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Colorimetric device for relative colour measurement of a material web

A technology of color measurement and material width, applied in the direction of measuring devices, processing of textile materials, material analysis by optical means, etc.

Inactive Publication Date: 2008-09-10
A MONFORTS TEXTILMASCHINEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ambient light differences should be able to be compensated

Method used

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  • Colorimetric device for relative colour measurement of a material web
  • Colorimetric device for relative colour measurement of a material web

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Experimental program
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Embodiment Construction

[0021] in press figure 1 In the embodiment, a woven material web 1 is passed through a padding machine generally designated as 2 in an unrolled state, for example, through rollers 3 and 4, impregnated in a treatment liquid 5 such as a dye, and then in one by two (in the arrow direction) to reach a predetermined residual humidity in the liquid squeezer 6 composed of rolls extruding each other. A constant residual moisture should be set in the squeezer 6 over the entire width and length of the material web 1 . In order to check whether the goal of an even distribution of the treatment liquid is achieved in the material web 1 , the material web is guided in the direction of the arrow by a roll 7 equipped with a sensor device 8 according to the invention. The sensor arrangement 8 as well as the roll 7 and the material web 1 are shown in some important details (in a plane with the shaft 9 of the roll 7 ) in FIG. 2 .

[0022]In the embodiment according to FIG. 2, the material web ...

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PUM

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Abstract

A device is disclosed for relative colour measurement of a moving material web using a multirange colour sensor for determining and comparing colour degradation of zones which extend parallel to the material web length. In order to exclude ageing effects of the lighting necessarily required for colour measurement, as well as errors due to the ambient light and parasitic effects caused by different temperatures and mechanical errors, a colour sensor (17) is provided having a plurality of measurement points (11 to 13) which are moved together transversely to the length of the material web and have a common light source (22).

Description

technical field [0001] The invention relates to a device for relative colorimetric measurement on a moving web by means of a multi-range colorimetric sensor, in particular a three-range colorimetric sensor, in order to determine and Compare dye precipitates. Furthermore, the invention also relates to a method for operating the device. Background technique [0002] In plants where the color characteristics of wide webs are to be monitored, especially textile webs in the case of single dyeing, it is important that the current dye deposits uniformly over the entire width and length of the web. Such equipment occurs, for example, in the textile industry, but even in papermaking and paper refining, in the manufacture of plastic sub-covers and plywood. Web widths of several meters are possible here. The webs are often moved at high speeds (in the longitudinal direction of the rails) during the production process, and products are often transported with a length of several meter...

Claims

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Application Information

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IPC IPC(8): D06B23/26G01N21/89
CPCD06B23/26G01N21/251G01N21/8983
Inventor U·多甘M·库尔
Owner A MONFORTS TEXTILMASCHINEN GMBH & CO KG