Wallpaper and method for providing wallpaper
A reusable wallpaper and method for producing reusable wallpaper for removable attachment to a wall or ceiling surface with wallpaper paste. The wallpaper includes only a flat base layer without a paste coating applied by the manufacturer. The flat base layer is in the form of a textile, in particular synthetic fibers.
1. A wallpaper which can be detachably applied to a wall or ceiling surface with wallpaper paste, the wallpaper consisting of a single sheet-like base layer of a textile with no adhesive,
the base layer comprising a rear side for attachment to the wall or ceiling surface and a front side opposite the rear side,
wherein the base layer comprises a plurality of holes, each of the plurality of holes having a perforated structure that extends from the rear side to the front side, such that the base layer allows liquid adhesive applied to the front side to transfer to the rear side and spread onto the wall or ceiling surface, and such that liquid adhesive on the wall or ceiling surface dries through the plurality of holes into ambient air.
2. The wallpaper according to claim 1 , wherein the base layer is in the form of mesh fabric.
3. The wallpaper according to claim 2 , wherein the mesh fabric is configured:
with a treble stitch; and/or
in a single-yarn system, 2-yarn system or 3-yarn system; and/or
as a warp-knitted fabric; and/or
as a stitch-bonded fabric.
4. The wallpaper according to claim 1 , wherein the base layer is a non-woven.
5. The wallpaper according to claim 1 , wherein the base layer is a woven fabric.
6. The wallpaper according to claim 1 , wherein the base layer is made from at least 50% of a synthetic polymer comprising polyamide and/or polyacrylic and/or polypropylene and/or polyester.
7. The wallpaper according to claim 1 , wherein the base layer has a weight per unit area of less than 200 g/m 2 .
8. The wallpaper according to claim 1 , wherein the base layer is dimensionally stable in a state of the wallpaper wetted by the wallpaper paste present in a liquid and, resp., non-set state.
9. The wallpaper according to claim 1 , wherein the base layer is non-swelling as regards water and/or as regards the wallpaper paste present in the liquid and, resp., non-set state.
10. The wallpaper according to claim 1 , wherein the base layer has a longitudinally definable first elongation value at 100 N and/or a transversely definable elongation value at 100 N which is less than or equal to 25%.
11. The wallpaper according to claim 1 , wherein the base layer and/or a textile yarn thread of the base layer and/or a single textile filament of the base layer has/have a tensile and/or tear strength of more than 800 MPa.
12. The wallpaper according to claim 1 , wherein the base layer in a dried and, resp., set state of the wallpaper paste of the wallpaper attached to the wall or ceiling surface can be removed from the wall or ceiling surface almost or completely residue-free.
13. The wallpaper according to claim 1 , wherein the base layer has an internal void volume portion ranging from 20% to 60% or has a surface tension ranging from 18 to 55 mN/m.
14. The wallpaper according to claim 1 , wherein:
a first wettability by water and/or by a hydrophilic solvent of the wallpaper paste onto the wall or ceiling surface is better than onto the base layer; and
a second wettability by a disperse portion of the wallpaper paste onto the base layer is better than onto the wall or ceiling surface; and/or
the first and/or second wettability is/are configured so that a height of a paste gap of the wallpaper paste forming in the liquid and, resp., non-set state between the base layer and the wall or ceiling surface is less than or equal to 100 nm.
15. The wallpaper according to claim 1 , wherein the base layer is configured to be permeable to air in a dried and, resp., set state of the wallpaper paste applied to the base layer.
16. The wallpaper according to claim 1 , wherein at least 50% of the base layer are made from a biodegradable material and/or compound.
17. The wallpaper according to claim 1 , wherein each of the plurality of holes has an area of 0.2 to 2.0 mm 2 .
18. The wallpaper according to claim 17 , wherein each of the plurality of holes has an area of 0.3 to 0.8 mm 2 .
19. The wallpaper according to claim 1 , wherein the textile is a synthetic fiber.
20. The wallpaper according to claim 1 , wherein the passages comprise capillary liquid passages.