Background technology
Sol-gel process is meant that inorganic matter or metal alkoxide solidify through solution, colloidal sol, gel, again the oxide that forms through heat treatment or the method for other compound solid.Sol-gel process can be used in the multiple industry.In recent years, the application of sol-gel process in textile industry is increasing.
At present, outlet textile fabric and clothes are more and more higher to the requirement of fastness, but fastness phenomenons on the low side such as many water-soluble dyes still exist friction, soap, Exposure to Sunlight have only 1 grade as the soaping fastness of direct light turquoise blue GL, fastness to wet rubbing has only 2 grades, and dry fastness also has only 3 grades.In addition, a lot of dyestuffs also exist the low problem of utilization rate in using, and as some REACTIVE DYES, degree of fixation is less than 60%.Handle at present often and reduce the water-disintegrable of dyestuff on the fiber, to improve dye utilization rate and dyefastness by color-fixing agent.
With color-fixing agent fabric being carried out fixation treatment has a lot of limitation, as causes that the color ligh modification of dyestuff, dyeing vividness reduce, introduced Cu
2+, Cr
3+Plasma has increased problems such as the difficulty of wastewater treatment and formaldehyde release.In addition, some color-fixing agent accommodations are narrow, as the type of the anti-chlorine polycation color-fixing agent based on dialkyl group allyl amine derivative, can prevent that look from becoming and the reduction of the light fastness of anti-chlorine, but the fastness to washing of fixation fabric are not very high.
Sol-gel technique can be applied to the textiles manufacture field to improve fixing property or to give textiles new function, as antistatic behaviour, water and oil repellant, anti-flammability, water retention property etc.Prepared titaniferous Nano sol with butyl titanate as presoma with sol-gel technique among the patent CN1587496, and adopt roll-dry by the fire-baking technology carries out anti UV finishing to COTTON FABRIC, fabric excellence, long-lasting ultraviolet radiation protective property are given in the use of combined with fluorescent brightening agent and synthetic latex simultaneously.Prepared a kind of Ludox among the patent CN1546781, adopt DYED FABRICS to pad the method for back arrangement, textiles carried out 100-180 ℃ heat treatment, make the thin and transparent gel film that on fabric, forms one deck inorganic network structure, the dye molecule net on fabric, is played tint retention to the dyestuff on the textiles.Method with this fixing finish is carried out fixation to DYED FABRICS, can improve the coloration of textile materials fastness, though can not bring the problem of environment and coloured light aspect, has prolonged the coloration of textile materials technological process.
This patent carries out hydridization with dyestuff and colloidal sol, forms new dyeing system.In this colloidal sol dyeing liquor to textile dyeing, because colloidal sol is transformed into the gel of the loose structure with adsorptivity in the process of baking, dyestuff is anchored in the formed gel film, has improved dye level and dyefastness, has simplified the dyeing flow process.
Summary of the invention:
The object of the present invention is to provide a kind of colloidal sol dyeing liquor.
Another object of the present invention provides a kind of preparation method of above-mentioned colloidal sol dyeing liquor, and this method is selected Soluble Anions dyestuff, presoma, coupling agent, catalyst, solvent, water for use, can be at a lower temperature as the room temperature preparation colloidal sol dyeing liquor.
Purpose of the present invention also provides the application of a kind of above-mentioned colloidal sol dyeing liquor dyeing aspect raising textile dyeing fastness and dye level.Promptly adopt colloidal sol dyeing liquor of the present invention fabric to be contaminated or pad dyeing dyeing processing, again through heat treatment, Ludox in the dyeing liquor carries out the embedding fixation at the three-dimensional netted film of fiber surface formation one deck porous to the dyestuff on the fabric, has improved dyefastness.
Compare with traditional dyeing, the present invention has following characteristics:
1. can improve the utilization rate of dyestuff;
2. dyeing is convenient, does not need to use separately the color-fixing agent fixation;
3. formaldehydeless;
4. can reduce dyeing temperature;
5. can improve textile dyeing dry friction, wet friction, soap and fade and soap staining fastness.
The specific embodiment:
Dyestuff among the present invention is a dyestuff commonly used in the industry, comprises direct dyes and REACTIVE DYES.Direct dyes comprise azo class direct dyes and phthalocyanines direct dyes; REACTIVE DYES comprises halo s-triazine heterocyclic active dyestuff, halogen pyrimidines REACTIVE DYES and vinyl sulfone(Remzaol class REACTIVE DYES.
Presoma among the present invention is methyl silicate, ethyl orthosilicate, butyl silicate etc.
Catalyst among the present invention can be hydrochloric acid, formic acid, acetate, nitric acid, acetic acid etc.
Solvent among the present invention can be ethanol, methyl alcohol, propyl alcohol, butanols, ethylene glycol etc.
Coupling agent among the present invention can be 3-glycidyl ether trimethoxy silane (GPTMS), γ-(2,3 epoxies, third oxygen) propyl trimethoxy silicane, γ-r-chloropropyl trimethoxyl silane, γ-chloropropyl methyldiethoxysilane etc.
The fabric that the present invention was suitable for mainly contains COTTON FABRIC and BLENDED FABRIC thereof.
The present invention will be helped further to understand by following embodiment, but content of the present invention can not be limited.
(1) in three-neck flask, adds ethanol 30-70 part, ethyl orthosilicate 5-20 part, water 25-80 part and 3-glycidyl ether trimethoxy silane (GPTMS) 0.5-5 part successively.(50-600r/min) stirs 2-25min on magnetic stirring apparatus, with this understanding with the hydrochloric acid of 0.5-5 part 0.01mol/L with 20-80 drip/speed of min is added drop-wise in the above-mentioned mixed liquor, then 0.5-8 part dye liquor dropwise is added drop-wise to (20-60 drips in) in the mixed liquor.After being added dropwise to complete, adjust the rotating speed (100-600r/min) of magnetic stirring apparatus, at room temperature continuous stirring 24h promptly obtains a kind of colloidal sol dyeing liquor.
(2) in the infrared ray dyeing machine, fabric is carried out exhaust dyeing or carry out pad dyeing dyeing with this colloidal sol dyeing liquor.Exhaust dyeing dye strength 0.5-5% (o.m.f), electrolyte consumption 2-10%, dyeing temperature 50-80 ℃, dyeing time 30-50min.Pad dyeing dye concentration 0.2-1.5%, electrolyte consumption 1-12%, pick-up 50-100%.After dyeing was finished, fabric baked 3-15min at 80-170 ℃ then at 40-80 ℃ of preliminary drying.
(3) method of testing, concrete division is as follows:
1. K/S value test
Fabric after the dyeing uses the xrite-8400 colour photometer at the CIELab chromatic measuring system, the D65 light source, and under 10 ° of visual angles, the K/S value of test fabric is measured 4 experimental points and is averaged.
2. soaping fastness test
The color fastness to washing of DYED FABRICS is pressed GB/T3921-1997 " textiles color fastness to washing experimental technique " test, and grades on the xrite-8400 colour photometer.
3. dried fastness to wet rubbing
The fastness to rubbing of DYED FABRICS is pressed GB/T3920-1997 " textiles colour fastness to rubbing experimental technique " test, and tests dried, fastness to wet rubbing on the xrite-8400 colour photometer.
(4) embodiment
The preparation of example 1 direct scarlet dye sols dyeing liquor
In three-neck flask, add 1 part of 45 parts of ethanol, 6 parts of ethyl orthosilicates, water 40 minutes and 3-glycidyl ether trimethoxy silane (GPTMS) successively.(300r/min) stirs 20min on magnetic stirring apparatus, the hydrochloric acid that is 0.01mol/L with 2 parts of concentration is added drop-wise in the above-mentioned mixed liquor with the speed of 40/min with this understanding, and the speed with 55/min drips 6 parts of direct scarlet 4BS dye liquors (concentration 2%) in mixed liquor then.After being added dropwise to complete, adjust the rotating speed (400r/min) of magnetic stirring apparatus, at room temperature continuous stirring 24h obtains a kind of colloidal sol dyeing liquor.
Direct scarlet 4BS (C.I.Direct Red 23) structural formula:
The preparation of example 2 reactive brilliant bule dye sols dyeing liquors
In three-neck flask, add 2 parts of 50 parts of ethanol, 9 parts of ethyl orthosilicates, water 33 minutes and 3-glycidyl ether trimethoxy silanes (GPTMS) successively.(300r/min) stirs 20min on magnetic stirring apparatus, with this understanding the formic acid of the 1 part of 0.01mol/L speed with 50/min is added drop-wise in the above-mentioned mixed liquor, then in mixed liquor with the Reactive Brilliant Blue KN-R dye liquor (concentration 1%) of speed Dropwise 5 part of 60/min.After being added dropwise to complete, adjust the rotating speed (400r/min) of magnetic stirring apparatus, at room temperature continuous stirring 24h obtains a kind of colloidal sol dyeing liquor.
Reactive Brilliant Blue KN-R (C.I.Reactive Blue 19), structural formula is:
Embodiment 3 direct scarlet dye sols dyeing liquor pad dyeing dyeing
Under magnetic stirrer (200r/min) effect, add 5% sodium chloride in the direct scarlet dye sols dyeing liquor.With this coloured sol solutions is that dye liquor carries out pad dyeing dyeing (dye strength is 1%) to plain weave poplin cloth COTTON FABRIC, and two soak two rolls, and pick-up is 80%, at 50 ℃ of preliminary drying 30min, bakes 5min at 150 ℃ then.Again with fabric washing, soap at last, dyeing is finished in washing, oven dry.
Through the soap fastness of fading of the plain weave poplin cloth COTTON FABRIC of above-mentioned dyeing is 3.5 grades, and the staining fastness of soaping is 4 grades, and dry fastness is 3 grades, and fastness to wet rubbing is 2.5 grades, and the K/S value that dyes has simultaneously reached 27.3.
The dyeing of embodiment 4 reactive brilliant bule dye sols dyeing liquors
Reactive brilliant bule dye sols dyeing liquor with preparation dyes dye strength 4% (o.m.f), bath raio 1: 30 to cotton ammonia elastic force cloth in the infrared ray dyeing machine.After room temperature went into to dye 10min, dye liquor was warming up to 70 ℃ with the speed of 1 ℃/min, and constant temperature dyeing adds 8% anhydrous sodium sulfate behind the dyeing 30min then, continued to take out fabric behind the dyeing 10min.At 40 ℃ of preliminary drying 30min, bake 8min at 110 ℃ then.Again with fabric washing, soap at last, dyeing is finished in washing, oven dry.
Through soaping of the cotton ammonia elastic force cloth of the above-mentioned dyeing fastness of fading is 3 grades, and the staining fastness of soaping is 3.5 grades, and dry fastness is 4 grades, and fastness to wet rubbing is 3 grades, and the K/S value that dyes has simultaneously reached 15.5.