Disclosure of Invention
The invention provides a black reactive dye composition, which has high fixation rate and excellent color fastness properties such as water washing resistance, friction resistance, perspiration resistance and the like, is suitable for dyeing and printing of fibers or textile materials thereof, and is an environment-friendly reactive dye.
The invention provides a black reactive dye composition, which comprises a component A shown in a formula (I), a component B shown in a formula (II), a component C shown in a formula (III) and optional auxiliary agents;
wherein A, B are each independently hydrogen or-SO
3 M
1 ;R
1 、R
2 Each independently is-ch=ch
2 or-C
2 H
4 OSO
3 M
1 ;R
3 Is that
R
4 Is hydrogen or-COOM
2 ;R
5 And R is
6 Each of which is a single pieceindependently-SO
3 M
2 、
R
7 Is H, (C)
1 -C
5 ) Alkyl (preferably (C)
1 -C
2 ) -alkyl), (C
1 -C
5 ) Alkoxy (preferably (C)
1 -C
2 ) -an alkoxy group); r is R
8 Is H, (C)
1 -C
5 ) Alkyl (preferably (C)
1 -C
2 ) -alkyl), or (C
1 -C
5 ) Alkoxy (preferably (C)
1 -C
2 ) -an alkoxy group); r is R
9 is-CH=CH
2 or-C
2 H
4 OSO
3 M
3 ;R
10 、R
13 Each independently is-ch=ch
2 or-C
2 H
4 OSO
3 M
2 ;R
11 、R
12 Each independently is hydrogen or SO
3 M
2 ;
M 1 、M 2 、M 3 Each independently is hydrogen, potassium, sodium or lithium.
Preferably, in the black reactive dye composition, the component A is selected from one or more of the compounds of the formulas (I-1) to (I-15),
preferably, in the black reactive dye composition, the component B is selected from one or more of the compounds of formulas (II-1) to (II-4):
preferably, in the black reactive dye composition, the component C is selected from one or more of the compounds of formulas (III-1) to (III-7):
in the present invention, the choice of the auxiliary agent is not particularly limited, and may be a conventional auxiliary agent. Preferably, the auxiliary agent is at least one selected from the group consisting of a dispersant, a filler, and other performance improving auxiliary agents.
Preferably, the dispersant is at least one selected from the group consisting of methyl naphthalene sulfonic acid formaldehyde condensate (dispersant MF), naphthalene sulfonic acid formaldehyde condensate (NNO), and benzyl naphthalene sulfonate formaldehyde condensate (dispersant CNF).
Preferably, the filler is industrial sodium sulfate (anhydrous sodium sulfate).
Preferably, the above-mentioned other performance improving auxiliary agent is selected from at least one of a dust-proofing agent, a solubility improving agent, an alkali resistance auxiliary agent, a surfactant, a buffer, and an accelerating agent.
Preferably, in the black dye composition, the content of the component A is 10 to 90 parts by weight, preferably 20 to 90 parts by weight, more preferably 30 to 90 parts by weight, and even more preferably 40 to 90 parts by weight;
preferably, in the black dye composition, the content of the component B is 1 to 50 parts by weight, preferably 4 to 45 parts by weight, more preferably 7 to 40 parts by weight, and even more preferably 10 to 35 parts by weight;
preferably, in the black dye composition, the content of the component C is 1 to 30 parts by weight, preferably 0 to 25 parts by weight, more preferably 1 to 20 parts by weight, and even more preferably 1 to 15 parts by weight;
preferably, in the black dye composition, the content of the auxiliary agent is 0 to 80 parts by weight, preferably 0 to 70 parts by weight, more preferably 0 to 60 parts by weight, and even more preferably 0 to 50 parts by weight.
The invention also provides a preparation method of the black reactive dye composition, which is characterized by comprising the step of mixing the component A, the component B, the component C and optional auxiliary agents. Optionally, during mixing, each dye compound is present in the form of a powder, granulate or aqueous solution; alternatively, a liquid dye product is produced, or a solid product is produced by subjecting the liquid dye product to an optional drying process, or a direct mixing of solid dye powders according to the components.
In the present invention, the apparatus for mixing the dry powder is not particularly limited, and preferably, a conical, drum-type or pear blade-type mixer is used for mixing, and after uniform mixing, the test analysis is passed and then the package is carried out. The method for mixing the slurry is not particularly limited, and it is preferable to mix the slurry in a vessel with stirring. In the present invention, the equipment used in the drying process is not particularly limited, and it is preferable to dry the material in a spray tower, a drying room, a flash dryer, or the like to obtain a granular or powdery product.
In another aspect, the present invention provides the use of the above black reactive dye composition as a black reactive dye.
Alternatively, the black reactive dye composition is used for printing and dyeing cellulose fibers, protein fibers, polyamide fibers or textiles and blended fabrics thereof.
Optionally, the cellulosic fibers include cotton fibers, hemp fibers, and regenerated fibers.
Optionally, the protein fibers include wool, silk, and wool fabrics.
Optionally, the black reactive dye composition is used for dyeing and printing hydroxyl-containing or nitrogenous fiber materials such as cellulose fibers, protein fibers and the like, and optionally, dyeing or printing.
The black reactive dye composition provided by the invention has the following advantages: the color fixing rate is high, the lifting force is good, and the color fastness such as water resistance, friction resistance, perspiration resistance and the like are excellent. The black reactive dye composition of the invention is suitable for printing and dyeing cellulosic fiber materials, such as cotton, hemp, regenerated fibers and textiles thereof, and is also suitable for printing and dyeing protein fibers, polyamide fibers and textiles and blended fabrics thereof.
Detailed Description
The present invention will be further described with reference to specific examples, but the scope of the present invention is not limited thereto.
The black reactive dye composition of the present invention may be prepared by using the component A of the formula (I), the component B of the formula (II) and the component C of the formula (III) in a manner well known to those skilled in the art, for example, by a conventional synthesis method, or by using commercially available products.
Example 1
61.5 parts by weight of component A of formula (I-1), 17.8 parts by weight of component B of formula (II-1), 6.2 parts by weight of component C of formula (III-1) and 14.5 parts by weight of anhydrous sodium sulphate are mixed by a mixing machine to obtain composition 1, and the composition is used as black reactive dye to print cotton fabric into black.
Example 2
60.4 parts by weight of component A of formula (I-1), 15.2 parts by weight of component B of formula (II-2), 10.7 parts by weight of component C of formula (III-1) and 13.7 parts by weight of anhydrous sodium sulphate are mixed by a mixing machine to obtain composition 2, and the composition is used as black reactive dye to print cotton fabric into black.
Example 3
58.2 parts by weight of component A of formula (I-15), 20.0 parts by weight of component B of formula (II-3), 12.3 parts by weight of component C of formula (III-2) and 9.5 parts by weight of anhydrous sodium sulphate are mixed by a mixing machine to obtain composition 3, and the composition is used as black reactive dye to print cotton fabric into black.
Example 4
62.0 parts by weight of component A of formula (I-6), 18.9 parts by weight of component B of formula (II-4), 8.6 parts by weight of component C of formula (III-4) and 10.5 parts by weight of anhydrous sodium sulphate are mixed by a mixing machine to obtain composition 4, and the composition is used as black reactive dye to print cotton fabric into black.
Comparative example 1
61.8 parts by weight of component A of formula (I-1), 10.2 parts by weight of component B of formula (II-2), 7.2 parts by weight of component C of formula IV and 20.8 parts by weight of anhydrous sodium sulfate are mixed by a mixing machine to obtain composition 5, and the composition is used as black reactive dye to print cotton fabric into black.
Comparative example 2
And (3) mixing 66.9 parts by weight of component A of formula (II-1), 21.6 parts by weight of component B of formula (II-2), 1.1 parts by weight of component C of formula V and 10.4 parts by weight of anhydrous sodium sulfate by a mixing machine to obtain a composition 6, wherein the composition is used as a black reactive dye, and cotton fabric can be printed to black.
Comparative example 3
65.7 parts by weight of component A of formula (I-1), 6.9 parts by weight of component B of formula (III-1), 15.1 parts by weight of component C of formula (VI) and 12.3 parts by weight of anhydrous sodium sulfate are mixed by a mixing machine to obtain a composition 7, and the composition is used as a black reactive dye to print cotton fabric into black.
Performance testing
The compositions obtained in examples 1 to 4 and comparative examples 1 to 3 were respectively subjected to printing and dyeing tests with reference to national standard GB/2387-2003 "method for measuring reactive dye dyeing color light and intensity", and cloth samples were subjected to color fastness tests of fixation rate, rubbing resistance, washing resistance and perspiration resistance according to GB/T2391-2014, GB/T3920-2008, GB/T3921-2008 and GB/T3922-2013, and the results are shown in Table 1 below:
TABLE 1
The result shows that the black reactive dye composition has high color fixing rate, good lifting force and good performance indexes compared with the performance of the traditional product, particularly has excellent color fastness such as washing resistance, friction resistance, perspiration resistance and the like, and is an environment-friendly reactive black dye capable of meeting the requirements of high-end clients.