Stamp Preservation & Storage Guide

邮票保养、防潮与长期保存指南

Best practices for climate control, album selection, and safe handling to protect your collection from humidity, fading, and gum foxing.

Ideal Storage Conditions / 最佳保存环境标准

Factor / 因素	Recommended Standard / 标准范围	Risk of Deviation / 异常风险
Relative Humidity 相对湿度	45% – 55% RH	>65% causes mold & gum toning; <35% leads to paper brittleness. 过高导致发霉变色；过低纸张易脆化。
Temperature 保存温度	18°C – 22°C (64°F – 72°F)	High heat softens original gum. 高温加速背胶软化粘连。
Lighting 光照条件	Dark Store / UV Filtered 避光 / 无紫外线	UV light causes ink fading. 紫外线与强光会导致油墨褪色。

Golden Rules for Preservation / 邮票保存四大黄金法则

1. Use Acid-Free Philatelic Supplies / 使用无酸集邮材料

Always store stamps in acid-free stamp mounts (OPP/PET material) and acid-free stockbooks. PVC materials release harmful plasticizers over time that yellow paper.

请务必选择无酸邮册与无酸保护袋（OPP/PET材质）。严禁使用含 PVC 材质的塑料袋，其释放的增塑剂会导致邮票发黄变质。

2. Vertical Album Placement / 集邮册须竖直立放

Store stamp albums vertically like books on a bookshelf. Flat stacking creates pressure that may cause stamps or gum to adhere to plastic pocket sheets.

邮册存放时应如书本般竖直排列，严禁平放重压，否则长期压力易导致邮票背胶与保护页粘连。

3. Professional Handling (Tweezers) / 始终使用专业邮票镊子

Never touch stamps with bare fingers. Moisture and skin oils cause foxing and gum damage over time. Use spade-tip or spade-angle tongs.

切勿直接用手拿取邮票，手指分泌的汗液与油脂是日后产生黄斑的主因。请务必使用平头或铲形专业邮票镊。

4. Dehumidification & Air Exchange / 电子防潮箱与定期通风

In humid regions (like Southern China or Southeast Asia), electronic dry cabinets are highly recommended. Turn pages annually to allow paper breathing.

在潮湿地区（如中国南方或东南亚），强烈建议使用电子防潮箱保存高价值邮票。每年选择晴朗天气翻动集邮册进行适度通风。