CN110760962A - Spinning process of high-strength fireproof yarn - Google Patents
Spinning process of high-strength fireproof yarn Download PDFInfo
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- CN110760962A CN110760962A CN201911288590.1A CN201911288590A CN110760962A CN 110760962 A CN110760962 A CN 110760962A CN 201911288590 A CN201911288590 A CN 201911288590A CN 110760962 A CN110760962 A CN 110760962A
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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
-
- 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
- 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
- D01F1/103—Agents inhibiting growth of microorganisms
-
- 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
-
- 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
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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
- D02G3/16—Yarns or threads made from mineral substances
- D02G3/18—Yarns or threads made from mineral substances from glass or the like
-
- 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
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
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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
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
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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
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
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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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- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a spinning process of high-strength fireproof yarns, which comprises the following steps: (1) selecting raw materials; (2) opening the clear; (3) carding cotton; (4) drawing; (5) roving; (6) spinning; (7) spooling; (8) preparing a fire retardant; (9) preparing a N-hexamethylol amino cyclotriphosphazene solution; (10) and preparing the fireproof yarn. Compared with the prior art, the invention has the beneficial effects that: the blended yarn prepared by the spinning process integrates the respective advantages of the nano polyester fiber, the antibacterial fiber, the glass fiber and the high-strength polyester fiber, and has the excellent performances of antibiosis, deodorization, warm keeping, moisture keeping, good elasticity, corrosion resistance, high strength and long service life; meanwhile, the blended yarn is subjected to fireproof treatment, so that the flame retardant property of the yarn is improved, and the use safety of the yarn is improved.
Description
Technical Field
The invention relates to the field of spinning, in particular to a spinning process of high-strength fireproof yarn.
Background
With the change of the consumption concept of people, the requirements of consumers on the clothes are not only beautiful, comfortable and safe, but also require the fabric of the clothes to have certain functionality. Various functional textile materials appear in the market at present, but the functional effect is poor in performance, the function is single, and the difference exists with the requirement of consumers on functional clothes.
The polyester fiber is polyethylene terephthalate (PET) fiber, has excellent performance, easily obtained raw materials and wide application, and is synthetic fiber with the fastest development, the highest yield and the widest application range in various synthetic fibers. However, polyester fibers also suffer from a number of deficiencies, including slow crystallization, poor dimensional stability, poor barrier properties, and the like. With the development of nanotechnology, the crystallization rate, the mechanical property, the heat resistance and the weather resistance of the polyester fiber can be improved by modifying the polyester fiber with the nanometer material, and the nanometer material also plays a good positive role in the aspects of antibiosis, deodorization, water resistance, oil resistance and the like of the polyester fiber.
The polyester fiber is an important variety in synthetic fiber and is the trade name of polyester fiber in China. The polyester fiber has the characteristics of firmness, durability, good elasticity, difficult deformation, corrosion resistance, insulation, stiffness, easy washing, quick drying and the like, and is popular among people. The polyester fiber fabric has more varieties, and besides weaving pure polyester fabrics, the polyester fiber fabric also has a plurality of products blended or interwoven with various textile fibers and polyester, so that the defects of the pure polyester fabrics are overcome, and better performance is exerted.
At present, with the rapid development of the flame-retardant fabric industry, the quality requirement of the market on the blended yarn is higher and higher, and the blended yarn is generally used outdoors, so that the more strict requirement on the flame retardant property of the blended yarn is provided, but the flame retardant effect of the blended yarn is not ideal, and the environment is polluted due to heavier odor in the production and use processes.
Therefore, it is necessary to produce a blended yarn which combines antimicrobial and flame-retardant properties and has high strength.
Disclosure of Invention
The invention aims to provide a spinning process of high-strength fireproof yarns, which aims to overcome the defects in the prior art, and can improve the strength of blended yarns, enable the yarns to have fireproof performance, and greatly improve the service performance and the safety performance.
The invention provides a spinning process of high-strength fireproof yarns, which comprises the following steps:
(1) selecting raw materials: the blended yarn comprises the following raw materials in percentage by weight: 15-30% of nano polyester fiber, 10-20% of antibacterial fiber, 20-30% of glass fiber and 20-30% of high-strength polyester fiber;
the nano polyester fiber comprises the following components in parts by weight: 20-30 parts of polyester fiber, 10-15 parts of nano particles, 5-8 parts of compatibilizer, 0.2-0.5 part of surface treating agent, 0.3-0.8 part of nucleating agent, 1-2 parts of dispersing agent and 0.5-0.8 part of antioxidant;
the antibacterial fiber is prepared by the steps of carrying out dipping and squeezing, crushing, ageing, yellowing, continuous dissolving, filtering and defoaming treatment on pulp containing a raw material of cellulose fiber to obtain a spinning solution, and then preparing an antibacterial agent: firstly, uniformly mixing glucose, yeast extract, agar, peptone and deionized water, regulating the pH value to 5.0-6.0 by using citric acid, sterilizing at high temperature to obtain a fermentation culture medium, inoculating acetobacter xylinum into the fermentation culture medium according to the inoculation amount of 5-8% (V/V), culturing for 7-10 days in a constant-temperature incubator at 30-32 ℃, taking out a gelatinous product to obtain a bacterial cellulose hydrogel membrane, soaking the bacterial cellulose hydrogel membrane in a sodium hydroxide solution for multiple times, soaking and washing with deionized water until a washing solution is neutral to obtain a purified bacterial cellulose gel, adding silver nitrate and zinc nitrate into the deionized water, uniformly mixing, and dropwise adding a trisodium citrate solution with the mass fraction of 3% at a rate of 1-2mL/min to obtain a composite silver-zinc antibacterial agent; mixing the composite silver-zinc antibacterial agent with the spinning solution and then carrying out wet spinning;
the glass fiber comprises the following components in parts by weight: 50-60 parts of polyethylene powder, 15-20 parts of diethyl citrate, 1-5 parts of chopped fiber, 2-4 parts of ferric oxide, 30-35 parts of heavy metal compound, 2-6 parts of terephthalic acid, 1-5 parts of phosphorous acid, 1-3 parts of polyester chips, 2-4 parts of ethylene glycol, 1-3 parts of zinc oxide, 4-10 parts of barium titanate powder, 1-3 parts of coupling agent and 1-3 parts of dicumyl peroxide;
the high-strength polyester fiber comprises the following components in parts by weight: 50-60 parts of PET slices, 15-20 parts of flatting agent, 1-5 parts of graphene, 2-4 parts of ferric oxide, 25-35 parts of epoxy resin, 2-6 parts of terephthalic acid, 1-5 parts of phosphorous acid, 1-3 parts of pearl powder, 2-4 parts of ethylene glycol, 1-3 parts of ethylene glycol antimony, 4-8 parts of barium titanate powder, 1-3 parts of coupling agent and 1-3 parts of dicumyl peroxide;
(2) opening and cleaning: the four raw materials are subjected to blowing and mixing;
(3) carding cotton: adopting an FA224B type carding machine, wherein the rotating speed of a cylinder is 354 r/min, the rotating speed of a poking roller is 748 r/min, the surface linear speed ratio of the cylinder to the poking roller is 2.25, the cover plate speed is 130m/min, the spacing distance between the poking roller and the cylinder is 7 thousandths of an inch, and the spacing distance between the cylinder and a doffer is 5 thousandths of an inch;
(4) drawing: adopting an FA316 drawing frame provided with an auto-leveling device, adopting three drawing lines with 8 drawing lines, wherein the drawing multiple of the rear area of the three drawing lines is 1.87/1.84/1.34, the front/middle/rear of the roller gauge is 12 mm/8 mm/18mm, and the speed is 220 plus 240 m/min;
(5) roving: adopting an FA423 type roving frame, drafting by four rollers and double short aprons, wherein the roller center distance is 39 multiplied by 53 multiplied by 66mm, the roller pressurization is 15/25/20/20kg, and the jaw gauge is 6.5 mm;
(6) spinning: the spinning frame adopts an EJM271 type siro compact spinning frame, three rollers draw long and short rubber rings, the center distance of the rollers is 44 multiplied by 66mm, the jaw spacing is 2.5mm, and the spindle speed is 14000 and 16000 turns/min;
(7) spooling: preparing high-strength blended yarns;
(8) preparing a fire retardant: mixing the following components in parts by weight: 10-20 parts of ammonium dihydrogen phosphate, 3-5 parts of dimethyl phosphite, 5-8 parts of urea, 3-5 parts of acrylamide, 1-3 parts of ammonium chloride, 1-3 parts of ferric sulfate, 10-20 parts of sorbitan fatty acid ester, 2-4 parts of boric acid and 400 parts of 200-one water, mixing the components, putting the components into a high-pressure kettle, adjusting the pH value to 5-6 with hydrochloric acid, controlling the temperature to be 65-70 ℃, and placing the components in the high-pressure kettle for 40-50min to obtain the fire retardant;
(9) preparation of N-hexamethylol amino cyclotriphosphazene solution: mixing 35% by mass of formaldehyde and 93% by mass of methanol according to a weight ratio of 1:4-5, adjusting the pH value to 8.0-9.0 by using strong base, heating to 55 ℃, preserving heat, adding 3-5% of melamine, heating to 60 ℃, preserving heat for 3-4h, and then carrying out vacuum evaporation to remove volatile matters until 75 ℃ and no liquid is evaporated under the vacuum pressure of 93 Kpa;
(10) preparing fireproof yarns: and (3) mixing the fire retardant prepared in the step (8) and the N-hexamethylol amino cyclotriphosphazene solution prepared in the step (9) with water to obtain a mixed solution, uniformly spraying the mixed solution on the high-strength blended yarn or soaking the high-strength blended yarn in the mixed solution, and airing the blended yarn for 1.5-2 hours to obtain the high-strength fire-proof yarn.
In the spinning process of the high-strength fireproof yarn, preferably, the nano polyester fiber in the step (1) comprises the following components in parts by weight: 25 parts of polyester fiber, 13 parts of nano particles, 6 parts of compatibilizer, 0.35 part of surface treating agent, 0.5 part of nucleating agent, 1.6 parts of dispersing agent and 0.65 part of antioxidant.
In the spinning process of the high-strength fireproof yarn, the glass fiber in the step (1) preferably comprises the following components in parts by weight: 55 parts of polyethylene powder, 18 parts of diethyl citrate, 3 parts of chopped fibers, 3 parts of ferric oxide, 32 parts of heavy metal compounds, 4 parts of terephthalic acid, 3 parts of phosphorous acid, 2 parts of polyester chips, 3 parts of ethylene glycol, 2 parts of zinc oxide, 7 parts of barium titanate powder, 2 parts of coupling agent and 2 parts of dicumyl peroxide.
In the spinning process of the high-strength fireproof yarn, preferably, the high-strength polyester fiber in the step (1) comprises the following components in parts by weight: 56 parts of PET slices, 18 parts of flatting agent, 3 parts of graphene, 3 parts of ferric oxide, 30 parts of epoxy resin, 4 parts of terephthalic acid, 3 parts of phosphorous acid, 2 parts of pearl powder, 3 parts of ethylene glycol, 2 parts of ethylene glycol antimony, 6 parts of barium titanate powder, 2 parts of coupling agent and 2 parts of dicumyl peroxide.
In the spinning process of the high-strength fireproof yarn, the antibacterial fiber in the step (1) is preferably one of cotton, hemp, bamboo fiber, viscose fiber, cuprammonium cellulose fiber and ionic liquid spun cellulose fiber fabric.
In the spinning process of the high-strength fireproof yarn, preferably, in the step (8), the fireproof agent is prepared by mixing the following components in parts by weight: 15 parts of ammonium dihydrogen phosphate, 4 parts of dimethyl phosphite, 6.5 parts of urea, 4 parts of acrylamide, 2 parts of ammonium chloride, 2 parts of ferric sulfate, 16 parts of sorbitan fatty acid ester, 3 parts of boric acid and 280 parts of water.
In the spinning process of the high-strength fireproof yarn, the strong base in the step (9) is preferably a NaOH solution.
Compared with the prior art, the invention has the beneficial effects that: the blended yarn prepared by the spinning process integrates the respective advantages of the nano polyester fiber, the antibacterial fiber, the glass fiber and the high-strength polyester fiber, and has the excellent performances of antibiosis, deodorization, warm keeping, moisture keeping, good elasticity, corrosion resistance, high strength and long service life; meanwhile, the blended yarn is subjected to fireproof treatment, so that the flame retardant property of the yarn is improved, and the use safety of the yarn is improved.
Detailed Description
The embodiment of the invention comprises the following steps: a spinning process of high-strength fireproof yarns comprises the following steps:
(1) selecting raw materials: the blended yarn comprises the following raw materials in percentage by weight: 15-30% of nano polyester fiber, 10-20% of antibacterial fiber, 20-30% of glass fiber and 20-30% of high-strength polyester fiber;
the nano polyester fiber comprises the following components in parts by weight: 20-30 parts of polyester fiber, 10-15 parts of nano particles, 5-8 parts of compatibilizer, 0.2-0.5 part of surface treating agent, 0.3-0.8 part of nucleating agent, 1-2 parts of dispersing agent and 0.5-0.8 part of antioxidant;
the antibacterial fiber is prepared by the steps of carrying out dipping and squeezing, crushing, ageing, yellowing, continuous dissolving, filtering and defoaming treatment on pulp containing a raw material of cellulose fiber to obtain a spinning solution, and then preparing an antibacterial agent: firstly, uniformly mixing glucose, yeast extract, agar, peptone and deionized water, regulating the pH value to 5.0-6.0 by using citric acid, sterilizing at high temperature to obtain a fermentation culture medium, inoculating acetobacter xylinum into the fermentation culture medium according to the inoculation amount of 5-8% (V/V), culturing for 7-10 days in a constant-temperature incubator at 30-32 ℃, taking out a gelatinous product to obtain a bacterial cellulose hydrogel membrane, soaking the bacterial cellulose hydrogel membrane in a sodium hydroxide solution for multiple times, soaking and washing with deionized water until a washing solution is neutral to obtain a purified bacterial cellulose gel, adding silver nitrate and zinc nitrate into the deionized water, uniformly mixing, and dropwise adding a trisodium citrate solution with the mass fraction of 3% at a rate of 1-2mL/min to obtain a composite silver-zinc antibacterial agent; mixing the composite silver-zinc antibacterial agent with the spinning solution and then carrying out wet spinning;
the glass fiber comprises the following components in parts by weight: 50-60 parts of polyethylene powder, 15-20 parts of diethyl citrate, 1-5 parts of chopped fiber, 2-4 parts of ferric oxide, 30-35 parts of heavy metal compound, 2-6 parts of terephthalic acid, 1-5 parts of phosphorous acid, 1-3 parts of polyester chips, 2-4 parts of ethylene glycol, 1-3 parts of zinc oxide, 4-10 parts of barium titanate powder, 1-3 parts of coupling agent and 1-3 parts of dicumyl peroxide;
the high-strength polyester fiber comprises the following components in parts by weight: 50-60 parts of PET slices, 15-20 parts of flatting agent, 1-5 parts of graphene, 2-4 parts of ferric oxide, 25-35 parts of epoxy resin, 2-6 parts of terephthalic acid, 1-5 parts of phosphorous acid, 1-3 parts of pearl powder, 2-4 parts of ethylene glycol, 1-3 parts of ethylene glycol antimony, 4-8 parts of barium titanate powder, 1-3 parts of coupling agent and 1-3 parts of dicumyl peroxide;
(2) opening and cleaning: the four raw materials are subjected to blowing and mixing;
(3) carding cotton: adopting an FA224B type carding machine, wherein the rotating speed of a cylinder is 354 r/min, the rotating speed of a poking roller is 748 r/min, the surface linear speed ratio of the cylinder to the poking roller is 2.25, the cover plate speed is 130m/min, the spacing distance between the poking roller and the cylinder is 7 thousandths of an inch, and the spacing distance between the cylinder and a doffer is 5 thousandths of an inch;
(4) drawing: adopting an FA316 drawing frame provided with an auto-leveling device, adopting three drawing lines with 8 drawing lines, wherein the drawing multiple of the rear area of the three drawing lines is 1.87/1.84/1.34, the front/middle/rear of the roller gauge is 12 mm/8 mm/18mm, and the speed is 220 plus 240 m/min;
(5) roving: adopting an FA423 type roving frame, drafting by four rollers and double short aprons, wherein the roller center distance is 39 multiplied by 53 multiplied by 66mm, the roller pressurization is 15/25/20/20kg, and the jaw gauge is 6.5 mm;
(6) spinning: the spinning frame adopts an EJM271 type siro compact spinning frame, three rollers draw long and short rubber rings, the center distance of the rollers is 44 multiplied by 66mm, the jaw spacing is 2.5mm, and the spindle speed is 14000 and 16000 turns/min;
(7) spooling: preparing high-strength blended yarns;
(8) preparing a fire retardant: mixing the following components in parts by weight: 10-20 parts of ammonium dihydrogen phosphate, 3-5 parts of dimethyl phosphite, 5-8 parts of urea, 3-5 parts of acrylamide, 1-3 parts of ammonium chloride, 1-3 parts of ferric sulfate, 10-20 parts of sorbitan fatty acid ester, 2-4 parts of boric acid and 400 parts of 200-one water, mixing the components, putting the components into a high-pressure kettle, adjusting the pH value to 5-6 with hydrochloric acid, controlling the temperature to be 65-70 ℃, and placing the components in the high-pressure kettle for 40-50min to obtain the fire retardant;
(9) preparation of N-hexamethylol amino cyclotriphosphazene solution: mixing 35% by mass of formaldehyde and 93% by mass of methanol according to a weight ratio of 1:4-5, adjusting the pH value to 8.0-9.0 by using strong base, heating to 55 ℃, preserving heat, adding 3-5% of melamine, heating to 60 ℃, preserving heat for 3-4h, and then carrying out vacuum evaporation to remove volatile matters until 75 ℃ and no liquid is evaporated under the vacuum pressure of 93 Kpa;
(10) preparing fireproof yarns: and (3) mixing the fire retardant prepared in the step (8) and the N-hexamethylol amino cyclotriphosphazene solution prepared in the step (9) with water to obtain a mixed solution, uniformly spraying the mixed solution on the high-strength blended yarn or soaking the high-strength blended yarn in the mixed solution, and airing the blended yarn for 1.5-2 hours to obtain the high-strength fire-proof yarn.
The nanometer polyester fiber in the step (1) comprises the following components in parts by weight: 25 parts of polyester fiber, 13 parts of nano particles, 6 parts of compatibilizer, 0.35 part of surface treating agent, 0.5 part of nucleating agent, 1.6 parts of dispersing agent and 0.65 part of antioxidant.
The glass fiber in the step (1) comprises the following components in parts by weight: 55 parts of polyethylene powder, 18 parts of diethyl citrate, 3 parts of chopped fibers, 3 parts of ferric oxide, 32 parts of heavy metal compounds, 4 parts of terephthalic acid, 3 parts of phosphorous acid, 2 parts of polyester chips, 3 parts of ethylene glycol, 2 parts of zinc oxide, 7 parts of barium titanate powder, 2 parts of coupling agent and 2 parts of dicumyl peroxide.
The high-strength polyester fiber in the step (1) comprises the following components in parts by weight: 56 parts of PET slices, 18 parts of flatting agent, 3 parts of graphene, 3 parts of ferric oxide, 30 parts of epoxy resin, 4 parts of terephthalic acid, 3 parts of phosphorous acid, 2 parts of pearl powder, 3 parts of ethylene glycol, 2 parts of ethylene glycol antimony, 6 parts of barium titanate powder, 2 parts of coupling agent and 2 parts of dicumyl peroxide.
The antibacterial fiber in the step (1) is made of one of cotton, hemp, bamboo fiber, viscose fiber, cuprammonium cellulose fiber and ionic liquid spun cellulose fiber fabric.
In the step (8), the fire retardant is prepared by mixing the following components in parts by weight: 15 parts of ammonium dihydrogen phosphate, 4 parts of dimethyl phosphite, 6.5 parts of urea, 4 parts of acrylamide, 2 parts of ammonium chloride, 2 parts of ferric sulfate, 16 parts of sorbitan fatty acid ester, 3 parts of boric acid and 280 parts of water.
And (4) in the step (9), the strong base is NaOH solution.
Claims (7)
1. A spinning process of high-strength fireproof yarns is characterized by comprising the following steps: the method comprises the following steps:
(1) selecting raw materials: the blended yarn comprises the following raw materials in percentage by weight: 15-30% of nano polyester fiber, 10-20% of antibacterial fiber, 20-30% of glass fiber and 20-30% of high-strength polyester fiber;
the nano polyester fiber comprises the following components in parts by weight: 20-30 parts of polyester fiber, 10-15 parts of nano particles, 5-8 parts of compatibilizer, 0.2-0.5 part of surface treating agent, 0.3-0.8 part of nucleating agent, 1-2 parts of dispersing agent and 0.5-0.8 part of antioxidant;
the antibacterial fiber is prepared by the steps of carrying out dipping and squeezing, crushing, ageing, yellowing, continuous dissolving, filtering and defoaming treatment on pulp containing a raw material of cellulose fiber to obtain a spinning solution, and then preparing an antibacterial agent: firstly, uniformly mixing glucose, yeast extract, agar, peptone and deionized water, regulating the pH value to 5.0-6.0 by using citric acid, sterilizing at high temperature to obtain a fermentation culture medium, inoculating acetobacter xylinum into the fermentation culture medium according to the inoculation amount of 5-8% (V/V), culturing for 7-10 days in a constant-temperature incubator at 30-32 ℃, taking out a gelatinous product to obtain a bacterial cellulose hydrogel membrane, soaking the bacterial cellulose hydrogel membrane in a sodium hydroxide solution for multiple times, soaking and washing with deionized water until a washing solution is neutral to obtain a purified bacterial cellulose gel, adding silver nitrate and zinc nitrate into the deionized water, uniformly mixing, and dropwise adding a trisodium citrate solution with the mass fraction of 3% at a rate of 1-2mL/min to obtain a composite silver-zinc antibacterial agent; mixing the composite silver-zinc antibacterial agent with the spinning solution and then carrying out wet spinning;
the glass fiber comprises the following components in parts by weight: 50-60 parts of polyethylene powder, 15-20 parts of diethyl citrate, 1-5 parts of chopped fiber, 2-4 parts of ferric oxide, 30-35 parts of heavy metal compound, 2-6 parts of terephthalic acid, 1-5 parts of phosphorous acid, 1-3 parts of polyester chips, 2-4 parts of ethylene glycol, 1-3 parts of zinc oxide, 4-10 parts of barium titanate powder, 1-3 parts of coupling agent and 1-3 parts of dicumyl peroxide;
the high-strength polyester fiber comprises the following components in parts by weight: 50-60 parts of PET slices, 15-20 parts of flatting agent, 1-5 parts of graphene, 2-4 parts of ferric oxide, 25-35 parts of epoxy resin, 2-6 parts of terephthalic acid, 1-5 parts of phosphorous acid, 1-3 parts of pearl powder, 2-4 parts of ethylene glycol, 1-3 parts of ethylene glycol antimony, 4-8 parts of barium titanate powder, 1-3 parts of coupling agent and 1-3 parts of dicumyl peroxide;
(2) opening and cleaning: the four raw materials are subjected to blowing and mixing;
(3) carding cotton: adopting an FA224B type carding machine, wherein the rotating speed of a cylinder is 354 r/min, the rotating speed of a poking roller is 748 r/min, the surface linear speed ratio of the cylinder to the poking roller is 2.25, the cover plate speed is 130m/min, the spacing distance between the poking roller and the cylinder is 7 thousandths of an inch, and the spacing distance between the cylinder and a doffer is 5 thousandths of an inch;
(4) drawing: adopting an FA316 drawing frame provided with an auto-leveling device, adopting three drawing lines with 8 drawing lines, wherein the drawing multiple of the rear area of the three drawing lines is 1.87/1.84/1.34, the front/middle/rear of the roller gauge is 12 mm/8 mm/18mm, and the speed is 220 plus 240 m/min;
(5) roving: adopting an FA423 type roving frame, drafting by four rollers and double short aprons, wherein the roller center distance is 39 multiplied by 53 multiplied by 66mm, the roller pressurization is 15/25/20/20kg, and the jaw gauge is 6.5 mm;
(6) spinning: the spinning frame adopts an EJM271 type siro compact spinning frame, three rollers draw long and short rubber rings, the center distance of the rollers is 44 multiplied by 66mm, the jaw spacing is 2.5mm, and the spindle speed is 14000 and 16000 turns/min;
(7) spooling: preparing high-strength blended yarns;
(8) preparing a fire retardant: mixing the following components in parts by weight: 10-20 parts of ammonium dihydrogen phosphate, 3-5 parts of dimethyl phosphite, 5-8 parts of urea, 3-5 parts of acrylamide, 1-3 parts of ammonium chloride, 1-3 parts of ferric sulfate, 10-20 parts of sorbitan fatty acid ester, 2-4 parts of boric acid and 400 parts of 200-one water, mixing the components, putting the components into a high-pressure kettle, adjusting the pH value to 5-6 with hydrochloric acid, controlling the temperature to be 65-70 ℃, and placing the components in the high-pressure kettle for 40-50min to obtain the fire retardant;
(9) preparation of N-hexamethylol amino cyclotriphosphazene solution: mixing 35% by mass of formaldehyde and 93% by mass of methanol according to a weight ratio of 1:4-5, adjusting the pH value to 8.0-9.0 by using strong base, heating to 55 ℃, preserving heat, adding 3-5% of melamine, heating to 60 ℃, preserving heat for 3-4h, and then carrying out vacuum evaporation to remove volatile matters until 75 ℃ and no liquid is evaporated under the vacuum pressure of 93 Kpa;
(10) preparing fireproof yarns: and (3) mixing the fire retardant prepared in the step (8) and the N-hexamethylol amino cyclotriphosphazene solution prepared in the step (9) with water to obtain a mixed solution, uniformly spraying the mixed solution on the high-strength blended yarn or soaking the high-strength blended yarn in the mixed solution, and airing the blended yarn for 1.5-2 hours to obtain the high-strength fire-proof yarn.
2. A spinning process of a high strength flameproof yarn according to claim 1, characterized in that: the nanometer polyester fiber in the step (1) comprises the following components in parts by weight: 25 parts of polyester fiber, 13 parts of nano particles, 6 parts of compatibilizer, 0.35 part of surface treating agent, 0.5 part of nucleating agent, 1.6 parts of dispersing agent and 0.65 part of antioxidant.
3. A spinning process of a high strength flameproof yarn according to claim 1, characterized in that: the glass fiber in the step (1) comprises the following components in parts by weight: 55 parts of polyethylene powder, 18 parts of diethyl citrate, 3 parts of chopped fibers, 3 parts of ferric oxide, 32 parts of heavy metal compounds, 4 parts of terephthalic acid, 3 parts of phosphorous acid, 2 parts of polyester chips, 3 parts of ethylene glycol, 2 parts of zinc oxide, 7 parts of barium titanate powder, 2 parts of coupling agent and 2 parts of dicumyl peroxide.
4. A spinning process of a high strength flameproof yarn according to claim 1, characterized in that: the high-strength polyester fiber in the step (1) comprises the following components in parts by weight: 56 parts of PET slices, 18 parts of flatting agent, 3 parts of graphene, 3 parts of ferric oxide, 30 parts of epoxy resin, 4 parts of terephthalic acid, 3 parts of phosphorous acid, 2 parts of pearl powder, 3 parts of ethylene glycol, 2 parts of ethylene glycol antimony, 6 parts of barium titanate powder, 2 parts of coupling agent and 2 parts of dicumyl peroxide.
5. A spinning process of a high strength flameproof yarn according to claim 1, characterized in that: the antibacterial fiber in the step (1) is made of one of cotton, hemp, bamboo fiber, viscose fiber, cuprammonium cellulose fiber and ionic liquid spun cellulose fiber fabric.
6. A spinning process of a high strength flameproof yarn according to claim 1, characterized in that: in the step (8), the fire retardant is prepared by mixing the following components in parts by weight: 15 parts of ammonium dihydrogen phosphate, 4 parts of dimethyl phosphite, 6.5 parts of urea, 4 parts of acrylamide, 2 parts of ammonium chloride, 2 parts of ferric sulfate, 16 parts of sorbitan fatty acid ester, 3 parts of boric acid and 280 parts of water.
7. A spinning process of a high strength flameproof yarn according to claim 1, characterized in that: and (4) in the step (9), the strong base is NaOH solution.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481760A (en) * | 2020-10-27 | 2021-03-12 | 南通明富纺织品有限公司 | Antibacterial and antifouling organic cotton and kapok blended yarn and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481760A (en) * | 2020-10-27 | 2021-03-12 | 南通明富纺织品有限公司 | Antibacterial and antifouling organic cotton and kapok blended yarn and preparation method thereof |
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