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Textile color stability and color aberration grading method

A color fastness and textile technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of rising temperature of the integrating sphere, different transmittances, and the stability of the light source being greatly affected by the outside world.

Inactive Publication Date: 2011-05-11
QINGDAO ENTRY EXIT INSPECTION & QUARANTINE BUREAU P R CHINA +2
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Problems solved by technology

Since the spectral stability of the tungsten-halogen lamp in the lighting source is related to the stability of the power supply voltage, the stability of the light source is greatly affected by the outside world. In addition, the thermal side effect of the infrared ray of the tungsten-halogen lamp increases the temperature inside the integrating sphere, which will cause filter The transmission wavelength range of the color device drifts, causing great side effects to the measurement results; during the production process of the baffle, limited by the processing accuracy, the transmittance must be different, the transmitted light intensity is lossy, and the light irradiated on the silicon photocell Can not meet the light intensity of D65 light source required by CIE, therefore, it will also cause measurement error in this part
In addition, optical colorimetric instruments generally have the disadvantages of fixed and single sampling area of ​​the probe head, and it is impossible to select the sample area at will and perform multi-point testing at the same time.
Based on the above defects, instrument color measurement has not been widely popularized to replace the status quo of manual visual inspection.

Method used

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  • Textile color stability and color aberration grading method
  • Textile color stability and color aberration grading method
  • Textile color stability and color aberration grading method

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Embodiment Construction

[0031] The method of the present invention is described in further detail below:

[0032] (1) Research on the stability of digital imaging measurement and selection of equipment

[0033] The ultimate goal of describing, reconstructing and measuring the color of objects in nature must be consistent with the observation of human eyes. Therefore, the higher the accuracy and stability of the map-taking equipment, the better, but in practical applications, the equipment can be used as long as its error is within the allowable range. Through the actual scanning experiment and error analysis, the present invention selects EPSON PERFECTION 1260 drawing equipment as the fabric image acquisition equipment.

[0034] (2) Determination of external conditions for forming metameric images

[0035] In traditional optical measurement, the requirements for external conditions such as light source are determined (that is, D65 light source 10° or 2° field of view), and the image acquired by the...

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Abstract

The invention discloses fabric color fastness color difference grading method. It includes the following steps: copying fabric color character and transmitting to the computer to obtain homochromatic different spectra image in RGB color space coordinates; analyzing and measuring. It has the advantages of practical, reliable, easy operation, fast analyzing, automatic grading etc.

Description

technical field [0001] The invention relates to a method for grading the color difference of the color fastness of textiles. Background technique [0002] The textile and garment industry is of great strategic significance to the fast-growing Chinese economy and is one of the pillar industries for export earnings. In the process of our country gradually becoming a global manufacturing base, improving the core competitiveness of textile and garment enterprises has important strategic and practical significance. One of the core competitiveness of textile and garment enterprises is to provide high-quality and high value-added products, and the control of color fastness of fabrics has become one of the main factors affecting product quality and added value. [0003] Domestically, the evaluation of color fastness mainly relies on the method of expert visual inspection. This method is to compare the gray sample card with five levels and nine levels with the color difference befor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/25
Inventor 姚伟敏李涛王东商大伟范玮
Owner QINGDAO ENTRY EXIT INSPECTION & QUARANTINE BUREAU P R CHINA
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