2006年10月 紙パ技協誌

 
A New Felt Conditioner
- PRESS SHOT Series -

Satoshi Wada and Kenji Kowata
Kurita Water Industries Ltd.

 In recently years, various new types of contaminations are occurred in the papermaking process, they decrease the productivity of papermaking. Felt conditioner are applied for resolving these problems.
There are very few technical reports describe on the relation between papermaking conditions and the variation of contamination, and their treatments. Here, felt conditioners named "PRESS SHOT" series were developed based on a new concept, and their applications were introduced in this paper.
 PRESS SHOT series were designed and developed for dealing various kinds of the contamination in papermaking. They are especially effective for decreasing the contamination by calcium carbonate, and increasing the papermaking productivity.
 It is believed that PRESS SHOT will match the increasing trend of higher filler content using calcium carbonate.


BTF Headbox and BTF Dilution Control System
- Application Report on BTF Dilution System -

Junichi Yano
Design Section, Kawanoe Zoki Co., Ltd.

 Now two BTF automatic dilution system are running smoothly in Japan.
First installation is at Marusumi Paper PM3 in 2004, and second one is at Ehime Paper PM2 in 2005. Those two installations have achieved much better level of 2 sigma than the target value we had expected. And we are starting up the third BTF dilution system at M Paper PM4 in this August. Those three installations are BTF dilution system retrofit to the existing headbox. BTF dilution system retrofit is in some means to enhance the performance of the existing headbox by replacing the tapered header with the BTF Central Distributor and BTF dilution system.
The BTF retrofit mentioned above gives your headbox a new breath.
 A complete new hydraulic headbox with BTF dilution system is in our scope of supply. 60 BTF headboxes have already been installed in Europe and 20 in North America.
Substantial improvements in CD profile, fiber orientation, and formation have been achieved. And in Japan we are starting up a new complete BTF headbox with automatic dilution system at M Paper in the next January. We will soon be able to show the best result of both third BTF retrofit to an existing headbox and a first complete new BTF headbox.


kajaaniPulpExpert, On-line Automatic Pulp Laboratory with Revolutionary New Fiber and Shive Measurement

Takeshi Sato and Masanori Shimozaki
Metso Automation, Field Systems Division

 After 15 years experiences and close co-operation with the customers, there has been launched new generation automatic pulp testing laboratory - kajaaniPulpExpert. Compared to old PulpExpert systems, the measurement modules are improved to fulfill the demanding needs of today's pulp and paper quality management: high measurement precision and low maintenance need.
 kajaaniPulpExpert has a new technology for measuring shives and fibers. New revolutionary, outstanding performance, measurement module for measuring fibers and shives has been developed. New measurement algorithm is not just for kajaaniPulpExpert, but also for other Metso fiber analyzers; FiberLab and FS300.
Measurement speed, analyzed fiber amount and repeatability are 5-10 times better than any fiber measurement in the past. Module is suitable for all type of paper pulps. Module will be possible to install as update for existing PulpExpert systems.


Development of Healthy/Functional Crops

Koichi Sugita
Forestry Science Laboratory, Nippon Paper Industries Co., Ltd.

 We have developed the original technology to generate genetically modified woody plants for pulp materials. For example, we produced an anti-salt damage genetically modified eucalyptus into which the gene of anti-salt bacteria was introduced. Although a lot of genetically modified plants have been developed in all over the world, the eucalyptus is one of the most difficult plant species. We developed the original technology to generate a genetically modified eucalyptus. This technology could be applied to produce healthy/functional crops which healthy/functional materials, peptide or protein, were accumulated into an edible part of plant. We mainly introduce here genetically modified rice seeds for the prevention of human cedar pollen allergy and type-II diabetes. These rice seeds demonstrated the potential to induce biological effects in cultured mouse cell systems. We will commercialize the rice seeds in near future, following verification of efficacy and safety in animals and human.


For Sound or Noise in Industrial World
- As Part of T.F.O. from SKF -

Yasuhiko Yamasaki
Condition Monitoring Service Division, SKF Japan

 The noise and the vibration that maintenance person says are the one while the machine is operating it. Where does the noise come? The mystery is investigated.
It thinks about the efficiency improvement of the industrial world once by considering the generation mechanism of the sound or noise now.


Introduction of Latest Development of Dienes Cutting Technology Both in Soft and Hard
- Is Your Slitting System Still Profitable -

Heinz Herkenrath and Moritake Onuki
Dienes Japan

 Concerning with Dienes "Full Automatic Slitting ", we have to admit that there are lots of newly developed features beyond our expectation. One of them is a "Cutting point" to be kept mechanically with its system. Mechanically referred is a specially designed and manufactured "Ball-bearing knife holders axles (zero gap in between)" combined heat treated mechanical components. PLC control system can guarantee "Automatic depth adjustment" to be within ±0/05mm and its CSL to be continuously maintained.
 Automatic positioning system is guaranteed to be free from vibration and keep its accuracy ±0.1mm with its speed 1,500mm/min (5 to 6 units combination of Top and Bottom knife can be positioned within approximately 30 second).
Based on these developments, a lot of cutting loss can be reduced together with increasing number of layers (multi layer of non coated paper,850g/m2 can be cut smoothly) and contribute its manufacturing efficiency.
 Not only Automatic positioning system, Dienes as a long experienced German knife manufacture have been developing its original knife quality to be fit for clean cut with long life running.


Effective Pest Control Activities

Shinya Yokoo
Research & Development Division, Earth Environmental Service Co., Ltd.

 ESCO (Earth Environmental Service Co., Ltd.) have made annual base contact with up 7,000 food-related facilities, including food contact packaging manufacturing factories, for prevention of foreign mater from finish products. Any contamination derived from environment such as a contents product, a bottle and/or a package material, facilities, manufacture machines, an air environment, pests, use water, wastes and a consciousness of all of the members (contained outside workers).
 However, these activities don't work well or not effect. For example one of the person does activities, another persons don't know activities. And they dose not distinguish phenomena from causes.
 Today, we explain about effective pest control activities in the quality assurance.


The Development of a Functional Heating Sheets Using a Papermaking Technique

Yoshiaki Kumamoto, Masataka Ishikawa, Tooru Ugajin, Hidetoshi Ooga and Hironobu Kawajiri
Processing Development Research Laboratories, Kao Corporation

 We have focused on adoption of pulp that is a recyclable material, instead of plastic that is an exhaustible resource, and developed "a paper bottle" in 2000 for the first time in the world as an attempt to the recycling society in the future1〜2). In this development, we found out that the pulp is a material with a great diversity and can immobilize a functional powder at a high ratio3).
 We have developed a ultra-thin and flexible heating sheet element with abundant steam generation by immobilizing the iron powder and the activated carbon on the pulp in a high density, applied paper-making technique4〜6).
 In this paper, we report this heating sheet element that is quite different from a common heating element such as the body warmer.


IQInsight

Junichi Mori
Metso-SHI Co., Ltd.

 A new, instantaneous full-sheet moisture profile measurement has been after the press section. This new measurement system, called IQInsight, takes instantaneous profiles of the moving paper using an array of infrared detector modules across the web. This measurement array and associated fiber optic cabling are embedded in a pressurized protective enclosure that is located early in the first dryer section.
 With this measurement, short-term machine direction and cross direction disturbances that cannot otherwise be seen clearly with traditional dry end scanning measurement are isolated and quantified. Specific examples of MD and CD stability problems that have been identified and corrected are presented.


New Techniques for Paint and Coating Applications

Keisuke Miyamoto
Nihon SiberHegner K.K.

 In practical applications the following information is important concerning the rheological behavior of coatings:
 ・Time depending behaviors directly after a sudden change of shear conditions. Practical use:
  Application behavior (thixotropy), leveling, sagging, layer thickness.
 ・Rheology plays an important role in dewatering processes. It is therefore interesting to analyze
   the dewatering process and the rheological behavior of a suspension simultaneously.
 This paper informs newer rheological measurement about the behavior paints and coatings. Presented is a new test method for the investigation of the thixotropic behavior.


New Folio Size Sheeter Technology
- FS-PRO Mark-Free Sheeting Technology -

Robert Deutschle
E.C.H.WILL GmbH Germany
Kimio Shigeta
Paper Converting Machinery Sect., 2nd Machinery Dept., K.K. IRISU

 Today's folio sheeting industry is facing a challenging situation. The printing industry requires high quality paper and board material to achieve high-quality printing results to satisfy their customers' needs.
 At the same time, paper mills and converters face high price and cost pressure due to smaller order sizes and shorter time to delivery. In this situation, marks and scratches on high-quality paper and board mean insufficient product quality, less output, more waste, lower efficiency and productivity of equipment and can result in customer claims, loss of image and, at the worst, loss of future orders.
 E.C.H. Will has found the solution to avoid marking on the surface of top quality paper and board, even at speeds of up to 350m/min.


The 2006 Pan Pacific Conference
- June 6-9, 2006 at Seoul, Korea -

Takayuki Okayama*1, Toshiharu Enomae*2, Hiroshi Ohi*3, Toshihiro Ona*4, Makoto Iwasaki*5, Yosuke Uchida*5, Shunichiro Uno*6 and Kunitaka Toyofuku*7
*1 Tokyo University of Agriculture and Technology
*2 The University of Tokyo
*3 University of Tsukuba
*4 Kyushu University
*5 Oji Paper Co., Ltd.
*6 Nippon Paper Industries Co., Ltd.
*7 JAPAN TAPPI

 2006 Pan Pacific Conference was held (6-9 June) under the auspices Korea TAPPI in Seoul, Korea. Mr. Okayama, professor of Tokyo University of Agriculture and Technology and Mr. Toyofuku, executive director of JAPAN TAPPI attended the conference as the representatives of JAPAN TAPPI. Pan Pacific Conference is held every two years in the rotation of 8 countries of Pacific Rim. The conference was held in Canberra, Australia in 2004. At the 2006 conference 8 Japanese speakers attended. A summary of Japanese presentations and other interested ones are described.


Report of 2006 TAPPI Coating and Graphic Arts Conference

Jun Makihara
Research and Development Dept., Product Development Research Lab.
Nippon Paper Industries Co., Ltd.

 2006 TAPPI Coating and Graphic Arts Conference was held in Atlanta, GA, USA from April 24 to 27. This technical conference included 69 presentations in 21 sessions. The author had an opportunity to attend it, and review some of presentations in this report.
 International Conference on Nanotechnology for the Forest Products Industry, which was organized by TAPPI for the first time concerning about nanotechnology, was also held at the same place from April 26 to 28. This report introduces a few of presentations as well.


Report of Studying at Royal Institute of Technology

Koki Kisara
R&D, Pulp and Paper Research Laboratory, OJI Paper Co., Ltd.

 The author had an opportunity to study at Royal Institute of Technology (KTH) in Stockholm, Sweden for one year in 2005. The author joined "Wood and Pulping Chemistry Research Network (WPCRN)" project in department of Fibre and Polymer Technology of KTH as a guest researcher. In this report, the review of WPCRN, the impression of the studying, and the life in Sweden are presented.


Synthesis of Artificial Zeolites Containing Titanium Dioxide and Their Abilities for Removing Bad Smell Substances

Satoru Fukugaichi, Akira Uramoto, Hideaki Ichiura and Masaaki Morikawa
Paper Industrial Research Institute of Ehime Prefecture
Shouichi Kyougoku and Kousaku Nagashima
LINTEC Corporation
Toru Yamamoto, Naoto Matsue and Teruo Henmi
Faculty of Agriculture, Ehime University

 Paper sludge (PS) has been discharged from paper-mill as an industrial waste of paper manufacturing processes. Most of them has been burned in an incinerator and thrown into the discard as solid waste for reclaiming a land. It is urgent matter to establish an effective technique for a recycling of PS, in consideration of current envirornment-oriented trend. In recent years, the formation of zeolites using PS ash has been reported. Acetaldehyde (CH3CHO) is a kind of toxic gas with strong fruity smell, and is contained such as in motor exhaust and tobacco smoke. It is strongly required to develop agents for removing toxic gases, in relation to current health-oriented trend. In this study, we tried to synthesize three types of zeolites, NaP1 (P-TiO2), Zeolite A (A-TiO2) and Faujasite (F-TiO2), from PS ash containing titanium dioxide, discharged from paper mills in Shikokuchuo-shi. These zeolites were produced by hydrothermal reaction with sodium hydroxide. The capacity of these formed zeolites containing titanium dioxide was evaluated by removing acetaldehyde experiment. All formed zeolites containing titanium dioxide had abilities for removing acetaldehyde gas. In particularly, F-TiO2 showed the highest activity. It was suggested that the zeolites synthesized using from PS ash would have enough ability for the removal of toxic gas in atmospheric environment.

Key words: paper sludge, zeolite, titanium dioxide