A method of laundering fabric including the steps of: (a) contacting a detergent composition including: (i) detersive surfactant; (ii) phenolic antioxidant (iii) percarbonate; (iv) optionally, a bleach activator capable of forming C.sub.1-C.sub.11 alkyl substituted peroxycarboxylic acid; and (iv) hueing dye, with water to form a wash liquor including from 60 ppm to 2750 ppm detersive surfactant, from 0.1 ppm to 200 ppm phenolic antioxidant, from 10 ppm to 3000 ppm percarbonate, optionally from 2 ppm to 1000 ppm bleach activator, and from 0.005 to 500 pm hueing dye, and from 0.001 ppm to 10.0 ppm iron, and having a pH in the range of from greater than 7.0 to 12.0; (b) contacting fabric with the wash liquor; and (c) laundering the fabric.

The invention concerns a detergent composition, comprising: (a) from 1 to 40 wt. % of a secondary alkane sulfonate surfactant with an average of 15 to 18 carbon atoms in a linear alkane chain; (b) from 1 to 40 wt. % of an anionic surfactant other than a); and, (c) from 0.01 to 8%, of an alkyl hydroxysultaine co-surfactant; and wherein greater than 50 wt. % of the alkyl chain of the secondary alkane sulfonate is C15 to C18, secondary alkane sulfonate; the invention also concerns a method, preferably a domestic method of treating a textile.

Fused and unfused bicyclic rings are a convenient scaffold for synthesizing various compounds. Amphiphilic compounds constructed upon a fused or unfused bicyclic ring scaffold may exhibit surfactant properties differing from those of more conventional classes of surfactants. Such amphiphilic compounds may have a structure of formula (I), wherein A is an aromatic ring, a heteroaromatic ring, or a cycloaliphatic ring, each ring being defined by 5 to 10 ring atoms, B is an aromatic ring or a heteroaromatic ring, each ring being defined by 5 to 6 ring atoms, wherein at least one G is a hydrophobic moiety and at least one G is a hydrophilic moiety, and z is 0 or a positive integer ranging up to the number of ring atoms in each of A and B; and wherein the hydrophobic moiety comprises branched or unbranched C.sub.6 to C.sub.30 alkyl or alkenyl group, and the hydrophilic moiety comprises a polar functional group selected from the group consisting of quaternary ammonium, sulfonate, sulfate, carboxylate, phosphate, and ethoxylated.

##STR00001##

An anionic surfactant of general formula (I) in which n and m are, independently of one another, numbers from 0 to 17 and 2<n+m<20, and X.sup.+ is a charge-balancing cation. The invention also relates to a production method by way of: the acid-catalysed reaction of 2,5-bis(hydroxymethyl) tetrahydrofuran with an alkene having 5 to 22 C atoms in equimolar amounts, at an increased temperature; subsequent sulphation with a sulphating agent; and optional neutralisation by a subsequent reaction with ##STR00001##
X.sup.+OH.sup.− or X.sup.+.sub.2 CO.sup.2−.sub.3, where X.sup.+ is an alkali metal cation or a group N.sup.+R.sup.1R.sup.2R.sup.3, in which R.sup.1, R.sup.2 and R.sup.3 are, independently of one another, hydrogen, an alkyl group with 1 to 6 C atoms, or a hydroxyalkyl group with 2 to 6 C atoms. Detergents or cleaning agents containing—the surfactant, and the use of same to improve the performance of the detergents or cleaning agents, are also disclosed.

An anionic surfactant of general formula (I) in which n and m are, independently of one another, numbers from 0 to 17 and 2<n+m<20, and X.sup.+ is a charge-balancing cation. The invention also relates to a production method by way of: the acid-catalysed reaction of 2,5-bis(hydroxymethyl) tetrahydrofuran with an alkene having 5 to 22 C atoms in equimolar amounts, at an increased temperature; subsequent sulphation with a sulphating agent; and optional neutralisation by a subsequent reaction with ##STR00001##
X.sup.+OH.sup.− or X.sup.+.sub.2 CO.sup.2−.sub.3, where X.sup.+ is an alkali metal cation or a group N.sup.+R.sup.1R.sup.2R.sup.3, in which R.sup.1, R.sup.2 and R.sup.3 are, independently of one another, hydrogen, an alkyl group with 1 to 6 C atoms, or a hydroxyalkyl group with 2 to 6 C atoms. Detergents or cleaning agents containing—the surfactant, and the use of same to improve the performance of the detergents or cleaning agents, are also disclosed.

Use of a furan-based surfactant in a detergent for reducing or preventing irritancy during use.

Use of a furan-based surfactant in a detergent for reducing or preventing irritancy during use.

A solid block detergent composition is described which can be dispensed with a water spray to form an aqueous detergent for cutting and removing grease, removing and suspending soils and rinsing easily leaving cleaned ware. The solid block detergent contains a neutralized sulfonated anionic surfactant in combination with various processing aids to optimize soil removal in a formulation that can be pressed for form a solid.

The present disclosure provides derivatives of amino acids that have surface-active properties. The amino acid can be naturally-occurring or synthetic, or they may be obtained via a ring-opening reaction of a lactam, such as caprolactam. The amino acid may be functionalized to form a compound that is surface-active and have advantageous surfactant characteristics. The compounds of the present disclosure have low critical micelle concentrations (CMC) as well as superior ability to lower the surface tension of a liquid.

The present disclosure provides derivatives of amino acids that have surface-active properties. The amino acid can be naturally-occurring or synthetic, or they may be obtained via a ring-opening reaction of a lactam, such as caprolactam. The amino acid may be functionalized to form a compound that is surface-active and have advantageous surfactant characteristics. The compounds of the present disclosure have low critical micelle concentrations (CMC) as well as superior ability to lower the surface tension of a liquid.