Ink jet recording sheet
AssigneePolaroid Corporation
InventorsYung T. Chen, Gerald P. Harwood, Jr., Michael S. Viola
Life of this patent
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Abstract
An ink jet recording sheet comprises a support carrying an ink-receiving layer, this layer comprising a mixture of a derivatized (preferably acetoacetylated) poly(vinyl alcohol) and a non-derivatized poly(vinyl alcohol). The ink-receiving layer preferably also comprises a poly(vinylbenzyl quaternary ammonium salt) and poly(vinylpyrrolidone).
Claims13
An ink jet recording sheet comprising a support carrying an ink-receiving layer, this ink-receiving layer comprising a non-derivatized poly(vinyl alcohol) and a derivatized poly(vinyl alcohol) in which at least some of the hydroxyl groups present in underivatized poly(vinyl alcohol) are replaced by ether or ester groupings, the weight ratio of the non-derivatized poly(vinyl alcohol) to the derivatized poly(vinyl alcohol) being in the range of about 2:1 to about 1:2.
An ink jet recording sheet comprising a support carrying an ink-receiving layer, this ink-receiving layer comprising:
- from about 20 to about 40 parts by weight of a non-derivatized poly(vinyl alcohol);
- from about 20 to about 40 parts by weight of an acetoacetylated poly(vinyl alcohol);
- the weight ratio of the non-derivatized poly(vinyl alcohol) to the acetoacetylated poly(vinyl alcohol) being in the range of about 2:1 to about 1:2
- from about 5 to about 15 parts by weight of an a poly(vinylbenzyl quaternary ammonium salt);
- from about 15 to about 30 parts by weight of poly(vinylpyrrolidone);
- from 0 to about 5 parts by weight of a poly(alkyl acrylate) or poly(alkyl methacrylate);
- and
- from 0 to about 1 part by weight of a surfactant.
Dependencies are inferred from the claim text.