Solid composition for textile treatment

A dosing unit for use in treatment of textiles, wherein the dosing unit comprises at least two chambers with walls made of a water-soluble material, and wherein

• a) at least one of the chambers includes a first composition, the first composition comprising at least one surfactant, and
• b) at least one additional one of the chambers includes a second composition comprising, each based on the total weight of the second composition, a total amount of:
• from about 32% to about 55% by weight of sodium percarbonate,
• from about 10% to about 20% by weight tetraacetylethylenediamine,
• from about 7.5% to about 30% by weight of sodium hydrogen carbonate,
• from about 1% to about 3% by weight of a surfactant,
• wherein the total amount of organic compound in the second composition amounts to from about 10% to about 50% by weight;
• and
• wherein the second composition is free of sodium silicate.

A method for treatment of textiles wherein the method comprises the steps of:

• dosing a composition for producing a wash liquor that comprises water, wherein the composition further comprises, each based on the total weight of the composition, a total amount of:
• from about 32% to about 55% by weight of sodium percarbonate,
• from about 10% to about 20% by weight traacetylethylenediamine,
• from about 7.5% to about 30% by weight of a hydrogen carbonate,
• from about 1% to about 3% by weight of a surfactant,
• wherein the total amount of organic compound in the composition amounts to from about 10% to about 50% by weight, and the composition is free of sodium silicate;
• and
• bringing the resulting wash liquor in contact with the textiles.