The recently popular liquid soap is in constant demand, with a large market for producers. Liquid soap has less drying effect on the skin, since it contains less alkali. Besides, it does not dry or turn into muck in the soap holder. Besides, the liquid soap is more healthy, not being touched by many people like solid soap is.
Liquid soap is produced by hydrolysis of fatty acid ester with alkali. This process is referred to as saponification. To prepare liquid soap, substitutes are used, such as colophony, tallow fat, fatty acids, nafta acids, or vegetable oil and animal fat.
The actual process used depends on the facility. The soap often contains softening, moisturizing or therapeutic components. Beside the obvious effects the above additives improve the liquid soap compared to regular alkaline soap.
Adding more ingredients into the soap, such as flavors, plant extracts, ester oils, of which many are natural components, increases the demand for the product. Saving on materials may increase the profit in the short run, but will not bring more sales ultimately.
There are several ways of producing liquid soap. Some of them are based in mixing of ingredients. However, there are such processes and melting and chipping, processing of solid soap into liquid using complicated machinery. Besides, solid soap has its own market and users.
The two other ways of making liquid soap – hot and cold – are considered more efficient.
The hot method, as is obvious from its name, involves heating of fats, saponification with alkali and cooling them, Dyes are rarely used with this process to increase product quality.
Making liquid soap using cold method is not only advantageous over teh hot process, but can be done using various blending equipment taken from other industries and improving liquid soap production.
Mixing of liquid soap allows to combine the process of adding dyes and flavors into a single operation.
At this time there is a variety of equipment to make liquid soap, mostly made in China. The process line includes a mixer, a mill, a forming machine, pressing machine, a refrigerator and a cutter, if solid soap is produced.
Therefore, using an all-in-one system for blending of liquid component is more efficient. Investments into new equipment return due to the high production capacity of the equipment, which accelerates production.
High quality product can only be made using good initial materials and efficient machinery. With universal blending systems and high quality ingredients, liquid soap production can be a winning strategy for good profit.