Скачать или смотреть Laundry Detergent Performance Testing Explained

This is my deep dive into how I test the performance of laundry detergents! I know it's a bit boring and dense but I hope it provides some clarity of my process.

This is the short version of what:
1) I buy white cotton in bulk and create 1'x'1' cotton swatches
2) The swatches are stained with 18 unique stains which represent the 5 stain categories
3) The stained swatches air dried and the color is measured before testing
4) The stained swatches pinned to a microfiber cloth so they dont bunch
5) The stained swatches are cleaned by being loaded the same machine, with the same laundry ballast, and I use the normal cycle every time and do three tests using different water temperatures cold, warm and hot water giving me 54 data points.
6) I also add a mixture of oils to the ballast to recreate body oil which is the most common stain (this is super important).
7) The cleaned swatches are air dried and then measured again
8) The data is captured and the results are gathered with my excel sheet which tells me how much of the stain is removed.

Let me know what questions you have!

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