JAPAN TAPPI JOURNAL
Online ISSN : 1881-1000
Print ISSN : 0022-815X
ISSN-L : 0022-815X
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Volume 54, Issue 1
Displaying 1-24 of 24 articles from this issue
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  • New Year's Speech
    Yasuhiko Kurosawa
    2000 Volume 54 Issue 1 Pages 1-3
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.1
    JOURNAL FREE ACCESS
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  • General Review of JAPAN TAPPI 1999 Annual Meeting at Morioka · Hachinohe
    Planning Subcvmminee JAPAN TAPPI
    2000 Volume 54 Issue 1 Pages 5-9
    Published: January 01, 2000
    Released on J-STAGE: February 22, 2010
    DOIhttps://doi.org/10.2524/jtappij.54.5
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  • Keynote Address
    Yasuhiko Kurosawa
    2000 Volume 54 Issue 1 Pages 10-16
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.10
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  • Lecture by Winner of 1998 JAPAN TAPPI Prize
    Yoshitatsu Mori, Kiroshi Kitano
    2000 Volume 54 Issue 1 Pages 20-21
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.20
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    2000 Volume 54 Issue 1 Pages 22-24
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.22
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  • A Visit to Hachinohe Mill-Mitsubishi Paper Mills Limited-
    [in Japanese]
    2000 Volume 54 Issue 1 Pages 25-27
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.25
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  • An Effective Method for Waste Paper Treatment Using a New Kneading Action
    TAIZEN Washer has a Concentration System to Extract Fiber within the White Water and Awarded the Sasaki Prize in 1999 for this Innovative Technology
    Hideaki Matsukura
    2000 Volume 54 Issue 1 Pages 31-38
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.31
    JOURNAL FREE ACCESS
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    The waste paper treatment technology that the TAIZEN Washer offers, is applicable to process a large quantity of waste paper caused when paper products are diversified and from various printing technoligies. The washer uses a de-concentration system in a drum washer where a continuous flow dilutes and drains the contaminants on a simultaneous basis. It has aperforated drum with an internal metal netting to drain the waste water morefrequently and not to solidify pulp slurry. The simplified design of this machinefacilitates maintenance, and widely used. Also it gives high brightness and removesash well, being ideal to recycle the waste paper having a high ratio of fillercompound. In addition, higher yield and greater energy savings and lower wasteconsumption can be gained. Together with this washer, another our “New TAIZEN” having a 3-shift kneadingsystem for pre-processing of de-inking and removing ash, is also recommendable.
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  • JW-II Roll Wrapping Machine
    Fully Automatic, Large Wrapping Capacity and Processing of Random Various Kinds of Rolls
    Takeshi Ogasawara
    2000 Volume 54 Issue 1 Pages 39-44
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.39
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    In the past, one winder and one wrapping machine used to be arranged to process paper produced by one paper machine. In recent years, however, control of production data by computer has made great progress, and now we are in an environment where production data of wound rolls as finished products can be rapidly processed online.
    Therefore. we have been able to develop a wrapping machine with a large processing capacity, that can automatically process various types of wound rolls produced by more than one paper machine to save labor, space and energy required by wrapping at a mill.
    Our wrapping machine consists of equipment such as bar code reader, printer, wrapping machine, marking device and labelling device. Even a non skilled worker will be able to operate our wrapping machine in a short time because each equipment is reliable and can stand continuous operation for a long time, and also because of features such as complete interlocking and easy input setting, changing and monitoring by touch panel, based on our wide experience and achievements.
    Through the use of our wrapping machine, complete wrapping of wound products and display of contents of finished products can be performed.
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  • Recycling of Forests : Overseas Forest Plantation Projects of Oji Paper Co., Ltd.
    Kenji Kanda
    2000 Volume 54 Issue 1 Pages 45-48
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.45
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    This article illustrates the reasons for Japanese Pulp and Paper industry to develop overseas forest plantations. While the vast majority of pulp wood used in paper making originates from saw mill residues and thinning, the industry has made a commitment to expand overseas forest plantations in order to secure wood supplies and to contribute to the world's environment. Japanese Pulp and Paper companies together plan to establish 550, 000 ha of forest plantations, both inside and outside Japan by year 2010. As for Oji Paper Co., Ltd. it has a goal to establish 200, 000 ha of overseas forest plantations by 2010. Overseas forest plantation projects not only create jobs, but help the area in environmental improvements such as reduced salinity and reduced wind erosions. In addition. cultural exchanges between Japanese expatriates and locals take place. Recently, carbon sequestration by forests is drawing more attention toward forest plantations. While it is not clear how carbon sequestration is accounted and valued. Oji plans to help other companies which plan to develop overseas forest plantation projects. Overall, forest plantations mean recycling of wood. reducing the use of fossil energy while lessening the pressure to clear natural forests.
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  • How We Use Recycled Fiber in Kitakami Paper Co.
    Ken Otsuka
    2000 Volume 54 Issue 1 Pages 49-51
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.49
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    Our company locates in the northern part of the main island. and produces linerboard (320 tons day), newsprint (45 tons day) and deodorant. As it is a small mill, we have been intending to he environmentally friendly and promoting fiber recycling.
    Now. our linerboard is completely made of recycled fibers. As for newsprint, we use MCP (recycled fiber from milk carton waste) in replacement to NBKP, and we have been operating with 70% recycled fiber for these 10 years.
    We understand that an efficient recycling system is indispensable to us, and have developed NPR 100 System which enable to use old newsprint more efficiently.
    We are also working on a project. supported by the government, of using office waste paper more effectively which is mostly incinerated at the moment.
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  • New Process Producing Highly Concentrated Polysulfide Liquor
    Yasunori Nanri, Keigo Watanabe, Masahiro Shimizu, Tatsuya Andoh, Tetsu ...
    2000 Volume 54 Issue 1 Pages 52-57
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.52
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    A new electrolytic oxidation process to produce highly concentrated polysulfide (PS) liquor front the white liquor (WL) has been developed. A specially-designed electrolytic cell makes the system suitable for actual mill operation. The WL, is oxidized to produce PS liquor in the anode compartment. while pure sodium hydroxide is formed in the cathode compartment simultaneously. Since the undesirable thiosulfate formation is easy to control in the electrochemical process, it was possible to produce highly concentrated PS liquor with a good current efficiency. Consequently this process achieves to concentrate sodium sulfide in WL, and produce highly concentrated PS simultaneously, while the sulfur balance in the Kraft pulping process can be maintained. PS with SAQR pulping of hardwoods was evaluated using the oxidized liquor produced by the bench scale cell with the laboratory digester. Then, the large increases of pulp yields and large reductions of kappa number were observed, and modified cooking intensified these effects. A capable case of system closure for the bleached kraft pulp production was also proposed.
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  • The Experience of New Pulping Plant Operation
    Ryuuichi Suzumi
    2000 Volume 54 Issue 1 Pages 58-63
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.58
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    Hokuetsu Niigata Mill started up the new coated paper machine (PM 8) in July 1998. To meet the needs of increasing pulp production, the new pulping plant (H line) started up earlier than PM 8. This plant introduced ECF bleaching with D 0-Eo-DnD sequence.
    This report describes the outline and operating experiences of this pulping plant.
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  • Operating Experience of Our New Recausticizing System
    Makoto Horiguchi
    2000 Volume 54 Issue 1 Pages 64-69
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.64
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    In May 1999, new recausticizing system and Lime kiln started at Kishu Paper Co., Ltd Kishu Mill.
    This recausticizing system consists of mainly PD-filter for white liquor, Lime mud filter and Lime reburning kiln with flash dryer.
    Now we report the operating experience and some troubles of new recausticizing system.
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  • Operating Experience of YONAGO N-1 Paper Machine and N-1 Coater
    Junichi Tomita
    2000 Volume 54 Issue 1 Pages 70-74
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.70
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    N-1 Paper machine and N-1 Comer at YONAGO mill. OJI Paper, has been in operation since September 1997. The new line has the capacity of 700 tpd of woodfree coated paper. The paper machine and the coater incorporated state of the art new technologies, such as horizontal gap former, double shoe press in the paper machine, and Janus calender in the coater, to achieve high productivity and good paper quality. This article introduces the latest operating experience of the paper machine and the coater, focusing on the new technology.
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  • The Operational Experience of The SymFlo-D Headbox
    Hiroshi Ozatea
    2000 Volume 54 Issue 1 Pages 75-82
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.75
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    At the Shiraoi Mill, we started up the No. 8 paper machine in 1968. Since then it has been producing diazo base, business and printing paper. It produces an average of 230 tons of paper per day.
    It's our first priority to maintain and improve the quality of paper. In 1998 we remodeled the No. 8 paper machine in order to improve the quality of product. The existing headbox was replaced with the Sym Flo-D headbox (Dilution Headbox), which has fine control actuators, for the purpose of improving BD profile and fiber orientation of cross machine direction.
    The following report describes the operational experience of the Sym Flo-D headbox over the course of a year.
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  • Operational Experience of PM 7
    Chikashi Kawaragi
    2000 Volume 54 Issue 1 Pages 83-88
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.83
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    Mitsubishi Hachinohe Mill with seven paper machines including two on-machine coater is capable for producing 70, 000 ton of papers per month. Among seven paper machines. paper machine No. 7 (PM 7), which has been operated since 1997, is the latest paper machine in Mitsubishi Paper Mills Limited and produces approximately 400 ton of fine paper and coat base per day.
    PM 7 has been designed to get high productivity and good quality of the products by introducing the latest paper making technology and devices at that time. The introduction of PM 7 is a technological step for us to a wider paper machine than PM 7 in future.
    In this report we describe an outline of equipment on PM 7 and its operational experiences. Major items reported here are as follows : (1) Module jet Headbox which makes optimum base weight profile by controlling the stock consistency on the cross machine direction, : (2) Transfer Felt System which actualizes the smooth running of the wet web with high speed in the press section, (3) Shoe-Press ENP-C which introduces high consistency at the outlet of the press section, (4) Symsizer available for heavier coated weight than other size press coater, (5) Web Threading Device without rope in pre dryer, (6) Soft Nip Calender, and (7) Opti-Reel with center drive type.
    We have been remarkably successful in startup of PM 7 heretofore. However we still have a few operative problems which we have to settle. Gaining our customer's perfect satisfaction, we keep on making an effort to improve quality of products.
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  • Operating Experience of N 2 PM
    Shinya Monma
    2000 Volume 54 Issue 1 Pages 89-93
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.89
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    N 2 PM for newsprint was started up in Feb., 1998, at Yatsushiro mill. This machine is one of the wide and high speed machines in the world. The wire width is 9, 050 mm, and the operating speed is max. 1, 600 mpm. The plan production capacity of newsprint is 700 tpd. Our goal of this new machine is that the Yastushiro mill can win the competition in the world by restructuring of two old machine-lines and cost down, and can continuously supply the best quality newsprint especially to the user of Kyushu area, and N 2 PM can be the most efficient machine in the world. This machine has a lot of the newest equipments. using the highest technologies, in Japan or in the world. For example, those are the first CFD former in Japan as newsprint machine former, the shoe presses at first and third press introduced for the first time in the world. the top and single deck dryer configuration at pre-dryer and after dryer. the jumbo rolls and spools handling system between reel and rewinder, and so on.
    After start up. N 2 PM continues to be operated efficiently, improving some problems.
    This paper mentions about the N 2 PM outlines and operating experience from start-up.
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  • The Application of New Forming Concept at Linerboard Machine
    Sigent Ishida
    2000 Volume 54 Issue 1 Pages 94-98
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.94
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    Recently, we have completed the modernization of No. 9 paper machine. which was originally started in 1964. was remodeled in 1988 for quality improvement. Bel Bond former. This paper machine is mainly producing linerboard and produces 780 tpd. The existing forming unit (CIVB) was replaced with new concept. serrated shoe. We aimed at improving sheet formation and ply bonding, reducing rate of vergin fiber. Then we achieved our aim according to expection and are continuing operation favorably. We report on the operational experience since January in 1999.
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  • Application of Electron Beam Curing Technology for Paper Products
    Takaharu Miura
    2000 Volume 54 Issue 1 Pages 99-103
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.99
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    The electron beam (EB) curing technology has rapidly advanced in recent years. However there were few examples applying this technology to paper products. One reason comes from the high price of EB equipment and the other comes from the difficulty of controlling the irradiation which give damages to the paper. In spite of these problems, the EB cured coating layer shows remarkable features, such as solvent resistance. water resistance, heat-resistance and high smoothness using the drum casting technique. Concentrating on application of this technology to paper, we have already developed some products. For example, paper for printings (Super Mirror PN) and for white boards (Super Mirror WB) have been manufactured.
    In this presentation, we are going to introduce this EB curing technique and the products.
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  • Operating Experience of No. 1 Coater Machine
    Shigemi Miyawaki
    2000 Volume 54 Issue 1 Pages 104-108
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.104
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    The No. 1 Coater Machine of Nohmachi Mill was started up in July 1998 and has been operating successfully. We adopted blade on blade double coating process on this coater tocorrespond to various customer demands and to improve quality with minimum production cost. This report is discribed on the operating experience of No. 1 Coater Machine from its start to now.
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  • The Experience of High Temperature and Pressure Recovery Boiler Operation
    Kcnji Ohionio
    2000 Volume 54 Issue 1 Pages 109-114
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.109
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    Nippon Paper Industries Co.. Ltd. Iwakuni Mill started up the high temperature and pressure recovery boiler having a reaction furnace of KP black liquor of 2700 T D capacity as dry solid basis in 1997. This boiler is the largest recoveryboiler in the world generating high temperature and pressure steam (10.3 MPa. 505 °C).
    This paper presents operation experience and running data after commercial operations of high temperature and pressure recovery boiler.
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  • [title in Japanese]
    [in Japanese]
    2000 Volume 54 Issue 1 Pages 115
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.115
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    2000 Volume 54 Issue 1 Pages 116
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.116
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    2000 Volume 54 Issue 1 Pages 117-118
    Published: January 01, 2000
    Released on J-STAGE: November 19, 2009
    DOIhttps://doi.org/10.2524/jtappij.54.117
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