Soap-Making Manual: A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant.Thomssen, Edgar George
Science
Soap-Making Manual: A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant.
Thomssen, Edgar George
Soap
It is an unfortunate condition that hydrogenated oils produced abroad
are sold under names which give absolutely no indication as to the oil
which has been hardened. The softer and cheaper oils like fish oil,
linseed oil, cottonseed oil, etc., are generally hardened for soap
manufacture to different degrees of hardness. While it is impossible to
definitely state just what products as Candelite, Talgol, Krutolin or
several other coined names of hardened oils are, various investigators
have experimented with them as to their adaptability for producing
toilet soaps and found that suitable toilet soaps may be made from them.
While many objections were at first met with concerning soaps made from
these products, as to their unsatisfactory saponification, the poor
lathering quality of the soaps and their odor and consequent difficulty
in perfuming, the results of most investigators along these lines
indicate that these in many cases were due to prejudice against or
unfamiliarity with handling oils of this type for soap making.
In manufacturing soap from hardened oils it is usually necessary to
incorporate with the charge lard, tallow, tallow oil or some other soft
oil of this nature. Satisfactory bases for toilet soaps, made as boiled
settled soap by the use of Talgol (undoubtedly hardened fish oil), are
said to be made by the formulae[10] below.
I.
Tallow 45 parts
Talgol 40 "
Cocoanut Oil 15 "
II.
Cocoanut Oil (Ceylon) 6 "
Tallow 12 "
Talgol, Extra 12 "
The method of boiling a soap of this type does not differ materially
from that of making settled tallow soap base. The soap itself has a
different odor than a straight tallow base, but is said to make a very
satisfactory soap for milling and to be of good appearance.
Satisfactory transparent soaps are made from the hardened oil Candelite,
which replaces the tallow in transparent soap formulae such as have
already been given in the section under "Transparent Soaps." The method
of manufacturing a soap by the use of this product varies in no way from
the usual method employed for making these soaps.
Since hydrogenated oils are high in stearine, their use in shaving soaps
is a decided advantage. It has previously been pointed out that
potassium stearate forms an ideal lather for shaving, and in the
hydrogenating process the olein is converted to stearine. Thus a
hardened oil is advantageous in a shaving soap. As an example of a cold
made soap for shaving the following may be taken.[11]
Talgol Extra 50 lbs.
Cocoanut Oil 10 "
Lard 10 "
Soda Lye, 38deg. B. 20 "
Potash Lye, 37deg. B. 21 "
This soap may be made in a crutcher by the method generally used in
making soap by the cold process.
TEXTILE SOAPS.
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