Science Project education pen ink stain removal efficiency of j from pineapple juice to 1) to study the properties of the pen ink stain removal stain juice with pulp from the j-2 lakamchat) By j from the process of with pineapple juice As follows: Take slice pineapple into pieces and then barked a little. Filter through some white cloth to remove only the best pineapple juice, finely chopped 250 200 150 100 volume pineapple juice and 300 cubic centimeters. 100° c, the volume decreases until the remaining 50 cubic centimeters. Fill the N70 and klisoerin Each 5 cubic centimeters. Fill the salt down to 5 grams per person, with soft lights, all the ingredients melted together as well. Then test the ability to get rid of pen ink stains of pineapple juice by j. tick from ink pen down on the floor and desk, white cotton fabric with the same type of ink. The same line size. Put cotton balls impregnated with a gel that has all 5 concentration, Pineapple juice, N70 and klisoerin Each 10 cubic centimeters and is rubbing ink on the table for the cotton cloth soaked in the j-5 lasapparot minutes then taken to wash with clean water. Take each piece of fabric to compare and save result
. Experimental results showed that klisoerin and pen ink stain removal cannot be N70 on desktop and on white cotton fabric. Best j from pen ink stain remover can pineapple juice. And pen ink stain removal product that can be better: 300 cubic centimeters, possibly because of the difference of pineapple juice so it has a different performance.
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