Environmentally Benign Pressure Sensitive Adhesive R&D Program, 1998 Recycling Symposium Proceedings
The main objective of the U.S. Postal Service’s (USPS) program for environmentally benign pressure sensitive adhesive (PSA) is to develop postage stamp adhesives that do not adversely affect the environment. The goal is to develop PSA stamp products that can be successfully recycled into fine paper products in a typical recycling facility. This paper (1) describes the amount and types of PSA products procured each year by the USPS, (2) presents the research and development efforts to date, and (3) explains the major efforts in material conversion, laboratory testing, stamp printing and finishing trials, mail processing, mill-scale recycling trials, proposed contaminate levels, and development of the final specification and approved product list for PSA stamp production.
Environmentally Benign Pressure Sensitive Adhesive R&D Program, 1998 Recycling Symposium Proceedings