1. The surface structure of the self-adhesive label sticker substrate.
Intuitively, a rough label surface requires a strong adhesive.
2. The surface shape of the labeling substrate.
The surface of the label substrate can be divided into flat and curved surfaces. If the label surface has a certain curvature (for example, the surface of a medicine bottle with a diameter of less than 3 cm), it may be necessary to have a good compatibility or a strong glue on the face paper. It is also necessary to choose materials with better flexibility and tensile properties, such as polyvinyl chloride. The flat surface is more suitable for the label material.
3. The cleanliness of the label surface.
Self-adhesive label sticker materials are more suitable for label substrates with clean, dry, grease-free and dust-free surfaces. (Any label needs to keep the surface of the object to be affixed dry, oil-free and dust-free, in order to achieve a better label effect).
4. The surface of the object to be affixed.
Because labels processed with self-adhesive materials can be affixed to the surface of various materials such as glass, metal, cardboard, and plastic. Plastics can be further divided into polyvinyl chloride and high-density polyethylene. Tests have shown that different label surfaces have a greater impact on performance. (Choose adhesives and materials with the same or similar chemical composition to bond with the adhesive)
5. The adverse effect of plasticization on the adhesive.
Sticker conditions-The viscosity of the sticker must be in cold, hot, wet or room temperature conditions.
Use environment-whether the self-adhesive label is exposed below freezing point, whether it is used outdoors, under high temperature, humidity or ultraviolet light, whether it is close to high temperature automobile engine.
6. Choice of sex and removability.
From the perspective of adhesive performance, it can generally be divided into two categories: sexual adhesives and removable adhesives. (Generally used for electronic machinery, such as electronic signs, typical: mobile phone battery signs, removable is generally used for food and personal care, such as wet tissue signs, fruit signs, clothing signs, etc.).