CN109281020A - A kind of production technology of low twist yarn - Google Patents

A kind of production technology of low twist yarn Download PDF

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Publication number
CN109281020A
CN109281020A CN201811377749.2A CN201811377749A CN109281020A CN 109281020 A CN109281020 A CN 109281020A CN 201811377749 A CN201811377749 A CN 201811377749A CN 109281020 A CN109281020 A CN 109281020A
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CN
China
Prior art keywords
yarn
spinning
production technology
cotton
technology according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811377749.2A
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Chinese (zh)
Inventor
易升水
李迎辉
钟连强
凌海娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhonghua Group Co Ltd
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Zhonghua Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhonghua Group Co Ltd filed Critical Zhonghua Group Co Ltd
Priority to CN201811377749.2A priority Critical patent/CN109281020A/en
Publication of CN109281020A publication Critical patent/CN109281020A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist

Abstract

The invention discloses a kind of production technologies of low twist yarn, it include select cotton process, fore-spinning and after spin process, wherein, the fore-spinning includes cotton cleaning process, carding step, mixing in doubling step and Roving Frames, and spinning process after described includes spinning process and winding procedure.Production technology of the invention, by the vacuum and low temperature yarn steaming setting treatment of selection control to raw material, the distributing rationally of fore-spinning, the false twisting processing of spinning process and spun yarn fruit, the problems such as can effectively solving yarn twist in the prior art caused weaving broken end increase after reducing, quality index deteriorates, spinning difficulty.

Description

A kind of production technology of low twist yarn
Technical field
The present invention relates to a kind of production technologies of low twist yarn, belong to spinning manufacturing field.
Background technique
With the improvement of living standards, requirement of the people to the snugness of fit of clothing is also higher and higher.Wherein, to cloth The pursuit of " flexibility " is a big theme.In order to realize " flexibility ", other than commonly carrying out soft treatment to cloth, industry The interior twist to yarn also proposed new requirement: obtain having good " flexibility " using the alap yarn of the twist Cloth.In general, the twist factor of knitting cotton is 280-360, woven with the twist factor of cotton is 290-430, and is worked as When the twist factor of cotton is lower than 280, belong to special low-twist yarn, according to current ring spinning process, in spun yarn work The dynamic tenacity of sequence spinning section, low-twist yarn sharply declines, and is greater than its dynamic so as to cause the dynamic tension of spinning section yarn Strongly, Yarn break is in turn resulted in, it is difficult to continue to produce.In addition, after the twist of yarn reduces, yarn strength, filoplume etc. Quality index can all deteriorate.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of production technologies of low twist yarn, can solve Certainly caused weaving broken end increases yarn twist after reducing, quality index deteriorates, spins the problems such as difficult in the prior art.
To achieve the above object, the invention adopts the following technical scheme:
A kind of production technology of low twist yarn comprising select cotton process, fore-spinning and after spin process, wherein it is described Fore-spinning includes cotton cleaning process, carding step, mixing in doubling step and Roving Frames, spun after described process include spinning process and Winding procedure.
Preferably: described to select in cotton process, the mic value of selected cotton is 3.6-4.0, upper half mean length For 29mm-31mm, uniformity 83.5-85%, short fiber content≤15%, breaking strength >=29.5cn/tex.
Preferably: in the carding step, licker-in revolving speed is 930rpm, and cylinder revolving speed is 420rpm, and weight of card sliver is 5g/m, sliver exporting speed 180m/min, cover plate speed 280mm/min.
Preferably: the fore-spinning further includes combing process, and the combing process, which uses, to be retreated to cotton, and long to cotton Degree is 4.7mm/ pincers, linters rate 18%.
Preferably: the mixing in doubling step is one of mixing in doubling step or two mixing in doubling step, wherein the two draftings work Sequence includes head and process and end and process, and the head is simultaneously in process, and total draft multiple is 5.8 times, back zone drafting multiple 1.7 Times, in the end and process, total draft multiple is 6.6 times, and back zone drafting multiple is 1.25 times.
Preferably: the Roving Frames use four roller fly frames, and back zone back zone ratch is configured to 65mm, after Area's drafting multiple is 1.2 times, roving twist factor 122.
Preferably: in the spinning process, back zone ratch is 60mm-65mm, back zone drafting multiple 1.15- 1.2 again.
Preferably: in the spinning process, increasing false-twisting device, and the false twisting in the spinning section of front roller output The linear velocity and front roller output line speed ratio of device are 8-10 times.
Preferably: in the winding procedure, Yarn tension is than normal yarn decline 15%, winding speed 850- 1100m/min。
Preferably: before carrying out winding procedure, vacuum and low temperature yarn steaming setting treatment first being carried out to spun yarn fruit.
The beneficial effects of the present invention are, using undertwisted yarn production technology of the invention, under same spun yarn spindle speed, preceding sieve The output speed of drawing greatly improves, and compared with normal yarn, spun yarn yield is able to ascend 15-20%, unit ton yarn cost and energy Consumption declines to a great extent.In addition, the undertwisted yarn produced by technique of the invention, when processing woven fabric, suction color, midge are good, Color fastness is high, guarantee same color and above by rate in the case where can effectively save dyestuff and slurry, to reach rear process Clean manufacturing, energy-saving effect.In addition, the undertwisted yarn that the present invention obtains is when processing looped fabric, due under yarn twist Drop, the internal stress of yarn are substantially reduced, so as to effectively solve the big problem in the industry of looped fabric slope, the cloth cover woven by it Have the characteristics that soft, cloth cover is thick and solid, cotton sense is strong, good luster, woven fabric slope is small, lines is clear, can be widely applied to ox Young fabric, woven fabric and knitting fabric.
Specific embodiment
A specific embodiment of the invention is described further below.
The present invention provides a kind of production technologies of low-twist yarn, mainly include select cotton process, fore-spinning and After spin process, specifically:
It is described to select cotton process when selecting cotton, pay the utmost attention to the indexs such as fibre fineness, fibre length and uniformity.With The yarn for spinning the normal twist is compared, and for low twist yarn of the invention when distributing cotton, fibre fineness needs partially thin control, to increase yarn Number of fiber in cross section, improve that fiber is shown in embrace and power so that interfibrous armful and power are not after yarn twist reduces It can decline to a great extent, the broken end of yarn can be reduced in spinning process, and can ensure that yarn strength.Similarly, in fibre length and whole It is preferential to select the raw cotton that fibre length is long, uniformity is good and short fine rate is low in terms of Qi Du.Particularly, it is selected in cotton in of the invention, Preferentially select mic value for 3.6-4.0, upper half mean length 29mm-31mm, uniformity 83.5-85%, short fiber content ≤ 15%, breaking strength >=29.5cn/tex cotton.
The fore-spinning includes cotton cleaning process, carding step, mixing in doubling step and Roving Frames, in which: the blowing Reduce the speed of shredding hired roughneck in process as far as possible, in the carding step, licker-in revolving speed is preferably 930rpm, and cylinder revolving speed is preferred For 420rpm, weight of card sliver 5g/m, the preferred 180m/min of sliver exporting speed, and suitably accelerate cover plate speed, in comb of the invention In cotton process, the preferred 280mm/min of cover plate speed, to increase the exclusion of staple fiber.It is when producing combed cotton yarn, then of the invention Fore-spinning may also include the combing process between carding step and mixing in doubling step.Specifically, the combing process is using retrogressing To cotton, and 4.7mm/ pincers will be reduced to cotton length, and cotton noils rate is increased to 18% to exclude staple fiber as far as possible.Institute Stating mixing in doubling step can be used one of mixing in doubling step or two mixing in doubling step, specifically, one of drafting can be used for combed cotton yarn Process selects autoleveller draw frame, selects lesser first break draft multiple optimization item dry;And it then can be used two for general carded cotton yarn Road mixing in doubling step, including head and and end and process, wherein the head and process use small total draft multiple and big back zone Drafting multiple, and big total draft multiple and small back zone drafting multiple are then used in end and process, to improve stretching for fiber The straight depth of parallelism, and then promote yarn strength.Specifically, in head of the invention and process, total draft multiple is 5.8 times, back zone Drafting multiple is 1.7 times;And in end and process, total draft multiple is 6.6 times, and back zone drafting multiple is 1.25 times.It is described Roving Frames use four roller fly frames, to reduce rove filoplume.Meanwhile using big back area draft gauge, in the roller of back zone The heart is away from 65mm is configured to, and back zone drafting multiple is 1.2 times and roving twist factor is 122.
It includes spinning process and winding procedure that process is spun after described;Wherein: biggish back zone is used in the spinning process Drawing-off gauge and lesser back zone drafting multiple, specifically, in the present invention, back zone ratch is configured to 60mm- 65mm, back zone drafting multiple are configured to 1.15-1.2 times, and after being reduced due to yarn twist, the yarn diameter with yarn count is than normal yarn Line is slightly very much, and therefore, the number of wire loop more greatly than normal yarn number, just can ensure that balloon shape to reduce broken end and hair Plumage, in addition, in order to ensure the yarn path between wire loop and rings, rings should select conical surface steel as far as possible after yarn diameter is thicker Neck, also, in order to guarantee that resultant yarn filoplume and yarn strength, the spinning process preferably use the spinning structure of SEILE textile.Especially Ground also adds false twisting processing in spinning process of the invention, specifically, in the spinning section of front roller output, increases false twisting dress It sets, in the case where yarn actual twist reduces, the false twisting by increasing spun yarn spinning section handles strong to improve the dynamic of yarn Power, to solve after yarn actual twist reduces, spinning section dynamic tenacity is not enough and the technical issues of lead to spinning end breaking.It is described False-twisting device can be used such as the device in CN106948040A, its structure that details are not described herein, in addition, the line of the false-twisting device Speed and front roller output line speed ratio are 8-10 times.In the winding procedure, since yarn twist is low, doff should be suitably reduced Tension, in the present invention, Yarn tension suitably reduce winding speed than normal yarn decline 15% or so, excellent in the present invention 850-1100m/min is selected, untwisting air pressure and time when suitably turning winder connector down, the appropriate negative pressure for reducing winder change, and look for Big suction nozzle is suitably tuned up with cheese distance when head.Particularly, since low-twist yarn fuzzy yarn can increased, in order to subtract Clearly to the shearing number of filoplume yarn, the present invention preferably first uses spun yarn fruit the filoplume increasing degree and winder electricity of few winding procedure Bobbin-winding machine is gone up again after the sizing of vacuum and low temperature yarn steaming, so that spun yarn crosses regain increase, filoplume docile, and then significantly reduces network The filoplume increasing degree and filoplume of cylinder process shear number, reduce winder connector.
Present invention production technology as described above is distributed rationally, carefully by selection control to raw material, fore-spinning The false twisting processing of yarn process and the vacuum and low temperature yarn steaming setting treatment of spun yarn fruit etc. are thin after efficiently solving yarn twist and reducing The technical problems such as yarn breakage can not produce and yarn qualities index deteriorates.
The present invention has passed through preferred embodiment and has carried out detailed explanation.However, by studying carefully above, to each The variation and increase of embodiment are also apparent to those of ordinary skill in the art.It is intended that it is all this A little variations and increase have been fallen in the protection scope of the claims in the present invention.Term used herein is only to implement to specific Example is illustrated, and is not intended to and is limited the invention.Unless otherwise defined, all terms used herein (including Technical terms and scientific terms) it is identical as the understanding of those skilled in the art of the art.It is any to this product into Capable modification and improvement, the substitution and use of similar or close substance, belong to the invention patent in the scope of the patents or scope Protection scope.

Claims (10)

1. a kind of production technology of low twist yarn, it is characterised in that: including select cotton process, fore-spinning and after spin process, In, the fore-spinning includes cotton cleaning process, carding step, mixing in doubling step and Roving Frames, and it includes thin that process is spun after described Yarn process and winding procedure.
2. production technology according to claim 1, it is characterised in that: described to select in cotton process, mark of selected cotton Grand value is 3.6-4.0, upper half mean length 29mm-31mm, uniformity 83.5-85%, short fiber content≤15%, is broken by force Degree >=29.5cn/tex.
3. production technology according to claim 1, it is characterised in that: in the carding step, licker-in revolving speed is 930rpm, Cylinder revolving speed is 420rpm, weight of card sliver 5g/m, sliver exporting speed 180m/min, cover plate speed 280mm/min.
4. production technology according to claim 1, it is characterised in that: the fore-spinning further includes combing process, described Combing process is 4.7mm/ pincers, linters rate 18% to cotton, and to cotton length using retrogressing.
5. production technology according to claim 1, it is characterised in that: the mixing in doubling step is one of mixing in doubling step or two Mixing in doubling step, wherein two mixing in doubling step includes head simultaneously process and end and process, and the head is simultaneously in process, and total draft is again Number is 5.8 times, and back zone drafting multiple is 1.7 times, and in the end and process, total draft multiple is 6.6 times, and back zone drafting multiple is 1.25 again.
6. production technology according to claim 1, it is characterised in that: the Roving Frames use four roller fly frames, after Area back zone ratch is configured to 65mm, and back zone drafting multiple is 1.2 times, roving twist factor 122.
7. production technology according to claim 1, it is characterised in that: in the spinning process, back zone ratch is 60mm-65mm, back zone drafting multiple are 1.15-1.2 times.
8. production technology according to claim 1 or claim 7, it is characterised in that: in the spinning process, exported in front roller Spinning section increase false-twisting device, and the linear velocity of the false-twisting device and front roller output line speed ratio are 8-10 times.
9. production technology according to claim 1, it is characterised in that: in the winding procedure, Yarn tension is than normal yarn Line decline 15%, winding speed 850-1100m/min.
10. according to claim 1 or production technology described in 9, it is characterised in that: before carrying out winding procedure, first to spun yarn fruit Carry out vacuum and low temperature yarn steaming setting treatment.
CN201811377749.2A 2018-11-19 2018-11-19 A kind of production technology of low twist yarn Pending CN109281020A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110373774A (en) * 2019-08-19 2019-10-25 河北宏润新型面料有限公司 It is a kind of to turn round pacify spinning bamboo fibre and long wool cotton blend production technology
CN111498600A (en) * 2020-04-28 2020-08-07 张家港扬子纺纱有限公司 Efficient and convenient spinning and steaming integrated process
CN113106601A (en) * 2021-04-08 2021-07-13 佛山市南海区纬隆纺织有限公司 Jean fabric production process
CN113417039A (en) * 2021-07-16 2021-09-21 忠华集团有限公司 Cotton yarn free of fiber falling and preparation method

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CN103397419A (en) * 2013-08-12 2013-11-20 南通双弘纺织有限公司 Low-twist high-strength yarn and spinning technology thereof
CN103498229A (en) * 2013-10-10 2014-01-08 江南大学 Low-twist, high-strength and little-fuzz yarn production method and yarn
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CN103498229A (en) * 2013-10-10 2014-01-08 江南大学 Low-twist, high-strength and little-fuzz yarn production method and yarn
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110373774A (en) * 2019-08-19 2019-10-25 河北宏润新型面料有限公司 It is a kind of to turn round pacify spinning bamboo fibre and long wool cotton blend production technology
CN110373774B (en) * 2019-08-19 2022-03-18 河北宏润新型面料有限公司 Production process of twisted-seiulus bamboo fiber and long stapled cotton blended yarn
CN111498600A (en) * 2020-04-28 2020-08-07 张家港扬子纺纱有限公司 Efficient and convenient spinning and steaming integrated process
CN113106601A (en) * 2021-04-08 2021-07-13 佛山市南海区纬隆纺织有限公司 Jean fabric production process
CN113417039A (en) * 2021-07-16 2021-09-21 忠华集团有限公司 Cotton yarn free of fiber falling and preparation method
CN113417039B (en) * 2021-07-16 2022-05-17 忠华集团有限公司 Cotton yarn free of fiber falling and preparation method

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