Liquid toner-derived ink printable label
AssigneeMobil Oil Corporation
InventorsMichael D. Cleckner, George Forman Cretekos, Pang-Chia Lu, Robert Edward Touhsaent
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Abstract
A label stock structure comprising a liquid toner printable thermoplastic film is provided. The film is coated with an ethylene-acrylic acid copolymer based coating capable of electrostatic imaging with liquid toner. Optionally, the coating contains acrylic polymer. In a specific embodiment, the coating includes a major proportion of ethylene-acrylic acid and minor amounts of filler such as talc and silica. The coating can also include wax and/or pigment such as titanium dioxide. In a further embodiment, the carboxylate groups of the copolymer are neutralized with metal ions from Group Ia, IIa or IIb of the Period Table of the Elements, specifically, sodium.
Claims15
A printed label stock structure comprising:
- an electrostatically printed thermoplastic film comprising a biaxially oriented polypropylene substrate having an adhesive side and on at least one surface a coating of an aqueous emulsion having a solids content ranging from 1 to about 60 weight percent based on the entire weight of the coating composition for receiving toner derived from a liquid toner composition, the coating being applied to a final coating weight of about 0.1 to about 10 g/m.sup.2, the coating comprising (a) a copolymer derived from a carboxylic acid containing vinylic unsaturation;
- and (b) an antiblock/slip agent and having the toner composition electrostatically applied to the coated substrate.
Dependencies are inferred from the claim text.