CN110747553A - Composite-structure core-spun yarn, fabric and production method thereof - Google Patents
Composite-structure core-spun yarn, fabric and production method thereof Download PDFInfo
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- CN110747553A CN110747553A CN201911203352.6A CN201911203352A CN110747553A CN 110747553 A CN110747553 A CN 110747553A CN 201911203352 A CN201911203352 A CN 201911203352A CN 110747553 A CN110747553 A CN 110747553A
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- 239000004759 spandex Substances 0.000 claims abstract description 61
- 239000000126 substance Substances 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 238000009987 spinning Methods 0.000 claims abstract description 25
- 238000007378 ring spinning Methods 0.000 claims abstract description 23
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- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 17
- 229920001778 nylon Polymers 0.000 claims description 12
- 239000004677 Nylon Substances 0.000 claims description 9
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- 229920000728 polyester Polymers 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 6
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- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- -1 modal Polymers 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
- HGINCPLSRVDWNT-UHFFFAOYSA-N acrylaldehyde Natural products C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 claims 1
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Classifications
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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
- D02G3/32—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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/02—Spinning or twisting machines in which the product is wound-up continuously ring type
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/005—Arrangements for feeding or conveying the slivers to the drafting machine
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
- D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- 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
- D02G3/22—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
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
-
- 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
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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
- 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
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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
- 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
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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
- 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]
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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
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
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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 provides a composite-structure core-spun yarn, a fabric and a production method thereof, wherein the production method comprises the following steps: producing sheath-core structure covering yarns by using outer covering fiber strands, elastic chemical fiber strands and spandex core yarns through a ring spinning composite core-covering yarn spinning device; the ring spinning composite core-spun yarn spinning device comprises a ring spinning machine table and a spandex core-spun yarn spinning device; the ring spinning machine station sequentially comprises a feeding part, a drafting part and a twisting forming mechanism along the processing direction of the yarn; the drafting component comprises a back roller, a back leather roller matched with the back roller, a middle roller, an upper pin, a lower pin, a front roller and a front leather roller. The production method has the advantages of convenient operation, high production efficiency and high yarn strength, and the price is cheaper than that of the double-core-spun yarn on the premise of having the linear performance of the double-core-spun yarn; finally, the finished fabric made of the yarns has high elongation of spandex single-covered products, and also has high recovery and low shrinkage of double-covered core products.
Description
Technical Field
The invention relates to the field of spinning, in particular to a composite-structure core-spun yarn.
Background
At present, elastic yarns in the traditional textile industry are all produced by adopting a spandex core-spun technology, and spandex single-covered and spandex double-covered core products are produced along with the development of the core-spun yarn technology. The spandex single-core-wrapping technology is simple to operate, core yarns are not exposed, the yarn elasticity is excellent, but the fabric made of the conventional single-core-wrapping variety has poor recovery performance. And then, a double-core-wrapped product is produced, the product can have excellent elasticity of a spandex single wrap and good recovery performance, and meets the requirements of consumers on high elasticity and low shrinkage, but the double-core-wrapped technology is complex in production operation for textile enterprises, core wires are easy to expose, the dyeability is poor, and the yarn cost is too high.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention is directed to a high elastic and high recovery composite core-spun yarn and a method for producing the same, which solves the problems of the prior art.
To achieve the above objects and other related objects, the present invention is achieved by the following technical solutions.
The invention provides a production method of composite structure core-spun yarn, which adopts an outer covering fiber strip, an elastic chemical fiber strip and spandex core yarn to produce the skin-core structure core-spun yarn through a ring spinning device of composite core-spun yarn;
the ring spinning composite core-spun yarn spinning device comprises a ring spinning machine table and a spandex core-spun yarn spinning device;
the ring spinning machine station sequentially comprises a feeding part, a drafting part and a twisting forming mechanism along the processing direction of the yarn; the drafting component comprises a rear roller, a rear leather roller matched with the rear roller, a middle roller, an upper pin, a lower pin, a front roller and a front leather roller;
the spandex core-spun yarn spinning device sequentially comprises a core yarn tension roller and a yarn guide part along the processing direction of yarn;
the outer covering fiber strips and the elastic chemical fiber strips are converged with spandex core yarns at the front jaw positions of the front roller and the front leather roller matched with the front roller through the feeding part and the drafting part, and the spandex core yarns and the front leather roller are twisted together to form the composite-structure core-spun yarn.
According to the technical scheme of the production method, the spandex core-spun yarn spinning device further comprises a tension control component, and the tension control component is used for detecting the rotating speed of the front roller so as to control and adjust the rotating speed of the core yarn tension roller to control the pre-drafting multiple of the spandex core yarn.
According to the technical scheme of the production method, the feeding part comprises a hanging ingot and a double-hole bell mouth along the processing direction of the yarn.
According to the technical scheme of the production method, along the processing direction of the yarns, the double-hole bell mouth is arranged at the upstream of the rear roller and the rear leather roller matched with the rear roller; the double-hole bell mouth comprises two bell mouths in an up-and-down structure, wherein the opening area of the inlet of one bell mouth is larger than that of the inlet of the other bell mouth, and the opening area of the outlet of one bell mouth is larger than that of the outlet of the other bell mouth; the external packing beard strip is fed through the horn mouth with larger inlet opening area and outlet opening area, and the elastic chemical fiber beard strip is fed through the horn mouth with smaller inlet opening area and outlet opening area.
According to the technical scheme of the production method, the outer covering fiber strips are roving yarns formed by one or more of cotton, viscose, tencel, modal, terylene and nylon; and/or
The quantitative amount of the outer covering fiber strip is 5.0g/10 m-10.0 g/10 m; and/or
The twisting coefficient of the outer coated fiber strip is 50-125; and/or
The color of the outer covering fiber strip is one or more than two colors; and/or
The using amount of the outer covering fiber strips is 50-80 wt% of the weight of the yarn; and/or
The elastic chemical fiber strand is roving formed by one of terylene, nylon and acrylic fibers; and/or
The elongation at break of the fibers in the elastic chemical fiber strand is 20-50%; and/or
The quantitative amount of the elastic chemical fiber strands is 2.0g/10 m-4.5 g/10 m; and/or
The ration of the elastic chemical fiber strand is 3g/10 m-5 g/10m less than that of the outer coated strand; and/or
The twist coefficient of the elastic chemical fiber strand is 50-80; and/or
The color of the elastic chemical fiber strand is single color or the mixture of more than two colors; and/or
The usage amount of the elastic chemical fiber strand is 10 wt% -40 wt% of the yarn mass.
According to the technical scheme of the production method, the denier of the spandex core yarn is 20D-105D; and/or the fiber elongation at break of the spandex core yarn is 200-700%; and/or
The usage amount of the spandex core yarn is 3 wt% -13 wt% of the yarn mass.
According to the technical scheme of the production method, the number of the core yarn tension rollers is two, the two core yarn tension rollers rotate in the same direction and at the same speed through the tension control component, and a spinning cake of the spandex core yarn is placed between the two core yarn tension rollers and rotates along with the two core yarn tension rollers so that the spandex core yarn is unwound to one of the core yarn tension rollers; and/or the pre-drafting multiple of the spandex core yarn is 1.8-4.5 times; and/or the tension control component is a servo motor.
The invention also provides a composite structure core-spun yarn produced by the production method.
According to the composite structure core-spun yarn, the number of the composite structure core-spun yarn is 10 Tex-40 Tex; and/or the twist factor is 330 to 500.
The invention also provides a fabric, which adopts the composite-structure core-spun yarn.
According to the invention, the double-hole bell mouth of the feeding part of the ring spinning machine is transformed into a 'mother-son' shape, the outer covering fiber strand A is fed through a wide channel, and the elastic chemical fiber strand B is fed through a narrow channel, so that the elastic chemical fiber is positioned in the middle of the outer covering fiber strand.
The technical scheme of the invention has the beneficial effects that:
the outer covering fiber strand A and the elastic chemical fiber strand B are fed into a drafting area of a ring spinning machine through a 'child-mother' double-hole horn mouth, spandex is controlled by a servo motor to be pre-drafted by multiple times, the three are converged at a front jaw consisting of a front roller and a front leather roller matched with the front roller, and the three are twisted by a high-speed spindle in a rotating mode to form the core-spun yarn with the composite structure.
The method has the advantages of convenient operation, high production efficiency and high yarn strength, and the price is cheaper than other double-core-spun yarns in the prior art on the premise of having the core-spun yarn performance. Finally, the finished fabric made of the yarns has high elongation of spandex single-covered products, and also has high recovery and low shrinkage of double-covered core products.
Drawings
FIG. 1 is a schematic view showing a spinning apparatus and a process for spinning a composite core-spun yarn using ring spinning in a composite structure core-spun yarn according to the present invention
Description of the reference numerals in FIG. 1
A is an outer covering strand; b is an elastic chemical fiber strand; c is spandex core yarn;
1 is a hanging spindle for hanging a roving spindle formed by wrapping a strand A; 2, hanging a roving spindle formed by the elastic chemical fiber strand B; 3 is a double-hole bell mouth; 4 is a back roller and a back leather roller matched with the back roller; 5 is a middle roller and an upper pin and a lower pin matched with the middle roller; 6 is a front roller and a front leather roller matched with the front roller; 7 is a yarn guide hook; 8 is a cop; 9 is a guide wire part; 10 is a core wire tension godet roller; 11 is a spinning cake of spandex core yarn; 12 is a tension control member;
FIG. 2 shows a front view, a side view and a top view of a dual-orifice flare of the present invention
a is a wider horn mouth for feeding the outer covering fiber strip A
B is a narrower horn mouth for feeding the elastic chemical fiber strand B
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Before the present embodiments are further described, it is to be understood that the scope of the invention is not limited to the particular embodiments described below; it is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition to the specific methods, devices, and materials used in the examples, any methods, devices, and materials similar or equivalent to those described in the examples may be used in the practice of the invention in addition to the specific methods, devices, and materials used in the examples, in keeping with the knowledge of one skilled in the art and with the description of the invention.
Example 1
The embodiment discloses a ring spinning composite core-spun yarn spinning device adopted in the composite structure core-spun yarn shown in figure 1; the ring spinning composite core-spun yarn spinning device comprises a ring spinning machine table and a spandex core-spun yarn spinning device;
the ring spinning machine station sequentially comprises a feeding part, a drafting part and a twisting forming mechanism along the processing direction of the yarn; the drafting component comprises a rear roller, a rear leather roller 4 matched with the rear roller, a middle roller, an upper pin 5 matched with the middle roller, a lower pin 5 matched with the middle roller, a front roller and a front leather roller 6 matched with the front roller; the spandex core-spun yarn spinning device includes a core yarn tension roller 10 and a yarn guide member 9 in this order along the machine direction of the yarn.
As shown in fig. 1, according to the above technical solution, the spandex core-spun yarn spinning device further includes a tension control part 12, and the tension control part 12 is used for detecting the rotation speed of the front roller so as to control and adjust the rotation speed of the core yarn tension roller 10 to control the pre-draft multiple of the spandex core yarn C.
In one particular embodiment, as shown in fig. 1, the feed assembly includes spindles 1, 2 and a double bore flare 3 along the machine direction of the yarn. In the embodiment shown in fig. 1, two spindles are provided for mounting the roving spindle formed of the covering fiber strand a and the roving spindle formed of the elastic chemical fiber strand B, respectively.
As shown in fig. 1, the double-hole bell 3 is provided upstream of the back roller and the back leather roller 4 matching the back roller in the yarn processing direction. As shown in fig. 2, the dual-hole bell mouth 3 includes two bell mouths a and b in an up-and-down structure, wherein the opening area of the inlet of one bell mouth a is larger than that of the inlet of the other bell mouth b, and the opening area of the outlet of one bell mouth a is larger than that of the outlet of the other bell mouth b; the external covering fiber strand A is fed through a bell mouth a, and the elastic chemical fiber strand B is fed through a bell mouth B.
In one embodiment as shown in fig. 1, the thread guiding member 9 is a thread guiding wheel.
In one embodiment as shown in fig. 1, there are two core yarn tension rollers 10, the two core yarn tension rollers are rotated in the same direction and at the same speed by the tension control part 12, and a cake 11 of spandex core yarn is placed between the two core yarn tension rollers 10 and rotated with the two core yarn tension rollers 10 so that the spandex core yarn is unwound onto one of the core yarn tension rollers 10.
In one embodiment as shown in fig. 1, the tension control member 12 is a servo motor.
When the ring spinning composite core spun yarn spinning device is used for producing the composite structure core spun yarn, as shown in figure 1, an elastic chemical fiber strand B is fed through a narrow channel a of a double-hole bell mouth, an outer coated strand A is fed through a wide channel B of the double-hole bell mouth, and then passes through a rear roller, a rear leather roller 4 matched with the rear roller, a middle roller, an upper pin 5 matched with the middle roller and a lower pin 5 to a front roller and a front leather roller 6 matched with the front roller together; the spandex core yarn C is converged with the outer covering fiber strip A and the elastic chemical fiber strip B through a front jaw formed by the core yarn tension roller 10, the yarn guide part 9, the front roller and the front leather roller 6 matched with the front roller, and is twisted by a high-speed spindle to form the core-spun yarn with the composite structure.
According to the technical scheme, the pre-drafting multiple of the spandex core yarn can be controlled by controlling the rotation speed ratio among the core yarn tension roller 10, the front roller and the front leather roller 6 matched with the front roller through the servo motor 12. In one embodiment as shown in fig. 1, the pre-draft multiple of spandex core yarn C is 1.8 to 4.5 times when producing the composite core yarn of the present application.
When the ring spinning composite core-spun yarn spinning device is adopted to produce the composite structure core-spun yarn as described above:
the outer covering fiber strip is roving yarn formed by one or more of cotton, viscose, tencel, modal, terylene and nylon;
the quantitative amount of the outer covering fiber strip is 5.0g/10 m-10.0 g/10 m;
the twisting coefficient of the outer coated fiber strip is 50-125;
the color of the outer covering fiber strip is one or more than two colors;
the using amount of the outer covering fiber strips is 50-80 wt% of the weight of the yarn;
the elastic chemical fiber strand is roving formed by one of terylene, nylon and acrylic fibers;
the elongation at break of the fibers in the elastic chemical fiber strand is 20-50%;
the quantitative amount of the elastic chemical fiber strands is 2.0g/10 m-4.5 g/10 m;
the ration of the elastic chemical fiber strand is 3g/10 m-5 g/10m less than that of the outer coated strand;
the twist coefficient of the elastic chemical fiber strand is 50-80;
the color of the elastic chemical fiber strand is single color or the mixture of more than two colors;
the usage amount of the elastic chemical fiber strands is 10 wt% -40 wt% of the yarn mass;
the denier of the spandex core yarn is 20D-105D;
the fiber breaking elongation of the spandex core yarn is 200-700 percent;
the usage amount of the spandex core yarn is 3 wt% -13 wt% of the yarn mass.
Example 2
The blue cotton is respectively processed by the procedures of cotton blending, blowing, cotton carding, pre-merging, sliver lapping, combing, drawing and roving to prepare the blue pure cotton roving sliver A, the roving ration is 8.0g/10m, and the twist coefficient is 110.
The white elastic polyester fiber is made into an elastic polyester roving sliver B through the procedures of cotton mixing, blowing, cotton carding, drawing and roving, wherein the roving ration is 3.0g/10m, and the twist coefficient is 60; the elastic polyester fiber has a fiber length of 38mm and a fiber elongation at break of 25%.
The core yarn is 70D spandex yarn.
On the improved ring spinning frame, feeding blue pure cotton roving strands A from a double-hole bell-mouth wide channel a, and feeding white elastic polyester roving strands B from a double-hole bell-mouth wide channel B; the spandex cake is placed on two core yarn tension godet rollers, 3.5 times of drafting is set, a spandex core yarn C is converged with a drafted A, B strand at a front jaw through a yarn guide part 9, and the position of the spandex core yarn C can be adjusted to the center of a A, B strand through a yarn guide wheel; the total draft multiple of the spinning frame is 30.7 times, the yarn twist coefficient is 470, and finally the yarn with the 36.9TEX three-layer structure is manufactured through twisting, wherein the usage amount of the fiber A of the blue pure cotton roving strand accounts for 68 wt% of the finished yarn, the usage amount of the fiber B of the elastic polyester roving strand accounts for 25 wt% of the finished yarn, and the usage amount of the spandex core yarn C accounts for 7 wt% of the finished yarn.
The yarn can be used on a woven product, the breaking strength of a single yarn reaches 15.0CN/DTEX, the lowest breaking strength reaches 11.5CN/DTEX, and the standard test of the finished fabric ASTM D3107 is as follows: the elastic elongation was 35% and the elastic recovery was 97%. High strength, good weavability, good elasticity and elastic recovery performance. The product keeps good skin-friendly property of the outer layer cotton fiber, the middle layer elastic polyester provides good strength and recovery performance, and the inner layer spandex silk can enable the yarn to obtain excellent elasticity.
Example 3
The white short tencel fiber with the proportion of 60 wt% of cotton and 40 wt% of tencel is respectively processed by the procedures of cotton blending, blowing, cotton carding, pre-combining, strip rolling, combing, drawing and roving to prepare the natural white tencel roving sliver A, the roving ration is 7.0g/10m, and the twist coefficient is 85.
The white nylon fiber is made into a white nylon roving sliver B through the procedures of cotton mixing, blowing, cotton carding, drawing and roving, wherein the roving ration is 3.5g/10m, and the twist coefficient is 60; the length of the nylon fiber is 38mm, and the elongation at break of the fiber is 30%.
The core yarn is made of 40D spandex yarn.
On the improved ring spinning frame, feeding white tencel roving strands A from a double-hole bell-mouth wide channel a, and feeding white nylon roving strands B from a double-hole bell-mouth wide channel B; the fiber strand B is placed in the middle of the A; the spandex cake is placed on two core yarn tension godet rollers, 3.0 times of drafting is set through a servo motor, the spandex yarn C is converged with a drafted A, B strand at a front jaw through a godet wheel 9, and the position of the spandex yarn C is adjusted to the center of a A, B strand through the godet wheel; the total draft multiple of the spinning frame is 54.9 times, the twist coefficient of the spun yarn is 460, and finally the 19.7TEX three-layer structure yarn is manufactured by twisting, wherein the usage amount of the white roving sliver A fiber accounts for 62 wt% of the finished yarn mass, the usage amount of the white nylon sliver B fiber accounts for 30 wt% of the finished yarn mass, and the usage amount of the spandex core yarn C accounts for 8 wt% of the finished yarn mass.
The yarn can be used on a knitted product, the breaking strength of a single yarn reaches 16.5CN/DTEX, the lowest breaking strength reaches 12.5CN/DTEX, and the finished fabric FZ/T01034 is subjected to standard test: the elastic elongation was 45% and the elastic recovery was 96%. The product keeps good skin-friendly property and drapability of the tencel fiber at the outer layer, the nylon fiber at the middle layer provides good strength and recovery performance, and the spandex fiber is added at the inner layer, so that the yarn has excellent elasticity.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A production method of composite structure core-spun yarn is characterized in that outer covering fiber strands (A), elastic chemical fiber strands (B) and spandex core filaments (C) are adopted to produce the sheath-core structure core-spun yarn through a ring spinning device;
the ring spinning composite core-spun yarn spinning device comprises a ring spinning machine table and a spandex core-spun yarn spinning device;
the ring spinning machine station sequentially comprises a feeding part, a drafting part and a twisting forming mechanism along the processing direction of the yarn; the drafting component comprises a rear roller, a rear leather roller (4) matched with the rear roller, a middle roller, an upper pin (5) and a lower pin (5) matched with the middle roller, a front roller and a front leather roller (6) matched with the front roller;
the spandex core-spun yarn spinning device sequentially comprises a core yarn tension roller (10) and a yarn guide part (9) along the processing direction of yarn;
the outer covering strand (A) and the elastic chemical fiber strand (B) are converged with the spandex core yarn (C) through a feeding part and a drafting part to a front roller and a front jaw of a front leather roller (6) matched with the front roller, and are twisted together to form the composite structure core-spun yarn.
2. The production method according to claim 1, wherein the spandex core-spun yarn spinning device further comprises a tension control part (12), and the tension control part (12) is used for detecting the rotating speed of a front roller so as to control and adjust the rotating speed of the core yarn tension roller (10) to control the pre-drafting multiple of the spandex core yarn (C).
3. Production method according to claim 1, characterized in that the feed elements comprise, in the machine direction of the yarn, a sling spindle and a double-hole bell (3).
4. A production method according to claim 3, characterized in that the double-hole bell (3) is provided upstream of the rear roller and the rear leather roller (4) matching the rear roller, in the machine direction of the yarn; the double-hole bell mouth (3) comprises two bell mouths (a, b) with upper and lower structures, wherein the opening area of the inlet of one bell mouth (a) is larger than that of the inlet of the other bell mouth (b), and the opening area of the outlet of one bell mouth (a) is larger than that of the outlet of the other bell mouth (b); the outer covering fiber strand (A) is fed through a bell mouth (a), and the elastic chemical fiber strand (B) is fed through a bell mouth (B).
5. The production method according to claim 1, wherein the over-wrapped fiber strand (a) is a roving formed of one or more selected from the group consisting of cotton, viscose, tencel, modal, polyester, and nylon; and/or
The quantitative amount of the outer covering fiber strip (A) is 5.0g/10 m-10.0 g/10 m; and/or
The twisting coefficient of the outer coated fiber strip (A) is 50-125; and/or
The color of the outer covering fiber strip (A) is one or more than two colors; and/or
The using amount of the outer covering fiber strip (A) is 50 to 80 weight percent of the mass of the yarn; and/or
The elastic chemical fiber strand (B) is roving formed by one of terylene, nylon and acrylon; and/or
The elongation at break of the fibers in the elastic chemical fiber strand (B) is 20-50%; and/or
The quantitative amount of the elastic chemical fiber strand (B) is 2.0g/10 m-4.5 g/10 m; and/or
The ration of the elastic chemical fiber strand (B) is 3g/10m to 5g/10m smaller than that of the outer coated strand (A); and/or
The twist coefficient of the elastic chemical fiber strand (B) is 50-80; and/or
The color of the elastic chemical fiber strand (B) is single color or the mixture of more than two colors; and/or
The usage amount of the elastic chemical fiber strand (B) is 10 wt% -40 wt% of the yarn mass.
6. The production method according to claim 1, wherein the spandex core yarn (C) has a denier of 20D to 105D; and/or the fiber elongation at break of the spandex core yarn (C) is 200-700%; and/or
The usage amount of the spandex core yarn (C) is 3-13 wt% of the yarn mass.
7. The production method according to claim 2, wherein the number of the core yarn tension rollers (10) is two, both of the core yarn tension rollers are rotated in the same direction and at the same speed by the tension control part (12), and a cake of the spandex core yarn is placed between the two core yarn tension rollers (10) and rotated with the two core yarn tension rollers so that the spandex core yarn is unwound onto one of the core yarn tension rollers (10); and/or the pre-drafting multiple of the spandex core yarn (C) is 1.8-4.5 times; and/or the tension control member (12) is a servo motor.
8. A composite-structure core-spun yarn produced by the production method according to any one of claims 1 to 7.
9. The composite core-spun yarn of claim 8 wherein the composite core-spun yarn has a count of 10Tex to 40 Tex; and/or the twist factor is 330 to 500.
10. A fabric, characterized in that the fabric adopts the composite structure core-spun yarn of any one of claims 8 to 9.
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| CN112813555A (en) * | 2021-01-18 | 2021-05-18 | 阿克苏华孚色纺有限公司 | Production device and production process of color-mixed spun core-spun colored porcelain yarn |
| CN113062022A (en) * | 2021-03-17 | 2021-07-02 | 绍兴市柯桥区东纺纺织产业创新研究院 | Production method of high-elastic yarn |
| US11359309B2 (en) | 2018-12-21 | 2022-06-14 | Target Brands, Inc. | Ring spun yarn and method |
| CN114875535A (en) * | 2022-05-30 | 2022-08-09 | 江南大学 | Preparation method of self-powered yarn with composite structure |
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