Removal of blood stains
AssigneeEcolab Inc.
InventorsKim R. Smith, Lynne Ann Olson
Life of this patent
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Abstract
A blood removing cleaning composition which may take the form of a detergent builder, detergent additive, or detergent pre-spotter, generally including an amount of amine compound effective to remove blood from fabric; and, optionally, an effective soil degrading amount of enzyme, wherein the composition is generally free of any neutral salt. In other preferred forms, the compositions disclosed herein may comprise surfactants, sources of alkalinity, and sequestrants, among other adjuvants.
Claims21
A method of removing blood stains from fabric, said method comprising the step of applying a cleaning composition to the fabric, said cleaning composition comprising a detergent additive comprising from about 95 to 99.9 wt-% of an amine compound, and from about 0.1 to 5 wt-% of an enzyme compound wherein said composition is free of neutral salts.
A detergent additive composition comprising:
- a) at least 95 wt-% amount of an amine compound effective to remove blood from fabric;
- and
- b) an effective soil degrading amount of enzyme, wherein said detergent additive composition is solvent-free and free of any neutral salt.
A method of removing blood stains from fabric, said method comprising the step of applying a cleaning composition to the fabric, said cleaning composition comprising a detergent builder comprising an effective blood removing amount of amine compound, an effective amount of a chelating agent comprising polyacrylic acid, effective to prevent the formation of precipitates, an amount of alkalinity source effective to provide a compositional pH in said detergent builder of from about 8 to 14, and a balance of water, wherein said detergent builder is free of neutral salt.
A method of removing blood stains from fabric, said method comprising the step of applying a cleaning composition to the fabric, said cleaning composition comprising a detergent builder comprising an effective blood removing amount of amine compound, an effective amount of a chelating agent effective to prevent the formation of precipitates, an amount of alkalinity source effective to provide a compositional pH in said detergent builder of from about 8 to 14 comprising a silicate compound, and a balance of water, wherein said detergent builder is free of neutral salt.
A method of destaining blood stained fabric using a detergent builder comprising an effective blood removing amount of amine compound, an amount of chelating agent effective to prevent the formation of precipitates, an amount of alkalinity source effective to provide a compositional pH in said detergent builder of from about 8 to 14, and a balance of water, wherein said detergent builder is free of neutral salt, said method comprising the steps of:
- a) combining said detergent builder with a detergent to form a cleaning composition;
- and
- b) applying said cleaning composition to the bloodstained fabric, wherein said cleaning composition comprises;
- a) from about 10 to 50 wt-% of diethanolamine;
- b) from about 0.1 to 5 wt-% of potassium hydroxide;
- c) from about 0.1 to 5 wt-% of polyacrylic acid;
- d) from about 5 to 10 wt-% of a silicate compound;
- e) from about 30 to 85 wt-% of water;
- f) from about 2 to 6 wt-% of trisodium nitriloacetate;
- and
- g) from about 30 to 70 wt-% of a detergent.
Dependencies are inferred from the claim text.