CN1303961A - Process for preparing poly-esters fibre with excellent water absorbency - Google Patents
Process for preparing poly-esters fibre with excellent water absorbency Download PDFInfo
- Publication number
- CN1303961A CN1303961A CN 99122827 CN99122827A CN1303961A CN 1303961 A CN1303961 A CN 1303961A CN 99122827 CN99122827 CN 99122827 CN 99122827 A CN99122827 A CN 99122827A CN 1303961 A CN1303961 A CN 1303961A
- Authority
- CN
- China
- Prior art keywords
- polyester
- fibre
- stage
- inorganic particulate
- excellent water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Artificial Filaments (AREA)
Abstract
A preparation method of polyester fibre with water absorption property comparable to that of natural fibre is characterized by adding 0.01-50 wt% of hydrophilic inorganic particles selected from calcium oxide particles, magnesium oxide particles, manganese oxide particles and their mixture with grain size of 0.01-50 micrometers at the proper adding time in the stage from polyester polymerization to spinning. Said invented method can make polyester fibre possess excellent water absorption and physical properties, and the addition of low-cost inorganic particles can reduce total cost of fibre production.
Description
The present invention relates to prepare the method for polyester fiber, compare with wool with cotton, this polyester fiber has excellent water imbibition.
Polyester fiber is usually mainly by terephthalic acid (TPA) or aromatic dicarboxylic acid, as 2, and the 6-naphthalene dicarboxylic acids, or its ester derivant and ethylene glycol form through polycondensation.
Polyester fiber has excellent mechanicalness and heat resistance, but compares with natural fabric such as regenerated cellulose, and its water imbibition is poor, and this is because polyester fiber has the structure of high-crystallinity, and is less with the group such as the hydrophilic radical of water affinity in its molecule.Term used herein " water imbibition " is meant the water sucting degree of fibrous matter such as long filament, line, fabric, knitted articles, nonwoven fabric etc.When the needs water imbibition, use polyester fiber can bring problem.
For this reason, Re Men research direction is to develop not only to have excellent water imbibition simultaneously but also keep the polyester fiber of its physical property.
For example, be disclosed among US3329557 and the UK956833 before the spinning polyester and hydrophilic poly alkylene glycol blend.But the polyester fiber that obtains thus not only can not reach gratifying water imbibition, and physical property has been subjected to sizable infringement.
Korean Patent public publication 93-6779 discloses a kind of polyester that is added with organic compound, and this compound has polyalkylene or polyamine as main chain.In Korean Patent public publication 83-397, be disclosed in and add eluant, eluent ROSO in the polyester
3M (wherein R is the alkyl of C1-30 or the alkylaryl of C7-40, and M is alkali metal or alkaline-earth metal), spinning is then carried out wash-out through alkaline aqueous solution and is handled the fiber that obtains porous.The water imbibition of this polyester fiber has obtained significant raising, but that the big shortcoming of one is a cost is too high.Additive price height, the technology increase increases production cost greatly.
The known silicon dioxide granule that adds colloidal state is in addition given the polyester fiber hydrophily now.But same, this can increase production cost.
Therefore, an object of the present invention is to overcome above-mentioned shortcoming of the prior art, provide a kind of preparation not only to have excellent water imbibition but also have the method for the polyester fiber of physical property.
Another object of the present invention provides the production method that can significantly not increase the polyester fiber of production cost.
In one embodiment of the invention, the method that provides a kind of preparation to have excellent water imbibition polyester fiber, suitable interpolation time in the stage before from polyester to spinning wherein, in total weight of fiber, the inorganic particulate of adding 0.01-50% weight.On the one hand, the interpolation time can be selected from the polyester stage, polyester flows into stage of spinneret and polyester and is melted and extrudes the sheet stage under pressure.On the other hand, inorganic particulate is selected from calcium oxide particle, magnesium oxide particle, manganese oxide particle and its mixture, and its size is 0.01-50 μ m.
Polyester is prepared by polycarboxylic acid and polyalcohol usually.For polyester fiber of the present invention, can adopt aromatic binary carboxylic acid or its ester derivant.The example of the aromatic binary carboxylic acid that the present invention is used comprises M-phthalic acid, terephthalic acid (TPA), 2,6-naphthalene dicarboxylic acids, phthalic acid, adipic acid, decanedioic acid and its mixture.Polyalcohol mainly adopts ethylene glycol, also can use a spot of other alcohol, its representational example such as propylene glycol, butanediol, 1,4-cyclohexanediol and neopentyl glycol.
As needs, when producing polyester fiber, can use additive such as heat stabilizer, antitack agent, antioxidant, antistatic agent, UV absorbent etc.
According to the present invention,, when the preparation polyester fiber, adopt inorganic particulate in order to give polyester fiber high hydrophily.Inorganic particulate is selected from calcium oxide particle, magnesium oxide particle, manganese oxide particle and its mixture.
For the joining day of inorganic particulate, can be selected from the polyester fiber polymerization stage, polyester flows into stage of spinneret and polyester and is melted and extrudes the sheet stage under pressure.
In the polyester stage, inorganic particulate preferably just adds after esterif iotacation step is finished or adds in condensation polymerization step.At this moment, the inorganic particulate that is added must can not contain moisture, otherwise can inhibitory reaction.
After the polycondensation polymerization, polyester is transferred to spinneret polyester is carried out spinning adding to depress.In transfer process, can add calcium oxide particle, magnesium oxide particle, manganese oxide particle and its mixture.In this regard,, add inorganic particulate, turn back to then in the residual polymer in the pipe by extracting some polymer in the transfer pipeline out.
When the polyester of polymerization being transferred to extruder production polyester slice, can directly add inorganic particulate.In the present invention, can be used in combination the polyester slice that contains inorganic particulate separately or with other polyester slice.
Usually, calcium oxide can be obtained by calcium carbonate mineral.At first, calcium carbonate mineral is ground into fritter, in stove, generates calcium oxide and carbon dioxide in about 1000 ℃ of roastings.Because calcium carbonate is easy to processing, is easy to obtain, price is low, so calcium carbonate particle is favourable.Run into water, calcium oxide is easy to transform generation calcium oxide (Ca (OH)
2).Therefore, the high-hydrophilic of calcium oxide makes polyester fiber have excellent water imbibition.Improve absorptive this mechanism, magnesia is identical with manganese oxide.
The inorganic particulate size is preferably 0.01-50 μ m.For example, if adopt the inorganic particulate of particle diameter less than 0.01 μ m, water imbibition can not obtain very big improvement.On the other hand, the inorganic particulate greater than 50 μ m can cause fibrous fracture in spinning and aftertreatment technology.Preferably, in the polyester gross weight, use the inorganic particulate of 0.1-50% weight.For example, if amount is little to absorptive improvement less than 0.1% weight, and amount can be destroyed the physical property of polyester during greater than 50% weight.
As mentioned above, inorganic particulate must neither contain water and also not contain impurity, if not, and to bringing adverse influence in spinnability and the aftertreatment technology.In addition, be the immediate cause that causes the polyester mechanical performance to descend owing to there is inorganic particulate in the polyester, so preferably use the high-purity inorganic particle as far as possible.
From the following examples, can clearer understanding be arranged to the present invention.But these embodiment are illustrative, rather than are used for limiting the scope of the invention.
Embodiment 1
In reactor, add 100 weight portion terephthalic acid (TPA)s and 45 weight portion ethylene glycol, under condition of stirring, be heated to 140-230 ℃ of esterification 4 hours then.After every weight portion ethylene glycol adds 0.04 weight portion antimony trioxide (antimontrioxide) and 0.015 weight portion phosphoric acid, generated the polyester I in 4 hours in 230-285 ℃ of polycondensation reaction in vacuum.
The polyester I is solidified with liquid nitrogen, is ground into powder then.Afterwards, the powder with 80 weight portions evenly mixed 30 minutes with the calcium oxide particle of 20 weight portions.Described particle size is 0.01-50 μ m, and mean size is 0.4 μ m.Then, allow homogeneous mixture melt extrude machine and obtain the polyester II by twin-screw.Extruder is operated under vacuum in 240-290 ℃.
The polyester II of the polyester I of 90 weight portions and 10 weight portions is mixed, and in 160 ℃ of dryings 6 hours, fusing was by in the machine that melt extrudes of 290 ℃ of work with hot-air, obtained 75/24 polyester fiber through spinneret.
Embodiment 2
Prepare 75/24 polyester fiber, the different polyester I that is to use 95 weight portions and the polyester II of 5 weight portions in embodiment 1 similar mode.
The Comparative Examples I
In reactor, add 100 weight portion terephthalic acid (TPA)s and 45 weight portion ethylene glycol, under condition of stirring, be heated to 140-230 ℃ of esterification 4 hours then.After every weight portion ethylene glycol adds 0.04 weight portion antimony trioxide and 0.015 weight portion phosphoric acid, generated the polyester I in 4 hours in 230-285 ℃ of polycondensation reaction in vacuum.
The polyester I is solidified with liquid nitrogen, is ground into powder then.Afterwards, the powder with 80 weight portions evenly mixed 30 minutes with the colloidal silica particles of 20 weight portions.Described particle mean size is 0.3 μ m.Then, allow homogeneous mixture melt extrude machine and obtain the polyester III by twin-screw.Described extruder is operated under vacuum in 240-290 ℃.
The polyester III of the polyester I of 90 weight portions and 10 weight portions is mixed, and in 160 ℃ of dryings 6 hours, fusing was by in the machine that melt extrudes of 290 ℃ of work with hot-air, obtained 75/24 polyester fiber through spinneret.
Comparative Examples 2
Prepare 75/24 polyester fiber, the different polyester I that is to use 95 weight portions and the polyester III of 5 weight portions in Comparative Examples 1 similar mode.
Measure the physical property of resulting polyester in embodiment and the Comparative Examples, result such as table 1.
Table 1
| Physical property | Embodiment 1 | Embodiment 2 | The Comparative Examples I | The Comparative Examples II |
| Dawn | ????75/24 | ????75/24 | ????75/24 | ????75/24 |
| Intensity (restraining per dawn) | ????4.78 | ????4.78 | ????4.79 | ????4.79 |
| Percentage elongation (%) | ????38.64 | ????38.32 | ????38.90 | ????38.91 |
| Water imbibition (weight %) | ????8.2 | ????4.3 | ????1.4 | ????1.2 |
As seen from Table 1, method of the present invention provides the polyester fiber of the similar physical property of polyester fiber that has excellent water imbibition and produce with conventional method.Compare with conventional method in addition, benefit of the present invention also has production cost greatly to descend, and this is because the inorganic particulate price is low.
Invention has been described in the mode of example above.Should be appreciated that term used in the literary composition is just in order to illustrate rather than limit the present invention.According to top instruction, also can make many variations to the present invention.Can in appended claim scope, implement so be to be understood that the present invention, and as above detailed description not only.
Claims (3)
1, a kind of preparation has the method for excellent water imbibition polyester fiber, suitable interpolation time in the stage before from polyester to spinning wherein, and in total weight of fiber, the inorganic particulate of adding 0.01-50% weight.
2, the process of claim 1 wherein the interpolation time be selected from the polyester stage, polyester flows into stage of spinneret and polyester and is melted and extrudes the sheet stage under pressure.
3, the process of claim 1 wherein that inorganic particulate is selected from calcium oxide particle, magnesium oxide particle, manganese oxide particle and its mixture, its size is 0.01-50 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99122827 CN1303961A (en) | 1999-12-01 | 1999-12-01 | Process for preparing poly-esters fibre with excellent water absorbency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99122827 CN1303961A (en) | 1999-12-01 | 1999-12-01 | Process for preparing poly-esters fibre with excellent water absorbency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1303961A true CN1303961A (en) | 2001-07-18 |
Family
ID=5282684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99122827 Pending CN1303961A (en) | 1999-12-01 | 1999-12-01 | Process for preparing poly-esters fibre with excellent water absorbency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1303961A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831727A (en) * | 2010-04-01 | 2010-09-15 | 东华大学 | Cotton-simulated terylene short fiber and preparation method thereof |
| CN102127823A (en) * | 2011-01-04 | 2011-07-20 | 北京化工大学 | Formaldehyde catalytic purification fibre and preparation method thereof |
| CN104790209A (en) * | 2015-04-08 | 2015-07-22 | 希雅图（上海）新材料科技股份有限公司 | Production technology for saturated-impregnated non-woven fabric |
| CN113584628A (en) * | 2021-08-02 | 2021-11-02 | 浙江佳人新材料有限公司 | Preparation method of regenerated cool PET polyester fiber |
-
1999
- 1999-12-01 CN CN 99122827 patent/CN1303961A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831727A (en) * | 2010-04-01 | 2010-09-15 | 东华大学 | Cotton-simulated terylene short fiber and preparation method thereof |
| CN102127823A (en) * | 2011-01-04 | 2011-07-20 | 北京化工大学 | Formaldehyde catalytic purification fibre and preparation method thereof |
| CN102127823B (en) * | 2011-01-04 | 2013-01-02 | 北京化工大学 | Formaldehyde catalytic purification fibre and preparation method thereof |
| CN104790209A (en) * | 2015-04-08 | 2015-07-22 | 希雅图（上海）新材料科技股份有限公司 | Production technology for saturated-impregnated non-woven fabric |
| CN113584628A (en) * | 2021-08-02 | 2021-11-02 | 浙江佳人新材料有限公司 | Preparation method of regenerated cool PET polyester fiber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1224640C (en) | Method for preparing uvioresistant polyester by nanometer titania in situ | |
| CN114316542B (en) | High-strength biodegradable plastic and preparation method thereof | |
| CN113861394B (en) | Preparation method of poly (terephthalic acid) -adipic acid-butanediol copolyester | |
| CN1303961A (en) | Process for preparing poly-esters fibre with excellent water absorbency | |
| CN1425704A (en) | Process for preparing antibiotic polyester | |
| CN115505246B (en) | High-temperature-resistant and chemical-resistant PETG material | |
| CN1303960A (en) | Process for preparing poly-esters fibre with excellent water absorbency | |
| CN1205249C (en) | Process for preparing polyester | |
| CN1112393C (en) | Process for preparing high-concentration phosphorus-contained copolyester | |
| CN113372545B (en) | Low-melting-point water-soluble polyester and preparation method thereof | |
| CN213563736U (en) | Functional master batch production system for polyester product | |
| US6258309B1 (en) | Method for the preparation of polyester fibers of excellent water absorbency | |
| KR20220056346A (en) | Polybutyleneterephthalate resin composition and method for preparing thereof | |
| KR100466840B1 (en) | Method for the preparation of the polyester fiber with excellent water absorbency | |
| KR100466841B1 (en) | Method for the preparation of the polyester fiber with excellent water absorbency | |
| CN112375237B (en) | Functional master batch production system for polyester film | |
| CN114573956B (en) | Preparation method of nano magnesium hydroxide modified degradable copolyester | |
| JP2001192934A (en) | Method of producing polyester fiber excellent in water absorption property | |
| CN112375342B (en) | Functional master batch for polyester and preparation method thereof | |
| CN112454716B (en) | Production system for polyester master batch for preparing polyester product | |
| JP2001192935A (en) | Method of producing polyester fiber excellent in water absorption property | |
| CN117186371A (en) | Preparation method and application of copolyester with antibacterial and industrial composting degradability | |
| CN1169858C (en) | Process for preparing copolyester | |
| CN116970155A (en) | Method for slicing low-melting-point polyester | |
| CN117343502A (en) | Transparent toughened PET material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |