PGGU2 Marking and labeling systems materials
This category is specifically designed for manufacturers of label materials. Products in this category include blank label stock, laminating adhesives and overlaminates. These products are usually sold to label converters in bulk form for the purpose of creating printed labels.
Label converters who use Recognized PGGU2 materials can receive the benefit of the Recognition granted to the material manufacturer. The surfaces and exposure conditions for which the materials are suitable can be passed along to the converter when a Recognition of the printed label is established.
However, converters or end product manufacturers who purchase these Recognized materials do not automatically have a Recognized label system. It may be necessary to evaluate the compatibility of the printing inks with the particular materials as well as the compatibility of two or more Recognized products (for example, label stocks and overlaminates) that may have been purchased from different suppliers.
Inks are not covered independently under the Recognition program. Inks can only be part of a Recognition when applied to a specific label stock. In some cases, a material manufacturer may have had a particular ink evaluated by UL with a specific product or combination of products. The benefits of such testing can be passed along to the user of the label materials. Impact ribbon inks may also be included in the Recognition of the material. However, the user of PGGU2 products must document with UL which materials and inks are being employed to produce PGDQ2 labels.
