87 results about "Color developer" patented technology

To provide a thermally conductive grease composition which has high thermal conductivity, has excellent coatability, and allows a temperature distribution to be visually recognized.SOLUTION: A thermally conductive grease composition containing a base oil, a thermally conductive filler, and a capsule pigment encapsulating a leuco dye, a developer, and a color change temperature regulator.SELECTED DRAWING: None

The present invention discloses a rapid detection method for sodium polydisulfide (PDPS). The method comprises preparing a buffer solution and an Elma color developer; preparing multiple sets of sodium polydisulfide (PDPS) solutions of different concentrations; pretreating the sodium polydisulfide (PDPS) solutions with an excess of a boron hydride compound as a reducing agent to reduce the sodium polydisulfide to a thiol-containing compound; and removing the excess reducing agent. An absorbance test is performed to establish a standard curve for the concentration and absorbance of the brightener, and the concentration of the sodium polydisulfide (PDPS) in the electrolyte to be tested is measured using the established standard curve. The method uses a boron hydride compound as a reducing agent and utilizes ultraviolet-visible spectroscopy to rapidly detect the content of the brightener, sodium polydisulfide (PDPS). The method is convenient and simple to operate, provides highly accurate test data, and is applicable to the detection of electroplating bath additives in various systems.

This invention discloses a flame-retardant PBT composite material, comprising the following components by weight: 40-73 parts PBT; 0.8-3.2 parts alkali lignin; 13-18 parts brominated flame retardant; 3-5 parts antimony trioxide; and 0.5-1 parts pentaerythritol. The weight-average molecular weight of the alkali lignin is 3000-10000. By selecting alkali lignin and pentaerythritol with specific molecular weights and using antimony trioxide as a laser color developer, this invention can effectively improve the laser marking defects of PBT composite materials modified with brominated flame retardants and has the advantage of thin-walled flame retardancy.

To provide a recording material in which a printing part is excellent in water resistance and alcohol resistance.SOLUTION: There are provided a developer containing a compound represented by the following general formula (1) (wherein, n represents 0 to 2. R1 represents a halogen atom, a straight or branched chain alkyl group having 1 to 8 carbon atoms, a straight or branched chain alkoxy group having 1 to 8 carbon atoms or a substituent of the formula (2). R2 represents a hydrogen atom, an alkyl group which may be substituted or an aryl group which may be substituted.), a recording material containing the developer, a thermosensitive recording layer containing the recording material and a thermosensitive recording paper having the thermosensitive recording layer.SELECTED DRAWING: None

Disclosed is a heat-sensitive recording body which has, on one side of a paper support, a primer layer containing hollow particles having a hollow ratio of 80 to 98% and a heat-sensitive recording layer containing a leuco dye and a color developer in this order, and on the other side of the paper support, a back layer containing a pigment, wherein the back layer has a Gurley smoothness of 500 seconds or more, and the hollow particles are contained in a proportion of 5 to 30% by mass in the total solid content of the primer layer.

This invention provides a color developer for faded ink stains on Palmyra manuscripts, along with its preparation and application methods, relating to the field of cultural relic conservation and restoration technology. Specifically, it includes component A and component B; component A comprises hydrophobic fumed silica and n-butanol; component B comprises hydrophobically modified cellulose, liquid paraffin, and n-butanol; mixing components A and B yields the color developer for faded ink stains on Palmyra manuscripts. This invention uses low-cost, readily available, and environmentally friendly raw materials to prepare components A and B separately. Through a synergistic effect, the two components enhance the color and clarity of faded ink stains on the surface of the Palmyra manuscript, achieving a re-coloring effect. The prepared color developer is safe and reliable, exhibits significant color development, and also possesses excellent resistance to dry heat aging and ultraviolet aging. Furthermore, it does not alter the appearance of the Palmyra manuscript, has minimal interference with the manuscript itself, and will not damage the manuscript after use.

The invention belongs to the technical field of pesticide residue detection, and particularly discloses a pesticide residue content detection device for vegetable processing, which comprises a bottom plate and supporting legs at the lower part of the bottom plate, a left supporting frame and a right supporting frame are respectively arranged at the two ends of the upper wall of the bottom plate, and a vegetable segmentation cutting mechanism is arranged on the left supporting frame; an intermittent rotating assembly and a juice receiving assembly are arranged on the upper wall of the bottom plate, preparation cylinders are arranged on the intermittent rotating assembly in an array mode around the axis, a supporting plate is arranged at the upper end of the right supporting frame and extends to the position above the intermittent rotating assembly, and a crushing assembly and a liquid preparation assembly are arranged on the supporting plate. And the crushing assembly and the liquid preparation assembly are respectively aligned with the two adjacent preparation cylinders up and down. Vegetables are cut in sections, different parts of the cut vegetables are automatically and respectively crushed, and a microliter enzyme and color developing agent mixed solution is added to prepare a detection sample.

This application relates to a method, apparatus, device, storage medium, and program product for detecting battery pack delamination. The method includes: performing target detection on an initial image of the battery pack using a pre-trained position detection model to obtain the position information of each cell in the battery pack; wherein, in the initial image, each cell is arranged in its original position before disassembly and has been impregnated with a color developer; performing region segmentation based on the position information and the impregnation color of the color developer to determine the bottom surface image of the delamination cell, and performing semantic analysis based on the impregnation color of the color developer to identify marking information within the bottom surface image; and determining the delamination detection result of the battery pack based on the marking information within the bottom surface image. Using this application can improve detection efficiency and increase the detection accuracy of battery pack delamination.

Provided is a developer capable of yielding a thermosensitive recording material that has excellent color developing sensitivity and printing part preservability. The developer contains a compound represented by formula (1). (R1, R2, R3 are groups represented by formula (2), which may be the same or independently different from each other.) (In formula (2), m is 0 or 1, A is a linking group selected from the group consisting of -C(=O)-, -C(=S)-, -C(=O)-NH-, -C(=S)-NH-, -C(=O)-NH-SO2-, -C(=S)-NH-SO2-, -SO2-, -SO2-NH- and -C(=O)-O-, and B is any one selected from the group consisting of an aliphatic hydrocarbon group having 1 to 30 carbon atoms which may have a substituent, an alkoxy group having 1 to 30 carbon atoms which may have a substituent, an aryl group having 6 to 18 carbon atoms which may have a substituent, or an arylalkyl group having 7 to 48 carbon atoms which may have a substituent.)

This invention discloses a skin marking system for ultrasound imaging, a dedicated coupling agent, and its application method, relating to the field of medical ultrasound imaging auxiliary equipment and medical coupling agents. It includes a dedicated photocurable coupling agent and a specially designed ultrasound probe. The dedicated photocurable coupling agent comprises a water-soluble medical ultrasound coupling agent matrix, a photocurable hydrogel precursor, a photoinitiator, and a color developer. The specially designed ultrasound probe includes a probe housing with a built-in ultrasound transducer and a probe end face for contacting the skin. At least one ultraviolet light source is integrated in the central region of the probe end face. The relative position of the ultraviolet light source and the ultrasound transducer is spatially calibrated to establish a preset coordinate mapping relationship between the irradiation area of ​​the ultraviolet light source and the ultrasound scanning area of ​​the ultrasound transducer. This invention achieves simultaneous and precise skin marking and diagnostic guidance for ultrasound imaging through an ultrasound probe integrating an ultraviolet light source and a photocurable dedicated coupling agent.

The present invention relates to a double-layered, two-color erasable thermal paper and a preparation method thereof, and relates to the technical field of printing consumables. The two-color erasable thermal paper of the present invention comprises a protective layer, a thermal coating, and a substrate arranged in sequence from top to bottom; the thermal coating comprises a red thermal coating and a black thermal coating arranged in sequence from top to bottom. The red thermal coating comprises the following raw materials: a color developer A, a red thermal dye, a cosolvent A, an erasing aid A, an epoxy resin adhesive, a polyamide curing agent, and a zinc oxide filler; the black thermal coating comprises the following raw materials: a color developer B, a black thermal dye, a cosolvent B, an erasing aid B, an epoxy resin adhesive, a polyamide curing agent, and a zinc oxide filler. The two-color erasable thermal paper of the present invention has a high color density, does not overlap and bleed after repeated erasure, can be completely erased, and can be repeatedly erasable.

The invention relates to the technical field of cosmetic production, in particular to a preparation method of an anti-inflammatory soothing composition containing plant extracts.The composition comprises a workbench, a guide rod is mounted on the inner side of the workbench, a threaded rod is mounted on the front side of the guide rod, a mounting block is in threaded connection with the outer side of the threaded rod, and a motor is mounted on the right side wall of the guide rod; a clamping cavity is formed in the bottom face of the inner side of the workbench. According to the preparation device, the rotatable injector is arranged and can automatically deflect according to the position relation with the containing vessel, so that the discharging end of the injector is located on the right upper side of the containing vessel all the time, cosmetics can be conveniently and accurately added into the middle of the inner side of the containing vessel, and scattering is avoided; the knocking balls can be driven to rotate circumferentially and knock the convex strips, so that the containing vessel can vibrate, the mixing of the cosmetics and the color developing agent can be accelerated, the reaction rate can be increased, the reaction time can be shortened, and the sample preparation efficiency can be further improved.

The invention relates to the technical field of thermochromic materials, in particular to a mixture of multi-color-gamut and multi-stage controllable thermochromic microcapsules and a preparation method of the mixture, and the mixture of the thermochromic microcapsules comprises at least two thermochromic microcapsules; each thermochromic microcapsule comprises a core material and a wall material, the core material comprises a color developing agent, a leuco agent and a thermal response carrier, the melting points of the thermal response carriers of the thermochromic microcapsules are different, and the unresponsive colors of the thermochromic microcapsules have obvious chromatic aberration. The thermochromic microcapsules with different thermal reaction carrier melting points are synergistically matched, so that a mixed color which is not responded by the thermochromic microcapsules is displayed at low temperature; as the temperature rises, the thermochromic microcapsules change color in sequence from low to high according to the melting point of the thermal reaction carrier, so that clear switching of the color along with the temperature change is realized, and the requirement of multi-section temperature indication is accurately met; and multiple color gamuts can be flexibly allocated, diversified color requirements are met, and the application boundary is greatly widened.

This invention relates to a two-color erasable thermal paper and its preparation method, belonging to the field of printing consumables technology. The two-color erasable thermal paper includes, from top to bottom, a protective layer, a thermal coating layer, a base layer, and a substrate. The components of the thermal coating layer, by weight, include: 10-20 parts of filler B, 20-40 parts of color developer, 30-50 parts of adhesive resin B, 10-20 parts of dye, and 10-20 parts of temperature-regulating agent. The addition of a temperature-regulating agent to the thermal coating layer of this invention enables reversible erasing and writing, while improving its color retention performance, eliminating the need for sensitizers. The heat-insulating filler used in the base layer layer of this invention is a high-hollow-ratio material, which can enhance heat insulation and improve the heat resistance and sensitivity of the thermal two-color reversible erasable paper.

Disclosed is a heat-sensitive recording body, which is a heat-sensitive recording body provided with a primer layer formed on one side of a support and a heat-sensitive recording layer formed on the primer layer, the heat-sensitive recording layer containing a leuco dye and a color developer, the primer layer containing hollow particles and a binding resin, the maximum particle diameter (D100) of the hollow particles being 10 to 30 µm, the particle diameter (D50) of 50 vol% of the hollow particles being 4.0 to 15 µm, the ratio D100 / D50 of the maximum particle diameter (D100) to the particle diameter (D50) of the hollow particles being 1.8 to 3.0, and the vol% of the hollow particles having a particle diameter of 2.0 µm or less being 1% or less.

The present invention relates to a device for virus screening based on a bowl-shaped centrifugal microfluidic chip, wherein the device comprises: a clamping disk interlocked with a base disk and a cover disk; a conical chip layer matched with the clamping disk and configured as a hollow cone with a microporous wall structure; a bowl-shaped chip arranged in a three-dimensional intersecting shape formed by the conical chip layer and the clamping disk; and a motor shaft inserted into the center of the clamping disk, the motor shaft being used to centrifuge and mix the bowl-shaped chip. The device for virus screening based on a bowl-shaped centrifugal microfluidic chip of the present invention does not require professional operators and is free of aerosol contamination. It takes only 3 minutes to input a trace sample, freeze-dried powder, reagents, and a color developer, and then achieves fully automatic operation and visual rapid detection of multiple targets in the sample through centrifugal mixing and positive pressure drive. This can significantly improve detection accuracy and screening speed, and is widely used in airport customs, community homes, and other places.

The application belongs to the technical field of anti-counterfeiting, and particularly relates to an anti-counterfeiting pigment, a preparation method and application thereof. The application provides an anti-counterfeiting pigment, which comprises the following raw materials in parts by weight: 30-45 parts of nanocellulose suspension; 0.3-12 parts of color developer; 6-15 parts of color developing agent; 35-53 parts of emulsifying wax; 1.5-20 parts of polyethylene glycol; 12-25 parts of stearic acid; 2-15 parts of talc; and 5-10 parts of nanometer titanium dioxide, wherein the concentration of the nanocellulose suspension is 2-5%. The nanometer titanium dioxide and the nanocellulose suspension are added to the anti-counterfeiting pigment, and the nanometer titanium dioxide, the nanocellulose suspension, the color developer, the color developing agent, the emulsifying wax, the polyethylene glycol, the stearic acid and the talc are combined to prepare the pigment, which is added to anti-counterfeiting ink, so that the adhesion of the anti-counterfeiting ink and paper can be improved.

Disclosed is a phenol-free heat-sensitive recording material comprising: (a) a base material; from one side close to the base material, the coating sequentially comprises: (b) a bottom coating; and (c) a heat-sensitive layer; wherein the heat-sensitive layer includes: a first developer containing a sulfonamide compound represented by the following formula (1): wherein R1 and R2 may be the same or different and each independently represents a hydrogen atom, an alkyl group having 1-4 carbons, an alkoxy group having 1-4 carbons, or a halogen atom; one or more second color developing agents containing at least one phenyl ureide compound represented by the following formula (2): wherein R3 and R4 may be the same or different; and each independently represents a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arsulfonylamino group, a toluenesulfonyl group, a toluenesulfonyloxy phenyl group, a monoalkylamino group, a dialkylamino group, or an arylamino group; and one or more stabilizers selected from the group consisting of compounds represented by formulae (3) and (4) and derivatives thereof.

Disclosed is a heat-sensitive recording material comprising the following: a support having at least one colored surface; and a light-scattering layer on the colored surface, wherein the light-scattering layer contains hollow polymer particles and a clarifying agent, the content of the hollow polymer particles is 6 to 35 mass % based on the total solids content of the light-scattering layer, the content of the clarifying agent is 1 part by mass or more, on a solids basis, per part by mass of the hollow polymer particles, and the light-scattering layer is substantially free of a dye precursor and a color developer, and wherein A) the clarifying agent consists of a fatty acid amide, or B) the clarifying agent comprises a combination of a fatty acid amide and at least one member selected from the group consisting of a compound represented by the following formula (1) and 1,2-bis(phenoxymethyl)benzene;wherein in the formula, Xs are the same or different, and each represents CH3 or Cl.

Disclosed is a heat-sensitive recording body which has, in order on a support, a primer layer containing hollow particles, a binder, and inorganic pigment I, and a heat-sensitive recording layer containing a leuco dye, a color developer, and inorganic pigment II, and which is characterized by containing, as the color developer, an N,N'-diaryl urea-based compound represented by the following formula (1) (in the formula, R2 represents an alkyl group having 1 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or an aryl group having 6 to 12 carbon atoms, and the aralkyl group and the aryl group are each optionally substituted with an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a halogen atom, and each R2 can be the same as or different from the others, A1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and each A1 can be the same as or different from the others), and, as the inorganic pigment II, a pigment having an oil absorption of 130 ml / 100 g or less,

The invention discloses an efficient detection device for heavy metal ions in food, the structure of the efficient detection device comprises a storage mechanism, a shunting mechanism and a detection mechanism, the lower end of the storage mechanism is installed in the upper end of the shunting mechanism in a clearance fit manner; color developing agents are accurately discharged into the corresponding placing cylinders at the upper end of the rotating base plate one by one to be in contact with food for detection work, the mode that the color developing agents are manually dripped on the food one by one for corresponding detection is replaced, and the convenience of detection of various heavy metal ions is improved; the motor is started through the control panel, the motor drives the rotating rod, the blocking pieces and the crushing cutter to synchronously rotate, the eight blocking pieces can abut against food downwards, it is ensured that the food makes contact with the crushing cutter, effective crushing work is conducted, and the crushed food forms a powder state; the powder state can be better in comprehensive contact and mixing with a color developing agent, so that the comprehensiveness and the accuracy of detection of the heavy metal ions in the food are improved.

The invention provides a hot compress material and a preparation method thereof.The hot compress material comprises a heating medium and at least one temperature change indicator mixed in the heating medium and used for monitoring the temperature of the heating medium, and the temperature change indicator is of a microcapsule structure with a core material and a wall material; the core material is composed of an electron-donating leuco dye, an electron-withdrawing color developing agent and a solvent, and the wall material is composed of resin. The visual temperature change indicator is added in the heating medium, so that the temperature change of each part of the hot compress material can be visually observed, and people can visually know whether the hot compress material reaches the preset temperature or not and whether the temperature of the hot compress material is consistent or not.

The present invention relates to a heat-sensitive recording material comprising: a support substrate having a first side and a second side facing away from the first side; and a heat-sensitive color-forming layer arranged on the first side of the support substrate, wherein the heat-sensitive color-forming layer comprises at least one color former, at least one color developer, and at least one stabilizer; wherein the at least one stabilizer is selected as a compound of formula (1), Ar 1 -SO2-NH-C6H4-SO2-C6H4-NH-CO-NH-Ar 2 , where Ar 1 and Ar 2 independently of each other are an unsubstituted or substituted phenyl residue, and / or wherein at least one stabilizer is selected as a compound of formula (2), Ar 1 -NH-CO-NH-C6H4-SO2-O-C6H4-NH-CO-NH-Ar 2 , where Ar 1 and Ar 2independently of one another are an unsubstituted or substituted phenyl, naphthyl and / or heteroaryl residue; wherein the weight ratio of stabilizer to color developer in the heat-sensitive color-forming layer is selected such that, according to stability test 1 defined in the description, after a storage period of 7 days under dry storage conditions, the remaining optical density of the heat-sensitive color-forming layer is at least 85% of the original optical density of the heat-sensitive color-forming layer before storage, and / or that, according to stability test 2 defined in the description, after a storage period of 7 days under humid storage conditions, the remaining optical density of the heat-sensitive color-forming layer is at least 80% of the original optical density of the heat-sensitive color-forming layer before storage;and / or that, according to the stability test 3 defined in the description, after a storage period of 7 days, the remaining optical density of the heat-sensitive color-forming layer is at least 70% of the original optical density of the heat-sensitive color-forming layer before storage.

The present invention provides a heat-sensitive recording material which has improved thermal responsiveness and improved stability of the print part and the background in comparison to conventional heat-sensitive recording materials that contain a non-phenolic compound as a color developer. The present invention provides a heat-sensitive recording composition which contains a color former, a color developer and a stabilizer, wherein: N-[2-(3-phenylureido)phenyl] benzenesulfonamide or N-(p-toluenesulfonyl)-N′-(3-p-toluenesulfonyloxyphenyl) urea is contained as the color developer, and 1,3-diphenyl urea is contained as the stabilizer.

The purpose of the present invention is to suppress the generation of stripes in an image forming apparatus capable of color printing and monochrome printing. The image forming apparatus (1) includes first to third developing rollers bearing a color developer, a fourth developing roller bearing a black developer, first to fourth photosensitive drums corresponding to the first to fourth developing rollers, and a processing motor driving the first to fourth developing rollers and the first to fourth photosensitive drums. And a first output gear (781), a first gear train (791), and a second gear train (792) that are disposed coaxially with the processing motor and that output driving force from the processing motor. The first gear train (791) includes a first intermediate gear (79A) that meshes with the first output gear (781), and transmits the driving force of the processing motor to the first to fourth developing rollers. A second gear train (792) is provided with a second intermediate gear that meshes with the first output gear, and transmits the driving force of the processing motor to the first to fourth photosensitive drums.

A water hardness test paper includes a carrier and a water hardness detection substance provided on the carrier, wherein the water hardness detection substance includes a color developer which includes one or more of calcium magnesium reagent, chrome black T, calcium carboxylic acid, azo arsine 1, and azo arsine 3.

The present invention relates to the use of one or more of compounds of formula (I) wherein R1, R2, R3, R4, R5 and R6 are independent from each other selected from the group consisting of hydrogen, hydroxy, methyl, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy, pentoxy, isopentoxy, and neopentoxy, wherein at least two of R1, R2, R3, R4, R5 and R6 are different from hydrogen, and at least one of R1, R2, R3, R4, R5 and R6 is hydroxy, n is an integer between 1 and 5, and m is an integer between 1 and 5, as a color developer for leuco dyes.

The present application aims to provide a thermal recording material which is low in safety concerns of endocrine disruptors, excellent in color development and light resistance, and excellent in heat resistance. The thermal recording material (1) has a configuration in which a thermal recording layer (3) is layered on a substrate (2). The thermal recording layer (3) contains a color developer, a non-phenol color former, and a non-phenol ultraviolet absorber. The non-phenol ultraviolet absorber contains an oxanilide ultraviolet absorber. The non-phenol color former preferably contains a compound represented by the following formula (1) and / or a compound represented by the following formula (2). (The definitions of the symbols in the following formulae (1) and (2) are as described in the specification).

A packaging material for solid-state batteries according to one aspect of the present disclosure contains sulfide-based solid electrolytes, including at least a substrate layer, a barrier layer, and a sealant layer in this order, in which at least one of the layers constituting the packaging material contains a color developer that changes color when reacting with hydrogen sulfide.

A heat-sensitive recording medium includes a support, a heat-sensitive recording layer including a leuco dye and a developer disposed directly or indirectly on the support, and a protective layer disposed directly or indirectly on the heat-sensitive recording layer. The color developing agent includes a first color developing agent having a specific structure and a second color developing agent having a specific structure. The protective layer includes a resin including a styrene-maleic acid copolymer or a styrene-(meth) acrylic acid copolymer.