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Evaluation method for soaping resistance color fastness of yarn-dyed fabrics based on machine vision

A technology of color fastness and yarn-dyed weaving, applied in the direction of instruments, scientific instruments, color/spectral property measurement, etc., can solve the problem of objective and accurate evaluation of color fastness to soaping, which is troublesome for yarn-dyed weaving, and cannot achieve global measurement of yarn-dyed fabrics. Can not reflect the fading of local details and other problems

Inactive Publication Date: 2012-07-11
JIANGNAN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, in existing instruments for testing whiteness and K / S values, only local points of yarn-dyed fabrics can be measured, and the overall measurement of the entire piece of yarn-dyed fabric cannot be realized. The test results cannot reflect that the yarn-dyed fabric is washed. Fading of local details during the process
[0003] In addition, because of the complex colors of yarn-dyed fabrics, the objective and accurate evaluation of color fastness to soaping has always been a bottleneck problem that plagues yarn-dyed weaving technology.

Method used

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  • Evaluation method for soaping resistance color fastness of yarn-dyed fabrics based on machine vision
  • Evaluation method for soaping resistance color fastness of yarn-dyed fabrics based on machine vision
  • Evaluation method for soaping resistance color fastness of yarn-dyed fabrics based on machine vision

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Embodiment Construction

[0013] According to the requirements in GB / T3921-2008, when the sample is a fabric, prepare a combined sample according to the following method: take a piece of yarn-dyed fabric sample with a size of 100 mm × 40 mm, and a piece of pure cotton fiber with a size of 100 mm × 40 mm on the front The white facing fabric touches and is stitched 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 pictures of the yarn-dyed fabric samples dried before and after washing, and calculates the gray value I of the sample images before and after washing. b and I a . According to the principle of machine vision, the color of the sample fades after washing, the color becomes lighter, and its gray value becomes larger. Therefore, therefore calculate the...

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Abstract

The invention relates to an evaluation method for soaping resistance color fastness of yarn-dyed fabrics based on machine vision. According to the evaluation method, overall, elaborate and objective evaluations of soaping resistance color fastness of yarn-dyed fabrics with complex colors and patterns are achieved. The functions of evaluation method for soaping resistance color fastness of yarn-dyed fabrics based on machine vision are achieved by means of a hardware portion and a software portion, wherein the hardware portion can acquire images of the yarn-dyed fabrics, and comprises an industrial video suite (1), a light source (2), a light source controller (3), a computer host (4), a display (5), a data transmission guide line (6), a sample platform (7) for installing the industrial video suite and the light source, and the software portion can achieve acquisition, storage and clipping of images, statistics of grayscale characteristics and grade evaluation of color fastness to washing of the yarn-dyed fabrics and staining of samples of pure cotton fiber white lining are achieved by.

Description

technical field [0001] The present invention relates to a method for evaluating the color fastness to soaping of yarn-dyed fabrics based on machine vision. Compared with ISO 105C10:2006 "Color Fastness Tests for Yarn-dyed Fabrics Part C10: Resistance to Soap or Soap and Soda Washing "Color Fastness" and GB / T 3921-2008 "Color Fastness Test of Yarn-dyed Fabrics to Soaping Color Fastness" stipulates that based on the gray sample card or instrument, compared with the original sample, the fading of the sample and the quality of the adjacent fabric are evaluated. Compared with the staining 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] Yarn-dyed fabric is interwoven with two or more dyed warp and weft yarns, and is widely used in clothing and decoration. The evaluation of color fastness to soaping is an important part of the quality evaluation of yarn-dy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/27G01N21/956
Inventor 刘建立
Owner JIANGNAN UNIV
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