International Journal of Science, Engineering and Computer Technology

Deepak Kumar Sharma ¹, C. Dinesh ¹

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

Abstract

In the modern era, digital printing has been dominating printing process to print on variety of paper substrates. Electrophotography is one of the commonly used technology or method in digital printing process. The emerging trends in the field of digital printing take over the position of traditional printing processes which requires the scrutiny of the print quality parameters. The total digital controlling of the printing process gives a hypothesis of achieving the consistent print quality in all prints. This article is scrutinizing that hypothesis by conducting the instrumental (Techkon Spectro Dens Premium spectrophotometer) measurement of colorimetric and densitometric tonal values and quality parameters of the print on coated and uncoated paper which is printed on daily basis. The results show that the Delta E (colour variation) is higher in uncoated papers as compared to the coated prints. Solid ink density and print contrast of black colour has better consistency on uncoated paper and print contrast of all colours on coated are also subjected to the variations. The solid ink density of yellow colour on coated paper shows highest densitometric value consistency.

Keywords

SID, Print Contrast and Delta E.

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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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Deepak Kumar Sharma ¹

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

Abstract

Indian printing is booming at an exponential rate today. Printing is having a vast range of application for common people. There is a huge change in social, economic, political and market condition. This paper through light on printing industry scenario presently in India and future possible implication of it. This research paper is studied the future, scope, challenges of printing industry from the different angle. The paper shows that the Indian printing industry has a good scope in exporting of printed product due to very low production cost and good communication and technical skills as required. The importing of the machines creates high level competition in Indian printing machine manufacturing field. The important notable matter, a well quipped prepress machine manufactures are available in India.

Keywords

Printed Electronics, Digital Work Flow, Automation and 3D Printing.

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Vandana ¹, Deepak Kumar Sharma ¹

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

Abstract

In this era of survival, newspaper presses needed to be quality oriented and establishment of quality management system is very essential to satisfy the customers and to face the competition in market among various presses. This paper highlights the procedures and measures of quality management, quality control parameters, ISO standard and the issues that can impact the implementation, thereby increasing the awareness of quality through quality management system in web-fed publication presses. The work was carried out at HT Media Ltd., Mohali and data was collected on daily basis. The results clearly indicated that quality management system is most suitable for enhancing quality need to taken into consideration by newspaper presses.

Keywords

QMS, Work Instruction, ISO Standards, Ink Weight, SID, Dot Gain, Hue-Error, Greyness.

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Deepak Kumar Sharma ¹, Nishan Singh ¹

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

Abstract

The digital printing technology is continues to grow and a lot of research is going on for the development of highly sophisticated printing machines for the suitability of all works. The lot of efforts is put into development of advanced and technologies and products. Here this research work is to extract and scrutinise the print quality of both FM screened and AM screened digital print and an analytical comparison between them. The result shows that FM screened digital printing has good or higher quality as compared to the AM screened digital prints.

Keywords

AM Screened, FM Screened Digital Prints, Print Quality.

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