CN1303127C - Copolymeization palyester polymer of copolymerized by hexamethylene and deep dyed copolymerization polyester fibre prepared by it - Google Patents

Copolymeization palyester polymer of copolymerized by hexamethylene and deep dyed copolymerization polyester fibre prepared by it Download PDF

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Publication number
CN1303127C
CN1303127C CNB2004100446127A CN200410044612A CN1303127C CN 1303127 C CN1303127 C CN 1303127C CN B2004100446127 A CNB2004100446127 A CN B2004100446127A CN 200410044612 A CN200410044612 A CN 200410044612A CN 1303127 C CN1303127 C CN 1303127C
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copolyester
polymer
copolyester polymer
fiber
copolymerized
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CN1597726A (en
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梁承哲
权益铉
孙亮国
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Xiaoxing Tianxi
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Hyosung Corp
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16Dicarboxylic acids and dihydroxy compounds
    • C08G63/18Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181Acids containing aromatic rings
    • C08G63/183Terephthalic acids
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Artificial Filaments (AREA)

Abstract

Disclosed is a copolyester polymer for a fiber produced according to a polyester polymerization process, using a terephthalic acid as a main raw material, and a deeply dyeable copolyester fiber produced using the same. The copolyester polymer is copolymerized with 1 to 10 mole % of cyclohexane 1,4-dimethanol based on a glycol component, and contains 0.7 to 2.0 wt% of DEG.

Description

With hexanaphthene 1, but the copolyester fiber of copolyester polymer that the copolymerization of 4-dimethanol obtains and the engrain that uses its preparation
Technical field
The present invention relates to a kind of copolyester polymer that is used for fiber, the described copolyester polymer hexanaphthene 1 of counting 1-10mol% by diol component, the copolymerization of 4-dimethanol obtains, but and relates to the copolyester fiber of the engrain that uses described copolyester polymer preparation.
Background technology
Polyethylene terephthalate (PET) has good physical properties and to the good resistibility of chemical or environment, usually as producing the raw-material polymer materials of clothes with fiber, industrial fiber and film.
Although polyethylene terephthalate (PET) has these good physics and chemical properties, when using trevira to produce clothes, it lacks the painted functional group of influence.Therefore, trevira can be colored by independent dispersed dye, and described dispersed dye penetrate into the non-crystalline region of trevira and adhere on it.
People have carried out the non-crystalline region that a lot of researchs enlarge trevira, so that use dispersed dye effectively trevira to be dyeed.
Usually, copolyester polymer can be by engrain, because it has the non-crystalline region bigger than PET.
But bathochrome (bathochrome) performance that only improves PET can reduce its good thermostability, and then reduces the colour fastness of PET.
For example people such as J.Miliky " the ModifiedPolyester Fiber " that deliver on Elsevier in 1991 discloses, the copolyester that obtains with m-phthalic acid or Diethylene Glycol copolymerization is improved aspect the dyeing behavior, because its non-crystalline region enlarges, but its colour fastness aspect but has been lowered, this is because the change of thermal properties, as the reduction of fusing point and second-order transition temperature, can accelerate the motion of molecular chain.
Aromatic diacid class such as naphthalene 2 are used in some method suggestion in addition, the ethylene oxide adduct of 6-dicarboxylic acid or aromatic diol class such as dihydroxyphenyl propane, and with the second-order transition temperature of increase copolyester fiber, thus the dyeability of raising copolyester.
Examine open Sho.57-63325, Sho.57-66119, Sho.57-121032 and Sho.57-212228 such as day the present invention and mention a kind of method, it is only with the ethylene oxide adduct of dihydroxyphenyl propane or enlarge the non-crystalline region of PET with the mixture of the ethylene oxide adduct of dihydroxyphenyl propane and other monomer such as neopentyl glycol.Yet, the weak point of aforesaid method is, using a large amount of monomers to make the copolyester fiber can cause the crystallinity of copolyester fiber to reduce greatly, thereby make the production difficulty of copolyester fiber, or make the copolyester fibre have very high contraction, and then make the physicals of copolyester fiber be lower than conventional PET.
Simultaneously, United States Patent (USP) 5,681,981 and 6,342,579, PCT announce 98/58008,95/00575 and 97/30102 and European patent 1,156,070 copolymerization hexanaphthene 1 is disclosed, the method for 4-dimethanol.
Yet, because use the hexanaphthene 1 that surpasses 10mole%, the 4-dimethanol prepares copolyester polymer, and this copolyester polymer is crystalloid, even so can use this copolyester polymer to make fiber, the shrink grading of this fiber also is much higher than conventional PET fiber.Therefore, can not use fiber to replace conventional PET fiber by this copolyester polymer preparation.Particularly, when use 30% or more hexanaphthene 1, when preparing copolyester polymer during the 4-dimethanol, can not use this copolyester polymer to prepare fiber, because copolyester polymer does not almost have crystallizing field.
And when the mol ratio of diol component and diacid component is 1.7 or when higher, therefore the output of Diethylene Glycol (DEG hereinafter referred to as) and undesirably reduced the thermal properties of copolyester polymer because polyethylene terephthalate copolymer closes the side reaction of technology and increases greatly.
Summary of the invention
Therefore, the present invention keeps the problems referred to above that occur in the prior art firmly in mind, the purpose of this invention is to provide the copolyester polymer that is used for fiber, this polymkeric substance has the non-crystalline region of expansion, guarantee good thermal that it has a PET simultaneously with can be, but the present invention also provides the copolyester fiber that uses the engrain that this copolyester polymer produces by engrain.
DESCRIPTION OF THE PREFERRED
According to the present invention, the inventor has carried out deeply comprehensively research with improved copolyester polymer, thereby realizes above-mentioned purpose of the present invention, has invented copolyester polymer, and it has the non-crystalline region of expansion, and second-order transition temperature can not reduce simultaneously.
According to the present invention, the monomer example that is used to prepare copolyester polymer comprises the ethylene oxide adduct or the hexanaphthene 1 of aromatic series or aliphatic cpd such as naphthalene dicarboxylic acids, dihydroxyphenyl propane, 4-dimethanol.
Particularly, consider the contraction of economic benefit and the raw yarn that utilizes monomer to make, the present invention utilizes hexanaphthene 1, and the 4-dimethanol is as monomer.
Hexanaphthene 1,4-dimethanol may exist isomeric forms such as cis-isomeride and trans-isomer(ide).Therefore, when utilizing hexanaphthene 1, when the 4-dimethanol prepares copolyester polymer as component, even compare with other monomer, hexanaphthene 1, the consumption of 4-dimethanol is less, and the non-crystalline region of this copolyester polymer is also sufficiently enlarged.
To provide the detailed description of copolyester polymer produced according to the present invention below.
The copolyester polymer of the present invention hexanaphthene 1 of counting 1-10mole% by diol component, 4-dimethanol (CHDM hereinafter referred to as) copolymerization obtains.
When using the CHDM that surpasses 10mole% to prepare copolyester polymer, the copolyester fiber that uses this copolyester polymer to make has very high shrink grading.Especially, when using the CHDM that surpasses 30mole% to prepare copolyester polymer, the non-crystalline region of copolyester polymer becomes excessive, thereby can not use this copolyester polymer to produce the copolyester fiber.
On the other hand, when using CHDM less than 1mole% to prepare copolyester polymer, can not reach the purpose that the present invention increases the non-crystalline region of copolyester polymer.
According to the present invention, described copolyester polymer uses terephthalic acid (TPA hereinafter referred to as) to prepare as raw material by TPA polymerization method.The preparation method of copolyester polymer can be divided into: utilize TPA as a kind of method of raw material with utilize the another kind of method of dimethyl terephthalate (DMT) as raw material.Wherein, in view of economic benefit, the method for utilizing TPA to make raw material has competitive power very much.
Contain in the method for copolyester polymer of CHDM in preparation, unreacted TPA is insoluble and infusible.Therefore, unreacted TPA has stopped up the oligopolymer strainer or the polymer filter of polymerization unit, perhaps when the copolyester polymer spinning, stuffing pressure increases fast owing to unreacted TPA, causes the reduction of processibility in the manufacturing processed of copolyester polymer and fiber.
Therefore, necessary sufficiently long of esterification time and esterification temperature must be enough high, to reduce the amount of unreacted TPA.
But, when long or temperature is too high when esterification time, increase unfriendly as the output of the DEG of by product, reduced the thermostability of copolyester polymer.Therefore, preferably reduce the G value ratio of the mole number of terephthalic acid (total mole number of ethylene glycol and CHDM with) as much as possible, to suppress the generation of DEG.According to the present invention, the G value is in 1.10 to 1.50 scopes.When the G value was in above-mentioned scope, the DEG content in copolyester polymer was 0.7 to 2.0wt%, has realized that thus the present invention increases the purpose of copolyester polymer non-crystalline region.Here, the thermal characteristics of copolyester polymer does not reduce, and therefore utilizing copolyester polymer to prepare in the process of copolyester fiber, does not go wrong in false twisting technology.
Because being mainly used in, copolyester polymer according to the present invention produces the clothes fiber, thus the same with normal polyester, can in copolyester polymer, add anatase titanium dioxide.
Particularly, when the bright fiber of preparation ultraphotic, in copolyester polymer, do not add anatase titanium dioxide.Yet when preparation bright fiber, semi dull fibre and full-dull fiber, the amount of the anatase titanium dioxide that adds in copolyester polymer is respectively 200 to 500ppm, 1,000 to 5,000ppm and 10,000 to 40,000ppm.
In addition, can add barium sulfate in copolyester polymer, be 5wt% or still less in its add-on of copolyester polymer weight, improving the proportion of copolyester fiber, or improves the transparency and the frictional behaviour of copolyester fiber.
The example of polycondensation catalyst comprises antimony-based catalyst such as ANTIMONY TRIOXIDE SB 203 99.8 PCT and antimony acetate; Germanium is catalyst based as germanium dioxide; With Ti-base catalyst such as tetrabutyl titanate and titanium isopropylate.
In the weight of copolyester polymer, the amount that is used to prepare the polycondensation catalyst of copolyester polymer is 0.01 to 5wt%.
According to embodiments of the invention and comparing embodiment, the physicals of raw yarn sample is measured according to following method.
1.I.V. (dl/g): the limiting viscosity of copolyester polymer sample (I.V.) is under 30 ℃, using ratio of mixture is 60/40 the phenol and the solution of sym.-tetrachloroethane, utilizes Ubbelohde (Ubbelohde) viscometer determining.
2. density: the density of copolyester polymer sample uses the density gradient column that comprises tetracol phenixin and normal hexane to measure.
3. fusing point (Tm) and second-order transition temperature (Tg): the fusing point of copolyester polymer sample and second-order transition temperature are to utilize Perkin Elmer, the DSC7 that Inc makes, when the speed with 10 ℃/min heated up, the peak in the analysis fusion range was measured.
4. dyeability:, under 130 ℃, dye with synthesizing polyethylene acetal fiber (Kuralon) navy blue to raw yarn sample administration round pin weaving process.The tinctorial strength of each painted knit goods obtains by the K/S value of calculating by spectrophotometric determination.
The present invention is being carried out under the situation of describe, in general terms, reference example and comparing embodiment can further be understood the present invention, and unless otherwise mentioned, these embodiment provided herein and comparing embodiment only are in order to illustrate, and never want to limit the present invention.
Embodiment 1 to 3 and comparing embodiment 1 and 2
The copolyester polymer that the DEG that comprises predetermined content is provided, has obtained with the CHDM copolymerization.At this moment, the amount of CHDM is described in table 1.
At this on the one hand, the conventional esterification device of being furnished with the distillation and reflux post that uses the preparation polymeric polyester to use is produced copolyester polymer in the mode of semi-batch.
The Detitanium-ore-type Hombitan LW-SU that is used for semi dull fibre that the Sachtleben Chemie GmbH. of Germany produces, being that the amount of 0.3wt% is as matting agent by copolyester polymer weight, with the preparation copolyester polymer, three oxidation ladders are being that the amount of 300ppm is as catalyzer by copolyester polymer weight.The physical properties of copolyester polymer is described in table 1.
Copolyester polymer, is stretched with the described stretch ratio of table 1, to obtain the copolyester raw yarn of 75 DENIER/36 long filaments by spinning with the speed of 2600m/min.Measure the physical properties of this copolyester raw yarn, the results are shown in Table 1.
The gained raw yarn is carried out the round pin weaving process, under 130 ℃, dye with the vinylon navy blue.Calculate the K/S value of using spectrophotometer to survey, estimate the tinctorial strength of each dyeing knit goods, the result is illustrated in the table 1.
Table 1
Embodiment 1 Embodiment 2 Embodiment 3 Comparing embodiment 1 Comparing embodiment 2
CHDM (mole%) 3 6 9 5 30
*The G value 1.20 1.20 1.20 1.80 1.20
I.V.(dl/g) 0.631 0.628 0.617 0.627 0.572
DEG content (wt%) 1.28 1.34 1.46 2.46 1.78
Draw and take out than (%) 1.607 1.607 1.652 1.607 Can not spin
Toughness (g/d) 3.98 3.86 3.71 3.91 -
Elongation (%) 41 44 43 39 -
Density (g/cm 3) 1.3559 1.3541 1.3471 1.3550 -
**K/S 5.84 6.15 6.82 6.12 -
*The G value: (EG+CHDM)/the TPA mol ratio
*K/S: the K/S of conventional polyphenyl dioctyl phthalate second diester is 4.96
Can find out significantly from foregoing description, the invention provides copolyester polymer, it uses the CHDM copolymerization of 1-10mole%, and comprises the DEG of 0.7-2.0wt%.Therefore, the copolyester fiber of producing with this copolyester polymer more can engrain than conventional PET fiber, guarantees to have the same good physicals with conventional PET fiber simultaneously.
In addition, because this copolyester polymer produces by the TPA polymerization technique,, and has good false twisting processibility with the copolyester fiber of this copolyester polymer production so the productive expense of copolyester polymer is very low.
Although the preferred embodiments of the invention are disclosed for explanation, should be understood that for those skilled in the art that under the prerequisite that does not depart from the disclosed scope of the invention of appended claims and spirit multiple change, increase and replacement can be arranged.

Claims (1)

1. one kind is passed through the method that the terephthalic acid polymerization technique is produced copolyester polymer, described method comprises and the hexanaphthene 1 of counting 1-10mole% by diol component, the copolymerization of 4-dimethanol, wherein being positioned at 1.10-1.50 by adjusting G value scope makes copolyester polymer comprise the Diethylene Glycol of 0.7-2.0wt%, described G value is ethylene glycol and hexanaphthene 1, the ratio of the total mole number of 4-dimethanol and the mole number of terephthalic acid.
CNB2004100446127A 2003-09-16 2004-05-17 Copolymeization palyester polymer of copolymerized by hexamethylene and deep dyed copolymerization polyester fibre prepared by it Expired - Lifetime CN1303127C (en)

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KR0064133/2003 2003-09-16
KR10-2003-0064133A KR100506891B1 (en) 2003-09-16 2003-09-16 Copolyester polymer copolymerized with cyclohexane 1,4-dimethanol and deeply dyeable copolyester fiber made therefrom

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CN1303127C true CN1303127C (en) 2007-03-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05170884A (en) * 1991-12-18 1993-07-09 Mitsubishi Kasei Corp Copolyester, and hollow container and stretched film made therefrom
US5348699A (en) * 1994-03-02 1994-09-20 Eastman Chemical Company Fibers from copolyester blends
US5442036A (en) * 1994-09-06 1995-08-15 Eastman Chemical Company Branched copolyesters especially suitable for extrusion blow molding
JPH0948860A (en) * 1995-08-03 1997-02-18 Mitsubishi Chem Corp Sheet made of polyester copolymer and three-dimensionally molded product from the same
KR100950380B1 (en) * 2003-05-23 2010-03-29 주식회사 포스코 Roller cleaning apparatus for roller table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05170884A (en) * 1991-12-18 1993-07-09 Mitsubishi Kasei Corp Copolyester, and hollow container and stretched film made therefrom
US5348699A (en) * 1994-03-02 1994-09-20 Eastman Chemical Company Fibers from copolyester blends
US5442036A (en) * 1994-09-06 1995-08-15 Eastman Chemical Company Branched copolyesters especially suitable for extrusion blow molding
JPH0948860A (en) * 1995-08-03 1997-02-18 Mitsubishi Chem Corp Sheet made of polyester copolymer and three-dimensionally molded product from the same
KR100950380B1 (en) * 2003-05-23 2010-03-29 주식회사 포스코 Roller cleaning apparatus for roller table

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CN1597726A (en) 2005-03-23
KR20050027761A (en) 2005-03-21
TWI240774B (en) 2005-10-01
JP2005089731A (en) 2005-04-07
TW200512335A (en) 2005-04-01
KR100506891B1 (en) 2005-08-08

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Assignee: Hyosung chemical (Jiaxing) Co.,Ltd.

Assignor: Hyosung Corp.

Contract record no.: 2010990000257

Denomination of invention: Copolymeization palyester polymer of copolymerized by hexamethylene and deep dyed copolymerization polyester fibre prepared by it

Granted publication date: 20070307

License type: Exclusive License

Open date: 20050323

Record date: 20100507

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Effective date of registration: 20181205

Address after: Seoul, South Kerean

Patentee after: Xiaoxing Tianxi

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Patentee before: Hyosung Corp.

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Granted publication date: 20070307