摘要:
The ability of aqueous laundry compositions to remove organic hydrophobic soils, such as oily, greasy or particulate soils, from a laundry item is substantially improved by pre-spotting or pre-treating such a soiled item with a treatment composition having a surfactant comprising a unique hydrophillic ethoxylate surfactant with less than two moles of ethylene oxide or a or blend of at least two surfactant compositions with a blended HLB value of about 7-12. The blend of surfactants with this HLB value penetrates soils and renders the soil more easily removed from the item using aqueous laundry detergent. The treatment composition can be used in a liquid or solid form and can be applied to individual laundry items in the form of a solid stick or liquid spray prior to introduction to the laundry machine. Laundry items can also be contacted in the laundry machine with the pre-spot or pre-treatment composition in the form of an aqueous presoak, preflush, prewash, or other step prior to the cleaning step. A preferred laundry machine comprises an institutional tunnel washer.
摘要:
A sanitizing fabric sour composition can comprise a peracid material. The sanitizing sour materials of the invention can be used in a laundry process in which soiled garments are contacted with the sanitizing sour following an alkaline detergent in a cleaning step. In the souring step, the garments are contacted with the peracid material that both neutralizes alkaline components and sanitizes the cleaned garment. The fabric sour process of the invention can be conducted at reduced temperatures while obtaining sufficient sanitization.
摘要:
Quaternary ammonium halides are prepared in solid form by reacting an alkyl or aralkyl halide with ammonia or an amine in a liquefied gas as the solvent.
摘要:
The rewettability of laundered fabrics, such as cotton fabrics, that are softened by the use of a laundry rinse is improved by using as the laundry rinse a rinse comprising an aqueous solution of a mixture of 20-75% by weight of N-octadecyl-N,N-dimethylamine oxide and 80-25% weight of N-dihydrogenatedtallow-N,N-dimethylammonium chloride as the fabric softener.
摘要:
Betaines are produced in solid form by reacting a tert-amine with a haloalkanoate salt when the reaction is conducted in a liquefied gas as the solvent. In a preferred embodiment, the tert-amine is an N-alkyldimethylamine, the haloalkanoate is sodium chloroacetate, and the liquefied gas is carbon dioxide.
摘要:
A pourable amine oxide composition which is suitable for use in detergent compositions is obtained by reacting a tert-amine with aqueous hydrogen peroxide in a nonionic surfactant as the sole organic solvent, at least a portion of the nonionic surfactant being a fatty alcohol ethoxylate or other compound corresponding to the formula Z[OC(Z')HCH.sub.2 ].sub.m OH in which Z is an alkyl group containing 4-30 carbons, Z' is hydrogen or an alkyl or hydroxyalkyl group containing 1-3 carbons, and m is an integer of 1-100. When the composition has a low water content, it is suitable for use in water-sensitive formulations, such as bar soaps and detergent concentrates.
摘要:
A tert-amine which contains an acid-activated color body precursor is treated to prevent it or a derivative thereof, e.g., an amine oxide, betaine, or quaternary ammonium compound, from turning pink when exposed to acidic conditions by contacting it with an inorganic sulfite selected from alkali metal sulfites and bisulfites, preferably sodium sulfite, at a temperature above 100.degree. C.
摘要:
Betaines are produced in solid form by reacting a tert-amine with an alkyl haloalkanoate and hydrolyzing the resultant quaternary ammonium ester when the tert-amine/alkyl haloalkanoate reaction is conducted in a liquefied gas as the solvent and the hydrolysis is conducted in a liquefied gas solvent or a polar aprotic solvent in which the betaine is substantially insoluble. In a preferred embodiment, the tert-amine is an N-alkyldimethylamine, the haloalkanoate is ethyl chloroacetate, and the liquefied gas is carbon dioxide.
摘要:
Laundry dryer sheets having a good loading of surfactant are prepared by (1) coating an absorbent flexible substrate with a molten tert-amine oxide wherein the molecules correspond to the formula RR'R"NO.nH.sub.2 O in which R is a primary alkyl group containing 9-24 carbons; R' is methyl, ethyl, or 2-hydroxyethyl; R" is independently selected from methyl, ethyl, 2-hydroxyethyl, and primary alkyl groups containing 8-24 carbons; and n is 0, 1, or 2, at least some of the molecules being dihydrate molecules, and (2) solidifying the amine oxide.
摘要:
Transparent soap bars are made by a process comprising mixing solid, non-hydroscopic trialkylamine oxide dihydrate with a fatty acid soap and other conventional ingredients such as triethanolamine, glycerine, water, perfume, and the like.