Process for producing engraved markings on a material in the manufacture of a flexible tube
AssigneeCebal
InventorsJacques Benquet, Bernard Schneider
Life of this patent
Estimating the term…
Abstract
A process for producing markings or lines engraved on a sheet or a tubular piece (6) made of plastic material or multi-layered metal-plastic material less than 1 mm in thickness, in which the sheet or piece (6) is gripped between a tool (1) bearing one or more marking contour(s) (2, 3) and a resilient support (9), in order to produce the engraved markings or lines. The sheet or piece (6) is at less than 50.degree. C. during the gripping stage, and in the resilient support (9) has a Shore hardness D of between 70 and 120, the markings or lines obtained being produced by plastic deformation with elastic return.
Claims19
A process for producing engraved markings (12, 13, 32, 61) in a piece (6;
- 20;
- 30;
- 40;
- 50) less than 1 mm in thickness and made of material comprising at least one layer of plastic, in which said piece (6;
- 20;
- 30;
- 40;
- 50) is pressed between a tool (1;
- 31) bearing at least one marking relief (2;
- 3;
- 33) and a resilient supporting means (9) for the purpose of producing said engraved markings (12, 13, 32, 61), wherein said piece (6;
- 20;
- 30;
- 40;
- 50) is at a temperature of less than 50.degree. C. during pressing, and said resilient supporting means (9) has a Shore hardness D of between 70 and 120, whereby said engraved markings (12, 13, 32, 61) are produced by permanent plastic deformation followed by elastic return of said material.
Dependencies are inferred from the claim text.