CN113481638A - Preparation method of nylon wool-like yarn with crystal fine glittering luster - Google Patents
Preparation method of nylon wool-like yarn with crystal fine glittering luster Download PDFInfo
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- CN113481638A CN113481638A CN202110756543.6A CN202110756543A CN113481638A CN 113481638 A CN113481638 A CN 113481638A CN 202110756543 A CN202110756543 A CN 202110756543A CN 113481638 A CN113481638 A CN 113481638A
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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
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
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- 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
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- 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
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
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- 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
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
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- 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
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- 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- 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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
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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
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
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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
- 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
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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
- D10B2401/00—Physical properties
- D10B2401/20—Physical properties optical
Abstract
The invention discloses a preparation method of chinlon wool-like yarn with crystal fine flashing luster, which comprises the following steps that (1) dried raw material PA6 slices are melted by a screw extruder and accurately metered by a metering pump, and then enter a spinning assembly to be sprayed out of melt fine flow through a linear spinneret orifice of a spinneret plate at a set pressure, and the melt fine flow forms curled primary fiber after being cooled by side air blowing; (2) oiling the curled nascent fiber by an oiling nozzle, sequentially passing the filament bundle through a pre-interlacer, a first godet GR1, a second godet GR2, a network nozzle of a main interlacer and a third godet GR3, and finally winding and forming to obtain a nylon FDY curled yarn; (3) and (3) processing the nylon FDY crimped yarn by a crochet machine to obtain the nylon wool-like yarn with crystal fine glittering luster. The product of the invention has the luster, touch and heat retention of real hair and real fur, and simultaneously keeps the performances of wear resistance, weather resistance, easy management and the like of chemical fiber.
Description
Technical Field
The invention relates to the technical field of chemical fiber production, in particular to a preparation method of nylon wool-like yarn with crystal fine glittering luster.
Background
With the resurgence of European economy, people are pursuing luxurious life, and the demand for fur clothes is increased day by day on clothes, so that some wild animals are endangered to be extinct, and the fur resources of the animals are increasingly deficient. Some animal protection organizations and the related public have a strong opposition not only to the killing of wild animals, but also to the wearing of artificially-raised animal fur. The artificial bionic fur is used for replacing animal real fur, which is the development trend of ecological environmental protection at present. The structure and the characteristics of the imitated natural fiber are also important directions for the optimization and the product development of chemical fiber products.
In this context, researchers in the industry began to look at the development of simulated fur products, and the protection of animals began with clothing. The research and development of the simulated fur fabric for replacing real fur is a great trend of the current market development. At present, the development of the nylon wool-like yarn has more technical difficulties, and a patent CN108728973A discloses a production method of the wool-like nylon fiber, wherein nylon 6POY yarn is taken as raw yarn, and is subjected to stretching and deformation treatment, and is plied with nylon 66POY yarn which is not subjected to stretching and heating at a network nozzle to form plied yarn until the plied yarn is wound and formed. The nylon wool-like yarn processed by the method has poor wool-like effect, does not have crystal fine and flashing luster, and cannot reflect the luster of natural fur.
Disclosure of Invention
The invention aims to provide a preparation method of chinlon wool-like yarn with crystal fine glittering luster, which is simple and feasible and has low cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of nylon wool-like yarn with crystal fine glittering luster comprises the following steps:
(1) feeding the dried raw material PA6 slices into a feed bin under the protection of nitrogen, melting the raw material PA6 slices by a screw extruder, accurately metering the melted raw material by a metering pump, feeding the raw material PA6 slices into a spinning assembly, spraying melt trickle through a linear spinneret orifice of a spinneret plate at a set pressure, and cooling the melt trickle by side blowing to form curly primary fibers;
(2) oiling the curled nascent fiber by an oiling nozzle, sequentially passing the filament bundle through a pre-interlacer, a first godet GR1, a second godet GR2, a network nozzle of a main interlacer and a third godet GR3, and finally winding and forming to obtain a nylon FDY curled yarn;
(3) and (3) processing the nylon FDY crimped yarn by a crochet machine to form crimped terry on the nylon FDY crimped yarn, thus obtaining the nylon wool-like yarn with crystal fine glittering luster.
The invention adopts a specific spinneret plate structure and combines a special spinning process, so that the processed tows have a curling effect, the gloss reflection degree of the fibers is increased, and the visual effect of crystal-like fine flashing gloss is realized. The crimped yarn is further processed by a crochet machine, and crimped looped piles are formed on the crimped yarn to realize a wool-like effect, and meanwhile, the gloss reflection degree of the fiber can be further improved, and the visual effect of crystal-like fine glittering is improved.
Preferably, in the step (1), the linear spinneret orifices are uniformly distributed on the spinneret plate in a circular shape, the number of the linear spinneret orifices is 5-12, and the length-diameter ratio of the linear spinneret orifices is 17-19: 1. More preferably, the number of linear orifices is between 8 and 10.
The invention adopts a specific spinneret plate structure, can change the fiber form and increase the specific surface area of the fiber. Only one circle of spinneret holes are uniformly distributed in a circular shape, so that the formed fibers are thick, the spinneret holes are in a straight shape and have a high length-diameter ratio of 17-19:1, and the fibers are uniformly distributed and distributed in the circular shape and are matched with the number of the spinneret holes, so that the fibers are curled, have a plurality of curling nodes, can reflect gloss from different directions, realize a visual effect of fine glittering gloss like crystals, and meanwhile, the fibers have soft hand feeling and elasticity.
In the prior art, some chinlon crystal yarns exist, and the fibers of the crystal yarns are very fine, so that the crystal-like effect is realized in a light-transmitting mode. The fiber of the invention is thicker and is not transparent, and the effect of fine and flashing crystal is formed by reflecting light, which is completely different from the chinlon crystal yarn in the prior art.
Preferably, in the step (1), the fineness of the primary fiber is 40 to 50D.
Preferably, in the step (1), the melting temperature of the melt is controlled to be between 252 ℃ and 257 ℃; the pressure set by the spinning assembly is 11-15 MPa.
Preferably, in the step (1), the blowing direction is parallel to the length direction of the linear spinneret orifices, the wind speed is 0.38-0.55m/s, the wind temperature is 15-18 ℃, and the humidity is 80-95%.
Preferably, in step (2), the oiling rate of the nascent fiber is 1.6-1.8%.
Preferably, in the step (2), the network pressure of the main network device is controlled to be 0.07-0.08Mpa, and the aperture of the network nozzle is 1.3-1.4 mm.
Preferably, in the step (2), the speed of the first godet roller GR1 is 3100-3700 m/min; the speed of the second godet roller GR2 is 4300-4380m/min, and the temperature is 150-160 ℃; the speed of the third godet GR3 is 4300-.
Preferably, in step (3), the length of the curled looped pile is controlled to be 5mm or less.
Preferably, in the step (3), the crochet machine treatment is specifically as follows: the nylon FDY crimped yarn is used as weft yarn and interweaved between two groups of warp yarns back and forth on a crochet machine, then the weft yarn between the warp yarns is cut off by a blade in the middle, and the weft yarn is crimped on the warp yarns to form crimped looped piles. The fiber has a wool curly appearance after being woven by a crochet machine, and the finished cloth has crystal-like fine flashing luster.
The invention has the beneficial effects that:
1. the fiber and the formed fabric have soft hand feeling and elasticity, and the product is not only similar to real fur in appearance and hand feeling, but also has crystal-like fine flashing luster in visual luster, is close to the real fur, has good wool-like effect and realizes simulation effect.
2. The product has the luster, touch and heat preservation performance of real wool and real fur, and simultaneously keeps the performances of wear resistance, weather resistance, easy management and the like of chemical fiber.
3. The preparation process is simple, the energy consumption is low, the after-finishing process of the real leather wool fabric is omitted, and the whole process from raw material source and processing to use and maintenance is more ecological and environment-friendly.
Drawings
Fig. 1 is a schematic diagram of a spinneret plate according to the present invention.
FIG. 2 shows a chinlon FDY crimped yarn produced by the invention.
FIG. 3 shows a nylon wool-like yarn formed by processing the nylon FDY crimped yarn by a crochet machine.
FIG. 4 is a cloth woven by the nylon wool-like yarn of the invention.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified.
Example 1:
a preparation method of nylon wool-like yarn with crystal fine glittering luster comprises the following steps:
(1) feeding dried raw material PA6 slices (the water content is less than or equal to 50 ppm) into a feed bin under the protection of nitrogen, melting the raw material PA6 slices by a screw extruder, accurately metering the raw material PA6 slices by a metering pump, feeding the raw material PA6 slices into a spinning assembly, spraying melt trickle by a linear spinneret orifice of a spinneret plate at a set pressure of 11MPa, and cooling the melt trickle by side air blowing to form curly primary fibers.
The melting temperature of the melt is controlled between 252 ℃ and 257 ℃. The linear spinneret orifices 2 are uniformly distributed on the spinneret plate 1 in a circular shape, the number of the linear spinneret orifices is 8, and the length-diameter ratio of the linear spinneret orifices is 17:1 (see figure 1). The blowing direction is parallel to the length direction of the linear spinneret orifices, the wind speed is 0.38m/s, the wind temperature is 15 ℃, and the humidity is 80%. The spinneret plate is provided with a positioning pin 3, and the orientation of the positioning pin is consistent with the blowing direction.
(2) After the curled nascent fibers are oiled by an oil nozzle, the filament bundle sequentially passes through a pre-interlacer (the pressure is 0.035 Mpa, the aperture of a nozzle is 1.4 mm), a first godet GR1, a second godet GR2, a network nozzle of a main interlacer and a third godet GR3, and finally, the crimped nylon FDY filaments are obtained through winding and forming (see figure 2).
The oiling rate of the nascent fiber is 1.6 percent, and the speed of a first godet GR1 is 3100 m/min; the speed of the second godet roller GR2 is 4300m/min, and the temperature is 150 ℃; the speed of the third godet GR3 was 4300m/min, and the total draw ratio was controlled at 1.20. The network pressure of the main network device is controlled to be 0.07Mpa, and the aperture of the network nozzle is 1.4 mm. The winding speed is controlled to be 4300 m/min.
(3) The nylon FDY crimped yarn is processed by a crochet machine, a crimp-shaped looped pile is formed on the nylon FDY crimped yarn, and the length of the crimp-shaped looped pile is controlled to be less than 5mm, so that the nylon wool-like yarn with crystal fine glittering luster is obtained (see figure 3).
The crochet machine treatment specifically comprises the following steps: the nylon FDY crimped yarn is used as weft yarn and interweaved between two groups of warp yarns back and forth on a crochet machine, then the weft yarn between the warp yarns is cut off by a blade in the middle, and the weft yarn is crimped on the warp yarns to form crimped looped piles.
Example 2:
a preparation method of nylon wool-like yarn with crystal fine glittering luster comprises the following steps:
(1) feeding dried raw material PA6 slices (the water content is less than or equal to 50 ppm) into a feed bin under the protection of nitrogen, melting the raw material PA6 slices by a screw extruder, accurately metering the raw material PA6 slices by a metering pump, feeding the raw material PA6 slices into a spinning assembly, spraying melt trickle by a linear spinneret orifice of a spinneret plate at a set pressure of 13MPa, and cooling the melt trickle by side air blowing to form curly primary fibers.
The melting temperature of the melt is controlled between 252 ℃ and 257 ℃. The linear spinneret orifices 2 are uniformly distributed on the spinneret plate 1 in a circular shape, the number of the linear spinneret orifices is 8, and the length-diameter ratio of the linear spinneret orifices is 18:1 (see figure 1). The blowing direction is parallel to the length direction of the linear spinneret orifices, the wind speed is 0.5m/s, the wind temperature is 16 ℃, and the humidity is 90%. The spinneret plate is provided with a positioning pin 3, and the orientation of the positioning pin is consistent with the blowing direction.
(2) After the curled nascent fibers are oiled by an oil nozzle, the tows sequentially pass through a pre-interlacer (the aperture of a nozzle with the pressure of 0.038 Mpa is 1.35 mm), a first godet GR1, a second godet GR2, a network nozzle of a main interlacer and a third godet GR3, and finally are wound and formed to obtain the nylon FDY crimped yarn (see figure 2).
The oiling rate of the as-spun fiber is 1.7%, and the speed of a first godet GR1 is 3500 m/min; the speed of the second godet roller GR2 is 4350m/min, and the temperature is 155 ℃; the speed of the third godet GR3 was 4500m/min, the total draw ratio was controlled at 1.30. The network pressure of the main network device is controlled to be 0.075Mpa, and the aperture of the network nozzle is 1.35 mm. The winding speed was controlled at 4500 m/min.
(3) The nylon FDY crimped yarn is processed by a crochet machine, a crimp-shaped looped pile is formed on the nylon FDY crimped yarn, and the length of the crimp-shaped looped pile is controlled to be less than 5mm, so that the nylon wool-like yarn with crystal fine glittering luster is obtained (see figure 3).
The crochet machine treatment specifically comprises the following steps: the nylon FDY crimped yarn is used as weft yarn and interweaved between two groups of warp yarns back and forth on a crochet machine, then the weft yarn between the warp yarns is cut off by a blade in the middle, and the weft yarn is crimped on the warp yarns to form crimped looped piles.
Example 3:
a preparation method of nylon wool-like yarn with crystal fine glittering luster comprises the following steps:
(1) feeding dried raw material PA6 slices (the water content is less than or equal to 50 ppm) into a feed bin under the protection of nitrogen, melting the raw material PA6 slices by a screw extruder, accurately metering the raw material PA6 slices by a metering pump, feeding the raw material PA6 slices into a spinning assembly, spraying melt trickle by a linear spinneret orifice of a spinneret plate at a set pressure of 15MPa, and cooling the melt trickle by side air blowing to form curly nascent fibers.
The melting temperature of the melt is controlled between 252 ℃ and 257 ℃. The linear spinneret orifices 2 are uniformly distributed on the spinneret plate 1 in a circular shape, the number of the linear spinneret orifices is 10, and the length-diameter ratio of the linear spinneret orifices is 19:1 (see figure 1). The blowing direction is parallel to the length direction of the linear spinneret orifices, the wind speed is 0.55m/s, the wind temperature is 18 ℃, and the humidity is 95%. The spinneret plate is provided with a positioning pin 3, and the orientation of the positioning pin is consistent with the blowing direction.
(2) After the curled nascent fibers are oiled by an oil nozzle, the tows sequentially pass through a pre-interlacer (the pressure is 0.04 Mpa, the aperture of a nozzle is 1.3 mm), a first godet GR1, a second godet GR2, a network nozzle of a main interlacer and a third godet GR3, and finally the crimped nylon FDY yarns are obtained through winding and forming (see figure 2).
The oiling rate of the as-spun fiber is 1.8 percent, and the speed of a first godet roller GR1 is 3700 m/min; the speed of the second godet roller GR2 is 4380m/min, and the temperature is 160 ℃; the speed of the third godet GR3 was 4600m/min, and the total draw ratio was controlled at 1.40. The network pressure of the main network device is controlled to be 0.08Mpa, and the aperture of the network nozzle is 1.3 mm. The winding speed is controlled between 4800 m/min.
(3) The nylon FDY crimped yarn is processed by a crochet machine, a crimp-shaped looped pile is formed on the nylon FDY crimped yarn, and the length of the crimp-shaped looped pile is controlled to be less than 5mm, so that the nylon wool-like yarn with crystal fine glittering luster is obtained (see figure 3).
The crochet machine treatment specifically comprises the following steps: the nylon FDY crimped yarn is used as weft yarn and interweaved between two groups of warp yarns back and forth on a crochet machine, then the weft yarn between the warp yarns is cut off by a blade in the middle, and the weft yarn is crimped on the warp yarns to form crimped looped piles.
The fineness of the primary fiber is 40-50D. The chinlon wool-like yarn with crystal fine glittering luster spun by the steps has the following properties: the breaking strength is more than or equal to 1.90CN/dtex, the elongation at break is more than or equal to 18.5 percent, the crimping rate is more than or equal to 5.3 percent, and the filament bundle is in a crimp shape. The fabric woven by the nylon wool-like yarn disclosed by the invention is shown in figure 4, has soft hand feeling and elasticity, is similar to real fur in appearance and hand feeling, has crystal-like fine flashing luster in visual luster, is close to real fur, and has a good wool-like effect.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. A preparation method of nylon wool-like yarn with crystal fine glittering luster is characterized by comprising the following steps:
(1) feeding the dried raw material PA6 slices into a feed bin under the protection of nitrogen, melting the raw material PA6 slices by a screw extruder, accurately metering the melted raw material by a metering pump, feeding the raw material PA6 slices into a spinning assembly, spraying melt trickle through a linear spinneret orifice of a spinneret plate at a set pressure, and cooling the melt trickle by side blowing to form curly primary fibers;
(2) oiling the curled nascent fiber by an oiling nozzle, sequentially passing the filament bundle through a pre-interlacer, a first godet GR1, a second godet GR2, a network nozzle of a main interlacer and a third godet GR3, and finally winding and forming to obtain a nylon FDY curled yarn;
(3) and (3) processing the nylon FDY crimped yarn by a crochet machine to form crimped terry on the nylon FDY crimped yarn, thus obtaining the nylon wool-like yarn with crystal fine glittering luster.
2. The preparation method of claim 1, wherein in the step (1), the linear spinneret orifices are uniformly distributed on the spinneret plate in a circular shape, the number of the linear spinneret orifices is 5-12, and the length-diameter ratio of the linear spinneret orifices is 17-19: 1.
3. The method according to claim 1, wherein in the step (1), the fineness of the primary fiber is 40 to 50D.
4. The method as claimed in claim 1, wherein in the step (1), the melting temperature of the melt is controlled to be between 252 ℃ and 257 ℃; the pressure set by the spinning assembly is 11-15 MPa.
5. The process according to claim 1, wherein in the step (1), the blowing direction is parallel to the length direction of the linear spinneret holes, the wind speed is 0.38-0.55m/s, the wind temperature is 15-18 ℃, and the humidity is 80-95%.
6. The method according to claim 1, wherein the oiling rate of the as-spun fiber in the step (2) is 1.6 to 1.8%.
7. The method according to claim 1, wherein in the step (2), the network pressure of the main network device is controlled to be 0.07-0.08Mpa, and the aperture of the network nozzle is 1.3-1.4 mm.
8. The preparation method according to claim 1, wherein in the step (2), the speed of the first godet GR1 is 3100-3700 m/min; the speed of the second godet roller GR2 is 4300-4380m/min, and the temperature is 150-160 ℃; the speed of the third godet GR3 is 4300-.
9. The production method according to claim 1, wherein in the step (3), the length of the curled looped pile is controlled to be 5mm or less.
10. The production method according to claim 1, wherein in the step (3), the crochet machine treatment is specifically: the nylon FDY crimped yarn is used as weft yarn and interweaved between two groups of warp yarns back and forth on a crochet machine, then the weft yarn between the warp yarns is cut off by a blade in the middle, and the weft yarn is crimped on the warp yarns to form crimped looped piles.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113862856A (en) * | 2021-11-05 | 2021-12-31 | 义乌华鼎锦纶股份有限公司 | Marten-imitated nylon yarn |
| CN114737268A (en) * | 2022-06-10 | 2022-07-12 | 浙江锦盛控股集团有限公司 | Production method and processing equipment of wool-like chinlon FDY (fully drawn yarn) rolled wool |
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| CN114737268A (en) * | 2022-06-10 | 2022-07-12 | 浙江锦盛控股集团有限公司 | Production method and processing equipment of wool-like chinlon FDY (fully drawn yarn) rolled wool |
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| CN113481638B (en) | 2023-01-24 |
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