CN111501154A - Double-layer coated sisal yarn and spinning method thereof - Google Patents
Double-layer coated sisal yarn and spinning method thereof Download PDFInfo
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- CN111501154A CN111501154A CN202010241155.XA CN202010241155A CN111501154A CN 111501154 A CN111501154 A CN 111501154A CN 202010241155 A CN202010241155 A CN 202010241155A CN 111501154 A CN111501154 A CN 111501154A
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- 244000198134 Agave sisalana Species 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000009987 spinning Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 235000011624 Agave sisalana Nutrition 0.000 claims abstract description 26
- 229920000728 polyester Polymers 0.000 claims abstract description 19
- 239000004760 aramid Substances 0.000 claims abstract description 8
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 61
- 238000009960 carding Methods 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 18
- 239000010959 steel Substances 0.000 abstract description 18
- 238000000576 coating method Methods 0.000 abstract description 12
- 239000011248 coating agent Substances 0.000 abstract description 11
- 206010020112 Hirsutism Diseases 0.000 abstract 1
- 238000005253 cladding Methods 0.000 description 9
- 239000002131 composite material Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
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- 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
- D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
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- 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
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
-
- 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
-
- 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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Abstract
The invention discloses a double-layer coating sisal yarn and a spinning method thereof, wherein the double-layer coating sisal yarn consists of a core yarn C and a coating yarn, wherein the core yarn C consists of a core filament and sisal fibers, the core filament consists of an aramid 1414 filament and a hollow polyester sirofil yarn, and the coating yarn consists of a coating yarn A and a coating yarn B to form two layers of coatings, wherein: wrap yarn a forms the inner layer of the wrap, wrap yarn B forms the outer layer of the wrap, wrap yarn a: the mass ratio of the covering yarn B is 20-45: 80-55, wherein the wrapping yarns A, B are all high-shrinkage high-strength polyester filaments; in the covering process, the covering yarn A at the upper position is firstly wound on the surface of the core yarn C to form an inner layer, and the covering yarn B at the lower position is then wound on the surface of the core yarn C to form an outer layer, so that the double-layer covering sisal yarn is formed. The invention can effectively reduce the hairiness of the sisal hemp yarn and effectively improve the strength of the sisal hemp yarn, and is mainly used for the rope core of the steel wire rope.
Description
Technical Field
The invention belongs to the field of sisal spinning, and particularly relates to a double-layer coated sisal yarn and a spinning method thereof.
Background
At present, the steel wire rope core of the elevator mainly comprises a steel core and a fiber core, which are respectively characterized by being selected according to requirements, wherein the steel core is suitable for a high-speed elevator, and the fiber core is suitable for a low-speed elevator. The fiber core has the characteristics of softness and good bending property of the fiber core steel wire rope, and can play a role in buffering when the steel wire rope is subjected to collision and impact load in work. Wherein: the natural fiber core stores more oil, and the steel wire rope has enough lubrication inside and can slow down the corrosion of the steel wire when in work; the synthetic fiber core has the characteristics of good obdurability, no water absorption, acid resistance, alkali resistance, corrosion resistance, extrusion resistance and the like, and the steel wire rope is not easy to deform in the use of dynamic load and has uniform and stable diameter.
Aiming at the characteristics of the two fiber rope cores, the sisal fibers are hard fibers, have good corrosion resistance, extrusion resistance and toughness, and store more oil, and become the preferred material of the steel wire rope core. In order to further improve the process performance of sisal fiber rope cores, document 1: (zl201910088680.x) a steel wire rope composite sisal rope core for an elevator and a preparation method thereof, and discloses a steel wire rope composite sisal rope core for an elevator and a preparation method thereof; document 2: (zl201910088684.8) a high-strength and light-weight steel wire composite rope core for an elevator and a preparation method thereof, and discloses a high-strength and light-weight steel wire composite rope core for an elevator and a preparation method thereof; document 3: a novel steel wire rope core and a production method (201910401818.7) thereof, and discloses a novel steel wire rope core and a production method thereof; document 4: (zl201910401819.1) a novel oil-containing steel wire rope core with a sisal/synthetic fiber composite structure and a preparation method thereof, and discloses the novel oil-containing steel wire rope core with the sisal/synthetic fiber composite structure and the preparation method thereof.
The above references describe four sisal hemp blended yarn rope cores, which are produced by performing core-spun yarns, sirofil spinning, doubling and other methods on chemical fiber filaments and sisal hemp fibers, and then further manufacturing the rope cores.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides a double-layer coated sisal yarn and a spinning method thereof.
The technical scheme is as follows: a double-layer cladding sisal yarn comprises a core yarn C and a cladding yarn, wherein the core yarn C comprises core silk and sisal fibers, the cladding yarn comprises a cladding yarn A and a cladding yarn B, and an inner layer cladding yarn A and an outer layer cladding yarn B form double-layer cladding;
the yarn A and the yarn B are divided into an upper layer and a lower layer to be coated on the surface layer of the core yarn C in the twisting process: winding the yarn A on the surface of the core yarn C to form an inner layer of the coating layer; the yarn B is arranged below and then wound on the surface of the core yarn C to form an outer layer of the coating layer; the core yarn C was covered with A, B yarns in two layers to form a double covered sisal yarn.
As an optimization: the yarn A and the yarn B are high-strength high-shrinkage polyester filament yarns, and the shrinkage rate is more than 6%.
As an optimization: the core yarn is aramid 1414 filament and hollow polyester Sirofil yarn.
As an optimization: the mass ratio of the core yarn to the core yarn C is as follows: 5 to 20 percent; core yarn C: the mass ratio of the covering yarn is as follows: 60-90: 40-10 parts of; and (3) covering yarn A: the mass ratio of the covering yarn B is 20-45: 80-55.
A spinning method of the double-layer covering sisal yarn comprises the following steps:
the method comprises the following steps that firstly, sisal hemp strips are led out from a barrel and fed into a rear roller through a guide strip bell mouth, the sisal hemp strips are conveyed to a front roller through the rear roller, two guide strip rollers are arranged below the sisal hemp strips between the front roller and the rear roller, two yarn guide rods are arranged above the sisal hemp strips, a carding roller is arranged in the middle of the sisal hemp strips, carding needles are arranged on the surface of the carding roller and incline towards the rear of the rotation direction of the carding roller, and fibers are prevented from being grabbed when the carding needles are used for carding fibers; the carded sisal hemp strips enter a front roller through a buncher, core yarns are led out from the buncher and merged into the sisal hemp fiber strips, the core yarns and the sisal hemp fiber strips are output from the front roller together to form core yarns C, and the core yarns C are output from the front roller, pass through a yarn guide tube and then are vertically sent into a spindle;
secondly, the spindle rotates to complete the twisting of the yarn, and the spindle and the bobbin are in motion fit to complete the winding; the bobbin creel is provided with two wrapping yarns A, B, the two wrapping yarns A, B are respectively divided into an upper layer and a lower layer through the yarn guide tube and are combined with the core yarn between the top of the spindle and the yarn guide tube, and the wrapping yarns A, B are sequentially wrapped on the surface of the core yarn C in the twisting process along with the rotation of the spindle; the yarn A is arranged on the upper portion and firstly coated on the surface of the core yarn C to form an inner layer, the yarn B is arranged on the lower portion and then coated on the surface of the core yarn C to form an outer layer, and therefore the double-layer coated sisal yarn is formed.
As an optimization: the back roller is divided into an upper roller and a lower roller, the upper roller is a convex roller, and the lower roller is a concave roller.
As an optimization: the front roller is divided into an upper roller and a lower roller, the upper roller is a front convex roller, and the lower roller is a front concave roller.
Has the advantages that: the double-layer coated sisal yarn consists of core yarn and coating yarn, the core yarn consists of sisal fiber and core yarn, the core yarn adopts aramid 1414 filament and hollow polyester sirofil yarn, and because the polyester staple fiber is of a hollow structure, grease can be effectively stored in the oiling process, and the oil storage capacity of the rope core is increased; the covering yarn adopts double-layer covering, the inner layer covering yarn is thin, the outer layer covering yarn is thick, the covering yarn adopts high-contractibility high-strength polyester filament, after heating and oiling treatment, the tightness of covering the sisal yarn can be effectively improved after the high-contractibility high-strength polyester filament is shrunk by heat, and the tightness of covering realizes gradient tightness effect due to the thin inner layer fiber and the thick outer layer fiber, so that the covering effect is better, and the strength of the sisal yarn can be effectively improved; meanwhile, the double-layer coating can effectively reduce the sisal yarn burrs, reduce the burden of the subsequent shearing process and even omit the process. Therefore, the double-layer coated sisal yarn produced by the method is smooth, mellow, compact, stiff, high in strength, high in oil storage capacity, corrosion-resistant and extrusion-resistant, and the manufactured rope core is not easy to deform in the use of dynamic load, uniform and stable in diameter and excellent in quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the front and back roller structures of the present invention;
FIG. 3 is a schematic view of the structure of the buncher of the present invention;
fig. 4 is a schematic view of a covering yarn feeding device of the present invention;
FIG. 5 is a schematic view of a double-covered sisal yarn structure of the present invention.
Wherein, 1, sisal hemp barrel; 2. a horn mouth of the conducting bar; 3. a back roller; 4. a yarn guide bar; 5. a bar guiding roller; 6. carding rollers; 7. a buncher; 8. a front roller; 9. a creel; 10. a yarn guide tube; 11. a spindle; 12. a bobbin; 13. a core wire barrel; 14. a core yarn; A. covering yarn A yarn; B. covering yarn B; C. core yarn C yarn.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Examples
As shown in figures 1-5, sisal hemp strips are drawn out from a barrel 1, fed into a rear roller 3 through a guide strip bell mouth 2, and conveyed to a front roller 8 by the rear roller 3, wherein the front roller 8 and the rear roller 3 are divided into an upper roller and a lower roller, the upper roller is a convex roller, the lower roller is a concave roller, and the specific structure is shown in figure 2. Between the front roller 8 and the rear roller 3, two yarn guide rods 4 are arranged above the sisal strips, two yarn guide rollers 5 are arranged below the sisal strips, the carding roller 6 is arranged in the middle of the sisal strips, carding needles are arranged on the surface of the carding roller 6 and incline towards the rear of the rotation direction of the carding roller, and the fibers are prevented from being grabbed when the carding needles comb the fibers. The carded sisal hemp strips pass through a buncher 7 and enter a front roller 8, the structure is shown in figure 3, the sisal hemp strips are output from the front roller 8 and pass through a yarn guide tube 10, and then the sisal hemp strips are vertically fed into a spindle 11. The core yarn 14 is led out from the core yarn barrel 13, fed into the sisal yarn from the buncher 7 to form the core yarn, and is output from a front roller together with the sisal yarn to form the core yarn C yarn, the spindle rotates to complete the twisting of the yarn, and the spindle 11 and the bobbin 12 are in motion fit to complete the winding. The creel 9 is provided with two wrapping yarns A, B, the specific structure is shown in fig. 4, the two wrapping yarns A, B pass through a yarn guide tube respectively between the top of a spindle and the yarn guide tube, and are divided into an upper layer and a lower layer which are sequentially wrapped on the surface layer of the core yarn C in the twisting process. Two layers of cladding are carried out, after one yarn A is cladded, the other yarn B is cladded again, and the yarn A is firstly coiled and cladded on the surface of the yarn C of the core yarn to form an inner layer; the yarn B is wound and coated on the surface of the yarn C to form an outer layer after being wound, so that the yarn C is respectively coated by A, B yarns in two layers to form the double-layer coated sisal yarn, and the specific structure is shown in figure 5.
The draft section of the present invention is as follows: the linear velocity of the surface of the carding roller 6 is slower than that of the front roller, the surface of the carding roller 6 adopts a card wire design, the card wire inclination direction is backward (namely backward inclination towards the rotation direction), when the rapidly moving sisal fiber passes through the slow card wire surface, the sisal fiber can be properly combed, and the card wire can be prevented from grabbing the fiber due to backward inclination of the card wire, so that the surface of the card wire is kept clean.
The covering yarn adopts high-strength high-shrinkage polyester filament yarns, the shrinkage rate is more than 6%, and the core yarn adopts aramid 1414 filament yarns and hollow polyester sirofil yarns.
The coated fiber of the present invention: and (3) covering yarn A: the mass ratio of the covering yarn B is 20-45: 80-55, the fineness of the yarn A on the inner layer is thinner than that of the yarn B on the outer layer, and the coating effect can be effectively improved.
Core filament fiber of the invention: the mass ratio of the core filament aramid 1414 filaments to the core yarn C is as follows: 5 to 20 percent; core yarn C: the mass ratio of the covering yarn is as follows: 60-90: 40-10.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Raw materials: the sisal strips, the upper wrapping fiber A and the lower wrapping fiber B are 400D high-strength high-shrinkage polyester yarns, the heat shrinkage rate of the high-strength high-shrinkage polyester yarns is more than or equal to 10%, and the core yarn is 400D aramid 1414 filament and hollow polyester Sirofil spun yarn 110 tex.
Yarn specification: the double-layer wrapping sisal yarn is 1.6g/m,
the spinning process comprises the following steps: the quantitative ratio of sisal hemp strips is 16g/m, the drafting multiple of a spinning machine is 12.3 times, and the ratio of a front roller: carding rollers: the rear roller speed ratio is: 11.5: 5: 1, the spindle speed of the spinning machine is 1000 r/min.
The double-layer coated sisal yarn consists of core yarn and coating yarn, the core yarn consists of sisal fiber and core yarn, the core yarn adopts aramid 1414 filament and hollow polyester sirofil yarn, and because the polyester staple fiber is of a hollow structure, grease can be effectively stored in the oiling process, and the oil storage capacity of the rope core is increased; the covering yarn adopts double-layer covering, the inner layer covering yarn is thin, the outer layer covering yarn is thick, the covering yarn adopts high-contractibility high-strength polyester filament, after heating and oiling treatment, the tightness of covering the sisal yarn can be effectively improved after the high-contractibility high-strength polyester filament is shrunk by heat, and the tightness of covering realizes gradient tightness effect due to the thin inner layer fiber and the thick outer layer fiber, so that the covering effect is better, and the strength of the sisal yarn can be effectively improved; meanwhile, the double-layer coating can effectively reduce the sisal yarn burrs, reduce the burden of the subsequent shearing process and even omit the process. Therefore, the double-layer coated sisal yarn produced by the method is smooth, mellow, compact, stiff, high in strength, high in oil storage capacity, corrosion-resistant and extrusion-resistant, and the manufactured rope core is not easy to deform in the use of dynamic load, uniform and stable in diameter and excellent in quality.
Claims (7)
1. The double-layer covering sisal yarn is characterized in that: the double-layer wrapping sisal yarn consists of a core yarn C and a wrapping yarn, wherein the core yarn C consists of core silk and sisal fibers, the wrapping yarn consists of a wrapping yarn A and a wrapping yarn B, and the inner layer wrapping yarn A and the outer layer wrapping yarn B form double-layer wrapping;
the yarn A and the yarn B are divided into an upper layer and a lower layer to be coated on the surface layer of the core yarn C in the twisting process: winding the yarn A on the surface of the core yarn C to form an inner layer of the coating layer; the yarn B is arranged below and then wound on the surface of the core yarn C to form an outer layer of the coating layer; the core yarn C was covered with A, B yarns in two layers to form a double covered sisal yarn.
2. The double-covered sisal yarn of claim 1, wherein: the yarn A and the yarn B are high-strength high-shrinkage polyester filament yarns, and the shrinkage rate is more than 6%.
3. The double-covered sisal yarn of claim 1, wherein: the core yarn is aramid 1414 filament and hollow polyester Sirofil yarn.
4. The double-covered sisal yarn of claim 1, wherein: the mass ratio of the core yarn to the core yarn C is as follows: 5 to 20 percent; core yarn C: the mass ratio of the covering yarn is as follows: 60-90: 40-10 parts of; and (3) covering yarn A: the mass ratio of the covering yarn B is 20-45: 80-55.
5. A spinning method of a double-covered sisal yarn according to claim 1, characterized in that: the method comprises the following steps:
the method comprises the following steps that firstly, sisal hemp strips are led out from a barrel and fed into a rear roller through a guide strip bell mouth, the sisal hemp strips are conveyed to a front roller through the rear roller, two guide strip rollers are arranged below the sisal hemp strips between the front roller and the rear roller, two yarn guide rods are arranged above the sisal hemp strips, a carding roller is arranged in the middle of the sisal hemp strips, carding needles are arranged on the surface of the carding roller and incline towards the rear of the rotation direction of the carding roller, and fibers are prevented from being grabbed when the carding needles are used for carding fibers; the carded sisal hemp strips enter a front roller through a buncher, core yarns are led out from the buncher and merged into the sisal hemp fiber strips, the core yarns and the sisal hemp fiber strips are output from the front roller together to form core yarns C, and the core yarns C are output from the front roller, pass through a yarn guide tube and then are vertically sent into a spindle;
secondly, the spindle rotates to complete the twisting of the yarn, and the spindle and the bobbin are in motion fit to complete the winding; the bobbin creel is provided with two wrapping yarns A, B, the two wrapping yarns A, B are respectively divided into an upper layer and a lower layer through the yarn guide tube and are combined with the core yarn between the top of the spindle and the yarn guide tube, and the wrapping yarns A, B are sequentially wrapped on the surface of the core yarn C in the twisting process along with the rotation of the spindle; the yarn A is arranged on the upper portion and firstly coated on the surface of the core yarn C to form an inner layer, the yarn B is arranged on the lower portion and then coated on the surface of the core yarn C to form an outer layer, and therefore the double-layer coated sisal yarn is formed.
6. A spinning method of double-layer covered sisal yarn according to claim 5, characterized in that: the back roller is divided into an upper roller and a lower roller, the upper roller is a convex roller, and the lower roller is a concave roller.
7. A spinning method of double-layer covered sisal yarn according to claim 5, characterized in that: the front roller is divided into an upper roller and a lower roller, the upper roller is a front convex roller, and the lower roller is a front concave roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010241155.XA CN111501154A (en) | 2020-03-31 | 2020-03-31 | Double-layer coated sisal yarn and spinning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010241155.XA CN111501154A (en) | 2020-03-31 | 2020-03-31 | Double-layer coated sisal yarn and spinning method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382603A (en) * | 2013-08-05 | 2013-11-06 | 浙江凯发新材料有限公司 | Itch-preventing hemp core wrap yarn and processing method thereof |
| CN104499141A (en) * | 2014-12-09 | 2015-04-08 | 四川中升博能生物科技股份有限公司 | Wrapped wire for electric heating network and net structure braided with wrapped wire |
| CN104746200A (en) * | 2015-04-22 | 2015-07-01 | 江南大学 | Ultra-high molecular weight polyethylene pure-spinning covering yarn and production method thereof |
| CN107254724A (en) * | 2017-07-04 | 2017-10-17 | 东华大学 | The three shafting cone cylinder formula composite spinning devices and method of a kind of negative poisson's ratio yarn |
| CN108754734A (en) * | 2018-06-12 | 2018-11-06 | 徐州天虹时代纺织有限公司 | A kind of elastomeric yarn, production technology and its fabric |
| CN110042683A (en) * | 2019-05-15 | 2019-07-23 | 南通市通州区大达麻纺织有限公司 | A kind of novel sisal hemp/conjunction fiber composite structure oil-containing wire rope core and preparation method thereof |
-
2020
- 2020-03-31 CN CN202010241155.XA patent/CN111501154A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382603A (en) * | 2013-08-05 | 2013-11-06 | 浙江凯发新材料有限公司 | Itch-preventing hemp core wrap yarn and processing method thereof |
| CN104499141A (en) * | 2014-12-09 | 2015-04-08 | 四川中升博能生物科技股份有限公司 | Wrapped wire for electric heating network and net structure braided with wrapped wire |
| CN104746200A (en) * | 2015-04-22 | 2015-07-01 | 江南大学 | Ultra-high molecular weight polyethylene pure-spinning covering yarn and production method thereof |
| CN107254724A (en) * | 2017-07-04 | 2017-10-17 | 东华大学 | The three shafting cone cylinder formula composite spinning devices and method of a kind of negative poisson's ratio yarn |
| CN108754734A (en) * | 2018-06-12 | 2018-11-06 | 徐州天虹时代纺织有限公司 | A kind of elastomeric yarn, production technology and its fabric |
| CN110042683A (en) * | 2019-05-15 | 2019-07-23 | 南通市通州区大达麻纺织有限公司 | A kind of novel sisal hemp/conjunction fiber composite structure oil-containing wire rope core and preparation method thereof |
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Application publication date: 20200807 |