COMPOUND STAINS. The staining material is present on the fibre and in the fibre, in otherwords the staining material is absorbed by the carpet fibre,but also sits on the surface. Examples of compound stains are LIPSTICK, PAINT, HONEY.
DYE STAINS. Occur as a result of a spillage of dyes on the carpet. The staining material adds colour to the original colour of the carpet. Examples are cordial, softdrinks, or anything containing dye additives.
DESTRUCTIVE STAINS. The staining material has altered the nature of the carpet fibre an has caused physical damage to the fibre. Examples of destructive stains are: spillages of strong acids, household bleaches,etc

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