@paulc, we seem to be sharing very similar approach.
Recently found out Frosch started distributing their products here; only a limited number of items but they claim it will expand.
I have to admit to missing their laundry powders and dishwasher tablets, they were close to perfect back in Europe. Ordered a bottle of the Apple Color detergent, we'll see how it performs. Have you ever tried it?
So far Ecover powder proves itself to be a stellar performer for whites and colorfast clothing. Used to use OxoBrite to boost bleaching but Vaska Oxygen Bleach tablets are way ahead. According to ingredients they contain a bleach activator, which is ridiculously hard to find in the "natural" selection.
Also like Ecover liquid; doesn't fade, washes very well (except stubborn oil stains - but ring around the collar or mineral sunscreen is removed even in lukewarm water), also contains cellulase so no fuzzy cotton unmentionables syndrome.
Vaska is pretty good, but having had used it for so long I felt forced to switch things up.
Seventh Generation, on the other hand, just doesn't cut it. Found it to fade darks quite visibly and underperform in lower temperatures. Same with Ecos, sudsy mess with mediocre results.
Problem with 1.4 dioxane is that it isn't really an ingredient - in most cases it's formed during the process of manufacturing - hence no need to disclose it on the ingredients list, whether or not the manufacturer actually decided to provide one. Unless a product is tested and found to be dioxane free it's hard to judge from the bottle.