31results about How to "Does not affect color rendering" patented technology

The invention relates to an efficient accurate continuous measurement method for lead and zinc in lead concentrate and gold concentrate, in particular to a continuous measurement method for lead and zinc in ore analysis. A saturated nitric acid-potassium chlorate solution is used for decomposing samples, PbSO4 deposit is formed by H2SO4 and Pb and separated from the zinc, and the deposit is dissolved by an acetic acid-sodium acetate buffer solution and used for measuring the content of the lead. After the influence of interference elements on filtrate is eliminated by a chemical masking method, the total quantity of the zinc and cadmium is measured by an EDTA (ethylene diamine tetraacetic acid) volumetric method, and the content of the cadmium is measured by atomic absorption and subtracted from the total quantity to obtain the content of the zinc. The efficient accurate continuous measurement method has the advantages that experimental accuracy can be improved, experimental procedures are simplified, operation is facilitated, mass operation of the samples can be realized, and working efficiency is improved.

The invention discloses a preparation method of red silica-clad type cerium sulfate ceramic pigment. The preparation method comprises the following steps: by taking cerium sulfate, tetraethylortho silicate, ammonium water, polyvinylpyrrolidone and the like as raw materials, preparing the red silica-clad type cerium sulfate ceramic pigment by adopting a liquid phase method. Due to the existence of a silica cladding layer, the high-temperature stability of the clad type cerium sulfate ceramic pigment can be enhanced, and the method has the advantages of being less in the loss of a developing body, compact in pigment cladding layer, high in cladding rate, simple and convenient in preparation processes, free from high-temperature treatment and the like.

The invention discloses a white LED lamp color temperature and luminous flux continuous adjusting method, which comprises the following steps: firstly placing two UVLED chips A and B at the center of a lamp barrel coated with trichromatic phosphor; and respectively adjusting the luminous intensity of the two UVLED chips for the excitation of the trichromatic phosphor so as to realize the continuous adjusting of the color temperature and the luminous flux, wherein the wave length of the ultraviolet light emitted by the UVLED chip A is a nm, the wave length of the ultraviolet light emitted by the UVLED chip B is b nm, the lights with the wave length respectively being a nm and b nm are all within the ultraviolet light waveband, and a is not equal to b. In addition, the trichromatic phosphor must satisfy the following requirements: green powder has the same adsorption and emission intensity to the lights with the wave length respectively being a nm and b nm; blue powder is strong in adsorbing the light with the wave length being b nm, and is weak in adsorbing the light with the wave length being a nm; and red powder is strong in adsorbing the light with the wave length being a nm, and is weak in adsorbing the light with the wave length being b nm, wherein the lights with the wave length respectively being a nm and b nm are all within the ultraviolet light waveband.

The invention relates to a fluorescent microsphere combined detection device for a cardiac marker and a preparation method of the fluorescent microsphere combined detection device, and belongs to thefield of medical detection equipment. A sample pad, an immunofluorescent antibody glass fiber membrane, a nitrocellulose membrane and an absorption pad respectively adhere to a plastic plate, the twoends of the nitrocellulose membrane are respectively overlapped with the absorption pad and the immunofluorescent antibody glass fiber membrane, the other end of the immunofluorescent antibody glass fiber membrane is overlapped with the sample pad, the nitrocellulose membrane is provided with a first detection line T1 with a solid-phase high-specificity MPO antibody, a second detection line T2 with a solid-phase high-specificity cTnI antibody, a third detection line T3 with a solid-phase high-specificity NT-proBNP antibody, a fourth detection line T4 with a solid-phase high-specificity D dimerantibody and a quality control line C; and a goat anti-mouse IgG polyclonal antibody is sprayed on the quality control line C. The fluorescent microsphere combined detection device for the cardiac marker has the advantages that the sensitivity and the specificity of reaction are effectively improved, the use amount of immune microspheres can further be reduced under the same threshold value, thecost is saved, and the device is simple and convenient to operate and high in practicability.

The invention relates to the technical field of optical illumination, in particular to a preparation method of a screen protection film and a corresponding screen protection film. The method at least comprises the following steps of 1, adding bonding agents and ultraviolet / blue light absorption agents into a first organic solvent to obtain surface paint; 2, coating the surface paint onto the surface of a polyester film to form a coating; curing the coating to obtain a base film; 3, respectively compounding release films on the two sides of the base film to obtain the screen protection film. The method provided by the invention has the advantages that the single addition of acrylic ester bonding agents is not needed; the obtained protection film has good absorption performance on ultraviolet light and blue light; meanwhile, most visible light can be transmitted; in addition, the final product is white; the color developing performance is not influenced.

The invention discloses a color-changable architectural decorative diatomite dry powder coating and a preparation method thereof. The diatomite dry powder coating is prepared by the following steps: a, mixing crystal violet lactone, bisphenol A, with higher fatty alcohol to obtain a complex color developing agent; b, adding an emulsifier into the complex color developing agent, homogenizing, and shearing, to obtain a complex emulsion; c, adding the precursor liquid of hydroxypropyl-beta-cyclodextrin capsule and a dispersing agent into the complex emulsion to prepare a transparent microcapsulewrapped with the color developing agent; and d, uniformly mixing the transparent microcapsule with diatomite, inorganic fillers, rubber powders and auxiliary agents, to prepare color-changable architectural decorative diatomite dry powder coating. The method has the following advantages: through adopting hydroxypropyl-beta-cyclodextrin to wrap the complex color developing agent to prepare the transparent microcapsule, the coating formed by construction is uniform in color distribution. The transparent microcapsule is used to wrap and protect the developing agent, without affecting color development, and the color-changable architectural decorative diatomite dry powder coating effectively prolongs the service life of the color developing agent, has a wide temperature range of thermosensitive color change, and has a good decorative effect at the same time.

The invention relates to a rare earth sulfide and / or rare earth sulfur oxide colorant and a preparation method thereof. A rare earth compound, sulfur, an alkali metal compound, solid carbon and an auxiliary agent are used as raw materials, an initial product of the rare earth sulfide and / or rare earth sulfur oxide colorant is obtained by roasting, water is added to the initial product, then an alkaline compound is added to adjust pH, a treated colorant solid is obtained, an alcohol-water mixed solution is added to the treated colorant solid, then ammonia, PVP, a zinc compound, ethyl orthosilicate and sodium silicate are added for treatment, and washing and drying are carried out to obtain the rare earth sulfide and / or rare earth sulfur oxide colorant. The preparation method has mild reaction conditions, simple operation, low cost, and high production efficiency. The rare earth sulfide and / or rare earth sulfur oxide colorant prepared by the method has stable product performance, high saturation, stable chromaticity, and good particle size uniformity.

The invention discloses a coating liquid, and particularly relates to a polyurethane coating liquid composed of the following raw materials in parts by weight: 30 to 50 parts of water-based polyol resin, 5 to 12 parts of a water-based curing agent, 100 to 200 parts of a nano silver wire dispersion liquid, 0.5 to 5 parts of 16-sulfydryl hexadecane-1-ol, and 50 to 100 parts of a diluent. Meanwhile, the invention also discloses a paint surface protection film and a preparation method of the paint surface protection film. The water-based polyol resin and the water-based curing agent in the coating liquid are matched with silver nanowires (namely infrared reflection particles) in the silver nanowire dispersion liquid, and an obtained polyurethane coating layer can reflect part of infrared rays in sunlight. Therefore, the technical problem that the polyurethane coating liquid has an infrared reflection effect is solved. When a base material (such as an automobile paint surface protective film) is coated with the coating liquid, part of infrared rays in sunlight can be reflected, and the coating liquid has good infrared reflection durability.

The invention relates to transparent back glue used for a double-face color development hot stamping foil and solves a problem of influence on color development on the last one coating due to poor transparency of a coated back glue layer in the prior art. The transparent back glue includes, by weight, 5-18 parts of aqueous polyurethane resin, 5-10 parts of aqueous rosin-modified phenolic resin, 0-10 parts of aqueous amino resin, 0.1-0.5 parts of a defoamer, 0.5-2 parts of a film-forming aid, 0-2 parts of a wetting agent, and 60-120 parts of deionized water. The transparent back glue is free of addition of fumed silica powder into the glue material during usage, and has high transparency and good cutting property.

The invention is applicable to fluorescent lighting, and provides a fluorescent lamp and a method for adjusting color temperature and luminous flux of the fluorescent lamp. The fluorescent lamp comprises a lamp housing, fluorescent powder, a first discharge lamp, a second discharge lamp and a voltage adjusting device, wherein the fluorescent powder is coated on the inner surface of the lamp housing; the first discharge lamp and the second discharge lamp are arranged in the lamp housing; the voltage adjusting device is connected with the first discharge lamp and the second discharge lamp respectively; and the fluorescent powder is three-primary-color fluorescent powder. The method comprises the following steps of: generating first exciting light and second exciting light by the first discharge lamp and the second discharge lamp in the lamp housing of the fluorescent lamp; and adjusting intensities of the first exciting light and the second exciting light through the voltage adjusting device so as to adjust the color temperature and the luminous flux of the fluorescent lamp respectively. By adopting the method, the color temperature and the luminous flux of white light emitted by the fluorescent lamp are adjusted in wide ranges, meanwhile, luminous efficiency and color rendering property of the fluorescent lamp are not influenced, and the fluorescent lamp is suitable for various occasions.

The invention belongs to testing technology of semiconductor silicon, especially relates to a coloration solvent for testing grade abandoned silicon. Its density is composed of 48-50% hydrogen fluoride solution, 68-72% nitric acid, 98-99% acetum and pure water, which are matched with the following volume ratio: hydrogen fluoride solution: nitric acid: acetum: pure water=1:3:6-9:4-6. Coloration solvent prepared using this method can separate low-density impure qualified materials from high-density impure heavy doped materials quickly without testing silicon one by one manually, which improves grading efficiency and accuracy, saves costly investment in testing apparatuses and reduces production cost.

The invention discloses a protein chip sample point quality control and tracing method which comprises the following steps: preparing a sample application buffer solution, wherein the sample application buffer solution consists of ponceaux, glycerin, Na2CO3, NaHCO3 and deionized water; manufacturing a protein chip, namely diluting a substance to be subjected to sample application to a working concentration and performing the sample application on a solid-phase substrate by adopting the sample application buffer solution, so as to obtain the protein chip; and performing image analysis, namely observing the roundness and uniformity of the sample point subjected to the sample application by adopting image software or naked eyes. A ponceaux dyeing agent is added into the sample application buffer solution, so that the buffer solution presents red, the substance to be subjected to the sample application is diluted by using the buffer solution, and the sample application is performed on the solid-phase substrate, so that a sample point on the protein chip can be observed and analyzed through the image software or naked eyes before being used. The method can serve as a quality control method during protein chip batch production.

The invention discloses a bacterial colony chromogenic medium capable of achieving autoclaved sterilization and the preparing method and application thereof. Each liter of the medium contains 23.5 g market plate count agar, 0.005-0.015 g sucrose fatty acid ester SE-11 and 0.005-0.015 g 2,3,5-triphenyltetrazolium chloride. The medium can be used for measuring the number of bacterial colonies in food and food additives, bacterial colonies are red or light red, boundaries are clear, bacterial colony color development is obvious, counting is easy, and the medium can be popularized to actual testing to facilitate reagent testing.

The invention provides a heat-sensitive recording composite material and a production process thereof. The heat-sensitive recording composite material sequentially comprises a carrier, a middle coating and a thermosensitive recording layer, wherein a protective layer is arranged on the thermosensitive recording layer, and the protective layer is a BOPET film. According to the heat-sensitive recording composite material and the production process thereof, the BOPET thin film with the special performance is used for protecting a heat-sensitive color developing layer, solvent resistance, scratchresistance and the like are obviously improved, the production process is simplified, and production cost is greatly reduced.

The invention relates to integrated self-amplification indirect competitive immunochromatography test paper. The test paper comprises a supporting layer, an adsorption layer and a protective layer, wherein the adsorption layer and the protective layer are fixed on the supporting layer; the adsorption layer sequentially comprises a sample pad, a conjugate pad I, a conjugate pad II, a cellulose membrane layer and a water absorption material layer which is located at a handle end, wherein the sample pad, the conjugate pad I, the conjugate pad II and the cellulose membrane layer are sequentially distributed from a test end; a detection line and a quality control line are sequentially arranged on the cellulose membrane layer; and the conjugate pad I adsorbs a target monoclonal antibody, and the conjugate pad II adsorbs an artificial antigen marked by a nanometer material and biotin marked by the nanometer material. According to the test paper, the antibodies do not need to be marked, protective liquid is added and dried on the conjugate pad I, folding and damage of the antibodies in the antibody marking process are avoided, and the antibody dosage can be accurately controlled; and the nano-particle labeled artificial antigen is used as a probe, and each antibody intercepted on the detection line can be accurately combined with two labeled antigens, so that signal self-amplification is realized, and the sensitivity of the immunochromatography test paper is higher.

The invention provides a combined determination method of chlorophyll content and proline content, and the method comprises the following steps of extraction of chlorophyll and proline: chopping and placing the leaves in 95% ethanol for immersion in the dark for 12 to 72 hours, and filtering the mixture by gauze to obtain a filtrate; determination of chlorophyll content: diluting the extract N times with 95% ethanol, uniformly mixing and pouring the diluted extract into a cuvette, and measuring the absorbance at wavelengths of 665nm, 649nm and 470nm by using the 95% ethanol as a blank; and determination of proline content: adding the obtained extract with glacial acetic acid and an acidic ninhydrin solution, heating in a boiling water bath, performing color comparison at a wavelength of 508nm after cooling, detecting the concentration of proline in the measuring solution from a standard curve, and calculating the percentage of the proline content. The method extracts chlorophyll and proline at one time, avoids grinding, greatly reduces manpower and material resources, saves test materials, and has important significance for plant stress resistance research.

The invention relates to the technical field of thermosensitive labels, in particular to a bottom blue-developing thermosensitive label and a preparation method thereof. The bottom blue-developing thermosensitive label comprises a bottom layer and a dye layer which are sequentially arranged from bottom to top, wherein the bottom layer is carbon-source-free paper, and the dye layer is made of developing dye; the color development dye comprises the following raw materials in parts by weight: 25-30 parts of a colorless buffer toner, 10-15 parts of a color developing agent, 3-8 parts of a flattingagent A, 3-5 parts of a defoamer A, 2.5-3.0 parts of an aqueous polytetrafluoroethylene modified wax dispersion, and 30-35 parts of a solvent A. The dye layer of the bottom blue-developing thermosensitive label can change the color developing of the printed characters in a printing state of a thermosensitive printer, can improve the withered monotonous sense of only single black characters at present and can improve the color development effect. The preparation method of the bottom blue-developing thermosensitive label has the advantages of the simple operation, the easy control, the high production efficiency and the stable quality, and can be used for mass production.

The invention discloses a thermochromic material of a malachite green-boric acid system, and a proportion confirmation test method. The thermochromatic material is a color-changing material in which substances are changed in color at different temperatures; and various thermochromic reasons such as crystal form transformation, structural change and the like of the substances at the different temperatures exist. The thermochromic material comprises, by weight, 1-3 parts of a color forming agent, 100-130 parts of a color developing agent and 10-500 parts of a solvent; the color forming agent ismalachite green; the color developing agent is boric acid; and the solvent is malonic acid, citric acid or tetradecanol. The method is used for the thermochromic material of the malachite green-boricacid system and proportion confirmation.

The invention discloses a colorimetric food freshness intelligent indication label and a preparation method thereof, and belongs to the technical field of food intelligent packaging. The colorimetric food freshness intelligent indication label comprises a cellulose-anthocyanin porous film and an AKD hydrophobic structure, wherein a layer of hydrophobic structure is further prepared on the surface of the color development label by using an AKD material, and has a special surface appearance, and the hydrophobic structure has different patterns, such as grids, hemispheres and the like, at a micron level, has a vertical lamellar structure at a nano-scale structure, and has excellent hydrophobicity. According to the invention, the hydrophobic structure has gaps and does not completely cover the surface of the mixed film, so that the water vapor permeability and the color rendering property of the hydrophobic structure can be retained while the hydrophobic structure is hydrophobic; the hydrophobic structures are uniformly arranged, so that the hydrophobicity of the mixed film is improved, the integrity and the color rendering property of the label are protected, and the color rendering property and the water vapor permeability of the intelligent label are not influenced; and the intelligent label does not affect the color development effect and has a high hydrophobic effect.

The invention discloses a hot stamping film for injection molding parts. The hot stamping film is prepared from a hot stamping base film layer, a separation layer, a color layer, an aluminized layer and an adhesive layer, wherein the separation layer is prepared from the following components in parts by weight: 40-45 parts of methyl trichlorosilane, 20-25 parts of diphenyl dichlorosilane, 6-8 parts of sodium ethylenediamine propanesulphonate, 1-4 parts of dipotassium sebacate, 5-8 parts of dioctyl sebacate, 9-13 parts of n,n'-ethylenebisoleamide and 1-2 parts of octyl and decyl glycerate; and the adhesive layer is prepared from the following components in parts by weight: 37-44 parts of thermoplastic resin, 0.4-0.6 part of sodium allylsulfonate, 1-3 parts of dibutylthiourea and 3-5 parts of hexamethyl-disilazane. According to the hot stamping film for the injection molding parts, the problemsthatthe separation effect of the separation layer in an existing hot stamping film is not significant and the aesthetic property of a product is affected by the adhesive layer are effectively solved; the hot stamping film can stably exist on the surfaces of the injection molding parts, such as installation covers of a few of water heaters, and does not easily fall off; the product can be endowed with the shiny appearance; and the quality of the product is improved.

The invention provides a heat-dissipating powder coating modifying aid. The heat-dissipating powder coating modifying aid is prepared from such components in parts by weigh as 20-30 parts of nano kaolinite, 3-5 parts of corundum, 8-10 parts of phosphate ore, 3-10 parts of polyacrylate, 5-8 parts of aluminum dihydrogen phosphate, 5-8 parts of limestone, 1-1.5 parts of silane coupling agent and 0-0.7 part of bactericide. The preparation method of the heat-dissipating powder coating modifying aid comprises the steps of A, calcining the nano kaolinite and the phosphate ore at a temperature within the range of 650-750 DEG C, discharging and cooling, and then mixing the discharged material with the limestone, and grinding into powder, thereby obtaining a premix a, B, mixing the phosphate ore and the aluminum dihydrogen phosphate for ball milling, adding the polyacrylate in the ball milling process, stirring while preserving the heat within the range of 85-90 DEG C, thereby obtaining a premix b, C, mixing the premixes, adding the left raw materials and stirring for dispersing, and D, drying to obtain the coating modifying aid. The invention provides the heat-dissipating powder coating modifying aid capable of improving the adhesion of the heat-dissipating powder coating to the surface of an object, and the preparation method of the modifying aid; the aid is added to enhance the heat-conducting effect of the coating layer and improve the wear resistance of the coating.

The invention discloses paper-based test paper for rapidly detecting lead in tea by applying ion imprinting coloration, the paper-based test paper comprises a paper base and a lead ion imprinting membrane constructed on the surface of the paper base, the lead ion imprinting membrane is constructed on the surface of the paper base by adopting a sol-gel method, the base material of the lead ion imprinting membrane is natural cellulose, and the base material of the lead ion imprinting membrane is natural cellulose. The natural cellulose is formed by interweaving a plurality of microfibers and nano-level fiber nets; when the paper-based test paper is prepared, a sol-gel method is adopted as a construction mode, a template lead nitrate is effectively fixed and uniformly distributed on the surface of a paper-based material under the multi-layer wrapping and bonding cross-linking effects of nano titanium dioxide, and after template elution is performed, the surface of the constructed material has a large number of lead ion imprinting sites, and in the using process, the lead ion imprinting sites can be used for preparing the paper-based test paper. The lead ions in the tea can be specifically adsorbed, and the constructed detection material is stable in property and free of special color, and does not influence the color development of the lead ions.

The invention relates to a cultivation method capable of improving red leaf characters of euonymus alatus cv. 'Compacta' and prolonging the ornamental period. The method comprises steps as follows: illumination, watering, adjustment of pH of soil, fertilization, spraying of a plant growth regulator and spraying of a bordeaux mixture. Through regulation of each factor in the growth process of euonymus alatus cv. 'Compacta', the ornamental period of the euonymus alatus cv. 'Compacta' planted in the northern coastal saline region is advanced to the first ten-day period of October, the leaf fall period is delayed to the first ten-day period of November, and the ornamental period is prolonged by about 15 days as compared with a conventional planting method. Moreover, more than 90% of leaves areall red, the leaves are bright, and the ornamentation is greatly increased.

The invention belongs to the technical field of ceramic powder, and relates to effect powder for sinking ink as well as a preparation method and application of the effect powder. The effect powder for the sinking ink comprises the following raw materials in parts by weight: 0-13 parts of nepheline, 30-37 parts of quartz, 17-23 parts of lead oxide and 30-40 parts of vanadium pentoxide. The preparation method of the effect powder for the sinking ink comprises the following steps: step a, weighing raw materials: weighing the raw materials according to a formula, and fully and uniformly mixing the raw materials to form a mixture; step b, calcining: calcining the mixture at a certain calcining temperature for a certain time, and naturally cooling to room temperature to obtain a calcined material; and c, crushing and grinding: crushing the calcined material, and grinding to obtain the effect powder for the sinking ink. The sinking ink prepared from the effect powder obtained by the preparation method overcomes the defects that textures presented on tiles by existing sinking ink are not fine and coherent enough, and yellow-green residues exist after firing.