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.