Claims
- 1. Paper provided with a coating composition comprising a pigment and an adhesive binder, the pigment consisting of a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 3, wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, and wherein at least 5% of the particles by weight, have an equivalent spherical diameter which is not less than 10 microns.
- 2. Paper as claimed in claim 1, wherein at least 40% of the particles by weight have an equivalent spherical diameter which in not less than 3 microns.
- 3. Paper provided with a coating composition comprising a pigment and an adhesive binder, the pigment consisting of a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixutures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 2, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 4. Paper provided with a coating composition comprising a pigment and an adhesive binder, the pigment consisting of a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 2, and wherein at least 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, the coating weight of the composition being less than 10 grams per square mater.
- 5. Paper as claimed in claim 4, wherein the coating weight of the composition is not greater than 9 grams per square meter.
- 6. Paper provided with a coating composition comprising a pigment and an adhesive binder, the pigment consisting of a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 2, and wherein at least 5% of the particles, by weight, have an equivalent spherical diameter which is not less than 10 microns, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, the coating weight of the composition being less than 10 grams per square meter.
- 7. Paper as claimed in claim 6, wherein the coating weight of the composition is not greater than 9 grams per square meter.
- 8. Paper provided with a coating composition comprising a pigment and an adhesive binder, the pigment consisting of a kaolinitic clay having a particle size range factor which is less than 3, and wherein not more than 5% of the particles, by weight, have an quivalent spherical diameter which is less than 0.25 microns, and wherein at least 5% of the particles by weight, have an equivalent spherical diameter which is not less than 10 microns.
- 9. Paper provided with a coating composition comprising a pigment and an adhesive binder, the pigment consisting of a kaolinitic clay having a particle size range factor which is less than 2 and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 10. A paper provided with a coating composition as in claim 9, wherein the coating weight of the composition is less than 10 grams per square meter.
- 11. A paper provided with a coating composition as in claim 10, wherein at least 5% of the particles, by weight, have an equivalent spherical diameter which is not than 10 microns.
- 12. Paper provided with a coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 1.5, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 13. Paper provided with a coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being talc, wherein the talc has a particle size range factor which is less than 3, wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, and wherein at least 5% of the particles by weight, have an equivalent spherical diameter which is not less than 10 microns.
- 14. Paper provided with a coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being talc, wherein the talc has a particle size range factor which is less than 2, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 15. Paper provided with a coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being talc, wherein the talc has a particle size range factor which is less than 2, and wherein at least 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, the coating weight of the composition being less than 10 grams per square meter.
- 16. A paper coating composition comprising a pigment and an adhesive binder, the pigment consisting of a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 3, wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, and wherein at least 5% of the particles by weight, have an equivalent spherical diameter which is not less than 10 microns.
- 17. A paper coating composition as claimed in claim 16, wherein at least 40% of the particles by weight have an equivalent spherical diameter which is not less than 3 microns.
- 18. A paper coating composition comprising a pigment and an adhesive binder, pigment consisting of a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 2, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 19. A paper coating composition comprising a pigment and an adhesive binder the pigment consisting of a kaolinitic clay having a particle size range factor which is less than 3, wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, and wherein at least 5% of the particles by weight, have an equivalent spherical diameter which is not less than 10 microns.
- 20. A paper coating composition comprising a pigment and an adhesive binder, the pigment consisting of a kailinitic clay having a particle size range factor which is less than 2, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 21. A paper coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being a layer lattice silicate selected from the group consisting of kaolinitic clays, talc, and mixtures thereof, wherein the layer lattice silicate has a particle size range factor which is less than 1.5, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
- 22. A paper coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being talc, wherein the talc has a particle size range factor which is less than 3, wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns, and wherein at least 5% of the particles, by weight, have an equivalent spherical diameter which is not less than 10 microns.
- 23. A paper coating composition comprising a pigment and an adhesive binder, substantially the whole of the pigment being talc, wherein the talc has a particle size range factor which is less than 2, and wherein not more than 5% of the particles, by weight, have an equivalent spherical diameter which is less than 0.25 microns.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7932458 |
Sep 1979 |
GBX |
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Parent Case Info
This application is a continuation, of application Ser. No. 427,424, filed Sep. 29, 1982 now abandoned, which is a continuation-in-part of application Ser. No. 188,089, filed Sep. 17, 1980, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
2524816 |
Lyons |
Oct 1950 |
|
3876443 |
Conley et al. |
Apr 1975 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1246778 |
Sep 1971 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Hagemeyer, R. W. (editor) Paper Coating Pigments, Tappi Monograph Series No. 38, Appleton, Wisconsin, Graphic Communications Center, 1976, pp. 178, 183-185. |
Continuations (1)
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Number |
Date |
Country |
Parent |
427424 |
Sep 1982 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
188089 |
Sep 1980 |
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