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Volume 36, Issue 1
Displaying 1-37 of 37 articles from this issue
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Masayoshi Ninomiya1982 Volume 36 Issue 1 Pages 1-2
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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[in Japanese]1982 Volume 36 Issue 1 Pages 3-8
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Masayoshi Ninomiya1982 Volume 36 Issue 1 Pages 9-12
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Takeo Ueno1982 Volume 36 Issue 1 Pages 15
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Raysabro Oye1982 Volume 36 Issue 1 Pages 16
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Seiichi Ishizaka1982 Volume 36 Issue 1 Pages 17-27
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Lothar Göttsching1982 Volume 36 Issue 1 Pages 28-39
Published: January 01, 1982
Released on J-STAGE: April 23, 2010
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[in Japanese]1982 Volume 36 Issue 1 Pages 40-42
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Hiroshi Yamashita1982 Volume 36 Issue 1 Pages 43-50
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSThe recent development of a high-accurate optical sensor has enabled the use of an equipment to control the amount of chlorine or other bleaching chemicals by measuring the brightness of pulp after addition of chlorine or other chemicals. Cormec is a representative equipment.
In 1980 we introduced Cormecs for chlorine stage for LBKP, hypo stage for NSBKP and hydrogen peroxide stage for RGP and TMP. Despite the initial problems on the part of the process line and partly with the Cormec hardwares as well, which were solved one by one, all the Cormecs installed are now in operation with secure performance of chemicals control having much effect on the stabilized brightness and cost reduction.View full abstractDownload PDF (1137K) -
Åke Backlund, Kjell Anthonisen1982 Volume 36 Issue 1 Pages 51-58
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSLower energy and investment cost for the Medium Consistency (MC) O2 system than for conventional High Consistency systems was the motivation for the development of the described MCO2 system. After development work in a pilot plant, the described commercial MC system wasstarted up in June 1980, reducing the Kappa No. a part of the production from a continuous Hi-Heat digester from 45 to 25.
The system incorporates, outside the MC oxygen mixer and hydraulic reactor, also a pressure diffuser for washing and a splitter for diverting of the pulp from the digester.
The data shows that the pulp quality for the HC and MC systems are comparable. With lower energy and investment costs and comparable chemical consumption, the MC system, being more flexible for installation in old pulp lines, should make O2 delignification more attractive than before.View full abstractDownload PDF (768K) -
Tadashi Iwamoto1982 Volume 36 Issue 1 Pages 59-64
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSTomakomai mill of Oji paper Co., Ltd. first produced the deinking pulp for newsprint in the spring of 1975. The new plant started up in the July of 1980 is equiped with the Fibreflow drum at its front end for the purpose of using unsorted wastepaper and saving energy consump-tion. After resolving some troubles at the beginning, we have been operating them successfully.
The properties of the Fibreflow are as follows.
1) Defibering effect measured by 10 cut slot screen is much the same as that of conventional hydrapulper with turboseparator. (The screen reject is about 1%.)
2) The energy consumption for defibering waste newspaper is about 20 kWh/t of pulp produced.
3) The screening efficiency is better than that of other our pulpers.
The results are summarized ae follows.
1) It has become possible to make use of the unsorted wastepaper including the magazines with backs.
2) The overall power consumption was dropped by 15% compared with that of our old plant because of a simpler screening system.
3) The operating efficiency was improved on account of decreasing troubles by the contaminants.View full abstractDownload PDF (7237K) -
[in Japanese]1982 Volume 36 Issue 1 Pages 65-68
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Mikio Katagiri1982 Volume 36 Issue 1 Pages 69-77
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSRecenty, paper and film converters have begun to use resin grade with special characteristic in extrusion coating process instead of general purpose grade, to improve performance of their products.
This article is written about some recent aspect on new grades of polymers for extrusion Coating. They are low odor LDPE, LDPE for extrusion coating, and new Na type Ionomer having good hot-tack.
And also new extrudable resin with peel-open heat-sealability is introduced and belief comment on extruding LLDPE is described.View full abstractDownload PDF (1101K) -
Kazuhisa Yamazaki1982 Volume 36 Issue 1 Pages 78-81
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSFollowing the introduction for the course of history, in which UV curing/drying system hasbeen accepted in the printing industry, the present situation of the developments of equipmentand ink for the system is described, together with the effects on printing work, economy of energy and pollution abatement. Future improvements and market trends are also suggested.View full abstractDownload PDF (2456K) -
Shoichi Tamura1982 Volume 36 Issue 1 Pages 82-84
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESS1. As regards containers for confectionery, both a function to protect the contents and a design to make an appeal to consumers are important.
2. Carton container has occupied over 80% of the total package for milk, and it is extending a share rapidly for Japanese sake, vinegar, soy, sauce or juice.
3. According to a change of the life-style, portion package has become used more and more as personal-use food. The growth rate is said to amount 50% per year.
4. Multiple package is growing significantly in the fields of beer, juice, yoghurt and sake packed in bottle, can, paper cup or plastic cup.
5. In Japan, paper occupies 50% of the total packaging material and 50% of the total production of paper and board are used in the field of packaging. As packaging industry is predicted to grow at a rate of 20% per year in future, the amount of paper consumption is also expected to grow together.View full abstractDownload PDF (501K) -
Kohichi Nakamura1982 Volume 36 Issue 1 Pages 85-96
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSOn the processing of paper, such as calendering, coating, laminating, etc., the surface and the physical properties of paper become important subject.
Relation of the surface structure and the processing was reviewed from the recent studies. Recent developed theoritical works of blade coating were also discussed in this review.View full abstractDownload PDF (1655K) -
[in Japanese]1982 Volume 36 Issue 1 Pages 97-99
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Makoto Usuda1982 Volume 36 Issue 1 Pages 100-108
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSThis paper deals the significance of transferring papermaking system from the acidic to the neutral or alkali one. Permanence of paper has recently become an important problem for the librarians and archivists because of finding that the acidic paper is degraded only within fifty years since its production.
For preserving the records, alkaline calcium carbonate-filled paper has been recognized to be an excellent material. Neutral or alkaline paper can be obtained with neutral size in conjunction with calcium carbonate. Many neutral sizes were developed during 1950's, however, among them, alkyl ketenedimer and alkenyl succinic anhydride are only used commercially. In addition to them, isopropenyl stearate is also introduced in this paper, and a new method for preparing neutral paper, that is, chemically modified for preparing neutral paper, that is, chemiclly modified fiber as a novel sizing material is described. The difficulties in neutral papermaking process are alsso pointed out.View full abstractDownload PDF (1034K) -
Chuichi Honma1982 Volume 36 Issue 1 Pages 109-111
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSCompact and portable infrared imaging systems have been found useful for determining the cause of cross-machine moisture profile problems on paper machines.View full abstractDownload PDF (296K) -
Kiyoshi Wada1982 Volume 36 Issue 1 Pages 112-116
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSA cylindrical dryer having axial internal grooves and taper has shown remarkable improve-ment on the condensate heat transfer coefficient due to effective use of centrigugal force component.
The improvement increases with the speed and reaches 3.9 times of that of conventional flat dryer at 650 m/min.
The overall heat transfer coefficient, however, is improved 25% at 600 m/min due to the combined effects of shell itself and shell-web contact heat transfer coefficients which prevent flow of heat.
Surface temperature profile is within ±23°C except where condensate ponds are formed.
This profile is similar to that of conventional dryer.View full abstractDownload PDF (2723K) -
David L. Nelson1982 Volume 36 Issue 1 Pages 117-126
Published: January 01, 1982
Released on J-STAGE: April 23, 2010
JOURNAL FREE ACCESSIn the paper industry systems engineering normally implies the application of computer-based measurement, control and communications systems in a highly integrated manner to control a complex manufacturing process. The classic objectives of systems engineering are to achieve overall optimization of raw materials utilization, energy consumption, labor efficiency and productivity.
Theoretical and practical knowledge are both required in the systems engineering discipline for analyzing production processes and optimizing improvements.
However, the key tool, yet to be fully utilized, are modern computer-based measurement, data acquisition and control systems with advanced capabilities introduced to the market in the past several years. If properly designed and engineered, these systems provide a highly visible window into the process.
Modern computer technology can aid the systems engineer to improve process control through the following benefits :
-Powerful tools to analyze production processes.
-Automatic control of critical variables.
-Adaptive control of critical variables in lieu of manual tuning of control loops.View full abstractDownload PDF (3568K) -
[in Japanese]1982 Volume 36 Issue 1 Pages 127-129
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Toshihiro Fukaya1982 Volume 36 Issue 1 Pages 130-136
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSWith the Thermo-Compressor is generated the intermediate pressure steam supply while the low pressure steam is entrained by the high pressure steam.
This system is applied to batch or continuous digester to make effective use of the low pressure steam to an extent as much as possible.
Adoption of the Thermo-Compressor enables an effective use of low pressure steam, while high pressure steam is used in the conventional system to control steam supply covering an entire pressure range of low to high pressure steam.
The more low pressure steam is used for the digester, the more power is generated throughView full abstractDownload PDF (890K) -
Kuniaki Fujita1982 Volume 36 Issue 1 Pages 137-141
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSIt makes a third volume of fresh water inclease the temperature of 18 °C by heat evchanger with waste water at KP mill.
This saves 3, 000 kl of fuel oil in a year.View full abstractDownload PDF (634K) -
Syozaburo Yamazaki1982 Volume 36 Issue 1 Pages 142-149
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSThis incinerating system has been installed at Niigata Mill. in August 1981, for the purpose of burning the paper wastewater sludge.
This incinerator has a system of burning up by fluidized bed which consists of a Fluidized lied Boiler and a rotary dryer. This system has two characteristic points, it has no need of any assist fuel and can effectivly recovered the waste heat as porcess steam only by the paper wastewater sludge.
This plant has a capacity of 60t/d (dry sludge) for incinerating and 1.5 t/h (MCR) for the steam generation. It is first plant in Japan as steam recovering system with fluidized bed incinerator for pulp sludge.
After a month of the trial, this plant has been operated in and under satisfactory condition. It can be realized to save energy that the use of the caloriffic value of the pulp sludge.View full abstractDownload PDF (2363K) -
[in Japanese]1982 Volume 36 Issue 1 Pages 150-152
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Hideo Okuda1982 Volume 36 Issue 1 Pages 153-157
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSTwin-Winder has been running successfully at Nippon Kakoh Seishi Co., Ltd.
This report describes the summary of operation for last two years.View full abstractDownload PDF (754K) -
Hisao Takechi1982 Volume 36 Issue 1 Pages 158-163
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Akira Sakurabayashi1982 Volume 36 Issue 1 Pages 164-171
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESS1. DDS-R Control System :
(1) Basic Mechanism
(a) The condition in which the sheet travels is continuously detected by means of a pulse generator on the measuring wheel.
(b) The topological condition in which the knife drum rotates is continuously detected by means of a pulse generator mounted on the motor shaft.
(c) The DDS motor rotating condition is continuously detected by means of a tacho-generator mounted on the motor shaft.
(d) The point in time when the knife drum passes the reference point is detected by means of a proximity switch.
The above-cited mechanisms are responseble for control of the acceleration/deceleration of the knife drum which serves to maintain the predetermined cutting lengths and cutter synchronization.
(2) Basic Control
(a) Cutting length control
Knife drum rotation control to secure the cutting length is set by means of a digital switch.
(b) Stop control
Stop control for accelerating and decelerating the knife drum rotation.
2. RSC Features :
1. One-touch predetermination of cutting length
2. Maintenance of precise cutting lengths.
3. Instantaneuos alteration of cutting lengths.
4. Improved sharpness and elimination of edge adjustment.
5. Extraordinarily long knife life.
6. Free cutting of short and long sized sheets.
7. Mark cutting.
8. Ease of maintenance and inspection.
9. Replacement of present equipment facilitated by system's compactness.
3. ROC Features :
1. A rectangularly cut section is assured, providing results similar to a guilotine.
2. High-speed, high-accuracy cutting process is continuously assured without interruption of sheet flow.
3. Extremely precise rectangularity is attained by means of a cutter synchronization device acting on the sheet.
4. Die-set cutting and blanking processes are possible, and can be done simultaneoutly.
5. The provision of the DDS-R control system makes it possible to change the cutting length instantly.
6. Although it has a broad cutter width, it can even handle short sheet cutting which is beyond the capability of conventional rotary cutters.View full abstractDownload PDF (5642K) -
Masatsugu Nakanishi1982 Volume 36 Issue 1 Pages 172-176
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Toshiyuki Ishikawa1982 Volume 36 Issue 1 Pages 177-182
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSIn 1969 we began to examine modernization of paper finishing, particularly a method of making sheet fine papers without manual sorting. The examination has been carried out for about 10 years on basis of the notion that rolls of the paper with any faults are never transferred to the succeeding process. Now, more than 92% of the sheet papers is produced without manual sorting.View full abstractDownload PDF (546K) -
[in Japanese]1982 Volume 36 Issue 1 Pages 183-185
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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Masayoshi Tamura1982 Volume 36 Issue 1 Pages 186-192
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSOffset printing controls the main stream of the printing business, and due to its continued high quality and relative ease of plate making, it is not expectdd to lose its preeminent position in the foreseeable future.
Belows several thoughts on resent developments in such areas as process ink's gloss, setting, density, UV and IR inks, inks for waterless plate use, as well as news offset inks.View full abstractDownload PDF (1009K) -
Hiroshi Noguchi1982 Volume 36 Issue 1 Pages 193-200
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSThe following is a brief reference to the workability and printability of actual newspaper letterpress printing.
1. Workability
Web breaks, in many cases, are largely related to the horizontal tear strength (CD) and the vertical tensile strength (MD). Therefore, the break rate can be anticipated by assessing the tear and tensile strengths.
The rolling strength applied to webs is very significant in determining the amount of creases becauses the tension applied to webs changes on the press.
2. Printability
It is important to give due consideration to the surface property and sheet-formation of webs so that blurs on solid prints can be minimized.View full abstractDownload PDF (1067K) -
Tsugio Nakamoto1982 Volume 36 Issue 1 Pages 201-205
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSIt appears that there are few objective evaluations from persons who are engaged in the publication of books practically, though technical literatures from all angles are available concerning the evaluation of quality of printed matters.
In this report, some considerations are given on 1) reproduction of halftone dots, 2) gloss and 3) whiteness, all of which were pointed out as parts of important quality of printed matters by persons of leading publishing companies (8 companies).
Particularly, the relationship between gloss and density that is controlled ordinarily in printing operation is analyzed on the concrete data.View full abstractDownload PDF (708K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...1982 Volume 36 Issue 1 Pages 206-218
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
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1982 Volume 36 Issue 1 Pages 219
Published: January 01, 1982
Released on J-STAGE: November 19, 2009
JOURNAL FREE ACCESSDownload PDF (237K)
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