The Elucidation of the Mechanism for Oily Soil Removal Using Liquid Chromatography with a Fiber Powders Column.

Tagaya, Hisako; Yoshida, Ayumi; Higashituji, Ken

doi:10.1246/nikkashi.1998.811

Cited by 4 publications

(8 citation statements)

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“…The k for squalene, triolein, oleic acid, cholesterol and SY5 on PET fabric substrate decreased with increasing SDS concentrations above the cmc. This is similar to that of oil-soluble dyestuffs on yarn filament or fiber powder substrates, which have been used as oily soil models (3,4). It is clear that the k values are affected by the solubilization of the fatty soils or SY5 into SDS micelles.…”

Section: Resultssupporting

confidence: 57%

“…The apparatus and procedure used for liquid chromatography (LC) were fundamentally the same as those reported previously (4). A degasser (model ILD, Waters Co., Milford, MA, USA) for removing dissolved gases from mobile phase was connected between the solution reservoir and the inlet to the pump to decrease baseline drift or shifts and background absorbance at low wavelengths, and to improve detection sensitivity.…”

Section: Methodsmentioning

confidence: 99%

“…The column was packed with 560 sheets of PET fabric disks of the same diameter in the dry state as the interior of the column. The packing in the columns was purified as described previously (4). The flow rate of the PET column was 2 mL/min.…”

Section: Methodsmentioning

confidence: 99%

“…The volume of the stationary phase (V s ) was calculated as the difference between the total column volume (V t ) and the void volume (V m ) of the column (4…”

Section: Methodsmentioning

confidence: 99%

“…Previously, we proposed a thermodynamic approach for estimating soil removal from substrates, that is, the transfer of an oil-soluble dyestuff as the oily soil model from a substrate into an aqueous surfactant solution, using a chromatographic method whereby the yarn filament or the pulverized form of a substrate serves as the stationary phase and a detergent solution serves as the mobile phase (3,4). This method has made it possible to characterize the soil removal mechanism thermodynamically without mechanical force.…”

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confidence: 99%

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Thermodynamic Study of Fatty Soil Removal from Polyester Fiber by Liquid Chromatography with Fabric Column

2004

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Contact of fabric surfaces with human skin inevitably results in transfer of human sebum, which cannot be easily removed by washing the fabrics in water with conventional detergents (1). Sebum, the sebaceous secretion of the skin, consists of a complex mixture of triglycerides, squalene, cholesterol and other sterols, free fatty acids and aliphatic hydrocarbons (2) and is the major oily soil constituent in home laundry. Although many studies on the removal of sebum soil from different substrates have been reported, few address the thermodynamics of sebum soil removal from fiber substrates into aqueous surfactant solutions. The mechanism for removal of oily soil by a substratewater-micelle system can be considered a two-step process involving the transfer of soil from substrate to water (non-micellar phase) and then from water into micelles. Thus, the free energy change of soil determines whether a detergent process will be successful in removing the 167 JOS

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Section: Resultssupporting

confidence: 57%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The volume of the stationary phase (V s ) was calculated as the difference between the total column volume (V t ) and the void volume (V m ) of the column (4…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Thermodynamic Study of Fatty Soil Removal from Polyester Fiber by Liquid Chromatography with Fabric Column

2004

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Direct Quantitative Analysis on Detergency of Soil Components Using ATR-FT/IR

Isaka

Ohashi

Koizumi

et al. 2021

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A New Approach to the Study of the Mechanism of Oily Soil Removal by Means of Liquid Chromatography with a Filament Yarn Column.

2002

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The detergency of fabrics is a complex process that depends in part on the physicochemical actions of the detergent solution and the mechanical actions exerted on the fabric. Experimental techniques have been devised for evaluating the soil removal ability of detergent in the washing of fabric (1, 2). However, most of these techniques require simultaneous actions of the detergents and the mechanical force. Thus, it is difficult with the techniques to analyze the essential role of detergent alone in the soil removal process. The detergency of a fiber assembly such as fabric may involve a dynamic equilibrium between desorption (removal) of soil from the fiber substrate into the detergent solution and its adsorption (re-deposition) from the solution onto the substrate. Such an equilibrium can be studied by chromatography where fiber substrate serves as the stationary phase and detergent solution as the mobile phase (3). During the development process of a 789

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The Elucidation of the Mechanism for Oily Soil Removal Using Liquid Chromatography with a Fiber Powders Column.

Cited by 4 publications

References 0 publications

Thermodynamic Study of Fatty Soil Removal from Polyester Fiber by Liquid Chromatography with Fabric Column

Thermodynamic Study of Fatty Soil Removal from Polyester Fiber by Liquid Chromatography with Fabric Column

Direct Quantitative Analysis on Detergency of Soil Components Using ATR-FT/IR

A New Approach to the Study of the Mechanism of Oily Soil Removal by Means of Liquid Chromatography with a Filament Yarn Column.

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