CN116219599A - Core-spun yarn, double-core-spun yarn using same and manufacturing process - Google Patents

Core-spun yarn, double-core-spun yarn using same and manufacturing process Download PDF

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Publication number
CN116219599A
CN116219599A CN202310062192.8A CN202310062192A CN116219599A CN 116219599 A CN116219599 A CN 116219599A CN 202310062192 A CN202310062192 A CN 202310062192A CN 116219599 A CN116219599 A CN 116219599A
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China
Prior art keywords
core
yarn
sheath
yarns
spun yarn
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CN202310062192.8A
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Chinese (zh)
Inventor
张尚健
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Zhuji Weifu Trading Co ltd
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Zhuji Weifu Trading Co ltd
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Priority to CN202310062192.8A priority Critical patent/CN116219599A/en
Publication of CN116219599A publication Critical patent/CN116219599A/en
Pending legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • 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
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/02—Cotton
    • 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
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention relates to core spun yarn, belongs to the technical field of spinning, and solves the problems of poor color consistency of the core spun yarn and low connection strength of sheath yarn in the prior art. The core-spun yarn comprises core yarn made of chemical fiber filaments and sheath yarn coated on the outer side of the core yarn, wherein the chemical fiber filaments are colored filaments, and the color of the sheath yarn is consistent with that of the colored filaments after the dyeing. The core yarn is in a stretching state during winding, the sheath yarn is wound on the outer side of the chemical fiber filament, and after winding is completed, the chemical fiber filament rebounds, and the inner side of the sheath yarn is tightly covered on the outer side of the chemical fiber filament. According to the invention, the core yarn is set as the color yarn, and the sheath yarn is coated after being dyed, so that the color consistency of the core yarn and the sheath yarn is high, and the core yarn does not need to be dyed again; and the core yarn is in a stretching state when being coated, and the core yarn rebounds after the sheath yarn is wound, so that the sheath yarn has high proportion, the connection strength of the sheath yarn and the core yarn is high, and the sheath yarn is effectively prevented from falling off.

Description

Core-spun yarn, double-core-spun yarn using same and manufacturing process
Technical Field
The invention belongs to the technical field of textile, and relates to core spun yarn.
Background
The core-spun yarn is also called composite yarn or cladding yarn, and is a novel yarn formed by combining two or more fibers. The initial core spun yarn is staple fiber and staple fiber core spun yarn developed with cotton fiber as the sheath and polyester staple fiber yarn as the core. The core spun yarn is spun by twisting short fibers such as cotton, wool, viscose and the like outside the core spun yarn by taking synthetic fiber filaments with good strength and elasticity as core filaments. The core spun yarn has the excellent properties of both filament core yarn and sheath staple fiber.
In the current use process of the core spun yarn, the outer wrapping fiber is wound on the outer side of the core yarn, and the outer wrapping fiber is a short fiber, so that the outer wrapping fiber is easy to fall off in the use process to cause the defects of fabric unhairing, pilling and the like; the core-spun yarn is dyed due to the dyeing and finishing requirement, and the outer-wrapped fiber of the core-spun yarn can fall off in the dyeing and finishing process; and the core yarn is different from the outer-wrapping fiber material, dyeing and finishing parameters are inconsistent, so that the color consistency of the core yarn is poor, and the color inconsistency of the core yarn and the outer-wrapping fiber affects the beautiful appearance of the fabric. In view of the above, it is desirable to provide a core spun yarn with good color consistency and high strength of the outer spun fiber.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a core-spun yarn with high color consistency.
The aim of the invention can be achieved by the following technical scheme: the core spun yarn comprises core yarn made of chemical fiber filaments and sheath yarn coated on the outer side of the core yarn, and is characterized in that the chemical fiber filaments are color filaments, and the color of the sheath yarn is consistent with that of the color filaments after dyeing.
The color yarn is prepared by adding color master batch into chemical fiber filament raw materials, and forming colored filaments after the chemical fiber filaments are extruded, so that dyeing is not needed; the sheath yarn is dyed natural short fiber, such as cotton fiber, and the natural short fiber has specific functionality, such as excellent water absorption, hygroscopicity, heat resistance, warmth retention property, softness and the like; therefore, the chemical fiber filaments are wrapped with the natural short fibers, so that the functionality of the natural short fibers can be realized, and the advantages of uniform evenness, high strength, good elongation, good elasticity and the like of the chemical fiber filaments can be reserved.
The dyed natural short fibers are wrapped outside the color yarns, and if the color yarns are consistent with the colors of the natural short fibers, the color consistency of the wrapped core-spun yarns is good and the attractiveness is high. If the color of the color yarn is inconsistent with that of the natural staple fiber, different appearance effects such as color cloud yarn, multicolor yarn and the like can be achieved.
In the core-spun yarn, the chemical fiber filaments are textured filaments; the textured yarn is a DTY yarn or an FDY yarn; the fineness of the chemical fiber filaments is 15d-100d. The chemical fiber filaments have certain elasticity after being elasticized, so that the core yarn is conveniently coated after being drafted during subsequent coating, the elasticity of the core-spun yarn after forming a fabric is ensured, the embedding strength of the sheath yarn coated in the core yarn is improved, and the sheath yarn is prevented from falling off.
In the core-spun yarn, the core yarn is in a stretched state during winding, the sheath yarn is wound on the outer side of the chemical fiber filament, the chemical fiber filament rebounds after winding is completed, and the inner side of the sheath yarn is tightly coated on the outer side of the chemical fiber filament. By stretching the core yarn and winding the sheath yarn, the proportion of the sheath yarn can be increased, and the bonding strength of the sheath yarn and the core yarn can be improved.
In the core-spun yarn, the sheath yarn is cotton fiber; the sheath yarn is 2-4 strands and is wound on the outer side of the core yarn in a crossing way. The cotton fiber has the advantage of good sweat guiding and moisture removing effects, and the cotton fiber is a plant short fiber, so that the cotton fiber has poor strength, inelastic property and poor weaving compatibility, and the cotton fiber is used as a sheath yarn, so that the advantages of the cotton fiber can be effectively reserved, the disadvantages of the cotton fiber as the plant short fiber can be avoided, and the chemical fiber long silk is uniform in dryness and high in strength; controllable elastic twist, good weaving compatibility and the like.
In the core-spun yarn, the chemical fiber filaments adopt a hollow structure, and the hollow part of the chemical fiber filament interface adopts a cross shape, a trilobal shape, a Y shape, a straight shape, a flat shape and the like. Different functions of the chemical fiber filaments, such as a triangular section filament and a trilobal section filament, can be realized by utilizing different hollow structures, and the chemical fiber filaments have sparkling luster. The synthetic fiber with flat, banded and dumbbell-shaped cross section has the hand feeling and luster of the fiber such as hemp, antelope wool, rabbit hair and the like. The polyester filaments with the pentalobal cross section have the luster similar to real silk and good pilling resistance, hand feeling and coverage. The polygonal section yarn has strong covering power and soft hand feeling besides the flashing property, and is mostly used for manufacturing deformed yarn to manufacture knitted fabrics and socks, and the short fiber is used for blending to manufacture various wool-like fabrics and blanket products. The luster of the rectangular section silk is soft and is close to that of silk and animal hair, and the blended product of the short fiber and the cotton fiber has a woolen style, and the fabric with unique luster can be obtained by blending with wool. And the special-shaped fiber has stronger rigidity, improved rebound resilience and coverage and slightly reduced strength. In addition, the profiled fiber has larger surface area, enhanced water and steam transmission capability, high drying speed and good dyeing property. The special-shaped fiber also has good fluffiness, the fabric has plump hand feeling and strong warmth retention, and the air permeability is good due to the increase of pores, and the fluffiness and the air permeability are improved along with the increase of the section irregularity.
In the core-spun yarn, the chemical fiber filaments are polyester filaments or nylon filaments.
Another object of the present invention is to provide a process for manufacturing a core spun yarn, comprising the steps of:
s1, selecting core yarns for drawing, and controlling the drawing multiplying power of the core yarns through a tension adjusting device;
s2, selecting 2 strands of sheath yarns, conveying the sheath yarns to the outer side of the core yarns through a front roller jaw, wherein the two conveying openings of the front roller jaw are at a certain distance, and the two conveying openings are gathered together at the merging position of the sheath yarns, so that the sheath yarns have a small amount of twist after passing through the front roller, and the sheath yarns are mutually twisted under the action of the twist after being coated on the outer side of the core yarns to form a spiral structure to be coated on the outer side of the core yarns;
s3, winding the wrapped core-spun yarn on a bobbin.
In the above process for manufacturing a core yarn, the color of the color yarn selected in the step S1 is the same as the color of the sheath yarn selected in the step S2.
The invention also aims to provide a double-core-spun yarn realized by the core-spun yarn, which comprises a first core-spun yarn and a second core-spun yarn, wherein the first core-spun yarn and the second core-spun yarn are spirally twisted. The double-core-spun yarn formed by spiral twisting of the two core-spun yarns has better fuzzing and pilling resistant effect and is not easy to take off the sheath.
Another object of the present invention is to provide a process for manufacturing a double-core spun yarn, comprising the steps of:
s1, respectively manufacturing two paths of core-spun yarns;
wherein the manufacturing process of the core spun yarn comprises the following steps:
s1.1, selecting core yarn for drawing, and controlling the drawing multiplying power by a tension adjusting device;
s1.2, selecting 2 strands of sheath yarns, conveying the sheath yarns to the outer side of the core yarns through a front roller jaw, wherein the two conveying openings of the front roller jaw have a certain distance, and the two conveying openings are gathered together at the merging position of the sheath yarns, so that the sheath yarns have a small amount of twist after passing through the front roller, and the sheath yarns are mutually twisted under the effect of the twist after being coated on the outer side of the core yarns to form a spiral structure to be coated on the outer side of the core yarns;
s2, performing spiral cross twisting on the two paths of core-spun yarns to form double-core-spun yarns;
s3, winding the coated double-core-spun yarn on a bobbin.
According to the invention, the core yarn is set as the color yarn, and the sheath yarn is coated after being dyed, so that the color consistency of the core yarn and the sheath yarn is high, and the core yarn does not need to be dyed again; the core yarn is in a stretching state when being coated, and the core yarn rebounds after the sheath yarn is wound, so that the sheath yarn has high proportion, the connection strength of the sheath yarn and the core yarn is high, and the sheath yarn is effectively prevented from falling off; and the double-core-spun yarn can be formed after the core-spun yarn is spirally twisted, so that the fuzzing and pilling resistant effect is further improved, and the sheath yarn is not easy to take off the sheath.
Drawings
FIG. 1 is a schematic view of the structure of a core spun yarn in example 1 provided by the present invention;
FIG. 2 is a schematic process flow diagram of the core spun yarn of example 1 provided by the present invention;
FIG. 3 is a schematic structural view of the double-core yarn of example 2 according to the present invention;
fig. 4 is a schematic process flow of the double-core yarn of example 2 provided by the present invention.
In the figure, 1, core yarn; 2. sheath yarn; 3. a first core spun yarn; 4. a second core spun yarn; 5. a tension adjusting device; 6. front roller jaw; 7. a twisting device; 8. double-core spun yarn.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1, the embodiment provides a core-spun yarn, which comprises a core yarn 1 made of polyester filaments and a sheath yarn 2 coated on the outer side of the core yarn 1, wherein the polyester filaments are color filaments, and the color of the sheath yarn 2 is consistent with that of the color filaments after dyeing.
The color yarn is prepared by adding color master batch into polyester filament raw material, and forming filaments with color after the polyester filament is extruded, without dyeing; the sheath yarn 2 is dyed natural staple fibers such as cotton fibers, and the natural staple fibers have specific functionalities such as excellent water absorption, hygroscopicity, heat resistance, warmth retention, softness and the like; therefore, the natural short fiber is wrapped outside the polyester filament, so that the functionality of the natural short fiber can be realized, and the advantages of uniform evenness, high strength, good elongation, good elasticity and the like of the polyester filament can be reserved.
The dyed natural short fibers are wrapped outside the color yarns, and if the color yarns are consistent with the colors of the natural short fibers, the color consistency of the wrapped core-spun yarns is good and the attractiveness is high. If the color of the color yarn is inconsistent with that of the natural staple fiber, different appearance effects such as color cloud yarn, multicolor yarn and the like can be achieved. In this embodiment, the color filaments are the same as the natural staple fibers. The sheath yarn 2 is cotton fiber; the sheath yarn 2 is 2 strands and is wound on the outer side of the core yarn 1 in a crossing way. The cotton fiber has the advantage of good sweat guiding and moisture removing effects, and the cotton fiber is a plant short fiber, so that the cotton fiber has poor strength, inelastic property and poor weaving compatibility, and the cotton fiber is used as the sheath yarn 2, so that the advantages of the cotton fiber can be effectively reserved, the disadvantages of the cotton fiber as the plant short fiber can be avoided, and the polyester long yarn is uniform in dryness and high in strength; controllable elastic twist, good weaving compatibility and the like. The core-spun yarn is applied to sports clothes, and has the effect of improving the perspiration and moisture absorption performance of clothes fabric by utilizing the natural characteristics of cotton fibers, and the moisture absorption and perspiration performance of a finished product after weaving is effectively improved due to the fact that the proportion of the sheath yarn 2 to the whole yarn is improved, and the advantages of filaments in the core yarn 1 are reserved.
Specifically, the polyester filaments are textured filaments; the textured yarn is a DTY yarn or an FDY yarn; the fineness of the polyester filament yarn is 50d. The polyester filament yarn has certain elasticity after being elasticized, so that the core yarn 1 is conveniently coated after being drafted during subsequent coating, the elasticity of the core-spun yarn after forming a fabric is ensured, the embedding strength of the sheath yarn 2 coated in the core yarn 1 is improved, and the sheath yarn 2 is prevented from falling off. The core yarn 1 is in a stretching state during winding, the sheath yarn 2 is wound on the outer side of the polyester filament yarn, when the winding is completed, the polyester filament yarn rebounds, and the inner side of the sheath yarn 2 is tightly coated on the outer side of the polyester filament yarn. By stretching the core yarn 1 and winding the sheath yarn 2, the ratio of the sheath yarn 2 can be increased, and the bonding strength between the sheath yarn 2 and the core yarn 1 can be improved.
In this embodiment, the polyester filament adopts a hollow structure, and the hollow part of the interface of the polyester filament adopts a cross shape, a trilobal shape, a Y shape, a straight shape, a flat shape and the like. Different functions of the polyester filament yarn can be realized by utilizing different hollow structures, such as the triangular section yarn and the trilobal section yarn have sparkling luster. The synthetic fiber with flat, banded and dumbbell-shaped cross section has the hand feeling and luster of the fiber such as hemp, antelope wool, rabbit hair and the like. The polyester filaments with the pentalobal cross section have the luster similar to real silk and good pilling resistance, hand feeling and coverage. The polygonal section yarn has strong covering power and soft hand feeling besides the flashing property, and is mostly used for manufacturing deformed yarn to manufacture knitted fabrics and socks, and the short fiber is used for blending to manufacture various wool-like fabrics and blanket products. The luster of the rectangular section silk is soft and is close to that of silk and animal hair, and the blended product of the short fiber and the cotton fiber has a woolen style, and the fabric with unique luster can be obtained by blending with wool. And the special-shaped fiber has stronger rigidity, improved rebound resilience and coverage and slightly reduced strength. In addition, the profiled fiber has larger surface area, enhanced water and steam transmission capability, high drying speed and good dyeing property. The special-shaped fiber also has good fluffiness, the fabric has plump hand feeling and strong warmth retention, and the air permeability is good due to the increase of pores, and the fluffiness and the air permeability are improved along with the increase of the section irregularity.
As shown in fig. 2, the manufacturing process of the core spun yarn provided in this embodiment includes the following steps:
s1, selecting a core yarn 1 for traction, and controlling the traction multiplying power of the core yarn through a tension adjusting device 5;
s2, selecting 2 strands of sheath yarns 2, conveying the sheath yarns to the outer side of the core yarn 1 through a front roller jaw 6, wherein the two conveying openings of the front roller jaw 6 are at a certain distance, and the sheath yarns 2 are combined and gathered together, so that the sheath yarns 2 have a small amount of twist after passing through the front roller, and the sheath yarns 2 are mutually twisted under the effect of the twist after being coated on the outer side of the core yarn 1 to form a spiral structure to be coated on the outer side of the core yarn 1;
s3, winding the wrapped core-spun yarn on a bobbin.
The tension adjusting device 5 usually adopts two conveying rollers with different rotation speeds, and adjusts the feeding drafting ratio of the core yarn 1 by adjusting the rotation speed difference of the conveying rollers. According to the invention, the core yarn 1 is set as the color yarn, and the sheath yarn 2 is coated after being dyed, so that the color consistency of the core yarn 1 and the sheath yarn 2 is high, and the core-spun yarn is not required to be dyed again; and the core yarn 1 is in a stretching state during cladding, and the core yarn 1 rebounds after the sheath yarn 2 is wound, so that the sheath yarn 2 has high ratio, the connection strength between the sheath yarn 2 and the core yarn 1 is high, and the sheath yarn 2 is effectively prevented from falling off.
Example 2
As shown in fig. 3, this embodiment provides a double core-spun yarn 81 implemented by using the core-spun yarn of embodiment 1, which includes a first core-spun yarn 3 and a second core-spun yarn 4, and the first core-spun yarn 3 and the second core-spun yarn 4 are helically twisted by a twisting device 7. The double-core-spun yarn 81 formed by spiral twisting of two core-spun yarns has better fuzzing and pilling resistant effect and is not easy to unhook.
As shown in fig. 4, the manufacturing process of the double-core-spun yarn provided in this embodiment includes the following steps:
s1, respectively manufacturing two paths of core-spun yarns;
wherein the manufacturing process of the core spun yarn comprises the following steps:
s1.1, selecting core yarn 1 for drawing, and controlling the drawing multiplying power by a tension adjusting device 5;
s1.2, selecting 2 strands of sheath yarns 2, conveying the sheath yarns to the outer side of the core yarn 1 through a front roller jaw 6, wherein the two conveying openings of the front roller jaw 6 are at a certain distance, and the sheath yarns 2 are combined and gathered together, so that the sheath yarns 2 have a small amount of twist after passing through the front roller, and the sheath yarns 2 are mutually twisted under the effect of the twist after being coated on the outer side of the core yarn 1 to form a spiral structure to be coated on the outer side of the core yarn 1;
s2, helically twisting the two paths of core-spun yarns through a twisting device 7 to form double-core-spun yarns 81;
s3, winding the double-core-spun yarn 81 after coating on a bobbin.
By helically twisting the core-spun yarn, the double core-spun yarn 81 can be formed, and the fuzzing and pilling resistance effect is further improved, so that the sheath yarn 2 is not easy to be unshaped.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The core spun yarn comprises core yarn made of chemical fiber filaments and sheath yarn coated on the outer side of the core yarn, and is characterized in that the chemical fiber filaments are color filaments, and the color of the sheath yarn is consistent with that of the color filaments after dyeing.
2. The core spun yarn of claim 1 wherein: the chemical fiber filaments are textured filaments; the textured yarn is a DTY yarn or an FDY yarn; the fineness of the chemical fiber filaments is 15d-100d.
3. The core spun yarn of claim 1 wherein: the core yarn is in a stretching state during winding, the sheath yarn is wound on the outer side of the chemical fiber filament, and after winding is completed, the chemical fiber filament rebounds, and the inner side of the sheath yarn is tightly coated on the outer side of the chemical fiber filament.
4. The core spun yarn of claim 1 wherein: the sheath yarn is cotton fiber; the sheath yarn is 2-4 strands and is wound on the outer side of the core yarn in a crossing way.
5. The core spun yarn of claim 1 wherein: the chemical fiber filament adopts a hollow structure, and the hollow part of the chemical fiber filament interface adopts a cross shape, a trilobal shape, a Y shape, a straight shape, a flat shape and the like.
6. The core spun yarn of claim 1 wherein: the chemical fiber filaments are polyester filaments or nylon filaments.
7. The manufacturing process of the core spun yarn is characterized by comprising the following steps of:
s1, selecting core yarns for drawing, and controlling the drawing multiplying power of the core yarns through a tension adjusting device;
s2, selecting 2 strands of sheath yarns, conveying the sheath yarns to the outer side of the core yarns through a front roller jaw, wherein the two conveying openings of the front roller jaw are at a certain distance, and the two conveying openings are gathered together at the merging position of the sheath yarns, so that the sheath yarns have a small amount of twist after passing through the front roller, and the sheath yarns are mutually twisted under the action of the twist after being coated on the outer side of the core yarns to form a spiral structure to be coated on the outer side of the core yarns;
s3, winding the wrapped core-spun yarn on a bobbin.
8. The process for manufacturing a core-spun yarn of claim 7 wherein: the color of the color yarn selected in the step S1 is consistent with the color of the sheath yarn selected in the step S2.
9. A double-core spun yarn using the core spun yarn of claim 1, comprising a first core spun yarn and a second core spun yarn, the first core spun yarn and the second core spun yarn being helically twisted.
10. The manufacturing process of the double-core-spun yarn is characterized by comprising the following steps of:
s1, respectively manufacturing two paths of core-spun yarns;
wherein the manufacturing process of the core spun yarn comprises the following steps:
s1.1, selecting core yarn for drawing, and controlling the drawing multiplying power by a tension adjusting device;
s1.2, selecting 2 strands of sheath yarns, conveying the sheath yarns to the outer side of the core yarns through a front roller jaw, wherein the two conveying openings of the front roller jaw have a certain distance, and the two conveying openings are gathered together at the merging position of the sheath yarns, so that the sheath yarns have a small amount of twist after passing through the front roller, and the sheath yarns are mutually twisted under the effect of the twist after being coated on the outer side of the core yarns to form a spiral structure to be coated on the outer side of the core yarns;
s2, performing spiral cross twisting on the two paths of core-spun yarns to form double-core-spun yarns;
s3, winding the coated double-core-spun yarn on a bobbin.
CN202310062192.8A 2023-01-17 2023-01-17 Core-spun yarn, double-core-spun yarn using same and manufacturing process Pending CN116219599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310062192.8A CN116219599A (en) 2023-01-17 2023-01-17 Core-spun yarn, double-core-spun yarn using same and manufacturing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310062192.8A CN116219599A (en) 2023-01-17 2023-01-17 Core-spun yarn, double-core-spun yarn using same and manufacturing process

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CN116219599A true CN116219599A (en) 2023-06-06

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