초록 ▼

A liquid etching composition comprising: (a) at least one etching agent precursor having an activation temperature of at least 400° C., at which temperature said precursor yields an active agent suitable for chemical etching of glass, said precursor present at a concentration of at least 2.5% w/w; (

A liquid etching composition comprising: (a) at least one etching agent precursor having an activation temperature of at least 400° C., at which temperature said precursor yields an active agent suitable for chemical etching of glass, said precursor present at a concentration of at least 2.5% w/w; (b) a binder; and (c) a liquid vehicle.

대표청구항 ▼

1. A liquid etching composition for inkjet printing comprising: (a) at least one non-active etching agent precursor, which is inactive with respect to chemically etching glass, the precursor comprising at least one alkali metal salt having an activation temperature of at least 400° C., wherein when

1. A liquid etching composition for inkjet printing comprising: (a) at least one non-active etching agent precursor, which is inactive with respect to chemically etching glass, the precursor comprising at least one alkali metal salt having an activation temperature of at least 400° C., wherein when heating the composition to the activation temperature, said precursor yields an active etching agent suitable for chemical etching of glass, said precursor present at a concentration of at least 2.5% w/w;(b) a binder comprising silica nanoparticles; and(c) a liquid vehicle,wherein the liquid etching composition is for inkjet printing. 2. A composition according to claim 1, wherein each of said at least one alkali metal salt is independently selected from the group consisting of a carbonate salt, a sulfate salt and a nitrate salt. 3. A composition according to claim 1, wherein said precursor includes at least one member selected from the group consisting of potassium carbonate, lithium carbonate sodium sulfate and lithium nitrate. 4. A composition according to claim 1, comprising a dispersing agent including dendritic polymers. 5. A composition according to claim 1, wherein said binder comprises polyvinylpyrolidone. 6. A composition according to claim 1, further comprising at least one pigment. 7. A liquid etching composition for inkjet printing comprising: (a) at least 2.5% w/w of a non-active etching agent precursor, which is inactive with respect to chemically etching glass, the precursor having an activation temperature of at least 400° C., wherein when heating the composition to the activation temperature, the non-active precursor yields an active etching agent suitable for chemical etching of glass;(b) a binder;(c) a liquid vehicle; and(d) an additive which decreases the temperature at which the non-active etching agent precursor yields the active etching agent,wherein the liquid etching composition is for inkjet printing. 8. A composition according to claim 7, comprising a dispersing agent including dendritic polymers. 9. A composition according to claim 7, wherein said binder comprises polyvinylpyrolidone. 10. A composition according to claim 7, wherein the binder comprises silica nanoparticles. 11. A composition according to claim 7, further comprising at least one pigment. 12. A liquid etching composition according to claim 7, wherein said additive includes at least one member of the group consisting of alkali metal silicates, alkaline earth metal silicates, alkali metal borates, metal oxides and non-metal oxides. 13. A liquid etching composition according to claim 12, wherein said alkali metal silicate includes at least one member of the group consisting of sodium silicate, potassium silicate and lithium silicate. 14. A liquid etching composition according to claim 12, wherein said alkaline earth metal silicate includes magnesium silicate. 15. A liquid etching composition according to claim 12, wherein said alkali metal borate includes at least one member of the group consisting of sodium borate and potassium borate. 16. A liquid etching composition according to claim 12, wherein said metal oxide includes at least one member of the group consisting of lead oxide, strontium oxide, barium oxide, calcium oxide, bismuth oxide, beryllium oxide, SnO and of SnO2. 17. A liquid etching composition according to claim 12, wherein said non-metal oxide includes boron oxide. 18. An etching method comprising: (a) inkjet printing a liquid etching composition comprising at least one agent precursor, at a concentration of at least 2.5% w/w, onto a glass surface to form a pattern, wherein the precursor is inactive with respect of chemically etching glass; and(b) firing said surface at a temperature above the 400° C. so that the precursor undergoes activation to yield an active agent which chemically etches the pattern on the glass surface. 19. A method according to claim 18, wherein said glass surface is an unmasked glass surface. 20. An ink jet printing cartridge containing a liquid etching composition according to claim 1. 21. An article of manufacturing comprising: a liquid etching composition according to claim 1;packaging material; andinstructions for use, said instructions specifying a temperature at which said non-active etching agent precursor is converted to said active agent suitable for etching glass.