CN101158057A - Core-skin type composite fiber and production method thereof - Google Patents
Core-skin type composite fiber and production method thereof Download PDFInfo
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- CN101158057A CN101158057A CNA2007101876573A CN200710187657A CN101158057A CN 101158057 A CN101158057 A CN 101158057A CN A2007101876573 A CNA2007101876573 A CN A2007101876573A CN 200710187657 A CN200710187657 A CN 200710187657A CN 101158057 A CN101158057 A CN 101158057A
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Abstract
The invention discloses sheath-core complex fiber and a corresponding production method, wherein, sheath is PTT fiber while core is PET fiber and is fully enclosed in sheath, weight of which accounts for 30% to 70% of total weight of the complex fiber; a density range of finished fiber is 87dtex to 300dtex. The fiber of the invention combines the characteristics of polyester fiber and PTT fiber with proper strength and soft handle and can obtain bright color while dyeing in low temperature. The production cost of the fiber lies between PET fiber and PTT fiber and is lower than common PTT fiber.
Description
One, technical field
The present invention relates to a kind of core-sheath compound fibre and production method thereof, more particularly relating to a kind of is sandwich layer with PET, and PTT is the core-sheath compound fibre and the production method thereof of cortex.
Two, background technology
The PTT full name is a polytrimethylene terephthalate, as a kind of brand-new polyester material, is one of up-to-date in the world chemical fibre new material.
Because the special molecular structure of polytrimethylene terephthalate (PTT) has brought up its low modulus and excellent elasticity response rate, make the PTT lining have unique soft feel, fluffy and whippy performance.The PTT macromolecular chain has helicoidal structure, thereby makes PTT have good resilience.Because strand gets the special construction form, it passes through to get acting in conjunction between strand self and the strand, thereby has given the rebound performance of PTT excellence.
The volume resistivity of PTT, induced voltage and discharge all are lower than PET and PA6 the half-life, in antistatic requirement is not very high purposes, can substitute terylene and polyamide fibre fully.And, show that PTT has antistatic preferably new capability in induced voltage and discharge half-life and cotton approaching.
The PTT antifouling property is with the oil repellent of fiber and easily soil release characteristics is relevant.The chemical constitution of macromolecular chain is very big to its effect of surface tension, and methylene is that the polymer of odd number is lower than the critical surface tension of even number, so ptt fiber has pollution resistance preferably.
The PTT fabric has good anti-fluffing and anti-pilling performance, this is because the ptt fiber excellent elasticity has been slowed down the active force that fiber is hit, the breaks of fiber have under external force been reduced, add excellent tensile elasticity and recovery characteristic, make ptt fiber that good antifatigue damage be arranged, the PTT antistatic property is good in addition, and everything makes that PTT anti-fluffing and anti-pilling performance is very good.
Ptt fiber has a series of considerable advantages, has become leading synthetic fiber development priority of future generation.But each fiber all has its defective, and ptt fiber is no exception.Its intensity is good not as PET, and rigidity is obviously not enough, and the pure textile fabric feel of some PTT is too soft so that shape-retaining ability is too poor.With PET and PTT both sides' advantages, utilize external good hand of ptt fiber and dyeability, the brute force and the rigidity of PET fiber inherence make to have more the body bone when lining possesses soft feel in addition.And the PET and the PTT difference on spinning technique that are all polyester series are little, and compatibility is good, can carry out the processing of this type of core-skin type compound silk on existing equipment.
Three, summary of the invention
It is the core-sheath compound fibre of raw material with PTT and PET that one of purpose of the present invention provides a kind of.
It is the production method of the core-sheath compound fibre of raw material with PTT and PET that two of the object of the invention provides a kind of.
These and other purpose of the present invention will further embody and set forth by following detailed description and explanation.
The objective of the invention is to realize by following technical proposals:
Core-sheath compound fibre of the present invention is made up of cortex and sandwich layer, comprises following physical property:
Monofilament linear density (dtex) 1.67-1 2.5
Line density coefficient of variation CV value (%)≤1.0
Fracture strength (CN/dtex) 〉=4.0
Elongation at break (%) 150 ± 8.0
Fracture strength coefficient of variation CV value (%)≤8.0.
Further, core-sheath compound fibre of the present invention is made up of cortex and sandwich layer, also comprises following physical property:
Line density deviation ratio (%) ± 3.0
Extension at break coefficient of variation CV value (%)≤8.0
Yarn unevenness CV value (%)≤1.6
Oil content (%) 0.45 ± 0.1.
Core-sheath compound fibre of the present invention is made up of cortex and sandwich layer, and its mediopellis weight accounts for the 30%-70% of composite fibre gross weight, and described sandwich layer is conventional PET polyester, and described cortex is the PTT polyester, and sandwich layer is completely wrapped in the cortex.Finished fiber line density scope is 87dtex-300dtex.
The production method of core-sheath compound fibre of the present invention, comprise drying, melt filteration and spinning step, in drying steps, earlier two kinds of different polyester are carried out drying and remove moisture, the PTT polyester slice adopts the pre-crystallization continuous drying of ebullated bed, the heated drying air temperature is 140 ℃, blast 0.1Mpa, dew-point temperature≤-60 ℃, be 8-10 hour drying time, and dry back section moisture content is controlled at below the 20ppm; The PET polyester slice adopts the pre-crystallization continuous drying of common pulsed-bed, and the heated drying air temperature is 160 ℃, blast 0.1Mpa, and dew-point temperature≤-60 ℃, be 4-6 hour drying time, dry back section moisture content is controlled at below the 25ppm.Then that drying is good PTT section and PET cut into slices respectively and to carry out extrusion spinning by separately screw extruder, the PTT screw extruder divides five district's temperature controls, one district temperature 235-240 ℃, two district temperature 240-255 ℃, three district temperature 245-260 ℃, four district temperature 255-265 ℃, five district temperature 258-265 ℃; The PET screw extruder divides five district's temperature controls, a district temperature 268-285 ℃, two district temperature 280-288 ℃, three district temperature 280-288 ℃, four district temperature 280-288 ℃, five district temperature 285-292 ℃.
In the production method of core-sheath compound fibre of the present invention, two kinds of melts that two screw extruders are extruded enter composite spining module by isometric distribution duct respectively, two kinds of melts are respectively after measuring pump accurate measurement separately, (cortex weight accounts for the 30%-70% of composite fibre gross weight) mixes the back by the spinnerets ejection in proportion, carries out composite spinning.Composite fibre melt thread from the spinneret hole ejection, solidify by slow cooling earlier and be beneficial to road, back coiling, wherein slow cooling district employing exhausting formula ring blowing down, wherein wind speed 0.2-1.0m/s, blast 10-50Pa, rheumatism 65%, 18 ℃ of wind-warm syndrome, cooled tow is after thread guide is by oil solution dedicated oiling, carry out pre-network, through draw-off godet 1 and draw-off godet 2, finally enter the reel system coiling and make PTT composite fibre, spinning silk winding speed 2500m/min-4500m/min again.
In the present invention, because PTT is new polyester, so PTT and PET have good spinning compatibility.The present invention is with PTT and PET composite spinning, and PTT is as cortex, and PET is as sandwich layer.Composite fibre of the present invention can be widely used in field of textiles, after weaving, obtains the composite fibre lining.This lining can carry out disperse dyeing under normal temperature (low temperature), lovely luster has reduced energy resource consumption.Compare with conventional PET fiber, this core-skin composite fiber elastic recovery is good, and feel is more soft, high resilience, and antistatic property is preferably arranged; Compare with ptt fiber, composite fibre intensity is higher, and lining has the body bone.Therefore, this core-sheath compound fibre combines the two common advantage of PET and PTT, the application of having expanded PTT, and also production cost is lower than common ptt fiber between PET fiber and ptt fiber.
The all raw material of Shi Yonging etc. all is conventional uses in the present invention, can buy from market.In the present invention, refer in particular to as non-, all amount, percentages are unit of weight.
Below in conjunction with embodiment the present invention is carried out concrete description.As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its spiritual essence or essential feature.Therefore, following embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change that is equal in the scope of the present invention all be included in the invention.
Four, the specific embodiment
Embodiment 1
With 55 kilograms of PTT polyester slices, the PET polyester slice carries out drying for 45 kilograms and removes moisture, the PTT polyester slice adopts the pre-crystallization continuous drying of ebullated bed, the heated drying air temperature is 140 ℃, blast 0.1Mpa, dew-point temperature≤-60 ℃, be 8-10 hour drying time, dry back section moisture content is controlled at below the 20ppm; The PET polyester slice adopts the pre-crystallization continuous drying of common pulsed-bed, and the heated drying air temperature is 160 ℃, blast 0.1Mpa, and dew-point temperature≤-60 ℃, be 4-6 hour drying time, dry back section moisture content is controlled at below the 25ppm.Then that drying is good PTT section and PET cut into slices respectively and to carry out extrusion spinning by separately screw extruder, the PTT screw extruder divides five district's temperature controls, one district temperature 235-240 ℃, two district temperature 240-255 ℃, three district temperature 245-260 ℃, four district temperature 255-265 ℃, five district temperature 258-265 ℃; The PET screw extruder divides five district's temperature controls, a district temperature 268-285 ℃, two district temperature 280-288 ℃, three district temperature 280-288 ℃, four district temperature 280-288 ℃, five district temperature 285-292 ℃.
Two kinds of melts that two screw extruders are extruded enter composite spining module by isometric distribution duct respectively, and two kinds of melts after measuring pump accurate measurement separately, mix the back by the spinnerets ejection respectively according to the above ratio, carry out composite spinning.Composite fibre melt thread from the spinneret hole ejection, solidify by slow cooling earlier and be beneficial to road, back coiling, wherein slow cooling district employing exhausting formula ring blowing down, wherein wind speed 0.3m/s, blast 15Pa, rheumatism 65%, 18 ℃ of wind-warm syndrome, cooled tow is after thread guide oils with finish, carry out pre-network, through draw-off godet 1 and draw-off godet 2, finally enter the reel system coiling and make core-sheath compound fibre, spinning silk winding speed 2500m/min again.
Core-sheath compound fibre of the present invention, physical property is as follows:
Monofilament linear density (dtex) 1.67-1 2.5
Line density coefficient of variation CV value (%)≤1.0
Fracture strength (CN/dtex) 〉=4
Elongation at break (%) 150 ± 8.0
Fracture strength coefficient of variation CV value (%)≤8.0
Line density deviation ratio (%) ± 3.0
Extension at break coefficient of variation CV value (%)≤8.0
Yarn unevenness CV value (%)≤1.6
Oil content (%) 0.45 ± 0.1.
Embodiment 2
With 70 kilograms of PET polyester, the PTT polyester slice carries out drying for 30 kilograms and removes moisture, the PTT polyester slice adopts the pre-crystallization continuous drying of ebullated bed, the heated drying air temperature is 140 ℃, blast 0.1Mpa, dew-point temperature≤-60 ℃, be 9 hours drying time, dry back section moisture content is controlled at below the 20ppm; The PET polyester slice adopts the pre-crystallization continuous drying of common pulsed-bed, and the heated drying air temperature is 160 ℃, blast 0.1Mpa, and dew-point temperature≤-60 ℃, be 5 hours drying time, dry back section moisture content is controlled at below the 25ppm.Then that drying is good PTT polyester slice and PET polyester slice carry out extrusion spinning by separately screw extruder respectively, the PTT screw extruder divides five district's temperature controls, one district temperature 235-240 ℃, two district temperature 240-255 ℃, three district temperature 245-260 ℃, four district temperature 255-265 ℃, five district temperature 258-265 ℃; The PET screw extruder divides five district's temperature controls, a district temperature 268-285 ℃, two district temperature 280-288 ℃, three district temperature 280-288 ℃, four district temperature 280-288 ℃, five district temperature 285-292 ℃.
Two kinds of melts that two screw extruders are extruded enter composite spining module by isometric distribution duct respectively, and two kinds of melts after measuring pump accurate measurement separately, mix the back by the spinnerets ejection respectively according to the above ratio, carry out composite spinning.Composite fibre melt thread from the spinneret hole ejection, solidify by slow cooling earlier and be beneficial to road, back coiling, wherein slow cooling district employing exhausting formula ring blowing down, wherein wind speed 0.5m/s, blast 20Pa, rheumatism 65%, 18 ℃ of wind-warm syndrome, cooled tow is after thread guide oils with finish, carry out pre-network, through draw-off godet 1 and draw-off godet 2, finally enter the reel system coiling and make core-sheath compound fibre, spinning silk winding speed 3000m/min again.
Core-sheath compound fibre of the present invention, physical property is as follows:
Monofilament linear density (dtex) 1.67-12.5
Line density coefficient of variation CV value (%)≤1.0
Fracture strength (CN/dtex) 〉=4
Elongation at break (%) 150 ± 8.0
Fracture strength coefficient of variation CV value (%)≤8.0
Line density deviation ratio (%) ± 3.0
Extension at break coefficient of variation CV value (%)≤8.0
Yarn unevenness CV value (%)≤1.6
Oil content (%) 0.45 ± 0.1.
Embodiment 3
With 30 kilograms of PET polyester, the PTT polyester slice carries out drying for 70 kilograms and removes moisture, the PTT polyester slice adopts the pre-crystallization continuous drying of ebullated bed, the heated drying air temperature is 140 ℃, blast 0.1Mpa, dew-point temperature≤-60 ℃, be 10 hours drying time, dry back section moisture content is controlled at below the 20ppm; The PET polyester slice adopts the pre-crystallization continuous drying of common pulsed-bed, and the heated drying air temperature is 160 ℃, blast 0.1Mpa, and dew-point temperature≤-60 ℃, be 6 hours drying time, dry back section moisture content is controlled at below the 25ppm.Then that drying is good PTT polyester slice and PET polyester slice carry out extrusion spinning by separately screw extruder respectively, the PTT screw extruder divides five district's temperature controls, one district temperature 235-240 ℃, two district temperature 240-255 ℃, three district temperature 245-260 ℃, four district temperature 255-265 ℃, five district temperature 258-265 ℃; The PET screw extruder divides five district's temperature controls, a district temperature 268-285 ℃, two district temperature 280-288 ℃, three district temperature 280-288 ℃, four district temperature 280-288 ℃, five district temperature 285-292 ℃.
Two kinds of melts that two screw extruders are extruded enter composite spining module by isometric distribution duct respectively, and two kinds of melts after measuring pump accurate measurement separately, mix the back by the spinnerets ejection respectively according to the above ratio, carry out composite spinning.Composite fibre melt thread from the spinneret hole ejection, solidify by slow cooling earlier and be beneficial to road, back coiling, wherein slow cooling district employing exhausting formula ring blowing down, wherein wind speed 0.8m/s, blast 40Pa, rheumatism 65%, 18 ℃ of wind-warm syndrome, cooled tow is after thread guide oils with commercially available finish, carry out pre-network, through draw-off godet 1 and draw-off godet 2, finally enter the reel system coiling and make core-sheath compound fibre, spinning silk winding speed 4000m/min again.
Core-sheath compound fibre of the present invention, physical property is as follows:
Monofilament linear density (dtex) 1.67-12.5
Line density coefficient of variation CV value (%)≤1.0
Fracture strength (CN/dtex) 〉=4
Elongation at break (%) 150 ± 8.0
Fracture strength coefficient of variation CV value (%)≤8.0
Line density deviation ratio (%) ± 3.0
Extension at break coefficient of variation CV value (%)≤8.0
Yarn unevenness CV value (%)≤1.6
Oil content (%) 0.45 ± 0.1.
Claims (8)
1. a core-sheath compound fibre is characterized in that cortex is a ptt fiber, and sandwich layer is the PET fiber, and sandwich layer is wrapped in the cortex fully, and it is 30%-70% that cortex weight accounts for composite fibre gross weight ratio, and finished fiber line density scope is 87dtex-300dtex.
2. core-sheath compound fibre according to claim 1 is characterized in that described composite fibre has following physical property:
Monofilament linear density (dtex) 1.67-12.5
Line density coefficient of variation CV value (%)≤1.0
Fracture strength (CN/dtex) 〉=4.0
Elongation at break (%) 150 ± 8.0
Fracture strength coefficient of variation CV value (%)≤8.0.
3. core-sheath compound fibre according to claim 1 is characterized in that described composite fibre also has following physical property:
Line density deviation ratio (%) ± 3.0
Extension at break coefficient of variation CV value (%)≤8.0
Yarn unevenness CV value (%)≤1.6
Oil content (%) 0.45 ± 0.1.
4. according to the production method of one of claim 1-3 described core-sheath compound fibre, it is characterized in that comprising drying, melt filteration and spinning step, wherein earlier two kinds of different polyester chips are carried out drying and remove moisture, the pre-crystallization continuous drying of ebullated bed is adopted in the PTT section, the heated drying air temperature is 140 ℃, blast 0.1MPa, dew-point temperature≤-60 ℃, be 8-10 hour drying time, and dry back section moisture content is controlled at below the 20ppm; The pre-crystallization continuous drying of common pulsed-bed is adopted in PET section, and the heated drying air temperature is 160 ℃, blast 0.1MPa, dew-point temperature≤-60 ℃, and be 4-6 hour drying time, and dry back section moisture content is controlled at below the 25ppm.
5. the production method of core-sheath compound fibre according to claim 4, it is characterized in that the good PTT of drying section and PET cut into slices respectively carries out extrusion spinning by separately screw extruder, the PTT screw extruder divides five district's temperature controls, one district temperature 235-240 ℃, two district temperature 240-255 ℃, three district temperature 245-260 ℃, four district temperature 255-265 ℃, five district temperature 258-265 ℃, the PET screw extruder divides five district's temperature controls, a district temperature 268-285 ℃, two district temperature 280-288 ℃, three district temperature 280-288 ℃, four district temperature 280-288 ℃, five district temperature 285-292 ℃.
6. the production method of core-sheath compound fibre according to claim 5, it is characterized in that two kinds of melts that two screw extruders are extruded enter composite spining module by isometric distribution duct respectively, two kinds of melts after measuring pump accurate measurement separately, mix the back and are sprayed by spinnerets respectively.
7. the production method of core-sheath compound fibre according to claim 4, it is characterized in that from the composite fibre melt thread of spinneret hole ejection, solidify by slow cooling earlier, wherein the slow cooling district adopts exhausting formula ring blowing down, wind speed 0.2-1.0m/s wherein, blast 10-50Pa, rheumatism 6 5%, 18 ℃ of wind-warm syndrome.
8. the production method of core-sheath compound fibre according to claim 7, it is characterized in that cooled tow is after thread guide oils with finish, carry out pre-network, again through draw-off godet 1 and draw-off godet 2, finally enter the reel system coiling and make core-sheath compound fibre, spinning silk winding speed is 2500m/min-4500m/min.
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| CN200710187657A CN100585035C (en) | 2007-11-21 | 2007-11-21 | Core-skin type composite fiber and production method thereof |
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| CN200710187657A CN100585035C (en) | 2007-11-21 | 2007-11-21 | Core-skin type composite fiber and production method thereof |
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| CN101158057A true CN101158057A (en) | 2008-04-09 |
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| CN101760797A (en) * | 2009-12-11 | 2010-06-30 | 仪征市星海化纤有限公司 | Preparing method of PBT bamboo charcoal fibers |
| CN101760801A (en) * | 2009-12-11 | 2010-06-30 | 仪征市星海化纤有限公司 | Synthetic method of PBT color spinning yarns |
| CN101423985B (en) * | 2008-12-08 | 2010-10-27 | 浙江理工大学 | Shape retention fiber and textile lining and manufacturing method |
| CN102011214A (en) * | 2009-09-04 | 2011-04-13 | 东丽纤维研究所（中国）有限公司 | Sheath-core composite fiber and production method thereof |
| CN102127821A (en) * | 2010-01-13 | 2011-07-20 | 辽阳汇嘉化纤有限公司 | Process for producing modified PET/PTT elastic fiber |
| CN102560708A (en) * | 2011-12-06 | 2012-07-11 | 绍兴文理学院 | Production technology of novel hot-melting polyester monofilament with island-shaped cross section |
| CN102851762A (en) * | 2012-09-26 | 2013-01-02 | 苏州大学 | Porous ultrafine X-shaped polyester fiber and preparation method thereof |
| CN103343398A (en) * | 2013-06-13 | 2013-10-09 | 江苏振阳新合纤有限责任公司 | Eccentric skin-core-type antibacterial-functional composite polyester fibre and preparation method thereof |
| CN103469354A (en) * | 2013-09-02 | 2013-12-25 | 东华大学 | Eccentric sheath-core composite polyester fiber with anti-bacterial function and preparation method thereof |
| CN103628180A (en) * | 2013-12-09 | 2014-03-12 | 盛虹集团有限公司 | Ultra-extinction memory fiber and preparation method |
| CN107699979A (en) * | 2017-10-12 | 2018-02-16 | 苏州龙杰特种纤维股份有限公司 | A kind of environment-protection fiber and preparation method thereof |
| CN108624986A (en) * | 2018-05-09 | 2018-10-09 | 同济大学 | Novel PLA/PET bi-component sheath-cores structural fibers and preparation 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 |
| CN111188103A (en) * | 2020-03-12 | 2020-05-22 | 江苏江南高纤股份有限公司 | Composite super nylon wool top and preparation method thereof |
| CN111379039A (en) * | 2018-12-30 | 2020-07-07 | 苏州龙杰特种纤维股份有限公司 | Environment-friendly multipurpose bionic fiber production process |
| CN112941665A (en) * | 2021-03-08 | 2021-06-11 | 江苏江南高纤股份有限公司 | Terlon wool top and preparation method thereof |
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2007
- 2007-11-21 CN CN200710187657A patent/CN100585035C/en not_active Expired - Fee Related
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| CN101423985B (en) * | 2008-12-08 | 2010-10-27 | 浙江理工大学 | Shape retention fiber and textile lining and manufacturing method |
| CN102011214B (en) * | 2009-09-04 | 2013-04-03 | 东丽纤维研究所（中国）有限公司 | Sheath-core composite fiber and production method thereof |
| CN102011214A (en) * | 2009-09-04 | 2011-04-13 | 东丽纤维研究所（中国）有限公司 | Sheath-core composite fiber and production method thereof |
| CN101760797A (en) * | 2009-12-11 | 2010-06-30 | 仪征市星海化纤有限公司 | Preparing method of PBT bamboo charcoal fibers |
| CN101760801A (en) * | 2009-12-11 | 2010-06-30 | 仪征市星海化纤有限公司 | Synthetic method of PBT color spinning yarns |
| CN101760795A (en) * | 2009-12-11 | 2010-06-30 | 仪征市星海化纤有限公司 | Preparation method of PBT silver-ion antibiotic moisture-absorption deodorization fibre |
| CN102127821A (en) * | 2010-01-13 | 2011-07-20 | 辽阳汇嘉化纤有限公司 | Process for producing modified PET/PTT elastic fiber |
| CN102127821B (en) * | 2010-01-13 | 2014-08-20 | 辽阳汇嘉化纤有限公司 | Process for producing modified PET/PTT elastic fiber |
| CN102560708A (en) * | 2011-12-06 | 2012-07-11 | 绍兴文理学院 | Production technology of novel hot-melting polyester monofilament with island-shaped cross section |
| CN102560708B (en) * | 2011-12-06 | 2014-09-03 | 绍兴文理学院 | Production technology of novel hot-melting polyester monofilament with island-shaped cross section |
| CN102851762A (en) * | 2012-09-26 | 2013-01-02 | 苏州大学 | Porous ultrafine X-shaped polyester fiber and preparation method thereof |
| CN102851762B (en) * | 2012-09-26 | 2015-01-21 | 苏州大学 | Porous ultrafine X-shaped polyester fiber and preparation method thereof |
| CN103343398A (en) * | 2013-06-13 | 2013-10-09 | 江苏振阳新合纤有限责任公司 | Eccentric skin-core-type antibacterial-functional composite polyester fibre and preparation method thereof |
| CN103469354A (en) * | 2013-09-02 | 2013-12-25 | 东华大学 | Eccentric sheath-core composite polyester fiber with anti-bacterial function and preparation method thereof |
| CN103469354B (en) * | 2013-09-02 | 2015-11-18 | 东华大学 | A kind of eccentric sheath-core composite polyester fiber with anti-bacterial function and preparation method thereof |
| CN103628180A (en) * | 2013-12-09 | 2014-03-12 | 盛虹集团有限公司 | Ultra-extinction memory fiber and preparation method |
| CN107699979A (en) * | 2017-10-12 | 2018-02-16 | 苏州龙杰特种纤维股份有限公司 | A kind of environment-protection fiber and preparation method thereof |
| CN108624986A (en) * | 2018-05-09 | 2018-10-09 | 同济大学 | Novel PLA/PET bi-component sheath-cores structural fibers and preparation 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 |
| CN111379039A (en) * | 2018-12-30 | 2020-07-07 | 苏州龙杰特种纤维股份有限公司 | Environment-friendly multipurpose bionic fiber production process |
| CN111188103A (en) * | 2020-03-12 | 2020-05-22 | 江苏江南高纤股份有限公司 | Composite super nylon wool top and preparation method thereof |
| CN112941665A (en) * | 2021-03-08 | 2021-06-11 | 江苏江南高纤股份有限公司 | Terlon wool top and preparation method thereof |
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| CN100585035C (en) | 2010-01-27 |
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