CN109629060B - High-strength flame-retardant anti-dripping wear-resistant anti-static blending wrapping core-spun yarn and preparation method thereof - Google Patents
High-strength flame-retardant anti-dripping wear-resistant anti-static blending wrapping core-spun yarn and preparation method thereof Download PDFInfo
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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
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
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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
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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
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
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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
- D02G3/442—Cut or abrasion resistant 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
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
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- 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
- D06M10/02—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 ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
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- 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
- 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
- D06M2101/34—Polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- 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
- D10B2201/24—Viscose
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
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- Textile Engineering (AREA)
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- Physics & Mathematics (AREA)
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- Woven Fabrics (AREA)
Abstract
The invention discloses a high-strength flame-retardant anti-dripping wear-resistant anti-static blending wrapped core-spun yarn and a preparation method thereof. The preparation method comprises the following steps: mixing aramid fiber, flame-retardant viscose fiber and antistatic fiber, and then sequentially carding, drawing and roving to obtain roving; and winding the rough yarn on the outer layer by taking the non-flame-retardant nylon filament as a core to spin a spun yarn, and then spooling to obtain the blended, wrapped and core-spun yarn. The flame-retardant and anti-dripping fabric is prepared by taking aramid fibers, flame-retardant viscose fibers, flame-retardant nylon filaments, high-strength non-flame-retardant nylon filaments and conductive fibers as main components through a blending spinning and weaving process, has the advantages of flame retardance, anti-dripping property, high strength, easiness in dyeing, static resistance, wear resistance, low cost, simple working procedures, excellent yarn quality and the like, can be used for meeting the requirements of special combat aspects, and can also meet the requirements of other frock clothes and the like.
Description
Technical Field
The invention relates to a high-strength flame-retardant anti-dripping wear-resistant anti-static blending wrapped core-spun yarn and a preparation method thereof, belonging to the field of textiles.
Background
In the flame-retardant clothes, aramid fibers are mostly adopted as main materials, are high-performance fibers which are mature in the prior art, have chemical names of poly (m-phenylene isophthalamide) (commonly known as aramid 1313) and poly (p-phenylene terephthalamide) (commonly known as aramid 1414), have good high temperature resistance and flame retardance, but have high vitrification temperature, difficult dyeing and poor water absorption, so that aramid fabrics are difficult to have high-quality colors and difficult to be subjected to camouflage printing, and cannot meet the camouflage requirement of troops on camouflage; the static problem is also prominent, and the antistatic agent can not be used in occasions with high requirements on antistatic performance, such as gunpowder processing plants, inflammable powder processing plants and the like.
Aramid fibers are usually adopted in the combat fabric, the dosage ratio of the aramid fibers in the combat fabric of several generations before the American army accounts for more than 50%, and the problems of difficult camouflage printing, low strength, poor comfort and the like of the whole combat fabric are caused due to the difficulty in dyeing the aramid fibers. The latest generation of flame-retardant combat fabric of the America army is formed by blending three fibers of aramid fiber 1414, flame-retardant viscose and high-strength nylon 66 (25: 65; 10), and has the advantages of flame retardance, melt-drip resistance, better camouflage printing property, proper wear resistance and comfort; but still has the problems of poor durability, low strength, high price and the like, and the problem of poor hand feeling still exists because the 25 percent aramid 1414 fiber ensures that the fabric must be printed by a part of coating. How to further reduce the content of high-performance fibers under the condition of keeping the performance, and further improve the comfort, the camouflage printing performance and the like of the fabric is a research problem.
Disclosure of Invention
The invention aims to provide the high-strength flame-retardant anti-dripping wear-resistant anti-static blending wrapped core-spun yarn and the preparation method thereof, the flame-retardant nylon filament adopted by the invention needs anti-dripping treatment, and the core of the blending wrapped core-spun yarn adopts the high-strength non-flame-retardant nylon filament, so that the high-strength performance of the yarn is ensured; and the outer layer is wrapped by adopting flame-retardant anti-dripping nylon filaments, so that the strength of the yarn is further improved, and the wear resistance of the whole yarn is also improved. The blended and wrapped core-spun yarn has the advantages of flame retardance, anti-dripping property, high strength, easiness in dyeing, static resistance, wear resistance, low cost, simple process, excellent yarn quality and the like, is particularly suitable for the requirements of special combat, and can meet the requirements of other frock clothes and the like.
The preparation method of the high-strength flame-retardant anti-dripping, wear-resistant and anti-static blended wrapped core-spun yarn provided by the invention comprises the following steps:
mixing aramid fiber, flame-retardant viscose fiber and antistatic fiber, and then sequentially carding, drawing and roving to obtain roving;
and winding the rough yarn on the outer layer by taking the non-flame-retardant nylon filament as a core to spin a spun yarn, and then spooling to obtain the blended, wrapped and core-spun yarn.
In the preparation method, the raw materials are as follows by mass percent:
15-17% of aramid fiber, 20-25% of flame-retardant nylon filament, 8-10% of non-flame-retardant nylon filament, 2-3% of antistatic fiber and 45-55% of flame-retardant viscose fiber; specifically, any one of the following may be used:
1) 15-16.5% of aramid fiber, 20-22% of flame-retardant nylon filament, 8-9% of non-flame-retardant nylon filament, 2-2.5% of antistatic fiber and 45-50% of flame-retardant viscose fiber;
2) 16.5-17% of aramid fiber, 22-25% of flame-retardant nylon filament, 9-10% of non-flame-retardant nylon filament, 2.5-3% of antistatic fiber and 50-55% of flame-retardant viscose fiber;
3) 16% of aramid fiber, 25% of flame-retardant nylon filament, 8% of non-flame-retardant nylon filament, 3% of antistatic fiber and 48% of flame-retardant viscose fiber;
4) 15% of aramid fiber, 20% of flame-retardant nylon filament, 8% of non-flame-retardant nylon filament, 2% of antistatic fiber and 55% of flame-retardant viscose fiber;
5) 16.5% of aramid fiber, 22% of flame-retardant nylon filament, 9% of non-flame-retardant nylon filament, 2.5% of antistatic fiber and 50% of flame-retardant viscose fiber;
6) 17% of aramid fiber, 25% of flame-retardant nylon filament, 10% of non-flame-retardant nylon filament, 3% of antistatic fiber and 45% of flame-retardant viscose fiber.
In the preparation method, the aramid fiber is aramid fiber 1414 or a mixed fiber of aramid fiber 1313 and aramid fiber 1414;
in the mixed fiber, the mass content of the aramid fiber 1414 is not less than 60%.
In the above preparation method, the flame-retardant viscose fiber is selected from conventional viscose fibers with flame-retardant performance.
In the above preparation method, the antistatic fiber may be an organic conductive fiber.
In the preparation method, the flame-retardant nylon filament is a flame-retardant nylon 66 filament or a flame-retardant nylon 6 filament;
the strength of the flame-retardant nylon filament is 3.5-5 cN/dtex;
the phosphorus content in the flame-retardant nylon filament is 4000-6000 ppm;
the non-flame-retardant nylon filament is a non-flame-retardant nylon 66 filament or a non-flame-retardant nylon 6 filament;
the strength of the non-flame-retardant nylon filament is 7-8 cN/dtex.
In the preparation method, the flame-retardant nylon filament is subjected to electron beam irradiation anti-molten drop treatment;
the electron beam irradiation anti-dripping treatment comprises the following steps:
padding the flame-retardant nylon filament in an ethanol solution containing a compound with at least three functional groups, performing electron beam irradiation, and carding to form strips;
the compound containing at least three functional groups can be any one of glycerol, pentaerythritol, triethanolamine, trimethylolpropane, dipropylene glycol, xylitol and sorbitol;
the padding treatment temperature is 55-90 ℃;
the liquid carrying capacity of the flame-retardant nylon filament after padding treatment is 50-200%;
and carrying out grafting crosslinking reaction by electron beam irradiation, wherein the dose of the electron beam irradiation is 100-400 kGy.
In the above preparation method, the carding conditions are as follows:
the strip discharging speed is 550-650 m/min, and the strip discharging weight is 5-7 g/m;
the drawing comprises primary drawing, secondary drawing and tertiary drawing which are sequentially carried out;
the drawing conditions were as follows:
the strip discharging speed is 200-250 m/min, and the strip discharging weight is 5-7 g/m.
In the preparation method, the conditions of the roving are as follows:
the draft multiple of the finishing zone is controlled to be 1.15-1.2, the rear draft multiple is controlled to be 1.2-1.3, the draft multiple of the main zone is controlled to be 6-7, the total draft multiple is 8-9, and the roving with the twist of 60-70 t/m is spun.
In the above production method, the conditions of the spun yarn are as follows:
the draft multiple of the finishing zone is controlled to be 1.2-1.3, the rear draft multiple is controlled to be 1.5-1.6, the draft multiple of the main zone is controlled to be 10-12, the total draft multiple is 20-25, spun yarn with twist of 80-90 t/m is spun, and the spun yarn count is 26/2-32/2S.
The core-spun yarn prepared by the method is woven to obtain the high-strength flame-retardant anti-dripping anti-static fabric; the high strength means that the fabric has higher strength, and particularly has high strength while meeting the requirements of flame retardance, melt drip resistance, easy dyeing, static resistance and wear resistance.
The flame-retardant and anti-dripping fabric is prepared by taking aramid fibers, flame-retardant viscose fibers, flame-retardant nylon filaments, high-strength non-flame-retardant nylon filaments and conductive fibers as main components through a blending spinning and weaving process, has the advantages of flame retardance, anti-dripping property, high strength, easiness in dyeing, static resistance, wear resistance, low cost, simple working procedures, excellent yarn quality and the like, can be used for meeting the requirements of special combat aspects, and can also meet the requirements of other frock clothes and the like.
Detailed Description
The experimental procedures used in the following examples are all conventional procedures unless otherwise specified.
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
The percentages in the following examples are by mass.
Example 1 preparation of high-strength flame-retardant anti-dripping anti-static fabric 1
1) Uniformly mixing 15% of aramid fiber (wherein the aramid fiber 1414 accounts for 60%), 55% of flame-retardant viscose fiber (FR fiber provided by Orlandine) and 2% of organic conductive fiber (conductive fiber provided by Japanese Zhongjing), and carding, drawing, secondary drawing, tertiary drawing and roving the uniformly mixed fiber for later use; wherein, the sliver discharging speed during carding is 550m/min, and the sliver discharging weight is 7 g/m; the drawing speed of drawing is 250m/min, and the drawing weight is 5 g/m.
2) Molten drop prevention treatment: padding the flame-retardant nylon filament into a glycerol solution, wherein the treatment temperature of padding liquid is 90 ℃, and the liquid carrying capacity of the flame-retardant fiber after padding treatment is 50%; carrying out electron beam irradiation grafting crosslinking reaction with the electron beam irradiation dose of 100kGy, washing, and finally carding into strips for later use.
3) Spinning spun yarns in a second step: taking the high-strength non-flame-retardant nylon 6 filament with the strength of 7cN/dtex and the weight of 8 percent as a core; and winding the flame-retardant anti-dripping nylon 66 filament with the phosphorus content of 4000ppm, the strength of 5cN/dtex and the weight of 20 percent on the outer layer to spin required spun yarn, and then performing a spooling process to obtain the blended core-spun wrapped yarn. The draft multiple of a finishing zone of the roving frame is controlled to be 1.15, the draft multiple of a rear zone is controlled to be 1.3, the draft multiple of a main zone is controlled to be 7, the total draft multiple is 9, and the roving with the twist of 70t/m is spun; the draft multiple of the finishing zone of the spinning machine is controlled to be 1.2, the draft multiple of the rear zone is controlled to be 1.6, the draft multiple of the main zone is controlled to be 12, the total draft multiple is 25, spun yarn with twist of 90t/m is spun, the yarn count of the spun yarn is 32/2S, and then the fabric 1 is obtained through weaving.
Example 2 preparation of high-strength flame-retardant anti-dripping anti-static fabric 2
1) Uniformly mixing 17% of aramid fiber (wherein the proportion of the aramid fiber 1414 is 80%), 45% of flame-retardant viscose fiber (FR fiber provided by Orlandine) and 3% of organic conductive fiber (conductive fiber provided by Japanese Zhongjing company), and carrying out carding, drawing, secondary drawing, tertiary drawing and roving for later use; wherein, the sliver discharging speed during carding is 650m/min, and the sliver discharging weight is 5 g/m; the drawing speed of drawing is 200m/min, and the drawing weight is 7 g/m.
2) Molten drop prevention treatment: padding the flame-retardant nylon filament into a pentaerythritol solution, wherein the treatment temperature of padding liquid is 55 ℃, and the liquid carrying amount of the flame-retardant fiber after padding treatment is 200%; carrying out electron beam irradiation grafting crosslinking reaction with the electron beam irradiation dose of 400kGy, washing, and finally carding into strips for later use.
3) Spinning spun yarns in a second step: taking the high-strength non-flame-retardant nylon 66 filament with the strength of 8cN/dtex and the weight of 10 percent as a core of the spun roving; and winding the flame-retardant anti-dripping nylon 6 filament with the phosphorus content of 6000PPM, the strength of 3.5cN/dtex and the weight of 25 percent on the outer layer to spin required spun yarn, and then performing the winding process to obtain the blended core-spun and wrapped yarn. The draft multiple of a finishing zone of the roving frame is controlled to be 1.2, the draft multiple of a rear zone is controlled to be 1.2, the draft multiple of a main zone is controlled to be 6, the total draft multiple is 8, and the roving with the twist of 60t/m is spun; the draft multiple of the finishing zone of the spinning machine is controlled to be 1.3, the draft multiple of the rear zone is controlled to be 1.5, the draft multiple of the main zone is controlled to be 10, the total draft multiple is 20, spun yarn with twist of 80t/m is spun, the yarn count of the spun yarn is 28/2S, and then the fabric 2 is obtained through weaving.
Example 3 preparation of high-strength flame-retardant anti-dripping anti-static fabric 3
1) Uniformly mixing 16.5% of aramid fiber (wherein the aramid 1414 fiber is 100%), 50% of flame-retardant viscose fiber (FR fiber provided by Austria lanjing) and 2.5% of organic conductive fiber (conductive fiber provided by Japanese Zhongjing company), and carrying out carding, drawing, secondary drawing, tertiary drawing and roving for later use; wherein, the sliver discharging speed during carding is 600m/min, and the sliver discharging weight is 6 g/m; the drawing speed of drawing was 230m/min and the drawing weight was 6 g/m.
2) Molten drop prevention treatment: padding the flame-retardant nylon filament into a dipropylene glycol solution, wherein the treatment temperature of padding liquid is 70 ℃, and the liquid carrying amount of the flame-retardant fiber after padding treatment is 100%; carrying out electron beam irradiation grafting crosslinking reaction with the electron beam irradiation dose of 300kGy, washing, and finally carding into strips for later use.
3) Spinning spun yarns in a second step: taking the high-strength non-flame-retardant nylon 6 filament with the strength of 7.5cN/dtex and the weight of 9 percent as a core for the well-woven roving; and winding the flame-retardant anti-dripping nylon 6 filament with the phosphorus content of 4500PPM, the strength of 4cN/dtex and the weight of 22 percent on the outer layer to spin required spun yarn, and then performing the winding process to obtain the blended core-spun and wrapped yarn. Wherein the draft multiple of the finishing zone of the roving frame is controlled to be 1.17, the rear draft multiple is controlled to be 1.25, the draft multiple of the main zone is controlled to be 6.5, the total draft multiple is 8.5, and the roving with the twist of 65t/m is spun; the draft multiple of the finishing zone of the spinning frame is controlled to be 1.25, the draft multiple of the rear zone is controlled to be 1.55, the draft multiple of the main zone is controlled to be 11, the total draft multiple is 22, spun yarn with twist of 85t/m is spun, the yarn count of the spun yarn finally is 30/2S, and then the fabric 3 is woven.
Example 4 preparation of high-strength flame-retardant anti-dripping anti-static fabric 4
1) Uniformly mixing 16% of aramid fiber (wherein the aramid 1414 fiber is 90%), 48% of flame-retardant viscose fiber (FR fiber provided by Orlandine) and 3% of organic conductive fiber (conductive fiber provided by Japanese Zhongmian), and performing carding, drawing, secondary drawing, tertiary drawing and roving for later use; wherein, the sliver discharging speed during carding is 600m/min, and the sliver discharging weight is 6 g/m; the drawing speed of drawing was 230m/min and the drawing weight was 6 g/m.
2) Molten drop prevention treatment: padding the flame-retardant nylon filament into a trimethylolpropane solution, wherein the treatment temperature of padding liquid is 80 ℃, and the liquid carrying amount of the flame-retardant fiber after padding treatment is 150%; carrying out electron beam irradiation grafting crosslinking reaction with the electron beam irradiation dose of 400kGy, washing, and finally carding into strips for later use.
3) Spinning spun yarns in a second step: taking the high-strength non-flame-retardant nylon 66 filament with the strength of 7.5cN/dtex and the weight of 8 percent as a core of the spun roving; winding the flame-retardant anti-dripping nylon 66 filament with the phosphorus content of 5500PPM, the strength of 4cN/dtex and the weight of 25 percent on the outer layer, spinning out required spun yarn, and then performing the winding process to obtain the blended core-spun wrapped yarn. Wherein the draft multiple of the finishing zone of the roving frame is controlled to be 1.17, the rear draft multiple is controlled to be 1.25, the draft multiple of the main zone is controlled to be 6.5, the total draft multiple is 8.5, and the roving with the twist of 65t/m is spun; the draft multiple of the finishing zone of the spinning frame is controlled to be 1.25, the draft multiple of the rear zone is controlled to be 1.55, the draft multiple of the main zone is controlled to be 11, the total draft multiple is 22, spun yarn with twist of 85t/m is spun, the yarn count of the spun yarn finally is 26/2S, and then the fabric 4 is obtained through weaving.
The performance index of the wrapped core-spun yarn prepared in examples 1 to 4 of the present invention is shown in table 1.
As can be seen from the data in Table 1, the yarn prepared by the invention has high strength, good evenness, less hairiness and good resultant yarn quality.
TABLE 1 Performance index of core-spun fasciated yarn
The performance indexes of the fabrics prepared in examples 1-4 of the present invention are shown in table 2.
As can be seen from the data in the table 2, the damage length of the fabric is below 81mm, the smoldering time is below 1 second, and the fabric has very good flame retardant property; the state after combustion is direct carbonization, and the molten drop resistance is proved to be very good; the strength of the fabric is greater than 1510N in the warp direction, greater than 1030N in the weft direction, greater than 120 in both trapezoidal tear, and very high strength is shown; the dyeing fastness is over 4 grade, and the dyeing effect is very good; the charge surface density of the fabric is less than 2 mu C/square meter, the fabric has very good antistatic performance, the flat-grinding resistance times are more than 4250, and the fabric has very good wear resistance. In conclusion, the fabric prepared by the invention has excellent performances of flame retardance, anti-dripping, high strength, easiness in dyeing, wear resistance, antistatic property and the like.
Table 2 fabric performance testing
Claims (6)
1. A preparation method of a high-strength flame-retardant anti-dripping, wear-resistant and anti-static blended wrapped core-spun yarn comprises the following steps:
mixing aramid fiber, flame-retardant viscose fiber and antistatic fiber, and then sequentially carding, drawing and roving to obtain roving;
winding the rough yarn on the outer layer by taking the non-flame-retardant nylon filament as a core, spinning a spun yarn, and spooling to obtain the blended wrapped core-spun yarn;
the mass percentage of each raw material is as follows:
15-17% of aramid fiber, 20-25% of flame-retardant nylon filament, 8-10% of non-flame-retardant nylon filament, 2-3% of antistatic fiber and 45-55% of flame-retardant viscose fiber;
the aramid fiber is aramid fiber 1414 or a mixed fiber of aramid fiber 1313 and aramid fiber 1414;
in the mixed fiber, the mass content of the aramid fiber 1414 is not less than 60%;
the flame-retardant nylon filament is a flame-retardant nylon 66 filament or a flame-retardant nylon 6 filament;
the strength of the flame-retardant nylon filament is 3.5-5 cN/dtex;
the phosphorus content in the flame-retardant nylon filament is 4000-6000 ppm;
the non-flame-retardant nylon filament is a non-flame-retardant nylon 66 filament or a non-flame-retardant nylon 6 filament;
the strength of the non-flame-retardant nylon filament is 7-8 cN/dtex;
the flame-retardant nylon filament is subjected to electron beam irradiation anti-molten drop treatment;
the electron beam irradiation anti-dripping treatment comprises the following steps:
and padding the flame-retardant nylon filament in a solution containing a compound with at least three functional groups, performing electron beam irradiation, and carding to form strips.
2. The method of claim 1, wherein: the carding conditions were as follows:
the strip discharging speed is 550-650 m/min, and the strip discharging weight is 5-7 g/m;
the drawing comprises primary drawing, secondary drawing and tertiary drawing which are sequentially carried out;
the drawing conditions were as follows:
the strip discharging speed is 200-250 m/min, and the strip discharging weight is 5-7 g/m.
3. The production method according to claim 1 or 2, characterized in that: the conditions of the roving were as follows:
the draft multiple of the finishing zone is controlled to be 1.15-1.2, the rear draft multiple is controlled to be 1.2-1.3, the draft multiple of the main zone is controlled to be 6-7, the total draft multiple is 8-9, and the roving with the twist of 60-70 t/m is spun.
4. The production method according to claim 3, characterized in that: the conditions of the spun yarn were as follows:
the draft multiple of the finishing zone is controlled to be 1.2-1.3, the rear draft multiple is controlled to be 1.5-1.6, the draft multiple of the main zone is controlled to be 10-12, the total draft multiple is 20-25, spun yarn with twist of 80-90 t/m is spun, and the spun yarn count is 26/2-32/2S.
5. A blended wrapped core-spun yarn prepared by the process of any one of claims 1 to 4.
6. A high-strength flame-retardant anti-melt-drip antistatic fabric which is woven by the blended wrapped core-spun yarn of claim 5.
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| CN113040454A (en) * | 2019-12-27 | 2021-06-29 | 北京赛欧兰阻燃纤维有限公司 | Military uniform fabric |
| CN112708980B (en) * | 2020-12-31 | 2022-02-25 | 福建经纬新纤科技实业有限公司 | Flame-retardant and anti-dripping medium-high density fiber |
| CN114517352A (en) * | 2021-12-31 | 2022-05-20 | 浙江多元纺织科技(集团)有限公司 | Method for manufacturing multi-component blended flame-retardant oil-proof camouflage fabric |
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