Bleaching Agents and Techniques

Szilard, Jules A. (1973). Bleaching Agents and Techniques. Park Ridge, NJ Noyes Data Corporation. 

Poly(vinyl alcohol) is employed for a variety of purposes. Film cast from aqueous alcohol solution is an important release agent in the manufacture of reinforced plastics. Incompletely hydrolysed grades have been developed for water-soluble packages for bath salts, bleaches, insecticides and disinfectants. Techniques for making tubular blown film, similar to that used with polyethylene, have been developed for this purpose. Moulded and extruded products which combine oil resistance with toughness and flexibility are produced in the United States but have never become popular in Europe. 

These techniques have been used to elucidate the effects of variety [289], temperature [287], scouring-bleaching [290], caustic mercerization [290-292], liquid ammonia treatment [290,292,293], cross-linking with different agents under varying conditions [294-298], dye-ability [296,299], and treatment with cellulases [300-302], on the cotton. The trends observed are summarized in Table 5.8. 

The chemistry of bleaching and oxidizing agents, with emphasis on the variations of oxidation-reduction potentials with pH, has been reviewed 168), However, a quantitative examination of the oxidation products is not feasible with present techniques, and, until such methods are readily available, reaction mechanisms can be suggested only in a tentative manner. 

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