scholarly journals Determination of Surface-active Agent. III. Volumetric Determination of Anionic Surface-active Agent using Neutral Red as an Indicator.

1962 ◽  
Vol 10 (6) ◽  
pp. 467-470 ◽  
Author(s):  
Toyozo Uno ◽  
Koichiro Miyajima
Keyword(s):  
Surface Active Agent ◽  
Active Agent ◽  
Neutral Red ◽  
Anionic Surface Active Agent ◽  
Volumetric Determination ◽  
Surface Active ◽  
Anionic Surface

New anionic surface-active agent derived from wool proteins for hair treatment

2010 ◽  
Vol 115 (3) ◽  
pp. 1461-1467 ◽  
Author(s):  
Clara Barba ◽  
Sonya Scott ◽  
Rob Kelly ◽  
Jose Luis Parra ◽  
Luisa Coderch
Keyword(s):  
Surface Active Agent ◽  
Active Agent ◽  
Anionic Surface Active Agent ◽  
Surface Active ◽  
Wool Proteins ◽  
Anionic Surface

THE DYEING OF NATURAL COTTON WITH DIRECT DYES: SOME EFFECTS DUE TO TEMPERATURE, DYE CONCENTRATION, AND ANIONIC SURFACE-ACTIVE AGENTS

1946 ◽  
Vol 24f (6) ◽  
pp. 474-493
Author(s):  
R. P. Graham ◽  
W. J. Seagers
Keyword(s):  
Surface Active Agent ◽  
Active Agent ◽  
Direct Dyes ◽  
Equilibrium Sorption ◽  
Bath Concentration ◽  
Surface Active Agents ◽  
Anionic Surface Active Agent ◽  
Surface Active ◽  
Time Required ◽  
Anionic Surface

The presence of an anionic surface-active agent in the dyeing of natural cotton yarn with a purified direct dye, using a dye-bath containing sodium chloride, is shown to increase the rate of dyeing, and to increase the amount of dye sorbed at equilibrium. The rate-accelerating effect has been studied as a function of the concentration of surface-active agent, using both commercial materials and methanol-extractable fractions of the latter. The effect exerted by an anionic surface-active agent, both on the equilibrium sorption and on the rate of dyeing, decreases as the temperature is increased. An explanation of the data, in terms of an interaction between the fibre and surface-active agent, is advanced.Studies carried out in the absence of a surface-active agent show that with increased temperature of dyeing the rate of dye sorption is increased, but the value of the equilibrium sorption is decreased; the dyeing process in exothermic. The relation between equilibrium sorption and residual dye-bath concentration is expressible by a Freundlich equation, and that between equilibrium sorption and initial dye-bath concentration is linear, at least over the range of concentration studied. The time required to reach a state of equilibrium increases as the initial concentration of dye in the bath is increased.

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