Qualification guide / coating to later print
Use this guide to plan a controlled A0126 coating-to-print trial on the actual substrate. It separates material and surface preparation, coating and drying, the subsequent ink and print step, the agreed evaluation, and the records needed before a production decision.
Qualification scope
A0126 is the catalogue-backed route for a uniform matte dry surface intended to remain receptive to subsequent printing. Its published material classes are paper, treated film, pearlized film, and verified synthetic materials, and its listed application processes are flexographic, gravure, roller, and offline coating. Select a route within that scope, use the actual substrate and coating side, and define the later printing process and ink before comparing results. This checklist supports a controlled trial; it does not guarantee suitability.
Identify paper, treated film, pearlized film, or the verified synthetic material by supplier, grade or description, lot, and side where applicable. Keep material from the trial because a result on one substrate does not approve another.
Where surface treatment applies, verify the intended coating side using the converter's current controlled method. Check that side for oil, silicone-related contamination, release residue, or other visible contamination before coating.
Choose flexographic, gravure, roller, or offline coating and record the actual delivery setup, line condition, speed, and drying or conditioning path used for the comparison. This guide does not supply a fixed process recipe.
Name the subsequent printing process, ink product or batch, print sequence, timing after coating, and the written comparison or acceptance method. Wetting, transfer, appearance, and adhesion are observations from the documented trial, not promised A0126 properties.
Qualification controls
| Validation stage | What to verify | Evidence to record | Decision boundary |
|---|---|---|---|
| Substrate identity and side | Confirm that the job uses paper, treated film, pearlized film, or a verified synthetic material within the published A0126 route. Mark the exact coating side where the material has different surfaces. | Material class, supplier and grade or description, lot, coating side, uncoated sample, and any accepted comparison material. | Do not transfer a result between material grades, lots, or sides without a controlled comparison. |
| Surface treatment and cleanliness | For a treated surface, verify the current treatment condition using the converter's controlled method. Inspect the coating side for oil, silicone-related contamination, release residue, or handling contamination. | Treatment method and date if known, current check and result, checked positions, cleanliness observations, and any difference between trial samples. | Treatment is one recorded input. It does not by itself establish later-print suitability, and this guide does not set a universal threshold. |
| Coating method and delivery | Use one of the listed routes—flexographic, gravure, roller, or offline coating—and document how the varnish reaches the actual substrate. | Coating method, delivery or metering identification, coverage area, actual line speed, A0126 product or batch reference if known, and every deliberate process change. | The catalogue does not establish one coating weight, equipment setting, or line speed for every job. |
| Drying and conditioning | Record the actual dryer or drying setup, line condition, cooling or conditioning used by the plant, and the elapsed interval before subsequent printing. Evaluate the coated surface after the defined step. | Drying setup, actual speed, observed condition at delivery, conditioning sequence, time to later printing, and labeled coated samples. | No fixed dryer temperature, dwell time, airflow, speed, or conditioning interval is supplied by this guide. |
| Subsequent printing and ink | Identify the later printing process, ink product or batch, print sequence, transfer setup, image area, and time after coating. Keep these inputs stable when comparing samples. | Print process, ink identification, sequence, transfer or delivery setup, print condition, timing, and an accepted later-printed reference when available. | A matte coated appearance does not prove compatibility with an unspecified ink or printing condition. |
| Adhesion, print result, and line confirmation | Agree the evaluation method and reference before testing. Compare the coated and later-printed samples under the same method, then repeat the selected direction in a limited line trial when the responsible plant team considers it appropriate. | Written method, conditioning and evaluation timing, accepted reference, sample labels, observations, one-variable change log, line-trial record, and retained results. | The result applies to the documented material and process. Actual adhesion and printing observations determine the job decision. |
Pre-trial checks
Qualification record
Information to provide
Provide the actual substrate, supplier and grade or description, lot, marked coating side, treatment information where applicable, and uncoated samples.
State whether the route is flexographic, gravure, roller, or offline coating, and share the delivery setup, actual speed, coverage, A0126 reference, and changes made during the trial.
Describe the actual dryer or drying setup, cooling or conditioning sequence, surface observation at delivery, and elapsed time before subsequent printing.
Identify the subsequent printing process, ink product or batch, sequence, transfer setup, image area, and when the later print step occurs.
Share the written comparison or acceptance method, accepted reference, labeled observations, one-variable change log, and uncoated, coated, later-printed, accepted, or failed samples.
Controlled trial path
Trial sequence
Related routes
FAQ
Paper, treated film, pearlized film, and verified synthetic materials are material classes, not interchangeable production surfaces. Grade, lot, side, treatment, cleanliness, coating, drying, and later printing conditions can change the observed result, so the actual material belongs in the comparison.
No. Typical product data are not guarantees or contract specifications, and they do not establish suitability for a complete job. Use the A0126 product page for the published values, then decide from the actual substrate and documented coating-to-print trial.
The A0126 catalogue lists flexographic, gravure, roller, and offline coating. Record the actual delivery setup and process condition used in the trial; this guide does not infer another coating method or a universal setup.
Record the substrate and side, current treatment check where applicable, cleanliness, A0126 identification, coating method and delivery, actual speed and drying path, conditioning or elapsed time, later print process and ink, and the agreed evaluation method and reference.
This guide plans an A0126 coating-to-later-print qualification before a production decision. The film-adhesion guide starts from an existing water-based ink adhesion failure on treated film and helps identify which interface or process variable deserves investigation.
Provide uncoated, coated, and later-printed samples when available, plus the material and side, treatment and cleanliness record, coating and drying setup, later ink and print step, evaluation method, accepted reference, observations, and one-variable change log.
Send the actual substrate and side, treatment and cleanliness record, coating and drying setup, subsequent print process and ink, agreed evaluation, and labeled comparison samples. The discussion can help structure a controlled trial; it does not approve the job.
