What is the working principle of TTO high-speed coding carbon tape?

2025-07-06 14:42
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TTO high-speed coding carbon tape, full name Thermal Transfer Overprint carbon tape, its working principle is mainly based on thermal transfer technology. Here's a detailed explanation of how it works:


Overview of working principle

Through the action of heat and pressure, the ink layer information of the carbon belt is transferred to the printing medium such as soft film or label, so as to realize the accurate printing of text, bar code, image and other information.

Specific steps

1.Carbon tape preparation: TTO carbon tape usually consists of a multi-layer structure, including an ink layer, a PET film (polyethylene terephthalate film), and a back coating. The ink layer is the key part of the printing information, responsible for transfer; PET film as a carrier, determines the heat conduction performance; The back coating is used to protect the print head and enhance heat transfer.

2.Heating and pressure application: In the printing process, the print head of the TTO coding machine heats the carbon strip and closely fits the carbon strip with the printing medium (such as soft film, label, etc.) through a certain pressure.

3.Ink transfer: With the transfer of heat, the ink layer of the carbon belt begins to soften and adhere to the printing medium. Under the constant pressure of the print head, the ink layer is precisely transferred to the surface of the printing medium to form the desired information such as text, bar code or image.

4.Cooling curing: After the transfer is completed, the ink layer on the printing medium is quickly cooled and cured, ensuring the persistence and clarity of the printed information.

Technical characteristics

High-speed printing: TTO carbon tape supports high-speed printing operations, usually up to 40 inches per second or more, to meet the high-speed operation requirements of the production line.

High definition: Using advanced printing technology, TTO carbon belt can achieve high resolution, high definition printing effect, to ensure that the printing information is clearly visible.

Durability: It has good friction resistance and chemical resistance, so that the printed information can remain clear for a long time in harsh environments.

Wide adaptability: It can achieve high concentration and high quality printing effect on a variety of thin film materials to meet the application needs of different fields.

Application fields

TTO high-speed coding carbon belt is widely used in food packaging, pharmaceutical packaging, logistics labels, industrial product identification and other fields, for printing production date, shelf life, batch number, bar code, two-dimensional code and other important information.


To sum up, the working principle of TTO high-speed coding carbon belt is to accurately transfer the ink layer information of carbon belt to the printing medium through thermal transfer technology, so as to achieve high-quality and efficient printing output.