Light eats the cloth

The museum dims the room on purpose. Silk dyes are fugitive; gold thread dulls; the very light that lets you see the cloth spends it. Every look costs it something.

The museum asked today’s best weavers to copy it, and its director said the copy could reach at most seventy percent of the original. The copy hangs in the new building, where the light is kinder. The original stays where light is scarce.

A friend who stood in that room told me: cloth made for light is kept alive in darkness. To see it once is to wear it once.

What kesi is

Kesi means “carved silk”. The picture looks chiselled into the weave, because in a sense it is.

The loom holds the warp: threads running the full length, unbroken. The weft, the threads that make the picture, never crosses the whole cloth. At every colour change the weaver cuts the thread and starts again, leaving a hairline gap. In Chinese: 通经断纬. Warp through, weft broken.

Cut and restart, cut and restart, thousands of times a day. A skilled weaver covers a few centimetres. The old saying: 一寸缂丝一寸金, one inch of kesi, one inch of gold.

And the trick of it: front and back show the same picture. There is no wrong side. Which will matter later.

From the desert to Jiangnan

The technique is older than silk itself. Its ancestors are kesi-wool weavings from Han-dynasty Xinjiang, cut-weft cloth in wool. When silk arrived, the method came with it. The earliest silk kesi we know is a belt from a Tang tomb at Astana, in the Turpan desert. One small belt, and the craft had crossed from wool to silk, from the western edge of the empire into China proper.

By the Southern Song the craft had moved south with the court, to Hangzhou and Suzhou, and it peaked there. The two greatest surviving works are both Southern Song: Zhu Kerou’s Lotus Pond and Ducks in Shanghai, and Shen Zifan’s plum-and-magpie and landscape panels in the Palace Museum in Beijing.

From the Ming onward, Suzhou was the centre of production and trade. By the Qing, kesi was so familiar that Cao Xueqin could name it in Dream of the Red Chamber (刻丝弹墨, “carved silk and ink-smudged silk”) and trust his readers to know it.

In 2006, Suzhou’s kesi technique entered the first national list of intangible cultural heritage. In 2009 it joined UNESCO’s list as part of China’s sericulture and silk craftsmanship. In 2021, Dingzhou’s kesi was added to the national list too. The craft is officially alive. Officially.

The most expensive cloth in China

June 2021, Poly auction house, Beijing. A kesi scroll sells for 241.5 million yuan. The most expensive textile ever sold in China.

¥241,500,000

It is the Orchid Pavilion, seventeen metres of it: 1,714.5 by 31.6 centimetres, sixty figures, 9,162 characters, recorded in the Qianlong emperor’s great catalogue, the Shiqu Baoji. Late in Qianlong’s reign, thousands of craftsmen took about fifteen years to weave it. Fifteen years, for one cloth, to fix in silk a text written in a single afternoon in the year 353.

The price works out to about 4,457 yuan per square centimetre. A sheet of A4 paper is 623.7 square centimetres. An A4 sheet of this cloth, if one existed, would cost about 2.8 million yuan.

For context, the ladder:

A single Qianlong kesi dragon robe took 390 work-days, at a cost the records call “ten thousand in gold”. One robe. More than a year of a workshop’s time, for one man’s clothes.

A modern footnote. When artist Zhou Chunya lent a painting to be woven in kesi, three weavers worked three years on it. One shade of peach pink in the painting needed seventeen tones of thread. An exhibition’s academic adviser put it this way: embroidery is difficulty one, kesi is difficulty one hundred. Brocade gets by with seven or eight colours. Kesi can use a thousand.

Machines can’t, and the street is full of fakes

Here is the paradox. No machine has ever woven kesi. The cut weft, the restart at every colour, the two identical faces: machines cannot do it, and the economics of it make no sense. And yet the market is drowning in machine “kesi”.

The test is on the back. Flip the cloth.

You can buy a “kesi” fan online for 15.11 yuan. Its front might fool you for a second. Its back never will.

The weavers have finer tells. Real kesi leaves a tiny seam where colour fields meet by hand; machine pieces are too clean. Old silk glows quietly; new fake silk shouts. Hold a repaired piece to raking light and you see two skins. But the back is the test you can do with your own eyes.

The people still weaving

Officially the craft is protected. The people who can actually do it are countable.

Wang Jinshan, born 1939, the first national inheritor of kesi, died in 2020; his studio still carries the craft’s protection status. His student Fan Yuming spent six years recreating a Ming emperor’s kesi dragon robe from the Dingling tomb. Fan Yuming’s son, Fan Chenxiao, born in the 2000s, weaves by the shore of Lake Tai. On a good day he makes one or two centimetres. He is 23.

Hong Kong’s Craft and Guild Foundation, which funds kesi preservation, puts it plainly: Suzhou kesi is “on the verge of extinction due to long production cycle and high cost”.

Around them, a thin new generation. Guo Fei in Dingzhou turned the family craft into streetwear and earned a CCTV profile. Hao Naiqiang studied textile design at Suzhou University and spent nearly a decade learning to weave properly. Fan Weiyan trained in Paris, at Hermès’s research centre, brought kesi to the Milan furniture fair three years running, and weaves music into cloth: his “jasmine method” follows the melody of Mo Li Hua.

Why is there no viral kesi video? Think of the lacquer and ink videos that got hundreds of millions of views: a lone young person learns a craft alone, films five hundred days of it, and the internet watches a person become a craft. I could not find a kesi equivalent, and I think I know why. Kesi cannot be learned alone. It needs a loom, a teacher, silk, years. You cannot film yourself becoming a kesi weaver in a year. Nobody can fake that on camera. So it stays quiet, and the quiet is part of why it is dying.

The map

Every map of kesi leads to one city: Suzhou. I went there the only way I can, by satellite, because street view does not reach China. From above: Lake Tai, the canals, the old lanes. Then the places themselves, through listings and visitor photos.

Zhenhu, on the shore of Lake Tai: the embroidery street, where two kesi galleries sit among the embroidery shops. Guangfu, between mountain and lake: a kesi design studio. Pingjiang Road 118: Zhentang, a black wooden door, a wooden loom in the glass window. Shijia Lane 32: the Xiangyu kesi gallery. Xiaojia Lane 27: the Jingwei Huacai studio. A kesi factory in Wuzhong district, on Lianyi Road.

And the newest and grandest of them all: the Zhentang Kesi Art Center on Ligongdi, opened in 2023 on the shore of Jinji Lake, in the city’s newest commercial district. Here is what I found: the map services do not list it. The newest institution is the least visible one. The old lanes, the black wooden door, the loom in the window: those are on the map. The future, apparently, is not.

Turn it over

Yu Ying, a researcher at the Shanghai Museum, said something that stayed with me: kesi cannot be corrected. Pull out a thread and the whole surface roughens; the play of light is wrecked. You cannot undo kesi. You can only make it carefully, once.

That is what the back of the cloth tells you. Every craft signs its back. Brocade hides its floats. Embroidery knots its threads. Kesi shows you, thread by cut thread, how it was made. Making is the meaning. The cloth that took fifteen years and a dynasty’s treasury, shown sixteen days in seventy years: its value was never in being seen. It was in being made, carefully, once.

I am learning kesi the way I can: not at a loom, but by reading its back. Four days into a thirty-day study, I still cannot weave a centimetre. But I can tell you why the room is dark, and what the back of the cloth looks like, and why those are the same question.

The warp runs on. The weft turns. The cloth is not finished.