CN102605653B - One-bath processing method for pure-cotton knitted fabric scouring and bleaching and pigment dyeing - Google Patents
One-bath processing method for pure-cotton knitted fabric scouring and bleaching and pigment dyeing Download PDFInfo
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- CN102605653B CN102605653B CN201210057208.8A CN201210057208A CN102605653B CN 102605653 B CN102605653 B CN 102605653B CN 201210057208 A CN201210057208 A CN 201210057208A CN 102605653 B CN102605653 B CN 102605653B
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Abstract
The invention relates to a one-bath processing method for pure-cotton knitted fabric scouring and bleaching and pigment dyeing, belonging to the technical field of textile dyeing and finishing. The process adopted in the invention comprises the following steps: (1) carrying out scouring and bleaching treatment on pure-cotton knitted fabric, wherein waste liquid discharge is not needed after the treatment is completed; (2) after the scouring and bleaching treatment is completed, adjusting the treating fluid to a certain condition, and then adding catalase, so that residual hydrogen peroxide is sufficiently decomposed; and (3) preparing a pigment dyeing solution by utilizing the residual fluid and dyeing the pure-cotton knitted fabric, adding a binding agent to the residual fluid after the dyeing is completed for fixation, and finally taking out the knitted fabric and carrying out dehydration, drying and curing treatment. According to the invention, two processes, namely pure-cotton knitted fabric scouring and bleaching and pigment dyeing, are combined and carried out in a same treatment bath, thereby not only ensuring the dyeing effect, but also repeatedly utilizing the scouring and bleaching residual fluid, and being remarkable in water-saving and energy-saving effects.
Description
Technical field
The present invention relates to scouringing and bleaching and pigment dyeing technique of pure cotton knitted fabric, particularly in same processing is bathed, scouring and bleaching and the method for pigment dyeing, belong to technical field of textile printing.
Background technology
On pure cotton knitting grey cloth, exist a large amount of impurity as hemicellulose, pectin, wax, cotton seed hulls, natural colouring matter etc., make fabric color jaundice, water imbibition is very poor, affects its properties.Therefore, carry out removing the concise and bleaching that natural impurity is object, make fabric obtain good water imbibition and clean outward appearance, be beneficial to the carrying out of the processing such as follow-up dyeing.Generally, in order to save the energy and to enhance productivity, the concise and bleaching of knitted fabric is merged into an operation to be carried out, referred to as the processing of scouringing and bleaching.After the operation of scouringing and bleaching completes, often, by treatment fluid discharge, then in equipment, inject new water fabric cleaned, finally by fabric drying to carry out the processing such as follow-up dyeing.
Pure cotton knitted fabric can dye as direct, sulfuration, activity and reducing dye etc. with various dyestuffs, and also available coating dyes.Pigment dyeing has the advantages such as environmental pollution is little, technique is simple, colorant match is convenient, energy-saving water-saving, in dyeing, is used widely.Due to the loosely organized easy distortion of cotton fabrics, therefore generally only can adopt the staining method of intermittently contaminating, be not suitable for taking continuous knot dyeing technology.At present, the coating that can be used for cotton fabrics dyeing mainly comprises anionic and cationic type coating.Anionic coating to cotton fiber without affinity, while adopting dip-dye mode to dye, can not certainly be sent to fiber surface shifts, can utilize the cation modifier containing reactive group to carry out preliminary treatment to fiber, by introducing cation group on cotton fiber surface, effectively strengthen the adsorption capacity of cotton fiber to anionic coating, reach the object that improves the textile dyeing degree of depth.Patent and the bibliographical information relevant to the method are more, as take the BLENDED FABRIC such as tencel/wool, day silk/cotton in Chinese patent 02160747.8, it is raw material, first adopt the polyfunctional compound of the many alcohol of polyamines to carry out pre-treatment to fabric, then carry out pigment dyeing, obtain product soft, that COLOR FASTNESS reaches GB.But, adopt cation-modified method to promote pigment dyeing not only to make dyeing process increase, and the natural excellent characteristic of infringement COTTON FABRIC, and environment is caused to certain pollution.Cationic type coating also can be used for the dyeing of pure cotton fabric, and does not need COTTON FABRIC to carry out modification, can effectively shorten dyeing process.Chinese patent CN 101457486B discloses a kind of method of utilizing gemini quaternary ammonium salt type cationic fine paint to dye to cellulose and BLENDED FABRIC, can improve color depth and the vividness of fabric, improves feel and the COLOR FASTNESS of pigment dyeing fabric.
In a word, in existing pure cotton knitted fabric dyeing and finishing processing method, fabric is scouringed and bleaching and is processed and exhaust dyeing with pigment is two separate processes.COTTON FABRIC is scouringed and bleaching after pre-treatment completes, the treatment fluid of often scouringing and bleaching discharge, and the clean new water that reinjects when carrying out follow-up pigment dyeing carries out dye bath preparation.Therefore, current technology water consumption, energy consumption are all larger, and production efficiency is also lower.The utilization of the present invention treatment fluid of operation after completing of scouringing and bleaching carries out the preparation of pigment dyeing bath, realizes scouring and bleaching pre-treatment and pigment dyeing one of pure cotton knitted fabric and bathes processing, can guarantee dyeing quality, can realize the recycling to waste water again.
Summary of the invention
The object of this invention is to provide that a kind of pure cotton knitted fabric is scouringed and bleaching, pigment dyeing one bathes processing technology, utilizes the waste liquid of pre-treatment as the carrier of follow-up pigment dyeing, can guarantee dyeing quality, again to wastewater reuse.
The present invention includes following technique:
(1) the pure cotton knitted fabric pre-treatment of scouringing and bleaching, treatment conditions are: hydrogen peroxide 6-10ml/L, hydrogen peroxide stabilizer 2-4g/L, non-ionic surface active agent 3-5g/L, pH11.0-11.5,95 ℃ of temperature, time 50-60min, bath raio 1: 15;
(2) after scouringing and bleaching and finishing dealing with, treatment fluid is cooled to 40-50 ℃, regulator solution pH to 6.5-7.5, adds catalase-3-5g/L, and time 20min fully decomposes residual hydrogen peroxide;
(3) utilize above-mentioned raffinate preparation pigment dyeing liquid dyeing, condition is: cationic type coating 1-15%owf, temperature 40-50 ℃, time 60-80min; After having dyeed, carry out fixation, color fixing condition is: adhesive 10-50g/L, and 80 ℃ of temperature, time 20-30min, after completing takes out fabric centrifugal dehydration to liquid carrying rate 80-100%, at 100 ℃, dries, and then under 150 ℃ of conditions, bakes 3-8min.
The present invention's hydrogen peroxide used is that content of hydrogen peroxide is not less than 35% industrial hydrogen peroxide, and the color development system that can make natural colouring matter in COTTON FABRIC after decomposition is destroyed and reached bleaching object.Hydrogen peroxide stabilizer is the inorganic hydrogen peroxide bleaching stabilizer of commercially available bleaching, can guarantee that hydrogen peroxide effectively decomposes in bleaching process, unlikely waste and excessive damage cotton fiber.Non-ionic surface active agent used is fatty alcohol polyethenoxy ether class non-ionic surface active agent paregal O-9.Paregal O-9 assist in removing the impurity such as oily wax on cotton fiber, pectin in the process of scouringing and bleaching, and hydrophily that makes COTTON FABRIC etc. reaches requirement; In addition; because it has good peptizaiton to coating; and insensitive to materials such as electrolyte, acid, alkali; compatible strong with other types dispersant; therefore; when follow-up preparation pigment dyeing is bathed, can play good dispersion protective effect to cation paint, guarantee that cation paint dye bath, in stable state, obtains good Color.The catalase adding is the deoxidation catalase of dyeing routine, can play fast decoupled effect to hydrogen peroxide, makes it to decompose completely in order to avoid affects follow-up dyeing processing.Cationic type coating is commercially available dyeing CATION mill base, plays the object to textile dyeing.After having dyeed, carry out fixation treatment to improve the COLOR FASTNESS of coating on fabric, adhesive therefor is commercially available dyeing or stamp cationic binder, directly joins in pigment dyeing raffinate.After fixation, the certain high-temperature process of fabric dehydration, oven dry warp, makes adhesive at fabric face film-forming, and coating is coated.
The invention provides that a kind of pure cotton knitted fabric is scouringed and bleaching, pigment dyeing one bathes processing method, after the waste liquid of scouringing and bleaching carries out suitably processing, preparation pigment dyeing is bathed fabric is dyeed, the method has effectively been simplified treatment process, can guarantee treatment effect, make full use of again pre-treatment waste water, play the effect that reduces discharge of wastewater, saves the energy.
The specific embodiment
Below by embodiment, further illustrate the present invention.
Embodiment 1
Adopt following technique that pure cotton knitted fabric is implemented and processed:
(1) the pure cotton knitted fabric processing of scouringing and bleaching, treatment conditions are: hydrogen peroxide 6ml/L, hydrogen peroxide stabilizer 2g/L, non-ionic surface active agent 5g/L, pH11.0,95 ℃ of temperature, time 50min, bath raio 1: 15;
(2) after scouringing and bleaching and finishing dealing with, treatment fluid is cooled to 40 ℃, regulator solution pH to 6.8, adds catalase-3 g/L, and time 20min fully decomposes residual hydrogen peroxide;
(3) utilize above-mentioned raffinate preparation pigment dyeing liquid dyeing, condition is: the red 15%owf of cationic type coating, 40 ℃ of temperature, time 80min; After having dyeed, in raffinate, carry out fixation, color fixing condition is: cationic binder 50g/L, and 80 ℃ of temperature, time 30min, after completing takes out fabric centrifugal dehydration to liquid carrying rate 90%, at 100 ℃, dries, and then under 150 ℃ of conditions, bakes 8min.
Test above-mentioned scouringing and bleaching and the performance of pigment dyeing fabric, the results are shown in Table 1 and 2.
Embodiment 2
Adopt following technique that pure cotton knitted fabric is implemented and processed:
(1) the pure cotton knitted fabric processing of scouringing and bleaching, treatment conditions are: hydrogen peroxide 8ml/L, hydrogen peroxide stabilizer 3g/L, non-ionic surface active agent 5g/L, pH11.0,95 ℃ of temperature, time 60min, bath raio 1: 15;
(2) after scouringing and bleaching and finishing dealing with, treatment fluid is cooled to 40 ℃, regulator solution pH to 7.0, adds catalase 5g/L, and time 20min fully decomposes residual hydrogen peroxide;
(3) utilize above-mentioned raffinate preparation pigment dyeing liquid dyeing, condition is: the blue 10%owf of cationic type coating, 40 ℃ of temperature, time 70min; After having dyeed, in raffinate, carry out fixation, color fixing condition is: cationic binder 40g/L, and 80 ℃ of temperature, time 30min, after completing takes out fabric centrifugal dehydration to liquid carrying rate 90%, at 100 ℃, dries, and then under 150 ℃ of conditions, bakes 6min.
Test above-mentioned scouringing and bleaching and the performance of pigment dyeing fabric, the results are shown in Table 1 and 2.
Embodiment 3
Adopt following technique that pure cotton knitted fabric is implemented and processed:
(1) the pure cotton knitted fabric processing of scouringing and bleaching, treatment conditions are: hydrogen peroxide 10ml/L, hydrogen peroxide stabilizer 4g/L, non-ionic surface active agent 3g/L, pH11.2,95 ℃ of temperature, time 60min, bath raio 1: 15;
(2) after scouringing and bleaching and finishing dealing with, treatment fluid is cooled to 40 ℃, regulator solution pH to 7.0, adds catalase 5g/L, and time 20min fully decomposes residual hydrogen peroxide;
(3) utilize above-mentioned raffinate preparation pigment dyeing liquid dyeing, condition is: the yellow 5%owf of cationic type coating, temperature 45 C, time 60min; After having dyeed, in raffinate, carry out fixation, color fixing condition is: cationic binder 20g/L, and 80 ℃ of temperature, time 30min, after completing takes out fabric centrifugal dehydration to liquid carrying rate 90%, at 100 ℃, dries, and then under 150 ℃ of conditions, bakes 5min.
Test above-mentioned scouringing and bleaching and the performance of pigment dyeing fabric, the results are shown in Table 1 and 2.
The table 1 cotton fabrics performance of scouringing and bleaching
| Sample | Water imbibition (experiment of dripping) | Whiteness (WCIE) | Cotton seed hulls |
| Embodiment 1 | < 1 second | 81.7 | Nothing |
| Embodiment 2 | < 1 second | 83.6 | Nothing |
| Embodiment 3 | < 1 second | 84.9 | Nothing |
Table 2 cotton fabrics dyeability
Note: crock fastness is graded according to GB/T3920-1997; Soaping fastness is graded according to GB/T3921.3-1997.
Claims (7)
1. pure cotton knitted fabric is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that adopting following technique:
(1) the pure cotton knitted fabric pre-treatment of scouringing and bleaching, treatment conditions are: hydrogen peroxide 6-10ml/L, hydrogen peroxide stabilizer 2-4g/L, non-ionic surface active agent 3-5g/L, pH11.0-11.5,95 ℃ of temperature, time 50-60min, bath raio 1: 15;
(2) after scouringing and bleaching and finishing dealing with, treatment fluid is cooled to 40-50 ℃, regulator solution pH to 6.5-7.5, adds catalase-3-5g/L, and time 20min fully decomposes residual hydrogen peroxide;
(3) utilize above-mentioned raffinate preparation pigment dyeing liquid dyeing, condition is: cationic type coating 1-15%owf, temperature 40-50 ℃, time 60-80min; After having dyeed, carry out fixation, color fixing condition is: adhesive 10-50g/L, and 80 ℃ of temperature, time 20-30min, after completing takes out fabric centrifugal dehydration to liquid carrying rate 80-100%, at 100 ℃, dries, and then under 150 ℃ of conditions, bakes 3-8min.
2. pure cotton knitted fabric according to claim 1 is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that hydrogen peroxide used is that content of hydrogen peroxide is not less than 35% industrial hydrogen peroxide.
3. pure cotton knitted fabric according to claim 1 is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that hydrogen peroxide stabilizer used is the inorganic hydrogen peroxide bleaching stabilizer of commercially available bleaching.
4. pure cotton knitted fabric according to claim 1 is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that non-ionic surface active agent used is fatty alcohol polyethenoxy ether class non-ionic surface active agent paregal O-9.
5. pure cotton knitted fabric according to claim 1 is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that catalase used is the deoxidation catalase of dyeing routine.
6. pure cotton knitted fabric according to claim 1 is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that cationic type coating used is commercially available dyeing CATION mill base.
7. pure cotton knitted fabric according to claim 1 is scouringed and bleaching, pigment dyeing one bathes processing method, it is characterized in that adhesive therefor is commercially available dyeing or the cationic adhesive of stamp.
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| CN103046400A (en) * | 2013-01-04 | 2013-04-17 | 江苏金辰针纺织有限公司 | Fluorescent staining method for cotton fiber |
| CN103194907A (en) * | 2013-03-13 | 2013-07-10 | 上海嘉乐股份有限公司 | Pretreatment process for cotton knitted fabric low-temperature scouring and bleaching one bath two steps and washing deoxygenation one bath one step method |
| CN103290670A (en) * | 2013-05-16 | 2013-09-11 | 辽宁腾达集团股份有限公司 | Method for removing residual oxygen of pure-cotton knitted fabric by use of heat energy after bleaching |
| CN103643476A (en) * | 2013-12-02 | 2014-03-19 | 常熟市新蕾针织有限公司 | Processing method of ultra-white pure cotton knitted fabric |
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| CN104746359A (en) * | 2015-03-06 | 2015-07-01 | 南通大学 | Fluorescent paint dip-dyeing method of cotton fabrics |
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| CN104878630A (en) * | 2015-06-04 | 2015-09-02 | 浙江泛太平洋针织印染有限公司 | Dyeing process of cotton-knitted fabrics |
| CN106320028A (en) * | 2016-08-26 | 2017-01-11 | 浙江正宇纺织印染基地有限公司 | Bleaching and dyeing technique of purified cotton materials |
| CN107620203A (en) * | 2017-09-29 | 2018-01-23 | 石狮市瑞鹰纺织科技有限公司 | A kind of water-saving oxygen bleaching process of pure cotton knitted fabric and its blend fabric |
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| CN109235061A (en) * | 2018-07-06 | 2019-01-18 | 新天龙集团有限公司 | The more pattern cotton figured cloth metals of single side material infect color forming method |
| TR201912917A2 (en) * | 2019-08-27 | 2021-03-22 | Bursali Tekstil Sanayi Ve Ticaret Anonim Sirketi | Environmentally friendly dyeing process for cellulosic products |
| CN114318899A (en) * | 2021-12-28 | 2022-04-12 | 浙江彩虹庄印染有限公司 | Scouring, bleaching, dyeing and bath dyeing process for polyester-cotton knitted fabric |
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