This technology divides the material into two different injection syringes, which make-up the Core and the Skin of the product, which are injected one at a time through the same injection point.
The Core is composed of the recycled material that will form the heart of the product, while the Skin, usually composed of the virgin material, will form the external coating. In this particular process the two materials are joined directly in the mould. The great versatility of Co-Injection is the ability to measure the insertion of the two materials and to control the perfect mixture for a perfect article without any imperfections. During this system the two materials are mixed only in the mould.
The Mono Sandwich technology obtains, as for Co-injection, excellent environmental and shape benefits, but differs in the production process of the articles.
In Mono Sandwich, in fact, the two materials undergo a similar division into Core and Skin, but are injected into the mould simultaneously and no longer one at a time.
Similarly, also in this technology it is possible to use one or both materials in recycled obtaining the same environmental results.
In this transformation, the two materials are mixed in the injection cylinder of the press.