How to achieve thermal printing on BOPP thermal sensitive synthetic paper?

The process of thermal printing on BOPP thermal sensitive synthetic paper mainly relies on its special material composition and thermal reaction principle. Here is a detailed explanation:

1、 Material composition

BOPP thermosensitive synthetic paper is mainly made of BOPP (biaxially oriented polypropylene) film as the substrate, and coated with a layer of colored thermosensitive material containing a thermosensitive agent. This layer of heat sensitive material is the key to thermal printing, and it contains chemical substances such as latent dyes (also known as colorless dyes) and color developing agents, which usually exist in the form of microcapsules or dyes.

2、 Principle of Thermal Reaction

Hidden dye: At room temperature, hidden dye is colorless and does not spontaneously develop color. This dye is one of the key components in thermal reactions.

Chromogenic agent: Chromogenic agents play a catalytic role in thermosensitive reactions and participate in color development reactions together with latent dyes.

Thermal sensitive coating: Thermal sensitive coating is formed by coating chemical substances such as latent dyes and color developing agents on the surface of BOPP film through a special process. This coating remains stable at room temperature and does not undergo color reactions.

When BOPP thermosensitive synthetic paper encounters a heated print head or other heat source, the temperature in the local area of the coating rapidly increases. High temperature causes the melting and chemical reaction of latent dyes and color developing agents. Under the catalytic action of the chromogenic agent, the structure of the latent dye changes, resulting in the appearance of color. As the temperature decreases, the color reaction is completed and the color is fixed on the paper, forming the desired image or text.

3、 Thermal printing process

Preparation: Select suitable BOPP thermal synthetic paper and thermal printer, ensure that the printer driver is up-to-date and compatible with the operating system.

Design printing content: Use professional printing software or graphic design software to create images or text that need to be printed. These software typically have rich features and flexible settings options to meet the personalized needs of different users.

Print settings: Before printing, it is necessary to set the parameters of the printer, such as resolution, printing speed, etc. High resolution print heads can more accurately control heating points, making printed images and text more delicate.

Print execution: Place BOPP thermal synthetic paper into the printer and execute the print command. The printer heats the print head to cause a chemical reaction on the coating on the thermal paper, resulting in the display of images and text.

4、 Precautions

Storage environment: Due to the reversible color reaction of thermosensitive materials, BOPP thermosensitive synthetic paper should avoid prolonged exposure to sunlight or high temperature environments during storage to prevent color fading.

Quality selection: Different brands and models of thermal paper may have differences in quality, and users should consider their specific needs when choosing.

In summary, BOPP thermosensitive synthetic paper has achieved thermosensitive printing through its special material composition and thermosensitive reaction principle. During the printing process, it is necessary to select the appropriate paper and printer, and set the printing parameters to ensure print quality.