Indian Science Cruiser

Soumen Basak ¹, Trishna Basak

Affiliations
1 Department of Printing Engineering, Jadavpur University, SaltLake Campus, Kolkata – 700 098, IN

Abstract

Security printing faces maximum challenges from counterfeiters. To prevent them, the security documents contain special anti-counterfeiting features or security features which are difficult to forge. As counterfeiters are using latest technology, it is essential to develop more improved and complex anti-counterfeiting features which are impossible to reproduce. For this, it is important to study and analyze different existing anti-counterfeiting features in various types of security documents. For this purpose, some samples of such documents (banknotes of Rs. 1000, Rs. 500, Rs. 100, Rs. 50, Rs. 20 and Rs. 10, bank cheques, Aadhaar card, voter id card, pan card) have been collected and different types of methods have been used to identify a counterfeit security document.

Keywords

Anti-Counterfeiting Features, Security Document, Security Printing.

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Soumen Basak ¹, Rahul Kundu ², Anwesha Bandopadhyay ², Bikram Mahishya Das ²

Affiliations
1 Department of Printing Engineering, Jadavpur University, Saltlake Campus, Kolkata-700098, IN
2 Department of Printing Engineering, Jadavpur University, IN

Abstract

The purpose of this study is to analyse the quality parameters of paperboard products mainly Hinge Lid Package (HLP) printed by 10 colours Rotogravure which are stacked in Good Pallet and Autosplice Pallet. The observation methodology and the collection of data is based on interpretative approach which contains three parameters: Print to Cut, Cut to Crease & Registration Mark. An experimental approach has been taken, since the aim of the study is to check the variation of print quality in HLPs stacked on Good Pallet which are dispatched to the market for sale and also check the variation of print quality of HLPs printed during auto splicing in order to find out the utilisation of that HLPs for marketing purpose. The study shows that the small variation of quality parameters i.e. Print to Cut, Cut to Crease and Registration Mark beyond the tolerance value affect the print quality of package. A statistical model and graphical analysis was designed to determine the influence of quality parameters on defect minimization. As a main conclusion, checking the quality parameters in regular interval of 30 minutes maintain the print quality to a greater extend.

Keywords

Rotogravure, Print to Cut, Cut to Crease, Registration Mark.

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Soumen Basak ¹, Rahul Kundu ²

Affiliations
1 Associate Professor & HoD, Department of Printing Engineering, Jadavpur University, Salt-lake Campus, Kolkata – 700106,, IN
2 Technical Executive, ITC Limited, Munger, IN

Abstract

Screen Printing is a traditional and versatile process of transferring ink. A thick layer
of ink can be deposited by this process which makes it ideal to print on broad range
of substrates (both on porous & non porous). The purpose of this analysis is to focus
on the quality of print on four different types of substrates: Paper, Plastics, Textile
and Ceramic based on screen printing process. The work has been done using three
different screen mesh of screen ruling 60, 120, 180 l/cm and two different squeegees of shore hardness: 60 shore A° & 90 shore A° to find out the factors influence the quality and probable solutions to achieve sharp and fine output with less amount of wastage.

Keywords

Screen printing, Screen ruling, Thread count, Mesh opening, EOM, Paper, PVC, Textile, Ceramic

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