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
OTIS Co., Ltd. is a manufacturer specializing in press processing and lamination of film and tape products. Under our slogan, "Micro Technology, Macro Impact," our mission is to create film and tape products that drive progress across every industry, with our outstanding press processing technology at the core, and to enhance the value of our customers' products. With our core manufacturing functions based in Okayama and a sales contact in Tokyo, we also operate overseas bases in Hong Kong, China (Qingdao and Dongguan), and Thailand. This global production network enables us to deliver consistent quality and a stable supply both in Japan and abroad. We have a proven track record across a wide range of industries, including smartphones and information devices, batteries and energy, EVs and automotive components, home appliances and amusement, and medical and healthcare. We take a proactive, solution-oriented approach from the prototype stage, even for difficult-to-process materials and components requiring high precision. In 2026, our company was featured in FORTUNE magazine, drawing attention both in Japan and internationally. If you are looking for a partner who can process your film, please feel free to contact us.
