CN110760965A - Preparation method of core-spun yarn - Google Patents

Preparation method of core-spun yarn Download PDF

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Publication number
CN110760965A
CN110760965A CN201910928123.4A CN201910928123A CN110760965A CN 110760965 A CN110760965 A CN 110760965A CN 201910928123 A CN201910928123 A CN 201910928123A CN 110760965 A CN110760965 A CN 110760965A
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core
parts
spun yarn
fibers
fiber
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CN201910928123.4A
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陈环英
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Individual
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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
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • 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
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • 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
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/06—Inorganic compounds or elements
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
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    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
    • D06M11/72—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with metaphosphoric acids or their salts; with polyphosphoric acids or their salts; with perphosphoric acids or their salts
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/80—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/02—Cotton
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/04—Linen
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    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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    • D10B2201/08—Ramie
    • D—TEXTILES; PAPER
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    • 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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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention discloses a preparation method of core-spun yarn, and belongs to the technical field of textile preparation. The core-spun yarn of the invention neutralizes the characteristics of natural fiber, so that the strength and elasticity of cotton fiber are increased; after the cotton yarn prepared by natural plant fiber is soaked in the reinforcing adhesive with titanium dioxide, titanium dioxide particles are in a liquid state, especially in a polar medium, opposite charges are adsorbed due to charges on the surface to form a diffusion double electric layer, so that the effective diameter of the particles is increased, micro particles are firmly adsorbed in pores of the cotton yarn due to electrostatic effect when passing through the cotton yarn, the active carbon is formed by firing bamboo sheets at high temperature in the absence of oxygen, bamboo is acidic, and the prepared active carbon is also acidic, so that the antibacterial effect can be achieved, the moisture absorption characteristic of the cotton fiber can be improved, and clothes, quilts and the like prepared by the cotton fiber have sweat absorption capacity, are comfortable to wear and have wide application prospects.

Description

Preparation method of core-spun yarn
Technical Field
The invention discloses a preparation method of core-spun yarn, and belongs to the technical field of textile preparation.
Background
The core spun yarn is also called composite yarn or covering yarn, and is a new type of yarn formed by combining two or more kinds of fibers. The first covering yarn was a spun staple and spun staple covering yarn developed with cotton fiber as the sheath and polyester spun yarn as the core. The new bead yarn is provided with polyester and polyester core-spun yarn.
The core spun yarn is generally spun by using synthetic fiber filaments with good strength and elasticity as core filaments and wrapping short fibers such as cotton, wool and viscose fibers together for twisting. The core-spun yarn has the excellent performances of both filament core yarn and short fiber covering. The common core-spun yarn is polyester cotton core-spun yarn, which takes polyester filament as core yarn and is coated with cotton fiber. And the spandex core-spun yarn is a yarn which is made by taking spandex filaments as core yarns and wrapping other fibers. The knitted fabric or jeans made of the core-spun yarn can be stretched freely and fit comfortably when worn.
The main purpose is to reinforce the cotton canvas, maintain the water repellency of the cotton fiber expanded when meeting water, and utilize the tensile resistance, the tear resistance and the shrinkage resistance of the terylene when being wetted in rain. State of the art core spun yarns have been developed into many types, which are summarized as: short fiber and short fiber core-spun yarn, chemical fiber filament and short fiber core-spun yarn, and chemical fiber filament core-spun yarn. At present, the most used covering yarn is a covering yarn with a unique structure formed by using chemical fiber filament as a core yarn and covering various short fibers. The chemical fiber filament commonly used for the core yarn of the yarn comprises polyester filament, chinlon filament, spandex filament and the like. The outer short fiber is cotton, polyester cotton, terylene, chinlon, acrylic fiber, wool fiber, etc.
Besides the special structure, the core-spun yarn has many advantages, and can utilize the excellent physical properties of the chemical fiber filament of the core yarn and the properties and surface characteristics of the outer-covered short fiber to fully utilize the characteristics of the two fibers and make up for the defects of the two fibers. For example, the polyester cotton core-spun yarn can fully exert the advantages of stiffness and comfort, crease resistance, easy washing and quick drying of polyester filament yarns, and simultaneously can exert the advantages of good moisture absorption, less static electricity and difficult fluffing and pilling of the cotton fiber of the outer package. The woven fabric is easy to dye and finish, comfortable to wear, easy to wash, bright in color and elegant in appearance. The core-spun yarn can reduce the weight of the fabric while maintaining and improving the performance of the fabric, and utilizes different chemical properties of chemical fiber filaments and the outer covering fibers to rot off part of the outer covering fibers by chemicals during the dyeing and finishing of the fabric to prepare burnt-out fabric with three-dimensional pattern effect and the like. The core-spun yarn has the widest application range at present, and can be used for producing student clothes, work clothes, shirts, bathrobes fabrics, skirt fabrics, coverlets, decorative fabrics and the like.
In recent years, with the rapid development of science and technology and the continuous improvement of people's life, the requirements on the product quality and grade are increasingly improved, the product processed by the traditional spandex core-spun yarn cannot meet the single demand of people, the demand of various clothes fabrics is continuously increased, wherein the core-spun yarn has the characteristics of good air permeability and unique fancy effect by changing the components of the core-spun yarn, such as pure cotton yarn core-spun yarn, the fabric surface presents in a star-mesh granular shape, the three-dimensional sense is strong, the texture style is stiff and soft, the fabric has good elasticity, drapability, anti-wrinkle performance and the like, but the existing core-spun yarn also has the defects of low yarn forming strength, rough surface hand feeling, difficult water absorption and poor elasticity.
Therefore, the invention of the covering yarn with high strength and good water absorption is necessary for the technical field of textile preparation.
Disclosure of Invention
The invention mainly solves the technical problem of providing a preparation method of a core-spun yarn aiming at the defects of low strength, rough and hard surface hand feeling, difficult water absorption and poor elasticity after the core-spun yarn is formed at present.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the preparation method of the core-spun yarn comprises the following steps:
(1) drawing and bundling polyester long fibers and mixed fibers, immersing the polyester long fibers and the mixed fibers into an impregnation tank filled with a reinforced adhesive, heating the impregnation tank to 120-150 ℃, and drawing the polyester long fibers and the mixed fibers from the impregnation tank at a speed of 70-90 m/min to obtain combined fibers;
(2) performing a roving process on the combined fiber, and performing a spinning process to obtain a core-spun yarn;
the preparation method of the mixed fiber comprises the following specific steps:
(1) taking 80-120 parts by weight of natural plant fibers, soaking in 400-450 parts by weight of a 30% sulfuric acid solution at a soaking temperature of 50-55 ℃ for 1-2 hours, taking out, putting into an aluminum pot, adding 100-120 parts by weight of a 40% sodium hydroxide solution, 50-60 parts by weight of a 4% sodium polyphosphate solution and 30-40 parts by weight of a 10% sodium silicate solution, heating in a water bath to 80-90 ℃, cooking for 2-3 hours, filtering, and removing filtrate to obtain alkali-cooked fibers;
(2) mixing waste cotton fabrics or cotton yarn leftover materials, crushing the mixture by using a crusher to obtain cotton fibers with the length of 2-3 mm, mixing the alkali-boiled fibers and the cotton fibers according to the mass ratio of 1: 4, soaking the mixture for 8-10 min by using 150-180 mL hydrochloric acid with the mass fraction of 10%, placing the mixture into an ultrasonic machine, performing ultrasonic treatment for 10-15 min at the frequency of 25-30 kHz, washing the mixture with water, placing the mixture into an oven, heating to 100-110 ℃, and drying for 10-12 h to obtain mixed fibers;
the reinforced adhesive is prepared by the following specific steps:
diluting 4-5 parts by weight of hydroxypropyl distarch phosphate with 70-80 parts by weight of water, heating to 70-80 ℃ to obtain viscous slurry, adding 20-25 parts by weight of nano titanium dioxide, 10-15 parts by weight of tourmaline powder and 10-15 parts by weight of zinc oxide into the viscous slurry, and stirring to obtain the reinforced adhesive;
the polyester long fiber is prepared by the following specific steps:
(1) placing bamboo chips in a muffle furnace, pumping out air in the muffle furnace, heating to 1000-1100 ℃, firing for 3-4 h to obtain bamboo charcoal, crushing the bamboo charcoal by using an airflow crusher to obtain activated carbon powder with the particle size of 400-500 nm, and mixing the master batch of the ethylene terephthalate and the activated carbon powder according to the mass ratio of 3: 2 to obtain pre-dispersing material;
(2) placing the pre-dispersed material into a screw extruder, carrying out melt extrusion to obtain a polyester melt, feeding the polyester melt into a spinning box with the set temperature of 230-250 ℃, and spraying polyester long fibers in a triangular hollow spinneret plate.
The core-spun yarn is prepared by drawing and bundling the polyester long fiber and the mixed fiber in the step (1) according to the mass ratio of 1: 2.
The core-spun yarn is prepared by adopting the process principle of 'forward drafting, large gauge, light weight and low speed' in the merging process in the step (1).
The core-spun yarn is prepared by the following concrete preparation steps (1) according to the combination technological parameters: the first drawing is 10.8-12.8 g/5m in fixed quantity, the back zone is drafted by 1.30-1.35 times, the gauge is 10 multiplied by 18mm, the front tension is drafted by 1.12 times, the second drawing is 9.8-10.9 g/5m in fixed quantity, the back zone is drafted by 1.16-1.20 times, the gauge is 10 multiplied by 16 mm, the front tension is drafted by 1.00 times, and the first drawing and the second drawing adopt 6 pieces of combination.
The roving process in the specific preparation step (2) of the core-spun yarn adopts the process principle of light basis weight and large gauge.
The roving technological parameters in the core-spun yarn preparation step (2) are as follows: the total draft is 7.29 times, the draft in the back zone is 1.28 times, the twist coefficient is 75.7, the jaw gauge is 5.5mm, the roller gauge is 29 mm multiplied by 40 mm, the ration is 4.2g/10m, and the speed of the front roller is 227 r/min; spinning process parameters: the total draft is 26.56 times, the draft in the back zone is 1.21 times, the twist coefficient is 357, the spindle speed is 8500-9000 r/min, the jaw gauge is 4.0mm, the roller gauge is 18mm multiplied by 35mm, and the front roller speed is 172 r/min.
The natural plant fiber in the specific preparation step (1) of the mixed fiber is one of flax fiber and ramie fiber.
The reinforced adhesive is prepared from the raw materials in the step (1) in parts by weight, including 4-5 parts of hydroxypropyl distarch phosphate 70-80 parts of water, 20-25 parts of nano titanium dioxide, 10-15 parts of tourmaline powder and 10-15 parts of zinc oxide.
The intrinsic viscosity of the polyester melt obtained in the specific preparation step (2) of the polyester long fiber is 0.55-0.60 dL/g.
The invention has the beneficial effects that:
(1) the invention uses natural plant fiber as raw material, and through acid dipping, alkali boiling under water bath heating condition, filtering to obtain alkali boiling fiber, mixing alkali boiling fiber with cotton fiber, soaking and neutralizing with hydrochloric acid, ultrasonic processing, washing and drying to obtain mixed fiber, using bamboo sheet as raw material, baking at high temperature and without oxygen to obtain active carbon, mixing active carbon and polyester to obtain artificial fiber, mixing the mixed fiber with natural plant fiber, dipping in reinforced adhesive, drawing and combining. The core-spun yarn obtained by the spinning process has the characteristics of natural fibers, makes up for the defects of cotton fibers, increases the strength and elasticity of the cotton fibers and optimizes the surface hand feeling of the core-spun yarn;
(2) the invention uses natural plant fiber to prepare cotton yarn and immerses in the reinforcing adhesive with titanium dioxide, the titanium dioxide particles are in liquid state, especially in polar medium, because the surface has electric charge, it can absorb opposite electric charge to form diffusion double electric layer, the effective diameter of the particles is increased, when the particles are close to each other, because of the same electric charge, they repel each other, it is good for the stability of dispersion system, the negative charge on the fiber surface can make the titanium dioxide small particles as coating film positively charged, thus the tiny particles can be firmly absorbed in the pores of cotton yarn by electrostatic effect when passing through the cotton yarn, the active carbon is made by firing bamboo sheet at high temperature and without oxygen, the bamboo is acid, the active carbon is acid, thus it can play the bacteriostasis, and can improve the moisture absorption property of cotton fiber, make the clothes, quilt, etc. prepared by it have sweat absorption ability, more comfortable to wear and has wide application prospect.
Detailed Description
According to the weight parts, 80-120 parts of natural plant fibers are placed in 400-450 parts of sulfuric acid solution with the mass fraction of 30% for soaking, the soaking temperature is controlled to be 50-55 ℃, the soaking treatment time is 1-2 hours, the natural plant fibers are taken out and placed in an aluminum pot, 100-120 parts of sodium hydroxide solution with the mass fraction of 40%, 50-60 parts of sodium polyphosphate solution with the mass fraction of 4% and 30-40 parts of sodium silicate solution with the mass fraction of 10% are added, the mixture is heated in a water bath to 80-90 ℃, and after being steamed and boiled for 2-3 hours, the mixture is filtered, filtrate is removed, and alkali-boiled fibers are obtained, wherein the natural plant fibers are one of flax fibers and ramie fibers; mixing waste cotton fabrics or cotton yarn leftover materials, crushing the mixture by using a crusher to obtain cotton fibers with the length of 2-3 mm, mixing the alkali-boiled fibers and the cotton fibers according to the mass ratio of 1: 4, soaking the mixture for 8-10 min by using 150-180 mL hydrochloric acid with the mass fraction of 10%, placing the mixture into an ultrasonic machine, performing ultrasonic treatment for 10-15 min at the frequency of 25-30 kHz, washing the mixture with water, placing the mixture into an oven, heating to 100-110 ℃, and drying for 10-12 h to obtain mixed fibers for later use; diluting 4-5 parts by weight of hydroxypropyl distarch phosphate with 70-80 parts by weight of water, heating to 70-80 ℃ to obtain viscous slurry, and then adding 20-25 parts by weight of nano titanium dioxide, 10-15 parts by weight of tourmaline powder and 10-15 parts by weight of zinc oxide into the viscous slurry and stirring to obtain a reinforced adhesive for later use; placing bamboo chips in a muffle furnace, pumping out air in the muffle furnace, heating to 1000-1100 ℃, firing for 3-4 h to obtain bamboo charcoal, crushing the bamboo charcoal by using an airflow crusher to obtain activated carbon powder with the particle size of 400-500 nm, and mixing the master batch of the ethylene terephthalate and the activated carbon powder according to the mass ratio of 3: 2 to obtain pre-dispersing material; placing the pre-dispersing material into a screw extruder, carrying out melt extrusion to obtain a polyester melt, wherein the intrinsic viscosity of the obtained polyester melt is 0.55-0.60 dL/g, feeding the polyester melt into a spinning box body with the set temperature of 230-250 ℃, and spraying polyester long fibers in a triangular hollow spinneret plate; drawing and bundling the polyester long fiber and the standby mixed fiber according to the mass ratio of 1: 2, immersing the polyester long fiber and the standby mixed fiber into an impregnation tank filled with the standby reinforced adhesive, heating the impregnation tank to 120-150 ℃, and drawing the polyester long fiber and the standby mixed fiber at the speed of 70-90 m/min from the impregnation tank to obtain the combined fiber, wherein the drawing and bundling process adopts the process principle of 'forward drawing, large gauge, light weight and low speed', and the process parameters are as follows: the first drawing is 10.8-12.8 g/5m in fixed quantity, the back zone is drafted by 1.30-1.35 times, the gauge is 10 x 18mm, the front tension is drafted by 1.12 times, the second drawing is 9.8-10.9 g/5m in fixed quantity, the back zone is drafted by 1.16-1.20 times, the gauge is 10 x 16 mm, the front tension is drafted by 1.00 times, and the first drawing and the second drawing adopt 6 drawing frames; and then carrying out a roving process on the combined fiber by adopting a light quantitative and large-gauge process principle, wherein the roving process parameters are 7.29 times of total draft, 1.28 times of draft in a rear area, 75.7 of twist coefficient, 5.5mm of jaw gauge, 29 mm of roller gauge multiplied by 40 mm, 4.2g/10m of ration and 227r/min of front roller speed, and then carrying out a spinning process, wherein the spinning process parameters are as follows: the total draft is 26.56 times, the rear zone draft is 1.21 times, the twist coefficient is 357, the spindle speed is 8500-9000 r/min, the jaw gauge is 4.0mm, the roller gauge is 18mm multiplied by 35mm, and the front roller speed is 172 r/min, so that the core-spun yarn is obtained.
Example 1
Natural plant fibers: flax fiber
Preparing mixed fibers:
according to the weight parts, 80 parts of flax fibers are soaked in 400 parts of sulfuric acid solution with the mass fraction of 30%, the soaking temperature is controlled to be 50 ℃, the soaking treatment time is 1h, the flax fibers are taken out and then placed in an aluminum pot, 100 parts of sodium hydroxide solution with the mass fraction of 40%, 50 parts of sodium polyphosphate solution with the mass fraction of 4% and 30 parts of sodium silicate solution with the mass fraction of 10% are added, the flax fibers are heated in a water bath to 80 ℃, and after the flax fibers are cooked for 2h, the flax fibers are filtered, the filtrate is removed, and alkali-cooked fibers are obtained, wherein the natural plant fibers are one of flax fibers and ramie fibers;
mixing waste cotton fabrics or cotton yarn leftover materials, crushing by using a crusher to obtain cotton fibers with the length of 2mm, mixing the alkali-boiled fibers and the cotton fibers according to the mass ratio of 1: 4, soaking for 8min by using 150mL of hydrochloric acid with the mass fraction of 10%, placing into an ultrasonic machine, carrying out ultrasonic treatment for 10min at the frequency of 25kHz, washing with water, placing into a drying oven, heating to 100 ℃, and drying for 10h to obtain mixed fibers for later use;
preparation of the reinforcing adhesive:
diluting 4 parts of hydroxypropyl distarch phosphate with 70 parts of water, heating to 70 ℃ to obtain viscous slurry, and then adding 20 parts of nano titanium dioxide, 10 parts of tourmaline powder and 10 parts of zinc oxide into the viscous slurry and stirring to obtain a reinforced adhesive for later use;
preparation of polyester long fiber:
placing bamboo sheets in a muffle furnace, extracting air in the muffle furnace, heating to 1000 ℃, firing for 3h to obtain bamboo charcoal, crushing the bamboo charcoal by using an airflow crusher to obtain activated carbon powder with the particle size of 400nm, and mixing the master batch of the ethylene glycol terephthalate and the activated carbon powder according to the mass ratio of 3: 2 to obtain pre-dispersing material;
putting the pre-dispersing material into a screw extruder, carrying out melt extrusion to prepare a polyester melt, wherein the intrinsic viscosity of the obtained polyester melt is 0.55dL/g, then sending the polyester melt into a spinning box body with the set temperature of 230 ℃, and spraying polyester long fibers in a triangular hollow spinneret plate;
preparation of the core-spun yarn:
drawing and bundling the polyester long fiber and the standby mixed fiber according to the mass ratio of 1: 2, immersing the polyester long fiber and the standby mixed fiber into an impregnation tank filled with standby reinforced adhesive, heating the impregnation tank to 120 ℃, and drawing from the impregnation tank at the speed of 70m/min to obtain the combined fiber, wherein the drawing and bundling process adopts the process principle of 'forward drawing, large spacing, light weight and low speed', and the process parameters are as follows: the first drawing is quantitative 10.8g/5m, the back zone is drafted by 1.30 times, the gauge is 10 multiplied by 18mm, the front tension is drafted by 1.12 times, the second drawing is quantitative 9.8 g/5m, the back zone is drafted by 1.16 times, the gauge is 10 multiplied by 16 mm, the front tension is drafted by 1.00 time, and the first drawing and the second drawing adopt 6 drawing;
and then carrying out a roving process on the combined fiber by adopting a light quantitative and large-gauge process principle, wherein the roving process parameters are 7.29 times of total draft, 1.28 times of draft in a rear area, 75.7 of twist coefficient, 5.5mm of jaw gauge, 29 mm of roller gauge multiplied by 40 mm, 4.2g/10m of ration and 227r/min of front roller speed, and then carrying out a spinning process, wherein the spinning process parameters are as follows: the total draft is 26.56 times, the draft in the back zone is 1.21 times, the twist coefficient is 357, the spindle speed is 8500r/min, the jaw gauge is 4.0mm, the roller gauge is 18mm multiplied by 35mm, and the front roller speed is 172 r/min, so that the core-spun yarn is obtained.
Example 2
Natural plant fibers: flax fiber
Preparing mixed fibers:
100 parts of flax fibers are soaked in 420 parts of sulfuric acid solution with the mass fraction of 30%, the soaking temperature is controlled to be 52 ℃, the soaking treatment time is 1.5 hours, the flax fibers are taken out and then placed in an aluminum pot, 110 parts of sodium hydroxide solution with the mass fraction of 40%, 55 parts of sodium polyphosphate solution with the mass fraction of 4% and 35 parts of sodium silicate solution with the mass fraction of 10% are added, the flax fibers are heated to 85 ℃ in a water bath, and after being steamed and boiled for 2.5 hours, the flax fibers are filtered, filtrate is removed, and alkali-boiled fibers are obtained, wherein the natural plant fibers are one of flax fibers and ramie fibers;
mixing waste cotton fabrics or cotton yarn leftover materials, crushing by using a crusher to obtain cotton fibers with the length of 2mm, mixing the alkali-boiled fibers and the cotton fibers according to the mass ratio of 1: 4, soaking for 9min by using 170mL of hydrochloric acid with the mass fraction of 10%, putting into an ultrasonic machine, carrying out ultrasonic treatment for 12min at the frequency of 27kHz, washing with water, putting into an oven, heating to 105 ℃, and drying for 11h to obtain mixed fibers for later use;
preparation of the reinforcing adhesive:
diluting 4 parts of hydroxypropyl distarch phosphate with 75 parts of water, heating to 75 ℃ to obtain viscous slurry, adding 22 parts of nano titanium dioxide, 12 parts of tourmaline powder and 12 parts of zinc oxide into the viscous slurry, and stirring to obtain a reinforced adhesive for later use;
preparation of polyester long fiber:
placing bamboo sheets in a muffle furnace, extracting air in the muffle furnace, heating to 1050 ℃, firing for 3.5h to obtain bamboo charcoal, crushing the bamboo charcoal by using an airflow crusher to obtain activated carbon powder with the particle size of 450nm, and mixing the master batch of the ethylene terephthalate and the activated carbon powder according to the mass ratio of 3: 2 to obtain pre-dispersing material;
putting the pre-dispersing material into a screw extruder, carrying out melt extrusion to prepare a polyester melt, wherein the intrinsic viscosity of the obtained polyester melt is 0.57dL/g, then sending the polyester melt into a spinning box body with the set temperature of 240 ℃, and spraying polyester long fibers in a triangular hollow spinneret plate;
preparation of the core-spun yarn:
drawing and bundling the polyester long fiber and the standby mixed fiber according to the mass ratio of 1: 2, immersing the polyester long fiber and the standby mixed fiber into an impregnation tank filled with standby reinforced adhesive, heating the impregnation tank to 140 ℃, and drawing the polyester long fiber and the standby mixed fiber at the speed of 80m/min from the impregnation tank to obtain the combined fiber, wherein the drawing and bundling process adopts the process principle of 'forward drawing, large spacing, light weight and low speed', and the process parameters are as follows: the first drawing is quantitative 11.8g/5m, the back zone is drafted by 1.32 times, the gauge is 10 multiplied by 18mm, the front tension is drafted by 1.12 times, the second drawing is quantitative 10.5 g/5m, the back zone is drafted by 1.18 times, the gauge is 10 multiplied by 16 mm, the front tension is drafted by 1.00 time, and the first drawing and the second drawing adopt 6 drawing;
and then carrying out a roving process on the combined fiber by adopting a light quantitative and large-gauge process principle, wherein the roving process parameters are 7.29 times of total draft, 1.28 times of draft in a rear area, 75.7 of twist coefficient, 5.5mm of jaw gauge, 29 mm of roller gauge multiplied by 40 mm, 4.2g/10m of ration and 227r/min of front roller speed, and then carrying out a spinning process, wherein the spinning process parameters are as follows: the total draft is 26.56 times, the draft in the back zone is 1.21 times, the twist coefficient is 357, the spindle speed is 8700r/min, the jaw gauge is 4.0mm, the roller gauge is 18mm multiplied by 35mm, and the front roller speed is 172 r/min, so that the core-spun yarn is obtained.
Example 3
Natural plant fibers: ramie fiber
Preparing mixed fibers:
according to the weight parts, 120 parts of ramie fibers are soaked in 450 parts of sulfuric acid solution with the mass fraction of 30%, the soaking temperature is controlled to be 55 ℃, the soaking treatment time is 2 hours, the ramie fibers are taken out and then placed in an aluminum pot, 120 parts of sodium hydroxide solution with the mass fraction of 40%, 60 parts of sodium polyphosphate solution with the mass fraction of 4% and 40 parts of sodium silicate solution with the mass fraction of 10% are added, the mixture is heated in a water bath to 90 ℃, and after being steamed and boiled for 3 hours, the mixture is filtered, filtrate is removed, and alkali-boiled fibers are obtained, wherein the natural plant fibers are one of flax fibers and ramie fibers;
mixing waste cotton fabrics or cotton yarn leftover materials, crushing by using a crusher to obtain cotton fibers with the length of 3mm, mixing the alkali-boiled fibers and the cotton fibers according to the mass ratio of 1: 4, soaking for 10min by using 180mL of hydrochloric acid with the mass fraction of 10%, placing into an ultrasonic machine, carrying out ultrasonic treatment for 15min at the frequency of 30kHz, washing with water, placing into an oven, heating to 110 ℃, and drying for 12h to obtain mixed fibers for later use;
preparation of the reinforcing adhesive:
according to the weight parts, 5 parts of hydroxypropyl distarch phosphate are diluted by 80 parts of water, heated to 80 ℃ to obtain viscous slurry, and then 25 parts of nano titanium dioxide, 15 parts of tourmaline powder and 15 parts of zinc oxide are added into the viscous slurry and stirred to obtain a reinforced adhesive for later use;
preparation of polyester long fiber:
placing bamboo sheets in a muffle furnace, extracting air in the muffle furnace, heating to 1100 ℃, firing for 4h to obtain bamboo charcoal, crushing the bamboo charcoal by using an airflow crusher to obtain activated carbon powder with the particle size of 500nm, and mixing the master batch of the ethylene glycol terephthalate and the activated carbon powder according to the mass ratio of 3: 2 to obtain pre-dispersing material;
putting the pre-dispersing material into a screw extruder, carrying out melt extrusion to prepare a polyester melt, wherein the intrinsic viscosity of the obtained polyester melt is 0.60dL/g, then feeding the polyester melt into a spinning box body with the set temperature of 250 ℃, and spraying polyester long fibers in a triangular hollow spinneret plate;
preparation of the core-spun yarn:
drawing and bundling the polyester long fiber and the standby mixed fiber according to the mass ratio of 1: 2, immersing the polyester long fiber and the standby mixed fiber into an impregnation tank filled with standby reinforced adhesive, heating the impregnation tank to 150 ℃, and drawing from the impregnation tank at the speed of 90m/min to obtain the combined fiber, wherein the drawing and bundling process adopts the process principle of 'forward drawing, large spacing, light weight and low speed', and the process parameters are as follows: the first drawing is quantitative 12.8g/5m, the back zone is drafted by 1.35 times, the gauge is 10 multiplied by 18mm, the front tension is drafted by 1.12 times, the second drawing is quantitative 10.9g/5m, the back zone is drafted by 1.20 times, the gauge is 10 multiplied by 16 mm, the front tension is drafted by 1.00 times, and the first drawing and the second drawing adopt 6 drawing;
and then carrying out a roving process on the combined fiber by adopting a light quantitative and large-gauge process principle, wherein the roving process parameters are 7.29 times of total draft, 1.28 times of draft in a rear area, 75.7 of twist coefficient, 5.5mm of jaw gauge, 29 mm of roller gauge multiplied by 40 mm, 4.2g/10m of ration and 227r/min of front roller speed, and then carrying out a spinning process, wherein the spinning process parameters are as follows: the total draft is 26.56 times, the rear zone draft is 1.21 times, the twist coefficient is 357, the spindle speed is 9000r/min, the jaw gauge is 4.0mm, the roller gauge is 18mm multiplied by 35mm, and the front roller speed is 172 r/min, so that the core-spun yarn is obtained.
Comparative example 1: essentially the same procedure as in example 2 was followed except that the blend fibers were absent.
Comparative example 2: essentially the same procedure as in example 2 was followed except that the reinforcing binder was absent.
Comparative example 3: covering yarn produced by Hangzhou company.
The strength test of the core-spun yarn is carried out by adopting an HD021N type electronic single yarn strength tester according to the GB/T3916 standard.
Water absorption test: and (3) standing the core-spun yarn for 24 hours in an environment with the temperature of 25 ℃ and the relative humidity of 60% to balance the moisture regain, measuring the dry weight of the core-spun yarn, putting the core-spun yarn into water for 24 hours to swell and absorb water to saturation, filtering the core-spun yarn for 30 minutes by using a 200-mesh screen, filtering excessive water on the surface of the core-spun yarn, weighing the weight of the core-spun yarn, and calculating the water absorption.
The elasticity test adopts a fabric elasticity testing machine and a fabric elastic recovery rate tester to detect.
Table 1: core spun yarn Property measurement results
Detecting items Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Comparative example 3
Single yarn breaking tenacity (cN) 4710.6 4711.5 4712.3 2564.5 2832.8 2845.9
Elongation at Break (%) 10.24 10.26 10.32 7.12 7.23 7.56
Surface hand feeling Is compliant Is compliant Is compliant Coarse and hard Coarse and hard Coarse and hard
Water absorption/%) 380.3 382.4 385.2 255.4 265.8 304.3
Longitudinal elastic recovery (%) 94.5 94.7 94.9 75.4 75.6 80.3
Transverse elastic recovery (%) 95.0 95.2 95.3 72.0 72.3 78.5
From the above, it can be seen from table 1 that the core-spun yarn of the present invention has high strength, good surface hand feeling, high water absorption, easy water absorption, good elasticity, high longitudinal and transverse elastic recovery rates, and has a wide application prospect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is to be construed in all aspects and as broadly as possible, and all changes, equivalents and modifications that fall within the true spirit and scope of the invention are therefore intended to be embraced therein.

Claims (9)

1. A preparation method of core-spun yarn is characterized by comprising the following specific preparation steps:
(1) drawing and bundling polyester long fibers and mixed fibers, immersing the polyester long fibers and the mixed fibers into an impregnation tank filled with a reinforced adhesive, heating the impregnation tank to 120-150 ℃, and drawing the polyester long fibers and the mixed fibers from the impregnation tank at a speed of 70-90 m/min to obtain combined fibers;
(2) performing a roving process on the combined fiber, and performing a spinning process to obtain a core-spun yarn;
the preparation method of the mixed fiber comprises the following specific steps:
(1) taking 80-120 parts by weight of natural plant fibers, soaking in 400-450 parts by weight of a 30% sulfuric acid solution at a soaking temperature of 50-55 ℃ for 1-2 hours, taking out, putting into an aluminum pot, adding 100-120 parts by weight of a 40% sodium hydroxide solution, 50-60 parts by weight of a 4% sodium polyphosphate solution and 30-40 parts by weight of a 10% sodium silicate solution, heating in a water bath to 80-90 ℃, cooking for 2-3 hours, filtering, and removing filtrate to obtain alkali-cooked fibers;
(2) mixing waste cotton fabrics or cotton yarn leftover materials, crushing the mixture by using a crusher to obtain cotton fibers with the length of 2-3 mm, mixing the alkali-boiled fibers and the cotton fibers according to the mass ratio of 1: 4, soaking the mixture for 8-10 min by using 150-180 mL hydrochloric acid with the mass fraction of 10%, placing the mixture into an ultrasonic machine, performing ultrasonic treatment for 10-15 min at the frequency of 25-30 kHz, washing the mixture with water, placing the mixture into an oven, heating to 100-110 ℃, and drying for 10-12 h to obtain mixed fibers;
the reinforced adhesive is prepared by the following specific steps:
diluting 4-5 parts by weight of hydroxypropyl distarch phosphate with 70-80 parts by weight of water, heating to 70-80 ℃ to obtain viscous slurry, adding 20-25 parts by weight of nano titanium dioxide, 10-15 parts by weight of tourmaline powder and 10-15 parts by weight of zinc oxide into the viscous slurry, and stirring to obtain the reinforced adhesive;
the polyester long fiber is prepared by the following specific steps:
(1) placing bamboo chips in a muffle furnace, pumping out air in the muffle furnace, heating to 1000-1100 ℃, firing for 3-4 h to obtain bamboo charcoal, crushing the bamboo charcoal by using an airflow crusher to obtain activated carbon powder with the particle size of 400-500 nm, and mixing the master batch of the ethylene terephthalate and the activated carbon powder according to the mass ratio of 3: 2 to obtain pre-dispersing material;
(2) placing the pre-dispersed material into a screw extruder, carrying out melt extrusion to obtain a polyester melt, feeding the polyester melt into a spinning box with the set temperature of 230-250 ℃, and spraying polyester long fibers in a triangular hollow spinneret plate.
2. A method of making a core spun yarn as claimed in claim 1, wherein: the core-spun yarn is prepared by drawing and bundling the polyester long fiber and the mixed fiber in the step (1) according to the mass ratio of 1: 2.
3. A method of making a core spun yarn as claimed in claim 1, wherein: the core-spun yarn is prepared by adopting the process principle of 'forward drafting, large gauge, light weight and low speed' in the merging process in the step (1).
4. A method of making a core spun yarn as claimed in claim 1, wherein: the core-spun yarn is prepared by the following concrete preparation steps (1) according to the combination technological parameters: the first drawing is 10.8-12.8 g/5m in fixed quantity, the back zone is drafted by 1.30-1.35 times, the gauge is 10 multiplied by 18mm, the front tension is drafted by 1.12 times, the second drawing is 9.8-10.9 g/5m in fixed quantity, the back zone is drafted by 1.16-1.20 times, the gauge is 10 multiplied by 16 mm, the front tension is drafted by 1.00 times, and the first drawing and the second drawing adopt 6 pieces of combination.
5. A method of making a core spun yarn as claimed in claim 1, wherein: the core-spun yarn tool
The roving process in the step (2) of preparing the body adopts the process principle of light weight and large gauge.
6. A method of making a core spun yarn as claimed in claim 1, wherein: the roving technological parameters in the core-spun yarn preparation step (2) are as follows: the total draft is 7.29 times, the draft in the back zone is 1.28 times, the twist coefficient is 75.7, the jaw gauge is 5.5mm, the roller gauge is 29 mm multiplied by 40 mm, the ration is 4.2g/10m, and the speed of the front roller is 227 r/min; spinning process parameters: the total draft is 26.56 times, the draft in the back zone is 1.21 times, the twist coefficient is 357, the spindle speed is 8500-9000 r/min, the jaw gauge is 4.0mm, the roller gauge is 18mm multiplied by 35mm, and the front roller speed is 172
r/min。
7. A method of making a core spun yarn as claimed in claim 1, wherein: the mixed fiber has specific structure
The natural plant fiber in the preparation step (1) is one of flax fiber and ramie fiber.
8. A method of making a core spun yarn as claimed in claim 1, wherein: the reinforced adhesive is prepared from the raw materials in the step (1) in parts by weight, including 4-5 parts of hydroxypropyl distarch phosphate 70-80 parts of water, 20-25 parts of nano titanium dioxide, 10-15 parts of tourmaline powder and 10-15 parts of zinc oxide.
9. A method of making a core spun yarn as claimed in claim 1, wherein: the intrinsic viscosity of the polyester melt obtained in the specific preparation step (2) of the polyester long fiber is 0.55-0.60 dL/g.
CN201910928123.4A 2019-09-28 2019-09-28 Preparation method of core-spun yarn Withdrawn CN110760965A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112127155A (en) * 2020-09-27 2020-12-25 安徽荣业纺织有限公司 Treatment process for improving fluffiness of cotton and linen fabric in wearing process
CN112301491A (en) * 2020-09-27 2021-02-02 江西金源纺织有限公司 Micelle improved polyester-cotton composite yarn and preparation method thereof
CN112680845B (en) * 2020-12-05 2022-02-01 安徽富颍纺织科技股份有限公司 Waterproof and antibacterial blended regenerated cotton yarn

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112127155A (en) * 2020-09-27 2020-12-25 安徽荣业纺织有限公司 Treatment process for improving fluffiness of cotton and linen fabric in wearing process
CN112301491A (en) * 2020-09-27 2021-02-02 江西金源纺织有限公司 Micelle improved polyester-cotton composite yarn and preparation method thereof
CN112680845B (en) * 2020-12-05 2022-02-01 安徽富颍纺织科技股份有限公司 Waterproof and antibacterial blended regenerated cotton yarn

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