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Year 10 srp julie aimy jess cecilia cass
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21.
Wednesday, June 169:37 PM

Dissolve the Stain

  • Stain removers work in four ways. The first, and most common, way stain removers work is by simply dissolving the stain with either a solvent or surfactant. In fact, many stains can be removed by flushing them with water, which is a universal solvent. Water does not work to dissolve all stains, however. Grease stains, such as those made with butter, must be removed with something stronger and organic, such as an alcohol-based stain remover. Another popular organic solvent found in many stain removing products is Limonene. It is a molecule found in most citrus fruits which is great at dissolving stains, including inks and wax.

    Surfactants lift stains rather than diluting them out. They work by surrounding the molecules in the stain and loosening them. This in turn makes the stain easier to flush away with a solvent. Many people choose to treat a stain first with a surfactant spray before washing it. Most work quite well at removing stains. However, the majority of these sprays are made with synthetic surfactants and are quite toxic to the environment.


    • Eat the Stain

  • Tougher stains that are not easily dissolved can be "eaten," or "cut up." This is done by oxidizing the stain. Oxidizing removes the links holding the stain molecules together, which in turn allows the solvent to wash them away. Chlorine bleach, borax, and peroxide are all oxidizing agents.

    Another way to remove the links holding the stain molecules together is to use a biological, or enzyme-based stain remover. These literally "eat" away the links by digesting the fat and proteins in the stains. They are safer for the environment, but cannot be used on wool or silk fabrics.


    • Hide the Stain

  • Some stain removers work by simply "hiding" a stain. Although the stain molecules remain in the fabric, you cannot see them because they have been made colorless. Bleach is one such stain remover. It works by interrupting the bonds between the light-absorbing molecules, which has the effect of removing all color in both the stain and surrounding fabric. For this reason, bleach is usually only used on white clothing, and as a last resort if a stain cannot be removed by other means.

    • http://www.ehow.com/how-does_4679648_stain-removers-work.html
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    20.
    Sunday, June 133:02 PM
    Enzymes are proteins that are found in every living organism: man, animals, plants and microorganisms. Nature — including human digestive systems — relies on enzymes to break down proteins, starches and fats. The same types of enzymes can be used in detergents to break down the stains that bind to fabrics.
    • Specific enzymes attack a different stain
    • Many detergents contain multiple enzymes
    • More enzymes mean cleaner and whiter wash
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    19. Control
    Wednesday, June 99:34 PM
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    18. Homemade
    9:23 PM
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    17. Vanish
    9:15 PM
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    16. Select
    Sunday, June 612:38 PM
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    15.
    Saturday, June 55:59 PM
    I'm still measuring the other brands. takes me close to an hour to do one -.-

    I need to correct my method. Instead of using 3ml for the oil and coffee, I used 1ml because I realised when I measured it, how much 3ml actually is. And trust me, it was a lot. LOL and to think I was gonna use 5ml x_x

    Oh, and I used the averages of three points on the makeup ring because it wasn't exactly consistent
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    14.
    Wednesday, June 25:43 PM
    I washed the fabrics last week and here are the results for homebrand. you can't really compare yet because i haven't done the other brands
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