CN113913986A - Polyester yarn and production method thereof - Google Patents
Polyester yarn and production method thereof Download PDFInfo
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- CN113913986A CN113913986A CN202111301889.3A CN202111301889A CN113913986A CN 113913986 A CN113913986 A CN 113913986A CN 202111301889 A CN202111301889 A CN 202111301889A CN 113913986 A CN113913986 A CN 113913986A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 95
- 229920000742 Cotton Polymers 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 238000009960 carding Methods 0.000 claims abstract description 31
- 238000009987 spinning Methods 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 9
- 238000007664 blowing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 2
- 229920004933 Terylene® Polymers 0.000 abstract 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 238000009958 sewing Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
- D02G3/28—Doubled, plied, or cabled 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
-
- 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 polyester yarn and a production method thereof, belonging to the technical field of textile. The production method of the polyester yarn comprises the following steps: taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; in the carding process, the spacing between a cotton feeding plate and a licker-in is 14-15 inches, the spacing between a cylinder and a cover plate 5 points is 8 inches, 7 inches, 8 inches, the spacing between the licker-in and a small under-grid inlet is 10-12mm, and the dry weight ration of carding is 18.2-18.5g/5 m; in the spinning process, the twist number is 84-85 twist/10 cm, and the twist direction is S twist; in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 80-82 twist/10 cm, and the twisting direction is Z twist. The invention also comprises the polyester yarn prepared by the preparation method. The number of the terylene threads is 40 high-strength terylene threads, and the neps are few.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a polyester yarn and a production method thereof.
Background
The polyester fiber is a synthetic fiber with excellent quality, the strength of the prepared suture is high, the suture is second to the nylon thread in various sutures, and the strength of the suture cannot be reduced in a wet state. The shrinkage rate of the sewing machine is low, and the shrinkage is less than 1% after proper shaping, so that the sewn stitches can always keep flat, straight and beautiful without shrinkage. The wear resistance is second to that of nylon. Low moisture regain, high heat resistance, low temperature resistance, light resistance and water resistance. Therefore, the polyester thread is a very wide variety and replaces cotton sewing thread in many occasions. The polyester thread has wide application, can be used for clothing sewing of cotton fabrics, chemical fiber fabrics and blended fabrics, and can also be used for sewing knitted outer garments. The special polyester yarn is also an excellent yarn for the shoe and cap leather industry.
However, the polyester fiber has low hygroscopicity and poor conductivity, the raw material is fluffy, and static electricity and twisting winding are easily generated in the spinning process, so that neps are increased, and the quality of finished yarn is influenced.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a production method of a polyester yarn, which solves the technical problem of large neps in the production process of the polyester yarn in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention provides a production method of a polyester yarn, which comprises the following steps:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process;
in the blowing process, the spacing between a cotton feeding plate and a licker-in is 14-15 inches, the spacing between a cylinder and a cover plate 5 points is 8 inches, 7 inches, 8 inches, the spacing between the licker-in and a small under screen inlet is 10-12mm, the spacing between an outlet is 2-3mm, and the dry weight ration of cotton carding is 18.2-18.5g/5 m;
in the spinning process, the twist number is 84-85 twist/10 cm, and the twist direction is S twist;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 80-82 twist/10 cm, and the twisting direction is Z twist.
Furthermore, the specific strength of the polyester fiber is 5.8-6.1CN/dtex, the elongation at break is 21.8-22.5%, the linear density is 1.33-1.5dtex, and the length is 38-40 mm.
Furthermore, in the roving process, the twist of the roving is 2.1-2.2 twists/10 cm.
In the roving process, the roller gauge is 12mm multiplied by 26mm multiplied by 45mm, and the back zone draft is 1.2 to 1.3 times.
Furthermore, in the roving process, the jaw gauge is 9-9.5mm, the dry weight basis of the roving is 4.73-4.8 g/10 m, and the mechanical draft is 7.18-7.2 times.
Further, in the roving process, the spindle speed is 550-560 r/min.
Further, in the spinning step, the mechanical draft is 32 to 34 times, and the roller gauge is 17mm × 38 mm.
Furthermore, in the spinning process, the drafting multiple of the rear zone is 1.2-1.4 times, the nip gauge is 2.5-2.8mm, the diameter of the front roller is 27-28mm, and the rotating speed of the front roller is 190-.
Further, in the drawing process, after two times of combination, 8 pieces of the raw materials are combined together, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm multiplied by 14mm multiplied by 26mm, and the diameter of a bell mouth is 3-3.2 mm; combining two 8 groups, the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of the bell mouth is 3.2-3.4 mm.
In addition, the invention also provides a polyester yarn prepared by the preparation method.
Compared with the prior art, the invention has the beneficial effects that: taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; in the blowing process, the spacing between a cotton feeding plate and a licker-in is 14-15 inches, the spacing between a cylinder and a cover plate 5 points is 8 inches, 7 inches, 8 inches, the spacing between the licker-in and a small under screen inlet is 10-12mm, the spacing between an outlet is 2-3mm, and the dry weight ration of cotton carding is 18.2-18.5g/5 m; in the spinning process, the twist number is 84-85 twist/10 cm, and the twist direction is S twist; in the two-for-one twisting procedure, single yarn is twisted into threads by 2 strands, the twist degree is 80-82 twist/10 cm, the twisting direction is Z twist, and the high-strength polyester yarn with 40 counts is obtained, and cotton knots are few.
The obtained polyester yarn has high strength, good wear resistance, low shrinkage, good hygroscopicity and heat resistance, corrosion resistance, difficult mildew and rot, no moth-eating, good color fastness, no fading and no color change, and can be widely applied to clothing sewing of cotton fabrics, chemical fibers and blended fabrics.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The specific embodiment provides a production method of a polyester yarn, which comprises the following steps:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; the specific strength of the polyester fiber is 5.8-6.1CN/dtex, the elongation at break is 21.8-22.5%, the linear density is 1.33-1.5dtex, and the length is 38-40 mm;
in the blowing process, the spacing between a cotton feeding plate and a licker-in is 14-15 inches, the spacing between a cylinder and a cover plate 5 points is 8 inches, 7 inches, 8 inches, the spacing between the licker-in and a small under screen inlet is 10-12mm, the spacing between an outlet is 2-3mm, and the dry weight ration of cotton carding is 18.2-18.5g/5 m;
in the drawing process, after two times of combination, 8 pieces of the raw materials are combined together, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm multiplied by 14mm multiplied by 26mm, and the diameter of a bell mouth is 3-3.2 mm; combining 8 pieces of the two, wherein the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of a bell mouth is 3.2-3.4 mm;
in the roving process, the twist of the roving is 2.1-2.2 twist/10 cm, the gauge of a roller is 12mm multiplied by 26mm multiplied by 45mm, the drafting of a rear zone is 1.2-1.3 times, the gauge of a jaw is 9-9.5mm, the dry weight ration of the roving is 4.73-4.8 g/10 m, the mechanical drafting is 7.18-7.2 times, and the ingot speed is 550-;
in the spinning process, the twist is 84-85 twist/10 cm, the twisting direction is S twist, the model of a ring is PG1-4254, and the model of a used steel wire ring is W32138 #; the mechanical draft multiple is 32-34 times, and the roller gauge is 17mm multiplied by 38 mm; the draft multiple of the rear zone is 1.2-1.4 times, the jaw space is 2.5-2.8mm, the diameter of the front roller is 27-28mm, and the rotating speed of the front roller is 190-;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 80-82 twist/10 cm, and the twisting direction is Z twist.
The specific embodiment further comprises a polyester yarn prepared by the preparation method.
Example 1
The embodiment provides a polyester yarn, which is produced by the following method:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; the specific strength of the polyester fiber is 6.1CN/dtex, the elongation at break is 21.8%, the linear density is 1.33dtex, and the length is 38 mm;
specifically, in the carding procedure, the polyester fiber is coiled on a cotton grabbing circular table, and the dry weight ration of the cotton coil is 375 g/m; the raw materials are fluffy, and static electricity and twisting winding are easily generated in the spinning process, so that neps are increased. The cotton carding process is characterized in that the cotton carding space is reasonably set, the cotton feeding plate and the licker-in are 14-inch yarns, the 5-point space between the cylinder and the cover plate is 8-inch yarns multiplied by 7-inch yarns multiplied by 8-inch yarns, the licker-in and the small under screen inlet are 10mm in space, the outlet space is 2mm, and the cotton carding dry weight ration is 18.2g/5 m;
in the drawing process, after two times of combination, 8 pieces of the drawing are combined together, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm multiplied by 14mm multiplied by 26mm, and the diameter of a bell mouth is 3 mm; combining 8 pieces of the two, wherein the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of a bell mouth is 3.2 mm;
in the roving process, the twist of the roving is 2.1 twist/10 cm, the gauge of a roller is 12mm multiplied by 26mm multiplied by 45mm, the drafting of a rear zone is 1.2 times, the gauge of a jaw is 9mm, the dry weight ration of the roving is 4.73 g/10 m, the mechanical drafting is 7.18 times, and the spindle speed is 550 r/min;
in the spinning process, the twist number is 84 twist/10 cm, the twist direction is S twist, the model of a ring is PG1-4254, and the model of a used steel wire ring is W32138 #; the mechanical draft multiple is 32 times, and the roller gauge is 17mm multiplied by 38 mm; the drafting multiple of the rear zone is 1.2 times, the jaw gauge is 2.5mm, the diameter of the front roller is 27mm, and the rotating speed of the front roller is 190 r/min;
in the winding process, single yarn winding is produced on an automatic winder in japan village, neps N: 350% × 0.5cm, short and thick S: 200% × 2.1cm, length and thickness L: 50% × 32cm, detail T: -35% x 30 cm;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 80 twists/10 cm, and the twist direction is Z twists.
Example 2
The embodiment provides a polyester yarn, which is produced by the following method:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; the specific strength of the polyester fiber is 6.1CN/dtex, the elongation at break is 21.8%, the linear density is 1.33dtex, and the length is 38 mm;
specifically, in the carding procedure, the polyester fiber is coiled on a cotton grabbing circular table, and the dry weight ration of the cotton coil is 375 g/m; the raw materials are fluffy, and static electricity and twisting winding are easily generated in the spinning process, so that neps are increased. In the cotton carding process, cotton carding space is reasonably set, the cotton feeding plate and the licker-in are 15-inch yarns, the 5-point space between the cylinder and the cover plate is 8-inch yarns multiplied by 7-inch yarns multiplied by 8-inch yarns, the space between the licker-in and the small under screen inlet is 12mm, the space between the outlet is 3mm, and the dry weight ration of cotton carding is 18.3g/5 m;
in the drawing process, after two times of combination, 8 pieces of the drawing are combined together, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm multiplied by 14mm multiplied by 26mm, and the diameter of a bell mouth is 3.2 mm; combining 8 pieces of the two, wherein the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of a bell mouth is 3.3 mm;
in the roving process, the twist of the roving is 2.2 twists/10 cm, the gauge of a roller is 12mm multiplied by 26mm multiplied by 45mm, the drafting of a rear zone is 1.3 times, the gauge of a jaw is 9.5mm, the dry weight ration of the roving is 4.75 g/10 m, the mechanical drafting is 7.2 times, and the spindle speed is 560 r/min;
in the spinning process, the twist number is 85 twist/10 cm, the twist direction is S twist, the model of a ring is PG1-4254, and the model of a used steel wire ring is W32138 #; the mechanical draft multiple is 33 times, and the roller gauge is 17mm multiplied by 38 mm; the drafting multiple of the rear zone is 1.3 times, the jaw gauge is 2.6mm, the diameter of the front roller is 28mm, and the rotating speed of the front roller is 200 r/min;
in the winding process, single yarn winding is produced on an automatic winder in japan village, neps N: 350% × 0.5cm, short and thick S: 200% × 2.1cm, length and thickness L: 50% × 32cm, detail T: -35% x 30 cm;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 81 twists/10 cm, and the twist direction is Z twists.
Example 3
The embodiment provides a polyester yarn, which is produced by the following method:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; the specific strength of the polyester fiber is 6.1CN/dtex, the elongation at break is 21.8%, the linear density is 1.33dtex, and the length is 38 mm;
specifically, in the carding procedure, the polyester fiber is coiled on a cotton grabbing circular table, and the dry weight ration of the cotton coil is 375 g/m; the raw materials are fluffy, and static electricity and twisting winding are easily generated in the spinning process, so that neps are increased. In the cotton carding process, cotton carding space is reasonably set, the cotton feeding plate and the licker-in are 15-inch yarns, the 5-point space between the cylinder and the cover plate is 8-inch yarns multiplied by 7-inch yarns multiplied by 8-inch yarns, the space between the licker-in and the small under screen inlet is 11mm, the space between the outlet is 2mm, and the dry weight ration of cotton carding is 18.5g/5 m;
in the drawing process, after two times of combination, 8 pieces of the drawing are combined together, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm multiplied by 14mm multiplied by 26mm, and the diameter of a bell mouth is 3.1 mm; combining 8 pieces of the two, wherein the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of a bell mouth is 3.4 mm;
in the roving process, the twist of the roving is 2.1 twist/10 cm, the gauge of a roller is 12mm multiplied by 26mm multiplied by 45mm, the drafting of a rear zone is 1.2 times, the gauge of a jaw is 9.2mm, the dry weight ration of the roving is 4.8 g/10 m, the mechanical drafting is 7.19 times, and the spindle speed is 550 r/min;
in the spinning process, the twist number is 84 twist/10 cm, the twist direction is S twist, the model of a ring is PG1-4254, and the model of a used steel wire ring is W32138 #; the mechanical draft multiple is 34 times, and the roller gauge is 17mm multiplied by 38 mm; the draft multiple of the rear zone is 1.4 times, the jaw gauge is 2.8mm, the diameter of the front roller is 27mm, and the rotating speed of the front roller is 195 r/min;
in the winding process, single yarn winding is produced on an automatic winder in japan village, neps N: 350% × 0.5cm, short and thick S: 200% × 2.1cm, length and thickness L: 50% × 32cm, detail T: -35% x 30 cm;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 80 twists/10 cm, and the twist direction is Z twists.
Example 4
The embodiment provides a polyester yarn, which is produced by the following method:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process; the specific strength of the polyester fiber is 6.1CN/dtex, the elongation at break is 21.8%, the linear density is 1.33dtex, and the length is 38 mm;
specifically, in the carding procedure, the polyester fiber is coiled on a cotton grabbing circular table, and the dry weight ration of the cotton coil is 375 g/m; the raw materials are fluffy, and static electricity and twisting winding are easily generated in the spinning process, so that neps are increased. The cotton carding process is characterized in that the cotton carding space is reasonably set, the cotton feeding plate and the licker-in are 14-inch yarns, the 5-point space between the cylinder and the cover plate is 8-inch yarns multiplied by 7-inch yarns multiplied by 8-inch yarns, the licker-in and the small under screen inlet are 10mm in space, the outlet space is 3mm, and the cotton carding dry weight ration is 18.4g/5 m;
in the drawing process, after two times of combination, 8 pieces of the drawing are combined together, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm multiplied by 14mm multiplied by 26mm, and the diameter of a bell mouth is 3 mm; combining 8 pieces of the two, wherein the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of a bell mouth is 3.3 mm;
in the roving process, the twist of the roving is 2.1 twist/10 cm, the gauge of a roller is 12mm multiplied by 26mm multiplied by 45mm, the drafting of a rear zone is 1.3 times, the gauge of a jaw is 9.3mm, the dry weight ration of the roving is 4.77 g/10 m, the mechanical drafting is 7.18 times, and the spindle speed is 550 r/min;
in the spinning process, the twist number is 85 twist/10 cm, the twist direction is S twist, the model of a ring is PG1-4254, and the model of a used steel wire ring is W32138 #; the mechanical draft multiple is 32 times, and the roller gauge is 17mm multiplied by 38 mm; the drafting multiple of the rear zone is 1.2 times, the jaw gauge is 2.7mm, the diameter of the front roller is 28mm, and the rotating speed of the front roller is 190 r/min;
in the winding process, single yarn winding is produced on an automatic winder in japan village, neps N: 350% × 0.5cm, short and thick S: 200% × 2.1cm, length and thickness L: 50% × 32cm, detail T: -35% x 30 cm;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 82 twists/10 cm, and the twist direction is Z twists.
Performance testing
The high-strength polyester yarn produced in example 1 was subjected to a test of correlation property according to a conventional method or national standard in the textile field, and the test results are shown in table 1. In the present invention, the yarn section of less than 50% of the average section is the fine yarn, and the yarn section of 50% or more of the thick yarn knuckles of the average section.
TABLE 1 results of the performance tests of the yarns produced in examples 1-4
As can be seen from Table 1, the single yarn and the polyester yarn obtained in each example have good strength and less details and slubs, particularly the polyester yarn has no details and slubs, and the number of neps of the polyester yarn is less and can be as low as 5 neps.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The production method of the polyester yarn is characterized by comprising the following steps:
taking polyester fiber as a raw material, and sequentially processing the polyester fiber by a carding process, a drawing process, a coarse sand process, a spinning process, a winding process and a two-for-one twisting process;
in the blowing process, the spacing between a cotton feeding plate and a licker-in is 14-15 inches, the spacing between a cylinder and a cover plate 5 points is 8 inches, 7 inches, 8 inches, the spacing between the licker-in and a small under screen inlet is 10-12mm, the spacing between an outlet is 2-3mm, and the dry weight ration of cotton carding is 18.2-18.5g/5 m;
in the spinning process, the twist number is 84-85 twist/10 cm, and the twist direction is S twist;
in the two-for-one twisting procedure, single yarn is twisted into a thread by 2 strands, the twist is 80-82 twist/10 cm, and the twisting direction is Z twist.
2. The method for producing polyester yarn according to claim 1, wherein the polyester fiber has a specific strength of 5.8 to 6.1CN/dtex, an elongation at break of 21.8 to 22.5%, a linear density of 1.33 to 1.5dtex, and a length of 38 to 40 mm.
3. The method for producing polyester yarn according to claim 1, wherein in the roving process, the roving twist is 2.1-2.2 twists/10 cm.
4. The method for producing polyester yarn according to claim 3, wherein in the roving process, a roller gauge of 12mm x 26mm x 45mm is used, and the back draft is 1.2 to 1.3 times.
5. The method for producing polyester yarn according to claim 4, wherein in the roving process, the nip gauge is 9-9.5mm, the dry basis weight of the roving is 4.73-4.8 g/10 m, and the mechanical draft is 7.18-7.2 times.
6. The method for producing polyester yarn as claimed in claim 4, wherein the roving process has a spindle speed of 550-560 r/min.
7. The method for producing polyester yarn according to claim 1, wherein the mechanical draft is 32 to 34 times and the roller gauge is 17mm x 38mm in the spinning step.
8. The method for producing polyester yarn as claimed in claim 7, wherein in the spinning process, the draft multiple of the back region is 1.2-1.4 times, the nip gauge is 2.5-2.8mm, the diameter of the front roller is 27-28mm, and the rotation speed of the front roller is 190-.
9. The method for producing the polyester yarn according to claim 1, wherein in the drawing process, 8 yarns are combined after two times of combination, the dry weight ration is 17.2g/5 m, the roller gauge is 10mm x 14mm x 26mm, and the diameter of the bell mouth is 3-3.2 mm; combining two 8 groups, the dry weight ration is 17g/5 m, the roller gauge is 12mm multiplied by 20mm, and the diameter of the bell mouth is 3.2-3.4 mm.
10. A polyester yarn characterized by being produced by the production method according to any one of claims 1 to 9.
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| CN202111301889.3A CN113913986A (en) | 2021-11-04 | 2021-11-04 | Polyester yarn and production method thereof |
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| CN107630274A (en) * | 2017-09-25 | 2018-01-26 | 滁州安兴环保彩纤有限公司 | A kind of production technology of the black sewing thread of high intensity |
| CN109837628A (en) * | 2019-02-25 | 2019-06-04 | 晋州市金阳纺织品有限公司 | A kind of manufacture craft of novel spun polyester thread |
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2021
- 2021-11-04 CN CN202111301889.3A patent/CN113913986A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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