As the application of self-adhesive labels becomes wider and wider, and the dosage is getting larger and larger, it is more and more important to correctly select the self-adhesive label materials. Label printing companies should consider label materials from multiple angles to prevent unnecessary losses caused by improper selection.
Choose materials based on the use of the sticker
Self-adhesive materials can be divided into permanent self-adhesive materials and removable self-adhesive materials. Once the former is labeled, it is difficult to completely remove it from the sticker, and the latter can be removed. A self-adhesive label that marks the size of the garment should be selected as a removable adhesive material. When the consumer purchases the garment, the use of these labels can be removed by the consumer.
Select materials according to the packaging material of the product being affixed
HDPE lubricant barrel labels should be made of PE materials as face materials. Because the properties of the same material shrinkage are very close, the label can be better attached to the surface of the barrel. If a paper-based self-adhesive material is used, bubbles will appear on the label. Wrinkling phenomenon. If a paper-based label material is selected, it is necessary to print varnish on the surface of the sticker or to cover the adhesive label from contact with moisture in the external environment. In addition, if the packaging material of the attached product is PVC, the self-adhesive label cannot select the hot-melt adhesive material. Because most of the hot melt adhesive materials will chemically react with the PVC material, the adhesive will gradually lose its viscosity and will be "oily" when it is severe.
Select materials based on the time at which the variable information is saved on the label
There are two types of variable information printing in self-adhesive label materials, one is thermal transfer printing paper and the other is thermal paper. Thermal transfer is a physical change and is relatively stable. Therefore, thermal transfer printing paper is usually used for a long time after printing, and the storage environment is relatively harsh (such as high temperature and high humidity environment). The surface of the thermal paper has a heat-sensitive coating that can be printed without the use of a ribbon to form variable information directly by heating. This way of forming graphics is a chemical change and is reversible under conditions of high temperature and high humidity, so thermal paper is usually used for situations where it does not need to be stored for a long time or the storage environment is relatively good.
Select materials according to the labeling speed of the labeling line
If the labeling speed of the automatic labeling production line of the enterprise is 300 bottles/min, the adhesive material of the ordinary base paper can not meet the requirements of the high-speed labeling production line on the strength of the bottom paper, and the paper break phenomenon will occur. The higher price PET material is a self-adhesive material for the backing paper. If the labeling speed of the enterprise automatic labeling production line is 100 bottles/min, then the self-adhesive material of the ordinary base paper can fully meet the requirements of use. At this time, it is not necessary to use the bottom paper as the PET self-adhesive material, which will result in Increased costs.
The above content is selected from the second volume of the “Printing Technology†of the Printing and Printing Media in 2013. For more journal content, please pay attention to the journal channel. The latest journal content clicks into the electronic journal channel of Keyin.com.
Apple Cutter,Fruit Slice,Fruit Cutter Set,Fruit Chopper Cutter
V-Boom's Industrial Co.Ltd , https://www.v-booms.com