阅读说明：本技术 一种高韧性涡流纺纱线及其生产方法 (High-toughness vortex spun yarn and production method thereof ) 是由 陈路 陈克勤 胡宁华 于 2020-07-04 设计创作，主要内容包括：本发明公开了一种高韧性涡流纺纱线,包括纱线本体,所述纱线本体由涡流混纺而成,所述纱线本体包括芯纱、第一包覆纤维层、混合纱层和第二包覆纤维层,所述芯纱包括涤纶纤维和亚麻纤维,所述第一包覆纤维层由中空涤纶纤维制成,所述混合纱层包括多根混合纱,多根所述混合纱螺旋包覆在所述第一包覆纤维层外,所述混合纱包括聚丙烯腈纤维、玻璃纤维和亚克力纤维,所述聚丙烯腈纤维、所述玻璃纤维和所述亚克力纤维交错捻合,所述第二包覆纤维层螺旋缠绕于所述混合纱层外,本发明还公开了一种高韧性涡流纺纱线的生产方法。本发明具备高韧性,在收缩或伸长过程中该高韧性涡流纺纱线不易断裂,使用寿命长,具有良好的仿棉效果,具有良好的综合性能。(The invention discloses high-toughness vortex spun yarn which comprises a yarn body, wherein the yarn body is formed by vortex blending, the yarn body comprises a core yarn, a first coating fiber layer, a mixed yarn layer and a second coating fiber layer, the core yarn comprises polyester fibers and flax fibers, the first coating fiber layer is made of hollow polyester fibers, the mixed yarn layer comprises a plurality of mixed yarns, the plurality of mixed yarns are spirally coated outside the first coating fiber layer, the mixed yarns comprise polyacrylonitrile fibers, glass fibers and acrylic fibers, the polyacrylonitrile fibers, the glass fibers and the acrylic fibers are staggered and twisted, and the second coating fiber layer is spirally wound outside the mixed yarn layer. The high-tenacity vortex spun yarn has high tenacity, is not easy to break in the contraction or extension process, has long service life, good cotton-like effect and good comprehensive performance.)

1. The high-tenacity vortex spun yarn is characterized by comprising a yarn body (100), wherein the yarn body (100) is formed by vortex blending;

the yarn body (100) comprises:

the core yarn (1) comprises polyester fibers (101) and flax fibers (102), the polyester fibers (101) are of a straight core structure, a plurality of flax fibers (102) are arranged, and the flax fibers (102) are wrapped outside the polyester fibers (101) in a staggered mode;

the first coating fiber layer (2), the first coating fiber layer (2) is spirally wound outside the core yarn (1), and the first coating fiber layer (2) is made of hollow polyester fibers;

the mixed yarn layer (3) comprises a plurality of mixed yarns (4), the plurality of mixed yarns (4) are spirally coated outside the first coating fiber layer (2), the mixed yarns (4) comprise polyacrylonitrile fibers (401), glass fibers (402) and acrylic fibers (403), and the polyacrylonitrile fibers (401), the glass fibers (402) and the acrylic fibers (403) are twisted in a staggered mode;

the second coated fiber layer (5), the second coated fiber layer (5) is spirally wound outside the mixed yarn layer (3), and the second coated fiber layer (5) is made of bamboo viscose fibers.

2. A high tenacity vortex spun yarn according to claim 1 wherein: the flax fibers (102) are flax filaments or flax staple fibers.

3. A high tenacity vortex spun yarn according to claim 1 wherein: the flax fibers (102) are arranged into an even number of groups and four groups.

4. A high tenacity vortex spun yarn according to claim 3 wherein: the four flax fibers (102) are interlaced and wrapped on the polyester fibers (101) in a structure that:

the first fibers are firstly intertwined with each other around the rear side of the polyester fiber (101) in the S twisting direction and the second fibers are intertwined with each other in the Z twisting direction to obtain a first intertwined point, then are intertwined with each other around the front side of the polyester fiber (101) to obtain a second intertwined point, then are intertwined with each other around the rear side of the polyester fiber (101) to obtain a third intertwined point, then the repeated wrapping of the polyester fiber (101) is realized according to the above cycle, the distance between two adjacent first fiber and second fiber intertwined points along the length direction of the fiber line is equal, the third fibers are intertwined with each other around the front side of the polyester fiber (101) in the S twisting direction and the fourth fibers in the Z twisting direction to obtain a fourth intertwined point, then are intertwined with each other around the rear side of the polyester fiber (101) to obtain a fifth intertwined point, and then are intertwined with each other around the front side of the polyester fiber (101), and obtaining a sixth interlacing point, and then repeatedly wrapping the polyester fiber (101) according to the circulation, wherein the distance between two adjacent third fibers and fourth fiber interlacing points along the length direction of the fiber line is equal, the distance between two adjacent third fibers and fourth fiber interlacing points along the length direction of the fiber line is equal to the distance between two adjacent first fibers and second fibers interlacing points along the length direction of the fiber line, and the distance between the fourth interlacing point and the first interlacing point along the length direction of the fiber line is equal to the distance between the fourth interlacing point and the second interlacing point.

5. A high tenacity vortex spun yarn according to claim 1 wherein: the hollow polyester fiber is of a single-hole structure, and the hollow polyester fiber is polyester staple fiber.

6. A high tenacity vortex spun yarn according to claim 1 wherein: the bamboo viscose fiber is bamboo viscose staple fiber, and the bamboo viscose fiber is colored spun fiber.

7. A method for producing a high tenacity vortex spun yarn according to claim 1 comprising the steps of:

s1, wrapping a plurality of flax fibers outside the polyester fibers in a staggered manner to form core yarns;

s2, taking core yarn as a core fiber filament and hollow polyester fiber as a wrapping fiber, spinning into a vortex spinning semi-finished roving through a vortex spinning process, wherein the total drafting multiplying power is controlled to be 60-90 times, the main drafting multiplying power is controlled to be 6-10 times, the air pressure of a nozzle is controlled to be 0.25-0.35MPa, and the air pressure led out by the nozzle is controlled to be 0.20-0.40 MPa;

s3, interlacing and twisting polyacrylonitrile fibers, glass fibers and acrylic fibers to form a plurality of mixed yarns;

s4, taking the vortex spun semi-finished roving as a core fiber filament, taking the mixed yarn as a wrapping fiber, and spinning into the vortex spun semi-finished spun yarn through a vortex spinning process, wherein the total drafting multiplying power is controlled to be 80-120 times, the main drafting multiplying power is controlled to be 12-18 times, the air pressure of a nozzle is controlled to be 0.45-0.55MPa, and the air pressure led out by the nozzle is controlled to be 0.25-0.45 MPa;

s5, taking the vortex spinning semi-finished coarse spun yarn as a core fiber filament, taking the bamboo viscose fiber as a wrapping fiber, and spinning into the high-tenacity vortex spun yarn through a vortex spinning process, wherein the total draft ratio is controlled to be 130 times of 100 and 130 times, the main draft ratio is controlled to be 16-24 times, the air pressure of a nozzle is controlled to be 0.6-0.7MPa, and the air pressure led out from the nozzle is controlled to be 0.25-0.45 MPa.

8. The method for producing a high tenacity vortex spun yarn according to claim 7, wherein: in the S5, the high-tenacity vortex spun yarn is wound on a hot roller through a guide roller, then is output by an output roller, and finally is wound to form a cone yarn.

Technical Field

The invention relates to the technical field of vortex spun yarns, in particular to high-toughness vortex spun yarns and a production method of the high-toughness vortex spun yarns.

Background

With the continuous progress of society, textile technology and textile equipment are continuously developed, and novel yarns are continuously appeared. Vortex spinning is a new technology in the existing spinning system, and is spinning equipment which is developed on the basis of air jet spinning and is suitable for spinning pure cotton. Compared with the traditional ring spinning: the method has the characteristics of short spinning flow, high production efficiency, online quality monitoring, high automation intelligent degree and the like, and also has the advantages of greatly reducing labor, reducing yarn hairiness and the like. Therefore, the vortex spun yarn is used for processing needle and cotton fabrics and has various excellent performances.

The prior vortex spun yarn has poor toughness, the high-toughness vortex spun yarn is easy to break in the contraction or extension process, and the high-toughness vortex spun yarn has poor comprehensive performance although having various excellent performances, so that the requirement of people can not be met.

Disclosure of Invention

The invention aims to provide high-toughness vortex spun yarn and a production method thereof, wherein the high-toughness vortex spun yarn has high toughness, is not easy to break in the contraction or extension process, has long service life, good cotton-like effect and good comprehensive performance, and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the high-tenacity vortex spun yarn comprises a yarn body, wherein the yarn body is formed by vortex blending;

the yarn body includes:

the core yarn comprises polyester fibers and flax fibers, the polyester fibers are of a straight core structure, the flax fibers are provided with a plurality of fibers, and the flax fibers are wrapped outside the polyester fibers in a staggered manner;

the first coating fiber layer is spirally wound outside the core yarn and is made of hollow polyester fibers;

the mixed yarn layer comprises a plurality of mixed yarns, the plurality of mixed yarns are spirally wrapped outside the first wrapping fiber layer, the mixed yarns comprise polyacrylonitrile fibers, glass fibers and acrylic fibers, and the polyacrylonitrile fibers, the glass fibers and the acrylic fibers are twisted in a staggered mode;

and the second coated fiber layer is spirally wound outside the mixed yarn layer and is made of bamboo viscose fibers.

Preferably, the flax fibers are flax filaments or flax staple fibers.

Preferably, the flax fibers are arranged into an even number and four.

Preferably, the structure of wrapping the polyester fibers by four flax fibers in a staggered manner is as follows:

first fibers are firstly intertwined with each other around the rear side of the polyester fibers in an S twisting direction and second fibers are intertwined with each other in a Z twisting direction to obtain first intertwining points, then the first fibers are intertwined with each other around the front side of the polyester fibers to obtain second intertwining points, then the second fibers are intertwined with each other around the rear side of the polyester fibers to obtain third intertwining points, then the polyester fibers are repeatedly intertwined according to the cycle, the distance between two adjacent first fibers and the second intertwining points along the length direction of the fiber lines is equal, the third fibers are intertwined with each other around the front side of the polyester fibers in an S twisting direction and fourth fibers in a Z twisting direction to obtain fourth intertwining points, then the fifth intertwining points are intertwined with each other around the rear side of the polyester fibers to obtain fifth intertwining points, then the sixth intertwining points are mutually intertwined with the front side of the polyester fibers to obtain sixth intertwining points, and then the polyester fibers are repeatedly intertwined according to the cycle, the distance between two adjacent third fibers and fourth fiber interlacing points along the length direction of the fiber line is equal to the distance between two adjacent first fibers and second fibers along the length direction of the fiber line, and the distance between the fourth interlacing point and the first interlacing point along the length direction of the fiber line is equal to the distance between the fourth interlacing point and the second interlacing point.

Preferably, the cotton and hemp fibers are cotton and hemp staple fibers.

Preferably, the hollow polyester fiber is in a single-hole structure, and the hollow polyester fiber is polyester staple fiber.

Preferably, the bamboo viscose fiber is bamboo viscose staple fiber, and the bamboo viscose fiber is colored spun fiber.

A production method of high-tenacity vortex spun yarn comprises the following steps:

s1, wrapping a plurality of flax fibers outside the polyester fibers in a staggered manner to form core yarns;

s2, taking core yarn as a core fiber filament and hollow polyester fiber as a wrapping fiber, spinning into a vortex spinning semi-finished roving through a vortex spinning process, wherein the total drafting multiplying power is controlled to be 60-90 times, the main drafting multiplying power is controlled to be 6-10 times, the air pressure of a nozzle is controlled to be 0.25-0.35MPa, and the air pressure led out by the nozzle is controlled to be 0.20-0.40 MPa;

s3, interlacing and twisting polyacrylonitrile fibers, glass fibers and acrylic fibers to form a plurality of mixed yarns;

s4, taking the vortex spun semi-finished roving as a core fiber filament, taking the mixed yarn as a wrapping fiber, and spinning into the vortex spun semi-finished spun yarn through a vortex spinning process, wherein the total drafting multiplying power is controlled to be 80-120 times, the main drafting multiplying power is controlled to be 12-18 times, the air pressure of a nozzle is controlled to be 0.45-0.55MPa, and the air pressure led out by the nozzle is controlled to be 0.25-0.45 MPa;

s5, taking the vortex spinning semi-finished coarse spun yarn as a core fiber filament, taking the bamboo viscose fiber as a wrapping fiber, and spinning into the high-tenacity vortex spun yarn through a vortex spinning process, wherein the total draft ratio is controlled to be 130 times of 100 and 130 times, the main draft ratio is controlled to be 16-24 times, the air pressure of a nozzle is controlled to be 0.6-0.7MPa, and the air pressure led out from the nozzle is controlled to be 0.25-0.45 MPa.

Preferably, in S5, the high tenacity vortex spun yarn is wound around a hot roll by a guide roller, then is delivered by a delivery roller, and finally is wound to form a cone yarn.

Compared with the prior art, the invention has the beneficial effects that:

the high-tenacity vortex spun yarn has high tenacity by adopting a plurality of flax fibers to wrap the polyester fibers in a staggered manner to form the core yarn, the high-tenacity vortex spun yarn is made by spirally wrapping the first wrapping fiber layer, the mixed yarn layer is made by spirally twisting polyacrylonitrile fibers, glass fibers and acrylic fibers, the tenacity of the high-tenacity vortex spun yarn is further increased, the high-tenacity vortex spun yarn is not easy to break in the contraction or extension process, the service life is long, meanwhile, the first wrapping fiber layer made by spirally wrapping hollow polyester fibers outside the core yarn and the second wrapping fiber layer made by spirally wrapping bamboo viscose fibers outside the mixed yarn layer can keep the high-tenacity vortex spun yarn to be stiff and smooth, have good texture, simultaneously can improve the moisture absorption performance of the high-tenacity vortex spun yarn, ensure that the yarn body feels soft, absorbs moisture and is breathable, the high-tenacity vortex spun yarn has good cotton-like effect and good comprehensive performance; the production method of the high-tenacity vortex spun yarn is simple, has high production efficiency, and can be used for large-scale yarn processing.

Drawings

Fig. 1 is a schematic structural view of a high tenacity vortex spun yarn of the present invention.

In the figure: 100. a yarn body; 1. a core yarn; 101. polyester fiber; 102. flax fibers; 2. a first coated fibrous layer; 3. a mixed yarn layer; 4. mixing the yarns; 401. polyacrylonitrile fibers; 402. glass fibers; 403. acrylic fiber; 5. a second coated fibrous layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.