Pressure seal roll product and apparatus and methods using the product to form mailers
AssigneeMoore Business Forms, Inc.
InventorPaul M. Cummings
Life of this patent
Estimating the term…
Abstract
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.
Claims8
A roll pressure seal product for forming mailers comprising:
- a roll formed of a paper web wound to form multiple plies;
- a pressure-sensitive adhesive applied to portions of at least one face of said paper web and arranged in a predetermined pattern for forming multi-ply mailers, said roll being wound under a predetermined web tension between about 1.5 to 3.0 lbs/lineal inch and having a weight sufficient to avoid adhesion of the pressure-sensitive adhesive between adjacent roll plies at said face portions.
Dependencies are inferred from the claim text.