34 results about "Interference color" patented technology

The invention discloses preparation of PVA-CP hydrogel with thermal stimulation patterning capability and application of the PVA-CP hydrogel in information encryption. The crystallinity of PVA is adjusted through the ion effect of the NaCl solution, so that the orientation degree of the hydrogel is changed, and PVA-CP hydrogel with different interference colors can be obtained. And local PVA crystal regions can be quickly dissociated through local thermal stimulation, so that different interference patterns are created. In addition, two novel encryption strategies based on the interference color angle dependence characteristic are provided, PVA-CP hydrogel modules with different orientation directions are packaged, and the rotation angle and the interference color serve as double decryption keys, so that the information security is remarkably enhanced.

The utility model discloses a colorful optical film, a colorful transfer printing film, a colorful protective film, a colorful colored film, a colorful color-changing film, a colorful polarizing film, a colorful polarizing color-changing film, an anti-fog polarizing color-changing colorful film and other optical films which are all provided with colorful coatings as bases, can replace the existing electroplating technology, and has the beneficial effects brought by electroplating. And meanwhile, the defects of an electroplating process can be overcome, the production efficiency is improved, and energy conservation and emission reduction are achieved. The working principle of the colorful film is based on the anisotropy and birefringence optical performance of liquid crystal and the Bragg reflection principle, multi-layer superposition interference color development is achieved, and therefore the lower the transmittance of the ground color is, the better the colorful color development effect is.

This invention provides a method for analyzing the highest temperature experienced by 304 stainless steel and its components. When 304 stainless steel and its components operate in an air atmosphere and high-temperature environment, their surface undergoes high-temperature oxidation, producing an extremely thin and dense colorless and transparent oxide film that exhibits interference colors. The color of these interference colors is related to the thickness of the oxide film. After a certain period of high-temperature oxidation, the thickness of the oxide film produced by the 304 stainless steel and its components is related to the highest temperature experienced. The L* and a* values ​​of the surface color of the 304 stainless steel and its components are measured using a spectrophotometer. These values ​​are then substituted into the formula provided in this invention to calculate the highest temperature experienced by the 304 stainless steel and its components. The advantages of this method are: no prior test preparation is required; no observation is needed while the 304 stainless steel and its components are in operation; and it is non-contact, thus not damaging the surface of the test object.

The present invention discloses a method for determining the color quality of images for visual inspection in industrial environments. The method divides the detection field of view of an imaging acquisition lens into multiple areas, uses a 24-color standard color card as a reference calibration sample, places the samples in the different divided areas in sequence, and acquires corresponding true color images. The grayscale values ​​of the true color image of each area and the grayscale color blocks on the standard color card are calculated, and by analyzing the correlation between the two, it is determined whether the image acquisition effect meets the color card standard in the grayscale space. Then, the RGB values ​​of the interference colors of the detection object in the standard color card and the true color image are cross-judged. After verification, the coefficient of variation of the RGB values ​​of the same color block in the true color image in different areas is calculated, and this coefficient of variation is used to determine whether different areas have an impact on the color quality of image acquisition. The method is simple, effective, and has a fast detection speed, and has broad application prospects.

The present invention is directed to effect pigments with solvochromic properties. These effect pigments have a structure comprising a substrate in platelet form and a coating applied to the substrate, wherein the coating comprises: optionally a layer (1) comprising or consisting of at least one of tin oxide, tin hydroxide and / or tin oxide hydrate, a layer (2) comprising at least one of metal oxide, metal hydroxide and / or metal oxide hydrate, and a layer (3) comprising at least one of metal oxide, metal hydroxide and / or metal oxide hydrate, wherein the layers (2) and (3) comprise in their metal oxide, metal hydroxide and / or metal oxide hydrate in a majority two different metal ions from the group consisting of Ti, Fe, Sn or Zr and a further spacer layer (4) being located in between layers (2) and (3), wherein layer (4) has a porous structure comprising cavities and connectors. The solvochromic properties denote to the effect pigment having a first interference color under ambient atmosphere which changes reversibly to a second interference color, when the effect pigment comes into contact with a solvent.

An optical security element may be printed on a substrate. The optical security element may include a plurality of bifunctional pigment flakes provided in a binder. A bifunctional pigment flake in the plurality of bifunctional pigment flakes may comprise a first surface having a diffraction grating relief with a first modulation, and a second surface having a second modulation that is smaller than the first modulation. The plurality of bifunctional pigment flakes are arranged such that, in a presence of incident light, diffraction colors are exhibited by a first subset of the plurality of bifunctional pigment flakes that are in a first region of the optical security element, and an interference color is exhibited by a second subset of the plurality of bifunctional pigment flakes that are in a second region of the optical security element.

The invention relates to an exterior part (10) comprising a substrate (11) comprising a coating (12) consisting of the following successive superimposed layers: - an opaque or semi-opaque reflective layer (121) configured to have a reflectance of at least 90% for wavelengths of 600 nm to 780 nm, - a transparent or semi-transparent layer (122) having a refractive index of 1.45 to 2.8 for a wavelength of 630 nm, - an absorbing layer (123), said layer imparting a predetermined interference color to the coating (12).

The present invention relates to: a pearlescent pigment capable of implementing a pearlescent effect without containing titanium dioxide (TiO2); and a cosmetic composition containing same, and, more specifically, to: a pearlescent pigment on which a coating layer that is applied to a plate-shaped substrate and comprises zinc sulfide (ZnS) is formed; and a cosmetic composition containing same. The pearlescent pigment of the present invention exhibits various interference colors so as to have a pearlescent effect, without containing TiO2, which has recently been classified as an inhalation carcinogen and is banned from use. In addition, the cosmetic composition containing the pearlescent pigment, of the present invention, has excellent gloss, color development, texture, adherence, spreadability, lasting power and the like, and can ensure stability in terms of pH, odor and the like.

An optical security element may be printed on a substrate. The optical security element may include a plurality of bifunctional pigment flakes provided in a binder. A bifunctional pigment flake in the plurality of bifunctional pigment flakes may comprise a first surface having a diffraction grating relief with a first modulation, and a second surface having a second modulation that is smaller than the first modulation. The plurality of bifunctional pigment flakes are arranged such that, in a presence of incident light, diffraction colors are exhibited by a first subset of the plurality of bifunctional pigment flakes that are in a first region of the optical security element, and an interference color is exhibited by a second subset of the plurality of bifunctional pigment flakes that are in a second region of the optical security element.

A pigment flake may comprise a multilayer optical structure. The multilayer optical structure may have a first surface with a first modulation that corresponds to a relief of a diffraction grating. The multilayer optical structure may have a second surface having a second modulation, with the second surface being opposite from the first surface and the second modulation being smaller than the first modulation such that the second surface is comparatively flatter than the first surface. The multilayer optical structure may exhibit diffraction colors for a first range of angles of the multilayer optical structure with respect to an angle of incident light, and may exhibit an interference color for a second range of angles of the multilayer optical structure with respect to the angle of the incident light.

The invention discloses a wear-resistant anti-fingerprint film layer and a preparation method thereof. The preparation method comprises the following steps: cleaning and activating the surface of a base material; spraying UV primer on the surface of the base material, and carrying out ultraviolet curing treatment to obtain a UV primer coating; preparing a metal layer on the UV primer coating through vacuum sputtering coating; preparing a wear-resistant color layer on the metal layer through vacuum sputter coating; preparing a silicon oxide layer on the wear-resistant color layer through vacuum sputter coating; an anti-fingerprint coating is grown outside the silicon oxide layer through vacuum evaporation coating, a raw material for evaporation of the anti-fingerprint coating is a fluorine-containing compound, the anti-fingerprint coating is combined with the surface of the silicon oxide after being evaporated to the surface of the product, and a hydrophobic anti-fingerprint layer is formed on the surface of the silicon oxide layer. The surface of the plastic substrate and the surface of the glass substrate are decorated, meanwhile, the wear resistance and the fingerprint resistance of the surface of the decoration layer of the plastic substrate and the glass substrate are greatly improved, surface finish paint does not need to be coated, the color of the color layer is brighter, and the interference color effect of the interference film layer is easily reflected.

An article with a hollow body defined by a wall with an inner surface and an outer surface. The wall is comprised of 2 or more layers including a first skin layer with effect pigments and an opaque core. In some examples, the effect pigment can be a special effect pigment adapted to produce at least one interference color.

Weather stable pearlescent pigment having a basic pearlescent with an interference color which comprises a transparent platelet-shaped substrate and at least one metal oxide layer with a refractive index >1.8 and on top of this basic pearlescent pigment a weather stabilizing top coating comprising at least one metal oxide and an organofunctional surface modification, wherein a) for a basic pearlescent pigment with silvery interference color the weather stabilizing top coating consists of a first metal oxide of a rare earth metal M1 from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and mixtures thereof, or b) for a basic pearlescent pigment with a colored interference color or a silvery interference color the weather stabilizing top coating comprises a first metal oxide of a rare earth metal M1 from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and mixtures thereof, and a second metal oxide from a second metal M2 from the group consisting of Si, Al, Zn, Mg, Zr, Sn and mixtures or combinations thereof, and in each case a) or b) the organofunctional surface modification comprises organofunctional silanes or water-based pre-condensated organofunctional silanes.

The invention relates to an exterior part (10) comprising a substrate (11) comprising a coating (12) consisting of the following successive superimposed layers: - an opaque or semi-opaque reflective layer (121) configured to have a reflectance of at least 90% for wavelengths of 600 nm to 780 nm, - a transparent or semi-transparent layer (122) having a refractive index of 1.45 to 2.8 for a wavelength of 630 nm, - an absorbing layer (123), said layer imparting a predetermined interference color to the coating (12).

The present invention addresses the problem of providing: a method for producing an optical laminate which is capable of producing an optical laminate that can suppress the occurrence of interference color unevenness when used in an organic EL display device; the optical laminate; a polarizing plate; an antireflection film; a method for producing an optical laminate according to the present invention comprises a step for directly coating a liquid crystal composition on an optically anisotropic layer (A) in which an oriented liquid crystal compound is fixed, said optically anisotropic layer (A) having a phase difference but not having a lambda / 4 function, said optically anisotropic layer (A) having a phase difference but not having a lambda / 4 function, said optically anisotropic layer (A) satisfying the following requirements 1 or 2, and said optically anisotropic layer (A) having a phase difference but not having a lambda / 4 function. And forming a laminate having a [lambda] / 4 function. Condition 1: The optically anisotropic layer (A) has been surface-treated. Condition 2: The optically anisotropic layer (A) is formed from a liquid crystal composition containing a photo-alignment polymer.

This invention provides a solar cell structure and its fabrication method, a tandem cell, and a photovoltaic module. The solar cell structure includes a silicon wafer substrate with a coating layer deposited on it. A high-transmittance gradient coating is provided on the coating layer, comprising an optical adapter layer and a color homogenizing layer, the color homogenizing layer being disposed on the upper surface of the optical adapter layer. This solar cell structure eliminates light interference color difference caused by uneven coating thickness by providing an optical adapter layer matching its refractive index gradient on the coating layer, while simultaneously improving the adhesion between the coating and the original coating layer, preventing interlayer peeling. By printing a low-refractive-index color homogenizing layer on the optical adapter layer, the uniform light scattering and transmission characteristics completely mask the color differences of the original coating layer, achieving uniform color across the entire surface of the cell. Furthermore, this layer has a surface contact angle ≥85°, thus possessing hydrophobic and anti-fouling properties, improving the environmental adaptability of the cell.

Weather stable pearlescent pigment having a basic pearlescent with an interference color which comprises a transparent platelet-shaped substrate and at least one metal oxide layer with a refractive index >1.8 and on top of this basic pearlescent pigment a weather stabilizing top coating comprising at least one metal oxide and an organofunctional surface modification, wherein a) for a basic pearlescent pigment with silvery interference color the weather stabilizing top coating consists of a first metal oxide of a rare earth metal M1 from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and mixtures thereof, or b) for a basic pearlescent pigment with a colored interference color or a silvery interference color the weather stabilizing top coating comprises a first metal oxide of a rare earth metal M1 from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and mixtures thereof, and a second metal oxide from a second metal M2 from the group consisting of Si, Al, Zn, Mg, Zr, Sn and mixtures or combinations thereof, and in each case a) or b) the organofunctional surface modification comprises organofunctional silanes or water-based pre-condensated organofunctional silanes.

The application discloses a dry particle pre-treatment method for digital glue, and belongs to the technical field of ceramic tile production and processing. The method comprises the following steps: body pre-treatment, bottom glaze spraying, digital positioning glue spraying, dry particle distribution, surface glaze spraying, design drawing printing, protective glaze spraying and kiln firing. The application completely solves the problem of dry particle interference color development in the existing process, and the color saturation is greater than or equal to 85%, the color difference Delta E is less than or equal to 1.5, the glaze compatibility is improved, the glaze surface defect rate is less than or equal to 1.2%, the three-dimensional relief texture and the warm touch are considered, the ceramic tile design space is expanded, the process is mature and suitable for industrial production, and the application has a wide application prospect.

A method for evaluating an interference color having Step 1 to Step 3 described below, and evaluating an interference color by one kind of variance or a combination of two or more kinds of variance that are calculated by Step 4 described below.Step 1: Display a surface light source including a polarizer in white, and emit linearly polarized white light L1 from the surface light source.Step 2: Measure in-plane distribution of tristimulus values with respect to L1. Define the tristimulus values of L1 measured in the present step as tristimulus values 1. Step 3: Display the surface light source in white in a state where an optical film is installed on the surface light source. Subsequently, measure in-plane distribution of tristimulus values with respect to light L2 that is LI transmitted through the optical film. Define the tristimulus values of L2 measured in the present step as tristimulus values 2. Step 4: Divide an inside of a plane where tristimulus values 1 and tristimulus values 2 are measured into a plurality of sections. Calculate a color parameter for each of the sections from tristimulus values 1 and tristimulus values 2. Subsequently, calculate the variance of color parameters of all the sections. Carry out calculation of the variance for one kind or two or more kinds of color parameters.

The invention provides a method for analyzing the highest temperature experienced by 304 stainless steel and a workpiece thereof. 304 stainless steel and a workpiece thereof work in an air atmosphere and a high-temperature environment, a layer of extremely thin and compact colorless transparent oxide film is generated on the surface through high-temperature oxidation, an interference color is displayed, and the color of the interference color is related to the thickness of the oxide film. After 304 stainless steel and a workpiece thereof are subjected to high-temperature oxidation for a certain period of time, the thickness of an oxidation film is related to the highest temperature. The L * value and the a * value of the surface color of the 304 stainless steel and the workpiece thereof are measured by a spectrophotometer and substituted into the formula provided by the invention, and the highest temperature experienced by the 304 stainless steel and the workpiece thereof can be calculated. The method has the advantages that test preparation in the early stage is not needed; observation is not needed when 304 stainless steel and workpieces thereof work; a non-contact mode is adopted, and the surface of a tested object is not damaged.

The present invention discloses a verification method, device, and apparatus for verifying a verification code. The method comprises: generating a verification code image; generating a verification-passing color block based on the color information of the verification code image; comparing the verification-passing color block to generate an interference color block different from the verification-passing color block; sending prompt rule information, the verification code image, the verification-passing color block, and the interference color block to a client; receiving at least one target color block selected from the verification-passing color block and the interference color block sent by the client; verifying whether the target color block is the same as the verification-passing color block, obtaining a verification result, and sending the result to the client. Through the above-mentioned method, the present invention realizes the diversity of verification code styles and displays, increases the difficulty of cracking the verification code, and increases the number of interactions.

This disclosure relates to a display device, and according to an aspect of this disclosure, the display device includes: a display panel, a polarizing film disposed on the display panel, and a plurality of retardation films disposed on the polarizing film and having different in-plane phase differences Rin, wherein the in-plane phase difference Rin of each of the plurality of retardation films is 10000 nm or greater. According to exemplary embodiments of this disclosure, color distortion such as color irregularities, color shifts, and interference colors is improved, and the recognition of rainbow spots is minimized.

A display device having a display panel, a polarization film disposed on the display panel, and a plurality of retardation films disposed on the polarization film. Each of the plurality of retardation films has different in-plane phase differences Rin, and the in-plane phase difference Rin of each of the plurality of retardation films is 10000 nm or larger. According to an example embodiment, a color distortion, such as color irregularity, a color shift, and interference colors, is improved and the visibility of the rainbow stain is minimized or reduced.

A method for forming a multilayer film, including: a step (1) of applying an aqueous two-pack first colored coating material on an automobile outer panel to form an uncured first colored coating film; a step (2) of applying an aqueous one-pack white color coating material on the uncured first colored coating film to form an uncured white coating film; a step (3) of setting the uncured white coating film for 4 minutes or more such that a resultant coating film has a solid content of 50% by mass or more; a step (4) of applying an aqueous one-pack interference color coating material on the uncured white coating film having the solid content of 50% by mass or more to form an uncured interference color coating film; a step (5) of applying a solvent-based two-pack clear coating material on the uncured interference color coating film to form an uncured clear coating film; and a step (6) of heating the coating films formed in the steps (1) to (5) at a temperature of 75° C. or more and to 100° C. or less to simultaneously cure the coating films.

The invention relates to an optical security element. The optical security element may be printed on a substrate. The optical security element may include a plurality of bifunctional pigment flakes disposed in an adhesive. A bifunctional pigment sheet of the plurality of bifunctional pigment sheets may include a first surface including a diffraction grating relief having a first modulation and a second surface having a second modulation less than the first modulation. The plurality of bifunctional pigment flakes are arranged such that in the presence of incident light, a diffractive color is presented by a first subset of the plurality of bifunctional pigment flakes located in the first region of the optical security element and an interfering color is presented by a second subset of the plurality of bifunctional pigment flakes located in the second region of the optical security element.

To provide a nacreous pigment having a good silver color and a method for producing the same. 【Solution means】A nacreous pigment composition having a silver interference color containing a plurality of multilayer nacreous pigments, wherein the plurality of multilayer nacreous pigments are multilayer nacreous pigments having three layers of a high refractive index layer (a) of a metal oxide, a low refractive index layer (b) of silica, and a high refractive index layer (c) of a metal oxide on the surface of a flaky substrate, Each multilayer nacreous pigment has an L * value in the range of 57.00 to 79.00, an a * value in the range of -7.00 to 7.70, and a b * in the range of -16.00 to 15.00, but those having an a * value in the range of -4.50 to -1.00 and a b * in the range of -6.00 to -1.00 are substantially not included, The nacreous pigment composition having a silver interference color after mixing the plurality of multilayer nacreous pigments has an L * value in the range of 60.00 to 80.00, an a * value in the range of -4.50 to -1.00, and a b * in the range of -6.00 to -1.00, A nacreous pigment composition having a silver interference color.

To provide a method capable of objectively evaluating an interference color by the influence of an optical film.SOLUTION: A method for evaluating an interference color, comprising the following steps 1 to 3, wherein the interference color is evaluated by one type of dispersion or a combination of two or more types of dispersions calculated from the following step 4: Step 1: A surface illuminant including a polarizing element is made to display white color, and linearly polarized white color light L1 is emitted from the surface illuminant. Step 2: The in-plane distribution of tristimulus values is measured at the L1 portion. The tristimulus values of the L1 portion measured in this step is defined as tristimulus values 1. Step 3: The surface light source is displayed in white while the optical film is placed on the surface light source. Then, the in-plane distribution of tristimulus values is measured with respect to light L1 that is the L2 transmitted through the optical film. The tristimulus values of the L2 portion measured in this step is defined as tristimulus values 2. Step 4: The plane in which the tristimulus values 1 and the tristimulus values 2 are measured is divided into a plurality of sections. A color parameter is calculated for each section from the tristimulus values 1 and the tristimulus values 2. Then, the variance of the color parameters of all the sections is calculated. The calculation of the variance is performed for one or more color parameters.

The present disclosure relates to bifunctional pigments. The pigment sheet may include a multi-layer optical structure. The multilayer optical structure may have a first surface with a first modulation corresponding to the relief of the diffraction grating. The multi-layer optical structure may have a second surface having a second modulation, where the second surface is opposite the first surface, and the second modulation is less than the first modulation such that the second surface is relatively flatter than the first surface. The multi-layer optical structure may exhibit a diffractive color for the multi-layer optical structure with respect to a first angular range of incident light angles, and may exhibit an interference color for the multi-layer optical structure with respect to a second angular range of incident light angles.

A method for forming a multilayer film, including: a step (1) of applying an aqueous two-pack first colored coating material on an automobile outer panel to form an uncured first colored coating film; a step (2) of applying an aqueous one-pack white color coating material on the uncured first colored coating film to form an uncured white coating film; a step (3) of setting the uncured white coating film for 4 minutes or more such that a resultant coating film has a solid content of 50% by mass or more; a step (4) of applying an aqueous one-pack interference color coating material on the uncured white coating film having the solid content of 50% by mass or more to form an uncured interference color coating film; a step (5) of applying a solvent-based two-pack clear coating material on the uncured interference color coating film to form an uncured clear coating film; and a step (6) of heating the coating films formed in the steps (1) to (5) at a temperature of 75° C. or more and to 100° C. or less to simultaneously cure the coating films.

Provide a weather-resistant pearlescent pigment that passes the enhanced weather resistance test procedure, without significant change in the interference color and without significant gloss degradation compared to the initial pearlescent pigment without top coating. 【Solution】A weather-resistant pearlescent pigment having a basic pearlescent luster with an interference color, comprising a transparent small plate-shaped substrate and at least one metal oxide layer with a refractive index exceeding 1.8, and having a weather-resistant top coating with at least one metal oxide and an organic functional surface modification on top of this basic pearlescent pigment. (a) For the basic pearlescent pigment, the weather-resistant top coating consists of a rare earth metal M from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof 1 of a first metal oxide, and (b) for the basic pearlescent pigment having a colored interference color or a silver interference color, the weather-resistant top coating contains a rare earth metal M from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof 1 of a first metal oxide, and a second metal oxide from a second metal M2 is selected from the group consisting of Si, Al, Zn, Mg, Zr, Sn, and mixtures or combinations thereof. In each case of (a) or (b), the organic functional surface modification includes an organic functional silane or a water-based precondensed organic functional silane.