Decal for producing a decoration

Abstract

The present invention relates to a decal for producing a decoration, comprising a non-leafing pigment layer and a first protective layer, characterized in that the decal is designed so that the non-leafing pigment layer can be applied closer to a substrate that the first protective layer. Furthermore, the present invention describes a method for producing the decal as well as its use.

Claims

1. A decal for adhering to a substrate, the decal comprising from top to bottom: a paper including a coating of dextrin, a strippable layer, a first protective layer including a cross-linked epoxy or a cross-linked polyurethane, a non-leafing pigment layer including non-leafing pigments in a polymeric binder, and a second protective layer including a cross-linked polyurethane, wherein the paper is arranged over the strippable layer, wherein the coating of dextrin is arranged between the strippable layer and the paper, wherein the strippable layer is arranged over the first protective layer, wherein the non-leafing pigment layer is arranged between the first and second protective layers such that the first and second protective layers protect the non-leafing pigment layer from degradation, wherein the decal is designed so that when applied to the substrate, the non-leafing pigment layer is arranged closer to the substrate than the first protective layer; wherein the first protective layer includes a surface, and the surface has a roughness (Rz) of less than 0.4 μm; wherein the non-leafing pigment layer produces a mirror effect for the decal; wherein the strippable layer is removable from the first protective layer, wherein a thickness of the strippable layer is greater than a thickness of the first protective layer, and wherein a thickness of the first protective layer ranges 0.3-6 μm and a thickness of the strippable layer ranges 24-54 μm.

2. The decal of claim 1, wherein: the decal further includes a bonding layer for adhering the decal to the substrate; the second protective layer is arranged between the non-leafing pigment layer and the bonding layer; and the decal is designed so that the bonding layer contacts and adheres to the substrate.

3. The decal of claim 1, wherein the non-leafing pigment layer allows the decal to produce a gloss of at least 300 gloss units measured at 20°.

4. The decal of claim 1, wherein the first protective layer is at least 30% of the thickness of the non-leafing pigment layer.

5. The decal of claim 1, further comprising a colored layer, which is applied to the non-leafing pigment layer, so that the colored layer is arranged between the non-leafing pigment layer and the first protective layer.

6. The decal of claim 1, wherein the non-leafing pigments comprise at least one selected from the group consisting of aluminum pigments, brass pigments and gold bronze pigments.

7. The decal of claim 1, wherein the first protective layer is colorless and transparent.

8. The decal of claim 1, wherein the first protective layer is colored by a colorant or a pigment.

9. The decal of claim 2, wherein: the second protective layer is in direct contact with the non-leafing pigment layer; and the bonding layer is in direct contact with the second protective layer.

10. A method for producing the decal of claim 1, comprising (a) applying a non-leafing pigment layer to a first protective layer, and (b) drying the layers.

11. The method of claim 10, wherein the non-leafing pigment layer contains no solvent in which the first protective layer dissolves or swells.

12. The method of claim 10, further comprising, prior to (a), step (z), applying a strippable layer to the first protective layer.

13. The method of claim 11, further comprising, prior to (a), step (z), applying a strippable layer to the first protective layer.

14. The method of claim 12, further comprising, prior to (z), step (y), applying the first protective layer to a substrate comprising dextrin.

15. The method of claim 13, further comprising, prior to (z), step (y), applying the first protective layer to a substrate comprising dextrin.

16. A method of adhering the decal of claim 1 to a substrate.

17. The method of claim 16, further including applying a primer to the substrate before applying the decal to the substrate in order to improve adhesion of the decal to the substrate.

Description

EXAMPLE 1: PRODUCTION OF THE PROTECTIVE VARNISH (2-COMPONENT POLYURETHANE VARNISH)

(1) A first and a second solution with the following components are prepared and mixed.

(2) Solution 1:

(3) Acrylate copolymer 53.64 g

(4) Solvent naphta 18.39 g

(5) Ester (such as butyl glycol acetate) 4.6 g

(6) Surface additive based on polyacrylate (such as Byk 350) 0.77 g

(7) Surface additive based on polyacrylate copolymers (such as Byk 394) 0.38 g

(8) Polyether-modified siloxane (fluorine-free) to improve the substrate wetting 0.77 g

(9) The components are mixed

(10) Solution 2:

(11) HDI-Biuret 21.46 g

EXAMPLE 2: PRODUCTION OF THE METAL PASTE FOR SILVER-COLORED MIRRORS

(12) The following components are brought together, first of all dissolving the resin in the solvents and then the pigment suspension and the additive, while stirring.

(13) Resin (cellulose acetate butyrate) 4.5 g

(14) Ester (such as butyl acetate) 7.01 g

(15) Alkyl glycol 2.76 g

(16) Vacuum metallized aluminum pigment suspension 84.07 g

(17) Cross-linking and dispersing additive (such as Disperbyk 103) 4.76 g

EXAMPLE 3: PRODUCTION OF THE COLORED PROTECTIVE VARNISH (2-COMPONENT POLYURETHANE VARNISH)

(18) Two solutions (solution 3 and solution 4) are prepared and mixed shortly before application (e.g., silkscreen printing).

(19) Solution 3: solution 1 from example 1 is reacted with 1% Sudan yellow 373.

(20) Solution 4: identical to solution 2 of example 1

EXAMPLE 4: DECAL PRODUCTION FOR SILVER-COLORED MIRROR WITH 2K PROTECTIVE VARNISH

(21) A decal is produced by the following steps: 1. On decal paper Trucal, a strippable layer is printed with size 24 screen and dried at RT. 2. On this, the protective varnish from example 1 is printed with size 120 screen and dried at RT. 3. On this, the metal paste from example 2 is printed with size 120 screen and dried at RT. 4. On this, the protective varnish from example 1 is printed with size 120 screen and dried at RT. 5. Depending on the substrate, it may be necessary to use a primer to improve the adhesion, in the case of glass the 80 4515 or 80 4516 from Ferro. 6. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a shiny lemon gold preparation after baking. 7. In order to improve the adhesion, the decorated substrate may be tempered for 15 min at 60° C. The strippable layer is then stripped off.

EXAMPLE 5: DECAL PRODUCTION FOR GOLD-COLORED MIRROR WITH 2K PROTECTIVE VARNISH

(22) A decal is produced by the following steps: 1. On decal paper Trucal, a strippable layer is printed with size 24 screen and dried at RT. 2. On this, the protective varnish from example 3 is printed with size 120 screen and dried at RT. 3. On this, the metal paste from example 2 is printed with size 120 screen and dried at RT. 4. On this, the protective varnish from example 1 is printed with size 120 screen and dried at RT. 5. Depending on the substrate, it may be necessary to use a primer to improve the adhesion, in the case of glass the 80 4515 or 80 4516 from Ferro. 6. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a shiny gold or shiny lemon gold preparation after baking. 7. In order to improve the adhesion, the decorated substrate may be tempered for 15 min at 60° C. The strippable layer is then stripped off.

EXAMPLE 6: DECAL PRODUCTION WITH UV PROTECTIVE VARNISH

(23) A decal is produced by the following steps: 1. On decal paper Trucal, a strippable layer is printed with size 24 screen and dried at RT. 2. On this, the colorless variant of UV protective varnish L419 from Ferro is printed with size 120 screen and hardened under UV irradiation. 3. On this, the metal paste from example 2 is printed with size 120 screen and dried at RT. 4. On this, the Xpression series from Ferro of the 2K protective varnish is printed with size 120 screen and dried at RT. 5. Depending on the substrate, it may be necessary to use a primer to improve the adhesion, in the case of glass the 80 4516 from Ferro. 6. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a shiny platinum or shiny palladium preparation after baking. 7. In order to improve the adhesion, the decorated substrate may be tempered for 15 min between 60° C. and 160° C. 8. If tempering is done for 15 min at 200° C., the protective layer becomes yellow colored and one obtains a mirror similar to a mirror obtained with a shiny gold or shiny lemon gold preparation after baking.

EXAMPLE 7: PRODUCTION OF THE COLORED PROTECTIVE VARNISH

(24) TABLE-US-00001 Solution 5 Mixing by means of dissolver Acrylate copolymer 47.16 Solvent naphta 16.14 Ester (such as butyl glycol acetate) 13.84 Yellow colored pigment (such as Predisol Yellow 150) 1.82 Red colored pigment (such as Predisol Red 179) 0.61 Surface additive based on polyacrylate (such as Byk 350) 0.16 Surface additive based on polyacrylate copolymers (such as Byk 0.33 394) Polyether-modified siloxane (fluorine-free) to improve the substrate 0.33 wetting Solution 2 HDI Biuret 19.60
Solution 5 and solution 2 are mixed before the printing.

EXAMPLE 8: PREPARATION OF THE METAL PASTE SIMILAR TO EXAMPLE 2 (RESINS PREDISSOLVED IN THE SOLVENT)

(25) TABLE-US-00002 Resin (cellulose acetate butyrate)  3.84 g Resin (methyl methacrylate)  1.24 g Dowanol PM 25.34 g Ester (such as butyl diglycol acetate) 10.28 g Vacuum metallized aluminum pigment suspension 59.31 g

EXAMPLE 9: DECAL PRODUCTION FOR GOLD-COLORED MIRROR WITH 2K VARNISH

(26) 1. Strippable varnish 80 2070 (Ferro commercial product) is printed with a number 24 screen on decal paper (Trucal Plus 170) 2. Printing of the protective varnish from example 10 with a number 100 screen, let dry 2 days 3. Printing of the metal paste from example 12 with a number 120 screen 4. Printing of the protective varnish from example 10 with a number 100 screen 5. Primer 804515 is applied to glass 6. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a glossy gold preparation after baking. 7. The decal is tempered for 15 min at 60° C. The strippable varnish is then stripped off.

EXAMPLE 10: OPTIMIZED PROTECTIVE VARNISH, PREPARATION SIMILAR TO EXAMPLE 1

(27) TABLE-US-00003 Solution 6 Acrylate copolymer 54.15 g Solvent naphta 18.56 g Ester (such as butyl glycol acetate)  4.64 g Silicone-free defoamer  0.3 g Solution 2 HDI Biuret 22.35 g

(28) Solution 6 and solution 2 are mixed before the printing.

EXAMPLE 11: PROTECTIVE VARNISH SIMILAR TO EXAMPLE 8 BUT WITH CATALYST

(29) TABLE-US-00004 Solution 9 Acrylate copolymer 53.89 g Solvent naphta 18.48 g Ester (such as butyl glycol acetate)  4.62 g Silicone-free defoamer  0.3 g Zink-containing catalyst  0.5 Solution 2 HDI Biuret 22.22 g

(30) Solution 9 and solution 2 are mixed before the printing.

EXAMPLE 12: PREPARATION OF THE METAL PASTE SIMILAR TO EXAMPLE 2

(31) TABLE-US-00005 Resin (cellulose acetate butyrate) 1.42 g Ester (such as butyl glycol acetate) 7.07 g Ester (such as butyl diglycol acetate) 2.79 g Vacuum metallized aluminum pigment suspension 84.88 g 

EXAMPLE 13: DECAL PRODUCTION FOR SILVER-COLORED MIRROR WITH 2K VARNISH

(32) 1. Strippable varnish 80 2070 (Ferro commercial product) is printed with a number 24 screen on decal paper (Trucal Plus 170) 2. Printing of the protective varnish from example 11 with a number 100 screen, let dry 1 day 3. Printing of the metal paste from example 12 with a number 120 screen 4. Printing of the protective varnish from example 11 with a number 100 screen 5. Primer 804515 is applied to glass 6. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a glossy platinum preparation after baking. 7. The decal is tempered for 15 min at 60° C. The strippable varnish is then stripped off.

(33) Gloss measurement: 1124 GE

EXAMPLE 14: DECAL PRODUCTION FOR SILVER-COLORED MIRROR WITH 2K VARNISH

(34) 8. Strippable varnish 80 2070 (Ferro commercial product) is printed with a number 24 screen on decal paper (Trucal Plus 170) 9. Printing of the protective varnish from example 10 with a number 100 screen, let dry 4 days 10. Printing of the metal paste from example 12 with a number 120 screen 11. Printing of the protective varnish from example 10 with a number 100 screen 12. Primer 804515 is applied to glass 13. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a glossy platinum preparation after baking. 14. The decal is tempered for 15 min at 60° C. The strippable varnish is then stripped off.

(35) Gloss measurement: 997 GE

EXAMPLE 15: DECAL PRODUCTION FOR SILVER-COLORED MIRROR WITH 2K VARNISH

(36) 1. Strippable varnish 80 2070 (Ferro commercial product) is printed with a number 24 screen on decal paper (Trucal Plus 170) 2. Printing of the protective varnish from example 10 with a number 100 screen, let dry 1 day 3. Printing of the metal paste from example 12 with a number 120 screen 4. Printing of the protective varnish from example 10 with a number 100 screen 5. Primer 804515 is applied to glass 6. The decal is reverse applied and dried. One obtains a mirror similar to a mirror obtained with a glossy platinum preparation after baking. 7. The decal is tempered for 15 min at 60° C. The strippable varnish is then stripped off.

(37) Gloss measurement: 367

EXAMPLE 16: OPTIMIZED PROTECTIVE VARNISH, PRODUCTION SIMILAR TO EXAMPLE 1

(38) TABLE-US-00006 Solution 10 Acrylate copolymer 54.08 g Solvent naphta 18.54 g Ester (such as butyl glycol acetate)  4.64 g Silicone-containing defoamer  0.4 g Solution 2 HDI Biuret 22.25 g

(39) Solution 10 and solution 2 are mixed before the printing.

EXAMPLE 17

(40) TABLE-US-00007 80 4552 (Xpression 2K protective varnish, Ferro commercial 100 g product) 80 4553 (Xpression hardener, Ferro commercial product)  30 g

(41) The two preparations are mixed immediately before printing.

EXAMPLE 18

(42) Decal Production for Silver-Colored Mirror with 2K Varnish and 2K Xpression Protective Varnish

(43) 1. Strippable varnish 80 2070 (Ferro commercial product) is printed with a number 24 screen on decal paper (Trucal Plus 170) 2. Printing of the protective varnish from example 17 with a number 120 screen 3. Printing of the protective varnish from example 16 with a number 100 screen 4. Printing of the metal paste from example 12 with a number 120 screen 5. Printing of the protective varnish from example 16 with a number 100 screen 6. Primer 80 4515 is applied to glass 7. The decal is reverse applied, i.e., with the strippable layer as the top coat. Drying is then done. One obtains a mirror similar to a mirror obtained with a glossy platinum preparation after baking. 8. The decal is tempered for 15 min at 60° C. The strippable varnish is then stripped off.

(44) Gloss measurement: 635 GE

Comparison Example

(45) 1. Strippable varnish 80 2070 (Ferro commercial product) is printed with a number 24 screen on decal paper (Trucal Plus 170) 2. Printing of the protective varnish from example 17 with a number 120 screen 3. Printing of the protective varnish from example 16 with a number 100 screen 4. Printing of the metal paste from example 12 with a number 120 screen 5. Printing of the protective varnish from example 16 with a number 100 screen 6. Primer 804515 is applied to glass 7. The decal is applied with the strippable layer as the bottom coat and dried. One obtains a silver-colored, dull decoration. 8, The decal is tempered for 15 min at 60° C.

(46) Gloss measurement: 78 GE

(47) The examples show that excellent decals can be obtained with the present invention, resulting in a high metallic mirror effect, if the decals are designed according to the present invention, that is, being characterized in that the non-leafing pigment layer can be deposited closer to a substrate than the first protective layer. In this way, as is shown, the gloss effect can be boosted from 78 GE to 635 GE.