CN113832582A - Composite yarn and preparation and coloring method thereof - Google Patents
Composite yarn and preparation and coloring method thereof Download PDFInfo
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- CN113832582A CN113832582A CN202110987695.7A CN202110987695A CN113832582A CN 113832582 A CN113832582 A CN 113832582A CN 202110987695 A CN202110987695 A CN 202110987695A CN 113832582 A CN113832582 A CN 113832582A
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- 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
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- 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
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- 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
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/449—Yarns or threads with antibacterial properties
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- 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
- D06P1/46—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 using compositions containing natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
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- 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
- D06P1/60—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 using compositions containing polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
- D06P1/6133—Addition products of hydroxyl groups-containing compounds with oxiranes from araliphatic or aliphatic alcohols
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- 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
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
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- 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
- D06P1/667—Organo-phosphorus compounds
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- 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
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- 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
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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- 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
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
- D06P1/67375—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341 with sulfur-containing anions
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- 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
- D06P1/67383—Inorganic compounds containing silicon
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/20—Protein-derived artificial fibres
- D10B2211/22—Fibroin
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/022—Moisture-responsive characteristics hydrophylic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses a composite yarn, a preparation method and a coloring method thereof, wherein the composite yarn consists of a core wire and an outer covering material, the core wire consists of T400 composite elastic filaments, the outer covering material comprises terylene, acrylic staple fiber, chinlon, silk, spandex and wool, and the weight of the outer covering material is 3-5 times of that of the core wire; a preparation method for manufacturing the composite yarn and a coloring method for the composite yarn; the composite yarn aims to realize the comprehensive performance of the core-spun yarn, such as strong hygroscopicity, good drapability, good elasticity, good heat retention, easy coloring, durability and no change of other performances, and ensures that the fabric produced by the composite yarn has the characteristics of softness, comfort, bulkiness and bright color, and has the advantages of pilling resistance, static resistance, illumination resistance, difficult decoloration, bacteria resistance and moth resistance.
Description
Technical Field
The invention relates to the field of special yarn preparation, in particular to a composite yarn and a preparation and coloring method thereof.
Background
With the continuous improvement of the quality of life, the functional requirements of people for the wearing of textiles and clothes are changed essentially, the durability index of the wearing textiles is not taken as the first-choice index of consumption, and the past economical and practical types are converted into the comfort and functional aspects. The times of people participating in outdoor activities are increased, the time is prolonged, and sports and leisure clothes gradually enter the lives of people and are more and more popular with consumers. The comfort is an important factor of leisure and sports clothes, and people not only require that the fabric of the clothes has good comfort, but also require that the clothes can not be pasted with skin to generate a cold feeling under the condition that a human body sweats. The existing textile fabric is poor in moisture absorption and air permeability, so that the comfort degree is influenced in the wearing process, and the practicability of the fabric is reduced. The core-spun yarn is a novel core-spun yarn formed by combining two or more fibers, combines the advantages of the outer-coated fiber and the yarn core fiber, makes good use of the advantages and avoids the disadvantages, and has the excellent characteristics of the outer-coated fiber and the core yarn.
At present, most of core-spun yarns in the market adopt common spandex, the chemical resistance stability of the core-spun yarns is not high, the core-spun yarns are easy to age for a long time and have poor elasticity stability, and the core-spun yarns are easy to wrinkle after being worn. Although the core-spun yarn adopting the polyester spandex double-filament is adopted, the dimensional stability of the product is improved, but the product is poor in skin comfort, static and airtight and deodorant. In addition, the existing core-spun yarn has poor heat retention, is not easy to color, has insufficient persistence after coloring, is easy to discolor, and even causes the reduction of other performances of the core-spun yarn in order to increase the persistence of coloring.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a composite yarn, a preparation method and a coloring method thereof, aiming at realizing the comprehensive performance of strong hygroscopicity, good drapability, good elasticity, good heat retention, easy coloring and no performance change during dyeing of a core-spun yarn, and ensuring that a fabric produced by adopting the composite yarn has the characteristics of softness, comfort, bulkiness and bright color, and has the advantages of pilling resistance, static resistance, light resistance, difficult decoloring, bacteria resistance and moth resistance, and the specific technical scheme is as follows:
in order to achieve the purpose, the technical scheme of the invention is to provide the composite yarn, the composite yarn is composed of a core wire and an outer covering material, the core wire is composed of T400 composite elastic filaments, the outer covering material comprises terylene, acrylic staple fiber, chinlon, silk, spandex and wool, and the weight of the outer covering material is 3-5 times of that of the core wire.
The T400 composite elastic filament has the advantages of easy dyeing, no excessive elasticity, stable fabric size, difficult aging in the using process and the like, can be directly woven on an air-jet, water-jet and arrow shaft weaving machine, is low in cost, and improves the quality uniformity of products; the terylene has excellent setting performance, and the terylene yarn or the fabric has flat and straight, fluffy or pleated shape and the like after being set, can be used for washing for many times, and has the characteristics of durability, firmness, durability, good elasticity, difficult deformation, corrosion resistance, insulation, stiffness, easy washing, quick drying and the like; the acrylic staple fiber is a fiber which has compact structure, uniform internal structure and bright dyeing and is mainly used for clothes; the nylon is mainly used for synthetic fibers, has the most outstanding advantages that the wear resistance is higher than that of all other fibers, is 10 times higher than that of cotton and 20 times higher than that of wool, and the wear resistance can be greatly improved by slightly adding some polyamide fibers into the blended fabric; when the stretch is extended to 3-6%, the elastic recovery rate can reach 100%; can withstand ten thousand times of bending without breaking; the silk is the lightest, the softest and the thinnest natural fiber in nature, can be easily recovered after external force is removed, the inner tube is not caked, is not stuffy and not shrunk, is uniform and soft, can be permanently used without turning over, and has the special air permeability and moisture permeability, and is cool and warm, and is warm and not dry. The mulberry silk is mainly composed of animal protein, is rich in eighteen amino acids necessary for human bodies, can promote skin cell activity and prevent angiosclerosis, can prevent skin aging after long-term use, has a special itching relieving effect on certain skin diseases, and has a certain health care effect on arthritis, scapulohumeral periarthritis and asthma. The vegetarian food has the reputations of "the second skin of the human body" and "the fiber queen". The spandex has high elasticity, can stretch by 6-7 times, but can recover to the initial state rapidly along with disappearance of tension, and the spandex elasticity is excellent. And intensity is 2 ~ 3 times higher than latex silk, and linear density is also thinner to more resistant chemical degradation, the acid and alkali resistance of spandex, sweat resistance, sea water resistance, dry cleaning resistance, wearability all are better. The wool has the advantages of good elasticity, strong hygroscopicity, good heat retention and the like. The fiber prepared by blending the six fibers according to a certain proportion has the advantages of good dimensional stability, pilling resistance, static resistance, easy coloring, durability, bacteria resistance and moth resistance, and the final finished product has excellent comprehensive performance of the five fibers, increases the multifunctionality of the product and meets the increasing demands of consumers.
As an optimization of the composite yarn, the raw material proportion of the T400 composite elastic filament and the outer covering material is as follows according to the weight percentage: 15-30% of T400 composite elastic filament, 25-42% of terylene, 14-17% of acrylic staple fiber, 8-13% of chinlon, 8-12% of silk, 6-9% of spandex and 3-7% of wool. The fiber blended and manufactured according to the proportion has the advantages of good dimensional stability, pilling resistance, static resistance, easiness in coloring, durability, bacteria resistance and moth-proofing property, the final finished product has excellent comprehensive performance of the five fibers, the product versatility is improved, in addition, the raw material cost is lower while the functions are met according to the proportion, and the cost is saved.
As an optimization of the composite yarn, the raw materials of the T400 composite elastic filament have the following main specifications: DTY 50D/24F, 75D/24F, 75D/36F, 100D/36F, 150D/48F, 300D/144F, 450D/216F, 150D/72F, 300D/96F.
In order to achieve the above object, the present invention further provides a method for preparing the above composite yarn, comprising the following steps:
step 1, subjecting the terylene to first blowing-carding and first drawing to prepare first drawn slivers, and subjecting 50% of the first drawn slivers to first spun yarn on a spinning machine after a first roving process to prepare terylene spun yarn;
step 2, mixing the acrylic staple fibers, the chinlon, the silk, the spandex and the wool, performing second blowing-carding and second drawing to prepare second drawn slivers, performing third drawing with the remaining 50% of the first drawn slivers to obtain third drawn slivers, performing a second roving process on the third drawn slivers to obtain a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended roving, and then performing second spinning on a spinning machine to prepare a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn;
step 3, adopting the T400 composite elastic filament yarn, wherein the polyester spun yarn is wrapped fiber, and obtaining the polyester spun yarn/T400 composite elastic filament yarn single-filament core-spun yarn through a third spun yarn process on a ring spinning frame by adopting a core-spun spinning technology;
step 4, adopting the terylene spun yarn/T400 composite elastic filament monofilament core-spun yarn as a core yarn, adopting the terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn as an outer-wrapping fiber, and adopting a core-spun spinning technology to prepare the composite yarn;
step 5, a spooling process: winding the manufactured composite yarn into a bobbin on a bobbin winder;
step 6, doubling and double twisting process: carrying out doubling and twisting treatment on the composite yarns, combining the two composite yarns produced in the steps into a doubling cylinder on doubling equipment, setting the doubling speed to be 250-450 m/min, producing the doubling cylinder prepared by doubling on a two-for-one twister, wherein the twisting direction of the two-for-one twister is different from that of a spinning frame and is S-twisted or Z-twisted, the speed during the two-for-one twisting is 3500-4500 rpm, and the ply twist of the two-for-one twisting is 1000-1200.
As an optimization of the preparation method of the composite yarn, the doubling and double twisting process further comprises the following steps: before doubling, the composite yarn as a single yarn must be placed in a warehouse for 10-20 days, and then placed in a steaming room for 18-38 hours again for doubling. Because the single yarn has extremely high twist and has high requirements on the whole yarn before plying, the single yarn must be placed in a warehouse for standing for 10-20 days, preferably 2 weeks, and then placed in a steaming room for 18-38 hours, preferably 24 hours and doubled before doubling. The speed of double parallel is preferably low, so that the problem that when two single yarn joints are broken during plying, no small plait is caused by uneven tension or uneven straight straightening or groove drum yarn splitting is caused is solved. The ply twist of the two-for-one twisting reaches 1000-1200 twisting, preferably 1030 twisting, and the finished product is friction-resistant and pilling-resistant. The high twist is very important for the maintenance work and the maintenance of the two-for-one twister, and the yarn is controlled to be within a certain low twist unevenness to meet the requirement of single inlet wire of the heavy twist core-spun yarn sweater.
In the cotton blending process, the raw materials in the blended fiber are uniformly mixed according to a ratio, and then are packed and compressed into cotton bales which are closely arranged and vertically placed (namely, the longest side of each cotton bale is vertical, and a cotton layer in each cotton bale is kept in a horizontal state), so that the cotton bales cannot be mixed horizontally and vertically and are loosely arranged. The Chinese flowering quince is required to be packed according to the specified specification and embedded in other cotton bales for use, and can not be randomly filled in a scattered state for use, otherwise, grabbing and mixing are not uniform.
As an optimization of the preparation method of the composite yarn, in the first blowing-carding unit and/or the second blowing-carding unit, water spraying and smoldering treatment are carried out on raw materials, the distance of the beater blade extending out of the rib is set to be 2.5-3 mm, and the rotating speed of the beater is increased to 950-1200 r/min on the basis of the conventional rotating speed; in the first drawing and/or the second drawing, a forward drafting method is adopted, the number of combined tracks in each time is set as head-combination, two-combination and three-combination, and the drafting multiple of the back zone of the drawing frame is set to be 1.7-1.9 times of head-combination, 1.25-1.35 times of two-combination and 1.05-1.15 times of three-combination;
as an optimization of the preparation method of the composite yarn, the technological parameters of the cotton carding process are as follows: the sliver ration is 20g/5m, the draft multiple is 98.8, the cylinder rotating speed is 315r/min, the licker-in rotating speed is 718r/min, the doffer rotating speed is 30r/min, the cover plate speed is 102mm/min, the five-point spacing of the cylinder and the cover plate is 0.20, 0.18, 0.16 and 0.18mm, the licker-in spacing of 0.21mm and the cylinder and the doffer spacing of 0.16mm, the position of a dust removing knife is 3mm higher than the plane of a machine frame, the angle is 90 degrees, and the distance from the licker-in is 0.41 mm.
As an optimization of the preparation method of the composite yarn, the process parameters of the drawing process are as follows: the dry basis weight of the head is 15.9g/5m, the sum is 4, the drafting multiple of the rear zone is 1.76, the total drafting multiple is 7.95, the sliver-out speed is 238m/min, and the roller center distance is 47 multiplied by 53 mm; the dry basis weight of the second combination is 17.1g/5m, the sum of the dry basis weights is 6, the back zone draft multiple is 1.28, the total draft multiple is 8.00, the sliver discharging speed is 218m/min, the roller center distance is 47 multiplied by 53mm, the dry basis weight of the third combination is 17.1g/5m, the sum of the dry basis weights is 6, the back zone draft multiple is 1.08, the total draft multiple is 8.10, the sliver discharging speed is 208m/min, and the roller center distance is 47 multiplied by 53 mm.
As an optimization of the preparation method of the composite yarn, the technological parameters of the roving process are as follows: the dry basis weight was 5.44g/10m, the total draft was 6.18, the draft in the back zone was 1.286, the spindle speed was 706r/min, and the twist factor was 85.
As an optimization of the preparation method of the composite yarn, the process parameters of the spinning process are as follows: the number is 21.8g/1000m, the total draft multiple is 46, the draft multiple of the rear zone is 1.4, the ingot speed is 13000r/min, the twist is 800TPM, the roller center distance is 43 multiplied by 56mm, and the gauge block specification is 5 mm.
The invention also provides a method for coloring the composite yarn, which comprises the following steps:
step 1, pretreating the composite yarn;
step 2, soaking the refined composite yarn in the dye for dyeing;
and 3, drying the dyed composite yarn to obtain the dyed composite yarn.
As an optimization of the method of coloring the above composite yarn, step 1 comprises: preparing a pretreatment liquid, wherein the pretreatment liquid comprises the following components in parts by weight: 5-6 parts of industrial soap, 3-4 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of soda ash, 1-2 parts of hydrogen peroxide, 1-2 parts of HAc, 1-2 parts of sodium silicate and 0.5-1 part of sodium hydrosulfite, adding the composite yarn and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 30-120 min, cooling to 50-90 ℃ after the pretreatment is finished, discharging liquid, and cleaning with hot water.
As an optimization of the method of coloring the above composite yarn, step 2 comprises: and (2) cooling the cleaned composite yarn to 30 ℃, sequentially adding a dye, a dispersing agent, a leveling agent, a buffering agent, a chelating agent and a color fixing agent, keeping the temperature at 50-100 ℃ for 10-30min, gradually heating the composite yarn to 130-180 ℃ and keeping the temperature for 30-60min, then cooling the composite yarn to 30-60 ℃ and keeping the temperature for 10-30min, and gradually heating the composite yarn to 160-230 ℃ and keeping the temperature for 50-100 min.
As an optimization of the coloring method of the composite yarn, the dye is mainly prepared by mixing dye liquid and auxiliary coloring agent in a weight ratio of 18:1, and the auxiliary coloring agent is selected from: 50-60 parts of chlorotriazine-beta-cyclodextrin and 20-30 parts of hexamethylphosphoric triamide.
The invention has the advantages and beneficial effects that:
firstly, the composite yarn provided by the invention adopts the T400 composite elastic filament as the core wire, the outer covering material comprises terylene, acrylic staple fiber, chinlon, silk, spandex and wool, the weight of the outer covering material is 3-5 times of that of the core wire, the final finished product has the comprehensive properties of six materials, and the comprehensive properties of strong hygroscopicity, good drapability, good elasticity and good heat retention property, so that the fabric produced by adopting the core-spun yarn provided by the invention has the characteristics of softness, comfort, bulkiness and bright color, and has the advantages of pilling resistance, static resistance, light resistance, difficulty in decoloring, bacteria resistance and moth resistance, the multifunctional property of the product is increased, and the attraction of the product to consumers is greatly enhanced.
Secondly, the production process of the composite yarn uses the T400 composite elastic filament yarn and the polyester spun yarn to obtain the polyester spun yarn/T400 composite elastic filament monofilament covering yarn as a core yarn for standby, uses polyester/acrylic staple fiber/polyamide/silk/spandex/wool blended yarn which is prepared by the acrylic staple fiber, the polyamide, the silk, the spandex and the wool through an improved process as an outer covering fiber, and adopts a covering spinning technology to prepare the composite yarn; the optimized process ensures the performance of the finished product, does not damage the excellent performance of any fiber in the preparation process, ensures that the composite yarn has higher quality, and lays a good foundation for the subsequent finished product made of the composite yarn; in addition, the composite yarn prepared by the production process has high dyeing rate.
Thirdly, the method for coloring the composite yarn of the invention firstly performs pretreatment and then performs dyeing, thereby improving the dyeing efficiency and the dye uptake, and the original performance of the composite yarn cannot be influenced by dyeing, and the composite yarn is bright in color, difficult to fade, washable, durable and sun-proof after the dyeing.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
the utility model provides a composite yarn, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 3 times of heart yearn.
Example 2:
the utility model provides a composite yarn, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 4 times of heart yearn.
Example 3:
the utility model provides a composite yarn, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 5 times of heart yearn.
Example 4:
the utility model provides a composite yarn, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 3 times of heart yearn, each raw materials ratio of T400 complex elasticity long filament, outsourcing material is according to the proportion of weight percentage: 25% of T400 composite elastic filament, 30% of terylene, 17% of acrylic staple fiber, 10% of chinlon, 8% of silk, 6% of spandex and 4% of wool.
Example 4:
the utility model provides a composite yarn, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 4 times of heart yearn, each raw materials ratio of T400 complex elasticity long filament, outsourcing material is according to the proportion of weight percentage: 20% of T400 composite elastic filament, 28% of terylene, 14% of acrylic staple fiber, 13% of chinlon, 10% of silk, 8% of spandex and 7% of wool.
Example 5:
the utility model provides a composite yarn, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 5 times of heart yearn, each raw materials ratio of T400 complex elasticity long filament, outsourcing material is according to the proportion of weight percentage: 16.7% of T400 composite elastic filament, 32% of terylene, 15% of acrylic staple fiber, 8% of chinlon, 12% of silk, 9% of spandex and 7.3% of wool.
Example 6:
further refinement to example 3 is as follows: the main specification of the T400 composite elastic filament raw material is DTY 50D/24F.
Example 7:
further refinement to example 4 is as follows: the main specification of the T400 composite elastic filament raw material is DTY 300D/144F.
Example 8:
further refinement to example 5 is as follows: the main specification of the T400 composite elastic filament raw material is DTY 300D/96F.
Example 9:
the preparation method of the composite yarn according to the embodiment 4 includes the following steps:
step 1, subjecting the terylene to first blowing-carding and first drawing to prepare first drawn slivers, and subjecting 50% of the first drawn slivers to first spun yarn on a spinning machine after a first roving process to prepare terylene spun yarn;
step 2, mixing the acrylic staple fibers, the chinlon, the silk, the spandex and the wool, performing second blowing-carding and second drawing to prepare second drawn slivers, performing third drawing with the remaining 50% of the first drawn slivers to obtain third drawn slivers, performing a second roving process on the third drawn slivers to obtain a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended roving, and then performing second spinning on a spinning machine to prepare a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn;
step 3, adopting the T400 composite elastic filament yarn, wherein the polyester spun yarn is wrapped fiber, and obtaining the polyester spun yarn/T400 composite elastic filament yarn single-filament core-spun yarn through a third spun yarn process on a ring spinning frame by adopting a core-spun spinning technology;
step 4, adopting the terylene spun yarn/T400 composite elastic filament monofilament core-spun yarn as a core yarn, adopting the terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn as an outer-wrapping fiber, and adopting a core-spun spinning technology to prepare the composite yarn;
step 5, a spooling process: winding the manufactured composite yarn into a bobbin on a bobbin winder;
step 6, doubling and double twisting process: and (2) carrying out cabling treatment on the composite yarn, combining the two composite yarns produced in the steps into a doubling cylinder on cabling equipment, setting the doubling speed to be 250m/min, producing the doubling cylinder prepared by cabling on a two-for-one twister, wherein the twisting direction of the two-for-one twister is different from that of a spinning frame and is S-twisted, the speed of the two-for-one twister during twisting is 3500rpm, and the ply twist of the two-for-one twister is 1000.
Example 10:
the preparation method of the composite yarn using the embodiment 5 includes the following process steps:
step 1, subjecting the terylene to first blowing-carding and first drawing to prepare first drawn slivers, and subjecting 50% of the first drawn slivers to first spun yarn on a spinning machine after a first roving process to prepare terylene spun yarn;
step 2, mixing the acrylic staple fibers, the chinlon, the silk, the spandex and the wool, performing second blowing-carding and second drawing to prepare second drawn slivers, performing third drawing with the remaining 50% of the first drawn slivers to obtain third drawn slivers, performing a second roving process on the third drawn slivers to obtain a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended roving, and then performing second spinning on a spinning machine to prepare a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn;
step 3, adopting the T400 composite elastic filament yarn, wherein the polyester spun yarn is wrapped fiber, and obtaining the polyester spun yarn/T400 composite elastic filament yarn single-filament core-spun yarn through a third spun yarn process on a ring spinning frame by adopting a core-spun spinning technology;
step 4, adopting the terylene spun yarn/T400 composite elastic filament monofilament core-spun yarn as a core yarn, adopting the terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn as an outer-wrapping fiber, and adopting a core-spun spinning technology to prepare the composite yarn;
step 5, a spooling process: winding the manufactured composite yarn into a bobbin on a bobbin winder;
step 6, doubling and double twisting process: and (2) carrying out cabling treatment on the composite yarn, combining the two composite yarns produced in the steps into a cabling cylinder on cabling equipment, setting the cabling speed to be 300m/min, producing the cabling cylinder prepared by cabling on a two-for-one twister, wherein the twisting direction of the two-for-one twister is different from that of a spinning frame and is Z-twisted, the speed of the two-for-one twister is 4000rpm, and the ply twist of the two-for-one twister is 1100.
Example 11:
the preparation method of the composite yarn using the embodiment 6 includes the following process steps:
step 1, subjecting the terylene to first blowing-carding and first drawing to prepare first drawn slivers, and subjecting 50% of the first drawn slivers to first spun yarn on a spinning machine after a first roving process to prepare terylene spun yarn;
step 2, mixing the acrylic staple fibers, the chinlon, the silk, the spandex and the wool, performing second blowing-carding and second drawing to prepare second drawn slivers, performing third drawing with the remaining 50% of the first drawn slivers to obtain third drawn slivers, performing a second roving process on the third drawn slivers to obtain a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended roving, and then performing second spinning on a spinning machine to prepare a terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn;
step 3, adopting the T400 composite elastic filament yarn, wherein the polyester spun yarn is wrapped fiber, and obtaining the polyester spun yarn/T400 composite elastic filament yarn single-filament core-spun yarn through a third spun yarn process on a ring spinning frame by adopting a core-spun spinning technology;
step 4, adopting the terylene spun yarn/T400 composite elastic filament monofilament core-spun yarn as a core yarn, adopting the terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn as an outer-wrapping fiber, and adopting a core-spun spinning technology to prepare the composite yarn;
step 5, a spooling process: winding the manufactured composite yarn into a bobbin on a bobbin winder;
step 6, doubling and double twisting process: and (2) carrying out cabling treatment on the composite yarn, combining the two composite yarns produced in the steps into a cabling cylinder on cabling equipment, setting the cabling speed to be 450m/min, producing the cabling cylinder prepared by cabling on a two-for-one twister, wherein the twisting direction of the two-for-one twister is different from that of a spinning frame and is Z-twisted, the speed of the two-for-one twister is 4500rpm, and the ply twist of the two-for-one twister is 1200.
Example 12:
the control points of the respective steps in example 9 are further detailed as follows: the doubling and double twisting process further comprises the following steps: before doubling, the composite yarn as a single yarn must be placed in a warehouse for 10 days and then placed in a steam room for 28 hours again for doubling.
In the cotton mixing process, all the raw materials in the blended fiber are uniformly mixed according to the proportion, and then are packed and compressed into cotton bales which are closely arranged and vertically placed.
In the first blowing-carding unit and the second blowing-carding unit, the raw materials are subjected to water spraying and smoldering treatment, the distance of the beater blade extending out of the rib is set to be 2.5mm, and the rotating speed of the beater is increased to 1200r/min on the basis of the conventional rotating speed; in the first drawing and the second drawing, a forward drafting method is adopted, the number of combined tracks is set as head-combined, two-combined and three-combined, and the drafting multiples of the back zone of the drawing frame are set as 1.7 times of head-combined, 1.35 times of two-combined and 1.05 times of three-combined.
Example 13:
the control points of the respective steps in example 10 are further detailed as follows: the doubling and double twisting process further comprises the following steps: before doubling, the composite yarn as a single yarn must be placed in a warehouse for 15 days, and then placed in a steaming room for 18 hours again for doubling.
In the cotton mixing process, all the raw materials in the blended fiber are uniformly mixed according to the proportion, and then are packed and compressed into cotton bales which are closely arranged and vertically placed.
In the first blowing-carding unit and the second blowing-carding unit, raw materials are subjected to water spraying and smouldering treatment, the distance of the beater blade extending out of the rib is set to be 3mm, and the rotating speed of the beater is increased to 1000r/min on the basis of the conventional rotating speed; in the first drawing and the second drawing, a forward drafting method is adopted, the number of combined tracks is set as head-combined, two-combined and three-combined, and the drafting multiple of the back zone of the drawing frame is set as 1.8 times of head-combined, 1.25 times of two-combined and 1.15 times of three-combined.
Example 14:
the control points of the respective steps in example 11 are further detailed as follows: the doubling and double twisting process further comprises the following steps: before doubling, the composite yarn as a single yarn must be stored in a warehouse for 20 days and then placed into a steam room 38 hours before doubling.
In the cotton mixing process, all the raw materials in the blended fiber are uniformly mixed according to the proportion, and then are packed and compressed into cotton bales which are closely arranged and vertically placed.
In the first blowing-carding unit and the second blowing-carding unit, the raw materials are subjected to water spraying and smoldering treatment, the distance of the beater blade extending out of the rib is set to be 2.8mm, and the rotating speed of the beater is increased to 950r/min on the basis of the conventional rotating speed; in the first drawing and the second drawing, a forward drafting method is adopted, the number of combined tracks is set as head-combined, two-combined and three-combined, and the drafting multiples of the back zone of the drawing frame are set as 1.9 times of head-combined, 1.3 times of two-combined and 1.1 times of three-combined.
Example 15:
a method of coloring a composite yarn using any of the above embodiments 1-3, comprising the process steps of:
step 1, preparing a pretreatment liquid, wherein the pretreatment liquid comprises the following components in parts by weight: 5 parts of industrial soap, 4 parts of fatty alcohol-polyoxyethylene ether, 2 parts of soda ash, 1 part of hydrogen peroxide, 1 parts of HAc, 2 parts of sodium silicate and 1 part of sodium hydrosulfite, adding the composite yarn and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 50min, cooling to 50 ℃ after the pretreatment is finished, discharging liquid, and cleaning the composite yarn by using hot water;
step 2, cooling the cleaned composite yarn to 30 ℃, sequentially adding a dye, a dispersing agent, a leveling agent, a buffering agent, a chelating agent and a color fixing agent, keeping the temperature for 30min at 80 ℃, gradually heating the composite yarn to 150 ℃ and keeping the temperature for 40min, then cooling the composite yarn to 60 ℃ and keeping the temperature for 20min, and gradually heating the composite yarn to 200 ℃ and keeping the temperature for 80 min; the dye is mainly prepared by mixing dye liquid and an auxiliary coloring agent in a weight ratio of 18:1, wherein the auxiliary coloring agent is selected from: 50 parts of monochlorotriazine-beta-cyclodextrin, 30 parts of hexamethylphosphoric triamide and 30 parts of m-beta-hydroxyethyl sulfone sulfate ester aniline;
and 3, drying the dyed composite yarn to obtain the dyed composite yarn.
Example 16:
a method of coloring a composite yarn using any of the above embodiments 1-3, comprising the process steps of:
step 1, preparing a pretreatment liquid, wherein the pretreatment liquid comprises the following components in parts by weight: 5 parts of industrial soap, 3 parts of fatty alcohol-polyoxyethylene ether, 1 part of soda ash, 2 parts of hydrogen peroxide, 2 parts of Hac, 1 part of sodium silicate and 0.5 part of sodium hydrosulfite, adding the composite yarn and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 120min, cooling to 90 ℃ after the pretreatment is finished, discharging liquid, and cleaning the composite yarn by using hot water;
step 2, cooling the cleaned composite yarn to 30 ℃, sequentially adding a dye, a dispersing agent, a leveling agent, a buffering agent, a chelating agent and a color fixing agent, keeping the temperature at 100 ℃ for 20min, gradually heating the composite yarn to 180 ℃ and keeping the temperature for 30min, then cooling the composite yarn to 40 ℃ and keeping the temperature for 30min, and gradually heating the composite yarn to 160 ℃ and keeping the temperature for 100 min; the dye is mainly prepared by mixing dye liquid and an auxiliary coloring agent in a weight ratio of 18:1, wherein the auxiliary coloring agent is selected from: 60 parts of monochlorotriazine-beta-cyclodextrin, 20 parts of hexamethylphosphoric triamide and 20 parts of m-beta-hydroxyethyl sulfone sulfate ester aniline;
and 3, drying the dyed composite yarn to obtain the dyed composite yarn.
Performance test
And (3) testing the coloring rate: the finished products of the various embodiments are tested by a type 722 spectrophotometer; the standard GBT23976.1-2009 color rating assay was used.
And (3) softness detection: subjective hand feeling test is carried out on the coated yarn by textile experts; the softness of the coated yarn was classified into 6 grades, 1 being very soft, 2 being soft, 3 being softer, 4 being harder, 5 being hard, 6 being very hard.
Table 1 summary of part of the test results for the composite yarn of each example
The composite yarn prepared by the invention has high performance in all aspects, and the performance of the composite yarn before and after dyeing is almost unchanged, which is shown in table 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a composite yarn, its characterized in that, composite yarn comprises heart yearn and outsourcing material, the heart yearn comprises T400 complex elasticity long filament, the outsourcing material contains dacron, acrylic fibres short fiber, polyamide fibre, silk, spandex and wool, the weight of outsourcing material is 3-5 times of heart yearn.
2. The composite yarn of claim 1, wherein the T400 composite elastic filament and the outer covering material are prepared from the following raw materials in percentage by weight: 15-30% of T400 composite elastic filament, 25-42% of terylene, 14-17% of acrylic staple fiber, 8-13% of chinlon, 8-12% of silk, 6-9% of spandex and 3-7% of wool.
3. The composite yarn of claim 1, wherein the T400 composite elastic filament stock has the following major specifications: DTY 50D/24F, 75D/24F, 75D/36F, 100D/36F, 150D/48F, 300D/144F, 450D/216F, 150D/72F, 300D/96F.
4. A method of manufacturing a composite yarn according to claims 1 to 3, comprising the following manufacturing steps:
step 1, subjecting the terylene to first blowing-carding and first drawing to prepare first drawn slivers, and subjecting 50% of the first drawn slivers to first spun yarn on a spinning machine after a first roving process to prepare terylene spun yarn;
step 2, mixing the acrylic staple fibers, the chinlon, the silk, the spandex and the wool, performing second blowing-carding and second drawing to prepare second drawn slivers, performing third drawing with the remaining 50% of the first drawn slivers to obtain third drawn slivers, performing a second roving process on the third drawn slivers to obtain a blended roving of the terylene/acrylic staple fibers/the chinlon/the silk/the spandex/the wool, and then performing second spinning on a spinning machine to prepare a blended yarn of the terylene/acrylic staple fibers/the chinlon/the silk/the spandex/the wool;
step 3, the T400 composite elastic filament is used as a core wire, the polyester spun yarn is used as an outer wrapping fiber, and a core-spun spinning technology is adopted, and the polyester spun yarn/T400 composite elastic filament monofilament core-spun yarn is obtained on a ring spinning frame through a third spun yarn process;
step 4, adopting the terylene spun yarn/T400 composite elastic filament monofilament core-spun yarn as a core yarn, adopting the terylene/acrylic staple fiber/chinlon/silk/spandex/wool blended yarn as an outer-wrapping fiber, and adopting a core-spun spinning technology to prepare the composite yarn;
step 5, a spooling process: winding the manufactured composite yarn into a bobbin on a bobbin winder;
step 6, doubling and double twisting process: carrying out doubling and twisting treatment on the composite yarns, combining the two composite yarns produced in the steps into a doubling cylinder on doubling equipment, setting the doubling speed to be 250-450 m/min, producing the doubling cylinder prepared by doubling on a two-for-one twister, wherein the twisting direction of the two-for-one twister is different from that of a spinning frame and is S-twisted or Z-twisted, the speed during the two-for-one twisting is 3500-4500 rpm, and the ply twist of the two-for-one twisting is 1000-1200.
5. The method of claim 4, wherein the doubling and two-for-one twisting step further comprises: before doubling, the composite yarn as a single yarn must be placed in a warehouse for 10-20 days, and then placed in a steaming room for 18-38 hours again for doubling.
6. The method for preparing the composite yarn according to claim 4, wherein in the step of blending, the raw materials in the blend fiber are uniformly mixed according to the proportion, and then are packed and compressed into cotton bales which are closely arranged and vertically placed;
in the first blowing-carding unit and/or the second blowing-carding unit, water spraying and smoldering treatment are carried out on raw materials, the distance of the beater blade extending out of the rib is set to be 2.5-3 mm, and the rotating speed of the beater is increased to 950-1200 r/min on the basis of the conventional rotating speed;
in the first drawing and/or the second drawing, a forward drafting method is adopted, the number of combined paths is set as head-combined, two-combined and three-combined, and the drafting multiple of the back zone of the drawing frame is set to be 1.7-1.9 times of head-combined, 1.25-1.35 times of two-combined and 1.05-1.15 times of three-combined.
7. A method of colouring a composite yarn according to any one of claims 1 to 3, characterised by the steps of:
step 1, pretreating the composite yarn;
step 2, soaking the refined composite yarn in the dye for dyeing;
and 3, drying the dyed composite yarn to obtain the dyed composite yarn.
8. A method of coloring a composite yarn according to claim 7, wherein step 1 comprises: preparing a pretreatment liquid, wherein the pretreatment liquid comprises the following components in parts by weight: 5-6 parts of industrial soap, 3-4 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of soda ash, 1-2 parts of hydrogen peroxide, 1-2 parts of HAc, 1-2 parts of sodium silicate and 0.5-1 part of sodium hydrosulfite, adding the composite yarn and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 30-120 min, cooling to 50-90 ℃ after the pretreatment is finished, discharging liquid, and cleaning with hot water.
9. A method of coloring a composite yarn according to claim 7, wherein step 2 comprises: and (2) cooling the cleaned composite yarn to 30 ℃, sequentially adding a dye, a dispersing agent, a leveling agent, a buffering agent, a chelating agent and a color fixing agent, keeping the temperature at 50-100 ℃ for 10-30min, gradually heating the composite yarn to 130-180 ℃ and keeping the temperature for 30-60min, then cooling the composite yarn to 30-60 ℃ and keeping the temperature for 10-30min, and gradually heating the composite yarn to 160-230 ℃ and keeping the temperature for 50-100 min.
10. A method of dyeing a composite yarn according to claim 9, characterized in that the dye is obtained by mixing a dye liquor and an auxiliary colouring agent in a weight ratio of 18:1, the auxiliary colouring agent being selected from: 50-60 parts of chlorotriazine-beta-cyclodextrin, 20-30 parts of hexamethylphosphoric triamide and 20-30 parts of m-beta-hydroxyethyl sulfone sulfate ester aniline.
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Application publication date: 20211224 |