Talk:Laundry detergent

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Reaction with biomolecules[edit]

I think most of us have noticed that when detergent powder, especially slightly moistened, comes in contact with our skin, it feels warm, suggesting that there is an exothermic reaction between the skin and the detergent. I am not exactly sure why this happens, although I have learned from some sources that this might be because of bond formation between the liophilic (or hydrophobic) ends of the detergent dipole and the surface biomolecules of the skin, and the subsequent release of ATP (contributing to the warm feeling) in the process. I was wondering if anyone could add a section explaining reactions of detergent with biomolecules in general, and with the skin in particular (with citations from reliable sources of course). Knaveknight (talk) 14:03, 19 July 2015 (UTC)

WHY is soap inadequate for laundry?[edit]

The most screaming question is WHY is laundry detergent needed over basic soap? The article mentions that soap is inhibited by hard water hence the need for something different. But why is hard water only an issue for laundry but not everywhere else? Let's address this question prominently in the article. Then everyone understands WHY about detergent. Rtdrury (talk) 05:19, 7 November 2015 (UTC)

- Because lime soap (Ca-soap) is not soluble in water and builds sharp needles which will go to the fabric surface and can take damage to it (there are other ingredients, e.g. polymers or other surfactants which can dispers them). This is why you cannot use it as a surfactant, BUT as foam controlling agent and Ca-ions catching additive. Chris (talk) 07:42, 28 July 2016 (UTC)

3rd paragraph of history describes a more general answer. If we can get a citation on the above calcium ion needles, we can add that. Tarl N. (discuss) 13:27, 28 July 2016 (UTC)

Australia begain to phase out phosphates starting 2011[edit]

That's what the reference says, so it's right for Wikipedia.... but, actually, it's complete balony: Australia started phasing out phosphates in the 60's or 70's, when it first became an issue. All the big brand washing powders switched to low-phosphate or almost-zero-phosphate formulations at that time. In 2011 Australia started to finish phasing phosphates out of laundry detergents. — Preceding unsigned comment added by (talk) 09:11, 8 December 2016 (UTC)

New article - Phosphates in detergent[edit]

I just created phosphates in detergent. On that article's talk page I described how I moved content about "phosphates in detergent" from these articles to there.

I put a brief summary of the concept here and am directing readers there for a fuller presentation. I did this because the concept was forked by being independently developed in all these articles, when instead they should all point to one central article. Blue Rasberry (talk) 21:50, 21 March 2017 (UTC)

New IP vandal with first edit vandalizing this page[edit] They have a terrible record; why not shut them down pronto?--Quisqualis (talk) 09:08, 20 April 2017 (UTC)