25 results about "Change pigment" patented technology

The invention relates to the technical field of coatings for corrugated cartons, and discloses a moisture-proof and pressure-resistant corrugated carton for packaging and a preparation method thereof. The preparation method comprises the following steps: bonding the surface paper, the inner paper, the core paper and the corrugated paper which is processed into wave-shaped corrugations, so as to obtain the moisture-proof and compression-resistant corrugated carton for packaging; the surface paper, the inner paper, the core paper and the corrugated paper processed into the wave-shaped corrugations are coated with priming paint and waterproof paint before being bonded; the priming paint is prepared from the following raw materials in parts by mass: 20 to 30 parts of silicone acrylic emulsion, 30 to 40 parts of acrylic acid film-forming emulsion, 3 to 5 parts of modified composite filler, 15 to 25 parts of humidity-sensitive color-changing pigment and 1 to 2 parts of defoaming agent; the waterproof coating is prepared from the following raw materials in parts by mass: 30 to 40 parts of silicone acrylic emulsion, 8 to 10 parts of acrylic acid film-forming emulsion, 20 to 30 parts of acrylate core-shell emulsion, 20 to 30 parts of modified composite filler, 1 to 2 parts of photoinitiator and 1 to 2 parts of defoaming agent.

The invention provides a thermosensitive color-changing crosslinked polyethylene pipe and a preparation method thereof. The thermochromic crosslinked polyethylene pipe comprises the following components in parts by weight: 100 parts of polyethylene, 30-50 parts of epoxidized soybean oil, 0.5-2 parts of nano titanium dioxide, 3-8 parts of a compatilizer, 1.5-5 parts of a thermochromic pigment, 0.5-1.2 parts of an antioxidant and 0-3 parts of a functional additive, the cross-linking degree of the thermosensitive color-changing cross-linked polyethylene pipe is reduced from inside to outside in a gradient mode. By adding epoxidized soybean oil as a dispersing agent into a polyethylene matrix and performing interface modification through nano titanium dioxide, under the combined action, the interfacial tension between the pigment and the polyethylene matrix is reduced, the dispersing performance of the pigment in the polyethylene matrix is improved, and the heat sensitivity and mechanical strength of the crosslinked polyethylene pipe are remarkably improved; and gradient cross-linking distribution is further combined, so that the bursting pressure of the cross-linked polyethylene pipe is further improved.

The invention discloses a water-based optical discoloration pigment and water-based anti-forgery ink. The water-based optical discoloration pigment comprises an optical discoloration pigment, an organic phosphate passivation layer and a silicon dioxide protection layer, wherein the optical discoloration pigment is composed of a plurality of reflecting layers and dielectric layers which are alternately stacked, and the organic phosphate passivation layer and the silicon dioxide protection layer sequentially cover the surface of the optical discoloration pigment. According to the water-based optically variable pigment and the water-based anti-forgery ink provided by the invention, the optically variable pigment is subjected to special surface treatment, so that on one hand, oxidation and corrosion of the optically variable pigment are reduced or inhibited, the optically variable pigment is in a protection state, and the color change effect can be reserved to the greatest extent; on the other hand, the storage stability of the optically variable pigment in a water-based ink system is improved, and a special resin and auxiliary agent system is adopted, so that the water-based optically variable anti-counterfeiting ink which is comparable with an oily system in effect is obtained.

The invention provides a temperature response dynamic luminescent fiber as well as a preparation method and application thereof, and belongs to the technical field of automotive interior materials. A polyacrylonitrile spinning solution is mixed with a rare earth long afterglow luminescent material and a temperature response color-changing pigment to prepare a spinning solution, and the luminescent fiber is prepared through a wet spinning process. The fiber prepared by the invention can be almost perfectly matched and fused with a 3D irregular structure in an automobile, has the air permeability and moisture permeability of a fabric, and forms point-to-surface atmosphere luminescence; and after collision, scattering and ejection are not prone to occurring, and safety performance is high. The fiber not only has temperature color response, but also can realize light energy absorption-storage-release, and can be recycled. In addition, the prepared fiber has the advantages of being high in temperature discoloration response speed, good in fatigue resistance, high in fluorescent brightness, long in afterglow time and the like.

The application discloses a new-born medical infusion pipeline anti-disengagement fixing structure and relates to the technical field of infusion pipeline fixing, which comprises a round patch, perforations, fixing adhesive tape and staggered adhesive units. The application evenly arranges multiple staggered adhesive units along the circumferential direction of the round patch, adopts a rotation strategy of "firstly using two units symmetrically distributed, then changing to other two units after a preset time", realizes time-sharing and partition alternation of the adhesive position, effectively avoids the problem of excessive hydration of the stratum corneum and tearing of the epidermis caused by too tight pasting and then tearing off due to long-time pasting of the adhesive tape on the same skin area in the traditional fixing mode, and further sets the adhesive layer made of degradable gel and color-changing pigment, so that the staggered adhesive units can automatically release from the skin surface by applying physiological saline, almost without external tearing force, and mechanical damage of the tender skin of the new-born caused by physical tearing is fundamentally eliminated.

The invention discloses a building energy-saving colorful coating and a spraying device, the building energy-saving colorful coating comprises a color-changing pigment system, thermal decoloration type reversible thermochromic pigments with different colors are mixed according to different proportions for color matching so as to obtain a color-mixed and colorless color-changing effect, the color-changing pigment system is in a colored state at low temperature, the color-changing pigment system becomes colorless when the temperature rises to a set value, and the color-changing pigment system is in a color-changing state when the temperature rises to a set value; when the temperature is reduced, the original color is recovered; and the base material is used for uniformly developing color and firmly adhering to the surface of a building. According to the invention, a special formula and process are adopted, and various reversible thermochromic pigments are used for complex color blending, so that the coating can reduce the saturation and improve the reflection effect through the heat discoloration property of the reversible thermochromic pigments while ensuring the decoration, and has an excellent energy-saving effect; and meanwhile, the outer wall of the building can form a gradual change effect and form different color effects at different environment temperatures, and the overall attractiveness of the building is further improved.

To provide a food freshness sensor capable of easily determining the freshness of food using an eggshell membrane or a material derived from the eggshell membrane.SOLUTION: A food freshness sensor comprises a color-changing pigment which changes color in response to substances emitted in association with food spoilage and an eggshell membrane which adsorbs the color-changing pigment or a material derived from the eggshell membrane. Polyaniline or curcumin can be suitably used as the color-changing pigment. The eggshell membrane is an inexpensive, environmentally friendly, and sustainable material. Such a food freshness sensor including the eggshell membrane and the color-changing pigment improves safety related to food freshness and quality, helps reduce food waste, and contributes to the improvement of food supply and society.SELECTED DRAWING: Figure 26

The invention provides a degradable agricultural functional film and a preparation method thereof, and relates to the technical field of degradable materials. The preparation method of the degradable agricultural functional film comprises the following steps: mixing adipic acid, 1, 4-butanediol, terephthalic acid, ethylene glycol, lactic acid, starch, an inorganic filler, an anti-aging agent, tetrabutyl titanate and phosphite, carrying out polymerization reaction to obtain an anti-aging layer precursor polymer, and preparing the anti-aging layer precursor polymer into an anti-aging layer by adopting a blow molding machine; replacing an anti-aging agent with an anti-fogging agent to prepare an anti-fogging layer; mixing tungstate with a polymer monomer and other auxiliaries to obtain an ultraviolet light reversible color-changing pigment precursor, and coating the ultraviolet light reversible color-changing pigment precursor on the surface of the anti-aging layer subjected to laser etching to obtain an ultraviolet light reversible color-changing layer; and combining the three layers of materials to prepare the degradable agricultural functional film. By reasonably designing the raw materials, the agricultural functional film has degradability and photochromic property while ensuring high strength and stretchability.

A system for detecting a gas, such as hydrogen. The system comprises a gas sensor having at least one chemical color-changing pigment capable of changing its color upon contact with the gas to be detected. The system further comprises a camera for detecting the color chemical color-changing pigment. The gas sensor is functionally coupled to a control logic unit equipped with an artificial intelligence-based algorithm residing in a processor trained for recognizing color changes of the chemical color-changing pigment of the sensor. A method for detecting a computer-implemented method for detecting a gas leak is also disclosed.

The invention discloses tipping paper for a thermochromic cigarette. The tipping paper comprises 10-20 parts of a microencapsulated thermosensitive natural pigment; 50-70 parts of an Arabic gum solution; 10 to 30 parts of glycerol; 0.2 to 0.8 part of vitamin E; and 4-5 parts of absolute ethyl alcohol. The food-grade heat-sensitive pigment and the natural anthocyanin are mixed, the color-changing pigment is prepared by adopting a microencapsulation process, then the Arabic gum solution, the glycerinum, the vitamin E and the absolute ethyl alcohol are mixed to prepare the food-grade heat-induced acid-base color-changing ink, the color is changed through temperature and acid-base changes, and the ink is safe, environmentally friendly and reliable; in the field of tipping paper for cigarettes, the appearance personality and the anti-counterfeiting requirement of the packaging paper can be enhanced.

The invention relates to the technical field of oil painting drawing, in particular to an oil painting drawing spray gun device which comprises a spray gun body, a color changing mechanism is arranged on the rear side of the top of the spray gun body, and a spray head replacing mechanism is arranged on the front side of the spray gun body. The functions of automatic pigment replacement and synchronous nozzle switching are achieved, a multi-stage transmission system is driven by a motor, a linkage mechanism is formed by pigment tank rotation positioning and nozzle selection, the limitation that pigment and nozzles of a traditional spray gun need to be manually replaced is broken through through the design, in the pigment replacement process, the system automatically completes positioning adjustment of the corresponding nozzles, and the efficiency is improved. Precise butt joint of a pigment channel and a nozzle is ensured, a cleaning water storage tank and a washing process are specially arranged, the problem of cross contamination of pigments is effectively solved, full-process automation of drawing, cleaning and color changing and experimental data display can be achieved through program control, and the device shortens the pigment changing time.

The application belongs to the technical field of ink, and particularly relates to a preparation method of a photosensitive color-changing ink, comprising the following steps: adding modified photosensitive color-changing pigments, dispersants, defoaming agents, water-based polyurethane, thickening agents, leveling agents and cosolvents into water in sequence to obtain the photosensitive color-changing ink, and providing the mass ratio of the photosensitive color-changing ink. The application solves the defects of the existing photo-variable ink, utilizes the transparency and stability of the modified photosensitive color-changing pigments, thickening agents and defoaming agents to form stable light transfer, directly acts on the modified photosensitive color-changing pigments, and simultaneously, the photoelectric response of zinc oxide and the color-changing system of polyaniline form a synergistic photosensitive color-changing effect, so that a specific photosensitive color-changing ink is obtained.

The utility model provides an anti-corrosion spraying treatment device of a conveying pipeline, which relates to the field of spraying equipment and comprises a spraying gun head, a built-in material channel and a coating container which are arranged on a spraying machine body, and the coating container is connected outside the spraying machine body and conveys coating to the built-in material channel in the spraying machine body. The built-in container is placed into the coating container through the opening, the container guide opening connected with the bottom extends into the built-in material channel so that pigment can be conveniently guided in, the problem that different kinds of coatings are mixed due to improper cleaning or operation can be avoided only by additionally installing the built-in container when the pigment is replaced, and meanwhile the problem that the coatings are mixed due to the improper cleaning or operation is solved when the coatings are frequently replaced. The built-in container only needs to be integrally pulled out and cleaned, so that the disassembly and assembly convenience is improved, when only one coating needs to be sprayed, the built-in container can be directly disassembled and stored, the applicability is improved, and diversified construction requirements are met.

The invention provides a reversible photochromic pigment, a reversible photochromic agricultural functional film and a preparation method of the reversible photochromic agricultural functional film, and belongs to the technical field of agricultural films. The preparation method comprises the following steps: preparing a reversible photochromic pigment precursor from a polyacrylic acid solution, a tungstate solution, glycerol, a coloring pigment and a dispersant, then preparing a reversible photochromic pigment from the reversible photochromic pigment precursor, an initiator and a diluent, and finally preparing the reversible photochromic agricultural functional film. Comprising an anti-aging layer, a reversible color changing layer and a liquid drop preventing layer which are sequentially stacked, and the reversible color-changing layer is prepared by coating the anti-aging layer with a reversible light-changing pigment. The agricultural functional film provided by the invention is gradually changed from original white to different degrees of black under the irradiation of ultraviolet rays with different intensities, so that the light transmittance is reduced, the damage of strong sun illumination to seedlings under the film can be prevented, the light transmittance of the agricultural functional film is gradually increased along with the weakening of the ultraviolet rays, and the agricultural functional film has relatively strong photochromic performance.

The invention provides a temperature change pigment and a printing process based on the temperature change pigment. The printing process comprises the following steps: 1) adding a stabilizer, a reinforcing agent, a washing resistant agent and a hand feeling improver into water, uniformly mixing, adding a waterborne polyurethane-organic silicon copolymer resin adhesive under a stirring condition, and finally adding modified temperature change microcapsules to obtain temperature change pigment ink; and 2) sequentially carrying out pretreatment, screen printing, pre-drying, baking curing and post-treatment on the cotton and linen fabric to finish printing of the cotton and linen fabric. The washable agent and carboxyl in the waterborne polyurethane-organosilicone copolymer resin adhesive form a three-dimensional network, network pores are filled with the reinforcing agent to improve compactness, a chemical-physical cross-linked network is constructed through the washable agent and the reinforcing agent, in addition, pre-drying, baking curing and post-treatment are sequentially carried out based on the specific temperature change pigment after silk-screen printing, and therefore the temperature-sensitive printing ink is obtained. Low-temperature crosslinking is realized through stepped curing and microwave after-treatment, and the long-term stability of printing is improved.

The invention discloses a low-temperature temperature change coating and a preparation method thereof, and particularly relates to the technical field of paints.The coating comprises 35-55 parts of matrix resin, 12-24 parts of segmented irreversible temperature change pigment and 6-12 parts of auxiliaries; wherein the segmented irreversible temperature change pigment comprises a white substrate pigment, a yellow pigment microcapsule and a red pigment microcapsule, and the white substrate pigment is titanium dioxide. According to the paint disclosed by the invention, the special segmented irreversible temperature change pigment is adopted, so that irreversible color change of the paint in different low-temperature stages is realized. When the temperature is reduced to 10 DEG C, the coating becomes yellow from white, and the environment temperature is prompted to reach a warning value; and when the temperature is reduced to-5 DEG C, the coating becomes red, and the low-temperature condition is warned to be more serious. The irreversible color change can clearly record the experienced low temperature state, and a reliable basis is provided for outdoor temperature monitoring.

The invention discloses a high-temperature-resistant and shear-resistant optical discoloration pigment and application thereof in plastic. The optical discoloration pigment comprises at least one metal layer and a flexible buffer layer located between the metal layers, the metal layer comprises a reflecting layer and a dielectric layer which are formed by alternate deposition; the reflecting layer is made of at least one of aluminum, titanium, silver, copper, nickel, platinum or chromium, and the dielectric layer is made of at least one of silicon dioxide, titanium dioxide, aluminum oxide, aluminum fluoride or magnesium fluoride; and the flexible buffer layer is made of at least one of butadiene styrene rubber, organic silicon elastomer or polyolefin. Through special film system structural design and surface grafting modification, the application bottleneck of a traditional optical discoloration pigment in an injection molding process is broken through, the high-temperature-resistant and shear-resistant optical discoloration pigment suitable for the injection molding industry is prepared, a unique visual effect and a high additional value are given to plastic products, and the high-temperature-resistant and shear-resistant optical discoloration pigment is suitable for the injection molding industry. The method is expected to become important driving force for upgrading products in the injection molding industry.

The invention discloses a temperature-sensitive color-changing damp toy and a manufacturing process thereof, and relates to the technical field of toy manufacturing. Comprising a tide toy body with a tide design model, and the outer surface of the tide toy body is sequentially coated with an adaptive acrylic acid primer layer, a patterned gradient temperature-sensitive color-changing layer and an anti-pollution wear-resistant transparent protective layer; the patterned gradient temperature-sensitive color-changing layer is of a multi-color partition pattern structure and at least comprises two color partitions, each color partition corresponds to an independent color-changing temperature interval, and the color-changing temperature range integrally covers-5 DEG C to 50 DEG C; the patterned gradient temperature-sensitive color-changing layer is prepared by mixing a reversible temperature-sensitive color-changing pigment, film-forming resin, a diluent and a compound additive; the anti-pollution wear-resistant transparent protective layer is a composite system of polyurethane varnish and nano titanium dioxide, and the mass ratio of the nano titanium dioxide is 4-7%. Through cooperation of key components, clear gradient discoloration, zero-level adhesive force, rapid interactive response and excellent stability are achieved.

The utility model belongs to the technical field of processing of pearlescent pigments with different colors along with angles, and particularly relates to a suspension mixing device for preparing color-changing pigments, which comprises a mixing barrel, a top cover and a stirring part, the top cover is mounted at the top of the mixing barrel, a driving part is mounted on the top cover, and the stirring part is mounted on the top cover. The driving part is in transmission connection with a stirring part mounted in the mixing barrel; the mixing barrel is provided with an inclined bottom, a middle plate with a through hole is mounted on the inclined bottom, the stirring part comprises a stirring pipe rotationally connected with the middle plate, and a stirring rod and a spraying hole are arranged on the outer surface of the stirring pipe; the bottom of the mixing barrel is communicated with a circulating shell through a circulating pipeline; in the application, through the cooperation of the circulating pipeline, the circulating shell and the circulating pump, the suspension liquid in the mixing cylinder can be circularly mixed, and particularly the non-uniform suspension liquid at the inner edge and center of the mixing cylinder can be subjected to transposition mixing, so that the mixing effect is improved, and free hydroxide precipitation is avoided.

The invention relates to the technical field of pigment preparation, in particular to a composite microcapsule color-changing pigment and a preparation method thereof, and the pigment is prepared from intelligent microcapsules, water-based acrylic resin, a coalescing agent and a thickening agent according to a specific proportion. The intelligent microcapsule adopts a multi-compartment structure, the core is a thermochromic microcapsule, a plurality of perfume release sub-capsules with different thermal response thresholds are fixed on the surface through chemical bonding, and selective perfume release based on temperature gradient is realized. The thermochromic compound is composed of crystal violet lactone, bisphenol A and a specific solvent, and excellent thermochromic performance is guaranteed. According to the design, multifunctional integration of the pigment is achieved, temperature response color change and staged fragrance release are achieved, and the pigment is widely applied to the fields of intelligent coatings and sensory materials and has remarkable innovativeness and practical value.

The invention discloses an intelligent temperature-sensitive color-changing hot-melt pressure-sensitive adhesive and a preparation method thereof. The hot-melt pressure-sensitive adhesive comprises a styrene-isoprene-styrene block copolymer, a styrene-butadiene-styrene block copolymer, hydrogenated C9 resin, hydrogenated rosin resin, naphthenic oil, a temperature-sensitive color-changing pigment and an antioxidant. The hot-melt pressure-sensitive adhesive is prepared by taking SIS as a matrix material and matching the matrix material with hydrogenated C5 resin and naphthenic oil, so that the hot-melt pressure-sensitive adhesive has excellent pressure-sensitive adhesive property. Tests show that the 180-degree peel strength of the hot-melt pressure-sensitive adhesive to a stainless steel plate can reach 8-12 N / 25 mm at the temperature of 25 DEG C, and the hot-melt pressure-sensitive adhesive can meet the bonding requirements of most packaging, labels and other application scenes.

The application discloses a kind of water-based outdoor asphalt pavement color-changing coating and preparation method thereof, belong to water-based paint technical field.The formula composition of the coating includes: 30-50 parts of self-crosslinking type elastic acrylate copolymer emulsion, 10-30 parts of inorganic nano-modified acrylic emulsion, 20-25 parts of color-changing pigment, 0.3-0.8 parts of dispersing agent, 0.3-0.8 parts of base material wetting agent, 0.1-0.3 parts of defoaming agent, 0.2-0.5 parts of leveling agent, 0.5-1.2 parts of thickening agent, 1-5 parts of LH additive, 0.1-0.5 parts of pH regulator, 10-15 parts of deionized water.The beneficial effect: the present application is by the specific proportion of self-crosslinking type elastic acrylate copolymer emulsion, inorganic nano-modified acrylic emulsion, color-changing pigment, dispersing agent, base material wetting agent, defoaming agent, leveling agent, thickening agent, LH additive, pH regulator and deionized water are mixed, after specific preparation procedure, obtain a kind of water-based outdoor asphalt pavement color-changing coating, improve weather resistance, water resistance, wear resistance and acid and alkali resistance.

The present application relates to the technical field of pigment preparation, in particular to a kind of composite microcapsule color-changing pigment and its preparation method, the pigment is composed of intelligent microcapsule, water-based acrylic resin, film-forming aid and thickening agent according to specific proportion.Intelligent microcapsule adopts multi-compartment structure, core is thermochromic microcapsule, surface is fixed by chemical bonding multiple perfume release sub-capsules with different thermal response threshold, realize selective fragrance release based on temperature gradient.Thermochromic composite is composed of crystal violet lactone, bisphenol A and specific solvent, ensure excellent thermochromic performance.The design realizes the multifunctional integration of pigment, has temperature response color change and phased fragrance release, is widely used in intelligent coating and sensory material field, has significant innovation and practical value.

The invention provides a color-changing pigment composition. The color-changing pigment composition comprises a first pigment and a second pigment, wherein the first pigment comprises at least one optical color-changing pigment which changes color along with the angle; the second pigment comprises at least one structural color pigment capable of generating scattering color; wherein the first pigment and the second pigment are configured such that under ambient light, when the observation angle is parallel to the normal direction of the main surface of the color-changing pigment composition, the first pigment and the second pigment present the same color, and when the observation angle deviates from the normal direction of the main surface of the color-changing pigment composition, the first pigment and the second pigment present the same color. The colors presented by the first pigment and the second pigment are the same or different; under the inclined irradiation of the strong light source, the second pigment presents a scattering color, and the first pigment does not have the scattering color. The optically variable pigment composition has multiple anti-counterfeiting functions, the authenticity identification method is simple, and the optically variable pigment composition is extremely difficult to counterfeit.

The utility model relates to the technical field of stainless steel spraying, in particular to spraying equipment for stainless steel plate processing, which comprises a spray gun, a spray nozzle fixedly connected with a spray opening of the spray gun, a connecting pipe fixedly connected with the bottom of the spray gun, and a high-pressure air pump fixedly connected with one end, far away from the spray gun, of the connecting pipe. The high-pressure air pump can convey high-pressure air to the spray gun through the connecting pipe, the upper end of the spray gun is further fixedly provided with a spraying mechanism capable of adjusting the spraying color, and a storage mechanism capable of storing the connecting pipe is further arranged below the spray gun, so that the problem that pigment bottles are tedious to replace in the multi-color spraying process of traditional equipment is solved; the device has the advantages of being easy and convenient to operate and small in size, the production efficiency can be effectively improved, and operators only need to operate easily by rapidly switching the pigment bottles.