Transfer paper for sublimation printing, comprising a cationic agent
The invention relates to transfer paper for sublimation printing, comprising a fibrous substrate, said transfer paper having one or more cationic agents on at least one face thereof, deposited on the fibrous substrate by means of surface treatment, the amount of cationic agent(s) being greater than or equal to 8% by dry weight of the total dry weight of the compound(s) added to the fibrous substrate by means of the surface treatment.
1. Transfer paper for sublimation printing comprising a fibrous substrate, the transfer paper having on a least one face one or more cationic agents, deposited by means of a surface treatment on the fibrous substrate, the quantity of the cationic agent or agents being greater than or equal to 8% by dry weight of the total dry weight of the compound or compounds furnished by the surface treatment on the fibrous substrate.
2. Transfer paper according to claim 1 , the quantity of the cationic agent or agents being greater than or equal to 9% by dry weight of the total dry weight of the compound or compounds furnished by the surface treatment on the fibrous substrate.
3. Transfer paper for sublimation printing according to claim 1 , having on at least one face at least 0.2 g/m 2 of one or more cationic agents, the transfer paper being free on this face from pigment, binder and formulation agents, or the transfer paper comprising on this face one or more pigments and/or binders and/or formulation agents in a quantity less than or equal to 13 times, in g/m 2 , the quantity of cationic agent(s).
4. Paper according to claim 3 , the transfer paper comprising on said face one or more pigments and/or binders and/or formulation agents in a total quantity less than or equal to 12 times, in g/m 2 , the quantity of cationic agent(s).
5. Transfer paper according to claim 1 , the cationic agent or agents being present on said face in a quantity greater than or equal to 0.2 g/m 2 of one or more cationic agents, the transfer paper being free on this face from pigment, binder and formulation agents, or the transfer paper comprising on this face one or more pigments and/or binders and/or formulation agents in a quantity less than or equal to 13 times, in g/m 2 , the quantity of cationic agent(s).
6. Transfer paper according to claim 1 , the transfer paper being free from mineral load at least on the face having the cationic agent or agents, or having on this face one or more mineral loads in a quantity less than or equal to 10 g/m 2 .
7. Transfer paper according to claim 1 , the transfer paper being free from binder at least on the face having the cationic agent or agents, or having on this face one or more binders in a quantity less than or equal to 8 g/m 2 .
8. Transfer paper according to claim 1 , the transfer paper being printable by inkjet printing.
9. Transfer paper according to claim 1 , the cationic agent or agents being organic cationic agents.
10. Transfer paper according to the claim 9 , the cationic agent or agents being chosen from epichlorhydrin polyamines.
11. Transfer paper according to claim 9 , the cationic agent or agents being present on said face in a quantity greater than or equal to 0.2 g/m 2 .
12. Transfer paper according to claim 1 , having a Bendtsen air permeability greater than or equal to 100 ml/min.
13. Transfer paper according to claim 1 , having a weight between 25 and 150 g/m 2 .
14. Manufacturing process for a transfer paper for sublimation printing according to claim 1 , in which a surface treatment deposits on at least one face of a fibrous substrate one or more cationic agents, the quantity of the cationic agent or agents being greater than or equal to 8%, in dry weight, of the total dry weight of the compound or compounds furnished by the surface treatment on the fibrous substrate.
15. Manufacturing process according to claim 14 for a transfer paper for sublimation printing, in which a surface treatment deposits on at least one face of a fibrous substrate one or more cationic agents, the treated face of the transfer paper comprising the cationic agent or agents in a quantity greater than or equal to 0.2 g/m 2 , the transfer paper being free, on this face, from pigment, binder and formulation agents, or the transfer paper comprising on said face one or more pigments and/or binders and/or formulation agents quantity less than or equal to 13 times, in g/m 2 , the quantity of cationic agent(s).
16. Manufacturing process for a transfer paper according to claim 14 , in which the fibrous substrate is manufactured and the surface treatment applied in-line or off-line.
17. Manufacturing process for a transfer paper according to claim 14 , in which the surface treatment deposits a composition comprising the cationic agent or agents on said face of the fibrous substrate.
18. Manufacturing process for a transfer paper according to claim 17 , the quantity of the composition deposited on the face of the fibrous substrate being between 0.2 and 15 g/m 2 by dry weight.
19. Manufacturing process for a transfer paper according to claim 17 or 18 , the surface treatment being applied using a size press, a film transfer press or a coating system.
20. Printed transfer paper for sublimation printing, comprising a transfer paper according to claim 1 and at least one print on the face of the transfer paper comprising the cationic agent or agents.
21. Printing process for a transfer paper for sublimation printing, in which the face comprising the cationic agent or agents of a transfer paper according to claim 1 is printed with at least one ink.
22. Process for decorating a support, wherein the printing on a transfer paper printed according to claim 21 is transferred to the support by sublimation.