CN103806155A - Manufacturing method for high-performance composite yarn - Google Patents
Manufacturing method for high-performance composite yarn Download PDFInfo
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- CN103806155A CN103806155A CN201410021165.7A CN201410021165A CN103806155A CN 103806155 A CN103806155 A CN 103806155A CN 201410021165 A CN201410021165 A CN 201410021165A CN 103806155 A CN103806155 A CN 103806155A
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Abstract
The invention relates to a manufacturing method for high-performance composite yarn, and belongs to the technical field of special yarn manufacturing. The manufacturing method comprises the first step of spinning core yarn, the second step of spinning covering yarn and the third step of manufacturing the composite yarn, wherein the covering yarn is composed of a matrix fiber which is polypropylene, the core yarn is composed of a matrix fiber and a reinforced fiber, and the reinforced fiber is a mixture of one or more of a basalt fiber or a glass fiber or an aramid fiber or polyethylene. According to the high-performance composite yarn obtained by the adoption of the manufacturing method, the defect that the mechanical property of a single fiber is poor is overcome, the composite yarn is smooth in surface, the amount of yarn hairiness is small, the advantages of each fiber can be brought into full play, the fibers can be mutually complemented, and the high-performance composite yarn has the excellent performance which the single fiber does not have.
Description
Technical field
The present invention relates to a kind of manufacture method of high-performance composite yarn, belong to specialty yarn preparing technical field.
Background technology
Along with scientific and technical progress, fabrics for industrial use new material constantly presents development trend, and purposes is also constantly expanded to multiple fields.The development of science and technology has promoted renewal and the progress of material, and new material is the key in develop high-tech field.Especially at field of textiles, the requirement of material is more and more caused to people's concern.
Recombination line is made to two dimension or three-dimensional, unidirectional or multidirectional weaving prefabricated component by woven, knitting or knitting skill, can make high performance sandwich, thermoplastic fibre is compounded in yarn simultaneously, later stage making thermoplastic sandwich, have high tenacity and impact resistance good, the ability of anti-chemistry and environmental corrosion is strong, and production efficiency is high, can carry out secondary operations, realize and repeat processing regenerated utilization.Polypropylene fibre based thermoplastic sandwich had both had good mechanical property and excellent impact strength, have again that quality is light, cost is low, moulding process is simple and recyclable, be beneficial to the advantages such as environmental protection, can solve preferably performance, environmental protection and price problem that current sandwich exists, there is good development prospect.But conventional composite yarn normally adopts and and mode carry out compoundly, the yarn cohesive force that this mode obtains is poor, easily disperses, and fluffing in morning, ruptures, and affects the appearance property of product and follow-up weaving.
Summary of the invention
In order to overcome the present situation that existing composite yarn cohesive force is poor, mechanical performance is not good, first the present invention is to provide the high-performance composite yarn that a kind of cohesive force, structure are compacted.
For achieving the above object, the technical scheme that the present invention takes is as follows:
High-performance composite yarn, includes and twists with the fingers bag yarn and non-twist heart yarn, and bag yarn is wrapped in heart yarn skin with non-twist and the mode of closing, and heart yarn is (2-6) with the ratio of bag yarn: (8-4).
Further, as preferably:
Described bag yarn is made up of matrix fiber, and heart yarn is made up of matrix fiber and fortifying fibre.
Described matrix fiber is polypropylene fibre, and line density is 0.5-1.5dtex, and fracture strength is 3.5-4cN/dtex, and elongation at break is 25-40%; Fortifying fibre is basalt fibre, glass fibre, aramid fiber or polyethylene, and the line density of fortifying fibre is 600-850tex, and TENSILE STRENGTH is 550-750MPa, and elongation strain is 1.5-2.5%.
On described composite yarn, have nexus, this nexus is consistent with the twist on bag yarn, for strengthening the cohesiveness of composite yarn.
Secondly, the present invention also provides a kind of preparation method of the high-performance composite yarn that possesses above-mentioned feature.
A preparation method for high-performance composite yarn, comprises the steps:
(1) heart yarn spinning: part matrix fiber and fortifying fibre are mixed in proportion, form non-twist heart yarn;
(2) bag yarn spinning: remainder matrix fiber is twisted to processing, be formed with and twist with the fingers bag yarn;
(3) composite yarn preparation: have the bag of sth. made by twisting yarn to wrap yarn the non-twist heart yarn of step (1) gained and step (2) gained, form the composite yarn of outer bag yarn, internal layer heart yarn.
Further, as preferably:
In step (1), matrix fiber and fortifying fibre mix ratio for (3-7): (7-3), to mix concrete mode be non-twist and close, and evenly mixes.
In step (2), having the twist of sth. made by twisting bag yarn is 40-100 sth. made by twisting/10cm, can be that Z-type or S type are twisted with the fingers.
In step (3), bag yarn is non-twist and closes, and adopts the form of jet network, utilizes jet-stream wind effect, controls whiff pressure, by entangled to each other two kinds of monofilament, forms periodic network point.As preferably, whiff pressure is 0.2-0.5MPa, warp tension 0.27N.
Wherein, matrix fiber is polypropylene fibre, and line density is 0.5-1.5dtex, and fracture strength is 3.5-4cN/dtex, and elongation at break is 25-40%; Fortifying fibre is one or more the mixing in basalt fibre, glass fibre, aramid fiber or polyethylene, and matrix fiber is divided into two parts, and a part is used to form heart yarn together with fortifying fibre, and another part forms bag yarn.
Adopt technique scheme to carry out the preparation of high-performance composite yarn, there is following beneficial effect:
1. adopt the form of jet network to wrap yarn, utilize jet-stream wind effect, by entangled to each other two kinds of monofilament, having of preparation twisted with the fingers to the compound of bag yarn and non-twist heart yarn, preparation technology is simple, easy to operate, overcome the not good defect of Single Fiber mechanical property, bag yarn density is low, intensity is high, stretching property is good by force, and fortifying fibre in heart yarn has good rigidity and intensity, but elastic modelling quantity is low, the composite yarn smooth surface that bag yarn and heart yarn prepare, filoplume is less, can give full play to the advantage of each component fibre, make to make up for each other's deficiencies and learn from each other between fiber, give Single Fiber not available excellent properties.
Fiber hybrid structure mainly contain evenly mix, interlaminar hybrid, interlayer mix, sandwich mixes, combination mixes, braided fabric mixes with staple fiber and polytype hybrid composite such as mixes, in technique scheme, the promiscuous mode that matrix fiber and fortifying fibre adopt is non-twist and closes, evenly mix, give full play to the advantage of various fibers, realize between fiber good and bad complementary.
3. adopt in the composite yarn of such scheme formation, have the bag of sth. made by twisting yarn outside, non-twist heart yarn, interior, has improved the weavability of yarn.Bag yarn looping, at heart yarn skin, plays a protective role to internal layer heart yarn, and the damage of avoiding post-production process to rub to fiber and composite yarn has improved the manufacturability of yarn.
4. on the composite yarn of heart yarn and the formation of bag yarn, form periodic network point, this nexus is consistent with the twist (sth. made by twisting spacing) on bag yarn, nexus and twist acting in conjunction, play the effect that strengthens composite yarn cohesiveness and cohesive force, be conducive to strengthen the overall mechanical properties of composite yarn, composite yarn smooth surface, filoplume is few.
The present invention is take polypropylene fibre as matrix fiber, basalt fibre, glass fibre etc. are fortifying fibre, by different ratio and the promiscuous modes of mixing, acquisition has the high-performance composite yarn of said structure feature, overcome the shortcoming of Single Fiber, bring into play synergy, strengthen mechanical property and the exterior quality of network combined line; Adopt the form of jet network, utilize jet-stream wind effect, by entangled to each other two kinds of monofilament, form periodic network point, preparation technology is simple, easy to operate; Make two kinds of fibre fractionations in network combined line there is different mass ratioes, realize the quality complementation between fiber, show different mechanical properties and appearance characteristics thereby be beneficial to recombination line, be applicable to multiple occasion practical application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high-performance composite yarn prepared of the present invention;
Fig. 2 is preparation principle schematic diagram of the present invention;
Fig. 3 is the enlarged diagram at A position in Fig. 2.
Number in the figure: 1. bag yarn; 2. heart yarn; 3. nexus; 4. bobbin; 5. tensioner; 6. roller; 7. twizzle; 8. yarn-guide tube; 9. hollow spindle; 10. envelope curve pipe; 11. add throw-crook; 12. delivery rollers; 13. lever jacks; 14. groove drums; 15. fancy spools.
Wherein, what have filling is fortifying fibre, and packless is matrix fiber.
The specific embodiment
Embodiment 1
The present embodiment high-performance composite yarn, in conjunction with Fig. 1, includes and twists with the fingers bag yarn 1 and non-twist heart yarn 2, bag yarn 1 is wrapped in heart yarn 2 skins with non-twist and the mode of closing, on composite yarn, have nexus 3, (the sth. made by twisting spacing in Fig. 1 is d) consistent, for strengthening the cohesiveness of composite yarn with the twist of bag on yarn 1 for this nexus 3.Wherein, fortifying fibre is basalt fibre, and fineness is 330tex; Matrix fiber is polypropylene fibre, and fineness is 100tex; The mass ratio of fortifying fibre and matrix fiber is 3.3:1.By two kinds fibre untwisted and close, wherein:
(1) fortifying fibre of the matrix fiber of 0.3 parts by mass and 3.3 parts by mass is mixed, promiscuous mode is non-twist and closes, and evenly mixes, and forms non-twist heart yarn;
(2) matrix fiber of 0.7 part of residue is twisted, be formed with and twist with the fingers bag yarn, the twist of bag yarn is 40 sth. made by twisting/10cm, twists with the fingers to being Z-type;
(3) utilize the processing method of jet network, control whiff pressure is 0.36MPa, and warp tension 0.27N, by entangled to each other two kinds of monofilament, is formed with basalt/polypropylene fibre high-performance recombination line of periodic network point.
Specifically, in conjunction with Fig. 2, from bobbin 4, unwinding is out as heart yarn 2 for the yarn that mixes of (3.3 parts) basalt fibre/(0.3 part) polypropylene fibre, by spring leaf tensioner 5, spring leaf tensioner 5 makes heart yarn feeding even tension, heart yarn is again through carrying roller 6 and the twizzle 7 of heart yarn, the detailed construction that imports hollow spindle 9(importing process by yarn-guide tube 8 is referring to Fig. 3), (0.7 part) polypropylene fibre bag yarn 1 on envelope curve pipe 10 is brought hollow spindle 9 into together with heart yarn 2, envelope curve pipe 10 rotates together with hollow spindle 9, bag yarn 1 one circle circles are wrapped in heart yarn 2 outsides, it is rear moving that bag yarn 1 and heart yarn 2 enter hollow spindle 9, the twist on bag yarn 1 makes both produce false twisting, by adding after throw-crook 11, false twisting is decorporated, due to the rotation of hollow spindle 9, heart yarn 2 does not form any twist, and bag yarn 1 forms the true looping of twisting with the fingers in heart yarn 2 outsides, from adding throw-crook 11 cladded yarn out by delivery roller 12 and lever jack 13, be wound on fancy spool 15 by groove drum 14, what obtain is exactly high-performance composite yarn of the present invention.
The high-performance composite yarn that adopts said structure, complex yarn density is 800-2000tex, and tensile strength can reach 25-50MPa, and its advantage is as follows:
1. adopt the form of jet network to wrap yarn, utilize jet-stream wind effect, by entangled to each other two kinds of monofilament, having of preparation twisted with the fingers to the compound of bag yarn and non-twist heart yarn, preparation technology is simple, easy to operate, overcome the not good defect of Single Fiber mechanical property, bag yarn 1 density is low, intensity is high, stretching property is good by force, and fortifying fibre in heart yarn 2 has good rigidity and intensity, but elastic modelling quantity is low, the composite yarn smooth surface that bag yarn 1 and heart yarn 2 prepare, filoplume is less, can give full play to the advantage of each component fibre, make to make up for each other's deficiencies and learn from each other between fiber, give Single Fiber not available excellent properties.
Fiber hybrid structure mainly contain evenly mix, interlaminar hybrid, interlayer mix, sandwich mixes, combination mixes, braided fabric mixes with staple fiber and polytype hybrid composite such as mixes, in technique scheme, the promiscuous mode that matrix fiber and fortifying fibre adopt is non-twist and closes, evenly mix, give full play to the advantage of various fibers, realize between fiber good and bad complementary.
3. adopt in the composite yarn of such scheme formation, have the bag of sth. made by twisting yarn 1 outside, non-twist heart yarn 2, interior, has improved the weavability of yarn.Bag yarn 1 looping, at heart yarn 2 skins, plays a protective role to internal layer heart yarn 2, and the damage of avoiding post-production process to rub to fiber and composite yarn has improved the manufacturability of yarn.
4. on the composite yarn forming at heart yarn 2 and bag yarn 1, form periodic network point 3, (the sth. made by twisting spacing in Fig. 1 is d) consistent with the twist of bag on yarn 1 for this nexus 3, nexus 3 and twist acting in conjunction, play the effect that strengthens composite yarn cohesiveness and cohesive force, be conducive to strengthen the overall mechanical properties of composite yarn, composite yarn smooth surface, filoplume is few.
The present invention is take polypropylene fibre as matrix fiber, basalt fibre is fortifying fibre, by different ratio and the promiscuous modes of mixing, acquisition line density is the high-performance composite yarn of 800-2000tex, tensile strength 25-50MPa, overcome the shortcoming of Single Fiber, bring into play synergy, strengthen mechanical property and the exterior quality of network combined line; Adopt the form of jet network, utilize jet-stream wind effect, by entangled to each other two kinds of monofilament, form periodic network point, preparation technology is simple, easy to operate; Make two kinds of fibre fractionations in network combined line there is different mass ratioes, realize the quality complementation between fiber, show different mechanical properties and appearance characteristics thereby be beneficial to recombination line, be applicable to multiple occasion practical application.By the fineness of basalt fibre and polypropylene fibre in change recombination line, also can obtain the network combined line of basalt/polypropylene fibre of different quality ratio, show different mechanical properties and appearance characteristics, adapt to different occasion practical applications.
Embodiment 2
In composite yarn prepared by the present embodiment, bag yarn 1 is polypropylene fibre, and matrix fiber is polypropylene fibre, the fineness of polypropylene fiber is 100tex, and fortifying fibre is glass fibre, and the fineness of glass fibre is 270tex, the mass ratio of glass fibre and polypropylene fibre is 2.7: 1, by two kinds fibre untwisted and close, wherein:
(1) fortifying fibre of the matrix fiber of 0.25 parts by mass and 2.7 parts by mass is mixed, promiscuous mode is non-twist and closes, and evenly mixes, and forms non-twist heart yarn;
(2) matrix fiber of 0.75 part of residue is twisted, be formed with and twist with the fingers bag yarn, the twist of bag yarn is 50 sth. made by twisting/10cm, twists with the fingers to being Z-type;
(3) utilize the processing method of jet network, control whiff pressure is 0.24MPa, and warp tension is 0.27N, by entangled to each other two kinds of monofilament, is formed with glass/polypropylene fibre high-performance recombination line of periodic network point.
Its process principle identical with embodiment 1 (participating in Fig. 2 and Fig. 3)
The present invention is take polypropylene fibre as matrix fiber, glass fibre is fortifying fibre, by different ratio and the promiscuous modes of mixing, acquisition line density is the high-performance composite yarn of 800-2000tex, tensile strength 25-50MPa, overcome the shortcoming of Single Fiber, bring into play synergy, strengthen mechanical property and the exterior quality of network combined line; Adopt the form of jet network, utilize jet-stream wind effect, by entangled to each other two kinds of monofilament, form periodic network point, preparation technology is simple, easy to operate; Make two kinds of fibre fractionations in network combined line there is different mass ratioes, realize the quality complementation between fiber, show different mechanical properties and appearance characteristics thereby be beneficial to recombination line, be applicable to multiple occasion practical application.By the fineness of glass fibre and polypropylene fibre in change recombination line, also can obtain the network combined line of glass/polypropylene fibre of different quality ratio, show different mechanical properties and appearance characteristics, adapt to different occasion practical applications.
Above content is the further description of provided technical scheme being done in conjunction with the preferred embodiment of the present invention; can not assert that the concrete enforcement of the present invention is confined to above-mentioned these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. high-performance composite yarn, is characterized in that: include and twist with the fingers bag yarn and non-twist heart yarn, bag yarn is wrapped in heart yarn skin with non-twist and the mode of closing, and heart yarn is (2-6) with the ratio of bag yarn: (8-4).
2. high-performance composite yarn as claimed in claim 1, is characterized in that: described bag yarn is made up of matrix fiber, and heart yarn is made up of matrix fiber and fortifying fibre.
3. high-performance composite yarn as claimed in claim 2, is characterized in that: described matrix fiber is polypropylene fibre, and line density is 0.5-1.5dtex, and fracture strength is 3.5-4cN/dtex, and elongation at break is 25-40%; Fortifying fibre is basalt fibre, glass fibre, aramid fiber or polyethylene.
4. high-performance composite yarn as claimed in claim 1, is characterized in that: on described composite yarn, have nexus, this nexus is consistent with the twist on bag yarn, for strengthening the cohesiveness of composite yarn.
5. the preparation method of the high-performance composite yarn as described in claim 1-4 any one, is characterized in that, comprises the steps:
(1) heart yarn spinning: part matrix fiber and fortifying fibre are mixed in proportion, form non-twist heart yarn;
(2) bag yarn spinning: remainder matrix fiber is twisted to processing, be formed with and twist with the fingers bag yarn;
(3) composite yarn preparation: have the bag of sth. made by twisting yarn to wrap yarn the non-twist heart yarn of step (1) gained and step (2) gained, form the composite yarn of outer bag yarn, internal layer heart yarn.
6. the preparation method of a kind of high-performance composite yarn as claimed in claim 5, is characterized in that: in step (1), matrix fiber and fortifying fibre mix ratio for (3-7): (7-3), to mix concrete mode be non-twist and close, and evenly mixes.
7. the preparation method of a kind of high-performance composite yarn as claimed in claim 5, is characterized in that: in step (2), having the twist of sth. made by twisting bag yarn is 40-100 sth. made by twisting/10cm, is that Z-type or S type are twisted with the fingers.
8. the preparation method of a kind of high-performance composite yarn as claimed in claim 5, is characterized in that: in step (3), bag yarn is non-twist and closes, and adopts the form of jet network, utilize jet-stream wind effect, control whiff pressure, by entangled to each other two kinds of monofilament, form periodic network point.
9. the preparation method of a kind of high-performance composite yarn as claimed in claim 8, is characterized in that: described whiff pressure is 0.2-0.5MPa, the tension force 0.27N in entanglement process on yarn.
10. the preparation method of a kind of high-performance composite yarn as claimed in claim 5, is characterized in that: described matrix fiber is polypropylene fibre, and line density is 0.5-1.5dtex, and fracture strength is 3.5-4cN/dtex, and elongation at break is 25-40%; Fortifying fibre is one or more in basalt fibre, glass fibre, aramid fiber or polyethylene.
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Cited By (8)
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| CN104088054A (en) * | 2014-07-04 | 2014-10-08 | 浙江理工大学 | Preparation method for high-performance composite line for polypropylene-based composite material |
| CN104109924A (en) * | 2014-06-27 | 2014-10-22 | 中原工学院 | Basalt fiber chenille yarn |
| CN104131392A (en) * | 2014-06-27 | 2014-11-05 | 中原工学院 | Basalt fiber chenille woven fabric |
| CN104178862A (en) * | 2014-07-15 | 2014-12-03 | 张荣祝 | Superfine denier basalt fiber product and production technology thereof |
| CN104790081A (en) * | 2015-04-14 | 2015-07-22 | 上海方纶新材料科技有限公司 | Composite cord for tire |
| CN105002617A (en) * | 2015-06-08 | 2015-10-28 | 东台市华阳玻纤有限责任公司 | Sealing braided base material for foodstuff processing machinery and method for preparing same |
| CN105088452A (en) * | 2015-06-16 | 2015-11-25 | 长兴虹波纺织有限公司 | Terylene composite fiber and preparation method thereof |
| CN105274699A (en) * | 2014-06-27 | 2016-01-27 | 中原工学院 | Basalt fiber chenille circular weaving machine weaving filter bag |
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Effective date of registration: 20170510 Address after: Keqiao District of Zhejiang city in Shaoxing province 312000 Xialv town is Wang Zheng village quay Applicant after: Prospective Shaoxing Chemical Fiber Co. Ltd. Address before: Shaoxing County, Zhejiang province 312000 Shaoxing Xialv town Yue Zheng Village Applicant before: Shaoxing Super Special Synthetic Fibre Co., Ltd. |
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Effective date of registration: 20201119 Address after: 215228, No. two, No. 1188, West Ring Road, Shengze Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Shengze science and Technology Pioneer Park Development Co.,Ltd. Address before: Keqiao District of Zhejiang city in Shaoxing province 312000 Xialv town is Wang Zheng village quay Patentee before: SHAOXING SUPER SPECIAL SYNTHETIC FIBRE Co.,Ltd. |