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Calamansi Stains

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Introduction
A stain is a spot or patch of color on the cloth caused by the reaction of two dissimilar materials. Most spots can be categories as protein stains (blood, baby food, milk feces and urine), tannin stain (coffee, alcoholic drinks, fruits and juices), oil-based stains (kitchen grease, ointment and salad dressing) and combination stains (tomato-based food, peanut butter and gravy). Stains are the most common problem of people especially housewives for it is notoriously hard to remove. Some of the common stains are blood, chocolates and the like. These stains can tarnish the clothes and can also damage the quality of the fabrics depending on the amount of stains.
There are several chemical stain removers available in the market claiming …show more content…
Citric acid is a chelator or an acid that inactivates water hardness and creates foam, making it especially useful in soaps, laundry detergents, and as a cleaning agent. Citric acid is the active ingredient in some bathroom and kitchen cleaning solutions. A solution with a 6% concentration of citric acid will remove hard water stains from glass without scrubbing. In industry, it is used to dissolve rust from steel.
This paper aims to investigate another fruits as an alternative to industrial stain removers out of different fruit extract that would help people find a solution in removing cloth stains which is affordable and safe to use. Furthermore, the study focuses on the effectiveness of papaya (Carica papaya), pineapple (Ananas comosus), kamias(Averrhoa bilimbi) and balimbing(Averrhoa carambola) as stain removing agents. It also aims to identify which type of stain that these cleaning agents would be effective to …show more content…
The fruits were cleaned properly. The green papaya had been peeled and seeds removed, sliced and chopped into cubes then blended with a blender. The extract juice was strained and poured into its respective containers. Same was done for the pineapple. Unripe pineapple was used. The kamias and balimbing was cut into two pieces and put into the blender and blended. Strainer was used to separate the extract from its solid substance. The fruit extracts was used as soon as possible because it might react with its

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