Flexographic Press Ink Viscosity Control Log

This template is for recording ink viscosity, ink temperature, and solvent additions at each flexographic press color station during a run. It is meant to document the control points that affect color density and print consistency. It also gives the DRI a clear record of when adjustments were made and why.

Use it during make-ready, at startup, and throughout the press run whenever viscosity checks are part of the standard operating procedure. It is especially useful for long runs, color-critical jobs, and jobs that are sensitive to solvent evaporation or temperature drift. If the press is not using liquid inks or viscosity is not a control variable, this template is not a fit.

The press operator, lead pressman, or assigned quality/production DRI should complete it, depending on your shift handoff and accountability model. The person recording the values should be the same person who can verify the reading and make the adjustment or escalate a blocking issue. If your plant uses a separate QA role, that person can review the log after the run.

The cadence should follow your press SOP, ink supplier guidance, and job requirements. Many teams check at startup and then at defined intervals or after any solvent addition, temperature change, or print defect. The key is to make the recurrence explicit so checks are not skipped during busy production periods.

Yes, it creates a traceable record of process control decisions, which is useful for quality audits, customer complaints, and internal investigations. It supports disciplined documentation similar to ITIL-style runbooks and operational checklists by showing what was checked, what changed, and who verified it. It does not replace any site-specific regulatory or customer documentation requirements.

Common mistakes include recording only one station for a multi-station job, logging solvent additions without noting the reason, and using vague entries like 'looks good' instead of measurable values. Another pitfall is treating every deviation as critical, which makes the log harder to scan and can hide the issues that actually block production. The best logs keep each checklist item independently verifiable.

Yes, you can add or remove color stations, change the target viscosity range, and include fields for ink brand, solvent type, or ambient conditions. You can also adapt it for water-based, solvent-based, or UV flexo workflows as long as the control points remain measurable. Keep the task atomic so each entry still answers a clear yes/no or numeric verification question.

An ad-hoc notebook often captures notes, but it usually misses the repeatable structure needed for consistent checks, handoffs, and review. This template turns the process into a reusable task record with clear ownership, recurrence, and verification steps. That makes it easier to spot trends, compare shifts, and act on non-blocking versus blocking issues.