Reduced cost fluorescent coated posterboard
OwnerRichard J. Repeckiinventor
Life of this patent
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Abstract
Colored posterboard and particularly fluorescent colored posterboard is economically produced by utilizing a paperboard substrate of all or substantially all recycled materials with a first base coat on each side of the paperboard substrate. The base coat includes clay and a binder and is applied to smooth out surface irregularities and substantially cover darker mottled coloration of the substrate. The one or more base coats do not require the color pigments but may include whiteners. A top coat including color pigment, is applied at a low coating rate of 3 to 5 lbs over the base coat such that the posterboard has good coloration without high expense of color pigments. The saving is greatest when using fluorescent pigments.
Claims17
A colored posterboard comprising:
- A) a paperboard substrate having a thickness in the range of 0.008-0.020 inches;
- B) at least one base coat including clay and a binder applied to at least one side of the paperboard substrate at a coating weight sufficient to substantially fill and smooth surface irregularities of the paperboard substrate and to substantially cover dark or mottled coloration of the paperboard substrate;
- and
- C) a top coat applied over the base coat at a coating weight of 3-7 lbs, the top coat including clay, binder, and color pigments in sufficient amount to provide an evenly colored surface of the posterboard.
Dependencies are inferred from the claim text.