CN104911731A - Polyester fiber and production method thereof - Google Patents
Polyester fiber and production method thereof Download PDFInfo
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- CN104911731A CN104911731A CN201510316644.6A CN201510316644A CN104911731A CN 104911731 A CN104911731 A CN 104911731A CN 201510316644 A CN201510316644 A CN 201510316644A CN 104911731 A CN104911731 A CN 104911731A
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- polyester fiber
- branching agent
- polyoxyethylene
- chain branching
- polyester
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Abstract
The invention relates to the field of spinning, and discloses a polyester fiber and a production method thereof, containing polyethylenephthalate and polyoxyethylene, wherein the average molecular weight of polyoxyethylene is less than 5000g/mol. The production method of the polyester fiber comprises the following steps: heating polyoxyethylene and a chain transfer agent and then introducing into polyethylenephthalate, fusing to form a polyester composition; drying the polyester composition and then carrying out melt spinning, and spinning to produce the polyester fiber with good water absorption and chromaticity. According to the invention, the problems of poor water absorption and poor chromaticity of the polyester of the prior art are solved.
Description
Technical field
The present invention relates to field of textiles, particularly relate to a kind of polyester fiber and manufacture method thereof.
Background technology
Polyester fiber, due to its excellent process based prediction model, is widely used in garment manufacturing industry, along with the raising of people's living standard, while pursuing for outward appearance, to the comfortableness of clothes with functionally to have higher requirement.
In prior art, in order to obtain the polyester fiber improved, have using alkali soluble copolymer polyester as pore former, carry out co-blended spinning with fibre-forming polymer and obtain water-absorbing fast-drying fiber, what have utilizes the modification of mylar to improve dyeability, by the polyester of ethylene glycol terephthalate copolymerization cyclohexane cyclohexanedimethanodibasic thus formed composite fibre.
Present inventor, in the process realizing the embodiment of the present application technical scheme, at least finds to there is following technical problem in prior art:
Carry out co-blended spinning with alkali soluble copolymer polyester and fibre-forming polymer and obtain water-absorbing fast-drying fiber, the stripping property on top layer obtains certain improvement, but the stripping property of internal layer is bad, the water absorption rate of fiber is not greatly improved, utilize the modification of mylar to improve chromatic method, need under the environment of High Temperature High Pressure, polyester fiber just can be made painted.
Summary of the invention
The present invention, by providing a kind of polyester fiber and manufacture method thereof, solves the problem that in prior art, polyester fiber water imbibition is poor, dyeability is poor.
For achieving the above object, the technical solution used in the present invention is: a kind of polyester fiber, comprises polyethylene terephthalate and polyoxyethylene, and wherein, described polyoxyethylated mean molecule quantity is less than 5000g/mol.
Further, described polyester fiber also comprises chain branching agent, and the consumption of described chain branching agent is less than 0.0014mol.
Further, described chain branching agent comprises ethoxylation chain branching agent, and described ethoxylation chain branching agent is selected from ethoxylated glycerol, ethoxylation pentaerythrite, and ethoxylated trimethylolpropane.
Further, the mass percent of described polyoxyethylene in described polyester fiber is 4% ~ 20%.
Further, the mass percent of described polyoxyethylene in described polyester fiber is 12% ~ 20%.
A kind of method manufacturing polyester fiber, described method comprises following steps: (1) will be incorporated in described polyethylene terephthalate after described polyoxyethylene and the heating of described chain branching agent, form poly-polyester composition (2) and carry out melt spinning by after described poly-polyester composition dries, be spun into and there is good water imbibition and chromatic polyester fiber.
Further, described polyoxyethylated mean molecule quantity is 300g/mol ~ 1000g/mol.
Further, the poly-polyester composition that step 1 is formed, comprises glycol monomer, the diacid monomer that aromatics is non-substituted, and branching agent monomer.
Further, the intrinsic viscosity of the poly-polyester composition of step 1 formation is at least 0.73dl/g.
Further, described polyoxyethylene and described chain branching agent heating-up temperature are 35 DEG C ~ 60 DEG C.
One or more technical scheme provided by the invention, at least has following technique effect or advantage:
1, the polyester fiber in the present invention, polyoxyethylated mean molecule quantity is less than 5000g/moll, and chain branching agent comprises ethoxylation chain branching agent, makes polyester fiber have good water imbibition and dyeability.
2, the method for manufacture polyester fiber provided by the invention, introduce with polyethylene terephthalate by after polyoxyethylene and side chain agent heating thereof, the poly-polyester composition formed easily can be woven into filiform, and polyoxyethylene mean molecule quantity is less than 5000g/mol, molecule orientation and degree of crystallinity low, be easy to water suction and dyeing.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing that uses required in describing embodiment and Reference numeral are briefly described, apparently, accompanying drawing in the following describes is only the embodiment of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 provides the dyeing property figure of polyester fiber for the embodiment of the present invention;
The absorptive experimental result picture of polyester fiber that Fig. 2 provides for the embodiment of the present invention.
Description of reference numerals:
PEG: represent the mass percent of polyoxyethylene at described polyester fiber,
K/S value: the rate of dyeing representing polyester fiber, the larger account for color of K/S value is darker, and dyeability is stronger,
Water absorption rate: the water absorption rate representing polyester fiber, the larger expression water imbibition of Water absorption values is better.
Detailed description of the invention
The embodiment of the present invention is by being incorporated in polyethylene terephthalate by polyoxyethylene and chain branching agent, and melting forms poly-polyester composition, then makes polyester fiber, efficiently solves the problem that in prior art, polyester fiber water imbibition is poor, dyeability is poor.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
Prepare the polyethylene terephthalate of q.s and appropriate polyoxyethylene and chain branching agent, the polyoxyethylene mean molecule quantity wherein selected is less than 5000g/mol, the consumption of chain branching agent is less than 0.0014 mole, by polyoxyethylene and chain branching agent Hybrid Heating, then to join in polyethylene terephthalate and melting forms poly-polyester composition, melt spinning is carried out by after described poly-polyester composition dries, be spun into and there is absorptive polyester fiber, refer to Fig. 2, when not adding polyoxyethylene, the water absorption rate of polyester fiber is 0.08, when polyoxyethylated mass percent is respectively 4%, 10%, when 20%, water absorption rate is respectively 0.3, 0.47, 0.36, polyoxyethylene and chain branching agent and polyethylene terephthalate form low molecular poly-polyester composition, be easy to dye at normal temperatures and pressures, refer to Fig. 1, when not adding polyoxyethylene, the K/S value of polyester fiber is 8, along with the change of polyoxyethylene mass percent, K/S value also changes, the dyeability of polyester fiber becomes certain proportionate relationship with polyoxyethylene in the mass percent of described polyester fiber.
Embodiment one
Mean molecule quantity is selected to be the polyoxyethylene of 300g/mol, ethoxylation chain branching agent in chain branching agent is selected from oxygen nitro, ethoxylation pentaerythrite, and ethoxylated trimethylolpropane, the consumption of chain branching agent is 0.0003mol, and polyoxyethylene and chain branching agent are heated to 45 DEG C, join polyethylene terephthalate again, form poly-polyester composition, in poly-polyester composition, polyoxyethylated mass percent is 4%, and poly-polyester composition intrinsic viscosity is 0.78dl/g.
Embodiment two
Mean molecule quantity is selected to be the polyoxyethylene of 600g/mol, ethoxylation chain branching agent in chain branching agent is selected from oxygen nitro, ethoxylation pentaerythrite, and ethoxylated trimethylolpropane, the consumption of chain branching agent is 0.0006mol, and polyoxyethylene and chain branching agent are heated to 55 DEG C, join polyethylene terephthalate again, form poly-polyester composition, in poly-polyester composition, polyoxyethylated mass percent is 10%, and poly-polyester composition intrinsic viscosity is 0.85dl/g.
Embodiment three
Mean molecule quantity is selected to be the polyoxyethylene of 1000g/mol, ethoxylation chain branching agent in chain branching agent is selected from oxygen nitro, ethoxylation pentaerythrite, and ethoxylated trimethylolpropane, the consumption of chain branching agent is 0.0010mol, and polyoxyethylene and chain branching agent are heated to 60 DEG C, join polyethylene terephthalate again, form poly-polyester composition, in poly-polyester composition, polyoxyethylated mass percent is 20%, and poly-polyester composition intrinsic viscosity is 0.92dl/g.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
1, the polyester fiber in the present invention, polyoxyethylated mean molecule quantity is less than 5000g/moll, and chain branching agent comprises ethoxylation chain branching agent, makes polyester fiber have good water imbibition and dyeability.
2, the method for manufacture polyester fiber provided by the invention, introduce with polyethylene terephthalate by after polyoxyethylene and side chain agent heating thereof, the poly-polyester composition formed easily can be woven into filiform, and polyoxyethylene mean molecule quantity is less than 5000g/mol, molecule orientation and degree of crystallinity low, be easy to water suction and dyeing.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a polyester fiber, is characterized in that, comprises polyethylene terephthalate and polyoxyethylene, and wherein, described polyoxyethylated mean molecule quantity is less than 5000g/mol.
2. polyester fiber according to claim 1, is characterized in that, also comprises chain branching agent, and the consumption of described chain branching agent is less than 0.0014mol.
3. polyester fiber according to claim 2, is characterized in that, described chain branching agent comprises ethoxylation chain branching agent, and described ethoxylation chain branching agent is selected from ethoxylated glycerol, ethoxylation pentaerythrite, and ethoxylated trimethylolpropane.
4. polyester fiber according to claim 1, is characterized in that, the mass percent of described polyoxyethylene in described polyester fiber is 4% ~ 20%.
5. polyester fiber according to claim 1, is characterized in that, the mass percent of described polyoxyethylene in described polyester fiber is 12% ~ 20%.
6. manufacture a method for the polyester fiber as described in claim 1-5, it is characterized in that, described method comprises following steps:
(1) by being incorporated in described polyethylene terephthalate after described polyoxyethylene and the heating of described chain branching agent, poly-polyester composition is formed;
(2) carry out melt spinning by after described poly-polyester composition dries, be spun into and there is good water imbibition and chromatic polyester fiber.
7. the method for manufacture polyester fiber according to claim 6, is characterized in that, described polyoxyethylated mean molecule quantity is 300g/mol ~ 1000g/mol.
8. the method for manufacture polyester fiber according to claim 6, is characterized in that, the poly-polyester composition that step 1 is formed, and comprises glycol monomer, the diacid monomer that aromatics is non-substituted, and branching agent monomer.
9. the method for manufacture polyester fiber according to claim 6, is characterized in that, the intrinsic viscosity of the poly-polyester composition that step 1 is formed is at least 0.73dl/g.
10. the method for manufacture polyester fiber according to claim 6, is characterized in that, the heating-up temperature of described polyoxyethylene and described chain branching agent is 35 DEG C ~ 60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316644.6A CN104911731A (en) | 2015-06-10 | 2015-06-10 | Polyester fiber and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316644.6A CN104911731A (en) | 2015-06-10 | 2015-06-10 | Polyester fiber and production method thereof |
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| CN104911731A true CN104911731A (en) | 2015-09-16 |
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| CN201510316644.6A Pending CN104911731A (en) | 2015-06-10 | 2015-06-10 | Polyester fiber and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220270A (en) * | 2015-10-30 | 2016-01-06 | 无锡市长安曙光手套厂 | A kind of polyester fiber and preparation method thereof |
| CN105386154A (en) * | 2015-11-27 | 2016-03-09 | 宁波三邦超细纤维有限公司 | Antistatic imitation cotton polyester-chinlon composite ultra-fine fiber and production method |
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|---|---|---|---|---|
| US3558557A (en) * | 1966-10-10 | 1971-01-26 | Sandoz Ltd | Copolyesters,their production and uses |
| US4092299A (en) * | 1976-06-23 | 1978-05-30 | Monsanto Company | High draw ratio polyester feed yarn and its draw texturing |
| CN1247240A (en) * | 1998-09-10 | 2000-03-15 | 卢吉齐默尔股份公司 | Copolymer fiber |
| CN1697853A (en) * | 2003-11-21 | 2005-11-16 | 齐默尔股份公司 | Method for producing pet films |
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2015
- 2015-06-10 CN CN201510316644.6A patent/CN104911731A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558557A (en) * | 1966-10-10 | 1971-01-26 | Sandoz Ltd | Copolyesters,their production and uses |
| US4092299A (en) * | 1976-06-23 | 1978-05-30 | Monsanto Company | High draw ratio polyester feed yarn and its draw texturing |
| CN1247240A (en) * | 1998-09-10 | 2000-03-15 | 卢吉齐默尔股份公司 | Copolymer fiber |
| CN1697853A (en) * | 2003-11-21 | 2005-11-16 | 齐默尔股份公司 | Method for producing pet films |
Non-Patent Citations (1)
| Title |
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| 张龙贵等: "长支链支化制备高熔体强度PET研究进展", 《化工新型材料》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220270A (en) * | 2015-10-30 | 2016-01-06 | 无锡市长安曙光手套厂 | A kind of polyester fiber and preparation method thereof |
| CN105386154A (en) * | 2015-11-27 | 2016-03-09 | 宁波三邦超细纤维有限公司 | Antistatic imitation cotton polyester-chinlon composite ultra-fine fiber and production method |
| CN105386154B (en) * | 2015-11-27 | 2017-10-27 | 宁波三邦超细纤维有限公司 | Antistatic imitative cotton polyester-nylon composite superfine fibre and production method |
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Application publication date: 20150916 |
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