(1) the surface of the label material is a key subject of strong, so the strength and hardness of a material surface, the area of strong degree and label and the thickness of materials and labels, so the use of soft film materials, due to the increase of its thickness, general control in more than 100 mu M. Thin paper materials, such as 60~70g/m2's labeling paper, generally do not fit into the big label, and suitable for processing into small labels, such as the price tag on the use of the price tag. The strong degree of the label will lead to a label when the label is not out, or label with the end of the roll, so that automatic labeling failure.

 

(2) the type of force is also called stripping force, which is the force when the label is out of the bottom of the paper. The type and thickness of the adhesive and the coating on the surface of the bottom paper are related to the type and thickness of the adhesive, and the environment temperature of the label is also related to the environment temperature. Away from the type of force is too small, the label is easy to drop in the delivery process (from the bottom of the paper); away from the type of force is too large, the label from the end of the paper is difficult, can not be out of the standard. Should be integrated control of the technical indicators, so that the type of force in a reasonable range.

 

(3) the end of the paper is also an important indicator of automatic labeling. Requirements of the end surface of paper coated with silicon uniform, consistent with the type of force; uniform thickness, good tensile strength, to ensure that the label does not break; uniform thickness, good transparency, to ensure that the correct identification of the location of the sensor.

 

(4) the processing quality requirements after cutting the bottom paper on both sides of smooth, no break, avoid tension changes when the backing sheet fracture. Die cutting to avoid cutting through the bottom paper or destroy the coated silicon layer, the base paper and coated silicon layer is damaged easily breaking the bottom paper inside the tag into the adhesive backing sheet, not a standard base paper and tear phenomenon. In addition, before the label to eliminate the roll of paper tag inside the static, because the electrostatic will cause the label does not appear when the label is not allowed