What is the reason why the stickiness of self-adhesive label paper is reduced

The reasons for the reduction of stickiness of self-adhesive label paper can be summarized as follows:

Environment and temperature change:

Environments with high temperatures and humidity may affect the stickiness of the adhesive. Under high temperature and high humidity conditions, the adhesive may soften or deteriorate, thus reducing viscosity. According to some information, the appropriate temperature and humidity are essential to maintain the stickiness of the self-adhesive label.

Aging:

Self-adhesive label paper will gradually age during use, resulting in a decline in viscosity. Aging can be caused by factors such as UV exposure, oxidation, or chemical reactions. Prolonged exposure to sunlight or harsh environments can accelerate the aging process.

Pollution:

Contaminants such as oil, dust, and chemicals may be attached to the surface of the label, affecting the contact between the adhesive and the surface. Therefore, before using a self-adhesive label, it is very important to ensure that the pasted surface is clean and dry.

Improper material and selection:

If you choose an inappropriate surface material or adhesive, it may lead to insufficient viscosity. For example, some thin, soft surfaces may not be suitable for specific applications, and the selection of adhesives needs to be matched according to the specific use environment and requirements.

Paste time is too long:

In some cases, if the label is attached for too long, the adhesive may gradually lose its stickiness. This may be because the plasticizer, crosslinker and other components in the adhesive gradually penetrate the surface of the object, resulting in a change in the nature of the adhesive itself.

Poor storage conditions:

If the self-adhesive label is affected by temperature difference, humidity fluctuation, or improper stacking during storage, its viscosity may be damaged. Proper storage methods are crucial to keeping labels sticky.

To sum up, in order to maintain the stickness of self-adhesive labels, you need to select appropriate materials and adhesives, control the temperature and humidity of the use environment, avoid pollution, reasonably control the paste time, and ensure good storage conditions.