116results about How to "Excellent fastness performance" patented technology

The invention relates to a disperse dye, which is particularly applicable to the printing and dyeing of polyester materials and acetate fiber materials. The disperse dye consists of the following components in percentage by weight: 10 to 60 percent of dye monomer A, 5 to 20 percent of dye monomer B, 5 to 20 percent of dye monomer C, 50 to 20 percent of dye monomer D, and assistant. A product of the disperse dye has excellent dyeing property, wide pH adaptability, good consistency and compatibility with other low-temperature dyes in particular, and smooth dye uptake curve.

A disclosed dyeing technology for brocade-cotton blended fabric comprises the following steps: (1) adding a dye and an auxiliary agent into water to prepare a dye solution, controlling the temperature of the dye solution at 20-30 DEG C, then adding brocade-cotton blended fabric, keeping the temperature for 5-10 min, heating to 55-65 DEG C at a speed of 1-3 DEG C/min, keeping the temperature for 20-40 min, adding an alkali to adjust pH to 9-10 for dye fixation, then keeping the temperature for 20-40 min to obtain a dyed half-finished product; and (2) adding glacial acetic acid into the dyed half-finished product to adjust pH to 4-4.5, heating to 80-90 DEG C at a speed of 1-3 DEG C/min, successively performing water washing, soaping, water washing and drying to obtain the dyed finished product. The level-dyeing property of the dyeing technology and the dye spreadability on fabric of the dye are excellent, hydrolyzed dye is less, dye fixation rate is improved, discharged wastewater is reduced, and the dyeing technology has the advantages of being substantial in energy-saving, emission-reduction and environment-friendly.

The invention discloses an economic complex dispersive turquoise blue dye and relates to an azo, pyridine thiazole and coumarin dye compound. The economic complex dispersive turquoise blue dye comprises the following components in percentage by weight: 0.5-75% of monomeric dye A, 0.1-50% of monomeric dye B, 0.1-5% of monomeric dye C and 0.1-50% of monomeric dye D. Compared with the prior art, the dispersive turquoise blue dye disclosed by the invention is used for dyeing polyester materials, dyeing yarns and printing, has excellent high-temperature thermosol dyeing performance, excellent fastness performance, and excellent color fastness to sunlight, color fastness to sublimation and washing fastness and can be on a par with the commercial finished C.I. dispersive turquoise blue 60 dye.

The invention discloses a red reactive dye composition which is formed by mixing 40-60% of a compound shown in a structural formula (I) and 40-60% of a compound shown in a structural formula (II); 65-80% of the red reactive dye composition, 5-10% of a dispersing agent, 0.1-0.5% of a dust preventive, 5-15% of anhydrous sodium sulfate and 5-10% of a nonionic leveling agent are mixed to prepare a commercial dye. The commercial dye can be used for discharge printing, anti-dyeing printing or batik dyeing imitating printing of cellulosic fiber fabrics, and has the characteristics of being bright-colored and pure in colored light, high in brightness, high in white cloth staining and after tack fastness and excellent in other fastness properties.

The invention discloses a blue disperse dye composition and a blue disperse dye. The composition comprises a component A, a component B and a component C composed of one or more compounds. The blue disperse dye prepared from the composition is bright in color, has obvious advantages in strength, elevating power, sublimation fastness and washing fastness, and has the advantages of being wide in pH value application range and high in compatibility.

The invention discloses a blue reactive dye for printing, and preparation methods thereof. The blue reactive dye has a structural formula shown as formula (1). The invention also discloses three different preparation methods of the blue reactive dye. The reactive dyes prepared by the three methods all blue printing reactive dyes with excellent color fastness such as washing durability, rub resistance and sunlight fastness, and meet the requirements of various indexes.

The invention discloses heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye. The molecular structure of the disperse dye comprises carboxylic acid ethyl ester groups, and the structural general formula of the carboxylic acid ethyl ester groups is D-COOC2H5, wherein the D refers to a color body with a heterocycle azo structure. The invention further provides a preparation method of the heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye, existing cyanophoric disperse dye is selected as a raw material, and an alcoholysis method is applied to preparation of the heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye. The disperse dye has good dyeing property, and has high dye-uptake rate and color fastness when being applied to Dacron dyeing; during post-treatment of PET (polyethylene terephthalate) fiber dyeing, acid dye containing water soluble groups and harmfulless ethyl alcohol are generated only through alkaline solution treatment of fibers to achieve ester group hydrolysis, and the obtained acid dye can be recycled through acidification and the like.

The invention discloses a preparation method of gray reactive dye. 4-nitro-2-aminophenol diazonium and H acid have an alkaline coupling reaction, the pH value is controlled to be larger than 6.5, and the mixture reacts for 10 h at the temperature of 0-5 DEG C; a coupling body and chromium trichloride have a metal complex reaction under the action of a catalyst at the temperature of 95-100 DEG C, and the residual amount of free chromium metal is controlled; tricyanogen chloride and 3 times of ammonia water have a primary condensation reaction, ice water is added to a condensation product, washing is performed twice, and ammonium chloride is removed; the primary condensation product and a complexing solution have a secondary condensation reaction; finally, a dispersant NNO and a dispersant MF are added for standardization, and a gray reactive dye product is obtained through filtering, impurity removal and spray drying.

The invention belongs to the field of fine chemical engineering, and particularly relates to a reactive brilliant blue dye and a preparation method thereof. The structure of the reactive brilliant blue dye is a compound as shown in a general formula (I) in the specification, wherein each group in the formula is defined in the specification. The preparation method comprises the following steps: firstly, enabling cyanuric chloride (or cyanuric fluoride) to react with a compound with a vinyl sulfone sulfate or chloroethyl sulfone group to obtain a first condensation compound; enabling the first condensation compound to react with a compound shown in a general formula (II) in the specification to obtain a second condensation compound, namely a part of reactive brilliant blue dye containing a vinyl sulfone sulfate or chloroethyl sulfone group as shown in the general formula (I); and hydrolyzing the second condensation compound under an alkaline condition to obtain another part of reactive brilliant blue dye containing a vinyl sulfone group in the general formula (I). The preparation method disclosed by the invention is low in cost, low in energy consumption, low in pollution and suitable for industrial large-scale production; the reactive brilliant blue dye is used for dyeing and printing of protein fibers, synthetic fibers, cellulosic fibers and blended fabrics thereof; and the fabric is bright and gorgeous in color after being dyed.

The invention relates to a preparation method of a dye composition for dyeing of fiber materials. The method comprises the following steps: fully grinding three dyes including a component A, a component B and a component C, successively adding the components into a mixing tank, then adding a component F and a component D, fully stirring for 1-2 h, so as to prepare the dye composition. The component A is Deksol B (C.I. reactive black 5), the component B is active orange G, the component C is reactive yellow (C.I. reactive yellow 201), the component D is an auxiliary agent, and the component F is water. The dye composition prepared by the invention is not only environment-friendly but also has the advantages of high stability, good levelling property, high blackening degree, good low temperature water solubility, excellent fastness properties, and simple and feasible usage method.

The invention discloses a blue disperse dye. The blue disperse dye mainly comprises the following components: 5-25 parts by weight of dye monomers A as shown in formula (I), 1-5 parts by weight of dye monomers B as shown in formula (II), 1-5 parts by weight of dye monomers C as shown in formula (III), 0.5-5 parts by weight of dye monomers D as shown in formula (IV), and auxiliaries can also be added in the blue disperse dye. The blue disperse dye disclosed by the invention is suitable for dyeing polyester materials, dyeing yarn and printing, and has the advantages of excellent high-temperature pad-dry-cure dyeing performance and excellent fastness performances, such as fastness to sunlight, fastness to sublimation and fastness to washing, and the certain performances are better than those of a commercially available finished product dye C. I. disperse blue 56.

A cellulose fiber garment anhydrous salt-free dyeing method includes the steps: 1) preparation of a modification solution, 2) padding and drying, 3) preparation of a dyeing solution, and 4) garment dyeing and padding. Compared with traditional garment dyeing, the cellulose fiber anhydrous salt-free garment dyeing has unique process characteristics, especially preparation of the modification solution in the garment dyeing; in addition, in the knitted fabric anhydrous salt-free garment dyeing process, in fabric padding, the caterpillar band speed and considered reasonable control of the tension, compared with a commonly used dip dyeing process of cotton knitted fabric dyeing, the anhydrous salt-free garment dyeing can substantially reduce the consumption of water, heat and chemicals in the dyeing process, and has huge advantages in energy conservation, emissions reduction, consumption reduction and cost reduction.

The invention relates to red liquid disperse dye and a preparation method and application of the red liquid disperse dye. The red liquid disperse dye is suitable for dyeing and printing of dacron and blended fabrics of the dacron, and is especially suitable for the automatic production process of dyeing the dacron and the blended fabrics of the dacron.

The invention discloses a red reactive dye, which is characterized by being a dye which comforts to a general formula (1) shown in the specification. The dye is suitable for dyeing and printing a fiber material, such as a hydroxyl group-containing or nitrogen-containing fiber material, and is particularly suitable for dyeing a cotton fiber material; and a dyed product has good fastness property. When the dye is used for dyeing, less inorganic salt and alkali are consumed compared with the conventional dye. The dye belongs to an environment-friendly dye.

The invention relates to yellow liquid disperse dye and a preparation method and application of the yellow liquid disperse dye. The yellow liquid disperse dye is suitable for dying dacron and other blended fabrics, and especially suitable for the automatic production process of dyeing the dacron and other blended fabrics.