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Volume 40, Issue 2
Displaying 1-16 of 16 articles from this issue
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Advices from Scientists in TsukubaTetsuzo Kawamoto, Joei Ikeda, Masahiko Onda, Shoei Fujishige, Kazuhiko ...1986 Volume 40 Issue 2 Pages 113-125
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (5429K) -
Hisakazu Masuda1986 Volume 40 Issue 2 Pages 126-129
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSHigy-efficiency air stripping system was developed and installed at Kasugai Mill of Oji Paper Co., Ltd. in 1984 in order to reduce the odor-level of waste-water. By replacing the original steam stripping system with new one, we have saved 3.9 tons/hour of low-pressure steam and improved the efficiency of waste-water treatment.View full abstractDownload PDF (563K) -
Hiromasa Amano1986 Volume 40 Issue 2 Pages 130-132
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDeveloped by our know how, the system enables one to recover wast heat from Smelt Dissolver with safety and high efficiency. The system is used to produce hot water (at 70°C), which is employed as a heat source in pulp bleaching process.
Effect (energy-saver)
Amount of Heat Recovered; 1.6×106 kcal/Hr·System
Amount of Fuel Conserved; 170l-oil/Hr·SystemView full abstractDownload PDF (523K) -
Kazuo Murabayashi1986 Volume 40 Issue 2 Pages 133-137
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe stoker furnace plant has been installed at Fuji mill for burning the waste water sludge and other combustibility wastes generated.
This plant consists of a Mulutistepped pushing grate, waste heat boiler in a body, combined with rotary dryer, air pollution control equipment, and crusher, etc.
It has been on stream from Dec. 1983, and now under satisfactory conditions. As the result, we have achieved much energy saving and stabilization of double layers incineration.View full abstractDownload PDF (829K) -
Motokazu Kamei, Yoshihito Okada, Yasuji Kazumori, Akira Honma1986 Volume 40 Issue 2 Pages 138-143
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe deinking property of waste ofiset newspaper becomes worse rapidly in high temperature storage such as in summer, while thai of waste letterpress newspaper does not at all.
But the storage at low temperature below 5 C or at above 30% moisture content for waste offset newspaper restrains the deterioration of the deinking property.
The high alkali method, that means high concentration of NaOH is added in a retention tower before flotatoin, or the kneader method, which is done at the inlet of H2O2, bleach, could improve to some extent the deinking property of waste offset newspaper which had been worse.View full abstractDownload PDF (1098K) -
Haruo Tsukamoto, Osamu Machida, Michihiro Nakura1986 Volume 40 Issue 2 Pages 144-147
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSFundamental and bench scale experiment of our association has been finished. Pilot plant test is now under running and data have been accumulated and analyzed.
The results of fundamental and bench scale test are summerized as follows.
(1) It was confirmed that the development target which is shown below could be accomplished.
Reaction Temperature 70-80°C
Reaction Time 0.5-1 hr
Causticization over 90%
white liquor concentration 250g/l (as Na2O)
(2) Causticization and behavior of non process elements were investigated and data for scaleup were accumulated by carrying out the recycled test of ferric oxide.
(3) Size distribution of the particle before and after hydrolysis of Na2Fe204 was measured. It was found out that the particle didn't get finer.
(4) Washing effeciency of recovered ferric oxide after hydrolysis was checked.View full abstractDownload PDF (944K) -
Akio Okagawa1986 Volume 40 Issue 2 Pages 148-152
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSPitch troubles in pulp and paper mills have been a continuous problems over the many years. Introduction of kraft pulping process made pitch troubles less frequent compared with sulfite pulping. However recent trends in diversity in raw material supply and needs for higher productivity require more reliable control over the pitch-related problems.
Advancement of many analytical tools, such as high pressure liquid chromatography, nuclear magnetic resonance spectroscopy etc., have given us an opportunity to reveal complete picture of chemical components of pitch. The analysis suggested that major component of deposited pitch was high molenlar weight compound originated from some of wood extractives.
Physico-chemical approach to the behavior of pitch suspension may also be helpful for the understanding of pitch deposition mechanism. This paper describes some of recent developments in pitch analysis and deposition mechanism.View full abstractDownload PDF (788K) -
Masaru Shibata1986 Volume 40 Issue 2 Pages 153-159
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSAn outline of main technologies in general biotechnology and their applied fields are reviewed in this paper, with particular emphasis on the plant breeding.
Key technologies in plant sectors are composed of tissue culture such as shoot tip culture, cell fusion, and gene manipulation such as recombinant DNA, in which Ti-plasmid method seems to be most efficient and practical in the present.
Furthermore, business chance for plant biotechnology is discussed, mainly in respect to seed business and secondary metabolized substances produced by mass tissue culture.View full abstractDownload PDF (966K) -
Tooru Shimizu, Hiroshi Sugawara, Kiyoshi Wada1986 Volume 40 Issue 2 Pages 160-165
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSAiming at development of high consistency papermaking technology, optical measurement was made on the extent of dispersion and on the consistency fluctuation in the pulp suspension flowing in a closed channel provided with some turbulence generating elements. At the same time, a Laser Doppler Anemometer (LDA) measured the relationship between the dispersion and the flow characteristics.
A headbox incorporating prospective elements was trially made, and papermaking was conducted in combination with a twin wire test former. The paper made in this manner at 2.3% headbox consistency shows sheet formation index close to the commercially available paper.
A pilot plant started operation for proving high consistency papermaking technology, and for survey of overall paper quality.View full abstractDownload PDF (1450K) -
Noriaki Mohori1986 Volume 40 Issue 2 Pages 166-169
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThe Uno Run Blow Box was installed in N-5M/C of Oji Paper Co. Tomakomai mill in 1983.The purposes of installation were improvement of sheet runnability and decrease of draw at the single felting section.
This paper indicates the progress of installation and results of using the Blow Box.View full abstractDownload PDF (577K) -
Shigeyoshi Osaki1986 Volume 40 Issue 2 Pages 170-175
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSFor a check of the quality of fiber sheets it is essentially to determine the orientation of molecules. The molecular orientation of fiber sheets is usually investigated by such techniques as X-ray diffraction, birefringence, mechanical breaking strength, Young's modulus, and ultrasonic velocity methods. These methods, however, require a long time for the determination of orientation.
We have developed a New Type of Apparatus Microwave Molecular Orientation Analyzer for determining the molecular orientation of fiber sheets in such a short time as ca. 60sec and for determining complex dielectric constant at microwave frequencies. The new type of apparatus by use of microwaves was applied for determining molecular orientation of the paper sheets and plastic films. The results obtained by the present microwave method are supported by those from the mechanical breakling strength and infrared mothods. This new method has characteristics of non-contact, non-destruction and quick measurements, and lends itself most readily to the measurements of a number of samples.View full abstractDownload PDF (1128K) -
Kunio Osada1986 Volume 40 Issue 2 Pages 176-179
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDuoformer-H has been installed on existing fourdrinier of PM2 newsprint machine at Shiraoi Mill Daishowa Paper Mfg. Co., Ltd.
It has been running successfully after start up in November 1983.
The report presents data on the operation of the machine and on the technological properties of the paper produced. Comparisons show many advantages of the Duoformer-H over the Fourdrinier.View full abstractDownload PDF (1060K) -
Toshio Hoshino1986 Volume 40 Issue 2 Pages 180-186
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSThis paper describes color graphic production and transmission techniques which can create electronically color graphics consisting of characters and other illustrations in a relatively short time. A run lenghth encoding technique is employed to minimize the processing time and the system cost. According to the techniques, a high-quality color graphic can be produced within about one tenth the time required to produce a similar color graphic using the conventional method. Furthermore, the storage reuquirement of this system is about one fifty-eighth the storage space required by the PCM encoding method.View full abstractDownload PDF (1974K) -
Toshio Hirai1986 Volume 40 Issue 2 Pages 187-193
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (1363K) -
Teiji Kakinuma1986 Volume 40 Issue 2 Pages 194-201
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSC. T. S stands for Cold Typesetting System or Computerized Typesetting System.
However, C. T. S are currently used for the latter terms and necessarily inuolves equipments of full-pagenation make up.
C. T. S provides us a great deal of effects. The United States overtook Japan in installation and development of C. T. S.
Neverthless the realization of C. T. S with full pagenation are very few yet against expection of ANPA (American Newspaper Publishers Association).
In the 1970s a group of forty newspaper companies and machine suppliers aimed at the development of C.T.S, but finally resulted in resignation after seven years.
Because they thought it is too eary for threw to go forward due to insufficient of fundamental technologies such as follows.(Degital input of pictures and graphics, degital output, throughput of computer, softwera of page layout or display and so on.).
However, needs of full pagenation for newspaper production are so important problems, from 1981 the installations of C. T. S in newspaper companies are increasing.
In Japan, computerization for all process of newspaper production since 1980 are NELSON (New Editing an Layout System of Newspaper) and ANNECS (Automated Nikkei Newspaper Editing and Composing System).
NELSON system may be first fullpagenation system. Fullpagnation systems on newspaper production is already realized and recently fullpagenation system on printing product is reported. This paper describes FUJITSU*s approach to computerized typesetting system on newspaper production and printing production.View full abstractDownload PDF (2301K) -
1986 Volume 40 Issue 2 Pages 204
Published: February 01, 1986
Released on J-STAGE: October 27, 2010
JOURNAL FREE ACCESSDownload PDF (139K)
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