Choose a letter     A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z 

Properties of paper

In paper industry the term " brightness " is expressed in points or % and it co- relates roughly with the whiteness of the sheet. However two white sheet of identical brightness may cot appear identical to eye due to difference in colour tint. Generally unbleached pulp have a brightness in order of 20 to 25 unbleached sulphite 55 to 65, white bleached paper and board 70 to 80. Very high brightness are sometimes required above 83 points but to obtain these without degradation of strength is costly.

Copyright © 2001 Indosoftnet Solutions & Consultant. All rights reserved.  | Terms of Use | Feedback  Best view in 800 X 600 resolutions