초록 ▼

A support material comprises a raw paper that may be coated on at least one side with a synthetic resin, and the raw paper or the resin coating on the raw paper is provided at least on the front side with a pigment layer wherein the pigment layer contains at least about 5% by weight of a pigment wit

A support material comprises a raw paper that may be coated on at least one side with a synthetic resin, and the raw paper or the resin coating on the raw paper is provided at least on the front side with a pigment layer wherein the pigment layer contains at least about 5% by weight of a pigment with a narrow grain size distribution, whereby at least about 70% of these pigment particles feature a size of less than 1 μm and at least 40% by weight of these particles feature a grain size of 0.35 to 0.8 μm, or in that the pigment coating is a structured calcium carbonate, for example surface-modified, and both embodiments feature improved surface properties.

대표청구항 ▼

What is claimed is: 1. Support material for receiving a photographic, an ink jet or a thermal transfer image receptive layer thereon and coated on at least one side with a synthetic resin, said support material containing a raw paper provided at least on the front side with an image free pigment co

What is claimed is: 1. Support material for receiving a photographic, an ink jet or a thermal transfer image receptive layer thereon and coated on at least one side with a synthetic resin, said support material containing a raw paper provided at least on the front side with an image free pigment coating, wherein the synthetic resin which receives the image receptive layer thereon is a polyolefin resin on the image free pigment coating, and wherein the pigment coating contains at least about 5% by weight of a pigment having particles with a narrow grain distribution with respect to the weight of the total pigment in the pigment layer, whereby at least about 70% by weight of the pigment particles have a size of less than about 1 μm and at least 40% by weight of the particles have a grain size of 0.35 to 0.8 μm. 2. Support material according to claim 1, wherein the pigment is a calcium carbonate. 3. Support material according to claim 1, wherein the coating contains a pigment mixture which contains at least about 30% by weight kaolin. 4. Support material according to claim 1, wherein the application weight of the coating amounts to a maximum of about 20 g/m 2. 5. Support material according to claim 1, wherein the raw paper is a slightly compressed paper with a density of less than about 1 g/cm3. 6. Support material according to claim 1, wherein the synthetic resin is present in the amount of 5 to 30 g/m2. 7. Support material according to claim 1, wherein the roughness of the paper with the pigment coating is 0.5 μm or less. 8. Support material according to claim 1, wherein the pigment coating contains calcium carbonate which has a surface modified by an inorganic substance in platelet shape. 9. Support material according to claim 8, wherein the pigment coating contains a pigment mixture which contains at least about 30% by weight of clay. 10. The support material according to claim 8, wherein the synthetic resin is present in the amount of 5 to 30 g/m2. 11. Support material according to claim 8, wherein the proportion of the surface modified calcium carbonate pigment in the total amount of pigment amounts to at least about 5% by weight. 12. Support material according to claim 11, wherein the application weight of the coating amounts to a maximum of about 20 g/m 2. 13. Support material for an ink-jet image receptive layer comprising a raw paper provided at least on the front side with an image free pigment coating, a polyolefin resin for receiving the image receptive layer on the image free pigment coating, and wherein the pigment coating contains at least about 5% by weight of a pigment having particles with a narrow grain distribution with respect to the weight of the total pigment in the pigment layer, whereby at least about 70% by weight of the pigment particles have a size of less than about 1 μm and at least 40% by weight of the particles have a grain size of 0.35 to 0.8 μm. 14. Support material according to claim 13, wherein the pigment is a calcium carbonate. 15. Support material according to claim 13, wherein the coating contains a pigment mixture which contains at least about 30% by weight kaolin. 16. Support material according to claim 13, wherein the application weight of the coating amounts to a maximum of about 20 g/m 2. 17. Support material according to claim 13, wherein the calcium carbonate has a surface modified by an inorganic substance in platelet shape. 18. The support material according to claim 13, wherein the synthetic resin is present in the amount of 5 to 30 g/m2. 19. Support material according to claim 13, wherein the roughness of the paper with the pigment coating is 0.5 μm or less.