AU2004234413B2 - Colorant for foliage of humic and/or fulvic acid, and dye - Google Patents

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

Info

Publication number
AU2004234413B2
AU2004234413B2 AU2004234413A AU2004234413A AU2004234413B2 AU 2004234413 B2 AU2004234413 B2 AU 2004234413B2 AU 2004234413 A AU2004234413 A AU 2004234413A AU 2004234413 A AU2004234413 A AU 2004234413A AU 2004234413 B2 AU2004234413 B2 AU 2004234413B2
Authority
AU
Australia
Prior art keywords
composition
acid
dye
colorant
foliage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU2004234413A
Other versions
AU2004234413A1 (en
Inventor
Douglas John Hughes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Australian Agricultural Chemicals Pty Ltd
Original Assignee
Australian Agricultural Chemicals Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2003902064A external-priority patent/AU2003902064A0/en
Application filed by Australian Agricultural Chemicals Pty Ltd filed Critical Australian Agricultural Chemicals Pty Ltd
Priority to AU2004234413A priority Critical patent/AU2004234413B2/en
Publication of AU2004234413A1 publication Critical patent/AU2004234413A1/en
Application granted granted Critical
Publication of AU2004234413B2 publication Critical patent/AU2004234413B2/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

Links

Landscapes

  • Cultivation Of Plants (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

WO 2004/096920 PCT/AU2004/000422 COLORANT FOR FOLLIAGE OF HUMID AND/OR FULVIC ACID, AND DYE FIELD OF THE INVENTION The present invention relates to a colorant composition. In particular, the present invention relates to a colorant composition suitable for colouring foliage 5 and in particular turf grass. Although the present invention will be described with particular reference to this application, it will be appreciated that the composition may find other applications and no limitation is intended thereby. BACKGROUND OF THE INVENTION Turf grasses are widely used in recreational areas, parks, golf courses, 10 bowling greens, athletic fields and domestic lawns. There is a demand for turf to have a uniform green colour so as to provide a pleasing appearance. This is particularly so for televised sporting events where it is desirable that a playing field have a healthy looking and uniform green colour. However, under adverse conditions such as drought and frosts, grass can lose its natural colour and in 15 some circumstances change to an undesirable appearance. Turf colorants that can impart a green colour to discoloured turf have been developed with a view to artificially returning a playing field to a desirable colour or to simply make the turf appear more robust and healthy. Green colorants are also used to colour sand and in particular, divot sand as used on golf courses. 20 A green colorant that is widely used commercially is a pigment based colorant comprising a water insoluble pigment suspended in an aqueous solution. In practice, application problems may be experienced when applying pigment based colorants. Such problems include blockage of application nozzles and equipment cleaning difficulties. 25 Other colorants for use in the agricultural industry are also available. Such colorants are based on water soluble dyes. As the dyes are water soluble, the above-mentioned application difficulties associated with pigment based colorants are generally not experienced. The dye based colorants typically contain blue or red dyes and are used as markers for spraying herbicides, insecticides and the 30 like. Blue colorants are also used to impart a blue colour to water features. The blue dyes may also be used on turf but impart a blue colour, which is generally not considered desirable.
WO 2004/096920 PCT/AU2004/000422 2 However, there are some concerns regarding repeated use of pigments on playing fields and the like for a number of reasons. First, there are potential toxicity problems to those spraying the dyes and those playing on, or otherwise using the field. Although pigments commonly used to colour turf are considered 5 safe to human health, there are few, if any, studies on long term exposure of these chemicals. Still further, there may be potential environmental hazards associated with build up of these chemicals in the environment as a result of repeated spraying. Generally a respray is necessary whenever the grass is cut. In some cases, a playing field may be sprayed at weekly or fortnightly intervals 10 immediately prior a match or game being played on the field. It is therefore an object of the present invention to provide an alternative colorant composition that is suitable for use on turf or other suitable surfaces. DESCRIPTION OF THE INVENTION According to a first broad form of the invention there is provided a colorant 15 composition comprising humic acid, fulvic acid or a mixture thereof and a water soluble dye. The present inventor has surprisingly and unexpectedly discovered that by adding humic and/or fulvic acid to a colorant, the colour of the resulting composition may be intensified and/or modified. 20 Humic acids are the fraction of humic substances that are not soluble in water under acidic conditions (less than about 2) but are soluble at higher pH values. Fulvic acids are soluble under all pH conditions. Humic acid and fulvic acid are typically available and used in the form of aqueous solutions. Alternatively, these materials are available in solid form such 25 as powder or granules. Typically, the composition is prepared by combining the ingredients with water to provide a concentrated liquid solution. This solution may be diluted prior to use. Alternatively, the components may be mixed in dry form. The dry mixture may be dissolved to provide a concentrate for shipping and sale, or may be dissolved prior to use. 30 Preferred dyes for use in the composition of the present invention are anionic dyes. Whilst not wishing to be bound by theory it is believed that the WO 2004/096920 PCT/AU2004/000422 3 anionic dyes are less likely to precipitate in the presence of anionic components of humic and/or fulvic acid salts. Especially preferred dyes are those containing organic acid groups, e.g., sulfonic, sulfamic, phosphoric, carboxylic, etc., or their salts. Acid dyes are 5 commonly alkali metal such as sodium or potassium, or ammonium salts of an organic acid. Preferred dyes are salts of sulfonic acids such as 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 10 (Hydrogen [4- [4- (diethylamino)- 2', 4'- disulphonatobenzhydrylidene]cyclohexa 2, 5- dien- 1- ylidene]diethylammonium, sodium salt); acid blue 185 (CAS 1330 39-8); 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 I (Trisodium tris[5, 6 15 dihydro- 5- (hydroxyimino)- 6- oxonaphthalene- 2- sulphonato(2- )- N5, 06]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 of any two or more thereof. Other suitable colouring agents are the phthalocyanine pigments of 20 which Copper phthalocyanine blue or Pigment blue 15 is an example. Especially preferred are the acid blue dyes, of which a sample is mentioned above. Such blue dyes are often used to impart a blue colour to ponds and water features. Blue dyes are also used as marker dyes to assist in identifying which areas of vegetation have been sprayed with a herbicide, 25 insecticide or the like. Blue dyes may also be used as bases for green colorants. A yellow dye such as tartrazine (acid yellow 23) may be combined with the blue to provide a desired green colour. It will be appreciated that any combination of two or more colorants may also be used in the composition of the present invention. The selection and 30 formulation of such colorants will depend upon the desired result. This may be determined by one of skill in the art.
WO 2004/096920 PCT/AU2004/000422 4 The present inventor has also very surprisingly and unexpectedly discovered that the combination of humic and/or fulvic acid with a blue dye produces a green colorant without requiring the addition of further yellow dyes or colouring agents. 5 The relative amounts of humic and/or fulvic acid to the colorant may be varied depending upon the desired colour and end use. Suitably the composition may comprise between about 50:1 to about 1:30, preferably between about 30:1 to about 1:3 parts by weight of humic and/or fulvic acid and colorant. Similarly, the actual amounts of dye and humic and/or fulvic acid in the composition may be 10 varied according to the nature of the dye, desired colour and end use. Suitably the composition is supplied in a concentrated form and diluted for application. Suitably a composition may include between about 10 to about 30wt% humic and/or fulvic acid. The composition may also include other one or more additives known in 15 the art such as stabilizers, stickers, surfactants or other surface active agents, fertilizers, insecticides, fungicides, pesticides, herbicides, wetting agents and the like. Preferably, the composition includes one or more fertilizers, typically one or more water soluble fertilizers. Suitable fertilizers, combinations and amounts 20 thereof are known in the art of horticulture and in particular, turf management. Suitable fertilizers include nitrogen sources such as urea, ammonia sulfate, urea formaldehyde; phosphate and potassium. A preferred fertilizer is urea. The composition may also include a source of iron in the form of iron sulfate or chelated iron such as ferric EDTA. 25 The composition may also include a surfactant that may assist the composition to adhere or stick to the grass. Surfactants suitable for such use include alcohol ethoxylates, nonyl, phenyl ethoxylates, polyethylene/polypropylene block copolymers. The present invention also relates to a method for imparting colour to 30 foliage. The foliage is typically turf grass but may be any other suitable foliage.
WO 2004/096920 PCT/AU2004/000422 5 According to a further broad form of the invention, there is provided a method of imparting a colour to foliage, the method including applying a composition of the first broad form to the foliage. The composition may be applied by any suitable means known in the art, 5 such as by spraying. By way of example only, the present invention will now be described with reference to the following Examples. A composition was prepared by mixing an aqueous solution of 120kg humic and/or fulvic acid (calculated as dry humic and/or fulvic acid) with 7.5kg of 10 a dye known as "Brilliant Blue" with 1000kg water. (It is believed that the brilliant blue contains the dye acid blue 9). The composition was sprayed onto a turf grass field at a rate of 0.2L - 1L per 1OOm 2 diluted in 2 - 40L water. This equates to about 24g to about 120 humic and/or fulvic acid per 100m and 1.5 to 7.5g dye. A preferred rate of application is 0.5-1L per 1OOm 2 diluted in 5-10L 15 water. A green colour was imparted to the field. A further composition was prepared in the same manner but with the further addition of 150kg urea and 35kg ferric EDTA to the 1000kg water. Comparative trials were conducted by using aqueous compositions comprising either humic and/or fulvic acid or dye on their own in the same amounts and 20 application rates as used above. In both cases, no visible green colour was imparted to the field. A further trial was conducted using a green paint conventionally used to colour a playing field. 90kg of the paint was diluted in 1000kg water before spraying as above. 25 It was observed that in the case of the composition of the invention and the commercially available green colorant, a green colour was imparted to the field. However, the composition of the invention achieved a similar colour intensity with significantly less colorant than that required using the conventional formulation. 30 Still further, it was surprisingly and unexpectedly observed that the composition of the invention imparted a green colour that was observed to be a far more natural colour and representative of a naturally green field. On the other WO 2004/096920 PCT/AU2004/000422 6 far more natural colour and representative of a naturally green field. On the other hand, the conventional green paint imparted a colour that was observed to be somewhat artificial as compared with a natural grass colour. The present inventor is unaware of a commercially available green turf colorant that imparts a 5 natural green colour. A further advantage of being able to impart a natural green colour to a field is that treated turf can more easily blend in with untreated turf. Such a situation may arise where there are patches of damaged turf to be repaired. Generally, with prior art compositions it is necessary to also spray untreated turf to provide a uniform green colour. This may not be necessary with 10 the preferred composition of the invention. Still further, the inventive composition was not observed to have any of the aforementioned application difficulties associated with the use of a pigment based colorant, i.e. clogging and/or blockage of applicator nozzles and the like. The present inventor is also unaware of a commercially available green turf 15 colorant that is based on a dye as opposed to a pigment. It may be seen that the composition of the present invention allows significantly less dye material to be used in order to impart a level of colour comparative to conventional formulations. This ability to decrease the levels of chemical colorants required can reduce potential health risks for workers 20 applying the chemicals, can reduce the build up of chemical residues in the environment and further, due to the decreased amount of colorant can reduce costs. (Humic and/or fulvic acid being less expensive than the available colorants). In the specification the term "comprising" shall be understood to have a 25 broad meaning similar to the term "including" and will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. This definition also applies to variations on the term "comprising" such as "comprise" and "comprises". 30 It will be appreciated that various changes and modifications may be made to the invention as described herein without departing from the spirit and scope thereof.

Claims (16)

1. A colorant composition when used for imparting colour to foliage, the composition comprising a humic acid, fulvic acid or a mixture thereof and a water 5 soluble dye.
2. The composition of claim 1, further comprising water.
3. The composition of claim 2, wherein the dye is an anionic dye. 10
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. 15
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 20 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 25 (Trisodium tris[5, 6- dihydro- 5- (hydroxyimino)- 6- oxonaphthalene- 2 sulphonato(2- )- N5, 06]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. 30
7. The composition of claim 4, wherein the dye is an acid blue dye. 8
8. The composition of any one of claims 2 to 7 comprising between about 30:1 to about 1:3 parts by weight humic acid and/or fulvic acid to colorant.
9. The composition of any one of claims 2 to 8, which further comprises a 5 water soluble fertilizer.
10. The composition of claim 9 wherein the fertilizer is urea and/or a source of iron in the form of iron sulfate or chelated iron. 10
11. The composition of claim 10 wherein the chelated iron is ferric EDTA.
12. The composition of any one of claims 2 to 11, which further comprises a surfactant. 15
13. A colorant composition substantially as hereinbefore described with reference to the Examples.
14. A method of imparting a colour to foliage, the method including applying a composition of any one of claims 2 to 13 to the foliage. 20
15 The method of claim 14, wherein the foliage is turf grass.
16. The method of claim 14 or claim 15, wherein between about 24 to about 120g humic and/or fulvic acid and between about 1.5 to about 7.5g dye are 25 applied per 1OOm 2 turf grass. DATED THIS THIRTEENTH DAY OF OCTOBER 2005 AUSTRALIAN AGRICULTURAL CHEMICALS BY 30 PIZZEYS PATENT AND TRADE MARK ATTORNEYS
AU2004234413A 2003-04-30 2004-04-01 Colorant for foliage of humic and/or fulvic acid, and dye Expired AU2004234413B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2004234413A AU2004234413B2 (en) 2003-04-30 2004-04-01 Colorant for foliage of humic and/or fulvic acid, and dye

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2003902064A AU2003902064A0 (en) 2003-04-30 2003-04-30 Colouring agent for turf
AU2003902064 2003-04-30
PCT/AU2004/000422 WO2004096920A1 (en) 2003-04-30 2004-04-01 Colorant for foliage of humic and/or fulvic acid, and dye
AU2004234413A AU2004234413B2 (en) 2003-04-30 2004-04-01 Colorant for foliage of humic and/or fulvic acid, and dye

Publications (2)

Publication Number Publication Date
AU2004234413A1 AU2004234413A1 (en) 2004-11-11
AU2004234413B2 true AU2004234413B2 (en) 2010-04-22

Family

ID=35385223

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2004234413A Expired AU2004234413B2 (en) 2003-04-30 2004-04-01 Colorant for foliage of humic and/or fulvic acid, and dye

Country Status (1)

Country Link
AU (1) AU2004234413B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619078A1 (en) * 1985-06-07 1986-12-11 Ricoh Co., Ltd., Tokio/Tokyo Process for preparing a colorant
JPH0565425A (en) * 1991-09-06 1993-03-19 Dainichiseika Color & Chem Mfg Co Ltd Red azo pigment composition and its production
US20020182234A1 (en) * 2000-12-19 2002-12-05 Beiersdorf Aktiengesellschaft Self-foaming or foam-like preparations
US20030118621A1 (en) * 2001-09-07 2003-06-26 Thomas Heidenfelder Cosmetic and dermatological preparations in stick form, comprising an amino-substituted hydroxybenzophenone

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619078A1 (en) * 1985-06-07 1986-12-11 Ricoh Co., Ltd., Tokio/Tokyo Process for preparing a colorant
JPH0565425A (en) * 1991-09-06 1993-03-19 Dainichiseika Color & Chem Mfg Co Ltd Red azo pigment composition and its production
US20020182234A1 (en) * 2000-12-19 2002-12-05 Beiersdorf Aktiengesellschaft Self-foaming or foam-like preparations
US20030118621A1 (en) * 2001-09-07 2003-06-26 Thomas Heidenfelder Cosmetic and dermatological preparations in stick form, comprising an amino-substituted hydroxybenzophenone

Also Published As

Publication number Publication date
AU2004234413A1 (en) 2004-11-11

Similar Documents

Publication Publication Date Title
US7678160B2 (en) Colorant for foliage of humic and/or fulvic acid, and dye
NZ543051A (en) Methods for treating inflammatory conditions or inhibiting JNK using pyrazoloanthrone derivatives
HU186384B (en) Synergetic phosphinothricine combinations
US20070037720A1 (en) Removable marking system
Bailey et al. Glyphosate interactions with manganese
US20080113868A1 (en) Colorant compositions and their use as pH sensitive color indicators
US20170156343A1 (en) Protein compositions for plant treatment
JP5835870B2 (en) Liquid snowmelt fertilizer
US20120309624A1 (en) Solid Moss Control Composition
US20050274164A1 (en) Combination grass colorant and fertilizer
DE3215654A1 (en) BIOACTIVE COATING AND FIXING DEVICE FOR PLANT PROTECTION
AU2004234413B2 (en) Colorant for foliage of humic and/or fulvic acid, and dye
EP1268680B1 (en) Process for temporary demarcation of regulation distances in sports
CA1196793A (en) Plant growth-inhibiting agents
JP2011162425A (en) Colored fertilizer for plant
JPH01157904A (en) Method for controlling disease injury of lawn
CA1083375A (en) Foliar applications of urea-polyphosphate-potassium solutions to crops
JPH11137084A (en) Colorant for vegetational grass and coloring of vegetational grass
US7396801B1 (en) Moss control composition
EP0132900B1 (en) Process for identifying a location to which a substance has been applied
JP6025930B2 (en) Liquid snowmelt fertilizer
US8192993B1 (en) Formulations for imparting traceability and/or trackability to one or more chemicals
JPH03164115A (en) Lustering agent of foliar surface
JPH0528202B2 (en)
KR100381384B1 (en) Defoliant for deciduous fruit trees and deciduous greening trees

Legal Events

Date Code Title Description
MK1 Application lapsed section 142(2)(a) - no request for examination in relevant period
NA Applications received for extensions of time, section 223

Free format text: AN APPLICATION TO EXTEND THE TIME FROM 28 FEB 2008 TO 28 JUL 2008 IN WHICH TO PAY THE EXAM FEE HAS BEEN FILED .

NB Applications allowed - extensions of time section 223(2)

Free format text: THE TIME IN WHICH TO PAY THE EXAM FEE HAS BEEN EXTENDED TO 28 JUL 2008.

FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired