CN102162151A - Polyester fiber - Google Patents
Polyester fiber Download PDFInfo
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- CN102162151A CN102162151A CN2010101278247A CN201010127824A CN102162151A CN 102162151 A CN102162151 A CN 102162151A CN 2010101278247 A CN2010101278247 A CN 2010101278247A CN 201010127824 A CN201010127824 A CN 201010127824A CN 102162151 A CN102162151 A CN 102162151A
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- China
- Prior art keywords
- boiling water
- water shrinkage
- polyester fiber
- modified copolyester
- birefringence
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Abstract
The invention discloses a polyester fiber with medium contractibility. The polyester fiber contains modified copolyester with the content of above 20%, wherein the modified copolyester is prepared by copolymerizing 1-30mol% aliphatic dihydric alcohol serving as third monomers, and the aliphatic dihydric alcohol has side chains and has the carbon atomic number below six. The fiber prepared from the copolyester has favorable contractibility, and the fiber can be a low-orientation undrawn yarn with the double refraction delta n of 20*10<-3>-50*10<-3> and the boiling water shrinkage of 30-80%, or can be a high-orientation undrawn yarn with the double refraction delta n of 40*10<-3>-90*10<-3> and the boiling water shrinkage of 5-20%, or can be a drawn or false-twist yarn with the double refraction delta n of 120*10<-3>-140*10<-3> and the boiling water shrinkage of 3-15%. Pure yarn textiles prepared from the polyester fibers disclosed by the invention or textiles prepared by blending and interweaving the polyester fibers disclosed by the invention and other textile fibers have favorable handfeel and bulkiness.
Description
Technical field
The present invention relates to a kind of polyester fiber, specifically containing with band side chain and carbon number is the polyester fiber of the modified copolyester that forms of the aliphatic dihydroxy alcohol copolymerization below 6.
Background technology
The usually said polyester fiber of people is meant polyethylene terephthalate (PET) fiber, promptly forms polyester slice through spinning by poly terephthalic acid and ethylene glycol polycondensation, and the fiber that obtains at last is a kind of more satisfactory textile raw material.
The fiber of boiling water shrinkage about 20% is called general high shrinkage, and the fiber of boiling water shrinkage between 35%~45% is called high-shrinkage fibre.High-shrinkage fibre generally be with blending resultant yarns such as normal polyester fiber, wool, cotton after weave, or interweave with polyester-cotton blend, Quality Pure Cotton Yarn Production, can obtain the fabric of individual style.High-shrinkage fibre can also be made Fake Furs, artificial suede and woollen blanket etc., and product has characteristics such as feel of wool softness, fine hair densification.
Polyester fiber is as the crystalline high polymer fiber, its shrinkage is lower, in order to obtain having the polyester fiber of good shrinkage, two approach are generally arranged: the one, adopt special spinning and drawing process, as with commercially available POY silk through cryogenic tensile, it is 15~50% highly shrinkable polyester fiber that technologies such as low temperature setting can make boiling water shrinkage; The 2nd, the method for employing chemical modification as being that the 3rd monomer is produced copolyester fiber with neopentyl glycol, is made the combed top spun yarn with this fiber, and its fabric is shunk under the temperature about 180 ℃, and fabric shrinkage can reach 40%.
But these prior aries can not be improved the dyeability of polyester fiber, and its fabric dye-uptake at low temperatures is relatively poor.
Summary of the invention
The present invention aims to provide a kind of polyester fiber with good shrinkage factor, good dyeability.
Technical solution of the present invention is:
Contain in the fibre-forming polymer of polyester fiber of the present invention and account for the modified copolyester of whole fibre-forming polymer weight more than 20%, this modified copolyester is to be that aliphatic dihydroxy alcohol 6 below is that the 3rd monomer copolymerization forms with band side chain and carbon number, and the content of the 3rd monomer structure unit is 1~30mol% of the glycol component total amount of formation modified copolyester; This polyester fiber is that birefringence n is 20 * 10
-3~50 * 10
-3Low orientation extending filament not, its boiling water shrinkage is 30~80%, or birefringence n is 40 * 10
-3~90 * 10
-3Height be orientated not extending filament, its boiling water shrinkage is 5~20%, or birefringence n is 120 * 10
-3~140 * 10
-3Extension or false twisting long filament, its boiling water shrinkage is 3~15%.
With band side chain and carbon number is that aliphatic dihydroxy alcohol below 6 is the modified copolyester that the 3rd monomer copolymerization forms, because the adding of the 3rd monomer, the structure of the tight packing of its strand changes, the degree of crystallinity and the degree of orientation decrease, under equal spin-drawing condition, the unformed area that contains the polyester fiber of modified copolyester increases, and its residue shrinkage factor increases, thereby its boiling water shrinkage can reach indication range preferably.
The content of the 3rd above-mentioned monomer structure unit is preferably 6~20mol% of the glycol component total amount that constitutes the low melting point modified copolyester.In this scope, the dyeability and the boiling water shrinkage of polyester fiber that contains modified copolyester is all fine.
Above-mentioned band side chain and carbon number are that aliphatic dihydroxy alcohol the 3rd monomer below 6 is the 2-methyl isophthalic acid, 3 propylene glycol, 2,2-dimethyl-1,3 propylene glycol, 2-methyl isophthalic acid, 4-butanediol, 2,3-dimethyl-1,4-butanediol or 2-methyl isophthalic acid, the 5-pentanediol is preferably the 2-methyl isophthalic acid, 3 propylene glycol.
Contain in the fibre-forming polymer of polyester fiber of the present invention and account for the modified copolyester of whole fibre-forming polymer weight more than 20%, other composition can be conventional polyester, nylon 6 or nylon 66, its combining form can be composite spinning, mix fibre etc. that the part by weight of modified copolyester requires more than 20%.
Shrinkage factor evaluation method described in the present invention is specific as follows: at first get ten meters (one meter one circle, ten circles) yarns, then in temperature: conditioning is more than 12 hours in the environment of 20 ℃ of humidity: 65%RH.
On the survey long table, hang up and decide the former long L that the sample yarn is measured in loading
0
(FDY loading: D * 0.05 * number of turns * 2DTY loading: D * 0.1 * number of turns * 2)
Wherein, D is the fiber number of yarn, the Den of unit.
The sample yarn bound up with gauze in the boiling water that is placed on 100 ℃ heat treated 30 minutes.
Yarns treated is taken out from gauze, then in temperature: conditioning more than 12 hours in the environment of 20 ℃ of humidity: 65%RH, air dry.
On the survey long table, hang up once more and decide the length L that the sample yarn is measured in loading.
Boiling water shrinkage (%)=[(L
0-L)/L
0] * 100
L
0: specimen length (mm) before the boiling water treating
L: specimen length after the boiling water treating (mm)
Birefringence n evaluation method is to use Nikon ECLIPSE E600 POL type polarized light microscope observing fiber to calculate by formula again.The concrete practice: use blade to cut the fiber sample of 2~3cm, the fiber section is oblique 45 °.
Under petrographic microscope, observe monofilament in the fiber, adjust the position of fibre single thread in the visual field, read the diameter D (μ m) of fiber.
Regulate microscope, make sample in the visual field, change color take place, when the sample in the visual field presents black, read the θ angle reading that shows on the microscope by the light angle variation.Observe the form of the oblique 45 ° of faces of sample simultaneously, record island number (have a blackstreak to calculate an island, then be not designated as 0) when blackstreak is arranged
Calculate by formula: birefringence=R/D
R=(180χ+θ)×546.5/180
χ: island number
θ: analyze the angle
D: fibre single thread diameter (μ m)
546.5: petrographic microscope optical source wavelength (m μ).
The specific embodiment
Embodiment 1:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 3 propylene glycol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 3 propylene glycol construction unit content are the 6mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 20 * 10
-3~30 * 10
-3, boiling water shrinkage is 30~50%.
Embodiment 2:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, 2, and 2-dimethyl-1,3 propylene glycol is that the 3rd monomer carries out combined polymerization, 2,2-dimethyl-1,3 propylene glycol construction unit content is the 10mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 30 * 10
-3~40 * 10
-3, boiling water shrinkage is 40~60%.
Embodiment 3:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 4-butanediol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 4-butanediol construction unit content is the 15mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 40 * 10
-3~50 * 10
-3, boiling water shrinkage is 50~80%.
Embodiment 4:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, 2, and 3-dimethyl-1,4-butanediol are that the 3rd monomer carries out combined polymerization, 2,3-dimethyl-1,4-butanediol construction unit content is the 7mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the height of gained is orientated not that the birefringence n of extending filament is 40 * 10
-3~60 * 10
-3, boiling water shrinkage is 5~10%.
Embodiment 5:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 5-pentanediol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 5-pentanediol construction unit content is the 12mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the height of gained is orientated not that the birefringence n of extending filament is 60 * 10
-3~80 * 10
-3, boiling water shrinkage is 8~15%.
Embodiment 6:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 3 propylene glycol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 3 propylene glycol construction unit content are the 18mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the height of gained is orientated not that the birefringence n of extending filament is 70 * 10
-3~90 * 10
-3, boiling water shrinkage is 12~20%.
Embodiment 7:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, 2, and 2-dimethyl-1,3 propylene glycol is that the 3rd monomer carries out combined polymerization, 2,2-dimethyl-1,3 propylene glycol construction unit content is the 8mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, through extending or false twisting processing, the birefringence n of the extension of gained or false twisting long filament is 120 * 10 again
-3~130 * 10
-3, boiling water shrinkage is 3~8%.
Embodiment 8:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 4-butanediol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 4-butanediol construction unit content is the 13mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, through extending or false twisting processing, the birefringence n of the extension of gained or false twisting long filament is 125 * 10 again
-3~135 * 10
-3, boiling water shrinkage is 6~12%.
Embodiment 9:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 3 propylene glycol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 3 propylene glycol construction unit content are the 20mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, through extending or false twisting processing, the birefringence n of the extension of gained or false twisting long filament is 130 * 10 again
-3~140 * 10
-3, boiling water shrinkage is 9~15%.
Embodiment 10:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, 2, and 2-dimethyl-1,3 propylene glycol is that the 3rd monomer carries out combined polymerization, 2,2-dimethyl-1,3 propylene glycol construction unit content is the 10mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 20 * 10
-3~35 * 10
-3Boiling water shrinkage is 30~55%.
Embodiment 11:
With terephthalic acid (TPA) and glycol ester is polymerization single polymerization monomer, and 2-methyl isophthalic acid, 4 butanediols are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 4 butanediol construction unit content are the 15mol% of the glycol component total amount of formation modified copolyester.This copolyesters is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 30 * 10
-3~45 * 10
-3, boiling water shrinkage is 40~65%.
Embodiment 12:
Terephthalic acid (TPA) and glycol ester are polymerization single polymerization monomer, 2, and 2-dimethyl-1,3 propylene glycol is that the 3rd monomer carries out combined polymerization, 2,2-dimethyl-1,3 propylene glycol construction unit content is the 10mol% of the glycol component total amount of formation modified copolyester.To plant modified copolyester and nylon 6 carries out the composite molten spinning, the mass ratio of modified copolyester and nylon 6 is 80: 20.The low orientation of the gained not birefringence n of extending filament is 40 * 10
-3~60 * 10
-3, boiling water shrinkage is 35~50%.
Embodiment 13:
Terephthalic acid (TPA) and glycol ester are polymerization single polymerization monomer, and 2-methyl isophthalic acid, 4 butanediols are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 4 butanediol construction unit content are the 15mol% of the glycol component total amount of formation modified copolyester.To plant modified copolyester and nylon 66 carries out the composite molten spinning, the mass ratio of modified copolyester and nylon 66 is 50: 50.The low orientation of the gained not birefringence n of extending filament is 30 * 10
-3~45 * 10
-3, boiling water shrinkage is 40~65%.
Embodiment 14:
Terephthalic acid (TPA) and glycol ester are polymerization single polymerization monomer, and 2-methyl isophthalic acid, 3 propylene glycol are that the 3rd monomer carries out combined polymerization, the 2-methyl isophthalic acid, and 3 propylene glycol construction unit content are the 20mol% of the glycol component total amount of formation modified copolyester.To plant modified copolyester and nylon 6 carries out the composite molten spinning, the mass ratio of modified copolyester and nylon 6 is 20: 80.Through extending or false twisting processing, the birefringence n of the extension of gained or false twisting long filament is 130 * 10 again
-3~140 * 10
-3, boiling water shrinkage is 9~15%.
Comparative example 1:
The pure terephthalic acid (PTA) glycol ester is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 30 * 10
-3~35 * 10
-3, boiling water shrinkage is 30~35%.
Comparative example 2:
The pure terephthalic acid (PTA) glycol ester is made spinning chips carry out melt spinning, the height of gained is orientated not that the birefringence n of extending filament is 90 * 10
-3~110 * 10
-3, boiling water shrinkage is 4~8%.
Comparative example 3:
The pure terephthalic acid (PTA) glycol ester is made spinning chips carry out melt spinning, through extending or false twisting processing, the birefringence n of the extension of gained or false twisting long filament is 130 * 10 again
-3~140 * 10
-3, boiling water shrinkage is 3~8%.
Comparative example 4:
Pure high-contraction copolyester is made spinning chips carry out melt spinning, the low orientation of the gained not birefringence n of extending filament is 25 * 10
-3~35 * 10
-3, boiling water shrinkage is 50~60%.
Comparative example 5:
Pure high-contraction copolyester is made spinning chips carry out melt spinning, the height of gained is orientated not that the birefringence n of extending filament is 50 * 10
-3~60 * 10
-3, boiling water shrinkage is 10~15%.
Comparative example 6:
Pure high-contraction copolyester is made spinning chips carry out melt spinning, through extending or false twisting processing, the birefringence n of the extension of gained or false twisting long filament is 130 * 10 again
-3~140 * 10
-3, boiling water shrinkage is 6~10%.
Claims (3)
1. polyester fiber, it is characterized in that: contain in the fibre-forming polymer of this polyester fiber and account for the modified copolyester of whole fibre-forming polymer weight more than 20%, this modified copolyester is to be that aliphatic dihydroxy alcohol 6 below is that the 3rd monomer copolymerization forms with band side chain and carbon number, and the content of the 3rd monomer structure unit is 1~30mol% of the glycol component total amount of formation modified copolyester; This polyester fiber is that birefringence n is 20 * 10
-3~50 * 10
-3Low orientation extending filament not, its boiling water shrinkage is 30~80%, or birefringence n is 40 * 10
-3~90 * 10
-3Height be orientated not extending filament, its boiling water shrinkage is 5~20%, or birefringence n is 120 * 10
-3~140 * 10
-3Extension or false twisting long filament, its boiling water shrinkage is 3~15%.
2. polyester fiber according to claim 1 is characterized in that: the content of the 3rd monomer structure unit is 6~20mol% of the glycol component total amount of formation modified copolyester.
3. polyester fiber according to claim 1 and 2, it is characterized in that: described band side chain and carbon number are that aliphatic dihydroxy alcohol the 3rd monomer below 6 is the 2-methyl isophthalic acid, 3 propylene glycol, 2,2-dimethyl-1,3 propylene glycol, 2-methyl isophthalic acid, 4-butanediol, 2,3-dimethyl-1,4-butanediol or 2-methyl isophthalic acid, the 5-pentanediol.
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CN 201010127824 CN102162151B (en) | 2010-02-21 | 2010-02-21 | Polyester fiber |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102914476A (en) * | 2012-09-04 | 2013-02-06 | 福建鑫华股份有限公司 | Method for online detection of polyester staple fiber shrinkage in boiling water |
CN103122495A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所(中国)有限公司 | Modified copolyester fiber, method for manufacturing same and fabric comprising modified copolyester fiber |
CN103122502A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所(中国)有限公司 | Sea-island composite fiber and superfine fiber fabric |
CN103122514A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所(中国)有限公司 | Hollow false twist processed yarn and production method thereof |
CN109735931A (en) * | 2018-12-27 | 2019-05-10 | 江苏恒力化纤股份有限公司 | The preparation method of polyester industrial yarn for leash |
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CN101063236A (en) * | 2007-05-11 | 2007-10-31 | 东华大学 | Modified copolyester slicer or fabric and method for making same |
CN101200535A (en) * | 2006-12-13 | 2008-06-18 | 东丽纤维研究所(中国)有限公司 | Flame retardant cationic dyeable polyesters and preparation method |
CN101498062A (en) * | 2009-03-05 | 2009-08-05 | 绍兴文理学院 | Low temperature dyeable flexible bright polyester fiber and production method thereof |
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CN101200535A (en) * | 2006-12-13 | 2008-06-18 | 东丽纤维研究所(中国)有限公司 | Flame retardant cationic dyeable polyesters and preparation method |
CN101063236A (en) * | 2007-05-11 | 2007-10-31 | 东华大学 | Modified copolyester slicer or fabric and method for making same |
CN101498062A (en) * | 2009-03-05 | 2009-08-05 | 绍兴文理学院 | Low temperature dyeable flexible bright polyester fiber and production method thereof |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103122495A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所(中国)有限公司 | Modified copolyester fiber, method for manufacturing same and fabric comprising modified copolyester fiber |
CN103122502A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所(中国)有限公司 | Sea-island composite fiber and superfine fiber fabric |
CN103122514A (en) * | 2011-11-18 | 2013-05-29 | 东丽纤维研究所(中国)有限公司 | Hollow false twist processed yarn and production method thereof |
CN103122514B (en) * | 2011-11-18 | 2016-11-23 | 东丽纤维研究所(中国)有限公司 | A kind of hollow false-twisted textured yarn and production method thereof |
CN102914476A (en) * | 2012-09-04 | 2013-02-06 | 福建鑫华股份有限公司 | Method for online detection of polyester staple fiber shrinkage in boiling water |
CN102914476B (en) * | 2012-09-04 | 2015-04-08 | 福建鑫华股份有限公司 | Method for online detection of polyester staple fiber shrinkage in boiling water |
CN109735931A (en) * | 2018-12-27 | 2019-05-10 | 江苏恒力化纤股份有限公司 | The preparation method of polyester industrial yarn for leash |
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Effective date of registration: 20160612 Address after: Japan Tokyo central Nihonbashi Muromachi 1-1-2 Patentee after: Toray Industries, Inc. Address before: 226009 Nantong Province Economic and Technological Development Zone, the New South Road, No. 58, No. Patentee before: Toray Fiber Research Institute (China) Co., Ltd. |