Disclosure of the invention
The invention aims to provide a disperse dye composition and a dye product thereof, which have overall excellent color fastness performance when being applied to dyeing or printing of hydrophobic fibers, particularly polyester and blend fiber materials thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a disperse dye composition comprises a component A and a component B, wherein the component A is selected from at least one compound shown in a formula (I), the component B is selected from at least one compound shown in a formula (II), based on the component A and the component B, the mass percent of the component A is 5-95%, the mass percent of the component B is 5-95%,
in formula (I):
X1is NO2Or CN, X2Is Cl, Br or CN;
R1、R2each independently is C1~C4An alkyl group;
R3、R4each independently is C1~C4Alkyl, -CH2COOK1or-C2H4COOK2In which K is1、K2Each independently is C1~C4An alkyl group.
In formula (II):
X3is NO2Or CN, X4Is H, Cl, Br or CN;
R5is C1~C4Alkyl radical, C1~C4Alkoxyalkyl or benzyl.
In the above formulas (I) and (II), C1~C4The alkyl group may be methyl, ethyl, linear or branched propyl, linear or branched butyl, preferably methyl or ethyl. Said C1~C4The alkoxyalkyl group may be methoxyethyl, methoxypropyl, ethoxyethyl, ethoxypropyl.
In the disperse dye composition of the present invention, component A is preferably at least one selected from the following formulas (I-1) to (I-10):
the component B is preferably at least one selected from the following formulas (II-1) to (II-10):
preferably, the disperse dye composition comprises a component A and a component B, wherein the component A is at least one of formulas (I-1) to (I-6), the component B is at least one of formulas (II-1) to (II-6), based on the component A and the component B, the mass percentage of the component A is 5-95%, and the mass percentage of the component B is 5-95%.
Further preferably, the disperse dye composition consists of a component A and a component B, wherein the mass percentage of the component A is 5-95%, and the mass percentage of the component B is 5-95%.
The disperse dye composition can further comprise a component C of the following formula (III) and/or (IV), wherein based on the component A, the component B and the component C, the mass percent of the component A is 30-90%, the mass percent of the component B is 5-50%, and the mass percent of the component C is 1-50%:
in the formula (III):
X5is NO2Or H, X6Is Cl, H, C1~C4Alkoxy or-OCH of2-Ph, Ph being phenyl;
R6is C1~C4Preferably methyl or ethyl.
In the formula (IV):
X7is NO2Or CN;
R7is C1~C4Alkyl radical, R8、R9Each independently is C1~C4Alkyl, -CH2COOK3or-C2H4COOK4Wherein, K is3、K4Each independently is C1~C4An alkyl group.
In the above formulas (III) and (IV), C is1~C4The alkyl group may be methyl, ethyl, linear or branched propyl, or linear or branched butyl. Said C1~C4Alkoxy can be methoxy, ethoxy, linear or branched propoxy, linear or branched butoxy.
The component C is preferably selected from one of the following formulas or a mixture of two or more of the following formulas in any proportion:
preferably, in the disperse dye composition, based on the total weight of the dye component A, B, C, the mass percentage of the component A is 50-90%, the mass percentage of the component B is 5-40%, and the mass percentage of the component C is 1-40%.
Further, the disperse dye composition is composed of a component A, a component B and a component C.
Furthermore, the disperse dye composition provided by the invention is composed of a component A, a component B and a component C, wherein:
the component A is at least one of formulas (I-1) to (I-6);
the component B is at least one of formulas (II-1) to (II-6);
the component C is at least one of formulas (III-1) to (III-5);
based on the total weight of the dye component A, B, C, the mass percentage of the dye component A is 50-90%, the mass percentage of the component B is 5-40%, and the mass percentage of the component C is 1-40%.
It should be emphasized that the disperse dye compounds of the present invention, the dyes coupled at the ortho position of pyridone or quinolinone hydroxyl group, generally exist in the form of quinone hydrazone, that is, the dyes of general formulas (ii), (iii) substantially have the quinone hydrazone structures shown in the following formulas (IIa), (iiia), and in consideration of the writing habit of those skilled in the art, the written form of azo is still adopted in the summary and the examples of the invention, which does not affect the essence of the present invention:
wherein R is5、R6、X3、X4、X5、X6The same as defined above for the compounds of the formulae (II) and (III).
The disperse dye composition of the invention usually needs to be added with conventional auxiliary agents in the commercial process. Therefore, the invention also provides a disperse dye product which contains the disperse dye composition and an auxiliary agent, wherein the weight ratio of the auxiliary agent to the disperse dye composition is (0.2-5): 1, preferably (0.5-2): 1. Preferably, the disperse dye product consists of a disperse dye composition and an auxiliary agent. The auxiliary agent is a dispersing agent, other surfactants and the like which are commonly used in the process of compounding disperse dyes, and is particularly preferably selected from one or a mixture of more than two of the following components: lignosulfonates (e.g., commercially available dispersants Reax83A, Reax8A), methyl naphthalene sulfonic acid formaldehyde condensate (dispersant MF), naphthalene sulfonic acid formaldehyde condensate (dispersant NNO), benzyl naphthalene sulfonic acid formaldehyde condensate (dispersant CNF), anhydrous sodium sulfate, polycarboxylic acid-based polymer dispersants, and the like.
The disperse dye product can be obtained by the following method: mixing A, B, C monomer compound (crude dye) at a certain ratio, and micronizing with a grinder such as a sand mill or a grinder in the presence of adjuvant and water; alternatively, the monomeric dye compounds of component A, B, C may be subjected to a pulverization treatment using a pulverizer such as a sand mill or a grinder in the presence of an auxiliary agent or water, and then mixed in a certain proportion. The disperse dye preparations according to the invention, which are liquid after grinding with a sand mill or a grinding mill and can be in the form of powder or granules after spray drying, are known to the person skilled in the art and, since 100% removal of water is not possible during spray drying, even in the case of pulverulent or granular dye preparations, a certain amount of water is still permitted, preferably not more than 10% of the total weight of the dye preparation.
In addition, when the dye product is applied to printing and dyeing of textile fibers, the technical characteristics which contribute to the improvement of the dyeing effect are the components and the proportion of the dye contained in the product.
The disperse dye composition provided by the invention can be further compounded with other dyes to be synergistic to prepare a novel blue or black dye composition. The dye compounds of the formulae (I), (II), (III) and (IV) according to the invention can be synthesized conveniently in a manner known to the person skilled in the art, and commercially available products can also be used.
The invention provides the application of the disperse dye composition and the dye product in dyeing or printing hydrophobic fiber materials. The dye prepared by the dye composition can dye hydrophobic fiber materials (such as polyester and blended fabrics thereof) in a conventional mode in the industry, such as dyeing by a common dip dyeing method or a high-temperature high-pressure dyeing method, and can also be used for direct printing. Wherein, the common dip-dyeing method comprises the steps of pretreating the hydrophobic fiber material, putting the hydrophobic fiber material into a dye vat for dip-dyeing, washing the hydrophobic fiber material to be neutral by cold water after dyeing, wringing, reducing, washing and drying; the direct printing is to carry out dyeing pretreatment, drying and setting on the fabric, print disperse dye color paste on a printing machine, then carry out steaming, fix the color of the dye on the fabric by using a steaming mode, finally wash and tenter setting.
The disperse dye composition and the dye product provided by the invention have the characteristics of excellent friction resistance, washing resistance, sublimation fastness and the like when being applied to dyeing or printing of hydrophobic fiber materials.