CN104611954B - 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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- CN104611954B CN104611954B CN201510024234.4A CN201510024234A CN104611954B CN 104611954 B CN104611954 B CN 104611954B CN 201510024234 A CN201510024234 A CN 201510024234A CN 104611954 B CN104611954 B CN 104611954B
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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, contaminate nitrile cotton particularly to a kind of direct dyess with the dye of positive ion
The co-bathing dyeing method of fabric.
Background technology
, as native cellulose fibre, due to having good water absorption, hygroscopicity, easy dyeing, feel is soft for cotton fiber
Soft, intensity appropriateness, the advantages of comfortable and easy to wear, it is widely used in productive life.Acrylon are state's inside trades of polyacrylonitrile fibre
The name of an article claims, and has many premium properties, such as fiber softening, and warmth retention property is good, has excellent light resistance and radiation resistance, can be extensive
For replacing Pilus Caprae seu Oviss to make varicosity knitting wool, acrylic fibre blanket, acrylon carpet, there is the title of " synthetic wool ".In addition, also can be with cotton, people
Make fiber, other synthetic fibers blending, be made into various dress materials and indoor article.It is good, anti-that acrylon and its blend fabric have elasticity
Wrinkle property, conformality be good, quick-drying washable the advantages of, deep welcome by consumers in general, be more satisfactory garment material.Nitrile cotton mixes
Yarn fabric has the lovely luster of acrylon, and elasticity is good, when logical the features such as the good hygroscopicity of reservation cotton fiber, affordable.
Therefore, the potentiality of development acrylon blending product are very big.At present, cotton/technology of acrylic blended yarn knitted fabric is widely used in underwear, cold-proof underwear, hair
The multiple fields of the textile industries such as clothing, home textile, and demand is very vigorous.
Cellulose fibre is negatively charged in dye bath, and the dyestuff of great majority dye cotton is anionic property, because electrostatic is scolded
Power, the upper dye of dyestuff is suppressed, and for reducing electrostatic repulsion, needs to add a large amount of neutral electrolytes to improve dye on dyestuff in dye bath
Rate.According to the difference of dye structure, color, salt dosage is generally 30～150g/L.Even so, the dye-uptake of dyestuff and fixation
Rate is still relatively low, especially reactive dye.Which not only adds production cost, and contain the dye of hydrolised dye and electrolyte in a large number
The discharge of color waste water, brings great pollution to environment.In addition, acrylic fiber physical arrangement is closely, hydrone is difficult to permeate
To fibrous inside, acrylic fiber is swelling smaller in water, and this characteristic makes short liquor dyeing face the challenge.Typically using sun
Ionic dye dyes to acrylon, and both are combined by ionic bond, because affinity is higher, there is also poor the asking of migration property
Topic, when dyeing is warming up to 80 DEG C about and reaches fiber critical temperature, even with the feelings of generally larger bath raio 1: 20～25
Under condition, because dyestuff colouring speed is uprushed it is easy to produce dyeing flower phenomenon.It is not difficult to envision, be easier to dyeing flower from short liquor ratio.
This is by the unfavorable factor of short liquor dyeing.
Because cotton fiber is suitable for using reactive dyeing in the basic conditions, and acrylic fiber is suitable under mildly acidic conditions
With cationic dyeing, and the alkali resistance of acrylic fiber is poor, so traditional nitrile cotton product is using reactive dye and sun
Ionic dye two one bath two-step method produces.During production, first dye acrylic fiber contaminates cotton fiber again or first contaminates cotton fiber after stain acrylon fibre
Dimension.The problem existing is as follows：First, two one bath two-step methods long, the low production efficiency that carries out the dyeing time, but also very
Waste the energy, so needing to improve.Secondly, two one bath two-step method dyeings are complicated, bring a lot of troubles, shadow to technological staff
Ring the stability contorting of production technology, led to unstable product quality, technical risk is larger.And because overlong time fabric holds
Easily pilling, feel is coarse, so can substantially reduce the comfortableness of fabric, limits the application of product.Finally, due to work
Skill length, flow process are many, lead to sewage to discharge in a large number, and dyeing and cost of sewage disposal increase.
In disclosed report, the report about nitrile cotton blended fabric one-bath one-step dyeing or two-step method is few, wherein greatly
Part is related to the reactive dye being and the dye of positive ion and the dyeing of nitrile bafta is inquired into, and has nitrile bafta neutrality one-bath dyeing
Process practice (hosiery industry, 2013,6,56～58), a kind of nitrile cotton blended fabric one-bath one-step dyeing dyes (number of patent application
201210477796.0).And the report of direct dyess and dye of positive ion one-bath two-step process is less, only relate to nitrile cotton blended fabric
Dyeing and finishing technology inquires into (hosiery industry, 2000,6,43～44).
Fu Shen ring, Ji Haidong, Chi Xiufang, Cao Mingli. the neutrality One Bath Dyeing Process practice of nitrile bafta, hosiery industry,
2013,6,56～58.Using buffer agent AC-608, dyestuff celebrated into by CN type reactive dye and Shanghai in conjunction with Japanese chemical medicine company
The SD type dispersible cationic dyestuff of factory, realizes the nitrile bafta one-bath dyeing processing technique under neutrallty condition.Result shows, 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. and a kind of nitrile cotton blended fabric one bathes a step
Method dyes (number of patent application 201210477796.0).Using neutral fixation reactive dye and the dye of positive ion, nitrile cotton blend is knitted
Thing carries out exhaust dyeing, and the active group of neutral fixation reactive dye is nicotinic acid s-triazine active group, by the dye of positive ion during dyeing
It is dissolved in water and is configured to dye liquor, add antisettling agent, add neutral fixation reactive dye afterwards, use NaAc_HAc buffer solution
Adjust dye liquor pH value, after dyeing, fabric has deeper 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, and 2000,6,43～44.
Nitrile cotton blended fabric is dyeed using one-bath one-step dyeing using direct dyess and the dye of positive ion.Not only process is simple and section
Save the expense of dyeization auxiliary agent and water power vapour, greatly reduce dyeing cost.Soaping fastness is 3-4 level, perspiration fastness is 3-4 level,
Crock fastness is 4 grades.
In a word, nitrile cotton blend or union subject matter present in current dyeing and printing process process are low production efficiencies
Under, technological process is longer, and the energy and dye material consume greatly.Therefore explore new technique such as one-bath one-step dyeing or one bath two stage process to nitrile
It is highly significant that cotton blended fabric carries out dyeing.
Content of the invention
The technical problem to be solved is to provide a kind of direct dyess to contaminate the same of nitrile bafta with the dye of positive ion
Bath dyeing method, technical scheme process is simple, it is easy to operate, to equipment no particular/special requirement, set using normal dyeing
For large-scale production can be carried out, have broad application prospects.
A kind of direct dyess of the present invention contaminate the co-bathing dyeing method of nitrile bafta with the dye of positive ion, including：
Prepare dye liquor first：Direct dyess 1-2%o.w.f, Matrii Sulfas Exsiccatus 10%o.w.f, levelling agent paregal O 2g/L, vinegar
Sour 2.5%o.w.f, Sodium Acetate Trihydrate 1%o.w.f, pH value is 4-5；Then dye liquor is warming up to 40 DEG C, adds nitrile bafta, bath raio
For 1:10-15, is warming up to 95-98 DEG C after stirring dyeing 2-10min, continues stirring insulation dyeing 60min, is then cooled to 65-
70 DEG C, after being subsequently added into dispersant and the dye of positive ion, it is warming up to 100 DEG C, stirring insulation dyeing 45-60min, then be cooled to
65-70 DEG C, finally wash fixation treatment post-drying.
Described nitrile bafta is processed before carrying out in pretreatment solution, and wherein pre-treatment temperature is 80-90 DEG C, and the time is
0.5-1h, bath raio is 1:10, pretreatment solution group is divided into：Soda 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 dyess are the red K-BE of stannum profit, one or more of stannum profit Huang K-2G, stannum profit indigo plant K-BE.
Described dispersant is dispersant N；The dye of positive ion is：A Si bend draw Chong Hong GL-N300, A Si bend draw Chong Jinhuang
GL-E200, A Si bend and draw one or more of Chong Lan GRL300.
The consumption of described dispersant is 1-2g/L, and the consumption of the dye of positive ion 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.
Color fixing agent used by described washing fixation treatment is Fixative R -755, and consumption is 1%o.w.f.
The present invention as the dyeing dyestuff of nitrile cotton blended fabric, is realized nitrile cotton and mixes using direct dyess and the dye of positive ion
The one bath two stage process dyeing of yarn fabric.Direct dyess are one of dye class that a veriety is many, quantity is big.Because it is special
The mode being combined with fiber and the variation of self structure become the most commonly used dye class of purposes.Such application
Simplicity, can print and dye to cellulose fibres such as cotton, fiber crops in neutral or weak base are bathed, be widely used in family's dyeing and paper, timber
On Colour Difference.Direct dyess molecular structure is in line style, has flatness.According to direct dyess to temperature, dye-uptake and Sal
The difference of effect, substantially can be divided into level-dyeing property, salt effect, temperature effects three class, molecular structure of dye has the bases such as sulfonic group
Group, water soluble.Dyestuff by fibers adsorption to surface, then constantly spreads to the amorphous region of fiber, with fiber in the solution
Macromole forms the combination of hydrogen bond and Van der Waals force.And the dedicated dye dye of positive ion of acrylic fiber dyeing carries in aqueous
Positive charge, is combined and upper dye fiber with the acidic-group of Third monomer in acrylic fiber.
Blended yarn weaved fabric generally requires multiple dyestuffs in co-bathing dyeing process and uses cooperatively, and washs nitrile blended product in co-bathing dyeing
There is problems with processing：The dye of positive ion with positive lotus property and the direct dyess co-bathing dyeing containing negative charge dispersant hold
It is also easy to produce aggregate and precipitate and causes blend fabric color to spend, the temperature that direct dyess contaminate cotton typically must be at 100 DEG C about, if temperature mistake
Low, direct dyess are insufficient in the upper dye on cotton fiber, and dye-uptake is too low.And the dyeing temperature of acrylic fiber is unsuitable too high, no
Then acrylic fiber, by yellowing and excess shrinkage, leads to feel to be hardened.It is necessary to prevent dyestuff from gathering therefore when using one-bath dyeing
Collection precipitation should take into account the dyeability of the different fiber of two classes and two class different dyes in blending component with highest dyeing temperature.
Consider and improve measure for solving the above problems from the following aspects：
(1) selection of dyestuff.Varieties of Direct Dyes is many, quantity is big, as in the method contaminate cotton dyestuff typically in alkalescence
Under the conditions of income dyeing, and the dye of positive ion, as the dedicated dye of acrylic fibres dyeing, is typically dyeed in acid condition, and
Dye-uptake is typically higher.Due to one bath dye liquor in dye, so should consider it should chooses energy the pH scope of application wider
Dyestuff, dyeed under neutral or solutions of weak acidity.Therefore direct dyess select the red K-BE of stannum profit, stannum profit Huang K-2G, Xi Li
Blue K-BE, the dye of positive ion selects A Si to bend and draws Chong Hong GL-N300, and A Si bends and draws Chong Jinhuang GL-E200, and A Si bends and draws Chong Lan
GRL300 etc..The hardly upper dye acrylic fiber of direct dyess, to acrylic fabric hardly staining, the dye of positive ion may be to cotton
Fabric has staining situation.If therefore do can suitably reduce the dye of positive ion consumption during one-bath and tone-in-tone dyeing product.
(2) application of dyeing assistant.The dye of positive ion belongs to positive dyestuff, and direct dyess belong to negative dyestuff.Yin, yang two
Property dyestuff one bath dye liquor in dye, it will with electrostatic attraction generate precipitate, cause loose colour or mottle.So selecting yin, yang
The key issue of zwitterionic dyestuff dyeing in a bath dye liquor is it is simply that select the dyeing assistant adapting to.Sodium sulfate and nonionic are even
The intermixture of stain paregal O can play good effect.The mechanism of action is as follows：
1. sodium sulfate：First, prevent the mutual assistance between two kinds of dyestuffs from acting on.In dye liquor, the sulfate radical that sodium sulfate ionizes out
Ion (SO4 2-) and the pigment anion (R-SO that ionizes out of straight dyestuff3 -), but sulfate ion quality is less than pigment anion, institute
Just can the cation sites that ionize out of the preferential and dye of positive ion with sulfate ion under the same conditions.In addition, due to from
Sub- effect, the sodium ion that sulfate radical ionizes out can suppress direct dyess to ionize, and thus makes most of dyes of positive ion and directly
Dyestuff is in molecularity, to prevent the interphase interaction of two kinds of yin, yang pigment ions from generating precipitate.Secondly, to sun from
The slow dye effect of sub- dyestuff.The sodium ion that sodium sulfate ionizes out is less than the pigment cation of the dye of positive ion, can preferential and acrylon
Negative group effect on fiber；And sulfate ion is than the negative group on acrylic fiber, can be preferentially with the dye of positive ion
Pigment cation sites.So, within the unit interval, so that the group of most of dyes of positive ion and acrylic fiber is in and carry
The ion populations of form of electrical charges reduce, thus delaying upper dye process, serve certain level dyeing effect.3rd, to direct dyess
Rush dye effect.According to salt effect, sodium ion can also reduce the negative charge on cotton fiber surface, thus reduces direct dyess
Negative charge repulsion and cotton fiber between, enhances intermolecular attraction, promotes the upper dye effect to cotton fiber for the direct dyess.
2. nonionic levelling agent paregal O：Levelling agent paregal O can make the dye of positive ion and direct dyess molecule be in
Suspended state, more efficiently prevents from yin, yang zwitterionic dyestuff and generates precipitate, keep the stability of dye liquor.Meanwhile, also play expansion
Dissipate, be impregnated with, cleaning and improve the effect of fabric feeling.
3. dispersant N：Dispersant N is naphthalene sulfonic acid-formaldehyde condensation product sodium salt, and dye industry is mainly used as dispersion and color lake system
Spreading aids when making, rubber latex stabilizer, and leather helps agent of trampling on.The addition of dispersant N also can make the dye of positive ion with
Anionic dye keeps stable, is conducive to the diffusion to fabric for the dye molecule simultaneously.
Because Sal and levelling agent paregal O and dispersant N have above-mentioned effect in dye liquor, so can complete well
Yin, yang zwitterionic dyestuff is to the dyeing of the single bath process of nitrile cotton mixture fabric it is ensured that the homochromatism of two kinds of fibers.
(3) dye pre-treatment.First carry out kiering process before dyeing, to improve pliability and dyeability.Due to acrylon
Intolerant to highly basic, therefore, processed using soda, penetrating agent under weak basic condition, acrylon effect is more relaxed.Simultaneously
The slurry on nitrile bafta and impurity can be removed, make feel preferably, beneficial to the dyeing process in rear road.
(4) selection of colouring method.Due to the not upper dye acrylic fiber of direct dyess, to acrylic fabric hardly staining, and
Dye of positive ion positively charged in dye liquor, may have staining situation to cotton fiber.So this law is using first dye cotton fiber after stain
The mode of acrylon, adds the dye of positive ion after dye cotton fiber on direct dyess and acrylic fiber is dyeed, reduce staining
The occurrence of；In addition the selection of dyeing temperature is different also according to the difference of fabric.Special according to the structure of direct dyess molecule
Point, the Van der Waals force between direct dyess and cellulosic molecule and Hyarogen-bonding are larger, and dyestuff is in fiber surface is to fiber
The diffusion in portion is slow.In order to improve diffusion rate, typically use higher temperature during dyeing, bafta is under 95 DEG C about
Dyeed, insulation dyeing certain time.And acrylic fiber begins dye temperature preferably below vitrification point, with 70 DEG C about it is
Preferably, because acrylic fabric dye-uptake is higher, therefore programming rate to be controlled, dyeed in the case that boiling is boiled, insulation one timing
Between, dye light color can be in 30min, and color in dye, heavy colour can be in 60～90min.
Dyeing post processing：Fixation post processing is carried out to fabric using cationic fixing agent R-755, washes away loose colour, simultaneously by
There is larger reactivity to dye anion in it, so that the dye molecule on product dyed thereby is increased, hydrophilic group is closed on fabric
Form insoluble dyes salt precipitation.So, can prevent dyestuff from coming off from fabric because of ionizing and hydrolyzing, thus improving dyestuff
Every dyefastness.
Beneficial effect
The present invention adopts direct dyess and the dye of positive ion as the dyeing dyestuff of nitrile cotton blended fabric it is achieved that nitrile cotton
The one bath two stage process dyeing of blend fabric, this method had both solved reactive dye two one-bath two-step process technique process complexity, the energy and water
The big shortcoming of resource energy consumption, also solves that salt dosage in reactive dye one-bath one-step dyeing is higher, and reactive dye utilization rate is not high
Shortcoming, also solves direct dyess/low problem of dye of positive ion one-bath one-step dyeing dyeing product fastness simultaneously；Direct dyess
Low price, replace reactive dye on dye cotton can have preferable economic benefit；
Technical scheme process is simple, is easy to operate, to equipment no particular/special requirement, using conventional dyeing equipment just
Large-scale production can be carried out, have broad application prospects.
The present invention be exactly open pass through screening have concurrently preferable color fastness to washing, the direct dyess of fastness to rubbing and sun from
Sub- dyestuff, more supporting dispersant, the method that good every fastness is had by the preparation of simple dyeing；The present invention provides
Acrylon and cotton fiber co-bathing dyeing method it is achieved that dye acrylon can be met on the dye of positive ion, and can meet and directly contaminate
The environment of cotton is contaminated on material, also achieves the technological innovation that zwitterion one-bath dyeing produces no precipitation simultaneously, this method makes work
The skill time greatly shortens, and improves yield, reduces the energy consumption of water, electricity, vapour, thus reducing cost.Further, since dye
The color time shortens makes fabric feel more preferably, and reduces pilling effect, improves the serviceability of product.
Brief description
Fig. 1 is the process chart of the present invention；Wherein 1. Matrii Sulfas Exsiccatus；2. direct dyess；3. levelling agent paregal O；4. vinegar
Acid-sodium acetate buffer system 5. dispersant N；6. the dye of positive ion.
Specific embodiment
The performance test methods of the present invention：
1. the mensure of K/S value.Sample is built up four layers on SF600 type Computer color testing color matching instrument, tests five different positions
Put, the error of each reading writes down the K/S value of every piece of sample when being less than 0.1；
2. color fastness to washing.With reference to GB/T 3921.3 1 l997《Textile color stability tests color fastness to washing：Test 3》；
3. colour fastness to rubbing.With reference to GB/T 3920-1997《Textile color stability tests colour fastness to rubbing》.
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content of present invention instruction, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment 1
First pre-treatment is carried out to nitrile cotton blended fabric, temperature is 90 DEG C, the time is 1h, bath raio is 1:10, pretreatment liquid
Group is divided into：Soda 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Prepare dye liquor (the red K-BE 2%o.w.f of direct dyess stannum profit, Matrii Sulfas Exsiccatus 10%o.w.f, levelling agent paregal O
2g/L, acetic acid 2.5%o.w.f, Sodium Acetate Trihydrate 1%o.w.f, pH value 4), it is warming up to 40 DEG C, add nitrile cotton blend cloth specimen (bath raio 1:
15), stirring dyeing 5min, is warming up to 98 DEG C with 1 DEG C/min, stirring insulation dyeing 60min, is cooled to 65 DEG C with 2 DEG C/min, plus
Enter the dye of positive ion and dispersant (A Si bends and draws Chong Hong GL-N3001%O.W.F, dispersant N 2g/L), heated up with 1 DEG C/min
To 100 DEG C, stirring insulation dyeing 60min, it is cooled to 65 DEG C with 2 DEG C/min, wash 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 pre-treatment is carried out to nitrile cotton blended fabric, temperature is 90 DEG C, the time is 1h, bath raio is 1:10, pre-treatment is molten
Liquid group is divided into：Soda 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Prepare dye liquor (direct dyess stannum profit Huang K-2G 2%o.w.f, Matrii Sulfas Exsiccatus 10%o.w.f, dispersant paregal O 2g/
L, acetic acid 2.5%o.w.f, Sodium Acetate Trihydrate 1%o.w.f, pH value 4), it is warming up to 40 DEG C, add nitrile cotton blend cloth specimen (bath raio 1:15),
Stirring dyeing 5min, is warming up to 98 DEG C with 1 DEG C/min, stirring insulation dyeing 60min, is cooled to 65 DEG C with 2 DEG C/min, adds sun
Ionic dye and dispersant (A Si bends lashing wire Huang GL-E2001%o.w.f, dispersant N 2g/L), are warming up to 100 with 1 DEG C/min
DEG C, stirring insulation dyeing 60min, it is cooled to 65 DEG C with 2 DEG C/min, wash 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 pre-treatment is carried out to nitrile cotton blended fabric, temperature is 90 DEG C, the time is 1h, bath raio is 1:10, pre-treatment is molten
Liquid group is divided into：Soda 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Prepare dye liquor (direct dyess stannum profit indigo plant K-BE 2%o.w.f, Matrii Sulfas Exsiccatus 10%o.w.f, dispersant paregal O
2g/L, acetic acid 2.5%o.w.f, Sodium Acetate Trihydrate 1%o.w.f, pH value 4), it is warming up to 40 DEG C, add nitrile cotton blend cloth specimen (bath raio 1:
15), stirring dyeing 5min, is warming up to 98 DEG C with 1 DEG C/min, stirring insulation dyeing 60min, is cooled to 65 DEG C with 2 DEG C/min, plus
Enter the dye of positive ion and dispersant (A Si bends and draws Chong Lan GRL3001%o.w.f, dispersant N 2g/L), be warming up to 1 DEG C/min
100 DEG C, stirring insulation dyeing 60min, it is cooled to 65 DEG C with 2 DEG C/min, wash 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 pre-treatment is carried out to nitrile cotton blended fabric, temperature is 90 DEG C, the time is 1h, bath raio is 1:10, pre-treatment is molten
Liquid group is divided into：Soda 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
Prepare dye liquor (the red K-BE 1%o.w.f of direct dyess stannum profit, Matrii Sulfas Exsiccatus 10%o.w.f, dispersant paregal O
2g/L, acetic acid 2.5%o.w.f, Sodium Acetate Trihydrate 1%o.w.f, pH value 4), it is warming up to 40 DEG C, add nitrile cotton blend cloth specimen (bath raio 1:
15), stirring dyeing 5min, is warming up to 98 DEG C with 1 DEG C/min, stirring insulation dyeing 60min, is cooled to 65 DEG C with 2 DEG C/min, plus
Enter the dye of positive ion and dispersant (A Si bends and draws Chong Hong GL-N3000.5%O.W.F, dispersant N 2g/L), with 1 DEG C/min liter
To 100 DEG C, 60min is dyeed in stirring insulation to temperature, is cooled to 65 DEG C with 2 DEG C/min, washing fixation (Fixative R -7551%owf, bath
Ratio 1：10,40 DEG C of process 20min), dry, test performance (the results are shown in Table 4).
Table 4
(above color fastness is change color fastness)
The present invention adopts the wider direct dyess of pH range and the dye of positive ion to be used for nitrile cotton blended fabric one and bathe a step
Method dyes, and the apparent shade depth value (K/S value) of dyed fabric is higher, and the washable and crock fastness of dyed fabric is all more than 4 grades.
Claims (7)
1. a kind of direct dyess and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, including：
Prepare dye liquor first：Direct dyess 1-2%o.w.f, Matrii Sulfas Exsiccatus 10%o.w.f, levelling agent paregal O 2g/L, acetic acid
2.5%o.w.f, Sodium Acetate Trihydrate 1%o.w.f, pH value is 4-5；Then dye liquor is warming up to 40 DEG C, adds nitrile bafta, bath raio is
1:10-15, is warming up to 95-98 DEG C after stirring dyeing 2-10min, continues stirring insulation dyeing 60min, is then cooled to 65-70
DEG C, after being subsequently added into dispersant and the dye of positive ion, it is warming up to 100 DEG C, stirring insulation dyeing 45-60min, then it is cooled to 65-
70 DEG C, finally wash fixation treatment post-drying；Wherein direct dyess be the stannum red K-BE of profit, in stannum profit Huang K-2G, stannum profit indigo plant K-BE
One or more；The dye of positive ion is：A Si bend draw Chong Hong GL-N300, A Si bend draw Chong Jinhuang GL-E200, A Si bend draw
One or more of Chong Lan GRL300.
2. a kind of direct dyess according to claim 1 and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, its
It is characterised by：Described nitrile bafta is processed before carrying out in pretreatment solution, and wherein pre-treatment temperature is 80-90 DEG C, and the time is
0.5-1h, bath raio is 1:10, pretreatment solution group is divided into：Soda 3g/L, sodium hydrosulfite 0.5g/L, JFC 2g/L, soap powder 2g/L.
3. a kind of direct dyess according to claim 1 and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, its
It is characterised by：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 dyess according to claim 1 and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, its
It is characterised by：Described dispersant is dispersant N.
5. a kind of direct dyess according to claim 1 and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, its
It is characterised by：The consumption of described dispersant is 1-2g/L, and the consumption of the dye of positive ion is 1%-0.5%o.w.f.
6. a kind of direct dyess according to claim 1 and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, its
It is characterised by：The temperature of described washing fixation treatment is 40 DEG C, and the time is 20min, and bath raio is 1:10.
7. a kind of direct dyess according to claim 1 and the dye of positive ion contaminate the co-bathing dyeing method of nitrile bafta, its
It is characterised by：Color fixing agent used by described washing fixation treatment is Fixative R -755, and consumption is 1%o.w.f.
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| 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 |
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| 腈/棉针织绒布的染整工艺研讨;程龙瑶;《针织工业》;19961231(第6期);第14-18页 * |
| 腈棉混纺织物染整工艺探讨;沈玉琴等;《针织工业》;20001231(第6期);第43-44页第2-5节 * |
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