Method for measuring colors of light-pole laser paper

A technology of color measurement and laser paper, applied in the field of color measurement of light beam laser paper, to achieve the effect of convenient operation and small error

Inactive Publication Date: 2014-02-12
SHENZHEN KECAI PRINTING
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the color measurement process of the existing beam laser paper, to propose a color measurement method suitable for b

Method used

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  • Method for measuring colors of light-pole laser paper
  • Method for measuring colors of light-pole laser paper
  • Method for measuring colors of light-pole laser paper

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Embodiment Construction

[0031] The invention detects the rainbow effect of the light beam on the beam laser paper at a certain fixed angle, and first determines the distance between two rainbow beams perpendicular to the direction of the rainbow beam. Using an integrating sphere spectrophotometer, the measurement condition is D65 light source, under the premise of ensuring that the plane angle between the spectrophotometer and the laser paper remains unchanged, the illumination and observation geometric conditions are d / 8, CIE1964 standard observer, SCI (including reflection of mirror). During measurement, samples are taken along the direction of the rainbow light column and in the direction perpendicular to the rainbow light column. The chromaticity information along the direction of the rainbow light column is relatively consistent, while the L * The value does not change much, a * b * The chromaticity value satisfies a linear change relationship with the change of the measurement position y, an...

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Abstract

The invention relates to a method for measuring colors of light-pole laser paper. The method is used for measuring colors of a single piece of light-pole laser paper and estimating color difference of a sample and a test piece. Firstly, a light-pole period of the light-pole rainbow laser paper is determined through observation at a certain angle; the light-pole rainbow laser paper is divided into different measurement areas in the light-pole direction and in the direction perpendicular to the light-pole direction; spectrum and chrominance information of the laser paper are measured in a method including mirror plane reflection light through an integrating sphere type diffuse reflection light source; the chrominance information measured in the light-pole direction is similar, and the a*b*values of the chrominance information perpendicular to the light-pole direction meet the relation of linear variation along with change of measurement positions. The method solves the problem that accurate measurement of the laser paper is difficult in the scientific community and the industrial community, and has the advantages of being convenient to operate, simple and quick, and small in error.

Description

technical field [0001] The invention relates to a method for measuring the color of light column laser paper. By measuring the spectral information and chromaticity information of different positions on the standard sample laser paper, the color characteristics of different positions of the light column laser paper base are analyzed, thereby proposing a method for single-sheet The method for measuring the color of light column laser paper and evaluating the color difference between the standard sample and the test sample. Background technique [0002] Laser paper has been widely used in the field of packaging and printing with its gorgeous bright rainbow effect, but its bright rainbow effect has brought certain troubles to the printing and quality inspection process of enterprises, especially for high-end tobacco and wine packaging and printing products . In order to ensure the consistency of the color appearance of different batches of products, in addition to strengthenin...

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Application Information

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IPC IPC(8): G01J3/46
Inventor 陈华培黄敏樊聪王灵芳李树军刘瑜李爱国李双劲魏先福陈春华方小平李军民
Owner SHENZHEN KECAI PRINTING
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