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Thread Number: 87888
/ Tag: Modern Automatic Washers
The Importance Of Rinsing When Doing Laundry |
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| Post# 1124589 7/31/2021 at 18:22 (996 days old) by Jerrod_Six (Eastern Pennsylvania, USA) | ||
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This video discusses the importance of good rinsing as part of the cleaning process. I read an article about this several months ago, but this video explains it much better. CLICK HERE TO GO TO Jerrod_Six's LINK | ||
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Post# 1124591 , Reply# 1 7/31/2021 at 18:44 (996 days old) by appnut  (TX) |
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Post# 1124601 , Reply# 2 7/31/2021 at 19:14 (996 days old) by DADoES (TX, U.S. of A.) |
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Post# 1124630 , Reply# 3 8/1/2021 at 02:26 (996 days old) by mrboilwash (Munich,Germany) |
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So Diffusiophoresis helps a lot getting stuff out of intra yarn pores but there`s still the fact that a long wash cycle is giving much better results than a short one.
After all both are followed by a rinse cycle, aren`t they? IIRC in Japan they have some detergents merely based on nonionic surfactants which would not give an electrical difference between the micelles traped in the fibers and the rinse water. How can they get away with it? Is it because nonionics penetrate intra yarn pores much better than the anionics discussed in the video? | ||
| Post# 1124712 , Reply# 5 8/1/2021 at 21:17 (995 days old) by swedusa (Alabama) | ||
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It seems like this would confirm the popular advice to use smaller amounts of detergent, right? | ||
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Post# 1124720 , Reply# 6 8/1/2021 at 23:47 (995 days old) by GELaundry4ever (Nacogdoches, TX, USA) |
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My Kenmore Elite fills higher after some time in the main wash. It will do the spray rinse as well as a deep rinse in addition to to more spray rinses. You can hear the pump cavitating depending on what you put in it during the normal cycle. | ||
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Post# 1124726 , Reply# 7 8/2/2021 at 02:46 (995 days old) by mrboilwash (Munich,Germany) |
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I vaguely remember about diffusion in chemistry class decades ago but at 3:25 she says "when you`re using anionic surfactants this creates an electric field that makes the micells migrate out of those intra yarn pores" which made me believe it`s more about the electric charge than just about a concentration difference.
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| Post# 1124775 , Reply# 8 8/2/2021 at 20:40 (994 days old) by Pierreandreply4 (St-Bruno de montarville (province of quebec) canada) | ||
also depends on what brand of washer or type you own | ||
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Post# 1124777 , Reply# 9 8/2/2021 at 20:59 (994 days old) by DADoES (TX, U.S. of A.) |
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Post# 1124790 , Reply# 10 8/3/2021 at 04:28 (994 days old) by mrboilwash (Munich,Germany) |
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I still don`t get the new and revolutionary part of the whole process, besides maybe the explanation of how it`s possible to get at least part of the intra yarn dirt out even in a short and cool wash.
I`m thinking of Kelvinator`s Magic Minute or any kind of preteating by hand for example. That`s nothing else than the attempt of getting more micelles and other chemicals in which are pulled out again in a later stage of the wash cycle. In this case most of the diffusion happens in the mainwash instead of the rinse but it`s nothing new or groundbreaking. I also don`t understand why there shouldn`t be a spin before the the rinse cycle and still take advantage of "diffusiophoresis" IIRC Launderess mentioned several times that there has been an argument among laundry professionals going on whether a spin after the wash would press dissolved dirt further into fabrics or not. I think if there is a chance that dirt is getting pressed deeper into the fibers then it would also be the case for micelles, which in turn would be even beneficial for diffusiophoresis, or am I missing something? I`m wondering what impact a spin of something tie died right after the dye bath would have before rinsing. Couldn`t tell for sure but my best guess would be less color contrast as a result, which would translate into more micelles in intra yarn pores. | ||
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Post# 1124799 , Reply# 11 8/3/2021 at 08:51 (993 days old) by Logixx (Germany) |
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| Post# 1124806 , Reply# 12 8/3/2021 at 10:49 (993 days old) by Pierreandreply4 (St-Bruno de montarville (province of quebec) canada) | ||
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Post# 1125019 , Reply# 14 8/5/2021 at 17:01 (991 days old) by Launderess (Quiet Please, There´s a Lady on Stage) |
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Finally got round to watching video in OP.
Found it interesting, but turned to reading matter on same subject instead.
cosmosmagazine.com/physics/comin... live.iop-pp01.agh.sleek.net/2018/... If am understanding correctly it is the change in electrical charge (caused by introduction of fresh water), that gets diffusiophoresis going. Obviously if rinse water is laden with detergent or soap there won't be such a great change because of what surfactants do.... As for debate between extraction (by wringing, spinning or whatever means) at once after washing versus not, you have this: "The team also conducted model laundry experiments. The results showed that, after soaking a stained cotton fabric with detergent, a fresh water rinse cleans faster and more thoroughly than a rinse with detergent-filled water (see second video). Based on these findings, the researchers make several recommendations for optimizing the cleaning process. One of them is that fresh water should be added rapidly after thoroughly wringing out fabrics to remove detergent-saturated water." www.automaticwasher.org/c... Laundry manuals going back to early 1900's advised housewives or anyone else doing the wash that things should be wrung or extracted before going into rinse. This flies counter to commercial laundries and others and their "straining dirty water through fabrics) by extracting after wash and between rinses. | ||
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