CN111647999A - Manufacturing process of high-quality sewing thread - Google Patents

Manufacturing process of high-quality sewing thread Download PDF

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Publication number
CN111647999A
CN111647999A CN202010461537.3A CN202010461537A CN111647999A CN 111647999 A CN111647999 A CN 111647999A CN 202010461537 A CN202010461537 A CN 202010461537A CN 111647999 A CN111647999 A CN 111647999A
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China
Prior art keywords
dyeing
pretreatment
temperature
yarn
sewing thread
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CN202010461537.3A
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Chinese (zh)
Inventor
王政
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Zhejiang Xinchang Gaoge Textile Co ltd
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Zhejiang Xinchang Gaoge Textile Co ltd
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Priority to CN202010461537.3A priority Critical patent/CN111647999A/en
Publication of CN111647999A publication Critical patent/CN111647999A/en
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    • 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
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/46Sewing-cottons or the like
    • 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
    • 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
    • D02G3/36Cored or coated yarns or threads
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • D06B3/09Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments as packages, e.g. cheeses
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/16General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/445Use of auxiliary substances before, during or after dyeing or printing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82Textiles which contain different kinds of fibres
    • D06P3/8204Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8223Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
    • D06P3/8228Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye
    • D06P3/8233Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye using dispersed dyes
    • 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
    • D10B2331/04Fibres 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]

Abstract

The invention discloses a manufacturing process of a high-quality sewing thread, which comprises the following steps: (1) blowing and carding; (2) drawing; (3) roving; (4) spinning; (5) core-spun treatment: twisting and winding the polyester filament yarns and the drafted short fiber strands to form polyester-polyester core-spun yarns; (6) single yarn spooling; (7) doubling; (8) twisting: processing the doubled yarn into a folded yarn with the required twist direction and twist; (9) winding and loosening the folded yarn: the winding density of the cheese is 0.30-0.32 g/cm 3; (10) dyeing pretreatment: preparing a pretreatment liquid, adding the cheese and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 50-60 min, cooling to 75 ℃ after the pretreatment is finished, discharging liquid, and cleaning with hot water; (11) dyeing: and cooling the cleaned cheese to 50 ℃, sequentially adding a disperse dye, a dispersing agent, a leveling agent, a buffering agent, a chelating agent and glacial acetic acid, keeping the temperature at 50 ℃ for 10min, and then heating the cheese to 130 ℃ and keeping the temperature for 50 min.

Description

Manufacturing process of high-quality sewing thread
Technical Field
The invention relates to the technical field of sewing thread production and processing, in particular to a manufacturing process of a high-quality sewing thread.
Background
Sewing thread refers to thread used for sewing textile materials, plastics, leather products, books and periodicals, etc. The sewing thread has the characteristics of sewability, durability, flatness, beauty and no shrinkage. Sewing threads are generally classified into: natural fiber type, chemical fiber type, and mixed type. With the development of the polyester industry, sewing threads are increasingly made of pure polyester fibers, and the produced sewing threads have the advantages of high strength, good wear resistance, low shrinkage, good moisture absorption and heat resistance, corrosion resistance, difficulty in mildew and rot, no worm damage and the like.
However, the common polyester sewing thread produced by the existing sewing thread production process has poor strength, the phenomena of fluffing and thread breakage can occur when the common polyester sewing thread is applied to fabrics such as jeans and the like, and the heat resistance and the tensile property are poor; in order to improve the production efficiency of a factory, a combination machine is adopted for production, the working procedures are reduced, the quality control is not as good as that of a single machine in the production process, and the quality of sewing threads is poor. In addition, most of dyeing processes of polyester cotton sewing threads adopt a reactive dye bath method for dyeing, and after the polyester cotton sewing threads dyed by the method are applied to jean series products and subjected to a series of treatments such as washing, polishing and chlorine bleaching, various fastness indexes are reduced, such as the washing fastness is seriously reduced, and adverse effects are brought to the product quality.
Disclosure of Invention
The invention aims to provide a manufacturing process of a high-quality sewing thread, and the produced sewing thread has better strength compared with a common polyester sewing thread and can simultaneously have good low shrinkage performance and tensile property; in addition, the production method can more conveniently control the quality of the sewing threads and improve the dyeing quality, on one hand, the quality of the sewing threads is improved, and on the other hand, the washing fastness after dyeing is improved.
The technical purpose of the invention is realized by the following technical scheme: a manufacturing process of high-quality sewing threads is characterized in that: the method comprises the following steps:
(1) blowing and carding: spinning polyester slices to form short fibers, pouring the short fibers into a turntable, disordering and mutually combining originally regular fibers to form a roll-shaped fiber block, and continuously carding large-block wound fibers by a carding machine;
(2) drawing: the fiber strips are subjected to head doubling and two-in-two drawing by a drawing frame to be spliced into small strips;
(3) roving: making a roving strip through a roving machine;
(4) spinning: the roving slivers are normally drafted through a spinning frame, and the required count of the strip fibers is adjusted;
(5) core-spun treatment: twisting and winding the polyester filament yarns and the drafted short fiber strands to form polyester-polyester core-spun yarns;
(6) single yarn spooling: the core-spun yarn is wound by an automatic winder to form a cone yarn I;
(7) doubling: winding 2-5 cone yarns into a doubling yarn by a tensioner;
(8) twisting: processing the doubled yarn into a folded yarn with the required twist direction and twist;
(9) winding and loosening the folded yarn: the compound yarn is wound by a loose bobbin winder to form a bobbin yarn II, so that the inner gap of the bobbin is uniform, and the winding density of the bobbin yarn is 0.30-0.32 g/cm 3;
(10) dyeing pretreatment: preparing a pretreatment liquid, adding the cheese and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 50-60 min, cooling to 75 ℃ after the pretreatment is finished, discharging liquid, and cleaning with hot water;
(11) dyeing: cooling the cleaned cheese to 50 ℃, sequentially adding disperse dye, dispersant, leveling agent, buffer, chelating agent and glacial acetic acid, keeping the temperature at 50 ℃ for 10min, and then heating the cheese to 130 ℃ and keeping the temperature for 50 min;
(12) dewatering and drying: dehydrating through a centrifugal machine after dyeing is finished, and drying at the drying temperature of 70-80 ℃;
(13) shaping: and putting the dried cheese into a setting furnace for setting.
By adopting the technical scheme, short fiber and impurity are removed by blowing and carding, fiber damage is reduced, fibers are reasonably carded, and the separation degree, the straightness and the orientation degree of the fibers are improved as much as possible; the core-spun treatment ensures that the polyester staple fibers are coated with the polyester filaments, so that the sewing thread has good low shrinkage performance of the polyester staple fibers, and the tensile resistance of the sewing thread is enhanced by adding the polyester filaments, so that the sewing thread can be durable. The dyeing pretreatment can improve the dyeing speed and uniformity and reduce the dyeing inferior-quality products. The slow temperature rise during dyeing is beneficial to full reaction of all components in the solution and improvement of the dye uptake, and in addition, the residual alkaline liquid in the yarns is cleaned after dyeing is finished, so that the sewing threads are prevented from being corroded by alkali in the using process. Each procedure is produced independently, the quality control is convenient, and the produced sewing thread has better quality.
The invention is further configured to: the pretreatment liquid in the dyeing pretreatment in the step (10) is a mixed solution of hydrogen peroxide, NaOH and HAc, and the bath ratio in the dyeing pretreatment process is 1: 8.
Through the technical scheme, the dyeing speed and the dyeing uniformity are improved, and dyeing inferior-quality products are reduced.
The invention is further configured to: the concentration of hydrogen peroxide in the pretreatment liquid is 3.5g/L, the concentration of NaOH is 1g/L, and the concentration of HAc is 1 g/L.
Through the technical scheme, the hydrogen peroxide can remove the sizing agent on the grey cloth to oxidize the sizing agent, and acid is not released during hydrogen peroxide desizing, so that the dyeing speed and the dyeing uniformity are improved, and the phenomenon that a finished product is seriously faded after being washed by water is prevented.
The invention is further configured to: and (3) in the dyeing pretreatment in the step (10), the pump speed of a dyeing machine during pretreatment is 80-100%, the hot water cleaning time is 20min after the pretreatment is finished, and after the hot water cleaning is finished, an alkali removing agent is added at room temperature for neutralization and overflow water cleaning is carried out for 10 min.
Through the technical scheme, the internal flow and the external flow of the pretreatment liquid reach higher speed, and the pretreatment liquid can be fully contacted with the surface of the fiber.
The invention is further configured to: the buffer in the step (11) dyeing is NaAc solution, and the concentration of the NaAc solution is 1.0 g/L.
By the technical scheme, the pH value of the solution is controlled by utilizing the action of the NaAc solution on H + or OH < - >, so that the pH value of the solution is basically stable.
The invention is further configured to: and (3) the pH value in the dyeing process of the step (11) is 4.1-5.6.
Through the technical scheme, the stability of the dye can be kept within the pH range, and the phenomenon of disordered colors during dyeing is avoided.
The invention is further configured to: in the dyeing step (11), in the process of raising the temperature to 130 ℃, the temperature raising rate is 3-5 ℃/min when the temperature is raised to 70 ℃ from the beginning, the rate is 1.5-2 ℃/min when the temperature is raised to 70 ℃, the rate is 0.5-1 ℃/min when the temperature is raised to 100-130 ℃, and the temperature is maintained for 50-60 min when the temperature is raised to 130 ℃.
Through the technical scheme, the slow temperature rise is beneficial to full reaction of all components in the solution and improvement of the dye uptake.
The invention is further configured to: and (3) in the step (13), the gas opening time of the shaping furnace is 15min, the temperature during shaping is 100-120 ℃, and the heat preservation time is 20 min.
Through above-mentioned technical scheme, the condition of rolling up can be prevented to the sewing thread in the setting when using.
The invention is further configured to: and (3) after the dyeing in the step (11) is finished, carrying out acid neutralization cleaning treatment.
Through the technical scheme, the residual alkaline liquid in the yarns is cleaned, and the sewing threads are prevented from being corroded by alkali in the using process.
The invention is further configured to: the acid neutralization cleaning treatment process comprises the steps of adding glacial acetic acid at room temperature, heating to 50 ℃, and keeping the temperature for 10min, wherein the concentration of the glacial acetic acid is 0.5 g/L.
By adopting the technical scheme, glacial acetic acid is taken as an organic acid as a neutralizer of alkali, and the pH value can be well adjusted.
Drawings
FIG. 1 is a flow chart of the manufacturing process of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention is described below with reference to fig. 1.
A manufacturing process of high-quality sewing threads is characterized in that: the method comprises the following steps:
(1) blowing and carding: spinning polyester slices to prepare short fibers, pouring the short fibers into a rotary table, disordering and mutually combining originally regular fibers to form a roll-shaped fiber block, and continuously carding large wound fibers by adopting a DK760 type carding machine. Short fibers and impurities are eliminated, fiber damage is reduced, fibers are reasonably combed, and the separation degree, the straightening degree and the orientation degree of the fibers are improved as much as possible.
(2) Drawing: the slivers are pieced into small strips through a D0/2 type drawing frame and two-way drawing. The drawing can reduce the uneven degree of the weight of the material and improve the straightening parallelism of the fiber, thereby leading the produced sewing thread to have better quality.
(3) Roving: the roving is made by a roving machine of FA422-12 type.
(4) Spinning: and (4) carrying out normal drafting on the roving sliver by an FA516 spinning machine, and adjusting the sliver fiber into the required count. Spun yarns have better strength, elasticity and gloss than roving yarns.
(5) Core-spun treatment: the polyester filament and the drafted short fiber strands are twisted and wound to form the polyester-polyester core-spun yarn. The short fiber is drafted on an FA516 type spinning machine, the polyester filament moves to a front roller through a filament guiding mechanism of the spinning machine and is converged with the short fiber at a jaw, and the polyester filament is twisted and wound to form the polyester-polyester core-spun yarn. The polyester staple fibers are coated with the polyester filament yarns, so that the sewing thread has good low shrinkage performance of the polyester staple fibers, and the tensile resistance of the sewing thread is enhanced by adding the polyester filament yarns, so that the sewing thread can be durable.
(6) Single yarn spooling: the core-spun yarn is wound by an automatic winder to form a cone yarn I.
(7) Doubling: 2-5 cone yarns are packaged into a doubling yarn through a tensioner, the doubling yarn can be prepared for twisting, the number of strands of the yarn for twisting is ensured, and the strength of the plied yarn is improved.
(8) Twisting: the doubled yarn is processed into the plied yarn with the needed twist direction and twist, and the density of the yarn is increased so as to meet the requirement of subsequent processing.
(9) Winding and loosening the folded yarn: the compound yarn is wound by a loose bobbin winder to form a bobbin yarn II, so that the inner gap of the bobbin is uniform, and the winding density of the bobbin yarn is 0.30-0.32 g/cm3, thereby ensuring the level-dyeing property of the yarn during dyeing.
(10) Dyeing pretreatment: preparing a pretreatment liquid, wherein the pretreatment liquid is a mixed solution of hydrogen peroxide, NaOH and HAc, the concentration of the hydrogen peroxide in the pretreatment liquid is 3.5g/L, the concentration of the NaOH is 1g/L, and the concentration of the HAc is 1 g/L. And the bath ratio in the dyeing pretreatment process is 1: 8. And adding the cheese and the pretreatment liquid into a dyeing machine, heating to 100 ℃, and carrying out pretreatment for 50-60 min to ensure that the pretreatment process is full. The pumping speed of the dyeing machine is 80-100% during pretreatment, so that the internal flow and the external flow of the dyeing machine reach higher speeds, and the pretreatment liquid can be fully contacted with the surface of the fiber. After the pretreatment is finished, cooling to 75 ℃, discharging liquid, and cleaning with hot water; and after the pretreatment is finished, the hot water cleaning time is 20min, and after the hot water cleaning is finished, an alkali removing agent is added at room temperature for neutralization and overflow water cleaning is carried out for 10 min.
(11) Dyeing: and cooling the cleaned cheese to 50 ℃, and then sequentially adding a disperse dye, a dispersing agent, a leveling agent, a buffering agent, a chelating agent and glacial acetic acid, wherein the buffering agent is a NaAc solution, and the concentration of the NaAc solution is 1.0 g/L. The pH value is 4.1-5.6 in the dyeing process, and the over-high and over-low are not beneficial to dye absorption and color light stability. The treatment temperature was maintained at 50 ℃ for 10min, after which it was warmed to 130 ℃ and maintained for 50 min. In the process of raising the temperature to 130 ℃ in the dyeing process, the temperature raising rate is 3-5 ℃/min when the temperature is raised to 70 ℃ from the beginning, the rate is 1.5-2 ℃/min when the temperature is raised to 70 ℃, the rate is 0.5-1 ℃/min when the temperature is raised to 130 ℃, the temperature is kept for 50-60 min when the temperature is raised to 130 ℃, the temperature is slowly raised, the full reaction of each component in the solution is facilitated, and the dye uptake is facilitated to be improved. And after dyeing is finished, acid neutralization and cleaning treatment is carried out, wherein glacial acetic acid is added at room temperature, the temperature is raised to 50 ℃, the temperature is kept for 10min, the concentration of the glacial acetic acid is 0.5g/L, residual alkaline liquid in the yarns is cleaned, and the sewing threads are prevented from being corroded by alkali in the using process.
(12) Dewatering and drying: and (4) dehydrating through a centrifugal machine after dyeing is finished, and drying at the drying temperature of 70-80 ℃.
(13) Shaping: and putting the dried cheese into a setting furnace for setting. And (3) in the step (13), the gas opening time of the shaping furnace is 15min, the temperature during shaping is 100-120 ℃, and the heat preservation time is 20 min.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.

Claims (10)

1. A manufacturing process of high-quality sewing threads is characterized in that: the method comprises the following steps:
(1) blowing and carding: spinning polyester slices to form short fibers, pouring the short fibers into a turntable, disordering and mutually combining originally regular fibers to form a roll-shaped fiber block, and continuously carding large-block wound fibers by a carding machine;
(2) drawing: the fiber strips are subjected to head doubling and two-in-two drawing by a drawing frame to be spliced into small strips;
(3) roving: making a roving strip through a roving machine;
(4) spinning: the roving slivers are normally drafted through a spinning frame, and the required count of the strip fibers is adjusted;
(5) core-spun treatment: twisting and winding the polyester filament yarns and the drafted short fiber strands to form polyester-polyester core-spun yarns;
(6) single yarn spooling: the core-spun yarn is wound by an automatic winder to form a cone yarn I;
(7) doubling: winding 2-5 cone yarns into a doubling yarn by a tensioner;
(8) twisting: processing the doubled yarn into a folded yarn with the required twist direction and twist;
(9) winding and loosening the folded yarn: the compound yarn is wound by a loose bobbin winder to form a bobbin yarn II, so that the inner gap of the bobbin is uniform, and the winding density of the bobbin yarn is 0.30-0.32 g/cm 3;
(10) dyeing pretreatment: preparing a pretreatment liquid, adding the cheese and the pretreatment liquid into a dyeing machine, heating to 100 ℃, carrying out pretreatment for 50-60 min, cooling to 75 ℃ after the pretreatment is finished, discharging liquid, and cleaning with hot water;
(11) dyeing: cooling the cleaned cheese to 50 ℃, sequentially adding disperse dye, dispersant, leveling agent, buffer, chelating agent and glacial acetic acid, keeping the temperature at 50 ℃ for 10min, and then heating the cheese to 130 ℃ and keeping the temperature for 50 min;
(12) dewatering and drying: dehydrating through a centrifugal machine after dyeing is finished, and drying at the drying temperature of 70-80 ℃;
(13) shaping: and putting the dried cheese into a setting furnace for setting.
2. A process for producing a high quality sewing thread according to claim 1, wherein: the pretreatment liquid in the dyeing pretreatment in the step (10) is a mixed solution of hydrogen peroxide, NaOH and HAc, and the bath ratio in the dyeing pretreatment process is 1: 8.
3. A process for producing a high quality sewing thread according to claim 2, wherein: the concentration of hydrogen peroxide in the pretreatment liquid is 3.5g/L, the concentration of NaOH is 1g/L, and the concentration of HAc is 1 g/L.
4. A process for producing a high quality sewing thread according to claim 1, wherein: and (3) in the dyeing pretreatment in the step (10), the pump speed of a dyeing machine during pretreatment is 80-100%, the hot water cleaning time is 20min after the pretreatment is finished, and after the hot water cleaning is finished, an alkali removing agent is added at room temperature for neutralization and overflow water cleaning is carried out for 10 min.
5. A process for producing a high quality sewing thread according to claim 1, wherein: the buffer in the step (11) dyeing is NaAc solution, and the concentration of the NaAc solution is 1.0 g/L.
6. A process for producing a high quality sewing thread according to claim 1, wherein: and (3) the pH value in the dyeing process of the step (11) is 4.1-5.6.
7. A process for producing a high quality sewing thread according to claim 1, wherein: in the dyeing step (11), in the process of raising the temperature to 130 ℃, the temperature raising rate is 3-5 ℃/min when the temperature is raised to 70 ℃ from the beginning, the rate is 1.5-2 ℃/min when the temperature is raised to 70 ℃, the rate is 0.5-1 ℃/min when the temperature is raised to 100-130 ℃, and the temperature is maintained for 50-60 min when the temperature is raised to 130 ℃.
8. A process for producing a high quality sewing thread according to claim 1, wherein: and (3) in the step (13), the gas opening time of the shaping furnace is 15min, the temperature during shaping is 100-120 ℃, and the heat preservation time is 20 min.
9. A process for producing a high quality sewing thread according to claim 1, wherein: and (3) after the dyeing in the step (11) is finished, carrying out acid neutralization cleaning treatment.
10. A process for producing a high quality sewing thread as claimed in claim 9, wherein: the acid neutralization cleaning treatment process comprises the steps of adding glacial acetic acid at room temperature, heating to 50 ℃, and keeping the temperature for 10min, wherein the concentration of the glacial acetic acid is 0.5 g/L.
CN202010461537.3A 2020-05-27 2020-05-27 Manufacturing process of high-quality sewing thread Pending CN111647999A (en)

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CN109505150A (en) * 2018-12-13 2019-03-22 福建省天和纺织实业有限公司 A kind of Polyester Yarns dyeing
CN109577029A (en) * 2018-12-11 2019-04-05 徐州美亚纺织有限公司 A kind of environmental protection dope dyeing technique
CN110699989A (en) * 2019-10-25 2020-01-17 嘉兴市秀洲恒丰纺织有限公司 Dyeing, moisturizing and finishing process for thin polyester fabric

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Publication number Priority date Publication date Assignee Title
CN101302674A (en) * 2007-05-10 2008-11-12 上海七棉协联纱线有限公司 Terylene covered sewing thread and preparation thereof
KR20120132739A (en) * 2011-05-30 2012-12-10 한국니트산업연구원 Method for dyeing polyester fabrics including inorganic material
CN108951229A (en) * 2018-06-20 2018-12-07 福建石狮晨光化纤染织有限公司 A kind of dyeing of terylene
CN109577029A (en) * 2018-12-11 2019-04-05 徐州美亚纺织有限公司 A kind of environmental protection dope dyeing technique
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Application publication date: 20200911