CN104611954A - One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye - Google Patents
One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye Download PDFInfo
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Abstract
The invention relates to a one-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye. The method comprises steps as follows: first, dye liquor is prepared and then heated to reach 40 DEG C, the cotton-acrylic fabric is added into the dye liquor, the bath ratio is 1:(10-15), stirring and dyeing are performed for 2-10 min, then the temperature is raised to 95-98 DEG C, stirring and dyeing under heat preservation condition are continuously performed for 60 min, the temperature is reduced to 65-70 DEG C, a dispersant and cationic dye are added, the temperature is raised to 100 DEG C at the rate of 1-1.5 DEG C per minute, stirring and dyeing under heat preservation condition are performed for 45-60 min, then the temperature is reduced to 65-70 DEG C at the rate of 2-5 DEG C per minute, and finally, the cotton-acrylic fabric is dried after washing and color fixing treatment. The technical scheme has simple process, is convenient to operate and has no special requirements for equipment, large-scale production can be performed through conventional dyeing equipment, and the one-bath dyeing method has wide application prospect.
Description
Technical field
The invention belongs to nitrile cotton fabric dyeing process method field, particularly a kind of direct dyes and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC.
Background technology
The advantages such as cotton fiber is as native cellulose fibre, owing to having good water imbibition, hygroscopicity, easy dyeing, soft, intensity appropriateness, comfortable and easy to wear, are widely used in productive life.Acrylic fibers are domestic goods titles of polyacrylonitrile fibre, have many premium properties, as fiber softening, warmth retention property is good, has excellent light resistance and radiation resistance, can be widely used in and replace wool to make varicosity knitting wool, acrylic fibre blanket, acrylic fibers carpet, has the title of " synthetic wool ".In addition, also can with cotton, artificial fibre, other synthetic fiber blending, be made into various dress material and indoor article.Acrylic fibers and BLENDED FABRIC thereof have the advantages such as good springiness, wrinkle resistance, conformality are good, quick-drying washable, and the dark welcome by consumers in general is more satisfactory garment material.Nitrile cotton blended fabric has the lovely luster of acrylic fibers, and elasticity is good, retains the features such as the good hygroscopicity of cotton fiber, affordable time logical.Therefore, the potentiality developing acrylic fibers blending product are very large.At present, multiple fields of the textile industry such as cotton/technology of acrylic blended yarn knitted fabric is widely used in underwear, cold-proof underwear, sweater, family are spun, and demand is very vigorous.
Cellulose fibre is electronegative in dye bath, and the dyestuff of great majority dye cotton is anionic property, and due to electrostatic repulsion, the upper dye of dyestuff is suppressed, and is reduce electrostatic repulsion, needs to add a large amount of neutral electrolyte to improve dyestuff dye-uptake in dye bath.According to the difference of dye structure, color, salt dosage is generally 30 ~ 150g/L.Even so, the dye-uptake of dyestuff and degree of fixation are still lower, especially REACTIVE DYES.Which not only adds production cost, and a large amount of discharge containing hydrolised dye and electrolytical dyeing waste-water, bring great pollution to environment.In addition, acrylic fiber physical arrangement is tight, and hydrone is difficult to penetrate into fibrous inside, and swelling smaller in water of acrylic fiber, this characteristic makes short liquor dyeing face the challenge.General employing cation dyes dye to acrylic fibers, both are combined by ionic bond, because affinity is higher, also there is the problem that migration property is poor, when dyeing be warming up to about 80 DEG C reach fiber critical-temperature time, even adopt usually larger bath raio 1: 20 ~ 25 when, because dyestuff colouring speed is uprushed, be easy to produce dyeing flower phenomenon.Be not difficult to imagine, select short liquor ratio just easier dyeing flower.This is the unfavorable factor of carrying out short liquor dyeing.
Because cotton fiber is applicable to using reactive dyeing in the basic conditions, and acrylic fiber is applicable to using cationic dyeing under mildly acidic conditions, and the alkali resistance of acrylic fiber is poor, so the cotton product of traditional nitrile adopts REACTIVE DYES and cation dyes two one bath two-step method to produce.During production, first contaminate acrylic fiber and contaminate cotton fiber again or first contaminate cotton fiber after stain acrylic fiber.Problems existing is as follows: first, and two one bath two-step methods carry out that the dyeing time is long, and production efficiency is low, but also wastes energy very much, so need to improve.Secondly, two one bath two-step method dyeings are complicated, and bring a lot of trouble to technological staff, have impact on the stability contorting of production technology, cause unstable product quality, technical risk is larger.And due to the easy pilling of overlong time fabric, feel is coarse, the comfortableness of fabric greatly can be reduced like this, the Application Areas of limits product.Finally, because technique is long, flow process is many, cause sewage to discharge in a large number, dyeing and cost of sewage disposal increase.
In disclosed report, about the report of nitrile cotton blended fabric one-bath one-step dyeing or two-step method is few, wherein major part relates to the REACTIVE DYES that is and cation dyes are inquired into the dyeing of nitrile COTTON FABRIC, the neutral One Bath Dyeing Process of nitrile COTTON FABRIC is had to put into practice (hosiery industry, 2013,6,56 ~ 58), a kind of nitrile cotton blended fabric one-bath one-step dyeing dyeing (number of patent application 201210477796.0).And the report of direct dyes and cation dyes one-bath two-step process is less, only relates to nitrile cotton blended fabric dyeing and finishing technology and inquire into (hosiery industry, 2000,6,43 ~ 44).
Fu Shen ring, Ji Haidong, Chi Xiufang, Cao Mingli. the neutral One Bath Dyeing Process practice of nitrile COTTON FABRIC, hosiery industry, 2013,6,56 ~ 58.Use buffer AC-608, in conjunction with the CN type REACTIVE DYES of Japanese chemical drug company and the SD type dispersible cationic dyestuff in Qing Cheng dyestuff factory, Shanghai, realize the nitrile COTTON FABRIC one-bath dyeing processing technology under neutrallty condition.Result shows, and this One Bath Dyeing Process, compared with two one bath two-step methods, has more advantage.
Cao's machine is good, Wang Fei, Cao Chenghui, and the first month of spring is beautiful, Xu Zhizhong, Zhang Xiaofeng, An Gang. a kind of nitrile cotton blended fabric one-bath one-step dyeing dyeing (number of patent application 201210477796.0).Neutral fixation REACTIVE DYES and cation dyes are adopted to carry out exhaust dyeing to nitrile cotton blended fabric, the active group of neutral fixation REACTIVE DYES is nicotinic acid s-triazine active group, dye liquor is mixed with by water-soluble for cation dyes during dyeing, add antisettling agent again, after add neutral fixation REACTIVE DYES, regulate dye liquor pH value with NaAc_HAc buffer solution, after dyeing, fabric has darker color, and fastness to washing and crock fastness all reach more than 4 grades.
Shen Yuqin, Zeng Ruiling, Fu Wenyan. nitrile cotton blended fabric dyeing and finishing technology is inquired into, hosiery industry, 2000,6,43 ~ 44.Direct dyes and cation dyes are adopted to adopt one-bath one-step dyeing to dye to nitrile cotton blended fabric.Not only technique is simple and save the expense of dyeization auxiliary agent and water power vapour, greatly reduces dyeing cost.Soaping fastness is 3-4 level, perspiration fastness is 3-4 level, crock fastness is 4 grades.
In a word, the subject matter that the cotton blending of nitrile or MIXED FABRIC exist in current dyeing and printing process process is that production efficiency is low, and technological process is longer, and the energy is large with the consumption of dye material.Therefore to explore new technique as one-bath one-step dyeing or one bath two stage process dye to nitrile cotton blended fabric be highly significant.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of co-bathing dyeing method that direct dyes and cation dyes contaminate nitrile COTTON FABRIC, technical scheme technique of the present invention is simple, convenient operation, to equipment without particular/special requirement, utilize conventional dyeing equipment just can carry out large-scale production, have broad application prospects.
A kind of direct dyes of the present invention and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, comprising:
First prepare dye liquor: direct dyes 1-2%o.w.f, glauber salt 10%o.w.f, levelling agent paregal O 2g/L, acetic acid 2.5%o.w.f, sodium acetate 1%o.w.f, pH value is 4-5; Then dye liquor is warming up to 40 DEG C, add nitrile COTTON FABRIC; bath raio is 1:10-15, after stirring dyeing 2-10min, be warming up to 95-98 DEG C, continue to stir insulation dyeing 60min; be then cooled to 65-70 DEG C; after then adding dispersant and cation dyes, be warming up to 100 DEG C, stir insulation dyeing 45-60min; be cooled to 65-70 DEG C again, finally wash fixation treatment post-drying.
Described nitrile COTTON FABRIC carries out pre-treatment in pretreatment solution, and wherein pre-treatment temperature is 80-90 DEG C, and the time is 0.5-1h, and bath raio is 1:10, and pretreatment solution component is: soda ash 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Described heating rate is 1 ~ 1.5 DEG C/min; Rate of temperature fall is 2-5 DEG C/min.
Described direct dyes are one or more in the red K-BE of tin profit, the yellow K-2G of tin profit, the blue K-BE of tin profit.
Described dispersant is dispersant N; Cation dyes are: A Si bends one or more of drawing Chong Hong GL-N300, A Si to bend to draw Chong Jinhuang GL-E200, A Si to bend and drawing in Chong Lan GRL300.
The consumption of described dispersant is 1-2g/L, and the consumption of cation dyes is 1%-0.5%o.w.f.
The temperature of described washing fixation treatment is 40 DEG C, and the time is 20min, and bath raio is 1:10.
Described washing fixation treatment color-fixing agent used is Fixative R-755, and consumption is 1%o.w.f.
The present invention adopts direct dyes and cation dyes as the dyeing dyestuff of nitrile cotton blended fabric, realizes the one bath two stage process dyeing of nitrile cotton blended fabric.Direct dyes are one of dye class that a veriety is many, quantity is large.The mode that with fiber be combined special due to it and the variation of self structure become purposes dye class the most widely.Such application is easy, can to the cellulose fibre printing and dyeing such as cotton, numb in neutral or weak base bath, is widely used in family's dyeing and paper, wood staining processes.Direct dyes molecular structure is line style, has flatness.According to the difference of direct dyes to temperature, dye-uptake and salt effect, roughly can be divided into level-dyeing property, salt effect, temperature effect three class, molecular structure of dye have the groups such as sulfonic group, water soluble.Dyestuff in the solution by fibers adsorption to surface, then the continuous amorphous region to fiber is spread, and forms the combination of hydrogen bond and Van der Waals force with the large molecule of fiber.And the dedicated dye cation dyes of acrylic fiber dyeing are positively charged in aqueous, the acidic-group of Third monomer is combined and upper dye fiber in acrylic fiber.
Blended yarn woven fabric co-bathing dyeing process generally need multiple dyestuff with the use of, wash nitrile blended product and there is following problem in co-bathing dyeing processing: the cation dyes with positive lotus property and the direct dyes co-bathing dyeing containing negative charge dispersant easily produce aggregate and precipitate and cause BLENDED FABRIC look flower, the temperature of direct dyes dye cotton generally must at about 100 DEG C, if temperature is too low, the upper dye of direct dyes on cotton fiber is insufficient, and dye-uptake is too low.And the dyeing temperature of acrylic fiber is unsuitable too high, otherwise acrylic fiber is by yellowing and excess shrinkage, causes feel to be hardened.Therefore, when adopting one-bath dyeing, must prevent dye aggregation from precipitating the dyeability should taking into account the different fiber of two classes and two class different dyes in blending component with the highest dyeing temperature.
Consider and carry out corrective measure for solving the problem from the following aspects:
(1) selection of dyestuff.Varieties of Direct Dyes is many, quantity is large, and as contaminating the general dyeing of income in the basic conditions of cotton dyestuff in the method, and cation dyes are as the dedicated dye of acrylic fibres dyeing, generally dye in acid condition, and dye-uptake is general higher.Owing to dyeing in a bath dye liquor, so should consider, the dyestuff that the energy pH scope of application is wider should be chosen, dye under neutrality or solutions of weak acidity.Therefore direct dyes select the red K-BE of tin profit, the yellow K-2G of tin profit, the blue K-BE of tin profit, cation dyes are selected A Si to bend and are drawn Chong Hong GL-N300, and A Si bends and draws Chong Jinhuang GL-E200, and A Si bends and draws Chong Lan GRL300 etc.Direct dyes hardly on contaminate acrylic fiber, to acrylic fabric staining hardly, cation dyes may have staining situation to COTTON FABRIC.If can suitably reduce cation dyes consumption when therefore doing one-bath and tone-in-tone dyeing product.
(2) application of dyeing assistant.Cation dyes belong to positive dyestuff, and direct dyes belong to negative dyestuff.Yin, yang zwitterionic dyestuff dyes in a bath dye liquor, will generate sediment, cause loose colour or color spot with electrostatic attraction.So the key issue selecting yin, yang zwitterionic dyestuff to dye in a bath dye liquor, select the dyeing assistant of adaptation exactly.The intermixture of sodium sulphate and nonionic levelling agent paregal O can play good effect.The mechanism of action is as follows:
1. sodium sulphate: the first, prevents the effect of helping each other between two kinds of dyestuffs.In dye liquor, the sulfate ion (SO that sodium sulphate ionizes out
4 2-) and the pigment anion (R-SO that ionizes out of straight dyestuff
3 -), but sulfate ion quality is less than pigment anion, so sulfate ion just can the cation sites that ionizes out of preferential and cation dyes under the same conditions.In addition, due to common-ion effect, the sodium ion that sulfate radical ionizes out can suppress direct dyes to ionize, and so just makes most of cation dyes and direct dyes be in molecular state, generates sediment to prevent the interphase interaction of two kinds of yin, yang pigment ions.Secondly, to the slow dye effect of cation dyes.The sodium ion that sodium sulphate ionizes out is less than the pigment CATION of cation dyes, the negative group effect of energy preferentially and on acrylic fiber; And sulfate ion is than the negative group on acrylic fiber, can preferentially with the pigment cation sites of cation dyes.Like this, within the unit interval, reduce with regard to the ion populations making the group of most of cation dyes and acrylic fiber be in form of electrical charges, thus delay dye process, serve certain level dyeing effect.3rd, to the short dye effect of direct dyes.According to salt effect, sodium ion can also reduce the negative charge on cotton fiber surface, thus reduces the negative electrical charge repulsion between direct dyes and cotton fiber, enhances intermolecular attraction, facilitates the upper dye effect of direct dyes to cotton fiber.
2. nonionic levelling agent paregal O: levelling agent paregal O can make cation dyes and direct dyes molecule be in suspended state, more effectively prevents yin, yang zwitterionic dyestuff from generating sediment, keeps the stability of dye liquor.Meanwhile, also play a part to spread, soak into, clean and improve fabric feeling.
3. dispersant N: dispersant N is naphthalene sulfonic acid-formaldehyde condensation product sodium salt, and dye industry is mainly used as spreading aids, rubber latex stabilizing agent when dispersion and color lake manufacture, and leather helps agent of trampling on.Adding of dispersant N also can make cation dyes and anionic dye keep stable, is conducive to the diffusion of dye molecule to fabric simultaneously.
Because salt and levelling agent paregal O and dispersant N have above-mentioned effect in dye liquor, so the dyeing of yin, yang zwitterionic dyestuff to the single bath process of nitrile cotton mixture fabric can be completed well, ensure the homochromatism of two kinds of fibers.
(3) dyeing pre-treatment.First kiering process is carried out, to improve pliability and dyeability before dyeing.Due to the not resistance to highly basic of acrylic fibers, therefore, under weak basic condition, adopt soda ash, bleeding agent processes, acrylic fibers effect is comparatively relaxed.Also can remove the slurry in nitrile COTTON FABRIC and impurity simultaneously, make feel better, be beneficial to the dyeing process in rear road.
(4) selection of colouring method.Due to direct dyes not on contaminate acrylic fiber, to acrylic fabric staining hardly, and cation dyes positively charged in dye liquor, staining situation may be had to cotton fiber.So this law adopts the mode first contaminating cotton fiber after stain acrylic fibers, add cation dyes after direct dyes contaminate cotton fiber again and acrylic fiber is dyeed, reduce the generation of staining situation; The selection of dyeing temperature is also different from the difference of fabric in addition.According to the design feature of direct dyes molecule, the Van der Waals force between direct dyes and cellulosic molecule and Hyarogen-bonding are comparatively large, dyestuff from fiber surface to the diffusion of fibrous inside be slowly.In order to improve diffusion rate, generally by higher temperature during dyeing, COTTON FABRIC dyes under about 95 DEG C, insulation dyeing certain hour.And acrylic fiber beginning dye temperature below vitrification point, should be advisable with about 70 DEG C, because acrylic fabric dye-uptake is higher, therefore to programming rate be controlled, and dye when boiling and boiling, held for some time, dye light color can at about 30min, and look in dye, heavy colour can at 60 ~ 90min.
Dyeing post processing: adopt cationic fixing agent R-755 to carry out fixation post processing to fabric, wash away loose colour, have larger reactivity due to it to dye anion simultaneously, the dye molecule on product dyed thereby is increased, hydrophilic group is closed on fabric and forms insoluble dyes salt precipitation.Like this, can prevent dyestuff from coming off from fabric because of ionization and being hydrolyzed, thus improve every dyefastness of dyestuff.
beneficial effect
The present invention adopts direct dyes and cation dyes as the dyeing dyestuff of nitrile cotton blended fabric, achieve the one bath two stage process dyeing of nitrile cotton blended fabric, it is complicated that this method had both solved REACTIVE DYES two one-bath two-step process technique process, the energy and the large shortcoming of water resource energy consumption, also salt dosage in REACTIVE DYES one-bath one-step dyeing is solved higher, the shortcoming that REACTIVE DYES utilization rate is not high, also solves the problem that direct dyes/cation dyes one-bath one-step dyeing dyeing product fastness is on the low side simultaneously; The low price of direct dyes, replacing that REACTIVE DYES contaminates cotton can have good economic benefit;
Technical scheme technique of the present invention is simple, and convenient operation, to equipment without particular/special requirement, utilizes conventional dyeing equipment just can carry out large-scale production, have broad application prospects.
The present invention open has good color fastness to washing, the direct dyes of fastness to rubbing and cation dyes concurrently by screening, more supporting dispersant, is had the method for good every fastness by simple dyeing preparation; The co-bathing dyeing method of acrylic fibers provided by the invention and cotton fiber, achieve can meet in cation dyes and contaminate acrylic fibers, can meet again in direct dyes and contaminate cotton environment, also achieve the technological innovation that zwitterion one-bath dyeing produces nothing precipitation simultaneously, this method makes the process time greatly shorten, improve output, reduce the energy consumption of water, electricity, vapour, thus reduce cost.In addition, make fabric feel better because dyeing time shortens, and reduce pilling effect, improve the serviceability of product.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention; Wherein 1. glauber salt; 2. direct dyes; 3. levelling agent paregal O; 4. Acetic acid-sodium acetate buffer system 5. dispersant N; 6. cation dyes.
Detailed description of the invention
Performance test methods of the present invention:
1. the mensuration of K/S value.Sample is built up four layers of position that test five is different on SF600 type Computer color testing color matching instrument, when the error of each reading is less than 0.1, write down the K/S value of every block sample;
2. color fastness to washing.With reference to GB/T 3921.3 1 l997 " textile color stability test color fastness to washing: test 3 ";
3. colour fastness to rubbing.With reference to GB/T 3920-1997 " textile color stability test colour fastness to rubbing ".
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
First carry out pre-treatment to nitrile cotton blended fabric, temperature is 90 DEG C, and the time is 1h, and bath raio is 1:10, and pretreatment liquid component is: soda ash 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Preparation dye liquor (the red K-BE 2%o.w.f of direct dyes tin profit, glauber salt 10%o.w.f, levelling agent paregal O 2g/L, acetic acid 2.5%o.w.f, sodium acetate 1%o.w.f, pH value 4), be warming up to 40 DEG C, add cotton blending cloth specimen (bath raio 1:15) of nitrile, stir dyeing 5min, 98 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, (A Si bends and draws Chong Hong GL-N3001%O.W.F to add cation dyes and dispersant, dispersant N 2g/L), 100 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, washing fixation (Fixative R-7551%owf, bath raio 1:10, 40 DEG C of process 20min), dry, test performance (the results are shown in Table 1).
Table 1
(above COLOR FASTNESS is staining fastness)
Embodiment 2
First carry out pre-treatment to nitrile cotton blended fabric, temperature is 90 DEG C, and the time is 1h, and bath raio is 1:10, and pretreatment solution component is: soda ash 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Preparation dye liquor (the yellow K-2G 2%o.w.f of direct dyes tin profit, glauber salt 10%o.w.f, dispersant paregal O 2g/L, acetic acid 2.5%o.w.f, sodium acetate 1%o.w.f, pH value 4), be warming up to 40 DEG C, add cotton blending cloth specimen (bath raio 1:15) of nitrile, stir dyeing 5min, 98 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, (A Si bends the yellow GL-E2001%o.w.f of lashing wire to add cation dyes and dispersant, dispersant N 2g/L), 100 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, washing fixation (Fixative R-7551%owf, bath raio 1:10, 20min is processed) at 40 DEG C, dry, test performance (the results are shown in Table 2).
Table 2
(above COLOR FASTNESS is staining fastness)
Embodiment 3
First carry out pre-treatment to nitrile cotton blended fabric, temperature is 90 DEG C, and the time is 1h, and bath raio is 1:10, and pretreatment solution component is: soda ash 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Preparation dye liquor (the blue K-BE 2%o.w.f of direct dyes tin profit, glauber salt 10%o.w.f, dispersant paregal O 2g/L, acetic acid 2.5%o.w.f, sodium acetate 1%o.w.f, pH value 4), be warming up to 40 DEG C, add cotton blending cloth specimen (bath raio 1:15) of nitrile, stir dyeing 5min, 98 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, (A Si bends and draws Chong Lan GRL3001%o.w.f to add cation dyes and dispersant, dispersant N 2g/L), 100 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, washing fixation (Fixative R-7551%owf, bath raio 1:10, 40 DEG C of process 20min), dry, test performance (the results are shown in Table 3).
Table 3
(above COLOR FASTNESS is staining fastness)
Embodiment 4
First carry out pre-treatment to nitrile cotton blended fabric, temperature is 90 DEG C, and the time is 1h, and bath raio is 1:10, and pretreatment solution component is: soda ash 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Preparation dye liquor (the red K-BE 1%o.w.f of direct dyes tin profit, glauber salt 10%o.w.f, dispersant paregal O 2g/L, acetic acid 2.5%o.w.f, sodium acetate 1%o.w.f, pH value 4), be warming up to 40 DEG C, add cotton blending cloth specimen (bath raio 1:15) of nitrile, stir dyeing 5min, 98 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, (A Si bends and draws Chong Hong GL-N3000.5%O.W.F to add cation dyes and dispersant, dispersant N 2g/L), 100 DEG C are warming up to 1 DEG C/min, stir insulation dyeing 60min, 65 DEG C are cooled to 2 DEG C/min, washing fixation (Fixative R-7551%owf, bath raio 1:10, 40 DEG C of process 20min), dry, test performance (the results are shown in Table 4).
Table 4
(above COLOR FASTNESS is variable color fastness)
The present invention adopts the direct dyes of pH value wider range and cation dyes to dye for nitrile cotton blended fabric one-bath one-step dyeing, and the apparent shade depth value (K/S value) of DYED FABRICS is higher, and the washable and crock fastness of DYED FABRICS is all more than 4 grades.
Claims (8)
1. direct dyes and cation dyes contaminate a co-bathing dyeing method for nitrile COTTON FABRIC, comprising:
First prepare dye liquor: direct dyes 1-2%o.w.f, glauber salt 10%o.w.f, levelling agent paregal O 2g/L, acetic acid 2.5%o.w.f, sodium acetate 1%o.w.f, pH value is 4-5; Then dye liquor is warming up to 40 DEG C, add nitrile COTTON FABRIC; bath raio is 1:10-15, after stirring dyeing 2-10min, be warming up to 95-98 DEG C, continue to stir insulation dyeing 60min; be then cooled to 65-70 DEG C; after then adding dispersant and cation dyes, be warming up to 100 DEG C, stir insulation dyeing 45-60min; be cooled to 65-70 DEG C again, finally wash fixation treatment post-drying.
2. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: described nitrile COTTON FABRIC carries out pre-treatment in pretreatment solution, wherein pre-treatment temperature be 80-90 DEG C, time is 0.5-1h; bath raio is 1:10; pretreatment solution component is: soda ash 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
3. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: described heating rate is 1 ~ 1.5 DEG C/min; Rate of temperature fall is 2-5 DEG C/min.
4. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: described direct dyes are one or more in the red K-BE of tin profit, the yellow K-2G of tin profit, the blue K-BE of tin profit.
5. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: described dispersant is dispersant N; Cation dyes are: A Si bends one or more of drawing Chong Hong GL-N300, A Si to bend to draw Chong Jinhuang GL-E200, A Si to bend and drawing in Chong Lan GRL300.
6. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: the consumption of described dispersant is 1-2g/L, and the consumption of cation dyes is 1%-0.5%o.w.f.
7. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: the temperature of described washing fixation treatment is 40 DEG C, and the time is 20min, and bath raio is 1:10.
8. a kind of direct dyes according to claim 1 and cation dyes contaminate the co-bathing dyeing method of nitrile COTTON FABRIC, it is characterized in that: described washing fixation treatment color-fixing agent used is Fixative R-755, and consumption is 1%o.w.f.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106544887A (en) * | 2016-10-09 | 2017-03-29 | 浙江三元纺织有限公司 | A kind of production method of cotton acrylic fabric |
| CN110318274A (en) * | 2019-05-23 | 2019-10-11 | 浙江嘉名染整有限公司 | A kind of energy-efficient nitrile cotton fabric One Bath Dyeing Process |
| CN113584910A (en) * | 2021-06-17 | 2021-11-02 | 阳信思踏奇实业有限责任公司 | Wool and wool acrylic blending process with high rubbing fastness and high soaping fastness |
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| CN102936859A (en) * | 2012-11-22 | 2013-02-20 | 河南工程学院 | One-bath one-step dyeing method for cotton and nitrile blended fabric |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544887A (en) * | 2016-10-09 | 2017-03-29 | 浙江三元纺织有限公司 | A kind of production method of cotton acrylic fabric |
| CN110318274A (en) * | 2019-05-23 | 2019-10-11 | 浙江嘉名染整有限公司 | A kind of energy-efficient nitrile cotton fabric One Bath Dyeing Process |
| CN110318274B (en) * | 2019-05-23 | 2021-11-09 | 浙江嘉名染整有限公司 | Efficient and energy-saving one-bath dyeing process for acrylic cotton fabric |
| CN113584910A (en) * | 2021-06-17 | 2021-11-02 | 阳信思踏奇实业有限责任公司 | Wool and wool acrylic blending process with high rubbing fastness and high soaping fastness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104611954B (en) | 2017-02-22 |
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