CN103711006A - Method for dyeing cotton loose fiber with deep color by using indigo - Google Patents
Method for dyeing cotton loose fiber with deep color by using indigo Download PDFInfo
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- CN103711006A CN103711006A CN201310608712.7A CN201310608712A CN103711006A CN 103711006 A CN103711006 A CN 103711006A CN 201310608712 A CN201310608712 A CN 201310608712A CN 103711006 A CN103711006 A CN 103711006A
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Abstract
A disclosed method for dyeing cotton loose fiber with deep color by using indigo comprises: (1) at a certain temperature, performing loosing processing on cotton fiber in alkali solutions with different concentration for a certain time, wherein different loosing alkali-shrinkage processing concentration and processing time are selected according to the quality of cotton loose fiber; (2) under the conditions of sodium hydroxide and sodium hydrosulfite respectively with different concentration, firstly reducing indigo dye into a leuco-form sodium salt before dyeing, then preparing indigo solutions with different concentration for performing reduced dye leuco-form dyeing, and dyeing; and (3) after dyeing is finished at a certain time, performing hydrogen peroxide oxidation, water washing and drying, and testing K/S value, dry-rubbing fastness and wet rubbing fastness. The method is simple in operation, relatively low in equipment requirements and relatively good in color-increasing processing effect, can replace yarn indigo dyeing in a certain degree, helps to substantially save production cost and has good application prospect.
Description
Technical field
The invention belongs to textile dyeing research field, particularly relate to a kind of bipseudoindoxyl dye cotton bulk fibre color is increased to dark new dyeing method.
Background technology
The color that people present bipseudoindoxyl dye on denim traditionally calls mass-tone, and that the color of other dyestuffs is called is variegated, and as can be seen here, bipseudoindoxyl dye proportion in denim dyeing is larger.Bipseudoindoxyl dye is for denim dyeing, although its color by dyeing and washing these two processes, determine, dyeing course is the principal element that determines product final color.The technique of tradition indigo dyeing comprises: reducing dyes, contaminate leuco compound, oxidation, wash, soap, dry.Although present dyeing is accepted by most of producers, but because dyeing course is complicated, affect the many factors of dyeability, and the variation that condition changes the variation, particularly tone that will cause color and luster and tone a little is to some extent that people are quite unexpected.Another problem of indigo dyeing is that COLOR FASTNESS is bad, dyes not dark, must could obtain dark color through repeatedly contaminating, being oxidized.
The dyeing yarn so indigo cotton fiber falls apart, once or minority time hyperchromatic research there is higher using value, not only can economize on resources, also can greatly reduce costs.Traditional dyeing complicated operation is also avoided in cotton loose stock dyeing simultaneously, and fault is difficult to the defect of the aspects such as repairing.
Summary of the invention
The object of the invention is to solve the above-mentioned technical problem existing in prior art, provide a kind of cotton bulk fibre indigo hyperchromatic method.Utilize the present invention, cotton bulk fibre is processed, use once or lack time method of dyeing and dye darkly, not only can economize on resources, also can greatly reduce costs.Traditional dyeing complicated operation is also avoided in cotton loose stock dyeing simultaneously, and fault is difficult to the defect of the aspects such as repairing, has high using value.
For achieving the above object, the technical solution used in the present invention is as follows:
The indigo hyperchromatic method of cotton bulk fibre of the present invention, comprises the steps:
(1) by cotton bulk fibre under the effect of caustic soda, high-efficient penetrant, at the temperature of 60 ~ 95 ℃, process 10-60 minute, cotton bulk fibre is fully permeated;
(2) will permeate rear bulk fibre in the alkali lye of 150-320g/L, relaxation processes 10-40min at the temperature of 40-60 ℃, bath raio 1:50; The barium value of bulk fibre after Measurement preprocessing, judges the pretreated quality of cotton fiber according to barium value, and barium value is higher, shows that its adsorptivity is stronger, and barium value generally will be higher than 150.
((3) prepare indigo dye liquor, by bipseudoindoxyl dye fully reduction under certain density reductant and the composite condition of caustic soda, prepare indigo leuco compound dye liquor.Reductant used is as hypophosphorous acid, sodium hypophosphite, sodium dithionite, thiourea dioxide etc.
(4) the cotton bulk fibre after lax alkali contracting is processed is placed in indigo leuco compound and dyes, and after dying on fully, fully after oxidation, washes.
Any one in the promising nonionic penetrant of high-efficient penetrant, anion-permeable membrane agent, alkali-resistant penetrant or seeping at high temperature agent in described step (1).
Described nonionic penetrant comprises JFC, JFC-1, JFC-2, JFC-E; Anion-permeable membrane agent is fast penetrant T; Alkali-resistant penetrant comprises OEP-70, AEP; Seeping at high temperature agent is JFC-M.
Lax alkali treatment method in described step (2), the concentration of alkali is 150-320g/L.
Measurement in described step (2), characterizing method adopt barium value method.
Reductant in described step (3) is the reductants such as hypophosphorous acid, sodium hypophosphite, sodium dithionite, thiourea dioxide.
Dyeing time in described step (4) is 10 ~ 40min, and temperature is room temperature-40 ℃.
Oxidation in described step (4) comprises air oxidation, hydrogen peroxide oxidation.
The present invention's number of times that dyes is less, generally once dyes darkly.
The present invention, according to the alkaline-resisting character of cotton fiber, carries out relaxation processes to cotton bulk fibre in the caustic soda of high concentration, and after processing, cotton bulk fibre significantly promotes Dye Adsorption ability, and the method is applied to indigo loose stock dyeing, can obtain dark heavy colour pool.
Beneficial effect of the present invention is as follows:
(1) the present invention is easy to operate, and technique is simple, operability, favorable reproducibility;
(2) method that the present invention uses once or few time is dyeed is dyed darkly, greatly reduces energy consumption, economizes on resources and cost.
(3) production of denim is warp dyeing at present, has certain limitation.If production knitted denim need to pass through warp dyeing, and then dividing sinker out, carries out knitting production, process is loaded down with trivial details.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
Cotton bulk fibre, under the effect of caustic soda 2g/l, high-efficient penetrant JFC0.1g/l, is processed 20 minutes at the temperature of 85 ℃, cotton bulk fibre is fully permeated.Then by bulk fibre after infiltration in the NaOH of 240g/l solution after relaxation processes 10min, barium value is 135, prepare indigo dye liquor (indigo 2g/l, sodium hydrosulfite 48g/l, caustic soda 20g/l), at 30 ℃, cotton bulk fibre after lax alkali contracting is processed is placed in dye bath and dyes 20 minutes, after dying on fully, with 10ml/l hydrogen peroxide, is fully oxidized 10min, washing, k/s value is 5.608.
Embodiment 2
Cotton bulk fibre, under the effect of caustic soda 2g/l, high-efficient penetrant JFC0.1g/l, is processed 20 minutes at the temperature of 90 ℃, cotton bulk fibre is fully permeated.Then by bulk fibre after infiltration in the NaOH of 260g/l solution after relaxation processes 20min, barium value is 138, prepare indigo dye liquor (indigo 2.5g/l, sodium hydrosulfite 60g/l, caustic soda 25g/l), at 35 ℃, cotton bulk fibre after lax alkali contracting is processed is placed in dye bath and dyes 20 minutes, after dying on fully, with 10 ml/l hydrogen peroxide, is fully oxidized 10min, washing, k/s value is 8.9.
Embodiment 3
Cotton bulk fibre, under the effect of caustic soda 2g/l, high-efficient penetrant JFC0.1g/l, is processed 20 minutes at the temperature of 95 ℃, cotton bulk fibre is fully permeated.Then by bulk fibre after infiltration in the NaOH of 280g/l solution after relaxation processes 30min, barium value is 141, prepare indigo dye liquor (indigo 3g/l, sodium hydrosulfite 72g/l, caustic soda 30g/l), at 40 ℃, cotton bulk fibre after lax alkali contracting is processed is placed in dye bath and dyes 20 minutes, after dying on fully, with 10ml/l hydrogen peroxide, is fully oxidized 10min, washing, k/s value is 12.98.
Claims (8)
1. the indigo hyperchromatic method of cotton bulk fibre, is characterized in that comprising the steps:
(1) by cotton bulk fibre under the effect of caustic soda, high-efficient penetrant, at the temperature of 60 ~ 95 ℃, process 10-60 minute, cotton bulk fibre is fully permeated;
(2) will permeate rear bulk fibre in the alkali lye of 150-320g/L, relaxation processes 10-40min at the temperature of 40-60 ℃, bath raio 1:50; The barium value of bulk fibre after Measurement preprocessing, judges the pretreated quality of cotton fiber according to barium value, and barium value is higher, shows that its adsorptivity is stronger, and barium value generally will be higher than 150,
(3) prepare indigo dye liquor, by bipseudoindoxyl dye fully reduction under certain density reductant and the composite condition of caustic soda, prepare indigo leuco compound dye liquor,
Reductant used is any one in hypophosphorous acid, sodium hypophosphite, sodium dithionite, thiourea dioxide;
(4) the cotton bulk fibre after lax alkali contracting is processed is placed in indigo leuco compound and dyes, and after dying on fully, fully after oxidation, washes.
2. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: any one in the promising nonionic penetrant of high-efficient penetrant, anion-permeable membrane agent, alkali-resistant penetrant or seeping at high temperature agent in described step (1).
3. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: described nonionic penetrant comprises JFC, JFC-1, JFC-2, JFC-E; Anion-permeable membrane agent is fast penetrant T; Alkali-resistant penetrant comprises OEP-70, AEP; Seeping at high temperature agent is JFC-M.
4. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: the lax alkali treatment method in described step (2), the concentration of alkali is 150-320g/L.
5. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: the measurement in described step (2), characterizing method adopt barium value method.
6. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: the reductant in described step (3) is the reductants such as hypophosphorous acid, sodium hypophosphite, sodium dithionite, thiourea dioxide.
7. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: the dyeing time in described step (4) is 10 ~ 40min, and temperature is room temperature-40 ℃.
8. the indigo hyperchromatic method of cotton bulk fibre according to claim 1, is characterized in that: the oxidation in described step (4) comprises air oxidation, hydrogen peroxide oxidation.
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| CN201310608712.7A CN103711006A (en) | 2013-11-25 | 2013-11-25 | Method for dyeing cotton loose fiber with deep color by using indigo |
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| CN201310608712.7A CN103711006A (en) | 2013-11-25 | 2013-11-25 | Method for dyeing cotton loose fiber with deep color by using indigo |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805706A (en) * | 2015-04-02 | 2015-07-29 | 北京服装学院 | Reduction system for vat dye or sulfur dyestuff dyeing and reduction method |
| CN105401463A (en) * | 2015-11-04 | 2016-03-16 | 浙江理工大学 | One-time deep dyeing method for cotton fiber employing indigo dye |
| CN105568456A (en) * | 2016-02-22 | 2016-05-11 | 源兴纺织（深圳）有限公司 | Production technology for indigo cotton yarn |
| CN106336685A (en) * | 2016-08-24 | 2017-01-18 | 张永成 | Method for extracting natural dye by using biological fermentation method, and applications thereof |
| CN106811990A (en) * | 2015-11-27 | 2017-06-09 | 苑少纯 | A kind of dyeing of indigo uniformly dyeing color cotton linen |
| CN107031224A (en) * | 2016-11-28 | 2017-08-11 | 江苏格美高科技发展有限公司 | A kind of canvas of suitable indigo digital printings and preparation method thereof |
| CN107142716A (en) * | 2017-05-12 | 2017-09-08 | 常州大学 | A kind of preparation method with uvioresistant function colored textile |
| CN109371714A (en) * | 2018-10-30 | 2019-02-22 | 山西彩佳印染有限公司 | A kind of cotton fabric continuous dyeing of vat dye is oxidation reinforced to remove the method soaped |
| CN109403092A (en) * | 2018-10-11 | 2019-03-01 | 浙江彩燕新材料有限公司 | The single bath process short route dyeing of fabric |
| CN109487581A (en) * | 2018-10-30 | 2019-03-19 | 山西彩佳印染有限公司 | A kind of cotton fabric reducing dye batch dyeing is oxidation reinforced to remove the method soaped |
| CN111455518A (en) * | 2020-01-19 | 2020-07-28 | 苏州中纺学面料产业研究院 | Method for manufacturing colorful jean yarns, and fabric and garment manufactured by using yarns |
| CN112064254A (en) * | 2020-09-29 | 2020-12-11 | 绍兴国周纺织整理有限公司 | Cold-batch dyeing process for plant indigo |
| CN113215837A (en) * | 2021-04-07 | 2021-08-06 | 苏州中纺学面料产业研究院 | Natural durable antibacterial loose fiber and preparation method thereof |
| CN115710829A (en) * | 2022-11-17 | 2023-02-24 | 浙江鑫兰纺织有限公司 | Indigo jean dyeing auxiliary and dyeing process |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805706A (en) * | 2015-04-02 | 2015-07-29 | 北京服装学院 | Reduction system for vat dye or sulfur dyestuff dyeing and reduction method |
| CN105401463A (en) * | 2015-11-04 | 2016-03-16 | 浙江理工大学 | One-time deep dyeing method for cotton fiber employing indigo dye |
| CN106811990A (en) * | 2015-11-27 | 2017-06-09 | 苑少纯 | A kind of dyeing of indigo uniformly dyeing color cotton linen |
| CN105568456A (en) * | 2016-02-22 | 2016-05-11 | 源兴纺织（深圳）有限公司 | Production technology for indigo cotton yarn |
| CN106336685A (en) * | 2016-08-24 | 2017-01-18 | 张永成 | Method for extracting natural dye by using biological fermentation method, and applications thereof |
| CN107031224A (en) * | 2016-11-28 | 2017-08-11 | 江苏格美高科技发展有限公司 | A kind of canvas of suitable indigo digital printings and preparation method thereof |
| CN107142716A (en) * | 2017-05-12 | 2017-09-08 | 常州大学 | A kind of preparation method with uvioresistant function colored textile |
| CN109403092A (en) * | 2018-10-11 | 2019-03-01 | 浙江彩燕新材料有限公司 | The single bath process short route dyeing of fabric |
| CN109371714A (en) * | 2018-10-30 | 2019-02-22 | 山西彩佳印染有限公司 | A kind of cotton fabric continuous dyeing of vat dye is oxidation reinforced to remove the method soaped |
| CN109487581A (en) * | 2018-10-30 | 2019-03-19 | 山西彩佳印染有限公司 | A kind of cotton fabric reducing dye batch dyeing is oxidation reinforced to remove the method soaped |
| CN111455518A (en) * | 2020-01-19 | 2020-07-28 | 苏州中纺学面料产业研究院 | Method for manufacturing colorful jean yarns, and fabric and garment manufactured by using yarns |
| CN112064254A (en) * | 2020-09-29 | 2020-12-11 | 绍兴国周纺织整理有限公司 | Cold-batch dyeing process for plant indigo |
| CN112064254B (en) * | 2020-09-29 | 2022-08-16 | 绍兴国周纺织整理有限公司 | Cold-batch dyeing process for plant indigo |
| CN113215837A (en) * | 2021-04-07 | 2021-08-06 | 苏州中纺学面料产业研究院 | Natural durable antibacterial loose fiber and preparation method thereof |
| CN113215837B (en) * | 2021-04-07 | 2023-06-30 | 苏州中纺学面料产业研究院 | Natural durable antibacterial loose fiber and preparation method thereof |
| CN115710829A (en) * | 2022-11-17 | 2023-02-24 | 浙江鑫兰纺织有限公司 | Indigo jean dyeing auxiliary and dyeing process |
| CN115710829B (en) * | 2022-11-17 | 2024-04-16 | 浙江鑫兰纺织有限公司 | Indigo jean dyeing auxiliary agent and dyeing process |
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