CN101481831A - Crimped fibre - Google Patents
Crimped fibre Download PDFInfo
- Publication number
- CN101481831A CN101481831A CNA2009100289129A CN200910028912A CN101481831A CN 101481831 A CN101481831 A CN 101481831A CN A2009100289129 A CNA2009100289129 A CN A2009100289129A CN 200910028912 A CN200910028912 A CN 200910028912A CN 101481831 A CN101481831 A CN 101481831A
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- polyethylene terephthalate
- weight portion
- high shrinkage
- fiber
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- Multicomponent Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses a crimped fiber having permanent crimp effect and bright luster. The crimped fiber is characterized by comprising the following components by weight: 51-95% of a polyethylene terephthalate component and 49-5% of a high shrinkage slice component which are compounded paratactically, the weight of the polyethylene terephthalate component is larger than that of the high shrinkage slice component, the inflation-shrinkage ratio of the high shrinkage slice component to that of the polyethylene terephthalate component is 2:1-7:1, the viscosity range of the high shrinkage slices is 0.55-0.75dl/g and the melting point range of the high shrinkage slices is 210-250 DEG C. The finish fabric of the crimped fiber has the advantages of having wool-like stiffiness, being applicable to conventional textile dyeing and finishing and the like, and can be widely applied to high-end toys, artificial fur and home textile fabrics.
Description
Technical field
The present invention relates to a kind of compound curling fiber.
Background technology
PET is the abbreviation of polyethylene terephthalate, and the PET fiber has advantages such as modulus height, heat resistance is good, mechanical mechanics property plasticity is big, but shortcoming such as the PET fiber has the dyeing poor performance, and elasticity is little.
The high section abbreviation HS-PET that shrinks, its cardinal principle is to introduce copolymerizing modifier in the big molecule of PET, to reduce the crystallization composition in the polyester molecule, increases amorphous regions, finally makes fiber reach high orientation and hangs down crystallization and produce the effect of contraction.Because chemical modification has changed molecular structure, can make good permanent high-shrinkage fibre, be mainly used to spin the long filament of all size, short silk at present, its boiling water shrinkage can be controlled between 20%～70%.
Publication number is to disclose a kind of doughnut in the Chinese patent specification of CN1059719C, be to extrude by the porous spinnerets, make compound hollow stereo crimped fiber after cooling and the stretching, because the cross sectional shape of this fiber is similar circle, back road fabric sheen is flat, and it is a doughnut, and its fabric sofetening does not have stiffness.
Publication number is to disclose a kind of PBT/PET 3-D crimped fiber in the Chinese patent specification of CN1962968A, and this fiber is by PBT and two kinds of polymer composite spinnings of PET, and blow, oil, reel traction, feeding, Sheng thread obtains through ring.The fiber that this method makes has good elasticity, dyeability and heat resistance, but its crimpiness is excessive, and fiber rigidity deficiency can not be used to make the fine hair kind fabric, and because it adopts the similar round cross section, its fabric sheen is gloomy.
Up to the present, a kind of crimped fibre with permanent three-dimensional crimp performance does not also appear on the market.
Summary of the invention
Technical problem to be solved by this invention is: a kind of have permanent curl effect, the beautiful crimped fibre of gloss will be provided.
For solving the problems of the technologies described above, a kind of crimped fibre of the present invention, be characterized in: described fiber comprises the polyethylene terephthalate component and the high section component that shrinks that is combined with each other side by side, wherein, the polyethylene terephthalate weight portion is 51%～95%, high contraction section component weight portion is 49%～5%, the weight portion of polyethylene terephthalate component is greater than the weight portion of height contraction section component, and the harmomegathus of high contraction section component is 2: 1～7: 1 with the size ratio of polyethylene terephthalate harmomegathus; And the described high range of viscosities that shrinks section is 0.55～0.75dl/g, and melting range is 210～250 ℃.
Above the cross sectional shape of described fiber be the triangle that drift angle is similar chamfering arc.
The preparation method of crimped fibre of the present invention mainly comprises the steps:
(1) the high contraction enters spinning manifold after section is extruded, measured by screw rod respectively with the PET section, and further be evenly distributed in the parallel type composite component, and converge the back at the spinnerets place and form spun filament, wherein the spinneret orifice on the spinnerets is shaped as each drift angle curved triangle after chamfering.
(2) the fiber spun filament of coming out from spinnerets through slow cooling, blow side, oil, the spinning drawing-off, reeling obtains this crimped fibre.
Among the present invention, the ester group of normal polyester (polyethylene terephthalate) and phenyl ring form the integral body of conjugation, and the chain group rotates freely, and soft segment can not rotate separately, can only make a common integral body with phenyl ring and vibrate together, so the PET macromolecular chain shows very big rigidity.When the weight portion of normal polyester component shrank the weight portion of section greater than height, the rigidity of normal polyester component played a role in the fiber, make fiber after the road fabric have imitative fleecy stiffness.In addition, the cross sectional shape of this novel crimped fibre is approximate triangle, so fiber is just as being made up of three planes, and it is in the majority that light enters back reflection light, to the beautiful sensation of a kind of color of people.
The invention has the beneficial effects as follows: described crimped fibre has permanent curling effect, beautiful gloss, back road fabric has imitative fleecy stiffness, be suitable for advantages such as conventional textile dyeing and finishing processing, can be widely used on high-grade toy, Fake Furs and the tame textile fabric.
The specific embodiment
Below in conjunction with specific embodiment technology contents of the present invention is further described.But the present invention should not only limit to these embodiment.
Embodiment one
(1) be that 60% weight portion PET section is first raw material A with consumption, enter the first material continuous drying tower, make the normal polyester of moisture content＜40ppm and do section, but the melt extruded that enters first screw extruder becomes the spinning polyester fondant, the melt extruded process of first screw extruder does not have 5 sections thermals treatment zone, the heating-up temperature in each district is 265 ℃, 275 ℃, 285 ℃, 290 ℃, 290 ℃ (five district's screw rods), and this polyester fondant is transported in the spinning manifold (first screw extruder to polyester fondant between the spinning manifold through prefilter, large granular impurity in the polyester fondant is removed), and further be evenly distributed in the parallel type composite component and go, be first component.
(2) be that the high contraction section of 40% weight portion is the second raw material B with consumption, enter the second material continuous drying tower, the height of making moisture content＜50ppm shrinks does section, enter second screw extruder then, but become the height contraction melt of spinning through the melt extruded of second screw extruder, the melt extruded process of second screw extruder does not have 5 sections thermals treatment zone, the heating-up temperature in each district is 255 ℃, 265 ℃, 275 ℃, 280 ℃, 280 ℃ (five district's screw rods), and should shrink melt Conveying in spinning manifold by height, and further be evenly distributed in the parallel type composite component, be second component.The spinneret orifice of the spinnerets in the parallel type composite component be shaped as each drift angle curved triangle after chamfering.
(3) spun filament of moulding in the parallel type composite spining module is evenly extruded, through annealing device, lateral blowing (side-blown wind speed 0.2～1.0m/s, 15～30 ℃ of following cooling formings of lateral blowing temperature), last oil system oils, pass through slinning cabinet, through pre-Network device interlacing first draw-off godet, the second spinning reel drawing-off, winding head is reeled becomes this novel crimped fibre, first, two draw-off godets need not heating, winding speed is 3000～7000m/min, this that processes kind of novel crimped fibre, its fracture strength 〉=2.5CN/dtex, elongation at break between 30～60%, yarn unevenness CV value＜1.2%.
Embodiment 2:
With consumption is that the PET section of 80% weight portion is first raw material, with consumption be the height of 20% weight portion to shrink section be second raw material, all the other are with embodiment 1.
Embodiment 3:
With consumption is that the PET section of 75% weight portion is first raw material, with consumption be the height of 25% weight portion to shrink section be second raw material, all the other are with embodiment 1.
Claims (2)
1, a kind of crimped fibre, it is characterized in that: described fiber comprises the polyethylene terephthalate component and the high section component that shrinks that is combined with each other side by side, wherein, the polyethylene terephthalate weight portion is 51%～95%, high contraction section component weight portion is 49%～5%, the weight portion of polyethylene terephthalate component is greater than the weight portion of height contraction section component, and the harmomegathus of high contraction section component is 2: 1～7: 1 with the size ratio of polyethylene terephthalate harmomegathus; And the described high range of viscosities that shrinks section is 0.55～0.75dl/g, and melting range is 210～250 ℃.
2, a kind of crimped fibre according to claim 1 is characterized in that: the cross sectional shape of described fiber is the triangle that drift angle is similar chamfering arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100289129A CN101481831A (en) | 2009-01-21 | 2009-01-21 | Crimped fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100289129A CN101481831A (en) | 2009-01-21 | 2009-01-21 | Crimped fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101481831A true CN101481831A (en) | 2009-07-15 |
Family
ID=40879117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100289129A Pending CN101481831A (en) | 2009-01-21 | 2009-01-21 | Crimped fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101481831A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590140A (en) * | 2013-10-16 | 2014-02-19 | 扬州广泰化纤有限公司 | Linen-imitative multiple and multi-differential composite short fiber and manufacturing method thereof |
| CN109505032A (en) * | 2018-12-25 | 2019-03-22 | 上海德福伦化纤有限公司 | A kind of core-sheath high-shrinkage polyester staple fibers and preparation method thereof |
-
2009
- 2009-01-21 CN CNA2009100289129A patent/CN101481831A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590140A (en) * | 2013-10-16 | 2014-02-19 | 扬州广泰化纤有限公司 | Linen-imitative multiple and multi-differential composite short fiber and manufacturing method thereof |
| CN103590140B (en) * | 2013-10-16 | 2016-08-10 | 扬州广泰化纤有限公司 | A kind of imitative multiple polyisocyanate of linen look is combined short fibre and manufacture method thereof |
| CN109505032A (en) * | 2018-12-25 | 2019-03-22 | 上海德福伦化纤有限公司 | A kind of core-sheath high-shrinkage polyester staple fibers and preparation method thereof |
| CN109505032B (en) * | 2018-12-25 | 2021-06-25 | 上海德福伦化纤有限公司 | Sheath-core composite high-shrinkage polyester staple fiber and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090715 |