Correlation between Sequestrant Type and Properties of Mild Soap-Based Hand Washing Products

Abstract

In this work the study attempted to determine the correlation between the types of sequestrants used and the quality of soap-based hand washing products. A total of four formulations were prepared, containing various additives sequestrant. A reference formulation used in the tests was a product prototype without the addition of any sequestrants. It was found that application of sequestrant and its type used in a given formulation resulting in diverse viscosity values and potentially influencing the time of dissolution in water. The products under analysis were shown to have favorable functional parameters including the ability to emulsify fat and foaming properties evaluated in solutions in distilled water. Significant differences in results were noted in the evaluation of foaming properties, and an increase in turbidity was noted in washing baths prepared using the analyzed products in hard water, in comparison to solutions in distilled water. This may be due to the presence of soap in the product compositions and is attributable to the type of sequestrant used. With respect to the evaluation of product safety (zein value measurement), the products were shown to have a relatively low skin irritation potential, with no significant observed differences linked to the sequestrant additive used.

Improvement in the Safety of Use of Hand Dishwashing Liquids through the Addition of Sulfonic Derivatives of Alkyl Polyglucosides

“…The Author's previous research articles (Klimaszewska et al, ; Seweryn, ; Seweryn and Bujak, ; Seweryn et al, , ) and the literature on this topic (Ananthapadmanabhan et al, , ; Bujak et al, ; Cohen et al, ; Jackson et al, ; Pezron et al, ) show that the skin‐irritation effect induced by washing products can be evaluated by determining the zein value and the change in pH of BSA solution. The methods rely on the structural similarity between model proteins (zein and bovine albumin) and epidermal keratin.…”

“…The amount of solubilized protein was determined by Kjejdahl analysis, and the result of the zein number procedure was expressed as milligram of solubilized protein (calculated as nitrogen) in 100 mL of the sample. The test methodology is described in more detail by Nizioł‐Łukaszewska et al (Nizioł‐Łukaszewska and Bujak, ; Nizioł‐Łukaszewska et al, ), Seweryn et al (Seweryn and Bujak, ; Seweryn et al, , ), and Wasilewski et al (Bujak et al, ; Wasilewski et al, , ).…”

“…The group of surfactants widely used in industrial practice as primary washing agents in products of this type includes salts of oxyethylated alkyl sulfates and alkylbenzene sulfonates, mainly sodium laureth sulfate (SLES) and sodium alkylbenzene sulfonate (SAS). These raw materials exhibit a range of beneficial properties and achieve appropriate characteristic properties (desirable detergent and foaming properties, good susceptibility to viscosity modifications with salt) in liquid washing agents (Holmberg et al, ; Rosen and Kunjappu, ; Seweryn and Bujak, ; Seweryn et al, ). In addition, the raw materials listed above are available at relatively low unit prices.…”

Application Properties of Bath Liquids for Children Based on Sodium Laureth Sulfate with Addition of Different Molecular Weight Collagens Derived from Marine Sources

“…The product's high ability to emulsify fats may contribute to the removal of valuable, naturally occurring hydrophobic components from the skin surface and disturb the structure of the intercellular cement of the epidermis. It may consequently lead to excessive drying of the skin and its irritation (Seweryn et al, ; Seweryn and Bujak, ).…”

“…The obtained results indicate that the raw materials of natural origin do not significantly affect the functionality of bath liquids for children in the aspect of washing effect considered in the study. On the other hand, small decreases in the ability to emulsify fatty soils may bring benefits related to the safety of these types of products in terms of their impact on the skin, in the form of the possibility to reduce the leaching of natural lipids occurring in the epidermis (Seweryn et al, ; Seweryn and Bujak, ).…”