CN101845696A - Method for preparing functional composite woolly elastic fiber - Google Patents
Method for preparing functional composite woolly elastic fiber Download PDFInfo
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- CN101845696A CN101845696A CN201010174971A CN201010174971A CN101845696A CN 101845696 A CN101845696 A CN 101845696A CN 201010174971 A CN201010174971 A CN 201010174971A CN 201010174971 A CN201010174971 A CN 201010174971A CN 101845696 A CN101845696 A CN 101845696A
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- Prior art keywords
- composite
- elastic fiber
- uvioresistant
- yarn
- woolly
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- 239000002131 composite material Substances 0.000 title claims abstract description 63
- 210000004177 elastic tissue Anatomy 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229920000728 polyester Polymers 0.000 claims abstract description 24
- 238000009987 spinning Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 9
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 5
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 4
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 14
- 238000009835 boiling Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004220 aggregation Methods 0.000 claims description 2
- 230000002776 aggregation Effects 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 24
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 22
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000012792 core layer Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 13
- 229920001971 elastomer Polymers 0.000 description 9
- 239000000806 elastomer Substances 0.000 description 9
- 229910010413 TiO 2 Inorganic materials 0.000 description 6
- 238000004043 dyeing Methods 0.000 description 6
- 210000002268 wool Anatomy 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 241001589086 Bellapiscis medius Species 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 229920004933 Terylene® Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a method for preparing functional composite woolly elastic fiber, comprising the following steps: (1) preparing uvioresistant fine-denier polyester pre-oriented yarn (a) with the method of adding uvioresistant masterbatch; (2) carrying out composite spinning with low viscosity polyester (PET) or modified PET and polyethylene terephthalate (PTT) to prepare fully-drawn self-winding composite elastic fiber (b); and (3) stretching and false twisting the uvioresistant fine-denier polyester pre-oriented yarn (a) on a false-twisting texturing machine, converging the uvioresistant fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) in the position of a second roller, combining the uvioresistant the fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) through an interlacing machine, shaping the uvioresistant the fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) through a second heating box, and winding the uvioresistant the fine-denier polyester pre-oriented yarn (a) and the fully-drawn self-winding composite elastic fiber (b) into a composite yarn, contracting the PET/PTT self-winding composite elastic fiber with the elasticity and the contractibility in the core layer of the composite woolly elastic fiber to show the elasticity of the composite yarn, and making the uvioresistant fine-denier polyester pre-oriented yarn to float on the surface layer of the composite yarn to show the uvioresistant performance of the composite yarn. Therefore, the uvioresistant composite woolly elastic fiber is prepared.
Description
Technical field
The invention belongs to a kind of production technology of polyester compound filament, particularly a kind of preparation method of functional composite woolly elastic fiber.
Background technology
At present, the terylene wool-like product emerges in an endless stream on the market, but general Compound Machining based on some conventional raw materials.Along with continuing to bring out of novel material, the development field of multiple multivariant composite fibre is broad more, because PET/PTT is compound from the elastomer that curls, elasticity is good, easy dyeing, powerful high, therefore can develop some NEW TYPE OF COMPOSITE woolly elastic fiber products, simultaneously, because the exploitation that present simulate wool composite fibre is used for subduing lining more, military uniform lining particularly, the uvioresistant performance of therefore giving lining just seems particularly necessary.
Patent Office of the People's Republic of China discloses a kind of woolly elastic fiber manufacture method and with the fabric of made fiber weaving, publication number is CN1537983A, this invents described a kind of elasticity feel of wool fiber, the heart yarn that adopts is a kind of flexible thermoplastic fiber, typing is extended in the heating of drawn twisting mill again, the sheath yarn is conventional polyester or its modification body, and the elongation of sheath yarn is higher than heart yarn 50-150%.The sheath yarn that this patent of invention adopts is a kind of ordinary hot Plasitc fibers, does not give its functional reaching it is carried out false twist texturing, and its elongation is big, therefore adopts the complex yarn of this method preparation not good enough aspect fluffy sense.
Summary of the invention
At present, the terylene wool-like product emerges in an endless stream on the market, but general Compound Machining based on some conventional raw materials, patent of the present invention is at novel material---polyester (PET) is compound from the elastomer that curls (imitative T-400 fiber) with polytrimethylene terephthalate (PTT), proposes a kind of preparation method of functional form woolly elastic fiber in the market.
Technical scheme of the present invention is: a kind of preparation method of functional composite woolly elastic fiber, and its preparation process is as follows:
1) adopt the spinning process that adds the uvioresistant master batch, prepare a kind of uvioresistant fine denier polyester pre-oriented yarn (a), after the drawn false twisting, filament number 0.5-1.0dpf, boiling water shrinkage 2-8%;
2) adopt low adhesive aggregation ester (PET) to carry out composite spinning, prepare a kind of full drawing-off from the composite elastic fiber (b) that curls with polytrimethylene terephthalate (PTT), filament number between 2-5dpf, crimp shrinkage rate 15-50%, boiling water shrinks 15-40%;
3) on false twist texturing machine, (a) carries out draw false twisting with pre-oriented yarn, converge with (b) fiber at two roller places, carry out compound through Network device, again through two hot case typings, obtain a kind of complex yarn behind the coiling, in the product behind the draw false twisting pre-oriented yarn (a) be 0.5-2 with full drawing-off from composite elastic fiber (b) the quality ratio that curls.
Patent utilization PET/PTT of the present invention compound elasticity and shrinkage from the elastomer that curls allow it shrink sandwich layer in composite fibre, embody the elasticity of composite yarn; Fine denier polyester elastic filament with uvioresistant function floats on the top layer of composite yarn, embodies the uvioresistant performance of composite yarn, thereby develops a kind of composite woolly elastic fiber with uvioresistant function.
The uvioresistant master batch that is added, the uvioresistant additive of employing is nano titanium oxide (TiO
2), the mass content of this additive in pre-oriented yarn (a) is 2.5-6%.Nano titanium oxide has excellent shielding ultraviolet rays function, and in the chemical fibre field, it is widely used as delustering agent, catalyst, and in the common fiber product, its content is generally less than 2%.
Full drawing-off is 0.6-1.7 from the quality ratio of composite elastic fiber (b) the two component raw materials that curl, and inherent viscosity (η, the dl/g of unit) is respectively, PET0.45-0.55, PTT1.20-1.40 adopts capillary viscometer to record, 25 ℃ of temperature, phenol-tetrachloroethanes (mass ratio 1:1).
By adopting composite spinning arranged side by side, make through any one route in spinning drawing-off one-step method (FDY) route or spinning drawing-off two-step method (POY-DT) route.The PET/PTT that adopts the FDY one-step method to produce compares spinning drawing-off two-step method from the composite elastic fiber that curls, and it is low to have a production cost, the efficient height, and therefore the advantage of product crimp property excellence is widely adopted.
In the described step 3), winding speed 300-600m/min, a heater temperature are 160-200 ℃, draw ratio DR1.5-1.9, and false twisting is than DY1.40-1.80, and two heater temperatures are 120-170 ℃.
This functional form woolly elastic fiber production difficult point is that both boiling water shrinkages in complex yarn are rationally controlled in the compound preparation from the elastomer that curls of PET/PTT, and raw material compositely proportional etc. make product in use reach needed style.
After dyeing and finishing processing, the raw material behind the draw false twisting (a) floats on the surface, and raw material (b) is distributed in sandwich layer, and with the wool-like fiber of this method preparation, soft, elasticity is good, has anti-ultraviolet function simultaneously.
Compare with general imitation wool product, advantage of the present invention is, the PET/PTT that is distributed in sandwich layer is compound from the elastomer that curls, has elasticity preferably, dyeability is good, powerful high, the raw material (a) after the stretched twisting in top layer simultaneously has anti-ultraviolet function, therefore more has superiority than common imitation wool product.
Description of drawings
Accompanying drawing is a process chart of the present invention;
A is a uvioresistant fine denier polyester pre-oriented yarn (a), and B is that full drawing-off is from the composite elastic fiber (b) that curls; 1 yarn cutter, 2 one rollers, 3 one hot casees, 4 coldplates, 5 false twisters, 6 two rollers, 7 Network devices, 8 two hot casees, 9 three rollers, 10 visit the silk device, 11 oil tankers, 12 compound silks, 13 yarn cutters, 14 0 rollers, 15 visit the silk device.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail.
Embodiment 1: produce with nano-TiO
2Be the fine denier polyester pre-oriented yarn 265D/288f of uvioresistant additive, TiO
2Mass content 3.5%, extension at break 122%, after this pre-oriented yarn drawn twisting, filament number 0.5dpf, boiling water shrinks 3.2%; Adopting inherent viscosity (η) is the PET of 0.5dl/g and the PTT of 1.30dl/g, composite quality ratio 1:1, utilize the polyester FDY draft apparatus, produce 150D/36f, filament number is 4.2dpf, PET/PTT is compound from the elastomer (b) that curls, boiling water shrinkage 20%, crimp shrinkage rate 25%, 8 fonts are fallen in the cross section, carry out compoundly on 33H village field false twist texturing machine, and pre-oriented yarn (a) is successively through a roller, one hot case, coldplate, false twister, carry out draw false twisting, before two rollers, converge with the composite elastic fiber (b) that curls certainly through the full drawing-off of zero passage roller, and after Network device is compound, and the second hot case thermal contraction, again successively through three rollers, visit the silk device, oil tanker is wound into silk at last.Processing technology is as follows: process velocity 500m/min, 180 ℃ of one heater temperatures, draw ratio DR1.68, false twisting is than D/Y1.50, network pressure 0.15mpa, 140 ℃ in two hot casees, make the 300D composite woolly elastic fiber, the pre-oriented yarn in the product after the false twisting (a) is 1 with full drawing-off from the quality ratio of the composite elastic fiber (b) that curls, after dyeing and finishing processing, raw material (a) floats on the top layer, and raw material (b) is distributed in sandwich layer.
Embodiment 2: produce with nano-TiO
2Be the fine denier polyester pre-oriented yarn 265D/288f of uvioresistant additive, TiO
2Mass content 3.5%, extension at break 122%, after this pre-oriented yarn drawn twisting, filament number 0.5dpf, boiling water shrinks 3.2%; Adopting inherent viscosity (η) is the PET of 0.5dl/g and the PTT of 1.30dl/g, composite quality ratio 1:1, utilize the polyester FDY draft apparatus, produce 75D/24f, filament number is 3.1dpf, and PET/PTT is compound from the elastomer (b) that curls, boiling water shrinkage 25%, crimp shrinkage rate 32%, the cross section is 8 fonts.On 33H village field false twist texturing machine, carry out compound, pre-oriented yarn (a) is successively through a roller, a hot case, coldplate, false twister, carry out draw false twisting, before two rollers, converge with the composite elastic fiber (b) that curls certainly through the full drawing-off of zero passage roller, and after Network device is compound, and the second hot case thermal contraction, successively through three rollers, a spy silk device, oil tanker, be wound into silk at last again.Processing technology is as follows: process velocity 450m/min, 175 ℃ of one heater temperatures, draw ratio DR1.68, false twisting is than D/Y1.50, network pressure 0.10mpa, 140 ℃ in two hot casees, make the 225D composite woolly elastic fiber, the pre-oriented yarn in the product after the false twisting (a) is 2 with full drawing-off from the quality ratio of the composite elastic fiber (b) that curls, after dyeing and finishing processing, raw material (a) floats on the top layer, and raw material (b) is distributed in sandwich layer.
Embodiment 3: produce with nano-TiO
2Be the fine denier polyester pre-oriented yarn 125D/144f of uvioresistant additive, TiO
2Mass content 3.5%, extension at break 128%, after this pre-oriented yarn drawn twisting, filament number 0.5dpf, boiling water shrinks 3.5%; Adopting inherent viscosity (η) is 0.5 PET and 1.30 PTT, and composite quality ratio 1:1 utilizes the polyester FDY draft apparatus, produce 100D/24f, filament number is 5dpf, and PET/PTT is compound from the elastomer (b) that curls, boiling water shrinkage 28%, crimp shrinkage rate 37%, the cross section is 8 fonts.On 33H village field false twist texturing machine, carry out compound, pre-oriented yarn (a) is successively through a roller, a hot case, coldplate, false twister, carry out draw false twisting, before two rollers, converge with the composite elastic fiber (b) that curls certainly through the full drawing-off of zero passage roller, and after Network device is compound, and the second hot case thermal contraction, successively through three rollers, a spy silk device, oil tanker, be wound into silk at last again.Processing technology is as follows: process velocity 450m/min, 178 ℃ of one heater temperatures, draw ratio DR1.70, false twisting is than D/Y1.56, network pressure 0.10mpa, 140 ℃ in two hot casees, make the 175D composite woolly elastic fiber, the pre-oriented yarn in the product after the false twisting (a) is 0.75 with full drawing-off from the quality ratio of the composite elastic fiber (b) that curls, after dyeing and finishing processing, raw material (a) floats on the top layer, and raw material (b) is distributed in sandwich layer.
The fabric of this complex yarn exploitation, UVA, UVB transmitance≤3%(standard value≤5%), Ultraviolet Protection Factor UPF 〉=50(standard value is 〉=30).
In the patent of the present invention, the composite elastic heart yarn that is adopted in recombination process, does not need the heating of drawn twisting mill to extend typing by directly preparation of FDY one-step method (or POY-DT two-step method) again, and the elasticity of acquisition is more excellent.Therefore the sheath yarn that patent of the present invention adopted is a kind of thin dawn false twisting low-stretch yarn with uvioresistant function, and its extension at break is suitable with common low-stretch yarn, has advantage at aspects such as feel, functional, physical properties.
The present invention avoids adopting the compound pre-oriented yarn exploitation of PET/PTT simulate wool Resilient product, mainly be because the PET/PTT composite fibre, by the elasticity that draw false twisting obtained, not as elasticity through being obtained after the full drawing-off, therefore adopt the compound pre-oriented yarn exploitation of PET/PTT composite woolly elastic fiber, be difficult to embody the characteristic of PET/PTT composite fibre.In the production process, the boiling water of rationally controlling the PET/PTT composite fibre shrinks, and helps it and shrinks sandwich layer in composite yarn.The weaving of PET/PTT composite elastic fiber, dyeing and finishing processing characteristics are equally applicable to the simulate wool composite elastic yarn with this elastomer exploitation, only need carry out necessary fine setting and get final product.
Claims (5)
1. the preparation method of a functional composite woolly elastic fiber is characterized in that being following steps:
1) by adopting the spinning process that adds the uvioresistant master batch, prepare a kind of uvioresistant fine denier polyester pre-oriented yarn (a), after the drawn false twisting, filament number 0.4-1.0dpf, boiling water shrinkage 2-8%;
2) adopt low adhesive aggregation ester (PET) to carry out composite spinning, prepare a kind of full drawing-off from the composite elastic fiber (b) that curls with polytrimethylene terephthalate (PTT), filament number between 2-5dpf, crimp shrinkage rate 20-50%, boiling water shrinks 15-40%;
3) on false twist texturing machine, (a) carries out draw false twisting with pre-oriented yarn, converge with (b) fiber at two roller places, carry out compound through Network device, again through two hot case typings, obtain a kind of complex yarn behind the coiling, in the product after the draw-teisting pre-oriented yarn (a) be 0.5-2 with full drawing-off from composite elastic fiber (b) the quality ratio that curls.
2. the preparation method of a kind of functional composite woolly elastic fiber according to claim 1 is characterized in that: PET inherent viscosity (η) is 0.45-0.55dl/g, and PTT inherent viscosity (η) is 1.20-1.40dl/g.
3. the preparation method of a kind of functional composite woolly elastic fiber according to claim 1, it is characterized in that: the uvioresistant master batch that is added, the uvioresistant additive of employing is nano titanium oxide (TiO
2), the mass content of this additive in pre-oriented yarn (a) is 2.5-6%.
4. the preparation method of a kind of functional composite woolly elastic fiber according to claim 1, it is characterized in that: full drawing-off is 0.6-1.7 from the quality ratio of composite elastic fiber (b) the two component raw materials that curl, by adopting composite spinning arranged side by side, make through any one route in spinning drawing-off one-step method route or the spinning drawing-off two-step method route.
5. the preparation method of a kind of functional composite woolly elastic fiber according to claim 1, it is characterized in that: in the described step 3), winding speed 300-600m/min, one heater temperature is 160-200 ℃, draw ratio DR1.5-1.9, false twisting is than DY1.40-1.80, and two heater temperatures are 120-170 ℃.
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|---|---|---|---|
| CN 201010174971 CN101845696B (en) | 2010-05-18 | 2010-05-18 | Method for preparing functional composite woolly elastic fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010174971 CN101845696B (en) | 2010-05-18 | 2010-05-18 | Method for preparing functional composite woolly elastic fiber |
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| CN101845696B CN101845696B (en) | 2013-08-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102767011A (en) * | 2012-06-26 | 2012-11-07 | 吴江亚太化纺有限公司 | Polyester/spandex coated yarn used for health underwear |
| CN102767016A (en) * | 2012-06-28 | 2012-11-07 | 吴江亚太化纺有限公司 | Ultraviolet-proof coated yarn for producing sportswear |
| CN102767017A (en) * | 2012-06-28 | 2012-11-07 | 吴江亚太化纺有限公司 | Anti-ultraviolet polyester/spandex-coated yarn |
| CN102767015A (en) * | 2012-06-28 | 2012-11-07 | 吴江亚太化纺有限公司 | Polyester/spandex-coated yarn with fragrance |
| CN102767008A (en) * | 2012-06-28 | 2012-11-07 | 吴江亚太化纺有限公司 | Polyester/spandex coated yarn with far infrared function |
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|---|---|---|---|---|
| CN102767011A (en) * | 2012-06-26 | 2012-11-07 | 吴江亚太化纺有限公司 | Polyester/spandex coated yarn used for health underwear |
| CN102767016A (en) * | 2012-06-28 | 2012-11-07 | 吴江亚太化纺有限公司 | Ultraviolet-proof coated yarn for producing sportswear |
| CN102767017A (en) * | 2012-06-28 | 2012-11-07 | 吴江亚太化纺有限公司 | Anti-ultraviolet polyester/spandex-coated yarn |
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