摘要:
The method of pretreating pile fabrics with resin at relatively low percentage levels in order to stabilize the appearance (pile shrinkage and distortion) of the pile as affected by a subsequent treatment with liquid ammonia.
摘要:
A process and apparatus are disclosed for removing ammonia from fabric which has been previously treated with liquid ammonia, by subjecting the fabric to a solution of water saturated with ammonia maintained at a temperature level high enough to vaporize ammonia in the fabric without requiring commercially uneconomical input of heat energy. Subsequent steps remove the remainder of the ammonia and water trapped in the fabric, the system providing essentially complete recovery of all ammonia at substantially reduced heat energy expenditure.
摘要:
After compressive shrinking, moist (15% to 25% moisture by weight of fabric), preshrunk fabric is directed into a drum-type drier in which it is restrained while being dried to a moisture content of say 5% to 14%. Thereafter, the fabric is completely dried in a loop-type drier and additionally preshrunk while the fabric is in a relaxed state.