抄録
For a few years, there is a tendency in paper industry that saving energy, increasing the rate of waste paper applied and making paperboard light-weight are making progress. Besides, we have seen that higher operating speed of paper machine for the improvement of productivity, and higher closed rate on waste water treatment in the paper making system. On the other hand, we can see variety of needs and demanding higher quality for paper board coming from the market at the same time. In order for paper mills to cope with such requirements, considering the tendency on environmental issue above mentioned, it is required to improve the quality and application know-how of dry paper strengthening agent.
This is reported on the development of introduction and result of “Mix (anionic/amphibiatic PAM)” and its succeeding “Co-polymer of High-Density Dry Strength Agent” and described the summary.
