Colorant for foliage of humic and/or fulvic acid, and dye

• US 20060282961A1
• Filed: 04/01/2004
• Published: 12/21/2006
• Est. Priority Date: 04/30/2003
• Status: Active Grant

• Current Assignee: Australian Agricultural Chemicals
• Original Assignee: Australian Agricultural Chemicals
• Inventors: Hughes, Douglas John
• Granted Patent: US 7,431,743 B2
• Time in Patent Office: Days
• US Class Current: 8/550
• CPC Class Codes: C09B 67/0073 Preparations of acid or reactive dyes in liquid form

Abstract

The invention relates to a colorant composition comprising humic acid and/or fulvic acid and a water soluble dye. The invention in particular relates to a colorant composition to be used for turf.

Claims

1. A colorant composition comprising a humic acid, fulvic acid or a mixture thereof and a water soluble dye.

2. The composition of claim 1, further comprising water.

3. The composition of claim 1 or claim 2, wherein the dye is an anionic dye.

4. The composition of claim 3, wherein the dye contains an organic acid group or a salt thereof.

5. The composition of claim 4, wherein the dye is a salt of a sulfonic acid.

6. The composition of claim 5, wherein the dye is selected from the group consisting of acid blue 62 (Sodium 1-amino-4-(cyclohexylamino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate);

acid blue 74 (Disodium 5,5′

-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate);

acid blue 1 (Hydrogen [4-[4-(diethylamino)-2′

,4′

-disulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene]diethylammonium, sodium salt);

acid blue 185;

acid blue 9 (Dihydrogen (ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)]amino]-2′

-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)ammonium or disodium salt);

acid green 1 (Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-) and acid green 50 (Hydrogen [4-[4-(dimethylamino)-a-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium, monosodium salt) or mixtures or any two or more thereof.

7. The composition of claim 4, wherein the dye is an acid blue dye.

8. The composition of claim 3 comprising between about 30:

1 to about 1;

3 parts by weight humic acid and/or fulvic acid to colorant.

9. The composition of claim 2, which further comprises a water soluble fertilizer.

10. The composition of claim 2, which further comprises a surfactant.

11. A method of imparting a colour to foliage, the method including applying a composition of claim 2 to the foliage.

12. The method of claim 11, wherein the foliage is turf grass.

13. The method of claim 12, wherein the colorant is an acid blue dye.

14. The method of claim 13, wherein the between about 24 to about 120 g humic and/or fulvic acid and between about 1.5 to about 7.5 g dye are applied per 100 m² turf grass.