CN105239230B - A kind of preparation method of PTFE long filaments - Google Patents
A kind of preparation method of PTFE long filaments Download PDFInfo
- Publication number
- CN105239230B CN105239230B CN201510541650.1A CN201510541650A CN105239230B CN 105239230 B CN105239230 B CN 105239230B CN 201510541650 A CN201510541650 A CN 201510541650A CN 105239230 B CN105239230 B CN 105239230B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- long filaments
- connector
- screw
- ptfe
- 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.)
- Active
Links
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Ropes Or Cables (AREA)
Abstract
The present invention relates to a kind of preparation method of PTFE long filaments（1）Count 50 70 parts of polytetrafluoroethylene (PTFE), 5 15 parts of succinic acid, 06 parts of salicylic acid, 38 parts of p-dichlorobenzene that the 2h of stirring at normal temperature 1 obtains primary compound in mixer by weight；（2）Primary compound is put into baking oven and dries 4 6h；（3）Will be through step（2）Primary compound after drying, is added in press mould and blank is made；（4）Blank is added in extruder and is squeezed into primary filament；（5）Primary filament is put into drafting machine and carries out heating two grades of silks of stretching；（6）Two grades of silks are put into twisting machine PTFE long filaments of twisting thread to obtain；（7）PTFE long filaments are shaped on forming machine, it is qualified after testing after PTFE long filaments be wound packaging, manufacturing cost is low, and the tensile strength of silk can meet the high strength polytetrafluoroethylfiber fiber processing method of following process requirement.
Description
Technical field
The present invention relates to a kind of preparation method, and in particular to a kind of preparation method of PTFE long filaments.
Technical background
At present, the line being made of PTFE (polytetrafluoroethylene (PTFE)), due to adding auxiliary agent, after auxiliary agent is removed, is contained on line
There is substantial amounts of micropore, line has reached flexibility, but without rigidity, polytetrafluoroethylene (PTFE) is the particle of fibrosis, is extruded by auxiliary agent
Longitudinal fiber is formed, the tensile strength with longitudinal direction, laterally easily cracking, fluffing, loses polytetrafluoroethylmaterial material non-stick
And the characteristic of low-friction coefficient, manufacturing cost high yield is low, and can also cause during auxiliary agent is removed environmental pollution, easily
Combustion, causes potential safety hazard, in addition, the silk made can not meet the tensile strength requirement of loom following process.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of preparation method of PTFE long filaments, and manufacturing cost is low, silk
Tensile strength can meet the high strength polytetrafluoroethylfiber fiber processing method of following process requirement.
In order to solve the above technical problems, the technical scheme is that：
A kind of preparation method of PTFE long filaments, its preparation method is as follows：
(1) count 50-70 parts of polytetrafluoroethylene (PTFE), 5-15 parts of succinic acid, 0-6 parts of salicylic acid, p-dichlorobenzene by weight
3-8 parts in mixer stirring at normal temperature 1-2h obtain primary compound；
(2) primary compound is put into baking oven and dries 4-6h, drying temperature is 45-55 DEG C；
(3) the primary compound after being dried through step (2), is added to mono- with 150-220Kg/cm2 in press mould
The pressure of position is suppressed 30-50 minutes, and blank is made；
(4) by blank add extruder in 50-100Mpa pressure extrusion into a diameter of 0.8mm primary filament；
(5) primary filament is put into drafting machine and carries out heating two grades of silks of stretching, stretching is divided into oil removing, three steps of sintering and stretching
Suddenly, except oil temperature be 280-320 DEG C, sintering temperature be 250-300 DEG C, draft temperature be 350-450 DEG C；
(6) two grades of silks are put into twisting machine PTFE long filaments of twisting thread to obtain, first twist twisting count is twisted with the fingers for 480-520, and retwist twisting count is
380-420 is twisted with the fingers；
(7) PTFE long filaments are shaped on forming machine, it is qualified after testing after PTFE long filaments be wound packaging.
A kind of preparation method of above-mentioned PTFE long filaments, wherein, the twisting machine includes conducting mechanism, the conducting mechanism bag
Include fix bar, connecting rod and conductor loop, the fix bar is set in the fixing end in cylinder, including fixing end and connection end
Have the first screw, first screw along fix bar be in it is cylindrical axially arranged, the connection end provided with connector and
Pin clamp, the connector is in cylinder, and its cylindrical radius for being in is R1, and the inwall of connector is provided with conversion tooth,
The conversion tooth is elongated, and is in the axis parallel of cylinder with connector, and the thickness of conversion tooth is D1, the latch
Mouth is " J " shaped, and quantity is 2, is symmetricly set in connection end, pin clamp runs through connection end, and connects connector；
The connecting rod is in cylinder, and its radius is R2, and the outer wall of connecting rod is provided with conversion groove, the conversion groove size
Agree with quantity with conversion tooth, the lower end of connecting rod is provided with hook ring, and upper end is provided with the second screw, the second screw edge connection
It is cylindrical axially arranged that bar is in, and the hook ring is in annular；The conductor loop is provided with 2 wires being disposed opposite to each other
Fixing port bicyclic and positioned at conductor loop center, the wire is bicyclic in " 3 " shape, including 2 guidewire ports, and the guidewire port is in 3/
4 circular arc, its correspondence central angle is α, α=270 °；
The conductor loop is fixed in connecting rod, the fix bar and connection by fixing port with screw and the second screw
Hook spring is provided between bar, there is hook at the two ends of the hook spring, and end hook is hung on the hook ring of connecting rod thereon, lower end hook
Hang on a latch, the latch inserts pin clamp, and is connected in the lower end of " J " shape that pin clamp is in, connecting rod and wire
Ring is connected, the fix bar is fixed on twisting machine by screw and the first screw under the elastic force effect of hook spring with fix bar
On；
The cylindrical axis that the connector is in and the cylindrical axis that fix bar is in are straight for same
Line；
The conversion tooth quantity is identical with the guidewire port quantity on conductor loop, and the upper end of conversion tooth is apart from the upper end of connector
Distance be D2, the D2>0.5mm；
Cylindrical half that cylindrical radius R1, the thickness D1 of conversion tooth and the connecting rod that the connector is in are in
There is following relation, the R1 in footpath R2>R2>(R1-D1).
Beneficial effects of the present invention are：
PTFE long filaments produced by the present invention can be used for the base fabric of manufacture filtrate, can be processed into sewing thread sewing filtering bag, with
And toothpick line is twisted, its another important application is that the ion exchange film base material of chlor-alkali project, PTFE long filaments are made by establishment
Oxygen limit index up to 0.98, intensity is high, and when line density is 200,400,450 and 500den, corresponding strength is respectively
8.5th, 16,18,20N, tensile strength is up to 4gf/den, and Applicable temperature is -210-265 DEG C, and PH tolerance value is 0-14PH, resistance to
Soda acid, corrosion-resistant, chemical stability are extremely strong, non-aging pollution-free.
The PTFE long filament production twisting machines of the present invention, its is simple in construction, reasonable in design, and conducting mechanism instead of original
Steel ring, enters row conductor, can simultaneously to it is multidirectional enter row conductor, also can unidirectional conductor, wire excellent uses as single-wire line
When, multiple guidewire ports thereon can be changed arbitrarily, such as some guidewire port serious wear, longitudinally can be pulled out conductor loop, after rotation,
Put down again, realize the switching of guidewire port, it is convenient and swift, without being changed immediately as existing steel ring, without shutting down, improve sth. made by twisting
The efficiency of line machine.Meanwhile, twisting machine of the invention, with wire excellent, can multidirectional wire the characteristics of, guidewire port can be any
Switching, such as some guidewire port weares and teares, without with changing, switching guidewire port immediately.
Brief description of the drawings
Fig. 1 conducting mechanism structural representations of the present invention.
Fig. 2 fix bar sectional views of the present invention.
Fig. 3 pin clamp schematic diagrames of the present invention.
Fig. 4 connecting rod schematic diagrames of the present invention.
Fig. 5 conductor loop schematic diagrames of the present invention.
Embodiment
The embodiment of the present invention is described in further detail below by way of specific embodiment.
Embodiment one
A kind of preparation method of PTFE long filaments, its preparation method is as follows：
(1) count 60 parts of polytetrafluoroethylene (PTFE), 8 parts of succinic acid, 4 parts of salicylic acid, 5 parts of p-dichlorobenzene by weight in stirring
Stirring at normal temperature 2h obtains primary compound in machine；
(2) primary compound is put into baking oven and dries 5h, drying temperature is 50 DEG C；
(3) the primary compound after being dried through step (2), is added in press mould with 1590Kg/cm2 units
Pressure is suppressed 40 minutes, and blank is made；
(4) by blank add extruder in 80Mpa pressure extrusion into a diameter of 0.8mm primary filament；
(5) primary filament is put into drafting machine and carries out heating two grades of silks of stretching, stretching is divided into oil removing, three steps of sintering and stretching
Suddenly, except oil temperature be 300 DEG C, sintering temperature be 280 DEG C, draft temperature be 400 DEG C；
(6) two grades of silks are put into twisting machine PTFE long filaments of twisting thread to obtain, first twist twisting count is 500 sth. made by twisting, and retwist twisting count is 400
Twist with the fingers；
(7) PTFE long filaments are shaped on forming machine, it is qualified after testing after PTFE long filaments be wound packaging.
Embodiment two
A kind of preparation method of PTFE long filaments, its preparation method is as follows：
(1) count by weight and stir 50 parts of polytetrafluoroethylene (PTFE), 5 parts of succinic acid, 3 parts of p-dichlorobenzene normal temperature in mixer
Mix 1.5h and obtain primary compound；
(2) primary compound is put into baking oven and dries 6h, drying temperature is 45 DEG C；
(3) the primary compound after being dried through step (2), is added in press mould with 150Kg/cm2 units
Pressure is suppressed 50 minutes, and blank is made；
(4) by blank add extruder in 100Mpa pressure extrusion into a diameter of 0.8mm primary filament；
(5) primary filament is put into drafting machine and carries out heating two grades of silks of stretching, stretching is divided into oil removing, three steps of sintering and stretching
Suddenly, except oil temperature be 280 DEG C, sintering temperature be 250 DEG C, draft temperature be 350 DEG C；
(6) two grades of silks are put into twisting machine PTFE long filaments of twisting thread to obtain, first twist twisting count is 480 sth. made by twisting, and retwist twisting count is 380
Twist with the fingers；
(7) PTFE long filaments are shaped on forming machine, it is qualified after testing after PTFE long filaments be wound packaging.
Embodiment three
A kind of preparation method of PTFE long filaments, its preparation method is as follows：
(1) count by weight and stirring 70 parts of polytetrafluoroethylene (PTFE), 15 parts of succinic acid, 6 parts of salicylic acid, 8 parts of p-dichlorobenzene
Mix stirring at normal temperature 2h in machine and obtain primary compound；
(2) primary compound is put into baking oven and dries 6h, drying temperature is 45 DEG C；
(3) the primary compound after being dried through step (2), is added in press mould with 200Kg/cm2 units
Pressure is suppressed 30-50 minutes, and blank is made；
(4) by blank add extruder in 80Mpa pressure extrusion into a diameter of 0.8mm primary filament；
(5) primary filament is put into drafting machine and carries out heating two grades of silks of stretching, stretching is divided into oil removing, three steps of sintering and stretching
Suddenly, except oil temperature be 320 DEG C, sintering temperature be 300 DEG C, draft temperature be 450 DEG C；
(6) two grades of silks are put into twisting machine PTFE long filaments of twisting thread to obtain, first twist twisting count is 520 sth. made by twisting, and retwist twisting count is 420
Twist with the fingers；
(7) PTFE long filaments are shaped on forming machine, it is qualified after testing after PTFE long filaments be wound packaging.
Use twisting machine described in above three embodiment, including conducting mechanism 1, the conducting mechanism 1 include fix bar
2nd, connecting rod 3 and conductor loop 4, the fix bar 2 are provided with cylinder, including fixing end 5 and connection end 6, the fixing end 5
First screw 7, first screw 7 along fix bar 2 be in it is cylindrical axially arranged, the connection end 6 is provided with connector 8
With pin clamp 9, the connector 8 is in cylinder, and its cylindrical radius for being in is R1, and the inwall of connector 8, which is provided with, to be turned
Tooth 10 is changed, the conversion tooth 10 is elongated, and be in the axis parallel of cylinder, the thickness of conversion tooth 10 with connector 8
For D1, the pin clamp 9 is " J " shaped, and quantity is 2, is symmetricly set in connection end 6, pin clamp 9 runs through connection end 6, and connects
Connector 8；
The connecting rod 3 is in cylinder, and its radius is R2, and the outer wall of connecting rod 3 is provided with conversion groove 11, the conversion groove
11 size and number are agreed with conversion tooth 10, and the lower end of connecting rod 3 is provided with hook ring 12, and upper end is provided with the second screw 13, described
Second screw 13 along connecting rod 3 be in it is cylindrical axially arranged, the hook ring 12 is in annular；
The conductor loop 4 is provided with 2 wires being disposed opposite to each other bicyclic 14 and the fixing port 15 positioned at the center of conductor loop 4,
The wire bicyclic 14 is in " 3 " shape, including 2 guidewire ports 16, and the guidewire port 16 is in 3/4 circular arc, its correspondence central angle
For α, α=270 °；
The conductor loop 4 is fixed in connecting rod 3, the fix bar 2 by fixing port 15 with screw and the second screw 13
Hook spring 17 is provided between connecting rod 3, there is hook at the two ends of the hook spring 17, and end hook hangs over the extension of connecting rod 3 thereon
On shackle 12, lower end is hooked on a latch 18, and the latch 18 inserts pin clamp 9, and is connected in " J " that pin clamp 9 is in
The lower end of shape, connecting rod 3 and conductor loop 4 are connected, the fix bar 2 passes through under the elastic force effect of hook spring 17 with fix bar 2
Screw and the first screw 7 are fixed on twisting machine；
Further, the cylindrical axis that the cylindrical axis that the connector 8 is in is in fix bar 2
For same straight line；
Further, the quantity of conversion tooth 10 is identical with the quantity of guidewire port 16 on conductor loop 4, the upper end of conversion tooth 10
Distance apart from the upper end of connector 8 is D2, the D2>0.5mm；
Further, the connector 8 is in cylindrical radius R1, the thickness D1 of conversion tooth 10 and the institute of connecting rod 3
There is following relation, the R1 in the cylindrical radius R2 for being in>R2>(R1-D1).PTFE long filaments produced by the present invention can be used for making
The base fabric of filtrate is made, sewing thread sewing filtering bag can be processed into, and is twisted toothpick line, its another important application is by establishment
The ion exchange film base material of chlor-alkali project is made, the oxygen limit index of PTFE long filaments is up to 0.98, and intensity is high, when line density is
200th, during 400,450 and 500den, corresponding strength is 8.5 respectively, 16,18,20N, tensile strength is up to 4gf/den, is applicable
Temperature is -210-265 DEG C, and PH tolerance value is 0-14PH, and acid and alkali-resistance, corrosion-resistant, chemical stability are extremely strong, non-aging without dirt
Dye.
The PTFE long filament production twisting machines of the present invention, its is simple in construction, reasonable in design, and conducting mechanism instead of original
Steel ring, enters row conductor, can simultaneously to it is multidirectional enter row conductor, also can unidirectional conductor, wire excellent uses as single-wire line
When, multiple guidewire ports thereon can be changed arbitrarily, such as some guidewire port serious wear, longitudinally can be pulled out conductor loop, after rotation,
Put down again, realize the switching of guidewire port, it is convenient and swift, without being changed immediately as existing steel ring, without shutting down, improve sth. made by twisting
The efficiency of line machine.Meanwhile, twisting machine of the invention, with wire excellent, can multidirectional wire the characteristics of, guidewire port can be any
Switching, such as some guidewire port weares and teares, without with changing, switching guidewire port immediately.
Here description of the invention and application be illustrative, be not wishing to limit the scope of the invention to above-described embodiment
In, therefore, the present invention is not limited by the present embodiment, and the technical scheme that any use equivalence replacement is obtained is in present invention protection
In the range of.
Claims (1)
1. a kind of preparation method of PTFE long filaments, it is characterized in that, its preparation method is as follows：
(1) count 50-70 parts of polytetrafluoroethylene (PTFE), 5-15 parts of succinic acid, 0-6 parts of salicylic acid, 3-8 parts of p-dichlorobenzene by weight
Stirring at normal temperature 1-2h obtains primary compound in mixer；
(2) primary compound is put into baking oven and dries 4-6h, drying temperature is 45-55 DEG C；
(3) the primary compound after being dried through step (2), is added in press mould with 150-220Kg/cm<sub>2</
sub>The pressure of unit is suppressed 30-50 minutes, and blank is made；
(4) by blank add extruder in 50-100Mpa pressure extrusion into a diameter of 0.8mm primary filament；
(5) primary filament is put into drafting machine and carries out heating two grades of silks of stretching, stretching is divided into oil removing, three steps of sintering and stretching,
Except oil temperature be 280-320 DEG C, sintering temperature be 250-300 DEG C, draft temperature be 350-450 DEG C；
(6) two grades of silks are put into twisting machine PTFE long filaments of twisting thread to obtain, first twist twisting count is twisted with the fingers for 480-520, retwist twisting count is 380-
420 twist with the fingers；
(7) PTFE long filaments are shaped on forming machine, it is qualified after testing after PTFE long filaments be wound packaging；
The twisting machine includes conducting mechanism, and the conducting mechanism includes fix bar, connecting rod and conductor loop, and the fix bar is in
Cylinder, including fixing end and connection end, the fixing end are provided with the first screw, and first screw is in along fix bar
Cylindrical is axially arranged, and the connection end is provided with connector and pin clamp, and the connector is in cylinder, its cylinder for being in
The radius of shape is R1, and the inwall of connector is provided with conversion tooth, and the conversion tooth is elongated, and is in cylinder with connector
Axis parallel, the thickness of conversion tooth is D1, and the pin clamp is " J " shaped, and quantity is 2, is symmetricly set in connection end, is inserted
Lock-joint runs through connection end, and connects connector；
The connecting rod is in cylinder, and its radius is R2, and the outer wall of connecting rod is provided with conversion groove, the conversion groove size sum
Amount is agreed with conversion tooth, and the lower end of connecting rod is provided with hook ring, and upper end is provided with the second screw, and second screw is along connecting rod institute
Be in is cylindrical axially arranged, and the hook ring is in annular；The conductor loop is bicyclic provided with 2 wires being disposed opposite to each other
With the fixing port positioned at conductor loop center, it is in " 3 " shape that the wire is bicyclic, including 2 guidewire ports, and the guidewire port is in 3/4
Circular arc, its correspondence central angle is α, α=270 °；
The conductor loop is fixed in connecting rod by fixing port with screw and the second screw, the fix bar and connecting rod it
Between be provided with hook spring, there is hook at the two ends of the hook spring, and end hook is hung on the hook ring of connecting rod thereon, and lower end is hooked on
On one latch, the latch inserts pin clamp, and is connected in the lower end of " J " shape that pin clamp is in, and connecting rod and conductor loop exist
Under the elastic force effect of hook spring, it is connected with fix bar, the fix bar is fixed on twisting machine by screw and the first screw；
The cylindrical axis that the cylindrical axis that the connector is in is in fix bar is same straight line；
The conversion tooth quantity is identical with the guidewire port quantity on conductor loop, the upper end of conversion tooth apart from the upper end of connector away from
From for D2, the D2>0.5mm；
The cylindrical radius R2 that cylindrical radius R1, the thickness D1 of conversion tooth and the connecting rod that the connector is in are in
There is following relation, the R1>R2>(R1-D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510541650.1A CN105239230B (en) | 2015-08-31 | 2015-08-31 | A kind of preparation method of PTFE long filaments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510541650.1A CN105239230B (en) | 2015-08-31 | 2015-08-31 | A kind of preparation method of PTFE long filaments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105239230A CN105239230A (en) | 2016-01-13 |
| CN105239230B true CN105239230B (en) | 2017-09-12 |
Family
ID=55037039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510541650.1A Active CN105239230B (en) | 2015-08-31 | 2015-08-31 | A kind of preparation method of PTFE long filaments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105239230B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338496A (en) * | 2017-07-20 | 2017-11-10 | 太仓艺佳乐化纤有限公司 | A kind of heat-proof combustion-resistant chemical fibre |
| CN113215672A (en) * | 2021-03-02 | 2021-08-06 | 上海灵氟隆膜技术有限公司 | Preparation method of polytetrafluoroethylene continuous filament for fuel cell diaphragm |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966786A (en) * | 2006-03-08 | 2007-05-23 | 常州市兴诚高分子材料有限公司 | High strength polytetrafluoroethylene fiber and process for producing same |
| CN101962839A (en) * | 2010-09-10 | 2011-02-02 | 常州市兴诚高分子材料有限公司 | Process for producing polytetrafluoroethylene yarn for enhancing fabrics |
| CN101967708A (en) * | 2010-09-10 | 2011-02-09 | 常州市兴诚高分子材料有限公司 | Production process of high-strength polytetrafluoroethylene wire for stitching |
| CN101967694A (en) * | 2010-09-21 | 2011-02-09 | 浙江格尔泰斯环保特材科技有限公司 | Manufacturing method of polytetrafluoroethylene fibers |
| CN102041591A (en) * | 2010-11-19 | 2011-05-04 | 淄博新力特种纤维科技有限公司 | High-temperature-resistant composite sewing thread |
| CN102102232A (en) * | 2010-11-22 | 2011-06-22 | 宋朋泽 | Method for preparing polytetrafluoroethylene fiber in drawing manner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004190172A (en) * | 2002-12-11 | 2004-07-08 | Toray Ind Inc | False-twisted bulky yarn and method for producing the same |
-
2015
- 2015-08-31 CN CN201510541650.1A patent/CN105239230B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966786A (en) * | 2006-03-08 | 2007-05-23 | 常州市兴诚高分子材料有限公司 | High strength polytetrafluoroethylene fiber and process for producing same |
| CN101962839A (en) * | 2010-09-10 | 2011-02-02 | 常州市兴诚高分子材料有限公司 | Process for producing polytetrafluoroethylene yarn for enhancing fabrics |
| CN101967708A (en) * | 2010-09-10 | 2011-02-09 | 常州市兴诚高分子材料有限公司 | Production process of high-strength polytetrafluoroethylene wire for stitching |
| CN101967694A (en) * | 2010-09-21 | 2011-02-09 | 浙江格尔泰斯环保特材科技有限公司 | Manufacturing method of polytetrafluoroethylene fibers |
| CN102041591A (en) * | 2010-11-19 | 2011-05-04 | 淄博新力特种纤维科技有限公司 | High-temperature-resistant composite sewing thread |
| CN102102232A (en) * | 2010-11-22 | 2011-06-22 | 宋朋泽 | Method for preparing polytetrafluoroethylene fiber in drawing manner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105239230A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106702535B (en) | A kind of graphene fiber and preparation method thereof | |
| CN105239230B (en) | A kind of preparation method of PTFE long filaments | |
| CN102041591B (en) | High-temperature-resistant composite sewing thread and manufacture method | |
| CN103255488A (en) | Preparation method of high-strength viscose fiber | |
| CN101307518A (en) | Metal fiber ply yarn and method for making same | |
| CN110512294A (en) | A kind of core-skin type composite monofilament, production method and its application | |
| CN103184582A (en) | Preparation method of PVA composite high-strength high-modulus cellulose fiber | |
| CN201053088Y (en) | High-strength polythene braided wire for fishing | |
| CN101812754A (en) | Process for producing special covered yarn and product thereof | |
| CN206244975U (en) | A kind of waterproof antistatic yarn | |
| CN206188971U (en) | Change structure mariages covering yarn | |
| CN108914314A (en) | A kind of manufacture craft of the blended fabric for having graphene fiber | |
| CN110129933A (en) | A kind of polytetrafluoroethylene (PTFE) multifilament and preparation method thereof | |
| CN111188112A (en) | Novel vortex spinning colorful spun yarn and production process | |
| CN107385563B (en) | Graphene modified alginate fiber and preparation method and application thereof | |
| CN103924352A (en) | Corrosion-resisting embroidery thread for embroidery | |
| CN206352179U (en) | It is a kind of to reduce the wrap yarn of filoplume | |
| CN201155003Y (en) | Doubled yarn | |
| CN204434903U (en) | A kind of industrial rope | |
| CN106757451A (en) | A kind of method for producing the oxadiazole long filament of fragrant adoption 1,3,4 | |
| CN215887380U (en) | Cotton chemical fiber yarn with high strength and good elasticity | |
| CN202323157U (en) | Spinneret plate for producing high resilience recycle polyester staple fibers | |
| CN204959141U (en) | Twisting frame for PTFE filament extrusion | |
| CN205711082U (en) | A kind of full-drawn yarn spinneret, spinning head and spray webbing equipment | |
| CN105040429A (en) | Preparation method for flute-shaped aramid nano-fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 212200 66 Zhenjiang Road, Yangzhong Economic Development Zone, Jiangsu, China Applicant after: JIANGSU HONGYAN PLASTIC TECHNOLOGY CO., LTD. Address before: 212200 66 Zhenjiang Road, Yangzhong Economic Development Zone, Jiangsu, China Applicant before: JIANGSU HONGYAN PLASTIC PRODUCT CO., LTD. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |