书画的“裱”，不只是装饰，是画的一部分。原裱保真、保价；揭裱伤画、伤价。这篇用分层拆解的方式，讲清裱工的门道。
一、装裱的五层结构
一幅书画的装裱，从内到外有五层。每一层都有讲究。
画心（原作）
画家实际作画的部分。纸、绢、墨、色都在这一层。画心是价值的核心，其他四层都是为它服务。
命纸（托心纸）
直接托在画心背面的纸，是画心的“命”。命纸如果被揭掉，画心就伤。原裱命纸完好，是书画完整性的关键。
覆背纸
在命纸之后加的加固层，通常两到三层。覆背纸的作用是固定画心、防潮、防虫。覆背纸是否原装，是判断是否揭裱的重要依据。
镶料（边框）
画心四周的绫、绢边框。镶料的颜色、材质、样式，反映时代风格。原裱镶料通常与画心时代一致。
天杆、地杆、轴头
最外层的挂杆、卷轴、轴头。天杆挂、地杆卷，轴头是卷轴两端的装饰。原裱的天杆、地杆、轴头通常用料考究。
二、原裱 vs 揭裱
原裱 保真
- 命纸：完好，与画心一体
- 覆背：原装，有自然老化
- 镶料：与画心时代一致
- 天地杆：用料考究，有包浆
- 价值：保真、保价，是加分项
揭裱 伤画
- 命纸：被揭掉，画心变薄
- 覆背：新换，无自然老化
- 镶料：可能新配，与画心不符
- 天地杆：可能后配，缺乏包浆
- 价值：伤画、伤价，除非修复必要
三、对比表
| 特征 | 原裱 | 揭裱 |
|---|---|---|
| 命纸 | 完好 | 被揭掉 |
| 覆背 | 原装、自然老化 | 新换、无老化 |
| 镶料 | 与画心一致 | 可能新配 |
| 天地杆 | 原装、有包浆 | 可能后配 |
| 价格影响 | 加分 | 减分 |
四、上手怎么看？
- 看命纸：是否完好，有没有被揭过的痕迹
- 看覆背：是否有自然老化，还是新的
- 看镶料：颜色、材质、样式是否与画心一致
- 看天地杆：是否有包浆，还是后配的
- 问来源：问清楚有没有揭裱记录
五、常见误区
- 误区一：裱得新就是好——新裱可能是揭裱
- 误区二：揭裱是修复——揭裱伤画，不是所有画都该揭
- 误区三：原裱就是旧——原裱不一定旧，关键是完整性
- 误区四：看画就够了——裱工也是画的一部分
下一步可以做什么？
- 去博物馆看原裱书画，记住命纸、覆背、镶料的感觉
- 找一件有揭裱记录的书画，对比着看
- 买书画时，把是否原裱作为必问项
A painting's mounting isn't just decoration — it's part of the work. Original mounting preserves authenticity and value; re-mounting damages both. Here's a layer-by-layer breakdown.
1. Five layers of mounting
From inside out, a painting has five layers. Each matters.
Painting core
The actual painted area. Paper, silk, ink, colour all here. The core is the value; the other four layers serve it.
Lining paper
The paper directly behind the core — the core's "life". If removed, the core is damaged. An intact lining is key to integrity.
Backing paper
Reinforcement behind the lining, usually two or three layers. Fixes the core, resists moisture and insects. Original backing is a key sign of original mounting.
Border materials
Silk or damask borders around the core. Colour, material, and style reflect the period. Original borders usually match the core's period.
Top rod, bottom roller, knobs
Outer hanging rod, rolling rod, and end knobs. Original rods and knobs are usually well made.
2. Original vs re-mounted
Original Authentic
- Lining: intact, bonded to core
- Backing: original, naturally aged
- Border: matches core's period
- Rods: well made, patinated
- Value: preserves authenticity and value
Re-mounted Damages
- Lining: removed, core thinned
- Backing: replaced, no ageing
- Border: possibly new, mismatched
- Rods: possibly replaced, no patina
- Value: damages painting and price
3. Comparison
| Feature | Original | Re-mounted |
|---|---|---|
| Lining | Intact | Removed |
| Backing | Original, aged | New, no ageing |
| Border | Matches core | Possibly new |
| Rods | Original, patinated | Possibly replaced |
| Price | Adds value | Reduces value |
4. How to look
- Lining: intact? any sign of removal?
- Backing: naturally aged, or new?
- Border: colour, material, style match the core?
- Rods: patinated, or replaced?
- Ask: any re-mounting history?
5. Common misconceptions
- Fresh mounting = good — fresh may mean re-mounted
- Re-mounting = restoration — it damages; not all paintings should be re-mounted
- Original = old — original isn't necessarily old; integrity is what matters
- Just look at the painting — mounting is part of the work