42results about How to "Guaranteed color stability" patented technology

The invention belongs to the technical field of simulation light sources, and particularly relates to a solar spectrum and black-body radiation spectrum simulation system based on a quantum dot LED. The system comprises a light source module, a light dimming system, a focusing lens, a light mixer and a light distribution lens group, wherein the light source module comprises K monochromatic light quantum dot LED light sources or ultraviolet LED light sources with different peak wavelengths; the focusing lens converges monochromatic light to the light mixer at the public focal point of the focusing lens, and the light mixer mixes the monochromatic light into simulated sunlight or simulated black-body radiation light within the wavelength of 200-1,200 nm; and finally, the monochromatic light is emergent through the light distribution lens group. According to the solar spectrum and black-body radiation spectrum simulation system, during synthesis of a target spectrum, under an ideal implementation condition, the association coefficient r of synthesized light and the target spectrum within 400-730 nm is greater than 0.99, and the color temperature deviation delta CCT is less than 100 K; and generally, the developing index Ra is greater than 98, the special developing indexes from R1 to R15 are all greater than 96, and the color tolerance difference SDCM is less than 1.

The invention discloses a two-component colorful flexible polysulfide ammonia ester sealant and a preparation method thereof. The sealant consists of a component A and a component B; expressed by weight part, the component A is prepared from 15 to 60 parts of PSU type liquid rubber, 10 to 30 parts of a plasticizer, 10 to 60 parts of a filler, 0.1 to 5 parts of a tackifier, 0.1 to 5 parts of an antiager and 0.1 to 5 parts of a premature vulcanization retarder; the component B is prepared from 10 to 40 parts of a vulcanizing agent, 0.1 to 5 parts of a vulcanization accelerator, 10 to 50 parts of a plasticizer, 1 to 20 parts of a colorant and 10 to 50 parts of a filler; the mass ratio of the component A to the component B is 5 to (15 to 1). The component A and the component B are respectively ground to be pasty and then are mixed uniformly, thus obtaining a product. The product is stable in storage, excellent in physical and mechanical properties, and easy to blend into multiple colors, and the defect of color singleness of an existing flexible sealant is overcome.

This invention discloses ivory yellow unfired pottery decoration daily service fine ceramics. The unfired pottery components weight parts is that quartz 22-24 parts, feldspar 11-13 parts, kaolinite powder 9-11 parts, desilting kaolin 13-15 parts, kaolin 4-6 parts, kaolinite 23-25 parts, cohesive soil 4-6 parts, bentonite 1-3 parts, ivory yellow porcelain unfired pottery powder 4-6 parts, ivory yellow cog mud 3-5 parts, vanadium zirconium yellow pigment 0.12-0.65 part. It's forming and burning technique is same to normal high temperature fine ceramics, calcining temperature is 1280-1350 degrees C. Pure iron and titanium compound in natural ceramics material can present porcelain capability and yellow color capability in high temperature. This capability is used in this invention, and yellow, pale yellow and faint yellow color can be made by using synthetic dyestuff and its natural characteristic.

The invention discloses a production method of 4, 4 '-diaminodiphenyl ether, and relates to the technical field of aromatic nitro compound hydrogenation synthesis. According to the production method of the 4, 4 '-diaminodiphenyl ether, firstly, trace oxygen dissolved in the solvent is discharged by adopting a vacuum-pumping solvent evaporation method, and the problem that residual oxygen in the solvent cannot be replaced by only using nitrogen is solved, so that hydroxylamine benzene and azobenzene oxidation in the nitro hydrogenation process is inhibited, the darkening of the product color is avoided, and the product quality is improved. The impurity amount is increased; secondly, a specific inert poor solvent is adopted for crystallization, on one hand, side reaction of the amino compound and the solvent can be prevented, on the other hand, the inert solvent can crystallize and separate out the product from the reaction solvent, but the reaction impurities are reserved in the solvent, and therefore the purity of the product is improved; in addition, the addition of the reducing agent can prevent extremely trace oxygen free radicals in the solvent and nitrogen from oxidizing amino to influence the product color so as to ensure the color stability of the amino compound.

The embodiment of the invention provides an image processing method and device and a device for image processing. The method comprises the following steps: acquiring a first texture image corresponding to a first face image and a second texture image corresponding to a second face image; performing fusion processing on the first texture image and the second texture image based on a first dynamic mask to obtain a fused texture image, the first dynamic mask being used for indicating a to-be-fused region in the first face image; and rendering the second face image based on the fused texture image to obtain a target face image. According to the embodiment of the invention, the fusion region of the image can be limited within an effective range, and the face boundary of the preset to-be-fused region is fitted, so that the accuracy of face fusion is improved; and moreover, according to the embodiment of the invention, the color stability and authenticity of the generated target face image can be ensured, and the image quality of the generated target face image is improved.

The invention provides a color-spun polyester-viscose fabric and a production method thereof. Four-time continuous hair grabbing is adopted in hairiness grabbing and shearing, one-time hairiness shearing is realized, integral molding is realized, the production efficiency is improved, relatively large tension force is used in the first-time hairiness grabbing to facilitate quick fuzzing, relatively small tension force is used in the second-time and third-time hairiness grabbing to avoid damaging the fabric surface, grabbed hairiness is denser and more uniform, relatively large tension force isused in the fourth-time hairiness grabbing to comb the grabbed hairiness so as to facilitate subsequent hairiness shearing, hairiness grabbing and shearing are uniform through control of the tensionforce in the four-time hairiness grabbing, the fabric is good in wool-like effect, is fluffy and soft in hand feel and is resistant to fuzzing and pilling, difficult in hair slip, good in water washing appearance, comfortable to wear and excellent in antistatic property, the method is advanced and reasonable in processing flow, the product quality is stable, the method is simple and reliable, is high in production rate, short in period and high in color fixation rate and reduces sewage discharge from the perspective of energy saving and environmental protection, the product quality can be improved, and the fabric is good in quality sense and excellent in market economic benefit.

The invention relates to a soaping method for improving the post-treatment effect of fibers dyed with reactive dyes, comprising the following steps: (1) obtaining fibers dyed with reactive dyes; (2) adding water and a soaping agent to the fibers, and then raising the temperature Carry out soaping: when described reactive dyestuff is low substantivity reactive dyestuff, the temperature T of described soaping 1 100℃<T 1 <110°C; when the reactive dye is a medium direct reactive dye, the soaping temperature T 2 110℃≤T 2 ≤120°C; when the reactive dye is a highly direct reactive dye, the soaping temperature T 3 120℃<T 1 ≤130°C. The soaping method can effectively remove the floating color in the fiber dyed with reactive dyes of different directness, improve the color fastness and color stability of the fiber, reduce the number of washings in the post-treatment of the fiber, shorten the post-treatment process, and reduce the Reduce water consumption and energy consumption, and reduce post-treatment costs as a whole.

The invention discloses a compound for rapid detection of malachite green by direct-reading color development and its application, belonging to the fields of food detection and analysis and environmental monitoring. The preparation method of the complex comprises: (1) preparing a titanium alkoxide solution; (2) utilizing suction filtration to make the filter membrane saturated to absorb the titanium alkoxide solution; (3) preparing a potassium iodate-colloidal silver mixed solution; (4) Using suction filtration, the potassium iodate-colloidal silver mixed solution is passed through the filter membrane of the saturated adsorption titanium alkoxide solution prepared in step (2), and the one-step sol-gel reaction generates potassium iodate-Ag / nano-titanium dioxide composite. The present invention uses potassium iodate-Ag / nano-titanium dioxide composite as a color developing agent to detect malachite green in aquatic products or environmental water bodies. The present invention uses potassium iodate / Ag@nano-titanium dioxide composite as a color developing agent to provide a good color developing base material to ensure the stability of color development; while the sensitivity of color development is improved, the time used for color development is also greatly improved reduce.