Abstract Method of making ornamental sheet material having a moving highlight pattern, by forcing together contoured surfaces of two pressing members, each having an array of relief elements in its contoured surface, all elements of each array being of the same shape and size and arranged in intersecting rows, with the rows of one member at an angle to the rows of the other. At least one member is deformed in response to the pressure between the members. A permanent impression is made of the surface of the deformed member. This impression may be made in one of the members itself. This permanent impression may then be used as a master to form an embossing roll for reproducing the pattern defined by the deformation.
The method as defined in claim 1, in which: a. said two elements are sheets of thermoplastic material; b. said pressing step comprises bringing the two sheets into direct contact with each other; and c. said step of making a permanent impression comprises heating said sheets while said contact is maintained, removing the heat and allowing the thermoplasitc sheets to set under pressure, said permanent impression being made in the sheets themselves.
Claim 2
Dependent Claim
45 words
The method as defined in claim 1, in which said step of making a permanent impression includes the placing of a sheet of deformable material between two members during said pressing step, so that the permanent impression is made in the sheet of deformable material.
Claim 3
Dependent Claim
25 words
The method as defined in claim 3, in which said members are cylinder, which are rolled together with the sheet of deformable material between them.