Heterogenous cosmetic ink composition for inkjet printing applications
AssigneeThe Procter & Gamble Company
InventorsJanette Villalobos Lingoes, Thomas Elliot Rabe, Jeremy Chang, Ajay Suthar
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Abstract
A cosmetic ink composition comprises a particulate material, a polymeric dispersant having a weight average molecular weight of less than about 20,000 daltons, and a polymeric rheology modifier. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The cosmetic ink composition can undergo controlled syneresis, forming a weak colloidal gel phase and a particle-lean, low viscosity phase, which can be printed without interventions such as agitation, mixing, or re-circulation to homogenize the composition.
Claims10
A cosmetic ink composition comprising:
- a. from about 1 to about 30 active wt % titanium dioxide having a Particle Size Distribution D50 of about 100 nm to about 2,000 nm;
- b. a polymeric dispersant having a weight average molecular weight of less than about 20,000 daltons;
- and
- c. a polymeric rheology modifier;
- wherein the cosmetic ink composition has from about 0.1 to about 20 mm of separation after 11 days of static storage at 40° C., 1 atm, 60% relative humidity, in an 8-dram glass vial;
- wherein the separation is syneresis.
Dependencies are inferred from the claim text.