Detergent formulation - Textile care products

The process of formulating a fabric care product begins by identifying what the consumer considers to be dirty laundry. The formulator must then define the origin and nature of the soiling and identify the chemical, physico-chemical, physical and biochemical processes likely to be used to eliminate each type of soiling. Only then can he choose the ingredients that will make up the formula, ensuring complete cleaning of the textile and/or giving it a pleasant look, feel and smell.

Detergency, in its broadest sense, involves several more or less interdependent mechanisms. These mechanisms are based on the phenomena of wettability, adsorption at liquid/solid interfaces, emulsification, solubilization and dispersion in the washing liquid. Detergency is therefore a complex process, and the specific function of each ingredient in the formulation is often difficult to pin down. Nevertheless, each ingredient in the formula fulfills either a primary function (cleaning the laundry in the case of a detergent) or a secondary function (keeping the laundry soft, restoring color brilliance, preventing color transfer...) or a tertiary function (fresh smell after washing, respect for the environment...). All these technical criteria, combined with environmental and economic regulatory criteria, make up the specifications needed to develop a formula.

When it comes to detergents, it's important to differentiate between developing and developed countries, where needs are different. In developing countries, the formula is simpler and often used for several types of cleaning. In developed countries, on the other hand, there is a much wider variety of products, each of which meets the specific needs of the consumer. As consumer expectations and habits differ greatly from one country to another, there are no "universal" formulas.