In-mould labels are nothing but printed polypropylene labels and it takes the shape of a container post that is directly injected in the mould. The overall process results in making the mould & labels get united together. There are three key process of moulding in mould labels and the most popular process is discussed below. Read it on & learn more. Inject Moulding- As the name suggests, it is a proven process where heated molten plastic is injected directly into the mould. This after cooling down takes the perfect shape of the mould or the container. The plastic polymers are fused in an automatic manner with the mould. It is shaped in such a manner that it becomes part of the product container.