Heat-transfer label and method of decorating polyethylene-coated

Details Heat-transfer label and method of decorating polyethylene-coated Heat-transfer label and method of decorating polyethylene-coated

1998-06-08

2000-08-01

Krynski, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

4284884, 428484, 428500, 428914, 428913, B32B 2714

Patent

active

060964081

ABSTRACT:
A heat-transfer label suitable for use in decorating polyethylene-coated glass articles. In a preferred embodiment, the label is capable of withstanding pasteurization conditions on a polyethylene-coated glass article and includes (a) a support portion in the form of a sheet of paper overcoated with a release layer of polyethylene, (b) a skim coat of wax overcoated onto the polyethylene release layer and (c) a transfer portion, the transfer portion including a cross-linked phenoxy protective lacquer layer printed onto the skim coat, a polyester ink layer printed onto the protective lacquer layer, a first adhesive layer printed onto the ink layer and onto any exposed portions of the underlying protective lacquer layer, and a second adhesive layer printed onto the first adhesive layer. The first adhesive layer preferably comprises an acrylic adhesive resin of the type present in a water-based adhesive dispersion or in a water-based adhesive emulsion and also comprises a surfactant in the form of dioctyl sodium sulfosuccinate. The second adhesive layer preferably comprises a chlorinated polyolefin of the type present in a water-based chlorinated polyolefin dispersion, such a dispersion having a pH at 25.degree. C. of 9-10 and containing 2-amino-2-methyl-1-propanol as a neutralizing amine, the water-based chlorinated polyolefin dispersion containing 20%, by weight, chlorinated polyolefin and 25%, by weight, total solids. The second adhesive layer preferably also comprises a thickener in the form of a polyurethane.

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Technical literature for Eastman CP 347W chlorinated polyolefin dispersion, Eastman Chemical Products, Inc., Kingsport, TN (Nov. 1997).
Technical literature for Henkel DSX 1514 polyurethane, Henkel Corp., Minneapolis, MN, published before the filing date of the present application.

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