CN111621887B - Multi-core-spun yarn structure for improving core-spun stability and manufacturing process thereof - Google Patents

Multi-core-spun yarn structure for improving core-spun stability and manufacturing process thereof Download PDF

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Publication number
CN111621887B
CN111621887B CN202010457029.8A CN202010457029A CN111621887B CN 111621887 B CN111621887 B CN 111621887B CN 202010457029 A CN202010457029 A CN 202010457029A CN 111621887 B CN111621887 B CN 111621887B
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core
yarn
buffer
length
stretching
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CN111621887A (en
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何英杰
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Changzhou Kexu Textile Co ltd
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Changzhou Kexu Textile Co ltd
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Priority to CN202010457029.8A priority Critical patent/CN111621887B/en
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Priority to JP2021537702A priority patent/JP7362149B2/en
Priority to PCT/CN2021/093760 priority patent/WO2021238677A1/en
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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
    • 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
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D02G3/12—Threads containing metallic filaments or strips
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/442—Cut or abrasion resistant yarns or 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • 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
    • D10B2101/00—Inorganic fibres
    • 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
    • D10B2101/00—Inorganic fibres
    • D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
    • D10B2101/06—Glass
    • 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
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres
    • D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
    • D10B2201/24—Viscose
    • 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
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • 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
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • 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
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • 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]
    • 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
    • D10B2401/16—Physical properties antistatic; conductive
    • 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
    • D10B2401/22—Physical properties protective against sunlight or UV radiation

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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 the technical field of multi-core spun yarns, in particular to a multi-core spun yarn structure for improving the stability of a spun yarn and a manufacturing process thereof. The multi-core-spun yarn comprises at least two core yarns and a wrapping yarn, wherein the wrapping yarn wraps the outer part of the core yarns, at least one core yarn adopts hard filaments, at least one core yarn adopts buffer core yarns with the elongation at break of less than 50% and the retraction elasticity of less than 30%, and the hard filaments and the buffer core yarns are mutually wound or arranged in parallel. The invention adopts the buffer core yarn meeting certain requirements to buffer and protect the hard filament, solves the problems that the hard filament does not have retractive performance or is easy to break after being stretched, and also controls the occurrence probability of the exposure problem of the core yarn.

Description

Multi-core-spun yarn structure for improving core-spun stability and manufacturing process thereof
Technical Field
The invention relates to the technical field of multi-core spun yarns, in particular to a multi-core spun yarn structure for improving the stability of a spun yarn and a manufacturing process thereof.
Background
The core spun yarn is a very important composite yarn, and has two components, one is core yarn and the other is short fiber covered by the core spun yarn, and the two components are manufactured into yarn with obvious core yarn structure through the core spun process, so that the characteristics of the core yarn and the covered fiber are brought into play, and the resultant yarn has the yarn performance of the combination of the core yarn and the covered fiber.
In the prior art, hard filaments such as single or multiple glass filaments/metal filaments/basalt filaments are often adopted as core yarns, for example, the utility model with the prior authorized bulletin number of CN206127534U discloses a multi-core covering yarn, two-for-one twisted yarn thereof, the covering yarn and gloves and fabrics woven by the same. The multi-core-spun yarn comprises a core layer and an outer cladding layer, wherein the core layer comprises two or more core yarns, the core yarns are hard core yarns with elongation at break of less than 50% measured by an ISO2062 method, and the core yarns adopt one or more of glass filaments, metal filaments or basalt filaments.
According to the technical scheme, the traditional core-spun structure of one core yarn is changed into the core-spun structure of a plurality of fine core yarns, wherein the core yarn adopts one or more of glass filaments, metal filaments or basalt filaments. These core yarn filaments fall generally into two categories, metallic-like filaments and mineral-like filaments. Metal filaments, such as steel wires, generally have no retractive elasticity after stretching. Mineral filaments such as basalt filaments are susceptible to breakage after stretching due to their relatively brittle nature. These core yarns, while having elongation properties, still do not have good retractability after elongation. The protective articles such as the glove sleeves and the like are repeatedly worn and taken off, the core yarn is repeatedly bent and drafted, and the actual condition of the core yarn can not be retracted to the original state. Based on this, the problem of the exposed core yarn due to the above reasons is also in need of solving.
Disclosure of Invention
Aiming at the defects existing in the prior art, one of the purposes of the invention is to provide a multi-core spun yarn structure for improving the stability of the spun yarn.
The first object of the invention is achieved by the following technical scheme: the utility model provides an increase multicore core spun yarn structure of core stability, includes core yarn and package yarn, the core yarn has two at least, the package yarn parcel is outside the core yarn, at least one adopts the stereoplasm filament of core yarn, at least one adopts the elongation at break to be less than 50% and the elasticity that contracts at 10% -30% buffering core yarn, stereoplasm filament and buffering core yarn intertwine or parallel arrangement.
By adopting the technical scheme, one of the core yarns is wound with the hard filament by adopting the buffer core yarn with the extension capability and the retraction capability, and the buffer core yarn can wrap the hard filament to provide deformation capability instead of the hard filament, so that the extensibility of the glove woven by the multi-core yarn of the type is provided. If the hard filament is a metal filament, the hard filament has no retraction performance after being stretched, and a plurality of parts after being stretched can be wound with the buffer core yarn, so that the arched parts on the single spiral coil are very few, and the problem that the exposed metal filament is arched and exposed is difficult to occur. If the hard filament is basalt filament, the core yarn is still relatively stable when the broken condition occurs under the severe condition, and the buffer core yarn is protected because the buffer core yarn is wound, so that the broken hard filament with the direct long section exposed outside is avoided. Thus, the buffer core yarn forms a buffer protector when the hard filaments are arched or broken, and forms a core yarn with buffer function together with the hard filaments. The core yarn arranged in parallel receives most of the drawing force by the buffer core yarn as the buffer yarn when the yarn is drawn in the machine direction, and the other hard filament receives a smaller drawing force, so that it is not broken nor elongated much.
The buffer core yarn with the elongation breaking rate of more than 50 percent has overlarge deformation range and generally has thicker single wire body. The buffer core yarn with the retraction elasticity less than 10 percent has poorer retraction performance and can not meet the ductility and use requirements of the glove. The buffer core yarn with the retraction elasticity of more than 30 percent has over-strong retraction performance and easily causes the problem that hard filaments are extruded and arched.
The present invention may be further configured in a preferred example to: the retractive elasticity is according to formula QUOTE />Obtained, of the formula QUOTE/> />; RLII is the percentage of the retraction of the buffered core yarn after stretching; li refers to the overall length of the buffer core yarn after stretching in mm; lii refers to the total length in mm of the stretched buffer core yarn when it is returned to a fixed state after being released.
By adopting the technical scheme, the retraction elasticity calculation of the buffer core yarn is limited, and not all fibers are suitable for being used as buffer protection pieces of hard filaments.
The present invention may be further configured in a preferred example to: the wrapping yarn is short fiber, a plurality of short fibers are gathered on the surface layer of the core yarn to form multi-core wrapping yarn, and the short fiber comprises one or more of polyethylene short fiber, aramid short fiber, terylene, chinlon, viscose, tencel, modal, polypropylene fiber, cotton and acrylon.
By adopting the technical scheme, a plurality of short fibers are adopted, the short fibers are slim, the number of the short fibers is large, the multi-core spun yarn is light and thin, and the manufactured multi-core spun yarn and textile thereof are soft and have good hand feeling. The short fibers can be made of the same material or different materials, and the comprehensive performance of the textile can be improved when different materials are used.
The material can be multi-core-spun yarn, and the multi-core-spun yarn further has the reinforcing performance after the core yarn has the cutting resistance and the buffering protection capability. The polyethylene staple fibers can improve the strength, cut resistance and abrasion resistance of the textile. The aramid staple fiber can increase strength, cut resistance and flame retardance. The terylene and the chinlon can improve the strength and the comfort. The textile made of the viscose staple fibers has the advantages of smoothness, coolness, ventilation, static resistance, ultraviolet resistance, gorgeous color and good color fastness. The textile made by the tencel is smooth to touch. The textile made of Modal has good moisture absorption, sweat release and air permeability. The textile made of the polypropylene staple fibers has the advantages of not only preventing cutting, but also having obvious moisture absorption effect and soft hand feeling.
The present invention may be further configured in a preferred example to: the length of the short fiber is 20mm-75mm, and the thickness of the short fiber is 0.8D-3.5D.
By adopting the technical scheme, the softness of the short fibers is higher, the short fibers are mutually stumbled, and the wrapping effect is good.
The present invention may be further configured in a preferred example to: the buffer core yarn is at least one of polyester filaments, polyethylene filaments and aramid 1414 filaments.
By adopting the technical scheme, the polyester filaments, the polyethylene filaments and the aramid 1414 filaments have good strength, wear resistance and elasticity.
The second purpose of the invention is to provide a manufacturing process of the multi-core spun yarn structure for increasing the stability of the spun yarn, which has the following technical scheme: the method comprises the following steps:
Step one, selecting materials: the hard filament can be one of metal filament, glass fiber filament and basalt filament; the buffer core yarn selects the fiber with the elongation at break less than 50% and the retraction elasticity between 10% and 30%, and the value of the retraction elasticity can be according to QUOTE />Calculated, where QUOTE/> />；
Step two, double twisting: winding the hard filament yarn and the buffer core yarn with each other in the Z direction or the S direction by adopting a two-for-one twister or a cladding machine to obtain the core yarn;
step three, wrapping: and (3) making the covering yarn and the core yarn into the multi-core covering yarn through a core covering process.
By adopting the technical scheme, the manufacturing method of the multi-core spun yarn is provided, and compared with the traditional environment, the scheme has the important points of material selection and more special selection of raw materials. The other core yarn selected in the scheme can meet the requirement of retraction elasticity besides meeting the requirement of elongation at break, and can play a role in buffering and protecting the hard filament core yarn.
The present invention may be further configured in a preferred example to: in the first step, the calculated value of the retraction elasticity is obtained as follows: taking a section of buffer core yarn to be selected as a sample, wherein the length of each sample is equal, and designating any one of the samples in the range of 100-500mm as a rated length, wherein the length is taken as an original length L0; stretching the samples by using a stretching instrument, wherein the stretching distance of each sample is the same, and the total length of the stretched samples is Li; loosening the stretching of the sample, and measuring the total length of the sample without deformation in a stable state, wherein the length is Lii; finally, the retraction elasticity is calculated through three values, and the buffer core yarn is selected.
By adopting the technical scheme, accurate retraction elasticity value can be obtained, so that the preferable buffer core yarn is obtained.
The invention further provides a manufacturing process of the multi-core spun yarn structure for improving the stability of the spun yarn, which comprises the following steps of: the method comprises the following steps:
Step one, selecting materials: the hard filament can be one of metal filament and mineral fiber filament; the buffer core yarn selects a fiber with elongation at break less than 50% and a retractive elasticity less than 30%, the value of retractive elasticity being calculated from RLII = Δl/li×100, where Δl = Li-Lii;
step two, double twisting: the hard filament yarn and the buffer core yarn are arranged in parallel by adopting a doubling machine to obtain core yarn;
step three, wrapping: and (3) making the covering yarn and the core yarn into the multi-core covering yarn through a core covering process.
By adopting the technical scheme, the manufacturing method of the multi-core spun yarn is provided, and the main difference between the manufacturing method and the previous method is that the arrangement modes of the two core yarns are different. The core yarn arranged in parallel receives most of the drawing force by the buffer core yarn as the buffer yarn when the yarn is drawn in the machine direction, and the other hard filament receives a smaller drawing force, so that it is not broken nor elongated much.
The present invention may be further configured in a preferred example to: in the first step, the calculated value of the retraction elasticity is obtained as follows: taking a section of buffer core yarn to be selected as a sample, wherein the length of each sample is equal, and designating any one of the samples in the range of 100-500mm as a rated length, wherein the length is taken as an original length L0; stretching the samples by using a stretching instrument, wherein the stretching distance of each sample is the same, and the total length of the stretched samples is Li; loosening the stretching of the sample, and measuring the total length of the sample without deformation in a stable state, wherein the length is Lii; finally, the retraction elasticity is calculated through three values, and the buffer core yarn is selected.
By adopting the technical scheme, accurate retraction elasticity value can be obtained, so that the preferable buffer core yarn is obtained.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the hard filament is buffered and protected by the buffer core yarn meeting certain requirements, so that the problem that the hard filament does not have retractive performance or is easy to break after being stretched is solved, and the problem of exposing the core yarn is also controlled;
2. provides basis for selecting the buffer core yarns through a reasonable formula, so that the proper buffer core yarns are more accurately selected.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1.
Fig. 2 is a flow chart of embodiment 1.
Fig. 3 is a schematic structural diagram of embodiment 2.
FIG. 1, wrap; 2. a hard filament; 3. buffering the core yarn.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, a multi-core yarn structure for increasing core-spun stability comprises core yarns and wrapping yarns 1, wherein the number of the core yarns is at least two, and the wrapping yarns 1 are wrapped outside the core yarns.
The covering yarn 1 is preferably a short fiber, and a plurality of short fibers are gathered on the surface layer of the core yarn to form the multi-core covering yarn, wherein the short fiber comprises one or more of polyethylene short fiber, aramid short fiber, terylene, chinlon, viscose, tencel, modal, polypropylene, cotton and acrylon. The length of the short fiber is controlled to be 20mm-75mm, and the thickness of the short fiber is controlled to be 0.8D-3.5D.
At least one of the plurality of core yarns adopts a hard filament 2, at least one of the plurality of core yarns adopts a buffer core yarn 3 with the elongation at break less than 50% and the retraction elasticity between 10% and 30%, and the hard filament 2 and the buffer core yarn 3 are intertwined.
The hard filament 2 may be one of a metal filament, a glass fiber filament, and a basalt filament. The hard filaments 2 are preferably drawn, vibrated, and wound, and the hard filaments 2 are pretreated to reduce the deformation of the woven fabric in the later stage.
Wherein the recoil elasticity is obtained according to formula RLII = Δl/li×100;
Wherein Δl=li-Lii;
RLII is a percentage showing the retraction of the buffer core 3 after stretching;
Li refers to the overall length of the buffer core yarn 3 after stretching in mm;
lii refers to the total length in mm of the stretched buffer core yarn 3 when it is restored to a fixed state after being released.
By the above formula, an accurate value of the retractive elasticity can be obtained, thereby obtaining a preferable and suitable buffer core yarn 3.
As shown in fig. 2, a process for manufacturing a multi-core spun yarn structure for increasing the stability of a core comprises the following steps:
Step one, selecting materials: the hard filament 2 can be one of metal filament, glass fiber filament and basalt filament; the buffer core yarn 3 selects a fiber having an elongation at break of less than 50% and a retractive elasticity of 10% to 30%, the value of the retractive elasticity being calculated from RLII =Δl/li×100, where Δl=li-Lii.
The calculated values of the retractive elasticity are obtained as follows: taking a section of buffer core yarn to be selected as a sample, wherein the length of each sample is equal, and designating any one of the samples in the range of 100-500mm as a rated length, wherein the length is taken as an original length L0; stretching the samples by using a stretching instrument, wherein the stretching distance of each sample is the same, and the total length of the stretched samples is Li; loosening the stretching of the sample, and measuring the total length of the sample without deformation in a stable state, wherein the length is Lii; finally, the retraction elasticity is calculated through three values, and the buffer core yarn is selected.
Step two: the method for preprocessing the core yarn material comprises the following steps: the hard filaments 2 are subjected to drawing, vibration, and winding. The drawing process is a drawing process in which the hard filaments 2 are drawn at least once by a tension roller by a transfer roller. The vibration treatment is to fix two ends of one section of the hard filament 2 in the process of drawing and conveying the hard filament 2, and to swing the hard filament 2 up and down manually or by equipment with a swing arm so as to generate vibration. When swinging, the hard filaments are equivalent to swinging up and down, and the hard filaments deform slightly, so that deformation quantity is generated in advance, and the deformation quantity of a glove product manufactured in the later stage is reduced. The winding process refers to a process in which the hard filament 2 is rewound at least once before being double-twisted with the buffer core yarn 3 to improve the deformation adaptability of the hard filament 2. The hard filaments are deformed to a certain extent, so that the problem of excessive deformation caused by overlong stretching in later use can be reduced, and the problem of exposed core yarns is solved.
Step three, double twisting: the hard filament 2 and the buffer core yarn 3 are mutually wound in the Z direction or the S direction by adopting a two-for-one twister, and the core yarn is obtained.
Step four, wrapping: and (3) making the covering yarn and the core yarn into the multi-core covering yarn through a core covering process. Wherein, ring spinning, vortex spinning or friction spinning can be adopted to obtain the spun staple covered yarn.
Example 2:
The difference from example 1 is that: as shown in fig. 3, the hard filaments 2 are arranged in parallel with the buffer core yarn 3. The hard filaments 2 and the buffer core yarn 3 are arranged in parallel by a doubling machine to obtain the core yarn. The core yarn arranged in parallel receives most of the drawing force by the buffer core yarn as the buffer yarn when the yarn is drawn in the machine direction, and the other hard filament receives a smaller drawing force, so that it is not broken nor elongated much.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (7)

1. The utility model provides an increase multicore covering yarn structure of covering stability, includes core yarn and covering yarn (1), the core yarn has two at least, covering yarn (1) parcel is outside the core yarn, its characterized in that: at least one of the core yarns adopts hard filaments (2), at least one of the core yarns adopts buffer core yarns (3) with the elongation at break less than 50% and the retraction elasticity between 10% and 30%, and the hard filaments (2) and the buffer core yarns (3) are mutually wound or arranged in parallel;
The retraction elasticity is obtained according to the formula RL II=ΔL/Li x 100, wherein Δl=l i-Lii;RLII is the retraction after stretching of the buffered core yarn (3) expressed in percent; l i refers to the overall length of the buffer core yarn after stretching in mm; l ii is the total length in mm of the stretched buffer core yarn (3) after being released and returned to a fixed state;
The wrapping yarn (1) is a short fiber, a plurality of short fibers are gathered on the surface layer of the core yarn to form a multi-core wrapping yarn, and the short fiber comprises one or more of polyethylene short fiber, aramid short fiber, terylene, chinlon, viscose, tencel, modal, polypropylene, cotton and acrylon.
2. The multi-core spun yarn construction of claim 1 wherein the core stability is increased by: the length of the short fiber is 20mm-75mm, and the thickness of the short fiber is 0.5D-3D.
3. The multi-core spun yarn construction of claim 1 wherein the core stability is increased by: the buffer core yarn (3) contains at least one of terylene, polyethylene, aramid fiber, nylon, polypropylene fiber and mineral fiber.
4. A process for making the multi-core spun yarn structure of claim 1 having increased core stability, comprising the steps of:
Step one, selecting materials: the hard filament (2) is one of metal filament and mineral fiber filament; the buffer core yarn (3) selects fibers with the elongation at break less than 50% and the retraction elasticity less than 30%, wherein the value of the retraction elasticity is obtained according to RL II=ΔL/Li multiplied by 100, and the delta L=L i-Lii;
Step two, double twisting: winding the hard filaments (2) and the buffer core yarns (3) with each other in the Z direction or the S direction by adopting a two-for-one twister or a cladding machine to obtain core yarns;
step three, wrapping: and (3) making the covering yarn and the core yarn into the multi-core covering yarn through a core covering process.
5. The process for manufacturing a multi-core spun yarn structure of claim 4 wherein in step one, the calculated value of the retractive elasticity is obtained by: taking a section of buffer core yarn (3) to be selected as a sample, wherein the length of each sample is equal, and designating any one of the samples in the range of 100-500mm as a rated length, wherein the length is taken as an original length L 0; stretching the samples by using a stretching instrument, wherein the stretching distance of each sample is the same, and the total length of the stretched samples is L i; releasing the stretching of the sample, and measuring the total length of the sample in a stable state, wherein the total length is L ii; finally, the retraction elasticity is calculated through three values, and the buffer core yarn (3) is selected.
6. A process for making the multi-core spun yarn structure of claim 1 having increased core stability, comprising the steps of:
Step one, selecting materials: the hard filament (2) is one of metal filament and mineral fiber filament; the buffer core yarn (3) selects fibers with the elongation at break less than 50% and the retraction elasticity less than 30%, wherein the value of the retraction elasticity is obtained according to RL II=ΔL/Li multiplied by 100, and the delta L=L i-Lii;
Step two, double twisting: the hard filaments (2) and the buffer core yarns (3) are arranged in parallel by a doubling machine to obtain core yarns;
step three, wrapping: and (3) making the covering yarn and the core yarn into the multi-core covering yarn through a core covering process.
7. The process for manufacturing a multi-core spun yarn structure of claim 6 wherein in step one, the calculated value of the retractive elasticity is obtained by: taking a section of buffer core yarn (3) to be selected as a sample, wherein the length of each sample is equal, and designating any one of the samples in the range of 100-500mm as a rated length, wherein the length is taken as an original length L 0; stretching the samples by using a stretching instrument, wherein the stretching distance of each sample is the same, and the total length of the stretched samples is L i; loosening the stretching of the sample, and measuring the total length of the sample without deformation in a stable state, wherein the length is L ii; finally, the retraction elasticity is calculated through three values, and the buffer core yarn (3) is selected.
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212741646U (en) * 2020-05-26 2021-03-19 常州科旭纺织有限公司 Multi-core covering yarn structure for increasing covering stability

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1082223A (en) * 1964-02-06 1967-09-06 Kendall & Co Elastic yarn and stocking incorporating it
GB1158601A (en) * 1964-12-24 1969-07-16 Ici Ltd Core Yarns and processes and apparatus for making them
CA1133654A (en) * 1976-10-05 1982-10-19 Robert M. Byrnes, Sr. Protective gloves and the like and a yarn with flexible core wrapped with aramid fiber
US4470251A (en) * 1978-03-30 1984-09-11 Bettcher Industries, Inc. Knittable yarn and safety apparel made therewith
JPS61266627A (en) * 1985-05-21 1986-11-26 旭化成株式会社 Composite yarn
JPS62153326U (en) * 1986-03-24 1987-09-29
JPH02160943A (en) * 1988-12-14 1990-06-20 Shikishima Boseki Kk Covering yarn machine sewing thread
US7121077B2 (en) * 2000-10-31 2006-10-17 World Fibers, Inc. Antimicrobial cut-resistant composite yarn and garments knitted or woven therefrom
JP3963007B2 (en) * 2001-12-21 2007-08-22 東レ・デュポン株式会社 Coated yarn and knitted fabric using the same
US7175908B2 (en) * 2003-06-30 2007-02-13 Connolly Jr Thomas J High temperature search line
US7155891B2 (en) * 2003-09-15 2007-01-02 E. I. Du Pont De Nemours And Company Composite twist core-spun yarn and method and device for its production
US20050086924A1 (en) * 2003-10-28 2005-04-28 Supreme Elastic Corporation Glass-wire core composite fiber and articles made therefrom
EP1873285B1 (en) * 2004-11-10 2015-10-21 Invista Technologies S.à.r.l. Method to make elastic shirting fabric comprising spandex and hard yarn
EP1780318B1 (en) * 2005-08-01 2012-11-07 SHOWA GLOVE Co. Composite fiber and cut-resistant gloves made by using the same
CN201180180Y (en) * 2008-02-04 2009-01-14 苏州市职业大学 Bi-component core silk covering machine
KR101796795B1 (en) * 2009-02-09 2017-11-10 디에스엠 아이피 어셋츠 비.브이. Cut resistant composite yarn
CN203834094U (en) * 2014-01-17 2014-09-17 绍兴超特合纤有限公司 High-performance composite yarn
CN104328559A (en) * 2014-09-29 2015-02-04 江阴职业技术学院 Filigree cotton core-spun yarn and manufacturing method of filigree cotton core-spun yarn
CN206127533U (en) * 2016-06-20 2017-04-26 常州科旭纺织有限公司 Double -contracting covering yarn
CN110892103A (en) * 2017-07-10 2020-03-17 林捻丝株式会社 Covering yarn, plied yarn, and fiber structure using same
CN109667012A (en) * 2017-10-16 2019-04-23 南良实业股份有限公司 High-tenacity cut-resistant composite yarn line and its preparation method
WO2019104370A1 (en) * 2017-11-29 2019-06-06 Ansell Limited Highly cut-resistant composite yarns
CN108660569A (en) * 2018-05-24 2018-10-16 河北新大东纺织有限公司 A kind of stretch yarn and its production method and fabric
CN109853099A (en) * 2019-03-28 2019-06-07 南通神马线业有限公司 A kind of polyamide fibre line with super-tensile parachute
CN110093701B (en) * 2019-05-22 2022-01-07 绍兴程盛纺织有限公司 Method for producing loose elastic core-spun yarn
CN111088585B (en) * 2020-01-06 2021-12-28 常州科旭纺织有限公司 Short fiber coated gloves and manufacturing process thereof
CN111621887B (en) * 2020-05-26 2024-06-14 常州科旭纺织有限公司 Multi-core-spun yarn structure for improving core-spun stability and manufacturing process thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212741646U (en) * 2020-05-26 2021-03-19 常州科旭纺织有限公司 Multi-core covering yarn structure for increasing covering stability

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