CN105483858A - Polyethylene terephthalate complex fiber and preparing method thereof - Google Patents
Polyethylene terephthalate complex fiber and preparing method thereof Download PDFInfo
- Publication number
- CN105483858A CN105483858A CN201511022521.8A CN201511022521A CN105483858A CN 105483858 A CN105483858 A CN 105483858A CN 201511022521 A CN201511022521 A CN 201511022521A CN 105483858 A CN105483858 A CN 105483858A
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- Prior art keywords
- polyethylene terephthalate
- section
- melt
- fibre
- moisture
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
Abstract
The invention discloses a polyethylene terephthalate complex fiber and a preparing method thereof. The polyethylene terephthalate complex fiber is formed by combining two kinds of modified polyethylene terephthalate at the proportion of (3-7):(7-3). The polyethylene terephthalate complex fiber and the preparing method thereof have the following advantages that the polyethylene terephthalate complex fiber has the advantages of SPH being high in rough touch, easy to dye, good in breathability and capable of achieving a bamboo joint effect, while the elasticity of the fiber is better than that of SPH, the hand touch of a fabric is finer and more smooth than that of SPH, and a special gloss is achieved. Meanwhile, the defects that spandex fibers are excess in elasticity, likely to age and lose elasticity, difficult to process, cannot be curled and the like are overcome.
Description
Technical field
The present invention relates to a kind of composite fibre, be specially a kind of polyethylene terephthalate's composite fibre and preparation method thereof, belong to chemical fibre textile technical field.
Background technology
In recent years, technological development and the application of fibre in differentiation are all attached great importance in countries in the world, improve the market competitiveness of enterprise with this, reduce raw material and production cost, increase product designs and varieties.At present, use the ratio of fibre in differentiation generally 40%250% or higher at developed countries and regions, novel fabric matches the fibrous raw material of multi-functional, multicomponent, thin dawn and many alienation (different line density, different contraction, different cross section etc.) in a large number, and to meet, product is multi-functional, high to be emulated and the high performance market demand.Simulation type fibre in differentiation normally with conventional composite fibre materials for material, adopt the fibre modification technology of physics or chemistry, make the pattern of synthetic fiber, texture and performance generation essential change, finally make Fabric Style and wearability produce new change.Along with the development of fiber Specializing Techniques, fibre in differentiation imitates the natural fabric epoch from early stage, enter into the self-growth period of synthetic fiber, the style of its uniqueness and good wearability are accepted by consumer, fibre in differentiation functional also in continuous enhancing.
Summary of the invention
The object of the invention is to provide a kind of polyethylene terephthalate's composite fibre and preparation method thereof, to solve the problems referred to above of prior art.
The object of the invention is to be achieved through the following technical solutions.
A kind of polyethylene terephthalate's composite fibre, through being composited by two kinds of polyethylene terephthalates through modification, two kinds of components are respectively delustring PET (FDPET) and half light PET (SDPET), and two kinds of ratios through the polyethylene terephthalate of modification are (3 ~ 7): (7 ~ 3).Described delustring PET and half light PET all commercially.
The preparation method of above-mentioned polyethylene terephthalate's composite fibre, the steps include:
(1), will cut into slices pre-crystallized: improve section softening point, avoid section to enter drying tower and stick together.
(2), chip drying: remove section moisture, avoid being hydrolyzed in melt spinning process.Be adsorbed on the moisture of slice surface, when pre-crystallized, (temperature reaches about 100 DEG C) just can be easy to evaporation and remove, but the moisture of section inside is combined with the form of chemical bond and section molecular juction, this part is difficult to removing, constantly need set up slice surface and internal steam pressure reduction, first by moisture from section diffusion inside to surface, then to remove further.Baking temperature is at 125-135 DEG C, and drying time is generally at 11 ~ 13 hours;
(3), melt extrude: will to cut into slices melting with screw extruder.
(4), melt filteration device: filter out the impurity in melt, improve spinning effect, extend measuring pump service life.
(5), measuring pump: pressure, accurate measurement are provided; After PBT pump, pressure limit is that after 12.0 ~ 15.0Mpa, PET pump, pressure limit is 10.0 ~ 15.0Mpa;
(6), filament spinning component: melt filtration, makes melt generation shear flow, extrude formation as-spun fibre through spinnerets;
(7), cooling quench: take away heat, reduce below as-spun fibre temperature to freezing point;
(8), boundling oils: increase fibre lubrication, reduce frictional force, eliminate electrostatic.；
(9), network sizing: increase fiber coherent, improve aft-loaded airfoil performance.
(10), coiling and molding: fibrous finished product is wound into spinning cake.
The new elastic fiber that the present invention adopts the many components of twin-screw to produce, creates obvious multiple component structure advantage.The proportion optimizing of raw material has tired, the good elastic recovery feature of excellent stretch-proof by fiber; Dominant bamboo joint structure enhances fabric breathability, make it possess excellent fiber crops feels well elegant sense and good drapability; Many components structures shape subsequent fabric more easy coloring keep the COLOR FASTNESS of higher level.Be applicable to using and developing of knitting and tatting field.
The present invention has following beneficial effect: product of the present invention not only has that SPH picotement is strong, easy dyeing, good permeability, have the feature of ring effect, and elasticity is better than SPH, and fabric panel feel is more fine and smooth and submissive compared with SPH, has special reflecting feel.Compensate for spandex fibre elastic force surplus, without shortcomings such as curling, easy aging mistake bullet, processing difficulties simultaneously.
Accompanying drawing explanation
Fig. 1 is the SEM figure of embodiment product cross section.
Detailed description of the invention
Technical characterstic of the present invention is set forth further below in conjunction with specific embodiment.
A kind of polyethylene terephthalate's composite fibre and preparation method thereof, through being composited by two kinds of polyethylene terephthalates through modification, two kinds of components are respectively delustring PET (FDPET) and half light PET (SDPET), and two kinds of ratios through the polyethylene terephthalate of modification are (3 ~ 7): (7 ~ 3);
Described delustring PET and half light PET all commercially.
As shown in Figure 1, can be found by microscopic examination, SPF fibre section is " peanut shell " shape, there is irregular space between monofilament, and because two kinds of component raw material optical characteristics are different, fibre section presents depth different colours.Because SPF fibre section is " peanut shell " shape, there is irregular space between fiber, add the gas permeability of fabric, because of capillarity, fiber moisture absorbing and sweat releasing, antistatic effect are obvious.Two component raw material are through chemical modification, and optical property there are differences, and cause fabric surface to present special luster effect.
The preparation method that embodiment 1-6 adopts is:
(1), will cut into slices pre-crystallized: improve section softening point, avoid section to enter drying tower and stick together.
(2), chip drying: remove section moisture, avoid being hydrolyzed in melt spinning process.Be adsorbed on the moisture of slice surface, when pre-crystallized, (temperature reaches about 100 DEG C) just can be easy to evaporation and remove, but the moisture of section inside is combined with the form of chemical bond and section molecular juction, this part is difficult to removing, constantly need set up slice surface and internal steam pressure reduction, first by moisture from section diffusion inside to surface, then to remove further.Baking temperature is at 125-135 DEG C, and drying time is generally at 11 ~ 13 hours;
(3), melt extrude: will to cut into slices melting with screw extruder.
(4), melt filteration device: filter out the impurity in melt, improve spinning effect, extend measuring pump service life.
(5), measuring pump: pressure, accurate measurement are provided; After PBT pump, pressure limit is that after 12.0 ~ 15.0Mpa, PET pump, pressure limit is 10.0 ~ 15.0Mpa;
(6), filament spinning component: melt filtration, makes melt generation shear flow, extrude formation as-spun fibre through spinnerets;
(7), cooling quench: take away heat, reduce below as-spun fibre temperature to freezing point;
(8), boundling oils: increase fibre lubrication, reduce frictional force, eliminate electrostatic.；
(9), network sizing: increase fiber coherent, improve aft-loaded airfoil performance.
(10), coiling and molding: fibrous finished product is wound into spinning cake.
The content ratio of PET and PBT that embodiment 1-6 adopts is followed successively by: 3:4,3:7,4:6,5:5,6:4,7:3.
Product obtained by embodiment 1-6 carries out performance test by following method of testing:
1, line density deviation ratio and the test of fineness-unevenness rate are undertaken testing and calculating by GB/T14343-2008 regulation.
2, fracture strength and irregularity thereof, elongation at break and irregularity test thereof are undertaken testing and calculating by GB/T14344-2008 regulation.
3, oil content test is undertaken testing and calculating by method B regulation in GB/T6504.
4, internet pricing test is by FZ/T50001 regulation, adopts and move pin counting method during arbitration.
5, dye uniformity test is tested by GB/T6508 regulation.
6, the hank knotting method manual measurement mode that boiling water shrinkage test specifies by GB/T6505 is tested.
7, the data processing of result of the test presses GB8170 Figure correction rule.
Table 1 embodiment performance project and index
Can be seen by above-mentioned test data: the every physical index of fiber has reached anticipation target all, performance can surmount the main product on market, have that SPH picotement is strong, easy dyeing, good permeability, have the feature of ring effect, and elasticity is better than SPH, fabric panel feel is more fine and smooth and submissive compared with SPH, has special reflecting feel.
The new elastic fiber adopting the many components of twin-screw to produce, creates obvious multiple component structure advantage.The proportion optimizing of raw material has tired, the good elastic recovery feature of excellent stretch-proof by fiber; Dominant bamboo joint structure enhances fabric breathability, make it possess excellent fiber crops feels well elegant sense and good drapability; Many components structures shape subsequent fabric more easy coloring keep the COLOR FASTNESS of higher level.Be applicable to using and developing of knitting and tatting field.
Claims (2)
1. polyethylene terephthalate's composite fibre, it is characterized in that: be through being composited by two kinds of polyethylene terephthalates through modification, two kinds of components are respectively delustring PET and half light PET, and two kinds of ratios through the polyethylene terephthalate of modification are (3 ~ 7): (7 ~ 3).
2. the preparation method of polyethylene terephthalate's composite fibre described in claim 1, is characterized in that: the steps include:
(1), will cut into slices pre-crystallized: improve section softening point, avoid section to enter drying tower and stick together.
(2), chip drying: remove section moisture, avoid being hydrolyzed in melt spinning process.Be adsorbed on the moisture of slice surface, when pre-crystallized, (temperature reaches about 100 DEG C) just can be easy to evaporation and remove, but the moisture of section inside is combined with the form of chemical bond and section molecular juction, this part is difficult to removing, constantly need set up slice surface and internal steam pressure reduction, first by moisture from section diffusion inside to surface, then to remove further.Baking temperature is at 125-135 DEG C, and drying time is generally at 11 ~ 13 hours;
(3), melt extrude: will to cut into slices melting with screw extruder.
(4), melt filteration device: filter out the impurity in melt, improve spinning effect, extend measuring pump service life.
(5), measuring pump: pressure, accurate measurement are provided; After PBT pump, pressure limit is that after 12.0 ~ 15.0Mpa, PET pump, pressure limit is 10.0 ~ 15.0Mpa;
(6), filament spinning component: melt filtration, makes melt generation shear flow, extrude formation as-spun fibre through spinnerets;
(7), cooling quench: take away heat, reduce below as-spun fibre temperature to freezing point;
(8), boundling oils: increase fibre lubrication, reduce frictional force, eliminate electrostatic.；
(9), network sizing: increase fiber coherent, improve aft-loaded airfoil performance.
(10), coiling and molding: fibrous finished product is wound into spinning cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022521.8A CN105483858A (en) | 2015-12-30 | 2015-12-30 | Polyethylene terephthalate complex fiber and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511022521.8A CN105483858A (en) | 2015-12-30 | 2015-12-30 | Polyethylene terephthalate complex fiber and preparing method thereof |
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| CN105483858A true CN105483858A (en) | 2016-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107385527A (en) * | 2017-06-02 | 2017-11-24 | 吴江佳力高纤有限公司 | A kind of TSS high resiliency composite fibre and preparation method thereof |
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| CN101440538A (en) * | 2008-12-31 | 2009-05-27 | 邹祖林 | Novel dual-color side-by-side composite polyester fiber |
| CN102453978A (en) * | 2010-10-25 | 2012-05-16 | 东丽纤维研究所（中国）有限公司 | Alloy polyester fiber and production method thereof |
| CN103014886A (en) * | 2011-09-26 | 2013-04-03 | 江苏中润化纤有限公司 | Elastic polyester drawing yarn |
| CN103628180A (en) * | 2013-12-09 | 2014-03-12 | 盛虹集团有限公司 | Ultra-extinction memory fiber and preparation method |
| CN103789873A (en) * | 2014-02-25 | 2014-05-14 | 盛虹集团有限公司 | Regenerated skin-core structure composite fiber and preparation method thereof |
| CN104831417A (en) * | 2015-05-25 | 2015-08-12 | 四川大学 | Polyester elastomer/PET composite elastic fiber and preparation method thereof |
| CN204676206U (en) * | 2015-05-25 | 2015-09-30 | 四川大学 | A kind of polyester elastomer/PET composite elastic fiber |
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2015
- 2015-12-30 CN CN201511022521.8A patent/CN105483858A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429689A (en) * | 2008-11-27 | 2009-05-13 | 无锡海丝路纺织新材料有限公司 | Superfine fibre material and producing method thereof |
| CN101440538A (en) * | 2008-12-31 | 2009-05-27 | 邹祖林 | Novel dual-color side-by-side composite polyester fiber |
| CN102453978A (en) * | 2010-10-25 | 2012-05-16 | 东丽纤维研究所（中国）有限公司 | Alloy polyester fiber and production method thereof |
| CN103014886A (en) * | 2011-09-26 | 2013-04-03 | 江苏中润化纤有限公司 | Elastic polyester drawing yarn |
| CN103628180A (en) * | 2013-12-09 | 2014-03-12 | 盛虹集团有限公司 | Ultra-extinction memory fiber and preparation method |
| CN103789873A (en) * | 2014-02-25 | 2014-05-14 | 盛虹集团有限公司 | Regenerated skin-core structure composite fiber and preparation method thereof |
| CN104831417A (en) * | 2015-05-25 | 2015-08-12 | 四川大学 | Polyester elastomer/PET composite elastic fiber and preparation method thereof |
| CN204676206U (en) * | 2015-05-25 | 2015-09-30 | 四川大学 | A kind of polyester elastomer/PET composite elastic fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107385527A (en) * | 2017-06-02 | 2017-11-24 | 吴江佳力高纤有限公司 | A kind of TSS high resiliency composite fibre and preparation method thereof |
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Application publication date: 20160413 |
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