765 results about "Color changes" patented technology

The invention discloses a preparation method and application of a high-sensitivity temperature-responsive cellulose-based structural color material, and belongs to the field of functional polymer materials. The preparation method comprises the following steps: adding an isopropanol solvent into a certain volume of aqueous solution to obtain an isopropanol dilute solution; hydroxypropyl cellulose is dissolved in an isopropanol dilute solution, a cholesteric liquid crystal structure is formed through self-assembly, a bright structural color is presented, and the hydroxy propyl cellulose structural color material is prepared. A hydroxy propyl cellulose structural color material is uniformly coated on the surface of a polydimethylsiloxane film containing carbon nanotubes, then the transparent polydimethylsiloxane film is used for sealing the hydroxy propyl cellulose structural color material, the temperature sensor with the visual structural color is prepared, and the temperature sensor with the visual structural color is attached to the skin of the human body and can display different colors along with temperature changes. The prepared structural color material is sensitive in response to temperature stimulation, rapid in color change and suitable for human body visual real-time temperature monitoring in the field of intelligent sensing.

The invention discloses a structured cable with self-cooling and state self-sensing functions, and belongs to the technical field of wires and cables. The cable comprises a conductor, an insulating layer, a functional layer, a sensing layer and an outer sheath from inside to outside. The functional layer is made of an elastic porous material, a spiral cavity is embedded in the functional layer to form a passive heat dissipation channel, and efficient heat dissipation is achieved through the chimney effect. The sensing layer is formed by compounding a transparent polymer base material and thermochromic microcapsules, and when the local temperature of the cable exceeds a safety threshold value, the color changes, so that visual positioning of an overheat fault point is realized. The heat dissipation and state sensing functions are deeply integrated in the cable body structure, external equipment and energy are not needed, the cable has the advantages of being simple in structure, low in cost, safe, reliable and the like, and the problems that a traditional cable depends on an external heat dissipation and monitoring system, so that the structure is complex, cost is high, and operation and maintenance are inconvenient are effectively solved.

This temperature-indicating label is provided with: a base material; an adhesive layer to be affixed to the surface of a living body; and a temperature-indicating ink layer that is positioned between the base material and the adhesive layer, and that is configured so as to change color in accordance with the temperature of the temperature-indicating ink layer. The stress at 20% stretching is 0.2 N / mm2 to 10.0 N / mm2. The thickness of the temperature-indicating ink layer is 1-9 µm. In a state in which the adhesive layer is affixed to a white plate, the color difference ΔE* ab in the L*a*b* color space between a first state in which the temperature-indicating ink layer exhibits a first color and a second state in which the temperature-indicating ink layer exhibits a second color different from the first color is greater than 10. The color change between the first color and the second color is visible via the base material.

The polymer asphalt composite waterproof coiled material comprises an asphalt self-adhesion waterproof layer, a polymer asphalt waterproof layer and a polymer asphalt waterproof layer which are arranged in a laminated manner, the impermeable layer is arranged on at least one side of the two opposite side surfaces of the asphalt self-adhesion waterproof layer; and the macromolecular sheet waterproof layer is distributed on the surface of one side, deviating from the asphalt self-adhesion waterproof layer, of the impermeable layer in an extending manner. According to the polymer asphalt composite waterproof coiled material disclosed by the embodiment of the invention, the impermeable layer is used for preventing oil in the asphalt self-adhesion waterproof layer from migrating to the polymer sheet waterproof layer in a physical blocking or oil migration hindering manner, so that the oil in the asphalt self-adhesion waterproof layer can be effectively prevented from permeating and migrating to the polymer sheet waterproof layer; the color change of the appearance of the waterproof coiled material is avoided.

The utility model relates to nursing supplies technical field, concretely discloses a temperature -sensitive discoloration multifunctional bath brush, include: bottom plate, the both sides of bottom plate are first board surface and second board surface respectively, first board surface is provided with first bristle area and second bristle area, first bristle area sets up in first board surface center, just second bristle area is provided with a plurality of, a plurality of second bristle area sets up in first bristle area periphery, second board surface is provided with third bristle area and fourth bristle area, third bristle area sets up in second board surface center, just fourth bristle area is provided with a plurality of, a plurality of fourth bristle area sets up in third bristle area periphery, the surface of first bristle area third bristle area is equipped with temperature -sensitive discoloration layer, the utility model discloses through setting up temperature -sensitive discoloration layer on the surface of first bristle area and third bristle area, can realize real -time, directly and intuitively understand water temperature condition through observing bristle area color change only through naked eye.

The present invention relates to an agent for the oxidative color change of keratin fibers which is in the form of an oil-in-water emulsion and has improved storage stability, as well as to a method for the oxidative color change using the aforementioned oxidative color-changing agent in emulsion form.

The invention relates to the technical field of lighting power-saving control, in particular to a color-changing control system and method applied to stage lighting, and the system comprises an audio collection module which is used for receiving an audio signal in real time; the audio partitioning module is electrically connected with the audio acquisition module to receive an audio signal, acquire a following signal according to the audio signal, and generate a segmented frequency signal based on the following signal; the acquisition and conversion module is electrically connected with the audio partitioning module to receive the segmented frequency signals and convert the segmented frequency signals to generate control signals; and the PWM output module is electrically connected with the acquisition and conversion module to receive the control signal, update an illumination display mode in real time based on the control signal, and control stage lighting in real time based on the illumination display mode. According to the invention, the illumination display can be adjusted according to the actual stage singing condition, the diversity of illumination changes is better reflected, and the overall singing effect of a concert is improved from the side.

A wet-state indicator composition is provided, which is excellent in color change performance and in which odor is suppressed. Disclosed is a wet-state indicator composition comprising: a hydrocarbon oil (A); at least one selected from saturated fatty acids having 16 or more carbon atoms and derivatives of the saturated fatty acids (B); and a moisture-sensitive colorant composition (C), wherein component (B) is contained in an amount of 2 to 85 parts by mass based on 100 parts by mass of the total amount of components (A) to (C).

The invention relates to the technical field of security and protection monitoring video storage, in particular to a high-definition monitoring video storage method and system based on RGB color pixel coding, and the method comprises the steps: building coordinates for an initial frame pixel by pixel, collecting original RGB data, and building an initial database; the dynamic degree of the picture is analyzed in real time, and the acquisition frame rate and the pixel change judgment threshold value are automatically matched. Then, collecting subsequent frames according to the matching frame rate, calculating the color change degree relative to the previous frame pixel by pixel, and judging whether the pixels need to be updated or not according to a threshold value; storing coordinates, new RGB codes and timestamps of the pixels needing to be updated; and for the non-updated pixels, not storing the RGB data of the non-updated pixels, and caching the complete RGB data of the non-updated pixels when the whole frame is judged to be a static frame. During playback, an initial database is taken as a basis, and the cached static data and the stored dynamic data are combined to directly render an RGB picture, so that lossless, efficient and low-delay playback is realized.

The present application relates to cable sheathing technology field, disclose a kind of based on distribution valve's optical cable sheathing color-changing feed device, including, with the throat of extruder communication main pipeline, further include: two respectively with different color color masterbatch warehouse communication branch pipeline, and two branch branch pipeline with the main pipeline form Y shape convergence section in the way of oblique insertion;Main valve and two branch valves in branch pipeline are located in main pipeline, and two branch valves can switch start-stop closure;Between the round shell connected between main pipeline and extruder, the inner cavity is opened in the round shell, and the inside of the inner cavity is installed with rotatable adjustment cylinder.The fixed dead space between "Y shape convergence section-extruder throat" is replaced by 180 ° rotatable cross valve core in the present application, and horizontal pressure difference airflow is formed by using the same mechanical stroke to drive piston cylinder at switching moment, old material in switching channel is blown out as a whole, and the effect of physical cutting old material section and transition length shortening is achieved.

This invention discloses a PBT composition, its preparation method, and its applications. The PBT composition comprises the following components by weight: 44-56 parts PBT resin; 10-15 parts ethylene bis(tetrabromophthalimide); 25-35 parts glass fiber; and 0.5-1 part ultraviolet absorber. This invention, by adding specific ethylene bis(tetrabromophthalimide) and a specific ultraviolet absorber to a glass fiber reinforced PBT composition, results in a PBT composition with minimal color change after aging. This makes it particularly suitable for components requiring long-term outdoor operation, such as smart boat outdoor units, photovoltaic brackets, air conditioner outdoor unit components, and new energy battery components.

The invention belongs to the technical field of ceramic decorative materials and photochromism, and provides a photochromic dynamic pattern design method for multilayer overprinting partition photosensitive ceramic stained paper aiming at the industrial pain points that patterns of traditional ceramic stained paper are fixed, and existing photochromic stained paper is low in overprinting precision, slow in color change response and the like. According to the method, a five-layer composite structure is constructed and sequentially comprises a ceramic substrate layer, a bottom bonding layer, a photochromic functional layer, a partitioned photosensitive control layer and a surface protection layer, multi-region independent photochromism is achieved through the partitioned photosensitive control technology, and the overprinting precision can reach within 5 microns. The photochromic response time of the product does not exceed 0.5 second, the cycle discoloration life is not less than 150 thousand times, the interlayer peeling strength reaches 3N / cm or above, the product can be widely applied to the field of architectural ceramic and domestic ceramic decoration, and the visual expressive force and interactive experience of the product are effectively improved.

A control unit (150) for a pump (100), the control unit comprising a power button (160) for operating the pump (100). The control unit (150) comprises a plurality of light units (L1, L2, L3) provided with the control unit (150). The plurality of light units (L1, L2, L3) indicate one or more operating parameters of the pump (100). The control unit (150) comprises a control button (170) actuated based on a user action. The control unit (150) is characterized in that the control button (170) allows switching between a plurality of operating modes of the pump (100) based on different user actions. And, the plurality of light units (L1, L2, L3) indicate the switching between the plurality of operating modes of the pump (100) by a color change corresponding to the plurality of operating modes of the pump (100).

The utility model belongs to the technical field of medical supplies, and particularly relates to a lumen simulation test strip capable of monitoring penetrability of a sterilizer. Comprising a carrier layer, an indicating ink layer and a film layer, the indicating ink layer is arranged between the carrier layer and the film layer, two ends of the carrier layer and the film layer in the length direction are opened, and a graduated scale is arranged on the carrier layer. The indicating ink layer is arranged between the carrier layer and the film layer, the graduated scale is arranged on the carrier layer, the simulation test strip is placed in the sterilizer for sterilization, the two ends of the carrier layer and the film layer in the length direction are provided with the openings, and sterilization factors enter through the openings to be in contact with the indicating ink. The indicating ink changes color after being in contact with the sterilization factors, and the length of the indicating ink layer with color change is specifically obtained through the graduated scale, so that the specific penetration distance of the sterilization factors of the sterilizer can be obtained, and the specific length of the sterilizer capable of sterilizing the lumen instruments can be judged.

This invention relates to a method for preparing and applying polyamides from a monomer containing 7-methyldibenzo[c,g]carbazole and triphenylamine: 4-({9-[(4-aminophenyl)(4-methoxyphenyl)amino]-7-methyldibenzo[c,g]carbazole-5-yl}(4-methoxyphenyl)amino)aniline. To address the problems of low solubility, difficulty in film formation, poor cycling stability, narrow color change range, and limited functionality in polyamide materials, this invention constructs two triphenylamine groups on 7-methyldibenzo[c,g]carbazole and introduces a methoxy group onto the triphenylamine to increase the polymer's solubility and stability. The polymer of this invention exhibits excellent electrochromic properties, including excellent cycling stability, fast switching time, and high optical contrast. Furthermore, to address the material's multifunctionality, a naphthalene unit is added to the molecular structure, resulting in a polymer with fluorescent emission. This invention can be applied to displays, rearview mirrors, camouflage applications, and the fluorescence detection of p-trinitrophenol.

The utility model relates to the technical field of hot runner color changing nozzles, in particular to a hot runner color changing nozzle convenient to quickly disassemble and assemble, which comprises a mounting disc, a nozzle assembly is arranged on the side surface of the mounting disc, a flow guide assembly is arranged at the top of the mounting disc, and a mounting ring, a nozzle body, a sealing clamping groove, a sealing strip, a fixing rod and a mounting through hole are matched for use. The mounting ring and the nozzle body are connected in an inserted mode through the fixing rod, so that the nozzle body is more convenient to mount and dismount, the sealing strip is embedded into the sealing clamping groove, leakage of a hot melting material is effectively prevented, meanwhile, the situation that the top of the nozzle body is loosened or insufficient in sealing in the using process is avoided, the mounting through hole communicates with the flow dividing pipe, and the sealing effect is good. And the adjusting rod can be driven to rotate by rotating the adjusting knob, then opening and closing of the ball valve body are controlled, accurate adjustment of the flow of the hot melting material in the flow dividing pipe is achieved, and the color changing efficiency and the injection precision of the color changing nozzle are effectively improved.

The utility model discloses a temperature-controllable vacuum retort pouch, and relates to the technical field of retort pouches. The bag comprises a bag body, the bag body comprises an inner layer and an outer layer, the inner layer and the outer layer are used for forming the bag body, the outer layer is fixedly connected with the outer wall of the inner layer and used for protecting the inner layer from being damaged by the outside, and a reversible temperature measuring label is fixedly connected to the middle of the outer wall of the front end of the bag body and used for displaying the temperature of the bag body in a color change observing mode. According to the food packaging bag, the sealing performance of the bag body is jointly enhanced through the design of the reinforcing assemblies, the connecting belts, the reinforcing belts, the annular air bags, the strip-shaped clamping blocks and the strip-shaped clamping grooves, the phenomena of untight sealing and air leakage caused by long-time cooking or external force extrusion are effectively prevented, and the freshness and safety of food are guaranteed; meanwhile, due to the design of the plastic blocks on the two sides of the reinforcing belt, the user can easily tear the connecting belt, so that the retort pouch is conveniently opened, and the use experience of the user is improved.

The invention provides powder with reversible photochromic performance as well as a preparation method and application thereof, and the powder with reversible photochromic performance is a photochromic microcapsule and consists of a core material and a wall material, the core material accounts for 30%-50% of the total weight of the microcapsule, and the wall material accounts for 50%-70% of the total weight of the microcapsule; the core material is an indoline spiroheterocyclic compound, and the wall material is a biocompatible polymer. The core material is an indoline spiroheterocyclic compound, and the wall material is a biocompatible polymer; the powder is prepared by taking indoline spiropyran as a photochromic core material through a microcapsule coating process, has reversible response characteristics of developing under ultraviolet irradiation and decolorizing under strong light irradiation, and can be compounded with a tattooing pigment matrix to obtain a tattooing product with active developing and decolorizing regulation and control functions. The problem that the photochromic tattoo pigment is irreversible in color change is solved, and meanwhile the photochromic tattoo pigment has good stability and biocompatibility.

Visual indicating paste compositions are provided that are capable of producing a detectable color change upon contact with an aqueous liquid. The paste compositions include an indicator dye capable of changing color over a pH range of about 3 to about 11; an inorganic base capable of being converted to a more basic substance upon reaction with water; a liquid carrier (e.g., a polyalkylene glycol carrier); optionally, a gelling agent such as silica gel; and a proton donating compound such as a carboxylic acid or an organic sulfonic acid. When applied to a measuring probe, the paste compositions are particularly useful for detecting the level of water in the bottoms of tanks and delivery systems containing fuels such as gasoline by producing a clear, detectable color change upon contact with an aqueous liquid without bleeding or run-off. The paste compositions exhibit long shelf life and improved water resistance.

The present application relates to a kind of spiropyran derivatives, color-changing glass paint and its preparation method and application.The spiropyran derivative, characterized in that, with as shown in formula (I) structure: formula (I);In formula (I), R1, R2, R3, R4, R5 Or R6 Independently be H, OCH3 Or the specific substituent group on the specific benzene ring of this spiropyran derivative, by its skeleton and specific substituent group cooperation, can realize the color change under light condition;With the spiropyran derivative as photochromic powder, be applied in color-changing glass paint, can make color-changing glass paint color change under light condition, not only can make the light transmittance of color-changing glass paint after color change lower, and after aging treatment, still can make color-changing glass paint keep lower light transmittance, and durability is good.

The application provides an environment-friendly low-carbon PVC material and a preparation process thereof, and relates to the technical field of polymer materials.The material comprises, in percentage by mass, 45-55% of PVC resin powder, 25-35% of environment-friendly plasticizer, 8-20% of negative-carbon calcium carbonate and 5-12% of stabilizer.The negative-carbon calcium carbonate is prepared through mineralization reaction of industrial waste residues and industrial discharged carbon dioxide.Aiming at the color fluctuation problem between batches of the recycled filler, the application provides a preparation process comprising an online dynamic color adjusting closed-loop control system, the raw materials are filed, the material color is monitored in real time online, the Delta E is calculated based on a color difference model, the PID control algorithm is used to dynamically add color masterbatches for real-time correction when the preset threshold is exceeded, and the final product is preheated and verified for color change.The application realizes the reuse of waste resources and carbon emission reduction, solves the problem of inconsistent color caused by the negative-carbon calcium carbonate, ensures the stability of the color and performance between batches of the material, and is suitable for industrial large-scale production.

The invention discloses a color-changeable TPU (thermoplastic polyurethane) film as well as a preparation method and application thereof, and belongs to the technical field of intelligent high polymer materials. The TPU film comprises a thermoplastic polyurethane (TPU) matrix, a color change response system, an interface stabilizer and a functional additive. The color-changing response system comprises at least two different types of color-changing materials, so that multiple environmental stimulus response color changing, such as temperature and light dual response, is realized. The film has the characteristics of sensitive color change response, high color contrast, good color change reversibility, excellent fatigue resistance, high mechanical property retention rate and the like. Through formula and process optimization, the technical problems that a single color-changing material is insensitive in response, low in color-changing contrast ratio, poor in durability and poor in compatibility with a TPU matrix are solved. The TPU film prepared by the invention can be widely applied to the fields of intelligent wearing, safety anti-counterfeiting, dynamic decoration, sensor indication and the like.

The invention discloses a color changing auxiliary control method for a front windshield and a vehicle, and belongs to the technical field of vehicle control. According to the technical scheme, under the condition that the target vehicle is in the driving state, whether auxiliary color changing control needs to be conducted on the two photochromic layers of the front windshield of the target vehicle or not is determined. Under the condition that auxiliary color changing control needs to be carried out on the two photochromic layers, corresponding initial color changing auxiliary parameters are determined on the basis of the vehicle exterior illumination parameters of the target vehicle, and the initial color changing auxiliary parameters are matched with the vehicle exterior illumination conditions of the target vehicle. And on the basis of the initial color change auxiliary parameters and the temperature outside the target vehicle, auxiliary color change control is carried out on the at least two photochromic layers, so that the color of the front windshield can quickly adapt to the external environment condition of the target vehicle, and the driving safety is improved.

The application provides a top patch, a top cover assembly, a battery and an electric device. The top patch comprises a bottom layer, a detection layer and a top layer which are sequentially stacked; the bottom layer is provided with a plurality of liquid guide holes, the plurality of liquid guide holes are arranged at intervals on the bottom layer, each liquid guide hole penetrates the bottom layer along the thickness direction of the bottom layer, and the bottom layer is used for connecting with the top cover; the detection layer comprises a first surface and a second surface, the first surface and the second surface are oppositely arranged in the thickness direction of the detection layer, the first surface is connected with the bottom layer and covers the plurality of liquid guide holes, the second surface is connected with the top layer, the detection layer is used for changing color when contacting with electrolyte, and the top layer is used for observing the color change of the detection layer. The technical scheme of the application can improve the liquid leakage detection capability in the top cover assembly and avoid continuous liquid leakage of the battery.

The application discloses a method for controllably degrading glycosidic bonds of hyaluronic acid by programmed temperature rising. The method is used for high-molecular-weight hyaluronic acid aqueous solution, and a combination of an oxygen oxidant and an acidic additive is used to controllably cut and degrade glycosidic bonds in the macromolecule through a heating process of programmed temperature rising control system, so as to obtain oligomeric hyaluronic acid. The oligomeric hyaluronic acid prepared by the method has very good stability and no color change after long-time storage. The oligomeric hyaluronic acid prepared by the method can be applied to the fields of cosmetics, food, medicine and the like, and has very strong practical value.

The invention discloses a UI animation control system based on a random tilt and color change algorithm, and the system comprises an animation execution module which drives a target UI element to rotate and change color attributes through an animation complement library; the random tilt calculation module generates a random rotation axis through vector cross multiplication and instructs the animation execution module to drive the target UI element to rotate along the random rotation axis in the 3D space; the dynamic trigger module comprises a control parameter n which is calculated in real time, and is used for monitoring at least one state parameter of the target UI element, comparing the state parameter with the control parameter n, and sending a trigger instruction to the animation execution module and the random tilt calculation module when a preset condition is met, the rotation and the color attribute change of the target UI element are driven. The problems that an existing UI animation is simple in dynamic effect, single in interaction mode and incapable of meeting the dynamic and interactive requirements of a user can be solved.

A check valve includes an upper housing defining an inlet of the check valve and a lower housing having a support portion and defining an outlet of the check valve. The check valve further includes a chamber interposed between and defined by the upper and lower housings for fluidly connecting the inlet and the outlet, and a flexible diaphragm mounted in the chamber. The flexible diaphragm selectively permits fluid flow in a first direction and prevents fluid backflow in a second direction opposite the first direction. The flexible diaphragm includes a color changing material, and the flexible diaphragm exhibits a color change when the flexible diaphragm is disposed on the support portion and bends due to a force of a fluid flowing in the first direction.

The invention discloses champagne rhinestones and a vacuum coating color changing method, and belongs to the technical field of rhinestones. The method comprises the steps that S101, a template is transferred, wherein rhinestones are transferred to the template; s102, bias plasma cleaning is conducted, specifically, the template is transferred to a coating chamber, vacuumizing and heating are conducted, and then bias plasma cleaning is conducted; s103, aluminum oxide layer plating: after vacuum cleaning, an aluminum oxide target material is adopted for vacuum coating to form an aluminum oxide layer, and the coating conditions are as follows: the current is 50-70 A, the time is 100-130 S, and the vacuum degree is 5.0-7.0 * 10 <-1 > Pa; in the step S104, oxygen is introduced, ferrochrome is adopted for vacuum coating to form the ferrochrome layer, and the coating conditions are that the current ranges from 50 A to 70 A, the time ranges from 220 S to 270 S, and the vacuum degree ranges from 7.5 * 10 <-1 > Pa to 9.0 * 10 <-1 > Pa; and S105, discharging is conducted, specifically, after cooling is conducted, air is introduced, and then the template is taken out of the coating chamber.

The invention relates to a mechanochromic aviation PMMA material and a manufacturing method thereof.The mechanochromic aviation PMMA material comprises a PMMA matrix and a mechanochromic compound, and the mechanochromic compound is dispersed in the PMMA matrix in a chemical bonding mode; the chemical bonding mode comprises at least one of the following modes: the mechanochromic compound is dispersed in the PMMA matrix in a chemical bonding mode by carrying out ring-opening reaction on the mechanochromic compound and a functional molecule; the mechanochromic compound is copolymerized with a monomer forming PMMA through an unsaturated unit and is dispersed in the PMMA matrix in a chemical bonding manner. The mechanochromic aviation PMMA material is stable and reliable.

The invention discloses an electric arc indication composition suitable for an insulator silicone rubber surface and a preparation method thereof, and belongs to the technical field of functional materials of electrical equipment. The composition comprises the following components in percentage by mass: 0.1-20% of main functional particles, 5-50% of a film-forming material, 60-80% of a solvent and 0-20% of an auxiliary agent, wherein the main functional particles are colored particles coated with Co3 (PO4) 2.8 H2O and ester materials or a combination of the Co3 (PO4) 2.8 H2O and the ester materials; according to the electric arc indicating composition, through the swelling effect of the solvent on the silicon rubber substrate and the synergistic reaction of all the components, the adhesive force and durability of the electric arc indicating composition on the low-surface-energy silicon rubber of the insulator are remarkably improved, and when an electric arc occurs on the surface of the insulator, generated local high temperature triggers the thermochromic combined material to generate irreversible color change; therefore, the position of arc generation can be recorded and indicated visually and permanently.