Journal of Printing Science and Technology
Online ISSN : 1882-4935
Print ISSN : 0914-3319
ISSN-L : 0914-3319
Volume 51, Issue 6
Displaying 1-10 of 10 articles from this issue
Special Review 1
  • Mitsugu SATO
    2014 Volume 51 Issue 6 Pages 400-403
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    We investigated how to reduce volatile organic carbon (VOC) diffusion into press rooms 6 years before the related outbreak of bile duct cancer in Osaka in 2012. Using a portable flame ionization detector (MicroFID), we visited more than 20 printing rooms across Japan to measure VOC concentrations. The results showed that the main sources of VOC diffusion into the press room were: 1) the cleaning solution, 2) the dampening solution containing isopropanol, and 3) the ink. The waterless offset process resulted in far less VOC diffusion than conventional offset printing due to the lack of water use. Circulation of air by an air conditioner contributed to lower concentrations of VOCs, particularly by minimizing high-concentration areas in the air. Furthermore, use of lidding materials is very effective in reducing VOC diffusion.
    Download PDF (2762K)
  • Kuniharu WATANABE
    2014 Volume 51 Issue 6 Pages 404-409
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    In this report, we describe environmental measures that have recently been applied in lithographic printing factories. In recent years, the Japanese lithographic printing industry has responded to environmental compliance issues associated with the Ordinance on Prevention of Organic Solvent Poisoning and the revised Water Pollution Control Law (June 2012 revision). Environmental issues in the plate-making process include wastes produced by the development process and the gum treatment process. In recent years, waste reduction devices have been installed for the developer. The environmental performance of the plate-making process is excellent using the untreated computer-to-plate process released in 2004. In the printing process, isopropanol (IPA) in the fountain solution and the cleaning solvents for ink have been the primary focus. For the ink cleaning solvents, we selected petroleum fractions consistent with the organic solvent poisoning prevention method (mineral spirits), because there was no good alternative. However, the EU has recently switched to safer cleaning solvents in response to the European Solvent Directive. Until recently, IPA-free fountain solutions have mainly consisted of safer glycol ether compounds. However, fountain solutions have become available that are nearly zero-volatiles, allowing the use of fountain solution technology that is free of organic solvents.
    Download PDF (2753K)
  • Tadao IOKIBE
    2014 Volume 51 Issue 6 Pages 410-413
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    We developed a process for environmental assessment of waterless offset printing, an environmentally favorable technology. The authorized software PGG, developed by Dr. Hirokazu Shimizu and later upgraded to cloud-based, enables small- to medium-sized printers to easily calculate their CO2 emissions. We first addressed carbon offsets, and after the waterless printing Product Category Rule was authorized by the Japan Environmental Management Association for Industry and carbon footprint system authentication for our 13 group members was approved, we incorporated assessment of carbon footprints. Moreover, in future years, we will begin developing an environmental AR marker for further reinforcement of reliability and user-friendliness for promotional uses.
    Download PDF (2661K)
  • Toshimitsu MATSUMOTO, Hisayoshi TABATA
    2014 Volume 51 Issue 6 Pages 414-418
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    The life cycle of products, from the procurement of raw materials to the disposal method, varies depending on product attributes. Life-cycle assessment is thus used to quantitatively evaluate the total environmental impact of a product over its lifetime considering its raw materials, production processes, and all other relevant factors contributing to its environmental impact. The Japan Waterless Printing Association and Toray Industries, Inc. compared conventional and waterless printing with the "T-E2A: Toray Eco-Efficiency Analysis" tool to evaluate the environmental and economic characteristics of each product and printing process. The results showed that waterless printing is both environmentally and economically superior to conventional printing, as it minimizes material waste during startup and reduces electrical bills with faster startup.
    Download PDF (2715K)
  • Masao UEKURI
    2014 Volume 51 Issue 6 Pages 419-425
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    There are many environmental requirements and regulations that apply to corporations in the areas of Green Purchase, management and control of chemical substances, emissions control of volatile organic compounds , and prevention of global warming. The Japan Federation of Printing Industries has been honoring printing factories that achieve high standards for environmental protection with Environmentally Excellent Printing Factory Awards and has also been certifying printing factories, printing consumables, and printed products that exceed environmental standards. These schemes will encourage many companies to address environmental issues and improve the environment in printing-related facilities, as well as raising the level of social responsibility among printing companies.
    Download PDF (2753K)
Special Review 2
  • Adi Susanto, Sunardi, Antono Adhi, R. Basio, Meniek Srining Prapti, ...
    2014 Volume 51 Issue 6 Pages 426-438
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    The objectives of this project are to introduce Indonesian Creative Industry Today, from business opportunity, trend, technology and development. In this project, there were 3 sections of explanation also with SWOT Analysis. Currently, Indonesian Printing Industry was growth significantly in all sectors since the last of 20 years. Investors make many investments in this in technology and high tech printing machinery. Unfortunately the growth in the technology sector and the machinery is not balanced with the human resources that support the growth of technology and machinery. Indonesian Creative industries lack of competent human resources that expert in this industry. Since Indonesian New Government concerning and established in this industry as 10th development Industry covering Printing, Graphic Design, Media Communication, etc. they give chance to many universities mix with Industry create kind of program and opportunities that support this industry. Printing Sector mostly huge industry today at Indonesia. This project describing about Indonesian Creative Industry needs, development and business opportunity briefly. Based on the survey result, the industry needs competent human resources is first priority. At Indonesia, education for printing in bachelor degree or management level is rare, here education degree for printing only vocational degree (high school and diploma) which their program prepared for operator and executants. Now for managerial level is highly needed in order to balance the growth of technology in printing. The Opportunity in this Creative Industry especially printing Sector such as Screen Printing, Packaging, Media Information, Textile, Apparels and Outdoor as entrepreneur also big chance. Here we established some strategies in order to increase the quality of Indonesian Human Resources in Creative Industry on printing business, and future development description.
    Key words: creative industry, printing, printing industry, human resources, printing education
    Download PDF (3433K)
  • Antono Adhi, S. Adi Susanto, Eko Afriyanto, Eli Mas'idah, Hersatoto Li ...
    2014 Volume 51 Issue 6 Pages 439-444
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    PT. Masscom Graphy Semarang is a newspaper printing company. One of Printing Web Machine, PT. Masscom Graphy used Manugraph Cityline with a capacity of 35,000 CPH. Unfortunately this machine has a lack in rotation transmission that continued rotation of the electric motor to the main tower. This transmitter has a limitation because of the angle of the propeller shaft has high position. It has not standard requirement that universal joint cannot accept the load of electric motors and often broken by a period of 3 until 6 months. It make the system damaged, the engine should not be stopped several days for repairing. Modification designs add transmission-gearing system to replace the position of propeller shaft in order that it position becomes straight, and the acting forces become twisting force. Universal joint become more durable and the level of damage that often occurs can be reduced. Modification design the engine transmissions of Manugraph type Cityline, it is required several components namely cone gears, solid axle and embedded cotter pin. Spiral cone gear, can be used to change transmission angle until 900, has a bigger contact angle, and cannot slip. The results of the calculation the number of pinion teeth are 26 and 53 pieces of large teeth on the gears. Chosen material is SNC 22. Diameter of shaft is 70 mm. Material of shaft is S55C and cotter pin size 20×12×74.54 mm with material S50C.
    Download PDF (2638K)
  • Aran Hansuebsai, Yasushi Hoshino, Krairop Charoensopa
    2014 Volume 51 Issue 6 Pages 445-449
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    Recently the technologies of digital printing system are advanced rapidly and the image quality of these devices increases remarkably. The effect of its increase is advertized from several points, however the studies on its effect is not carried out enough. Here we studied the subjective estimation on child's skin face and key's surface printed images to investigate the effect of edge enhancement using Laplacian method. This includes 5 stages estimation and semantic difference. The observation indicated that the image quality, detail expression and texture, likeness, strong, comfortable and natural feelings are affected as the amount of edge enhancement is increased. The mechanism of their increase is discussed and it is found that the image quality and these feelings are important factors which can be improved due to easy recognition of their clues. However, these approaches show the different limit of human eye depending on object types.
    Key words: edge enhancement, texture feeling, image quality, detail expression
    Download PDF (2436K)
Original Paper
Survey Report
  • Kenzo ISHII
    2014 Volume 51 Issue 6 Pages 457-471
    Published: 2014
    Released on J-STAGE: January 15, 2015
    JOURNAL OPEN ACCESS
    JFPI investigated "actual condition survey of volatile organic compound occurrence in an offset printing plant", and has measured VOC density during offset presswork on five printing plants with cooperation of a printing machine, printing consumable, measuring instrument manufacturer and a related organization, and evaluated working environments. The result indicated that every five printing plants were well managed and in good conditions. But high concentration of VOC was observed during ink roller washing work of short period of time (approx.5 min) and attention is needed in this process. Industrial Safety and Health Law has been revised and risk assessment now becomes mandatory. Thus chemical safety measures will become more important, JFPI will continuously provide concrete counter measures and planning.
    Download PDF (4920K)
feedback
Top