| An integral part of barcode labeling, barcode label | | | | are generally classified into two groups: permanent and |
| adhesive is the substance or material applied to the | | | | removable barcode label adhesives. Most of the |
| back of a barcode label to attach it to the surface of | | | | barcode applications employ permanent barcode label |
| a particular item. A barcode label adhesive should be | | | | adhesives. A feature of this type of barcode label |
| of industrial grade and must have an apply | | | | adhesive is that it has a strong adhesion to a range of |
| temperature ranging from 40 °F to 250 °F. | | | | surfaces including paper, plastic, and stainless steel. |
| Shear, tack, and peel are among the properties that | | | | Permanent barcode label adhesives are generally used |
| are critical for barcode label adhesives. Shear | | | | for applications where removal is not required or |
| represents the measurement of an adhesive's internal | | | | necessary. |
| strength with which it attaches itself; shear is especially | | | | Removable barcode label adhesives are used for |
| important on curved surfaces. Adhesives with a low | | | | barcode applications where the label is temporary. |
| shear fall off easily, while high-shear adhesives do not. | | | | Common examples of removable barcode label are |
| Tack measures the ability of an adhesive to build an | | | | price tags affixed on costly consumer items. The |
| instantaneous bond with the surface on which it is | | | | apply temperature of removable barcode label |
| applied. Peel determines the force required to remove | | | | adhesives starts at around 40°F, which is higher |
| a label. | | | | than that of the permanent barcode label adhesives. |
| Barcode labels are available in a variety of adhesive | | | | For particular applications, barcode label adhesives are |
| backings, and the application of adhesives depends | | | | further sub-divided into acrylic, acid-free, |
| upon the type of surface and quality of label material. | | | | cold-temperature, high-temperature, pressure-sensitive, |
| The weight of the adhesive coat varies according to | | | | emulsion, food contact, silicone, solvent, rubber, and |
| the application requirements. Barcode label adhesives | | | | glove-friendly adhesives. |