Select Page

How UV Residue Detection Improves Tablet Press Cleaning Validation

by | Jun 1, 2026

Many tablet press surfaces look clean before they are truly clean.

Shiny stainless steel often hides thin organic films from powders, binders, lubricants, and product residues that are difficult to see under white light.

That is why UV-assisted verification is becoming a practical tool for tablet manufacturers.


How the System Works

Step 1: Clean with Sahara® + MiraWIPE®

Use Sahara® to remove visible build-up and MiraWIPE® for final deep cleaning.

 

Step 2: Verify with PolyCHECK®

Wipe suspect surfaces using PolyCHECK® wipes or swabs.

Step 3: Illuminate with UV Light

When UV light is directed onto the PolyCHECK surface, residues collected from the equipment often fluoresce.

This helps operators determine whether organic residues remain on the tool surface.


Best Areas to Inspect

  • Punches and dies
  • Turret zones
  • Feed frames
  • Chutes
  • Product-contact guards
  • Threads
  • Crevices
  • Change parts

Why This Is Better Than Visual Inspection Alone

Visual inspection may miss:

  • Thin films
  • Clear residues
  • Oily contamination
  • Material in scratches
  • Grease-coated particles

PolyCHECK® + UV provides a faster secondary check.


Quality Benefit

The same hidden residues that delay release can also contribute to:

  • Dark specks in tablets
  • Embedded foreign material
  • Cross-batch contamination risk
  • Cosmetic rejects

Benefits

  • Faster release decisions
  • Better operator confidence
  • Less recleaning
  • Improved consistency
  • Lower defect risk

Final Thought

Validation programs need documentation. Operations teams need speed. PolyCHECK® + UV helps deliver both.

Foreign Material Identification Service