Oil-repellent features are desirable attributes of some workwear, such as catering uniforms and chef wear, to help prevent stains and prolong the life of the garment. The oil resistance property enhances the durability of garments.
Oil repellency is the ability of a fabric to repel oil on contact and slide off grease rather than soaking in. It is determined by using a selected series of liquid hydrocarbons with different surface tensions to check the resistance of oil stains. Oil-repellent fabric is similar to waterproof fabric that requires very low surface tension.
Oil-repellent fabric can help clothing become more environmentally sustainable to achieve stain release during laundering. It repels oil and oil-based fluids to keep garments looking new longer. It also enables oil to roll off or be dabbed away and leave the underlying material unchanged.
Oil repellent properties can be tested by the below procedures:
The applicable methods for oil repellency testing include:
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