Brightness is the reflectance of blue light from 400-500 nm with a peak wavelength at 457 nm it was ‘invented’ in the 1930’s to evaluate the effectiveness of pulp bleaching so brightness in the paper industry is the reflectance of blue light. The higher the brightness rating, the sharper the print color documents should be printed on office paper with a minimum 96 brightness general office documents only require 92 brightness office paper office paper weights office paper ranges from 20 lbs to 32 lbs these numbers indicate the weight of an 500 sheets.
If, when observing the paper sample on top of the search unit and any light is seen through the sample, place the black cavity standard over the paper sample alternatively, a “stack” of the paper samples can be used (if available) instead of the black cavity standard.
What kind of copy paper is suited for your business proposal or presentation what paper should you use for your inkjet printer is environmentally friendly paper an option read our guide and watch the how to choose paper quality video to learn more.
Deal on 85 x 11 (a4 letter size) 20lb 94 brightness multipurpose printer copy paper for your office order by the carton (10 reams) today to get fast and free shipping. A paper’s brightness is scientifically measured in terms of how much blue light is reflected from it it doesn’t necessarily mean how white (or yellow or pink) your paper is, but rather how much blue light it reflects on a wavelength.
The brightness of a piece of paper is typically expressed on a scale of 1 to 100 with 100 being the brightest the multipurpose bond paper used in copy machines and desktop printers generally has a paper brightness in the 80s. The terms brightness and whiteness are often used interchangeably when considering paper while for the regular layperson this crossover may not be detrimental, it is an important differentiation for those involved in the printing and art realms.