Detergent bars

Sodium isethionate is an amphoteric detergent used in detergent bar soaps. It makes a dense lather in addition to the lather made by the soap. It is nondrying and mild on the skin. It works equally well in soft or hard water. It is also an antistatic agent in shampoos. 

Incorporation of a perfume into PCL or a PCL-polyolefin blend is reported to be a useful method of retaining the fragrance in soaps and detergent bars (81). 

Detergent bars are either 100% synthetic detergent or a blend of detergent and soap. They are blended in essentially the same manner as conventional soap. Fairly frequent cleanups generate a wastewater stream. A process flow diagram is shown in Figure 19. 

Principal use of these products as detergents occurred during World War II when they were used with fatty acid soaps in formulating army all-purpose detergent bars (25). Their low molecular weight and high water solubility limited their value for use alone in efficient detergent formulations. 

These products can be found in light-duty liquids and in some shampoos and detergent bars and are primarily used to enhance skin emolliency and Mcleaning ability. ... 

Simion, F., Rhein, L., Morrison, B., Scala, D., Salko, D., Kligman, A., and Grove, G., Self perceived sensory responses to soap and synthetic detergent bars correlate with clinical signs of irritation. J. Am. Acad. Dermatol. 32 205-211, 1995. 

An anionic surfactant unsuitable for use in a detergent bar for washing hands... 

LJ Vinson, EL Ambye, AG Beimett, WC Schneider, 11 Travers. In vitro tests for measuring antibacterial activity of toilet soap and detergent bars. J Pharm Sci 50 827, 1961. 

Soap and detergent Emollient and thickener for detergent bars and liquids... 

PCBs in detergent bars leaving the manufacturing site or imported into the United States at concentrations equal to or greater than 5 ppm ° PCB remediation waste at any concentration if resulting from a spill or release of PCBs greater than or equal to 50 ppm after July 2,1979, or > 500 ppm after April 19,1978 but prior to July 2,1979 and remediation wastes which are at any concentration of PCBs if the PCBs are from a source not authorized under Part 761. 

Chem. Descrip. Sodium cetyl sulfate CAS 1120 1-0 EINECS/ELINCS 214-292-4 Uses Emulsifier, detergent for textiles, paints, shampoos, hand creams, lotions, detergent bars flotation agent collector in ore flotation softener, lubricant for textiles, esp. cotton or rayon fibers primary surfactant and post stabilizer for acrylic and vinyl-acr ic latex emulsions Regulatoty FDA clearance... 

Formula RC0-0CH2CH2S03Na, RCO- rep. fatty acids derived from coconut oil Properties Wh. powd. anionic Toxicology TSCA listed Uses Surfactant, dispersant, foaming agent, conditioner for detergent bars, dentifrices, shampoos, bubble baths, other cosmetics, topical pharmaceuticals detergent base lime soap dispersant antistat for thermoplastics Regulatory Approved for topicals Trade Name Synonyms Arlatone SCI t[Uniqema Uniqema Am. http //www.uniqema.com], Elfan AT 84 [Akzo, Nobel http //www.akzonobel.com, Akzo Nobel bv http //www.akzonobel.com,... 

Nonsoap detergent bars do not contain soaps. They are synthetic detergents made from petroleum derivatives (Table 6.3) [1-3]. 

Germicides can also be included in detergent bars. As for toilet soaps, TCC or Triclosan can be used. 

Main Ingredients with Their Functions in Nonsoap Detergent Bars... 

Synthetic detergent bars deliver much of the same chemistry to the wash as heavy-duty granules. The primary cleaning power comes from anionic surfactants along with phosphate builders such as sodium tripolyphosphate (STPP) and tetra sodium pyro phosphate (TSPP). In India, Latin America, and Africa, LAS is used as the main surfactant, whereas in the Philippines, a combination of alcohol sulfates (preferably coconut based) and LAS is used as the surfactant system. In premium bars, STPP is the preferred builder as it offers, in addition to excellent hardness binding capacity. 

Franz TJ (1975) Percutaneous absorption. On the relevance of in vitro data. J Invest Dermatol 64 190-195 Frosch PJ (1982) Irritancy of soap and detergent bars. In Frost P, Horwitz SN (eds) Principles of cosmetics for the dermatologist. CV Mosby, St. Louis, pp 5-12 Frosch PJ, Kligman AM (1977) A method for appraising the stinging capacity of topically applied substances. J Soc Cosmetic Chemists 28 197-207... 

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