Hand dishwashing detergents surfactants

Liquid detergents based on Pilot Calsoft, Cal suds and Calfoam surfactants produce safe, effective suds with excellent grease-cutting properties for hand dishwashing. Detergents containing Calamide C are especially mild to sensitive skin. 

Of the three main types of surfactants, the anionics are by far the most commercially important class, constituting, in particular, the major surfactant type represented in laundry and hand-dishwashing detergents. Among the anionics, linear sodium alky] benzene sul-fonaie (LAS), linear alkyl sulfates, and linear alkyl ethoxy sulfates are by far the most widely used compounds. (The industry convened voluntarily to linear alkyl chains in the mid-1960s to obtain improved biodegradabilily relative to the branched chain alkylates formerly used.)... 

Synonyms Butanedioic acid, sulfo-, mono [2-[(1-oxo-9-octadecenyl) amino] ethyl] ester, disodium salt Disodium (Z)- [2-[(1-oxooctadec-9-enyl) amino] ethyl] 2-sulfonatosuccinate Sulfobutanedioic acid, mono [2-[(1-oxo-9-octadecenyl) amino] ethyl] ester, disodium salt Definition Disodium salt of a substituted ethanolamide half ester of sulfosuccinic acid Empirical C24H43NO8S 2Na Properties Anionic Toxicology TSCA listed Uses Solubilizer, thickener, surfactant, emollient, skin conditioner, hair conditioner in cosmetics foaming agent in toiletries, hand dishwashing detergents, and personal care prods. 

An early hand dishwashing detergent is compared to a more recent formulation in Table 3.3. From this comparison one can see that the basic components have not changed much over the years. It is clear that surfactants have been and continue to be the most important ingredients, responsible for cleaning and foaming. 

ASMEs have excellent detergency and are also potential substitutes for LAS. These surfactants have not been used widely in hand dishwashing detergents thus far, presumably because of then-cost and availability. 

Uses Pearlescent, opacifier for emulsions and surfactant preps., shampoos, body cleaners, hand dishwashing detergents, rinses, cosmetics and creams Properties Flake HLB 1 100% solids Ablunol EGMS [Taiwan Surf ]... 

Uses Surfactant, foam builder, and detergent In hand dishwash detergents, car wash detergents, and other cleaners/delergents Features High foaming stable in moderate levels of acid and alkali compatible with anionic, cationic, and nonionic surfactants Properties Lt, d. yel. liq. sp.gr. 1.03 dens. 8.70 Ib/gal vise. 25 cps pH (1 %) 6.5 35% act. 

Uses Emulsifer, stabilizer, pearlizer, opacifier for hand dishwashing detergents, rinses, cosmetics, liquid hand soaps, body cleaners, and shampoos Features Compat. with cationic, amphoteric, anionic and nonionio surfactants Properties Wh. flake HLB 1 acid no. 6 max. sapon. no 190-200 100% solids Canocol EGDS-35 [Centro China]... 

Uses Surfactant for hand dishwashing detergents, foam boosters, liq. and alkaline resistant cleaners Features Stable to oxidation Properties Colorless to pale yel., cl. liq. 30% cone. 

Uses Surfactant, detergent, and foaming agent for iiq. hand dishwashing detergents, shampoos, hand soaps, iiq. and powdered bubbie baths Features Compat. with most anionic, nonionic and amphoteric surfactants Properties Ci. iiq. sp. gr. 1.05 Brookfieid vise. 120 mPa.s 38% cone. 

Uses Surfactant, detergent, and foam control agent in bath prods., body washes, facial cleansers, hard surf, cleaners, liq. soaps, shampoos, and hand dishwashing detergents... 

Uses Solubilizer nonirritating surfactant imparting soft, emollient feel on skin and conditioning effect on hair foamer in toiletries, hand dishwashing detergents, and personal care prods. 

Dishwasher surfactants must not generate a lot of foam because that can block the pipes within the machine, as you may have discovered when, having run out of dishwasher detergent, you have simply tried using some hand washing-up liquid instead. The surfactants in dishwash products are low-foam non-ionic ones such as fatty alcohol ethoxylates, especially those in which the hydrocarbon chain is 12-14 carbon atoms long. These produce almost no foam. 

Shampoos are liquid detergents designed to clean hair and scalp. They bear some resemblance to hand dishwashing liquids in that they are essentially builder-free surfactant solutions. 

Unlike sodium LAS, alcohol ether sulfates are more tolerant to hardness ions and as a result do not require an accompanying high level of builder in the formulation. Figure 8.11 shows the relative insensitivity of AEOS to hardness ions. Small amounts of AEOS when added to LAS were found to improve the interfacial properties. They are more compatible with enzymes, which can also reduce the cost of enzyme stabilizers in the formulation. They are also milder to the skin and, as a result, are frequently used in hand dishwashing applications. The superior detergency performance of this surfactant is demonstrated by its superior efficacy in most stain categories. 

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