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36results about How to "Improve dry rubbing fastness" patented technology

Printing and dyeing method for cotton fabric

The invention discloses a printing and dyeing method for cotton fabric. The printing and dyeing method includes the steps of dyeing, washing and drying. Before dyeing, methyl salicylate and hydrogen peroxide are adopted for pretreating the cotton fabric. During dyeing, dodecylamine polyoxyethylene ether accounting for 6-10 wt% of the mass of dye liquor, titanium dioxide accounting for 0.5-2 wt% of the mass of the dye liquor, ethyl oxalate accounting for 3-7 wt% of the mass of the dye liquor and phenylpropanol accounting for 1-3 wt% of the mass of the dye liquor are added into the dye liquor. According to pretreatment, the cotton fabric is put in a solution with the concentration of methyl salicylate being 10-15 g/L and the concentration of hydrogen peroxide being 25-30 g/L for 15 min. Dodecylamine polyoxyethylene ether, titanium dioxide, ethyl oxalate and phenylpropanol need to be firstly mixed before the dye liquor is added, and then the mixture is subjected to ultrasonic treatment for 28 min. The dye uptake of dyestuff during dyeing of the cotton fabric can be obviously increased, wet friction firmness, dry friction firmness and illumination firmness are all remarkably improved, and the structure of the cotton fabric is not changed. The printing and dyeing method is simple in process, convenient to treat, remarkable in effect and suitable for large-scale application and popularization.
Owner:绍兴百丽恒印染有限公司

Leather mildew-prevention and antibacterial agent and preparation method thereof

The invention discloses a leather mildew-prevention and antibacterial agent and a preparation method thereof, and belongs to the field of leather mildew prevention. A bonding additive is prepared fromcasein by modifying with hexamethylenetetramine and the like, so that a mildew preventive can have better compatibility with leather collagen and penetrate into leather more, bonding fastness and dryrubbing fastness are improved, and the mildew preventive can be retained for a long time; a prepared antibacterial active agent improves polymerizability and easy dispersibility of the mildew preventive, and can be uniformly dispersed on the leather surface and firmly combined with the leather, and mildew preventive efficiency is improved; a prepared spreading wax-based additive enables the mildew preventive to form a film and spread on the leather surface by means of lower surface energy, penetrates into the leather to perform moistening, and improves leather hand feeling; on the other hand,water on the leather surface is stopped by a hydrophobic chain introduced by the wax-based additive, the influence of external oxygen and water vapor on leather quality is reduced, and mildew prevention is fundamentally performed. The problem that quality and appearance of leather are affected by poor mildew-prevention and antibacterial effects of current mildew preventives is solved.
Owner:汪逸凡

A kind of dry rubbing fastness improving agent of textile dyeing and its preparation method and dry rubbing fastness improving process

The invention discloses a textile dyeing substance dry friction fastness improving agent, a preparation method thereof, and an improving technology. The improving agent is composed of sulphobetaine type ampholytic surfactant, crosslinkable epoxy group condensate, polyethylene emulsion, and diglycol. The preparation method comprises the following steps: preparing a sulphobetaine type ampholytic surfactant in advance, adding the surfactant into a reactor, and heating under stirring to dissolve the surfactant; carrying out water bath at a temperature of 80 to 90 DEG C, stirring, cooling, and saving for later use; adding diglycol, polyethylene emulsion, and crosslinkable epoxy group condensate in sequence, evenly mixing, and finally filtering to obtain the improving agent. The invention also provides a unique padding technology and impregnating technology using the provided improving agent. The provided improving agent, preparation method, and processing technology are developed though long-term research, development, and practices, can effectively improve the dry friction fastness of textile dyeing substances, and fulfill the technical blank for improving the dry friction fastness in the textile post-treatment.
Owner:上海兴康超纤新材料有限公司
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