Packaging materials

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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Details

428204, 428205, 428343, 428355, 428422, 4284744, 428480, 428484, 428500, 428522, B05D 136, B32B 2708, C09J 702

Patent

active

048045730

ABSTRACT:
A packaging material for foodstuffs comprises a sheet material having on the rear face a water-based or water-borne cold seal adhesive applied thereto without a primer coat and on the front face a water-based or water-borne overprint varnish applied over the printed matter. The cold seal adhesive is applied to chosen areas of the rear face by conventional means and then dried.
The cold seal adhesive may suitably be a combination of one or more cohesive latex materials such as synthetic rubber emulsions or butyl or nitrile rubber emulsions but more particularly natural rubber latex, combined with a water-based or water-borne synthetic coating resin, particularly

REFERENCES:
patent: 4704163 (1987-11-01), Baratto et al.
patent: 4708907 (1987-11-01), Flutti et al.

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