CN116971069B - Production method of composite yarn - Google Patents

Production method of composite yarn

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Publication number
CN116971069B
CN116971069B CN202310734722.9A CN202310734722A CN116971069B CN 116971069 B CN116971069 B CN 116971069B CN 202310734722 A CN202310734722 A CN 202310734722A CN 116971069 B CN116971069 B CN 116971069B
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China
Prior art keywords
polyester
viscose
roving
sliver
fibers
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CN202310734722.9A
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Chinese (zh)
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CN116971069A (en
Inventor
吉宜军
崔益怀
杨洋
王俗易
邵国东
鲁进平
苏旭中
刘新金
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Nantong Double Great Textile Co ltd
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Nantong Double Great Textile Co ltd
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Priority to CN202310734722.9A priority Critical patent/CN116971069B/en
Publication of CN116971069A publication Critical patent/CN116971069A/en
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Classifications

    • 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
    • D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

本发明公开了一种复合纱的生产方法，其特征在于，包括以下步骤：(1)原料选配；(2)清梳联；(3)预并条；(4)并条；(5)第一粗纱；(6)第一细纱；(7)第二粗纱；(8)第二细纱。本发明将通过在粗纱工序采用双包缠方式制得包缠复合粗纱，从而在细纱工序一方面实现包缠复合粗纱内的短纤粗纱在外包缠纱控制下的稳定牵伸，从而改善牵伸效果，另一方面实现拉伸后的外包缠纱往牵伸后的短纤须条内的渗透，从而制得包覆效果优异的包芯复合细纱。This invention discloses a method for producing composite yarn, characterized by the following steps: (1) raw material selection; (2) cleaning and carding; (3) pre-drawing; (4) drawing; (5) first roving; (6) first spinning; (7) second roving; (8) second spinning. This invention produces wrapped composite roving by using a double-wrapping method in the roving process. This allows for stable drafting of the short-fiber roving within the wrapped composite roving under the control of the outer wrapping yarn in the spinning process, thereby improving the drafting effect. Simultaneously, it enables the stretched outer wrapping yarn to penetrate into the drafted short-fiber sliver, thus producing a core-spun composite yarn with excellent coating effect.

Description

Production method of composite yarn
Technical Field
The invention relates to the technical field of novel yarns, in particular to a production method of composite yarns.
Background
With the development of social economy, the living standard of people is continuously improved, and as for the textile for clothes, fashion and functionality are increasingly focused, and unique styles and various functions such as antibacterial, antistatic and the like are pursued besides pursuing wearing comfort. To meet this consumer demand, the continued development of new yarns and fabrics is an important task in the textile industry. With the development of scientific technology, the textile market competition is more and more vigorous, and each manufacturer is continuously developed to a high-grade, good-technical content and high added value direction in order to pursue the maximization of profits.
The composite yarn is characterized in that the filament yarn and the staple fiber yarn are adopted for compounding, and then the corresponding composite yarn is obtained, and the yarn effectively integrates the filament yarn and the staple fiber yarn, so that the comprehensive performance of the finished yarn can be effectively improved, the filament yarn and the staple fiber yarn are compounded at present generally comprises a wrapped yarn formed by wrapping the filament yarn outside the staple fiber yarn and a core-spun yarn formed by wrapping the filament yarn inside the staple fiber yarn, and in the production of the two yarns, the staple fiber yarns and the filament yarn output by a drawing system of a spinning frame are compounded through twisting, so that the final composite yarn production is realized through wrapping the filament yarn on the staple fiber yarns or wrapping the staple fiber yarns in the twisting process, namely the filament yarn does not participate in the drawing process of the staple fiber, and therefore, the effect of the filament yarn on the drawing of the staple fiber cannot be effectively exerted.
Disclosure of Invention
The invention aims to provide a production method of composite yarn, which aims to solve the problem that filaments cannot exert drafting effect on short fibers during composite spinning of filaments and short fibers.
The invention provides a production method of composite yarn, which comprises the following steps:
(1) Selecting raw materials, namely adopting terylene and viscose fibers of single mark raw materials, and adding T/R roving strips and T/R mixed strips;
(2) The blowing-carding machine sequentially grabs the selected polyester fibers by a JWF type reciprocating bale plucker with a TF27 type bridge magnet according to a required mixing proportion, simultaneously absorbs and separates metal impurities in the polyester fibers by the bridge magnet after the polyester fibers are grabbed, separates and eliminates blocky impurities in the grabbed polyester fibers by a JWF0001 type multifunctional separator, drives and conveys the polyester fibers to a JWF1026-120 type multi-bin cotton mixer by negative pressure air flow generated by a ZF9104 type fan, realizes feeding and mixing by randomly dropping the conveyed polyester fibers into a plurality of different high-type cotton bins of the multi-bin cotton mixer, conveys the polyester fibers in each cotton bin by different paths after being output by the cotton bins, then recombined to realize output and mixing, further opens and eliminates impurities by a JWF1124D-120 type cotton plucker with a TF34 type iron absorber, prepares a polyester fiber bundle, conveys the prepared polyester fiber bundle to a JWF cotton sliver conveying pipeline after being driven by a ZF9104 type fan, and prepares a cotton sliver conveying ring-shaped cotton sliver winding type 2513;
Sequentially grabbing the selected viscose fibers according to a required mixing proportion by an FA002 type automatic bale plucker, separating and removing metals and blocky impurities in the grabbed viscose fibers by an FA121 metal impurity removing device, randomly conveying the conveyed viscose fibers into a plurality of different high-type cotton bins of the multi-bin bale plucker by an FA022-6 type multi-bin bale plucker to realize feeding and mixing, conveying the viscose fibers in each cotton bin by a cotton bin for random different times, recombining the viscose fibers to realize output and mixing, conveying the viscose fibers continuously into an opener by a cotton conveying pipeline by the adsorption action of a condenser in an FA106A carding beater with an A045B condenser, conveying the viscose fibers continuously into a cotton conveying pipeline by the adsorption action of an A092AST double cotton bin with an A045B condenser to the cotton conveying device, conveying the viscose fibers uniformly into a cotton conveying layer by the cotton conveying machine, conveying the viscose fibers uniformly into a cotton sliver tape, and uniformly spreading the viscose fiber layers by the cotton conveying device to a cotton sliver tape cutter, and then uniformly winding the cotton sliver tape in a cotton sliver tape winding machine, wherein the cotton sliver is manufactured by a cotton sliver winding machine, and the cotton sliver is manufactured into a cotton sliver winding machine JWF;
(3) Pre-drawing, namely pre-drawing the viscose sliver obtained in the step (2) to obtain viscose pre-drawing with improved evenness and adjusted linear density, feeding 7 viscose sliver strips together, drawing the 7 viscose sliver strips together by a drawing system of a drawing frame, and re-combining the drawn viscose sliver strips;
Pre-drawing the polyester sliver obtained in the step (2) to obtain a polyester pre-drawing with improved evenness and adjusted linear density, feeding 7 polyester sliver strips together, drawing the 7 polyester sliver strips fed together by a drawing system of a drawing frame, and re-combining the drawn polyester sliver strips;
(4) Drawing, namely preparing polyester pre-drawing and polyester pre-drawing prepared in the step (3) into polyester pre-drawing by three drawing steps, wherein the first drawing step adopts total 8 viscose pre-drawing and polyester pre-drawing to feed together, the quantity of the viscose pre-drawing and the polyester pre-drawing is determined according to the blending ratio of polyester fibers and viscose fibers in the blended yarn and the linear density of the prepared viscose pre-drawing and polyester pre-drawing, and the 8 viscose pre-drawing and the polyester pre-drawing are drawn by a drawing system of a drawing frame and recombined to prepare the polyester pre-drawing mixed strip;
Feeding 8 polyester-viscose mixed strips in total in the second drawing, drawing the 8 polyester-viscose mixed strips by a drawing system of a drawing frame, and then re-combining to obtain a polyester-viscose semi-finished product;
Feeding 8 polyester-viscose semi-finished products in total in the third drawing, drawing the 8 polyester-viscose semi-finished products by a drawing system of a drawing frame, and then re-merging to obtain the polyester-viscose semi-finished products;
In the drawing process, the speed of a pressing roller of the first drawing and the second drawing is slightly higher than that of a pressing roller of the third drawing;
(5) The first roving is prepared by drawing and thinning the polyester-viscose cooked sliver prepared in the step (4) through a drawing system of the first roving and twisting and winding through a winding system;
(6) The first spun yarn is obtained by drawing and thinning the first polyester viscose roving obtained in the step (5) through a drawing system of the first spun yarn and twisting and winding the first polyester viscose roving through a winding system;
(7) And (2) a second roving: the polyester-viscose spun yarn prepared in the step (4) and 2 first polyester-viscose spun yarns prepared in the step (6) are jointly prepared into polyester-viscose composite roving through a second roving procedure, the roving frame comprises a drafting system and a winding system, the polyester-viscose spun yarn enters the drafting system after being pressed by a rear roller of the drafting system, the polyester-viscose fiber is obtained after the drafting action of the drafting system, the prepared polyester-viscose fiber is continuously and actively output under the driving of a front roller of the drafting system, one first polyester-viscose spun yarn is output after being pressed by the front roller of the drafting system, the pressing point is positioned at the left side of the polyester-viscose fiber, the other first polyester-viscose spun yarn is output after being pressed by the front roller of the drafting system, the pressing point is positioned at the right side of the polyester-viscose fiber, the distance between the first polyester-viscose spun yarn on the left side and the polyester-viscose fiber is equal to the distance between the first polyester-viscose fiber on the right side, under the action of twisting twist generated by a winding system of a roving frame, fibers in the polyester viscose fiber strips generate mutual transfer action so as to generate certain holding and acting force among the fibers, and then the polyester viscose core roving with certain strength is obtained, meanwhile, the first polyester viscose fiber yarns positioned on the left side of the polyester viscose fiber strips are wrapped on the polyester viscose core roving from left to right, the first polyester viscose fiber yarns positioned on the right side of the polyester viscose fiber strips are wrapped on the polyester viscose core roving from right to left, and then the polyester viscose composite roving is obtained, and the wrapping pitch of the two first polyester viscose fiber yarns on the polyester viscose core roving is determined by the twisting twist of the roving frame and the spacing between the first polyester viscose fiber yarns and the polyester viscose fiber strips;
(8) And (3) a second spun yarn, namely, the polyester-viscose composite roving prepared in the step (7) is subjected to a second spun yarn procedure to prepare a core-spun composite spun yarn, the spinning frame comprises a drafting system and a winding system, the polyester-viscose composite spun yarn is pressed by a back roller of the drafting system and then enters the drafting system, under the drafting action of the drafting system, the fibers in the polyester-viscose composite spun yarn are converted from slow motion to fast motion, in the conversion process, as the wrapping action of two first polyester-viscose spun yarns in the polyester-viscose composite spun yarn on the polyester-viscose spun yarn is carried out, the fibers in the polyester-viscose spun yarn are wrapped tightly by the two first polyester-viscose spun yarns, so that the fibers outside the polyester-viscose spun yarn are wrapped tightly by the two first polyester-viscose spun yarns, and stable friction force is generated between the fibers outside the polyester-viscose spun yarn, under the comprehensive control of the first friction force field and the second friction force field, the fibers in the polyester-viscose spun yarn are converted from slow motion to fast motion by the bending motion of the first polyester-viscose spun yarn, and the two polyester-spun yarns are continuously stretched from a bending state to a bending state under the stretching state, and the stretching state is continuously carried out in a bending state, and the stretching state is continuously, and the stretching state is realized, and the two spinning system is continuously in a stretching state is stretched continuously, and the stretching state is in a bending state is carried out, and the stretching state is continuously is in a state in a bending state is in a state and a state that the bending state is not wrapped by the bending state is continuously and a bending state is stretched, the two stretched first polyester-viscose yarns continuously permeate into the polyester-viscose fiber strips under the action of the tension, and are output together with the polyester-viscose fiber strips through the driving action of the front roller of the drafting system, the output polyester-viscose fiber strips permeated with the first polyester-viscose fiber yarns obtain outer wrapping yarns under the action of twisting twist, and meanwhile, the permeated 2 first polyester-viscose fiber strips are further wrapped in the center in the twisting process, so that the required composite spun yarn with the wrapping core is obtained.
Compared with the prior art, the method has the advantages that the first polyester-viscose spun yarn prepared by sequentially passing through the first roving and the first spun yarn through the drawing and mixing process is fed into the drawing system of the roving frame through the back roller in the second roving process, the polyester-viscose fiber is obtained after drawing, the drawing system is driven to output by the front roller of the drawing system, one first polyester-viscose spun yarn is pressed and output by the front roller of the drawing system, the pressing point is positioned at the left side of the polyester-viscose fiber, the other first polyester-viscose spun yarn is pressed and output by the front roller of the drawing system, the pressing point is positioned at the right side of the polyester-viscose fiber, the polyester-viscose fiber is directly twisted to obtain the polyester-viscose roving under the twisting effect, and simultaneously, the two first polyester-viscose spun yarns are wrapped outside the polyester-viscose roving from left to right and from right to left respectively, so that the polyester-viscose composite roving is prepared; in the second spinning procedure, the prepared polyester-viscose composite roving is fed by a back roller of a spinning frame, and in a drafting system, on one hand, the polyester-viscose roving inside the polyester-viscose composite roving is stretched and thinned, and in the stretching process, the fibers in the polyester-viscose roving are stably and intensively changed under the control of the first polyester-viscose spun yarn wrapped outside to obtain polyester-viscose fiber strips, the two first polyester-viscose spun yarns wrapped outside the polyester-viscose composite roving are straightened and permeate into the polyester-viscose fiber strips with certain tension, the outputted polyester-viscose fiber strips permeated with the first polyester-viscose spun yarn are subjected to external wrapping yarn under the action of twisting twist, and meanwhile, the first polyester-viscose spun yarn permeated in the twisting process is further wrapped in the center, so that the required composite spun yarn is obtained. According to the method, the double-wrapping mode is adopted in the roving process to prepare wrapped composite roving, so that stable drafting of the spun roving in the wrapped composite roving is realized under the control of the outer wrapping yarn in the spinning process, the drafting effect is improved, and the penetration of the stretched outer wrapping yarn into the spun yarn after drafting is realized, so that the core-spun composite spun yarn with excellent wrapping effect is prepared.
Detailed Description
The invention provides a production method of composite yarns, which comprises the steps of sequentially carrying out first roving and first spun yarn procedures on a polyester-viscose cooked yarn subjected to drawing and mixing, feeding the polyester-viscose cooked yarn into a back roller of a drafting system of a roving frame in a second roving procedure, and carrying out drafting to obtain the polyester-viscose fiber yarn, wherein a front roller of the drafting system drives and outputs the polyester-viscose fiber yarn, one first polyester-viscose fiber yarn is pressed and outputted by the front roller of the drafting system, a pressing point is positioned at the left side of the polyester-viscose fiber yarn, the other first polyester-viscose fiber yarn is pressed and outputted by the front roller of the drafting system, the pressing point is positioned at the right side of the polyester-viscose fiber yarn, and the polyester-viscose fiber yarn is directly twisted under the twisting action to obtain the polyester-viscose fiber yarn, and simultaneously the two first polyester-viscose fiber yarns are wrapped outside the polyester-viscose fiber yarn from left to right and right to left respectively, so as to obtain the polyester-viscose composite roving; in the second spinning procedure, the prepared polyester-viscose composite roving is fed by a back roller of a spinning frame, and in a drafting system, on one hand, the polyester-viscose roving in the polyester-viscose composite roving is stretched and thinned, and in the stretching process, the fibers in the polyester-viscose roving are stably and intensively changed under the control of the first polyester-viscose spun yarn wrapped outside to obtain polyester-viscose fiber strips, the two first polyester-viscose spun yarns wrapped outside the polyester-viscose composite roving are straightened and permeate into the polyester-viscose fiber strips with certain tension, the outputted polyester-viscose fiber strips permeated with the first polyester-viscose spun yarn are subjected to outer wrapping yarn under the action of twisting twist, and meanwhile, the first polyester-viscose spun yarn permeated in tightly in the twisting process is further wrapped in the center, so that the required composite spun yarn with a core is obtained, and the method comprises the following steps:
(1) The raw material selection is that single mark raw materials are adopted for polyester and viscose fiber to prevent the fluctuation of the whiteness and dyeing property of the fiber, so that the generation of yellow and white yarns or cloth cover crosspieces is avoided, wherein the viscose fiber is made of blue-refined environment-friendly viscose, the added value of the product is improved, the polyester fiber is made of ceremony polyester, and meanwhile, a small amount of T/R roving strips and T/R mixed strips are added for saving the raw materials;
(2) Blowing-carding: sequentially grabbing the selected polyester fibers by a JWF1012 type reciprocating bale plucker with a TF27 type bridge magnet according to a required mixing proportion, realizing primary opening of the polyester fibers in the grabbing process, simultaneously adsorbing and separating metal impurities in the polyester fibers by the bridge magnet after grabbing, separating and removing massive impurities in the grabbed polyester fibers by a JWF0001 type multifunctional separator, conveying the polyester fibers to a JWF1026-120 type multi-bin cotton mixer by the negative pressure air flow generated by a ZF9104 type fan, realizing feeding mixing by randomly dropping the conveyed polyester fibers into a plurality of different high cotton bins of the multi-bin cotton mixer, the method comprises the steps that after being output by a cotton bin, polyester fibers in all cotton bins are conveyed through paths with different distances and recombined to achieve output mixing, opening and impurity removal of the polyester fibers are achieved in the conveying process, further opening and impurity removal are conducted through a JWF1124D-120 type cotton cleaner with a TF34 type iron absorbing device, so that polyester fiber clusters are obtained, the obtained polyester fiber clusters are conveyed to a JWF1204A type cotton carding machine through a cotton conveying pipeline after being driven by a FA051A type condenser+TF 26A type overhead device+ZF 9104 type fan, opening, carding, impurity removal and sliver formation are conducted in the cotton conveying machine in an intensive and careful mode, and therefore polyester cotton slivers are obtained, and are continuously wound in a sliver can through a TF2513 type sliver winding device;
The selected viscose fiber is sequentially grabbed according to the required mixing proportion by an FA002 type automatic bale plucker, the primary opening and mixing of the viscose fiber are realized in the grabbing process, metals and blocky impurities in the grabbed viscose fiber are separated and removed by an FA121 metal impurity removing device, the fed and mixed viscose fiber is randomly dropped into a plurality of different high-type cotton bins of the multi-bin cotton mixer by an FA022-6 type multi-bin cotton mixer, the viscose fiber in each cotton bin is recombined after being output by the cotton bin for realizing the output mixing after being output at random different time, the opening and impurity removal of the viscose fiber are realized in the conveying process, the viscose fiber is continuously conveyed into the cotton opener by a cotton conveying pipeline through the adsorption action of a cotton condenser in a FA106A carding beater with an A045B cotton condenser, after being distributed by an A062 electric cotton distributor, the cotton condenser in the cotton feeder is adsorbed by an A092AST double cotton box with an A045B condenser to realize continuous transmission of viscose fibers from a cotton transmission pipeline to the cotton feeder, and the cotton feeder is opened and decontaminated, and uniformly paved by viscose fibers, and then the uniformly paved viscose fiber layer is transmitted to an FA141 coiling machine, and is opened, decontaminated and homogenized in the coiling machine to obtain uniform viscose rolls, the viscose films are fed to a JWF A carding machine, and are deeply opened, combed, decontaminated and striped in the cotton feeder to obtain terylene combed sliver, and the obtained terylene combed sliver is continuously coiled in a sliver barrel by a TF2513 type sliver coiling machine;
(3) Pre-drawing, namely pre-drawing the viscose sliver obtained in the step (2) to obtain viscose pre-drawing with improved evenness and adjusted linear density, feeding 7 viscose sliver strips together, drawing the 7 viscose sliver strips which are fed together through a drawing system of a drawing frame, straightening fibers in the sliver strips in the drawing and drawing process, so that the fiber straightening degree of the prepared viscose pre-drawing is improved, on the other hand, the adjustment of the linear density of the prepared viscose pre-drawing is realized through drawing, thereby laying a foundation for realizing the accurate blending ratio of two fibers in the subsequent drawing, and re-combining the viscose sliver strips after drawing and drawing, wherein the improvement of evenness of the sliver is realized by random combination of thick knots, details and normal sections in the sliver strips in the combining process;
the polyester sliver obtained in the step (2) is subjected to pre-drawing to obtain the polyester pre-drawing with improved evenness and adjusted linear density, 7 polyester sliver strips are fed together, the 7 polyester sliver strips which are fed together are drawn by a drawing system of a drawing frame, on one hand, the straightening of fibers in the sliver strips is realized in the drawing and thinning process, so that the fiber straightening degree of the obtained polyester pre-drawing is improved, on the other hand, the adjustment of the linear density of the obtained polyester pre-drawing is realized through drawing, so that a foundation is laid for realizing the accurate blending ratio of two fibers in the subsequent drawing, and the drawn polyester sliver strips are recombined, and the improvement of evenness of the sliver is realized by random combination of thick knots, details and normal sections in the sliver strips in the merging process;
(4) Drawing, namely preparing polyester and viscose finished products by jointly carrying out three-way drawing on the viscose pre-drawing and the polyester pre-drawing prepared in the step (3), wherein the first drawing adopts a total of 8 viscose pre-drawing and polyester pre-drawing to be fed together, the quantity of the viscose pre-drawing and the polyester pre-drawing is determined according to the blending ratio of the polyester fibers and the viscose fibers in the blended yarn and the linear density of the prepared viscose pre-drawing and polyester pre-drawing, the 8 viscose pre-drawing and the polyester pre-drawing are subjected to drawing by a drawing system of a drawing frame to be recombined to prepare polyester and viscose mixed products, the mixing of the polyester fibers and the viscose fibers is realized, the second drawing adopts a total of 8 polyester and viscose mixed products to be fed, the 8 polyester and viscose mixed products are recombined to prepare polyester and viscose semi-finished products after being drawn by a drawing system of a drawing frame, the more uniform and refined mixing of the polyester fibers is realized, and the drawing and the refined polyester and the viscose fibers are subjected to uniform mixing after the drawing by a drawing system of the total of 8 polyester and the viscose semi-drawing frame are fed in the third drawing; in the drawing process, the output speed of the press roller is easy to generate static electricity due to the properties of terylene and viscose, so that the phenomenon of winding a roller and a leather roller is easy to occur when the speed is too high, and compared with cotton spinning, the output speed of the press roller is lower, and the speed of the press roller for drawing the first and second channels is slightly higher than that of the press roller for drawing the third channel;
(5) The first roving is prepared by drawing and thinning the polyester-viscose cooked sliver prepared in the step (4) through a drawing system of the first roving and twisting and winding through a winding system;
(6) The first spun yarn is obtained by drawing and thinning the first polyester viscose roving obtained in the step (5) through a drawing system of the first spun yarn and twisting and winding the first polyester viscose roving through a winding system;
(7) And (2) a second roving: the method comprises the steps that 2 first polyester viscose yarns prepared in the step (4) and 2 first polyester viscose yarns prepared in the sixth step are jointly subjected to a second roving procedure to prepare a polyester viscose composite roving, the roving machine comprises a drafting system and a winding system, the polyester viscose yarns enter the drafting system after being pressed by a rear roller of the drafting system, the polyester viscose yarns are obtained after the drafting action of the drafting system, the prepared polyester viscose yarns are continuously and actively output under the driving of a front roller of the drafting system, one first polyester viscose yarn is output after being pressed by the front roller of the drafting system, a pressing point is positioned at the left side of the polyester viscose yarns, the other first polyester viscose yarn is output after being pressed by the front roller of the drafting system, the distance between the left first polyester viscose yarn and the polyester viscose yarns is equal to the distance between the right side of the first polyester viscose yarns, the first polyester viscose yarns and the 2 first polyester viscose yarns are driven by the front roller to be output under the action of the twisting system of the drafting system, the first polyester viscose yarns are transferred under the action of twist degree of the twisting system, and the first polyester viscose yarns are wrapped with certain mutual wrapping force between the first polyester viscose yarns and the right side of the first polyester viscose yarns, and the first polyester viscose yarns are wrapped by the first polyester viscose yarns, and the first polyester viscose yarns are obtained, and the first polyester viscose yarns are wrapped at the right side of the first polyester viscose yarns are wrapped with certain spinning yarns, and the first viscose yarns are wrapped with the first viscose yarns, and the first viscose yarns are obtained;
(8) And (3) a second spun yarn, namely, the polyester-viscose composite roving prepared in the step (7) is subjected to a second spun yarn procedure to prepare a core-spun composite spun yarn, the spinning frame comprises a drafting system and a winding system, the polyester-viscose composite spun yarn is pressed by a back roller of the drafting system and then enters the drafting system, under the drafting action of the drafting system, the fibers in the polyester-viscose composite spun yarn are converted from slow motion to fast motion, in the conversion process, as the wrapping action of two first polyester-viscose spun yarns in the polyester-viscose composite spun yarn on the polyester-viscose spun yarn is carried out, the fibers in the polyester-viscose spun yarn are wrapped tightly by the two first polyester-viscose spun yarns, so that the fibers outside the polyester-viscose spun yarn are wrapped tightly by the two first polyester-viscose spun yarns, and stable friction force is generated between the fibers outside the polyester-viscose spun yarn, under the comprehensive control of the first friction force field and the second friction force field, the fibers in the polyester-viscose spun yarn are converted from slow motion to fast motion by the bending motion of the first polyester-viscose spun yarn, and the two polyester-spun yarns are continuously stretched from a bending state to a bending state under the stretching state, and the stretching state is continuously carried out in a bending state, and the stretching state is continuously, and the stretching state is realized, and the two spinning system is continuously in a stretching state is stretched continuously, and the stretching state is in a bending state is carried out, and the stretching state is continuously is in a state in a bending state is in a state and a state that the bending state is not wrapped by the bending state is continuously and a bending state is stretched, the two stretched first polyester-viscose yarns continuously permeate into the polyester-viscose fiber strips under the action of the tension, and are output together with the polyester-viscose fiber strips through the driving action of the front roller of the drafting system, the output polyester-viscose fiber strips permeated with the first polyester-viscose fiber yarns obtain outer wrapping yarns under the action of twisting twist, and meanwhile, the permeated 2 first polyester-viscose fiber strips are further wrapped in the center in the twisting process, so that the required composite spun yarn with the wrapping core is obtained.
In the embodiment provided by the application, taking the preparation of the composite yarn with the linear density of 8 S as an example, the corresponding technological parameters are as follows:
(1) Raw material selection and matching
(2) Design of key technological parameters
Pre-drawing and drawing:
First roving:
First spun yarn:
and (2) a second roving:
the second spun yarn:

Claims (1)

1.一种复合纱的生产方法，其特征在于，包括以下步骤：1. A method for producing composite yarn, characterized by comprising the following steps: (1)原料选配：采用单唛原料的涤纶和粘胶纤维，加入T/R粗纱条和T/R混合条；(1) Raw material selection: Polyester and viscose fiber with single-mark raw materials are used, and T/R roving and T/R blended yarn are added; (2)清梳联：将选配的涤纶纤维依次经附TF27型桥式磁铁的JWF1012型往复式抓棉机进行按照所需混配比例的抓取，同时在被抓取后经桥式磁铁将其中的金属杂质吸附分离，经JWF0001型多功能分离器经抓取的涤纶纤维中的块状杂质分离清除，经ZF9104型风机的产生的负压气流带动输送至JWF1026-120型多仓混棉机中，通过将输送过来的涤纶纤维随机的落入到多仓混棉机的多个不同的高型棉仓内实现喂入混合，各棉仓内的涤纶纤维经棉仓输出后经不同距离的路径传送后重新汇合实现输出混合，经附TF34型吸铁装置的JWF1124D-120型清棉机进行进一步的开松和除杂，制得涤纶纤维丛，制得的涤纶纤维丛经FA051A型凝棉器+TF26A型高架装置+ZF9104型风机的带动后由输棉管路输送至JWF1204A型梳棉机，制得涤纶梳棉条，制得的涤纶梳棉条经TF2513型圈条器不断的圈绕在条筒内；(2) Combing and Carding: The selected polyester fibers are sequentially picked up by a JWF1012 reciprocating cotton picker equipped with a TF27 type bridge magnet according to the required blending ratio. Simultaneously, after being picked up, the bridge magnet adsorbs and separates metallic impurities. The lumpy impurities in the picked polyester fibers are then separated and removed by a JWF0001 type multi-functional separator. The fibers are then transported to a JWF1026-120 multi-compartment blending machine by negative pressure airflow generated by a ZF9104 type blower. The transported polyester fibers randomly fall into multiple different high-profile cotton bins of the multi-compartment blending machine. The polyester fibers are fed in and mixed. After being output from each cotton bin, they are transported along different paths and then re-merged to achieve output mixing. The fibers are then further opened and cleaned by a JWF1124D-120 cotton cleaner equipped with a TF34 type magnetic magnet to produce polyester fiber bundles. The polyester fiber bundles are then transported by a cotton conveying pipeline to a JWF1204A type carding machine driven by a FA051A type condenser, a TF26A type overhead device, and a ZF9104 type fan to produce polyester carded slivers. The produced polyester carded slivers are then continuously wound into a sliver can by a TF2513 type coiler. 将选配的粘胶纤维依次经FA002型自动抓棉机进行按照所需混配比例的抓取，经FA121除金属杂质装置将抓取的粘胶纤维中的金属以及块状的杂质分离清除，经FA022-6型多仓混棉机将输送过来的粘胶纤维随机的落入到多仓混棉机的多个不同的高型棉仓内实现喂入混合，各棉仓内的粘胶纤维经随机不同的时间由棉仓输出后重新汇合实现输出混合，经附有A045B凝棉器的FA106A梳针打手开棉机内的凝棉器的吸附作用实现粘胶纤维不断的由输棉管路输送至开棉机内，经A062电气配棉器的分配后，经附有A045B凝棉器的A092AST双棉箱给棉机内的凝棉器的吸附作用实现粘胶纤维不断的由输棉管路输送至给棉机内，并经粘胶纤维进行均匀的铺层，均匀铺层的粘胶纤维层随后输送至FA141成卷机中，在成卷机内进行开松、除杂、匀整，制得均匀的粘胶卷，将粘胶卷喂入到JWF1204A型梳棉机，制得粘胶梳棉条，制得的粘胶梳棉条经TF2513型圈条器不断的圈绕在条筒内；The selected viscose fibers are sequentially picked up by an FA002 automatic cotton picker according to the required blending ratio. The FA121 metal impurity removal device separates and removes metal and lumpy impurities from the picked viscose fibers. The viscose fibers are then randomly fed into multiple high-profile cotton bins of an FA022-6 multi-bin blender for mixing. The viscose fibers in each bin are output from the bin at random intervals and then re-merge to achieve final mixing. Finally, the viscose fibers are continuously bleached by the adsorption effect of the condenser in the FA106A carding and beating opener equipped with an A045B condenser. The cotton is conveyed to the cotton opener through the cotton conveying pipeline. After being distributed by the A062 electric cotton distributor, the viscose fiber is continuously conveyed to the cotton feeder through the adsorption effect of the cotton condenser in the A092AST double cotton box cotton feeder equipped with the A045B cotton condenser. The viscose fiber is then evenly laid up and conveyed to the FA141 lap forming machine. In the lap forming machine, the fiber is opened, impurities are removed, and the fiber is evenly smoothed to produce a uniform viscose roll. The viscose roll is then fed into the JWF1204A carding machine to produce a carded viscose sliver. The carded viscose sliver is then continuously wound into the sliver can by the TF2513 coiler. (3)预并条：将步骤(2)制得的粘胶梳棉条经预并条制得条干均匀度改善和线密度调整的粘胶预并条，采用7根粘胶梳棉条共同喂入，共同喂入的7根粘胶梳棉条经并条机的牵伸系统的牵伸拉细，牵伸拉细后的粘胶梳棉条重新并合；(3) Pre-drawing: The viscose carded sliver obtained in step (2) is pre-drawn to obtain viscose pre-drawing with improved evenness and linear density. Seven viscose carded slivers are fed together. The seven viscose carded slivers are drawn thin by the drawing system of the drawing frame. The drawn and thinned viscose carded slivers are then re-drawn. 将步骤(2)制得的涤纶梳棉条经预并条制得条干均匀度改善和线密度调整的涤纶预并条，采用7根涤纶梳棉条共同喂入，共同喂入的7根涤纶梳棉条经并条机的牵伸系统的牵伸拉细，牵伸拉细后的涤纶梳棉条重新并合；The polyester carded sliver obtained in step (2) is pre-drawn to obtain polyester pre-drawn sliver with improved evenness and adjusted linear density. Seven polyester carded slivers are fed together. The seven polyester carded slivers fed together are drawn thin by the drawing system of the drawing machine. The drawn thinned polyester carded slivers are then re-drawn. (4)并条：将步骤(3)制得的粘胶预并条和涤纶预并条共同经三道并条制得涤粘熟条，第一道并条中采用总共8根的粘胶预并条和涤纶预并条共同喂入，其中粘胶预并条和涤纶预并条的数量根据混纺纱中涤纶纤维和粘胶纤维的混纺比以及制得的粘胶预并条和涤纶预并条的线密度确定，8根的粘胶预并条和涤纶预并条经并条机的牵伸系统的牵伸拉细后重新并合制得涤粘混合条；(4) Drawing: The viscose pre-drawing and polyester pre-drawing obtained in step (3) are combined through three drawing processes to obtain a polyester-viscose sliver. In the first drawing process, a total of 8 viscose pre-drawing and polyester pre-drawing are fed in together. The number of viscose pre-drawing and polyester pre-drawing is determined according to the blending ratio of polyester fiber and viscose fiber in the blended yarn and the linear density of the obtained viscose pre-drawing and polyester pre-drawing. The 8 viscose pre-drawing and polyester pre-drawing are drawn and thinned by the drawing system of the drawing frame and then combined again to obtain a polyester-viscose blended sliver. 第二道并条中采用总共8根的涤粘混合条喂入，8根的涤粘混合条经并条机的牵伸系统的牵伸拉细后重新并合制得涤粘半熟条；In the second drawing process, a total of 8 polyester-viscose mixed strips are fed in. After the 8 polyester-viscose mixed strips are drawn thin by the drawing system of the drawing machine, they are re-combined to obtain polyester-viscose semi-cooked strips. 第三道并条中采用总共8根的涤粘半熟条喂入，8根的涤粘半熟条经并条机的牵伸系统的牵伸拉细后重新并合制得涤粘熟条；In the third drawing process, a total of 8 polyester-viscose semi-cooked strips are fed in. After the 8 polyester-viscose semi-cooked strips are drawn thin by the drawing system of the drawing machine, they are re-combined to obtain polyester-viscose cooked strips. 并条过程中，第一道并条以及第二道并条的压辊速度略大于第三道并条的压辊速度；During the drawing process, the speed of the pressure rollers for the first and second drawing passes is slightly greater than that for the third drawing pass. (5)第一粗纱：将步骤(4)制得的涤粘熟条经第一粗纱的牵伸系统的牵伸拉细、卷捻系统的加捻卷绕制得具有一定强力的第一涤粘粗纱；(5) First roving: The polyester roving obtained in step (4) is stretched and thinned by the first roving stretching system and twisted and wound by the twisting system to obtain a first polyester roving with a certain strength. (6)第一细纱：将步骤(5)制得的第一涤粘粗纱经第一细纱的牵伸系统的牵伸拉细、卷捻系统的加捻卷绕制得具有一定强力的第一涤粘细纱；(6) First fine yarn: The first polyester-viscose roving obtained in step (5) is stretched and thinned by the first fine yarn stretching system and twisted and wound by the twisting system to obtain a first polyester-viscose fine yarn with a certain strength. (7)第二粗纱：将步骤(4)制得的涤粘熟条和步骤(6)制得的2根第一涤粘细纱共同经第二粗纱工序制得涤粘复合粗纱，粗纱机包括牵伸系统和卷捻系统，涤粘熟条由牵伸系统的后罗拉按压后进入到牵伸系统内，经牵伸系统的牵伸作用后得到涤粘须条，且制得的涤粘须条经牵伸系统的前罗拉的带动不断的主动输出，一根第一涤粘细纱由牵伸系统的前罗拉的按压后输出，且按压点位于涤粘须条的左侧，另一根第一涤粘细纱由牵伸系统的前罗拉的按压后输出，且按压点位于涤粘须条的右侧，且左侧的第一涤粘细纱与涤粘须条的距离等于右侧的第一涤粘细纱与涤粘须条的距离，经前罗拉带动主动输出的涤粘须条和2根第一涤粘细纱在粗纱机的卷捻系统产生的加捻捻度的作用下，涤粘须条内的纤维发生相互的转移作用从而使得纤维之间产生一定的抱和作用力，继而得到具有一定强力的涤粘芯粗纱，同时位于涤粘须条左侧的第一涤粘细纱由左往右的包缠在涤粘芯粗纱上、位于涤粘须条右侧的第一涤粘细纱由右往左的包缠在涤粘芯粗纱上，继而得到涤粘复合粗纱，且两根第一涤粘细纱在涤粘芯粗纱上的包缠螺距由粗纱机的加捻捻度和第一涤粘细纱与涤粘须条的间距决定；(7) Second roving: The polyester-viscose sliver obtained in step (4) and the two first polyester-viscose yarns obtained in step (6) are used together in the second roving process to produce a polyester-viscose composite roving. The roving machine includes a drafting system and a twisting system. The polyester-viscose sliver is pressed by the back roller of the drafting system and enters the drafting system. After being drafted by the drafting system, a polyester-viscose sliver is obtained. The obtained polyester-viscose sliver is continuously actively output by the front roller of the drafting system. One first polyester-viscose yarn is output after being pressed by the front roller of the drafting system, and the pressing point is located on the left side of the polyester-viscose sliver. The other first polyester-viscose yarn is output after being pressed by the front roller of the drafting system, and the pressing point is located on the right side of the polyester-viscose sliver. The distance between the first polyester-viscose yarn on the left and the polyester-viscose sliver is equal. The distance between the first polyester/viscose yarn and the polyester/viscose sliver on the right side is determined by the twisting of the polyester/viscose sliver and the two first polyester/viscose yarns driven by the front roller. Under the action of the twisting system of the roving frame, the fibers in the polyester/viscose sliver transfer to each other, thereby generating a certain cohesive force between the fibers, resulting in a polyester/viscose core roving with a certain strength. At the same time, the first polyester/viscose yarn on the left side of the polyester/viscose sliver wraps around the polyester/viscose core roving from left to right, and the first polyester/viscose yarn on the right side of the polyester/viscose sliver wraps around the polyester/viscose core roving from right to left, thus obtaining a polyester/viscose composite roving. The wrapping pitch of the two first polyester/viscose yarns on the polyester/viscose core roving is determined by the twisting of the roving frame and the distance between the first polyester/viscose yarn and the polyester/viscose sliver. (8)第二细纱：将步骤(7)制得的涤粘复合粗纱经第二细纱工序制得包芯复合细纱，细纱机包括牵伸系统和卷捻系统，涤粘复合粗纱由牵伸系统的后罗拉按压后进入到牵伸系统内，在牵伸系统的牵伸作用下，涤粘复合粗纱内的涤粘芯粗纱中的纤维发生由慢速运动往快速运动的转变，转变过程中由于涤粘复合粗纱中两根第一涤粘细纱对涤粘芯粗纱的包缠作用使得涤粘芯粗纱内部的纤维之间的抱和较为紧密，从而使得涤粘芯粗纱内部的纤维之间形成稳定的第一摩擦力场，涤粘芯粗纱外部的纤维被两根第一涤粘细纱紧紧包缠，从而使得第一涤粘细纱对涤粘芯粗纱外部的纤维之间产生稳定的摩擦力，从而形成稳定的第二摩擦力场，在第一摩擦力场和第二摩擦力场的综合控制下，实现涤粘复合粗纱内的涤粘芯粗纱中的纤维发生由慢速运动往快速运动的集中变速过程，从而经牵伸系统制得纤维分布一致性优异的涤粘须条，同时，在牵伸系统的后区牵伸作用下，涤粘复合粗纱发生部分的捻度退去作用，从而使得外部包缠的两根第一涤粘细纱由包缠状态逐渐的转变为弯曲的非包缠状态，在牵伸系统的前区牵伸作用下，处于弯曲的两根第一涤粘细纱被由弯曲状态拉伸为伸直状态，且经伸直后继续被拉伸，则发生一定的拉伸伸长，但是没有被拉断，被拉伸伸长的两根第一涤粘细纱从而产生一定的张力，在张力作用下，两根第一涤粘细纱不断的渗透进入到涤粘须条的内部，并与涤粘须条一并经牵伸系统的前罗拉的带动作用输出，输出的渗透有第一涤粘细纱的涤粘须条在加捻捻度的作用下得到外包纱，同时在加捻过程中将渗透进入的2根第一涤粘细纱进一步的包裹在中心，从而得到所需的包芯复合细纱。(8) Second spinning: The polyester-viscose composite roving obtained in step (7) is spun into core-spun composite roving through the second spinning process. The spinning machine includes a drafting system and a twisting system. The polyester-viscose composite roving is pressed into the drafting system by the back roller. Under the drafting action of the drafting system, the fibers in the polyester-viscose core roving of the polyester-viscose composite roving change from slow motion to fast motion. During the change, due to the wrapping effect of the two first polyester-viscose rovings on the polyester-viscose core roving, the fibers inside the polyester-viscose core roving are tightly bound together, thus forming a stable first frictional field between the fibers inside the polyester-viscose core roving. The fibers outside the polyester-viscose core roving are tightly wrapped by the two first polyester-viscose rovings, thus generating a stable frictional force between the first polyester-viscose rovings and the fibers outside the polyester-viscose core roving, thereby forming a stable second frictional field. Under the comprehensive control of the first and second frictional fields, the fibers in the polyester-viscose core roving of the polyester-viscose composite roving change from slow motion to fast motion. The concentrated speed change process produces polyester-viscose slivers with excellent fiber distribution uniformity through the drafting system. Simultaneously, under the drafting action of the rear zone of the drafting system, the twist of the polyester-viscose composite roving is partially reduced, causing the two outer wrapped polyester-viscose yarns to gradually change from a wrapped state to a bent, unwound state. Under the drafting action of the front zone of the drafting system, the two bent polyester-viscose yarns are stretched from a bent state to a straight state, and after straightening, they continue to be stretched, resulting in a certain stretching elongation, but without breaking. The stretched and elongated two polyester-viscose yarns generate a certain tension. Under the action of tension, the two polyester-viscose yarns continuously penetrate into the interior of the polyester-viscose sliver and are output together with the polyester-viscose sliver through the driving action of the front roller of the drafting system. The output polyester-viscose sliver with the penetrating polyester-viscose yarns is twisted to form an outer wrapping yarn. At the same time, during the twisting process, the two penetrating polyester-viscose yarns are further wrapped in the center, thus obtaining the desired core-spun composite yarn.
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