Liquid soap is soap in liquid form. It is a cleansing agent made from a highly-foaming combination of surfactants.
To make 20 liters volume you will need the following Ingredients:
PAC-R
Sulphonic acid
formalin or Sodium benzoate salt
lemon essential oil(optional)
green colorant
soda ash
SLS or SLES
Water
PROCEDURE
PART 1 of 5
Preparing the PAC-R and Distilled Water Mixture.
1. Put on all protective gear, including gloves and face mask.
2. In a plastic container soak 2 cups of PAC-R in 5 liters of water and set aside for 2-3 days to completely soluble.
PART 2 of 5
Preparing the Light Soda Ash solution and adding it to Sulfonic Acid
1. In a medium-sized basin pour about 4 litres of water, and add 2 cups of light soda ash. mix until completely dissolved.
2. Then slowly add the light soda ash solution to sulfonic acid, stirring continuously using a stick or stainless steel hand blender to give you a creamy paste.
PART 3 of 5
Preparing the Sodium Lauryl Sulphate solution and combining it with the rest of the liquid soap
1. Dissolve 1 cup of SLS in 1 liter of warm water and add to the liquid soap paste
PART 4 of 5
Adding the preservative, fragrance oil, and colorant
1. Add 50mls of formalin or 50g of sodium benzoate preservative directly to the liquid soap and keep stirring until completely dissolved.
2. Add 50mls lemon fragrance oil and mix.
3. Add 2 teaspoons of green colorant powder directly into the liquid soap and continue stirring until you obtain a uniform color.
4. Make up to 20 Litres with water and mix consistently until a uniform texture is observed.
PART 5 of 5
Packaging and storage
1. Pour the liquid soap into a suitable transparent, squeezable spray plastic bottle that is made of PET (it is ideal because it stands up to fragrance oils or essential oils). Cover tightly.
2. Label and store in a cool place for external use only.
General Tips
*Some fragrance oils and essential oils have color of their own, so add them before you add the colorant. Liquid food colors work perfectly.
* If you are allergic to odours use a nose mask
* Use protective hand gloves on both hands
*When you want to prepare a large volume like say 50 liters, use 50.5 liters instead to avoid overspill.
*Measure the recipes accurately to avoid production errors.
* Dissolve the ingredients well to avoid lumps in the final product
* Chemical salts look similar, so label all salt recipes to avoid misplacement during production
* Know the difference between water-based color and oil-based color
FAQ
Q- How do I identify fruit colors and nonfruit colors?
A- The colors or natural pigment of a fruit are an important characteristic for its identification. Fruit colors are natural. No fruit colors are artificial colors that tend to be brighter and more stable than natural colors.
Q- Is it the type of color that is responsible for color change lightness in the thickness of liquid soap over time? Or other factors?
A- Yes, most unstable colorants can fade over time as a result of sensitivity to sunlight exposure. Your best bet for a very stable color would be oxides.
Q- In the making of liquid soap with PAC-R, can STTP and foam booster be added, and at what stage?
A- I haven't heard of using STTP to make liquid soap. It isn't an ingredient in liquid soap. The only way I make liquid soap is with soda ash.
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