What determines the quality of the adhesive label printing? |
Views：623time Date：2017/10/10 |
| Due to the thick bottom paper label is mainly used for manual labeling, spraying machine die-cutting quality has certain effect on manual labeling, such as cutting, manual exhaust and label off together; if the backing sheet cut or cut in half, the operator is drawn also very difficult. Self-adhesive sticker printing requirements of the bottom paper flatness is good, high-pressure airless spraying machine thickness uniformity, transmittance is consistent, the density is bigger, the better, in order to facilitate the complete surface cutting. 1. opaque base paper: commonly used opaque base paper to color distinction, can be divided into two kinds of yellow and white; to structure distinction, divided into pre coated PE coating and without PE coating two kinds. Coating PE coating has two purposes: one is to seal the pores so that the paper surface is smooth, coated on the silicone oil, reduce the coating amount, the cost can be reduced; another role is to improve the cutting characteristics of PE coating, because the equivalent of a buffer layer, have certain toughness and elasticity, can reduce fracture the end of the paper. At the end of the paper opaque die-cutting machine die-cutting, airless spraying machine common fault fracture is the end of the paper, so the basis to ensure the precision die-cutting tool and gasket flat, as far as possible to choose flat bottom paper of good, uniform thickness and fiber tension, in order to improve the cutting quality. 2. translucent base paper: semi transparent base paper, also called thin backing paper. At present, self-adhesive printing is made of Guerra Sin Di paper (glass base paper). There are two indicators will affect the quality of die cutting: first, thickness uniformity, and the two is the fiber structure. The bottom sheet thickness uniformity is the most important, especially for rotary cutting, die-cutting knife roller size determined by the end of the paper thickness, if the paper thickness is not uniform, the blade will cut or cut the end of the paper, to exhaust process trouble. |
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