Recently, by amendment of the Law for Promotion of Utilization of Recyclable Resources (Recycling Law), the Paper Industry have become to have to develop the easy-recyclable products for the creation of a recycle-oriented society.
The Plan “Recycle 60”, that is, utilization rate of used papers will reach at least 60% by 2005 in Japan, is very difficult target. Because, Japan's utilization rate of recovered paper is 57% in 2000, is among top in the world, and utilization rate for paperboard is nearly 90%, which is in a saturation level. But in a paper segment, utilization rate is only a little over 30%. Therefore the achievement of “Recycle 60” depends on increase in utilization rate of recycled magazine for paper, especially for printing and communication paper.
In the field of recycled magazine, hot melt adhesives have been largely used because of excellent processability, but these hot melt adhesives have become to prevent paper recycling.
Therefore, in order to promote the “Recyclable Paper Products Development and Promotion Project” under the supervision of the Ministry of International Trade and Industry, Japan Federation of Printing Industries which was entrusted by Paper Recycling Promotion Center, has organized the “Research Committee for Recyclable Paper Products”, for the purpose of development promotion of easy-recyclable hot melt adhesives, and the committee has been reporting and researching the testing methods for easy-recyclable hot melt adhesives, and proposed the future trends.
In this paper, we will report the classification of adhesives for bookbinding, mechanism of adhesion, and consideration of suitable hot melt adhesives for recycling.
And also we will report the authorized convenient testing method (The First Stage Testing Method) to get an approval as Screenable Hot Melt Adhesives (EVA-based HMA) for paper recycling.
抄録全体を表示