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For the purposes of identifying and decorating products or packages, pressure-sensitive labeling is effective and efficient. With flexibility to adhere to most types of containers at speeds matching many products or packaging lines, the question isn’t whether or not to use a pressure-sensitive labeler, but which pressure-sensitive labeler is best for your product requirements? This labeler, also known as self-adhesive labeling, consists of a face stock material, coated on one side with an active adhesive—the face stock can be paper, plastic, foil, polyester, vinyl, or laminate. The label is carried on a silicone-coated backing paper or film to allow easy release on demand. Scanning for automatic application is simple and efficient with a translucent backing paper. The label adhesive can be permanent, removable, cold temperature-resistant, or water-soluble. With incredible possibilities, using pressure-sensitive labeling is an effective means of labeling a variety of products. In accordance with the characteristics of this labeling system, there are three basic methods of automatic pressure-sensitive label application including direct transfer, tamp, and air jet. Direct transfer takes place when the label is dispensed directly onto the package or product and rolled or wiped on as the product passes the labeler. With tamp application, the label is dispensed from the web backing and then held in position, on a tamp pad, by vacuum. Finally, air-jet application takes place when the label is dispensed completely from the backing web and held in position by vacuum, across the perforated front of an air box. With an understanding of the various characteristics and options available with a pressure-sensitive labeler, it is important to choose the right labeler for your industry needs. Label application systems are designed for unique applications. When this is necessary, there are several options to choose from including dual-web supply, multi-label, dynamic vacuum-wrap, and spreader applications. The dual-web supply applicators incorporate one application station supplied by labels from two independent web-drive supply systems. Multi-label applicators apply labels to ranks of products, while dynamic vacuum-wrap is a variation of the multi-label applicator, dispensing two labels onto a moving vacuum belt. And, the spreader labeler was developed for the simultaneous application of multiple labels. Each of the pressure-sensitive labelers works with a basic operation. This can be described as pulling the liner, with the labels on it, through the system. The labels are peeled off the liner at the peel tip. Then, they detach from the liner. When selecting pressure-sensitive labeling equipment, the optimum machine will depend on the capability of the machine matching the application requirements. Choose the best match for the size, shape, and material of the product and label. Do your products need a single or multi-purpose label? In selecting the equipment supplier, installation procedures, operator training, technical support, and after-sales service should be carefully considered. Plan ahead before you purchase a pressure-sensitive labeler. When you have a good understanding of your production needs, you can easily find the best labeling system for your applications.
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