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Abstract

A rapid and reproducible method is described for measurement of adsorption of particulate solids on fabrics or films and evaluation of dry-soil resistance. An Accelerotor drives the soil and samples along a circular path within a chamber. Impingement and degree of soiling can be continuously varied by changing the speed of the Accelerotor, the duration of soiling, and the amount of soil.

Soiling values of the new method correlate with soil resistance data obtained by other soiling methods involving me chanical work, such as tumbling and rubbing. A correlation exists also with nonabrasive soiling of stationary fabrics, unless the construction of the fabrics is markedly different or the transport of soil to the fiber surface determines soiling.

Simultaneous soiling of different fabrics was found to be competitive. Fabrics with the least soil resistance were preferentially soiled at the expense of the more soil-resistant fabrics. This alternative procedure has been used to enhance soil-resistance differences for visual evaluation.

It is shown that the resistance of a fluoropolymer-trealed fabric to oily particulate soil is not a function of its oil repel lency, but depends upon the nature of the polymeric finish, the substrate, and surface coverage.

Keywords

Cotton poplin nylon tricot polyester/cotton blend fabric. Abrasion. Soil release laundering. AATC standard detergent 124 fluoropolymers finishes. Particle size concentration time air flow transport rate soil/fabric ratio Accelerotor speed. Reflectance soiling values oil repellency competitive soiling soil resistance iron oxide content. Dry-soil resistance. Accelerotor laundering soiling soil release chemical analysis Kubelka-Munk equation.

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References

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A Rapid and Reproducible Method for the Determination of Dry-Soil Resistance

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