BYK-Gardner. Gloss and Color. Wesel, 2016, Henrik Folkerts

Transcription

1 BYK-Gardner Gloss and Color Wesel, 2016, Henrik Folkerts

2 Your Partner Kiel Rostock Hamburg Bremen Wesel Hannover Magdeburg Berlin Düsseldorf Erfurt Dresden Frankfurt /M. Saarbrücken Güntersthal Nürnberg Stuttgart München Geretsried

3 Quality Control for Paint and Plastic

4 BYK-Gardner is setting standards micro-gloss the leader in gloss measurement

5 Quality is our Business: micro-gloss Production Automatic calibration on high low gloss tiles Master standards traceable to BAM / NRC Long-term drift check Controlled operating conditions Excellent performance

6 Surface quality Gloss Distinctness of Image Haze Orange Peel Color Effect

7 Reflection Incident light Diffuse Reflection Specular Reflection (= Gloss)

8 Glossmeter Design α1 ± 0.1 α2 ± 0.1 e.g. Receptor aperture 20 : 1.8 ± 0.05

9 Defined Angles of Illumination ~ 10 x 10 mm

10 Defined Angles of Illumination ~ 9 x15 mm

11 Defined Angles of Illumination ~ 5 x 38 mm

12 Angles of Illumination GU Low Gloss Semi Gloss High Gloss increasing gloss perception

13 Recommended Geometries Gloss level Semi gloss High gloss Low gloss 60 value 10 to 70 units > 70 units < 10 units Recommended geometry 60 geometry 20 geometry 85 geometry

14 GU UV-B Weathering Test PUR Coil-Coating System Start 100 h 200 h 250 h Panel A / 60 Panel B / 60 Panel A / 20 Panel B / 20

15 micro-gloss save and reliable measurements new auto diagnosis in the holder checks calibration... tells you when to calibrate checks whether the standard is clean Autodiagnosis OK standard and optics are always protected in the holder

16 micro-gloss textured surfaces e.g. 60

17 NEW micro-gloss Intelligent gloss measurement with smart communication

18 New micro-gloss with small aperture: micro-gloss XS 60 Gloss measurement According to international standards Opening: 9.2 mm x 2 mm Spot size : 4.0 mm x 2 mm Ideal for small parts and components

19 Surface quality Gloss Distinctness of Image Haze Orange Peel Color Effect

20 6/22/2016, Page 20, BYK-Gardner GmbH, Grundlagen der Farbmetrik

21 Do you see dots at the intersections?

22 Page 22, BYK-Gardner USA, Color Measurement

23 Page 23, BYK-Gardner USA, Color Measurement

24 Color Perception Light Source Observer Object Page 24, BYK-Gardner GmbH, Color Measurement

25 Standard illuminants illuminant E l D 65 E l A E l F Wavelength [nm] North Sky Daylight Wavelength [nm] Tungsten Wavelength [nm] Fluorescent Things look different under different illuminants Page 25, BYK-Gardner GmbH, Color Measurement

26 The Eye and Fields of View observer 2 2 observer (1931) Small area of the retina Does not agree with color viewing observer (1964) Large area of the retina Corresponds with color viewing Page 26, BYK-Gardner GmbH, Color Measurement

27 International Standards for Visual Evaluation of Solid Colors ISO 3668 ASTM D1729 DIN 6173 SAEJ 361 Main Illuminant D65 D65/D50/D75 D65 D65/Horizon (~ D50) Illuminants for Metamerism Level of Illumination A A/F2/F11 Nd F lx lx lx lx Color of interior Matte neutral grey (a*,b* < 1) General: L*= Light color L* > 65 Dark color L* = 25 Matte neutral grey N6 N7, (~ L* = 61-71) Matte neutral grey Matte neutral grey N6 N7, (~ L* = 61-71) Gloss of interior nd 60 gloss < 15 GU nd nd Diffuser Panel X X X X Page 27, BYK-Gardner GmbH, Color Measurement

28 Visual Evaluation of Solid Colors (ISO 3668) Observer Defined D65, A, F11 Diffused illumination Viewing distance 500 mm to correspond to 10 Observer Illumination perpendicular / viewing 45 or vice versa Page 28, BYK-Gardner GmbH, Color Measurement

29 Visual Evaluation of Solid Colors byko-spectra according to ASTM and ISO New 2016: byko-spectra lite QC Page 29, BYK-Gardner GmbH, Color Measurement

30 Reflection Incident light Diffuse Reflection Specular Reflection (= Gloss)

31 Object Color Spectral Reflectance Curves object blue red green yellow Page 31, BYK-Gardner GmbH, Color Measurement

32 The Building Blocks of Color Illuminant Object Observer E l A A Wavelength [nm] Color Scales: X Y Z L*a*b*,... Page 32, BYK-Gardner GmbH, Color Measurement

33 CIELAB - System: Color Difference DL*, Da*, Db* Color system L*= 100 Yellow +b* = Sample - Standard L* -a* Green a* E* L* b* +a* Red - + a* - + b* - + -b* Blue L*= 0 E* = ( L*) 2 + ( a*) 2 + ( b*) 2

34 Component Differences Determine the cause of a mismatch Color system E* = ( L*) 2 + ( a*) 2 + ( b*) 2 Standard Sample 1 E* = (0.57) 2 + (0.57) 2 + (0.57) 2 = 1 1 Sample 2 E* = (0.0) 2 + (1.0) 2 + (0.0) 2 = 1 2

35 Measurement Report geometry D65 / 10 spectro-guide 45/0 Colour Scale Standard Sample Differences L* a* b* de* = 1.05 Page 35, BYK-Gardner GmbH, Colour Measurement

36 Does the colour match? Do the two sides look different? The structured part looks lighter, despite being made of the same coloured material! Colour and gloss influence the visual impression

37 Visual Perception: 45/0 Geometry Differences in gloss/ structure Colour Differences Circumferential illumination reduces directionality influence Typical Applications: Comparison to defined standard Batch-to-batch control Harmonization of various materials/structures Page 37, BYK-Gardner GmbH, Colour Measurement

38 Colour Hue Control: Sphere Spin Differences in gloss/structure X Colour Differences Typical Applications: Colour matching Colour strength development Weathering studies Page 38, BYK-Gardner GmbH, Colour Measurement

39 Comparison: 45/0 - sphere spin 45/0 Colour as we see it 60 5 GE sphere SPIN * Evalutes colour pigmentation 45 0 dl* = 4,79 da* = 0,26 db* = -0,04 dl* = 0,06 da* = 0,09 db* = -0, GE de* = 4,79 de* = 0,10 Page 39, BYK-Gardner GmbH, Colour Measurement

40 spectro-guide Family spectro-guide sphere gloss: control the colour hue + 60 gloss spectro-guide 45/0 gloss: colour as you see it + 60 gloss Page 40, BYK-Gardner GmbH, Colour Measurement

41 Related Links Seminars: Webinars: Videos: Digital Catalog: Contact us: Select a country

42 What s new at BYK-Gardner New Services micro-gloss BYK-mac i wave-scan cloud-runner haze-gard i byko-spectra effect spectro-guide Gardner-scrub Pendulum Impact Tester byko-cross-cut Viscosity Cups byko-drive byko-cut universal temp-gard BYK-Gardner Products live on and YouTube

43 What s new at BYK-Gardner New Products byko-visc Family: Rotational Viscometer Sartorius Balances Abrasion Tester byko-charts gradient oven

44 What s new at BYK-Gardner New Products NEW micro-gloss Intelligent gloss measurement with smart communication Light booth for solid color (Byko-spectra lite ) Page 44, BYK-Gardner GmbH, Gloss and Haze Measurement

45 What s new at BYK-Gardner New Catalog

46

47 Thank you for your attention.