60results about How to "Good dyeing reproducibility" patented technology

The invention relates to a compound dispersive red dye, especially relating to a polyester material printing and dyeing compound dispersive red dye, containing the following components in weight percent: monomer A 20%-45%, monomer B 5%-15% and auxiliary. It has the advantages of high dyeing ratio, good dyeing repeatability, good dyeing uniformity, excellent fastness, approach of coloured light to dispersive red S-5BL, etc.

The invention discloses a manufacturing method of milk protein fiber or filament or blended yarn dyeing and yarn-colored product, which is characterized by the following: changing coiling density of yarn; controlling heating temperature; adopting segmented contraction in the cylinder yarn dyeing course; adding self-producing milk protein fiber dyeing specific adjuvant; utilizing polyacrylonitile or polyvinyl acetate alcohol as carrier realize active dyeing technology of milk protein fiber; solving the difficulties of flower color, weak color and bad fastening degree problem to produce excellent washing shrinkage and stable size yarn-dyed product through weaving, shrinking and softening and final disposal.

Provided is a black reactive dye composition and a preparation method and application thereof.The composition is composed of a component A, a component B, impurities and optional additives.The black reactive dye composition is applicable to printing and dyeing of various fibers and textile fabrics thereof, the dyeing reproducibility is good, the relative fixation rate is high, all color fastness properties are excellent, and excellent comprehensive performance is achieved.

The invention relates to a printing and dyeing method, and especially relates to a production method for outside pasting product pretreatment and cationic dye one-bath process dyeing. The method comprises the following steps: selecting a sample cloth, pre-setting a grey, singeing the grey, preparing a complex formulation assistant according to a formula, using the complex formulation assistant according to a ratio, designing a dyeing formula, carrying out jar dyeing on the cloth sample, carrying out hot setting, singeing the obtained color body, washing by water, drying, carrying out oiling setting, carrying out after-finishing calendering, carrying out after-finishing full decatizing, and examining the obtained finished product. The production method for for outside pasting product pretreatment and cationic dye one-bath process dyeing has obvious energy saving and emission reduction effects, and the handle elasticity, the color fullness and various quality indexes of fabrics obtained in the invention can meet requirements of different clients.

The invention discloses an ink composition with a high-weather-resistance black dye for ink-jet printing. The composition is prepared by mixing following components in percentage by weight: 6-12 percent of polyhydroxy alcohol, 13-30 percent of solvents, 0.1-3 percent of surfactants, 0-0.5 percent of pH regulators, 0.1-0.3 percent of bactericides, 20-40 percent of mordant black dye paste and the balance of deionized water. The invention also provides a method for purifying the mordant black dye paste, which comprises the following steps of: mixing mordant black dye raw powder and deionized water based on a weight ratio of 1:9, heating, filtering, and performing desalination treatment to obtain the mordant black dye paste. The ink composition with the high-weather-resistance black dye for ink-jet printing, disclosed by the invention, has extremely high light fastness and ozone resistance, the printing quality is good, the optical density is high, the quality guarantee period is long, and a nozzle is not blocked.

The invention discloses a blue reactive dye mixture. The blue reactive dye mixture is characterized by comprising a dye shown in a general formula (1) and a dye shown in a general formula (2 in the weight ratio of (68.6-60):(26.3-32). The dye mixture has excellent light color boosting capacity and high color fixing rate when dyeing or printing cellulose, has higher dyeing reproducibility than ordinary commercial dyes, and can effectively solve the problems of dyeing defects and staining; and the formula is low in cost. Moreover, the blue reactive dye mixture has excellent color fastness to sunlight and perspiration-light, and is applicable to various application processes.

The invention provides a preparation method and application of a yellow reactive dye combination, and fiber or fiber fabrics dyed with the yellow reactive dye combination, and belongs to the field of reactive dye. The dye combination is composed of, by weight parts, 30-60 parts of a component A shown in a formula (I), 30-60 parts of a component B shown in a formula (II), 1-10 parts of a component C shown in a formula (III), and 0-60 parts of auxiliaries. The yellow reactive dye combination is applicable to dyeing various fibers and fiber fabrics and can obtain excellent color fastness performance.

The invention discloses a dyeing technology of wool/polyester blended fabric. The dyeing technology comprises the steps of (1) preparing a pretreatment solution: adding an acetic acid-sodium acetate buffer solution and fatty acid methyl ester ethoxylate into mixed liquid of ethanol and water, and evenly stirring to prepare the pretreatment solution; (2) pretreating a textile of the wool/polyester blended fabric; (3) preparing dye liquor: adding a reactive dye for wool into the mixed liquid of the ethanol and the water, adding a leveling agent while stirring, evenly stirring and then preparing the dye liquor; (4) dyeing: putting the wool/polyester blended fabric treated in the step (2) into the dye liquor prepared in the step (3), wherein the initial temperature of the dye liquor is 10-20 DEG C; after that, heating the dye liquor up to 40-50 DEG C at the heating rate of 5-6 DEG C/min, and then heating the dye liquor up to 60-90 DEG C at the heating rate of 2-3 DEG C/min; dyeing the wool/polyester blended fabric, then washing, soaping, washing and drying to obtain a finished product.

Relating to the technical field of dyes, the invention provides a reactive dye mixture to solve the problems of easy staining, low solubility and undesirable color fastness of printing navy blue and black dyes during washing. The reactive dye mixture is made of, by weight, 1-80% of a dye A, 20-99% of a dye B, and 0-50% of a dye C. The dye has excellent dissolution performance, is easy to wash off and difficult to stain each other, and has excellent perspiration fastness, washing fastness and rubbing fastness, as well as good color paste storage stability, thus being very suitable for printing of cellulose fiber, and the steaming or baking curing process.

The invention relates to a low-salt dyeing method of a reactive dye. The dyeing method does not change the conventional dyeing equipment and basic dyeing process of cotton textiles, and is easy to implement and control. Compared with a traditional dyeing method of a reactive dye to cotton textiles, the dyeing method can reduce the dosage of a dyeing electrolyte by 50% or above, and the cotton textile dyed by adopting the low-salt dyeing method of the reactive dye disclosed by the invention has obviously higher color rendering depth, high dyeing fastness and excellent dyeing reproducibility, and can be used for reactive dye dyeing processing of various cotton fibers and products thereof, so that the use amount of the dyeing electrolyte is remarkably reduced, the environment is protected, and the dyeing method has good application effect and bright market prospect.

The invention discloses a dyeing technology of water-absorbing and quick-drying nylon-cotton interwoven knitted fabric with high washing fastness. The dyeing technology comprises the following steps of pretreatment, cotton dyeing, water washing, nylon dyeing, fixation and soaping. The dyeing technology of the invention can make the washing fastness of the dark nylon nylon-cotton interwoven knittedfabric reach 4-5 or more, and the nylon-cotton interwoven knitted fabric has good water-absorbing and quick-drying functions and good dyeing reproducibility, and is suitable for mass production and application.

The related preparation method for bright-yellow reactive dyes K-6G for dyeing and printing to cotton, hair, silk, leather, polyamide synthetic fabric and other fibre mix-fabric comprises: with 2, 4-sodium biaminobenzoic sulfonate, cyanuric chloride, NaNO2, HCl, 3-carbamoyl-4-methyl-6- hydroxyl-N-acetaldehydepyridone, and sodium p-anilinesulfonate as materials; dissolving, first condensing, neutralizing, coupling, second condensing, spray drying, blending, and obtaining the target. This invention can reduce pollution and cost, and has high yield fit to industrial production.

The invention discloses a homochromatic dyeing process for a chitin-containing viscose-fiber fabric. The method comprises the following steps: (S1) carrying out pretreatment: submerging the chitin-containing viscose-fiber fabric into isopropyl alcohol, adding a sodium hydroxide solution, carrying out uniform stirring, then, adding an etherifying agent CTA, carrying out a reaction with stirring, pumping off a solvent, carrying out water washing, and carrying out baking; (S2) carrying out reactive dyeing: submerging the fabric into a reactive dye dyeing solution, heating the reactive dye dyeing solution to a primary dyeing temperature, adding an organic solvent B, heating the solution to a dyeing temperature, then, adding organic base and sodium carbonate according to the volume of the reactive dye dyeing solution, then, cooling the solution to a color fixation temperature, carrying out heat preservation, cooling the solution to room temperature; (S3) carrying out aftertreatment: washing the fabric by water, carrying out soaping, carrying out water washing again, and carrying out air-drying. According to the homochromatic dyeing process for the chitin-containing viscose-fiber fabric, the defect that the dyeing rate of chitin viscose fibers is relatively high can be overcome, a uniform and consistent dyeing effect is obtained, and the homochromatic dyeing process has the advantages of high color fastness and simple process.