CN111809285A - Ultraviolet-resistant aramid yarn and preparation method thereof - Google Patents
Ultraviolet-resistant aramid yarn and preparation method thereof Download PDFInfo
- Publication number
- CN111809285A CN111809285A CN202010490304.6A CN202010490304A CN111809285A CN 111809285 A CN111809285 A CN 111809285A CN 202010490304 A CN202010490304 A CN 202010490304A CN 111809285 A CN111809285 A CN 111809285A
- Authority
- CN
- China
- Prior art keywords
- aramid
- fiber
- ultraviolet
- core
- fibers
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
-
- 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
- D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
- D10B2321/042—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polymers of fluorinated hydrocarbons, e.g. polytetrafluoroethene [PTFE]
-
- 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
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- 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
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
- D10B2321/101—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide modacrylic
-
- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
Abstract
The invention discloses an ultraviolet-resistant aramid yarn, which is a core-spun yarn and comprises outer layer fibers and core fibers, wherein the outer layer fibers are one or any two or three of flame-retardant acrylic staple fibers, modacrylic staple fibers or polytetrafluoroethylene staple fibers, and the core fibers are aramid filaments. The ultraviolet-resistant aramid yarn solves the problems that the existing aramid product is poor in ultraviolet resistance, the ultraviolet-resistant aramid product is not durable in effect, the aramid flame retardance is damaged, and the like. The invention also discloses a preparation method of the ultraviolet-resistant aramid yarn.
Description
Technical Field
The invention belongs to the technical field of yarn spinning preparation methods, relates to an ultraviolet-resistant aramid yarn, and further relates to a preparation method of the ultraviolet-resistant aramid yarn.
Background
After long-term sunlight irradiation outdoors, the mechanical property of the aramid fiber is reduced, and the aramid fiber product becomes brittle, cracks and yellows, and even is damaged to be incapable of being used. In order to improve the ultraviolet resistance of aramid fiber, two methods are generally adopted for improvement at present: firstly, by coating the surface of the fiber with a finishing agent or an anti-ultraviolet additive containing a nano anti-ultraviolet material, the method has the disadvantage that the protective layer can fall off during the use process, which causes the loss of the anti-ultraviolet performance of the fiber. The other method is to add an ultraviolet absorbent into the spinning solution to prepare the aramid fiber with ultraviolet resistance, so that the aramid fiber has ultraviolet resistance from inside to outside, and the method has the disadvantages that the compatibility between the ultraviolet absorbent and the aramid fiber needs to be considered, and the good compatibility is the premise that a two-phase system blending product has good performance (particularly mechanical performance); and secondly, the ultraviolet absorbent is not flame-retardant, and the excellent flame retardance of the aramid fiber can be damaged when the ultraviolet absorbent is added into the aramid fiber filament.
Disclosure of Invention
The invention aims to provide an ultraviolet-resistant aramid yarn, which solves the problems that the existing aramid product has poor ultraviolet resistance, the ultraviolet-resistant aramid product has a non-lasting effect, the aramid flame retardance is damaged, and the like.
The invention also aims to provide a preparation method of the ultraviolet-resistant aramid yarn.
The invention adopts the technical scheme that the ultraviolet-resistant aramid yarn is a core-spun yarn and comprises outer layer fibers and core fibers, wherein the outer layer fibers are one or any two or three of flame-retardant acrylic staple fibers, nitrile polyvinyl chloride staple fibers or polytetrafluoroethylene staple fibers, and the core fibers are aramid filaments.
The present invention is also characterized in that,
the average length of the flame-retardant acrylic staple fiber or modacrylic staple fiber or polytetrafluoroethylene staple fiber is 12-180 mm.
The fineness of the aramid filament is 5-150 tex.
The twist of the aramid filament yarn is 20-1500 twists/m.
The second technical scheme adopted by the invention is that the preparation method of the ultraviolet-resistant aramid yarn specifically comprises the following steps: one or any two or three of flame-retardant acrylic staple fiber, modacrylic staple fiber or polytetrafluoroethylene staple fiber is used as outer layer fiber, aramid filament is used as core fiber, and the ultraviolet-resistant aramid yarn is prepared by a core-spun process.
The second aspect of the present invention is also characterized in that,
the core-spun process comprises the following steps: the core fiber aramid filament is guided in through a yarn guide device, the core fiber is wrapped on the outer layer fiber core, the twisting degree is 20-1500 twists per meter, and the twisting direction is the S direction or the Z direction.
The average length of the flame-retardant acrylic staple fiber or modacrylic staple fiber or polytetrafluoroethylene staple fiber is 12-180 mm, the fineness of the aramid filament is 5-150 tex, and the twist of the aramid filament is 20-1500 twists/m.
The invention has the beneficial effects that: the processing process of the invention does not add any chemical reagent, thus being safe and environment-friendly; the outer fiber is ultraviolet resistant and flame retardant, and can not fall off in the using process; compatibility between the ultraviolet absorbent and the aramid fiber is not required to be considered, and the flame retardance and other properties of the aramid fiber are not influenced; the problems that the existing aramid fiber product is poor in ultraviolet resistance, the ultraviolet-resistant aramid fiber product is not durable in effect, the aramid fiber flame retardance is damaged and the like are solved.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention relates to an ultraviolet-resistant aramid yarn which is a core-spun yarn and comprises outer layer fibers and core fibers, wherein the outer layer fibers are one or any two or three of flame-retardant acrylic staple fibers, modacrylic staple fibers and polytetrafluoroethylene staple fibers, the core fibers are aramid filaments, the average length of the flame-retardant acrylic staple fibers, the modacrylic staple fibers and the polytetrafluoroethylene staple fibers is 12-180 mm, the fineness of the aramid filaments is 5-150 tex, and the twist of the aramid filaments is 20-1500 twists/m.
The invention discloses a preparation method of ultraviolet-resistant aramid yarn, which specifically comprises the following steps: the ultraviolet-resistant aramid yarn is prepared by adopting one or any two or three of flame-retardant acrylic short fibers, nitrile-vinyl chloride short fibers and polytetrafluoroethylene short fibers as outer-layer fibers and aramid filaments as core fibers, introducing the core fiber aramid filaments through a yarn guide device, wrapping the core fibers on the outer-layer fiber core, wherein the twisting degree is 20-1500 twists/m, and the twisting direction is S direction or Z direction, wherein the average length of the flame-retardant acrylic short fibers, the nitrile-vinyl chloride short fibers or the polytetrafluoroethylene short fibers is 12-180 mm, the fineness of the aramid filaments is 5-150 tex, and the twisting degree of the aramid filaments is 20-1500 twists/m.
Example 1
Flame-retardant acrylic/aramid 1313 core-spun yarn: 1.5D flame-retardant acrylic staple fibers (with the average length of 45mm) are subjected to blowing, carding, drawing, roving and spun yarn ring spinning to convert fibers into spun yarns, and in the process of spinning, 18tex aramid 1313 filaments are subjected to core-spun to form the flame-retardant acrylic/aramid 1313 core-spun yarn with the total count of 13 Ne.
Example 2
Modacrylic/aramid 1414 core spun yarn: converting 1.8D modacrylic short fiber (average length is 45mm) into spun yarn through blowing, carding, drawing, roving and spun yarn ring spinning, and in the process of spinning, covering 22tex aramid 1414 filament yarn into modacrylic/aramid 1414 covering yarn with the total number of 10 Ne.
Example 3
Teflon/aramid 1313 core spun yarn: 2.0D fluorine fiber short fiber (average length is 45mm) is converted into spun yarn by means of blowing, cotton carding, drawing, roving and spun yarn ring spinning, and 11tex aramid fiber 1313 filament is cored into a fluorine fiber/aramid fiber 1313 core-spun yarn with the total count of 15Ne in the process of spinning.
Example 4
Flame-retardant acrylic fiber/modacrylic fiber/aramid fiber 1414 core-spun yarn: the fiber obtained by mixing 2.0D flame-retardant acrylic staple fiber (average length is 45mm) and 1.5D vinyl chloride nitrile staple fiber (average length is 45mm) in a ratio of 50: 50 is converted into spun yarn from fiber by means of blowing, carding, drawing, roving and spun yarn ring spinning, and in the process of spinning, 11tex aramid 1414 filament is cored into flame-retardant acrylic/vinyl chloride nitrile/aramid core-spun 1414 yarn with the total count of 20 Ne.
Example 5
Flame-retardant acrylic fiber/fluorine fiber/aramid fiber 1313 core-spun yarn: a fiber obtained by mixing 2.0D flame-retardant acrylic staple fiber (average length is 45mm) and 2.0D fluorine staple fiber (average length is 45mm) in a ratio of 40: 60 is converted into spun yarn from the fiber through the modes of blowing, carding, drawing, roving and spun yarn ring spinning, and in the process of spinning, 22tex aramid fiber 1313 filament is cored into the flame-retardant acrylic/fluorine fiber/aramid fiber 1313 core-spun yarn with the total count of 14 Ne.
Example 6
Modacrylic/fiuoron/aramid 1414 core spun yarn: a fiber obtained by mixing 1.5D modacrylic short fiber (average length is 45mm) and 2.0D fluoran short fiber (average length is 45mm) in a ratio of 30: 70 is converted into spun yarn from the fiber through blowing, cotton carding, drawing, roving and spun yarn ring spinning, and in the process of spinning, aramid 1414 filaments of 16tex are cored into a modacrylic/fluoran/aramid core 1414 yarn with the total count of 10 Ne.
Example 7
Flame-retardant acrylic/modacrylic/fluorine/aramid 1313 core-spun yarn: a fiber obtained by mixing 2.0D flame-retardant acrylic staple fiber (average length is 45mm), 1.5D vinyl chloride nitrile staple fiber (average length is 45mm) and 2.0D fluorine staple fiber (average length is 45mm) in a ratio of 20: 30: 50 is converted into spun yarn from fiber through the modes of blowing, carding, drawing, roving and spun yarn ring spinning, and in the process of spinning, 20tex aramid fiber 1313 filament is cored into the flame-retardant acrylic/vinyl chloride nitrile/fluorine fiber/aramid fiber 1313 core-spun yarn with the total count of 10 Ne.
Claims (7)
1. The ultraviolet-resistant aramid yarn is characterized by being a core-spun yarn and comprising outer layer fibers and core fibers, wherein the outer layer fibers are one or any two or three of flame-retardant acrylic staple fibers, modacrylic staple fibers or polytetrafluoroethylene staple fibers, and the core fibers are aramid filaments.
2. The ultraviolet-resistant aramid yarn as claimed in claim 1, wherein the average length of the flame-retardant acrylic staple fiber, modacrylic staple fiber or polytetrafluoroethylene staple fiber is 12-180 mm.
3. The ultraviolet-resistant aramid yarn as claimed in claim 1, wherein the fineness of the aramid filament is 5 to 150 tex.
4. The ultraviolet-resistant aramid yarn as claimed in claim 3, wherein the twist of the aramid filament is 20-1500 twists/m.
5. A preparation method of ultraviolet-resistant aramid yarn is characterized by comprising the following steps: one or any two or three of flame-retardant acrylic staple fiber, modacrylic staple fiber or polytetrafluoroethylene staple fiber is used as outer layer fiber, aramid filament is used as core fiber, and the ultraviolet-resistant aramid yarn is prepared by a core-spun process.
6. The preparation method of the ultraviolet-resistant aramid yarn as claimed in claim 5, wherein the core-spun process comprises: the core fiber aramid filament is guided in through a yarn guide device, the core fiber is wrapped on the outer layer fiber core, the twisting degree is 20-1500 twists per meter, and the twisting direction is the S direction or the Z direction.
7. The preparation method of the ultraviolet-resistant aramid yarn as claimed in claim 6, wherein the average length of the flame-retardant acrylic staple fiber, nitrile-chlorine staple fiber or polytetrafluoroethylene staple fiber is 12-180 mm, the fineness of the aramid filament is 5-150 tex, and the twist of the aramid filament is 20-1500 twists/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010490304.6A CN111809285A (en) | 2020-06-02 | 2020-06-02 | Ultraviolet-resistant aramid yarn and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010490304.6A CN111809285A (en) | 2020-06-02 | 2020-06-02 | Ultraviolet-resistant aramid yarn and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111809285A true CN111809285A (en) | 2020-10-23 |
Family
ID=72847951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010490304.6A Pending CN111809285A (en) | 2020-06-02 | 2020-06-02 | Ultraviolet-resistant aramid yarn and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111809285A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112522829A (en) * | 2020-10-30 | 2021-03-19 | 南通新源特种纤维有限公司 | Polytetrafluoroethylene short fiber core-spun yarn and preparation method thereof |
| CN114753154A (en) * | 2022-05-10 | 2022-07-15 | 中化学科学技术研究有限公司 | Anti-ultraviolet para-aramid fiber, preparation method thereof and ultraviolet-resistant fabric |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4921756A (en) * | 1989-03-03 | 1990-05-01 | Springs Industries, Inc. | Fire resistant balanced fine corespun yarn and fabric formed thereof |
| CN201006920Y (en) * | 2007-02-09 | 2008-01-16 | 上海第十七棉纺织总厂 | Core-spun yarn |
| CN102154753A (en) * | 2011-03-29 | 2011-08-17 | 东华大学 | Basalt covering yarn |
| CN102358970A (en) * | 2011-08-23 | 2012-02-22 | 武汉纺织大学 | Three-axis compound spinning process for symmetrically protecting carbon fibers and application thereof |
| CN102864545A (en) * | 2012-09-26 | 2013-01-09 | 泰安市金飞虹织造有限公司 | Production method of inflaming retarding bast fiber fabric |
| CN103541085A (en) * | 2013-10-22 | 2014-01-29 | 山东岱银纺织集团股份有限公司 | Inorganic high-strength environment friendly flame-retardant yarn and production method thereof |
| CN203890580U (en) * | 2014-06-23 | 2014-10-22 | 江苏祥和纺织股份有限公司 | Thermoplastic composite yarn structure |
| CN205775078U (en) * | 2016-05-14 | 2016-12-07 | 绍兴柯桥奇诺家纺用品有限公司 | A kind of multifunctional cloth and use the casement that this cloth makes |
| CN206467387U (en) * | 2016-12-27 | 2017-09-05 | 上海正家牛奶丝科技有限公司 | A kind of feature covering yarn |
| CN110725036A (en) * | 2019-11-13 | 2020-01-24 | 武汉纺织大学 | Quick-drying flame-retardant anti-arc core-spun yarn |
-
2020
- 2020-06-02 CN CN202010490304.6A patent/CN111809285A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4921756A (en) * | 1989-03-03 | 1990-05-01 | Springs Industries, Inc. | Fire resistant balanced fine corespun yarn and fabric formed thereof |
| CN1045284A (en) * | 1989-03-03 | 1990-09-12 | 弹簧工业公司 | Fire-resistant unfold bag core spun yarn and fabric thereof |
| CN201006920Y (en) * | 2007-02-09 | 2008-01-16 | 上海第十七棉纺织总厂 | Core-spun yarn |
| CN102154753A (en) * | 2011-03-29 | 2011-08-17 | 东华大学 | Basalt covering yarn |
| CN102358970A (en) * | 2011-08-23 | 2012-02-22 | 武汉纺织大学 | Three-axis compound spinning process for symmetrically protecting carbon fibers and application thereof |
| CN102864545A (en) * | 2012-09-26 | 2013-01-09 | 泰安市金飞虹织造有限公司 | Production method of inflaming retarding bast fiber fabric |
| CN103541085A (en) * | 2013-10-22 | 2014-01-29 | 山东岱银纺织集团股份有限公司 | Inorganic high-strength environment friendly flame-retardant yarn and production method thereof |
| CN203890580U (en) * | 2014-06-23 | 2014-10-22 | 江苏祥和纺织股份有限公司 | Thermoplastic composite yarn structure |
| CN205775078U (en) * | 2016-05-14 | 2016-12-07 | 绍兴柯桥奇诺家纺用品有限公司 | A kind of multifunctional cloth and use the casement that this cloth makes |
| CN206467387U (en) * | 2016-12-27 | 2017-09-05 | 上海正家牛奶丝科技有限公司 | A kind of feature covering yarn |
| CN110725036A (en) * | 2019-11-13 | 2020-01-24 | 武汉纺织大学 | Quick-drying flame-retardant anti-arc core-spun yarn |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112522829A (en) * | 2020-10-30 | 2021-03-19 | 南通新源特种纤维有限公司 | Polytetrafluoroethylene short fiber core-spun yarn and preparation method thereof |
| CN114753154A (en) * | 2022-05-10 | 2022-07-15 | 中化学科学技术研究有限公司 | Anti-ultraviolet para-aramid fiber, preparation method thereof and ultraviolet-resistant fabric |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111809285A (en) | Ultraviolet-resistant aramid yarn and preparation method thereof | |
| WO2019210543A1 (en) | Preparation method for environment-friendly vehicle clutch friction plate solvent-free composite wire | |
| CN110273209B (en) | High-strength flame-retardant high-temperature-resistant polyimide yarn and preparation method thereof | |
| CN105133115A (en) | High-extensibility anti-pilling fiber blended wrap yarn and preparation method thereof | |
| CN113005574A (en) | Covered yarn spinning device and preparation method of flame-retardant antistatic covered yarn | |
| WO2018164312A1 (en) | Method for manufacturing wool-like synthetic fiber/cellulose fiber air-jet blended spun yarn having excellent friction resistance | |
| CN207047454U (en) | A kind of glass fiber flame retardant wrap yarn | |
| CN107299439B (en) | A kind of functionality colorful color-changeable color spot silk and its production technology | |
| CN113957643B (en) | Flame-retardant and cutting-resistant composite monofilament, coated wire, and preparation method and application thereof | |
| CN109234879B (en) | Core-spun yarn applied to sealing material woven packing | |
| CN211394775U (en) | Bamboo joint yarn with length and reducing structure | |
| CN206244970U (en) | A kind of antibacterial flame-retardant yarn | |
| CN102121146B (en) | Polyester staple fiber for Murata vortex spinning process | |
| CN103362007A (en) | PBI fiber compound rope and preparation method thereof | |
| CN108048944B (en) | Nano heat-insulating flame-retardant formaldehyde-removing disinfection fiber yarn | |
| CN112458590B (en) | High-elasticity wear-resistant antibacterial regenerated polyester core-spun yarn and production process thereof | |
| CN112030295A (en) | Shape-retaining knitting yarn, and method and device for producing same | |
| CN218175250U (en) | Compact sirospun viscose yarn with heat resistance and strong tensile property | |
| CN102031594B (en) | Production method of polyester staple fiber for jet vortex spinning process | |
| CN111424353A (en) | Flame-retardant sewing thread and production process thereof | |
| CN109385716A (en) | A kind of stabs cuts yarn | |
| CN212357507U (en) | High-toughness vortex spun yarn | |
| CN211848278U (en) | High-elasticity blended yarn | |
| CN114855333B (en) | High Jiang Chaobao polyimide fabric and preparation method thereof | |
| CN212375455U (en) | Vortex spun-bonded adhesive 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |