CN104710809B - A kind of bright yellow disperse dyes - Google Patents
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- CN104710809B CN104710809B CN201310688997.XA CN201310688997A CN104710809B CN 104710809 B CN104710809 B CN 104710809B CN 201310688997 A CN201310688997 A CN 201310688997A CN 104710809 B CN104710809 B CN 104710809B
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Abstract
The invention discloses bright yellow disperse dyes.The bright yellow disperse dyes are the compound as shown in formula B, wherein, R3For C1‑C4Straight or branched alkyl, OCH3Or OC2H5, R4And R5Alone for H, halogen or nitro, but be asynchronously H or nitro, R6And R7Alone for methyl, ethyl, C2H4CN、‑C2H4OCH3、‑C2H4OC2H5Or benzyl.Bright yellow is presented in the disperse dyes of the present invention, it can be used as monochrome to use, it can also be applied in combination with the alkaline-proof disperse dyes of other colors, it has excellent alkali resistance and resistance to hydrogen peroxide oxidation stability, this feature makes it can be applied not only to the processing of the general basic printing and dyeing of Polyester Fibers, it can also be applied to concise one-pass bath method for dyeing technique or bleaching and dyeing single bath process technique and scattered active Graft versus host disease technique, and environmental requirement can be met.
Description
Technical field
The present invention relates to a kind of bright yellow disperse dyes.
Background technology
Polyester fiber and its blend fabric have important application in current high-grade fabric, and its applicable dyestuff is scattered
Dyestuff.Disperse dyes are applied to during the dyeing of polyester fiber product be usually to dye using acid dye bath, but acid dyeing is easy
The disadvantages such as specking, color dot, dyeing flower of the generation caused by oligomer stains.Disperse dyes basic dyeing technique can effectively remove dyeing
During the oligomer that produces, be expected to shorten the technological process of production, with low consumption, efficiently, energy-conservation and it is time saving the characteristics of.In recent years
Come, the pressure of energy-saving and emission-reduction and cost promotes printing and dyeing enterprise and color additive manufacturer to make joint efforts, and develops a variety of alkali resistances point
Dissipate dyestuff and its supporting dyeing assistant, the alkaline concise one-pass bath method for dyeing technique of new development also on basic dyeing Process ba- sis.
Alkaline-resisting serial disperse dyes in the market, applicable pH value is generally 4-9, and portioned product is 4- up to pH value
10 or 4-11 scope.It is clear that for concise one-pass bath method for dyeing technique, the alkali resistance and oxytolerant of part disperse dyes
The property changed still is apparent not enough, and is especially the absence of a kind of alkali resistance and the good bright yellow disperse dyes of oxidative resistance.
Patent CN102250485 discloses a kind of Yellow disperse dye of acid-alkaline dyeing, can pH=4-14 dye bath
Middle dyeing, but do not refer to its resistance to oxidation stability.This dye shade is that feux rouges is yellow, and because of material purity and is reacted into stroke
The reason for spending, the dyestuff still has the exceeded risk of carcinogenic substance aromatic amine.
The content of the invention
Technical problem solved by the invention is stable with resistance to oxidation in order to overcome existing disperse dyes alkali resistance poor
Property difference defect there is provided a kind of bright yellow disperse dyes of alkali dyeing.The Yellow disperse dye of the present invention presents light yellow
Color, can be used as monochrome and uses, and can also be applied in combination with the alkaline-proof disperse dyes of other colors, it have excellent alkali resistance and
Resistance to hydrogen peroxide oxidation stability, this feature makes it can be applied not only to the processing of the general basic printing and dyeing of Polyester Fibers,
It can be applied to concise one-pass bath method for dyeing technique or bleaching and dyeing single bath process technique and scattered active Graft versus host disease technique, and can meet
Environmental requirement.
The present invention is to solve above-mentioned technical problem by the following technical programs：
The invention provides a kind of bright yellow disperse dyes A of alkali dyeing,
Wherein, R1For-H ,-CH3、-C2H5、-OCH3Or-OC2H5, R2For C1-C4Straight or branched alkyl or benzyl.
Wherein, R1Preferably-H or-CH3, it is more preferably-H.
Wherein, R2Preferably n-propyl, isopropyl, normal-butyl, isobutyl group, the tert-butyl group or benzyl, are more preferably positive third
Base.
In the present invention, the compound of the bright yellow disperse dyes A of described alkali dyeing preferably as shown in formula A ' or A ",
Wherein, the definition of each substituent is same as above.
In the present invention, the bright yellow disperse dyes A of described alkali dyeing is further preferred as shown in formula A1, A2 or A3
Compound,
Present invention also offers the bright yellow disperse dyes A of described alkali dyeing preparation method, it includes following
Step：By compound I and compound X-R2Carry out substitution reaction, you can；
Wherein, R1For-H ,-CH3、-C2H5、-OCH3Or-OC2H5, R2For C1-C4Straight or branched alkyl or benzyl, X are halogen
Element.
Wherein, described bright yellow disperse dyes A preparation method preferably includes following step：In water, in hydroxide
In the presence of sodium and TBAB, compound I and compound X-R2Carry out substitution reaction, you can.
Wherein, described compound I and described compound X-R2Mol ratio be preferably（1:1）~（1:1.5）.
Wherein, the mol ratio of described NaOH and described compound I is preferably（1:1）~（1.6:1）.
Wherein, the mol ratio of described TBAB and described compound I is preferably（0.002:1）~
（0.05:1）.
Wherein, the temperature of described substitution reaction is preferably 65~100 DEG C.
Wherein, the process of described acquirement reaction can be monitored by HPLC or GC, be made when typically being disappeared with compound I
For the terminal of reaction.The time of described substitution reaction is preferably 3~15h.
In bright yellow disperse dyes A preparation method, described compound I can be made by following methods：In nitrous acid
In the presence of sodium, compound II and compound III carries out diazo coupling reaction, you can；
Described compound I preparation method preferably includes following step：In hydrochloric acid, in the presence of natrium nitrosum,
Diazo-reaction occurs for compound II, then in the presence of sodium carbonate and NaOH, coupling reaction is carried out with compound III,
.
Wherein, the mol ratio of described natrium nitrosum and described compound II is preferably（1.01:1）~（1.3:1）.
Described natrium nitrosum is preferably fed intake in the form of sodium nitrite solution, the mass percent of described sodium nitrite solution compared with
It is 20%~30% goodly.
Wherein, the mass percent concentration of described hydrochloric acid is preferably 30%~36%, described hydrochloric acid and described change
Compound II mol ratio is preferably（2.5:1）~（4.5:1）.
Wherein, the temperature of described diazo-reaction is preferably 0~5 DEG C.The time of described diazo-reaction is preferable
Ground is 3~5h.
Wherein, described compound III and described compound II mol ratio are preferably（1.01:1）~（1.15:
1）.
Wherein, the mol ratio of described sodium carbonate and described compound II is preferably（1:1）~（1.2:1）.
Wherein, the mol ratio of described NaOH and described compound II is preferably（1.5:1）~（2.0:1）.
Wherein, the temperature of described coupling reaction is preferably 0~10 DEG C.The time of described coupling reaction is preferably
3~5h.
Present invention also offers the bright yellow disperse dyes A of described alkali dyeing in dyeing polyester fibre material or print
Application in spending.
Wherein, the technique of described dyeing is preferably concise one-pass bath method for dyeing technique or bleachinges and dyeing single bath process technique.It is described
The technique of stamp be preferably scattered active Graft versus host disease technique.
The invention provides bright yellow disperse dyes B,
Wherein, R3For C1-C4Straight or branched alkyl ,-OCH3Or-OC2H5, R4And R5Alone for H, halogen or nitro, but
It is asynchronously-H or nitro, R6And R7Alone for methyl, ethyl ,-C2H4CN、-C2H4OCH3、-C2H4OC2H5Or benzyl.
Wherein, R3Preferably methyl or ethyl, are more preferably methyl.
Wherein, R4Preferably-H ,-Cl ,-Br or nitro, are more preferably-Br.
Wherein, R5Preferably-H ,-Cl ,-Br or nitro, are more preferably-Br.
Wherein, R6Preferably-C2H4CN、-C2H4OCH3Or benzyl, it is more preferably-C2H4CN or benzyl.
Wherein, R7Preferably-C2H4CN、-C2H4OCH3Or benzyl, it is more preferably-C2H4CN or benzyl.
In the present invention, the compound of described bright yellow disperse dyes B preferably as shown in formula B ', B " or B " ',
Wherein, the definition of each substituent is same as above.
In the present invention, the described further preferred chemical combination as shown in formula B1, B2, B3, B4 or B5 of bright yellow disperse dyes B
Thing,
Present invention also offers described bright yellow disperse dyes B preparation method, it comprises the steps：In nitrous acid
In the presence of sodium, compound IV and compound V carries out diazo coupling reaction, you can；
Wherein, R3For C1-C4Straight or branched alkyl ,-OCH3Or-OC2H5, R4And R5Alone for H, halogen or nitro, but
It is asynchronously-H or nitro, R6And R7Alone for methyl, ethyl ,-C2H4CN、-C2H4OCH3、-C2H4OC2H5Or benzyl.
Described bright yellow disperse dyes B preparation method preferably includes following step：In hydrochloric acid, in natrium nitrosum
Under effect, diazo-reaction occurs for compound IV, then in the presence of the concentrated sulfuric acid, coupling reaction is carried out with compound V, you can.
Wherein, the mol ratio of described natrium nitrosum and described compound IV is preferably（1.01:1）~（1.15:
1）.Described natrium nitrosum is preferably fed intake in the form of sodium nitrite solution, the quality percentage of described sodium nitrite solution
Than being preferably 20%~30%.
Wherein, the mass percent concentration of described hydrochloric acid is preferably 30%~36%, described hydrochloric acid and described change
Compound IV mol ratio is preferably（2.5:1）~（4.5:1）.
Wherein, the temperature of described diazo-reaction is preferably 0~5 DEG C.The time of described diazo-reaction is preferable
Ground is 3~5h.
Wherein, described compound IV and described compound V mol ratio are preferably（1.01:1）~（1.15:1）.
Wherein, the mass ratio of the described concentrated sulfuric acid and described compound IV is preferably（0.3:1）~（0.6:1）.Institute
The mass percent concentration for the concentrated sulfuric acid stated is preferably 93%~98%.
Wherein, the temperature of described coupling reaction is preferably 0~10 DEG C.The time of described coupling reaction is preferably
3~5h.
Present invention also offers applications of the described bright yellow disperse dyes B in dyeing polyester fibre material or stamp.
Wherein, the technique of described dyeing is preferably concise one-pass bath method for dyeing technique or bleachinges and dyeing single bath process technique.It is described
The technique of stamp be preferably scattered active Graft versus host disease technique.
The invention provides disperse dyes C,
Wherein, R1For-H ,-CH3、-C2H5、-OCH3Or-OC2H5, R2For C1-C4Straight or branched alkyl or benzyl, R8For
C1-C4Straight or branched alkyl, nitro ,-NHCOCH3Or-NHCOC2H5, R9And R10Alone be-H, halogen or nitro.
Wherein, R1Preferably-H or-CH3, it is more preferably-H.
Wherein, R2Preferably propyl group, butyl or benzyl, are more preferably propyl group.
Wherein, R8Preferably methyl, ethyl, nitro or-NHCOCH3, it is more preferably nitro or-NHCOCH3。
Wherein, R9Preferably-H ,-Br or nitro, are more preferably-H or-Br.
Wherein, R10Preferably-H ,-Br or nitro, are more preferably-H or-Br.
In the present invention, described disperse dyes C is preferably such as formula C ', C ", C " ' or C " " shown in compound,
Wherein, the definition of each substituent is same as above.
In the present invention, the described further preferred compounds as shown in formula C1, C2, C3, C4, C5 or C6 of disperse dyes C,
Present invention also offers described disperse dyes C preparation method, it comprises the steps：By compound VI with changing
Compound X-R2Carry out substitution reaction, you can；
Wherein, R1For-H ,-CH3、-C2H5、-OCH3Or-OC2H5, R2For C1-C4Straight or branched alkyl or benzyl, R8For
C1-C4Straight or branched alkyl, nitro ,-NHCOCH3Or-NHCOC2H5, R9And R10Alone be-H, halogen or nitro, X is halogen
Element.
Wherein, described disperse dyes C preparation method preferably includes following step：In water, in NaOH and four
In the presence of butylammonium bromide, compound VI and compound X-R2Carry out substitution reaction, you can.
Wherein, described compound VI and described compound X-R2Mol ratio be preferably（1:1）~（1:1.5）.
Wherein, the mol ratio of described NaOH and described compound VI is preferably（1:1）~（1.6:1）.
Wherein, the mol ratio of described TBAB and described compound VI is preferably（0.002:1）~
（0.05:1）.
Wherein, the temperature of described substitution reaction is preferably 65~100 DEG C.
Wherein, the process of described acquirement reaction can be monitored by HPLC or GC, when typically being disappeared with compound VI
It is used as the terminal of reaction.The time of described substitution reaction is preferably 3~15h.
In disperse dyes C preparation method, described compound VI can be made by following methods：In the work of natrium nitrosum
Under, compound VII and compound III carries out diazo coupling reaction, you can；
Wherein, the definition of each substituent is same as above.
Described compound VI preparation method preferably includes following step：In hydrochloric acid, in the presence of natrium nitrosum,
Diazo-reaction occurs for compound VII, then in the presence of sodium carbonate and NaOH, coupling reaction is carried out with compound III,
.
Wherein, the mol ratio of described natrium nitrosum and described compound VII is preferably（1.01:1）~（1.3:
1）.Described natrium nitrosum is preferably fed intake in the form of sodium nitrite solution, the quality percentage of described sodium nitrite solution
Than being preferably 20%~30%.
Wherein, the mass percent concentration of described hydrochloric acid is preferably 30%~36%, described hydrochloric acid and described change
Compound VII mol ratio is preferably（2.5:1）~（4.5:1）.
Wherein, the temperature of described diazo-reaction is preferably 0~5 DEG C.The time of described diazo-reaction is preferable
Ground is 3~5h.
Wherein, described compound III and described compound VII mol ratio are preferably（1.01:1）~（1.15:
1）.
Wherein, the mol ratio of described sodium carbonate and described compound VII is preferably（1:1）~（1.2:1）.
Wherein, the mol ratio of described NaOH and described compound VII is preferably（1.5:1）~（2.0:1）.
Wherein, the temperature of described coupling reaction is preferably 0~10 DEG C.The time of described coupling reaction is preferably
3~5h.
Present invention also offers applications of the described disperse dyes C in dyeing polyester fibre material or stamp.
Wherein, the technique of described dyeing is preferably concise one-pass bath method for dyeing technique or bleachinges and dyeing single bath process technique.It is described
The technique of stamp be preferably scattered active Graft versus host disease technique.
Present invention also offers a kind of admixture of disperse dyes, it includes following components by percentage to the quality：It is scattered
Dyestuff A0~100%, disperse dyes B0~100% and disperse dyes C0~100%, wherein disperse dyes A, disperse dyes B and scattered
It is 0 when dyestuff C content is different.
Wherein, described disperse dyes A content is preferably 5~90%, is more preferably 10~80%.
Wherein, described disperse dyes B content is preferably 5~90%, is more preferably 10~80%.
Wherein, described disperse dyes C content is preferably 5~90%, is more preferably 10~80%.
It is preferred that described admixture of disperse dyes can also include auxiliary agent, described auxiliary agent can be the scattered dye in this area
Conventional use of various auxiliary agents in material, are preferably comprised naphthalene sulfonic acid-formaldehyde condensation product, lignosulfonates and alkyl naphthalene sulfonic acid first
One or more in aldehyde condensate, more preferably including condensation compound of methyl naphthalene sulfonic acid and formaldehyde（That is Dispersant MF）And/or lignin
Sodium sulfonate.
The mass ratio of disperse dyes is preferably in described auxiliary agent and mixture（0.6~5）：1.
Present invention also offers the preparation method of above-mentioned admixture of disperse dyes, it is any of following methods：
Method one：After all components are mixed with water by mass percentage, grinding distribution, spray drying, you can；
Method two：After each component is mixed with water respectively, grinding distribution, spray drying, then mix by mass percentage, i.e.,
Can.
When containing auxiliary agent in described admixture of disperse dyes, the preparation method of described admixture of disperse dyes is preferred
Any of following methods：
Method one：After all components are mixed with auxiliary agent and water by mass percentage, grinding distribution, spray drying, you can；
Method two：After each component is mixed with auxiliary agent and water respectively, grinding distribution, spray drying, then by mass percentage
Mixing, you can.
Wherein, described grinding distribution is preferably carried out in grinder or sand mill.
Present invention also offers application of the above-mentioned admixture of disperse dyes in dyeing polyester fibre material or stamp.
Wherein, the technique of described dyeing is preferably concise one-pass bath method for dyeing technique or bleachinges and dyeing single bath process technique.It is described
The technique of stamp be preferably scattered active Graft versus host disease technique.
On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, and produce each preferable reality of the present invention
Example.
Agents useful for same and raw material of the present invention are commercially available.
The present invention positive effect be：Dyestuff of the present invention has extremely strong alkali stability and resistance to stabilized hydrogen peroxide
Property, this feature is concise one-pass bath method for dyeing technique or bleachinges and dyeing single bath process technique, and disperses answering for active Graft versus host disease technique
With there is provided feasibility；And dyestuff meets environmental protection and ecological requirements, with preferable comprehensive dyefastness.
Embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to described reality
Apply among a scope.The experimental method of unreceipted actual conditions in the following example, conventionally and condition, or according to business
Product specification is selected.
Compound A1 preparation：（1）150 grams of water, N- (2,4- dinitros) phenyl -1 are added in 250mL there-necked flasks,
13.7 grams of 3- diaminobenzenes, add 20 grams of the hydrochloric acid that mass percent concentration is 36%, continue after room temperature uniform stirring half an hour
Stirring 1.5 hours, it is on the rocks to be cooled to 0-5 DEG C, 18.6 grams of the sodium nitrite solution that mass fraction is 20% is added dropwise, then proceedes to
0-5 DEG C react 3 hours, add 0.5 gram of sulfamic acid, with starch potassium iodide paper test it is colourless after, that is, obtain diazol and treat idol
Close.
（2）In 1000mL beakers add 200 grams of water, mass fraction for 30% 7 grams of NaOH, 8.7 grams of sodium carbonate,
4.8 grams of phenol, after stirring half is small, is maintained at 0-10 DEG C of dropwise addition step（1）Obtained diazol, it is that 8-9 reactions 3 are small to keep pH value
When, it is warming up to 65-70 DEG C and is incubated 2 hours, filters to obtain 18 grams of intermediate product filter cake.
（3）In 250mL there-necked flasks, 80 grams of water, above-mentioned intermediate product filter cake are added, 2 grams are added after stirring
NaOH, 0.5 gram of TBAB, are warming up to 70-85 DEG C of 6.15 grams of N-Propyl Bromide of dropwise addition, insulation reaction to intermediate product disappears
Lose, cooling, filtering is washed to neutrality, dry, obtain 18.5 grams of dyestuff dry product.
By above-mentioned same synthetic method, you can obtain dyestuff A2 and A3.
The preparation of compound B-11：（1）100 grams of water, 2- nitro -4- MEAs 8.3 are added in 250mL there-necked flasks
Gram, 20 grams of the hydrochloric acid that mass percent concentration is 36%, be stirred at room temperature 0.5 hour, it is on the rocks to be cooled to 0-5 DEG C, quality point is added dropwise
Number is 20% 17.8 grams of sodium nitrite solution, then proceedes to react at 0-5 DEG C 2 hours, then adds 0.5 gram of sulfamic acid,
With starch potassium iodide paper test it is colourless after, that is, obtain diazol and wait to be coupled.
（2）200 grams of water, 6 grams of the concentrated sulfuric acid, N- cyanoethyl-N- methoxy ethyls aniline 10.5 are added in 1000mL beakers
Gram, after stirring and dissolving, it is maintained at 0-5 DEG C of dropwise addition step（1）Obtained diazol, and reacted 3 hours in this temperature, heating
2 hours are incubated to 65-70 DEG C, intermediate product filter cake is filtered to obtain, 18 grams of product product filter cake of giving money as a gift.
By above-mentioned same synthetic method, you can obtain dyestuff B2, B3, B4 and B5.
Compound C1 preparation：（1）100 grams of water, 6.9 grams of 4- nitroanilines, quality hundred are added in 250mL there-necked flasks
Point specific concentration is 36% 20 grams of hydrochloric acid, is heated to 60 DEG C and stirs 0.5 hour, is down to and on the rocks after room temperature is cooled to 0-5 DEG C, dropwise addition
Mass fraction is 20% 17.8 grams of sodium nitrite solution, then proceedes to react at 0-5 DEG C 2 hours, then adds 0.5 gram of amino
Sulfonic acid, with starch potassium iodide paper test it is colourless after, that is, obtain diazol and wait to be coupled.
（2）In 1000mL beakers add 200 grams of water, mass fraction for 30% 7 grams of NaOH, 8.7 grams of sodium carbonate,
4.8 grams of phenol, after stirring half an hour, is maintained at 0-10 DEG C of dropwise addition step（1）Obtained diazol, it is 8-9 reactions 3 to keep pH value
Hour, it is warming up to 65-70 DEG C and is incubated 2 hours, filters to obtain 11 grams of intermediate product filter cake.
（3）In 250mL there-necked flasks, 80 grams of water, above-mentioned intermediate product filter cake are added, 2 grams are added after stirring
NaOH, 0.5 gram of TBAB, are warming up to 80-95 DEG C of 6.8 grams of benzyl chloride of dropwise addition, insulation reaction to intermediate product disappears
Lose, cooling, filtering is washed to neutrality, dry, obtain 14 grams of dyestuff dry product.
By above-mentioned same synthetic method, you can obtain dyestuff C2, C3, C4, C5 and C6.
Embodiment 1
By 10 grams of former dyestuff shown in formula A1,20 grams of former dyestuff shown in formula B4,20 grams of former dyestuff shown in formula C3, scattered
MF60 grams of agent, 15 grams of sodium lignin sulfonate, 153 gram one of water reinstate sand mill and carry out decentralized processing, then are spray-dried, and produce this hair
Bright bright yellow dye mixture.
Embodiment 2~30
According to the preparation method of embodiment 1, the data as shown in table 1 below are ground the compound shown in formula A, B, C
Mill is scattered, spray drying.
Table 1
Effect example 1
Disperse dyes made from respectively taking 0.5 gram of embodiment 1-30, which are dispersed in 500 milliliters of water, turns into dye suspensions, draws
25 milliliters of suspension are mixed with 25 milliliters of water, are adjusted Value in Dyeing Process as 4 using acetic acid, are warming up to 60 DEG C, are respectively put into 2.5 grams of polyester
Fiber cloth, was warming up to 130 DEG C in 30 minutes, was incubated 50 minutes, cooling, fully washing, drying.
By above-mentioned colouring method, by the progress pair in the dye bath of different pH value respectively of disperse dyes made from embodiment 1-30
Than dyeing.Value in Dyeing Process is respectively 5.5,9,11,12,13（When pH value is 14, polyester fiber cloth is damaged after high-temperature pressure dyeing
Seriously, pH value therefore is not chosen to be tested for 14）, and it is each added with 6g/L30% hydrogen peroxide.
Above-mentioned dyeing cloth specimen is tested respectively by GB/T3921-2008, GB/T3920-2008, GB/T5718-1997 standard
Its water-fastness, rub resistance and sub-limation fastness.Test result is shown in Table 2, wherein using Value in Dyeing Process 4 and to be not added with hydrogen peroxide
Dyeing cloth specimen is used as standard.
Comparative example
The disperse dyes of preparation example 2 described in 0.5 gram of CN102250485A are taken, its alkali resistance is tested and resistance to by ibid method
Oxidation susceptibility, and water-fastness, rub resistance and sub-limation fastness.As a result it is also shown in Table 2 below.
Table 2
（Numerical value in upper table in wash durability, crocking resistance and sub-limation fastness is series）
As can be seen from the above table, disperse dyes of the invention can be used in the basic conditions, and resistance to hydrogen peroxide oxidation
Stability also very well, its wash durability, crocking resistance and sub-limation fastness are preferable, and the dyestuff of comparative example is strong
Resistance to oxidation stability under alkalescence condition is not ideal enough, is worse than the disperse dyes of the present invention.
Effect example 2
Scattered routine printing technology：Disperse dyes made from 1.5 grams of embodiment 1-30 are respectively taken, respectively with 1 gram of reservehao S
（M-nitrobenzene sulfonic acid）, 2 grams of urea, 70 gram mass fractions be 8% sodium alginate original paste mixing, add water to total amount for 100 grams,
And pH value is adjusted to as 5-6 using proper amount of acetic acid, after stirring, to polyester cotton（T65/C35）Carry out stamp, drying
After 170 DEG C of decatizes 7 minutes, washing was soaped, and is dried.
Scattered activity Graft versus host disease technique：Disperse dyes made from 1.5 grams of embodiment 1-30 are respectively taken, respectively with 2 grams of carbonic acid
Hydrogen sodium, 1 gram of reservehao S（M-nitrobenzene sulfonic acid）, 2 grams of urea, 70 gram mass fractions be 8% sodium alginate original paste mixing, add water
It it is 100 grams to total amount, after stirring, to polyester cotton（T65/C35）Stamp is carried out, is dried after 102 DEG C of vapour
Steam 8 minutes, then baked 2 minutes in 190 DEG C, wash, soap, dry.
Using the cloth specimen obtained by conventional printing technology as standard, disperse dyes Graft versus host disease cloth made from testing example 1-30
The coloured light and intensity of sample.Test its fastness to rubbing respectively by GB/T3920-2008, the results are shown in Table 3.
Table 3
As can be seen here, disperse dyes of the invention are because with excellent alkali resistance and resistance to oxidation stability, using scattered work
Property Graft versus host disease technique the effect consistent with conventional printing technology is can reach in coloured light, intensity and fastness.
Claims (1)
1. a kind of bright yellow disperse dyes B,
Described bright yellow disperse dyes B is the compound as shown in formula B1, B4 or B5,
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| CN102660146A (en) * | 2012-04-28 | 2012-09-12 | 浙江万丰化工有限公司 | Oxidation-resistant disperse dye composition and preparation and application thereof |
| CN102964876A (en) * | 2012-12-20 | 2013-03-13 | 江苏之江化工有限公司 | Dispersed black azo dye mixture |
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