What is the viscosity of BOPP thermal sensitive synthetic paper?

The adhesion of BOPP thermal sensitive synthetic paper is an important performance indicator, which directly affects the adhesion and durability of the label. The following is a detailed analysis of the viscosity of BOPP thermal sensitive synthetic paper:

1、 Basic characteristics of viscosity

The viscosity of BOPP thermosensitive synthetic paper is mainly determined by its coating material and production process. High quality BOPP thermal synthetic paper usually has moderate viscosity, which can firmly adhere to various surfaces and easily peel off when needed without leaving any residue.

2、 Factors affecting viscosity

Temperature: Temperature is an important factor affecting the viscosity of BOPP thermosensitive synthetic paper. At high temperatures, the viscosity may decrease, causing the label to easily peel off; At low temperatures, the viscosity may increase, but it may also make it difficult to peel off the label.

Humidity: Excessive or insufficient humidity can affect the viscosity of BOPP thermal sensitive synthetic paper. Excessive humidity may cause the label to absorb water and deform, affecting the adhesion effect; If the humidity is too low, it may cause the label surface to dry out and the viscosity to weaken.

Surface material: The material applied to the surface can also affect the adhesion of BOPP thermosensitive synthetic paper. For example, a smooth surface may require higher adhesion to firmly adhere, while a rough surface may require lower adhesion to avoid damaging the label during peeling.

Storage conditions: Long term storage and improper storage conditions (such as high temperature, high humidity, direct sunlight, etc.) may affect the viscosity of BOPP thermosensitive synthetic paper.

3、 Testing method for viscosity

For the viscosity testing of BOPP thermal sensitive synthetic paper, the following methods can be used:

Peel strength test: Stick a small piece of BOPP thermosensitive synthetic paper onto a smooth surface, and then quickly peel it off with force. Determine its viscosity based on the resistance during peeling. If a certain amount of force is required for peeling and it is not easy to peel off, it indicates that its viscosity is high.

Observation method: Stick BOPP thermosensitive synthetic paper onto a smooth surface and observe whether it can firmly adhere and maintain for a period of time. If the label can adhere firmly and is not easily detached, it indicates that it has high adhesion.

Texture method: Touch the surface of BOPP thermal sensitive synthetic paper with your fingers to feel its stickiness. If the surface has a certain viscosity and the fingers can feel a certain resistance, it indicates that it has a certain viscosity.

4、 How to ensure the viscosity of BOPP thermal sensitive synthetic paper

Choose high-quality products: When purchasing, choose a BOPP thermal synthetic paper brand with good quality and good reputation to ensure that it has good adhesion.

Pay attention to storage conditions: Store BOPP thermosensitive synthetic paper in a dry, ventilated, and dark environment to avoid moisture, heat, or light exposure that may cause a decrease in viscosity.

Choose the appropriate surface material: Select the appropriate BOPP thermosensitive synthetic paper based on the material of the surface to be pasted, to ensure that it can adhere firmly.

Proper use of printer and printing settings: Follow the printer manual to use the printer correctly and avoid improper operation that may cause paper damage or reduced stickiness.

In summary, the viscosity of BOPP thermosensitive synthetic paper is a complex and important performance indicator, which is influenced by multiple factors. By selecting high-quality products, paying attention to storage conditions, choosing suitable surface materials, and using printers correctly, measures can be taken to ensure that BOPP thermal synthetic paper has good adhesion.