A thread from an insect
Silk is a natural fiber produced by the larvae of a moth, most famously the domesticated silkworm. Each larva spins a cocoon from a single, very fine, continuous filament, and with careful handling that filament can be unwound and used as thread. China is widely recognized as the place where this was developed into a large-scale craft, and it kept the methods closely guarded for a long time.
Archaeological finds of silk fragments and related tools suggest that silk making in the region is very old, reaching back thousands of years. Exact dates for its start are uncertain, and the question is still studied.
The legend
A well-known tradition credits the discovery to Leizu, a consort of the legendary Yellow Emperor. The story says that a cocoon fell into her cup of hot water, and she noticed that the strands loosened and could be drawn out. She is then said to have encouraged silkworm raising and weaving. This is a legend rather than documented history, but it shows how important silk was in Chinese memory. Leizu was honored in later periods as a patron of silk workers, and some communities held ceremonies in her name.
Raising silkworms
The craft of raising silkworms is called sericulture. Its main stages, in a traditional household setting, went roughly like this.
- Hatching. The eggs are kept until the tiny larvae emerge in spring.
- Feeding. Silkworms eat mulberry leaves, and they eat a great deal. Families gathered fresh leaves several times a day, so mulberry trees were planted near villages and fields.
- Growth. The larvae grow quickly and molt several times. They need clean trays, careful temperature and airflow, and protection from disease.
- Spinning. When ready, each larva begins to spin its cocoon, usually on supports such as bundled straw.
- Harvest. Cocoons are gathered before the moth emerges, since a moth breaking out would damage the long filament.
For many rural families, this work fell largely to women, and the busy weeks of silkworm season shaped the household calendar. It required close attention and was sensitive to weather.
Reeling and spinning
To release the thread, cocoons are first treated with heat, for example by steaming or soaking in hot water, which softens the natural gum that holds the filament together. A worker then finds the end of the filament and winds several together onto a reel to form raw silk thread. The reeling process requires a steady hand to keep the thickness even. Rather than being cut, the filament is unrolled, which is part of why silk is long and strong for its weight.
Thread might then be twisted, boiled to remove more gum (a step that gives silk its soft feel and sheen), and dyed. Natural dyes from plants and minerals were used, and dyeing was its own skilled trade.
Weaving and decoration
Weavers used looms to turn thread into cloth. Simple looms made plain fabric, while more complex ones, including drawlooms, could weave patterned silks. Over the centuries, Chinese weavers developed many types: light gauze, smooth satin-like weaves, damask with patterns visible by the play of light, brocade with colored patterns, and heavier silks. Some were embroidered after weaving, and embroidery became a major art in its own right, with different regional styles.
Silk production often clustered in particular regions. The lower Yangtze area, including the Jiangnan water towns, is traditionally associated with silk and later with a flourishing textile trade. The Sichuan region is also long known for fine weaving, as are other areas. Such regional specializations show up again and again in the story of Chinese crafts.
Silk and trade
Silk was among the most valuable goods China produced, and its role in trade and diplomacy was large. During the Han dynasty and after, it was used as a form of wealth: bolts of silk were stored, given as rewards and sent as gifts in dealings with neighboring peoples. It also traveled far outside China.
The overland and sea routes often grouped under the name Silk Road exchange carried silk toward Central Asia, the Middle East and the Mediterranean world. The name itself comes from a modern writer rather than the people who used the routes, and the trade was a patchwork of many shorter links, not a single road. Buyers far away prized the fabric, and for a long time did not know exactly how it was made. Over centuries, knowledge of silk making did spread to other regions, and silk industries developed in several places. The details of how and when each place learned the craft are complicated and partly legendary.
Silk in dress and daily life
In China, silk clothing signaled status and was strongly tied to rank and occasion. Robes for court, weddings and festivals could be richly woven or embroidered. Ordinary people more often wore cloth from other fibers, such as hemp or cotton, and silk could be a special-occasion luxury. Historical dress such as hanfu and later garments like the qipao made use of silk in many forms.
Beyond clothing, silk was used for painting surfaces, book covers, banners, cords, and the cord used in Chinese knots. Writers sometimes used silk as a surface before paper became common. The material also gave rise to expressions in the language, and the character for silk and its radical appear in many words relating to thread, weaving and textiles, a feature of how Chinese characters build meaning.
Silk today
Silk is still produced in China on both industrial and artisan scales. Some workshops keep traditional methods alive for demonstration, restoration and specialty cloth. As with other crafts, much production has changed with modern machinery, but the underlying steps of raising, reeling and weaving remain recognizable. The fabric’s long history, from household work to global trade, helps explain why silk remains closely identified with China.