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Troubleshooting DTF Printing Defects

Defects - Common Defects in DTF Film Root Cause Counter measures

Registration issues in colors

  • Some DTF film coatings have a high amount of silicones, making the rubber gripper slippery.
  • Low gripper pressure also leads to slippage issues.
  • Clean the rubber gripper with a brush and hand sanitizer for better grip.
  • Adjust or increase rubber gripper pressure in the machine.
  • Ultranex Film has a very low amount of silicone and does not slip in the gripper.

Ink flow during printing

  • DTF films with uneven coating or substandard quality.
  • Ink/film incompatibility.
  • Use pre & post printer heaters at 50 to 60°C.
  • Use compatible ink and film.
  • Ultranex DTF Film has a uniform coating and standard coating quality.
    It is compatible with most DTF inks.

Adhesive powder sticking to non-printed areas

  • High relative humidity.
  • Fine particles & moisture in adhesive powder.
  • Powder removal flaps position & speed not right in the shaker machine.
  • Static generation on the film surface.
  • Maintain relative humidity below 52%.
  • Use good quality adhesive powder and add a free-flowing additive.
  • Adjust & maintain the loop in the powder shaker.
  • Add a static eliminator in the powdering area. 
  • Ultranex DTF film has an antistatic coating.
    Use Ultranex Free Flow additive & PU Powder.

Oil on finished DTF labels

  • Extra amount of humectants like glycerine & glycols in DTF inks.
  • Low drying temperature and time.
  • Use inks with less humectants.
  • Dry at 110°C to 130°C approx set
    temperature machine. The surface
    temperature of the film should
    reach 160°C to 180°C for 2 to 4 minutes.
  • Ultranex Film can be used in high heat
    and for longer periods.

DTF label non-transfer

  • Low-quality film.
  • Low temperature, pressure, or time of transfer machine.
  • No powder adhesive on the printed label.
  • Too much oiling on DTF labels.
  • Use good quality film.
  • Transfer machine settings: Temperature
    140°C to 160°C, Pressure 2 to 4 bars, Time 8 to
    15 seconds. Check for even pressure
    at all corners.
  • Check the powder application process.
  • Dry or cure labels again.
  • Ultranex Film comes with 2-layer transfer
    technology for glitch-free transfers.

Disclaimer:

 

Recommendations and suggestions are as per our current state of knowledge of printing and manufacturing of Heat Transfer Labels or using Ultranex DTF films in various processes. The intention is purely to help or troubleshoot the issues encountered by the DTF label printers’ community. Ultranex DTF Film Manufacturer M/S Vama Prints & Technologies Pvt. Ltd. cannot accept or will not be liable for any claims of whatsoever of any kind. Companies or individuals should test suggested countermeasures only if they are beneficial and safe before implementing them in their manufacturing processes.

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