CN115287915A - Dyeing and finishing process for nylon-cotton knitted elastic fabric - Google Patents
Dyeing and finishing process for nylon-cotton knitted elastic fabric Download PDFInfo
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- CN115287915A CN115287915A CN202210944410.6A CN202210944410A CN115287915A CN 115287915 A CN115287915 A CN 115287915A CN 202210944410 A CN202210944410 A CN 202210944410A CN 115287915 A CN115287915 A CN 115287915A
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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
- D06P1/38—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 reactive dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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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
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
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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
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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
- 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
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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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
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Abstract
The invention discloses a dyeing and finishing process of nylon-cotton knitted elastic cloth, which relates to the dyeing and finishing of blended fabrics and aims to solve the defects that the nylon and cotton fibers have different structures and performances and the product is easy to wrinkle and deform in the dyeing and finishing process, and is easy to generate colored patterns and color differences during dyeing, and the like, and the technical scheme has the key points that: the dyeing processing for the nylon-cotton blended grey cloth comprises the following processing steps: s1, pre-shaping, namely, unwinding and inspecting the gray fabric, and shaping the gray fabric by a high-temperature shaping machine with the width equal to that of the gray fabric. The invention eliminates the problem that the gray fabric is easy to wrinkle and deform in the subsequent dyeing and finishing process by presetting, simultaneously reduces the pressure of deoiling the gray fabric in the pretreatment process, shortens the processing time of fabric finishing, carries out cotton dyeing operation firstly, dyes cotton components in the nylon-cotton fabric at the temperature of 60 ℃ by using reactive dyes, has good dye-uptake and fixation rate, and overcomes the condition that the gray fabric is easy to have smooth color and color difference in the dyeing stage.
Description
Technical Field
The invention relates to blended fabric dyeing and finishing, in particular to a brocade cotton knitted elastic fabric dyeing and finishing process.
Background
The printing and dyeing industry is a key industry for carrying out deep processing and fine processing on textiles, improving the grade and the added value of products and providing high-quality textile materials for clothing, decoration and industry for the market. The textile industry market in China has been global, and innovative ideas and bold attempts are made to hold the time. People have higher and higher requirements on life quality, especially more attention is paid to the quality of textiles such as clothes, home textiles and the like, and meanwhile, the demand is also increased continuously. The method has great demand on high-grade western-style clothes fabrics, leisure fabrics and sports fabrics, and promotes the upgrading of the quality of products.
The cotton-nylon weft elastic fabric is an elastic fabric formed by interweaving nylon and spandex core-spun yarns in the warp direction and the weft direction. The fabric has the advantages of two kinds of nylon and cotton fibers and has the defect of complementation. The fabric processed by dyeing and finishing has the styles of brightness, smoothness and elegance, and is a very popular garment fabric in the current market.
But because of the difference of the structure and the performance of the nylon and the cotton, and the defects that the product is very easy to wrinkle and deform in the dyeing and finishing process, and color flowers, color differences and the like are easy to generate in the dyeing process.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a brocade cotton knitted elastic fabric dyeing and finishing process.
The technical purpose of the invention is realized by the following technical scheme: a brocade cotton knitting stretch fabric dyeing and finishing process is used for dyeing and processing brocade cotton blended gray fabric, and the processing steps comprise:
s1, presetting, namely, unwinding and inspecting grey cloth, and then setting the grey cloth by a high-temperature setting machine at a width equal to the width of the grey cloth;
s2, preprocessing, namely adding a deoiling agent into a deoiling washing machine, uniformly mixing, heating to 90 ℃, adding grey cloth, and washing for 10min at constant temperature;
s3, dyeing cotton, preparing a dye solution, then putting the pretreated grey cloth into a machine cylinder, raising the temperature to 60 ℃ at a constant speed, and keeping the temperature for 45-60min;
s4, cleaning;
s5, soaping, namely adding a soaping agent, heating to 80 ℃ at a constant speed, and then soaping for 15-20min;
s6, dyeing brocade, preparing an acid dye solution, putting the soaped grey cloth into a machine cylinder, heating to 90 ℃, and dip-dyeing for 30-45min;
s7, washing with water, namely continuously rinsing the gray fabric subjected to the step of brocade dyeing through a plain washing tank;
s8, dehydrating, namely squeezing and dehydrating the washed grey cloth, and then drying;
s9, shaping, namely shaping the gray fabric according to the width requirement and the gram weight of the gray fabric;
and S10, checking.
By adopting the technical scheme, the grey cloth is pre-shaped, the grey cloth can be kept neat, wrinkles on the surface of the grey cloth are eliminated, the dyeing and finishing effect of the grey cloth is improved, the problems of uneven dyeing and the like caused by the wrinkles are solved, the grey cloth is shaped by adopting a high-temperature mode, oil and water added during weaving the grey cloth can be vaporized during shaping through high temperature, the oil content of the grey cloth is reduced, the pressure of deoiling the grey cloth in the pretreatment process is reduced, the processing time of fabric finishing is shortened, then cotton dyeing operation is carried out firstly, cotton components in the nylon-cotton fabric are dyed by using active dye at the temperature of 60 ℃, and the nylon-cotton fabric has good dyeing rate and color fixing rate.
The invention is further configured to: the specific steps of the cotton dyeing method comprise:
s31, preparing a dye solution, selecting a dye with a vinyl sulfone structure, and operating for 10 minutes;
s32, preparing an alkaline agent, adding anhydrous sodium sulphate and a soda solution into the dye solution, heating the dye solution to 60 ℃ at the speed of 1 ℃/min, and running for 20-25min;
s33, performing heat preservation and color fixation, wherein the temperature of the constant heat preservation dye is 60 ℃, and performing heat preservation for 15-25min for color fixation.
By adopting the technical scheme, the dye with the vinyl sulfone structure is selected to dye cotton components in the grey cloth of the nylon-cotton fabric, so that the nylon-cotton fabric has good dye-uptake rate when being dyed with cotton, meanwhile, the colors of nylon and cotton fibers can be compensated mutually in the process of over-dyeing, and the color of the cloth cover of the grey cloth is easy to adjust and control.
The invention is further configured to: the specific steps of the cleaning are as follows: adding 0.5-2 g/L of chelating dispersant into clear water, then adding 0.5-1L of anti-staining cleaning agent, and finally soaking the grey cloth after the cotton dyeing treatment into a cleaning tank for continuous cleaning.
By adopting the technical scheme, 0.5-2 g/L of chelating dispersant is added into the diving water to soften the clear water for cleaning, and 0.5-1L of anti-staining cleaning agent is added to eliminate the problem that the residual dye is re-stained on the surface of the grey cloth in the cleaning process, improve the cleaning effect and shorten the cleaning period and the use time.
The invention is further configured to: the brocade dyeing method comprises the following specific steps:
s61, preparing an acid dye solution, and using the acid dye with the dosage of 6 percent owf, wherein the bath ratio is 1:30, regulating the primary pH value to be 5.5 by using glacial acetic acid;
s62, dip dyeing, namely adding a dye when the temperature of a dye bath is raised to 40 ℃, raising the temperature to 97 ℃ at the rate of 3 ℃/min, keeping the temperature for 60min, and discharging liquid;
s63, regulating the pH value step by step, monitoring the pH value of the acidic dye solution in the dip-padding dyeing process, and adding glacial acetic acid intermittently in a distributed manner to keep the pH value within 5.5 +/-0.2;
and S64, drying, namely drying the impregnated and dyed grey cloth.
Through adopting above-mentioned technical scheme, select for use the acid dyestuff of 6 low owf to carry out even dyeing to polyamide material in the grey cloth, through the acid-base number of glacial acetic acid continuous adjustment dye liquor at the in-process that soaks the dyeing, can guarantee to dye good dyeing effect to the grey cloth to after the completion of dyeing is pricked to the dipping, dry grey cloth, make under the effect of the high temperature stoving of polyamide material, make the dyestuff can permeate to the polyamide fibre again in, possess good fixation effect.
The invention is further configured to: the water washing method comprises the following specific steps: steaming the dyed grey cloth, then sending the grey cloth into a horizontal washing tank for washing, wherein the water temperature in the horizontal washing tank is 70-80 ℃, and adding 2-4L of dispersant DAM into the horizontal washing tank.
By adopting the technical scheme, the brocade dyed grey cloth is steamed, the grey cloth is further subjected to color fixation, the temperature of the grey cloth can be raised during steaming, and then the grey cloth enters the open washing tank to be washed at 70-80 ℃, so that redundant dye on the surface of the grey cloth can be fully washed away.
The invention is further configured to: still include the nylon fixation, its concrete step is: adding a color fixing agent PDR with the dosage of 1-4 g/L, wherein the bath ratio is 1:30, adjusting the pH value of the solution to 2.5-6, finishing for 15min at the water temperature of 40-90 ℃, and then dehydrating and drying.
By adopting the technical scheme, after the dyeing of the nylon components is finished, the color fixing effect of the nylon material is improved by adding the color fixing agent PDR, and the color fixing effect is enhanced by finishing at the water temperature of 40-90 ℃.
The invention is further configured to: the high-temperature setting machine used in the setting step and the high-temperature setting machine adopted in the presetting step are used for heating the high-temperature setting machine in the setting or presetting step by recycling the temperature in waste gas generated by the presetting or the setting to the high-temperature setting machine in the setting or presetting step through a heat exchanger.
By adopting the technical scheme, in the subsequent finished product setting and the preliminary presetting process of grey cloth, the waste gas generated by presetting can be used in other setting machines when the waste gas is subjected to heat exchange through the heat exchanger, so that the energy consumption required by heating of a high-temperature setting machine is saved, and the heat exchanger is more energy-saving and environment-friendly.
In conclusion, the invention has the following beneficial effects:
the method comprises the steps of pre-setting the grey cloth, keeping the grey cloth neat, eliminating wrinkles on the surface of the grey cloth, improving the dyeing and finishing effect of the grey cloth, eliminating the problems of uneven dyeing and the like caused by the wrinkles, setting by adopting a high-temperature mode, vaporizing oil and water added during weaving the grey cloth through high temperature, reducing the oil content of the grey cloth, relieving the pressure of deoiling the grey cloth during pretreatment, shortening the processing time of fabric finishing, then dyeing cotton firstly, dyeing cotton components in the polyamide-cotton fabric at the temperature of 60 ℃ through active dye, and having good dyeing rate and color fixing rate.
Drawings
FIG. 1 is a block flow diagram of the present invention;
FIG. 2 is a process flow diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
A nylon-cotton knitted stretch fabric dyeing and finishing process is used for dyeing nylon-cotton blended gray fabric, and comprises the following processing steps of:
s1, pre-shaping, namely, unwinding and inspecting the gray fabric, and shaping the gray fabric by a high-temperature shaping machine at a width equal to the width of the gray fabric;
s2, preprocessing, namely adding a deoiling agent into a deoiling washing machine, uniformly mixing, heating to 90 ℃, adding grey cloth, and washing for 10min at constant temperature;
s3, dyeing cotton, preparing a dye solution, putting the pretreated gray fabric into a machine cylinder, raising the temperature to 60 ℃ at a constant speed, and carrying out heat preservation operation for 45-60min;
s4, cleaning;
s5, soaping, namely adding a soaping agent, heating to 80 ℃ at a constant speed, and then soaping for 15-20min;
s6, dyeing brocade, preparing an acid dye solution, putting the soaped grey cloth into a machine cylinder, heating to 90 ℃, and dip-dyeing for 30-45min;
s7, washing with water, namely continuously rinsing the grey cloth subjected to the brocade dyeing step through a washout tank;
s8, dehydrating, namely squeezing and dehydrating the washed grey cloth, and then drying;
s9, shaping, namely shaping the gray fabric according to the width requirement and the gram weight of the gray fabric;
and S10, checking.
As shown in fig. 2, the specific steps of S3 cotton dyeing include:
s31, preparing a dye solution, selecting a dye with a vinyl sulfone structure, and operating for 10 minutes;
s32, preparing an alkaline agent, adding anhydrous sodium sulphate and a soda solution into the dye solution, heating the dye solution to 60 ℃ at the speed of 1 ℃/min, and running for 20-25min;
s33, performing heat preservation and color fixation, wherein the temperature of the constant heat preservation dye is 60 ℃, and performing heat preservation for 15-25min for color fixation.
S4, the specific steps of cleaning are as follows: adding 0.5-2 g/L of chelating dispersant into clear water, then adding 0.5-1L of anti-staining cleaning agent, and finally soaking the grey cloth after the cotton dyeing treatment into a cleaning tank for continuous cleaning.
As shown in fig. 2, and the specific step of S6 brocade dyeing comprises:
s61, preparing an acid dye solution, and using the acid dye with the dosage of 6 percent owf, wherein the bath ratio is 1:30, adjusting the primary pH value to be 5.5 by using glacial acetic acid;
s62, dip dyeing, adding a dye when the temperature of a dye bath is raised to 40 ℃, raising the temperature to 97 ℃ at the temperature raising rate of 3 ℃/min, keeping the temperature for 60min, and discharging liquid;
s63, regulating the pH value step by step, monitoring the pH value of the acidic dye solution in the dip-padding dyeing process, and adding glacial acetic acid intermittently in a distributed manner to keep the pH value within 5.5 +/-0.2;
s64, drying, namely drying the impregnated and dyed grey cloth,
after the step of dyeing the nylon is finished, carrying out nylon color fixation operation on the grey cloth, and specifically comprising the following steps: adding a color fixing agent PDR with the dosage of 1-4 g/L, wherein the bath ratio is 1:30, adjusting the pH value of the solution to 2.5-6, finishing for 15min at the water temperature of 40-90 ℃, and then dehydrating and drying
S7, the water washing method comprises the following specific steps: steaming the dyed grey cloth, then sending the grey cloth into a horizontal washing tank for washing, wherein the water temperature in the horizontal washing tank is 70-80 ℃, and adding 2-4L of dispersant DAM into the horizontal washing tank.
In this embodiment, the high temperature setting machine used in the setting step and the high temperature setting machine used in the presetting step pass through a heat exchanger, and the temperature in the waste gas generated by presetting or setting is recycled to the heating of the high temperature setting machine in the setting or presetting step.
Color fastness test: taking navy blue as an example, the brocade and cotton fabrics dyed by the process are subjected to a wear-resistant color fastness test, a color fastness to washing test, a color fastness to sunlight test and a color fastness to perspiration test, and the test conclusion is as follows:
the brocade-cotton blended fabric dyed and finished by the process has good performance in all aspects of color fastness, wrinkles on the surface of the grey fabric can be eliminated by pre-setting the grey fabric, the problem that the grey fabric is prone to wrinkling and deformation due to differences between brocade and cotton materials is solved, the level dyeing effect of the grey fabric is further improved, meanwhile, components such as oil and the like added in the weaving process of the grey fabric can be evaporated by high-temperature treatment during pre-setting, the deoiling operation in the pre-treatment process is reduced, the dyeing effect of the dye is improved, the condition that the grey fabric is prone to color slippage and color difference in the dyeing stage is overcome, cotton components in the brocade-cotton blended fabric are uniformly dyed by the active dye firstly, then the brocade components are dyed in the acid dye, the brocade-cotton blended fabric has a good dyeing effect, the dyeing process of the brocade components is intelligent, the pH value is adjusted step by step, the stability of the pH value in the padding dyeing process is maintained, the dyeing effect can be improved, and the color fastness of the brocade-cotton blended fabric is further improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A brocade cotton knitting elastic cloth dyeing and finishing process is characterized in that: the dyeing process of the silk and cotton blended grey cloth comprises the following processing steps:
s1, pre-shaping, namely, unwinding and inspecting the gray fabric, and shaping the gray fabric by a high-temperature shaping machine at a width equal to the width of the gray fabric;
s2, preprocessing, namely adding a deoiling agent into a deoiling washing machine, uniformly mixing, heating to 90 ℃, adding grey cloth, and washing for 10min at constant temperature;
s3, dyeing cotton, preparing a dye solution, putting the pretreated gray fabric into a machine cylinder, raising the temperature to 60 ℃ at a constant speed, and carrying out heat preservation operation for 45-60min;
s4, cleaning;
s5, soaping, namely adding a soaping agent, heating to 80 ℃ at a constant speed, and then soaping for 15-20min;
s6, dyeing brocade, preparing an acid dye solution, putting the soaped grey cloth into a machine jar, heating to 90 ℃, and dip-dyeing for 30-45min;
s7, washing with water, namely continuously rinsing the grey cloth subjected to the brocade dyeing step through a washout tank;
s8, dehydrating, namely squeezing and dehydrating the washed grey cloth, and then drying the grey cloth;
s9, shaping, namely shaping the gray fabric according to the width requirement and the gram weight of the gray fabric;
and S10, checking.
2. The brocade cotton knitted stretch fabric dyeing and finishing process according to claim 1, characterized in that: the specific steps of the cotton dyeing method comprise:
s31, preparing a dye solution, selecting a dye with a vinyl sulfone structure, and operating for 10 minutes;
s32, preparing an alkaline agent, adding anhydrous sodium sulphate and a soda solution into the dye solution, heating the dye solution to 60 ℃ at the speed of 1 ℃/min, and running for 20-25min;
s33, performing heat preservation and color fixation, namely, keeping the temperature of the dye at 60 ℃ constantly, and performing heat preservation for 15-25min for color fixation.
3. The brocade cotton knitted stretch fabric dyeing and finishing process according to claim 1, characterized in that: the specific steps of the cleaning are as follows: adding 0.5-2 g/L of chelating dispersant into clear water, then adding 0.5-1L of anti-staining cleaning agent, and finally soaking the grey cloth after the cotton dyeing treatment into a cleaning tank for continuous cleaning.
4. The brocade cotton knitted stretch fabric dyeing and finishing process according to claim 1, characterized in that: the specific steps of brocade dyeing comprise:
s61, preparing an acid dye solution, and using the acid dye with the dosage of 6 percent owf, wherein the bath ratio is 1:30, adjusting the primary pH value to be 5.5 by using glacial acetic acid;
s62, dip dyeing, adding a dye when the temperature of a dye bath is raised to 40 ℃, raising the temperature to 97 ℃ at the temperature raising rate of 3 ℃/min, keeping the temperature for 60min, and discharging liquid;
s63, regulating the pH value step by step, monitoring the pH value of the acidic dye solution in the dip-padding dyeing process, and adding glacial acetic acid intermittently in a distributed manner to keep the pH value within 5.5 +/-0.2;
and S64, drying, namely drying the impregnated and dyed grey cloth.
5. The brocade cotton knitted stretch fabric dyeing and finishing process according to claim 1, characterized in that: the water washing method comprises the following specific steps: steaming the dyed grey cloth, then sending the grey cloth into a horizontal washing tank for washing, wherein the water temperature in the horizontal washing tank is 70-80 ℃, and adding 2-4L of dispersant DAM into the horizontal washing tank.
6. The brocade cotton knitted stretch fabric dyeing and finishing process according to claim 1, characterized in that: still include the nylon fixation, its concrete step is: adding a color fixing agent PDR with the dosage of 1-4 g/L, wherein the bath ratio is 1:30, adjusting the pH value of the solution to 2.5-6, finishing for 15min at the water temperature of 40-90 ℃, and then dehydrating and drying.
7. The brocade cotton knitted stretch fabric dyeing and finishing process according to claim 1, characterized in that: the high-temperature setting machine used in the setting step and the high-temperature setting machine adopted in the presetting step are used for heating the high-temperature setting machine in the setting or presetting step by recycling the temperature in waste gas generated by the presetting or the setting to the high-temperature setting machine in the setting or presetting step through a heat exchanger.
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| CN202210944410.6A CN115287915A (en) | 2022-08-06 | 2022-08-06 | Dyeing and finishing process for nylon-cotton knitted elastic fabric |
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| CN202210944410.6A CN115287915A (en) | 2022-08-06 | 2022-08-06 | Dyeing and finishing process for nylon-cotton knitted elastic fabric |
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