| 摘要 |
A method for treating a web of material such as rug with a treatment medium in which one treatment medium is applied as part of a layer of foam to the advancing web and the foam allowed to act thereon and, in order to obtain effects not obtainable with the single layer of foam, a further treatment medium is applied to the foam as a foam, liquid, paste or in solid form and allowed to interact with the foam before either treatment medium is fixed, with both treatment media acting on the web.
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