Alkaline builders

The composition of the builders in an alkaline cleaner is dependent on the metal substrate from which the soil is to be removed. For steel (qv) or stainless steel aggressive, ie, high pH, alkaline salts such as sodium or potassium hydroxide can be used as the main alkaline builder. For aluminum, zinc, brass, or tin plate, less aggressive (lower pH) builders such as sodium or potassium siUcates, mono- and diphosphates, borates, and bicarbonates are used. 

Scouring may be conducted on jigs, boil-off machines, or kettles, depending on fabric weight, constmction, and crease tendency ia the rope form. A combination of a synthetic detergent and soda ash is usually used and scouring is conducted at 85—100°C. Certain nylon blends may require less stringent conditions and the use of less alkaline builders, such as tetrasodium pyrophosphate. 

Where the alkaline constituents of the FW are low, or where simply raising BW cycles of concentration fails to provide adequate BW alkalinity without incurring risks of foaming, carryover, or similar problems, the use of an alkalinity booster (alkalinity builder) is recommended. 

Phosphoric acid esters of polyoxyalkylenes of a high degree of alkoxylation still show many properties of the base products [37,38], Thus these products derived from nonionics are only mildly anionic. They have a better performance in such applications as institutional and industrial cleansers with a high percentage of alkaline builders. 

BORCO AP is a versatile aid in scouring as well as in dyeing all fiber substrates. It possesses low foaming characteristics and has good detergent activity when used with alkaline builders such as Tetra sodium pyrophosphate (TSPP), soda ash or caustic soda. Maximum scouring results are obtained with the use of TSPP. 

CNC SPANSCOUR EPS can be combined with alkaline builders when heavy-duty scouring is needed. 

Macroemulsification For macroemulsification to be important, it is imperative that the interfacial tension between oily soil droplets and bath be low, so that emulsification can be accomplished with very little mechanical work. Here adsorption of surfactants at the oily soil-bath interface, with consequent lowering of the interfacial tensions, may play an important role. Emulsification was found to become a major factor when alkaline builders were added to a cleaning bath containing POE nonionic surfactant and the soil was mineral oil containing 5% oleic acid (Dillan, 1979). It is also involved in the suspension of liquefiable solid soil (Cox, 1987). 

Swastik Detergent Powdor. [Swastik] Sodium alkylaryl sulfonate with alkaline builders, STPP detergent powder. 

Sway. [Swastft] So um ylaryl sulfonate with STPP, alkaline builders, etc. heavy-duty detergent for cottons. 

Sodium carbonate is used as an alkaline builder in NSD powders and in a few locations as a neutralising agent for alkylbenzene sulphonic acids and as a chemical buffering agent during caustic soda neutralisation. It is commercially available in two forms, a light and dense powder. For the neutralisation process a 20% solution is prepared on site by dissolving sodium carbonate in water. 

BURCO HCS-50NF Is a highly alkaline stable surfactant designed for use in formulating concentrated liquid alkaline detergents. It is freely soluble in 50% caustic soda and high levels of other alkaline builders. 

MONA NF-10, NF-15 and NF-25 are low foaming anionic surfactants which are soluble in concentrated alkaline builder solutions. These products differ in their degree of electrolyte tolerance but each provides excellent detergency characteristics. They are recommended for use in spray, soak tank, in-place pipeline cleaners and floor scrubbing formulations. 

MONA NF products display the solubility characteristics of ionic surfactants in alkaline builder concentrates but, when diluted, they exhibit nonionic cloud point bahaviot. They ofer the following advantages ... 

MONATROPE 1296 is a low foaming organic phosphate ester surfactant which is utilized as a hydrotrope in formulating highly built liquid detergents for either household or Industrial applications. Because it is compatible and chemically stable, even in concentrated alkaline builder solutions, it is particularly effective as a solubilizer for nonionics and other detergents in high electrolyte systems. 

Excellent performance in hard water and in the presence of alkaline builders... 

Effective inhibitor during the acid piclcling of steel Stability through a wide pH and temperature range Excellent performance in hard water and in the presence of alkaline builders... 

TRITON Hydrotropes are anionic phosphate ester compounds that are highly efficient at solubilizing conventional and low-foam nonionic and anionic surfactants. In addition, these compounds function as highly efficient anionic surfactants in alkaline builder solutions. 

Completely stable and does not discolor when compounded with solid caustic or other alkaline builders. 

Alkanolamides based upon coconut, tallow, or oleyl radicals act as detergents, oil-in-water emulsifiers, lubricants, alkalinity builders (if excess alkanolamine is present), and conditioning agents. The amide function is known to cause slip and lubrication of equipment and to provide some cationic character for conditioning. Suitable alkanolamides include cocodiethanolamide and isopropanololey-lamide. See Table 2 for a typical formula. 

Uses SurfactanL detergent hydrotrope, and antistat for hard surf, cleaners, car/ truck wash detergents, laundry detergents and softeners, dry cleaning charge soaps corrosion inhibitor In muriatic, hydrofluoric, and sulforic adds on mild steel Features Exc. performance with nonlonic surfactants produces dense, stable foam alkyl phenol ethoxylate free does not contain conoslve chloride quats Properties Amber to reddish bm. liq. sol. in water, soivs., and In mod. levels of alkaline builders (phosphates, silicates) sp.gr. 1.07 dens. 8.92 Ib/gal vise. 750 cP doud pt. >100 C pH (1% aq.) 5.5 M% act. 

Chem. Descrip. Modified coconut oil diethanolamide Uses Surfactant for higher pH nonrusting cleaners, syn. and soap-syn, floor cleaners, heavy-duty cleaners, burnishing compds., degreasers, personal care prods. Features Compat, with alkaline builders pourable/pumpable R.T. 

Features Very low foaming stable on solid caustic and other alkaline builders stable over a wide pH range of 1.5 to 12... 

Uses Detergent, foaming agent for dishwashing detergents, industrial cleaners, shampoos, liq. detergents, heavy-duty alkaline cleaners, emulsifiers, textile mill bleach assistants, neutral and alkaline scouring, and bubble baths Features Mild effective in hard and soft water compat. with other anionics, nonionics, and alkaline builders... 

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