Avery Dennison Corporation

Avery International Corporation

Philip Bonn Chandler

James P Rettker

William Edward Peterson

John Howard Lee

Thomas L Harrison

Stuart B Hunt

Permanent xerographic toner-receptive index divider

An index divider is reinforced using a polyester film having a bonding coating on one side thereof for bonding the polyester film to the index divider, and a toner-receptive polymer coating on the other side thereof. The toner-receptive coating may be N-Butyl Methacrylate polymer. Other polymers may be used, which have microscopic penetration points to bond with xerographic toner, and which maintain their integrity at the high temperatures and pressures used to bond the polyester film to the index dividers.

To provide a reinforced paper sheet which has curl-resistant edges so that it will not jam high-speed copier machines, the edges of the paper sheets are reinforced with very thin Mylar strips which are symmetrically mounted on both sides of the edge of the sheet of paper. The strips are preferably about one-half inch wide and may be mounted slightly back from the edge of the sheet of paper. In the manufacturing step, it is desirable that the two strips be applied precisely symmetrically, and preferably simultaneously, so that any stresses are equal and opposite on the two sides of the paper so that the paper resist curling. The Mylar strips may be very thin, such as one-half of a thousandth of an inch in thickness, and the adhesive may be a hot melt type of adhesive which is strictly confined to one side of the Mylar reinforcing strips.

Curl free reinforced paper sheet technique

Growing community of inventors

Tinley Park, IL, United States of America

Philip Bonn Chandler