| 摘要 |
A continuous partially preprinted, preglued form suitable for subsequent envelope construction comprises a single web partially preprinted on one side, having detachable marginal feed hole strips parallel with each longitudinal edge, and transverse marginal lines of perforations defining individual envelope forms with two transverse lines of perforations defining fold lines intermediate the marginal lines. On the side of the web opposite the preprinting, a first transverse adhesive strip is disposed immediately adjacent one of the transverse marginal lines and a second transverse adhesive strip is disposed parallel to the first transverse adhesive strip intermediate between that strip and the adjacent fold line. Two first aligned longitudinal adhesive strips lie parallel to one of the longitudinal edges adjacent a marginal feed hole strip with one adhesive strip extending between the transverse adhesive strips and the other extending between the transverse fold lines. Two second aligned longitudinal adhesive strips lie parallel to and coextensive with the first two longitudinal adhesive strips and spaced a predetermined distance therefrom, and a longitudinal line of perforations extends between the two transverse fold lines a predetermined distance from the other of said longitudinal edges. The web may then be variable printed on the preprinted surface, detached along the transverse marginal lines of perforations, folded and sealed to form complete envelopes.
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