CN111005079A - Method for manufacturing ultra-high molecular weight polyethylene monofilament fiber - Google Patents
Method for manufacturing ultra-high molecular weight polyethylene monofilament fiber Download PDFInfo
- Publication number
- CN111005079A CN111005079A CN201911309554.9A CN201911309554A CN111005079A CN 111005079 A CN111005079 A CN 111005079A CN 201911309554 A CN201911309554 A CN 201911309554A CN 111005079 A CN111005079 A CN 111005079A
- Authority
- CN
- China
- Prior art keywords
- molecular weight
- weight polyethylene
- high molecular
- ultra
- monofilament fiber
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- D01D5/06—Wet spinning methods
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
- D10B2321/0211—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene high-strength or high-molecular-weight polyethylene, e.g. ultra-high molecular weight polyethylene [UHMWPE]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides a method for manufacturing ultra-high molecular weight polyethylene monofilament fiber, belonging to the field of fine ropes such as fishing lines, medical sewing lines and the like. Solves the technical problem that the existing jelly glue spinning method has no spinnability to the ultra-high molecular weight polyethylene monofilament fiber. It comprises the following steps: mixing ultrahigh molecular weight polyethylene powder and a solvent in proportion to prepare a dissolved solution; mixing ultra-high molecular weight polyethylene powder and a solvent in proportion to prepare a swelling solution; mixing the dissolved solution and the swelling solution in proportion to prepare a uniform mixed solution; extruding the uniformly mixed liquid, spraying a monofilament by a spinneret plate, cooling and drafting the monofilament by a coagulating bath to form gel filaments, wherein the spinneret plate is provided with spinneret single holes; controlling oil of the gel yarn, standing for a certain time, performing post-spinning processing, and performing strand silk bundling, tension frame, pre-stretching, extraction bath, drying, multistage multi-section stretching and finished yarn winding according to the post-spinning processing. It is mainly used for manufacturing the ultra-high molecular weight polyethylene monofilament fiber.
Description
Technical Field
The invention belongs to the field of fine ropes such as fishing lines and medical sewing lines, and particularly relates to a manufacturing method of ultra-high molecular weight polyethylene monofilament fibers.
Background
The superfine denier ultra-high molecular weight polyethylene fiber for preparing fine line rope products such as fishing lines, medical sewing lines and the like has extremely poor spinnability, and the prepared rope also needs to be post-processed, and the specific working procedures are as follows: twisting and unwinding → winding tube → weaving → hanging glue and hanging color. The cord thus produced is not only time and labor consuming, but also environmentally unfriendly. Products such as fishing lines and the like produced by the process have the defects of easy generation of marks expansion, coiling, poor water cutting performance and the like; the nylon monofilament fishing line has low strength; the current technology for producing ultra-high molecular weight polyethylene fibers is a gel spinning method, and monofilaments produced by the method have no spinnability.
Disclosure of Invention
The invention provides a manufacturing method of an ultra-high molecular weight polyethylene monofilament fiber, aiming at solving the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for manufacturing ultra-high molecular weight polyethylene monofilament fiber comprises the following steps:
the method comprises the following steps: heating and stirring 0.08% -0.12% of ultrahigh molecular weight polyethylene powder and 99.88% -99.92% of solvent in a dissolving kettle to prepare a dissolving solution, and cooling the prepared dissolving solution to form a paste;
step two: heating 20-30% of ultra-high molecular weight polyethylene powder and 70-80% of solvent in a swelling kettle and stirring to prepare swelling liquid;
step three: mixing the dissolved solution and the swelling solution which are cooled into paste according to the proportion of 7-12 percent, and stirring and high shearing the mixture by a stirring kettle to prepare a uniform mixed solution;
step four: extruding the uniformly mixed liquid by a double-screw extruder, metering by a metering pump, spraying monofilaments by a spinneret plate, cooling by a coagulating bath treatment mechanism, drafting by a drafting device, and feeding into a filament containing trolley to form gel filaments;
step five: controlling oil of the gel silk, standing for a certain time, and then carrying out post-spinning processing;
step six: in the post-spinning processing, the gel silk is firstly subjected to strand silk bundling, placed into a tension frame for finishing, pre-stretched in four rollers and five rollers, subjected to extraction bath treatment by using an extracting agent, subjected to multistage stretching after being dried by a drying oven, and finally wound;
and a spinneret plate in the fourth step is provided with spinneret single holes, and the aperture range of the spinneret single holes is 2 mm-10 mm.
Further, the solvent in the first step is mineral oil.
Further, the solvent in the second step is mineral oil or decalin.
Furthermore, the extractant in the sixth step is hydrocarbon, dichloromethane or tetrachloromethane.
Furthermore, the heating temperature in the dissolving kettle in the first step is 80-120 ℃, and the stirring time is 1-3 hours.
Furthermore, the temperature of the swelling kettle in the second step is 80-120 ℃, and the stirring time is 1-3 hours.
Furthermore, the stirring time of the stirring kettle in the third step is 1-2 hours.
Further, the draft ratio of the draft device in the fourth step is 0.5 to 2 times.
Furthermore, in the step five, the oil control and standing time of the gel silk is 96-144 hours.
Furthermore, the single spinneret hole is a concentric reducing hole, the diameter of one end of the single spinneret hole is 4-10 mm, and the diameter of the other end of the single spinneret hole is 2-8 mm.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the problem that the gel spinning method has no spinnability to the ultra-high molecular weight polyethylene monofilament fiber. The blank of the ultra-high molecular weight polyethylene monofilament fiber is filled, the ultra-high molecular weight polyethylene monofilament prepared by the improved spinneret plate has all the advantages of the existing ultra-high molecular weight polyethylene fiber, has the characteristics of time saving, labor saving, good environmental protection, light weight, high strength, good wear resistance, difficult coiling, good water cutting property and the like, can be directly used as a thread rope such as a fishing line, saves the post-processing processes such as weaving and the like when the existing superfine denier ultra-high molecular weight polyethylene fiber is used for preparing the fishing line, and can be directly used as the thread rope such as the fishing line by coiling.
Drawings
FIG. 1 is a schematic view of the process of step four of the present invention;
FIG. 2 is a block diagram of a post-spinning process according to the present invention;
fig. 3 is a schematic view of a spinneret plate according to the present invention;
FIG. 4 is a schematic cross-sectional view of a single orifice of the spinneret of the present invention.
1-double screw extruder, 2-metering pump, 3-spinneret, 4-coagulating bath processing mechanism, 5-filament containing trolley, 6-drafting device, and 301-spinneret single hole.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1 to 4, the method for manufacturing the ultra-high molecular weight polyethylene monofilament fiber according to the present embodiment includes the following steps:
the method comprises the following steps: heating and stirring 0.08% -0.12% of ultrahigh molecular weight polyethylene powder and 99.88% -99.92% of solvent in a dissolving kettle to prepare a dissolving solution, and cooling the prepared dissolving solution to form a paste;
step two: heating 20-30% of ultra-high molecular weight polyethylene powder and 70-80% of solvent in a swelling kettle and stirring to prepare swelling liquid;
step three: mixing the dissolved solution and the swelling solution which are cooled into paste according to the proportion of 7-12 percent, and stirring and high shearing the mixture by a stirring kettle to prepare a uniform mixed solution;
step four: extruding the uniformly mixed liquid by a double-screw extruder 1, metering by a metering pump 2, spraying monofilaments by a spinneret plate 3, cooling by a coagulating bath treatment mechanism 4, drafting by a drafting device 6, and then feeding into a filament containing trolley 5 to form gel filaments;
step five: controlling oil of the gel silk, standing for a certain time, and then carrying out post-spinning processing;
step six: in the post-spinning processing, the gel silk is firstly subjected to strand silk bundling, placed into a tension frame for finishing, pre-stretched in four rollers and five rollers, subjected to extraction bath treatment by using an extracting agent, subjected to multistage stretching after being dried by a drying oven, and finally wound;
and a spinneret plate 3 in the fourth step is provided with spinneret single holes 301, and the aperture range of the spinneret single holes 301 is 2 mm-10 mm.
In the embodiment, the used raw materials are ultra-high molecular weight polyethylene powder, the preparation process of the solution is that 0.08-0.12% of the ultra-high molecular weight polyethylene powder and 99.88-99.92% of mineral oil are heated and stirred in a dissolving kettle, the heating temperature is 80-120 ℃, the stirring time is 1-3 hours, and the prepared solution is placed in a dissolving bucket to be frozen into a pasty body for standby; in the preparation process of the swelling solution, 20 to 30 percent of ultra-high molecular weight polyethylene powder and 70 to 80 percent of mineral oil or decalin are heated and stirred in a swelling kettle, the heating temperature is between 80 and 120 ℃, and the stirring time is between 1 and 3 hours; mixing the solution cooled into paste and the swelling solution prepared just by mixing according to the proportion of 7-12 percent for 1-2 hours in a stirring kettle and preparing a uniform mixed solution by high shear; extruding the uniformly mixed liquid by a double-screw extruder 1, metering by a metering pump 2, ejecting monofilaments by a spinneret plate 3, carrying out coagulation bath cooling by a coagulation bath treatment mechanism 4, drafting by a drafting device 6, and then entering into a filament containing trolley 5 to form gel filaments, wherein the spinneret plate used for preparing the ultra-high molecular weight polyethylene fibers at present is porous, the aperture range is 0.4 mm-1.2 mm, while the spinneret plate 3 used in the embodiment is provided with a spinneret single hole 301, the aperture range of the spinneret single hole 301 is 2 mm-10 mm, preferably, the spinneret single hole 301 is a concentric reducing hole, the diameter of one end is 4-10 mm, and the diameter of the other end is 2-8 mm; controlling oil of the gel silk and standing for 96-144 hours, and then carrying out post-spinning processing, wherein the flow of the post-spinning processing is strand silk bundling → tension frame → pre-stretching → extraction bath → drying → multi-stage stretching → winding of finished silk, and the extraction agent adopted by the extraction bath is hydrocarbon or dichloromethane or tetrachloromethane.
The above method for manufacturing an ultra-high molecular weight polyethylene monofilament fiber provided by the present invention is described in detail, and the principle and the implementation manner of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method for manufacturing ultra-high molecular weight polyethylene monofilament fiber is characterized by comprising the following steps: it comprises the following steps:
the method comprises the following steps: heating and stirring 0.08% -0.12% of ultrahigh molecular weight polyethylene powder and 99.88% -99.92% of solvent in a dissolving kettle to prepare a dissolving solution, and cooling the prepared dissolving solution to form a paste;
step two: heating 20-30% of ultra-high molecular weight polyethylene powder and 70-80% of solvent in a swelling kettle and stirring to prepare swelling liquid;
step three: mixing the dissolved solution and the swelling solution which are cooled into paste according to the proportion of 7-12 percent, and stirring and high shearing the mixture by a stirring kettle to prepare a uniform mixed solution;
step four: extruding the uniformly mixed liquid by a double-screw extruder (1), metering by a metering pump (2), spraying monofilaments by a spinneret plate (3), cooling in a coagulating bath by a coagulating bath treatment mechanism (4), drafting by a drafting device (6), and then feeding into a filament containing trolley (5) to form gel filaments;
step five: controlling oil of the gel silk, standing for a certain time, and then carrying out post-spinning processing;
step six: in the post-spinning processing, the gel silk is firstly subjected to strand silk bundling, placed into a tension frame for finishing, pre-stretched in four rollers and five rollers, subjected to extraction bath treatment by using an extracting agent, subjected to multistage stretching after being dried by a drying oven, and finally wound;
and a spinneret plate (3) in the fourth step is provided with spinneret single holes (301), and the aperture range of the spinneret single holes (301) is 2-10 mm.
2. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: the solvent in the step one is mineral oil.
3. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: and the solvent in the second step is mineral oil or decahydronaphthalene.
4. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: and the extractant in the sixth step is hydrocarbon or dichloromethane or tetrachloromethane.
5. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: in the first step, the heating temperature in the dissolving kettle is 80-120 ℃, and the stirring time is 1-3 hours.
6. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: in the second step, the heating temperature in the swelling kettle is 80-120 ℃, and the stirring time is 1-3 hours.
7. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: and the stirring time of the stirring kettle in the third step is 1-2 hours.
8. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: the draft multiple of the draft device (6) in the fourth step is 0.5-2 times.
9. The method for manufacturing ultra-high molecular weight polyethylene monofilament fiber according to claim 1, wherein the method comprises the following steps: and in the fifth step, the oil control and standing time of the gel wires is 96-144 hours.
10. The method of claim 1, wherein the ultra-high quality polyethylene monofilament fiber comprises: the single spinneret holes (301) are concentric reducing holes, the diameter of one end is 4-10 mm, and the diameter of the other end is 2-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911309554.9A CN111005079B (en) | 2019-12-18 | 2019-12-18 | Method for manufacturing ultra-high molecular weight polyethylene monofilament fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911309554.9A CN111005079B (en) | 2019-12-18 | 2019-12-18 | Method for manufacturing ultra-high molecular weight polyethylene monofilament fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111005079A true CN111005079A (en) | 2020-04-14 |
| CN111005079B CN111005079B (en) | 2021-09-03 |
Family
ID=70116716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911309554.9A Active CN111005079B (en) | 2019-12-18 | 2019-12-18 | Method for manufacturing ultra-high molecular weight polyethylene monofilament fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111005079B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609250A (en) * | 2020-12-07 | 2021-04-06 | 青岛信泰科技有限公司 | Method for preparing ultra-high molecular weight polyethylene coarse denier fiber monofilament by gel method |
| CN114775070A (en) * | 2022-04-23 | 2022-07-22 | 浙江毅聚新材料有限公司 | Preparation method of ultra-high molecular weight polyethylene fiber, spinneret plate assembly used by preparation method and obtained multi-filament yarn |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405367A (en) * | 2001-08-13 | 2003-03-26 | 中纺投资发展股份有限公司 | Method for preparing extra high molecular polyethylene high-concentrated solution for spinning |
| CN101956238A (en) * | 2010-08-24 | 2011-01-26 | 北京同益中特种纤维技术开发有限公司 | Method for preparing ultrahigh molecular weight polyethylene fiber spinning solution |
| CN101967686A (en) * | 2010-09-21 | 2011-02-09 | 中国科学院宁波材料技术与工程研究所 | Method for preparing ultra-high molecular weight polyethylene fiber spinning solution |
| EP2308922A1 (en) * | 2009-10-08 | 2011-04-13 | Hong Jen Textile Co. Ltd. | Ultra-high molecular weight polyethylene (uhmwpe)/inorganic nanocomposite material and high performance fiber manufacturing method thereof |
| CN102505158A (en) * | 2011-10-25 | 2012-06-20 | 中国科学院宁波材料技术与工程研究所 | High-concentration preparation method for ultra-high molecular weight polyethylene fiber |
| US20150119545A1 (en) * | 2013-10-30 | 2015-04-30 | Sk Innovation Co.,Ltd. | Method of fabricating thermal conductive polymer |
| CN108950711A (en) * | 2018-09-06 | 2018-12-07 | 山东莱威新材料有限公司 | A kind of superhigh molecular weight polyethylene flat silk and preparation method thereof |
| CN109468699A (en) * | 2018-09-11 | 2019-03-15 | 江苏恒辉安防股份有限公司 | Compound ultra high molecular weight polyethylene fiber and preparation method thereof |
| CN110318116A (en) * | 2019-05-29 | 2019-10-11 | 长青藤高性能纤维材料有限公司 | A kind of preparation method of extra-high strong ultra high molecular weight polyethylene fiber |
-
2019
- 2019-12-18 CN CN201911309554.9A patent/CN111005079B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405367A (en) * | 2001-08-13 | 2003-03-26 | 中纺投资发展股份有限公司 | Method for preparing extra high molecular polyethylene high-concentrated solution for spinning |
| EP2308922A1 (en) * | 2009-10-08 | 2011-04-13 | Hong Jen Textile Co. Ltd. | Ultra-high molecular weight polyethylene (uhmwpe)/inorganic nanocomposite material and high performance fiber manufacturing method thereof |
| CN101956238A (en) * | 2010-08-24 | 2011-01-26 | 北京同益中特种纤维技术开发有限公司 | Method for preparing ultrahigh molecular weight polyethylene fiber spinning solution |
| CN101967686A (en) * | 2010-09-21 | 2011-02-09 | 中国科学院宁波材料技术与工程研究所 | Method for preparing ultra-high molecular weight polyethylene fiber spinning solution |
| CN102505158A (en) * | 2011-10-25 | 2012-06-20 | 中国科学院宁波材料技术与工程研究所 | High-concentration preparation method for ultra-high molecular weight polyethylene fiber |
| US20150119545A1 (en) * | 2013-10-30 | 2015-04-30 | Sk Innovation Co.,Ltd. | Method of fabricating thermal conductive polymer |
| CN108950711A (en) * | 2018-09-06 | 2018-12-07 | 山东莱威新材料有限公司 | A kind of superhigh molecular weight polyethylene flat silk and preparation method thereof |
| CN109468699A (en) * | 2018-09-11 | 2019-03-15 | 江苏恒辉安防股份有限公司 | Compound ultra high molecular weight polyethylene fiber and preparation method thereof |
| CN110318116A (en) * | 2019-05-29 | 2019-10-11 | 长青藤高性能纤维材料有限公司 | A kind of preparation method of extra-high strong ultra high molecular weight polyethylene fiber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609250A (en) * | 2020-12-07 | 2021-04-06 | 青岛信泰科技有限公司 | Method for preparing ultra-high molecular weight polyethylene coarse denier fiber monofilament by gel method |
| CN112609250B (en) * | 2020-12-07 | 2022-04-15 | 青岛信泰科技有限公司 | Method for preparing ultra-high molecular weight polyethylene coarse denier fiber monofilament by gel method |
| CN114775070A (en) * | 2022-04-23 | 2022-07-22 | 浙江毅聚新材料有限公司 | Preparation method of ultra-high molecular weight polyethylene fiber, spinneret plate assembly used by preparation method and obtained multi-filament yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111005079B (en) | 2021-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111005079B (en) | Method for manufacturing ultra-high molecular weight polyethylene monofilament fiber | |
| CN105200550B (en) | A kind of low melting point antibacterial special polyester monofilament and its processing method | |
| CN101671856B (en) | Ultra-fine denier nylon stable fiber production method | |
| CN105648572A (en) | Special polyester filaments for black fine denier industry, and preparation method of special polyester filament | |
| CN110512294B (en) | Sheath-core type composite monofilament, production method and application thereof | |
| CN101851794B (en) | Method for preparing modified polypropylene monofilaments for processing small-size fishing rope | |
| CN101851795B (en) | Method for processing high-performance modified polyethylene monofilaments for manufacturing fishing net | |
| CN101851797B (en) | Method for preparing fishing flexible blended and modified polyethylene monofilaments | |
| CN102839432A (en) | Preparation method of ultra-high-speed spinning polyester pre-oriented yarn | |
| WO2013131216A1 (en) | Carbon fiber core rod production process, and key device therefor | |
| CN101886298B (en) | Preparation method of ultra-high molecular weight polyethylene monofilaments | |
| WO2018040691A1 (en) | Multi-hole ultra-soft superfine denier polyester fibre and preparation method therefor | |
| CN104562273A (en) | Method for processing fishing net thread by nylon | |
| CN1081686C (en) | Wet PVA-crosslinking spinning technology | |
| CN106319678A (en) | Super-soft wool-like porous polyester and preparation method thereof | |
| CN105696102A (en) | Method for preparing polyphenylene sulfide short fibers by direct melt extrusion of polyphenylene sulfide powder | |
| CN106319651A (en) | Preparation method of chinlon 6 fine denier stretch yarns | |
| CN104862793A (en) | Method for producing fibers used for twisted threads | |
| US20230349078A1 (en) | Skin-friendly fish scale protein modified nylon-spandex fabric and its processing technology | |
| WO2019210650A1 (en) | Preparation technique for low-melting-point polyamide fiber | |
| CN104562249A (en) | Fishing net wire molding process | |
| CN114592247A (en) | Hollow three-dimensional crimped polylactic acid short fiber, and preparation method and device system thereof | |
| CN114045561A (en) | Method for preparing special-shaped cross-section precursor for carbon fiber from acrylic fiber | |
| CN111270330B (en) | Coarse monofilament ultra-high molecular weight polyethylene fiber and preparation method and application thereof | |
| CN112680843A (en) | Production process of composite moisture-absorbing quick-drying polyester low-stretch yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |