Why can printed labels keep the information intact in a humid environment?
Publish Time: 2024-12-31
As an important carrier of information transmission and identification, printed labels are widely used in various fields, including food packaging, electronic products, medical devices, etc. However, in a humid environment, the information on the label is easily damaged, such as blurring, fading, or even falling off.
First of all, the material selection of printed labels is the key. In a humid environment, substrates such as paper or plastic easily absorb moisture, causing the label to deform, swell or curl, thereby affecting the clarity of the information. Therefore, the selection of special waterproof and moisture-proof materials is the first step to keep the label information intact. These special materials are usually specially treated, such as laminating, coating with waterproofing agents, etc., to enhance their moisture resistance.
Secondly, the selection of printing inks is also crucial. Traditional inks are easy to dissolve or diffuse in a humid environment, resulting in blurred information. The use of waterproof, water-resistant or quick-drying inks can prevent moisture from eroding the ink to a certain extent. These inks usually have good adhesion and water resistance, and can maintain the clarity and readability of information in a humid environment.
In addition to the choice of materials and inks, the design and production process of printed labels also have an important impact on their performance in a humid environment. For example, when designing labels, processes such as lamination or varnishing can be used to improve the waterproof performance of the label surface. Lamination is to cover a layer of transparent plastic film on the surface of the label to form a protective layer, which effectively blocks the erosion of the label by moisture. Varnishing is to apply a layer of transparent oil film to make the label surface smoother and more wear-resistant, while enhancing the waterproof performance.
In addition, in the production process, printed labels also need to undergo strict drying and curing treatment. During the printing process, the ink needs to be fully dried and cured to ensure its adhesion and water resistance. If the ink is not completely dried or cured, it is easy to fall off or blur in a humid environment. Therefore, during the printing process, the temperature and time of drying and curing need to be strictly controlled to ensure that the ink is completely dried and cured.
Finally, printed labels also need to pay attention to moisture-proof during storage and use. When storing, a dry and ventilated environment should be selected to avoid contact with wet items. When using, try to avoid exposing the label to a humid environment for a long time to reduce the erosion of the label by moisture.
In summary, printed labels can keep information intact in humid environments, mainly due to the selection of materials and inks, as well as the optimization of design and production processes. By using special waterproof and moisture-proof materials and inks, as well as lamination, varnish and other processes, printed labels can maintain clear and readable information in humid environments, providing reliable protection for information transmission and identification in various fields.
