Cleaning action of soap
Soap’s molecules-consist
of a hydrophilic (water loving) and a hydrophobic (water fearing) part.
The water molecules alone
are unable to pass through a greasy stain, since oil and water do not mix.
Soap molecules, through
their hydrophobic side, pass through the dirt, surround it and disrupt it,
while their hydrophilic side helps to dissolve it.
Soap attracts the dirt and
water washes away the dirty soap.
Which soap is good for bathing?
Soap which has high TFM is good.
TFM is total fatty matter.
i made a short survey of some of the soaps existing in market.
quite interesting!
Several soaps have good TFM value. Greater the TFM, greater is the ability to remove dirt.
Greater the TFM greater is the cleaning ability of soap
Soap TFM value
Mysore sandal 78%
cinthol 79%
fair glow 76%
Godrej no.1 76%
park avenue 76%
lux creamy white 72%
dettol skincare 71%
margo 71%
rexona 70%
hamam 65%
Himalaya soaps 76%
Yardley 78%
Fiama di wils, Dove, pears oil clear,medimix sandal- bathing bars
lifebuoy -45% TFM
2 comments:
Very informative
According to BIS norms, soap has given three grades with respect to the TFM value.
Grade I - TFM > 75%
Grade II - TFM 65-75%
Grade III - TFM < 65 %
if the soap contains fillers, it affect the quality of soaps and TFM has low value.
For handmade cold processed soaps, it retains 9-12% glycerin on an average (which is good for the skin).
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