(under subclass 340) Processes in which a solid workpiece is treated in such a manner as to cause it to increase in size or become softer or more pliable.
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341, wherein solvents are employed to effect a superficial surface softening as in solvent polishing.
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8, Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers,
130.1, for swelling or plasticization of artificial fibers.
