Press punching and bubble-free processing of substrate-free double-sided tape, such as OCA, which is difficult to process and highly transparent.
The adhesive used for the display portion of mobile phones and smartphones directly affects the display's performance, and therefore it is required to be: - Optically uniform and transparent - Free from adhesive failures such as peeling or bubbling - Dimensionally stable under various usage environments Materials that meet these requirements include sheet-like substrate-free adhesive tape (OCA) and liquid UV-curable resin (OCR). OCA has advantages such as excellent processability and uniform film thickness, ensuring a consistent thickness and no overflow from the application area. However, if the punching process is poor, it can lead to issues such as OCA overflowing from the edges or the separator peeling at the ends, resulting in poor adhesion. Additionally, during the punching process with a press machine, issues like wrinkling of the OCA or linear bubbles may occur. However, based on our extensive experience in processing various functional materials, we can minimize such defects and achieve precise shape processing. Our company has numerous achievements in shape processing materials that could not be handled by conventional press manufacturers, thanks to our unique blade condition setting and analysis technology. If you are having trouble with the processing of films or resins, please feel free to contact us.
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basic information
We own 3, 5, 8, 25, and 35-ton press machines, with the 5-ton and 8-ton machines primarily in operation. 5-ton press machine QDC specification: 180 Processing dimensions: Maximum 180×150mm Speed: Maximum 300 shots per minute (spm) 8-ton press machine QDC specification: 200 Processing dimensions: Maximum 200×200mm Speed: Maximum 170 shots per minute (spm) Both the 5-ton and 8-ton press machines have a proven accuracy of 38 microns at the bottom dead center under certain conditions, with processing accuracy of ±0.05 to 0.2 mm (0.1 mm PET). The equipment, including press machines, is manufactured in-house, allowing for rapid customization. By combining press machines, laminating machines, and image inspection machines, it is possible to produce products on a single line. Even if the processing conditions do not match the above specifications, customization may be possible, so please feel free to inquire.
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Applications/Examples of results
Press processing of OCA used in displays such as smartphones.
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Company information
Our company is an electronics parts manufacturer that specializes in die-cutting functional materials such as films, double-sided tapes, and cushioning materials. Among these, smartphone components have been adopted by all domestic manufacturers and some overseas, currently accounting for 70% of our total sales and becoming our flagship product. There are many die-cutting manufacturers around the world, but our significant strength lies in the fact that we design and develop most of our processing machines and molds in-house. This allows us to quickly introduce new products as needed, enabling us to respond swiftly to rapidly changing demands and smoothly accommodate specification changes for remodeling.
