Hewlett-Packard Development Company, L.p.

Marisa Samoshin

Zhang-Lin Zhou

Rodney David Stramel

Yi-Hua Tsao

Eytan Cohen

Alex Trubnikov

Max Yen

Shimrit Rubin

Or Pinkesfeld

An example of a liquid ink includes a pigment dispersion, a polyurethane dispersion, a polytetrafluoroethylene wax emulsion, a co-solvent, and a balance of water. A particle diameter of a polytetrafluoroethylene wax in the polytetrafluoroethylene wax emulsion is less than 50 nm. Examples of the liquid ink may be incorporated into a thermal inkjet printing system.

Liquid ink containing polytetrafluoroethylene wax emulsion

The present disclosure is drawn to a photo active agent which includes a bisacylphosphinic compound in the form of an acid or salt having Structure I: where A and A' are independently aryl or from C2 to C8 lower alkyl; M is H, a monovalent cation, a divalent cation, or mixture thereof; n is 1 or 2; and q is 1 or 2. The photo active agent can be present in a composition that includes from 0.001 wt % to 5 wt % of a dialcohol phosphinic acid precursor or dialcohol phosphinic salt of the bisacylphosphinic compound of Structure I. 

Photo active agents

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San Diego, CA, United States of America

Marisa Samoshin