52results about How to "High color fastness to washing" patented technology

The invention relates to the technical field of color fixing agents, and provides a cationic type formaldehyde-free color fixing agent for reactive dye, wherein through the cationic type formaldehyde-free color fixing agent, the wet rubbing fastness and washing color fastness of textiles can be better improved. The cationic type formaldehyde-free color fixing agent for the reactive dye is prepared from, by mass, 50-60 parts of dimethyl diallyl ammonium chloride, 0.2-10 parts of monomers containing tertiary amino groups, 0.1-5 parts of cross-linking agents, 0.01-0.3 part of initiating agents and 30-48 parts of deionized water, wherein an aqueous solution with the mass percentage concentration of 60+ / -0.5% or 65+ / -0.5% is adopted as the dimethyl diallyl ammonium chloride. Meanwhile, the invention further provides a preparation method of the cationic type formaldehyde-free color fixing agent for the reactive dye.

The invention provides an improved all-cotton fabric printing method, and solves the technical problems that a direct printing method is used in a conventional processing technology, a cloth materialis faded easily after water washing for many times and the water washing fastness is poor. The improved all-cotton fabric printing method includes the following steps: a, sizing: pretreating an all-cotton fabric with a sizing material; b, printing: directly spray-printing a thin film with a reactive dye gravure printing ink to form a pattern, and then transfer-printing the pattern on the thin filmto the sized all-cotton fabric; c, steaming: putting the all-cotton fabric after printing into a steamer, and steaming; d, cooling: after cooling to room temperature, tearing off the thin film on theall-cotton fabric; e, water washing: washing for 3 min in cold water with the temperature of 18 DEG C, then placing in hot water with the temperature of 58 DEG C, washing for 10 min, finally, placingin cold water with the temperature of 15 DEG C, washing for 4 min, and then spin-drying; and f, putting the water-washed all-cotton fabric into a setting machine and setting the shape. The printing method has the advantages of high water washing resistance and high color fastness.

The invention relates to active dye ink-jet printing ink and a preparation method thereof. The active dye ink-jet printing ink comprises the following components by mass percent: active dye concentrated solution 25 to 50 percent, humectant 5 to 15 surfactant 0.1 to 3 pH regulator 0.5 to 3 disinfectant 0.1 to 1 water-soluble cosolvent 5 to 10 and deionized water in balancing amount. The active dye ink-jet printing ink is prepared through the following steps: adding the active dye concentrated solution, the humectant, the surfactant, the water-soluble cosolvent, the pH regulator and the disinfectant into the deionized water, stirring and then continuing to stir through an emulsifying machine; still standing; and finally filtering through a filtration film. The active dye concentrated solution (the concentration is greater than 20 percent) is obtained through refining with a two-stage nano-filtration device, so that the purity is very high; and invention is environmental-friendly, and the prepared active dye ink-jet printing ink has the advantages of high printing smoothness, storage stability, pattern printing accuracy and color fastness and is washable.

The invention relates to a preparation method of a cotton fabric yellow vegetable dye. The preparation method is characterized by comprising: putting orange peels into water according to a mass ratio of 1:(10-20), performing heating and ultrasonic treatment, and performing drying after filtration to obtain a dye 1; putting white jasmine petals into an organic solvent according to a solid-liquid ratio of 1:(30-50), performing heating and intermittent ultrasonic treatment, and performing filtration, vacuum concentration and drying sequentially to obtain a dye 2; and mixing the dye 1, the dye 2 and loess according to a mass ratio of 10:(10-20):(0.5-1) to obtain the cotton fabric yellow vegetable dye. According to the preparation method of the cotton fabric yellow vegetable dye, provided by the invention, the required plant resources are rich, the raw materials are low in price and easy to obtain, the preparation method is simple and is good in safety, and no chemical synthetic dye exists during the preparation to cause pollution to the environment, so that the preparation method can be applied to cleaning production of the printing and dyeing industry, and can be used for mass production. The prepared cotton fabric yellow vegetable dye has a certain anti-oxidation function, causes no environmental pollution, is nontoxic to human bodies, and is convenient to store and transport.

The invention discloses a preparation method of a novel acid color fixing agent special for emerald blue dye and a prepared color fixing agent. During preparation, the preparation method comprises the following steps: mixing bisphenol S with diethylene glycol monobutyl ether, heating to 85 DEG C, carrying out stirring treatment for 34 minutes, then adding a polyethyleneimine solution, cooling to 66 DEG C, and carrying out the stirring treatment for 72 minutes; then adding a dichloroacetic acid solution, and carrying out the stirring treatment for 85 minutes under a temperature of 76 DEG C; then dropwise adding a sodium borohydride solution within 10 minutes, carrying out the stirring treatment under the temperature of 70 DEG C after completing adding dropwise, and cooling to a room temperature, thus obtaining the color fixing agent. Under interaction of all raw materials, the color fixing agent prepared by the invention has the advantages that the dyeing fastness is high, dry-wet rubbing fastness and washing color fastness can be remarkably increased, the influence on sensitive colored light is small, the usage is small, and the like; during color fixation of dye in sensitive colors of emerald blue, brilliant blue and the like, no color change is fundamentally generated, the environment is not polluted as no formaldehyde exists, the raw materials are easy to obtain, and a production technology is simple.

The invention belongs to the technical field of papermaking, and in particular relates to overcoating base paper used for an outdoor highly-strengthened plate and a preparation method of the overcoating base paper. The base paper is prepared from the following raw materials: wood pulp, a filler, an auxiliary agent and a pigment, wherein the auxiliary agent is composed of sodium hydroxide, sulphuric acid, aluminium sulphate and a wet strength agent; and the filler is composed of titanium dioxide, magnesium silicate and kaolin. The prepared overcoating base paper used for the outdoor highly-strengthened plate provided by the invention has a good covering property, fiber distribution uniformity, fine paper surfaces, strong corrosion resistance, a high sun-proof grade, and high water washing color fastness; and after the base paper is impregnated with melamine for veneering, the base paper is impregnated into a solution with the pH of 3.5-10, and no phenomena such as blistering and deformation of the paper happen; and the sun-proof grade is 6 grade or more, and the water washing color fastness is high. The invention also provides a preparation method of the overcoating base paper usedfor the outdoor highly-strengthened plate, and the base paper has high practicability and scientific and reasonable operation, and is simple and practicable.

The invention relates to the technical field of color fixing agents and provides a micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent which is capable of well improving the fastness of the textile to wet rubbing and the color fastness of the textile to washing. The micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent comprises the following raw material components in parts by weight: 50-60 parts of methacryloxyethyltrimethyl ammonium chloride, 0.25-5 parts of epoxy compound, 0.1-2 parts of crosslinking agent, 0.02-0.3 part of initiator and 35-45 parts of deionized water, wherein the methacryloxyethyltrimethyl ammonium chloride is a water solution with a weight percent concentration of 65-98 percent. Meanwhile, the invention provides a preparation method of the micro-crosslinking type poly(methacryloxyethyltrimethyl ammonium chloride) modified color fixing agent.