ENVELOPE FOR STORAGE IN ALBUM Russian patent published in 1996 - IPC

FIELD: household appliances. SUBSTANCE: envelope is a rectangular sheet of material. Margins with a line for folding into an envelope are located along one of the horizontal sheet edges and along vertical edges. Said edges are separated from the sheet by a row of perforations and have a glue-covered strip beyond the folding line. The horizontal margin is conjugated with the vertical margins by inclined lines passing through the point of intersection of folding lines of said margins and forming an inclined edge connected to which are additional sections of the material folded along these lines. There are additional rows of cuts along, and parallel to, the row of perforations on the horizontal margin. Said cuts form low-strength areas of material between these rows. One side of the sheet is intended for printed characters and two opening strips are glued to the low-strength areas. The folding lines on the margins are made in advance during preparation of the development by one-time folding followed by straightening into a sheet. EFFECT: convenience in handling and high strength. 4 cl, 9 dwg