It is understood that the secondary printing processing of self-adhesive labels is mainly applied to small labeling devices with simple structure and few functions.
The general high-grade intermittent self-adhesive label feeding equipment is equipped with a secondary printing processing device for expanding its function. The wheel transformation labeling machine has many functions, and can change the printing specifications in combination, so the more complicated labels can be processed at one time.
Self-adhesive labels require secondary printing in the following cases:
1 increase the number of printing colors. Intermittent labeling machine (flat flat, round flattened), limited by the structure of the rubber roller, can print up to four colors, such as printing on the label requires printing more than five colors, must be printed twice: that is, after printing four colors at a time , again on the machine to print other colors.
2 increase the printing area. The paper width of the batch labeling machine is fixed. To increase the printing area of ​​the label, a large area of ​​rubber roller must be used (the general machine is equipped with four-color, three-color, two-color rubber rollers). The area of ​​the rubber roller is increased and the number of colors on the rubber roller is reduced. Therefore, in order to ensure large-area label printing, it is necessary to print twice or more times.
3 expand device features. Some simple labeling devices have fewer functions, such as hot stamping, die cutting, and punching. A set of platform stamping is required. To meet the various processing needs of the label, the web needs to be processed twice or more times at the same station to complete the whole process. Printing of the label.
4 Guarantee quality and reduce consumption. Multi-functional self-adhesive labeling equipment also often uses the method of secondary processing of labels, in order to ensure quality and reduce consumption. Due to the many functions of the rotary machine, any problem in the process will cause the label in the printing process to be invalid. Therefore, in order to ensure the printing quality of the label, some printers use the method of first printing and processing, and the web is processed twice. (Can be on your own machine or on two devices). Although the production efficiency is reduced, the overall consumption is reduced. Guaranteed quality and reduced costs.
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Label: the use of self-adhesive label secondary printing
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