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

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 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.