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How to print on transparent tpu film
Transparent TPU film is a polymer material widely used in various fields. It has excellent transparency, weather resistance, wear resistance and tensile resistance. Printing on transparent TPU film can give it a richer appearance and function. The following are the steps and precautions for printing on transparent TPU film​:
2023-11-13
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How to print on transparent tpu film

Transparent TPU film is a polymer material widely used in various fields. It has excellent transparency, weather resistance, wear resistance and tensile resistance. Printing on transparent TPU film can give it a richer appearance and function. The following are the steps and precautions for printing on transparent TPU film:

1. Prepare transparent TPU film

Choose a TPU film with good transparency and flawless appearance, and clean its surface to remove grease, impurities, etc. You can use solvents such as alcohol or acetone to clean, and let it dry before use.

2. Choose printing technology

A variety of processes can be used for printing on transparent TPU films, such as heat transfer printing, screen printing, UV printing, etc. Different processes have different advantages and disadvantages, and the appropriate printing process should be selected according to specific needs and requirements.

3. Design printing patterns

Design exquisite printing patterns according to requirements, and use vector software to draw and modify them. Note that you should avoid using low-pixel images or vector images to avoid affecting the clarity and quality of the print.

4. Make printing version

To make the designed printing pattern into a printing plate, you can choose to use materials such as photosensitive glue or metal plates. Attention should be paid to controlling accuracy and quality during production to ensure the clarity and quality of printing.

5. Printing operation

Place the prepared printing plate on the surface of the transparent TPU film and use appropriate ink or paint for printing. Pay attention to controlling the printing pressure and speed to avoid problems such as uneven printing or bubbling.

6. Post-processing

After printing is completed, the transparent TPU film needs to be post-processed to enhance its appearance and performance. It can be processed using processes such as UV light curing, heat treatment, and coating. Note that the appropriate post-processing process should be selected according to specific requirements to ensure the final effect and quality.

In short, the printing on the transparent TPU film needs to go through multiple processes and processes, and there are many details that need to be paid attention to. Only through careful operation and processing can high-quality printing effects be obtained.

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TPU hot melt adhesive film vs anaerobic adhesive: "Scene flexibility" difference in automotive interior bonding
2025-09-11
​From the perspective of curing conditions, TPU hot melt adhesive film does not need to rely on special environments, while anaerobic adhesives are severely restricted by "auerobicity". The curing principle of anaerobic glue is to undergo polymerization under conditions of lack of oxygen and catalyzed by metal ions (such as iron and copper). If it is in an environment where air circulation or metal substrates are not available, the curing speed will be greatly slowed down or even unable to cure. In automotive interiors, most bonding scenarios are "open" (such as bonding the door panel skin to PP substrate, and the ceiling fabric to the sponge), the air can freely contact the bonding surface, and the substrate is mostly non-metallic (PP, ABS, fabric, etc.), lacking metal ion catalysis, and additional catalyst is required when using anaerobic glue, and the curing time is as long as several hours, which is difficult to meet the needs of industrial production. The TPU hot melt adhesive film only needs to be melted by heating (120-160℃) and can be cured after pressurization and cooling. It does not need to rely on the ambient oxygen concentration or the base material. It can be cured stably in open or closed bonding scenarios, and the curing time only takes a few dozen seconds to a few minutes, adapting to the fast-paced needs of the interior production line.
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