DIN EN ISO 3175-2:2010-08

Drycleaning is a process for cleaning textiles in an organic solvent that dissolves oils and fats and disperses particulate dirt substantially without the swelling or creasing associated with washing or wetcleaning. Small quantities of water may be incorporated in the solvent with the aid of a surfactant for the purpose of obtaining better soil and stain removal. Some moisture-sensitive articles are preferably cleaned without the addition of water to the solvent. A surfactant is often used to assist with soil removal and to prevent greying; but it should be borne in mind that surfactants contain varying amounts of water in their formulations. Cleaning is normally followed by an appropriate restorative finishing procedure. In most cases, this comprises some form of steam treatment and/or hot pressing. Properties of the textile and garment may change progressively on cleaning and steaming and/or pressing. In some cases, a single treatment can give little indication of the extent of dimensional and other changes that can arise after repeated treatments and which can affect the useful life of the textiles. Generally, most of the potential changes become apparent after three to five of the drycleaning and finishing treatments specified in this part of ISO 3175. The properties which should be considered in an assessment for drycleanability together with the methods for their assessment are given in ISO 3175-1. This part of ISO 3175 specifies dry-cleaning procedures for tetrachloroethene (perchloroethylene), using commercial dry-cleaning machines, for fabrics and garments. It comprises a procedure for normal materials and procedures for sensitive and very sensitive materials. The Committee responsible for this standard is NA 062-05-13-AA "Textilpflege, Wassereinwirkung, Knitterverhalten" ("Textile care, water action, creasing behaviour") at DIN.