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Journal articles on the topic 'Sheet-fed Offset Printing'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

Wei, Yan Bin, Hai Yan Zhang, and Chun Guo Liu. "Shaftless Driving Development Research on Sheet-Fed Offset Press." Advanced Materials Research 834-836 (October 2013): 1682–86. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.1682.

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shaftless driving is a kind of advanced and new drive way which can solve the high precision of printing synchronism, mainly used in gravure printing, soft printing and wheel transformation printing equipment but less used in sheet-fed offset press at present. Based on sheet-fed offset press as the research object, the author analyzed the transmission characteristics of sheet-fed offset press, designs a scheme of shaftless driving used in sheet-fed offset press and set up the hardware and software platform, verified the scheme by experiments.

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2

Sangita, Yadav*1 Bhupender yadav2 &. Ravinder Singh3. "AN OVERVIEW OF SHEET-FED OFFSET PRESSES FOR OPTIMUM CONSUMPTION OF PRINTING SUBSTRATE." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 7, no. 2 (2018): 128–32. https://doi.org/10.5281/zenodo.1165716.

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Sheet-fed litho is commonly used for printing of short-run magazines, brochures, letter headings, and general commercial (jobbing) printing. In sheet-fed offset, "the printing is carried out on single sheets of paper as they are fed to the press one at a time". Sheet-fed presses use mechanical registration to relate each sheet to one another to ensure that they are reproduced with the same imagery in the same position on every sheet running through the press. Different types of printing substrates we can use in sheet-fed offset printing for production. Coated, Un-coated & Polypro

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3

Mr., Bijender* Mohit Kumar Miss Sierra Chaudhary. "COMPARATIVE ANALYSIS OF RUB RESISTANCE IN SHEET-FED OFFSET AND DRY TONER DIGITAL PRINTING ON UNCOATED, GLOSS COATED AND MATTE COATED PAPER STOCKS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 4 (2017): 82–86. https://doi.org/10.5281/zenodo.495916.

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In printing world, Sheet-Fed-offset has been popular and trending method of printing since some decades. Digital printing methods are getting popular now a days because of its quality and less production time. This paper throws light on comparison of rub resistance of sheet fed offset and digital printing process on uncoated, gloss coated and matte coated paper. To test the rub resistance a master chart was prepared consisting on line images, middle tone images and solid areas. The chart was printed by both printing processes on all above mentioned three grades of paper. The samples were teste

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4

Galingging, Rumbel, and Sutriono. "Pengendalian Misregister pada Cetakan Kemasan Karton di Mesin Offset." Magenta | Official Journal STMK Trisakti 6, no. 02 (2022): 953–70. http://dx.doi.org/10.61344/magenta.v6i02.89.

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The offset printing system dominates for the number of prints with medium to small quantities, in the printing process it requires skills and techniques in the printing process from the design process, to the manufacture of offset plates. Many problems that often arise from paper materials and printing techniques, efforts to control the problem of misregister printing on offset sheet-fed machines come from paper that is not angled and from machine factors because the machine is not maintained and because the number of prints is small so the operator ignores the printing process procedure the d

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Pankaj*1, Rakesh2 &. Dhirender3. "MACHINE DOWNTIME AND PRINTING DEFECTS ANALYSIS OF MODERN SHEET-FED OFFSET PRINTING PRESSES: A CASE STUDY OF EDELMANN INDIA PVT. LTD., BADDI." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 2 (2019): 71–75. https://doi.org/10.5281/zenodo.2563094.

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Offset printing process is the prominent printing process to print on cellulosic substrate for long run printing jobs. But one of the major drawbacks of offset is the longer make-ready time and machine downtime during print production. Also a wide range of printing defects occur in sheet-fed printing organizations causing a lot of print wastage. The present case study was carried out at Edelmann India Pvt. Ltd., Baddi, which is one of the most advanced printing organizations in North India. The case study was carried out in 9 months in the press section of the industry aims to find out various

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Ankit, Boora*1 Bijender2 &. Lalita Pannu3. "COLOUR DIFFERENCE ANALYSIS OF SHEET-FED OFFSET PRINTING PRESS FOR MONO-CARTON BASED PACKAGING APPLICATIONS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 7, no. 8 (2018): 345–48. https://doi.org/10.5281/zenodo.1345631.

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The main function of any printing industry is reproducibility of the original and to produce the exact colour. The offset printing process is a process which deals with maximum number of quality variables amongst all other printing processes. The slight variation in these variables can result in colour difference (∆E). This paper deals with the study of colour deviation after controlling the Solid ink density and adopting suitable strategies

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7

Mr., Ramesh Kumar* Mr. Bijender &. Mr. Sandeep Boora. "A SURVEY OF AUTOMATION TECHNIQUES COMING FORTH IN SHEET-FED OFFSET PRINTING ORGANIZATIONS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 6 (2017): 382–87. https://doi.org/10.5281/zenodo.814434.

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Sheet-Fed offset is one of the premier processes in India as well as abroad. To cope up with customers large quantity demands automation has become mandatory. From prepress to post press a wide range of automation techniques exist and coming forth for sheet fed offset presses. Objective of this paper is to throw light on various sheet-fed offset automation techniques existing today and their futuristic implications. The data related to automation was collected with the help of survey conducted in 15 printing organizations situated at Delhi NCR and Baddi (Himachal Pradesh) region. The data was

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8

Mr., Dhirender*1 Mr. Rajeev2 &. Mr. Bijender3. "IDENTIFICATION AND ANALYSIS OF INK SETTING AND DRYING IN SHEET-FED OFFSET AND DRY TONER BASED DIGITAL PRINTING PRESSES." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 677–86. https://doi.org/10.5281/zenodo.834454.

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Sheet-fed offset has been one of the most popular printing methods to print cellulosic based substrates. Dry toner based digital printing methods have come to exist recently and captured a significant market share especially for short run print jobs. But if the ink doesn’t dry on proper time, it may result into set-off and it may hamper press speed. Aim of this paper is to analyse and compare ink setting and drying capabilities of Sheet-fed offset and Dry Toner based Digital printing technologies. Uncoated, gloss coated and matte coated papers were taken to examine the inkdrying behaviour of b

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9

Deepak Kumar. "Comparative Colour Gamut Analysis Of Piezoelectric Inkjet (PIJ) And Sheet-Fed Offset Prinitng Technologies." Tuijin Jishu/Journal of Propulsion Technology 43, no. 4 (2022): 175–79. http://dx.doi.org/10.52783/tjjpt.v44.i3.1925.

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This paper presents a comprehensive comparative analysis of the colour gamut achieved by Piezoelectric Inkjet (PIJ) and Sheet-Fed Offset printing technologies. The colour gamut, a crucial aspect of print quality, is a measure of the range of colours a printing process can reproduce. Both PIJ and Sheet-Fed Offset printing are widely employed in various industries, including graphic arts and commercial printing. The research methodology involves the characterization of the colour gamut of PIJ and Sheet-Fed Offset printing through empirical experiments and spectral measurements. A diverse set of

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10

Chen, Li Qiang. "Research of Sheet-Fed Offset Damping System Green Printing Technology." Advanced Materials Research 380 (November 2011): 306–10. http://dx.doi.org/10.4028/www.scientific.net/amr.380.306.

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Lithographic printing press must maintain a stable standard printing environment; we need to maintain the ink-water balance for achieve stability print quality. Not only stable for ink supply, but also stable supply of dampening solution from dampening circulation system. The study tries to conduct less proportion of alcohol to reduce emissions of volatile IPA, using green printing technology in the standard production. This study analyzed a variety of automatic sheet-fed offset press dampening system to study how to control the tank fluid additives, and reduce alcohol consumption. Design stan

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Amaranand*1, Ankita2 &. Ravinder Kumar3. "SHEET FED OFFSET PRINTING PROCESS: COLOR MATCHING TECHNIQUES ON DIFFERENT PAPER SUBSTRATES." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 3 (2019): 183–84. https://doi.org/10.5281/zenodo.2616861.

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In printing industry printer is expected to reproduce the identical replica of the  original, both should be identical to each other in every manner. But practically, sometimes printed product does not satisfy the customer as colors printed, are not matching with original. On different papers, printed ink appears different due to quality of paper, color separation, etc. so in this project, study will be done on color matching strategy on various paper substrates  in Sheet Fed Offset Printing Process.

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12

Arohit, Goyat*1 Nishan Singh2 &. AbhishekChahar3. "AN OBSERVATORY ANALYSIS OF FOUNTAIN SOLUTION USED IN WEB FED OFFSET & SHEET FED OFFSET PRESSES WITH REGARD TO PH AND CONDUCTIVITY FACTORS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 11 (2018): 103–9. https://doi.org/10.5281/zenodo.1491313.

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In this paper, we have analyzed Fountain Solution Used in Web Fed Offset & Sheet Fed Offset Presses with regard to pH and Conductivity factors. Printing is a Servicing Industry. It is an art, craft, science, & technology of reproduction of ‘n’ number of replicas with the help of a suitable Printing Process on the desired substrate and surface. It has an impact on everyone’s life. Printing is the second largest industry of India. We are basically providing services to the society; being overlapped by various branches of Education like Computers, Electronics, Manufactur

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Arohit, Goyat*1 Nishan Singh2 &. AbhishekChahar3. "AN OBSERVATORY ANALYSIS OF FOUNTAIN SOLUTION USED IN WEB FED OFFSET & SHEET FED OFFSET PRESSES WITH REGARD TO PH AND CONDUCTIVITY FACTORS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 11 (2018): 103–9. https://doi.org/10.5281/zenodo.1491329.

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In this paper, we have analyzed Fountain Solution Used in Web Fed Offset & Sheet Fed Offset Presses with regard to pH and Conductivity factors. Printing is a Servicing Industry. It is an art, craft, science, & technology of reproduction of ‘n’ number of replicas with the help of a suitable Printing Process on the desired substrate and surface. It has an impact on everyone’s life. Printing is the second largest industry of India. We are basically providing services to the society; being overlapped by various branches of Education like Computers, Electronics, Manufactur

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Aman, Bhardwaj* Vandana. "COMPARATIVE ANALYSIS OF SOLID INK DENSITY, PRINT CONTRAST AND PRINT GLOSS OF METALIZED BOARD PRINTED WITH SHEET FED OFFSET PRINTING PROCESS AND DRY TONER BASED DIGITAL PRINTING PROCESS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 7 (2016): 627–31. https://doi.org/10.5281/zenodo.57051.

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Metalized boards are frequently used in the packaging industry. In our study, we compare the Print properties of metalized board printed with the primer coat on sheet fed offset and dry toner based digital printing process. Metalized boards are give good print properties when printed with digital printing process for short run jobs. Comparatively high contrast is found in less solid ink density in digital printing.  

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15

Mr., Ramesh Kumar*1 Mr. Bijender2 &. Mr. Sandeep Boora3. "A SURVEY OF ECO-FRIENDLY TECHNIQUES COMING FORTH IN SHEET-FED OFFSET PRESSES." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 6 (2017): 388–92. https://doi.org/10.5281/zenodo.814508.

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Objective of this research paper is to put emphasis on various eco-friendly techniques existing today in sheet fed offset printing organizations and their futuristic aspects. Reducing pollution, decreasing carbon footprints and lowering volatile organic compounds have become essential today for various offset printing organizations for sustainable developments. To get aware of eco-friendly techniques coming forth, a survey of 15 printing organizations was conducted in Delhi NCR and BADDI (Himachal Pradesh) region. The data was collected with the help of questionnaire consisting of 8 questions.

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Arohit, Goyat*1 Nishan Singh2 &. Bhupender3. "SHEET-FED OFFSET PRINTING PRESS: ANALYZING& OPTIMIZING THE CONSUMPTION OF PRINTING SUBSTRATES LIKE UNCOATED PAPER, COATED PAPER, &POLYPROPYLENE (PP) SHEETS (A CASE STUDY OF AKRITI PRINTERS, MANESAR)." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 2 (2019): 176–82. https://doi.org/10.5281/zenodo.2578901.

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This study was carried out atAkriti Printers, Manesar. It is to reduce the consumption of printing substrate along with the optimum consumption of printing substrate and explore the possible ways of optimum utilization of the printing substrate used in sheet-fed offset processes in Akriti Printers Manesar. Coated Paper, Uncoated Paper, and Polypropylene (PP) Sheets are the kind of substrates being used in this work.

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Taha, K., M. Metwally, F. Ahmed, and G. El-Nashar. "A MECHATRONIC SYSTEM FOR COLOR REGISTRATION IN SHEET-FED OFFSET PRINTING." International Conference on Applied Mechanics and Mechanical Engineering 15, no. 15 (2012): 1–8. http://dx.doi.org/10.21608/amme.2012.37059.

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18

Norrick, Nicklas. "Statistical Consideration of Uncertainties in Bolted Joints of the Drive Train of Sheet-Fed Offset Printing Presses." Applied Mechanics and Materials 807 (November 2015): 3–12. http://dx.doi.org/10.4028/www.scientific.net/amm.807.3.

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This paper outlines a design process for the bolted joints of the drive train of sheet-fed offset printing presses incorporating statistical data and methods. Sheet-fed offset printing presses are driven by a continuous geared drive train along the length of the press. The bolted joints of the drive train connecting the gears to the cylinders of the press are subjected to high loads, especially during emergency stops. A nonlinear mechanical model of a printing press implemented in Matlab/Simulink is presented which is used to calculate the occurring loads. Measurements of linear and nonlinear

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19

Vandana and Ambrish Pandey. "Comparative analysis of print contrast of hybrid modulated digitally modulated screening on different grades of paper." Scientific Temper 14, no. 03 (2023): 771–73. http://dx.doi.org/10.58414/scientifictemper.2023.14.3.31.

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Information technology and Innovation has transformed our life; the same is true for printing. Screening technology has developed and become highly advanced during past few decades. The aim of this research is to identify the significant difference in print contrast between hybrid modulated (XM) digitally modulated (DM) screening on different grades of paper printed by sheet-fed offset printing process. Samples sheets are printed with same solid ink density to make valid comparison. Around 150 sheets are printed to achieve target solid ink density value (+ 0.05) during printing. After the dens

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Li, Lian Fang, Wei Min Wang, Chang Xing Liao, Yi Yi Zhou, and Jia Hao Gong. "Studies on Treatment of Waste Fountain Solution from Sheet-Fed Offset Printing." Applied Mechanics and Materials 731 (January 2015): 321–24. http://dx.doi.org/10.4028/www.scientific.net/amm.731.321.

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This article explores treatment method of waste fountain solution from sheet-fed offset printing. First calcium chlorate is used to have a oxidation treatment for the waste water, then it is dealt with composite coagulants polyaluminium chloride (PAC) and cation polyacrylamide (CPAM) under different pH value. The results show that quality of the waste fountain solution could reach the national second-grade standard of sewage comprehensive discharge through the above treatment (GB 8978--1996) when treating with 0.7 g/L calcium hypochlorite and then sinking with PAC 4.0 g/L, CPAM 75.0 mg/L under

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Ström, Göran, and Anna Englund. "Effect of coating structure on print gloss after sheet-fed offset printing." Nordic Pulp & Paper Research Journal 18, no. 1 (2003): 108–15. http://dx.doi.org/10.3183/npprj-2003-18-01-p108-115.

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Soelinto, Soelinto, Rumbel Galingging, Linda RM Gurning, and Tri Cipta Utomo Prasetyo. "Pengendalian Scumming pada Mesin Lithrone 440 di PT. Kartika Naya." Magenta | Official Journal STMK Trisakti 3, no. 02 (2019): 534–50. http://dx.doi.org/10.61344/magenta.v3i02.75.

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Offset printing has become the most frequently used print in the printing industry, especially with the increasing demand for carton packaging in the industry. With these needs, printing using an offset system is very necessary, especially with the high flexibility of operating sheet fed offset printing machines. The main obstacle encountered in improving print quality is the problem of scumming in the printing process. This problem is very detrimental to the printing company, because increasing raw materials into waste (dirty prints / garbage) and the print completion time becomes longer. Thi

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Pankaj, Kumar*1 &. Sanjeev2. "COMPARATIVE STUDY ON ISO STANDARDS AND BIS STANDARDS FOR SHEET FED OFFSET PRESSES AND THEIR APPLICATIONS IN INDIAN PRINT INDUSTRY." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 11 (2017): 559–63. https://doi.org/10.5281/zenodo.1405575.

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Standards are guidelines, processes and procedural instructions for production of multi-colorprinted products with repeatable quality that are recognized in the graphic arts industry and particularly in printing. International standards are also known as industry standards, which are developed by individual manufacturers or joint ventures. The central point of this study is to analysis the standards adopted by industries and the same drawn up by the ISO (International Organization for Standardization) “to facilitate the international coordination and unification of industrial standards&r

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Vandana and Ambrish Pandey. "Comparative study of delta e of hybrid modulated and digitally modulated screening on different grades of paper." Scientific Temper 14, no. 03 (2023): 891–94. http://dx.doi.org/10.58414/scientifictemper.2023.14.3.51.

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Screening technology has become highly advanced during past few decades. This research emphasizes on the use of hybrid modulated(XMS) and digitally modulated screening (DMS) on different grades of paper for evaluating quality parameter. The purpose of thisresearch is to determine the significant differences that exist in measurable print attribute Delta E at 25%, 50% and 75% tint printed bymulticolor sheet-fed offset printing process using XM and DM screening. The experiment is conducted using FOGRA39/ PSO standard.The master of 44.5×29.5 cm output is prepared by incorporating quality measurin

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GIGAC, JURAJ, MIROSLAVA KASAJOVÁ, and MONIKA STANKOVSKÁ. "The influence of paper surface energy on multicolor offset print mottling." February 2014 13, no. 2 (2014): 55–64. http://dx.doi.org/10.32964/tj13.2.55.

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An evaluation of a series of commercial uncoated, semimatte, and glossy coated woodfree papers for the multicolor sheet-fed offset press is presented. This study is aimed at better understanding of mutual influences of surface free energy, paper surface roughness, and fountain solution on print mottling occurring in full-scale printing conditions. Each paper has unique structure in terms of surface roughness, porosity, and surface energy that are the result of manufacturing technology. At the point of contact of liquid with paper, the surface dynamic process of liquid absorption by paper occur

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Mohit, Kumar* Aman Bhardwaj. "COMPARATIVE ANALYSIS OF PRINT GLOSS OF METALIZED SHEETS PRINTED WITH SHEET FED OFFSET PRINTING PROCESS AND DRY TONER BASED DIGITAL PRINTING PROCESS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 6 (2016): 862–64. https://doi.org/10.5281/zenodo.56033.

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Printing metalized sheets with offset printing process requires it to be primer coated prior to the printing. This is complex, time consuming and incorporates some additional cost. Thus, it has not been known in view of the prior art to utilize digital printing methods to create sharp, high quality, complex, multi-color, foil-effect designs foil-covered surfaces at relatively high speed and low cost. it was observed that the sheets printed with Dry toner based  Digital printing process have comparatively higher gloss in case of non primer coated sheets.

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GUJJARI, CHAMUNDI, WARREN BATCHELOR, AFRIANA SUDRANO, and PAUL BANHAM. "The relationship between tack and linting in offset printing of newsprint grades." August 2009 8, no. 8 (2009): 4–9. http://dx.doi.org/10.32964/tj8.8.4.

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Linting is the removal of material from the surface of newsprint grades during offset printing. Excessive linting can reduce image quality and press productivity. Ink tack is the force exerted by the filaments of the ink film as it splits. For this study, ink tack at the exit of a laboratory printing nip was measured for seven batches of newsprint and eight batches of an improved, higher brightness newsprint grade. The average measured tack for the seven batches of newsprint was 30% higher than for the eight batches of improved newsprint. For these batches, we measured lint using tape pulls af

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DAHLVIK, PETER, GUILLERMO BLUVOL, KARL-HEINZ KAGERER, MANFRED ARNOLD, and DAN VARNEY. "Influence of topcoat pigment particle size distribution on tail-edge pick resistance in sheet-fed offset printing." June 2012 11, no. 6 (2012): 51–58. http://dx.doi.org/10.32964/tj11.6.51.

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This paper describes ground calcium carbonate pigment particle size distribution and its influence on the tail-edge picking of pilot-coated paper as determined in full-scale sheet-fed offset printing. A tailor-made method was developed using a modified printing plate and high-tack inks to assess surface strength in terms of edge picking. In addition to the type, fineness, and particle size distribution of the ground calcium carbonate pigment, we also evaluated the solids content of the coating color, binder level, clay usage, and calendering. The printing test method provided differentiation r

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Nakano, Tadashi. "Substances of the Environment-conscious Sheet-fed Ink and Standard for Offset Printing Services." JAPAN TAPPI JOURNAL 59, no. 7 (2005): 1029–35. http://dx.doi.org/10.2524/jtappij.59.1029.

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Elwan, Ahmed Ahmed. "Influence of Ink Viscosity Level on Tone Value Increase in Sheet-Fed Offset Printing." مجلة التصميم الدولية 7, no. 2 (2017): 307–12. http://dx.doi.org/10.12816/0046577.

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Vandana, PANKAJ KUMAR, Vikas Jangra, and Ambrish Pandey. "An empirical study on the print suitability of hybrid modulated screen and digitally modulated screen in offset printing process." Scientific Temper 14, no. 04 (2023): 1394–57. http://dx.doi.org/10.58414/scientifictemper.2023.14.4.49.

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DM Screening is the advanced stochastic screening. It combines the best features of other screening technologies like AM, FM, and XM and is compatible with heat-set, cold-set and sheet-fed offset presses. The aim of this research is to identify the print suitability of hybrid modulated screen (XM) and digitally modulated screen (DM) in the offset printing process on a coated substrate by comparing different quality parameters like SID, trapping, print contrast and dot gain. Coated sample sheets are printed with the same solid ink density by using XM and DM screening to make valid comparisons.

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Dendge, Ramesh R. "Analysis of Printing Pressure Using Density Measurements of Printed Ink." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 11, no. 01 (2019): 39–46. http://dx.doi.org/10.18090/samriddhi.v11i01.6.

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In process-color lithographic sheet-fed offset printing the uniformity of printing pressure is critical in achieving consistent print quality. The variations in printing pressure at blanket and impression cylinder nip affect the resultant print density of process colors. The variations in printing pressure are observed not only within the print run but also in the print area of the sheet. The printing pressure is the function of machine engineering, blanket cylinder covering material, substrate, and thickness of image carrier, packing materials used in packing of blanket and plate cylinder. Ma

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Bernie, Jean-Philippe, Harshad Pande, and Richard Gratton. "An instrumental determination of the effect of sheet formation on the printability of uncoated fine paper." TAPPI Journal 5, no. 10 (2006): 28–32. https://doi.org/10.32964/tj5.10.28.

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Sheet formation has an important effect on print quality. For manufacturers of printing grades, this relationship is important as they try to ensure the best possible printability for their product. In the present work, we determined, for uncoated fine paper, the effect of formation on offset print mottle. We examined a set of 89 North American commercial uncoated fine papers, ranging in grammage from 72 to 104 g/m2, coming from different mills and different companies. The sheets were printed on a Heidelberg four-color Speedmaster sheet-fed offset press operated under commercial conditions. Th

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34

Cheng, Chang Xian. "Dynamic Optimization Design of High-Speed Under-Table Swing-Arm Gripper System in Sheet-Fed Offset Press." Advanced Materials Research 230-232 (May 2011): 916–19. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.916.

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By analyzing various kinds of gripper systems of different sheet-fed offset presses, the under-table swing-arm system, with a fixed axis, has the advantages of meeting high-speed press running requirement, keeping longer dwell time of printing sheets, helping improve print registration, and hence in favor of assuring HIFI print quality while having high press output. The dynamic optimization design of the under-table swing-arm system is vital to the higher performance of the system on the state of the art press machines. Through dynamic analysis of the gripper system, the way of dynamic optimi

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STRÖM, GÖRAN, and JANET PRESTON. "Impact of local variation in coating structure on uniformity in print gloss." May 2013 12, no. 5 (2013): 43–51. http://dx.doi.org/10.32964/tj12.5.43.

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Point-to-point variation in the gloss of a print has been reported to be one of the most visually disturbing aspects of a printed paper. This work sought to determine the effect of pigment and binder content on the coating structure, surface properties, and print gloss variations occurring in a printed offset paper. The results from a pilot coating and full-scale sheet-fed offset printing trial are reported, with special emphasis on uniformity in print gloss. The effect of calendering and print impression also was considered. Uniformity in print was analyzed in terms of print gloss variation (

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Mr., Nishan Singh*1 Mr.Sandeep Boora2 &. Mr. Amit Singh3. "COLOUR CONTROL IN SHEET-FED OFFSET PRINTING PRESSES USING MELLOW COLOUR MANAGEMENT SYSTEM (A Case Study Of Manohar Filaments Private Limited, Sonipat)." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 751–55. https://doi.org/10.5281/zenodo.834481.

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Colour management consists of a range of technologies which help in correct rendering, correct conversion, correct production and correct interpretation of the colour. A wide range of colour management systems already have been introduced and Mellow colour is one of the latest of them. Sheet-fed offset is production based industry in which the product has to be matched with standards using colour management software to check the deviations and to optimize the production quality. Five print jobs were taken into study and aim of this paper is to find various facilities and methods using which th

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Guo, Jun Zhong, and Jun Ping Yang. "Impact Analysis of Piston Velocity to Cylinders Motion on Pneumatic Impression On-Off Mechanism of Sheet-Fed Offset Press." Advanced Materials Research 215 (March 2011): 327–31. http://dx.doi.org/10.4028/www.scientific.net/amr.215.327.

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The impression on-off mechanism is an important part of the offset press, the design and manufacture have relationship with the performance of the printing presses and the quality of the printed products. Pneumatic impression on-off mechanism has the advantages of high position accuracy, reliable and highly automation. This article takes pneumatic impression on-off mechanism as the object of study, the three-dimensional digital model of the impression on-off mechanism is established and the process of on-off pressure is analyzed by using ADAMS software, the piston minimum velocity when the cyl

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Dahlvik, Peter, and Georg Hausler. "Improving the inkjet codability of folding boxboard." February 2019 18, no. 2 (2019): 145–52. http://dx.doi.org/10.32964/tj18.2.145.

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Good inkjet printability requires a coating layer with good water absorption properties. A properly designed open coating structure helps to efficiently remove the water phase of the printing ink while controlling the penetration of the ink. The absorptivity of the coating is primarily dependent on the pigment type, as well as the binder type and amount. The pore volume of the coating layer can in principle be increased by introducing a structured pigment or a pigment with narrow particle size distribution. It is also important to optimize the binder type and level, with the aim to create a co

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Oliveira, Alvaro, Filipa Almeida, Regina Caldas, Teresa Pereira, and Celeste Brito. "Dermatite de Contato Alérgica à Colofónia em operador de impressões gráficas- Caso Clínico." Revista Portuguesa de Saúde Ocupacional 10 (December 31, 2020): 1–8. http://dx.doi.org/10.31252/rpso.16.10.2020.

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INTRODUCTION Colophony is a complex mixture of over one hundred compounds, resulting from the distillation of oleoresin, obtained from plants belonging to Pinaceae (mainly Pinus genus). The main allergens are the rosin oxidation products (unmodified and modified), as well as some of the new resin acids synthesized during their modification. It has numerous domestic or industrial applications, and exposure to these compounds is practically universal. We report a case of an occupational allergic contact dermatitis to colophony. CASE REPORT A 41-year-old caucasian male, graphic print operator for

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"A Study on the Assessment of Quality of Printed Sheets in Offset Sheet-Fed Printing." JST: Engineering and Technology for Sustainable Development 31, no. 1 (2021): 41–45. http://dx.doi.org/10.51316/jst.148.etsd.2021.31.1.9.

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The quality parameters of printed sheets should be controlled constantly during the sheet-fed offset printing process. This allows the detection of any problems in the initial stages of the printing process. The final control of the quality of printing sheets will eliminate error products before delivering to the costumers. The results of this control should be analyzed continuously. The total quality management (TQM) is an effective method in controlling, doing statistics, and assessing the errors in the offset printing process. Simultaneously, this method delivers the main errors frequently

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Kowalczyk, Jan. "Influence of selected sheet-fed offset printing conditions on primary mottling." Nordic Pulp & Paper Research Journal, May 30, 2024. http://dx.doi.org/10.1515/npprj-2024-0009.

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Abstract The key parameter in the printing process is the evenness of applying the ink layer on the printing substrate. It determines the quality of the produced prints. One of the many factors affecting the final evenness of the ink layer on the print is the phenomenon of mottling, which is caused by the non-uniform internal structure of the paper. The aim of this work was to analyze the influence of basic printing parameters on the value of the mottling index. The research showed a significant effect of the pressure in the printing unit of the offset machine and the thickness of the ink laye

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Tuan Phung, Anh, Quang Hung Nguyen, Hong Quyen Duong, and Hong Ha Cao. "STUDY OF WETTING ON THE NON-IMAGE AREA OF OFFSET PRINTING PLATES BY AN ALTERNATIVE ISO-PROPYL ALCOHOL-FREE FOUNTAIN SOLUTION." ASEAN Engineering Journal 10, no. 2 (2021). http://dx.doi.org/10.11113/aej.v10.16596.

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In this study, an alternative aqueous isopropyl alcohol-free fountain solution for sheet-fed offset printing is prepared comprising 5 w/w% McIlvaine's buffer system for pH control, 0.3 w/w% Polysorbate 80 as a surfactant, 1 w/w% magnesium nitrate hexahydrate as a conductivity agent and 10 w/w% ethylene glycol mono-butyl ether as an additional wetting agent. The percentages of each composition are w/w% of active and then adjusted to 100 w/w% by adding distilled water. The contact angles of the obtained fountain solution on non-image areas of three common offset printing plates: CTP plate of Kod

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"Improving the overall equipment effectiveness of Sheet-Fed offset printers: A case study." ARPN Journal of Engineering and Applied Sciences, June 30, 2024, 493–500. http://dx.doi.org/10.59018/042467.

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This study investigates a framework for enhancing the Overall Equipment Effectiveness (OEE) of sheet-fed offset printers, focusing on the packaging sector. The research explores the understanding and implementation of OEE valuation within this context. Through a specific case study, the OEE value is 22%, with contributions from Availability, Performance, and Quality rates at 41%, 58%, and 94%, respectively. These findings underscore a substantial deviation from the world-class standard of 85%, indicating significant room for improvement. Based on Six Big Losses (SBL) and Cause and Defect diagr

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Prof., (Dr.) Rajendrakumar Anayath, and Kumar Baral Anjan. "Critical Analysis of Mottling and its Impact on Various Grades of Paper Substrates Printed under Conventional Sheet Fed Offset, Dry Toner & Liquid Toner Based Digital Print Engines." July 24, 2016. https://doi.org/10.5281/zenodo.6893955.

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Mottle is one of the print quality factors which highly affect the final print in any printing system. Print mottle is without doubt one of the most important factors regarding visual impression of print quality in any printing system. It is usually the result of uneven ink layer or non-uniform ink absorption across the paper surface and it is more prominently visible in middle tone images or areas of uniform colour such as solids and continuous tone screen images. A mottled picture highly makes the picture smudgy and in most of the cases is not acceptable to the end user. It is required to pr

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