Q4 W2 Flashcards
A spot or localized discoloration left on the fabric by the foreign substance
Stain
Animal stains:
Blood, milk, wine, meat
Vegetable stains:
Tea, coffee, tomato, gravy
Grease stains:
Butter, ghee, curry, oil
Mineral stains:
Ink, rust, medicine
Paints, lipstick, chewing gum, etc..
Built-up stains
Combination of absorbed stains and built up stains blood
Compound stains
Hydrocarbons, petroleum based alcohol, chlorinated hydrocarbons — benzene, kerosene, acetone, glycerin, ethyl alcohol, turpentine, carbon tetra chloride
Solvents
Oxidizing bleach, reducing agents — Hydrogen peroxide, oxalic, acid, potassium, permanganate, sodium bisulphate.
Bleaches
Fatty acids — coconut oil, oleic acid.
Fats/oils
An ionic and-ionic soaps, fatty acid, alcohol, sulphatesnates, fatty amine oxides
Emulsifiers
Organic, in-organic — 1% oxalic acid, 30% formic acid, white vinegar, curd, sour milk, diluted hydrochloric acid
Acids
Ammonium hydroxide, sodium bicarbonate.
Alkalis
Enzymes soaps
Enzymes
Talc, cornstarch, french chalk
Absorbents