Method and apparatus for the production of a planar cushioning material made of paper, and a cushioning material
OwnerFrank DOERMERinventor
Life of this patent
Estimating the term…
Abstract
An application mechanism is used to apply water to wet paper in a process for producing planar cushioning material and filler material made of paper having a spatial structure with embossing on each side. The water can be applied to the paper like ink, so as to keep it sufficiently moist for the embossing process. Likewise, it is possible to use ink to apply a two-dimensional imprint, whereby sufficient wetting can also take place, but at the same time an optical effect is achieved.
Claims24
A method for the production of a planar cushioning material made of paper, wherein the paper is wetted with a liquid, and, preferably in the form of endless paper (13), passed through between two embossing means of an embossing press (6), and the embossing means have elevations and cavities that alternate with one another, as embossing elements, which are complementary to one another, in each instance, in such a manner that the embossing means engage into one another as a matrix (7) and a patrix (8),
- wherein the wetting with the liquid takes place by means of an application mechanism (3), with which the liquid is applied or coated over the full area or in a surface pattern, in a step that precedes embossing.
An apparatus for the production of a planar cushioning material made of paper, comprising a paper feed that charges an embossing press (6) with the paper, preferably in the form of endless paper (13), wherein the paper is passed between two embossing means in the embossing press (6), which means have alternating elevations and cavities as embossing elements and are complementary to one another,
- wherein
- the embossing press (6) is preceded by an application mechanism (3) on which the paper can be wetted with a liquid, over its full area or in a surface pattern, wherein the liquid is ink or printing ink in one or more colors and water, or exclusively water.
A planar cushioning material having a paper structure, comprising a first paper layer embossed on at least one side, which has shaped, preferably spherical embossings,
- wherein the paper structure has at least one second paper layer embossed on at least one side, which is inextricably connected with the first paper layer, with the interposition of at least one adhesive substance layer.
Dependencies are inferred from the claim text.