CN104790226A - Anti-staining dyeing method of polyamide-cotton fabric - Google Patents
Anti-staining dyeing method of polyamide-cotton fabric Download PDFInfo
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Abstract
The invention discloses an anti-staining dyeing method of cotton-polyamide fabric. The anti-staining dyeing method comprises the following steps: at the temperature of 40 DEG C, sequentially adding a dye and a dyeing auxiliary into fabric; after keeping the temperature for 10 minutes, adding sodium carbonate of 0.05-0.1g/L, controlling the PH value of a dye bath to be 8-9 and keeping the temperature for 30 minutes, and then adding sodium carbonate of 15-20g/L; raising the temperature to be 50 DEG C by the rate of 1DEG C/min, and keeping the temperature for 30 minutes so as to perform color fixation; raising the temperature to be 70 DEG C by the rate of 2DEG C/min, keeping the temperature for 15 minutes, and completing the dying process; reducing the temperature to be 45 DEG C to perform post processing, so as to obtain the dyed fabric. The used dye is an active dye, and the problem of the serious staining of vinyl-sulfone type active dyes on polyamide fabric is mainly solved. The anti-staining dyeing method disclosed by the invention has the advantages that the procedure operation is feasible, the utilization rate of the dyes is high, the color fastness of the dyed fabrics is good, and the like; the anti-staining dyeing method can be applied to the technical field of dying of polyamide-cotton blended fabric.
Description
Technical field
The present invention relates to the bright and beautiful cotton releasing color method of REACTIVE DYES dye, concrete grammar improves the degree of fixation of REACTIVE DYES on cotton in the cotton process of dye, reduce the staining of REACTIVE DYES on polyamide fibre simultaneously, finally reach the jacquard weave of DYED FABRICS polyamide fibre and stay object that the is white and washing fastness of raising dyed shell fabrics.
Background technology
Silk-cotton fabric is because possessing excellent taking quite by the trust of consumer in the market, and the high-strength wearable that bright and beautiful cotton blended fabric has cotton sucting wet air permeability and polyamide fibre concurrently is deeply loved by the public.But simultaneously because performance difference that is cotton and brocade two kinds of fibers is comparatively large, as comparatively large in adopted One Bath Dyeing Process component difficulty, also cannot meet polyamide fibre jacquard weave stays white extra high requirement, so two bath process must be adopted just to reach releasing effect simultaneously.Because REACTIVE DYES adopts 60 DEG C of constant temperature method colouring methods comparatively general, and REACTIVE DYES dyes particularly serious to the staining of polyamide fibre brocade under constant temperature, the REACTIVE DYES that general printing and dyeing mill can rely on DYE PRODUCTION business and recommend some less to polyamide fibre staining especially, because the structures shape of REACTIVE DYES part dyestuff cannot arrive the requirement of anti-polyamide fibre staining, finally abandon because the uneven panchromatic pool of chromatogram is bright-coloured not even if part product can reach requirement, the black series of products of colorant match headed by reactive black 5 # are difficult to substitute because of the low dyeing of lattice valency comparatively deeply always, how to improve dyeing and reach resist printing effect and become the problem that printing and dyeing mill comparatively pays close attention to.
Along with the raising day by day of living standard, the requirement of people to textile product is also more and more higher, thus the requirement of textile dyeing on properties is day by day harsh, make great efforts to improve the degree of fixation of dyestuff and the dyefastness of textiles, finally reach minimizing dyeing waste-water, satisfy the demands of consumers as final target.
REACTIVE DYES routinely technique dyes comparatively serious to polyamide fibre staining on silk-cotton fabric, particularly based on the black series of the colorant match of reactive black 5 #, and active yellow 107#, reactive navy blue 250#, Reactive Red 2 78#, the staining of reactive blue 220# vinyl-sulfone reactive dyes on polyamide fibre are obvious especially.Existing method is generally by adopting special auxiliary agent to improve releasing effect, such as conventional Dispersant MF, NNO and nylon resist alleviate dye REACTIVE DYES to the colouring of polyamide fibre, this type of adjuvant surfactants can reduce degree of fixation when reactive dyeing, have impact on the utilization rate of dyestuff, increase the color and luster of dyeing waste-water and the amount of COD, bring certain pressure to environmental protection; Some have dispersion, solubilising, the functional auxiliary agent of slow dye more or less containing APEO simultaneously, because APEO is studied the harm that environment is potential widely and proves, thus each state has all formulated the content of relevant criterion and regulation restriction APEO, and need in dyeing the amount of effective control APEO, for this reason can only less with and forbid this analog assistant; And because of REACTIVE DYES characteristic exist the defect to DYED FABRICS cannot avoid, therefore appropriate design colouring method become everybody make great efforts target.
Summary of the invention
The invention provides a kind of bright and beautiful cotton dyeing method of anti-staining, this colouring method can reduce the staining of active material on polyamide fibre, improve the Dry Sack rate of bright and beautiful cotton dyeing and every fastness index, the quality requirements of bright and beautiful cotton dyeing fabric can be reached, and the object of real energy-saving and emission-reduction.
(1) under 40 DEG C ~ 45 DEG C conditions, add in water-bath successively and treat that dyeing and weaving thing, dyestuff and accelerant carry out the process of suction look;
Described treats that dyeing and weaving thing is bright and beautiful cotton blended fabric;
(2) add soda ash in suction look even backward dyeing system, the process of upper dye is carried out in insulation;
The concentration of the soda ash added in dyeing system is 0.05 ~ 0.1g/L;
(3) above contaminate evenly, add soda ash and be at the uniform velocity warming up to 50-55 DEG C, then preliminary fixation is carried out in insulation, is incubated and completes preliminary fixation after 30 minutes;
The concentration of the soda ash added in dyeing system is 10-15g/L;
(4), after completing preliminary fixation, continue at the uniform velocity to be warming up to 70 DEG C ~ 75 DEG C and carry out further fixation and polyamide fibre decolouring again, then complete dyeing course through post processing.
The present invention is directed to the problem of REACTIVE DYES to polyamide fibre staining, dye is entered by 40 DEG C of low temperature, slow down the colouring speed of REACTIVE DYES on bright and beautiful cotton, meet the effect of cloth cover level dyeing after insulation, method key point follow-uply adds soda ash 0.05-0.10g/L, keeps dye liquor to present alkalescent, pH value reaches 8 ~ 9, control the upper dye that the dye uptake of dyestuff on polyamide fibre fully ensures cotton component, and then isothermal holding, the method adopting low temperature to add alkali has effectively contained the colouring of bright and beautiful cotton again.Within 30 minutes, the fixation stage is tentatively completed by being warmed up to 50 DEG C of insulations, later stage is again warmed up to 70 DEG C and improves the degree of fixation of REACTIVE DYES on cotton, because of when nylon dyeing temperature is higher than 70 DEG C, dyeing rate can be accelerated rapidly, so must control the insulation period at 70 DEG C, most importantly under 70 DEG C of alkali conditions, insulation effectively completes the process that level dyeing and REACTIVE DYES come off on polyamide fibre for 10 minutes.
As preferably, in step (1), the time of inhaling look is 10 minutes.
As preferably, in step (1), described dyestuff is the vinyl-sulfone reactive dyes that under low temperature, solubility is high, and dye level is 2-6%, is namely mainly middle deep colour dyeing.As further preferred, described dyestuff is reactive black 5 #, active yellow 107#, reactive navy blue 250#, Reactive Red 2 78# and reactive blue 220#.
Suddenly in (1), described accelerant is glauber salt, and consumption is 60g/L.
In step (2), the upper dye time is 25 ~ 35 minutes.
In step (3), the speed at the uniform velocity heated up is 1 DEG C/min.
In step (4), the speed at the uniform velocity heated up is 2 DEG C/min, and the time of fixation and polyamide fibre decolouring is 15 minutes.
As preferably, in step (4), described post processing comprises:
Be cooled to 40 ~ 45 DEG C, get rid of dyeing residual liquid, first wash once with 40 DEG C ~ 45 DEG C warm water, then add temperature of cold water rises 80 ~ 85 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water and soap, finally use 50 ~ 55 Warm Wash once, obtain described DYED FABRICS.
Post processing first time cold wash eliminates the residue on fabric, second time rises to the loose colour of 80 DEG C of effective eccysis REACTIVE DYES on bright and beautiful cotton water temperature, but water temperature is no more than 80 DEG C, prevent water temperature over-high from impelling dyestuff colouring generation contamination again on polyamide fibre, in the process of soaping, finally adopt 90 ~ 95 DEG C of water temperatures to clean, the present invention is tightly around REACTIVE DYES characteristic as can be seen here, and the dyeing condition of dyestuff on polyamide fibre, appropriate design colouring method, under the prerequisite without any production cost and energy waste, any additive is not adopted to carry out production control cost, reach and reduce the dirty chromatic effect of REACTIVE DYES at polyamide fibre.
The bright and beautiful cotton dyeing method of described anti-staining, specifically comprises the following steps:
(1) add successively when entering to contaminate for 40 DEG C and treat dyeing and weaving thing, dyestuff and auxiliary agent, the order fabric that first feeds intake makes temperature and water-bath one cause fabric evenly to be painted, and then enters dye bath suction look at secondary cylinder internalization 0.05-0.1g/L soda ash;
(2) 40 DEG C of dye baths are carried out insulation and are inhaled look 30 minutes, and then in secondary cylinder, material adds 10-15g/L soda ash with 1 DEG C/min ramp to 50-55 DEG C, within 30 minutes, substantially completes fixation step under condition at this temperature;
(3) be incubated 15 minutes after dye bath continues to be warmed up to 70 DEG C ~ 75 DEG C, require that heating rate 2 DEG C of temperature-rise periods continue to improve dye fixing rate, make to anchor at splitting away off of polyamide fibre in insulating process, reach releasing effect;
(4) post-processing approach: after getting rid of dyeing residual liquid, first carry out cold wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90-95 DEG C of hot water and soap, finally use 50 DEG C ~ 55 DEG C Warm Wash once.
Compared with the existing technology, advantage applies of the present invention exists: enter dye vat temperature and be warmed up to the common constant temperature method dyeing of 70 DEG C of replacements by 40 DEG C by trade-off curve, effectively control alkaline agent adjustment REACTIVE DYES at polyamide fibre dyeing speed, reach good polyamide fibre jacquard weave and stay white releasing and even dyeing effect, the dye uptake on cotton is improve after suppressing the upper dye of dyestuff on polyamide fibre, improve the utilization rate of REACTIVE DYES simultaneously, decrease COD amount and the depth of color of post processing sewage, alleviate the effect that environmental protection pressure reaches energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the concrete implementing process flow chart of the best of bright and beautiful cotton dyeing method of the present invention.
Detailed description of the invention
Adopt embodiment to be described in detail explanation to technical scheme of the present invention below, to make advantages and features of the invention be readily appreciated by those skilled in the art, make in scope more explicit.
Dyeing of the present invention as shown in Figure 1, comprises following concrete steps:
(1) strong basicity worn by semi-products embryo cloth cloth after pre-treatment, in glacial acetic acid with must guard against excessive in process, need fully cleaning to make cloth cover pH value remain on 7 ~ 8, guarantee alkalescent state.
(2) fabric enters to contaminate temperature is that 40 DEG C of maintenance low temperature contaminate, and slows down the dyeing rate of REACTIVE DYES at polyamide fibre, enters dye and improve the level-dyeing property of dyestuffs on fabric in 10 minutes
(3) enter dye and add 0.05-0.1g/L soda ash after 10 minutes, keep dye liquor to present alkalescent pH value and reach 8 ~ 9, reduce the dye uptake of dyestuff on polyamide fibre, reach dye on silk-cotton fabric consistent.
(4) 40 DEG C of insulations added soda ash 15-20g/L after 30 minutes, and be incubated 30 minutes after being warmed up to 50 ~ 55 DEG C, this stage completes Dyeing of Cotton Fabric with Reactive Dyes fixation substantially.
(5) dye bath continues to be warmed up to 70 DEG C ~ 75 DEG C heating rates is be incubated 15 minutes after 2 DEG C/min, will improve dye fixing rate further in temperature-rise period.
The process completing REACTIVE DYES therebetween and come off on polyamide fibre for 10 minutes is incubated under (6) 70 DEG C of alkali conditions.
(7) strictly complete bright and beautiful cotton dyeing by post processing requirement to soap releasing process.
Embodiment 1
With common staining method: embryo cloth is entered dye temperature 40 DEG C, add reactive black 5 # dyestuff (dye level is 2.0%) and glauber salt (glauber salt concentration in dyeing system is 60g/L) in a water bath successively, then fixation 30 minutes are incubated with 1 DEG C/min ramp to 60 DEG C, add soda ash (soda ash concentration in dyeing system is 20g/L) again and be incubated fixation 60 minutes, after finally cooling to 45 DEG C, carry out post processing.
Last handling process is as follows: get rid of after dyeing residual liquid, first carry out 40 ~ 45 DEG C of Warm Wash once, then add 95 ~ 98 DEG C of hot water and soap, finally with cold wash once, complete whole dyeing course.
Embodiment 2
Embryo cloth is entered dye temperature 40 DEG C, add reactive black 5 # dyestuff (dye level is 2.0%) in a water bath successively and glauber salt (concentration of glauber salt in dyeing system is 60g/L) inhales look 10 minutes, add soda ash (concentration of soda ash in dyeing system is 0.05g/L) again and be incubated 30 minutes, then add soda ash (concentration of soda ash in dyeing system is 15g/L) and be incubated fixation 30 minutes with 1 DEG C/min ramp to 50 DEG C, continuing to be warmed up to 70 DEG C of heating rates is that after 2 DEG C/min, insulation completes dyeing in 15 minutes, carries out post processing after cooling to 45 DEG C.
Last handling process is as follows: after getting rid of dyeing residual liquid, first add 40 ~ 45 DEG C of Warm Wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water to soap, finally use 50 ~ 55 DEG C of Warm Wash once, get rid of raffinate after each washing, prevent raffinate from again polluting.
Embodiment 3
Embryo cloth is entered dye temperature 40 DEG C, add reactive black 5 # dyestuff (dye level is 2.0%) and glauber salt (concentration of glauber salt in dyeing system is 60g/L) in a water bath successively, then add soda ash (concentration of soda ash in dyeing system is 15g/L) and be incubated fixation 30 minutes with 1 DEG C/min ramp to 50 DEG C, continuing to be warmed up to 70 DEG C of heating rates is that after 2 DEG C/min, insulation completes dyeing in 15 minutes, carries out post processing after cooling to 45 DEG C.
Last handling process is as follows: after getting rid of dyeing residual liquid, first carry out 40 ~ 45 DEG C of Warm Wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water to soap, finally use 50 ~ 55 DEG C of Warm Wash once, get rid of raffinate after each washing, prevent raffinate from again polluting.
Embodiment 4
Embryo cloth is entered dye temperature 40 DEG C, add reactive black 5 # dyestuff (dye level is 2.0%) in a water bath successively and glauber salt (concentration of glauber salt in dyeing system is 60g/L) inhales look 10 minutes, add soda ash (concentration of soda ash in dyeing system is 0.05g/L) again and be incubated 30 minutes, then 1 DEG C/min ramp adds soda ash (concentration of soda ash in dyeing system is 15g/L) to 50 DEG C and is incubated fixation 30 minutes, continuing to be warmed up to 70 DEG C of heating rates is that after 2 DEG C/min, insulation completes dyeing in 15 minutes, carries out post processing after cooling to 45 DEG C.
Last handling process is as follows: after getting rid of dyeing residual liquid, first carry out 40 ~ 45 DEG C of Warm Wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water to soap, finally use 50 ~ 55 DEG C of Warm Wash once, get rid of raffinate after each washing, prevent raffinate from again polluting.
Embodiment 5
Embryo cloth is entered dye at temperature 50 C, add reactive black 5 # dyestuff (dye level is 2.0%) in a water bath successively and glauber salt (concentration of glauber salt in dyeing system is 60g/L) inhales look 10 minutes, add soda ash (concentration of soda ash in dyeing system is 0.05g/L) again and be incubated 30 minutes, then 1 DEG C/min ramp adds soda ash (concentration of soda ash in dyeing system is 15g/L) to 60 DEG C and is incubated fixation 30 minutes, continuing to be warmed up to 70 DEG C of heating rates is that after 2 DEG C/min, insulation completes dyeing in 15 minutes, carries out post processing after cooling to 45 DEG C.
Last handling process is as follows: after getting rid of dyeing residual liquid, first carry out 40 ~ 45 DEG C of Warm Wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water to soap, finally use 50 ~ 55 DEG C of Warm Wash once, get rid of raffinate after each washing, prevent raffinate from again polluting.
Embodiment 6
Embryo cloth is entered dye at temperature 60 C, add reactive black 5 # dyestuff (dye level is 2.0%) in a water bath successively and glauber salt (concentration of glauber salt in dyeing system is 60g/L) inhales look 10 minutes, add soda ash (concentration of soda ash in dyeing system is 0.05g/L) again and be incubated 30 minutes, and then add soda ash (concentration of soda ash in dyeing system is 15g/L) and be incubated fixation 30 minutes, continuing to be warmed up to 70 DEG C of heating rates is that after 2 DEG C/min, insulation completes dyeing in 15 minutes, carries out post processing after cooling to 45 DEG C.
Last handling process is as follows: after getting rid of dyeing residual liquid, first carry out 40 ~ 45 DEG C of Warm Wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water to soap, finally use 50 ~ 55 DEG C of Warm Wash once, get rid of raffinate after each washing, prevent raffinate from again polluting.
Embodiment 7
Embryo cloth is entered dye at temperature 60 C, add reactive black 5 # dyestuff (dye level is 2.0%) in a water bath successively and glauber salt (concentration of glauber salt in dyeing system is 60g/L) inhales look 10 minutes, add soda ash (concentration of soda ash in dyeing system is 0.05g/L) again and be incubated 30 minutes, and then add soda ash (concentration of soda ash in dyeing system is 15g/L) and be incubated fixation 30 minutes, continuing to be warmed up to 80 DEG C of heating rates is that after 2 DEG C/min, insulation completes dyeing in 15 minutes, carries out post processing after cooling to 45 DEG C.
Last handling process is as follows: after getting rid of dyeing residual liquid, first carry out 40 ~ 45 DEG C of Warm Wash once, then add temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water to soap, finally use 50 ~ 55 DEG C of Warm Wash once, get rid of raffinate after each washing, prevent raffinate from again polluting.
Embodiment 8
Dyeing is identical with embodiment 1, and difference is aftertreatment technology: carry out 80 DEG C of hot water wash after having dyeed and add the neutralization of 0.5g/L glacial acetic acid, then use 80 DEG C of hot water wash once, then add soaping agent 98 DEG C and soap.
Above-described embodiment dyes with bath and polyamide/cotton mixture respectively to the bright and beautiful separate fabric of cotton, and after dyeing, fabric adopts the method for GB/T3921-2008, GB/T3920-2008 to test, and obtains corresponding test data in table 1.
The test data of table 1 embodiment 1 ~ 8
Known by the test data analyzing each embodiment, the K/S value obtaining cotton bright and beautiful fabric has obvious difference, and washing is also different because of the change of method with crock fastness, have impact on the product quality of DYED FABRICS.
The present invention is directed to the problem of REACTIVE DYES to polyamide fibre staining, dye is entered by 40 DEG C of low temperature, slow down the colouring speed of REACTIVE DYES on bright and beautiful cotton, be incubated the effect meeting cloth cover level dyeing after 10 minutes, method key point adds soda ash 0.02-0.05g/L after 10 minutes, dye liquor is kept to present alkalescent, pH value reaches 8 ~ 9, the dye uptake of control dyestuff on polyamide fibre fully ensures the upper dye in cotton, and then be incubated 30 minutes, the method adopting low temperature to add alkali has effectively contained the colouring of bright and beautiful cotton again, within 30 minutes, the fixation stage is tentatively completed by being warmed up to 50 DEG C of insulations, later stage is again warmed up to 70 DEG C and improves the degree of fixation of REACTIVE DYES on cotton, because of when nylon dyeing temperature is higher than 70 DEG C, dyeing rate can be accelerated rapidly, so the insulation period at 70 DEG C must be controlled, most importantly under 70 DEG C of alkali conditions, insulation effectively completes the process that level dyeing and REACTIVE DYES come off on polyamide fibre for 10 minutes.Post processing first time Warm Wash is except the residue on fabric, second time rises to the loose colour of 80 DEG C of effective eccysis REACTIVE DYES on bright and beautiful cotton water temperature, but water temperature is no more than 80 DEG C, prevent water temperature over-high from impelling dyestuff colouring generation contamination again on polyamide fibre, finally in the process of soaping, 90-95 DEG C of water temperature is adopted to clean, the present invention is tightly around REACTIVE DYES characteristic as can be seen here, and the dyeing condition of dyestuff on polyamide fibre, appropriate design colouring method, under the prerequisite without any production cost and energy waste, any additive is not adopted to carry out production control cost, reach and reduce the dirty chromatic effect of REACTIVE DYES at polyamide fibre.
Claims (10)
1. a bright and beautiful cotton dyeing method for anti-staining, is characterized in that, comprise the steps:
(1) under 40 DEG C ~ 45 DEG C conditions, add in water-bath successively and treat that dyeing and weaving thing, dyestuff and accelerant carry out the process of suction look;
Described treats that dyeing and weaving thing is bright and beautiful cotton blended fabric;
(2) add soda ash in suction look even backward dyeing system, the process of upper dye is carried out in insulation;
The concentration of the soda ash added in dyeing system is 0.05 ~ 0.1g/L;
(3) above contaminate evenly, add soda ash and be at the uniform velocity warming up to 50-55 DEG C, then preliminary fixation is carried out in insulation, is incubated and completes preliminary fixation after 30 minutes;
The concentration of the soda ash added in dyeing system is 10-15g/L;
(4), after completing preliminary fixation, continue at the uniform velocity to be warming up to 70 DEG C ~ 75 DEG C and carry out further fixation and polyamide fibre decolouring again, then complete dyeing course through post processing.
2. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (1), just dye inhales the time of look is 10 minutes.
3. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (1), described dyestuff is vinyl-sulfone reactive dyes, and dye level 2 ~ 6% is middle dark consumption.
4. the bright and beautiful cotton dyeing method of anti-staining according to claim 3, is characterized in that, described dyestuff is at least one in reactive black 5 #, active yellow 107#, reactive navy blue 250#, Reactive Red 2 78# and reactive blue 220#.
5. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (1), described accelerant is glauber salt, the concentration 60g/L in dyeing system.
6. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (2), the upper dye time is 25 ~ 35 minutes.
7. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (3), the speed at the uniform velocity heated up is 1 DEG C/min.
8. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (4), the speed at the uniform velocity heated up is 2 DEG C/min, and the time of fixation and polyamide fibre decolouring is 10 minutes.
9. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, in step (4), described post processing comprises:
Be cooled to 40 ~ 45 DEG C, get rid of dyeing residual liquid, first with the washing of 40 DEG C ~ 45 DEG C warm water once, continuation with 80 ~ 85 DEG C of hot washes once, then add 90-95 DEG C of hot water and soap, finally use 50 ~ 55 DEG C of Warm Wash once, obtain described DYED FABRICS.
10. the bright and beautiful cotton dyeing method of anti-staining according to claim 1, is characterized in that, comprise the following steps:
(1) add successively when entering to contaminate for 40 DEG C and treat dyeing and weaving thing, dyestuff and auxiliary agent, make to treat that dyeing and weaving thing is evenly painted, then enter dye bath at secondary cylinder internalization soda ash and inhale look;
(2) 40 DEG C of dye baths are carried out insulation and are inhaled look 30 minutes, then enter dye bath at secondary cylinder internalization soda ash, then with 1 DEG C/min ramp to 50 ~ 55 DEG C, insulation carries out preliminary fixation in 30 minutes at such a temperature;
(3) be incubated 15 minutes after dye bath continues to be warmed up to 70 DEG C, heating rate is 2 DEG C/min, carries out fixation and polyamide fibre decolouring;
(4) post processing: be cooled to 45 DEG C, after getting rid of dyeing residual liquid, first adds 40 DEG C ~ 45 Warm Wash once, then adds temperature of cold water rises 80 DEG C of hot washes once, then add 90 ~ 95 DEG C of hot water and soap, finally use 50 ~ 55 Warm Wash once, obtain DYED FABRICS.
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| CN112030576A (en) * | 2020-08-06 | 2020-12-04 | 通亿（泉州）轻工有限公司 | Dyeing process with active turquoise blue as main material |
| CN114277587A (en) * | 2021-12-22 | 2022-04-05 | 广东职业技术学院 | Dyeing method of nylon-cotton fabric |
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| CN115674372A (en) * | 2022-10-18 | 2023-02-03 | 浙江升华云峰新材股份有限公司 | Non-discoloring high-weather-resistance recombined decorative veneer and preparation method thereof |
| CN115674372B (en) * | 2022-10-18 | 2024-02-13 | 浙江升华云峰新材股份有限公司 | Non-color-changing high-weatherability recombined decorative veneer and preparation method thereof |
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