International Journal of Science, Engineering and Computer Technology

Ankit Boora ¹, Bijender Kaushik ¹, Ruby Rani ¹

Affiliations
1 Department of Printing Tech., G.J.U.S&T., Hisar, Haryana, IN

Abstract

Print Quality has been a point of strong attention among printer among India also it is highly sensitive point of debate among foreign printers. Objective of this research project work is to compare various quality control parameters in Dry Toner and Liquid Toner based digital printing presses available in local market. A master test chart was prepared having various elements such i.e. Colour Control Strip, CMYK- Solid Patches, G.J.U. logo as Graphic, Halftone images, Tint patches of different colours. The test chart was printed on Art Coated paper with the help of Dry Toner and Liquid Toner based digital printing presses available in local market. The test chart was analyzed to check the print quality with Spectrophotometer. The result indicated that Solid Ink Density was more in Black colour in Dry Toner based digital printing technique. Print Contrast was more in Magenta in Liquid Toner based digital printing technique. Dot Gain was maximum in Black colour in Dry Toner based digital printing.

Keywords

Dry Toner Digital Printing, Liquid Toner Digital Printing, Art Coated Paper, Solid Ink Density, Print Contrast, Dot Gain.

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Deepak Kumar Sharma ¹, Ruby Rani ¹

Affiliations
1 Department of Printing Technology, GJUS&T, Hisar, Haryana, IN

Abstract

The print quality is more and more importance in the printing industry due to high degree of automation, competition and ISO certification of product and systems. The quality can be analysed in visual and instrument basis. If the quality is analysed visually, then it is the analysis of print consistency and if the quality is analysed instrumentally, then it is the analysis of quality consistency. Here the quality of the print is considered using a densitometer. Three quality parameters are considered here and the relationship between them are analysed. The result shows that the SID increases the Dot Gain and Print Contrast is also Increases and vice versa. But this relationship varies little higher and lower level as compared colour to colour. The practical experiment does not shows absolute relationship between as in the mathematical manner.

Keywords

Solid Ink Density, Dot Gain and Print Contrast, Inkjet and Electrophotography.

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