How sensitive is BOPP synthetic label paper to temperature and humidity?

BOPP (Biaxially Oriented Polypropylene) synthetic label paper has a certain sensitivity to temperature and humidity, which is mainly due to its material properties and production process. The following is a detailed analysis of the sensitivity of BOPP synthetic label paper to temperature and humidity:

1、 Temperature sensitivity

High temperature impact:

High temperatures may cause chemical reactions in the thermal sensitive coating or printing ink layer of BOPP synthetic label paper, resulting in color changes or color fading. This fading phenomenon is particularly evident in high-temperature environments, as high temperatures accelerate the process of chemical reactions.

High temperature may also cause deformation, such as curling or expansion, of BOPP synthetic label paper, thereby affecting its flatness and usability.

Low temperature impact:

At low temperatures, the flexibility of BOPP synthetic label paper may decrease and become more prone to brittle cracking. This may result in cracks or fractures during printing, cutting, or pasting processes.

Low temperature may also affect the adhesion and drying speed of ink, thereby affecting the printing effect of labels.

2、 Humidity sensitivity

High humidity impact:

High humidity environments may cause BOPP synthetic label paper to absorb moisture, resulting in a damp surface. A damp surface may affect the adhesion and drying effect of ink, resulting in blurry or peeling printed patterns.

Long term exposure to high humidity environments may cause mold or decay in BOPP synthetic label paper, seriously affecting its service life and appearance.

Low humidity impact:

In low humidity environments, BOPP synthetic label paper may become too dry, leading to increased brittleness. This may also affect its flexibility and durability during use.

3、 Response measures

To reduce the impact of temperature and humidity on BOPP synthetic label paper, the following measures can be taken:

Control storage environment: Store BOPP synthetic label paper in a cool, dry, and well ventilated environment, avoiding prolonged exposure to high temperatures, high humidity, or direct sunlight.

Usage condition control: During use, attention should also be paid to avoiding direct exposure to high temperatures and strong light, especially during printing, cutting, or pasting, the temperature and humidity of the surrounding environment should be controlled well.

Choose high-quality materials: When purchasing BOPP synthetic label paper, products with stable quality and excellent performance should be selected to reduce the impact of temperature and humidity on its performance.

In summary, BOPP synthetic label paper has a certain sensitivity to temperature and humidity. In order to maintain its good performance and appearance, appropriate storage and usage measures need to be taken to control the effects of temperature and humidity.