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2003 Course Substrates & Ink Technology

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Total No. of Questions : 6] P1488 [Total No. of Pages : 3 [3764]- 310 B.E. (Printing) SUBSTRATES AND INK TECHNOLOGY (2003) (408290) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) All questions are compulsory. 2) Answers to the two sections should be written in separate answer books. 3) Neat diagrams must be drawn whenever necessary. 4) Figures to the rights indicate full marks. SECTION - I Q1) a) State the importance of uni-flow cylinder mould machine in packaging industry with neat sketch. [10] b) Mention the types of polyethylene used in packaging with their properties and uses in flexible packaging. [8] OR a) Comment on multivat cylinder mould machine for the production of boards used in printing and packaging industry. [10] b) Mention the types (names) of paper, grammage of the paper and finish of the paper required for the following jobs (any two) : [8] i) ii) iii) iv) Annual Reports. Business Catalog. News paper. Telephone Directories. Q2) a) Explain any two in details with reference to printing paper. i) ii) iii) iv) [8] Caliper. Cobb factor. Acidity & pH. Opacity. b) Explain in short the points to be considered at the time of selection of paper for particular printing job. [8] OR P.T.O. a) Mention the points to be considered specifically, while placing an order of the paper in reel-form. [8] b) Discuss the importance of the following properties of paper in your printing job (any two) : [8] i) ii) iii) iv) Ream weight. Breaking length. Burst factor. Grain Direction. Q3) a) Discuss in short the points to be considered in calculating direct cost in printing job. [8] b) Find the quantity of paper in size 61cms 88 cms for 20,000 booklets in size 210 mm 297 mm, assuming the booklet contains 24 pages.[8] OR a) Comment on (any two) : i) ii) iii) iv) [8] Recycle paper. Kraft paper. Duplex paper. Coated paper. b) Find the length of paper of 100 gsm in a reel of 62 cms width and weight of reel is 150 kg. [8] SECTION - II Q4) a) Discuss the different types of pigments used in printing inks and their properties. [8] b) What are different additives used in printing inks? Explain the purpose of their addition and their specific essential properties. [8] OR a) Discuss the principles of ink formulation with two specific formulae.[8] b) Explain the role of waxes in ink formulation. [8] Q5) a) Explain in brief BIS and ISO quality control with reference to printing inks. [8] b) Discuss the methods of ink testing used in laboratory. OR [3764]-310 -2- [8] a) Explain the term rheology with reference to paste inks and liquid inks. [8] b) Comment on the following : i) ii) [8] Product quality vs. system quality. Environment management in printing inks utilization. Q6) a) Explain the formulation method for metallic inks with their essential properties. [9] b) Discuss the advantages and disadvantages of water base inks. [9] OR a) Discuss electrographic printing inks. [9] b) Green issues in printing operation with reference to the solid waste and VOC. [9] xxxx [3764]-310 -3-

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