Method of manufacturing an object of thermoplastics material having a decorative design

A method of manufacturing an object of thermoplastics material having a decorative design, said method comprising:

• printing said design onto a surface of a support using a transferable ink separable from said support in response to heating;
• introducing said support, after said printing, into a mould having the shape and dimensions of said object;
• introducing a separate film into the mould in a position to be applied against said printed surface of the support;
• and after introducing said support and said film, injecting said thermoplastics material into said mould at a temperature equal to or greater than its melting point;
• said introduction of said support being carried out so that, at least druing said injection, said support is applied against a wall of said mould with said printed surface turned facing the inside of the mould;
• said introduction of said film being carried out so that, at least during said injection, one surface of said film is applied against said printed surface of the support and the other surface of said film bonds itself to said thermoplastics material while the latter is at the temperature it has during said injection;
• and said transferable ink separating from said support and being deposited on and retained by said film in response to said ink being heated through said film by said injected thermoplastics material.