Ink jet recording sheet
 An ink jet recording sheet comprises a support carrying an ink-receiving layer, this layer comprising a hydrophilic polymer, preferably poly(vinyl alcohol) and a poly(vinylpyridine). The images formed using this sheet display good water fastness. 
Polaroid Corporation
Y Y B B B
Y10T Y10T B41M B41M B41M
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Yung T. Xiaojia Z. Michael S. Shawn P. Gerald P. Richard J. Kenneth J.
Chen Wang Viola Lambert Harwood, Jr. Murphy McCarthy