium sulphate 325g/L, spinning moulding in 48 ℃ of coagulating baths of temperature, again through desulfurization, wash, oil, bleach, dry, make the composite fibre that in fiber, bombax cotton powder content is 15%.
Claims (7)
1. a composite fibre, is characterized in that, comprises following component and weight content thereof:
A, bombax cotton powder solution, described bombax cotton powder solution comprises bombax cotton powder and sodium hydrate aqueous solution, and between them, presses the part by weight of 1:2～4, and bombax cotton powder is immersed in sodium hydrate aqueous solution; The weight content ratio of described bombax cotton powder in composite fibre is 10～40%, and described bombax cotton powder average grain diameter is 50～100 μ m;
B, cellulose rayon spinning stoste consist of: chemical cellulose 8.8%, containing alkali 4.5%;
Also comprise following preparation process:
1. content ratio by weight, prefabricated wood cotton fibre powder liquid solution and cellulose rayon spinning stoste, standby respectively;
2. above-mentioned prefabricated bombax cotton powder solution and cellulose rayon spinning stoste are mixed;
3. by above-mentioned mixed liquor spinning moulding in coagulating bath;
4. last, through refining, dry, make composite fibre.
2. composite fibre according to claim 1, is characterized in that, in described sodium hydrate aqueous solution, the mass content of NaOH is 30%～50%.
3. composite fibre according to claim 1, is characterized in that, in described cellulose rayon spinning stoste, the cellulosic degree of polymerization is 450～1000; Cellulose adopts a kind of in gossypin, lignose, bamboo cellulose, flax fibre element and straw fiber element or several mixing.
4. a method of preparing composite fibre described in the claims 1, is characterized in that, comprises the steps:
1. content ratio by weight, prefabricated wood cotton fibre powder liquid solution and cellulose rayon spinning stoste, standby respectively;
2. above-mentioned prefabricated bombax cotton powder solution and cellulose rayon spinning stoste are mixed;
3. by above-mentioned mixed liquor spinning moulding in coagulating bath;
4. last, through refining, dry, make composite fibre.
5. the preparation method of composite fibre according to claim 4, it is characterized in that, described prefabricated wood cotton fibre powder liquid solution, system is first cleaned bombax cotton powder, then presses the part by weight of 1:2～4, bombax cotton powder is immersed in 30 ~ 50% sodium hydrate aqueous solution, and be placed in ultrasonic oscillation device concussion and mix, its bath temperature is 25 ± 2 ℃, and the time is 4～6h, makes bombax cotton powder solution.
6. the preparation method of composite fibre according to claim 4, it is characterized in that, described prefabricated cellulose rayon spinning stoste, system adopts a kind of cellulose that the degree of polymerization is 450～1000, or several celluloses mix, through conventional fibre element viscose glue preparation sections such as alkali stain, squeezing, pulverizing, experienced, yellow, dissolving, mixing, filtration, maturation and deaerations, make cellulose rayon spinning stoste, and control this rayon spinning stoste consist of chemical cellulose 8.8%, containing alkali 4.5%.
7. the preparation method of composite fibre according to claim 4, is characterized in that, described mixed liquor spinning moulding in coagulating bath means bombax cotton powder solution and cellulose spin dope are mixed, and in static mixer through being no less than 10
5inferior even mixing, through pre-filtering, degassed input measuring pump, enters sulfur acid, zinc sulfate, sodium sulphate, spinning moulding in 48 ℃ of coagulating baths of temperature; And refining is dried and to be meant, spinning moulding in coagulating bath, then through desulfurization, wash, oil, bleach, dry, make bombax cotton powder and cellulosic composite fibre.
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| GB2474694B (en) * | 2009-10-23 | 2011-11-02 | Innovia Films Ltd | Biodegradable composites |
| CN103866421B (en) * | 2014-02-25 | 2016-03-16 | 西安工程大学 | A kind of preparation method of mosquito-proof regenerated celulose fibre |
| CN107268116A (en) * | 2017-08-10 | 2017-10-20 | 钟文宇 | The preparation method of composite fibre |
| CN108301085A (en) * | 2018-01-15 | 2018-07-20 | 广东鸿泰时尚服饰股份有限公司 | A kind of composite winding and preparation method thereof |
| CN109619722A (en) * | 2019-01-14 | 2019-04-16 | 广西梧州市百裕实业有限公司 | A kind of mosquito proof school uniform and preparation method thereof |
| CN112680845B (en) * | 2020-12-05 | 2022-02-01 | 安徽富颍纺织科技股份有限公司 | Waterproof and antibacterial blended regenerated cotton yarn |
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