With a view of developing more efficient heavy duty laundry detergents, Surfaven company is promoting a new formulation which relies on new generation surfactants and advance technology manufacturing.
Con el objetivo de desarrollar detergentes para ropa de mayor eficiencia, la empresa Surfaven promueve una nueva formulación con base en surfactantes de nueva generación y manufactura de alta tecnología.
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Fluorescent Brightening Agents (FBAs) are chemical compounds that absorb light in the ultraviolet and violet region of the electromagnetic spectrum (350-360 nm) and re-emit light in the blue region (400-500 nm). They are typically used to enhance the appearance of colored fabrics, obtaining sharper, more intense colors and a whitening effect that makes fabrics look less yellow by increasing the overall amount of blue light reflected by the material.
White fabrics treated with FBAs can emit more visible light than that which shines on it. The blue light emitted by the FBA compensates for the diminishing blue of the treated material and changes the hue away from yellow and brown towards the white.
FBAs has long replaced the old practice of bluying (adding small amounts of blue dyes to the formulation) due to its high performance in replacing the yellow hues of clean laundry by a whiter overall appearance and intense, sharper, color tones, without permanently altering the coloration of the fibers.
Not all laundry detergents are created equal. Delicate fabrics require an altogether different approach when it comes to its formula. Nowadays it’s common place to find 2in1 laundry detergents (softener and detergent) but in reality what this means is that this specific kind of laundry detergent is formulated with additional quantities of mild surfactants in order to reduce any unintended wear in the fabric during the washing process.
The industry has come to know this type of liquid laundry detergents as light duty detergents, which are specially suited to either machine wash or hand wash. Delicate fabrics require specific mild surfactants such as betaines, amides among others in order to preserve the softness and special qualities that distinguish delicate fabrics from more resistant ones.
When designing a laundry detergent it is very important to find the appropriate combination of primary and secondary surfactants. Linear Alkyl Sulphonic Acid (LAS) along with fatty alcohols such as Lauryl Alcohol Ethoxylate (AE) make the best combination as primary surfactants, because when acting together it is possible to achieve:
1) Controlled and enhance foam stability;
2) Improve detergency performance at low-use or underbuilt washing conditions;
3) Decrease sensitivity to water hardness; and ultimately improve formulation characteristics in liquid laundry detergents.
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