CN103451797B - Aramid fiber and ultra-high molecular weight polyethylene blended yarn and production method thereof - Google Patents
Aramid fiber and ultra-high molecular weight polyethylene blended yarn and production method thereof Download PDFInfo
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Abstract
The invention discloses a kind of aramid fiber and ultra-high molecular weight polyethylene blended yarn and production method thereof, aramid fiber and ultra-high molecular weight polyethylene blended yarn, comprise the component of following percentage by weight: aramid fiber 20-85%, superhigh molecular weight polyethylene fibers 5-15%, fire resistance fibre 0-70%, conductive fiber 1-5%.The present invention is mixed into a certain proportion of conductive fiber, and carries out preliminary treatment to raw material before spinning, adds antistatic additive and leaves standstill minimum 8 hours and carry out health process.And in process, the process conditions of strict each operation of control, and control comb and parallel cotton fibers prior to spinning, drafting, the temperature of rove and spinning process and relative humidity, well solve aramid fiber, the electrostatic serious problems of superhigh molecular weight polyethylene fibers when spinning, overcome the strong rigidity of aramid fiber, ensure that yarn qualities.
Description
Technical field
The present invention relates to a kind of blended yarn and production method thereof.
Background technology
At present, aramid fiber on the market and aramid fiber blended yarn, usually with 100% aramid fiber for material, or carry out blending with the other materials such as aramid fiber and anti-flaming viscose, use the fabric that this yarn production goes out, powerful high, excellent fireproof performance, but also there is following shortcoming: 1, the anti-fluffing and anti-pilling performance of fabric is poor, clothes in use easily produce ball top, and ball top not easy-clear; 2, the anti-wear performance of fabric is excellent not.
Summary of the invention
The object of this invention is to provide a kind of aramid fiber and ultra-high molecular weight polyethylene blended yarn and production method thereof, to overcome the above-mentioned defect that prior art exists.
Described aramid fiber and ultra-high molecular weight polyethylene blended yarn, comprise the component of following percentage by weight:
Preferably, described aramid fiber and ultra-high molecular weight polyethylene blended yarn, comprise the component of following percentage by weight:
The percentage sum of each component is 100%
Described aramid fiber is aromatic hydrocarbon polyamide fiber, can be p-aramid fiber also can be meta-aramid, as Nomex, Kevlar etc. of Du Pont;
Described superhigh molecular weight polyethylene fibers (English full name: UltraHighMolecularWeightPolyethyleneFiber, be called for short UHMWPE), also known as high-strength high-modulus polyethylene fiber, it is the fiber that current specific strength in the world and specific modulus are the highest, its molecular weight 1,000,000 ~ 5,000,000 the spun fiber of polyethylene, as Yizheng Chemical Fiber Co., Ltd., SINOPEC produce superhigh molecular weight polyethylene fibers.
The fiber that described fire resistance fibre is anti-flaming viscose, fire-retardant Vinyon N or wool etc. have anti-flammability;
Wherein:
Anti-flaming viscose is the viscose of a kind of phosphonium flame retardant or silicon fire retardant, can adopt the product of Jilin chemical fibre Co., Ltd;
The nitrilon modified fiber of a kind of phosphonium flame retardant of fire-retardant Vinyon N, can adopt the Protex product of Japanese Ka Naikalong company;
Nylon or the polyster fibre of described conductive fiber to be inner core be graphitic carbon, can adopt commercially produced product, if E.I.Du Pont Company's trade mark is the product of P140;
Preferably, described aramid fiber and ultra-high molecular weight polyethylene blended yarn wire size number are 9.7 ~ 37tex;
Preferably, also comprise auxiliary agent, the weight consumption of auxiliary agent is 1.5 ~ 3% of aramid fiber, superhigh molecular weight polyethylene fibers, fire resistance fibre and conductive fiber gross weight; Auxiliary agent is antistatic additive.
Described antistatic additive is a kind of surfactant of soluble in water or other solvents, as the TS-YK3 type antistatic additive that Dongguan City Tian Sheng Chemical Industry Science Co., Ltd produces.
The preparation method of described aramid fiber and ultra-high molecular weight polyethylene blended yarn, comprises as follows successively:
(1) pretreatment of raw material: by antistat spray on raw material surface, leave standstill more than 8 hours, to ensure that antistatic additive can fully permeate evenly.
(2) mixed cotton step: pretreated raw material is sent into cotton blender machine, and by each fibers mixture, described cotton blender machine can adopt general equipment;
(3) shredding: mixed for step (2) fiber is sent into opener, shredding and removal of impurities are carried out to raw material;
Design parameter is as follows: the Beater Speed of opener is configured to 450 ~ 600r/min;
Dirt rod spacer: import group 11-15mm, middle two groups of 6-10mm, export one group of 4-7mm;
Hired roughneck with give face roller spacer 8-11mm;
Hired roughneck and dirt rod spacer: import 10-18.5mm, outlet 16-20mm;
Hired roughneck and stripping cutter space for 1.5-2mm;
(4) blowing: the raw material good by shredding, in feeding blowing equipment, carries out finer shredding to raw cotton, removes fine impurities further, and make the even lap or cotton flow that conform to quality requirements;
Design parameter is as follows: comprehensive hired roughneck's rotating speed 800-1000r/min, comprehensive hired roughneck and pedal roller spacer 7-10mm, comprehensive hired roughneck and dirt rod spacer: import 8-10mm, export 16-18mm, dirt rod spacer 5-8mm, hired roughneck's passage static pressure-49 ~-19.6Pa, dust cage air channel static pressure-294 ~-196Pa, fan speed is greater than the 10%-25% of comprehensive Beater Speed;
(5) comb and parallel cotton fibers prior to spinning: through the lap of scutching cotton, enter carding step, fibre bundle is thoroughly resolved into single fiber, remove the fine impurities remained in wherein, the composition that makes respectively to distribute cotton fully mixes under filament state, makes uniform sliver, to meet the requirement of later process.For ensureing card sliver quality, reduce the damage of fiber in carding process, adopt the technological principle of " light quantitative, jogging speed ", suitably reduce licker-in doffer speed, increase cylinder and licker-in surface speed ratio, the rate of transform of doffer and cylinder wants large, reduce fiber to fill, rub, increase combing transfer, to reduce the generation of cotton knot, use closed taker-in grid, reduce noil.Carding process parameter is as follows:
Produce quantitatively: 16 ~ 20g/5m; Cylinder rotating speed: 260 ~ 320r/min; Licker-in rotating speed: 624 ~ 760r/min; Doffer speed: 21 ~ 25r/min; Cover plate speed: 80 ~ 100mm/min
The definition of term " produce quantitatively, cylinder, licker-in, doffer and cover plate ", knits on handbook in cotton and is all described later in detail;
(6) drafting: the carded sliver long term irregularity that comb and parallel cotton fibers prior to spinning is made is higher, deviation of weight is comparatively large, and the extended parallelization of fiber is poor, and fiber alignment is disorderly, and most of fiber is crotch or case of bending, also there is fraction flock simultaneously.So, need the carded sliver to process ripe bar further through mixing in doubling step, to improve sliver quality.Drawing process parameter is as follows:
(7) rove: the drawing-off ability of ring spinning frame not yet reaches the requirement adopting the direct resultant yarn of ripe bar, so need Roving Frames to bear a part of drawing-off in spinning process.Because the initial modulus of aramid fiber is larger, rigidity is strong, therefore rove adopts the technological principle of " space greatly, large twist factor ", suitable amplification rove spaces, suitable increase back zone drafting multiple, and suitably reduce regular roving feeding, be all conducive to overcoming the drafting force that long fiber remaining in wool causes excessive, easily go out the problem of " hardhead ".Increase the rigidity that roving twist just can overcome wool and aramid fiber, improve the cohesive force between rove internal fiber, to reduce in the misdraft of twisting and spun yarn overhanging flyer causes during unwinding, major parameter configuration is as follows:
Regular roving feeding back zone drafting multiple ratch (proparea/back zone) roving twist factor
4.0～6.0g/10m1.08～1.4858～62.5/61～66.5mm80～90
(8) spun yarn: spinning process is spun into by rove to have a routing density, certain package, meet the spun yarn of QUALITY STANDARD or customer requirement, for twisting thread, weaving.Design parameter is as follows:
The temperature of comb and parallel cotton fibers prior to spinning, drafting, rove and spinning process is 26 ~ 30 DEG C, and relative humidity is 50 ~ 80%;
The present invention is mixed into a certain proportion of conductive fiber, and carries out preliminary treatment to raw material before spinning, adds antistatic additive and leaves standstill minimum 8 hours and carry out health process.And in process, the process conditions of strict each operation of control, and control comb and parallel cotton fibers prior to spinning, drafting, the temperature of rove and spinning process and relative humidity, well solve aramid fiber, the electrostatic serious problems of superhigh molecular weight polyethylene fibers when spinning, overcome the strong rigidity of aramid fiber, ensure that yarn qualities.
Detailed description of the invention
Embodiment 1
Formula: (percentage by weight)
Aramid fiber 85%
Superhigh molecular weight polyethylene fibers 13%
Conductive fiber 2%
Superhigh molecular weight polyethylene fibers, aramid fiber and conductive fiber gross weight 2% antistatic additive;
Yarn number is 21tex;
Described superhigh molecular weight polyethylene fibers, what select is the fiber of Yizheng Chemical Fibre Co., Ltd. of China Petrochemical Industry, and molecular weight is between 1,000,000-500 ten thousand;
The nylon of described conductive fiber to be inner core be graphitic carbon, adopts E.I.Du Pont Company's trade mark to be the product of P140;
Antistatic additive is selected from the TS-YK3 type antistatic additive of Dongguan Tian Sheng Chemical Industry Science Co., Ltd
Preparation method:
(1) pretreatment of raw material:
Antistatic additive is evenly sprayed on aramid fiber and superhigh molecular weight polyethylene fibers, and leaves standstill 24 hours, carry out health process;
(2) mixed cotton step: pretreated raw material is sent into cotton blender machine, by each fibers mixture;
(3) shredding: the Beater Speed of opener is configured to 500r/min; Dirt rod spacer: in the middle of import group 12mm, two groups of 8mm export one group of 6mm; Hired roughneck with give face roller spacer 9mm; Hired roughneck and dirt rod spacer import 16mm export 20mm; The 1.5mm that spaces of hired roughneck and stripping cutter;
(4) blowing:
Comprehensive hired roughneck's rotating speed 900r/min, comprehensive hired roughneck and pedal roller spacer 8mm, comprehensive hired roughneck and dirt rod spacer: import 9mm, export 17mm, the excellent spacer 6mm of dirt, hired roughneck's passage static pressure-29Pa, dust cage air channel static pressure-256Pa, fan speed is greater than 20% of comprehensive Beater Speed;
(5) comb and parallel cotton fibers prior to spinning: carding process parameter is as follows:
Produce quantitatively: 18.0g/5m; Cylinder rotating speed: 300r/min; Licker-in rotating speed: 690r/min; Doffer speed: 23r/min; Cover plate speed: 78mm/min;
(6) drafting: drawing process parameter is as follows:
(7) rove: parameter configuration is as follows:
Regular roving feeding back zone drafting multiple ratch (proparea/back zone) roving twist factor
4.8g/10m1.262.5/66.5mm70
(8) spun yarn: parameter is as follows:
The temperature of comb and parallel cotton fibers prior to spinning, drafting, rove and spinning process is 26 DEG C, and relative humidity is 70%.
The ASTMD3108-2001 standard test method of coefficient of friction " between yarn and the solid material " and ASTMD3412-2001 " standard test method of yarn and yarn-yarn friction coefficient " is adopted to test, coefficient of friction, below 0.25, ensure that the anti-balloon performance that yarn is good after being woven into fabric and crocking resistance effectively.
Embodiment 2
Formula:
Aramid fiber, superhigh molecular weight polyethylene fibers, anti-flaming viscose and conductive fiber gross weight 1.5% antistatic additive;
Yarn number is 37tex
Described superhigh molecular weight polyethylene fibers, what select is the fiber of Yizheng Chemical Fibre Co., Ltd. of China Petrochemical Industry, and molecular weight is between 1,000,000-500 ten thousand;
The nylon of described conductive fiber to be inner core be graphitic carbon, adopts E.I.Du Pont Company's trade mark to be the product of P140;
Antistatic additive is selected from the TS-YK3 type antistatic additive of Dongguan Tian Sheng Chemical Industry Science Co., Ltd
Preparation method:
(1) pretreatment of raw material:
Antistatic additive is evenly sprayed at aramid fiber, ultra-high molecular weight polyethylene, anti-flaming viscose and conductive fiber, and leaves standstill 16 hours, carry out health process;
(2) mixed cotton step: pretreated raw material is sent into cotton blender machine, and by each fibers mixture, described cotton blender machine can adopt general equipment;
(3) shredding: the Beater Speed of opener is configured to 600r/min; Dirt rod spacer: in the middle of import group 11mm, two groups of 6mm export one group of 4mm; Hired roughneck with give face roller spacer 8mm; Hired roughneck and dirt rod spacer import 10mm export 16mm; The 1.5mm that spaces of hired roughneck and stripping cutter.
(4) blowing: comprehensive hired roughneck's rotating speed 800r/min, comprehensive hired roughneck and pedal roller spacer 7mm, comprehensive hired roughneck and dirt rod spacer: import 8mm, export 16mm, dirt rod spacer 5mm, hired roughneck's passage static pressure-49Pa, dust cage air channel static pressure-196Pa, fan speed is greater than 10% of comprehensive Beater Speed;
(5) comb and parallel cotton fibers prior to spinning:
Produce quantitatively: 20g/5m; Cylinder rotating speed: 320r/min; Licker-in rotating speed: 760r/min; Doffer speed: 25r/min; Cover plate speed: 100mm/min
(6) drafting:
(7) rove:
Regular roving feeding back zone drafting multiple ratch (proparea/back zone) roving twist factor
6.0g/10m1.0858/61mm80
(8) spun yarn:
The temperature of comb and parallel cotton fibers prior to spinning, drafting, rove and spinning process is 26 DEG C, and relative humidity is 70%.
The ASTMD3108-2001 standard test method of coefficient of friction " between yarn and the solid material " and ASTMD3412-2001 " standard test method of yarn and yarn-yarn friction coefficient " is adopted to test, coefficient of friction, below 0.3, ensure that the anti-balloon performance that yarn is good after being woven into fabric and crocking resistance effectively.
Embodiment 3
Formula:
Aramid fiber, Fire resistant viscose fiber, superhigh molecular weight polyethylene fibers and conductive fiber gross weight 2% antistatic additive;
Yarn number is 14.6tex
Described superhigh molecular weight polyethylene fibers, what select is the fiber of Yizheng Chemical Fibre Co., Ltd. of China Petrochemical Industry, and molecular weight is between 1,000,000-500 ten thousand;
The nylon of described conductive fiber to be inner core be graphitic carbon, adopts E.I.Du Pont Company's trade mark to be the product of P140;
Antistatic additive is selected from the TS-YK3 type antistatic additive of Dongguan Tian Sheng Chemical Industry Science Co., Ltd
Preparation method:
(1) pretreatment of raw material:
Antistatic additive is evenly sprayed at aramid fiber, ultra-high molecular weight polyethylene, anti-flaming viscose and conductive fiber, and leaves standstill 24 hours, carry out health process;
(2) mixed cotton step: pretreated raw material is sent into cotton blender machine, and by each fibers mixture, described cotton blender machine can adopt general equipment;
(3) shredding: the Beater Speed of opener is configured to 450r/min; Dirt rod spacer: in the middle of import group 15mm, two groups of 10mm export one group of 7mm; Hired roughneck with give face roller spacer 8mm; Hired roughneck and dirt rod spacer import 10mm export 16mm; The 2mm that spaces of hired roughneck and stripping cutter.
(4) blowing: comprehensive hired roughneck's rotating speed 800r/min, comprehensive hired roughneck and pedal roller spacer 7mm, comprehensive hired roughneck and dirt rod spacer: import 10mm, export 18mm, dirt rod spacer 8mm, hired roughneck's passage static pressure-19.6Pa, dust cage air channel static pressure-196Pa, fan speed is greater than 10% of comprehensive Beater Speed.
(5) comb and parallel cotton fibers prior to spinning: carding process parameter is as follows:
Produce quantitatively: 16g/5m; Cylinder rotating speed: 260r/min; Licker-in rotating speed: 624r/min; Doffer speed: 21r/min; Cover plate speed: 80mm/min
The definition of term " produce quantitatively, cylinder, licker-in, doffer and cover plate ", knits on handbook in cotton and is all described later in detail;
(6) drafting: drawing process parameter is as follows:
(7) rove:
Regular roving feeding back zone drafting multiple ratch (proparea/back zone) roving twist factor
4.0g/10m1.4862.5/66.5mm90
(8) spun yarn: design parameter is as follows:
The temperature of comb and parallel cotton fibers prior to spinning, drafting, rove and spinning process is 26 ~ 30 DEG C, and relative humidity is 50 ~ 80%;
The ASTMD3108-2001 standard test method of coefficient of friction " between yarn and the solid material " and ASTMD3412-2001 " standard test method of yarn and yarn-yarn friction coefficient " is adopted to test, coefficient of friction, below 0.20, ensure that the anti-balloon performance that yarn is good after being woven into fabric and crocking resistance effectively.
Claims (6)
1. aramid fiber and ultra-high molecular weight polyethylene blended yarn, is characterized in that, comprises the component of following percentage by weight:
Preparation method, comprises as follows successively:
(1) pretreatment of raw material: by antistat spray on raw material surface, leave standstill more than 8 hours;
(2) mixed cotton step: pretreated raw material is sent into cotton blender machine, by each fibers mixture;
(3) shredding: mixed for step (2) fiber is sent into opener, shredding and removal of impurities are carried out to raw material;
(4) blowing: the raw material good by shredding, in feeding blowing equipment, carries out finer shredding to raw cotton;
(5) comb and parallel cotton fibers prior to spinning: through the lap of scutching cotton, enter carding step, obtains the carded sliver;
(6) drafting: by the carded sliver of step (5), drafting work processes ripe bar;
(7) rove and spun yarn, obtains product;
In step (3), design parameter is as follows: the Beater Speed of opener is configured to 450 ~ 600r/min;
Dirt rod spacer: import group 11-15mm, middle two groups of 6-10mm, export one group of 4-7mm;
Hired roughneck and feed roll motor spacer 8-11mm;
Hired roughneck and dirt rod spacer: import 10-18.5mm, outlet 16-20mm;
Hired roughneck and stripping cutter space for 1.5-2mm;
In step (4), design parameter is as follows: comprehensive hired roughneck's rotating speed 800-1000r/min, comprehensive hired roughneck and pedal roller spacer 7-10mm, comprehensive hired roughneck and dirt rod spacer: import 8-10mm, export 16-18mm, dirt rod spacer 5-8mm, hired roughneck's passage static pressure-49 ~-19.6Pa, dust cage air channel static pressure-294 ~-196Pa, fan speed is greater than the 10%-25% of comprehensive Beater Speed;
In step (5), technological parameter is as follows:
Produce quantitatively: 16 ~ 20g/5m; Cylinder rotating speed: 260 ~ 320r/min; Licker-in rotating speed: 624 ~ 760r/min; Doffer speed: 21 ~ 25r/min; Cover plate speed: 80 ~ 100mm/min;
In step (6), technological parameter is as follows:
(7) rove, parameter configuration is as follows:
(8) spun yarn, design parameter is as follows:
2. aramid fiber according to claim 1 and ultra-high molecular weight polyethylene blended yarn, is characterized in that, comprises the component of following percentage by weight:
3. aramid fiber according to claim 1 and 2 and ultra-high molecular weight polyethylene blended yarn, is characterized in that, described aramid fiber is aromatic hydrocarbon polyamide fiber;
Described superhigh molecular weight polyethylene fibers molecular weight is 1,000,000 ~ 5,000,000;
Described fire resistance fibre is anti-flaming viscose, fire-retardant Vinyon N or wool;
Nylon or the polyster fibre of described conductive fiber to be inner core be graphitic carbon.
4. aramid fiber according to claim 3 and ultra-high molecular weight polyethylene blended yarn, is characterized in that, described aramid fiber and ultra-high molecular weight polyethylene blended yarn wire size number are 9.7 ~ 37tex.
5. aramid fiber according to claim 3 and ultra-high molecular weight polyethylene blended yarn, is characterized in that, also comprise antistatic additive.
6. aramid fiber according to claim 1 and ultra-high molecular weight polyethylene blended yarn, is characterized in that: the temperature of comb and parallel cotton fibers prior to spinning, drafting, rove and spinning process is 26 ~ 30 DEG C, and relative humidity is 50 ~ 80%.
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| CN201574241U (en) * | 2009-11-17 | 2010-09-08 | 许耀基 | Wrap yarn structure body capable of being produced into light heat-proof glove |
| CN101724964A (en) * | 2009-11-19 | 2010-06-09 | 汕头市奥山服饰有限公司 | High-temperature resistant flame-retarding textile |
| CN102116595A (en) * | 2009-12-30 | 2011-07-06 | 宁波荣溢化纤科技有限公司 | Method for preparing stab-resistant fabric |
| CN103184604A (en) * | 2011-12-28 | 2013-07-03 | 盐城市华跃织布厂 | Technology and device for manufacturing aramid core-spun polyethylene fiber yarn |
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