Container for a consumable good, coated with antioxidant-containing layer
View Patent ↗The present invention relates to a container for a consumable good having an inner coating layer comprising an antioxidant other than resveratrol, and a process for preparing the container.
1. An unused container for a consumable good, wherein an inner surface of the unused container, before being filled with the consumable good, is at least partially coated with a coating layer comprising an antioxidant other than resveratrol selected from the group consisting of Vitamin E and catechin, wherein the concentration of the antioxidant differs through a cross-section of the coating layer in said unused container, and wherein the concentration of the antioxidant in the coating layer at or close to a surface of the coating layer facing the consumable good to be added to the unused container is lower than in sections of the coating layer further distanced from the surface of the coating layer.
2. The container according to claim 1 , wherein the coating layer comprises the antioxidant in a concentration of at least 0.0001 weight %, and
wherein the coating layer comprises the antioxidant in a concentration of at most 30 weight %.
3. The container according to claim 1 , wherein a thickness of the coating layer on the inner surface of the container is in the range of between about 3.5 to about 8.4 grams per square meter.
4. The container according to claim 1 , wherein at least one additional coating layer is present between the coating layer comprising the antioxidant and a container wall of the container.
5. The container according to claim 1 , wherein the antioxidant is in a concentration of at least 0.01 weight %.
6. The container according to claim 1 , wherein the container is made of aluminium and/or polymer material.
7. The container according to claim 1 , wherein the thickness of the coating layer on the inner surface of the container is in the range of between about 4.0 to 8.0 grams per square meter.
8. A process for preparing an unused container for a consumable good comprising:
a) providing the unused container comprising a container wall comprising an inner side facing an inner space of the container; and
b) before filling the unused container with the consumable good, providing a coating layer on the inner side of the container wall, wherein the coating layer comprises an antioxidant other than resveratrol selected from a group consisting of Vitamin E and catechin, wherein a concentration of the antioxidant differs through a cross-section of the coating layer and
c) wherein the concentration of the antioxidant in the coating layer at or close to a surface of the coating layer facing the consumable good to be added to the unused container is lower than in sections of the coating layer further distanced from the surface of the coating layer.
9. The process according to claim 8 , wherein step b) further comprises applying an uncured coating layer comprising an antioxidant to the surface of the container wall, and curing the uncured coating layer.
10. The process according to claim 9 , wherein the uncured coating layer comprising the antioxidant is applied to the surface of a container wall before or after the container is formed.
11. The process according to claim 8 , wherein the process further comprises filling the container with the consumable good.
12. The process according to claim 8 , wherein the coating layer comprises the antioxidant in a concentration of at least 0.0001 weight %, and
wherein the coating layer comprises the antioxidant in a concentration of at most 30 weight %.
13. The process according to claim 8 , wherein a thickness of the coating layer on the inner surface of the container is in the range of between about 3.5 to about 8.4 grams per square meter.
14. The process according to claim 13 , wherein the thickness of the coating layer on the inner surface of the container is in the range of between about 4.0 to 8.0 grams per square meter.
15. The process according to claim 8 , wherein at least one additional coating layer is present between the coating layer comprising the antioxidant and a container wall of the container.
16. An unused container for a consumable good, wherein an inner surface of the unused container, before being filled with the consumable good, is at least partially coated with a coating layer comprising an antioxidant other than resveratrol selected from the group consisting of vitamin A, beta-carotene, carotenoids, provitamin A, vitamin C, and vitamin E, wherein a concentration of the antioxidant differs through a cross-section of the coating layer and wherein the concentration of the antioxidant in the coating layer at or close to a surface of the coating layer facing the consumable good to be added to the unused container is lower than in sections of the coating layer further distanced from the surface of the coating layer.
17. The unused container of claim 16 , wherein the coating layer comprises the antioxidant in a concentration of at least 0.0001 weight %, and
wherein the coating layer comprises the antioxidant in a concentration of at most 30 weight %.
18. The unused container according to claim 16 , wherein a thickness of the coating layer on the inner surface of the container is in the range of between about 3.5 to about 8.4 grams per square meter.
19. The unused container according to claim 18 , wherein the thickness of the coating layer on the inner surface of the container is in the range of between about 4.0 to 8.0 grams per square meter.
20. The unused container according to claim 16 , wherein at least one additional coating layer is present between the coating layer comprising the antioxidant and a container wall of the container.