CN113652881B - Efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth - Google Patents
Efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth Download PDFInfo
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- CN113652881B CN113652881B CN202111001603.XA CN202111001603A CN113652881B CN 113652881 B CN113652881 B CN 113652881B CN 202111001603 A CN202111001603 A CN 202111001603A CN 113652881 B CN113652881 B CN 113652881B
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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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B7/00—Mercerising, e.g. lustring by mercerising
-
- 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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- 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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
-
- 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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention belongs to the technical field of cotton cloth mercerization, and particularly relates to a high-efficiency environment-friendly mercerization-imitating dyeing and finishing process for cotton cloth, which comprises the following steps: s1, adding dye and alkali-resistant penetrating agent into liquid ammonia to obtain mercerized dye liquor; s2, dyeing cotton cloth strips in the mercerizing dye liquor in a tension manner at the dyeing temperature of-25 to-20 ℃ for 3-5 min to obtain primary dyed cloth; s3, continuously dip-dyeing the primary dyed cloth in mercerized dye liquor, and adding sodium hydroxide into the mercerized dye liquor to ensure that the content of the sodium hydroxide in the mercerized dye liquor is 100-150 g/L, and raising the dip-dyeing temperature to 50-60 ℃ and the dip-dyeing time to 3-5 min to obtain secondary dyed cloth; s4, washing the secondary dyed cloth with high-pressure steam and cold and hot water alternately, and drying the washed secondary dyed cloth to obtain a finished dyed cloth. The mercerizing dyeing and finishing process provided by the invention can effectively solve the problem of low fixation rate of the cotton cloth dye treated by the traditional double-silk light treatment.
Description
Technical Field
The invention belongs to the technical field of cotton cloth mercerization, and particularly relates to a high-efficiency environment-friendly mercerization-imitating dyeing and finishing process for cotton cloth.
Background
In the prior art, in order to improve the gloss and feel of cotton cloth, mercerization is required. The traditional mercerization mainly comprises single mercerization and double mercerization, wherein the single mercerization is mainly carried out by concentrated alkali or liquid ammonia and some organic alcohol bulking agents, and the mercerization effect of the organic alcohol bulking agents is different from that of the concentrated alkali to a certain extent, so that the mercerization is not widely applied to the market; the mercerizing effect of the liquid ammonia is equivalent to that of the concentrated alkali, and the liquid ammonia can be recovered, is environment-friendly, and is widely applied.
Under the general condition, mercerization and dyeing are carried out step by step, namely, the two steps are non-overlapped, and the prior art has two technological methods of mercerization before dyeing and mercerization after dyeing, specifically, the mercerization after dyeing is to dye cotton cloth firstly and then carry out mercerization; and mercerizing cotton cloth before dyeing is mainly carried out mercerizing treatment and then dyeing treatment. Compared with mercerizing after dyeing, the dye fixation rate of cotton cloth treated by mercerizing before dyeing is better.
In order to further improve the clothing property of the cotton cloth, in the prior art, double mercerization is adopted, namely, mercerization is carried out once after mercerization before dyeing, bulking agents for the two mercerization can be the same or different, and the bulking agents can be generally selected according to actual requirements.
However, there is a certain technical problem in the double mercerization, that is, after the second mercerization, there is a problem that the fixation rate of the cotton dye is reduced, and each step of the double mercerization can be continued only after the previous step is completed, so that the double mercerization time is long, and the production cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problems to be solved by the invention are as follows: solves the problem of low fixation rate of the cotton cloth dye treated by the traditional double-silk light treatment.
In order to solve the technical problems, the invention provides an efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth, which comprises the following steps of:
s1, adding dye and alkali-resistant penetrating agent into liquid ammonia to obtain mercerized dye liquor;
s2, dyeing cotton cloth strips in the mercerizing dye liquor in a tension manner at the dyeing temperature of-25 to-20 ℃ for 3-5 min to obtain primary dyed cloth;
s3, continuously dip-dyeing the primary dyed cloth in mercerized dye liquor, and adding sodium hydroxide into the mercerized dye liquor to ensure that the content of the sodium hydroxide in the mercerized dye liquor is 100-150 g/L, and raising the dip-dyeing temperature to 50-60 ℃ and the dip-dyeing time to 3-5 min to obtain secondary dyed cloth;
s4, washing the secondary dyed cloth with high-pressure steam and cold and hot water alternately, and drying the washed secondary dyed cloth to obtain a finished dyed cloth.
The invention has the beneficial effects that: adding dye and alkali-resistant penetrating agent into liquid ammonia to make the dye penetrate into cotton fiber in the process of puffing the cotton fiber by the action of the liquid ammonia, so as to improve the dye fixation rate of the cotton fiber, and adding the alkali-resistant penetrating agent to accelerate the penetration of the dye into the cotton fiber and reduce the color difference of cotton cloth dyed by the dye; continuously adding sodium hydroxide (concentrated alkali) into mercerizing dye liquor to carry out secondary mercerizing treatment on primary dyed cloth through the sodium hydroxide, and adding the sodium hydroxide into the mercerizing dye liquor can promote ionization balance of ammonia water to be carried out towards the direction of ammonia monohydrate, and simultaneously raise dip dyeing temperature to promote volatilization of liquid ammonia, so that an operator can collect the liquid ammonia conveniently; in addition, after liquid ammonia mercerization, concentrated alkali mercerization is directly carried out, so that the rapid conversion of cotton fiber crystals can be promoted, and the number of small pores, medium pores and large pores in the cotton fiber treated by sodium hydroxide is obviously changed, so that dye attached or combined in the pores is prevented from being redissolved in mercerization dye liquor, and the dye fixation rate of cotton cloth is improved.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments.
An efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth comprises the following steps:
s1, adding dye and alkali-resistant penetrating agent into liquid ammonia to obtain mercerized dye liquor;
s2, dyeing cotton cloth strips in the mercerizing dye liquor in a tension manner at the dyeing temperature of-25 to-20 ℃ for 3-5 min to obtain primary dyed cloth;
s3, continuously dip-dyeing the primary dyed cloth in mercerized dye liquor, and adding sodium hydroxide into the mercerized dye liquor to ensure that the content of the sodium hydroxide in the mercerized dye liquor is 100-150 g/L, and raising the dip-dyeing temperature to 50-60 ℃ and the dip-dyeing time to 3-5 min to obtain secondary dyed cloth;
s4, washing the secondary dyed cloth with high-pressure steam and cold and hot water alternately, and drying the washed secondary dyed cloth to obtain a finished dyed cloth.
Specifically, dye and alkali-resistant penetrating agent are added into liquid ammonia, so that the dye can permeate into cotton fibers in the process of puffing the cotton fibers under the action of the liquid ammonia, the dye fixation rate of the cotton fibers is improved, and the penetration of the dye into the cotton fibers is accelerated and the color difference of cotton cloth dyed by the dye is reduced through the addition of the alkali-resistant penetrating agent.
And sodium hydroxide (concentrated alkali) is continuously added into the mercerizing dye liquor to carry out secondary mercerizing treatment on the primary dyed cloth through the sodium hydroxide, and the ionization balance of ammonia water can be promoted to be carried out towards the direction of ammonia monohydrate by adding the sodium hydroxide into the mercerizing dye liquor, and the dip dyeing temperature is increased simultaneously to promote the volatilization of the liquid ammonia, so that an operator is convenient to collect the liquid ammonia, preferably, the mercerizing treatment environment is carried out under a closed condition, and the volatilized ammonia is directly introduced into water through an air pump, so that the pollution to the environment caused by the leakage of the ammonia is avoided.
After liquid ammonia mercerization, the concentrated alkali mercerization is directly carried out, so that the cotton fiber crystal can be promoted to be rapidly converted into fiber II type, and the numbers of small pores, medium pores and large pores in the cotton fiber after sodium hydroxide treatment are obviously changed, specifically, the small pores
Is significantly increased, mesopores->
Is significantly reduced and macropores->
The dye is basically disappeared to fix the dye which is already adhered in the pores through the change of the pores, so as to avoid the dye adhered or combined in the pores from being re-dissolved into mercerized dye liquor, thereby improving the dye fixation rate of cotton cloth.
And (3) the secondary dyed cloth is subjected to high-pressure steam, so that the dye attached to the surface of the cotton fiber is promoted to permeate into the cotton fiber through the high temperature and high pressure of the high-pressure steam, and the dye fixation rate of the cotton fabric is further improved.
The secondary cotton cloth with the over-high pressure steam is subjected to cold and hot water alternate water washing so as to wash down mercerized dye liquor attached to the surface of the cotton cloth, and the dye fixation rate of the cotton cloth is only improved through the arrangement of the cold and hot water alternate water washing.
And adding a certain amount of sodium hydroxide into the mercerizing dye liquor to ensure that the content of the sodium hydroxide in the mercerizing dye liquor is 100-150 g/L, and carrying out secondary mercerizing treatment on cotton cloth through low-concentration concentrated alkali (compared with the traditional method of 250 g/L), so that the mercerizing degree is prevented from being too high due to the too high concentration of the concentrated alkali, the clothing performance of the cotton cloth is reduced, meanwhile, the high concentration of the concentrated alkali can prevent the change efficiency of pores on cotton fibers from being too high, and partial dye is separated from the pores and is free in the mercerizing dye liquor due to the too high change degree, so that the fixation rate of the cotton cloth is further improved.
It should be noted that, in this context, the dye and alkali-resistant penetrant should have low temperature resistance to avoid denaturation or solidification of the dye and alkali-resistant penetrant during mercerization of liquid ammonia, which affects dyeing effect.
Preferably, the dye is added in an amount of o.w.f3%.
Preferably, in the mercerizing dye liquor, the concentration of the alkali-resistant penetrating agent is 5.0g/L.
Further, the belt tension is to fix the two ends of the cotton cloth in the warp direction on tension rollers respectively.
From the above description, it is known that the cotton fiber is promoted to have a certain orientation in the mercerization process by fixing the two ends of the cotton cloth in the warp direction on the tension roller respectively in the process and the middle of the cotton cloth dip dyeing so as to have a certain tension, thereby improving the wearability of the mercerized cotton fiber.
Further, the cold and hot water alternate water washing comprises 3 channels of hot water washing at 60 ℃ and 2 channels of cold water washing at 20 ℃.
Preferably, the cold and hot water alternate water washing at least comprises 1 neutralization water washing, wherein the neutralization water washing cleaning liquid contains acetic acid, and the water temperature is 50 ℃.
From the above description, it is known that by adding at least 1 neutralization water washing in the cold and hot water alternating water washing process, the acetic acid in the washing liquid is neutralized with the concentrated alkali phase, so as to avoid the environment pollution caused by the concentrated alkali.
Example 1
An efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth comprises the following steps:
s1, adding o.w.f3% active orange O5 (purchased from Shanghai Jiaying chemical company) and 5gTF-107 (purchased from Shanghai Zhi Lian Co., ltd.) into 1L of liquid ammonia to obtain mercerized dye liquor;
s2, dyeing 100g of cotton cloth in the mercerizing dye liquor in a tension manner, wherein the dyeing temperature is-25 ℃ and the dyeing time is 3min, so as to obtain primary dyed cloth;
s3, continuously dip-dyeing the primary dyed cloth in mercerized dye liquor, and adding sodium hydroxide into the mercerized dye liquor to ensure that the content of the sodium hydroxide in the mercerized dye liquor is 100g/L, and raising the dip-dyeing temperature to 50 ℃ for 3min to obtain secondary dyed cloth;
s4, subjecting the secondary dyed cloth to 6MPa high-pressure steam, performing hot water at 60 ℃ and cold water at 20 ℃ after the high-pressure steam is applied, performing neutralization water washing (50 ℃,5% acetic acid), performing hot water at 60 ℃ and cold water at 20 ℃, and performing 90 ℃ drying to obtain the finished dyed cloth.
Example 2
An efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth comprises the following steps:
s1, adding o.w.f3% active orange O5 (purchased from Shanghai Jiaying chemical company) and 5gTF-107 (purchased from Shanghai Zhi Lian Co., ltd.) into 1L of liquid ammonia to obtain mercerized dye liquor;
s2, dyeing 100g of cotton cloth in the mercerizing dye liquor in a tension manner, wherein the dyeing temperature is-20 ℃ and the dyeing time is 5min, so as to obtain primary dyed cloth;
s3, continuously dip-dyeing the primary dyed cloth in mercerized dye liquor, and adding sodium hydroxide into the mercerized dye liquor to ensure that the sodium hydroxide content in the mercerized dye liquor is 150g/L, and raising the dip-dyeing temperature to 50 ℃ for 5min to obtain secondary dyed cloth;
s4, subjecting the secondary dyed cloth to 6MPa high-pressure steam, sequentially carrying out 60 ℃ hot water-20 ℃ cold water-neutralization water washing (50 ℃ and 5% acetic acid) -60 ℃ hot water-20 ℃ cold water washing, and carrying out 90 ℃ drying on the secondary dyed cloth to obtain the finished dyed cloth.
Comparative example 1
The mercerizing dyeing and finishing process of cotton cloth is different from that of the embodiment 1 in that after the cotton cloth is mercerized by liquid ammonia, the cotton cloth is dried and fixed for 3min at 60 ℃ for 5min and 90 ℃, and then the fixed cotton cloth is put into concentrated alkali solution (250 g/L) for 3min; finally, the step S4 is carried out as in the embodiment 1 to obtain the finished dyed fabric.
Detection example 1
The color fixation rate of the finished dyed cloth obtained in example 1, example 2 and comparative example 1 was measured.
The color fixation rate measuring and calculating formula is as follows: f% = (M1-M2-M3)/M3X100%
Wherein F% represents the fixation rate;
m1 represents the mass of dye before dyeing;
m2 represents the mass of dye in mercerized dye liquor after dyeing;
m3 represents the mass of dye in the washing liquid after washing.
Wherein, M1, M2 and M3 can be obtained by calculating the characteristic of the maximum absorption peak of the active orange O5 at 510 nm. The color fixation measurement results are shown in table 1.
TABLE 1
As can be seen from Table 1, the fixation rates of the examples 1 and 2 are both greater than that of the comparative example 1 (conventional double mercerization), i.e. the high-efficiency environment-friendly mercerization-like dyeing and finishing process for cotton cloth provided by the invention can effectively improve the fixation rate of the cotton cloth. Compared with comparative example 1, the dyeing step and the first liquid ammonia mercerizing step in the mercerizing and dyeing process are overlapped, and the second mercerizing step can be directly carried out without drying the cotton cloth subjected to the first mercerizing treatment, so that the cotton cloth dyeing and finishing process flow and time can be effectively shortened, and the cotton cloth mercerizing and dyeing and finishing efficiency can be improved.
In summary, according to the efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth, provided by the invention, the dye and the alkali-resistant penetrating agent are added into the liquid ammonia, so that the dye can penetrate into the cotton fiber in the process of puffing the cotton fiber under the action of the liquid ammonia, the dye fixation rate of the cotton fiber is improved, and the penetration of the dye into the cotton fiber is accelerated and the color difference of the cotton cloth dyed by the dye is reduced through the addition of the alkali-resistant penetrating agent; continuously adding sodium hydroxide (concentrated alkali) into mercerizing dye liquor to carry out secondary mercerizing treatment on primary dyed cloth through the sodium hydroxide, and adding the sodium hydroxide into the mercerizing dye liquor can promote ionization balance of ammonia water to be carried out towards the direction of ammonia monohydrate, and simultaneously raise dip dyeing temperature to promote volatilization of liquid ammonia, so that an operator can collect the liquid ammonia conveniently; in addition, after liquid ammonia mercerization, concentrated alkali mercerization is directly carried out, so that the rapid conversion of cotton fiber crystals can be promoted, and the number of small pores, medium pores and large pores in the cotton fiber treated by sodium hydroxide is obviously changed, so that dye attached or combined in the pores is prevented from being redissolved in mercerization dye liquor, and the dye fixation rate of cotton cloth is improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent modifications made by the teachings of the present invention, or direct or indirect application in the relevant art, are intended to be included within the scope of the present invention.
Claims (4)
1. The efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth is characterized by comprising the following steps of:
s1, adding dye and alkali-resistant penetrating agent into liquid ammonia to obtain mercerized dye liquor;
s2, dyeing cotton cloth strips in the mercerizing dye liquor in a tension manner, wherein the dyeing temperature is-25 to-20 ℃ and the dyeing time is 3-5 min, so as to obtain primary dyed cloth;
s3, continuously dip-dyeing the primary dyed cloth in mercerized dye liquor, and adding sodium hydroxide into the mercerized dye liquor to ensure that the content of the sodium hydroxide in the mercerized dye liquor is 100-150 g/L, and raising the dip-dyeing temperature to 50-60 ℃ and the dip-dyeing time to 3-5 min to obtain secondary dyed cloth;
s4, washing the secondary dyed cloth with high-pressure steam and cold and hot water alternately, and drying the washed secondary dyed cloth to obtain a finished dyed cloth;
the belt tension is to fix the two ends of the cotton cloth in the warp direction on tension rollers respectively;
the cold and hot water alternate water washing at least comprises 1 neutralization water washing, wherein the cleaning liquid for the neutralization water washing contains acetic acid, and the water temperature is 50 ℃.
2. The efficient and environment-friendly mercerizing dyeing and finishing process for cotton cloth according to claim 1, wherein the addition amount of the dye is o.w.f3%.
3. The efficient and environment-friendly mercerizing and dyeing process for cotton cloth according to claim 1, wherein the concentration of the alkali-resistant penetrating agent in the mercerizing and dyeing liquid is 5.0g/L.
4. The efficient and environment-friendly mercerizing dyeing and finishing process for cotton cloth according to claim 1, wherein the cold and hot water alternate water washing comprises 3 channels of hot water washing at 60 ℃ and 2 channels of cold water washing at 20 ℃.
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| CN202111001603.XA CN113652881B (en) | 2021-08-30 | 2021-08-30 | Efficient environment-friendly mercerizing dyeing and finishing process for cotton cloth |
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| JP3114823B2 (en) * | 1992-02-14 | 2000-12-04 | 東洋紡績株式会社 | Modified cotton yarn and method for producing the same |
| CN101864667B (en) * | 2010-07-05 | 2013-01-23 | 无锡市天然绿色纤维科技有限公司 | Method for producing double mercerized yarns |
| CN102926070B (en) * | 2012-11-12 | 2015-05-13 | 无锡市天然绿色纤维科技有限公司 | Dual mercerized yarn and processing method thereof |
| CN112030573B (en) * | 2020-09-08 | 2022-12-13 | 浙江劲光纺织科技有限公司 | Efficient environment-friendly mercerizing-like dyeing and finishing process for cotton cloth |
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