34results about How to "Improve discoloration" patented technology

The invention discloses a bentonite-loaded nano silver antibacterial agent and a preparation method thereof. The preparation method comprises the following steps: carrying out acid treatment on bentonite to obtain acidification-modified bentonite; putting the acidification-modified bentonite into a dispersion stabilizer sodium polyphosphate water solution; adding a silver-ammonia solution and carrying out an illumination reaction to insert compound powder composed of nano silver and silver ammino ions into a bentonite sheet layer, so as to obtain the bentonite-loaded nano silver antibacterial agent. The grain diameter of the antibacterial agent compound powder prepared by the invention is 0.1-5 microns and the silver content is 0.1-15wt%; a bacteriostasis circle to colon bacillus and staphylococcus aureus is more than or equal to 10mm and the minimal inhibitory concentration is 10-200 micrograms / milliliter; the bentonite-loaded nano silver antibacterial agent is suitable for being used for preparing antibacterial plastic, antibacterial textiles, domestic chemical antibacterial materials and the like.

The invention relates the dispersing yellow dyes compound, comprising (I), (II) and (III) structures. The color fastness to sublimation of the dye is improved by three grades, and the dye, with dispersing blue 2BLN and dispersing red, produces many dyes with different colors. The invention solves the problem of phototropic, modifies the color alteration, and improves the rate of finished products. The dispersing yellow dyes can be directly used to dye.

The invention discloses a composite antioxidant self-microemulsion as well as a preparation method and application of the microemulsion, belonging to the field of preparations. The composite antioxidant self-microemulsion contains the following components in percentage by weight: 1%-4% of an oil phase, 10%-60% of a surfactant, 2%-50% of a cosurfactant and 1%-20% of a compound antioxidant, whereinthe compound antioxidant is a mixture of vitamin E, ferulic acid and resveratrol. Vitamin E, ferulic acid and resveratrol have different antioxidant mechanisms, are mutually complemented and repairedand are compounded, so that an anti-oxidation synergistic interaction effect can be achieved. By optimizing a self-microemulsion system, a proper oil phase, a proper mixed surfactant and a proper cosurfactant are screened and are utilized for dissolving vitamin E, ferulic acid and resveratrol in the compound antioxidant; and by regulating the proportion of the self-microemulsion system, the microemulsion with a particle size smaller than 70nm is obtained, the functional components of the microemulsion can be easily transdermally absorbed, and a very good anti-oxidation effect is achieved.

The invention discloses nylon with high color stability and a preparation method thereof, and belongs to the field of nylon material reinforcement. According to the nylon product disclosed by the invention, after the glass fiber is introduced as a reinforcing component, the product is modified by taking the cerium sulfide with a specific content as a pigment, so that the obtained nylon is firm in coloring, and the color change condition after moisture absorption is obviously improved; meanwhile, all the components have a synergistic effect, so that the heat resistance, the weather resistance and the stability of the obtained nylon are effectively enhanced, and the comprehensive performance is excellent. The invention also discloses the preparation method of the nylon, the preparation method is simple in operation steps, and industrial large-scale products can be realized.

The invention relates to a preparation method of a nano titanium dioxide modified polyacrylate coating agent with a core-shell structure. Firstly, an aluminum zirconium coupling agent and nano titanium dioxide are added to deionized water, and the mixture is stirred for a refluxing reaction for 30 min; deionized water, an emulsifier, an acrylate monomer and a nano titanium dioxide dispersion liquid are added to a reaction kettle, and the mixture is heated to 55-58 DEG C and stirred at a high speed to form an emulsified liquid; deionized water, the acrylate monomer and an emulsifier are added to an emulsification kettle and stirred at a high speed to form a pre-emulsified liquid; an initiator is dissolved in deionized water, and an initiator solution is prepared; after the temperature of the reaction kettle is increased to 65-68 DEG C, the initiator solution is added, and a thermal insulation reaction is performed for 1 h; the pre-emulsified liquid, crosslinking monomers and the remaining initiator water solution are dropwise added within 2 h, the mixture is subjected to a thermal insulation reaction at the temperature of 80 DEG C for 1 h after the pre-emulsified liquid, crosslinking monomers and the remaining initiator water solution are dropwise added, and cooling and filtration are performed.

The disperse red dye mixture with raised sublimation fastness consists of dye in the chemical general expression as shown in 5-95 wt%, and C.I. disperse red 343, C.I. disperse red 92 or C.I. disperse red 146 in 5-95 wt%. The disperse red dye mixture has sublimation fastness raised to Level 3, and may be compounded with disperse blue 2BLN and disperse yellow in the same sublimation fastness to form various kinds of marketable dyes with balanced sublimation fastness. It may be also used directly in dyeing.

The invention discloses an anti-discoloration laundry bag mesh bag and a laundry bag. The average pore size of this anti-tarnish laundry bag mesh bag is ≤117μm. At the same time, a laundry bag comprising the laundry bag net bag is also disclosed. The laundry bag of the invention can improve the contamination of other clothes by shedding fibers and dyes when the clothes are mixed and washed, thereby improving the discoloration of clothes of different colors after mixed washing, and the laundry bag can be used repeatedly.

The invention discloses an anti-corrosion, anti-discoloration and environment-friendly water-based magnesium alloy cutting fluid, which comprises the following components by weight percentage: 5-10 parts of base oil, 5-15 parts of oily agent, 10-25 parts of organic 5-15 parts of rust agent, 15-25 parts of functional polyether surfactant, 0.2-3 parts of extreme pressure additive, 3-8 parts of solubilizer, 0.1-2 parts of metal corrosion inhibitor, 0.1-2 parts of magnesium alloy anti-discoloration agent 0.1-2 parts of fungicide, 0.1-1 part of defoamer, 0.1-10 parts of pH regulator, and 15-30 parts of water. The invention has excellent anti-corrosion, lubricating and anti-hard water capabilities, good cleaning and cooling effects, and effectively improves several major problems in the process of magnesium alloy processing, such as corrosion, oxidative combustion, discoloration of magnesium alloys, and demulsification and delamination of cutting fluids. The technical problem is that the pH value is between 9-11, which better meets the requirements of the magnesium alloy cutting process.

The invention discloses a composite antioxidant self-microemulsion as well as a preparation method and application of the microemulsion, belonging to the field of preparations. The composite antioxidant self-microemulsion contains the following components in percentage by weight: 1%-4% of an oil phase, 10%-60% of a surfactant, 2%-50% of a cosurfactant and 1%-20% of a compound antioxidant, whereinthe compound antioxidant is a mixture of vitamin E, ferulic acid and resveratrol. Vitamin E, ferulic acid and resveratrol have different antioxidant mechanisms, are mutually complemented and repairedand are compounded, so that an anti-oxidation synergistic interaction effect can be achieved. By optimizing a self-microemulsion system, a proper oil phase, a proper mixed surfactant and a proper cosurfactant are screened and are utilized for dissolving vitamin E, ferulic acid and resveratrol in the compound antioxidant; and by regulating the proportion of the self-microemulsion system, the microemulsion with a particle size smaller than 70nm is obtained, the functional components of the microemulsion can be easily transdermally absorbed, and a very good anti-oxidation effect is achieved.

The invention discloses a preparation method of a novel fluorescent acidic color fixing agent and the prepared color fixing agent. During preparation, the method comprises the following steps: carrying out mixing, heating and stirring treatment on bisphenol S and a dimethylacetamide solution, then adding hexamethyldisilazane, cooling to 70 DEG C, and carrying out stirring treatment, wherein the mass ratio of the bisphenol S to hexamethyldisilazane is (25 to 35): (2 to 6), and the volume ratio of the hexamethyldisilazane to the dimethylacetamide solution is 1: (10 to 12); then adding an acrylic acid solution, and carrying out stirring treatment at the temperature of 65 DEG C, wherein the volume ratio of the hexamethyldisilazane to the acrylic acid solution is 1: (10 to 11); then dripping a glycol dimethyl ether solution, carrying out stirring treatment at the temperature of 60 DEG C, wherein the adding amount of the glycol dimethyl ether solution is 33 to 35 percent of the mass of the bisphenol S, and cooling to room temperature to obtain the novel fluorescent acidic color fixing agent. The novel fluorescent acidic color fixing agent disclosed by the invention can greatly improve the color fastness of a fluorescent dye, so as to obviously improve the color change. The preparation method is simple, and the preparation process is fast, high in controllability and high in yield, and favorable for popularization and application.

The invention provides an antimicrobial compatibilizer masterbatch suitable for the production of downstream inorganic filler modified PP and its preparation method and application. Through the adjustment of the preparation process parameters, the compatibility of inorganic fillers in the production of downstream filler modified PP plastics can be solved at the same time. The problem of antibacterial properties and the uniformity of antibacterial content, as well as the discoloration problem caused by the silver ion antibacterial agent in the compatibilizer masterbatch; the inorganic filler modified PP can be used in the production of vehicle plastic parts.

The invention relates the dispersing yellow dyes compound, comprising (I), (II) and (III) structures. The color fastness to sublimation of the dye is improved by three grades, and the dye, with dispersing blue 2BLN and dispersing red, produces many dyes with different colors. The invention solves the problem of phototropic, modifies the color alteration, and improves the rate of finished products.The dispersing yellow dyes can be directly used to dye.

The invention relates to the field of leather processing, in particular to a fur retanning technology for preventing leather fading. Pollution-free leather with few defects is subjected to water removal treatment; by mass percent, 100-120 parts of leather and 200-300 parts of water are added in a drum, 0.6-1.8 parts of acid proteinase and 0.5-1.4 parts of polyethoxylated fatty alcohols are added,organic acid is used for adjusting the solution pH value to 2-5.5, and 150-200 parts of water and 0.5-1.5 parts of dye are added; and after rotation is conducted for 10-20 min, 2-8 parts of glyoxal, 0.3-0.8 part of tween 80, 1.5-5 parts of protein filler and 3-8 parts of a boron-containing fading preventing retanning agent are added, uniform dissolving is conducted after rotation is conducted for10-20 min, the temperature is controlled to range from 40 DEG C to 50 DEG C, and after rotation is conducted for 80-120 min and water is drained, the retanning procedure can be finished.