Mechanical embossing texture differentiation between chemically restricted areas and non-restricted areas
View Patent ↗Disclosed is a method of manufacturing a mechanically and chemically embossed surface covering having selectively textured surfaces. The method includes forming a web coated with a wear layer. The coated web is heated to a temperature at which the wear layer is cured, the foam layer expands, and the pattern is chemically embossed to form a surface covering having foamed regions and nonfoamed regions. The temperature gradient of the surface covering is adjusted such that there is a temperature gradient difference between the foamed and nonfoamed regions. A surface texture is then mechanically embossed into the wear layer and selectively set onto the wear layer substantially overlying the non-foamed regions.
1. An embossed surface covering comprising;
a foam layer, wherein the foamed layer has a foamed region and a substantially non-foamed region, and wherein the foamed region and substantially non-foamed region are selectively disposed in accordance with a pre-determined pattern;
a continuous wear layer overlying the foam layer, wherein the wear layer is substantially uniform in composition and wherein the melt viscosity of the wear layer overlying the foamed region is substantially the same as the melt viscosity of the wear layer overlying the non-foamed region; and
a continuous topcoat overlying the wear layer, wherein the continuous topcoat is the outermost topcoat and the cross-link density of the topcoat overlying the foamed region is substantially the same as the cross-link density of the topcoat overlying the non-foamed region and wherein the wear layer and the topcoat have an embossed surface texture set predominantly into the portion of the wear layer and the topcoat overlying the non-foamed region.
2. The surface covering of claim 1 , further comprising a design pattern overlying the foam layer, wherein the design pattern is substantially in registration with the pre-determined pattern, the wear layer overlying the design pattern.
3. The surface covering of claim 2 , wherein the area substantially overlying the non-foamed region exhibits a lower gloss than the area substantially overlying the foamed region.
4. The surface covering of claim 1 , wherein the area substantially overlying the non-foamed region exhibits a lower gloss than the area substantially overlying the foamed region.
5. The surface covering of claim 1 , wherein a chemical foaming inhibitor is selectively disposed substantially in registration with the pre-determined pattern.
6. The surface covering of claim 5 , further comprising a design pattern overlying the foam layer wherein the design pattern is substantially in registration with the pre-determined pattern.
7. The surface covering of claim 6 , wherein the area substantially overlying the non-foamed region exhibits a lower gloss than the area substantially overlying the foamed region.
8. The surface covering of claim 5 , wherein the area substantially overlying the non-foamed region exhibits a lower gloss than the area substantially overlying the foamed region.
9. An embossed surface covering comprising:
a foam layer, wherein the foamed layer has a foamed region and a substantially non-foamed region, and wherein the foamed region and substantially non-foamed region are selectively disposed in accordance with a pre-determined pattern;
a continuous wear layer overlying the foam layer, wherein the wear layer is substantially uniform in composition and wherein the melt viscosity of the wear layer overlying the foamed region is substantially the same as the melt viscosity of the wear layer overlying the non-foamed region; and
a continuous topcoat overlying the wear layer, wherein the continuous topcoat is the outermost topcoat, the topcoat is a thermoplastic topcoat and the cross-link density of the topcoat overlying the foamed region is substantially the same as the cross-link density of the topcoat overlying the non-foamed region and wherein the wear layer and the topcoat have an embossed surface texture set predominantly into the portion of the wear layer and the topcoat overlying the non-foamed region.
10. The surface covering of claim 9 , wherein the area substantially overlying the non-foamed region exhibits a lower gloss than the area substantially overlying the foamed region.