Soaping-resistance color fastness evaluation method of circular screen printed textiles on basis of image analysis

Abstract

The invention relates to a soaping-resistance color fastness evaluation method of circular screen printed textiles on the basis of image analysis and realizes the overall, fine and objective evaluation of the soaping-resistance color fastness of the circular screen printed textiles with complicated color pattern structures. The soaping-resistance color fastness evaluation method of the circular screen printed textiles on the basis of machine vision is realized through the cooperation of a hardware part and a software part. The hardware part can realize the image obtaining of the circular screen printed textiles and mainly consists of an industrial video kit (1), a light source (2), a light source controller (3), a computer mainframe (4), a display (5), a data transmission conducting wire (6) and a test sample table (7), wherein the test sample table (7) is used for installing the industrial video kit and the light source. The software part can realize the obtaining, the storage and the cutting of images, the gray-scale feature statistics and the evaluation of the soaping-resistance color fastness grade of the circular screen printed textiles and the staining grade of pure cotton fiber white backing test samples.

Description

technical field [0001] The invention relates to a method for evaluating the color fastness to soaping of rotary screen printing textiles based on image analysis. 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 method of the adjacent fabric In comparison, the method proposed by the invention is more objective and accurate, and can effectively reduce errors caused by subjective judgments. Background technique [0002] Rotary screen printing has the characteristics of low labor intensity, high production efficiency, and strong adaptability to fabrics. It can obtain the effect of lively patterns and bright colors, and is widely used in textile printing. The evaluation of color fastness to soaping is an important part of the quality evaluation of rotary screen printing textiles. For all printed fabrics, the e...

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 rotary screen printing textiles, the objective and accurate evaluation of color fastness to soaping has always been a bottleneck problem that plagues rotary screen printing technology.

Images