Timeline

Heritage classified

Key figures

Origin and history

The condition of the Lyon silks, located 7 rue Saint-Polycarpe in the 1st arrondissement, was built between 1804 and 1814 on old gardens of the Capucins. Designed by architect Joseph-Jean-Pascal Gay, it met a crucial need: accurately measuring the moisture of silk to fix its merchant weight, thus avoiding fraud in a rapidly growing business. Its architecture, inspired by Italian palaces, reflects its institutional role, with a facade decorated with symbolic motifs (mulberry leaves, silkworm) and a monumental staircase.

The establishment was originally founded in 1779 by Jean-Louis Rast-Maupas, before being taken over in 1805 by the Lyon Chamber of Commerce. Under Napoleon I, his creation was part of a series of reforms to revive the Lyon factory, alongside the court of labourmen (1806) and a school of drawing. The method of conditioning – desiccation of silk at 140°C to measure residual moisture – was perfected by engineer Léon Talabot in 1842. The building, enlarged in 1884, reached its peak in the late 19th century (8,000 tons treated annually), before declining with the arrival of artificial fibres.

In the 20th century, the silk condition will house the Silk Research Centre ( 1950s) and, after its decommissioning in 1976, will be rehabilitated in 1982 by Mortamet-Vidal-Manhés. Since then, it has hosted the municipal library of the 1st arrondissement, a social centre (Quartier Vitalité) and an association of veterans. Ranked historic monument in 1980 for its facades and staircase, it bears witness to the golden age of Lyon silk, between technical innovation and economic influence.

The laboratory of silk studies, installed on the second floor, played a major scientific role under the direction of Jules Dusuzeau (1885–97) and Daniel Levrat (1897–1940). His research into the mulberry boomyx and the quality of the wires, coupled with chemical analyses, helped mechanize milling and weaving. A bas-relief by Pasteur, added in 1924, recalls the importance of scientific advances in the textile industry. Today, the place combines heritage and local life, perpetuating both technical and social memory.

The public condition of the silks of Lyon, second after that of Turin (1684), was created by decree in 1805 to unify commercial practices. Its packaging process – adding 11% of standardized moisture after desiccation – became a European reference. The decline of silk in the 20th century, faced with the competition of synthetic fibres, led to its closure in 1976. Its rehabilitation into a cultural and associative space in 1982 made it a symbol of the conversion of the Lyon industrial heritage.

External links