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US 10,030,175 B2Granted
Opacifying label
AssigneeAvery Dennison Corporation
InventorDieu Dai Huynh
Life of this patent
Estimating the term…
Abstract
A multilayer label having an opacifying layer coated onto the back side of a paper facestock is provided. The opacifying layer prevents the paper from losing opacity when the label is subjected to wet conditions.
Claims20
A label composite comprising:
- a paper substrate having an upper print surface and a lower surface;
- an opacifying layer covering the lower surface of the paper substrate, the opacifying layer formed from a coating composition comprising (a) at least one water-dispersible aliphatic polyether-polyurethane;
- (b) at least one wax;
- and (c) about 0.3% to about 2% by weight of water dispersible silica particles;
- and
- an adhesive layer adhered to the opacifying layer;
- wherein the paper substrate is an outermost layer of the label composite;
- and
- wherein the silica particles have a surface area greater than 500 m2/g.
6 more elements
A label composite consisting of:
- a paper substrate having an upper print surface and a lower surface;
- an opacifying layer covering the lower surface of the paper substrate, the opacifying layer formed from a coating composition comprising (a) at least one water-dispersible aliphatic polyether-polyurethane;
- (b) at least one wax;
- and (c) about 0.3% to about 2% by weight of water dispersible silica particles;
- and
- an adhesive layer adhered to the opacifying layer;
- wherein the silica particles have a surface area greater than 500 m2/g.
4 more elements
A label composite comprising:
- a paper substrate having an upper print surface and a lower surface;
- an opacifying layer covering the lower surface of the paper substrate, the opacifying layer formed from a coating composition comprising (a) about 70% to about 98% by weight of at least one water-dispersible aliphatic polyether-polyurethane;
- (b) about 1% to about 10% by weight of at least one wax;
- and (c) about 0.3% to about 2% by weight of water dispersible silica particles;
- an adhesive layer adhered to the opacifying layer;
- wherein the silica particles have a surface area greater than 500 m2/g.
3 more elements
Dependencies are inferred from the claim text.