Adhesive label backside printing means to print designs and texts on the surface of self-adhesive material with printing ink or pigment. In general, there are two purposes for backside printing.
1. Images and texts backside printing
Print a few of texts or images on the surface of adhesive to form a double-sided label. The label is adhered to the transparent bottle of full of transparent liquid or glass, so the words on the label can be seen clearly through the transparent bottle or glass. In this way, it not only saves the stock of label and expense, but also has a decoration to these labels. Since labels have unique structures, so adhesive label backside printing also plays a role in anti-counterfeit
2. The covering of backside adhesive
Not all labels are covered with adhesive on their full backsides, and some of them just need to cover parts of their backsides. For example, seal labels, which are re-stickable and removable, without covering with adhesive on the finger contact area. Another example is the labels with back cuttings. These labels do not have glue on the backside for the convenience of peeling off the backing paper. To meet the above labels’ production requirements, printing manufactures adopt the printing methods to remove adhesive. For instance, they can cover the adhesive by printing ink to make these labels non-adhesive, which achieves the same effect with spot covering process while manufacturing raw materials.
Backside printing is suitable for short runs of labels which do not have a high demand in accuracy. If labels are demanded in large quantity, the texts and graphics on the labels’ backside should be printed on the stock before producing labels. As for the production of backside covering labels, we can first make special stock in the method of spot skipping coating while producing the stock, and then produce labels with this stock. In this way, we can dramatically improve labels’ quality and production efficiency.
The difference between bronze stamping and bronze printing
Many people may be confused by bronze stamping and bronze printing, especially the novices in printing industry. Bronze stamping and bronze printing are two different special crafts. Bronze stamping is hot stamping foils, which transfers the design or text on to the surface of stock mainly by heating or pressuring. A hot stamping machine is needed to carry out this processing. While bronze printing only needs to add a pure color into common 4 four colors. Another difference is that the print with bronze stamping has some concave and convex feeling and feels more like metal texture. But it may appear the falling off of the coating if there is a mistake in the operation.
The followings are some samples to make you have a better understanding about the difference of these two crafts