Pressure seal roll product and apparatus and methods using the product to form mailers

摘要

The pressure seal product includes a roll of paper having a pressure-sensitive adhesive applied in a predetermined pattern to one or both faces of the paper web for forming mailers. The paper is rewound onto a roll with a tension and weight such that insufficient pressure is exerted for activating the pressure sensitive adhesive. The roll of paper with the pressure sensitive adhesive applied is fed into a printer for printing information on the paper web. The web is then passed through a cutter and a folder for folding the cut sheets into a mailer. The mailers are passed through a pressure sealer for applying pressure to the areas of the mailer containing the pressure-sensitive adhesive to activate the adhesive and secure the mailer.