Patent ID: 11879831
Assignee: CONOPCO, INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A method of measuring a wet friction of a bundle of hair, using a system comprising:
i) a friction probe, having a contact surface, the probe fitted with a weight in the range of from 10 g to 500 g, inclusive;
ii) a means for securing the bundle of hair; and
iii) a water bath;
wherein the friction probe is connected to a texture analyser, the method comprising the steps of:
i) providing a bundle of hair fibres;
ii) aligning the bundle of hair fibres;
iii) securing the bundle of hair fibres;
iv) immersing the bundle of hair fibres under water in the water bath;
v) contacting the bundle of hair fibres with the contact surface of the friction probe, which is fitted with the weight;
vi) moving the probe along the hair fibres; and
vii) recording the friction generated under step vi);
wherein steps v)-vii) take place under water; and
wherein steps vi)-vii) are repeated until a constant value is obtained, without lifting the probe from the bundle of hair fibres.