15 results about "Color strength" patented technology

The invention discloses a knitted fabric defect detection method and system based on a visual model, and relates to the technical field of defect detection, and the detection steps are as follows: S1, based on the surface color intensity of a to-be-detected knitted fabric, adaptively adjusting the light source intensity, and reducing fabric reflection; s2, acquiring image data of the knitted fabric to be detected based on a camera, preprocessing the image data and then integrating the image data into a data set; s3, extracting shallow-layer, middle-layer and deep-layer features of the preprocessed image based on a multi-scale convolutional neural network; and S4, performing weighted fusion on the multi-scale features by using an attention mechanism, and learning feature distribution of normal textures through an auto-encoder. By enhancing sensitivity to fine defects, judging defects based on composite errors, accurately classifying and positioning, and reducing misjudgment, the method provides a basis for quality evaluation and automatic repair, reduces labor cost, improves quality inspection efficiency, and is suitable for efficient quality inspection scenes of various knitted fabrics.

The invention relates to the field of ceramic ink, and discloses a black pigment, ceramic ink prepared from the black pigment and a preparation method of the ceramic ink. The high-tinting-strength cobalt black pigment is prepared by adopting cobalt nitrate, nickel nitrate, chromic nitrate and ferric nitrate according to the molar ratio of 38: 6: 31: 25, co-precipitating, drying to obtain powder, and calcining at the temperature of 1100-1200 DEG C to obtain the high-tinting-strength cobalt black pigment. The ink prepared from the high-tinting-strength cobalt black pigment prepared by the preparation method disclosed by the invention is pure in hue and strong in tinting strength, is particularly suitable for producing dark-color ceramic tile layout products such as black golden flowers and the like, and can well solve the problem that the black color is not pure enough.

The application discloses a kind of based on bimetallic nanometer enzyme paper-based colorimetric detection mycotoxin method and application, method includes first preparing bimetallic nanometer enzyme UiO66-NH2@Pt / Pd, then nucleic acid aptamer modified UiO66-NH2@Pt / Pd is loaded on paper-based chip, different mycotoxin concentration sample is added dropwise to carry out reaction, then add color developing agent containing TMB and H2O2 and carry out color developing reaction, utilize smart phone to identify color intensity and obtain RGB value, select the linear curve of the highest fitting degree between mycotoxin concentration and RGB value as mycotoxin detection standard curve, then according to the RGB value of measured sample, the content of mycotoxin is detected.The method of the application has the advantages of low cost, simple operation, rapid response, strong anti-interference ability, wide detection range, can be used for on-site detection, etc., can be applied to detect the residue of mycotoxin in environment and food.

The application discloses a kind of green display photoresist color paste with dimer phthalocyanine dye and its synthesis method, the synthesis method includes the following steps: (1) coupling reaction: using phthalic dinitrile and binary alcohol, binary acid or binary ester coupling reaction occurs, after treatment, get bridging intermediate B;(2) cyclization reaction, using zinc salt and bridging intermediate B and functional phthalic dinitrile cyclization reaction occurs, after treatment, get dimer phthalocyanine dye compound C.The application provides a new type of dimer phthalocyanine dye molecule, which can be used for the preparation of green display photoresist color paste, and the heat resistance and light resistance are obviously improved compared with monomolecular dye color paste.In addition, the dimer phthalocyanine dye color paste of the application has high transmittance, high contrast, good dispersibility, color strength and other advantages.

Pigment preparation of bismuth vanadate consisting of at least one pigment and at least one high molecular weight dispersing additive soluble in water and solvents.

The invention discloses a novel high-light-transmittance, high-tinting-strength and high-paint-adhesion color-developing and light-transmitting automotive interior and exterior light-emitting component and a preparation method thereof. The novel high-light-transmittance, high-tinting-strength and high-paint-adhesion color-developing and light-transmitting automotive interior and exterior light-emitting component mainly comprises the following raw materials in percentage by weight: 57-85% of polypropylene resin, 5-20% of high-light-transmittance filler, 10-20% of benzene sulfonate grafted SEBS polymer, 0.05-0.5% of anionic organic dye, 0.1- The core of the invention is that through molecular design, benzene sulfonate containing quaternary ammonium salt cationic groups is grafted on an SEBS polymer chain, so that the benzene sulfonate is combined with anionic dye through strong electrostatic interaction, and molecular-level dispersion and anchoring of the dye are realized; the problems of poor dispersity, easy migration, uneven tinting strength, poor weather resistance and the like of the dye in the light-transmitting polypropylene matrix in the traditional physical blending are fundamentally solved; the color developing substrate has the advantages of high light transmission and high tinting strength, and also can be endowed with a bright color effect.

This invention provides a disperse dye composition, a disperse dye, a method for preparing the same, and its uses. The disperse dye composition provided by this invention exhibits excellent colorfastness and color strength. The disperse dye composition comprises the following components: component A as shown in formula (I); in formula (I): X represents a halogen; component B as shown in formula (II) and / or formula (III); component C as shown in formula (IV); component D as shown in formula (V); and component E, wherein component E is selected from one or more combinations of the following formulas (VI) to (VII): in formula (VII): X1 represents -H, -Cl, or -Br; R1 represents -H or -NHCOCH3; R2 and R3 each independently represent -CH2COOCH3, -CH2C6H5, or -C2H4COOCH2COCH3.

The invention belongs to the technical field of coating ink-jet ink, and discloses high-moisture-retention water-based coating ink as well as a preparation method and application thereof. The high-moisture-retention water-based paint ink is prepared from the following components in parts by mass: 5 to 20 parts of a water-based solvent, 15 to 30 parts of resin, 20 to 40 parts of color paste, 5 to 20 parts of a low-viscosity humectant, 0.1 to 1 part of a surfactant and 5 to 50 parts of water. The low-viscosity humectant provided by the invention is good in performance, has water solubility and moisture retention, and can reduce the moisture volatilization speed in the printing process, protect a spray head from being wet and not dry up and prevent the spray head from being blocked. The viscosity of the ink system can be adjusted while the moisture retention is improved, ink droplets can be sprayed out uniformly due to the proper viscosity, and the color intensity and uniformity are improved. The prepared ink is bright in color and smooth in ink jet, and can be stably stored for a long time.

The invention discloses a supercritical carbon dioxide anhydrous decoloration system and method for polyester fabrics, which utilizes supercritical carbon dioxide fluid to replace traditional water media and chemical solvents to realize efficient decoloration treatment of the polyester fabrics, and avoids the problem of wastewater pollution and the use of harmful chemical solvents. And meanwhile, the supercritical carbon dioxide fluid can be recovered and reused after being decolored, so that efficient utilization of resources is realized. After decolorization, the color intensity deviation sigma K / S of the polyester fabric is less than or equal to 0.20, the decolorization rate is more than or equal to 95%, the breaking strength loss rate is less than or equal to 10%, and the dye recovery rate is more than or equal to 85%. Besides, after the polyester fabric is decolored for more than 20 times, the decoloring efficiency can still be kept to be greater than or equal to 95%, the stability and the economical efficiency are ensured, the efficient decoloring of the polyester fabric is realized, the method has the advantages of simple process, high environmental protection property, small fiber damage and the like, and the problems of high water consumption, high pollution, large fiber damage and the like in the decoloring treatment process of the polyester fabric are solved.

Methods for obtaining indigo dyed yarns with controlled ring dyeing are provided. Systems and devices for yarn indigo dyeing resulting in dyed yarns with homogenous color intensity are also provided.

This invention relates to the field of polymer material composition technology, and discloses a composite wax for engineering plastic masterbatch and its preparation process, comprising: eutectic melting of nonpolar polyethylene pyrolysis wax and polar oxidized polyethylene wax to construct a homogeneous eutectic system; maintaining a specific isothermal induction temperature to cause the nonpolar polyethylene pyrolysis wax to undergo phase transformation and precipitate into solid microcrystalline nuclei, while the polar oxidized polyethylene wax remains in a liquid state and impregnates and coats the surface of the solid microcrystalline nuclei to produce a microscopic core-shell precursor; and using a heat exchange molding unit to implement high-speed cooling, freezing the phase state to obtain a composite sheet with a core of pyrolysis wax and a shell enriched with oxidized wax. This invention utilizes the difference in crystallization kinetics to induce the directional evolution of the microstructure, solving the problem of uneven dispersion caused by the release of polar components, and directional enrichment of polar functional groups on the particle surface, providing interfacial adhesion, achieving efficient dispersion of pigments in the resin matrix, and improving color strength.

This invention relates to the field of C09D11 / 38 dispersants, and more specifically, provides an aqueous dispersant and its preparation method. The aqueous dispersant provided by this invention comprises: ethyl polyethylene glycol, tert-butyl polyethylene glycol, naphthyl polyethylene glycol, and deionized water. It can be adsorbed onto the surface of pigment particles through different anchoring groups, and further enhanced by steric hindrance groups, allowing the pigment particles to maintain a stable dispersion state while retaining low viscosity, thus improving the performance of the aqueous dispersant. Furthermore, it imparts excellent gloss and color strength to the pigment, making it suitable for industrial production.

A method for obtaining indigo-dyed yarn with controlled ring dyeing is provided. A system and apparatus for indigo dyeing yarn are also provided, which produce dyed yarn with uniform color intensity.

Described is a composition comprising: (a) a liquid organic medium compatible with water; (b) a mixed metal oxide ceramic pigment in particulate form exhibiting its full color intensity and / or hue after firing at elevated temperatures; and (c) a reaction product of at least reactant A, reactant B, and reactant C, as described herein; wherein substantially all of the single molecules of reactant C are reacted with one acid group present in reactant A to form an ester, and substantially all of the single molecules of reactant B are reacted with (i) one acid group present in reactant A to form an amide, or (ii) two acid groups present in reactant A are reacted to form an imide. Methods of making and using such compositions are also described.

The invention belongs to the technical field of color paste, and particularly discloses color paste for water-based cigarette packet ink and a preparation method thereof, the color paste comprises the following components by weight: 12-15% of a dispersant, 8-12% of a wetting dispersant, 28-35% of a pigment, 1-3% of glycerol monolaurate, 0.4-0.8% of an antifoaming agent, 1-2% of a humectant, 0.1-0.2% of a coupling agent, and the balance of water. The copolymer is obtained through reaction of N, N-methylene diacrylic acid amide, maleic acid mono-2-(methacryloyloxy) ethyl ester and (methyl) acryloyloxyethyl phosphate, the copolymer contains multiple curing groups, and through cooperation of the multiple curing groups, the copolymer can be effectively combined with active sites on the surface of the pigment, so that the curing effect of the pigment is improved. According to the present invention, with the application of the color paste, the steric hindrance effect can be effectively improved, the agglomeration force among pigment particles can be effectively reduced, the compatibility of the pigment in the system can be improved, and the stability and the coloring strength of the color paste can be improved.