CN103556498A - Low-salt and low-alkali dyeing process with mesothermal type active dye of cellulosic fiber fabric - Google Patents
Low-salt and low-alkali dyeing process with mesothermal type active dye of cellulosic fiber fabric Download PDFInfo
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- CN103556498A CN103556498A CN201310495525.2A CN201310495525A CN103556498A CN 103556498 A CN103556498 A CN 103556498A CN 201310495525 A CN201310495525 A CN 201310495525A CN 103556498 A CN103556498 A CN 103556498A
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Abstract
The invention relates to a low-salt and low-alkali dyeing process with a mesothermal type active dye of a cellulosic fiber fabric. The low-salt and low-alkali dyeing process comprises the following steps: modifying a cellulosic fiber fabric to be dyed by a fiber modifying agent to prepare a partially-aminated modified cellulosic fiber fabric to be dyed; modifying the mesothermal type active dye by a dye modifying agent to prepare an activated and modified mesothermal type active dye; and carrying out low-salt and low-alkali dyeing on the cellulosic fiber fabric, namely carrying out the low-salt and low-alkali dyeing on the partially-aminated modified cellulosic fiber fabric to be dyed by the activated and modified mesothermal type active dye in the presence of neutral electrolyte, inorganic alkalis and water. According to the dyeing technology, the use amount of the neutral electrolyte and the inorganic alkalis can be reduced and the dyeing temperature can be reduced by about 10 DEG C; the dyed cellulosic fiber fabric has high coloring depth, good dyeing fastness and excellent dyeing reproducibility; the low-salt and low-alkali dyeing process can be used for dyeing various cellulosic fiber fabrics by the mesothermal type active dye.
Description
Technical field
The low alkali dyeing of less salt of the BLENDED FABRIC that to the present invention relates to for REACTIVE DYES be main body to cellulose fibre or the cellulose fibre of take, is specifically related to a kind of middle Resist Reactive Dyes to the low alkali dyeing of the less salt of cellulose base fiber fabric.
Background technology
In current production practices, REACTIVE DYES is the dyestuff that is most commonly used to cellulose fiber textile dyeing, and wherein use amount maximum is middle Resist Reactive Dyes.In middle Resist Reactive Dyes dyeing course, use alkali and all a lot of with salt, environmental pollution and the cost pressure problem for solving the high-alkali dyeing of the high salt of traditional REACTIVE DYES, brought, the Research Emphasis that the low alkali staining technique of less salt of REACTIVE DYES is association area all the time.Current, the low alkali dyeing of less salt of REACTIVE DYES is mainly divided into following four kinds:
1, the low alkali dyeing of the REACTIVE DYES less salt of the low basic active dyestuff of less salt, REACTIVE DYES, cationization REACTIVE DYES, low aqueous solubility REACTIVE DYES that this process using has larger molecular weight and good planes of molecules dye to cellulose base fiber fabric, by improve dyestuff and fiber affinity, reduce dyestuff to the diffusional resistance of fiber, reach obvious reduction dye for the object of salt amount.
As Zhou Zhicheng, Zhao Tao show " a kind of research of synthetic and salt-free upper dyeing cotton fabric of active cationic dye " (< < dyestuff and dyeing > > the 3rd phase of 47 volumes in 2010), disclose by synthetic introducing active group in to nitro-azo aniline molecule and quaternary ammonium cation group synthesizes active cationic dye at it, then under salt-free condition, realized the dyeing to cellulose base fiber fabric.
Yet active cationic dye has very high substantivity and active conventionally, easily there is the phenomenon of dyeing inequality and color fastness decreased; Meanwhile, the kind of this type of dyestuff is limited, chromatogram is complete and be difficult for storage, expensive, can not effectively reduce dyeing alkali charge; In addition, active cationic dye has proposed higher requirement to the corrosion resistance of dyeing installation, and its feature of environmental protection and fastness to light are also poor.Therefore, this technique is difficult to effectively solve the high-alkali dyeing present situation of high salt of REACTIVE DYES.
2, by cellulose fibre being carried out to the low alkali dyeing of REACTIVE DYES less salt of modification, this process using epoxies nitrogen-containing compound, one chloro-s-triazine type quarternary ammonium salt compound, azetidine cationic compound, N hydroxymethyl acrylamide and cationic acrylamide base co-polymer, hydroxyalkyl ammonium salt compounds, living beings cationic reagent, amino dendrimer polymer, the modifying agents such as amino dissaving polymer carry out cation modifying to cellulose fibre, by suppressing the anionic property of cellulose fibre, increase the reactive group of cellulose fibre and REACTIVE DYES, reach the object of salt amount for obvious reduction dyeing.
As rise the dawn rising sun, Ma Wei, Zhang Shufen and show the disclosed salt free dyeing with reactive dye of " the salt-free dyeing behavior of quaternary ammonium cation polyacrylamide " (< < chemical industry makes progress > > the 3rd phase of 29 volumes in 2010) and, by cellulose base fiber fabric being carried out to cation modifying with quaternary ammonium cation polyacrylamide, realized the salt-free dyeing to it.
Yet, the operation of fiber being carried out to cation modifying compared with long, auxiliary dosage is large, cost is higher, dyeing repeatability is poor, uncertain factor is more; Most cationic reagents itself are harmful to environment, easily cause the secondary pollution of environment; Most of modifier utilization rate is low, modification evenness is poor and have unpleasant odour; Some modifying process need to carry out under the condition of highly basic, heating, larger to fibre damage; The modified effect of fiber is very strong to the dependence of modified technique, and after modification, fiber dyes on being difficult to control evenly; For the cellulose fibre after modification, reactive dye color fixing alkali charge and fixation bath pH value are wayward, Yi Sehua; Macromolecule cation reagent is not only difficult to preparation, water-soluble poor, but also can affect the wearability such as the gas permeability of fabric and soft feel; After modification, the colorfastness to rubbing of fabric has obvious decline, dark, heavy colour product is all the more so; There is very large variation to the absorption behavior of dyestuff in fiber, the uncontrollable factor of dyeing increases; Can not reduce dyeing alkali charge.Therefore,, although this REACTIVE DYES low salt dyeing technology effect is remarkable, be difficult to large-scale promotion in production practices.
3, the low alkali dyeing of REACTIVE DYES less salt that uses the low alkali dyeing assistant of less salt, this process using organic salt substitutes neutral inorganic, uses inorganic salts consumption to reach reduce the object of inorganic salts amount for dyeing by minimizing.
As shown disclosed REACTIVE DYES low salt dyeing technique of " application study of compound organic salt accelerant " (< < hosiery industry > > the 3rd phase in 2011) in people such as pine China, Wu Ailian, Yu Guanyang, this technique by use sodium formate or natrium citricum substitute traditional anhydrous sodium sulfate as REACTIVE DYES the dyeing salt to cellulose fibre, realized avoid using sodium sulphate as REACTIVE DYES the dyeing accelerant to cellulose fibre, thereby reduce the object of environmental pollution.
Yet, though use organic salt to substitute inorganic salts, can reduce environmental pollution, its consumption is obviously higher compared with inorganic salts, obtain the best short effect of dying, and more than its mass concentration needs to reach 200g/L sometimes, price is also more expensive than inorganic salts.In addition, the viscosity of high score subclass organic slat solution is generally higher, and curling winding also easily occurs molecule long-chain in solution, makes it to REACTIVE DYES short, dye successful poor.In addition, this staining technique can not effectively reduce dyeing alkali charge.
4, use the low alkali dyeing of REACTIVE DYES less salt of the low alkali dyeing installation of less salt, this process using Electrochemical Dyeing machine or ultrasonic dyeing machine.As dye liquor applied to suitable voltage by Electrochemical Dyeing machine, by interelectrode potential difference, make the displacement of dyestuff ion and sodium ion generation opposite direction, reach and significantly reduce the object of salt amount for dyeing, or utilize hyperacoustic cavitation by ultrasonic dyeing machine, REACTIVE DYES is played to short effect of dying, reach the object that reduces inorganic salts consumption.
As Luan Yemei, Liu Li show " comparative study of REACTIVE DYES Ultrasonic Dyeing and normal dyeing technique " (the journal > > of < < Tianjin University of Technology the 4th phase of 30 volumes in 2011) low alkali dyeing of disclosed REACTIVE DYES less salt, this technique is cavitation disturbance and the fuel factor to dye bath by ultrasonic wave, has reached and has reduced the object of salt amount and alkali charge for dyeing.
Yet the input that facts have proved the low alkali dyeing installation of less salt is large and production efficiency is low, the actual effect that dyeing alkali charge is reduced is also indefinite.Meanwhile, ultrasonic dyeing machine is very limited by the effect of salt amount to reducing REACTIVE DYES, is difficult to play a role separately, cannot realize industrial applications in a short time.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of middle Resist Reactive Dyes to the low alkali dyeing of the less salt of cellulose base fiber fabric.With traditional REACTIVE DYES, the dyeing of cellulose base fiber fabric is compared, this dyeing can reduce the consumption of neutral electrolyte and inorganic base, and can reduce by 10 ℃ of left and right and carry out the dyeing of middle Resist Reactive Dyes to cellulose base fiber fabric, and the low alkali dyeing of the less salt that adopts this REACTIVE DYES dye cellulose fiber textile there is higher color depth, good dyefastness and excellent reproducibility, can be used for the middle Resist Reactive Dyes dyeing of various cellulose fiber textiles.
The present invention solves the problems of the technologies described above adopted technical scheme:
Middle Resist Reactive Dyes, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: it comprises the following steps:
(1) pretreatment of fiber cellulose fiber is treated DYED FABRICS: by what treat that dyeing cellulosic fabric makes the aminated modification of part with fibre modifier modification, treat dyeing cellulosic fabric, described fibre modifier is diethylenetriamine, diethylenetriamine base propyl group dimethoxy silane, diethylenetriamine base propyl group diethoxy silane, diethylenetriamine base propyl trimethoxy silicane, diethylenetriamine base propyl-triethoxysilicane, triethylene tetramine, triethylene tetramine base propyl group dimethoxy silane, triethylene tetramine base propyl group diethoxy silane, triethylene tetramine base propyl trimethoxy silicane, the mixing of one or both in triethylene tetramine base propyl-triethoxysilicane, described fibre modifier is the 2～6wt% that treats dyeing cellulosic fabric,
(2) preliminary treatment REACTIVE DYES: by modification agent modification for middle Resist Reactive Dyes, make the middle Resist Reactive Dyes of activation modification; Described modification agent is a kind of in triethanolamine, Tri-n-Propylamine, triethylamine, trimethylamine, N methyldiethanol amine, N butyl diethanol amine; 3～9wt% that described modification agent is middle Resist Reactive Dyes;
(3) the low alkali dyeing of cellulose base fiber fabric less salt: treat dyeing cellulosic fabric under the condition that the middle Resist Reactive Dyes after dyeing cellulosic fabric and step (2) activation modification of the aminated modification of part after step (1) is processed exists at neutral electrolyte, inorganic base and demineralized water and carry out the low alkali dyeing of less salt, make cellulose base fiber fabric and dye product; Described middle Resist Reactive Dyes is to treat that a wt%, a of dyeing cellulosic fabric are 1～5, the mass concentration of described neutral electrolyte in system is b g/L, b value is 30～82, the mass concentration of described inorganic base in system is c g/L, c value is 8～17, and b=(22+8a)～(22+12
a),
c=(7+a)～(7+2
a).
Press such scheme, in described step (1), the modification temperature of cellulose base fiber fabric is 35～55 ℃, and modification time is 10～30min.
Press such scheme, in described step (2), the modification temperature of middle Resist Reactive Dyes is 40～60 ℃, and modification time is 10～40min.
Press such scheme, described step (3) is the middle Resist Reactive Dyes after dyeing cellulosic fabric, step (2) activation modification of the aminated modification of part after step (1) is processed, at 40～55 ℃, maintain dyeing system circulation 10～30min, then in dyeing system, first add a part of neutral electrolyte and a part of inorganic base, described neutral electrolyte and inorganic base are respectively 30～50wt% of total amount separately, at 40～55 ℃, maintain dyeing system circulation 5～15min; Then in dyeing system, add remaining neutral electrolyte, at 40～55 ℃, maintain dyeing system circulation 20～40min; In dyeing system, add remaining inorganic base again, at 40～55 ℃, maintain dyeing system circulation 50～70min; Finally by soaping, washing, obtain cellulose base fiber fabric and dye product.
Press such scheme, described cellulose base fiber fabric is the fabric semi-products that cellulose fiber content is not less than also process destarch of 70wt%, kiering.
Press such scheme, described middle Resist Reactive Dyes is the REACTIVE DYES that at least contains a vinyl sulfone(RemzaolHuo Xingranliaohuoxingjituan) active group or the REACTIVE DYES that at least contains a difluoro one chlorine pyrimidine active group.
Press such scheme, described inorganic base is sodium carbonate.
Press such scheme, described neutral electrolyte is anhydrous sodium sulfate.
Press such scheme, described demineralized water is preferably total hardness and is less than 30ppmCaCO
3soft water, the consumption of described demineralized water is to treat 7～10 times of dyeing cellulosic fabric weight.
Press such scheme, described middle Resist Reactive Dyes is specially the low alkali dyeing of the less salt of cellulose base fiber fabric:
Step (1): dyeing cellulosic fabric is treated in preliminary treatment
(1.1) by 95～99wt% of demineralized water total amount, fibre modifier, treat that dyeing cellulosic fabric drops into dyeing machine;
(1.2) be warming up to 35～55 ℃, be incubated and maintain the circulation 10～30min treating between dyeing cellulosic fabric, demineralized water, fibre modifier, what make the aminated modification of part treats dyeing cellulosic fabric;
Step (2): preliminary treatment REACTIVE DYES
(2.1) remaining demineralized water, modification agent, middle Resist Reactive Dyes are dropped into the pill tank of dyeing machine;
(2.2) be warming up to 40～60 ℃, be incubated and maintain the circulation 10～40min between middle Resist Reactive Dyes, demineralized water, modification agent, make the middle Resist Reactive Dyes of activation modification;
Step (3): the low alkali dyeing of cellulose base fiber fabric less salt
(3.1) the middle Resist Reactive Dyes solution for vacuum of step (2.2) activation modification is pumped among the dyeing machine of step (1.2);
(3.2), at 40～55 ℃, maintain dyeing system circulation 10～30min;
(3.3) in dyeing system, first add a part of neutral electrolyte and a part of inorganic base, it accounts for the content of total amount separately and is 30～50wt%, then, at 40～55 ℃, maintains dyeing system circulation 5～15min;
(3.4) in dyeing system, add remaining neutral electrolyte, at 40～55 ℃, maintain dyeing system circulation 20～40min;
(3.5) in dyeing system, add remaining inorganic base, at 40～55 ℃, maintain dyeing system circulation 50～70min;
(3.6) soap, wash, make cellulose base fiber fabric and dye product.
Compared with prior art, the inventive method has the following advantages and feature:
1, the present invention by by REACTIVE DYES activation modification with to the part of cellulose fibre, aminated modification combines, when improving REACTIVE DYES and cellulose fibre molecular reaction ability (by utilizing tertiary amine compound to react the quaternized REACTIVE DYES active group of formation with middle Resist Reactive Dyes, can make the nucleophilic substitution ability of itself and cellulose fibre molecule strengthen), also can be by utilizing polyamines base organic compound or cross-linking reaction type polyamines base organic compound to carry out preliminary treatment to cellulose fibre, increase the dye seat of cellulose fibre to REACTIVE DYES, and partly suppress the elecrtonegativity of cellulose fibre molecule, its repulsion that elecrtonegativity REACTIVE DYES is produced is reduced, improve REACTIVE DYES to diffusion and the absorption of fiber.The method had both improved the reactivity of REACTIVE DYES to cellulose fibre molecule, reduced to a certain extent again the electrostatic repulsion of REACTIVE DYES to cellulose fibre diffusion, and contribute to improve the saturated extent of adsorption of dyestuff on fiber, realized when REACTIVE DYES is short dyes with salt amount and fixation alkali charge and significantly having declined, be easy to obtain reactive dyeing product dark, heavy colour.Because this patent technology controlling and process dyestuff and fiber are still anionic property, therefore the low alkali dyeing of this less salt can guarantee that the REACTIVE DYES of anion is adsorbed on the cellulose fibre of anion equably with moderate diffusion velocity, process controllability is strong, be conducive to level dyeing and thoroughly dye, dyeing uniformity, reproducibility and dyefastness are good.With traditional middle Resist Reactive Dyes, the dyeing of cellulose base fiber fabric is compared, this dyeing can make anhydrous sodium sulfate consumption by 50～120g/L drop to 30～82g/L(reduce for salt amount 30-40%), sodium carbonate amount drops to 8～17g/L(by 12～25g/L and reduces alkali charge 30-40%), dyeing temperature is reduced to 50 ℃ (approximately reducing by 10 ℃ of left and right) by 60 ℃, and adopt the low alkali dyeing of the less salt of Resist Reactive Dyes in this dye cellulose fiber textile there is higher color depth, the K/S value of dyeing product can improve 10% left and right, and its dyefastness be not less than traditional dyeing technique dye cellulose fiber textile, Washing reaches 4～5 grades, dry, more than wet friction COLOR FASTNESS reaches respectively 4 grades and more than 3 grades.
2, the present invention, by adopting REACTIVE DYES to add in advance alkali color fixing process, adds dye bath by fixation with soda ash at twice.Compare the twice short rear disposable technique that adds alkali fixation of end of dying of salt adding with traditional reactive dyeing, the present invention short adds when dying with neutral electrolyte anhydrous sodium sulfate by a part of soda ash being advanced to add for the first time, and under lower dyeing temperature coordinates, not only can significantly extend the fixation time of REACTIVE DYES, and contribute to suppress the hydrolysis of dyestuff.Meanwhile, the pH value of dye bath is more stable, and hydrolysed reactive dye is less, and dye-uptake and the degree of fixation of dyestuff are higher.
3, the uncontrollable factor dyeing in technological process of the present invention is less, and dyeing repeatability is good, constant product quality.Meanwhile, dyeing process is shorter, is conducive to reduce energy consumption, protection of the environment; Auxiliary dosage is few, dyeing cost is low.
The specific embodiment
Embodiment 1
The raw material of this dyeing comprises:
1, treat DYED FABRICS: textile bleached cotton fabric 1000g
2, middle Resist Reactive Dyes: Hensel steps NOVACRON DEEP NIGHT S-R 20g
3, neutral electrolyte: anhydrous sodium sulfate 360g(is 40g/L)
4, inorganic base: sodium carbonate 81g(is 9g/L)
5, fibre modifier: diethylenetriamine 40g
6, modification agent: triethylamine 1g
7, demineralized water: total hardness is 25ppmCaCO
3soft water 9000g
The concrete steps of this dyeing:
(1) DYED FABRICS is treated in preliminary treatment: by what treat that dyeing cellulosic fabric makes the aminated modification of part with fibre modifier modification, treat dyeing cellulosic fabric, be specially:
(1.1) demineralized water 8800g, diethylenetriamine, textile bleached cotton fabric are dropped into dyeing machine;
(1.2) be warming up to 45 ℃, be incubated and maintain the circulation 25min between textile bleached cotton fabric, demineralized water, diethylenetriamine, what make the aminated modification of part treats dyeing cellulosic fabric.
(2) step of preliminary treatment REACTIVE DYES, this step, by modification agent modification for middle Resist Reactive Dyes, makes the middle Resist Reactive Dyes of activation modification; Be specially:
(2.1) remaining demineralized water, triethylamine, Hensel are stepped to the pill tank that NOVACRON DEEP NIGHT S-R dyestuff drops into dyeing machine;
(2.2) be warming up to 50 ℃, be incubated and maintain Hensel and step the circulation 30min between NOVACRON DEEP NIGHT S-R dyestuff, demineralized water, triethylamine, make the middle Resist Reactive Dyes of activation modification.
(3) step of the low alkali dyeing of cellulose base fiber fabric less salt, this step dyes treating dyeing cellulosic fabric under the middle Resist Reactive Dyes for the treatment of dyeing cellulosic fabric, activation modification of the aminated modification of part, the condition that exists at neutral electrolyte and inorganic base, makes cellulose base fiber fabric and dyes product.Be specially:
(3.1) the middle Resist Reactive Dyes solution for vacuum of the activation modification of step (2.2) is pumped in the system of step (1.2);
(3.2), at 50 ℃, maintain dyeing system circulation 20min;
(3.3) in dyeing system, add anhydrous sodium sulfate 140g and sodium carbonate 33g, at 50 ℃, maintain dyeing system circulation 10min;
(3.4) in dyeing system, add remaining anhydrous sodium sulfate, at 50 ℃, maintain dyeing system circulation 30min;
(3.5) in dyeing system, add remaining sodium carbonate, at 50 ℃, maintain dyeing system circulation 60min;
(3.6) soap, wash, make cellulose base fiber fabric and dye product.
The purposes of the technology of the present invention: can be used for various cellulose fiber textiles to carry out the low alkali dyeing of the less salt processing of middle Resist Reactive Dyes.
This dyeing alkali and low by salt amount for dyeing, and dyeing temperature is low (to be compared with traditional dyeing technique, dyeing can reduce respectively 30～40% with salt and alkali charge, dyeing temperature declines approximately 10 ℃), simultaneously, after dyeing the Apparent Depth of cellulose fiber textile can promote 10% left and right and its dyefastness be not less than traditional dyeing technique dye cellulose fiber textile, Washing reaches 4～5 grades, dry, wet friction COLOR FASTNESS reach respectively 4 grades above and more than 3 grades.
Embodiment 2
The raw material of this colouring method comprises:
1, treat DYED FABRICS: textile bleaching mercerized cloth 1000g
2, middle Resist Reactive Dyes: Argazol Blue BP 30g
3, neutral electrolyte: anhydrous sodium sulfate 530g(is 53g/L)
4, inorganic base: sodium carbonate 110g(is 11g/L)
5, fibre modifier: triethylene tetramine base propyl group dimethoxy silane 30g
6, modification agent: trimethylamine 2g
7, demineralized water: total hardness is 20ppmCaCO
3soft water 10000g
The concrete steps of this staining technique:
(1) step of DYED FABRICS is treated in preliminary treatment: will treat the fibre modifier modification of dyeing cellulosic fabric, what make the aminated modification of part treats dyeing cellulosic fabric, is specially:
(1.1) demineralized water 9700g, triethylene tetramine base propyl group dimethoxy silane, textile bleaching mercerized cloth are dropped into dyeing machine;
(1.2) be warming up to 40 ℃, be incubated and maintain the circulation 30min between textile bleaching mercerized cloth, demineralized water, triethylene tetramine base propyl group dimethoxy silane, what make the aminated modification of part treats dyeing cellulosic fabric.
(2) step of preliminary treatment REACTIVE DYES: by modification agent modification for middle Resist Reactive Dyes, make the middle Resist Reactive Dyes of activation modification, be specially:
(2.1) demineralized water of remainder, trimethylamine, Argazol Blue BP dyestuff are dropped into the pill tank of dyeing machine;
(2.2) be warming up to 45 ℃, be incubated and maintain the circulation 25min between Argazol Blue BP dyestuff, demineralized water, trimethylamine, make the middle Resist Reactive Dyes of activation modification.
(3) step of the low alkali dyeing of cellulose base fiber fabric less salt, this step is treated dyeing cellulosic fabric by the middle Resist Reactive Dyes for the treatment of dyeing cellulosic fabric, activation modification of the aminated modification of part and is dyeed under the condition of neutral electrolyte and inorganic base existence, make cellulose base fiber fabric and dye product, be specially:
(3.1) the middle Resist Reactive Dyes solution for vacuum of the activation modification of step (2.2) is pumped among the dyeing machine of step (1.2);
(3.2), at 50～55 ℃, maintain dyeing system circulation 25min;
(3.3) in dyeing system, add anhydrous sodium sulfate 200g and sodium carbonate 40g, at 50～55 ℃, maintain dyeing system circulation 13min;
(3.4) in dyeing system, add remaining anhydrous sodium sulfate, at 50～55 ℃, maintain dyeing system circulation 35min;
(3.5) in dyeing system, add remaining sodium carbonate, at 50～55 ℃, maintain dyeing system circulation 55min;
(3.6) soap, wash, make cellulose base fiber fabric and dye product.
This dyeing alkali and low by salt amount for dyeing, and dyeing temperature is low (to be compared with traditional dyeing technique, dyeing can reduce respectively 30～40% with salt and alkali charge, dyeing temperature declines approximately 10 ℃), simultaneously, after dyeing the Apparent Depth of cellulose fiber textile can promote 10% left and right and its dyefastness be not less than traditional dyeing technique dye cellulose fiber textile, Washing reaches 4～5 grades, dry, wet friction COLOR FASTNESS reach respectively 4 grades above and more than 3 grades.
In embodiment 3 the present invention, Resist Reactive Dyes is to the low alkali staining technique of the less salt of cellulose base fiber fabric
The raw material of this colouring method comprises:
1, treat DYED FABRICS: wash (content 20%) cotton (content 80%) bleaching mercerized cloth 1000g
2, middle Resist Reactive Dyes: Hensel steps NOVACRON DEEP NIGHT S-R 40g
3, neutral electrolyte: anhydrous sodium sulfate 520g(is 65g/L)
4, inorganic base: sodium carbonate 100g(is 12.5g/L)
5, fibre modifier: triethylene tetramine base propyl-triethoxysilicane 25g
6, modification agent: N methyldiethanol amine 3.3g
7, demineralized water: total hardness is 25ppmCaCO
3soft water 8000g
The concrete steps of this staining technique:
(1) step of DYED FABRICS is treated in preliminary treatment, and this step will be treated DYED FABRICS fibre modifier modification, and what make the aminated modification of part treats dyeing cellulosic fabric; Be specially:
(1.1) by demineralized water 7600g, triethylene tetramine base propyl-triethoxysilicane, wash (content 20%) cotton (content 80%) bleaching mercerized cloth and drop into dyeing machine;
(1.2) be warming up to 40～45 ℃, be incubated and maintain the circulation 20min washing between (content 20%) cotton (content 80%) bleaching mercerized cloth, demineralized water, triethylene tetramine base propyl-triethoxysilicane, what make the aminated modification of part treats dyeing cellulosic fabric.
(2) step of preliminary treatment REACTIVE DYES, this step, by modification agent modification for middle Resist Reactive Dyes, makes the middle Resist Reactive Dyes of activation modification; Be specially:
(2.1) demineralized water of remainder, N methyldiethanol amine, Hensel are stepped to the pill tank that NOVACRON DEEP NIGHT S-R dyestuff drops into dyeing machine;
(2.2) be warming up to 50～55 ℃, be incubated and maintain Hensel and step the circulation 30min between NOVACRON DEEP NIGHT S-R dyestuff, demineralized water, N methyldiethanol amine, make the middle Resist Reactive Dyes of activation modification.
(3) step of the low alkali dyeing of cellulose base fiber fabric less salt, this step is treated dyeing cellulosic fabric by the middle Resist Reactive Dyes for the treatment of dyeing cellulosic fabric, activation modification of the aminated modification of part and is dyeed under the condition of neutral electrolyte and inorganic base existence, makes cellulose base fiber fabric and dyes product.Be specially:
(3.1) the middle Resist Reactive Dyes solution for vacuum of the activation modification of step (2.2) is pumped among the dyeing machine of step (1.2);
(3.2), at 48～52 ℃, maintain dyeing system circulation 20min;
(3.3) in dyeing system, add anhydrous sodium sulfate 260g and sodium carbonate 40g, at 48～52 ℃, maintain dyeing system circulation 15min;
(3.4) in dyeing system, add remaining anhydrous sodium sulfate, at 48～52 ℃, maintain dyeing system circulation 27～33min;
(3.5) in dyeing system, add remaining sodium carbonate, at 48～52 ℃, maintain dyeing system circulation 50min;
(3.6) soap, wash, make cellulose base fiber fabric and dye product.
This dyeing alkali and low by salt amount for dyeing, and dyeing temperature is low (to be compared with traditional dyeing technique, dyeing can reduce respectively 30～40% with salt and alkali charge, dyeing temperature declines approximately 10 ℃), simultaneously, after dyeing the Apparent Depth of cellulose fiber textile can promote 10% left and right and its dyefastness be not less than traditional dyeing technique dye cellulose fiber textile, Washing reaches 4～5 grades, dry, wet friction COLOR FASTNESS reach respectively 4 grades above and more than 3 grades.
The foregoing is only preferred embodiments of the present invention, in fact each cited concrete raw material of the present invention, and the bound of each raw material, interval value, and the bound of technological parameter (as temperature, time etc.), interval value can realize the present invention, at this, do not enumerate embodiment.Therefore, above embodiment is in order to limit the present invention, and the common variation that those skilled in the art carries out within the scope of technical solution of the present invention and replacement all should be included in protection scope of the present invention.
Claims (10)
1. in, Resist Reactive Dyes, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: it comprises the following steps:
(1) dyeing cellulosic fabric is treated in preliminary treatment: by what treat that dyeing cellulosic fabric makes the aminated modification of part with fibre modifier modification, treat dyeing cellulosic fabric, described fibre modifier is diethylenetriamine, diethylenetriamine base propyl group dimethoxy silane, diethylenetriamine base propyl group diethoxy silane, diethylenetriamine base propyl trimethoxy silicane, diethylenetriamine base propyl-triethoxysilicane, triethylene tetramine, triethylene tetramine base propyl group dimethoxy silane, triethylene tetramine base propyl group diethoxy silane, triethylene tetramine base propyl trimethoxy silicane, the mixing of one or both in triethylene tetramine base propyl-triethoxysilicane, described fibre modifier is the 2～6wt% that treats dyeing cellulosic fabric,
(2) preliminary treatment REACTIVE DYES: by modification agent modification for middle Resist Reactive Dyes, make the middle Resist Reactive Dyes of activation modification; Described modification agent is a kind of in triethanolamine, Tri-n-Propylamine, triethylamine, trimethylamine, N methyldiethanol amine, N butyl diethanol amine; 3～9wt% that described modification agent is middle Resist Reactive Dyes;
(3) the low alkali dyeing of cellulose base fiber fabric less salt: treat dyeing cellulosic fabric under the condition that the middle Resist Reactive Dyes after dyeing cellulosic fabric and step (2) activation modification of the aminated modification of part after step (1) is processed exists at neutral electrolyte, inorganic base and demineralized water and carry out the low alkali dyeing of less salt, make cellulose base fiber fabric and dye product; Described middle Resist Reactive Dyes is to treat that a wt%, a of dyeing cellulosic fabric are 1～5, the mass concentration of described neutral electrolyte in system is b g/L, b value is 30～82, the mass concentration of described inorganic base in system is c g/L, c value is 8～17, and b=(22+8a)～(22+12a), c=(7+a)～(7+2a).
2. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: in described step (1), the modification temperature of cellulose base fiber fabric is 35～55 ℃, and modification time is 10～30min.
3. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: in described step (2), the modification temperature of Resist Reactive Dyes is 40～60 ℃, and modification time is 10～40min.
4. middle Resist Reactive Dyes according to claim 1 is to the low alkali dyeing of the less salt of cellulose base fiber fabric, it is characterized in that: described step (3) is the aminated modification of part after step (1) is processed treats dyeing cellulosic fabric, middle Resist Reactive Dyes after step (2) activation modification, at 40～55 ℃, maintain dyeing system circulation 10～30min, then in dyeing system, first add a part of neutral electrolyte and a part of inorganic base, described neutral electrolyte and inorganic base are respectively 30～50wt% of total amount separately, at 40～55 ℃, maintain dyeing system circulation 5～15min, then in dyeing system, add remaining neutral electrolyte, at 40～55 ℃, maintain dyeing system circulation 20～40min, in dyeing system, add remaining inorganic base again, at 40～55 ℃, maintain dyeing system circulation 50～70min, finally by soaping, washing, obtain cellulose base fiber fabric and dye product.
5. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: described cellulose base fiber fabric is the fabric semi-products that cellulose fiber content is not less than also process destarch of 70wt%, kiering.
6. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: described middle Resist Reactive Dyes is the REACTIVE DYES that at least contains a vinyl sulfone(RemzaolHuo Xingranliaohuoxingjituan) active group or the REACTIVE DYES that at least contains a difluoro one chlorine pyrimidine active group.
7. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: described inorganic base is sodium carbonate.
8. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: described neutral electrolyte is anhydrous sodium sulfate.
9. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: described demineralized water is that total hardness is less than 30ppmCaCO
3soft water, the weight of described demineralized water is to treat 7～10 times of dyeing cellulosic fabric weight.
10. middle Resist Reactive Dyes according to claim 1, to the low alkali dyeing of the less salt of cellulose base fiber fabric, is characterized in that: its concrete steps are:
Step (1): dyeing cellulosic fabric is treated in preliminary treatment
(1.1) by 95～99wt% of demineralized water total amount, fibre modifier, treat that dyeing cellulosic fabric drops into dyeing machine;
(1.2) be warming up to 35～55 ℃, be incubated and maintain the circulation 10～30min treating between dyeing cellulosic fabric, demineralized water, fibre modifier, what make the aminated modification of part treats dyeing cellulosic fabric;
Step (2): preliminary treatment REACTIVE DYES
(2.1) remaining demineralized water, modification agent, middle Resist Reactive Dyes are dropped into the pill tank of dyeing machine;
(2.2) be warming up to 40～60 ℃, be incubated and maintain the circulation 10～40min between middle Resist Reactive Dyes, demineralized water, modification agent, make the middle Resist Reactive Dyes of activation modification;
Step (3): the low alkali dyeing of cellulose base fiber fabric less salt
(3.1) the middle Resist Reactive Dyes solution for vacuum of step (2.2) activation modification is pumped among the dyeing machine of step (1.2);
(3.2), at 40～55 ℃, maintain dyeing system circulation 10～30min;
(3.3) in dyeing system, first add a part of neutral electrolyte and a part of inorganic base, it accounts for the content of total amount separately and is 30～50wt%, then, at 40～55 ℃, maintains dyeing system circulation 5～15min;
(3.4) in dyeing system, add remaining neutral electrolyte, at 40～55 ℃, maintain dyeing system circulation 20～40min;
(3.5) in dyeing system, add remaining inorganic base, at 40～55 ℃, maintain dyeing system circulation 50～70min;
(3.6) soap, wash, make cellulose base fiber fabric and dye product.
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Effective date of registration: 20170421 Address after: 528143 Foshan Sanshui Industrial Zone, Guangdong, Datang Park, No. 77-2 Patentee after: Foshan City Ma Dasheng Textile Company Limited Address before: 1 College of chemistry and chemical engineering, Wuhan Textile University, Hongshan, Hubei 430073, China Patentee before: Wuhan Textile University |