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Colorimetric device for relative colour measurement of a material web

A colorimetric measurement, web technology, used in measurement devices, processing of textile materials, material analysis by optical means, etc.

Inactive Publication Date: 2011-02-09
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
  • Colorimetric device for relative colour measurement of a material web

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] in press figure 1In 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 device 8 as well as the roll 7 and the material web 1 are in the figure 2 Some important details (in a plane with the shaft 9 of the roll 7) are shown in .

[0024] in press figure 2 In the embodiment shown, the m...

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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] Such colorimetric sensors are described in WO97 / 17604A and WO96 / 09533A. But it does not involve sensors for measuring the color itself, but rather sensors for detecting the intensity of the color. This known sensor cannot distinguish between red and blue at the same intensity. A color line scan camera for determining surface properties of objects is described in EP0675466A2. A color line scan camera is not the same type as a multi-range chroma sensor. DE 4238234 A1 relates to a method for distributing a dye liquor on a textile web, in which method only the lightness of the still wet material web immersed in th...

Claims

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Application Information

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