On-line soft-measuring method and system for fabric color during batch dyeing

Abstract

The invention provides on-line soft-measuring method and system for fabric color during batch dyeing. The soft-measuring method comprises the following steps: step a, operating a dyer to dye according to the selected dye, fabric and dyeing parameters; step b, carrying out following operations by a computer according to the selected dye, fabric and dyeing parameters in step a: b1, determining the dye uptake rate of the dye at any time according to a color dynamics model reflecting the relationship between the dye uptake rate of the dye and the dying time during dying; b2, determining the reflectance value of color of the fabric according to a color soft-measuring model so as to further converting the reflectance value into the tristimulus value and RGR value; and b3, displaying corresponding colors according to the RGB value obtained in b2; and step c, sampling the dye in the dyer during dying, testing the dye uptake rate of the dye in real time, inputting the dye uptake rate tested inreal time in the computer and properly correcting the color dynamics model according to correction algorithms.

Description

technical field [0001] The invention relates to a method and system for on-line soft measurement of fabric color in batch dyeing process. Background technique [0002] Fabric dyeing methods can be divided into two types: dip dyeing (batch dyeing) and pad dyeing (continuous dyeing). At present, most printing and dyeing enterprises use intermittent dyeing methods to meet the market demand for small batches and multiple varieties of textile products. [0003] Color difference is the deviation between the color of dyed products and the color of dyed product samples, and is an important indicator to characterize the quality of textile products. At present, the research and application of on-line color measurement technology of continuous dyeing method are relatively mature, mainly in the continuous dyeing process, the fabric is dyed in the open width state, and the sample fabric to be tested can meet the requirements of common color measurement instruments, which is convenient f...

AI Technical Summary

Problems solved by technology

The detection and control of artificial color difference depends largely on the experience of the dyer, and there are many shortcomings such as unstable detection effect, poor reproducibility, and long cycle. At the same time, due to the long detection cycle, artificial color difference detection cannot reflect the entire cycle of the dyeing process. Due to the situation of dyed fabrics, it is impossible to accurately control the dyeing process, resulting in unstable product quality, low product pass rate, increased cost, increased energy consumption, and increased production wastewater discharge

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