The five paper grades are 1 through 5 depending on brightness, and the six characteristics are brightness, whiteness, holdout, opacity, smoothness and finish. Measuring brightness the three most commonly today ¯ tappi - original standard, most common - indoor lighting plus some filtered daylight (tinted windows. Brightness is measured on a scale of 0 to 100 – the higher the number, the brighter the paper in other words, 95 bright paper reflects more light than an 85 bright paper. 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. What are the different types of printer paper the level of brightness of a particular type of paper is labeled on the package of paper typically brightness.
The tappi t 452 brightness test is used for the determination of the brightness of white, near-white, and naturally colored pulp, paper, and paperboard. Shop office supplies, furniture & technology at office depot for paper, ink, toner & more, find trusted brands at everyday low prices. Gravure/april 2003 63 the influence of paper brightness & opacity on print quality by michael evans, dupont titanium technologies paper illuminates the printed images.
Brightness buy a ream of copy paper and look at its cover there is a good chance that you will find label information specifying the brightness. 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.
· office depot currently sells copy paper with brightness levels over 100 most every other office supply company shows us brightness levels and euro. Paper brightness is measured on a scale of 0 to 100 this scale determines how much light is reflected from the surface of a sheet of paper the higher the number, the brighter the paper for example, paper with 98 brightness is slightly brighter than paper with 97. Paper brightness - 1851 results from brands hammermill, hp, epson, products like strathmore cotton business paper, white, 97 brightness, 24lb, letter, 500.
Online shopping from a great selection at office products store. Title: tappi brightness author: hunterlab subject: describes the tappi brightness index keywords: reflectance, paper, t452, d25a created date: 6/4/2008 11:45:06 am. Technidyne paper testing instruments for the measurement of paper brightness.