Before the emergence of chemical industries in the early 1800s, which made available a number of inexpensive organic solvents, all textile processing, whether cleaning or dyeing was carried in water. As organic solvents become available e.g. as a byproduct from coal-gas industry, the textile trade shown interest in cleaning purpose from these solvents. A Frenchman accidentally came across the process, so earlier it was known as " French Cleaning". Later it becomes "Dry Cleaning" and in Germany it is known as "Chemical Cleaning". Dry cleaning had already been applied to cleaning techniques, which made use of absorbent earth material, Fuller's Earth. It has been used since Roman times for removing grease. This technique did not involve water hence it is known as "Dry Cleaning". The cleaning of textile materials is too complex and highly technical application operation in which organic solvents and water is combined to achieve required results, very sharp line is drawn between "wet cleaning" and " dry cleaning". It is just that it made use of organic solvents for cleaning.