What is the thermal reaction principle of BOPP thermal synthetic paper?

The thermal reaction principle of BOPP thermal synthetic paper is mainly based on the chemical reaction of heat-sensitive materials. Specifically, the principle of this thermal reaction can be summarized as follows:

Principle of thermal reaction

The thermal reaction of BOPP thermal synthetic paper is achieved by the layer of thermal sensitive material on its surface. This layer of heat-sensitive material usually contains thermic agents, which come in the form of microcapsules or dyes. When the print head is heated to a specific temperature, the thermosensitive agent in the heat-sensitive material layer rapidly undergoes a chemical reaction that causes a color change that forms an image or text on the paper.

Specifically, thermal reactions involve two main components:

1.Colorless dye (leuco dye) : This is a key component in the coating of thermal paper, which is colorless at room temperature. When stimulated by heat, the colorless dye will undergo chemical changes, ready to react with the color developer.

2.Color developing agent: Color developing agent is also an important part of the coating of thermal sensitive paper. After the colorless dye is stimulated by heat, the color developer will react with it to produce colored compounds, thus forming visible images or words on the paper.

Working process

When the thermal printer starts working, the print head is heated to a preset temperature and touches the heat-sensitive material layer on the surface of the BOPP thermal synthetic paper. With the transfer of heat, the colorless dye begins to react with the color developer to produce colored compounds. These colored compounds quickly spread and settle on the paper, forming a clear image or text.

Peculiarity

1.Immediacy: The thermal reaction is immediate, and once the print head heats up and touches the paper, a chemical reaction occurs quickly to form an image or text.

2.No ink or ribbon required: Unlike traditional inkjet or laser printing technologies, thermal printing does not use ink or ribbon, simplifying the printing process and reducing costs.

3.High clarity: Due to the rapid and uniform thermal response, high-resolution images or text can be formed on paper.

Matters needing attention

Although BOPP thermal synthetic paper has many advantages, the following points also need to be noted during use:

Avoid prolonged exposure to high temperature or humidity, so as not to affect the stability and printing quality of heat-sensitive coatings.

Storage should be kept dry and away from light to extend the shelf life of the paper.

Select the appropriate thermal synthetic paper type and specification according to the specific application scenario.

In summary, the thermal reaction principle of BOPP thermal synthetic paper is based on the chemical reaction of colorless dyes and color developing agents in the thermal sensitive material layer when heated. This principle gives thermal printing technology the advantages of immediacy, no ink or ribbon, and high definition.