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A restored gesso panel representing St. Martin of Tours, from St. Michael and All Angels Church, Lyndhurst, Hampshire. Gesso (Italian pronunciation:; 'chalk', from the Latin: gypsum, from Greek: γύψος), also known as "glue gesso" or "Italian gesso", [1] is a white paint mixture used to coat rigid surfaces such as wooden painting panels or masonite as a permanent absorbent primer substrate ...
This is the most common way of treating non-washable fabrics. The front of the fabric is sponged with a sponge that is soaked in the solvent being used. The rear of the fabric should be backed up with a clean, absorbent, material. The stain is rubbed with the sponge radially, from the centre of the stain towards its edge.
Stains will be on the fabrics when the fabrics are unevenly distributed, which is the disadvantage of using the tumble dryer. [4] A reservoir for storing a fabric treatment composition is a device that the tumble dryer provides for different drying cycles. [4] The nebulizer system is used in fabric treatment devices. [11]
Modern solvent-based dry cleaning may have originated in 1821 with American entrepreneur Thomas L. Jennings. Jennings referred to his method as "dry scouring". [2] French dye-works operator Jean Baptiste Jolly [3] [a] developed his own method using kerosene and gasoline to clean fabrics. [3] He opened the first dry cleaning service in Paris in ...
Women washing clothes. Scouring is a preparatory treatment of certain textile materials. Scouring removes soluble and insoluble impurities found in textiles as natural, added and adventitious impurities: for example, oils, waxes, fats, vegetable matter, as well as dirt.
Whiteness in colorimetry is the degree to which a surface is white. [33] The term "whiteness" refers to the degree to which a surface resembles the properties of a perfect reflecting diffuser, i.e. an ideal reflecting surface that neither absorbs nor transmits light, but instead reflects it evenly in all directions.