CN101545218A

CN101545218A - Accelerant of reactive dye and accelerating method using same

Info

Publication number: CN101545218A
Application number: CN200910301870A
Authority: CN
Inventors: 石振东
Original assignee: Wuyi University
Current assignee: Wuyi University
Priority date: 2009-04-27
Filing date: 2009-04-27
Publication date: 2009-09-30

Abstract

The invention discloses an accelerant of a reactive dye with the components of organic acid and alkali and an accelerating method using the accelerant. The method comprises following steps: scouring and bleaching the cloth to be dyed, adding dyeing water according to bath ratio of 1:15, then feeding fatty alcohol polyoxyethylene ether, adding alkali after 5 mins, adding organic acid, cloth, finally reactive dye, keeping shock for 20-40 mins at 30-60 DEG C, holding for 30-90 DEG C; cooling the cloth and soaping to get the finished products. The invention uses the organic acid and alkali reaction to get organic salt for replacing the common salt in order to accelerate the reactive dye, does not change the traditional reactive dye dyeing equipment and the dyeing technical parameters of various reactive dyes, decreases the dosage of the accelerant so as to promote the environment-friendly effect, reduce the production costs and realize the environment-friendly low salt reactive dyeing.

Description

A kind of accelerant of REACTIVE DYES and use the short dyeing method of this accelerant

Technical field

The present invention relates to a kind of accelerant of REACTIVE DYES and use the short dyeing method of this accelerant.

Background technology

Reactive dyestuff molecule is simple in structure, lovely luster, and chromatogram is complete, and is easy to use, with low cost, and fastness is good, and has high security, can replace the forbidding dyestuff.Yet, in traditional dyeing, in order to improve dye fixing rate and degree of fixation, need to add that a large amount of inorganic salts are short dyes, different according to the structure of dyestuff and DYED FABRICS character, the amount ranges of salt is about 30～150g/L.The adding of a large amount of neutral salt makes dyeing waste water cause serious environmental to pollute.The discharge of wastewater of high salinity has directly changed the water quality in rivers and lakes, has destroyed ecological environment.The high osmosis of salinity will cause the soil property salinization of soil around river, the lake, seriously cause the soil forfeiture and cultivate ability.Given this, external many companies are devoted to development of new low-salt active dyestuff, the Cibacron LS type REACTIVE DYES of Ciba company, and the inorganic salts consumption is 1/2 to 1/3 of a general double-active radical dye, but large-scale application low-salt active dyestuff also has very long road.Although replacing inorganic salts with organic reagent is present research focuses, as the used additives modified cotton fabric, the salt-free dyeing of research REACTIVE DYES is because problems such as security and technology still are in research state.There is the researcher to study organic salt EDTA abroad and does accelerant, effect is preferably arranged, but the difficult control of dyeing.External report dyes as accelerant with natrium citricum, has the preferable short effect of dying, and is biodegradable, environmentally friendly, but it costs an arm and a leg, and is not suitable for industrial production.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of accelerant of REACTIVE DYES, helps protecting environment and reduces production costs the dyeing of realization environmental protection low-salt active; For this reason, the present invention also will provide a kind of short dyeing method of this accelerant of application.

In order to solve the problems of the technologies described above, the accelerant of a kind of REACTIVE DYES of the present invention, the component of described accelerant is organic bronsted lowry acids and bases bronsted lowry.

As improvement of the technical scheme, described organic acid is the one or more kinds of combinations in citric acid, tartaric acid, malic acid, pyrophosphoric acid, terephthalic acid (TPA), benzoic acid, oxalic acid, formic acid, the acetate, and described alkali is the one or more kinds of combinations in NaOH, potassium hydroxide, sodium carbonate, sodium bicarbonate, the ammoniacal liquor.

As further improvement in the technical proposal, the content of described organic bronsted lowry acids and bases bronsted lowry be respectively both fully in and desired content 70～150%.

A kind of short dyeing method of this accelerant of application, described short dyeing method may further comprise the steps:

A. cloth that will be to be dyeed is scouringed and bleaching;

B. according to the cloth quality of step a gained, add the dyeing water earlier, add peregal again by bath raio 1:15, add alkali after 5 minutes, add organic acid then, then add cloth, add REACTIVE DYES at last, 30～60 ℃ of temperature controls keep concussion 20～40 minutes;

C. dye liquor and the cloth with step b gained is incubated 30～90 ℃;

D. with the cooling of the cloth of step c gained, soaping obtains finished product.

The invention has the beneficial effects as follows: the present invention adopts organic acid and alkali reaction to generate organic salt and urgees to dye reactive dyeing to replace ordinary salt, need not to transform conventional reactive dyeing equipment, and the staining technique parameter of various REACTIVE DYES need not to change, help reducing the consumption of accelerant, thereby promote environment protecting and reduce production costs the dyeing of realization environmental protection low-salt active.

The specific embodiment

The accelerant of a kind of REACTIVE DYES of the present invention, the component that it is characterized in that described accelerant is organic bronsted lowry acids and bases bronsted lowry.Described organic acid is the one or more kinds of combinations in citric acid, tartaric acid, malic acid, pyrophosphoric acid, terephthalic acid (TPA), benzoic acid, oxalic acid, formic acid, the acetate, and described alkali is the one or more kinds of combinations in NaOH, potassium hydroxide, sodium carbonate, sodium bicarbonate, the ammoniacal liquor.

The content of described organic bronsted lowry acids and bases bronsted lowry be respectively both fully in and desired content 70～150%.Wherein, Zui Jia alkali content be with organic acid fully in and desired content 100～120%.

The present invention adopts organic acid and alkali reaction to generate organic salt and urgees to dye reactive dyeing to replace ordinary salt, need not to transform conventional reactive dyeing equipment, and the staining technique parameter of various REACTIVE DYES need not to change, help reducing the consumption of accelerant, thereby promote environment protecting and reduce production costs the dyeing of realization environmental protection low-salt active.

A. cloth that will be to be dyeed is scouringed and bleaching;

C. dye liquor and the cloth with step b gained is incubated 30～90 ℃;

Organic acid described in the step b is the one or more kinds of combinations in citric acid, tartaric acid, malic acid, pyrophosphoric acid, terephthalic acid (TPA), benzoic acid, oxalic acid, formic acid, the acetate, and described alkali is the one or more kinds of combinations in NaOH, potassium hydroxide, sodium carbonate, sodium bicarbonate, the ammoniacal liquor.

Several embodiment below are provided:

Embodiment 1:

Woven or knitting cotton after scouringing and bleaching is some, reactive yellow KE-4R concentration 1% (owf, cloth heavy 1%).Peregal 1g/L, citric acid 50g/L, NaOH 31g/L, sodium phosphate 10g/L, bath raio 1:15.Under 30 ℃, add some dyeing waters earlier by bath raio, add peregal again, add NaOH after 5 minutes, then add citric acid, go into cloth then, add dyestuff again, be warming up to 85 ℃ after 10 minutes, keep vibration 20 minutes, add sodium phosphate again, kept 30 minutes, cooling is soaped.

Embodiment 2:

Woven or knitting cotton after scouringing and bleaching is some, the blue concentration 1% of FN-R (owf, cloth heavy 1%).Peregal 1g/L, tartaric acid 50g/L, potassium hydroxide 38g/L, soda ash 25g/L, bath raio 1:15.Under 60 ℃, add some dyeing waters earlier by bath raio, add peregal again, add potassium hydroxide after 5 minutes, then add tartaric acid, go into cloth then, add dyestuff again, keep vibration 30 minutes, add soda ash again, kept 30 minutes, cooling is soaped.

Embodiment 3:

60 ℃ of woven or knitting cottons after scouringing and bleaching are some, the red concentration 1% of FN-R (owf, cloth heavy 1%).Peregal 1g/L, citric acid 30g/L, tartaric acid 20g/L, potassium hydroxide 16g/L, NaOH 17g/L, soda ash 25g/L, bath raio 1:15.Under 60 ℃, add some dyeing waters earlier by bath raio, add peregal again, add potassium hydroxide, NaOH after 5 minutes, then add citric acid, tartaric acid, go into cloth then, add dyestuff again, keep vibration 30 minutes, add soda ash again, kept 30 minutes, cooling is soaped.

Embodiment 4:

Woven or knitting cotton after scouringing and bleaching is some, reactive golden yellow 2RS concentration 1% (owf, cloth heavy 1%).Peregal 1g/L, malic acid 30g/L, potassium hydroxide 13.5g/L, NaOH 10g/L, sodium phosphate 14g/L, bath raio 1:15.Under 30 ℃, add some dyeing waters earlier by bath raio, add peregal again, add NaOH, potassium hydroxide after 5 minutes, then add malic acid, go into cloth then, add dyestuff again, keep vibration 30 minutes, be warming up to 80 ℃, add sodium phosphate again, kept 60 minutes, cooling is soaped.

Embodiment 5:

Woven or knitting cotton after scouringing and bleaching is some, reactive scarlet 3GRS concentration 1% (owf, cloth heavy 1%).Peregal 1g/L, terephthalic acid (TPA) 50g/L, NaOH 25g/L, sodium phosphate 14g/L, bath raio 1:15.Under 30 ℃, add some dyeing waters earlier by bath raio, add peregal again, add NaOH after 5 minutes, then add terephthalic acid (TPA), go into cloth then, add dyestuff again, keep vibration 30 minutes, be warming up to 80 ℃, add sodium phosphate again, kept 90 minutes, cooling is soaped.

Claims

[claim 1]

A kind of accelerant of REACTIVE DYES, the component that it is characterized in that described accelerant is organic bronsted lowry acids and bases bronsted lowry.
[claim 2]

The accelerant of REACTIVE DYES according to claim 1, it is characterized in that described organic acid is the one or more kinds of combinations in citric acid, tartaric acid, malic acid, pyrophosphoric acid, terephthalic acid (TPA), benzoic acid, oxalic acid, formic acid, the acetate, described alkali is the one or more kinds of combinations in NaOH, potassium hydroxide, sodium carbonate, sodium bicarbonate, the ammoniacal liquor.
[claim 3]

The accelerant of REACTIVE DYES according to claim 2, the content that it is characterized in that described organic bronsted lowry acids and bases bronsted lowry be respectively both fully in and desired content 70～150%.
[claim 4]

The accelerant of REACTIVE DYES according to claim 3, the content that it is characterized in that described alkali be with organic acid fully in and desired content 100～120%.
[claim 5]

A kind of short dyeing method of this accelerant of application is characterized in that described short dyeing method may further comprise the steps:

A. cloth that will be to be dyeed is scouringed and bleaching;

B. according to the cloth quality of step a gained, add the dyeing water earlier, add peregal again by bath raio 1:15, add alkali after 5 minutes, add organic acid then, then add cloth, add REACTIVE DYES at last, 30～60 ℃ of temperature controls keep concussion 20～40 minutes;

C. dye liquor and the cloth with step b gained is incubated 30～90 ℃;

D. with the cooling of the cloth of step c gained, soaping obtains finished product.
[claim 6]

Short dyeing method according to claim 5, it is characterized in that organic acid described in the step b is the one or more kinds of combinations in citric acid, tartaric acid, malic acid, pyrophosphoric acid, terephthalic acid (TPA), benzoic acid, oxalic acid, formic acid, the acetate, described alkali is the one or more kinds of combinations in NaOH, potassium hydroxide, sodium carbonate, sodium bicarbonate, the ammoniacal liquor.
[claim 7]

Short dyeing method according to claim 6, the content that it is characterized in that described organic bronsted lowry acids and bases bronsted lowry be respectively both fully in and desired content 70～150%.
[claim 8]

Short dyeing method according to claim 7, the content that it is characterized in that described alkali be with organic acid fully in and desired content 100～120%.