Papermaking Technology
The Research Laboratory develops chemicals and technologies for the papermaking process (wet end), aiming to conserve resources and reduce environmental impact. We are expanding the use of recycled paper and ensuring the stable production of high-quality paper by utilizing online evaluation systems, new methods for assessing adhesive contaminants, proprietary de-inking technology, and fiber orientation control technology.
Development of Wet-End Technologies for Resource Conservation
To reduce our environmental impact, we promote resource conservation by reducing pulp consumption and increasing the use of recycled paper and calcium carbonate. The Research Laboratory is using equipment that can evaluate chemical performance and fiber condition in real time to develop chemicals and technologies for the wet-end papermaking process.
Expanding Use of Low-Grade Waste Paper Using a New Method for Evaluating Adhesive Contaminants
Low-grade waste paper often contains high levels of adhesive contaminants, such as those found in stickers. At the Research Laboratory, we use technologies such as fluorescent probes and a new technique developed in the field of biochemistry (the quartz crystal microbalance) to evaluate adhesive contaminants that have been broken down into fine particles during the waste paper recycling process. By using these technologies to efficiently control these contaminants, we aim to increase the use of low-grade waste paper.
Development of an Online Fiber Orientation Sensor and Fiber Orientation Control System
The structure of the paper sheet formed in the wire section of a paper machine determines the paper's fundamental properties. At the Research Laboratory, we developed technology that controls fiber alignment based on fluid dynamics, and we pioneered the development of an online fiber orientation sensor. By advancing these technologies, we have successfully developed a system that automatically controls fiber orientation. This groundbreaking technology enables consistent production of high-quality paper.
Improving Quality Through Detailed Profile Measurement and Analysis Technologies
We use paper profile measurement equipment to conduct detailed measurements and analyses of paper quality characteristics, such as basis weight and thickness, across the machine direction and cross-direction. Through precise laboratory evaluations, we identify quality issues that help improve product performance and resolve operational problems.
