固体粒子の繊維基質への付着に関する研究 (第1報) : Fe2O3粒子の付着脱落平衡

概要

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A study was made of the soiling process of solid particles on the fiber substrate in relation t o detergency. The authors applied theoretical treatment of equilibrium to a soiling system (solid particle/fiber/dispersion medium) assumed comparable to dyeing equilibria. Proposed in this paper is a pseudo-equilibrium system involving the adhesion and desorption of particulate Fe2O3 soil to five different textile substrates (cotton, diacetate, nylon-6, polyester, polypropyrene) in various media (H2O, EtOH, 1-BuOH, n-Hexane, CCl4) under weak mechanical oscillation to prevent the deposition of Fe2O3 in the dispersion medium. Under the conditions used a Freundlich type adhesion isotherm was obtained and adhesion isotherms at different temperatures were found to be exothermic. Empirical formulae for estimating the relative affinity parameter of Fe2O3 to the fiber substrate in this system are proposed.
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