How to Handle Glassine Rolls to Prevent Edge Damage
Created on 07.16
Proper handling of glassine rolls is crucial to prevent edge damage, which can ruin the material and cause production issues. Follow these best practices:
Core Handling Principles:
1. Never handle by roll edges - Support the full face width
2. Maintain surface integrity - Avoid dents, tears & contamination
3. Prevent deformation - Store/transport in correct orientation
Key Handling Procedures:
Stage | Do's | Don'ts |
Lifting | Use roll cradles or shaft clamps Employ vacuum lifters with edge guards Support full face width with both hands | Don't use hooks or pinch grips Avoid forklifts without core adapters Never lift by core ends alone |
Storage | Store vertically on flat pallets Use edge protectors on both sides Maintain 50-60% RH, 18-24°C | Don't stack horizontally Avoid leaning against walls Never expose to direct sunlight |
Transport | Use pallet sleeves with end caps Secure with air-bag systems Transport vertically | Don't use straps without protectors Avoid loose stacking in trucks Never drag rolls |
Machining | Use expanding shaft chucks Align rolls perfectly before loading Inspect cores for damage first | Don't use chuck jaws without buffers Avoid misaligned loading Never force onto shafts |
Critical Details:
- Edge Protectors: Mandatory rigid flanges extending 5-10mm beyond roll edges
- Core Inspection: Check for cracks/damage before mounting - damaged cores cause crushing
- Humidity Control: Maintain stable RH to prevent edge waviness (critical for glassine)
- Clean Handling: Wear cotton gloves - skin oils permanently stain glassine
- Pallet Stacking: Max 3 high with vertical alignment; use corrugated separators between layers
When Loading Presses:
1. Verify core/roll diameter compatibility
2. Use core plugs if needed for secure fit
3. Engage chucks at equal pressure simultaneously
4. Rotate slowly by hand before powering
Pro Tip: Implement a "no bare hands" policy and dedicate handling equipment specifically for glassine. Edge damage often comes from cumulative minor impacts - a single dent can propagate through multiple layers during unwinding. Store rolls away from high-traffic areas to prevent accidental impacts.
Proper handling preserves glassine's unique properties: its smooth surface, moisture resistance, and dimensional stability. Damaged edges lead to web breaks, wrinkles, and print defects that cost far more than preventative measures.
Ray
Ferrill
Evelyn