CN102358971A - Non-equal convergent point high-cashmere-coverage-rate three-axis compound spinning process - Google Patents
Non-equal convergent point high-cashmere-coverage-rate three-axis compound spinning process Download PDFInfo
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Abstract
The invention relates to a non-equal convergent point high-cashmere-coverage-rate three-axis compound spinning process, belonging to the technical field of multi-axis compound spinning. In the non-equal convergent point high-cashmere-coverage-rate three-axis compound spinning process, a driving tension disk for controlling the tension of endless tows and two positioning devices for controlling the positions of cashmere fiber strands and wool fiber strands respectively are arranged on an ordinary ring spinning machine, and cashmere fiber strands, wool fiber strands and endless tows are fed in a three-axis form and are compounded at non-equal convergent points to form high-cashmere-coverage-rate compound yarns. The process is suitable for high cashmere coverage rate, high-count cashmere compound yarns which are enhanced by compounding, have high spinnability and keep the cashmere style are obtained, and rare hair fiber strands can be applied to high-coverage-rate three-axis compound spinning of rare animal hair fibers instead of cashmere fiber strands to obtain yarns for high-grade fabrics.
Description
Technical field
Three that the present invention relates to non-high coverage rate such as cashmere such as Rendezvous Point such as grade is composite spinning technology, belongs to multiple shafting composite spinning technical field.
Background technology
Cashmere is the extraordinary rare animal fiber of generally acknowledging, its product is soft, sliding glutinous, and style is elegant, noble, but the rolling up of cashmere fiber, short, easy glide and low-intensity, makes its processing difficulties, cost is high, row yielding is low and easy damaged.Thereby not only influence processing, and influence its quality, especially concerning top grade, frivolous high-count cashmere pin, woven textiles, the low brute force of a high pure-wool cashmere yarn, difficult spinning and difficulty are weaved, the outstanding problem that yield poorly, end product quality is prone to fluctuation.The low-intensity of cashmere and spinning difficulty, with and distinctive quality, rare and high value, caused blending.Though blending can improve its spinnability and increase yarn strength, the quality and the appearance style that often reduce cashmere product because of blending do not reach application results.
The yarn of the relevant cashmere method acquisition through blending mostly at present is like the patent of invention (application number: the 200810196177) blended yarn of cotton, the rabbit hair, three kinds of fibers of cashmere of Zhu Qindi etc.; Composite yarn (the application number: 200610167939) of people's such as Qin Hongbin patent of invention outer cashmere; The patent of invention RING SPINNING cashmere of Li Hanli etc., wool, silk blending yarn (application number: 201010226539); The patent of invention of the Zheng Guoyan (patent No.: 200610103792) bamboo carbon dacron fiber, cashmere fiber, long-staple cotton fiber blended yarn and preparation method thereof; The thin special terylene of Modal//cashmere yarn spinning performance has been discussed in the merchant David in the hair fiber crops science and technology third phase in 2010; It is compound spinning that Wang Weiya is two at 2006 the 6th different in nature terylene cashmere of interim abnormity multicomponent composite yarns of wool spinning science and technology; Mainly be that method through blending obtains three component cashmere yarn.These patents and article all are to adopt three kinds of fiber blends by a certain percentage and spin cashmere yarn, are the non-composite spinnings of blending.The composite spinning of relevant cashmere is like a kind of cashmere complex yarn (patent No.: 200420107099) of the utility model patent of Chen Xiuying; Or only limit to and the mode of strand also non-composite spinning.All inequality with principle of the present invention and method.
The old little jasmines of inventor herein etc. have discussed in the 9th phase the 28th of textile journal volume that cashmere/wool/terylene three components are compound to be spun and the resultant yarn mechanical property; Adopted the method for three systems, and studied of the influence of three component spinning process in that textile technology 2008 the 9th is interim trigonum and yarn formation structure.And the technology of patent of the present invention, mechanism with gather principle with this report device, technology and to gather principle all different.
Summary of the invention
The purpose of this invention is to provide a kind of be suitable for high cashmere coverage rate non-, to wait three of Rendezvous Point cashmere high coverage rate be composite spinning technology.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade is composite spinning technology; It is characterized in that: being employed in increases active tension dish and two locators that are used for controlling cashmere yarn (cashmere fiber yarn) and wool yarn (wool fibre yarn) position respectively that are used for controlling endless tow tension force on the common ring spinning frame; Implementing cashmere yarn, wool yarn and endless tow is feeding and the compound mode of Rendezvous Point such as non-with three, forms the composite yarn of high cashmere coverage rate.
Three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade is composite spinning technology, it is characterized in that concrete steps are:
1) preparation of ring spinning frame: on common ring spinning frame, increase an active tension dish that is used for controlling endless tow tension force; Increase by first locator 4 that is used for controlling cashmere yarn position, increase by second locator 5 that is used for controlling wool yarn position; Active tension dish 6 is installed in the top of the last front roller of front roller 7, and contacts with the roller compact of going forward of front roller and by the transmission of last front roller friction-driven; Endless tow is driven the jaw of feeding front roller around the last front roller of this front roller by last front roller friction;
2) get the rear roller feeding of cashmere rove bar, wool slubbing bar, after drawing-off, form and stretch parallel cashmere yarn 1 and wool yarn 2, feed the jaw of front rollers 7 respectively by first locator 4 and second locator, 5 location by ring spinning frame; Endless tow 3 grips conveying through the friction of active tension dish 6, directly between cashmere yarn 1 and wool yarn 2, feeds the jaw of front roller 7, and forming three is feeding;
3) when described cashmere yarn 1, wool yarn 2 and endless tow 3 during from the jaw output of front roller; Make wool yarn 2 at first compound at the jaw place of front roller with the non-compound mode of convergent point that waits with endless tow 3; Form in endless tow 3 is stretched in, wool yarn 2 is outside pine is wound in; And then compound with the cashmere yarn 1 of the jaw that goes out front roller, form cashmere and be coated over the yarn surface morely, and tangle the composite yarn 9 of the cashmere high coverage rate of obvolvent each other with wool fibre again.
Said cashmere high coverage rate is meant that the cashmere coverage rates on said composite yarn 9 surfaces are higher than even far above the cashmere mass ratio of actual composite spinning.Described cashmere high coverage rate is a cashmere outsourcing coverage rate, reaches 40%-100%.
Spacing 1-25mm between described cashmere yarn 1 and the endless tow 3 (preferred 2-20mm), the spacing between wool yarn 2 and the endless tow 3 is 1-20mm (preferred 1-15mm).
Described cashmere yarn 1 and wool yarn 2 are the natural tension force of spinning, drawing; The tension force of endless tow 3 is 1-50cN (preferred 4-30cN), and wherein the tension force of endless tow 3 will be higher than described natural tension force.Wherein, because the drafting tension of staple fibre yarn depends on factors such as interfibrous cohesive force, draw ratio, yarn line density, draft speed, so be called nature tension force.Because the cohesive force of wool is big than cashmere, so when other factors were identical or close, the natural tension force of cashmere yarn 1 was less than the natural tension force of wool yarn 2 in theory.And the tension force of the relative endless tow 3 of natural tension force is little.
The mass ratio of cashmere yarn 1, wool yarn 2, endless tow 3 is 10-80: 10-80: 10-50, is preferably 30-60: 10-40: 10-30, the summation of mass ratio must be 100.
Described endless tow 3 is meant polyester filament, chinlon filament, silk long filament, polypropylene filament yarn, polyvinyl long filament or viscose filament yarn.
Described three systems are meant that cashmere yarn 1 is one, and with natural tension force feeding, looping is at outermost layer; Wool yarn 2 is one, and with natural tension force feeding, looping is positioned at the cashmere inboard on endless tow 3, and tangles each other with cashmere; Endless tow 3 is one, and to be higher than nature tension force feeding, itself becomes yarn core, and is positioned at the internal layer of composite yarn with compound wool yarn 2 earlier.
Because wool yarn 2 has relatively slightly high natural tension force, thus can shift to an earlier date and well with endless tow 3 formation loopings; Cashmere yarn 1 has lower slightly relatively natural tension force to form looping with AB section composite yarn 8 with lagging behind, can increase the obvolvent of cashmere to AB section composite yarn 8 thus effectively, avoids layering.The high-tension of described endless tow 3 is meant by active tension dish 6 trench diameter less than active tension dish 6 cylindrical contact diameters, the high-tension that the formed linear velocity of seeing endless tow 3 off produces less than the linear velocity of front roller feeding.This high-tension will cause the spiral looping of 2 pairs of endless tows 3 of wool yarn and increase the fluctuating and the surface area of AB section composite yarn 8, help gripping wool yarn 2.
Three of non-high coverage rates such as cashmere such as Rendezvous Point such as grade are that the certain intervals in the composite spinning is meant cashmere yarn 1 and the spacing of wool yarn 2 with endless tow 3.Described position is meant endless tow 3 central, and cashmere yarn 1 and wool yarn 2 are in endless tow 3 both sides.
Describedly non-ly wait that convergent point is compound to be meant that at first Rendezvous Point be compound by wool yarn 2 and endless tow 3, second Rendezvous Point be by the cashmere yarn 1 and first Rendezvous Point after composite yarn section compound.
The rotation of described active tension dish 6 be by with the contact friction of front roller, rotated by front roller and to be driven.
The cashmere of non-Rendezvous Point such as grade coats ratio outward and can adjust through one of three kinds of modes or combination: the composite quality ratio that 1. is adjustment cashmere yarn, wool yarn, endless tow three; When 2. being the output of adjustment front roller, cashmere yarn, wool yarn and endless tow three's relative position is to increase outer clad ratio; 3. be adjustment cashmere yarn, wool yarn, endless tow three's tension force, increase the coverage rate and the triangular cohesive force of cashmere.And preferentially,, adjust the outer clad ratio of cashmere to adjust 2. and 3., promptly to adjust relative position and tension force.
Three is that cashmere yarn 1 in the composite spinning also can change other rare hair fibers into, and like rabbit suede, yakwool, ermine suede, Arctic fox suede or superfine wool yarn, or wherein any proportioning of two kinds is mixed yarn.Used wool yarn is constant basically, also uses rabbit hair yarn.Described endless tow 3 is meant terylene, polyamide fibre, silk, polypropylene fibre, polyvinyl or viscose filament yarn etc.
This technology not only can be used for the high coverage rate composite spinning of cashmere; Can be composite spinning also through three of high coverage rates that are used for rare hair fibrids such as yakwool, rabbit suede, ermine suede, Arctic fox suede or superfine wool with rare hair fibrid yarn replacement cashmere yarn 1, and as the yarn of using of grade textiles.
Beneficial effect of the present invention is: 1. only on common fine spining machine, increasing an active tension dish and two locators, just to have solved three of cashmere high coverage rates be composite spinning, and method is simple and direct, practical; 2. through the relative position and the tension force of three of adjustment cashmere yarn, wool yarn and endless tows, can obtain the height ratio cashmere appearance style of low ratio cashmere content (10%-60%) and the cashmere composite yarn of feel (outer clad ratio reaches 40%-100%) effectively; This technology is suitable for high cashmere coverage rate, to obtain both compound enhancing and to improve spinnability, keeps the high-count cashmere composite yarn of cashmere style again.3. can improve intensity, spinnability and the spinning row yielding of cashmere yarn, reduce the yarn defect; 4. this composite spinning can be extrapolated to and treasure the hair fibrid; Three of high coverage rates like the rare hair fiber of yakwool, rabbit suede, ermine suede, Arctic fox suede, superfine wool etc. are composite spinning, and the acquisition of the high-grade textile product of the rare hair fiber of this type.
Description of drawings:
Fig. 1 is that three of the non-grade of the present invention Rendezvous Point cashmere high coverage rate are the schematic diagram of composite spinning technology.
Fig. 2 is that three of the non-grade of the present invention Rendezvous Point cashmere high coverage rate are the side-looking schematic diagram of composite spinning technology.
Fig. 3 is the cashmere/wool/terylene composite yarn microphoto of cashmere high coverage rate of the present invention.
Among the figure: 1-cashmere yarn; 2-wool yarn; The 3-endless tow; 4-first locator; 5-second locator; 6-active tension dish; The 7-front roller; 8-AB section composite yarn, wherein A is first Rendezvous Point; B is second Rendezvous Point; 9-high coverage rate cashmere composite yarn.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade is composite spinning technology; Be employed in and increase active tension dish and two locators that are used for controlling cashmere yarn and wool yarn position respectively that are used for controlling endless tow tension force on the common ring spinning frame; Implementing cashmere yarn, wool yarn and endless tow is feeding and the compound mode of Rendezvous Point such as non-with three, forms the composite yarn of high cashmere coverage rate.Its concrete steps are:
On common ring spinning frame, increase an active tension dish that is used for controlling endless tow tension force earlier, increase by first locator 4 that is used for controlling cashmere yarn position, increase by second locator 5 that is used for controlling wool yarn position; Active tension dish 6 is installed in the top of the last front roller of front roller 7, and contacts with the roller compact of going forward of front roller and by the transmission of last front roller friction-driven, endless tow is driven the jaw of feeding front roller around the last front roller of this front roller by last front roller friction.
Rove bar, the wool slubbing bar of getting cashmere or other rare hair fibers are again fed by the rear roller of ring spinning frame; After drawing-off, form and stretch parallel cashmere yarn 1 and wool yarn 2, feed the jaw of front rollers 7 respectively by first locator 4 and second locator, 5 location; Endless tow 3 grips conveying through the friction of active tension dish 6, directly between cashmere yarn 1 and wool yarn 2, feeds the jaw of front roller 7, and forming three is feeding.
When described cashmere yarn 1, wool yarn 2 and endless tow 3 during from the jaw output of front roller; Endless tow 3 is at first compound at the first Rendezvous Point A with wool yarn 2; In formation endless tow 3 was stretched in, wool yarn 2 is the long AB section composite yarn 8 outside of spiral looping stably; And then compound with the cashmere yarn 1 of the jaw that goes out front roller at second Rendezvous Point, form cashmere and be coated over the yarn surface morely, and tangle the cashmere high coverage rate composite yarn 9 of obvolvent each other with wool fibre again.
Three according to above-mentioned non-high coverage rate such as cashmere such as Rendezvous Point such as grade is that composite spinning technology is carried out composite spinning; The fiber of selected each system and composite quality ratio thereof; Composite spinning technological parameter, and the coverage rate of the high coverage rate composite yarn 9 that is spun into, it is said to see embodiment 1～7 for details.
The cashmere yarn of spinning high coverage rate is chosen cashmere rove, wool slubbing and three kinds of fibrous raw materials of polyester filament and is carried out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 1 that the mass ratio of cashmere/wool/terylene is 50/35/15, three.Hence one can see that, through cashmere yarn, wool yarn and the distance of polyester filament three between centers and the control of thread-tension, can spin the cashmere yarn of high coverage rate, promptly with the composite yarn that spins 94% cashmere coverage rate of 50% mass ratio.
The coverage rate of table 1 spinning tension and position technological parameter and cashmere/wool/terylene composite yarn
The cashmere yarn of spinning high coverage rate is chosen cashmere rove, wool slubbing and three kinds of fibrous raw materials of chinlon filament and is carried out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 2 that cashmere/wool/polyamide fibre mass ratio is 55/30/15, three.Hence one can see that, through cashmere yarn, wool yarn and the distance of chinlon filament three between centers and the control of thread-tension, can spin the cashmere yarn of high coverage rate, promptly with the composite yarn that spins 100% cashmere coverage rate of 55% mass ratio.
The coverage rate of table 2 spinning tension and position technological parameter and cashmere/wool/polyamide fibre composite yarn
The rabbit suede yarn of spinning high coverage rate is chosen rabbit suede rove, wool slubbing and three kinds of fibrous raw materials of polyvinyl long filament and is carried out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 3 that rabbit suede/wool/polyvinyl mass ratio is 20/60/20, three.Hence one can see that, through rabbit suede yarn, wool yarn and the distance of polyvinyl long filament three between centers and the control of thread-tension, can spin the rabbit suede yarn of high coverage rate, promptly with the composite yarn that spins 70% rabbit suede coverage rate of 20% mass ratio.
The coverage rate of table 3 spinning tension and position technological parameter and rabbit suede/wool/polyvinyl composite yarn
The yak yarn of spinning high coverage rate is chosen yakwool rove, wool slubbing and three kinds of fibrous raw materials of viscose filament yarn and is carried out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 4 that yakwool/wool/viscose quality ratio is 30/50/20, three.Hence one can see that, through yakwool yarn, wool yarn and the distance of viscose filament yarn three between centers and the control of thread-tension, can spin the yak yarn of high coverage rate, promptly with the composite yarn that spins 91% yakwool coverage rate of 30% mass ratio.
The coverage rate of table 4 spinning tension and position technological parameter and yakwool/wool/viscose glue composite yarn
Superfine wool (the 12.8 μ m) yarn of spinning high coverage rate is chosen superfine wool rove, wool slubbing and three kinds of fibrous raw materials of chinlon filament and is carried out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 5 that superfine wool/wool/polyamide fibre mass ratio is 60/20/20, three.Hence one can see that, through superfine wool yarn, wool yarn and the distance of chinlon filament three between centers and the control of thread-tension, can spin the superfine wool yarn of high coverage rate, promptly with the fine wool composite yarn that spins 100% coverage rate of 60% mass ratio.
The coverage rate of table 5 spinning tension and position technological parameter and superfine wool/wool/polyamide fibre composite yarn
The cashmere and the ermine suede yarn of spinning high coverage rate, rove, wool slubbing and three kinds of fibrous raw materials of silk of choosing cashmere and the blending of ermine suede carry out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 6 that cashmere and ermine suede/wool/silk quality ratio are 35/35/30, three.Hence one can see that, through cashmere and ermine suede yarn, wool yarn and the distance of silk three between centers and the control of thread-tension, can spin the cashmere and the ermine suede yarn of high coverage rate, promptly with the composite yarn that spins 92% cashmere and ermine suede coverage rate of 35% mass ratio.
The coverage rate of table 6 spinning tension and position technological parameter and cashmere and ermine suede/wool/silk composite yarn
The ermine suede and the Arctic fox suede yarn of spinning high coverage rate, rove, rabbit hair rove and three kinds of fibrous raw materials of chinlon filament of choosing ermine suede and the blending of Arctic fox suede carry out composite spinning.The compositely proportional of three kinds of fibers is: it is that the coverage rate of composite spinning tension force and position technological parameter and institute's yarn is as shown in table 5 that ermine suede and Arctic fox suede/rabbit suede/polyamide fibre mass ratio is 80/10/10, three.Hence one can see that; Through yakwool yarn, rabbit suede yarn and the distance of chinlon filament three between centers and the control of thread-tension; Can spin the ermine suede and the Arctic fox suede yarn of high coverage rate, promptly with the composite yarn that spins 97～100% ermine suedes and Arctic fox suede coverage rate of 80% mass ratio.
The coverage rate of table 7 spinning tension and position technological parameter and yakwool/rabbit suede/polyamide fibre composite yarn
Claims (7)
1. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade is composite spinning technology; It is characterized in that: being employed in increases active tension dish and two locators that are used for controlling cashmere yarn and wool yarn position respectively that are used for controlling endless tow tension force on the common ring spinning frame; Implementing cashmere yarn, wool yarn and endless tow is feeding and the compound mode of Rendezvous Point such as non-with three, forms composite yarn.
2. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade according to claim 1 is composite spinning technology, it is characterized in that concrete steps are:
1) preparation of ring spinning frame: on common ring spinning frame, increase an active tension dish that is used for controlling endless tow tension force; Increase by first locator (4) that is used for controlling cashmere yarn position, increase by second locator (5) that is used for controlling wool yarn position; Active tension dish (6) is installed in the top of the last front roller of front roller (7), and contacts with the roller compact of going forward of front roller and by the transmission of last front roller friction-driven;
2) get the rear roller feeding of cashmere rove bar, wool slubbing bar, after drawing-off, form and stretch parallel cashmere yarn (1) and wool yarn (2), locate the jaw that feeds front roller (7) by first locator (4) and second locator (5) respectively by ring spinning frame; Endless tow (3) grips conveying through the friction of active tension dish (6), directly between cashmere yarn (1) and wool yarn (2), feeds the jaw of front roller (7), and forming three is feeding;
3) when described cashmere yarn (1), wool yarn (2) and endless tow (3) during from the output of the jaw of front roller; Make wool yarn (2) at first compound at the jaw place of front roller with the non-compound mode of convergent point that waits with endless tow (3); Form endless tow (3) interior, outside wool yarn (2) is wound in; And then compound with the cashmere yarn (1) of the jaw that goes out front roller, form cashmere and be coated over the yarn surface, and tangle the composite yarn (9) of obvolvent each other with wool fibre again.
3. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade according to claim 2 is composite spinning technology, and it is characterized in that: the spacing 1-25mm between cashmere yarn (1) and the endless tow (3), the spacing between wool yarn (2) and the endless tow (3) is 1-20mm.
4. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade according to claim 2 is composite spinning technology, and it is characterized in that: cashmere yarn (1) and wool yarn (2) are the natural tension force of spinning, drawing; The tension force of endless tow (3) is 1-50cN.
5. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade according to claim 2 is composite spinning technology, and it is characterized in that: the mass ratio of cashmere yarn (1), wool yarn (2), endless tow (3) is 10-80: 10-80: 10-50.
6. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade according to claim 2 is composite spinning technology, and it is characterized in that: described endless tow (3) is meant polyester filament, chinlon filament, silk long filament, polypropylene filament yarn, polyvinyl long filament or viscose filament yarn.
7. three of non-high coverage rate such as cashmere such as Rendezvous Point such as grade according to claim 2 is composite spinning technology; It is characterized in that this technology not only can be used for the high coverage rate composite spinning of cashmere; Can be composite spinning also through three of high coverage rates that are used for rare hair fibrids such as yakwool, rabbit suede, ermine suede, Arctic fox suede or superfine wool with rare hair fibrid yarn replacement cashmere yarn (1), and as the yarn of using of grade textiles.
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| CN102704120A (en) * | 2012-06-26 | 2012-10-03 | 东华大学 | Smooth composite spinning mechanism and method of short fiber whisker strip clamped by double filaments via unequal tension |
| CN104294440A (en) * | 2013-07-15 | 2015-01-21 | 东丽纤维研究所（中国）有限公司 | Bilayer structure yarn and production method and application thereof |
| CN105369420A (en) * | 2015-10-08 | 2016-03-02 | 江南大学 | Production method for cashmere/yakwool covering yarn |
| CN106757610A (en) * | 2016-12-26 | 2017-05-31 | 西藏圣信工贸有限公司 | A kind of yak down yarn and preparation method thereof |
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| CN1563534A (en) * | 2004-04-09 | 2005-01-12 | 广东春燕纺织有限公司 | Terylene wrapped core wire and fabrication method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704120A (en) * | 2012-06-26 | 2012-10-03 | 东华大学 | Smooth composite spinning mechanism and method of short fiber whisker strip clamped by double filaments via unequal tension |
| CN104294440A (en) * | 2013-07-15 | 2015-01-21 | 东丽纤维研究所（中国）有限公司 | Bilayer structure yarn and production method and application thereof |
| CN105369420A (en) * | 2015-10-08 | 2016-03-02 | 江南大学 | Production method for cashmere/yakwool covering yarn |
| CN105369420B (en) * | 2015-10-08 | 2017-08-25 | 浙江昊能科技有限公司 | A kind of production method of cashmere/yakwool covering yarn |
| CN106757610A (en) * | 2016-12-26 | 2017-05-31 | 西藏圣信工贸有限公司 | A kind of yak down yarn and preparation method thereof |
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| CN102358971B (en) | 2014-03-26 |
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