Diatomaceous Earth
Fuller's earth or fuller's earth (from the Greek Smectic , meaning able to clean, wipe) is an earth-clay to particular virtues.
Summary |
Features
- The properties are apparent: saponifre, detergency, foaming and degreasing.
- It was a clay with a greenish gray, very moist, almost always contain a little lime, magnesia and iron oxide and is little fuse, greasy and easily be stirred into water that she makes soap, without forming a paste very ductile.
- According to a treaty dealing with the mineralogy of smectite clay . The color often has a greenish tint, attached to gray to white, brown, etc..
- In another treatise published in 1832 by the Royal Academy of Sciences, Humanities and Fine Arts of Belgium, says: The smectite clay does not contain, as the calcareous clay, carbonate of lime, if n is the focal point of the two clays. Torch, fuse it is, in water, it is disaggregated and forms only a short pasta, its color is usually yellow-gray salt passing, often mottled with brown.
Under the name Diels, it is also mixed with coal to form tiny balls to heat the apartments. When fat, thin and contains no foreign objects, she used to trample the linens.
Employment
These are properties that are used for crushing and is used to remove the wool fabric which is soaked in fat to facilitate their son's spinning and weaving. Tissues, the sheets are placed in buckets with fuller's earth, to be watered thoroughly crushed , either manually with a gland hand or mechanically with mallets propelled by water into the fulling mills.
In Paris, she was employed as a stone came loose and deposits gypsum of Montmartre, Pantin, etc.. Its use alone or mixed with a little soda , gave the property to revive the colors of fabrics. The stone, once soaked in water, was rubbed on the stain; earthy layer once dried was removed by brushing, the fat was absorbed by the clay.
Definition of smectic
Smectic: (Greek characterizes the structural phase of the body where the molecules are arranged in "sheets" (in parallel planes), able to slide over each other. Pertaining to a mesomorphic state, that is to say, intermediate between the crystalline state and liquid state of some liquid crystals. Said of creamy substances like soap.
Other jobs
- Ghassoul or Rhassoul , originally from Morocco, is used for the manufacture of cosmetic products (soap, shampoo, etc.).
- In the manufacture of glazes intended to give an aged look to furniture.
- Using Fuller's earth (or soapstone) for dislodging of concrete.
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