18th century 1759–1770s In 1759, Oberkampf proposed a partnership with the
Swiss for the creation of a manufacture of cottons printed with engraved wood boards in Jouy-in-Josas. The first fabrics were successfully printed in May 1760. In 1764, Oberkampf increased his factory to a vast area of 18,000 m². The number of employees grew quickly and reached 900 workmen in 1774. In 1770, Oberkampf who had then lived in France for ten years, was made a naturalised French citizen, along with his brother. Around this period, an important technical evolution enabled his company to considerably increase its production: the wooden boards were replaced with copper plates, also engraved, but flexible and able to be fixed on cylindrical drums. The company entered the era of mechanisation. Until 1789, he was the business partner of Alexandre Sarrasin de Maraise, whose wife
Marie-Catherine de Maraise took care of his interests and had an able companionship with Christophe-Philippe Oberkampf.
1780s–1790s In 1783, the factory received from king
Louis XVI the title of "royal manufacturer" and in 1787, Oberkampf received from the king the title of
squire as well as the right to use arms and his device "Recte et vigilanter (uprightness and vigilance)". In 1785 Oberkampf invented the first machine for printing wallpaper, and shortly afterwards,
Louis-Nicolas Robert designed a process for manufacturing endless rolls of wall-paper. On 7 February 1790 the reforms of the
French Revolution led him to be appointed mayor of Jouy-en-Josas. In 1794 his daughter Émilie was born. Influenced by the British Infant Schools, she would become the pioneer of the
nursery school. The factory continued to flourish during the Revolution and became the second company of the kingdom after the mirror manufacture of Saint-Gobain. In 1799, sales declined and the manpower – which had reached 2,000 workers – was reduced.
19th century In 1806, Oberkampf won a gold medal at the industrial fair of the
Louvre for its eminent role in the manufacture of printed
toiles. On 20 June 1806, after visiting the workshops,
Napoleon, awarded him the
legion of honor. Decrease in the demand and competition got more insistent. In 1815, manpower fell to 435, and the manufacture was closed during the invasion of the armies united against the Emperor. ==Death and legacy==