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Color control and color measurement


9 June 2020
 
  Color Measurement of Painted Metal Plates

The color of metal plates should be measured immediately after the painting process. It must be taken into account here that there are both high-gloss surfaces and very dull surfaces, and that the color value must be determined irrespective of the gloss factor. Furthermore, measurement must be performed inline, on the one hand to satisfy the requirements of 100% inspection, and on the other hand to be able to quickly respond to a possible color drift.
The recommended color sensor for this application is a sensor of the SPECTRO-3 series operating with the 45°/0° method (SPECTRO-3-28-45°/0°-MSM-ANA-DL).
 
► Press release (pdf)
► Press release (Word/pdf)
 

    SPECTRO-3-28-45°/0°-MSM-ANA-DL

    SPECTRO-3-MSM-ANA Series
 


4 March 2020
 
  Do not overstep the red line

Plastic wires with various thicknesses, colors, forms and surface properties are used for a range of different purposes. Examples include tennis rackets with polyester monofilaments; the triangular profile of the racket strings produces greater spin. Flat material is most suitable for the monofilaments used in the production of large plastic bags (big bags). Transport filter belts used in the wet areas of paper production are made of round plastic monofilaments; the plastic wires used in toothbrushes have abrasive material added to them. Plastic monofilaments are now also used in 3-D printing procedures. This process also uses round wires with various diameters. In addition to the form, color consistency is decisive, as color deviations in plastics are often interpreted as quality inconsistencies. Woven products such as plastic sieves, big bags and tennis rackets are especially prone to this phenomenon as even very small color nuances (usually from a color difference of dE=1) are perceptible. Manufacturers need to inspect the color of the monofilaments during production, i.e. inline. The object size, form and gloss of the plastic monofilaments have previously impeded the use of inline color measuring devices, especially as a color deviation of > dE = 0.7 needs to be detected reliably.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    SPECTRO-3-12-DIF-MSM-ANA-DL

    SPECTRO-3-MSM-ANA Series  
 


7 November 2019
 
  Perfect Light for the Car Interior

Light Guide Rods
More and more cars today are equipped with light guide rods in their interior, the so-called ambiance area, for example in door panels, dashboard, center console, and roof lining. Through semi-transparent flat strips these light guide rods guide the light into the interior of the car. Any inhomogeneity in the light guide rod would influence the scattering behaviour of the output light. When driving in the dark, a passenger in the car interior would notice this as a bright or dark position along the light strip and would be disturbed by it.
 
► Press release
► Press release (Word/pdf)
 

    SPECTRO-3-FIO-ANA-LEDCON-HA

    SPECTRO-3-ANA Series  
 


22 March 2019
 
  Choose the Right Side

95% of all the industrially produced flat glass today is made using the float glass process. In this process, molten glass is continuously fed into a bath of molten tin. Due to its lower specific weight the molten glass floats on the smooth tin surface, and on a long tin bath forms a uniformly thick and extremely smooth film. The glass side that faces the molten tin is slightly contaminated with tin, which has corresponding effects on subsequent float glass processing steps such as coating of the glass surface.
For the further processing of float glass it is therefore important that the surface that is contaminated by the tin bath can be distinguished from the so-called fire side (fire polishing, during float glass production the glass side facing away from the molten tin is heated)..
 
► Press release
 

    Contrast sensor
 
    SPECTRO-1-FIO-UVC/UVC   
 


9 November 2018

  INLINE Color Measurement of Paint Through a 15mm Thick Inspection Glass

Usually the color checking of color paint during production primarily is done in a laboratory. A paint sample is taken, and the color of this sample is then checked by way of a thin paint layer in dry condition. This process of course takes some time, time in which paint production might run out of the permissible tolerances and thus might require time-consuming and expensive follow-up treatment.

► Press release
     Color measurement sensor
   SPECTRO-3-28-45°/0°-MSM-ANA-DL


NEWS

Trade fairs:

Empack Utrecht 2020
15, 16 & 17 September 2020
Jaarbeurs Utrecht

all about automation 2021
9 & 10 March 2021
Messe Friedrichshafen


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New applications:


Color differentiation of black and brown interieur plastic components
(N°696)
Distance measurement of plastic side windows
(N°697)
Distance measurement to insulation panels
(N°698)

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New press release:

Gaps in Parquet Flooring
RED Series

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New videos:

Tutorial L-LAS-Spray-Control-Scope V2.0 software
Counting transparent plastic covers with SPECTRO-1-CONLAS and A-LAS-N-F16-...
Product authentication with LUMI-STAR-MOBILE-BL/OR-POL-IOS
Leather marking with LUMI-INLINE-SL-IR/IR

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Important notes about software updates:

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