CN106435821A - Blended and melted sea-island fibers and ultrafine fibers as well as preparation method thereof - Google Patents
Blended and melted sea-island fibers and ultrafine fibers as well as preparation method thereof Download PDFInfo
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- CN106435821A CN106435821A CN201610859615.9A CN201610859615A CN106435821A CN 106435821 A CN106435821 A CN 106435821A CN 201610859615 A CN201610859615 A CN 201610859615A CN 106435821 A CN106435821 A CN 106435821A
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- Prior art keywords
- sea
- island
- polyamide
- fibre
- island fibre
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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
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
- D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Multicomponent Fibers (AREA)
Abstract
The invention discloses blended and melted sea-island fibers and ultrafine fibers as well as a preparation method thereof. An island component is polyamide and a sea component is a waterborne polyester compound; and the sea component can be dissolved in hot water without the need of an alkaline solution. The preparation method of the polyamide sea-island fibers comprises the steps of blending, melting and spinning polyamide and waterborne polyester, and furthermore, putting the sea-island fibers into the hot water and carrying out water weight reduction treatment to remove a polyester sea component, so as to obtain the polyamide ultrafine fibers. The method for preparing the ultrafine fibers is simple and efficient; and a water weight reduction process has a green and environment-friendly process and the dissolved sea component is easy to recycle and reutilize, so that the method has no pollution to the environment. The prepared ultrafine fibers can be used for fourth-generation ultrafine fiber leather, silk-imitation fabrics, suede fabrics, artificial down heat-preservation materials, cleaning cloth, dustproof masks and adsorption materials.
Description
Technical field
The invention belongs to functional fibre technical field, more particularly to a kind of can be with the non-figured islands-in-sea of water decrement treatment fibre
Dimension, superfine fibre and preparation method thereof.
Background technology
Sea-island fibre is to be embedded in, with superfine form, the fiber that formed in another kind of polymer by a kind of polymer, due to
Its dispersion phase fibril is gained the name in island shape in fibre section.Sea-island fibre can obtain superfine fibre after dissolving sea component.
Sea-island fibre has figured type and not two kinds of production methods of figured type, not figured type be two kinds of polymer by a definite proportion
Melt extrude spinning after example mixing granulation or directly mixing, with single screw rod one pack system spinning pack spinning, obtain blending island fibre
Dimension, in polymer, " island " group is divided into polyamide (PA), and " sea " group is divided into polyethylene (PE) or polystyrene (PS), is extracted out with toluene
Fibrillation；Due to waterborne polyester section the succeeding in developing of (CoPET), figured sea-island staple fibre arises at the historic moment, generally with PA and
CoPET or conventional polyester (PET) and CoPET melt extrude composite spinning respectively, compound with twin screw composite spinneret pack conjugation
Spinning, alkali solubility fibrillation, obtain and be combined sea-island fibre.
However, during figured sea-island staple fibre is not produced, " sea " phase component dissolves organic solvent used and reclaims difficulty, right
Environmental pollution is larger, the problems such as also bring inflammable, explosive, advocates under the overall situation of green production in Present Global, this side
Method has not met the requirement in epoch；In the long fibre production of Ding Dao island, alkali soluble polyester CoPET is generally adopted in the market
" sea " phase component raw material that cuts into slices as production sea-island fibre, but during dipping by lye fibrillation（Caustic reduction processing）,
" island " phase structure can be influenced to different extents, and yet suffers from the not environmentally problem of lysate.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, and providing a kind of directly can carry out decrement treatment with hot water
Sea-island fibre and preparation method thereof, referred to as " water decrement " technique, the fiber forms ultra-fine fibre pure hot water is molten after " sea " component
Dimension, effectively the generation of the pollutant of minimizing production process, environmental protection, meet current green manufacturing, Green Development theory, significantly
Reduce production cost.
Realization the technical scheme is that：
A kind of blended melting sea-island fibre, the part including island and the part in sea, the part on the island is polyamide PA, the portion in sea
It is divided into waterborne polyester；The mass percent of polyamide is 30-70%, balance of waterborne polyester；
The waterborne polyester is dissolved in 85-95 DEG C of hot water, and its fusing point is that 202 ± 5 DEG C, softening point is 65 ± 5 DEG C.
The relative viscosity of the polyamide PA is 2.4-3.1, and polyamide is polycaprolactam PA6 or polyhexamethylene adipamide
Any one of middle PA66.
The preparation method of described blended melting sea-island fibre, preparation process is as follows：
（1）Polyamide section is put in vacuum drying oven and is dry 2 hours, baking temperature is to put 80 DEG C, by waterborne polyester section
Dry 10 hours in vacuum drying oven, 50 DEG C of baking temperature；By dried polyamide section, waterborne polyester section by not
Same conveyance conduit input blending bunker is mixed；
（2）Mixed material entrance screw extruder is carried out melt blending；Then spinning is carried out by spinneret, through drawing-off
And after drying and shaping, drafting multiple is 2.0-4.0 times, prepared sea-island fibre.
The step（2）Four area's heating-up temperature of middle screw machine is 210 ~ 245 DEG C.
The step（2）Middle spinning temperature is 230 ~ 270 DEG C.
The step（2）Middle drying and shaping adopt five area's mode of heatings, each area's temperature be respectively 80 DEG C, 75 DEG C, 70 DEG C, 65
℃、60℃.
The step（2）Drawing-off is carried out under 80 DEG C of water bath condition, and drafting multiple is 2.0-4.0 times.
Sea-island fibre prepared by the present invention can be used to prepare superfine polyamide fiber.
Sea-island fibre prepares the method for superfine polyamide fiber：Sea-island fibre is opened in 85-95 DEG C of hot water
Fine process；Polyester components are removed, process time is 0.5 ~ 2 hour.
The invention has the beneficial effects as follows：
（1）In the inventive method, mass fraction ratio is blended by regulating and controlling polyamide and waterborne polyester, to prepare under different proportion
Polyamide/waterborne polyester blending islands-in-sea type fibre and polyamide sea-island fibre.In the present invention, the preparation method letter of superfine fibre
Single, it is not necessary to add toxic organic solvents or caustic alkali solvent can just be realized shelling " sea " phase component in sea-island fibre
From, the superfine polyamide fiber that island distributed mutually is uniform, diameter is thinner is prepared, and " island " phase constituent is not damaged, molten by hot water
From " sea " component be easily recycled, production process is environmentally friendly, can form industrial-scale production；
（2）It is 0.03 ~ 0.7dtex according to prepared superfine fibre fiber number in the inventive method, for artificial synthetic leather, emulation
Silk fabrics, artificial suede, skiing and water skiing clothes, high density fabric, artificial eider down, cleaning cloth, dust mask, air filtration material
Material.As fiber is superfine, the fabric that is made into the fiber has that soft, fine and smooth cunning is glutinous, even dyeing, drapability are good, inhales
Moist strong the features such as.
（3）Drying and shaping temperature setting five area's mode of heatings from high to low, successive elimination fiber is produced in FEOL
Raw internal stress, improves its dimensional stability, fixes its drawing-off effect.
Specific embodiment
Below for the present invention specific embodiment, described embodiment be in order to further describe the present invention, rather than
Limit the present invention.
Embodiment 1
The present embodiment chooses polycaprolactam PA6 as the part on island, and the part in sea is waterborne polyester A-PET, wherein gathers in oneself
The mass percent of amide PA6 is 50%, and the mass percent of waterborne polyester A-PET is 50%.
The preparation method of the sea-island fibre of the present embodiment is：
（1）Polycaprolactam PA6 section is put in vacuum drying oven and is dry 2 hours, baking temperature is 80 DEG C, after drying, gather oneself
The moisture content of lactams PA6 is 500ppm, waterborne polyester is placed in vacuum drying oven and is dry 10 hours, 50 DEG C of baking temperature,
After drying, the moisture content of waterborne polyester is 20ppm；
（2）Dried polycaprolactam PA6 section, waterborne polyester section are input into blending bunker by different conveyance conduits enter
Row mixing；
（3）Mixed material entrance single-screw extrusion machine is carried out melt blending, four area's heating-up temperature of single-screw extrusion machine is
210 ~ 245 DEG C, then spinning is carried out by spinneret, spinning temperature is 230 DEG C -270 DEG C, to carry out cooling and blow in spinning process
Wind, tow through excess temperature be 18 DEG C, relative humidity be 65%, speed for 0.2 ~ 0.3m/s cooling dry, obtain come into being polyamides
Amine/waterborne polyester blended fiber；
（4）By nascent polyamide/waterborne polyester blended fiber after oil groove oils, then through pre- network, the first godet, second
Godet drawing-off, using 80 DEG C of water-bath drawing-offs, 2.0 ~ 4.0 times of drafting multiple, carries out mechanical winding, crispation number after master network
It is adjusted to 16/25mm；Then relaxation heat setting being carried out in 80 DEG C, 75 DEG C, 70 DEG C, 65 DEG C, 60 DEG C of five area, finally presses 51mm length
The polyamide sea-island fibre fiber number that degree cut-out is obtained is the sea-island fibre of 8.7dtex.
Sea-island fibre fracture strength manufactured in the present embodiment reaches 4.2cN/dtex, oil content（0.3±0.05）%.
The sea-island fibre for obtaining is carried out water decrement 0.5 hour in 90 DEG C of hot water, molten leave away except polyester components, can obtain
PA6 superfine fibre to single fiber 0.09 ~ 0.7dtex of fiber number.
Embodiment 2
The present embodiment chooses polyhexamethylene adipamide PA66 as the part on island, and the part in sea is waterborne polyester, wherein gathers in oneself
The mass percent of amide PA6 is 30%, and the mass percent of waterborne polyester is 70%.
The preparation method of the sea-island fibre of the present embodiment is with embodiment 1.
The fracture strength of sea-island fibre manufactured in the present embodiment is for can reach 3.9cN/dtex, oil content（0.3±
0.05）%.
Obtained sea-island fibre is carried out water decrement 1 hour in 85 DEG C of hot water, molten leave away except polyester components, can obtain
PA6 superfine fibre to single fiber 0.08 ~ 0.68dtex of fiber number.
Embodiment 3
The present embodiment chooses polyhexamethylene adipamide PA66 as the part on island, and the part in sea is waterborne polyester, wherein gathers oneself two
The mass percent of acyl hexamethylene diamine PA66 is 70%, and the mass percent of waterborne polyester is 30%.
The preparation method of the sea-island fibre of the present embodiment is with embodiment 1.
The fracture strength of sea-island fibre manufactured in the present embodiment is for can reach 4.5cN/dtex, oil content（0.3±
0.05）%.
Obtained sea-island fibre is carried out water decrement 2 hours in 95 DEG C of hot water, molten leave away except polyester components, can obtain
PA66 superfine fibre to single fiber 0.07 ~ 0.86dtex of fiber number.
Ultimate principle and principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (8)
1. a kind of blended melting sea-island fibre, the part including island and the part in sea, it is characterised in that：The part on the island is poly-
Amide, the part in sea is waterborne polyester.
2. blended melting sea-island fibre according to claim 1, it is characterised in that：The matter of polyamide in the sea-island fibre
Amount percentage ratio is 30-70%, balance of waterborne polyester.
3. blended melting sea-island fibre according to claim 1, it is characterised in that：The waterborne polyester is at 85-95 DEG C
Dissolve in hot water, its fusing point is that 202 ± 5 DEG C, softening point is 65 ± 5 DEG C.
4. blended melting sea-island fibre according to claim 1, it is characterised in that：The relative viscosity of the polyamide is
2.4-3.1, polyamide is any one in polycaprolactam or polyhexamethylene adipamide.
5. the preparation method of the blended melting sea-island fibre described in claim 1, it is characterised in that step is as follows：
（1）Polyamide section is put in vacuum drying oven and is dry 2 hours, baking temperature is to put 80 DEG C, by waterborne polyester section
Dry 10 hours in vacuum drying oven, 50 DEG C of baking temperature；By dried polyamide section, waterborne polyester section by not
Same conveyance conduit input blending bunker is mixed；
（2）Mixed material entrance screw extruder is carried out melt blending；Then spinning is carried out by spinneret, through drawing-off
And after drying and shaping, prepared sea-island fibre；Wherein four area's heating-up temperature of screw machine is 210 ~ 245 DEG C, and spinning temperature is 230 ~ 270
DEG C, drying and shaping adopts five area's mode of heatings, and each area's temperature is respectively 80 DEG C, 75 DEG C, 70 DEG C, 65 DEG C, 60 DEG C.
6. the preparation method of blended melting sea-island fibre according to claim 5, it is characterised in that：The step（2）?
Drawing-off is carried out under 80 DEG C of water bath condition, and drafting multiple is 2.0-4.0 times.
7. the application of the blended melting sea-island fibre described in claim 1, it is characterised in that：Polyamide is prepared using sea-island fibre
Superfine fibre.
8. the application of blended melting sea-island fibre according to claim 7, it is characterised in that：Sea-island fibre prepares polyamide
The method of superfine fibre is：Sea-island fibre is carried out in 85-95 DEG C of hot water fibrillation process, process time is 0.5 ~ 2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859615.9A CN106435821A (en) | 2016-09-29 | 2016-09-29 | Blended and melted sea-island fibers and ultrafine fibers as well as preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859615.9A CN106435821A (en) | 2016-09-29 | 2016-09-29 | Blended and melted sea-island fibers and ultrafine fibers as well as preparation method thereof |
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| CN106435821A true CN106435821A (en) | 2017-02-22 |
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| CN201610859615.9A Pending CN106435821A (en) | 2016-09-29 | 2016-09-29 | Blended and melted sea-island fibers and ultrafine fibers as well as preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675508A (en) * | 2017-09-20 | 2018-02-09 | 天守(福建)超纤科技股份有限公司 | A kind of island super fiber leather processing technology |
| CN110725023A (en) * | 2018-07-17 | 2020-01-24 | 中国科学院大连化学物理研究所 | Preparation method of ultrathin cavity composite microfiber material based on microfluidic technology |
| WO2021073009A1 (en) | 2019-10-18 | 2021-04-22 | 上海凯赛生物技术股份有限公司 | Polyamide sea-island fiber, preparation method therefor, and use thereof |
| CN118547397A (en) * | 2024-07-24 | 2024-08-27 | 东华大学 | Preparation method of nano polyphenylene sulfide fiber |
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| CN1580338A (en) * | 2003-08-08 | 2005-02-16 | 三芳化学工业股份有限公司 | Method for manufacturing light superfine fiber base cloth |
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| CN105113273A (en) * | 2015-09-02 | 2015-12-02 | 安安(中国)有限公司 | Production method of superfine fiber synthetic leather with density gradient structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675508A (en) * | 2017-09-20 | 2018-02-09 | 天守(福建)超纤科技股份有限公司 | A kind of island super fiber leather processing technology |
| CN107675508B (en) * | 2017-09-20 | 2020-04-17 | 天守(福建)超纤科技股份有限公司 | Sea-island microfiber leather processing technology |
| CN110725023A (en) * | 2018-07-17 | 2020-01-24 | 中国科学院大连化学物理研究所 | Preparation method of ultrathin cavity composite microfiber material based on microfluidic technology |
| WO2021073009A1 (en) | 2019-10-18 | 2021-04-22 | 上海凯赛生物技术股份有限公司 | Polyamide sea-island fiber, preparation method therefor, and use thereof |
| CN118547397A (en) * | 2024-07-24 | 2024-08-27 | 东华大学 | Preparation method of nano polyphenylene sulfide fiber |
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Application publication date: 20170222 |