10 results about "Colour difference" patented technology

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 application discloses a kind of pier reserved hole flow state plugging methods, it is related to pier reserved hole flow state plugging technical field, technical scheme is, S1, making horn mouth mould and its fixed tool;S2, cleaning reserved hole and wetting;S3, installation horn mouth mould;S4, color grouting material mix ratio design and making color card;S5, color grouting material mixing;S6, grouting color grouting material;S7, dismantling, polishing smooth, maintenance.The beneficial effects of the present application are: the present application can efficiently complete the plugging of various reserved holes, compared with dry hard pressure grouting plugging, the plugging using the fluidity of color grouting material is more compact, the color grouting material has higher strength and micro-expansion characteristics, effectively avoiding shrinkage cracks, by adding white portland cement to adjust the color, the plugging site has no obvious color difference with the pier, and it is not easy to peel off and powder after polishing and smoothing.

This invention discloses a gradient metering standard color masterbatch and its application method, belonging to the field of plastic color matching technology. Addressing the problems of poor dispersibility of traditional color masterbatches, difficulty in adapting customized color masterbatches to matching parts with color differences, and serious pollution from pigment processing, this invention first prepares micro-volume color masterbatches with a diameter and length ≤1mm, enabling uniform dispersion with a single color addition of 0.5% or more. It also establishes a gradient metering color masterbatch library, setting the pigment content in 500g of color masterbatch according to a geometric progression, achieving a micro-color adjustment capability of 0.01g / 100kg. During color matching, a color masterbatch of corresponding concentration is selected based on the target pigment usage. The addition amount is accurately calculated using the formula: weight = target usage / concentration × 500, allowing for the mixing of multiple color masterbatches. This invention combines the flexible fine-tuning capability of pigments with the cleanliness and stability of color masterbatches, completely eliminating pigment pollution, eliminating shear force interference, significantly improving color consistency between complex components, and adapting to intelligent manufacturing.

This utility model relates to a fabric inspection table, including a support, a worktable mounted on the support, a lamp body for detecting fabric color, a first roller to keep the fabric always in contact with the worktable, a take-up roller, an unwinding roller, a leveling component for leveling the fabric on the worktable, and an intermittent device for intermittently moving the fabric. The intermittent device is mounted on the support, and its active end is connected to the unwinding roller. The first roller is mounted on both sides of the worktable and is tangent to the top surface of the worktable. The leveling component moves along the worktable. The light source of the lamp body faces the worktable. The take-up roller and the unwinding roller are respectively mounted on both sides of the support. This invention solves the problem that fabric inspection often involves moving the fabric at a constant speed using two sets of rollers, detecting color differences during the fabric's movement. However, the movement of the fabric makes it difficult for workers to accurately capture the location of color differences, leading to inaccurate observations. Furthermore, the fabric needs to be marked with cut sections and leveled during movement.

Food contact materials with a color difference ΔE <20 from the L*a*b* coordinates to a color number starting with "1" of the RAL color chart according to the color model according to EN ISO 11664-4, as determined according to DIN 5033 (1979), based on compositions containing at least one polyester or polystyrene and a colorant consisting of at least one yellow methine dye or at least one yellow quinophthalone dye and at least one ethylene oxide-propylene oxide block copolymer with a central propylene oxide unit between two ethylene oxide units, a molar mass determined from the OH number to be determined according to DIN / ISO 4629, in the range of 5500 to 7500 g / mol, a mass fraction of ethylene oxide units in the range of 45 to 55 wt.% and a flocculation point to be determined according to EN 1890 method B in the range of 70°C to 85°C.

The utility model relates to a kind of shell of garbage disposer and garbage disposer, shell includes inner shell and the outer shell of being set in the outer of inner shell, the outer shell includes upper half shell and lower half shell sequentially spaced in up and down, the gap gap between the upper half shell and lower half shell is reserved in up and down direction, the part of the inner shell and the gap gap inner and outer opposite is visible by the gap gap for outside. Shell adopts the architecture of inner and outer shell nesting, gap gap is set between the upper half shell of outer shell, the visible part of inner shell naturally forms second color band, without traditional double-color injection molding or color separation spraying process, directly eliminate multiple forming process and supporting mould investment, production cost is greatly reduced. Since the color difference of the inner shell, outer shell of shell is realized by the material original color rather than coating, effectively solve the color difference control and fading hidden danger of double-color injection molding or color separation spraying mode in prior art, prolong the service life of product.

The application discloses a method and system for color correction of printed textiles, which links multiple differences in the color correction process and only corrects the formula concentration, reduces errors and improves color correction accuracy. Different color correction formulas are used according to the difference between the actual dyeing sample and the standard color sample, and the application range is wider. The technical scheme comprises the following steps: 1) obtaining an initial formula based on the color data of the standard color sample; 2) dyeing a blank sample according to the initial formula to obtain an actual dyeing sample, measuring the color data and calculating the color difference value between the actual dyeing sample and the standard color sample; 3) comparing the actual dyeing sample color difference value with a threshold value, if not satisfied, obtaining a formula according to the color data of the actual dyeing sample and calculating a correction coefficient; 4) obtaining a color correction formula through the correction coefficient, dyeing a blank sample, obtaining an actual dyeing sample, measuring the color data and calculating the color difference value between the actual dyeing sample and the standard color sample; 5) repeating steps 3) to 4) until a color correction formula satisfying the color difference threshold value is obtained.

This invention belongs to the technical field of building material production equipment, specifically disclosing a color-difference-free soft stone production device and method. It includes a slurry funnel with a uniform spreading mechanism at its inner top for evenly discharging the slurry. A cleaning mechanism is located outside the uniform spreading mechanism to further even out the slurry. A dryer is located on one side of the slurry funnel. Conveyor belts are installed inside both the slurry funnel and the dryer. An impurity removal mechanism is located at the bottom of one of the conveyor belts for cleaning the conveyor belt below the slurry funnel. The uniform spreading mechanism ensures the slurry is evenly spread on the conveyor belt, preventing uneven thickness and color differences when the slurry enters the roller press. This improves the color uniformity during roller pressing and enhances the quality of the soft stone production.

Food contact materials with a color difference ΔE <20 from the L*a*b* coordinates to a color number starting with "2" of the RAL color chart according to the color model according to EN ISO 11664-4, to be determined according to DIN 5033 (1979), based on compositions containing at least one polyester or polystyrene and a colorant consisting of at least one orange methine dye and at least one ethylene oxide-propylene oxide block copolymer with a central propylene oxide unit between two ethylene oxide units, a molar mass determined from the OH number to be determined according to DIN / ISO 4629, in the range of 5500 to 7500 g / mol, a mass fraction of ethylene oxide units in the range of 45 to 55 wt.% and a flocculation point to be determined according to EN 1890 method B in the range of 70°C to 85°C.

Disclosed is a colorimetric determination method for plumbum (Pb) limit in electronic cigarette liquid based on color space processing. By digesting tobacco materials into a solution to be tested, a color value of the solution to be tested is obtained by photographing, and a color difference from a standard solution is calculated. By comparing the color difference, it can be effectively determined Whether the Pb content in the solution to be tested exceeds the limit requirements. The method is simple in operation, has low requirements for equipment and reagents, and can be used to measure the Pb content in tobacco products objectively and efficiently. A colorimetric determination device for Pb limit in electronic cigarette liquid based on color space processing is further provided, which is novel in structure and convenient to operate, and can quickly and conveniently realize the colorimetric determination method.