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WO2017071198A1 - Procédé de préparation de tissu chaud de type laine tricoté - Google Patents

Procédé de préparation de tissu chaud de type laine tricoté Download PDF

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Publication number
WO2017071198A1
WO2017071198A1 PCT/CN2016/083509 CN2016083509W WO2017071198A1 WO 2017071198 A1 WO2017071198 A1 WO 2017071198A1 CN 2016083509 W CN2016083509 W CN 2016083509W WO 2017071198 A1 WO2017071198 A1 WO 2017071198A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
hemp
cotton
polypropylene
preparing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/083509
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English (en)
Chinese (zh)
Inventor
严以登
周卫东
刘松
陈玉平
倪振华
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Jiangsu Ydtex Group Ltd
Original Assignee
Jiangsu Ydtex Group Ltd
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Filing date
Publication date
Application filed by Jiangsu Ydtex Group Ltd filed Critical Jiangsu Ydtex Group Ltd
Publication of WO2017071198A1 publication Critical patent/WO2017071198A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/14—Wool

Definitions

  • the invention relates to a preparation method of a fabric, and the specific design relates to a preparation method of a knitted wool-like warm fabric, belonging to the technical field of textile and functional textile.
  • the grey fabric is dyed first, and then processed by various complicated finishing processes such as brushing, combing, shearing, and shaking.
  • the fabric is roughed on the front, the fluff is fluffy and dense, and it is not easy to shed and pilling.
  • the fluff is short, the texture of the tissue is clear, and the fluffy elasticity is excellent.
  • the composition of pearl velvet is 100% polyester; it is characterized by soft handfeel, fine texture and green environmental protection. It is specially processed to achieve special functions such as moisture-proof and warmth, mainly used for nightgown, baby products, children's wear, clothing lining, shoes and hats. Toys, interior accessories, craft products, home accessories and other materials.
  • Non-falling velvet is a type of warp-knitted velvet fabric.
  • This pile fabric is similar to the velvet fabric.
  • the fabric has excellent gloss, elasticity and soft handfeel. It is a superior fabric for making high fashion, tight clothing and decorative items.
  • the raw materials used in the above fabrics and garments are cotton, wool, chemical fiber filaments, etc.
  • the weaving process is mainly for knitting, or by pulling, cutting or raising, or for woven fabrics and warm linings.
  • the product has good warmth and comfort, but generally does not have health care functions.
  • the demand for warm fabrics in different countries varies greatly depending on the climate of each country. The more cold the place, the greater the demand. In extremely cold places, people need to use heavy fur clothing to keep out the cold; in special environments, such as in space, people need to wear air-conditioned space suits, which need to be supported by extremely difficult thermal insulation fabrics. Therefore, there is an urgent need for a new solution to solve this technical problem.
  • the present invention discloses a method for preparing a knitted wool-like warm fabric, wherein the knitted wool-like warm fabric is made of hemp/cotton/polypropylene blended yarn and polyolefin elastic fiber, namely, the elastic stretch yarn. It is processed by knit weaving, dyeing, carbon grinding, softening, etc. Hemp is selected to obtain the antibacterial health and UV resistance of the product.
  • the cotton fiber has good hygroscopicity and spinnability.
  • the polypropylene is difficult to conduct heat and keep warm.
  • the mixing of the three fibers can make the product warm, moisture absorbing and antibacterial.
  • the UV function combined with the weaving of polyolefin elastic fibers, gives the product excellent elasticity and shape retention.
  • the product is soft and delicate, breathable and comfortable, and has strong warmth. It is suitable for high-grade warm outerwear or skirt. It is a superior antibacterial health care warm fabric, which meets people's requirements for warmth, function, comfort and environmental protection of warm fabrics. Market development prospects.
  • the technical solution of the present invention is as follows, a method for preparing a knitted wool-like warm fabric, characterized in that the method comprises the following steps: 1) raw material matching; 2) spinning process; 3) weaving process; ) Printing and dyeing and finishing.
  • the method for preparing a knitted wool-like warm fabric according to claim 1, wherein the raw material selection in the step 1) is as follows: the hemp original fiber is selected, and the length is 55 mm.
  • the hemp fiber with a fineness of 2500Nm has a super long fiber ratio of 9.13%, a hard strip rate of 10.5%, a hemp particle of 35 grains/g, a moisture regain of 9.02%, a polypropylene fiber of 1.5D ⁇ 38mm, and a long-staple cotton.
  • the spinning process is as follows:
  • Hemp fibrils the specific process is, clear flowers - carding - pre-adhesion
  • Polypropylene fiber the specific process is clearing--carding--pre-adhesive
  • the three fiber treatment processes are as follows, the first side draws - two - end - roving - spun yarn.
  • the spinning process is specifically as follows: the clearing is a process of opening the cotton, and the compacted cotton is opened, removed, and properly knitted to form a lap.
  • the carding process is to further comb the cotton lap to form a sliver, that is, a raw strip; the pre-striping is to combine a plurality of raw strips and draw a tampon, that is, a pre-adhesive strip;
  • the plurality of pre-strips are combined to form a roll for feeding into the combing machine;
  • the combing is to comb the strips to remove a large amount of short piles, and to synthesize a combed strip;
  • the first side is parallel, the second and the last
  • the plurality of fibers are mixed and combined to form a tampon which is used for supplying the roving process; the roving is to draw and knead the cooked strip into a finer roving; the spun yarn is The roving strip is drawn and
  • the spinning process is specifically as follows: before the spinning, the hemp virgin fiber needs to be pretreated to improve the spinnability, and the pretreatment method is to add an antistatic softening oil agent.
  • the antistatic softening agent is added at a ratio of 5% of the total weight, and The water is evenly mixed at 3:7 and sprayed on the hemp fibrils. It is placed in the workshop for 4 days. It needs to be cut several times during storage to make the moisture regain of hemp fibrils above 15%. The moisture regain of polypropylene fibers is almost zero. Need to add about 2% antistatic agent.
  • Hanma original fiber contains more granules, is rigid and brittle, has no natural curl, and has poor fiber cohesion and length uniformity. It needs to be pretreated before spinning. Hemp fiber can be treated after health treatment. Although the spinning property has been improved, it cannot be rolled into strips separately. It needs to be mixed into a roll with a long-staple cotton in a clearing process at a mass ratio of 1:1. After combing with a carding machine, it is mixed with the combed long-staple cotton.
  • the polypropylene and the polypropylene pre-strip are mixed into three mature strips, and then woven into roving and spinning process to make 25% of hemp fiber, 35% of combed cotton, 40% of combed cotton, and 40% of polypropylene fiber. Kex (28 inches) knitting yarn.
  • Hanma original fiber and a small amount of long-staple cotton are mixed in the opening process, using the process of “more loose, less, less and less”, which reduces the speed of the beater and prevents excessive fiber damage; the carding process adopts “heavy quantitative, low speed”
  • the process of “less cotton” increases the speed ratio of cylinder to thorn roller to strengthen the ability of the fiber to transfer from the thorn roller to the cylinder, reduce the loss of strength and length loss caused by excessive combing of the fiber, and ensure the fiber can be Spinning; enlarge the inlet gauge of the small leak bottom, reduce the cotton drop; and then make a certain amount of pre-adhesion after pre-combination.
  • 137A Xinjiang long-staple front spinning carding process adopts multi-comb and less hitting process to reduce the speed of hitting and reduce fiber damage; reduce the gauge and strengthen the combing to remove impurities; ensure a certain rate of cotton removal (16%), remove short Cashmere and neps.
  • the polypropylene fibers are separately formed into strips, which are pre-adhered by clearing and carding. Hanma pre-adhesive, long-staple cotton combed strips, polypropylene pre-strips are mixed in three proportions according to the design ratio.
  • the mixing process adopts the process of “medium quantitative, large gauge, reasonable tension drafting, full integration, anti-wrap and anti-blocking”.
  • the roving adopts the process of “heavy pressure, large gauge, low speed, medium quantitative, small tension”.
  • the roving moisture regain rate is 6.8%; the fine spinning drafting distance is 19 ⁇ 22mm, the workshop temperature is 30°C, and the relative humidity is 65%.
  • the skin roller is treated with iodine to prevent the skin roller from sticking, and the appropriate spacer block and the wire ring are selected. Reduce the phenomenon of spit and the occurrence of broken ends; the winding adopts the process of “low speed, quality assurance, good joints, good forming”, and waxing, reducing neps, appending hairiness, reducing breakage, ensuring yarn quality Stable.
  • the weaving process is as follows: weaving process flow: raw materials entering the factory--inspection--steaming, wetting--winding---machine-weaving-fabric inspection--into the warehouse.
  • the printing and finishing process is specifically as follows: pretreatment, dyeing and finishing.
  • the pretreatment process is specifically as follows:
  • Process flow adding multi-effect bleaching agent, sodium carbonate, softener in the bath - running 10min - heating up to 60 ° C - hydrogen peroxide - heating to 110 ° C - holding 60 min - cooling to 70 ° C - overflow Flow rinsing for 5 min - draining - hot washing temperature 90 ° C, time 15 min - washing for 10 min;
  • the dyeing process is as follows: process prescription: activated carbon 0.083%, active red 0.01%, Yuanming powder 35g / L, sodium carbonate 15g / L, leveling agent 2g / L, chelating agent SX 1g/L, bath ratio 1:15.
  • the post-dye treatment process prescription :
  • the advantages of the present invention are as follows: 1) The knitted wool-like warm fabric of the hemp/wool/polypropylene blended yarn and the polypropylene elastic fiber developed by the technical scheme are woven, dyed and finished by the knitted double-sided circular knitting machine.
  • hemp is known as the "King of Ma”
  • hemp native fiber is a natural bast fiber made by special high-tech degumming process.
  • Dimensions which have the following characteristics: 1.
  • Antibacterial health care the hemp original fiber is a hollow structure, which contains a large number of gaps and holes, and the holes cross each other. The microporous structure can adsorb a large amount of oxygen, making it difficult for anaerobic bacteria to survive.
  • hemp fiber contains a variety of metal elements, phenolic substances and their derivatives, organic acids and inorganic salts, can destroy the structure of the bacteria; 2. UV-resistant, hemp fiber cross-section is irregular triangle, Polygon or ellipse, etc., the cavity and shape are different, the molecular structure is polygonal, loose, and spiral, so hemp fiber has good dissipative effect on sound waves and light waves, no special finishing can block strong ultraviolet light. Radiation; 3. Moisture wicking, hemp fiber longitudinally distributed with many vertical lines and small holes, forming excellent capillary effect, so wicking moisture absorption; 4.
  • Anti-static, hemp fiber exposed to air generally contains water The rate is around 12%, but the hand feels not wet, so it can easily avoid the static electricity and the discharge and pilling caused by friction.
  • the hemp bast contains high pectin and lignin, and the degumming process is very important. Its scale development.
  • the General Post-Military Research Institute has successfully developed mechanical degumming soft linen equipment, flashing processing equipment, biological degumming, and high temperature cooking equipment. Liquid ammonia finishing equipment and fiber grading and carding equipment and related technologies, Youngor Group Co., Ltd. also overcome the technical problems of ring spinning, warping, sizing and weaving, and provide technical support for the industrial production of hemp fiber.
  • Polypropylene is a fiber obtained by polymerization and melt spinning of propylene as a raw material.
  • the physical properties are as follows: 1. Morphology, the longitudinal plane of polypropylene is flat and smooth, and the cross section is circular. 2. Density, the biggest advantage of polypropylene is light texture, its density is only 0.91g/cm3, which is the lightest density among common chemical fibers, so the same weight of polypropylene can obtain higher coverage than other fibers. 3. Strong tensile polypropylene has high strength, large elongation, high initial modulus, and elastic Excellent in properties, so polypropylene has good abrasion resistance.
  • polypropylene is basically equal to dry strength, so it is an ideal material for making fishing nets and cables; 4. Hygroscopicity and dyeing properties are light and warm; almost no moisture absorption, but wicking ability is strong, moisture absorption and perspiration are obvious Polypropylene has a low hygroscopicity, and the moisture regain under normal atmospheric conditions is close to zero. However, it has a wicking action that transfers water vapor through the capillary in the fabric, but does not itself absorb any absorption. The dyeability of polypropylene is poor, the chromatogram is not complete, but the method of coloring the original liquid can be used to make up for the deficiency; 5.
  • the acid-resistant and alkali-resistant polypropylene has good chemical resistance, except for concentrated nitric acid, concentrated caustic soda, polypropylene to acid. Good resistance to alkali and therefore suitable for use as filter materials and packaging materials; 6.
  • Light-resistant polypropylene has poor light resistance, poor thermal stability, easy aging, and is not resistant to ironing. However, it is possible to improve the anti-aging property by adding an anti-aging agent at the time of spinning.
  • polypropylene has good electrical insulation, but it is easy to generate static electricity during processing. Because the thermal conductivity of polypropylene is small, the thermal insulation is good; 7.
  • polypropylene elastic yarn The strength of high-strength polypropylene elastic yarn is second only to nylon, but the price is only 1/3 of nylon; the fabric is stable in size, wear-resistant and elastic, chemical stability it is good. However, it has poor thermal stability, is not resistant to the sun, and is prone to aging and brittleness. For this reason, an anti-aging agent is often added to the polypropylene.
  • Polyolefin elastic fiber is a new type of elastic fiber. Its usage is similar to that of spandex, but it has very unique properties: 1. Chemical stability, strong acid resistance, strong alkali, chlorine bleaching, ultraviolet irradiation, etc. 2. Low setting temperature, 120° -130° stereotype can obtain stable setting effect; 3.
  • Finished product size is stable: the horizontal and vertical shrinkage rate of knitted fabric can be controlled within 1-2%; 4.
  • the fabric elasticity is comfortable and stable, and the wearing experience is excellent; the polypropylene fiber has texture Light, high warmth rate, and no splashing when burning, will not cause burns to the wearer, etc., there are a wide range of application needs in the winter thermal underwear market.
  • polypropylene has a low melting point and begins to melt at around 130 degrees, while the spandex has a setting temperature of about 170-180 degrees. Therefore, there is no polypropylene fabric
  • the addition of spandex to the process has caused great limitations on the wearing properties of polypropylene fabrics, making polypropylene thermal underwear a long-standing application.
  • Polyolefin elastic fiber can achieve good setting effect at 120 degrees, combined with polypropylene, can improve the complete solution for thermal underwear.
  • Polypropylene + polyolefin elastic thermal fabric will be a new and unique product on the market, with broad market prospects, and can also bring rich profits to the company.
  • Polypropylene fabric product advantages 1. Burning without splashing, will not cause burns to the wearer; 2. The same weight, polypropylene fabrics have the highest warmth rate; 3. The same warmth rate, polypropylene fabric weight is the lowest; 4. Low shrinkage rate: The horizontal and vertical shrinkage rate is within 1-2%; 5.
  • the garment cost is low: the same weight, the polypropylene fabric area is the largest; 2)
  • the technical scheme adopts the dyeing process of hemp/cotton/polypropylene blended yarn and sturdy silk knitted fabric Technology, choose hemp/cotton/polypropylene blended yarn and Shulei silk knitted fabric finishing technology, including sanding, softness, finished product shaping and other technologies, choose reasonable pre-type, bleaching, dyeing and dyeing process to ensure At the same time, the dyeing rate reduces the strong loss;
  • the knitted wool-like warm fabric developed by the method has soft and full hand feeling, strong velvet feeling, good warmth retention, antibacterial deodorization, adsorption odor, anti-ultraviolet radiation, moisture absorption and quick drying.
  • the function is a high-grade, functional and healthy environmental protection and warm fabric. It is suitable for middle and high-grade warm outerwear or skirts. It is deeply loved by consumers and has a broad market prospect.
  • a method for preparing a knitted wool-like warm fabric comprising the steps of:
  • Hanma virgin fiber is made of hemp fiber with a length of 55mm and a fineness of about 2500Nm.
  • the ultra-long fiber ratio is 9.13%, the hard strip rate is 10.5%, the granule is 35/g, and the moisture regain is 9.02%.
  • 1.5D ⁇ 38mm; long-staple cotton is made of 137A Xinjiang long-staple cotton.
  • the above three kinds of fibers are mixed and weaved with Hanma 25/JC35/Polypropylene 40 21tex (28S) knitting yarn.
  • the elastic yarn added during weaving is 75D polypropylene elastic. Fiber; Hanma native fiber is coarse and hard, the rate of hard strip and super long fiber is high, the spinnability is poor, and the blending ratio should not be too high.
  • the hemp fiber is selected to make the product obtain certain antibacterial and anti-ultraviolet functions.
  • the polypropylene fiber has small thermal conductivity and good thermal insulation. It is suitable for use as a warm fabric.
  • the cotton fiber has good moisture absorption, comfortable and natural, and can be placed well. Make up for the defects of poor spinnability of hemp fiber.
  • Spinning process the spinning process is as follows: (1) According to the mass ratio, hemp fibrils: long-staple cotton 1:1: clear flowers--carding--pre-adhesive; (2) long-staple cotton : Qinghua--carding--pre-adhesive-------- combing; (3) polypropylene fiber: clear flower--carding--pre-striping; the above three fiber treatment processes are as follows, head The road is tied - two and - the end - roving - spun yarn.
  • Hanma original fiber and a small amount of long-staple cotton are mixed in the opening process, using the process of “more loose, less, less and less”, which reduces the speed of the beater and prevents excessive fiber damage; the carding process adopts “heavy quantitative, low speed”
  • the process of “less cotton” increases the speed ratio of cylinder to thorn roller to strengthen the ability of the fiber to transfer from the thorn roller to the cylinder, reduce the loss of strength and length loss caused by excessive combing of the fiber, and ensure the fiber can be Spinning; enlarge the inlet gauge of the small leak bottom, reduce the cotton drop; and then make a certain amount of pre-adhesion after pre-combination.
  • 137A Xinjiang long-wool front spinning carding machine adopts the process of multi-comb and less hitting, which reduces the speed of hitting and reduces fiber damage; Distance, strengthen the carding to remove impurities; ensure a certain rate of cotton removal (16%), remove the short pile and neps.
  • the polypropylene fibers are separately formed into strips, which are pre-adhered by clearing and carding. Hanma pre-adhesive, long-staple cotton combed strips, polypropylene pre-strips are mixed in three proportions according to the design ratio.
  • the mixing process adopts the process of “medium quantitative, large gauge, reasonable tension drafting, full integration, anti-wrap and anti-blocking”.
  • the roving adopts the process of “heavy pressure, large gauge, low speed, medium quantitative, small tension”.
  • the roving moisture regain rate is 6.8%; the fine spinning drafting distance is 19 ⁇ 22mm, the workshop temperature is 30°C, and the relative humidity is 65%.
  • the winding adopts "low speed, quality assurance, good joint, good shape” Process, and waxing, reduce neps, append hairiness, reduce breakage, and ensure the stability of yarn quality.
  • the flowering process the wet design of the roll design is 400g/m, the needle punching speed is 560r/min, the comprehensive hitting speed is 720r/min, the design length is 30m, and the clearing volume is 13.5kg.
  • Carding process cylinder-cover spacing 9 ⁇ 8 ⁇ 8 ⁇ 8 ⁇ 9 ⁇ ; stripping speed 70m/min; raw strip quantitative 32g/5m, pre-bending process: 6 combined roots, moisture regain 7.5%, wet weight 28g/5m.
  • Open cleaning process A076E comprehensive beater speed 780r/min, 106 beater speed 480r/min, quantitative 350g/m, lap weight: 15kg.
  • Carding process spacing between cylinder and cover: 7*6*6*6*7 ⁇ , cylinder speed: 345r/min, licking speed: 645r/min, delivery speed: 60m/min, carding : 16g/5m.
  • Pre-adhesion the number of combined roots: 5, resurgence: 7%, wet weight: 21.5g/5m.
  • Strip and roll process number of combined roots: 28; strip volume: 8 ⁇ 12mm; speed: 105m/min; moisture regain: 7%; wet weight 62g/m.
  • Combing process speed: 255 Clamp times / minute, moisture regain: 6.8%, cotton removal rate: 16%, wet weight quantitative: 17g/5m, delivery speed: 80m / min.
  • Open cleaning process A076E comprehensive beater speed 750r/min, 106 beater speed 450r/min, quantitative 300g/m, lap weight: 9.5kg.
  • Carding process spacing between cylinder and cover: 7*6*6*6*7 ⁇ , speed of cylinder: 360r/min, speed of licking roller: 690r/min, delivery speed: 60m/min, combing : 20g/5m.
  • Pre-adhesion number of combined: 8, quantitative: 14g/5m.
  • the roving dry weight is 4.8g/10m
  • the twist is 3.94 ⁇ /10cm
  • the draw ratio in the back zone is 1.28 times
  • the total draw ratio is 7.75 times
  • the spindle speed is 850r/min.
  • the yarn twist is 76 ⁇ /10cm, the steel collar PG1 4254, the wire ring udr6/0, 3.0 pressure bar spacer block, the roller center distance is 19 ⁇ 22; the front yarn of the spinning yarn is 240 rpm, and the total draft is 22.8.
  • Hanma native fiber contains more granules, is rigid and brittle, has no natural curl, and has poor fiber cohesion and length uniformity. It needs to be pretreated before spinning to improve its spinnability.
  • Pretreatment that is, processing the hemp original fiber before spinning, the specific method is to add antistatic softening oil agent, the antistatic softening oil agent addition ratio is 5% of the total weight, and the water is uniformly mixed with 3:7 and sprayed to the Han On the hemp fiber, put it in the workshop for 4 days, and need to turn it over several times during storage, so that the moisture regain of hemp fibrils is above 15%.
  • the moisture regain of polypropylene fiber is almost zero, and about 2% antistatic agent needs to be added.
  • the spinnability is improved, and it cannot be rolled into a strip separately. It needs to be mixed with a small amount of long-staple cotton in the opening process, and then combed with a carding machine and combed with a long pile.
  • the cotton is mixed into strips, pre-synthesized and pre-striped with polypropylene to form a mature strip through three mixing, and then spun into a hemp 25/JC35/polypropylene 4021tex (28S) blended yarn through a roving and spinning process.
  • Hanma original fiber and a small amount of long-staple cotton are mixed in the opening process, using the process of “more loose, less, less and less”, which reduces the speed of the beater and prevents excessive fiber damage; the carding process adopts “heavy quantitative, low speed”
  • the process of “less cotton” increases the speed ratio of cylinder to thorn roller to strengthen the ability of the fiber to transfer from the thorn roller to the cylinder, reduce the loss of strength and length loss caused by excessive combing of the fiber, and ensure the fiber can be Spinning; enlarge the inlet gauge of the small leak bottom, reduce the cotton drop; and then make a certain amount of pre-adhesion after pre-combination.
  • 137A Xinjiang long-staple front spinning carding process adopts multi-comb and less hitting process to reduce the speed of hitting and reduce fiber damage; reduce the gauge and strengthen the combing to remove impurities; ensure a certain rate of cotton removal (16%), remove short Cashmere and neps.
  • the polypropylene fibers are separately formed into strips, which are pre-adhered by clearing and carding. Hanma pre-adhesive, long-staple cotton combed strips, polypropylene pre-strips are mixed in a three-way design ratio article.
  • the mixing process adopts the process of “medium quantitative, large gauge, reasonable tension drafting, full integration, anti-wrap and anti-blocking”.
  • the roving adopts the process of “heavy pressure, large gauge, low speed, medium quantitative, small tension”.
  • the roving moisture regain rate is 6.8%; the fine spinning drafting distance is 19 ⁇ 22mm, the workshop temperature is 30°C, and the relative humidity is 65%.
  • the winding adopts "low speed, quality assurance, good joint, good shape” Process, and waxing, reduce neps, append hairiness, reduce breakage, and ensure the stability of yarn quality.
  • Fabric structure double rib (cotton cloth).
  • Weaving machine technology 34 inches, 24 needles, double-sided circular machine;
  • Yarn support hemp 25/JC35/polypropylene 40 28S+75D shrapnel;
  • Fabric requirements 1, fabric requirements to achieve a smooth surface, no horizontal bars, no vertical bars, cloth surface points within the internal control; 2, the fabric in the fabric to do three nothing. Namely: no broken wire, no running wire, no jumping wire; 3, the fabric should be flexible, soft to the touch, strong velvet.
  • the fabric should be flexible, soft to the touch, strong velvet.
  • the steaming and wetting are required to reduce the modulus of the hemp fibril and enhance the flexibility and strength of the yarn.
  • we use a small speed adjust the position of the needle mouth, the distance between the upper and lower needles, the depth of the needle, the yarn tension, the length of the elastic wire and the tension of the cloth, and solve the yarn breakage.
  • the problem of holes in the cloth surface is to solve the problem of running silk and jumping silk to ensure the quality of the cloth.
  • One is to reduce the fly ash from the yarn during the weaving process of the hemp original staple fiber, to prevent it from clogging the knitting needle and affect the weaving; /
  • the speed of water dispersion in the cotton/polypropylene blended yarn makes the modulus of the hemp primary fiber in the yarn suitable for the weaving requirements, ensuring the normal production.
  • Printing and dyeing and finishing including pre-treatment, dyeing and finishing, dyeing using medium temperature dyeing, lower speed.
  • the process mainly includes pre-treatment, dyeing and finishing processes, specifically scouring, oxygen bleaching, dyeing, water washing, dehydration, loose drying, soft setting, carbon sanding, tenter setting and pre-shrinking.
  • the dyeing is moderately temperature-sensitive and has a lower speed.
  • the process mainly includes pre-treatment, dyeing and finishing processes, specifically scouring, oxygen bleaching, dyeing, water washing, dehydration, loose drying, soft setting, carbon sanding, tenter setting and pre-shrinking.
  • the composition of the knitted fabric is cellulose fiber, and the polypropylene fiber is not resistant to high temperature
  • the one-bath dyeing method of the medium-temperature active dye is used, and the amount of the Yuanming powder is appropriately increased during the dyeing process, thereby improving the dyeing rate of the knitted fabric.
  • cellulase treatment and soft finishing it can reduce the itching of linen fabric and enhance the comfort performance; use carbon sanding finishing, on the fabric table
  • the surface forms a very short and soft fluff, which gives the fabric a certain sense of skin, drape, flesh, and enhances the velvety, softness and warmth of the fabric.
  • the styling makes the fabric dimensionally stable and has the smallest shrinkage due to the low melting point of the polypropylene.
  • the setting temperature should be strictly controlled to prevent the polypropylene from melting.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un procédé de préparation d'un tissu chaud de type laine tricoté, comprenant les étapes suivantes : 1) sélection et mélange de matières premières; 2) processus de filage; 3) processus de tissage; et 4) impression, teinture et post-finition. Le tissu chaud de type laine tricoté est formé par tricotage, teinture, dépolissage au carbone, adoucissement et d'autres processus de post-finition sur des fils mixtes de fibre de polypropylène/coton/chanvre de Chine et des fibres élastiques de polyoléfine, c'est-à-dire des fibres élastiques confortables, qui sont choisis comme matières premières. La sélection de chanvre de Chine sert à fournir, au produit, des fonctions antibactérienne, de soins de santé et de résistance aux UV, les fibres de coton ont de bonnes hygroscopicité et filabilité, et les fibres de polypropylène ont une faible conductivité thermique et une bonne rétention de chaleur; et le mélange des trois fibres permet au produit d'avoir des propriétés de rétention de chaleur, d'absorption d'humidité et de respirabilité et des fonctions antibactérienne et de résistance aux UV; en outre, par le tissage des fibres élastiques de polyoléfine, le produit présente de très bonnes élasticité et conformité.
PCT/CN2016/083509 2015-10-26 2016-05-26 Procédé de préparation de tissu chaud de type laine tricoté Ceased WO2017071198A1 (fr)

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