31results about How to "Shade effect is small" patented technology

The invention discloses a formaldehyde-free color-fixing agent of an active dye, which is prepared with 2-4 compounds. The formaldehyde-free color-fixing agent comprises a reactive functional group, has high cationic performance, and can effectively improve the dry rubbing fastness, wet rubbing fastness, color fastness to washing of the fabric dyed with the active dye. Moreover, the formaldehyde-free color-fixing agent has little effect on the color light of the fabric.

The invention relates to a preparation method and application of a multifunctional ultraviolet absorbent for terylene. The general structural formula of the absorbent is as follows: formula, wherein Y is a quaternary ammonium salt group. According to the preparation method and application of the multifunctional ultraviolet absorbent for terylene disclosed by the invention, the dyeing mode of the ultraviolet absorbent to terylene is similar to disperse dyes, and fabrics can be subjected to anti-ultraviolet finishing by using a high-temperature and high-pressure exhausting method and can also be dyed with the disperse dyes in the same bath; the finished fabrics not only have good anti-ultraviolet properties, but also have the effects of killing or inhibiting Gram-positive bacteria and Gram-negative bacteria represented by staphylococcus aureus and Escherichia coli; and meanwhile, the fabrics have good anti-static function.

The invention discloses a group of medium temperature type three-primary-color disperse dyes. A yellow disperse dye is a mixture formed by 5-20 % of compound shown by a chemical formula (1), 5-40 % of compound shown by a chemical formula (2) and 5-40 % of compound shown by a chemical general formula (3) in percentage by weight; a red disperse dye comprises one or more monomers in a compound shown by a chemical general formula (4); and a blue disperse dye comprises one or more monomers in a compound shown by a chemical general formula (5). The medium temperature type three-primary-color disperse dyes disclosed by the invention have the advantages as follows: medium temperature type three primary colors beautiful in colored lights and high in intensities; the colored lights of the medium temperature type three primary colors are similar to the original three primary colors; the medium temperature type three-primary-color disperse dyes have the advantages of perfect compatibility, high lifting force, distillation, excellent fastness and the like during dyeing and are a group of medium temperature type three-primary-color disperse dyes with excellent comprehensive performances.

The invention discloses a preparing method of a novel acidic dye-fixing agent for seamless underwear and the prepared dye-fixing agent. The preparing method comprises the steps of mixing bisphenol S, dibutyltin oxide and an alkanolamide solution, conducting heating and stirring processing on the mixture, then adding hexamethyldisilazane into the mixture, and conducting cooling and stirring processing on the mixture, wherein the mass ratio of bisphenol S to dibutylin oxide to hexamethyldisilazane is (28-36):(1-5):(5-13) and the volume ratio of hexamethyldisilazane to the alkanolamide solution is 1:(6-8); adding a citric acid solution into the mixture, and stirring the mixture at the temperature of 62 DEG C, wherein the volume ratio of hexamethyldisilazane to the citric acid solution is 1:(15-17); dropwise adding an isomeric alcohol ethoxylate solution into the mixture, conducting stirring processing on the mixture at the temperature of 55 DEG C, and lowering the temperature to a normal temperature so as to obtain the novel acidic dye-fixing agent. According to the preparing method of the novel acidic dye-fixing agent for seamless underwear and the prepared dye-fixing agent, the dye-fixing agent is free of formaldehyde, excellent in color fixation effect, and very strong in alkali resistance and high temperature resistance; the dye-fixing agent has no influence on bright hues of reactive dyes; the dye-fixing agent is free of color change, has no influence on chlorine fastness, light fastness and perspiration fastness of dye materials, is green and environmentally friendly, and is suitable for industrialized production.

The invention relates to a preparation method and an apparition of a wet rubbing fastness improver containing copper microcapsules. The preparation method comprises the following steps: (1), silane modified ultrafine copper nanopowder is prepared; (2), the ultrafine copper nanopowder is ground and dried to constant weight; (3), the dried ultrafine copper nanopowder, 2,2'-azodiisobutyronitrile, divinyl benzene, butyl acrylate, methyl methacrylate and distilled water are mixed uniformly, tricalcium phosphate is added, and the mixture is subjected to ultrasonic vibration to obtain a dispersing liquid; (4) the dispersing liquid is placed into a flask with four necks to be subjected to heating, micro-suspension polymerization, heating and curing, and a product is washed with excessive hydrochloric acid solution and then washed to neutral to obtain the wet rubbing fastness improver containing the copper microcapsules. The prepared wet rubbing fastness improver containing the copper microcapsules can improve the wearability of fabric dyed with reactive dye, and the preparation method has the characteristics of simplicity, low cost, little time and labor investment, low toxicity of synthetic raw materials and reduction of environmental pollution.

The invention discloses an environment-friendly type synthetic tannin color fixing agent as well as a preparation method and application thereof. The color fixing agent is a synthetic tannin color fixing agent prepared from the following raw materials in percentage by mass: 15-30% of a phenol compound, 10-30% of an aromatic sulfonic acid compound, 1-5% of a catalyst, 5-15% of a formaldehyde solution, 0.5-2% of a chelating agent, 0.5-3% of a modifier, 1-4% of a dispersant and the balance of water. When being applied to color fixation of chinlon and blended fabrics, the synthetic tannin color fixing agent disclosed by the invention has the advantages of being good in acid resistance stability, small in color change, good in color fastness, and the like.

The invention discloses a preparation method of an environment-friendly acidic dye fixing agent. The method comprises the steps that: 1.5 parts of a dimethylamine aqueous solution is added into a four-neck reaction flask; nitrogen is delivered in for protection; stirring is started, and the temperature is increased to 30 DEG C; an epichlorohydrin solution is started to be dropped; dropping is finished within 1h, and the temperature is controlled at 55-60 DEG C; when epichlorohydrin adding is finished, a reaction is allowed for 2h under maintained temperature; 1.5 parts of butyl acrylate and 0.1 parts of a 30% potassium persulfate solution are dropped within 1h; the temperature is controlled at 80 (+ / - 3) DEG C, and a reaction is allowed for 3h; 1 part of a methacrylic acid solution is dropped within 1h; a reaction is allowed for 3h under a temperature of 85 (+ / -3) DEG C; the product is cooled to room temperature; and the pH value is regulated to 5-6 by using acetic acid, such that a light yellow transparent liquid is obtained. With the technical scheme provided by the invention, the process is easy to apply in production. After treatment, silk fabric has good color fixing effect, and is prevented from fading after washing.

The invention relates to a preparation method and the application of an ecological copper wet rubbing fastness improver. The method comprises the following steps: (1) preparing copper superfine powder modified by C12 alkyl sulfonate; (2) grinding and drying the copper nano superfine powder until the weight is constant; (3) uniformly mixing the dried copper superfine powder with butyl acrylate, methyl methacrylate and emulsifier n-hexadecane, adding a sodium dodecyl benzene sulfonate emulsifier water solution, uniformly stirring, and then performing ultrasonic dispersion in a water bath with the temperature of 0-4 DEG C for 200s to obtain a corresponding emulsion; (4) putting the emulsion into a four-neck flask, raising the temperature to 70 DEG C, adding a potassium persulfate initiator, and then reacting for 5-6 hours to obtain the ecological copper micro-capsule type wet rubbing fastness improver. The wearability of reactive dyeing fabric is improved, and the method has the characteristics that the method is simple, the cost is low, the time input and the human input are low, synthetic raw materials are low in toxicity, and the environmental pollution is reduced.

The invention discloses an oil-removal uniform-dyed composite emulsifier and application thereof, aiming at solving the problems that an oil removing agent and a uniform dyeing agent are added in the existing oil removal and dyeing-bathing process, and improper oil removing agent influences the colored light of dyeing, uniformity of dyeing and high temperature dispersing performance of dyes. The composite emulsifier is prepared by compositing the following components in parts by weight: 180 to 220 parts of pentaerythritol polyoxyethylene polyoxypropylene aliphatic ester, 40 to 60 parts of 1, 4-fat glycol terephthalate, 80 to 100 parts of a biomass surfactant, and 20 to 60 parts of sodium diethylhexyl sulfosuccinate. According to the composite emulsifier, the surface tension of a solution can be obviously reduced, the emulsifying effect on brown oil on a fabric is good, the dye dispersing performance, uniformity, migration capacity and dyeing rate are outstanding, the influence on colored light of the fabric is slight, and the one-time dyeing success rate and the reproducibility can be improved.

The invention discloses a poly-dimethylallyl (2-benzoyl-5-n-butoxypolyethylene phenyl) ammonium bromide synthesis method and a dye-fixing agent. According to the method, a molecule is acquired by the aid of a chemical synthesis mode and contains reactive groups, quaternary ammonium salt groups, ultraviolet absorbing groups, benzophenone groups and double-bond groups, the double-bond groups are polymerized to obtain a macromolecular compound containing more than two functional groups, a structure of a synthesis substance is represented, and the macromolecular compound is used for the dye-fixing agent (dyeing and finishing additive) of reaction dye dyeing processes. The dye-fixing agent saves energy, reduces emission and consumption on section of dye-fixing processes, sunlight fastness and ultraviolet protection factors of dyed fabrics can be improved, a common commodity dye-fixing agent does not have the performance, the comprehensive dye-fixing effect of the dye-fixing agent reaches or is superior to that of the commodity dye-fixing agent, so that the dye-fixing agent has high practical values and can be effectively applied to enterprise production.