CN113481618A - Core-spun hot-melt composite fiber and preparation process thereof - Google Patents
Core-spun hot-melt composite fiber and preparation process thereof Download PDFInfo
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- CN113481618A CN113481618A CN202110860392.9A CN202110860392A CN113481618A CN 113481618 A CN113481618 A CN 113481618A CN 202110860392 A CN202110860392 A CN 202110860392A CN 113481618 A CN113481618 A CN 113481618A
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- Prior art keywords
- composite fiber
- core layer
- core
- skin layer
- layer
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- 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
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- 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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
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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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Multicomponent Fibers (AREA)
Abstract
The invention discloses a core-spun hot-melt composite fiber and a preparation process thereof, and is characterized in that: the composite fiber comprises a core layer and a skin layer coated outside the core layer, wherein the skin layer and the core layer are compounded into composite fiber through a composite spinning component spinneret plate; the melting point of the skin layer is lower than that of the core layer; the preparation process comprises the following steps: melting and extruding by double screws; secondly, carrying out composite spinning on the spinneret plate; cooling, oiling and winding to prepare POY yarn; and fourthly, drawing and elasticizing to prepare the DTY composite fiber. The invention effectively improves the workshop processing environment, reduces the cost and the labor intensity of operators, and improves the product performance.
Description
Technical Field
The invention relates to a composite fiber, in particular to a core-spun hot-melt composite fiber and a preparation process thereof.
Background
The traditional filtering cotton stick, the water-storing, oil-storing and ink-storing cotton core, the water-guiding and ink-guiding cotton core, the special fiber pen point bar, the perfume aromatherapy fiber stick, the liquid mosquito incense volatilization stick and the like generally adopt common DTY fibers, glue is coated on the outer surface of the DTY fibers, and then the DTY fibers are heated and dried by a hot box and pulled out from a mold. In the mode, the production cost is higher, the pungent smell of the glue exists, the production speed is slow, and the labor intensity of operators is high.
Disclosure of Invention
The invention aims to provide a core-spun hot-melt composite fiber and a preparation process thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: the core-spun hot-melt composite fiber comprises a core layer and a skin layer coated outside the core layer, wherein the skin layer and the core layer are compounded into the composite fiber through a composite spinning assembly spinneret plate; the skin layer has a melting point lower than that of the core layer.
In the technical scheme, the skin layer is made of low-melting-point polyester, and the core layer is made of high-melting-point polyester.
Among the above-mentioned technical scheme, the annular equipartition has the multiunit bar groove on the surface of sandwich layer, the bar groove is along the extending direction of sandwich layer axis extends, the degree of depth in bar groove is 1/6 ~ 1/4 of sandwich layer diameter.
In the technical scheme, the melting point of the skin layer is 35 ℃ or higher than that of the core layer.
In order to achieve the purpose, the invention adopts a preparation process of the core-spun hot-melt composite fiber, which comprises the following steps:
firstly, performing melt extrusion on a skin layer raw material by using a first screw, and performing melt extrusion on a core layer raw material by using a second screw;
conveying the melted skin layer raw material and the melted core layer raw material through a skin layer channel and a core layer channel respectively, and compounding the skin layer raw material and the core layer raw material through a spinneret plate of a composite spinning assembly to prepare nascent composite fibers;
thirdly, cooling and oiling the nascent composite fiber sprayed by the spinneret plate;
fourthly, winding the oiled nascent composite limit at high speed to prepare POY protofilament;
fifthly, the POY protofilament is drafted and then sent into a draw texturing machine for draw texturing to prepare the DTY composite fiber.
In the technical scheme, the skin layer raw material and the core layer raw material are dried by drying equipment before melt extrusion.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the core layer and the skin layer with different melting points are adopted and directly compounded by hot melting without using glue, so that the workshop processing environment is improved, the environment is more environment-friendly, and the cost and the labor intensity of operators are reduced;
2. according to the invention, the outer surface of the core layer is provided with a plurality of groups of strip-shaped grooves, so that the liquid storage capacity of the product can be increased, and the liquid storage performance of the product can be improved.
Drawings
Fig. 1 is a schematic structural diagram in a first embodiment of the present invention.
Wherein: 1. a core layer; 2. a skin layer; 3. a strip-shaped groove.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1, the core-spun hot-melt composite fiber comprises a core layer 1 and a skin layer 2 coated outside the core layer, wherein the skin layer and the core layer are compounded into the composite fiber through a composite spinning assembly spinneret plate; the skin layer has a melting point lower than that of the core layer.
According to the invention, the core layer and the skin layer with two different melting points are adopted, and the skin layer bracket is coated outside the core layer, so that the core layer and the skin layer can be tightly attached, and meanwhile, the surface gluing is not required, so that the workshop environment can be effectively improved, no glue odor is generated, and meanwhile, the environment-friendly effect is realized, the cost can be reduced, and the labor intensity of operators is reduced.
The skin layer is made of low-melting-point polyester, and the core layer is made of high-melting-point polyester. The melting point of the skin layer is 35 ℃ or higher than that of the core layer.
The composite material is formed by hot melting and quick compounding of two materials with different melting points, the production efficiency is effectively improved, the compounding quality is good, the melting point difference exists between the two materials, and the two materials are tightly compounded in the compounding process and have good quality.
Referring to fig. 1, a plurality of groups of strip-shaped grooves 3 are annularly and uniformly distributed on the outer surface of the core layer, the strip-shaped grooves extend along the extension direction of the axis of the core layer, and the depth of each strip-shaped groove is 1/6-1/4 of the diameter of the core layer.
In this embodiment, through annular equipartition multiunit bar groove on the surface of sandwich layer, the setting in bar groove can increase composite fiber's stock solution ability, and some liquid can also be stored at these bar inslots, and with the fibrous bar of volume, the stock solution ability is stronger, and live time is also longer, and the effect is better. Moreover, with the bar groove setting at the surface of sandwich layer, the processing of the sandwich layer of also being convenient for like this guarantees that cortex and sandwich layer pass through the spinneret complex when spouting the silk, can be smooth with the outside of cortex cladding at the sandwich layer, the cortex only few part can permeate the bar inslot for the existence in bar groove possesses the stock solution ability.
In order to achieve the purpose, the invention adopts a preparation process of the core-spun hot-melt composite fiber, which comprises the following steps:
firstly, performing melt extrusion on a skin layer raw material by using a first screw, and performing melt extrusion on a core layer raw material by using a second screw;
conveying the melted skin layer raw material and the melted core layer raw material through a skin layer channel and a core layer channel respectively, and compounding the skin layer raw material and the core layer raw material through a spinneret plate of a composite spinning assembly to prepare nascent composite fibers;
thirdly, cooling and oiling the nascent composite fiber sprayed by the spinneret plate;
fourthly, winding the oiled nascent composite limit at high speed to prepare POY protofilament;
fifthly, the POY protofilament is drafted and then sent into a draw texturing machine for draw texturing to prepare the DTY composite fiber.
The skin layer raw material and the core layer raw material are dried by drying equipment before melt extrusion.
Claims (6)
1. A core-spun hot-melt composite fiber is characterized in that: the composite fiber comprises a core layer and a skin layer coated outside the core layer, wherein the skin layer and the core layer are compounded into composite fiber through a composite spinning component spinneret plate; the skin layer has a melting point lower than that of the core layer.
2. The cored hot melt composite fiber of claim 1, wherein: the skin layer is made of low-melting-point polyester, and the core layer is made of high-melting-point polyester.
3. The cored hot melt composite fiber of claim 1, wherein: annular equipartition has a multiunit bar groove on the surface of sandwich layer, the bar groove is along the extending direction of sandwich layer axis extends, the degree of depth in bar groove is 1/6 ~ 1/4 of sandwich layer diameter.
4. The cored hot melt composite fiber of claim 1, wherein: the melting point of the skin layer is 35 ℃ or higher than that of the core layer.
5. A preparation process of core-spun hot-melt composite fiber comprises the following steps:
firstly, performing melt extrusion on a skin layer raw material by using a first screw, and performing melt extrusion on a core layer raw material by using a second screw;
conveying the melted skin layer raw material and the melted core layer raw material through a skin layer channel and a core layer channel respectively, and compounding the skin layer raw material and the core layer raw material through a spinneret plate of a composite spinning assembly to prepare nascent composite fibers;
thirdly, cooling and oiling the nascent composite fiber sprayed by the spinneret plate;
fourthly, winding the oiled nascent composite limit at high speed to prepare POY protofilament;
fifthly, the POY protofilament is drafted and then sent into a draw texturing machine for draw texturing to prepare the DTY composite fiber.
6. The process for preparing a cored hot melt composite fiber according to claim 5, wherein: the skin layer raw material and the core layer raw material are dried by drying equipment before melt extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860392.9A CN113481618A (en) | 2021-07-27 | 2021-07-27 | Core-spun hot-melt composite fiber and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860392.9A CN113481618A (en) | 2021-07-27 | 2021-07-27 | Core-spun hot-melt composite fiber and preparation process thereof |
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| CN113481618A true CN113481618A (en) | 2021-10-08 |
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| CN202110860392.9A Pending CN113481618A (en) | 2021-07-27 | 2021-07-27 | Core-spun hot-melt composite fiber and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541001A (en) * | 2022-03-16 | 2022-05-27 | 彩通(苏州)纳米新材料科技有限公司 | Production process and production equipment for degradable high-low-melting-point high-elastic-sheath-core fibers |
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| CN104975361A (en) * | 2015-06-26 | 2015-10-14 | 张家港欣阳化纤有限公司 | Efficient water-absorbing composite filament and process for producing the same |
| CN105088411A (en) * | 2015-09-25 | 2015-11-25 | 张家港欣阳化纤有限公司 | Wear-resistant sweat-absorbent fiber and preparation method |
| CN205676591U (en) * | 2016-05-25 | 2016-11-09 | 浙江得胜纺织有限公司 | Terylene and Modal blended yarns |
| CN106757443A (en) * | 2016-12-06 | 2017-05-31 | 太仓大唐化纤厂 | A kind of highly hygroscopic ventilative composite fibre with antibacterial action |
| CN208667921U (en) * | 2018-06-14 | 2019-03-29 | 厦门翔鹭化纤股份有限公司 | A kind of blunt fiber optics |
| CN109930219A (en) * | 2017-12-16 | 2019-06-25 | 绍兴锦晨生物科技有限公司 | New-type composite fibre |
| CN110184674A (en) * | 2019-04-30 | 2019-08-30 | 东华大学 | A kind of porous composite fibre of core-skin type and preparation method thereof |
| CN111647964A (en) * | 2020-07-07 | 2020-09-11 | 无锡盛烨特邦新材料科技有限公司 | Glue-free heat-bonding shaping special-shaped composite fiber and production method and application thereof |
| CN113330156A (en) * | 2019-01-30 | 2021-08-31 | 东丽株式会社 | Water-repellent woven knitted fabric, method for producing same, and clothing |
-
2021
- 2021-07-27 CN CN202110860392.9A patent/CN113481618A/en active Pending
Patent Citations (10)
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| CN1732293A (en) * | 2002-12-31 | 2006-02-08 | 阿尔巴尼国际公司 | Grooved-shape monofilaments and the fabrics made thereof |
| CN104975361A (en) * | 2015-06-26 | 2015-10-14 | 张家港欣阳化纤有限公司 | Efficient water-absorbing composite filament and process for producing the same |
| CN105088411A (en) * | 2015-09-25 | 2015-11-25 | 张家港欣阳化纤有限公司 | Wear-resistant sweat-absorbent fiber and preparation method |
| CN205676591U (en) * | 2016-05-25 | 2016-11-09 | 浙江得胜纺织有限公司 | Terylene and Modal blended yarns |
| CN106757443A (en) * | 2016-12-06 | 2017-05-31 | 太仓大唐化纤厂 | A kind of highly hygroscopic ventilative composite fibre with antibacterial action |
| CN109930219A (en) * | 2017-12-16 | 2019-06-25 | 绍兴锦晨生物科技有限公司 | New-type composite fibre |
| CN208667921U (en) * | 2018-06-14 | 2019-03-29 | 厦门翔鹭化纤股份有限公司 | A kind of blunt fiber optics |
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| CN111647964A (en) * | 2020-07-07 | 2020-09-11 | 无锡盛烨特邦新材料科技有限公司 | Glue-free heat-bonding shaping special-shaped composite fiber and production method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541001A (en) * | 2022-03-16 | 2022-05-27 | 彩通(苏州)纳米新材料科技有限公司 | Production process and production equipment for degradable high-low-melting-point high-elastic-sheath-core fibers |
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Application publication date: 20211008 |
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