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Image analysis based method for evaluating colorfastness to washing of digital ink jet printing textiles

A digital inkjet and textile technology, applied in the direction of analyzing materials, material analysis by optical means, measuring devices, etc., can solve the complex color of digital inkjet printed textiles, the inability to achieve global measurement of textiles, and the objective color fastness to soaping. Accurate evaluation of problems plaguing digital inkjet printing technology

Inactive Publication Date: 2012-07-04
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing instruments for testing the whiteness value and K / S value, only local points of the textile can be measured, and the overall measurement of the entire textile cannot be realized, and the test results cannot reflect the partial color fading of the textile during the washing process.
[0003] In addition, because of the complex colors of digital inkjet printed textiles, the objective and accurate evaluation of color fastness to soaping has always been a bottleneck problem that plagues digital inkjet printing technology.

Method used

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  • Image analysis based method for evaluating colorfastness to washing of digital ink jet printing textiles
  • Image analysis based method for evaluating colorfastness to washing of digital ink jet printing textiles
  • Image analysis based method for evaluating colorfastness to washing of digital ink jet printing textiles

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Embodiment Construction

[0013] According to the requirements in GB / T3921-2008, when the sample is a fabric, prepare the combined sample according to the following method: take a piece of digital inkjet printing textile sample with a size of 100 mm × 40 mm, and a piece of pure fabric with a size of 100 mm × 40 mm on the front Cotton fiber white lining fabric touches and is seamed along one short edge. In this example, in order to simulate the real laundry fading environment and ensure the stability of the test, five samples were washed at one time with a domestic rolling washing machine. For example, using figure 1 Shown hardware fits figure 2 The shown software takes photos of digital inkjet printed textile samples before and after washing, and calculates the average gray value I of the sample images before and after washing. b and I a . According to the principle of image analysis, it can be seen that the color of the sample fades after washing, the color becomes lighter, and its gray value bec...

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Abstract

The invention relates to an image analysis based method for evaluating colorfastness to washing of digital ink jet printing textiles, which is used for wholly, finely and objectively evaluating the colorfastness to washing of digital ink jet printing textiles with complicated color patterning. The image analysis based method for evaluating colorfastness to washing of the digital ink jet printing textiles is realized through the collaboration of a hardware part and a software part, wherein the hardware part can be used for obtaining images of the digital ink jet printing textiles, and mainly comprises an industrial video assembly (1), a light source (2), a light source controller (3), a host computer (4), a display (5), a data transmission conducting wire (6) and a sample table (7) used for installing the industrial video assembly and the light source; and the software part can be used for obtaining, storing and cutting the actual images, counting the grayness characteristics, and assessing the grade of colorfastness to washing of the digital ink jet printing textiles and the staining grade of a purified cotton fiber white adjacent sample.

Description

technical field [0001] The present invention relates to a method for evaluating the color fastness to soaping of digital inkjet printing textiles based on image analysis. "Color Fastness" and GB / T 3921-2008 "Textile Color Fastness Tests Color Fastness to Soaping", based on the gray sample card or instrument, compared with the original sample, to evaluate the fading of the sample and the staining of the adjacent fabric Compared with the above method, the method proposed by the invention is more objective and accurate, and can effectively reduce the error caused by subjective judgment. Background technique [0002] Textile digital inkjet printing is a product of the digital and information age. It inputs the pattern into the computer through various digital means, and after editing, the computer controls the nozzle according to the pattern, and directly sprays the color ink on the textile as needed. Create patterns on textiles. After nearly 80 years of development, digital i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84
Inventor 刘建立
Owner JIANGNAN UNIV
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