On-line detection method of dye liquor components of bundle dyeing machine based on boards

Abstract

The invention discloses an on-line detection method of dye liquor components (rongalite, indigo and sodium hydroxide) of a bundle dyeing machine based on YanHua boards. An on-line detection system designed by the method comprises an indigo dye liquor on-line detection unit, a sulfuration dye liquor on-line detection unit, a calibration unit, boards, and an industrial control computer. According to the invention, a dye liquor sample in a dye vat of the dyeing machine is on-line detected in real time, the industrial control computer and the boards are used as a core are used, the concentration of the corresponding components of the dye liquor is on-line detected in real time by using potentiometric titration method, and the pH value and temperature of the dye liquor are on-line detected in real time, and pipelines are cleaned by the system after every detection completes. The method further can calibrate the indigo or sulfuration dye liquor on-line detection unit according to requirements to guarantee the accuracy of the detection results. The method can guarantee the detection precision of the dye liquor components, so as to raise the dyeing quality of dyed fabrics, thus the production cost is reduced, and the labor intensity of technical workers is reduced.

Description

technical field

[0001] The invention relates to a method for online detection of dye liquor components of a beam dyeing machine, which is suitable for the field of dyeing textiles with vat dyes. Background technique

[0002] Denim fibers are dyed with indigo dyeing solution or vulcanization dyeing solution. Manual detection is used to detect the amount of vat dyeing solution and the content of each component in the dyeing solution. Due to the relatively long time interval of manual detection, coupled with the randomness, inaccuracy and sense of responsibility of the operators themselves, human factors have a greater impact on the detection results of the dyeing components, and it is difficult to control the dyeing tank. The dyeing components remain stable, which causes color difference before and after dyeing, that is, defective cloth. Therefore, ensuring accurate and stable measurement of dye liquor components and reducing the influence of human factors has become the key ...

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