The decorative sheet and the substrate are integrated by vacuum-pressure forming or vacuum forming.
The present invention relates to vacuum forming thermoplastic films by using a porous female mold.
A vacuum forming mold (10) has a plurality of dies (28) with at least one die being movable with respect to the other dies.
The polymeric film can be formed by various processes, for example, vacuum forming or hydroforming methods.
The sheet is then thermoformed into a three-dimensionally shaped preform via vacuum forming or the like.
Both printed laminar and iso-planar lamps may be permanently reshaped using sheet forming techniques such as vacuum-forming or drape-forming.
For example, the most widespread method today is the vacuum moulding of pulp diluted in water.
The ribbon (20) is subsequently cut into individual pieces, which are then used to form three-dimensional articles by vacuum-forming or thermo-forming.
Also provided is process of producing a rigid pocket by a thermo-forming process or a non-rigid pocket by a vacuum-forming process.
Moreover, it is particularly satisfactorily possible by way of the present method to process foam materials by means of a vacuum moulding process.
Vacuum forming machines and stretching and forming apparatuses employing such a cooling system (502, 702), as well as a method of zone cooling, are disclosed, each of which provide for improved formed product quality.
A travelling mold tunnel (12) for the vacuum forming of profiled tube from extruded parison of molten thermoplastic material includes a plurality of parallel mold cavities (18) with a vacuum applied to each of the mold cavities.
The shaping process is a vacuum forming process that relies on controlling the vacuum pressure and deformation speed to produce a shaped preform with three-dimensional configuration.