摘要：
A dry transfer decal is formed when a lithographic image is printed onto a transparent UV-dipped base sheet. Additionally, the decal includes opaque layers, a removable adhesive, and a release liner with a backing sheet. The lithographic decal provides an art-quality image, in a large format, which has vivid colors and precise graphic detail. The opaque background layers increase the brightness of the image colors and covers over any underlying logos when affixed to a display surface. The UV absorbing base layer reduces the strength of UV rays reaching the transfer image thus the decal resists fading even after prolonged exposure to sunlight. The base layer also prevents abrasion and scratching which is prone to occur in active environments.
权利要求：
CLAIMS
1. A dry transfer decal for affixing to a display surface, the decal comprising: a transparent base sheet having ultraviolet absorbing properties; a decal image comprising multiple ink layers printed onto a base sheet using lithographic printing techniques; an opaque layer adjacent to the decal image ink layers; a removable adhesive layer adjacent to the opaque layer; and a backing sheet, having a release layer, that when removed exposes a removable adhesive, thereby permitting the base sheet and ink layers to be attached to the display surface.
2. A dry transfer decal as defined in claim 1 , wherein the base sheet provides a scratch resistant protective layer for the decal image ink layers.
3. A dry transfer decal as defined in claim 1, wherein the decal image is produced with lithographic printing techniques to a resolution of at least 150 screen lines per inch.
4. A dry transfer decal as defined in claim 1 , wherein the base sheet is die- cut to provide an approximate one-fourth inch transparent base sheet border extending around the outer edge of the decal image.
5. A dry transfer decal as defined in claim 1 , wherein the decal image is produced with reverse-printing onto the base sheet.
6. A method of producing a dry transfer decal for affixing to a display surface, the method comprising the steps of: providing a transparent base sheet having an ultraviolet absorbing layer; printing multiple ink layers onto the base sheet using lithographic printing techniques, thereby forming a decal image; depositing one or more opaque layers adjacent to the decal image ink layers; depositing a removable adhesive layer adjacent to the opaque layers, thereby forming a self-adhesive dry transfer decal; and attaching a backing sheet having a release layer such that when the adhesive layer is exposed by removing the backing sheet the self-adhesive dry transfer decal can be attached to the display surface.
7. A method of producing a dry transfer decal as defined in claim 6, wherein the transparent base sheet provides a scratch resistant protective layer.
8. A method of producing a dry transfer decal as defined in claim 6, wherein the step of printing multiple ink layers comprises printing the ink layers with lithographic printing techniques to a resolution of at least 150 screen lines dots per inch.
9. A method of producing a dry transfer decal as defined in claim 6, further comprising the step of cutting the base sheet around the decal image to provide an approximate one-fourth inch transparent base sheet border extending around the outer edge of the decal image.
10. A method of producing a dry transfer decal as defined in claim 6, wherein the step of providing an ultraviolet absorbing layer comprises dipping the transparent base sheet in a UV-absorbing solution.
11. A method of producing a dry transfer decal as defined in claim 6, wherein the step of printing multiple ink layers comprises reverse-printing the ink layers onto the base sheet.
12. A dry transfer decal for affixing to a display surface, the decal comprising: a base sheet having one or more opaque layers; a decal image comprising multiple ink layers printed onto the base sheet using lithographic printing techniques; a releasable adhesive laid on the backside of the base sheet; a transparent cover sheet, having an ultraviolet absorbing layer; an adhesive layer that attaches the coversheet to the UV layer and a backing sheet, having a release layer, such that when the backing sheet is removed and the removable adhesive is exposed, the base sheet, ink layers, and cover sheet may be attached to the display surface.
13. A dry transfer decal as defined in claim 12, wherein the cover sheet provides a scratch resistant protective layer that protects the ink layers from abrasion.
14. A dry transfer decal as defined in claim 12, wherein the decal image is produced with lithographic printing techniques to a resolution of at least 150 screen lines per inch.
15. A dry transfer decal as defined in claim 12, wherein the base sheet is die- cut to provide an approximately one-fourth inch transparent base sheet border extending around the outer edge of the decal image.