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Flexo Trouble Shooting

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Flexo Trouble Shooting

  1. 1. FLEXOGRAPHY TROUBLESHOOTI NG Ir. Sugeng Endarsiwi, ST, MBA (Professional Engineer at PII) Pinhole, Adhesion, Blocking
  2. 2. The Contents: Pinhole A common issue with flexible packaging designs is the “pinholing” effect. It describes the uneven or incomplete ink distribution when printing a solid area, which leads to a loss of density and reduced color vibrancy.
  3. 3. PinholE
  4. 4. A common issue with flexible packaging designs is the “pinholing” effect. It describes the uneven or incomplete ink distribution when printing a solid area, which leads to a loss of density and reduced color vibrancy.
  5. 5. Adhesion, A property of a substance that describes its ability to stick to another material, either mechanically or chemically, as in the ability of a printing ink to adhere to the surface of a paper. Treat substrate if treatable, but do not over-treat; change to recommended ink type; and/or coating primer if possible.
  6. 6. Trapping is, a pre-press technique used to compensate for registration errors in lithographic printing and is the process of adding a slight overlap between adjacent areas of colour to avoid gaps caused by misalignment. Wax or slip aid in first down ink is excessive. second down ink is not compatible with first down ink.
  7. 7. blocking, as "an undesired adhesion between layers of materials placed in contact under moderate pressure and/or temperature in storage or use, usually occurs in a stack of printed material that is stacked prior to thorough drying." This can occur with single- or double-sided prints. Add a wax compound or silicone (if applicable) to formula structure. Wax/silicones will act as a release in the re-wind
  8. 8. Author: Sugeng Endarsiwi was born in Purworejo, Midst Java but when grow up live in Banten west java. 18 years working at overseas as Printing Ink Manufacturer. Vietnam for 13 years, and Malaysia for 4 years. During working overseas, He also has project to completed to Sri Lanka, Philippine, Thailand and Singapore. Graduated from Trisakti Printing Academy, Jakarta (ATGT), and Bachelor of Art as Industrial Engineering from UMB, Jakarta. Also, an Executive MBA graduated from Jesselton University college, Malaysia. Registered at PII (The Indonesia Engineer Institution), 2022 Chartered Management Association (CMA, HK SAR), 2022 Currently live in Tangerang, Indonesia after relocate from Malaysia since 2021. Email address: endarsiwi.sugeng@gmail.com

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