MODEL RELEASED. Washing powder research. Technician holding an artificially-soiled cloth used in washing powder research. The cloth is washed in detergent to test its ability to remove stains without damaging the material. Detergents work because their molecules are soluble in water and in grease. During the washing process, a detergent molecule attaches itself to a grease molecule on the cloth and carries it away into the water.

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Creative#:

TOP10234909

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

YES

Property Release:

N/A

Right to Privacy:

No

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