PRINTING ON PLASTIC: MATCH SUBSTRATE, INK, AND ADHESION TESTS
Editable planning/verification record — Yenra
Updated: October 2, 2026
Article: https://yenra.com/plastic-printing/

Purpose: Prepare a substrate-and-ink brief, agree on durability tests, and run a documented trial for adhesion, rub resistance, appearance, and converting.
Intended reader: Print buyers, packaging converters, and production engineers

HOW TO USE
Save a working copy. Enter the actual specification, units, assumptions and evidence references in each field. Preserve original observations and record changes. Have the responsible reviewer resolve missing or conflicting requirements before release. Examples below are fictional teaching inputs, not process settings or acceptance standards.

RECORD
1. Application, plastic resin/grade, additives/regrind, substrate lot and surface:
   ____________________________________________________________

2. Ink system/color/batch, supplier technical sheet revision and compatibility:
   ____________________________________________________________

3. Storage, cleaning and surface-treatment history with elapsed time:
   ____________________________________________________________

4. Wetting-test method, fluid condition, locations and measured result:
   ____________________________________________________________

5. Mixing/drying/curing instructions and actual recorded process:
   ____________________________________________________________

6. End-use exposure and agreed adhesion/rub/chemical/flex tests:
   ____________________________________________________________

7. Sample IDs, replicate count, control and trial changes:
   ____________________________________________________________

8. Conditioning time, test method, criteria and individual observations:
   ____________________________________________________________

9. Failures by location, retained specimens and follow-up investigation:
   ____________________________________________________________


WORKED EXAMPLE AND LIMITS
FICTIONAL: Under the same agreed adhesion procedure, 12 of 100 control cards and 3 of 100 candidate cards show the defined failure. Observed failure proportions are 12% and 3%, a reduction of 9 percentage points. These trial counts support further investigation, not a demonstrated long-run failure rate. Confirm comparable lots, conditions and repeat trials.

REVIEW
Prepared by / date: ____________________
Reviewed by / date: ____________________
Open issues, responsible owner, due date: ____________________
Approved next action and evidence: ____________________

SOURCE CONTEXT
These primary references support the linked article. Use exact applicable product, contract, and document versions for operational work.
Marabu's Mara Poly P technical data sheet
https://www.marabu-inks.co.uk/fileadmin/marabu-druckfarben/PDFs/Technical_Data_Sheets/P_TDS_V10_1024_PIM.pdf
Enercon's dyne-test guidance
https://www.enerconind.com/web-treating/corona-treaters/dyne-pens/

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