CN106676873A - Low-temperature bleaching and active dyeing one-bath treatment method for purified cotton knitted fabrics - Google Patents
Low-temperature bleaching and active dyeing one-bath treatment method for purified cotton knitted fabrics Download PDFInfo
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- CN106676873A CN106676873A CN201710023840.3A CN201710023840A CN106676873A CN 106676873 A CN106676873 A CN 106676873A CN 201710023840 A CN201710023840 A CN 201710023840A CN 106676873 A CN106676873 A CN 106676873A
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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
- D06P1/44—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
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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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/66—Natural or regenerated cellulose using reactive dyes
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Abstract
The invention discloses a low-temperature bleaching and active dyeing one-bath treatment method for purified cotton knitted fabrics, and belongs to the technical field of textile printing and dyeing. The method adopts the following processes: (1) performing low-temperature active bleaching treatment on the purified cotton knitted fabrics, wherein waste liquid does not need to be drained after the treatment is completed; (2) after the bleaching treatment is completed, adding deoxidizing enzyme into residual bleaching liquid to make residual hydrogen peroxide fully removed; (3) preparing active dyeing liquid by utilizing the residual liquid, dyeing the purified cotton knitted fabrics, and adding an alkaline agent for fixation; (4) finally, washing, soaping, washing and naturally air-drying the dyed fabrics. According to the low-temperature bleaching and active dyeing one-bath treatment method for the purified cotton knitted fabrics, the two processes of low-temperature bleaching and active dyeing for the purified cotton knitted fabrics are carried out in the same treatment bath, so the process flow can be shortened, the dyeing performance of cotton knitted fabrics is ensured, the residual bleaching liquid is recycled, the water saving and energy saving effects are obvious, and the environmental pollution caused by waste printing and dyeing liquid is reduced.
Description
Technical field
The present invention relates to a kind of pure cotton knitted fabric cold bleaching and the processing method of the bath of vital staining one, belong to textile printing and dyeing
Technical field.
Background technology
There is a large amount of impurity such as hemicellulose, pectin, waxiness, cotton seed hullss, natural pigment etc. on pure cotton knitting fabric, make to knit
Damp jaundice is looked for, water absorption is very poor, affect its properties.Therefore, concise for the purpose of carrying out to remove natural impurity and
Bleaching, makes fabric obtain good water absorption and clean outward appearance, is beneficial to the carrying out of the processing such as follow-up dyeing.
In order to overcome traditional hydrogen peroxide bleaching highly energy-consuming and reduce the defect of fibre strength, researchers have developed
Bleach-activating, adds it to H2O2After aqueous solution, the carbonylic carbon atom in its molecule can be subject to H2O2Or H2O2Analyte
Nucleophillic attack, generates in the original location the higher peroxy acid of oxidizing potential more high activity, so that bafta can be at lower temperatures
Bleached, fibre damage can be reduced and power consumption is reduced.And hydrogen peroxide present in bleaching process aoxidizes can reactive dye
Discoloration, therefore the hydrogen peroxide remained on fabric must fully be removed before dyeing, industrially generally use high-temperature water
Wash method or catalase edman degradation Edman remove on fabric remain hydrogen peroxide after washed again, finally by fabric drying with
Just the processing such as follow-up dyeing are carried out.Regular activated dyeing process generally needs the inorganic salt (chlorination for adding 30-150g/L
Sodium, Matrii Sulfas Exsiccatus) rush dye is carried out, just add sodium carbonate to carry out fixation after upper dye 30-60min.
In a word, in existing pure cotton knitted fabric dyeing and finishing processing method, fabric at low temperature bleaching and reactive dyestuffs in exhaustion are
Two separate processes.After the completion of bafta bleaching pre-treatment, often bleaching liquid is discharged, when carrying out consequent activities
Cleaning new water is reinjected during dyeing carries out dye bath preparation.Therefore, current technology water consumption, energy consumption are all larger, production efficiency
It is relatively low.
The content of the invention
In order to solve the above problems, the present invention carries out the residual liquid after the completion of cold bleaching operation to be used to live after proper treatment
Property dyeing bath preparation, realize the pre-treatment of pure cotton knitted fabric cold bleaching and vital staining one bath processing, work can be shortened
Skill flow process, guarantee cotton fabric dyeing process performance, and bleach residue is reused, water saving, energy-saving effect substantially, and reduce print
Pollution of the dye waste liquid to environment.
The pure cotton knitted fabric cold bleaching and vital staining one bath processing method of the present invention, by the use of bleach residue as follow-up
The dye liquor of cotton with active dyeing, the sodium citrate used using bleaching process serves as the accelerant of dyeing course, contaminates on one side
On one side directly fixation, can shortened process, ensure cotton fabric dyeing process performance, and to waste water and reagent recycling, reduce
Power consumption and environmental pollution.
The method of the present invention, comprises the following steps：
(1) low-temperature activated bleaching pre-treatment：Pure cotton knitted fabric dipping cationic bleach activation system is carried out into bleaching：
Wherein, containing cationic bleach activators, hydrogen peroxide, excessive acid-base modifier, penetrating agent, double in cationic bleach activation system
Oxygen water stabilizer；
(2) after the completion of bleaching, being directly added into catalase makes the hydrogen peroxide of residual fully decompose；
(3) dyeing, fixation：Reactive dye, pure cotton knitted fabric dipping are added to dye 0- in residual liquid obtained in the previous step
60min, then fixation；
(4) post processing：Fabric is taken out after the completion of dye fixation, soap boiling is carried out after washing, washed, then dried.
In one embodiment, acid-base modifier used is sodium citrate.
In one embodiment, the bleaching of the step (1), bath raio 10:1~20:1, during 25~50 DEG C of temperature
Between 30~90min.
In one embodiment, in step (1) the cationic bleach activation system, containing cationic bleach activators
10~12g/L, 3~3.8g/L of hydrogen peroxide, 75~88g/L of sodium citrate, 0.1~5g/L of penetrating agent, hydrogen peroxide stabilizer 0.1~
5g/L。
In one embodiment, in the cationic bleach activation system of the step (1), containing cationic bleach activation
Agent 11g/L, hydrogen peroxide 3.4g/L, sodium citrate 83g/L, penetrating agent 0.5g/L, hydrogen peroxide stabilizer 0.5g/L.
In one embodiment, the step (2) is to add catalase 4mL, is processed under temperature 50 C
15min。
In one embodiment, the dyeing time of the step (3) is 0~5min.
In one embodiment, the dyeing time of the step (3) is 0~10s.
In one embodiment, the reactive dye addition of the step (3) is 1%owf.
In one embodiment, the dyeing of the step (3), color fixing temperature are 55 DEG C~65 DEG C.
In one embodiment, the color fixing condition of the step (3) is：Alkaline agent 15g/L, temperature 60 C, time
60min。
In one embodiment, the soap boiling condition of the step (4) is：Alkaline agent 2g/L, soap flakes 2g/L, bath raio 30:1,
90 DEG C of temperature, time 10min；A large amount of deionized water wash are used after process, is finally dried naturally.
In one embodiment, cationic bleach activators used are TBCC, and above-mentioned TBCC full name are N- [4- (three second
Base ammonium methylene) benzoyl group] caprolactam chloride.
In one embodiment, hydrogen peroxide used is the pure grade hydrogen peroxide of analysis that content of hydrogen peroxide is 30%.
In one embodiment, penetrating agent used is fatty alcohol polyethenoxy ether class nonionic surfactant JFC.
In one embodiment, hydrogen peroxide stabilizer used is commercially available bleaching hydrogen peroxide bleaching stabilizer DM1403.
In one embodiment, catalase used is the conventional deoxidation catalase of dyeing.
In one embodiment, reactive dye used are commercially available dyeing Remazol RGB red reactive dyes.
In one embodiment, alkaline agent used is the pure grade anhydrous sodium carbonate of analysis.
In one embodiment, methods described is specifically：
(1) low-temperature activated bleaching pre-treatment：Cationic bleach activators 11g/L, hydrogen peroxide 3.4g/L, sodium citrate 83g/
L, penetrating agent 0.5g/L, hydrogen peroxide stabilizer 0.5g/L, bath raio is 15:1, temperature 50 C, 60 minutes time.
(2) after the completion of bleaching, catalase 4mL is directly added into, temperature 50 C, time 15min makes the double of residual
Oxygen water fully decomposes；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60
DEG C, upper dye time 0-60min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time
60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath
Than 30:1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
Cationic bleach activators used of the invention are N- [4- (triethyl ammonium methylene) benzoyl group] caprolactam chloride
(abbreviation TBCC), hydrogen peroxide is the pure grade hydrogen peroxide of analysis that content of hydrogen peroxide is 35%, and cationic bleach activators are added
To after aqueous hydrogen peroxide solution, the carbonylic carbon atom in its molecule can be subject to H2O2Or H2O2The nucleophillic attack of analyte, in the original location
The higher peroxy acid of oxidizing potential more high activity is generated, so that bafta can be bleached at lower temperatures, can be reduced
Fibre damage simultaneously reduces power consumption.Hydrogen peroxide stabilizer is commercially available bleaching hydrogen peroxide bleaching stabilizer DM1403, it is ensured that hydrogen peroxide exists
Effectively decompose in bleaching process, will not waste and excessive damage cotton fiber.Acid-base modifier is sodium citrate, and one is for adjusting
Bleaching liquor pH is maintaining bleach system in weakly acidic pH environment, it is ensured that bleaching reaches optimum efficiency；Two is for serving as vital staining mistake
The accelerant of journey, promotes absorption and upper dye of the dyestuff to cotton fiber, it is ensured that obtain good Color.Penetrating agent is fatty alcohol
Polyethenoxy ether class nonionic surfactant JFC, plays osmosiss, optimizes Color.The catalase of addition is print
The conventional deoxidation catalase of dye industry, can play fast decoupled effect to hydrogen peroxide, be allowed to decompose completely in order to avoid shadow
The follow-up Colour Difference of sound.Reactive dye are commercially available Remazol RGB red reactive dyes, for cotton fabric dyeing process.After the completion of dyeing,
Fixation treatment is carried out to improve color fastness of the reactive dye on fabric, alkaline agent used is the pure grade anhydrous sodium carbonate of analysis.Fixation
Afterwards fabric Jing washes, soaps and wash again, removes the dyestuff of upper dye fixation, hydrolised dye and other chemical reagent on fabric, with
Improve fabric color, fastness and cleanliness factor.
Beneficial effects of the present invention：
The pure cotton knitted fabric cold bleaching of the present invention bathes processing method with vital staining one, and bleaching waste liquor is suitably located
Prepare vital staining bath after reason to dye fabric, the method is effectively simplified treatment process, both can guarantee that treatment effect, and
Pre-treatment waste water is made full use of, reduction discharge of wastewater, the effect of save energy is played.
Specific embodiment
The present invention is further illustrated below by embodiment, but the present invention is not limited to listed example.
Embodiment 1
Pure cotton knitted fabric execution is processed using following technique：
(1) pure cotton knitted fabric low-temperature activated bleaching pre-treatment, treatment conditions are：Cationic bleach activators 11g/L, dioxygen
Water 3.4g/L, sodium citrate 83g/L, penetrating agent 0.5g/L, hydrogen peroxide stabilizer 0.5g/L, bath raio is 15:1, temperature 50 C, when
Between 60 minutes.
(2) after the completion of bleaching, catalase 4mL, time 15min are directly added into, make the hydrogen peroxide of residual abundant
Decompose；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60
DEG C, upper dye time 60min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath
Than 30:1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
The performance of above-mentioned dyed fabric is tested, 1 is the results are shown in Table.
Embodiment 2
Pure cotton knitted fabric execution is processed using following technique：
(1) pure cotton knitted fabric low-temperature activated bleaching pre-treatment, treatment conditions are：Cationic bleach activators 11g/L, dioxygen
Water 3.4g/L, sodium citrate 83g/L, penetrating agent 0.5g/L, hydrogen peroxide stabilizer 0.5g/L, bath raio is 15:1, temperature 50 C, when
Between 60 minutes.
(2) after the completion of bleaching, catalase 4mL, time 15min are directly added into, make the hydrogen peroxide of residual abundant
Decompose；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60
DEG C, upper dye time 0min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath
Than 30:1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
The performance of above-mentioned dyed fabric is tested, 1 is the results are shown in Table.
Embodiment 3
Pure cotton knitted fabric execution is processed using following technique：
(1) pure cotton knitted fabric low-temperature activated bleaching pre-treatment, treatment conditions are：Cationic bleach activators 10g/L, dioxygen
Water 3g/L, sodium citrate 78g/L, penetrating agent 1g/L, hydrogen peroxide stabilizer 1g/L, bath raio is 10:1,30 DEG C of temperature, 90 points of time
Clock.
(2) after the completion of bleaching, catalase 4mL is directly added into, under temperature 50 C 15min is processed, make residual
Hydrogen peroxide fully decompose；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60
DEG C, upper dye time 3min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath
Than 30:1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
The performance of above-mentioned dyed fabric is tested, 1 is the results are shown in Table.
Embodiment 4
Pure cotton knitted fabric execution is processed using following technique：
(1) pure cotton knitted fabric low-temperature activated bleaching pre-treatment, treatment conditions are：Cationic bleach activators 12g/L, dioxygen
Water 3.8g/L, sodium citrate 88g/L, penetrating agent 2g/L, hydrogen peroxide stabilizer 2g/L, bath raio is 20:1,40 DEG C of temperature, the time 35
Minute.
(2) after the completion of bleaching, catalase 4mL is directly added into, under temperature 50 C 15min is processed, make residual
Hydrogen peroxide fully decompose；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60
DEG C, upper dye time 5min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath
Than 30:1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
The performance of above-mentioned dyed fabric is tested, 1 is the results are shown in Table.
Control 1
Pure cotton knitted fabric execution is processed using following technique：
(1) cationic bleach activators 11g/L, hydrogen peroxide 3.4g/L, sodium bicarbonate 3.5g/L, penetrating agent 0.5g/L, it is double
Oxygen water stabilizer 0.5g/L, bath raio is 15:1, temperature 50 C, 60 minutes time.Wash after bafta drift and dry.
(2) reactive dye 1%owf, temperature 60 C, Sodium Chloride 80g/L, upper dye time 50min；Carry out after the completion of dyeing solid
Color, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 30min.
(3) washed after the completion of dyeing, soap boiling, soap boiling condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath raio 30:1, temperature
90 DEG C, time 10min, after process with a large amount of deionized water wash, dry.
The performance of above-mentioned dyed fabric is tested, 1 is the results are shown in Table.
Control 2
Pure cotton knitted fabric execution is processed using following technique：
(1) pure cotton knitted fabric low-temperature activated bleaching pre-treatment, treatment conditions are：Cationic bleach activators 11g/L, dioxygen
Water 3.4g/L, sodium bicarbonate 83g/L, penetrating agent 0.5g/L, hydrogen peroxide stabilizer 0.5g/L, bath raio is 15:1, temperature 50 C, when
Between 60 minutes.
(2) after the completion of bleaching, catalase 4mL, time 15min are directly added into, make the hydrogen peroxide of residual abundant
Decompose；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60
DEG C, upper dye time 0min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath
Than 30:1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
The performance of above-mentioned dyed fabric is tested, 1 is the results are shown in Table.
The pure cotton knitted fabric dyeability of table 1
Note：Colour fastness to rubbing is graded according to GB/T 3920-2008；Colour fasteness to sunlight is according to GB/T 8427-2008
Grading；Washing color fastness is graded according to GB/T 3921-2008.
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any to be familiar with this skill
The people of art, without departing from the spirit and scope of the present invention, can do various changes and modification, therefore the protection model of the present invention
Enclosing should be by being defined that claims are defined.
Claims (10)
1. the processing method that a kind of pure cotton knitted fabric cold bleaching is bathed with vital staining one, it is characterised in that methods described includes
Following steps：
(1) low-temperature activated bleaching pre-treatment：Pure cotton knitted fabric dipping cationic bleach activation system is carried out into bleaching：Its
In, containing cationic bleach activators, hydrogen peroxide, excessive acid-base modifier, penetrating agent, dioxygen in cationic bleach activation system
Water stabilizer；
(2) after the completion of bleaching, being directly added into catalase makes the hydrogen peroxide of residual fully decompose；
(3) dyeing, fixation：Reactive dye, pure cotton knitted fabric dipping are added to dye 0-60min in residual liquid obtained in the previous step,
Then fixation；
(4) post processing：Fabric is taken out after the completion of dye fixation, soap boiling is carried out after washing, washed, then dried.
2. method according to claim 1, it is characterised in that the acid-base modifier is sodium citrate.
3. method according to claim 1, it is characterised in that the dyeing time of the step (3) is 0~5min.
4. method according to claim 1, it is characterised in that the dyeing time of the step (3) is 0~10s.
5. method according to claim 1, it is characterised in that the bleaching of the step (1), bath raio 10:1~20:
1,25~50 DEG C of temperature, 30~90min of time.
6. method according to claim 1, it is characterised in that in step (1) the cationic bleach activation system, contain
10~12g/L of cationic bleach activators, 3~3.8g/L of hydrogen peroxide, 75~88g/L of sodium citrate, 0.1~5g/L of penetrating agent,
0.1~5g/L of hydrogen peroxide stabilizer.
7. method according to claim 1, it is characterised in that the step (2) is to add catalase 4mL, in temperature
15min is processed at 50 DEG C of degree.
8. method according to claim 1, it is characterised in that the dyeing of the step (3), color fixing temperature are 55 DEG C~65
℃。
9. method according to claim 1, it is characterised in that cationic bleach activators used are TBCC, above-mentioned TBCC
Full name is N- [4- (triethyl ammonium methylene) benzoyl group] caprolactam chloride.
10. method according to claim 1, it is characterised in that methods described is specifically：
(1) low-temperature activated bleaching pre-treatment：Cationic bleach activators 11g/L, hydrogen peroxide 3.4g/L, sodium citrate 83g/L, ooze
Saturating agent 0.5g/L, hydrogen peroxide stabilizer 0.5g/L, bath raio is 15:1, temperature 50 C, 60 minutes time.
(2) after the completion of bleaching, catalase 4mL is directly added into, temperature 50 C, time 15min makes the hydrogen peroxide of residual
Fully decompose；
(3) prepare reactive dyeing liquid using above-mentioned residual liquid and dye, condition is：Reactive dye 1%owf, temperature 60 C, on
Dye time 0-60min；Fixation is carried out after the completion of dyeing, color fixing condition is：Alkaline agent 15g/L, temperature 60 C, time 60min；
(4) contaminate and take out in fabric after the completion of fixation, soap boiling is carried out after washing, condition is：Alkaline agent 2g/L, soap flakes 2g/L, bath raio 30:
1,90 DEG C of temperature, time 10min uses a large amount of deionized water wash after process, finally dries naturally.
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| CN111826974A (en) * | 2020-07-27 | 2020-10-27 | 湖州市千金金耀制丝有限公司 | Prodigiosin dyeing method of pure cotton fabric |
| CN113308912A (en) * | 2021-04-20 | 2021-08-27 | 深圳全棉时代科技有限公司 | Low-twist soft all-cotton fabric and preparation method thereof |
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| CN108914542A (en) * | 2018-05-15 | 2018-11-30 | 周晓东 | A kind of fabric bleaching agent |
| CN111733588A (en) * | 2020-06-11 | 2020-10-02 | 台州同兴印染有限公司 | Knitted fabric printing and dyeing pretreatment liquid, preparation method and knitted fabric dyeing process |
| CN111733588B (en) * | 2020-06-11 | 2022-10-25 | 台州同兴印染有限公司 | Knitted fabric printing and dyeing pretreatment liquid, preparation method and knitted fabric dyeing process |
| CN111826974A (en) * | 2020-07-27 | 2020-10-27 | 湖州市千金金耀制丝有限公司 | Prodigiosin dyeing method of pure cotton fabric |
| CN113308912A (en) * | 2021-04-20 | 2021-08-27 | 深圳全棉时代科技有限公司 | Low-twist soft all-cotton fabric and preparation method thereof |
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