CN104562344B - Complete gathering spins tencel/Modal/cotton blending yarn and Yarn spinning method thereof - Google Patents

Complete gathering spins tencel/Modal/cotton blending yarn and Yarn spinning method thereof Download PDF

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Publication number
CN104562344B
CN104562344B CN201510028361.1A CN201510028361A CN104562344B CN 104562344 B CN104562344 B CN 104562344B CN 201510028361 A CN201510028361 A CN 201510028361A CN 104562344 B CN104562344 B CN 104562344B
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tencel
speed
modal
cotton
spinning
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CN104562344A (en
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陈榕
赵殿栋
严以登
周卫东
朱敏敏
刘松
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Jiangsu Yueda Home Textile Co Ltd
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JIANGSU YUEDA TEXTILE Corp (GROUP)
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04Blended or other yarns or threads containing components made from different materials
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/02Cotton
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20Cellulose-derived artificial fibres
    • D10B2201/22Cellulose-derived artificial fibres made from cellulose solutions

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Woven Fabrics (AREA)

Abstract

A kind of complete gathering spins tencel/Modal/cotton blending yarn and Yarn spinning method thereof, and spinning material matching method is: by tencel A100 and weaving cellulose modal mix homogeneously, blending combed long staple cotton in product;Tencel A100 fiber dimensious selects 1.3D × 38mm;Weaving cellulose modal selects 0.8D × 34mm;Cotton fiber selects 137A Xinjiang Long staple cotton;The content of tencel A100 fiber is not less than 15%.By methods such as specific spinning, the examined index of this product is made to meet the requirement of GB/T29258 2012 " combing cotton blended spinning true qualities yarn " standard Grade A.

Description

Complete gathering spins tencel/Modal/cotton blending yarn and Yarn spinning method thereof
Technical field
The invention belongs to textile technology field, specifically a kind of complete poly-spin tencel/Modal/cotton blending yarn and Method for weaving.
Technical background
Pursuing environmental protection, health, today of fashion, people are to dress-goods comfortableness, functional, healthy Sexual demand is increasingly becoming trend.In recent years, obtain at various differential, functional, new type functional synthetic fibers To the while of wide variety of, the application of functional regenerated cellulose fibre there has also been fast development.Use on market Viscose glue, tencel, regenerated celulose fibre flexibility, the good hygroscopicity such as Modal, antistatic, in earth Can natural decomposition, environmentally safe, wherein no coupling product in tencel fiber, weaving cellulose modal production process, Discharge outside factory without garbage, be environmental protection or green fiber.On the basis of general function, increase some health is had The fiber of the specific function of benefit is also among research and extension is applied, such as anti-bacterial fibre, thermal fiber, uvioresistant Line fiber, far IR fibre, hygroscopic fibre, skin care fiber etc..Differential functional fiber is given birth to The shared at present market share of the fabric that produces, clothing, the product such as bed necessaries gradually increases, but without becoming market Leading products, reason one is that raw material production cost is high, and supply is few;Two is that finished product price is high, belongs to medium-to-high grade Product, consumer is mainly a part relatively booming income crowd;Three is that the accreditation of functional textile is also required to by people One process;Four is that part of functions textile only rests on concept, and actual efficacy is bad, have impact on consumption The enthusiasm that person buys.To this end, the development & production supplier of functional fiber and finished product thereof answers a surname of larger production Power transmission degree, makes great efforts to reduce cost, and guarantees that functional fiber is qualified, makes the product consumption can be by medium income Even low-income earner accepts.
Summary of the invention
In order to solve prior art exists the problem of " functional " textile " merely nominal ", propose one Plant complete gathering and spin tencel/Modal/cotton blending yarn and Yarn spinning method thereof.
A kind of complete gathering spins tencel/Modal/cotton blending yarn, and spinning material matching method is: by tencel A100 With weaving cellulose modal mix homogeneously, for improve fiber spinnability, a certain amount of combed long staple cotton of blending in product, Reduce yarn qualities the most to a certain extent simultaneously.
Tencel A100 fiber dimensious selects 1.3D × 38mm;Weaving cellulose modal selects 0.8D × 34mm;Cotton fiber Select 137A Xinjiang Long staple cotton;The content of tencel A100 fiber is not less than 15%.
Product specification is: tencel A100 fiber 30/ weaving cellulose modal 30/ combed long staple cotton 4080S/2.Mixed Spinning ratio 30:30:40,80 English prop up bifilar complete poly-spinning.
A kind of above-mentioned complete poly-Yarn spinning method spinning tencel/Modal/cotton blending yarn, step is: tencel A100 Fiber, weaving cellulose modal become bar through opening or cleaning, carding step respectively;The most respectively through the most also;Then with combing long wool Cotton three roads that carry out on drawing frame mix also;Next through rove, Quan Jufang, winder, it is twisted line again;Its feature It is
In carding step, band is selected to lead the carding machine of cotton apron,
For tencel A100: cylinder speed 340 ± 15r/min;Licker-in speed is 680 ± 30r/min;Doffer Speed is 40 ± 4r/min;
For Modal: cylinder speed 340 ± 15r/min;Licker-in speed is 680 ± 30r/min;Doffer's speed Degree is 34 ± 3r/min;
In mixing in doubling step, sliver exporting speed is 200 ± 20 ms/min, rubber roll employing nylon antistatic roller;Tension force The quantizing range of drawing-off is: drafting multiple is 0.99~1.02;
In Roving Frames, twist factor is 72~80, and ingot speed is 800~900r/min;
Use the complete poly-spinning process that spins to realize spinning process, its twist factor 373 ± 10, roller gauge 18 × 38, negative pressure 600 ± 60Pa;
The speed of winder is 750~850m/min.
Selection process is as follows:
As front road spinning process:
In opening or cleaning operation, owing in fiber, impurity content is few, use the work of " how comb is beaten less, receive falls less " Skill, reduces the damage to fiber, improves row yielding.Two kinds of fibers all use the pipeline distance of short structure, shredding Selecting a shredding point in operation, be mixed into master with shredding, how comb is beaten less, receive falls less, reduces fiber Damage.
In carding step, select band to lead the carding machine of cotton apron, take " jogging speed, light quantitatively, reclaim more, Small tension receiving coil " technique, suitably amplify cylinder flat and space (i.e. 8*7*7*7*8 ");
For tencel A100: cylinder speed 340r/min;Licker-in speed is 680r/min;Doffer speed is 40r/min;
For Modal: cylinder speed 340r/min;Licker-in speed is 680r/min;Doffer speed is 34r/min;
Mixing in doubling step take " small tension receiving coil, light quantitatively, jogging speed, many and close " technological principle, sliver exporting speed It is 200 ms/min, rubber roll employing nylon 6 coating antistatic roller;The quantizing range of tension draft is drawing-off times Number is 1~1.01.
Roving Frames takes the technological principle of " the big twist, light quantitative, jogging speed ", strengthens the twist, reduces Ingot speed, twist factor is 77, and ingot speed is 850r/min;
As rear road spinning process:
Spinning process uses complete gathering to spin spinning process, twist factor 373, roller gauge 18*38, negative pressure 600Pa;
Speed 800m/min of winder.
Product quality indicator situation:
Complete gathering spins tencel A10030/ Modal 30/ cotton 4080S/ 2K line, the single thread ultimate strength coefficient of variation: 5.1%;The line density coefficient of variation: 3%, line density deviation ratio :+1.0%;Strip dry uniformity variant coefficient 9.8%; Blackboard cotton junction grain number: 10/g;Blackboard cotton junction impurity sum: 10/g;Single thread fracture strength 21.4cN/tex. Through city, examination of fibers is checked, and examined index meets GB/T29258-2012 " combing cotton blended spinning true qualities yarn " The requirement of standard Grade A.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further described as follows:
One. main exploitation content and key problem in technology
1, the selection of tencel fiber
Though tencel fiber has the feel of cotton, the moisture absorption of fiber crops is breathed freely, hair well-pressed, the gloss of silk, terylene The excellent specific properties such as strength, but easily there is fibrillation problem, after giving during producing and using in tencel G100 Processing and the use in road are made troubles, and through some tentative experiments, the present invention selects tencel A100, Lenzin Tencel A100 that company releases avoids the fibrillation problem of tencel G100.
2, the selected technology between spinning count, blending rate and raw material.
Yarn count number props up in choosing or height is to improve product specification.For ensureing product quality and quality, and control Yarn cost processed, by experimental design, chooses optimal tencel, Modal, cotton blending rate.Application is complete poly- Spin fine sand technique, improve the performance indications such as yarn strength, bar evenness.
Application complete gathering spins spinning process, and the specification of tencel A100 fiber selects 1.3D × 38mm, Modal Selecting the cotton staple of 0.8D × 34mm, cotton fiber selects 137 Xinjiang Long staple cotton.
3, research tencel A100, Modal and the hybrid technique technology of cotton fiber blending.
Determining method including optimal blending ratio, the process route of mixing determines.For ensureing fabric prepared by yarn Certain feel, drapability and lead wet performance of keeping humidity, the content of tencel A100 fiber is typically not less than 15%.
4, the front research spinning process quality control technology.
Including blowing, comb and parallel cotton fibers prior to spinning, drafting, combing, the fixing quantity technology of each operation of rove, tencel, Modal Fore-spinning control, the technical problem such as the control of humiture.
5, complete poly-spinning equipment spins spinning technique and the research of technological parameter of tencel/Modal/silk/cotton blended yarn.
Transformation including complete poly-spinning process: based on common three roller length apron drafting arrangements, retain original Rear roller in spinning frame, is replaced by front roller with gathering narrow slot type hollow roller, changes special roller simultaneously Seat, and equipped with air draught assembly inside hollow roller.The drawing-off of Nesting Zone top is made up of front leather roller and resistance twist roller, Roller pressure frame is suitable for original reel cage fore paw, is aided with airflow guiding device simultaneously so that fiber strip can fill Diversity is gathered.The selection of auxillaries, technological parameter selects, and quality index meets design requirement, environmental Kuznets Curves etc..
Two, research of technique and summary
Pursuing environmental protection, health, today of fashion, people are to dress-goods comfortableness, functional, healthy Sexual demand is increasingly becoming trend.In recent years, obtain at various differential, functional, new type functional synthetic fibers To the while of wide variety of, the application of functional regenerated cellulose fibre there has also been fast development.Use on market Viscose glue, tencel, regenerated celulose fibre flexibility, the good hygroscopicity such as Modal, antistatic, in earth Can natural decomposition, environmentally safe, wherein no coupling product in tencel fiber, weaving cellulose modal production process, Discharge outside factory without garbage, be environmental protection or green fiber.On the basis of general function, increase some health is had The fiber of the specific function of benefit is also among research and extension is applied, such as anti-bacterial fibre, thermal fiber, uvioresistant Line fiber, far IR fibre, hygroscopic fibre, skin care fiber etc..Differential functional fiber is given birth to The shared at present market share of the fabric that produces, clothing, the product such as bed necessaries gradually increases, but without becoming market Leading products, reason one is that raw material production cost is high, and supply is few;Two is that finished product price is high, belongs to medium-to-high grade Product, consumer is mainly a part relatively booming income crowd;Three is that the accreditation of functional textile is also required to by people One process;Four is that part of functions textile only rests on concept, and actual efficacy is bad, have impact on consumption The enthusiasm that person buys.To this end, the development & production supplier of functional fiber and finished product thereof answers a surname of larger production Power transmission degree, makes great efforts to reduce cost, and guarantees that functional fiber is qualified, makes the product consumption can be by medium income Even low-income earner accepts.
Tencel fiber is that Lenzin company of Austria produces, and this fiber is raw through solvent spinning process with wood pulp for raw material A kind of brand-new fiber produced.It has " comfortableness ", " intensity " of terylene, " aesthetic feeling " of wool fabric of cotton With " sense of touch " of real silk and " the soft pendant that hangs down ", no matter when doing or being wet, the most great toughness.Wet State under, it is that the first wet strength outclass cotton cellulose fibre.Absolutely natural material, adds The manufacturing process of upper environmental protection, allows life style more environmental protection, has catered to the demand of modern consumer, can be rated as Green fiber for 21 century.
Modal (Modal) is the tModified Cellulose Fibers of a kind of koplon, this fiber former Material uses the wood pulps that PiceameyeriRehd. Et Wils., Zelkova schneideriana Hand.-Mazz. are made, and is processed into fiber by special spinning technique.This products material All natural materials, harmless, and can natural decomposition, environmental sound.Weaving cellulose modal is system Becoming wooden serosity to be made through special spinning technique, being a kind of cellulose fibre, so belonging to together as cotton Cellulose fibre.It is to be produced by Lenzin company of Austria.Modal product because itself have good Flexibility and excellent hygroscopicity but the feature of its fabric stiffness difference, be used in the production of underwear the most mostly.Wood The knitted fabric of Dai Er is mainly used in making underwear.But Modal have silvery white gloss, excellent stainability and The feature of bright color after being dyed, it is sufficient to make coat used.Just because of this, Modal is day by day Become the material of coat and decorating cloth thereof.In order to improve the shortcoming of the stiffness difference of pure Modal product, wood generation You can carry out blending with other fiber, and can reach good effect.Modal product is at modern clothing dress ornament On have vast potential for future development.
Quan Jufang is a kind of Novel roller type compact spinning, and it is by using a kind of hollow sieve of major diameter narrow slot type Draw, coordinate the corresponding specially assembly such as part, air draft system to improve air draft system and gather negative pressure utilization ratio, it is achieved negative pressure Improve yarn quality on the premise of the complete compacting effect of air-flow, reduce system energy consumption and machine material consumption.Negative Under the effect of pressure, the air-flow of Nesting Zone periphery produces motion, and under the guiding of airflow guiding device, air-flow passes Groove, is inhaled in central authorities' air draft system by air draught plug-in unit, in the process, and the fibre in Nesting Zone yarn Dimension, under the effect of air-flow, from top to bottom, is gathered to center by edge inside yarn, makes yarn keep closely Straight, and yarn is during surface of roller is fed forward, and its pace is basic and roller speed keeps Unanimously, the misdraft of yarn is reduced.The advantage of Quan Jufang spinning has: 1) resultant yarn comprehensive quality is greatly improved, Compared with common RING SPINNING, while reducing the harmful filoplume of more than 3mm, remain abundant 1,2mm undercoat Plumage, the harmful filoplume of more than 3mm reduces 70%~90%, and 1, the reserved of 2mm undercoat plumage is close to RING SPINNING Yarn, improves Spinning Evenness, and wearability increases by 20%~50%, ingot difference CVb relatively other forms simultaneously Compact spinning is less;2) the complete poly-low cost spinning transformation and the equipment of maintenance.The narrow slot type using a diameter of 50mm is born Pressure hollow roller, to improve air draft system negative pressure collecting effect and utilization ratio, makes its rotating speed halve, effectively simultaneously Extend bearing and gear life, minimizing mechanical breakdown, the machine material consumption being greatly decreased in transformation and system to run Maintenance cost, makes that spinning frame is entirely poly-to be spun improvement cost and be greatly reduced;3) the operating energy resource consumption of system is low, By to the theory analysis of Nesting Zone Flow Field Distribution and the OVERALL OPTIMIZA-TION DESIGN FOR of air draft system matching component, improve Air draft system gathers negative pressure utilization ratio, by the Aided design in air channel to realize the hot a tail wind of air draft system malleation Effective utilization, the operating energy resource consumption of the system that is greatly reduced;4) strong adaptability, complete poly-kind of spinning adapts to Property strong, use narrow slot type structure hollow roller to replace mesh hollow roller, to workshop condition better adaptability, because of This also reduces the cost paid because changing environment (humiture).
The complete poly-tencel A100/ Modal/cotton blending yarn that spins of the present invention is to use Lenzin company of Austria to produce Tencel fiber and weaving cellulose modal and combed long staple cotton blending, and use the complete poly-spinning technique spinning that spins to form. Quan Jufang is compared with grid ring type compact spinning, and its solid carbon dioxide is flat to make moderate progress, and details, slubbing and cotton knot also have Being reduced, it is essentially identical that 3mm is harmful to filoplume reducing effect, and strength is declined slightly, i.e. its resultant yarn comprehensive quality ratio Grid ring type compact spinning is preferable.During spinning, for ensureing the accuracy of various fiber blend ratios, sky Silk A100, weaving cellulose modal individually become bar, then mix also with long-staple cotton yarn.For reducing fiber strength damage, In addition regenerated celulose fibre impurity is less, uses " many at opening and cleaning step tencel A100, weaving cellulose modal Comb is few to be beaten, receive few fall " technological principle, reduce the speed of each hired roughneck, amplification is spaced accordingly;In comb and parallel cotton fibers prior to spinning work In sequence, owing to fibre cohesion is poor, smooth for ensureing into bar, select band to lead the carding machine of cotton apron, and take The technological principle of " jogging speed, the most quantitative ", increases spacing between licker-in and feed plate, reduces licker-in, stannum Woods, the rotating speed of doffer, the simultaneously grasp less than normal of the tension draft in proparea.
Now the development process with regard to the present invention is summarized as follows:
1, spinning material apolegamy
For making resultant yarn have uniform dry and wet strength, by tencel A100 and weaving cellulose modal mix homogeneously, for carrying The spinnability of high microsteping, a certain amount of combed long staple cotton of blending in product, reduce yarn the most to a certain extent simultaneously Line mass.In this product, tencel A100 fiber dimensious selects 1.3D × 38mm, and weaving cellulose modal selects 0.8D × 34mm, cotton fiber selects 137A Xinjiang Long staple cotton.
2, product specification
Tencel A100 fiber 30/ weaving cellulose modal 30/ combed long staple cotton 4080S/2.Blending ratio 30:30:40, 80 English prop up bifilar complete poly-spinning.
3, spinning process route
For guaranteeing blending ratio, tencel A100 fiber, weaving cellulose modal become bar through blowing, carding step respectively, On drawing frame, three roads are carried out the most respectively with combed long staple cotton mixed also after the most also, then through rove, Quan Jufang, network Cylinder, it is twisted line again.
4, front road spinning process is preferred
In opening or cleaning operation, owing in fiber, impurity content is few, use the work of " how comb is beaten less, receive falls less " Skill, reduces the damage to fiber, improves row yielding.In carding step, band is selected to lead the carding machine of cotton apron, The technique taking " jogging speed, light recovery quantitative, many, small tension receiving coil ", suitably amplifies cylinder flat and spaces (8*7*7*7*8");Mixing in doubling step take " small tension receiving coil, light quantitatively, jogging speed, many and close " technique former Then, sliver exporting speed is 200 ms/min, rubber roll employing nylon 6 coating antistatic roller, reduces around roller roller Phenomenon, it is ensured that drive smoothly;Roving Frames takes the technological principle of " the big twist, light quantitative, jogging speed ", Strengthen the twist, reduce ingot speed, use positive rear guide strip roller, reduce back area draft, adjust the arrangement of bar bucket and reduce The misdraft of yarn, it is ensured that the suitable strength of rove, elongation and uniform bar are done.
5, rear road spinning process is preferred
Spinning process uses complete gathering to spin spinning process, twist factor 373, roller gauge 18*38, negative pressure 600Pa, Resultant yarn comprehensive quality is greatly improved, and the harmful filoplume of more than 3mm reduces 90%, and below 3mm filoplume reserved connects Near-ring ingot spinning.Winder take " low velocity, subject matter insured matter, joint is good, shape good " technique, it is ensured that resultant yarn Stablizing of quality.
6, product quality indicator situation
Complete gathering spins tencel A10030/ Modal 30/ cotton 4080S/ 2K line: the single thread ultimate strength coefficient of variation: 5.1%;The line density coefficient of variation: 3%, line density deviation ratio :+1.0%;Strip dry uniformity variant coefficient 9.8%; Blackboard cotton junction grain number: 10/g;Blackboard cotton junction impurity sum: 10/g;Single thread fracture strength 21.4cN/tex. Through city, examination of fibers is checked, and examined index meets GB/T29258-2012 " combing cotton blended spinning true qualities yarn " The requirement of standard Grade A.

Claims (3)

1. the complete poly-Yarn spinning method spinning tencel/Modal/cotton blending yarn, described kind entirely poly-spin tencel/Modal/cotton blending yarn spinning material matching method be: by tencel A100 and weaving cellulose modal mix homogeneously, blending combed long staple cotton in product;
Tencel A100 fiber dimensious selects 1.3D × 38mm;
Weaving cellulose modal selects 0.8D × 34mm;
Cotton fiber selects 137A Xinjiang Long staple cotton;
The content of tencel A100 fiber is not less than 15%;
The step of described Yarn spinning method is: tencel A100 fiber, weaving cellulose modal become bar through opening or cleaning, carding step respectively;The most respectively through the most also;Then on drawing frame, three roads are carried out with combed long staple cotton mixed also;Next through rove, Quan Jufang, winder, it is twisted line again;It is characterized in that
In carding step, band is selected to lead the carding machine of cotton apron,
For tencel A100: cylinder speed 340 ± 15r/min;Licker-in speed is 680 ± 30r/min;Doffer speed is 40 ± 4r/min;
For Modal: cylinder speed 340 ± 15r/min;Licker-in speed is 680 ± 30r/min;Doffer speed is 34 ± 3r/min;
In mixing in doubling step, sliver exporting speed is 200 ± 20 ms/min, rubber roll employing nylon antistatic roller;The quantizing range of tension draft is: drafting multiple is 0.99~1.02 times;
In Roving Frames, twist factor is 72~80, and ingot speed is 800~900r/min;
Use the complete poly-spinning process that spins to realize spinning process, its twist factor 373 ± 10, roller gauge 18mm × 38mm, negative pressure 600 ± 60Pa;
The speed of winder is 750~850m/min.
The most according to claim 1, the complete poly-Yarn spinning method spinning tencel/Modal/cotton blending yarn, is characterized in that
In carding step,
For tencel A100: cylinder speed 340r/min;Licker-in speed is 680r/min;Doffer speed is 40r/min;
For Modal: cylinder speed 340r/min;Licker-in speed is 680r/min;Doffer speed is 34r/min;
In mixing in doubling step, sliver exporting speed is 200 ms/min, rubber roll employing nylon 6 coating antistatic roller;The quantizing range of tension draft be drafting multiple be 1~1.01 times;
In Roving Frames, twist factor is 77, and ingot speed is 850r/min;
Use the complete poly-spinning process that spins to realize spinning process, its twist factor 373, negative pressure 600Pa;
The speed of winder is 800m/min.
The complete poly-Yarn spinning method spinning tencel/Modal/cotton blending yarn the most according to claim 1, it is characterized in that described complete poly-spin tencel/Modal/cotton blending yarn product specification be: blending ratio is: 30:30:40, and 80 English prop up bifilar complete poly-spinning;Wherein, tencel A100 fiber is 30, and weaving cellulose modal is 30, and combed long staple cotton is 40.
CN201510028361.1A 2015-01-20 2015-01-20 Complete gathering spins tencel/Modal/cotton blending yarn and Yarn spinning method thereof Active CN104562344B (en)

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CN105696163A (en) * 2016-04-18 2016-06-22 郑州德惠纺织科技有限公司 Home textile fabric and blending method thereof
CN105908325B (en) * 2016-06-16 2017-07-28 江苏悦达纺织集团有限公司 Compact spinning milk/pearl/tencel shirt fabric and its production method
CN106637635B (en) * 2016-12-30 2018-09-28 利郎(中国)有限公司 One kind not playing white hair digit printing base fabric and preparation method thereof
CN107587251A (en) * 2017-09-18 2018-01-16 江阴芗菲服饰有限公司 A kind of organic llama knitted side material and preparation method thereof

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