brenda :D
Year 10 STGGHS
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21.
Wednesday, June 169:37 PM
Dissolve the StainSurfactants 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 StainAnother 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 Stainhttp://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.
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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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13.
Thursday, May 135:03 PM
Edited some parts but still not entirely satisfied :/
Method: 1. Cut material into 20, 5cm by 5cm, squares and take a photo of one cloth 2. Label each piece with the name of each pre-wash stain remover and the stain, in the corner 3. Measure 3ml of Vegetable Oil and pour onto center of cloth 4. Use an eyeliner pencil and draw a 3cm diameter circle with a compass, on another cloth 5. Squeeze a dollop of tomato sauce and rub it into the third cloth 7. Repeat steps three to six, 4 more times. There should now be 5 of each stain, totaling to 20 cloths all together. 8. Let the stains soak in overnight 9. Take a photo of each cloth, the next day, with the same light conditions (In a dark room with only camera flash etc) 10. Spray the Woolworths Homebrand Pre-Wash Stain remover on each of the 4 stains and leave it for 5 minutes 10. Repeat with the other solutions 11. Leave 4 stained pieces of material as a control 12. Place all 20 pieces into the washing machine with the setting as quick warm wash (results may vary depending on the washing machine) and wash as normal 13. Take it out and hang on the clothes line for 2 hours 14. Take another photo of each cloth in the same lighting conditions 15. Upload each individual photo of before and afters 16. Open up a photo editing program such as photoshop and use the eyedropper tool on the middle of each stain.Computers define color by measuring the amount of red, green, and blue in a pixel on a scale from 0 to 255. If the amounts of red, green, and blue in a pixel are all 255, then the pixel is pure white. 17. Add the numbers up for each picture and compare. The one with the greatest red, green and blue number difference between the before wash and after wash picture is the best pre-wash stain remover 16. Record numbers and pictures in the table below
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12.
Saturday, May 88:20 PM
Ok, second try. This is a first draft. Needs to be revised D:
Method: 1. Cut material into 20, 5cm by 5cm squares and take a photo of a cloth 2. Label each piece with the name of each pre-wash stain remover and the stain 3. Measure 5ml of Vegetable Oil and pour onto center of a cloth 4. Use an eyeliner pencil and draw a 3cm diameter circle with a compass, on another cloth 5. Squirt a 2cm line of tomato sauce on the third cloth and smudge it in with fingers, making sure everything stays on cloth 6. Pour 5ml of Black Coffee (http://www.wikihow.com/Make-Instant-Coffee) onto the 4th cloth 7. Repeat steps three to six, 4 more times. There should now be 5 of each stain, totaling to 20 cloths all together. 8. Let the stains soak in overnight 9. Take a photo of each cloth with the same lighting conditions. 10. Spray the Woolworths Homebrand Pre-Wash Stain remover on each of the 4 stains and leave it for 5 minutes 10. Repeat with the other solutions 11. Leave 4 stained cloths as a control 12. Place all 20 pieces into the washing machine with setting quick wash (results may vary depending on the washing machine) and wash as normal 13. Take it out and hang on the washing line for 2 hours 14. Take another photo of each cloth in the same lighting conditions 15. Measure it with this technique http://answers.yahoo.com/question/index?qid=20081218170741AA4WUQs 16. Record numbers and pictures in the table below
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11.
Friday, May 77:55 PM
Haven't been on, in one or two weeks because I didn't know what to post about. Nothing has been happening. I'm gonna start my experiment next week, after all the half yearly tests are over. I still need to figure out a way to measure how much stain is left afterwards. I'm not sure :/
Method (to be edited): 1. Cut up white cotton material in to 10cm by 10cm squares 2. ... omg. i dont know the information. it's on the other computer. might as well write it up tomorrow ==" |
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10.
Monday, April 191:48 PM
I didn't end up doing my experiment yet because I haven't bought ammonia. Is ammonia and cloudy ammonia the same thing? o.o
Well anyways, I finished photoshopping my graph - took me an hour Right at the end, I realised the temperature lines were opposite colour -.- but it doesn't really matter right? :S  |
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9.
Friday, April 1612:26 PM
I can never think of a title for a post so I might as well just start numbering them. I found this recipe for a homemade pre-wash stain remover and it seems pretty good, except where can i get ammonia and what does it look like? o.o
This amazing homemade pre wash solution works better than expensive store-bought pre wash solutions. Mix together 2 pints of warm water, 2 teaspoons of liquid detergent, and 4 tablespoons of standard ammonia. Pour the solution into a clean spray bottle, and spray stains before washing stained laundry. Allow the mixture to soak into stains for 10 to 15 minutes, and wash the fabrics as instructed on labeling. Store this pre wash solution in a spray bottle, and spray it on every stubborn stain. This homemade pre wash solution definitely works like magic, and if it won't remove stubborn laundry stains, nothing will. Aldi doesn't sell pre-wash stain removers -.- Homebrand Pre-Wash Stain Remover - $1.60 or $3.20 per Litre Select Pre-wash Stain Remover - $3.76 or $7.52 per Litre Vanish Preen Fabric Stain Remover - $4.21 or $11.23 per litre The Select and the Vanish one are both enzyme powered. I have no idea what that means. |
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:/
Wednesday, April 1411:41 PM
I went spotlight the other day to get my material. I ended up getting a Flat Fats (that's what it says on the label) which is made in India with 100% cotton hahaha. I'll cut them up into 10x10cm squares which will leave me with around 25 squares. I think mum's doing the washing on Saturday so I'll most likely make my stains on Friday, giving it time to soak in.
I also got 3 pre-wash stain removers- Homebrand, Woolworth's Select and Vanish Preen. I'm planning to go Aldi to see if I could get another one there. I'm also going to make a home made one too. I'll list the prices of each one when I get all of them. I have a feeling the most expensive one isn't going to be the best one. We'll just have to wait and see. Aim: To find the most effective pre-stain remover on oil, make-up and coffee. |
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srppp
Wednesday, April 72:31 PM
whoa it's been some time since my last post. I'm failing this already -.-
I'm gonna write myself a note. anyways. nothing much has been happening. maybe that's why i haven't been blogging. I need to go spotlight to get my materials probably tomorrow or some time soon. In fact, I'm gonna ask mum now hmm, I'm gonna cut out squares 10x10cm of material for each test. theres gonna be three common stains - coffee, makeup, and oil the following brands will be tested - Woolworth's Homebrand, Woolworth's select, Vanish Preen, Orange Power and another home made one. umm im not sure if i should so more materials or just the cotton one. maybe denim? i'll just have to look around spotlight and see if theres anything else. note to self - blog more often, go spotlight, find recipe for home made stain removal thingo, find an effective way to measure the stains afterwards, finish the graph we did in class D: |
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last post before first blog submission
Tuesday, March 99:38 PM
stain removal test
independent variables - the brand of pre-wash stain remover dependent variables - how much of the stain is left after one wash control variables - size of white cotton cloth - equal stain size - same wash time and temperature still thinking :) |
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decision time
Sunday, March 73:08 PM
I think I'm gonna do the stains testing experiment for my srp. but i heard a lot of people did it last year. so it's not exactly unique/different :(
I could either test: - different types of stains on the same type of material. e.g. wine, chocolate, oil etc. on a plain white cloth - the same stain on different types of material. e.g. oil on denim, plain white cloth and silk? - or both <--- i want to do this one but it means more work |
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more ideas :)
Monday, March 18:59 PM
It's been a while since I last posted.. ugh
Anyways, I came up with two more possible ideas 1. Which brand of stain removing powder thingo works best. I guess this would be fun-ish. I would need to create my own stains. e.g. common stuff like oil, make-up, paint/highlighter/pen marks :L 2. If the wavelength of light affects the growth of plants. In this case, I'll get different coloured cellophane to wrap around eCh plant. It'll act as a kind of filter... do you need to reference here? just in case... i got those ideas from http://community.boredofstudies.org/129/year-10-school-certificate/199377/science-student-research-project-any-ideas/2.html rofl If i were to pick one of the two, i would probably do number 1 because it seems less boring :S I'd still rather do the hand sanitisers one but there is no way i can do that. Reasons are: - I have no microscope nor am i gonna buy one just for this - I don't know how to get just common hand bacteria to test, because you can't really grow mould to test this. I don't think you would normally have mould on your hands anyway |
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ideas?
Wednesday, February 109:31 PM
ooohhh it'll be cool to find out whether hand sanitizers actually kill 99.99% of germs.
but i have no idea how i would be able to do that LOL |
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helpppp
8:28 PM
im having a little trouble...
how do you get a "follow me" button???? D: |
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:))))))))
Monday, February 89:30 PM
HELLO world
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