Inkjet photo paper printing is a convenient and high quality method
It has now been discovered that an Inkjet photo paper receptive coating having good
water resistance (for both the coating as a whole and the ink absorbed into the coating) and good absorbency toward aqueous ink compositions of the type commonly used in Inkjet photo paper printers may be made by incorporating an alkoxy silane into a polyurethane (PU) alkyl cellulose (AC) binder. Surprisingly, the PU-AC binder is found to require significantly lower amounts of alkyl silane to render it water-insoluble than is the case for other commonly used binder systems. Consequently, the detrimental effect that alkoxy silanes can have on water absorption can be minimized, and ink receptive coatings can be made based on these materials which have both excellent water resistance and excellent ink absorption.
Inkjet photo paper printing is a convenient and high quality method