CN115323812A - Energy-saving environment-friendly type cotton-nylon fabric overflow dyeing process - Google Patents
Energy-saving environment-friendly type cotton-nylon fabric overflow dyeing process Download PDFInfo
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- CN115323812A CN115323812A CN202210857995.8A CN202210857995A CN115323812A CN 115323812 A CN115323812 A CN 115323812A CN 202210857995 A CN202210857995 A CN 202210857995A CN 115323812 A CN115323812 A CN 115323812A
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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
- 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
- D06P1/38—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
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/10—After-treatment with compounds containing metal
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an energy-saving and environment-friendly overflow dyeing process for cotton-nylon fabric, which comprises the steps of adding reactive dye and acid dye into a dye vat at the same time, heating to 50-85 ℃, and dyeing cotton in the cotton-nylon fabric under alkaline condition; then the temperature is raised to 93-98 ℃, and the brocade material in the cotton-brocade fabric is dyed under the neutral or weakly acidic condition. The invention can finish the dyeing of the cotton and the brocade with quality and quantity guarantee in the same dye vat, namely, the dyeing of the cotton and the brocade is finished by adopting a one-step two-bath method, which can save 80 percent of water, 40 percent of electricity and 40 percent of steam compared with the traditional overflow two-step process of the cotton and the brocade, thereby not only effectively reducing the production cost, but also having good energy-saving and environment-friendly effects.
Description
Technical Field
The invention relates to a dyeing process of a cotton-nylon fabric, in particular to an energy-saving and environment-friendly overflow dyeing process of the cotton-nylon fabric.
Background
The cotton-nylon fabric is a product prepared from cotton and nylon as raw materials, and the cotton-nylon fabric not only keeps good ventilation and comfort, but also has good high strength and wear resistance, is popular with consumers, and is a popular fabric in the market. When the cotton-nylon fabric is processed by the traditional dyeing and finishing process, the pretreatment mostly adopts a multi-bath multi-step method, namely desizing, scouring and bleaching are respectively carried out, the dyeing usually adopts a two-bath two-step dyeing process, the cotton is dyed firstly, and then the nylon is dyed, so that the process flow is long, the time is consumed, and the energy is consumed. Along with the continuous price rise of raw materials in recent years, clothing brand customers do not agree with fabric suppliers to raise prices, the profit margin of printing and dyeing enterprises is continuously compressed, and the development of a low-cost, energy-saving and environment-friendly nylon cotton dyeing process is urgently needed.
Disclosure of Invention
The invention aims to provide an energy-saving and environment-friendly overflow dyeing process for a cotton-nylon fabric. The invention has the characteristics of effectively reducing the production cost, saving energy and protecting environment.
The technical scheme of the invention is as follows: an energy-saving environment-friendly overflow dyeing process for cotton-nylon fabric comprises the steps of adding reactive dye and acid dye into a dye vat at the same time, heating to 50-85 ℃, and dyeing cotton in the cotton-nylon fabric under alkaline conditions; then the temperature is raised to 93-98 ℃, and the brocade material in the cotton-brocade fabric is dyed under the neutral or weakly acidic condition.
In the energy-saving environment-friendly cotton-nylon fabric overflow dyeing process, when dyeing treatment of medium color or deep color is carried out on the cotton-nylon fabric, the dyeing process comprises the following specific steps:
a, dissolving a reactive dye in warm water, stirring, dissolving an acid dye in the boiled water, stirring, and mixing to obtain a mixed dye;
step B, controlling the temperature of the dye vat filled with the cotton and nylon fabric at 30-40 ℃, adding an accelerating agent, and stirring for 10-20min;
step C, adding the mixed dye into a dye vat, operating for 8-12min, adding one third of anhydrous sodium sulphate, and uniformly stirring;
d, after the temperature of the dye vat is increased to 66-73 ℃ at the temperature increase speed of 1 ℃/min, adding two thirds of anhydrous sodium sulphate, continuously increasing the temperature of the dye vat to 82-88 ℃ at the temperature increase speed of 1 ℃/min, and then preserving the heat for 18-22min to finish the cotton dyeing treatment;
step E, continuously heating the dye vat to 96-99 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 30min to finish the brocade dyeing treatment;
step F, reducing the temperature of the dye vat to 58-62 ℃ at the cooling speed of 1 ℃/min, adding 3-5g/L of soda ash, and preserving the heat for 30-50min;
and G, washing for 10min, then soaping, and finally washing for 2 times to obtain a finished product.
In the energy-saving environment-friendly cotton and nylon fabric overflow dyeing process, in the step G, the soaping temperature is 60-90 ℃; the soaping agent is an acid reduction soaping agent.
In the energy-saving and environment-friendly overflow dyeing process for the cotton-nylon fabric, the reactive dye is one or more of N-CR red, N-RR yellow, E-NW dark blue or EX-D navy blue; the acid dye is one or more of NHK blue, NHK yellow, MRS red or MRS navy blue.
In the energy-saving environment-friendly type cotton and nylon fabric overflow dyeing process, when the cotton dyeing treatment is carried out in the step D, the pH value of a dye vat is 8-9; and E, when the cotton dyeing treatment is carried out in the step E, the pH value of the dye vat is 6-7.
Compared with the prior art, the method has the advantages that the reactive dye and the acidic dye are simultaneously added, the temperature is firstly raised to 50-85 ℃, the cotton is dyed under the alkaline condition, the temperature is raised to 93-98 ℃, the brocade is dyed under the neutral or weakly acidic condition, the brocade and the cotton can be dyed in the same dye vat with quality and quantity guaranteed, namely, the dyeing of the brocade is finished by adopting a one-step two-bath method, compared with the traditional two-bath two-step process for the brocade, the method can save 80 percent of water, 40 percent of electricity and 40 percent of steam, can effectively reduce the production cost, and has good energy-saving and environment-friendly effects. In conclusion, the invention has the characteristics of effectively reducing the production cost, saving energy and protecting environment.
Drawings
FIG. 1 is a graph showing the results of comparative experiments on compatibility of dark color systems in the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example 1. An energy-saving environment-friendly overflow dyeing process for cotton-nylon fabric comprises the steps of adding reactive dye and acid dye into a dye vat at the same time, heating to 50-85 ℃, and dyeing cotton in the cotton-nylon fabric under alkaline conditions; then the temperature is raised to 93-98 ℃, and the brocade material in the cotton-brocade fabric is dyed under the neutral or weakly acidic condition.
When the cotton and nylon fabric is dyed in medium color or dark color, the method comprises the following specific steps:
step A, dissolving the reactive dye with warm water, stirring, dissolving the acid dye with the boiled water, stirring, and then mixing together to obtain a mixed dye;
step B, controlling the temperature of the dye vat filled with the cotton and nylon fabric at 30-40 ℃, adding an accelerating agent, and stirring for 10-20min;
step C, adding the mixed dye into a dye vat, operating for 8-12min, adding one third of anhydrous sodium sulphate, and uniformly stirring;
d, after the temperature of the dye vat is increased to 66-73 ℃ at the temperature increase speed of 1 ℃/min, adding two thirds of anhydrous sodium sulphate, continuously increasing the temperature of the dye vat to 82-88 ℃ at the temperature increase speed of 1 ℃/min, and then preserving the heat for 18-22min to finish the cotton dyeing treatment;
step E, continuously heating the dye vat to 96-99 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 30min to finish the brocade dyeing treatment;
step F, reducing the temperature of the dye vat to 58-62 ℃ at the cooling speed of 1 ℃/min, adding 3-5g/L of soda ash, and preserving the heat for 30-50min;
and G, washing with water for 10min, then soaping, and finally washing with water for 2 times to obtain a finished product.
In the step G, the soaping temperature is 60-90 ℃; the soaping agent is an acidic reduction soaping agent.
The active dye is one or more of N-CR red, N-RR yellow, E-NW dark blue or EX-D navy blue; the acid dye is one or more of NHK blue, NHK yellow, MRS red or MRS navy blue.
D, when cotton dyeing treatment is carried out in the step D, the pH value of the dye vat is 8-9; and E, when the cotton dyeing treatment is carried out in the step E, the pH value of the dye vat is 6-7.
The temperature of the warm water is generally 25-40 ℃, and the temperature of the boiled water is generally about 100 ℃.
N-CR red, N-RR yellow, E-NW dark blue is used in the amount of less than 1.5%, for example, EX-D dark blue is used in the amount of more than 1.5%.
The invention adopts the process of one-bath of two dyes, the selection of the dye and the auxiliary agent needs special care, and through experimental comparison, the three-reaction-group reactive dye with low alkali and high dye-uptake is selected, so that the color of cotton fiber is not influenced under the conditions of neutrality, faintly acid and high temperature; the original alkaline soaping agent is replaced by the acid reduction soaping agent, the soaping temperature is reduced to 60-90 (preferably 80), the color of the nylon fiber is not influenced on the premise of clean soaping, and the use of steam can be reduced.
Table 1, the different amount of the salt and alkali is determined by the different amount and concentration of the dye
Example 2. The energy-saving and environment-friendly overflow dyeing process for the cotton-nylon fabric comprises the following specific steps of:
a, dissolving a reactive dye in warm water, stirring, dissolving an acid dye in the boiled water, stirring, and mixing to obtain a mixed dye;
step B, controlling the temperature of the dye vat filled with the cotton and nylon fabric at 35 ℃, adding an accelerating agent, and stirring for 15min;
step C, adding the mixed dye into a dye vat, operating for 10min, adding one third of anhydrous sodium sulphate, and uniformly stirring;
step D, after the temperature of the dye vat is increased to 70 ℃ at the temperature increase speed of 1 ℃/min, adding two thirds of anhydrous sodium sulphate, continuously increasing the temperature of the dye vat to 85 ℃ at the temperature increase speed of 1 ℃/min, and then preserving the heat for 20min to finish the cotton dyeing treatment;
step E, continuously heating the dye vat to 98 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 30min to finish the brocade dyeing treatment;
step F, reducing the temperature of the dye vat to 60 ℃ at the cooling speed of 1 ℃/min, adding 5g/L of soda ash, and preserving the heat for 40min;
and G, washing with water for 10min, then soaping, and finally washing with water for 2 times to obtain a finished product.
In the step G, the soaping temperature is 80 ℃; the soaping agent is an acid reduction soaping agent.
The active dye is N-CR red, 0.5 percent; N-RR yellow, 0.5%; E-NW dark blue, 1%. The acid dyes are NHK blue, NHK yellow and MRS red.
When the cotton dyeing treatment is carried out in the step D, the pH value of the dye vat is 8.5; and E, when the cotton dyeing treatment is carried out in the step E, the pH value of the dye vat is 6.5.
The temperature of the warm water is generally 25-40 ℃, and the temperature of the boiled water is generally about 100 ℃.
The total amount of anhydrous sodium sulphate is 60g/L.
The content of soda ash is 5g/L.
The accelerating agent S is 3g/L.
When a medium-deep color compatibility comparison experiment is carried out on the cotton and nylon fabric, the test result is shown in figure 1, and can be seen from figure 1: the color of the fabric is reddish yellow along with the rise of the temperature, the reddish yellow is not fully colored at 60 ℃, and NCR red and NRR Huang Cai are fully colored when the temperature reaches 80 ℃; under different heat preservation time conditions when the temperature reaches 98 ℃, the color is not changed obviously, basically unchanged from 20min to 60min, and slightly blue after 10 min.
Claims (5)
1. The energy-saving and environment-friendly overflow dyeing process for the cotton-nylon fabric is characterized by comprising the following steps of: adding a reactive dye and an acid dye into a dye vat at the same time, heating to 50-85 ℃, and dyeing the cotton material in the cotton-nylon fabric under an alkaline condition; then the temperature is raised to 93-98 ℃, and the brocade material in the cotton-brocade fabric is dyed under the neutral or weakly acidic condition.
2. The overflow dyeing process of the energy-saving environment-friendly cotton-nylon fabric according to claim 1, characterized by comprising the following specific steps when dyeing the cotton-nylon fabric in medium color or dark color:
step A, dissolving the reactive dye with warm water, stirring, dissolving the acid dye with the boiled water, stirring, and then mixing together to obtain a mixed dye;
step B, controlling the temperature of the dye vat filled with the cotton and nylon fabric at 30-40 ℃, adding an accelerating agent, and stirring for 10-20min;
step C, adding the mixed dye into a dye vat, operating for 8-12min, adding one third of anhydrous sodium sulphate, and uniformly stirring;
d, after the temperature of the dye vat is increased to 66-73 ℃ at the temperature increase speed of 1 ℃/min, adding two thirds of anhydrous sodium sulphate, continuously increasing the temperature of the dye vat to 82-88 ℃ at the temperature increase speed of 1 ℃/min, and then preserving the heat for 18-22min to finish the cotton dyeing treatment;
step E, continuously heating the dye vat to 96-99 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 30min to finish the brocade dyeing treatment;
step F, reducing the temperature of the dye vat to 58-62 ℃ at the cooling speed of 1 ℃/min, adding 3-5g/L of soda ash, and preserving the heat for 30-50min;
and G, washing with water for 10min, then soaping, and finally washing with water for 2 times to obtain a finished product.
3. The overflow dyeing process of the energy-saving environment-friendly cotton-nylon fabric according to claim 2, characterized in that: in the step G, the soaping temperature is 60-90 ℃; the soaping agent is an acid reduction soaping agent.
4. The overflow dyeing process of the energy-saving environment-friendly cotton-nylon fabric according to claim 2, characterized in that: the active dye is one or more of N-CR red, N-RR yellow, E-NW dark blue or EX-D navy blue; the acid dye is one or more of NHK blue, NHK yellow, MRS red or MRS navy blue.
5. The overflow dyeing process of the energy-saving environment-friendly cotton-nylon fabric according to claim 2, characterized in that: d, when cotton dyeing treatment is carried out in the step D, the pH value of the dye vat is 8-9; and E, when the cotton dyeing treatment is carried out in the step E, the pH value of the dye vat is 6-7.
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Citations (9)
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|---|---|---|---|---|
| GB1155148A (en) * | 1966-02-01 | 1969-06-18 | Sandoz Ltd | Dyeing process for Blends of Cellulosic and Polyamide Fibres |
| JPH0797777A (en) * | 1993-08-05 | 1995-04-11 | Daiichi Kasei Kk | Method for dyeing polyamide material |
| CN1538004A (en) * | 2003-10-23 | 2004-10-20 | 张永成 | Bath method of dyeing |
| CN102199884A (en) * | 2011-03-07 | 2011-09-28 | 浙江理工大学 | Method for dip-dyeing polyamide/cotton (viscose) fabrics with acid or neutral and reactive dyes in one-bath way |
| CN104233865A (en) * | 2013-06-17 | 2014-12-24 | 无锡市东新织造有限公司 | Dyeing process for viscose/brocade blended silks by active/acid dye-bath method |
| CN105200817A (en) * | 2015-11-04 | 2015-12-30 | 浙江劲光实业股份有限公司 | One-bath dyeing method for brocade cotton through reactive dyes |
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| CN111434849A (en) * | 2019-01-14 | 2020-07-21 | 浙江迎丰科技股份有限公司 | Short-process dyeing and finishing process for nylon-cotton fabric |
-
2022
- 2022-07-20 CN CN202210857995.8A patent/CN115323812A/en active Pending
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| JPH0797777A (en) * | 1993-08-05 | 1995-04-11 | Daiichi Kasei Kk | Method for dyeing polyamide material |
| CN1538004A (en) * | 2003-10-23 | 2004-10-20 | 张永成 | Bath method of dyeing |
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| CN111434849A (en) * | 2019-01-14 | 2020-07-21 | 浙江迎丰科技股份有限公司 | Short-process dyeing and finishing process for nylon-cotton fabric |
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