Ding Feng
is a "post-90s" ancient book restorationist in Nanjing Library html html html
not long ago
He completed the restoration of two "national treasure-level" ancient book
yuan engraved medical book "Yonglei Qian Fang"
repair "Yonglei Qian Fang"
repair. Source: Nanjing Library

repaired "Yonglei Qianfang". Source: Nanjing Library
In order to make ancient books that are nearly 700 years old, this young man in his early 30s
spent half a year
"Yonglei Qian Fang" has a total of 22 volumes
was written by Li Zhongnan, a doctor in the Yuan Dynasty
has nearly 700 years of history
has extremely high research value
Yuan engraved version "Yonglei Qian Fang" is rare in the past
only in Shanghai Library , Peking University Library and Nanjing Library have some residual books
2021
Ding Feng received the task of repairing 2 ancient books in Nanjing Library
Before repair
"Yonglei Qianfang" part of the book leaves have water stains and mold spots
part of acidification and brittle cracks
In addition
The mouth of the whole book is also broken
first contact with this precious ancient book of the country
Ding Feng said
I am quite nervous
but I am also determined to
do my best to repair it as before

Source: Nanjing Library

Source: Nanjing Library
"Repair" word, it is easy to say
Behind it,
, but you have to go through complicated processes
Disassembly the original book, and the problem is found is only the first step
0 Repair the remaining pages of ancient books
First, you need to To choose the paper that is closest to the original book,
,
,
,
, 0, suck the paper library,, seldom choose the most suitable
, face the "national treasure" collection of
, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, The paper with similar color on the cover of the book is always searching for but cannot find
Ding Feng had to find another method
Chemical dyes have a great harm to the paper
Ding Feng decided to use chestnut shells, rubber bowls, and tea to cook dye
Dyour own dye
In order to cook a paper with similar color to the original cover
He tried more than a dozen times
For the part of the eyebrow of the book "Yonglei Qianfang" that has been acidified
Ding Feng uses vellum In all repair processes, the most important thing is to "slip"
is to use thin strips and paste on the back of the paper to piece together and fix the originally broken book mouth
In order to accurately piece the book leaves as before
Ding Feng decides
First print the leaf frame on the transparent repair board
splicing according to the size of the board frame
Ding Feng discovers
As early as the Qing Dynasty
, a restorator left traces on these two books
by marking the column and supplementing
This ancient colleague completed the information of the original book
so that later generations could also fully understand the original incomplete information
He thought this chance encounter with his predecessors was very interesting:
"It means that I and him (Qing Dynasty restorator)
cooperated to protect this book
but the time period was different."
ml0Ding Feng said that
Ancient Book Repair
is like racing against time
Repair
Another batch of books are aging
Always hope that I can be faster
In Nanjing Library Ancient Book Repair Center
and Ding Feng raced against time 12 people
They used professional skills and rigorous attitude
Do what they can do to delay the aging of ancient books