CN101377027A - Flame-proof electrostatic resistance yarn and its processing method - Google Patents
Flame-proof electrostatic resistance yarn and its processing method Download PDFInfo
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Abstract
The invention relates to retardant anti-static yarn and a processing method thereof, which belongs to the technical field of spinning. The yarn is composed of the following materials by the weight percentage: 70 percent to 95 percent of meta aramid fiber, 3 percent to 28 percent of para aramid fiber and 1.5 percent to 4 percent of anti-static fiber. The afterflame time of the retardant anti-static yarn obtained by the disclosed technical proposal is short (shorter than 4S), the damage length is less than 100mm, the wear resistance level is higher than or equal to 3.5, and the mass specific resistance is less than 7.4*10<10>; because of the meta aramid fiber, the para aramid fiber and the anti-static fiber, the retardant and anti-static effect are permanent and do not fade; the recommended process requirements are not harsh and can ensure the technical effect of the retardant anti-static yarn.
Description
Technical field
The invention belongs to textile technology field, be specifically related to a kind of flame-proof electrostatic resistance yarn, and relate to the processing method of flame-proof electrostatic resistance yarn.
Background technology
Be widely used in fields such as space flight and aviation, army, fire-fighting, petrochemical industry, electric, combustion gas, mechanical metallurgies by the made dress ornament of fire-retardant lining, and the basis of fire-retardant lining is undoubtedly flame-retardant yarn.The raw material that is used to process flame-retardant yarn mainly contains following two kinds, and the one, through conventional synthetic fiber such as polyster fibre, nylon fibre or the polyester-nylon complex fiber that surface flame-retardant is handled, perhaps use for example viscose etc. of regenerated fiber that surface flame-retardant handles; Two are to use meta-aramid fibers.The processing method of yarn is successively through opening picking, comb and parallel cotton fibers prior to spinning, drafting, rove, spinning and winder.Though the flame-retardant yarn that the former makes has flame retardant effect, but because this effect is to obtain by the surface treatment to raw material, therefore when the dress ornament made from this yarn along with the passing of service time and the increase of washing times, flame retardant effect can fail gradually and even be all gone; The flame-retardant yarn that the latter makes is owing to having used meta-aramid fibers to have lasting anti-flaming function, but dress ornament wear-resisting, anti-of using this kind meta-aramid yarn processing tears, antistatic property all is difficult to satisfy desired requirement, for example wearing coefficient only is 2 grades, and after flame time is usually more than 5 seconds.
Chinese invention patent publication number CN101173393A recommends that the anlistatig functional yarn of a kind of radiation proof is arranged, though there is the merit of anti-electromagnetic radiation not have fire-retardant effect.Publication number CN101187101A introduces weaving of flame-retardant yarn, and the yarn raw material adopts natural cotton fiber, viscose, polyster fibre, flame retardant polyester, Vinyon N fire resistance fibre and TOYOBO Heim fire resistance fibre (seeing Instructions Page 3 the 1st～3 row); Publication number CN101177817A discloses fire-retardant wrapper fibre, it is that highly purified magnesium hydroxide or aluminium hydroxide inorganic combustion inhibitor are crushed to micron order by airslide disintegrating mill, phenolic resins with fusion mixes and adds the dispersant granulation with it again, obtain master batch, with master batch and phenolic resins melt spinning in proportion, twist with the fingers into line then.As seen, the resulting yarn of CN101187101A and CN101177817A all exists first kind of situation in two kinds of situations that the applicant said in the above, its shortcoming is self-evident equally, i.e. the increase of passing that flame retardant effect can be in time and washing times and weakening.The applicant thinks, have only is that fiber is started with from the raw material that constitutes yarn really, promptly have only and reasonably select fiber and selected fiber is carried out rational proportion, could embody effectively true and nature and be nonvolatil flame retardant effect, the technical scheme that the present invention will introduce below is based on producing under this background.
Summary of the invention
Task of the present invention is to provide lasting, the wear-resisting grade height of a kind of flame retardant effect, the flame-proof electrostatic resistance yarn that anti-TEAR STRENGTH is good, after flame time is short and antistatic effect is desirable.
Task of the present invention also is to provide a kind of processing method of flame-proof electrostatic resistance yarn, and this method can ensure that flame-proof electrostatic resistance yarn has described effect.
Task of the present invention is finished like this, a kind of flame-proof electrostatic resistance yarn, and it is to be made of following raw material by weight percentage: meta-aramid fibers 70-95%, para-aramid fiber 3-28%, antistatic fibre 1.5-4%.
In a specific embodiment of the present invention, the length of described meta-aramid fibers, para-aramid fiber and antistatic fibre is 38 or 51mm.
In another specific embodiment of the present invention, the organic antistatic fibre of described antistatic fibre for constituting by carbon black and polyamide fiber material composite spinning.
An also task of the present invention is finished like this, a kind of processing method of flame-proof electrostatic resistance yarn, and it may further comprise the steps:
A). produce blended fiber, take by weighing earlier meta-aramid fibers and para-aramid fiber by weight percentage, then the meta-aramid fibers that is taken by weighing is mixed with the para-aramid fiber that is taken by weighing, and in mixed process, add antistatic additive, obtain the aramid fiber blended fiber that meta-aramid fibers and para-aramid fiber mix mutually;
B). opening picking, by the opening picking device aramid fiber blended fiber is made the chemical fibre volume;
C). produce the carded sliver, chemical fibre is rolled up combing, obtain the carded sliver with carding machine;
D). produce ripe, with and strip device earlier with antistatic fibre bar and aramid fiber blended fiber pre-drawing and close, obtain the pre-silver mixing of antistatic fibre, again with pre-silver mixing of antistatic fibre and aramid fiber blended fiber pre-drawing and close, obtain ripe;
E). produce the rove bar, with the rove device ripe is elongated equably and take out carefully, obtain the rove bar, and hold doing quantitatively and the twist of rove bar;
F). spinning, with compact spinning apparatus the rove bar is spun into compact yarn, and the quantitatively dried and twist of control compact yarn;
G). heat is set twist, and with heat dead twist pot compact yarn is carried out high heat, the processing of high humidity yarn steaming;
H). winder, will be wound up on the bobbin through the compact yarn after the overheated dead twist with the slot-cylinder type bobbin winder, obtain flame-proof electrostatic resistance yarn.
The adding mode of the adding antistatic additive in another specific embodiment of the present invention, steps A) adds for spraying, and the addition of antistatic additive is the 2.5-3.5% of meta-aramid fibers and para-aramid fiber gross weight; Wherein, the concentration of antistatic additive in water is 3-5%.
The length of the chemical fibre volume more of the present invention and in specific embodiment, step B) be 〉=20m, and described to do quantitatively be 380g/m, and step C) described in the dried quantitative of the carded sliver be 20g/5m.
In of the present invention and then specific embodiment, step D) elder generation described in is with antistatic fibre bar and aramid fiber blended fiber pre-drawing and close and be meant and 1 antistatic fibre bar and 7 aramid fiber blended fiber pre-drawings are carried out and close; And pre-silver mixing of described antistatic fibre and aramid fiber blended fiber pre-drawing and closing is meant and the pre-silver mixing of 1-2 root antistatic fibre and 6-7 root aramid fiber blended fiber pre-drawing are carried out and closes.
Of the present invention again more and in specific embodiment, step e) the assurance rove bar described in do quantitatively and the twist is meant the dried of rove bar quantitatively is controlled to be 4.1g/10m and the twist is controlled to be 3.4 sth. made by twisting/10cm.
Of the present invention also more and in specific embodiment, step F) the control compact yarn described in do quantitatively and the twist is meant and compact yarn dried quantitatively is controlled to be 1.875g/100m and the twist is controlled to be 78 sth. made by twisting/10cm.
In again of the present invention and then specific embodiment, step G) vacuum of heat dead twist pot described in is-0.05--0.07Mpa, temperature are that 85-95 ℃ and temperature retention time are 50-120min.
The present invention by the after flame time of the resulting flame-proof electrostatic resistance yarn of above-mentioned disclosed technical scheme short (＜4S), char length＜100mm, wear-resisting grade 〉=3.5 grade, mass specific resistance (7.4 * 10
10Because between having adopted, para-aramid fiber and antistatic fibre, therefore fire-retardant and antistatic effect forever and not fails; The technological requirement of recommending is not harsh and can ensure the described technique effect of flame-proof electrostatic resistance yarn.
The specific embodiment
The employed meta-aramid fibers of flame-proof electrostatic resistance yarn of the present invention is the aramid fiber 1313 fiber of China's name, and employed para-aramid fiber is the Fanglun l414 of China's name.The strand of meta-aramid is arranged indentation, and the arrangement of the strand of p-aramid fiber is linearly.Meta-aramid becomes high-quality functional fiber with its outstanding high-temperature insulation, and p-aramid fiber makes it in high-performance fiber in occupation of important core status because of having fabulous metallic character.The Heat stability is good of aramid fiber, can at high temperature use more than 10 years not aging continuously, under 240 ℃, can keep 1000h not aging, and mechanical strength still can keep original 65%, DIMENSIONAL STABILITY is splendid, percent thermal shrinkage about 250 ℃ only is 1%, and the short time is exposed in 300 ℃ the high temperature also not can contraction, embrittlement, softening or fusion, is just decompositing a small amount of gas such as CO more than 370 ℃
2, CO, N
2, about 400 ℃ begin carbonization.The anti-flammability of aramid fiber: OI value (oxygen index value) is 28-32, belongs to the permanent fire retardant fiber, has self-extinguishment, and high-temp combustion surface carbonization is not burnt in air, does not produce molten, and favorable protection is arranged.In addition, the electrical insulating property of para-aramid fiber, chemical stability, mechanical property, radiation resistance all are very good.
In view of this, the applicant will between, para-aramid fiber and antistatic fibre should be a kind of ultimate attainment material choice by preferred proportioning as the raw material of flame-proof electrostatic resistance yarn.
Embodiment 1:
Adopting meta-aramid fibers, para-aramid fiber and antistatic fibre to process yarn wire size number is the 19.7tex flame-proof electrostatic resistance yarn, wherein: the percentage by weight 93% of meta-aramid fibers, the percentage by weight of para-aramid fiber be 5% and the percentage by weight of antistatic fibre be 2%, procedure of processing is as follows.
A). produce blended fiber, it is that to account for 5.1% specification be that the para-aramid fiber of 1.5D * 51mm mixes with the habitual cotton blender machine of spinning industry for meta-aramid fibers and the percentage by weight of 2.5D * 51mm that percentage by weight is accounted for 94.9% specification, with meta-aramid fibers with spray antistatic emulsion with spray pattern when para-aramid fiber mixes mutually, antistatic emulsion is with the antistatic additive gained that is dissolved in the water, the concentration of antistatic additive in water is 3.5%, be to contain the 3.5g antistatic additive in every 100g water, the sprinkling amount of antistatic emulsion be meta-aramid fibers and para-aramid fiber gross weight 2.5%, preferred but not antistatic additive that be limited to adopts by the big magnificent textile auxiliary of Jiangsu Province, China Changzhou Co., Ltd and produces, the product sold trade mark is a CD-III type antistatic additive, after A006BSFW type blending hopper automatic mixer that cotton blender machine is for example produced by Chinese Zhejiang Province Yongkang city Si Meilong frame Co., Ltd is with meta-aramid fibers and para-aramid fiber mixing, obtain the aramid fiber blended fiber that meta-aramid fibers and para-aramid fiber mix mutually;
B). opening picking, blow room system is also referred to as blowing process, opening picking is first procedure of spinning process, specifically be will be by steps A by the opening or cleaning cotton machine) shredding of resulting aramid fiber blended fiber, making dried quantitatively is that 380 gram/m, length are the chemical fibre volume of 30.6m, in addition, hold the thin tip-tap of feeding in opening and cleaning step, many combs are few to be beaten;
C). produce the carded sliver, with carding machine to by step B) combing of resulting chemical fibre volume, obtain bar and do that to do uniformly be the carded sliver for the 20g/5m card sliver quantitatively;
D). produce ripe, earlier with 1 antistatic fibre bar and 7 aramid fiber blended fiber pre-drawings with drawing frame and close, obtain every meter pre-silver mixing of antistatic fibre that contains antistatic fibre 0.61 gram, thereafter again 1 pre-silver mixing of antistatic fibre and 7 aramid fiber blended fiber pre-drawings are merged, and adopt three roads to mix also (also to claim mixing in doubling step three times), thereby obtain doing quantitative ripe for 16g/10m, the antistatic fibre of being said in this step is that organic antistatic fibre is promptly resulting by carbon black and polyamide fiber composite spinning, can extensive acquisition from market, for example can adopt the model of being produced by Chinese Hebei province Tangshan City Tangshan Sanyou Group Chemical Fiber Co., Ltd is the SSS antistatic fibre.
E). produce the rove bar, will be by step D with Speed frames) resulting ripe elongation take out carefully obtain doing quantitatively for 4.1g/10m and the twist be the rove bar of 3.4 sth. made by twisting/10cm;
F). spinning, will be with compact spinning apparatus by step e) resulting rove bar be spun into do quantitatively for 1.875g/100m and the twist be the blending compact yarn of 78 sth. made by twisting/10cm, closely spinning that this step is said is a kind of novel spinning technology of spinning on improved novel ring throstle, its spinning mechanism mainly is: increased a fibre deposition district (also claiming to gather the district) before the ring throstle draw-gear, eliminated front roller to the spinning twist triangle zone between the twisting, fiber strip is after the output of front roller prosopyle, by gathering pipe (also claiming special-shaped aspiration channel) overcoat mesh apron, yarn moves on the mesh apron, because the contraction and the polymerization of air-flow, air draught groove by special pipe makes strand integrated composite, rotate and progressively transfer cylinder to from flat belt-like, the termination of fiber is all twisted with the fingers in the yarn, therefore resultant yarn is very tight, yarn appearance is bright and clean, filoplume is few, and is preferred but not compact spinning apparatus that be limited to adopts Jiangyin, Jiangsu Province, China China to spin the HFJA1516 compact spinning apparatus that Technew SA produces;
G). the heat dead twist, with heat dead twist pot to by step F) resulting do quantitatively for 1.875g/100m and the twist be that the blending compact yarn of 78 sth.s made by twisting/10cm carries out heat and sets twist, vacuum-0.07Mpa, the temperature of control heat dead twist is that 95 ℃ and temperature retention time are 50min, according to the reason known to the industry, the function of heat dead twist is to eliminate the internal stress of yarn, permanent twist;
H). winder, with the slot-cylinder type bobbin winder routinely technology be that cotton mill is habitually practised in the prior art technology will be by step G) compact spinning line after the heat dead twist is that compact yarn is wound up on the bobbin, the number of obtaining number is the flame-proof electrostatic resistance yarn of 19.7tex, the content of the meta-aramid fibers in this yarn is 93%, the content of para-aramid fiber is 5%, the content of antistatic fibre is 2%, and the content of being said is weight percent here.
Embodiment 2:
Change the percentage by weight of meta-aramid fibers into 70%, the percentage by weight of para-aramid fiber changes 26% into, changes the percentage by weight of organic antistatic fibre into 4%, and number number of flame-proof electrostatic resistance yarn changes 16.4tex into.
Only with steps A) in the percentage by weight of meta-aramid fibers change 72.9% into, the percentage by weight of para-aramid fiber changes 27.1% into, the concentration of antistatic additive in water changes 2.5% into; With step D) in antistatic fibre bar and seven aramid fiber blended fiber pre-drawings carry out and close, make every meter pre-silver mixing of antistatic fibre that contains antistatic fibre 0.58 gram, then 6 aramid fiber blended fiber pre-drawings and 2 pre-silver mixings of antistatic fibre are mixed also; In step F) in only change total draft multiple, jaw folder distance and the steel traveler model and the twist of tight frame, quantitatively be 1.56g/100m thereby obtain doing, the twist is the blending compact yarn of 85 sth. made by twisting/10cm; At step G) in 87 ℃ of vacuum-0.05Mpa, temperature and the temperature retention time of control heat dead twist be 85min.All the other are with embodiment 1.
Embodiment 3:
Change the percentage by weight of meta-aramid fibers into 85%, the percentage by weight of para-aramid fiber changes 13.5% into, changes the percentage by weight of organic antistatic fibre into 1.5%, and the yarn wire size number of flame-proof electrostatic resistance yarn changes 24.6tex into.
Only with steps A) in the percentage by weight of meta-aramid fibers change 86.3% into, the percentage by weight of para-aramid fiber changes 13.7% into, the concentration of antistatic additive in water changes 2.8% into; With step D) in 1 antistatic fibre bar and 7 aramid fiber blended fiber pre-drawings carry out and close, make every meter pre-silver mixing of antistatic fibre that contains antistatic fibre 0.45 gram; The total draft multiple of the tight frame tool the change step F), jaw folder distance and the steel traveler model and the twist quantitatively are 2.34g/100m thereby obtain doing, and the twist is the blending compact yarn of 70 sth. made by twisting/10cm; Change step G) in vacuum be 115min for-0.06Mpa, 90 ℃ of temperature and temperature retention time.All the other are with embodiment 1.
The flame-proof electrostatic resistance yarn that the present invention obtains by the foregoing description has the excellent technical indicator shown in the following table after tested:
Claims (10)
1, a kind of flame-proof electrostatic resistance yarn is characterized in that it is to be made of following raw material by weight percentage: meta-aramid fibers 70-95%, para-aramid fiber 3-28%, antistatic fibre 1.5-4%.
2, flame-proof electrostatic resistance yarn according to claim 1 is characterized in that described meta-aramid fibers, para-aramid fiber and antistatic fibre length are 38 or 51mm.
3, flame-proof electrostatic resistance yarn according to claim 1 and 2 is characterized in that described antistatic fibre is organic antistatic fibre.
4, a kind of processing method of flame-proof electrostatic resistance yarn as claimed in claim 1 is characterized in that it may further comprise the steps:
A). produce blended fiber, take by weighing earlier meta-aramid fibers and para-aramid fiber by weight percentage, then the meta-aramid fibers that is taken by weighing is mixed with the para-aramid fiber that is taken by weighing, and in mixed process, add antistatic additive, obtain the aramid fiber blended fiber that meta-aramid fibers and para-aramid fiber mix mutually;
B). opening picking, by the opening picking device aramid fiber blended fiber is made the chemical fibre volume;
C). produce the carded sliver, chemical fibre is rolled up combing, obtain the carded sliver with carding machine;
D). produce ripe, with and strip device earlier with antistatic fibre bar and aramid fiber blended fiber pre-drawing and close, obtain the pre-silver mixing of antistatic fibre, again with pre-silver mixing of antistatic fibre and aramid fiber blended fiber pre-drawing and close, obtain ripe;
E). produce the rove bar, with the rove device ripe is elongated equably and take out carefully, obtain the rove bar, and hold doing quantitatively and the twist of rove bar;
F). spinning, with compact spinning apparatus the rove bar is spun into compact yarn, and the quantitatively dried and twist of control compact yarn;
G). heat is set twist, and with heat dead twist pot compact yarn is carried out high heat, the processing of high humidity yarn steaming;
H). winder, will be wound up on the bobbin through the compact yarn after the overheated dead twist with the slot-cylinder type bobbin winder, obtain flame-proof electrostatic resistance yarn.
5, the processing method of flame-proof electrostatic resistance yarn according to claim 4, it is characterized in that steps A) described in the adding mode of adding antistatic additive for spray adding, the addition of antistatic additive is the 2.5-3.5% of meta-aramid fibers and para-aramid fiber gross weight; Wherein, the concentration of antistatic additive in water is 3-5%.
6, the processing method of flame-proof electrostatic resistance yarn according to claim 4 is characterized in that step B) described in the length of chemical fibre volume be 〉=20m, described to do quantitatively be 380g/m, and step C) described in the dried quantitative of the carded sliver be 20g/5m.
7, the processing method of flame-proof electrostatic resistance yarn according to claim 4 is characterized in that step D) described in elder generation with antistatic fibre bar and aramid fiber blended fiber pre-drawing and close and be meant and 1 antistatic fibre bar and 7 aramid fiber blended fiber pre-drawings are carried out and close; And pre-silver mixing of described antistatic fibre and aramid fiber blended fiber pre-drawing and closing is meant and the pre-silver mixing of 1-2 root antistatic fibre and 6-7 root aramid fiber blended fiber pre-drawing are carried out and closes.
8, the processing method of flame-proof electrostatic resistance yarn according to claim 4 is characterized in that step e) described in assurance rove bar do quantitatively and the twist is meant the dried of rove bar quantitatively is controlled to be 4.1g/10m and the twist is controlled to be 3.4 sth. made by twisting/10cm.
9, the processing method of flame-proof electrostatic resistance yarn according to claim 4 is characterized in that step F) described in the control compact yarn do quantitatively and the twist is meant and compact yarn dried quantitatively is controlled to be 1.875g/100m and the twist is controlled to be 78 sth. made by twisting/10cm.
10, the processing method of flame-proof electrostatic resistance yarn according to claim 4 is characterized in that step G) described in the vacuum of heat dead twist pot be-0.05--0.07Mpa, temperature are that 85-95 ℃ and temperature retention time are 50-120min.
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| WO2011083489A1 (en) * | 2010-01-05 | 2011-07-14 | Manikam Ramaswami | High tear strength flame resistant cotton fabric |
| CN102181977A (en) * | 2011-04-11 | 2011-09-14 | 浙江春江轻纺集团有限责任公司 | Antistatic yarns and processing method |
| CN102586973A (en) * | 2012-02-23 | 2012-07-18 | 常熟市宝沣特种纤维有限公司 | Method for preparing aramid yarns by using recovered aramid filaments |
| CN102618984A (en) * | 2012-04-20 | 2012-08-01 | 平湖日舒纺织有限公司 | Fire-prevention and flame-retardant aramid fiber yarn and preparation method thereof |
| CN101724965B (en) * | 2009-11-19 | 2012-12-12 | 汕头市奥山服饰有限公司 | Antistatic flame-retardant textile |
| CN103541097A (en) * | 2013-10-06 | 2014-01-29 | 太原理工大学 | Flame-retardant and anti-static fabric and method for weaving flame-retardant and anti-static fabric |
| CN103966718A (en) * | 2014-05-21 | 2014-08-06 | 苏州市吴中区甪直明达漂染厂 | Dual blend-knitted flame-retardant fiber yarn |
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| CN101724965B (en) * | 2009-11-19 | 2012-12-12 | 汕头市奥山服饰有限公司 | Antistatic flame-retardant textile |
| US8689413B2 (en) | 2010-01-05 | 2014-04-08 | Manikam Ramaswami | High tear strength flame resistant cotton fabric |
| WO2011083489A1 (en) * | 2010-01-05 | 2011-07-14 | Manikam Ramaswami | High tear strength flame resistant cotton fabric |
| CN102181977A (en) * | 2011-04-11 | 2011-09-14 | 浙江春江轻纺集团有限责任公司 | Antistatic yarns and processing method |
| CN102181977B (en) * | 2011-04-11 | 2012-09-05 | 浙江春江轻纺集团有限责任公司 | Antistatic yarns and processing method |
| CN102586973A (en) * | 2012-02-23 | 2012-07-18 | 常熟市宝沣特种纤维有限公司 | Method for preparing aramid yarns by using recovered aramid filaments |
| CN102618984A (en) * | 2012-04-20 | 2012-08-01 | 平湖日舒纺织有限公司 | Fire-prevention and flame-retardant aramid fiber yarn and preparation method thereof |
| CN103541097B (en) * | 2013-10-06 | 2015-07-29 | 太原理工大学 | A kind of inflaming-retarding antistatic fabric and weaving method thereof |
| CN103541097A (en) * | 2013-10-06 | 2014-01-29 | 太原理工大学 | Flame-retardant and anti-static fabric and method for weaving flame-retardant and anti-static fabric |
| CN103966718A (en) * | 2014-05-21 | 2014-08-06 | 苏州市吴中区甪直明达漂染厂 | Dual blend-knitted flame-retardant fiber yarn |
| CN104499161A (en) * | 2014-12-18 | 2015-04-08 | 常熟市宝沣特种纤维有限公司 | Permanent flame-retardant multifunctional fabric and making method thereof |
| CN104499161B (en) * | 2014-12-18 | 2016-04-06 | 常熟市宝沣特种纤维有限公司 | Permanent fire retardant multifunctional fabric and preparation method thereof |
| CN106032602A (en) * | 2015-03-17 | 2016-10-19 | 常熟市宝沣特种纤维有限公司 | Permanent flame retardant deflagration and electric arc prevention fabric and manufacturing method thereof |
| CN105483890A (en) * | 2016-01-21 | 2016-04-13 | 常熟市宝沣特种纤维有限公司 | Multifunctional inherent-flame-retardant viscose blended yarn, fabric and yarn preparation method |
| US11078608B2 (en) * | 2016-11-01 | 2021-08-03 | Teijin Limited | Fabric, method for manufacturing same, and fiber product |
| CN106861292A (en) * | 2017-02-27 | 2017-06-20 | 辽宁鸿盛环境技术集团有限公司 | A kind of woven filtrate of organic fiber and preparation method |
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| CN111778603A (en) * | 2020-07-14 | 2020-10-16 | 魏桥纺织股份有限公司 | Ultralow-proportion blending process and method for preparing yarns by using same |
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