Come gestire i rotoli di carta velina per prevenire danni ai bordi
Creato il 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. 切勿通过卷边处理 - 支持整个面宽
2. 维护表面完整性 - 避免凹陷、撕裂和污染
3. 防止变形 - 以正确的方向存储/运输
Key Handling Procedures:
Stage | Do's | Don'ts |
Lifting | Use roll cradles or shaft clamps Employ vacuum lifters with edge guards 支持双手全幅面支撑 | Don't use hooks or pinch grips Avoid forklifts without core adapters Never lift by core ends alone |
存储 | Store vertically on flat pallets Use edge protectors on both sides 保持50-60%的相对湿度，18-24°C | Don't stack horizontally Avoid leaning against walls Never expose to direct sunlight |
运输 | Use pallet sleeves with end caps Secure with air-bag systems Transport verticalement | Don't use straps without protectors 避免在卡车中松散堆放 Never drag rolls |
加工 | Use expanding shaft chucks Align rolls perfectly before loading Inspect cores for damage first | Don't use chuck jaws without buffers 避免不对齐加载 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: 最大3层高，垂直对齐；在层之间使用波纹分隔器
When Loading Presses:
1. 验证核心/卷直径兼容性
2. 使用核心插头以确保安全贴合
3. 同时以相等的压力夹紧夹头
4. 在通电前慢慢手动旋转
Pro Tip: 实施“无裸手”政策，并专门为玻璃纸配备处理设备。边缘损坏通常来自累积的小冲击 - 单个凹痕在展开过程中可以通过多个层传播。将卷材存放在远离高流量区域的地方，以防止意外冲击。
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