The making liquid detergents consists of a wide range processing and packaging operations and the size and complexities of these operations may vary depending on factors, such as the size of plant and the manufacturing process undertaken.
The final products may range from an all-purpose laundry cleaner to speciality cleaner such as glass cleaner.
One of the main raw materials used is Soap noodles. As we understand soap noodles are raw materials for soap bars and for washing powders. They can be adjusted to meet your demand; softer, harder, transparent, dissoluble noodles.
First it is necessary for us to roughly understand the ingredients of soap noodles:
- Palm oil (C16-C18; basis stearic acid)
- Palm kernel oil (C12-C14; basis lauric acid) mostly in ratio 80 : 20
- Free fatty acids or free alkalines
- Moisture H2O
- Salt NaCl
- Glycerol; also known as glycerin(e)
The first step in the manufacturing of liquid detergents is the selection of raw materials. Raw materials are selected on the basis of several factors, such as human and environmental safety, cost, compatibility with other ingredients and the form and he specific properties desired in the final product. While the actual production processes may vary from according to manufacturer, some processes and techniques are common for all.
The most common ingredients that are used in making laundry liquids are – Water, Ethoxylated Methyl Esters, Potassium, Soap Noodles, Sodium Citrate, Ethanol Alkyl Poly Glycoside C10-16, Fatty Alcohol Sulfate C10-16, Citric Acid, Perfume, Linalool, Limonene and Citronella.
Laundry liquid is formulated for pre-spraying of stubborn stains on garments. It help in removing even the toughest stains and give exceptional cleaning results.
For manufacturing liquid detergent, both the batch as well as continuous blending processes is used. Both batch and continuous blending processes are used to manufacture liquid and gel cleaning products. Stabilizers may be added during manufacturing to ensure the uniformity and stability of the finished product.
In a typical continuous process, dry and liquid ingredients are added and blended to a uniform mixture using in-line or static mixers.
Recently, more concentrated liquid products have been introduced and a technique for developing these products is through the use of new high-energy mixing processes in combination with stabilizing agents.
To make liquid detergent, the dry powder is simply mixed back in with a solution consisting of chemicals and water, called as “solubilizers.” These chemicals help the water and detergent to blend together more evenly. The amount of light reflected, in comparison to the amount reflected by a sample of the original fabric, is a measure of the degree of cleanliness. A reflection rate of 98 % is considered as quite good and shows that the detergent has cleaned properly.
The Making of Liquid Detergent Process
The different stages involved in soap manufacturing include –
- Soap premix manufacture –Liquid detergents contain a combination of soap and synthetic surfactants. These are made first as a premix, after which other ingredients are blended into it. This stage simply consists of neutralizing fatty acids with either caustic soda (NaOH) or potassium hydroxide.
- Ingredient mixing –All ingredients except the enzymes are added and mixed at a high temperature. The ingredients used in the manufacturing of liquid detergents are usually sodium tripolyphosphate, caustic soda, sulphonic acid, perfume and water.
- Enzyme addition – In this stage, the mixture is cooled and milled, and the enzymes are added in powder form.
Some of the benefits of using a laundry liquid are :
- Exceptional washing results, even at low temperatures
- No optical brighteners
- Suitable for all white and colour fast laundry
- Fresh perfume from plant based ingredients also available as refill