Four Characteristics of Paper
1. Paper Thickness
2. Paper Opacity
3. Color Brilliance
4. Paper Finish
ISO brightness is the European standard that qualifies the brightness of paper as it would be perceived in an environment that is illuminated with a mixture of cool-white fluorescence and some unfiltered daylight. The fluorescence present in paper can provide a significant contribution to the brightness. ISO brightness numbers can exceed 100%, but not by much.
TAPPI brightness is the North American standard that qualifies the brightness of paper. Along with fluorescence and environmental light, TAPPI includes an ultra-violet light component which is the lowest of any standard. In addition, light hits the sample from only one particular angle. TAPPI brightness numbers will rarely exceed 100%.
We will use:
Lasal Photo Gloss 270- resin coated, single sided, brightness D65 95, water resistant, pigment/ dye, brilliant white
Lasal Dual Semigloss 330- brightness D50 98, double sided, water resistant, pigment/dye, brilliant white, instant dry, good for saving on paper costs, good for high quality photo prints, there was no bleed through, good for wide color and dynamic ranges.
Lasal Exhibition Luster 300- resin coated, ultra white, water resistant, single sided, pigment/ dye, CIE whiteness D65/ 10 145
Colorado Fiber Satin 245- alpha cellulose, single sided, bright white / high dmax. water resistant, pigment /dye, acid and lignin free
Slickrock Metallic Silver 300- brightness 39, gloss 60deg 78, acid free, single sided, pigment dye, designed for photographers who want to enhance their photos with a metallic look, ultra shiny, instant dry coating
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