Labels were there even when there were not printing facilities around and governments, trading entities or important personalities had their labels engraved on to their mailing stuff or recording material in one way or another. Even these days, an organization seeking to get recognition or wants to stand out always goes for getting labels which almost always works in today's world of marketing and advertising and where striking labels always win the war for their owner companies.
With the introduction of printing technology i.e. from embossing stuff till the printing press, printed labels have always been there dominating the whole labeling philosophy as well as effectively transferring their importance from one generation of business to the other. If one looks at the label of Coca Cola in hot weather, an image of freshness and quenching thirst flashes in his mind with an almost definite urge to get one for himself right away. Similarly, if one gets an important official letter from an organization, he knows the importance of that document even before opening it by the printed label upon the received envelop. There are several other examples which could be quoted here about the same.
Keeping this into consideration, each organization very carefully chooses upon its labels and gets custom printed labels for the same purpose which serves their business and their intentions for dominating or competing in the market. It provides them with an opportunity to get a prominence amongst various other organizations in the market as there can be many offices running the same type of business but people tend to stick to certain labels for quality services or for quality products and materials.
It also implies upon famous individuals which get custom printed labels for themselves which are engraved upon their letterheads, their merchandise or anything associated to them. The printed label thus becomes one big medium of communication between that individual /organization and the rest of the world. This means the effectiveness of labels has never been stained and cannot be outdated at any instance. Today, it is really easy to get printed labels with the help of immaculate softwares which make it very simple.
on the other hand, custom labels are created by experts who keep everything related to the individual or the organization in mind for which they create those labels. A relationship of years is built between customers and companies through these custom labels which get engraved into the customers' minds because of the provided services or materials and products. For example, people know Black & Decker for their quality products and know that they would never compromise on quality.