I have a handmade sweater made with wool. It has an intricate pattern with contrasting colors. I went to my local wool shop and they recommended using EUCALAN. The instructions read: By machine-Fill with tepid water. Add Eucalan. Stop machine. Load washables. Squeeze article gently. Soak for 30 minutes. By-pass rinse cycle. Spin water out.
By hand-Fill basin with tepid water. Add Eucalan. Squeeze article gentlhy. Soak for 15 minutes(minimum). No need to rinse.
It worked wonderfully well. I have since used it on several delicate articles of all different materials. The articles are clean and fresh smelling. I really like the fact that they do not have to be rinsed.