Print Quality Analysis of Coated Paper Used in Sheet Fed Offset Press for Printing

Pages:88-90
Vandana, Anjan Kumar Baral, Manoj Saini (Department of Printing Tech., GJUS&T, Hisar, Haryana)

Objective of this paper is to investigate various quality control parameters to be analyzed to check print quality on various paper grades of Type1, Type2 and Type3. Type 2 and Type3 papers were collected and printed on with standard quality control chart. Solid ink Density, Dot Gain, Print Contrast, Grayness and Colour Difference Data were compared on above paper varieties. The result indicated that To check the quality on uncoated and coated grade papers most significant quality control parameters include solid ink density, print contrast, dot gain, colour difference and grayness which should be analyzed to check quality deviations. Compared to coated papers, uncoated paper can have less ink hold out and hence able to impart less density in solid ink areas. Print contrast and readability is maximum in case of gloss grade coated paper compared to others.Colour difference is very less between gloss grade coated and matte grade papers but maximum between uncoated and coated stocks. Dot gain is maximum in case of printing on uncoated paper compared to gloss and matte grade coated papers. Grayness can be enhanced with CMYK combination compare to CMY alone in all three varieties of papers.