It has been determined that the cause is due to cured ink adhering to the printed surface of the printed PET film!
We will introduce a case study on fish-eye analysis of laminated film. In the multi-layer laminated film used for containers such as refillable shampoos, a part resembling a foreign substance was observed. Upon magnified observation, it appeared to be several tens of micrometers in diameter and looked like a fish-eye. To clarify the cause, a cross-sectional observation was conducted. There are various methods for preparing cross-sections, but we implemented a mechanical polishing method that allows for extensive observation. [Case Overview] ■ Background: Discovered a part that appears to be a foreign substance in the multi-layer laminated film ■ Objective: Conducted cross-sectional observation to clarify the cause ■ Cross-section preparation method: Implemented a mechanical polishing method that allows for extensive observation *For more details, please refer to the PDF document or feel free to contact us.
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【Cross-Section Observation Results】 ■ The results of the cross-sectional SEM observation revealed that there are areas where lump-like substances are trapped on the printed surface of the PET film, and bulges of aluminum foil were observed on the interior side. ■ The results of the magnified cross-sectional SEM observation confirmed that the lump-like substances are aggregates of the printing ink particles from the printed PET film. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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![[Data] Cross-section production method](https://image.mono.ipros.com/public/catalog/image/01/cfa/550895/IPROS35597836381814234211.jpeg?w=120&h=170)
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Aites was established in 1993, originating from the quality assurance department of the IBM Japan Yasu office. Based on the technical expertise cultivated through cutting-edge defect analysis and reliability assurance of electronic components at the IBM Japan Yasu office, we have provided various products and services that support the development and manufacturing of semiconductors, displays, organic EL, solar cells, and electronic components to customers both domestically and internationally.