JAPAN TAPPI JOURNALVol. 56, No. 12
December 2002 Abstracts
OptiLoad Calender-Multinip Calender-
Sumitomo Heavy Industries Techno-Fort Co., Ltd.
The OptiLoad multinip calender has been in the forefront of the new surface
treatment technology. Launched in 1996, the OptiLoad has become
a synonym for the new generation multinip calender. The total number
of all OptiLoad ordered is nearing forty, and the market, especially
for on-line applications, has only just opened up. There are clear
reasons behind this success. OptiLoad contains many innovative
features, which have been specially developed to improve the efficiency
and reliability of the new calender generation. Non-compromising
design criteria and thorough pilot testing have contributed to
predictable start up curves and the avoidance of surprises, for
example polymer roll failure.
On-line technology has been the focal point of the OptiLoad development from
the very beginning. On-line technology has proceeded from newsprint
and SC paper to coated woodcontaining grades and finally also to
coated woodfree grades. In fact, on-line technology has now been
applied to all major printing and writing paper grades.
Systematic Approach Janus MK2
Engineering Dept. Voith IHI Paper technology co., Ltd.
The supercalender is the reigning device to produce high quality paper with
a long tradition. Development of softcalender around 1980 represented
a step forward, however, the softcalender likewise failed to meet
all quality demands. In this respect the supercalender remained
unchanged. In only five or six years, the Janus concept has in
fact brought about a quantum leap in calender technology. This
implementation has definitely derived from the new cover and material
technology. This article introduce the new development via the
systematic approach and how did it make up for the long stagnation
Modern Winder Improvement
Jagenberg Co., Ltd., Voith Paper Group
According to the demands from the market, paper mills are forced to produce
better quality rewound rolls day by day, for which winder technology
must be improved. Further, not only roll quality side but also
size of shipping roll is becoming larger and larger due to printing
Under such a circumstance, Voith Paper Jagenberg GmbH improved single drum
winder taking into consideration of the following important factors.
1) Rewound roll hardness control by center-winding. Individual
rewound roll control ispossible.
2) Full automatic reel set changeIn order to reduce number of operator, full automatic reel set change is developed.
3) One man operation is possible.
4) During winding process, there is no influence on rewound roll quality by increasing rewound roll weight.
According to the improvements, Vari-Plus can run with the most
suitable tension for the applied paper and winding most suitable
rewind torque for desired hardness. Therefore, we can expect
less paper breakages and obtain exact required harness of roll.
WINROLL Winder− Winding concepts and WINROLL winder −
Sumitomo Heavy Industries Techno-Fort Co., Ltd.
Increasing the size of rolls of rotogravure, LWC and newsprint, increasing
the speed of printing press, and evolving of paper grades and paper
making processes require to match the capacity of winder to the
paper machine operated with high speed.
Based on these demands, minimizing manual operating and increasing operation
productivity, Metso developed the completely new multi-station
winder called "WINROLL". There are many automated functions
such as "splicing at unwinding stand", "web threading", "core
handling" and "tail fastening", which make one-man
The WINROLL winder is able to produce 10 ton and 4 meter width rolls by new
Automatic Transfer System between Reel and Winder−Try for Automatic between Reel and Winder−
Mitsubishi Heavy Industries, Ltd.
Generally, after being made by paper machines and taken up by reels, jumbo
rolls are taken out and transferred by cranes, and then supplied
to winders. In empty spools after paper is wound by the winder
is removed. Thereafter, the empty spool is returned to the reel
by cranes. For the meanwhile, since the operation above requires
manpower when using cranes, to eliminate such crane operation,
automatic transfer systems and labor saving between reels and winders
have been sought-after.
In order to achieve this automatization, we delivered the "Automatic Transfer System between Reel and Winder" to Nippon Paper Industries Co., Ltd. Yatsushiro Mill N-2 machine and Daishowa Paper manufacturing Co., Ltd. Yoshinaga Mill No. 14 machine, which realized unmanned transferring of jumbo rolls and spools between reels and winders, resulting in reduction of the transferring time and improvement of safety factor as the crane operation can be eliminated.
In order to meet the needs for speeding-up of the paper machines, we introduce double-winder arrangement to our Automatic Transfer System between Reel and Winder for jumbo rolls. Simultaneously, we are aiming to totally automatize the transferring system of jumbo rolls between reels and winders.
- SLITTING-The European way-
- Latest Development In Slitting Technology And Dust Reduction -
DIENES WERKE GmbH & Co. KG
〇Vice President(Marketing Asia)：Norbert Lanzerath
DIENES WERKE GmbH Co.& KG developed some new systems for web cutting.
We introduce their systems, for example, Dienes Digital Measuring System, "ASPS",Anti-dust-surface (ADS). Furthermore we introduce Dienes’s cutting theory for best quality of cut edge and less paper dust.
Current Situation of Fully Automatic Random Roll Wrapping Machine
Finishing Machine Sales Engineerring, Kawanoe Zoki Co., Ltd.
The wrapping process, which is the final finishing process for rolls (products),
must meet the needs of a larger wrapping volume and a larger variety
of wrapping specifications than ever before. As production control
in the entire plant becomes computerized, roll wrapping machines
also receive wrapping data on-line, paving the way for automatic
wrapping to process a large volume and a large variety of specifications.
Now we have developed a roll wrapping machine that can process
rolls produced by several paper machines, by increasing its wrapping
capacity as well as enabling it to follow a large variety of wrapping
This machine consists of a bar code reader, inkjet printer, wrapping machine,
and labeler. Operation data for each part can be set or changed
easily through a touch panel. The operator training will be completed
in a relatively short time.
This machine has demonstrated high reliability as equipment that plays an
important role in the final finishing process for rolls.
Optima＜New Design Roll Wrapping System＞
Engineering Dept. Maruishi Co.,Ltd
With the increased speed and width of paper machines, larger paper rolls are
produced for even faster printing machines. Corresponding to these
requests, each machinery manufacturer is trying to develop high-quality,
full automatic and labor-saving winders for bigger paper rolls
with good quality. Thus, for more stable and efficient production,
the recent trend of the finishing line is one unified wrapping
system optional with the diversity of wrapping forms for various
paper rolls from several winders.
As a result, Maruishi-Saimatec newly-developed wrapping system, capacity over
150 rolls/hr. with only one operator, has become a realized dream
to paper mills around the world. This super productivity is achieved
on account of on-line synthetic FA control, a robot system, innovated
index conveyors and so on.
We would like to introduce such new technologies jointly developed by Maruishi
in alliance with Saimatec. In order to provide equipments that
meet the various needs of paper mills around the world, our technologies
and innovations will go on.
In this article, I’d like to explain in details the rationalization concept
and optimum features of "Optima-Multi roll Wrapping System",
particularly about the "Robot Lap System", which is highly
evaluated around the world.
Logistic Information System for Pulp and Paper Industry
Information Solution Business Division, Yokogawa Electric Corporation
The information processing business on the pulp and paper industry is dramatically
changing for recent few years. This remarkable progress comes user
request and vender proposal by using the latest IT technology with
Thus, the purpose of logistic control system on the pulp and paper mill has
changed from labor saving and partly-process optimization to all-process
or all-mill optimization. Therefore, the engineer required more
rich experiences and extensive knowledge such as computer, process,
plural vender control, etc. than before.
In this article is presenting the most effectiveness logistic information
system by using our recent delivery experience.
Operating Experience of Janus Calender to Yonago N-1 Coater Machine
Yonago Mill, Oji Paper Co.,Ltd.
Ｎ−1 Coater at Yonago mill, Oji Paper, has been in operation since September
1997. The Coater has two coating stations of 7,290mm coating width,
and the design coating speed is 1,600m/min, producing mainly 700tpd
of woodfree coated paper.
Janus Calender from Voith Paper, Germany was installed following the coating
section as an on-line supercalender for the first time in the world.
The primary objective of having on-line supercalender at the coater
was to reduce the initial investment and maintenance costs, to
achieve higher personnel productivity, and to produce coated paper
of better quality. This article introduces the latest operating
experience of N-1 coater and Janus Calender.
A Report on 17th ISO/TC6 Meeting
Takayuki Okayama*, Tadashi Kano** and Tetsuhisa Oishi
Pulp and Paper Testing Committee, JAPAN TAPPI
*Tokyo University of Agriculture and Technology
**Nippon Paper Industries Co., Ltd.
ISO/TC6 held a meeting on June 10-14 in Paris. Two Sub Committees and thirteen
Working Groups also met during the week of the ISO/TC6 meetings.
Seventy-five delegates representing seventeen countries attended
the meeting of TC6.
A new work item for the measurement of fibre coarseness will be carried out
within TC6/SC5/WG18, which was renamed "Fibre properties".
TC6/SC2/WG29 "Thickness, density and specific volume" was
reconstituted for the revision of ISO 534. WG30 "Tensile properties" and
WG31 "Edge quality of cut-size office paper" were also
established within TC6/SC2.
TC6/SC2/WG25 is in progress of formalizing the appointment of Messmer and
Lorentzen & Wettre as Standardizing Laboratories for the calibration
of print-surf dummy heads according the requirements in ISO 4094.
At the plenary meeting of ISO/TC6, it was announced that the next meeting
would be held in Tokyo from November 3-8, 2003.
HBS pulping (4)- ECF Bleaching of HBS pulp and Thermo-stabilization of HBS Solvents-
Aorigele, Junko Kajimoto and Yoshihiro Sano
Laboratory of Wood Chemistry, Graduate School of Agriculture, Hokkaido University,
Todomatsu (Abies sachalinensis Mast.) chips as softwood gaveT-pulp with a
Klason lignin (KL) content of 5.6% and a viscosity degree of 21.5
cP at a yield of 50.3% by HBS pulping with a mixture of 70% aqueous
R-1,3- and 1,4-butanediol (as RHBS shown in Fig. 1) at 210℃ for
3 h. Birch (Betula platpylla var. japonica Hara) chips were cooked
with 80% RHBS at 180℃ for 3 h to give B-pulp with a KL content
of 5.0% and a viscosity degree of 43.4 cP at a yield of 54.3%.
Chinese reed gave R-pulp with KL and ash contents of 2.5 and 6.3%
in a yield of 48.7%, when cooked with 80% RHBS at 200℃ for 2 h.
B- and R- pulps were fully bleached by ECF sequence with OD, and
T-pulp with ODEPP. Bleached B- and T-pulps had TI of 12.4 and 17.6
mN・m2/g, indicating that TI of HBS pulp was remarkably improved
by ECF bleaching. Seventy and 80% aqueous HBS such as 1,3- and
1,4-butanediol, propylene glycol and 1,5-pentanediol were quantitatively
recovered on heating at 190℃ for 2 h, so they can be reused repeatedly
as pulping solvents without distillation for purification and also
with a little loss.
Keywords: HBS pulping, high boiling solvent, wood, reed, ECF bleaching,save-energy pulping process
Elastic Deformation Analysis for Case (Square Tube) of Corrugated Fiberboard Box Shape under Uniform Compression
Guest Professor, Center for Corporative Research and Development, Ehime University
Professor Emeritus, Ehime University
A formulation of elastic deformation was expressed for side plates in the
case (width L/height h=1/2~2) of the corrugated fiberboard box
shape (CFBS) supported by upper and lower edges under uniform compression
loading. Then from this formulation, behaviors for stress and strain
Normal stresses σｘ, σｙ and strains εｘ ,εｙ in width and height directions for
the plate are symmetric to center lines of the width and the height,
and shear stress τｘｙ is anti-symmetric. And εｘ is mainly plus and
εｙ is minus, and the maximum of εｘ is in upper and lower edges
and the maximum of ・εｙ・ is at distance L/7 from the upper or the
lower edge in side edges. The maximum value of εｘ is about 10％
to the maximum value of ・εｙ．The maximum of ・σｘ・ is constant to
increases of L and h, and the maximum of ・σｙ・ increases a small
with L increase and decreases a small with h increase．The maximum
of ・τｘｙ・ decreases obviously with L increase and increases obviously
with h increase． The maximum of εｘ first increases a small and
next decreases obviously with L increase, and first increases obviously
and next decreases obviously with h increase. The change of the
maximum of ・εｙ・ is a small to changes of L and h．
Key Words：Computational Mechanics, Structure Analysis, Elastic Bending, Strength of Corrugated Fiberboard Box, Elastic Stress Analysis, Structure Strength, Numerical Analysis