Method of making packaging material

Details Method of making packaging material Method of making packaging material

2005-02-22

2005-02-22

Beck, Shrive P. (Department: 1762)

Coating processes

Nonuniform coating

Applying superposed diverse coatings or coating a coated base

C427S265000

Reexamination Certificate

active

06858252

ABSTRACT:
An improved packaging material may include a substrate which is normally susceptible to permeation by substances such as oil or grease. A colorant layer may be applied to the outer surface of the substrate. The colorant layer may be of a color chosen to closely resemble or to overpower the appearance of a stain on the substrate which would otherwise be caused by the substances. In this manner, the colorant layer serves to mask the stain which would otherwise be caused by substances permeating through the substrate. A second colorant layer may optionally be provided over the first colorant layer to provide a uniform background of a desired color. Graphics, e.g, text and/or images, may then be applied to the first or second colorant layer in a conventional manner.

REFERENCES:
patent: 4521492 (1985-06-01), Allen
patent: 5609901 (1997-03-01), Geddes et al.
patent: 5989696 (1999-11-01), McCarthy et al.

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