The present invention refers to a manufacturing process of packing labels with Heat Transfer technology, wherein alphanumeric codes are sequentially applied over, between and/or under the layers of specific inks and varnishes which protect said area of eventual friction and wear to which they are subject during transportation, handling and productive tests.

The present invention is related to a multi-layer label product that comprises a shipment label in a first layer and a return label in a second layer along with complementary layers for properly bonding the first layer and the second layer in a multi-layer arrangement. The present invention further aims at improving the method by which a customer intends to make a product/order return by using the multi-layer label according to the present invention.