CN116905146A - Double-filament wrapped yarn, preparation method thereof and production equipment - Google Patents

Double-filament wrapped yarn, preparation method thereof and production equipment Download PDF

Info

Publication number
CN116905146A
CN116905146A CN202310846302.XA CN202310846302A CN116905146A CN 116905146 A CN116905146 A CN 116905146A CN 202310846302 A CN202310846302 A CN 202310846302A CN 116905146 A CN116905146 A CN 116905146A
Authority
CN
China
Prior art keywords
wrapping
filament
double
filaments
short fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310846302.XA
Other languages
Chinese (zh)
Inventor
张栋伟
袁辉
周立明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Esquel Textiles Co Ltd
Original Assignee
Guangdong Esquel Textiles Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Esquel Textiles Co Ltd filed Critical Guangdong Esquel Textiles Co Ltd
Priority to CN202310846302.XA priority Critical patent/CN116905146A/en
Publication of CN116905146A publication Critical patent/CN116905146A/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04Blended or other yarns or threads containing components made from different materials
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/02Cotton
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides

Landscapes

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

Abstract

The invention discloses a double-filament wrapped yarn, a preparation method and production equipment thereof, which comprises the following steps: feeding the short fiber strand serving as an inner core layer into a spinning device, and simultaneously feeding the first wrapping filaments and the second wrapping filaments into the spinning device from two sides of the short fiber strand respectively; and twisting and winding the first wrapping filaments and the second wrapping filaments on the short fiber strands in sequence by utilizing a dislocation spinning technology, wherein a first twisting triangular area is formed between the short fiber strands and the first wrapping filaments and is twisted and wrapped to form monofilament wrapping yarns, and a second twisting triangular area is formed between the monofilament wrapping yarns and the second wrapping filaments and is twisted and wrapped to form double-filament wrapping yarns. According to the invention, two filaments are sequentially wrapped on the short fiber through the dislocation spinning technology, so that the double-filament wrapped yarn meeting the requirements of hairiness, hand feeling and wear resistance can be obtained.

Description

Double-filament wrapped yarn, preparation method thereof and production equipment
Technical Field
The invention relates to the technical field of spinning, in particular to a double-filament wrapping yarn capable of wrapping short fibers twice, and a preparation method and production equipment thereof.
Background
Filament-wrapped yarns are an important class of differential functional yarns that have their own unique characteristics in terms of appearance and durability due to their unique wrapping structure.
The prior art method for producing the wrapping yarn is to use Sirofil spinning to carry out the composite wrapping of filaments and staple fibers; there are also production methods in which two filaments and a staple are used simultaneously for composite wrapping; there is also a production method in which the filament and the staple are first wrapped in a composite manner, and then the composite yarn and the filament are twisted and then wrapped. Meanwhile, some researches are also carried out on the angle of filament wrapping and the setting of a twisting triangular area, but a spinning method using double filament wrapping is not simple and ingenious enough. Therefore, how to ensure that the double wires participate in wrapping and the double wires have the effect of multi-layer superposition is a technical problem which needs to be solved at present.
Disclosure of Invention
The invention aims to provide a double-filament wrapping yarn, a preparation method and production equipment thereof, wherein two filaments are sequentially wrapped on a short fiber in a staggered spinning mode, so that the double-filament wrapping yarn meeting hairiness, hand feeling and wear resistance requirements can be obtained.
The implementation purpose of the invention is mainly realized by the following technical scheme:
in a first aspect, the present invention provides a method of making a double filament wrapped yarn comprising:
feeding a short fiber strand as an inner core layer into a spinning device, and simultaneously feeding a first wrapping filament and a second wrapping filament into the spinning device from both sides of the short fiber strand;
and twisting and winding the first wrapping filaments and the second wrapping filaments on the short fiber strands in sequence by utilizing a dislocation spinning technology, wherein a first twisting triangular area is formed between the short fiber strands and the first wrapping filaments and is twisted and wound to form monofilament wrapping yarns, and a second twisting triangular area is formed between the monofilament wrapping yarns and the second wrapping filaments and is twisted and wound to form double-filament wrapping yarns.
In a preferred embodiment of the present invention, the first twisting triangle and the second twisting triangle are adjusted to balance hairiness, hand feeling and wear resistance requirements required by the yarn by changing the distance between the feeding position of the first wrapping filament, the feeding position of the short fiber strand and the feeding position of the second wrapping filament when the offset spinning is performed.
In a preferred embodiment of the present invention, the distance between the feeding position of the first wrapping filaments and the feeding position of the second wrapping filaments is 5mm to 25mm.
In a preferred embodiment of the invention, the distance between the feeding point of the staple fiber batt and the feeding point of the first wrapping filaments is L 1 The distance between the feeding position of the short fiber strand and the feeding position of the second wrapping filament is L 2 Then there is L 1 :L 2 =1:1.5~1:4。
In a preferred embodiment of the present invention, the staple fiber batt is a cotton fiber batt, and the first wrapping filaments and the second wrapping filaments are nylon filaments.
In a second aspect, the present invention also provides a production apparatus for a double-filament-wrapped yarn for carrying out the method of producing a double-filament-wrapped yarn as described above, the production apparatus comprising:
the roller mechanism is positioned at the rear side of the front leather roller, and the short fiber strands can be fed into the front leather roller through the drafting of the roller mechanism;
the first yarn guiding wheel is positioned at one side of the roller mechanism, and the first wrapping filaments can be fed into the front leather roller through the traction of the first yarn guiding wheel;
the second godet wheel is positioned at the other side of the roller mechanism, and the second wrapping filament can be fed into the front leather roller through the second godet wheel.
In a preferred embodiment of the present invention, the first godet wheel and the second godet wheel are movably disposed above the front roller in the axial direction of the front roller.
In a preferred embodiment of the present invention, a distance between the center of the first godet wheel and the center of the second godet wheel is 5mm to 25mm in the axial direction of the front roller.
In a preferred embodiment of the invention, the staple fiber batt is located between the output position of the front leather roller at the output position of the front leather roller and the output position of the second wrapping filament at the front leather roller.
In a third aspect, the present invention also provides a double-filament-wrapped yarn produced by the method of producing a double-filament-wrapped yarn as described above.
Compared with the prior art, the technical scheme provided by the invention has the following characteristics and advantages:
the invention takes dislocation spinning as spinning method, fully utilizes the characteristic of irregular twisting triangle area brought by dislocation spinning to carry out filament winding, and can ensure the sequence and twisting amplitude of twisting two filaments compared with the conventional ring spinning filament winding, thereby achieving the superposition and supplementing effects brought by double-filament double-twisting, further reducing the blind area of winding, increasing the wear-resistant area of filaments, and further reducing hairiness and enhancing wear resistance.
Compared with the existing double-wire wrapping method, the technical advantages of the invention are mainly embodied in the following aspects:
1. the invention utilizes two wrapping filaments to wrap the short fiber strands left and right into yarns, which can further reduce hairiness and enhance wear resistance;
2. on the basis of setting double filament wrapping, the position relation of a twisting triangular area is adjusted by using dislocation spinning, so that the short fiber strips can be twisted with two wrapping filaments successively and then twisted to carry out double wrapping for wrapping superposition and supplement;
3. the twisting triangle area is changed by adjusting the position relation of the two wrapping filaments on the basis of dislocation spinning, so that the required hairiness, hand feeling and wear resistance requirements are balanced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a schematic structural view of an apparatus for producing a double-filament-wrapped yarn according to the present invention.
Reference numerals illustrate:
10. short fiber strands; 11. a first wrapping filament; 12. a second wrapping filament; 13. monofilament wrapping yarns; 14. double-filament wrapping yarn;
20. a first twisting triangle; 21. a second twisting triangle;
30. a roller mechanism; 31. a first godet wheel; 32. a second godet wheel; 33. a front leather roller; 34. and (5) misplacement of the spindle.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, shall fall within the scope of the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
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. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Embodiment one:
as shown in fig. 1, the present invention provides a method for preparing a double-filament-wrapped yarn, comprising:
feeding the short fiber strand 10 as an inner core layer to a spinning device while feeding the first wrapping filaments 11 and the second wrapping filaments 12 to the spinning device from both sides of the short fiber strand 10, respectively;
the first wrapping filaments 11 and the second wrapping filaments 12 are twisted and wrapped on the short fiber strands 10 in sequence by utilizing a dislocation spinning technology, wherein a first twisting triangular area 20 is formed between the short fiber strands 10 and the first wrapping filaments 11 and twisted and wrapped to form monofilament wrapping yarns 13, and a second twisting triangular area 21 is formed between the monofilament wrapping yarns 13 and the second wrapping filaments 12 and twisted and wrapped to form double-filament wrapping yarns 14.
The invention takes dislocation spinning as spinning method, fully utilizes the characteristic of irregular twisting triangle area brought by dislocation spinning to carry out filament winding, and can ensure the sequence and twisting amplitude of twisting two filaments compared with the conventional ring spinning filament winding, thereby achieving the superposition and supplementing effects brought by double-filament double-twisting, further reducing the blind area of winding, increasing the wear-resistant area of filaments, and further reducing hairiness and enhancing wear resistance.
According to one embodiment of the present invention, the first twisting triangle 20 and the second twisting triangle 21 are adjusted to balance hairiness, hand feel, wear resistance requirements required for the yarn by changing the distance between the feeding position of the first wrapping filaments 11, the feeding position of the short fiber strand 10, and the feeding position of the second wrapping filaments 12 when performing the offset spinning.
The twisting triangle area is changed by adjusting the feeding position relationship of the yarns on the basis of dislocation spinning, so that the required hairiness, hand feeling and wear resistance requirements are balanced, and the effective control of the quality of the double-filament wrapped yarns 14 is realized.
Specifically, as shown in FIG. 1, the distance L between the feeding position of the first wrapping filaments 11 and the feeding position of the second wrapping filaments 12 3 5mm to 25mm. The feeding position of the first wrapping filaments 11 and the feeding position of the second wrapping filaments 12 can be adjusted between 5mm and 25mm according to different performance requirements of the actual yarns.
Further, as shown in FIG. 1, the distance between the feeding position of the staple fiber batt 10 and the feeding position of the first wrapping filaments 11 is L 1 The distance between the feeding position of the staple fiber batt 10 and the feeding position of the second wrapping filaments 12 is L 2 Then there is L 1 :L 2 =1:1.5~1:4。
By varying the distance L between the feeding position of the short fiber strand 10 and the feeding position of the first wrapping filaments 11 1 Further, the width and the area of the first twisting triangular region 20 are adjusted, and the generation amount of hairiness when the first wrapping filaments 11 and the short fiber strands 10 are twisted and wrapped is changed. By varying the distance L between the feeding point of the short fiber strand 10 and the feeding point of the second wrapping filaments 12 2 Further, the width and the area of the second twisting triangular region 21 are adjusted, and the amount of hairiness generated when the second wrapping filaments 12 and the monofilament wrapping yarns 13 are twisted and wrapped is changed.
According to one embodiment of the invention, the staple fiber batt 10 is a cotton batt, and the first wrapping filaments 11 and the second wrapping filaments 12 are nylon filaments. In this embodiment, two nylon filaments are selected to perform double filament wrapping on the cotton fiber whisker, wherein the nylon specification is 20D24F, the yarn count of spun yarn is 40S, the right oblique dislocation spinning technology is adopted, the two nylon filaments are distributed on the left side and the right side of the cotton limit whisker, the distance between the left nylon filament and the cotton fiber whisker is 5mm, the distance between the right nylon filament and the cotton fiber whisker is 10mm, and the double filament wrapping yarn 14 of the double nylon wrapped cotton fiber with better quality can be obtained through the spinning scheme.
Embodiment two:
as shown in fig. 1, the present invention also provides a production apparatus for a double-filament-wrapped yarn for carrying out the method for producing a double-filament-wrapped yarn as described in the first embodiment, comprising:
a roller mechanism 30 located at the rear side of the front leather roller 33, and the short fiber strand 10 can be fed into the front leather roller 33 through the drafting of the roller mechanism 30;
the first godet wheel 31 is positioned at one side of the roller mechanism 30, and the first wrapping filament 11 can be fed into the front leather roller 33 by the traction of the first godet wheel 31;
a second godet wheel 32 is located on the other side of the roller mechanism 30 and the second wrapping filament 12 can be fed through the second godet wheel 32 to a front roller 33.
According to the production equipment, the short fiber strand 10, the first wrapping filaments 11 and the second wrapping filaments 12 are respectively pulled before being fed through the roller mechanism 30, the first godet wheel 31 and the second godet wheel 32, and twisting and winding are sequentially completed on the basis of dislocation spinning after passing through the front leather roller 33, so that the double-filament wrapping yarn 14 is formed.
Specifically, as shown in fig. 1, in this embodiment, the production apparatus is modified on a spinning frame. A spinning frame is provided with a godet wheel fixing device, and a first godet wheel 31 and a second godet wheel 32 are respectively arranged on two sides right above a front leather roller 33; wherein the first wrapping filaments 11 are fed to the front leather roller 33 by the traction of the first godet wheel 31 and the second wrapping filaments 12 are fed to the front leather roller 33 by the traction of the second godet wheel 32. The short fiber strand 10 is drawn by a roller mechanism 30 on the spinning frame and then enters a front leather roller 33. The feeding position of the staple fiber batt 10 is located between the feeding position of the first wrapping filament 11 and the feeding position of the second wrapping filament 12, and the output position of the staple fiber batt 10 at the front roller 33 is located between the output position of the first wrapping filament 11 at the front roller 33 and the output position of the second wrapping filament 12 at the front roller 33.
After the staple fiber assembly 10, the first wrapping filaments 11 and the second wrapping filaments 12 are output from the front leather roller 33, the double-filament wrapped yarn 14 formed by twisting and wrapping twice is wound on the dislocation spindle 34.
According to one embodiment of the invention, the first godet wheel 31 and the second godet wheel 32 are movably disposed above the front roller 33 in the axial direction X of the front roller 33. By moving the first godet wheel 31 and the second godet wheel 32 in the axial direction X of the front godet roller 33, the distance between the staple fiber assembly 10, the first wrapping filaments 11, and the second wrapping filaments 12 is further adjusted to produce the double-filament wrapped yarn 14 of different properties.
According to one embodiment of the invention, the distance L between the centre of the first godet wheel 31 and the centre of the second godet wheel 32 is in the axial direction X of the front roller 33 3 5mm to 25mm.
Embodiment III:
the invention also provides a double-filament-wrapped yarn 14, wherein the double-filament-wrapped yarn 14 is produced by the preparation method of the double-filament-wrapped yarn in the first embodiment. The double-filament wrapped yarn 14 produced by the preparation method can meet the requirements of hairiness, hand feeling and wear resistance, and the twice wrapped textures of the first wrapped filaments 11 and the second wrapped filaments 12 have sequential additivity and complementation, so that the double-filament wrapped yarn 14 has better quality.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (10)

1. A method of making a double filament wrapped yarn comprising:
feeding a short fiber strand as an inner core layer into a spinning device, and simultaneously feeding a first wrapping filament and a second wrapping filament into the spinning device from both sides of the short fiber strand;
and twisting and winding the first wrapping filaments and the second wrapping filaments on the short fiber strands in sequence by utilizing a dislocation spinning technology, wherein a first twisting triangular area is formed between the short fiber strands and the first wrapping filaments and is twisted and wound to form monofilament wrapping yarns, and a second twisting triangular area is formed between the monofilament wrapping yarns and the second wrapping filaments and is twisted and wound to form double-filament wrapping yarns.
2. The method according to claim 1, wherein the first twisting triangle and the second twisting triangle are adjusted to balance hairiness, hand feeling, and abrasion resistance required for the yarn by changing the distance between the feeding position of the first wrapping filament, the feeding position of the short fiber strand, and the feeding position of the second wrapping filament when the offset spinning is performed.
3. The method of producing a double wrap yarn according to claim 2, wherein the distance between the feeding position of the first wrap filament and the feeding position of the second wrap filament is 5mm to 25mm.
4. A method of producing a double-filament wrapped yarn according to any of claims 1 to 3 characterised in that the distance between the feeding location of the staple fibre sliver and the feeding location of the first wrapping filaments is L 1 The distance between the feeding position of the short fiber strand and the feeding position of the second wrapping filament is L 2 Then there is L 1 :L 2 =1:1.5~1:4。
5. The method of making a double-filament wrapped yarn according to claim 1 wherein the staple fiber sliver is cotton fiber sliver and the first and second wrapping filaments are nylon filaments.
6. A production apparatus for a double-filament-wrapped yarn, characterized in that it is used to carry out the method for producing a double-filament-wrapped yarn according to any one of claims 1 to 5, comprising:
the roller mechanism is positioned at the rear side of the front leather roller, and the short fiber strands can be fed into the front leather roller through the drafting of the roller mechanism;
the first yarn guiding wheel is positioned at one side of the roller mechanism, and the first wrapping filaments can be fed into the front leather roller through the traction of the first yarn guiding wheel;
the second godet wheel is positioned at the other side of the roller mechanism, and the second wrapping filament can be fed into the front leather roller through the second godet wheel.
7. The apparatus for producing a double-filament-wrapped yarn according to claim 6, wherein the first godet wheel and the second godet wheel are movably disposed above the front godet roller in an axial direction of the front godet roller.
8. The apparatus for producing a double-filament-wrapped yarn according to claim 6 or 7, wherein a distance between a center of the first godet wheel and a center of the second godet wheel in an axial direction of the front leather roller is 5mm to 25mm.
9. The apparatus for producing a double-filament wrapped yarn according to claim 6, wherein the short fiber strand is located between the output position of the first wrapping filament at the front leather roller and the output position of the second wrapping filament at the front leather roller at the output position of the front leather roller.
10. A double-filament-wrapped yarn, characterized in that it is produced by the method for producing a double-filament-wrapped yarn according to any one of claims 1 to 5.
CN202310846302.XA 2023-07-10 2023-07-10 Double-filament wrapped yarn, preparation method thereof and production equipment Pending CN116905146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310846302.XA CN116905146A (en) 2023-07-10 2023-07-10 Double-filament wrapped yarn, preparation method thereof and production equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310846302.XA CN116905146A (en) 2023-07-10 2023-07-10 Double-filament wrapped yarn, preparation method thereof and production equipment

Publications (1)

Publication Number Publication Date
CN116905146A true CN116905146A (en) 2023-10-20

Family

ID=88350415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310846302.XA Pending CN116905146A (en) 2023-07-10 2023-07-10 Double-filament wrapped yarn, preparation method thereof and production equipment

Country Status (1)

Country Link
CN (1) CN116905146A (en)

Similar Documents

Publication Publication Date Title
CN101492843B (en) Positioning spinning method of embedded system
CN100543207C (en) Production method of short staple enveloped composite yarn
CN103498230A (en) Production technology of siro compact spinning covering yarn
CN103276485A (en) Multi-color embedding type section colorful spinning method, and device and product thereof
CN103668628A (en) Processing method for compact Sirofil elastic yarns
CN102936775A (en) Cashmere fiber core-spun composite yarn and preparation method thereof
CN102936776A (en) Preparation method of wool fiber core spun yarn
CN112813555A (en) Production device and production process of color-mixed spun core-spun colored porcelain yarn
CN103668620A (en) Multi-group color separation spinning and crocheting wool yarn and manufacturing method thereof
CN106012166B (en) A kind of Sirofil covering yarn process units and production method
CN112626661B (en) Lodging-resistant yarn, production method thereof and fabric formed by lodging-resistant yarn
CN111893611A (en) One-step method precise strand control strand production device and spinning method
CN203187843U (en) Novel vortex spinning covering yarn
CN217869298U (en) Spinning device of compound line of core-spun and wrapped structure
CN114016177B (en) Production process of core-spun yarn with non-uniform elasticity
CN212505231U (en) Folded yarn production device capable of accurately controlling strand by one-step method
CN116905146A (en) Double-filament wrapped yarn, preparation method thereof and production equipment
CN111926434A (en) Wool worsted fancy yarn core-spun yarn and manufacturing method and device thereof
CN111455505B (en) Short fiber/filament interlacing composite spinning device and method
CN111663218A (en) High-strength vortex spun yarn and production method thereof
CN212357505U (en) High-strength vortex spun yarn
CN212025535U (en) Drafting mechanism for feeding three thick yarns and spinning device
JPH05321063A (en) Production of roving for core yarn
CN211284665U (en) Buncher for improving core-spun effect of roving frame
CN211872201U (en) Production device for producing AB-style bamboo joint roving

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination