Recent environment around paper industry has been changing, especially in regard to increasing paper recycle rate. It causes in fluctuation of furnish quality, that influence on machine running stability and paper product quality. In such a complicated situation, we focus on “water” used a lot in paper-making process to improve productivity. We report our new technology, “S.sensing^® system” to achieve it by stabilizing water quality. S.sensing^® system has three functions : monitoring, analysis and control. First, we monitor water qualities and accumulate machine running & paper quality information from customer. Second, we analyze the correlation among them. Third, we control water quality and achieve improvement on machine running stability and paper product quality.

In this report, we introduce the case study that defect on paper reduced by analysis correlation between water quality & defect causes then controlling water, and we linked the upstream side and the wastewater treatment process by our newly developed “S.sensing^® system”.

The concept of “Papermaking 4.0”，launched by Voith Paper in 2015 in Asia including Japan, is the fourth high–tech strategy “Industrie 4.0”，a high–tech strategy promoted by the German government. Based on the industrial revolution. Construct a system combining modules composed of highly digitalized smart de vices, collect and analyze huge big data such as machine equipment, papermaking process and product quali ty via high–speed network, and perform advanced predictive control This is a new total solution for paper machine equipment that provides predictive maintenance and artifi cial intelligence based on condition moni toring results, and operation support services that make full use of machine learning functions. A new compa ny, Voith Digital Solutions, launched in April 2016, brings together resources within the Voith group to the development of new digitization products and application software and services that make full use of IoT technology, creating a digitization business model It was established for the purpose of further expansion. Product development and data security using a cloud system by expanding to the area providing secure and reliable IT infrastructure facilities and services that are the foundation of the three product areas of smart control, smart maintenance and smart service In addition, services such as cyber security measures and pen etration tests to diagnose system vulnerabilities can also be provided.

As the worldʼs leading paper machine supplier, Voith integrates the latest dynamic advanced information technology with the know–how accumulated in the papermaking process through the design and develop ment of numerous papermaking machines provided over the past 150 years Bring the next level of change to the paper industry. We will introduce the smart control module of wet–end process, which has obtained good results in the past several years after verifi cation on the actual machine, including future possibilities. In the conventional method of measuring the strength of the paper, the sheet sampled from the surface layer of the winding after frame change is subjected to destructive inspection in the test room off–line.

Therefore, a time lag of approximately one hour occurs before refl ecting the measurement result in op eration and obtaining the result. In order to guarantee the quality target value of the shipping products reli ably, it is addressed by setting the setting value in the operation to a high value, but excessive waste or waste is generated in medicine and raw material combination. This is a factor that lowers production efficiency, as products manufactured from the time a problem occurs beyond the allowable range of the quality target value to the time it is dealt with are scrapped. The virtual sensor is a technology that can predict and quantify various quality control values online by analyzing and modeling（static and dynamic）process data, machine data and test data. Since real–time quality control can be performed, excessive operating cost reduction and productivity improvement can be expected. On–line control in combination with the smart control module can also provide safety assurance and performance improvement through stable operation. Extremely high accuracy, as highly correlated data is found from all process data, machine data, and test data and reflected in the model instead of using only correlated process data based on theory or experience A model is built. Basically, all quality control values can be modeled as virtual sensors.

The Industrial Internet has enabled the unlocking of the value of vast data resources in a modern pulp and paper mill. Combining process and business data from different mill systems, applying advanced analytics and utilizing industry knowhow allows advanced companies to launch new data driven analytical applications. The applications can just visualize the big data, but also incorporate artificial intelligence to predict future out comes and increase overall level of intelligence. New applications enable assisted decision making by mill oper ators and create more intelligent setpoints to the automation system. Analytical applications and remote con nections can be also used by suppliers process and machine experts in their remote support centers. The future of data analytics will involve common solutions by suppliers in a so-called “digital ecosystem”. Concrete steps in building this ecosystem are being taken by combining the resources and solutions of an automation supplier with a supplier of enterprise resource planning and manufacturing execution systems.

In recent years, the usage of wastepaper pulp and recycled water has increased in paper machines in or der to reduce environmental burden. This increase has brought a lot of troubles in paper making process and paper quality itself. These troubles are caused by microorganisms, residual paper making aids, pigments and stickies which originate from wastepaper. Therefore, we have developed “CURECIDE System（slime control agent）” for microbial deposits and “AXISZ System（retention aid / coagulant）” for the deposits which come from papermaking aids and stickies.

“CURECIDE System” is composed of a variety of slime control agents. These agents are mixed with so dium hypochlorite when they are dosed. This system can generate both general inorganic and organic bio cides. The organic biocide is very excellent in not only long-time effectiveness as bactericide but also an ti-fungal effect. Fungi grow fast with starches, but starches which derive from wastepaper pulp are increasing. This trend helps increment of microbial deposits. “CURECIDE” and sodium hypochlorite are trans ported to the machine side in two separated pipes and are mixing just before added to paper machine. In this way, there is no decrease in the sterilizing effect. Our on-machine trial shows that the number of microorgan isms reduces greatly. Consequently, the paper defects decline as well.

“REALIZER FX77”, retention aid which is one of the compositions of “AXISZ System” is very effective for the deposits from stickies and papermaking aids. “REALIZER FX77” is a high-performance retention aid which is incorporated with “Reactive Polymer Technology”. “Reactive Polymer Technology” is able to bind both stickies and residual paper making aids to pulp fibers even if the retention aid polymer is broken by machine shear. To add “REALIZER FX77” improves the retention of internal sizing aids. Hence, the number of paper defects which are caused by the residual sizing aids can be greatly reduced.

Several mill trials on a twin wire gap former suggested that neutral PCC （Precipitated Calcium Carbonate） filled newsprint has high brightness and opacity, and is technically feasible. Sheet formation was good, physical properties were acceptable, and print quality such as ink transfer and print through was excellent. However, more linting propensity was observed. To solve this problem, Prüfbau printing tests and EPMA （Electron Probe Micro Analysis） were employed for the evaluation of linting tendency and paper sheet struc ture. PCC fillers retained by mechanical filtration were observed near the paper surface as agglomerates. Laboratory studies found that using a retention aid improved two-sidedness of paper and distribution of PCC fillers by colloidal forces, and reduced linting propensity.

Based upon these results, the next mill trial was performed. For effective use of retention aid, zeta potential of the paper machine headbox was monitored continuously by an on-line instrument and was controlled into the proper range. Stock inlet pH was stable at 7.5-8 due to the buffering effect of PCC, and no darkening of mechanical pulp was observed. No paper breaks or foaming troubles occurred. The first pass retention was increased and two-sidedness and linting of the newsprint were decreased to satisfactory levels. The neutral papermaking technology of newsprint was successfully applied to develop value added high brightness and high opacity wood containing printing grade and generated ample profit to paper mills.

Harima Chemicals Group supplies wet end chemicals such as paper dry strength resins （DSR） and rosin dispersed sizes in Japan, China, US and Southeast Asia （SEA） corresponding to the requests of paper quality for customers and the compliance of regulations for environment.

In this report, the trend of wet end chemicals in the area and the countries is described based on the paper production with economic trend. The performance of wet end chemicals is massively affected by the con ditions of raw materials and machine setting such as recycled fibers and pulp types and wire types, etc. In order to get the best performance of wet end chemicals, it is necessary to comprehend the wet end condition. Then, we can get the better runnability and productivity with optimizing the application of wet end chemicals and machine setting. We recommend our DSR （Harmide^®） for better runnability and total cost reduction against the application of starches for papermaking. Also, we introduce our rosin dispersed size （Harsize^® and NeuRoz^®） with Co-mingle system^® for better sizing and cost reduction.

Recently, the quality of the wastepaper is lower than before, because the good wastepaper circulation volume shrinkage by infl uence of progress of information digitalization, and the other hand, improvement of paper quality and weight saving are desired from paper and board user, therefore deposit trouble is one of a serious problem for papermaking engineers.

The pitch measures in the pulping process are extremely important as one of the means to solve the pitch problem fundamentally. But it is impossible to solve the pitch trouble only by the pulping process, so the pitch measures at the wet end are also necessary.

This report introduces the pitch control method at the wet end.

Approach Flow means the system to prepare the suitable fiber and water condition just before the Headbox. The suitable condition is that uniform paper is produced without paper breakage and/or quality problems during operation. For the continuous and stable production, Approach Flow should get rid of problems mainly like pulsation, uneven fiber consistency and mixed and dissolved air bubbles. Additionally, saving energy and less space of installation for machines are also required for better system.

CoMix is the system for fast and even mixing. Hydromix is for stock dilution with short retention time. The size of CoMix and Hydromix is much smaller than conventional design. Dearation tank system has less energy consumption than dearation pump system. Pulsation can be decreased by Multifoil rotor and special casing screen.

With these machines, the latest Approach Flow System achieves much compacter system with less energy consumption and stable uniform stock quality.

Oji Paper Yonago︲Mill N︲1 Paper Machine （N︲1M/C） has started commercial operation with producing the base paper for A3 grade （Light weight coated grade） since October 1998.

In 2000 the wood︲free paper production has been launched then, the production of the base paper for A2 grade （Fine coated grade） has been as follows started in 2005 when the remodeling of the off ︲coater part was completed.

A tremendous measure has been taken on N︲1M/C to achieve much higher machine effi ciency and im prove the quality though, we are introducing the useful work for the quality improvement through the approach system in this article.

Bioethanol produced from biomass is expected to become a sustainable energy source in the future since bioethanol has advantages over fossil fuels. Namely, bioethanol is a natural and renewable form of energy that does not increase atmospheric carbon dioxide levels, because burning biomass releases carbon dioxide that is largely balanced by the carbon dioxide absorbed in its own growth. In Brazil and the United States, bioethanol produced from sugarcane, corn and other crops is already being used as automobile fuel by blend ing with gasoline. Increase in bioethanol production may, however, lead to increase in food prices due to the competition with food production.

In our country with the background of self-suffi ciency ratio in the primary supply, “Sophisticated meth od of energy supply structure” has been established in 2009 to limit the volume of green-house gas emission and use of the biofuel is required. At the present, bioethanol which made from sugarcane is imported from Brazil. But considering in competition with a food is mentioned by a law, development cellulosic bioethanol is required from the prospective of energy security.

From 2015 to 2017, JXTG Nippon Oil & Energy （JXTG） and Oji holdings （Oji HD） studied “Demonstra tion and Development Project of Production System for Cellulosic bioethanol” for the purpose of development and demonstration. This project was supported from New Energy and Industrial Technology Development Organization （NEDO） and gathered the elemental technology obtained in the previous project, and in experi ment, the most suitable combination was selected. Furthermore, we operate pilot-scale plant and confi rmed the productivity of the cellulosic bioethanol.

In 2015, Tocalo Co., Ltd. started on–site coating applications of DryOnyx H, a release coating for dryer cylinders of paper machines licensed from Valmet Corporation, Finland, for Japanese paper manufacturers af ter closing a license agreement with the company in 2014 August. Valmetʼs DryOnyx H represents a package of unique technologies for coating formation that is highly recognized and used by paper manufacturers around the globe and is a successor, with improved features, to DryOnyx Z. The number of cylinders coated with DryOnyx H tops 300 as of 2014 August. Its functional coating surface has proved excellent releasing and non–stick properties for doctored dryer cylinders, contributing to drastic productivity improvements in pa permaking processes.

One of the biggest advantages of DryOnyx H is its short time requirement realized by the on–site appli cation, which eliminates the needs for removing large cylinders from the line and transportation to the coat ing facility as required in conventional release coatings. Low temperature cured paints and polytetrafl uoro ethylene （PTFE） fluoropolymer sheets are known as conventional on–site solutions for dryer cylinders, however, only few examples of actual use are found due to quality and short service life from their low dura bility to doctor blades. DryOnyx H is on–site coating technology designed to provide solutions for these chal lenges and now meets customersʼ expectations for shorter process time and longer service life.

During 2 year period from September 2015 to the end of 2017, nine cylinders have been applied with DryOnyx H, and more than six projects are underway in 2018. In this paper, the basic characteristics and coating processes of DryOnyx H along with its performance are reported.

In all types of mature business, constant improvements are required for a company to stay competitive. Today it is more important than ever. Search for cost reductions and improved efficiency is always on the agenda. In the pulp and paper industry, the first goal is to produce a product within given specification at the lowest possible cost - quality testing and monitoring of the process is one way getting there.

In this speech, at first about L&W Autoline, I would like to share our experience and knowledge which has been obtained from installation base of almost 500 systems all over the world. And, I continue to introduce the design concept and capability of L&W Freeness Online, L&W Fiber Online, and our new solution, L&W Freeness and Fiber Online which can combine the online measurements of freeness and fiber properties.

Reliable automated paper testing system and online pulp measurement system helps to monitor and control properties and qualities, and to create the best possible continuous and uniform process throughout from pulp furnish and to paper product.

Ion chromatography（IC）was first published by H. Small et al. in 1975. IC is the method in which ions are selectively separated. It has been adopted to standard test methods such as “JIS K0127 ion chromatography common rule” and “Standard Methods for the Examination of Water” and applied in various fields such as the environmental, the chemical industry, the pharmaceutical industry. The IC consists of a pump that delivers the eluent, an injector that introduces the sample, a column that separates the target analyzer species, and a detector that detects the separated analytical species. In this study, we investigated the 2 mm column instead of the current 4 mm column and 100 ml instead of the current 25 ml loop to develop the micro-analytical method. Results show the sensitivity was 20 times higher than that of the current method.

The peak of the carbonic acid ion（CO₃^2-）could，however，be detected in between the peaks of nitric acid ion（NO₃^-）and sulfate ions（SO₄^2-）because of the high sensitivity of analysis，resulting in the lower analytical accuracy due to the changes in the retention times, sensitivities, reproducibility, the peak shapes, etc. Although we investigated the device for removal of the carbonate ion, it was not so effective as to lower the carbonate concentration for the high sensitive analysis. Therefore, we examined the different types of the columns, the gradient conditions of the eluent, and the column temperature. We applied the analytical method developed and optimized for the trace anion quantitation to paper samples. Results demonstrated that the method we developed was highly sensitive and also quantitative for the paper samples.

Together with about 100 group companies in Japan and overseas, Kawasaki Heavy Industries（“KHI”）  oversees the formation of a “technology corporate group”. Our technological capabilities, polished over a history that exceeds a century, send diverse products forth into wide–ranging fields that go beyond land, sea, and air, extending from the ocean depths to space. Aerospace division is active in products ranging from aircraft to satellites. The products that our rolling stock division delivers to the world include Shinkansen and New York subway cars, while our ship and offshore structure division’s products range from gas carriers and large tankers to submarines, and our energy solutions division covers the spectrum from development and manufacture of energy equipment to management systems. We are also active in wide–ranging businesses driven by diverse and high–level engineering technologies, including environmental and recycling plants, industrial plants, precision machinery, industrial robots, and infrastructure equipment. We operate our leisure and power products business that features the motorcycles known as the Kawasaki brand. Through the development of unique and broad businesses unmatched elsewhere, we will continue to create new values that solve the issues facing our customers and society.

KHI Energy System & Plant Engineering Company supplies power generation products and systems that use gas turbine generators, gas engine generators, and etc. as key components in the energy field, and it provides engineering for those products according to customers’ diverse needs for energy.

Our gas turbines are developed by our own technology, with line–up for cogeneration up to 30 MW class, combined cycle up to 100 MW class, and emergency generator sets up to 4,800 kW class. We are active in various field of the world for distributed power supplies and emergency power supplies in case of natural disasters.

In addition, 5 MW class and 8 MW class green gas engines are also developed by our company, and are used for cogeneration, in–house power generation, distributed power generation and etc. Energy saving, energy cost reduction, and reduction of emissions with high efficiency of power generation and eco–friendly performance.

Both of gloss and gloss unevenness are important quality for printing paper. In addition, it is assumed that these optical refl ection characteristics are caused by paper surface topography. Therefore, it is important to build the mathematical model of paper surface topography to evaluate gloss and gloss unevenness. However, it is diffi cult to measure paper surface topography. Furthermore, it is diffi cult to make the mathematical model because it is irregular. In this paper, we propose a new method of mathematical modeling of paper surface topography based on the Perlin noise. To estimate paper surface topography, we assume that surface topography is expressed as the Perlin noise. The Perlin noise is a computer graphics drawing technique in recent years. It can generate irregular phenomena of natural world such as clouds, fl ames and water surface. These images are generated with a sense of natural by adjusting parameters. It is assumed that these optical refl ection characteristics are caused by paper surface topography. The parameters which decide about the Perlin noise model is derived from the measured statistical optical refl ection properties of paper. The statistical property of the surface normal distribution, that is BRDF （Bidirectional Refl ectance Distribution Function）, is acquired by the collimator optical system. The spatial frequency property of the unevenness is acquired by the telecentric optical system. We estimate the surface topography with this method and verify the validity of the proposed model. The optical refl ection characteristics of the surface topography generated by the proposed Perlin noise model were close to the actual optical refl ection characteristic of paper. It was confi rmed that it can explain the paper gloss phenomena well.