CN101144206B - Multi-micropore polyester fiber and preparation method thereof - Google Patents
Multi-micropore polyester fiber and preparation method thereof Download PDFInfo
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- CN101144206B CN101144206B CN2007101561501A CN200710156150A CN101144206B CN 101144206 B CN101144206 B CN 101144206B CN 2007101561501 A CN2007101561501 A CN 2007101561501A CN 200710156150 A CN200710156150 A CN 200710156150A CN 101144206 B CN101144206 B CN 101144206B
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Abstract
The present invention provides a method for preparing hot melt microporous fiber. Raw materials comprise water soluble polymer and regular polyester, after being dried, the raw materials are groundedwith a plastic grinder into about 80 to 120 mesh microscopic particles, the water soluble polymer and the regular polyester are uniformly mixed in a mixing machine with the ratio of 30-50 percent to 70-50 percent, then the microscopic particles are made into masterbatchs with 3-5 mm particle diameter with a SJSH-30 twin-screw extruder and a XPLQ-100 cold granulating crusher, after being dried, themasterbatchs are prepared into fiber on a spinning machine, after being draft by 1.5 times, the fiber is dissolved in the hot water with 100 DEG C, after being dried, the weight loss rate of the fibers reaches 10 percent, mill pores with 0.5-2 micronpore diameters are distributed on the surfaces and internal parts, and thus the fiber has high water absorbability and air permeability.
Description
Technical field:
What the present invention relates to is that a kind of surface and inside are penetrated with micropore polyester fibre of a large amount of micropores and preparation method thereof, belongs to textile fabric and manufacturing technology field.
Background technology
In field of textiles, polyester fiber has many good performances, output maximum in synthetic fiber, but polyester fiber belongs to hydrophobic fibre, moisture absorption, permeability is poor, feeling of oppression and heat is arranged when causing wearing, being easy to generate static during dry weather causes taking uncomfortable, seriously fettered its application, for improving the moisture absorption of polyester fiber, airing function, people often adopt and way natural or the artificial fibre blending, but but very limited to the hydrophilicity that improves fiber, another kind method is to handle fiber or fabric with the surface conditioning agent that contains hydrophilic radical, also can improve the hydrophily of polyester fiber, but because polyester fiber inside lacks active centre, so durability is relatively poor, after promptly repeatedly washing, hydrophilicity can fade away.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existence, and provide a kind of have good moisture absorption, perspire, airing function, can be widely used in fields such as underwear, sportswear, bedding, can regulate the relation between the moisture content and humidity between underclothes and skin surface (weather in the clothes), the sense of touch that had both had cotton products, the micropore polyester fibre of the salubrious dry sensation of tool and preparation method again.
The objective of the invention is to finish by following technical solution, it is made up of conventional resin and water-soluble modified polymer resin, and they are in 70～50%: the even blend of 30～50% ratios, and after dissolving the water-soluble modified polymer resin of 8-12% behind the melt spinning, make, its surface and inside are evenly distributed with the micropore that a large amount of diameters are about 0.5～2um aperture.
Described water-soluble modified polymer resin has soluble water-soluble polymer in 100 ℃ of boiling water, behind the long filament of making behind it and even blend of conventional resin and the melt spinning, in 100 ℃ hot water, dissolve 10% back and constitute micropore polyester fibre of the present invention.Described water-soluble modified polymer resin is mainly represented by following structure, about 245 ℃ of fusing points.
Described water-soluble modified polymer resin is to be two bases with terephthalic acid (TPA), ethylene glycol, with the two hydroxyl ethyl esters of M-phthalic acid-5-sulfonate or M-phthalic acid-5-sulfonate as the 3rd component, with polyethylene glycol (PEG) as the 4th component, adopt " direct esterification method " process route, also add other components such as M-phthalic acid, adipic acid or its ester in the reaction system.
A kind of preparation method of aforesaid micropore polyester fibre, it adopts a kind of water-soluble polymer can be water-soluble, that have good moisture pick-up properties and ionic conductance performance, as the molten component of going, be ground into 75-85 purpose fine particle after being dried, with onesize normal polyester particle in 30～50%: the even blend of 70～50% ratios, extruding pelletization on double screw extruder; To melt spinning, stretching after the master batch drying of having made, and this long filament dissolved 55-65 minute in hot water after, the dissolving weight-loss ratio reaches 8-12%, pull oven dry out, make still to keep 20～40% water-soluble copolymer component in the fiber, the surface and inner be evenly distributed with a large amount of diameters be about 0.5～2um aperture micropore, have excellent moisture absorption, a fiber of permeability.
The present invention adopts a kind of soluble water-soluble polymer in 100 ℃ of boiling water that has, and is ground into the fine particle about 80 orders after being dried, with onesize normal polyester particle evenly blend in proportion, extruding pelletization on double screw extruder; To melt spinning, stretching after the master batch drying of having made, and this long filament dissolved 60 minutes in 100 ℃ hot water after, the dissolving weight-loss ratio reaches 10%, pulls oven dry out.
The present invention compared with prior art, have good moisture absorption, perspire, airing function, can be widely used in fields such as underwear, sportswear, bedding, can regulate the relation between the moisture content and humidity between underclothes and skin surface (weather in the clothes), the sense of touch that had both had cotton products, again the salubrious dry sensation of tool etc. characteristics.
The specific embodiment
The present invention will be described in detail below in conjunction with specific embodiment: micropore polyester fibre of the present invention is made up of conventional resin and water-soluble modified polymer resin, and they are in 70～50%: the even blend of 30～50% ratios, and after dissolving the water-soluble modified polymer resin of 8-12% behind the melt spinning, make, its surface and inside are evenly distributed with the micropore that a large amount of diameters are about 0.5～2um aperture.
Described water-soluble modified polymer resin has soluble water-soluble polymer in 100 ℃ of boiling water, behind the long filament of making behind it and even blend of conventional resin and the melt spinning, in 100 ℃ hot water, dissolve 10% back and constitute micropore polyester fibre of the present invention.
Described water-soluble modified polymer resin is mainly represented by following structure, about 245 ℃ of fusing points.
Described water-soluble modified polymer resin is to be two bases with terephthalic acid (TPA), ethylene glycol, with the two hydroxyl ethyl esters of M-phthalic acid-5-sulfonate or M-phthalic acid-5-sulfonate as the 3rd component, with polyethylene glycol (PEG) as the 4th component, adopt " direct esterification method " process route, also add other components such as M-phthalic acid, adipic acid or its ester in the reaction system.
Added the 3rd, the 4th a large amount of monomers among the present invention in the WSPET polymerization process, slice surface is clamminess easily, is very easy to be bonded to piece, contains sulfonic acid group in the section simultaneously, is not easy drying, so adopt the dynamic vacuum drying; Its drying process is:
A. cold conditions charging, dry initial temperature are controlled at below 50 ℃;
B. the pre-crystallization stage heating rate of strict control guarantees that pre-crystallization fully finishes;
C. 24 hours drying times, dry back water-soluble polymeric water content of matter is below 50ppm.
A kind of preparation method of aforesaid micropore polyester fibre, it adopts a kind of water-soluble polymer can be water-soluble, that have good moisture pick-up properties and ionic conductance performance, as the molten component of going, be ground into 75-85 purpose fine particle after being dried, with onesize normal polyester particle in 30～50%: the even blend of 70～50% ratios, extruding pelletization on double screw extruder; To melt spinning, stretching after the master batch drying of having made, and this long filament dissolved 55-65 minute in hot water after, the dissolving weight-loss ratio reaches 8-12%, pull oven dry out, make still to keep 20～40% water-soluble copolymer component in the fiber, the surface and inner be evenly distributed with a large amount of diameters be about 0.5～2um aperture micropore, have excellent moisture absorption, a fiber of permeability.
The present invention adopts a kind of soluble water-soluble polymer in 100 ℃ of boiling water that has, and is ground into the fine particle about 80 orders after being dried, with onesize normal polyester particle evenly blend in proportion, extruding pelletization on double screw extruder; To melt spinning, stretching after the master batch drying of having made, and this long filament dissolved 60 minutes in 100 ℃ hot water after, the dissolving weight-loss ratio reaches 10%, pulls oven dry out.
After water-soluble polymer drying of the present invention, the cooling, on plastic crusher, it is ground into the powder (being called the A component among the present invention) about 80～120 orders.
Also use normal polyester among the present invention, after its crystallization, drying, cooling, be ground into the powder (being called the B component among the present invention) about 80～120 orders.
With A and two kinds of components of B according to weight ratio 30～50%: 70～50% ratio is evenly mixed in mixer; utilize the cold pelleter of SJSH-30 double screw extruder and XPLQ-100 to be made into the master batch that particle diameter is 3～5mm then, its preparation technology is as shown in table 1 below:
Each reaction zone temperature of table 1, pressure
The master batch that contains 30～50% fine water soluble ingredients for preparing, with above-mentioned same drying means drying, use the melt spinning machine spinning, master batch at first is transferred and preheating at feed zone after entering screw rod from barrel, the compressed section compacting that continues, exhaust and fusing gradually, in metering section, further mix plasticizing then, and reach uniform temperature, and be quantitatively transferred to the measuring pump accurate measurement with certain pressure, form long filament by filament spinning component.Adopt the parallel drafting machine that the above-mentioned fiber that is spun into is carried out 1.5 times of drawing-offs then.
The fiber of preparation was placed in 100 ℃ the hot water dissolving 60 minutes, after the drying, the weight-loss ratio of fiber (weight deducts dissolving back weight before the dissolving, again divided by weight before the dissolving) reaches 10%, the micropore in surface and inner 0.5～2um aperture that evenly distributes, fiber suction and permeability are good.
Embodiment 1: the present invention adopts leaching to prepare micropore polyester fibre, be ground into 80 purpose fine particles after the polymer drying with water-soluble modified dose of interpolation, with onesize normal polyester particle in even blend of ratio in 30%: 70%, extruding pelletization on double screw extruder, to the master batch of having made that contains water soluble ingredient, dry back melt spinning, stretch, this long filament dissolved 60 minutes in 100 ℃ hot water after, the dissolving weight-loss ratio reaches 10%, pull oven dry out, by showing behind the testing electronic microscope, this fiber surface and a large amount of diameters of inner generation are about the micropore in 0.5～2um aperture, owing to still keep 20% hydrophily good water-solubility polymers compositions in the fiber, surface and inner micropore with a large amount of 0.5～2um apertures have good moisture absorption, permeability.
Embodiment 2: the present invention adopts leaching to prepare micropore polyester fibre, be ground into 85 purpose fine particles after the polymer drying with water-soluble modified dose of interpolation, with onesize normal polyester particle in even blend of ratio in 50%: 50%, extruding pelletization on double screw extruder, to the master batch of having made that contains water soluble ingredient, dry back melt spinning, stretch, this long filament dissolved 55 minutes in 100 ℃ hot water after, the dissolving weight-loss ratio reaches 8%, pull oven dry out, by showing behind the testing electronic microscope, this fiber surface and a large amount of diameters of inner generation are about the micropore in 0.5～2um aperture, owing to still keep 40% hydrophily good water-solubility polymers compositions in the fiber, surface and inner micropore with a large amount of 0.5～2um apertures have good moisture absorption, permeability.
Embodiment 3: the present invention adopts leaching to prepare micropore polyester fibre, be ground into 75 purpose fine particles after the polymer drying with water-soluble modified dose of interpolation, with onesize normal polyester particle in even blend of ratio in 40%: 60%, extruding pelletization on double screw extruder, to the master batch of having made that contains water soluble ingredient, dry back melt spinning, stretch, this long filament dissolved 65 minutes in 100 ℃ hot water after, the dissolving weight-loss ratio reaches 12%, pull oven dry out, by showing behind the testing electronic microscope, this fiber surface and a large amount of diameters of inner generation are about the micropore in 0.5～2um aperture, owing to still keep 30% hydrophily good water-solubility polymers compositions in the fiber, surface and inner micropore with a large amount of 0.5～2um apertures have good moisture absorption, permeability.
Claims (6)
1. micropore polyester fibre, it is characterized in that it is made up of normal polyester and water-soluble modified polyester, and they are in 70～50%: the even blend of 30～50% ratios, and behind melt spinning, dissolve 8～12% water-soluble modified polyester and make, its surface and innerly be evenly distributed with the micropore that a large amount of diameters are 0.5～2um aperture.
2. micropore polyester fibre according to claim 1, it is characterized in that described water-soluble modified polyester has soluble characteristic in 100 ℃ of boiling water, the long filament of making behind it and even blend of normal polyester and the melt spinning dissolves 10% back and constitutes micropore polyester fibre of the present invention in 100 ℃ hot water.
3. micropore polyester fibre according to claim 1 and 2 is characterized in that water-soluble modified polyester mainly represented by following structure:
About 245 ℃ of fusing points.
4. micropore polyester fibre according to claim 3, it is characterized in that water-soluble modified polyester is is two bases with terephthalic acid (TPA), ethylene glycol, with the two hydroxyl ethyl esters of M-phthalic acid-5-sulfonate or M-phthalic acid-5-sulfonate as the 3rd component, with polyethylene glycol as the 4th component, adopt " direct esterification method " process route, also add M-phthalic acid, adipic acid or its ester in the reaction system.
5. preparation method as the described micropore polyester fibre of claim 1～4, it is characterized in that adopting a kind of water-soluble modified polyester can be water-soluble, that have good moisture pick-up properties and ionic conductance performance, as the molten component of going, be ground into 75～85 purpose fine particles after being dried, with onesize normal polyester particle in 30～50%: the even blend of 70～50% ratios, extruding pelletization on double screw extruder; To melt spinning, stretching after the master batch drying of having made, and this long filament dissolved 55～65 minutes in hot water after, the dissolving weight-loss ratio reaches 8～12%, pull oven dry out, make still to keep 20～40% water-soluble modified polyester components in the fiber, the surface and inner be evenly distributed with a large amount of diameters be 0.5～2um aperture micropore, have excellent moisture absorption, a fiber of permeability.
6. the preparation method of micropore polyester fibre according to claim 5, it is characterized in that adopting a kind of soluble water-soluble modified polyester in 100 ℃ of boiling water that has, be ground into the fine particle about 80 orders after being dried, with onesize normal polyester particle evenly blend in proportion, extruding pelletization on double screw extruder; To melt spinning, stretching after the master batch drying of having made, and this long filament dissolved 60 minutes in 100 ℃ hot water after, the dissolving weight-loss ratio reaches 10%, pulls oven dry out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101561501A CN101144206B (en) | 2007-10-23 | 2007-10-23 | Multi-micropore polyester fiber and preparation method thereof |
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| CN2007101561501A CN101144206B (en) | 2007-10-23 | 2007-10-23 | Multi-micropore polyester fiber and preparation method thereof |
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| CN101144206A CN101144206A (en) | 2008-03-19 |
| CN101144206B true CN101144206B (en) | 2010-06-02 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619930A (en) * | 2011-05-31 | 2014-03-05 | 弗莱技术股份有限公司 | Forming cellular material by melt-stretching melt-stretchable material |
| CN102400247B (en) * | 2011-08-24 | 2013-09-11 | 杭州泛林科技有限公司 | Method for manufacturing breathable moisture absorption modified polyester fibers |
| CN105951198B (en) * | 2016-05-25 | 2018-07-20 | 浙江纺织服装科技有限公司 | The preparation method of the polyester fiber of activated carbon containing waste wool |
| CN108978046B (en) * | 2018-07-13 | 2021-09-28 | 江苏源源山富数码喷绘科技有限公司 | Preparation method of PET porous fiber membrane |
| CN111349980A (en) * | 2020-02-03 | 2020-06-30 | 江苏银兆新材料科技有限公司 | Method for manufacturing microporous polyester fiber |
| CN111235682A (en) * | 2020-04-16 | 2020-06-05 | 博聚(上海)生态科技有限公司 | Production process of rapidly biodegradable porous polyester fiber |
| CN111996670B (en) * | 2020-08-21 | 2022-07-08 | 北自所(常州)科技发展有限公司 | Production process for forming non-woven fabric |
| CN113373566B (en) * | 2021-05-26 | 2022-04-08 | 苏州普路通纺织科技有限公司 | Vortex blending thick count yarn and production process thereof |
| CN113355777B (en) * | 2021-05-26 | 2022-04-12 | 苏州普路通纺织科技有限公司 | Antistatic vortex spinning production process |
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Assignee: Shanghai Wenlong Chemical Fiber Co.,Ltd. Assignor: Zhejiang Sci-Tech University Contract record no.: 2011330000163 Denomination of invention: Multi-micropore polyester fiber and preparation method thereof Granted publication date: 20100602 License type: Exclusive License Open date: 20080319 Record date: 20110330 |
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Granted publication date: 20100602 Termination date: 20111023 |