CN112522807A - Processing technology of low-heat-conduction flame-retardant polyester low-stretch yarn - Google Patents
Processing technology of low-heat-conduction flame-retardant polyester low-stretch yarn Download PDFInfo
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- CN112522807A CN112522807A CN202011370326.5A CN202011370326A CN112522807A CN 112522807 A CN112522807 A CN 112522807A CN 202011370326 A CN202011370326 A CN 202011370326A CN 112522807 A CN112522807 A CN 112522807A
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- polyester
- low
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- retardant
- yarn
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- 229920000728 polyester Polymers 0.000 title claims abstract description 89
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000003063 flame retardant Substances 0.000 title claims abstract description 59
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000009987 spinning Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000007885 magnetic separation Methods 0.000 claims abstract description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 17
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 11
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 11
- 239000004595 color masterbatch Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000007822 coupling agent Substances 0.000 claims description 8
- 229910021485 fumed silica Inorganic materials 0.000 claims description 8
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 8
- 239000000347 magnesium hydroxide Substances 0.000 claims description 8
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 235000012424 soybean oil Nutrition 0.000 claims description 5
- 239000003549 soybean oil Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- -1 alkyl phosphate Chemical compound 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 239000008041 oiling agent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 229920004933 Terylene® Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 241001589086 Bellapiscis medius Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
Classifications
-
- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
- D01D5/08—Melt 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
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- 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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
- D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a processing technology of low-heat-conduction flame-retardant polyester low-stretch yarns, which comprises the following steps of: step 1, drying the polyester slices subjected to magnetic separation, and then sending the polyester slices into a mixer to be uniformly blended with the flame-retardant master batch and the master batch; step 2, feeding the polyester chips mixed in the step 1 into a double-screw extruder, heating and melting the polyester chips, extruding the polyester chips into a spinning box, spinning the polyester chips through a spinneret plate, and then performing circular blowing air cooling forming; step 3, oiling the surface of the polyester fiber yarn subjected to air cooling forming, and cooling to form polyester filament yarn; and 4, sequentially passing the polyester filament yarn through a network nozzle, a yarn guide, a first pair of traction rollers and an induction heating roller for heating and destressing, a second pair of traction rollers for drafting, a hot box for heating and destressing, cooling, introducing into a false twisting machine for false twisting, and then winding to obtain the flame-retardant polyester low-stretch yarn. By the mode, the low-stretch yarn with good flame-retardant and heat-insulating properties can be obtained, the manufacturing process is mature, the fiber performance is stable and uniform, the hand feeling is soft, and the spinnability is good.
Description
Technical Field
The invention relates to the field of polyester spinning, in particular to a processing technology of low-heat-conduction flame-retardant polyester low-stretch yarns.
Background
The terylene low stretch yarn is a common raw material for knitting or weaving processing, is generally used as a raw material for household textiles such as curtain cloth, sofa cloth, quilt cover, bedspread, suit, shirt and the like, and has a wide application range, so that the technology of the low stretch yarn production in China is mature and the quality is stable at present, but the terylene low stretch yarn in the market has poor flame retardant property although the physical property is stable at present, and cannot meet the requirements of some textiles used in special scenes.
Disclosure of Invention
The invention mainly solves the technical problem of providing a processing technology of the polyester low-stretch yarns, which can improve the flame retardant property of the polyester low-stretch yarns.
In order to solve the technical problems, the invention adopts a technical scheme that: the processing technology of the low-heat-conduction flame-retardant polyester low-stretch yarn comprises the following steps:
step 1, drying the polyester slices subjected to magnetic separation, and then sending the polyester slices into a mixer to be uniformly blended with the flame-retardant master batch and the master batch;
step 2, feeding the polyester chips mixed in the step 1 into a double-screw extruder, heating and melting the polyester chips, extruding the polyester chips into a spinning box, spinning the polyester chips through a spinneret plate, and then performing circular blowing air cooling forming;
step 3, oiling the surface of the polyester fiber yarn subjected to air cooling forming, and cooling to form polyester filament yarn;
and 4, heating and destressing the polyester filament yarn by a network nozzle, a yarn guide, a first pair of traction rollers and an induction heating roller, drafting by a second pair of traction rollers, heating and destressing by a hot box, cooling, introducing into a false twisting machine for false twisting, and winding to obtain the flame-retardant polyester low-stretch yarn.
In a preferred embodiment of the present invention, the mixing ratio of the polyester chip, the flame-retardant masterbatch and the color masterbatch in step 1 is: 100: 10-20: 1 to 3.
In a preferred embodiment of the invention, the flame-retardant master batch comprises the following components in parts by mass: 10-20% of tributyl phosphate, 8-10% of magnesium hydroxide, 8-10% of fumed silica, 5-10% of montmorillonite, 1-3% of coupling agent and the balance of amorphous polyester chips.
In a preferred embodiment of the invention, the base of the masterbatch is also a non-crystalline polyester.
In a preferred embodiment of the present invention, the oiling agent used in the step 3 is epoxidized soybean oil mixed with 5% of alkyl phosphate.
In a preferred embodiment of the present invention, the draw ratio of the first pair of draw rolls in step 4 is 1.1-1.3
In a preferred embodiment of the invention, the draw ratio of the second pair of counter-traction rollers in step 4 is 1.6 · 1.8.
In a preferred embodiment of the present invention, the temperature of the induction heating roller in step 4 is 165-185 ℃, and the temperature of the hot box is 120-130 ℃.
The invention has the beneficial effects that: the technical scheme of the invention is to reform the spinning formula of the polyester filament yarn on the basis of the prior art, directly add the prepared flame retardant during spinning to fundamentally improve the flame retardant property of the polyester low stretch yarn, and simultaneously reduce the resilience of the polyester filament yarn through multiple stretching orientations, thereby finally obtaining the product with good flame retardant and heat insulation properties. The invention has the advantages of mature weaving process, stable and uniform fiber performance, soft hand feeling and good spinning adaptability, and can be applied to various scenes.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
The embodiment of the invention comprises the following steps:
example 1
The flame-retardant polyester low-stretch yarn is prepared from the following raw materials in percentage by weight:
the mixing ratio of the polyester chip to the flame-retardant master batch to the color master batch is as follows: 100:10: 1 to 3.
The flame-retardant master batch comprises the following components in parts by mass: 20% of tributyl phosphate, 10% of magnesium hydroxide, 10% of fumed silica, 10% of montmorillonite, 3% of coupling agent and the balance of non-crystalline polyester chips, wherein the base material of the color master batch is also non-crystalline polyester.
The flame-retardant master batch adopts the proportion because tributyl phosphate has good flame-retardant effect, magnesium hydroxide and tributyl phosphate have excellent synergistic effect, the flame-retardant property of the tributyl phosphate can be improved, the using amount of the tributyl phosphate can be obviously reduced, fumed silica not only has certain flame-retardant effect, but also has good heat insulation function, the porous adsorption property of montmorillonite can be used as a carrier of a flame retardant to be dispersed in the whole polyester system, the uniformity of the system is improved, local accumulation is prevented, the compatibility between the inorganic material and the polyester can be improved by using a coupling agent, and the montmorillonite can be dispersed more uniformly in processing.
Example 2
The flame-retardant polyester low-stretch yarn is prepared from the following raw materials in percentage by weight:
the mixing ratio of the polyester chip to the flame-retardant master batch to the color master batch is as follows: 100: 20: 1 to 3.
The flame-retardant master batch comprises the following components in parts by mass: 10% of tributyl phosphate, 8% of magnesium hydroxide, 8% of fumed silica, 5% of montmorillonite, 1% of coupling agent and the balance of non-crystalline polyester chips, wherein the base material of the color master batch is also non-crystalline polyester.
The flame-retardant master batch adopts the proportion because tributyl phosphate has good flame-retardant effect, magnesium hydroxide and tributyl phosphate have excellent synergistic effect, the flame-retardant property of the tributyl phosphate can be improved, the using amount of the tributyl phosphate can be obviously reduced, fumed silica not only has certain flame-retardant effect, but also has good heat insulation function, the porous adsorption property of montmorillonite can be used as a carrier of a flame retardant to be dispersed in the whole polyester system, the uniformity of the system is improved, local accumulation is prevented, the compatibility between the inorganic material and the polyester can be improved by using a coupling agent, and the montmorillonite can be dispersed more uniformly in processing.
Example 3
The flame-retardant polyester low-stretch yarn is prepared from the following raw materials in percentage by weight:
the mixing ratio of the polyester chip to the flame-retardant master batch to the color master batch is as follows: 100:15: 1 to 3.
The flame-retardant master batch comprises the following components in parts by mass: 15% of tributyl phosphate, 10% of magnesium hydroxide, 10% of fumed silica, 10% of montmorillonite, 3% of coupling agent and the balance of non-crystalline polyester chips, wherein the base material of the color master batch is also non-crystalline polyester.
The flame-retardant master batch adopts the proportion because tributyl phosphate has good flame-retardant effect, magnesium hydroxide and tributyl phosphate have excellent synergistic effect, the flame-retardant property of the tributyl phosphate can be improved, the using amount of the tributyl phosphate can be obviously reduced, fumed silica not only has certain flame-retardant effect, but also has good heat insulation function, the porous adsorption property of montmorillonite can be used as a carrier of a flame retardant to be dispersed in the whole polyester system, the uniformity of the system is improved, local accumulation is prevented, the compatibility between the inorganic material and the polyester can be improved by using a coupling agent, and the montmorillonite can be dispersed more uniformly in processing.
The flame retardant is processed according to the following processing steps after being sequentially mixed according to the above embodiments 1-3:
step 1, drying the magnetically-separated polyester chips, and then feeding the polyester chips into a mixer to be uniformly mixed with flame-retardant master batches and color master batches according to the proportion of the process requirement;
step 2, feeding the polyester chips mixed in the step 1 into a double-screw extruder, heating and melting the polyester chips, extruding the polyester chips into a spinning box, spinning the polyester chips through a spinneret plate, and then performing circular blowing air cooling forming;
step 3, mixing epoxidized soybean oil with alkyl phosphate on the surface of the polyester fiber yarn subjected to air cooling forming, cooling the polyester fiber yarn to form polyester filament yarn, wherein the alkyl phosphate is added into the epoxidized soybean oil to further reduce the combustion characteristic of the surface of the polyester filament yarn;
and 4, heating the polyester filament yarn to 165-185% through a network nozzle, a yarn guide, a first pair of traction rollers and an induction heating roller in sequence, drafting through a second pair of traction rollers, heating through a hot box (120-140%), cooling, introducing into a false twister for false twisting, and winding to obtain the flame-retardant polyester low-stretch yarn.
The stretching ratio of the first pair of traction rollers in the step 4 is 1.1-1.3, the stretching ratio of the second pair of traction rollers in the step 4 is 1.6-1.8, the surface temperature of the induction heating roller in the step 4 is 140-150 ℃, and the heating temperature of the hot box is 120-130 ℃. The reason why the second stretch ratio is larger than the first stretch ratio is that the first stretch is cold stretch, the stretch breaking is easily caused when the stretch ratio is too large, the temperature is relatively high during the second stretch after the internal stress is eliminated by heating, so the stretch ratio is large, after the internal stress is eliminated by twice stretches, the fibers in the polyester yarn are forced to be oriented along the stretch direction, the overall elasticity is naturally reduced, and the processing standard of the low-elasticity yarn is reached. The reason that the surface temperature of the induction heating roller is higher is that the winding time of the polyester filament on the roller is shorter, the actual temperature is lower, and the stress elimination degree is lower than that of the heating box.
The actual measurement results of the flame retardant properties of the above examples 1 to 3 are shown in the following table:
the above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The processing technology of the low-heat-conduction flame-retardant polyester low-stretch yarn is characterized by comprising the following steps of:
step 1, drying the polyester slices subjected to magnetic separation, and then sending the polyester slices into a mixer to be uniformly blended with the flame-retardant master batch and the master batch;
step 2, feeding the polyester chips mixed in the step 1 into a double-screw extruder, heating and melting the polyester chips, extruding the polyester chips into a spinning box, spinning the polyester chips through a spinneret plate, and then performing circular blowing air cooling forming;
step 3, oiling the surface of the polyester fiber yarn subjected to air cooling forming, and cooling to form polyester filament yarn;
and 4, heating and destressing the polyester filament yarn by a network nozzle, a yarn guide, a first pair of traction rollers and an induction heating roller, drafting by a second pair of traction rollers, heating and destressing by a hot box, cooling, introducing into a false twisting machine for false twisting, and winding to obtain the flame-retardant polyester low-stretch yarn.
2. The processing technology of the low-heat-conduction flame-retardant polyester low stretch yarn as claimed in claim 1, wherein the mixing ratio of the polyester chip to the flame-retardant master batch and the color master batch in the step 1 is as follows: 100: 10-20: 1 to 3.
3. The processing technology of the low-heat-conduction flame-retardant polyester drawn textured yarn as claimed in claim 1, wherein the flame-retardant master batch comprises the following components in parts by mass: 10-20% of tributyl phosphate, 8-10% of magnesium hydroxide, 8-10% of fumed silica, 5-10% of montmorillonite, 1-3% of coupling agent and the balance of amorphous polyester chips.
4. The processing technology of the low thermal conductive flame retardant polyester low stretch yarn as claimed in claim 1, wherein the base material of the color master batch is also amorphous polyester.
5. The processing technology of the low thermal conductivity flame retardant polyester low stretch yarn according to claim 1, wherein the oiling agent used in the oiling in the step 3 is epoxidized soybean oil.
6. The processing technology of the low thermal conductive flame retardant polyester low stretch yarn as claimed in claim 1, wherein 5% of alkyl phosphate is mixed in the epoxidized soybean oil.
7. The processing technology of the low-heat-conduction flame-retardant polyester low-stretch yarn as claimed in claim 1, wherein the draw ratio of the first pair of drawing rollers in the step 4 is 1.1-1.3
The processing technology of the low heat-conduction flame-retardant polyester low stretch yarn as claimed in claim 1, wherein the draw ratio of the second pair of drawing rollers in the step 4 is 1.6-1.8
The processing technology of the low-heat-conduction flame-retardant polyester low-stretch yarn as claimed in claim 1, wherein the temperature of the induction heating roller in the step 4 is 165-185 ℃.
8. The processing technology of the low-heat-conduction flame-retardant polyester low-stretch yarn as claimed in claim 1, wherein the heating temperature of the hot box in the step 4 is 120-130 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370326.5A CN112522807A (en) | 2020-11-30 | 2020-11-30 | Processing technology of low-heat-conduction flame-retardant polyester low-stretch yarn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370326.5A CN112522807A (en) | 2020-11-30 | 2020-11-30 | Processing technology of low-heat-conduction flame-retardant polyester low-stretch yarn |
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| CN112522807A true CN112522807A (en) | 2021-03-19 |
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| CN202011370326.5A Pending CN112522807A (en) | 2020-11-30 | 2020-11-30 | Processing technology of low-heat-conduction flame-retardant polyester low-stretch yarn |
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| CN113802198A (en) * | 2021-09-16 | 2021-12-17 | 李小龙 | Preparation system and preparation method of antibacterial polyester low-stretch yarns |
| CN116180285A (en) * | 2023-02-01 | 2023-05-30 | 张家港市荣昌涤纶毛条有限公司 | Composite polyester ultra-soft long cilia strip and preparation method thereof |
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Application publication date: 20210319 |