Patent ID: 7276197

Claim:
Method for the back-moulding of sheets printed on their rear side with thermoplastic, in an injection-moulding device having mould cavity ( 1 ) with a wall ( 9 ) and an opposite wall ( 5 ), characterised in that the sheet ( 7 ) is place in the mould cavity ( 1 ) of the injection-moulding tool ( 2 ) in such a way that it is initially applied, before the molten plastic enters, with its edge ( 4 ) that meets the front of the melt ( 3 ) against the opposite wall ( 5 ) of the mould cavity ( 1 ), whereas the rest of the sheet is kept separated from the wall ( 9 ), and in that the part ( 6 ) of the sheet ( 7 ) that is separated from the wall ( 9 ) is pressed against the opposite wall ( 5 ) by the incoming melt front advancing in the mould cavity ( 1 ), the support of the sheet ( 7 ) being released the same time, so that the rest of the sheet ( 7 ) is also applied against the opposite wall ( 5 ) of the mould cavity ( 1 ).