Self-adhesive labels, also known as self-adhesive labels, instant stickers, instant stickers, pressure-sensitive paper, etc., are made of paper, film or special materials as the fabric, the back is coated with adhesive, and the silicon-coated protective paper is used as the backing paper. Composite materials, and become finished labels after printing, die-cutting, etc. If the pH value of the fountain solution is too low, the POP ink will be emulsified. Will the different conductivity of the fountain solution affect the emulsification of the POP ink? Through the analysis of the conductivity of the fountain solution, we found that the "culprit" that caused the POP ink printed on the vacuum aluminized paper not to be well dried also has the factor of high conductivity. The reason is that the fountain solution The electrical conductivity is too high, which indirectly causes the excessive emulsification of the POP ink, which in turn affects the drying. This requires us to test the pH value and conductivity of the fountain solution in advance in daily production, put it on the agenda, and monitor it from various aspects to reduce the hidden danger that the POP ink cannot be dried well and ensure that Thorough drying of prints. Over the years, with the economic growth of our country, the fast-developing market of my country is filled with various commercial elements. The increasing demand of the self-adhesive label market has rapidly driven the industrialization of the self-adhesive label printing market. Some countries have built factories one after another to research and develop various and different types of label materials.

The development history of self-adhesive materials is also the development history of science and technology in this century. The current basic status of international self-adhesive materials is:

1. Fabrics: mainly paper and developing for various materials and special purposes, such as synthetic materials, anti-counterfeiting materials and transfer materials.

2. Adhesives: from solvent-based and hot-melt adhesives that pollute the environment to water-soluble emulsion adhesives that do not pollute the environment.

3. Coating technology: There are a variety of coating methods, the current development direction is from the traditional roller coating, scraper cloth to high pressure.

The problem of ink loss can reduce the output power of the UV lamp. The specific operation is the printing job of the general printing factory. The first few groups of colors in the color sequence are mostly logos or small characters. The required light is limited, and the UV lamp can be turned on and dried. , Do not over-irradiate high-grade, because the film material absorbs heat energy is limited, excessive irradiation will cause the film material to curl, deform and become brittle, and the ink adhesion will drop. The label in the printing market mainly refers to the printed matter used to identify the relevant instructions of its own products, and most of them are paper labels with adhesive on the back, but there are also some printed without glue, which can also be called labels For example, most of the beer labels are glue-free when printed. They are posted by the manufacturer by brushing the label glue. This is also called a label. Therefore, the label is not necessarily glued. Commonly known as self-adhesive labels, transparent self-adhesive labels are transparent labels or transparent self-adhesive labels.