Detergent package for laundering clothes
First Claim
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1. A detergent package containing detergent for laundering clothes, said detergent package comprising:
- A. a water-impermeable container having a removable cap having a given volume; and
B. an indicator strip carried by the container, said indicator strip being adapted to undergo a physical change upon contact with a sample of water, said physical change being visually perceptible and indicative of the amount of detergent necessary to effectively launder clothes in water from which the sample of water was obtained, said indicator strip comprising;
a first dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 50 ppm hardness, said first dot comprising paper impregnated with a solution comprising 0.085% by weight cyclohexylene dinitrilotetraacetic acid, 0.770% by weight tris(hydroxymethyl) aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.725% by weight deionized water;
a second dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 110 ppm hardness, said second dot comprising paper impregnated with a solution comprising 0.135% by weight cyclohexylene dinitrilotetraacetic acid, 0.770% by weight tris(hydroxymethyl)aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.675% by weight deionized water;
a third dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 200 ppm hardness, said third dot comprising paper impregnated with a solution comprising 0.165% by weight cyclohexylene dinitriolotetraacetic acid, 0.770% by weight tris(hydroxymethyl)aminomethane, aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.645% by weight deionized water;
a fourth dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 300 ppm hardness, said fourth dot comprising paper impregnated with a solution comprising 0.242% by weight cyclohexylene dinitrilotetraacetic acid, 0.770% by weight tris(hydroxymethyl)aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.568% by weight deionized water;
a fifth dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 400 ppm hardness, said fifth dot comprising paper impregnated with a solution comprising 0.363% by weight cyclohexylene dinitriolotetraacetic acid, 0.770% by weight tris(hydroxymethyl) aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.447% by weight deionized water;
wherein the amount of detergent indicated by the indicator strip is expressed as a multiple of the volume of the cap.
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Abstract
A detergent package having a cap of a given volume is described.
The package has an indicator strip adapted to undergo a physical change upon contact with a sample of water. The physical change is visually perceptible and indicative of the amount of detergent necessary to effectively launder clothes in the water. The amount of detergent indicated by the indicator strip is expressed as a multiple of the volume of the cap.
The use of the package is also described.
25 Citations
1 Claim
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1. A detergent package containing detergent for laundering clothes, said detergent package comprising:
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A. a water-impermeable container having a removable cap having a given volume; and B. an indicator strip carried by the container, said indicator strip being adapted to undergo a physical change upon contact with a sample of water, said physical change being visually perceptible and indicative of the amount of detergent necessary to effectively launder clothes in water from which the sample of water was obtained, said indicator strip comprising; a first dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 50 ppm hardness, said first dot comprising paper impregnated with a solution comprising 0.085% by weight cyclohexylene dinitrilotetraacetic acid, 0.770% by weight tris(hydroxymethyl) aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.725% by weight deionized water; a second dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 110 ppm hardness, said second dot comprising paper impregnated with a solution comprising 0.135% by weight cyclohexylene dinitrilotetraacetic acid, 0.770% by weight tris(hydroxymethyl)aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.675% by weight deionized water; a third dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 200 ppm hardness, said third dot comprising paper impregnated with a solution comprising 0.165% by weight cyclohexylene dinitriolotetraacetic acid, 0.770% by weight tris(hydroxymethyl)aminomethane, aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.645% by weight deionized water; a fourth dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 300 ppm hardness, said fourth dot comprising paper impregnated with a solution comprising 0.242% by weight cyclohexylene dinitrilotetraacetic acid, 0.770% by weight tris(hydroxymethyl)aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.568% by weight deionized water; a fifth dot adapted to undergo a visually perceptible physical change upon contact with a sample of water containing at least 400 ppm hardness, said fifth dot comprising paper impregnated with a solution comprising 0.363% by weight cyclohexylene dinitriolotetraacetic acid, 0.770% by weight tris(hydroxymethyl) aminomethane, 0.380% by weight cresolphthalein complexone tetrasodium salt, 0.040% by weight starch and 98.447% by weight deionized water; wherein the amount of detergent indicated by the indicator strip is expressed as a multiple of the volume of the cap.
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Specification
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Current AssigneeThe Dow Chemical Company (Dow, Inc.)
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Original AssigneeThe Dow Chemical Company (Dow, Inc.)
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InventorsStoesser, P. Richard, Barr, Stephen W.
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Primary Examiner(s)WILLIS JR, PRINCE E
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Application NumberUS06/808,778Time in Patent Office1,544 DaysField of Search252/90-92, 252/134, 252/174, 252/93, 436/162, 206/459, 206/807, 8/137US Class Current510/100CPC Class CodesC11D 17/041 Compositions releasably aff...
