CN114381952A - Warp knitting dyeing and finishing process - Google Patents
Warp knitting dyeing and finishing process Download PDFInfo
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- CN114381952A CN114381952A CN202210136745.5A CN202210136745A CN114381952A CN 114381952 A CN114381952 A CN 114381952A CN 202210136745 A CN202210136745 A CN 202210136745A CN 114381952 A CN114381952 A CN 114381952A
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- dyeing
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- warp knitting
- shaping
- finishing process
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General 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
- D06P1/41—General 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 basic dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General 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
- D06P1/39—General 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 acid dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8219—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and amide groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
- D06P3/8238—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using different kinds of dye
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a warp knitting dyeing and finishing process, which belongs to the technical field of dyeing and finishing processes, and comprises the following steps of S1, shaping; s2, blank detection; s3, desizing; s4, washing with water; s5, dyeing: adding a leveling agent into the dye bath, and controlling the pH value of the dye bath by using an organic acid releasing agent to optimize the dyeing process; s6, dehydrating; s7, flame retardant sizing; s8, napping: controlling the wool height of the cloth according to the production requirement of the product; s9, lustre finishing: in order to improve the appearance quality, improve the applicability of products, adjust the hand feeling of the fabric, enable the fabric calendered surface to be smoother and reduce the gaps among the fabric fibers; s10, shearing: further improving the grade of the product, increasing the added value, keeping certain smoothness and shearing the bulges on the surface of the fabric; s11, rolling, wherein the warp knitting dyeing and finishing process provides a precondition for the nylon warp knitted fabric to be evenly and flatly rolled on a warp beam, and can avoid the nylon fiber fabric from being too greatly contracted, thereby improving the dyeing effect.
Description
Technical Field
The invention belongs to the technical field of dyeing and finishing processes, and particularly relates to a warp knitting dyeing and finishing process.
Background
Weaving processes include weaving (also known as tatting), knitting, braiding, and non-weaving, wherein knitting is further classified into warp knitting and weft knitting. Warp knitting is a textile technology belonging to the field of knitting. Knitted fabrics are formed by simultaneously knitting one or more sets of parallel aligned yarns on all the working needles of a warp feed machine, a process known as warp knitting, and a knitted fabric known as warp knit.
In the prior art, the dyeing and finishing process of the warp-knitted fabric is well developed, but the dyeing and finishing process has some defects: firstly, in order to make the yarn not fluffy when weaving, the yarn before weaving has been starched, so should desize before dyeing to color, dyeing to the cloth lacks the standard nature in the dyeing and finishing technology, thereby has leaded to the difference of the in-process temperature of dyeing easily to appear the colour difference, and dyeing effect is poor.
Disclosure of Invention
The invention aims to provide a warp knitting dyeing and finishing process to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a warp-knitting dyeing and finishing process,
s1, shaping: in order to ensure the size stability of the cloth cover, the fabric is pre-shaped and prepared for dyeing;
s2, blank inspection: blank inspection is mainly used for observing the quality of gray fabric and whether the gray fabric has abnormalities such as drawout, weft block, dead fold, yellow spots, mildew stains and the like;
s3, desizing: adding spandex protective agent BFC with mass concentration of 3g/L into a desizing process, controlling the desizing temperature at 40-80 ℃ and the desizing time at 15 min;
s4, washing: washing with water after desizing;
s5, dyeing: adding a leveling agent in a dye bath, and controlling the pH value by using an organic acid releasing agent to optimize a dyeing process;
s6, dehydration: the water content of the dyed semi-finished product is too high, and the water content of the cloth surface is kept uniform after dehydration, so that preparation is made for the next procedure;
s7, flame-retardant shaping: coating a layer of bonding slurry on the surface of the fabric, then bonding a layer of flame-retardant fabric layer on the upper surface of the bonding slurry, and after flame-retardant shaping, the fabric has stable physical properties and chemical properties;
s8, napping: controlling the wool height of the cloth according to the production requirement of the product;
s9, lustre finishing: in order to improve the appearance quality, improve the applicability of products, adjust the hand feeling of the fabric, enable the fabric calendered surface to be smoother and reduce the gaps among the fabric fibers;
s10, shearing: further improving the grade of the product, increasing the added value, keeping certain smoothness and shearing the bulges on the surface of the fabric;
s11, rolling: checking the quality of the finished product, grading, packaging, rolling and finishing for shipment.
Further, the dyeing temperature in the dyeing process of the step 2 is 95 ℃, and the dyeing flow is 240 m/h.
Further, the temperature in the ironing process of step 6 is controlled at 160 ℃.
Further, the warp knitting fabric layer in the step 1 is formed by knitting 50% of cotton fiber, 40% of polyester and 10% of spandex on a warp knitting machine.
The shaping in the step 1 is a pre-shaping treatment, wherein the pre-shaping temperature is 190 ℃, and the speed of the pre-shaping treatment is 13.7 m/min.
And (4) adding a relaxation agent in the water washing process in the step 4 to keep the surface of the fabric relaxed.
The formula of the relaxant is as follows: 5g/L of alkali, 10g/L of scouring agent and 3g/L of chelating agent, the washing temperature is 80 ℃, and the relaxation speed of the fabric is 13 m/min.
The dyeing treatment in the step 5 uses cationic dye, the cationic polyester yarn is colored, the polyester low stretch yarn is not colored, and the dyeing temperature is 95 ℃.
In the step 8, 7% of raising agent and 1.5% of raising agent are selected for raising.
And (3) shaping the cloth by using shaping equipment in the rolling process in the step 11, wherein the shaping temperature is 130 ℃, the shaping speed is 10m/min, and the overfeeding is 4%.
The warp knitting dyeing and finishing process has the technical effects and advantages that: the high-temperature high-pressure warp beam dyeing machine has the advantages that the size stability of the fabric is good, the fabric is not easy to wrinkle, the cloth surface is smooth, the high-temperature presetting can reduce or eliminate the tension unevenness generated by the nylon fiber in the spinning drafting and weaving processing, the precondition is provided for the uniform and smooth rolling of the density of the nylon warp-knitted cloth onto the warp beam, the excessive shrinkage of the nylon fiber cloth can be avoided, the dye-uptake is improved along with the rise of the dyeing temperature, and the dye-uptake is basically balanced above 95 ℃. Therefore, when the dyeing temperature is determined to be 95 ℃, the dyeing temperature rise rate is slowed down, the polyamide dyeing rate of the acid dye can be slowed down, and the dyeing effect is improved.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to a warp knitting and dyeing and finishing process shown in FIG. 1,
s1, shaping: in order to ensure the size stability of the cloth cover, the fabric is pre-shaped and prepared for dyeing;
s2, blank inspection: blank inspection is mainly used for observing the quality of gray fabric and whether the gray fabric has abnormalities such as drawout, weft block, dead fold, yellow spots, mildew stains and the like;
s3, desizing: adding spandex protective agent BFC with mass concentration of 3g/L into a desizing process, controlling the desizing temperature at 40-80 ℃ and the desizing time at 15 min;
s4, washing: washing with water after desizing;
s5, dyeing: a leveling agent is added in the dye bath, the pH is controlled by an organic acid releasing agent to optimize the dyeing process, the dyeing level difference of the nylon warp-knitted fabric can be effectively controlled, and the dyeing effect is ideal. The warp beam dyeing machine is also called a scroll dyeing machine, and is a high-temperature high-pressure dyeing machine which comprises a dyeing pressure kettle, a hollow warp beam full of small holes, an auxiliary cylinder (a batching barrel), a circulating pump, a heat exchanger, a warp beam transport vehicle and the like, wherein in the dyeing process, fabric is wound on a shaft core with holes in an open width mode, two ends of a cloth roll are hooped by an iron frame to be fixed by the cloth roll, and a professional pump with high lift and large flow is used for enabling dye liquor to penetrate through a fabric layer in a positive direction (from the inside of the shaft core to the outside of the cloth roll) or a reverse direction (from the outside of the cloth roll to the inside of the warp beam) forcibly;
s6, dehydration: the dyed semi-finished product has too high water content, the water content of the cloth surface is kept uniform after dehydration, preparation is made for the next procedure, the dyed warp-knitted napped fabric needs dehydration treatment, after the fabric meets the requirements through inspection and determination, drying is carried out, then carbon brush treatment is carried out on the plain weave face of the fabric, napping treatment is carried out on the extension face of the fabric, and the napped face of the fabric can be full of velvet feeling and smooth in hand feeling through the carbon brush and the napping treatment. This novel warp knitting gigging surface fabric is because the gigging coil shrink is tighter, and the gigging degree of difficulty that is greater than general ordinary gigging cloth, and too big fluff easily arouses vertical retort and broken hole phenomenon with carbon brush pressure, and too light is difficult to gigging and carbon brush again, so through many times of experiments, when chooseing for use 3% raising agent and 2% leavening agent, the fluff is smooth and easy with the carbon brush operation, and the fine hair feels plump after the gigging, and the cloth cover is smooth and comfortable behind the carbon brush. Finally, the warp-knitted gigging fabric is subjected to setting treatment, the setting temperature is 120 ℃, the setting speed is 10m/min, the overfeeding is 10%, the cloth surface of a finished product after setting is smooth, the physical and chemical properties are stable, and the bidirectional elasticity is good;
s7, flame-retardant shaping: coating a layer of bonding slurry on the surface of the fabric, then bonding a layer of flame-retardant fabric layer on the upper surface of the bonding slurry, and after flame-retardant shaping, the fabric has stable physical properties and chemical properties;
s8, napping: controlling the wool height of the cloth according to the production requirement of the product;
s9, lustre finishing: in order to improve the appearance quality, improve the applicability of products, adjust the hand feeling of the fabric, enable the fabric calendered surface to be smoother and reduce the gaps among the fabric fibers;
s10, shearing: further improving the grade of the product, increasing the added value, keeping certain smoothness and shearing the bulges on the surface of the fabric;
s11, rolling: checking the quality of the finished product, grading, packaging, rolling and finishing for shipment.
The power of the main pump directly influences the penetration capability of the dye liquor, the dyeing flow (namely the pump power) is too small, the dye liquor cannot completely penetrate the fabric on the warp beam, and the cloth surface can be subjected to large dyeing or gradual color dyeing; the dyeing flow is increased (namely the pumping power is increased), the difference can be reduced to a certain extent, the movement of dye molecules is accelerated, the diffusion of the dye molecules is facilitated, and the effect of reducing the chromatic aberration of the inner layer and the outer layer is achieved; however, the power of the main pump is too high, which can cause waste of power resources firstly, and then when the dye liquor passes through the dye liquor jet orifice, the pressure of the jet is large, which can cause cloth fleeing, so that the main pump is selected, the main pump has the highest efficiency, the energy consumption is reduced to the lowest, the dyeing flow is increased, and the color difference between the inner layer and the outer layer is reduced; however, the flow is too large, which causes energy waste and is easy to flee and shift, the dyeing flow is 240m/h, and the increase of the dyeing temperature can increase the kinetic energy of dye molecules in the dye bath and on fibers and reduce the aggregation phenomenon of the dye molecules in the dye bath.
Meanwhile, the fiber is promoted to be puffed, so that dye molecules can enter the fiber, and the purpose of uniform and thorough dyeing is achieved. Along with the rise of the dyeing temperature, the dye-uptake is improved, and the dye-uptake is basically balanced at about more than 95 ℃. Therefore, when the dyeing temperature is determined to be 95 ℃, the dyeing temperature rise rate is slowed down, and the polyamide dyeing rate by the acid dye can also be slowed down.
In the dyeing process of the step 2, the dyeing temperature is 95 ℃, and the dyeing flow is 240 m/h.
And 6, controlling the temperature to be 160 ℃ in the process of ironing light.
The warp knitting fabric layer in the step 1 is formed by knitting 50% of cotton fiber, 40% of polyester and 10% of spandex on a warp knitting machine.
The shaping in the step 1 is pre-shaping treatment, wherein the pre-shaping temperature is 190 ℃, and the speed of the pre-shaping treatment is 13.7 m/min.
And 4, adding a relaxation agent in the water washing process in the step 4 to keep the surface of the fabric relaxed.
The formula of the relaxant is as follows: 5g/L of alkali, 10g/L of scouring agent and 3g/L of chelating agent, the washing temperature is 80 ℃, and the relaxation speed of the fabric is 13 m/min.
And 5, dyeing by using a cationic dye, wherein the cationic polyester yarn is dyed, the polyester low-stretch yarn is not dyed, and the dyeing temperature is 95 ℃.
In the step 8, 7 percent of raising agent and 1.5 percent of raising agent are selected for raising.
And 11, sizing the cloth by using sizing equipment in the rolling process, wherein the sizing temperature is 130 ℃, the sizing speed is 10m/min, and the overfeeding is 4%.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A warp knitting dyeing and finishing process is characterized in that:
s1, shaping: in order to ensure the size stability of the cloth cover, the fabric is pre-shaped and prepared for dyeing;
s2, blank inspection: blank inspection is mainly used for observing the quality of gray fabric and whether the gray fabric has abnormalities such as drawout, weft block, dead fold, yellow spots, mildew stains and the like;
s3, desizing: adding spandex protective agent BFC with mass concentration of 3g/L into a desizing process, controlling the desizing temperature at 40-80 ℃ and the desizing time at 15 min;
s4, washing: washing with water after desizing;
s5, dyeing: adding a leveling agent into the dye bath, and controlling the pH value of the dye bath by using an organic acid releasing agent to optimize the dyeing process;
s6, dehydration: the water content of the dyed semi-finished product is too high, and the water content of the cloth surface is kept uniform after dehydration, so that preparation is made for the next procedure;
s7, flame-retardant shaping: coating a layer of bonding slurry on the surface of the fabric, then bonding a layer of flame-retardant fabric layer on the upper surface of the bonding slurry, and after flame-retardant shaping, the fabric has stable physical properties and chemical properties;
s8, napping: controlling the wool height of the cloth according to the production requirement of the product;
s9, lustre finishing: in order to improve the appearance quality, improve the applicability of products, adjust the hand feeling of the fabric, enable the fabric calendered surface to be smoother and reduce the gaps among the fabric fibers;
s10, shearing: further improving the grade of the product, increasing the added value, keeping certain smoothness and shearing the bulges on the surface of the fabric;
s11, rolling: checking the quality of the finished product, grading, packaging, rolling and finishing for shipment.
2. The warp knitting dyeing and finishing process of claim 1, characterized in that: the dyeing temperature in the dyeing process of the step 2 is 95 ℃, and the dyeing flow is 240 m/h.
3. The warp knitting dyeing and finishing process of claim 1, characterized in that: and 6, controlling the temperature to be 160 ℃ in the process of ironing light.
4. The warp knitting dyeing and finishing process of claim 1, characterized in that: the warp knitting fabric layer in the step 1 is formed by knitting 50% of cotton fiber, 40% of polyester and 10% of spandex on a warp knitting machine.
5. The warp knitting dyeing and finishing process of claim 1, characterized in that: the shaping in the step 1 is pre-shaping treatment, wherein the pre-shaping temperature is 190 ℃, and the speed of the pre-shaping treatment is 13.7 m/min.
6. The warp knitting dyeing and finishing process of claim 1, characterized in that: and (4) adding a relaxation agent in the water washing process in the step 4 to keep the surface of the fabric relaxed.
7. The warp knitting dyeing and finishing process of claim 6, characterized in that: the formula of the relaxant is as follows: 5g/L of alkali, 10g/L of scouring agent and 3g/L of chelating agent, the washing temperature is 80 ℃, and the relaxation speed of the fabric is 13 m/min.
8. The warp knitting dyeing and finishing process of claim 1, characterized in that: and in the step 5, cationic dye is used for dyeing, cationic polyester yarns are dyed, the polyester low-stretch yarns are not dyed, and the dyeing temperature is 95 ℃.
9. The warp knitting dyeing and finishing process of claim 1, characterized in that: in the step 8, a 7% raising agent and a 1.5% raising agent are selected for raising.
10. The warp knitting dyeing and finishing process of claim 1, characterized in that: and (3) shaping the cloth by using shaping equipment in the step 11 rolling process, wherein the shaping temperature is 130 ℃, the shaping speed is 10m/min, and the overfeeding is 4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210136745.5A CN114381952A (en) | 2022-02-15 | 2022-02-15 | Warp knitting dyeing and finishing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210136745.5A CN114381952A (en) | 2022-02-15 | 2022-02-15 | Warp knitting dyeing and finishing process |
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| CN114381952A true CN114381952A (en) | 2022-04-22 |
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| CN202210136745.5A Pending CN114381952A (en) | 2022-02-15 | 2022-02-15 | Warp knitting dyeing and finishing process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469467A (en) * | 2013-09-13 | 2013-12-25 | 常熟市乐德维织造有限公司 | Novel warp knitting gigging fabric dyeing and finishing process |
| CN109267373A (en) * | 2018-08-15 | 2019-01-25 | 嘉兴贺奇五金制造有限公司 | A kind of warp-knitted face fabric dyeing |
| CN112853734A (en) * | 2020-12-21 | 2021-05-28 | 海宁市新万年染整有限公司 | Dyeing and finishing process of warp-knitted fabric |
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2022
- 2022-02-15 CN CN202210136745.5A patent/CN114381952A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469467A (en) * | 2013-09-13 | 2013-12-25 | 常熟市乐德维织造有限公司 | Novel warp knitting gigging fabric dyeing and finishing process |
| CN109267373A (en) * | 2018-08-15 | 2019-01-25 | 嘉兴贺奇五金制造有限公司 | A kind of warp-knitted face fabric dyeing |
| CN112853734A (en) * | 2020-12-21 | 2021-05-28 | 海宁市新万年染整有限公司 | Dyeing and finishing process of warp-knitted fabric |
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