Self adhesive back printing is the abbreviation of self-adhesive back printing, which refers to the printing method of printing pictures and texts with ink or paint on the adhesive surface of self-adhesive materials. General back printing has two purposes:

①背面图文印刷。在粘合剂表面印刷少量的文字或图案，达到双面标签的目的。标签用在装有透明液体的透明瓶体上或玻璃上，通过透明瓶体或玻璃可清楚地看到标签上的文字说

① Back graphic printing. A small amount of words or patterns are printed on the surface of the adhesive to achieve the purpose of double-sided label. The label is used on the transparent bottle or glass containing transparent liquid. The text on the label can be clearly seen through the transparent bottle or glass

明，起到一个标签正反面两用的作用。既节省了标签材料和费用，又使商品具有特殊的装潢效果。由于标签结构的特殊性，所以背面印刷标签有一定的防伪作用。

The utility model has the functions of both front and back sides of a label. It not only saves label materials and costs, but also makes the goods have a special decoration effect. Due to the particularity of label structure, the back printed label has a certain anti-counterfeiting effect.

②背面粘合剂遮盖。某些标签背面不需要全部涂有粘合剂，只需部分涂布。如具有可重贴、可移除特性的封口贴标签，手指接触部位不需要有胶；某些有背切的标签，背切处为便于去掉底纸，不需要有胶。印刷厂为满足以上需要，用印刷的方法在要求去掉粘合剂的位置上印上油墨等，盖住粘合剂，使其不粘手，达到与原材料制造时局部涂布工艺相同的作用。

② Cover with adhesive on the back. Some labels do not need to be fully coated with adhesive on the back, but only partially coated. For example, there is no need to have glue on the finger contact part of the sealing label with the characteristics of re pasting and removal; For some labels with back cut, there is no need for glue at the back cut to remove the backing paper. In order to meet the above needs, the printing plant prints ink on the position where the adhesive is required to be removed by printing, covers the adhesive, and makes it non stick, so as to achieve the same effect as the local coating process during raw material manufacturing.

背面印刷适合小批量、要求精度不高的标签。如大批量生产，应从原材料制造上根本解决，如背面图文印刷，面料背面可预先印刷，然后再制造成标签材料。而背面遮盖标签，可在材料制造时，用局部漏涂胶的方法制作专用材料，用特种材料加工标签。这样可提高标签质量和生产效率。

The back printing is suitable for labels with small batch and low precision. In case of mass production, it should be fundamentally solved from the manufacturing of raw materials. For example, the back of the fabric can be pre printed and then manufactured into label materials. The back cover label can be used to make special materials and process labels with special materials during material manufacturing. This will improve label quality and productivity.

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