COMBABILITY is the ease of
which hair can be combed. Keeping healthy and manageable hair is very
important, as hair and hairstyle contributes to a large extent to the
overall facial image of a person. The loss in manageability can
directly be attributed to an alteration of the hair surface. The
state of the cuticle governs the frictional properties of hair fibres
and determines how the hair feels to the touch and how it combs.
These physical changes lead to a rough hair surface and can directly
be correlated to the fact that higher forces will be required to
comb, for example UV-damaged hair. Combability measurement is a
method of choice to assess any alteration of the hair cuticle due to
external aggressions and has already been proven to be a sensitive
tool to detect UV-induced hair damage.
It is well known that conditioning
shampoos and hair conditioners are used to provide a variety of
benefits to hair: they reduce the combing force, enhance the gloss,
confer smoothness and antistatic properties and they improve the
manageability of the hair. Various types of benefit agents including
cationic surfactants, polymers, emollients, and special compounds
such as vitamins, UV filters, etc. contribute to cosmetic properties.
For example, silicones are insoluble oils that are commonly use as
conditioning agents for hair as they can effectively reduce combing
friction of hair and provide a soft, smooth feel and a shiny
appearance. Hair products are usually sold with cosmetic claims which
require substantiation. Combability measurement using a Texture
Analyser is one of the methods that is used to determine and quantify
the effectiveness of shampoos, conditioners and smoothing agents by
measuring and comparing the force to comb hair swatches with and
properties that can be obtained from a texture analysis graph:
Combing force, resistance to
combing, work of combing.
The above are only typical
examples of combing force
measurement. We can, of course, design and manufacture probes or
fixtures that are bespoke to your sample and its specific measurement.
Once your measurement is
performed, our expertise in its graphical interpretation is
unparalleled no-one understands texture analysis like we do.
Not only can we develop the most suitable and accurate method for the
testing of your sample, but we can prepare analysis procedures that
obtain the desired parameters from your curve and drop them into a
spreadsheet or report designed around your requirements.
Texture Analyser graph with
To discuss your specific test
here to email us.
We can all feel
it; let us show you how to measure it
click on the video to see an overview of Texture Analysis and
the properties it can measure...