JAPAN TAPPI JOURNAL
Online ISSN : 1881-1000
Print ISSN : 0022-815X
ISSN-L : 0022-815X
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Volume 77, Issue 12
Displaying 1-18 of 18 articles from this issue
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ENVIRONMENT
  • A Report of the 30th Environmental Conference
    Environmental Technical Committee
    Article type: meeting-report
    2023 Volume 77 Issue 12 Pages 1041-1042
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1041
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  • Countermeasures Against Factory Odor Using Odor
    Takayuki Ebihara
    Article type: other
    2023 Volume 77 Issue 12 Pages 1043-1048
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1043
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    IoT systems commonly use sensors to collect data which are then managed in the cloud.
    Our company has developed IoT systems by wirelessly connecting commercially available sensors as well as in-house developed sensors. In particular, we are exploring how to quantify and express the five human senses.
    One user suggested that if we could visualize ‘smell,’ it could have various applications across different fields.
    This led us to initiate the study of visualizing odors. Starting with the numerical values from ‘smell’ sensors, we discovered that different factories faces various challenges.
    As a result, we have been able to commercialize the IoT integration of ‘smell’.
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  • By Ultra BM-R System（Ultra Fine Bubble + Recycled Raw Material Modifier）Environmental Odor Countermeasures and Energy and Cost Saving Measures
    Kazuhisa Hashimoto
    Article type: other
    2023 Volume 77 Issue 12 Pages 1049-1052
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1049
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    In recent years, due to soaring raw material and fuel prices, efforts to save energy and cost have become active at paper mills, especially at paperboard mills, but there are also issues in terms of stable quality maintenance and environmental measures.
    In this paper, we will discuss the problem of product odor and raw materials associated with cost saving by reusing recovered fibers, using surplus sludge discharged from biological wastewater treatment processes as raw materials, and water saving and energy-saving measures by recycling white water. As a countermeasure against the problem of generating the dangerous gas hydrogen sulfide in the papermaking process and the environmental problem caused by odor generated from the dryer exhaust duct, we will introduce the Ultra BM-R （hereinafter referred to as UBM-R） system, which combines Ultra Fine Bubble （hereinafter referred to as UBF） and the recovery material modifier Mushugen BM-R （hereinafter referred to as BM-R）.
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  • Standards for Synthetic Resin Utensils, Containers and Packaging Under the Food Sanitation Act
    Tomoyuki Abe
    Article type: other
    2023 Volume 77 Issue 12 Pages 1053-1056
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1053
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    Due to the revision of the Food Sanitation Law, the Positive List （PL） System for Food Utensils, Containers and Packaging was enforced from June 1, 2020, and now the sanitation of food utensils, containers and packaging is attracting a lot of attention. This paper will explain the standards for utensils, containers, and packaging under the Food Sanitation Law and describe how to set items and conditions for sanitary tests to ensure the safety of food utensils, containers and packaging and how to confirm the requirements before requesting sanitary tests. The author expects that this paper helps improve the hygiene of food utensils, containers and packaging.
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  • Container and Packaging Standards for Milk, etc. and Association Voluntary Standards: Past, Present, and Future
    Ryogo Hirano
    Article type: other
    2023 Volume 77 Issue 12 Pages 1057-1061
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1057
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    The Japan Milk Containers and Equipment Association has developed along with the legislation of the Ministerial Ordinance on Ingredient Standards for Milk and Milk Products （Ministerial Ordinance No. 52, December 27, 1951） established by the Ministry of Health, Labour, and Welfare（MHLW）.
    Historically, dairy containers and packaging have been governed under different rules than other food products in the Food Sanitation Law. Standards for synthetic resins used in dairy product containers and packaging were originally developed to address milk cartons. These standards follow a positive list approach and prohibit the use of resins and additives other than those specified in the standards.
    For non-dairy products, the negative list system was used for a long time, but in 2020 the Food Sanitation Law was revised and a positive list system was introduced for the containers and packaging of all processed foods including those that are not dairy-based. However, different standards have long been applied to dairy and non-dairy products, and contradiction or inconsistency have been noted in the standards for containers and packaging for both.
    To address this issue, the association is currently collaborating with related organizations within the dairy industry to compile specific proposals. In addition, the MHLW is working with the association and related organizations to develop a draft revision of the milk and dairy product container and packaging standards. It is expected that the revision of the standards will enhance the convenience and functionality of containers, thereby contributing to an increase in milk consumption.
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  • 30 by 30 for Biodiversity
    Makoto Kobayashi
    Article type: other
    2023 Volume 77 Issue 12 Pages 1062-1066
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1062
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    A new global goal to be achieved by 2030, the Kunming and Montreal Framework for Biodiversity, was adopted. With regard to resource mobilization, the Global Framework Fund for Biodiversity will be established in the Global Environment Facility （GEF） in 2023. With regard to the distribution of benefits related to the use of digital sequence information （DSI） related to genetic resources, it was decided to establish a multilateral mechanism and to establish an open working group to consider measures other than the multilateral mechanism for COP16.
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  • The Outline of “M-fine”, Submerged Membrane Unit for Wastewater Treatment
    Kazuhiko Takayama
    Article type: other
    2023 Volume 77 Issue 12 Pages 1067-1071
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1067
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    The membrane bioreactor of M-fine series was developed by AWA PAPER TECHNOLOGICAL COMPANY, Inc. based on the technology of functional papers and filters, especially support fabric of Reverse Osmosis membrane which is the key product in Desalination plants all over the world. M-fine is a compact designed membrane bioreactor module for fitting into small capacity and footprint and also easy to handle for operation and maintenance.
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  • Domestic and International Trends Regarding Climate Change and GX League Initiatives
    Keita Takeshita
    Article type: other
    2023 Volume 77 Issue 12 Pages 1072-1078
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1072
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    The GX League was officially launched in April 2023. The GX League is conceived in 2022 and has been working for one year as a preparatory period. In the first phase of the three-year period from April 2023, estimates will be made based on the emissions emitted by each participating company, and emissions trading will be introduced on a full-scale basis from fiscal 2026.
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  • Carbon Footprint and Corporate Emissions Accounting
    Wataru Kawamura
    Article type: other
    2023 Volume 77 Issue 12 Pages 1079-1085
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1079
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    The term “Carbon Footprint” is often referred to as “CFP” in Japan, which is an abbreviation of “Carbon Footprint of Products,” and it means the amount of carbon dioxide emissions over the lifetime （life cycle） of a product or a certain process.
    The main purpose of calculating CFP is to quantify the greenhouse gas emissions of products, and it allows companies to understand the impact of their products and identify where and how they can reduce their environmental impact. Moreover, it also helps customers understand their environmental impact associated with products they purchase.
    Nowadays, many companies and societies are required to decarbonize, and companies are increasingly expected to calculate their CFP/organizational emissions to provide information necessary to select low emission products and to meet the needs of their customers and stakeholders.
    In Japan, a program for CFP calculation and labeling have been in place since 2002, and in 2022, the Ministry of Economy, Trade and Industry （METI） gathered a study group to further expand CFP calculation among Japanese companies. The need for CFP calculation is expected to increase in the future, and rules and mechanisms are being developed around the world.
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  • Noise and Odor Countermeasures in Manufacturing Factories
    Shingo Seki
    Article type: other
    2023 Volume 77 Issue 12 Pages 1086-1094
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1086
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    Manufacturing factories, including the pulp and paper industry, have a large number of production facilities, and there are various noise and odor sources in the factories. The following are expected to be the departments that are actually facing these issues.
    ⑴　Environmental management department in charge of the environment of the entire plant
    ⑵　Management department of factory equipment that actually reduces noise and odor （engineering department）
    This paper summarizes the technical contents that factory workers in charge of the environment or equipment should know about when considering countermeasures for these problems, focusing on the field of noise. When actually promoting countermeasures, we hope that the contents of this paper will be useful for considering effective and economical measures.
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Topics & Information
  • Drainage Load and Odor Reduction Measures Using the AQUAS CLEANJET System
    Teppei Tomokuni
    Article type: other
    2023 Volume 77 Issue 12 Pages 1095-1102
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1095
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    Nippon paper Ashikaga Mill, Ashikaga is located at about 70 km north from the Tokyo metropolitan area and about 50 km south-west from Utsunomiya city,Tochigi prefecture. The mill owns the PM1 that produces core paper, pasting paper board and water-resistant paper board, and the PM3 producing conventional corrugated medium and heavy-duty water-resistant corrugated medium.
    In terms of factory location, the site is characterized by the presence of municipal roads and rivers crossing within the premises. Furthermore, residential areas and farmland adjoin the factory site, making it an environment where careful consideration for the surrounding conditions is required.
    The comprehensive drainage is discharged into the old Fukurogawa, a tributary of the Watarase River, and the control indicators are pH, BOD, and SS. In March 2021, the drainage standards in Tochigi Prefecture were revised, placing a greater emphasis on water quality improvement. In response, our factory implemented measures to enhance the drainage facilities and reduce the drainage load from our production processes.
    In this article, we will introduce a case study focusing on the drainage load reduction measures using the AQUAS CLEANJET System, chosen from among various initiatives.
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  • A Report on Revision of the Japanese Standard（JIS）P 8149 Paper and board― Determination of opacity（paper backing）― Diffuse reflectance method
    Pulp and Paper Test Standards Committee
    Article type: other
    2023 Volume 77 Issue 12 Pages 1103-1105
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1103
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    The JIS P 8149：2023 is published on 20th October 2023 by the Minister of Economy, Trade and Industry, which has been technically revised. This revised JIS P 8149 standard has been harmonized with ISO 2471：2008, which is the international standard. The main changes are as follows.
    1)　A UV adjustment to conform to the CIE illuminant C is required if fluorescent whitening agents are present in the paper or board.
    2)　The table of weighting functions for the instruments that have bandpass correction is added.
    3)　The value is read and recorded to the nearest 0.01% unit instead of 0.05% unit.
    4)　Precision for measurement methods is added since recent international standards emphasis on adding precision.
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  • A Report on the 63rd National Conference of the Pulp and Paper Industry on Safety and Health
    Hidenori Maeda
    Article type: meeting-report
    2023 Volume 77 Issue 12 Pages 1106-1110
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1106
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    Japan Paper Association （JPA） held the 63rd National Conference of the Pulp and Paper Industry on Safety and Health in person at Yokohama city for the first time since 2019 on September 2023. The conference had 290 participants from member companies and cooperating companies.
    The conference took place over two days, and the program of the first day include plenary session, special lecture and social gathering. In the second day, six breakout sessions were held, and each session had three presentations of case studies and group discussion. In the group discussion, each group （consisting of seven or eight participants） discussed preset theme and set action targets. At the end of the group discussion, each group reported on the discussion contents and action targets set in the discussion, in order to share them among the participants in breakout session.
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Introduction of Research Laboratories (154)
Research Report (Original Paper)
  • Novel Analysis of Recycled Pulp-Containing Paper, Including Fluorescent Whitening Agent:
    Part 2　A Comparison of Quantitative Measures of Wastepaper Pulp Content in Recycled Paper Prepared from Softwood Bleached Kraft Pulp
    Tatsuhiko Sakawa, Atsushi Narita, Susumu Kawanobe, Ryota Kose, Hailan ...
    Article type: research-article
    2023 Volume 77 Issue 12 Pages 1115-1127
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1115
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    To build a society that achieves sustainable development with less environmental impact, the recovery rate of wastepaper has increased by reducing paper waste and protecting forest resources；the utilization rate of wastepaper as a raw material for papermaking has increased accordingly. As the recycled paper is widely used as an environmentally friendly product, estimating and evaluating the wastepaper pulp content in paper and paper products is necessary. However, discriminating between virgin pulp fibers and wastepaper pulp fibers in paper and paper products is challenging because there is a wide range of wastepaper types. Moreover, the pulp fibers are physically or chemically altered during the wastepaper process.
    In this paper, we prepared recycled-paper model handsheets from softwood bleached kraft pulp （SBKP） with an internal additive of fluorescent whitening agent （FWA） and compared three test methods for estimating the blending rate of wastepaper pulp. In addition to estimating the blending rate of wastepaper pulp from the image analysis of paper samples using confocal laser scanning microscopy （CLSM）, the blending rate of wastepaper pulp from pulp fiber was examined through fluorescence microscopy （FM）；evaluation by the visual method and image analysis was also conducted.
    The mean luminance （mean fluorescence intensity） of paper samples calculated from the images obtained by the CLSM method showed a high correlation with the wastepaper pulp content regardless of changes in the amount of FWA added or the type of bleached pulp. Another advantage of the CLSM method is that it enables the estimation and evaluation of wastepaper pulp content without the need to defibrate the recycled paper sample.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    Article type: research-article
    2023 Volume 77 Issue 12 Pages 1128-1139
    Published: 2023
    Released on J-STAGE: January 01, 2024
    DOIhttps://doi.org/10.2524/jtappij.77.1128
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    [in Japanese]
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Essay on Intellectual Property
Coffee break
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