Recording transparency and method
AssigneeXAAR Limited
InventorJurgen M. Kruse
Life of this patent
Estimating the term…
Abstract
A recording transparency and method of preparing the same from water solution are disclosed. The transparency is receptive to a wide variety of inks and other indicia, exhibits rapid ink drying times, excellent dot size and shape retention, and excellent water resistance and stability. The transparency comprises a transparent substrate coated from an aqueous solution of a polymeric sorbent selected from synthetic transparent cellulosic polymers, especially one or a mixture of hydroxyethyl cellulose polymers, and a surfactant composition comprising nonionic detergent, anionic detergent and complexing agent.
Claims48
A recording transparency comprising:
- (a) a substantially transparent substrate having a hydrophilic surface;
- and
- (b) a substantially transparent hydrophilic coating applied to said surface by coating said surface with an aqueous coating solution followed by evaporation of the water from said solution, said solution comprising a polymeric sorbent dissolved in water and a multi-component surfactant composition comprising a nonionic detergent, an anionic detergent and a complexing agent, said polymeric sorbent being selected from transparent synthetic cellulosic polymers other than hydroxyethyl cellulose polymers and the concentration, average molecular weight and molecular weight distribution of said polymeric sorbent being selected such that said coating solution has a viscosity so as to be readily coatable on said surface and said coating provides a desired high rate of sorption and drying of indicia applied thereto.
A recording transparency comprising:
- (a) a substantially transparent substrate having a hydrophilic surface;
- and
- (b) a substantially transparent hydrophilic coating applied to said surface by coating said surface with an aqueous coating solution followed by evaporation of the water from said solution, said solution comprising a polymeric sorbent dissolved in water and a multi-component surfactant composition comprising a nonionic detergent, an anionic detergent and a complexing agent, said polymeric sorbent consisting essentially of at least one hydroxyethyl cellulose polymer and the concentration, average molecular weight and molecular weight distribution of said polymeric sorbent being selected such that said coating solution has a viscosity so as to be readily coatable on said surface and said coating provides a desired high rate of sorption and drying of indicia applied thereto.
A method of forming a recording transparency comprising the steps of:
- (a) providing a substantially transparent substrate having a hydrophilic surface;
- and
- (b) applying a substantially transparent hydrophilic coating containing a polymeric sorbent to said surface by coating said surface with an aqueous coating solution of said sorbent followed by evaporating the water in said solution, said solution comprising a polymeric sorbent dissolved in water and a multi-component surfactant composition comprising a nonionic detergent, an anionic detergent and a complexing agent, said polymeric sorbent being selected from transparent synthetic cellulosic polymers other than hydroxyethyl cellulose polymers and the concentration, average molecular weight and molecular weight distribution of said polymeric sorbent being selected such that said coating solution has a viscosity so as to be readily coatable on said surface and said coating provides a desired high rate of sorption and drying of indicia applied thereto.
A method of forming a recording transparency comprising the steps of:
- (a) providing a substantially transparent substrate having a hydrophilic surface;
- and
- applying a substantially transparent hydrophilic coating containing a polymeric sorbent to said surface by coating said surface with an aqueous coating solution of said sorbent followed by evaporating the water in said solution, said solution comprising a polymeric sorbent dissolved in water and a multi-component surfactant composition comprising a nonionic detergent, an anionic detergent and a complexing agent, said polymeric sorbent consisting essentially of at least one hydroxyethyl cellulose polymer and the concentration, average molecular weight and molecular weight distribution of said polymeric sorbent being selected such that said coating solution has viscosity so as to be readily coatable on said surface and said coating provides a desired high rate of sorption and drying of indicia applied thereto.
Dependencies are inferred from the claim text.