Cotton-gentle hypochlorite bleach

A method for ascertaining the natural fabric effect quality of a hypochlorite bleach composition, said quality in the range of fabric-damaging to abated-damaging to cotton-safe, said composition in the process of formulation or already existing,

• wherein the amounts of the essential components of a bleach composition are expressed in a ratio value as wt % alkali-metal hydroxide over wt % alkali-metal hypochloride-salt, or the reciprocal, which ratio value is selected to define the desired natural fabric effect quality of the composition (eg., 1:30 —fabric-damaging, 1:2 —cotton-safe, etc.),
• wherein a bleach composition so composed and set with a natural fabric effect quality must be characterized by the selected ratio value that defines said fabric effect quality,
• wherein said ratio value and the amount of an essential component are expressed as known factors of the ratio equation by which the amount of the other essential component is determined and limited,
• whereas, for an existing bleach composition the natural fabric effect quality is identified by the value of the bleach ratio calculated as the unknown term of a ratio equation, said calculated ratio value determined and limited by the amounts of the two essential components as known factors of the ratio equation,
• wherein a bleach composition composed with a pre-selected natural fabric effect quality in the range of damaging to abated-damaging to cotton-safe comprises,
• (a) an amount of an alkali-metal hypochlorite -salt, as a known factor of a ratio equation, said amount effective for cleaning stain from a soft-fabric article,
• (b) an amount of an alkali-metal hydroxide as an unknown term of the ratio equation, said amount calculated by (a) and (c),
• (c) a ratio value, as a known factor of the ratio equation, said value selected in the range 1:30 to 1:1, or reciprocal value selected in the range 30:1 to 1.1, to set the pre-selected quality of natural fabric effect of the bleach composition in the range of fabric-damaging to abated-damaging to cotton-safe;
• wherein the pH of said composition is at least 11.

An aqueous hypochlotie-salt bleach product for cleaning stain from a soft fabric article, the bleach product with two unique features;

• (i) a natural fabric safety quality on contacting a soft fabric article, said natural quality in the range of fabric-damaging to abated-damaging to cotton-safe;
• (ii) a weight concentration ratio, weight % alkali-metal hydroxide over weight % alkali-metal hypochlorite-salt, or the reciprocal, wherein the selected value of said ratio defines the natural fabric safety quality of the bleach product which can be sorted by the ratio value,
• wherein the aqueous bleach product comprises,
• (a) an amount of an alkali-metal hypochlorite -salt, effective for cleaning stain from a soft-fabric article,
• (b) an amount of an alkali-metal hydroxide as determined by (a), (c), and a ratio equation,
• (c) a ratio value, said value selected in the range 1:30 to 1:1, or reciprocal value selected in the range 30:1 to 1:1, to set the quality of natural fabric safety of the bleach product in the range of fabric-damaging to abated-damaging to cotton-safe;
• wherein the pH of said product is at least 11.