WO1998057544A1 - Improvements in or relating to disinfecting materials - Google Patents

Improvements in or relating to disinfecting materials Download PDF

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Publication number
WO1998057544A1
WO1998057544A1 PCT/GB1998/001599 GB9801599W WO9857544A1 WO 1998057544 A1 WO1998057544 A1 WO 1998057544A1 GB 9801599 W GB9801599 W GB 9801599W WO 9857544 A1 WO9857544 A1 WO 9857544A1
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WO
WIPO (PCT)
Prior art keywords
component
compartment
container
components
blue
Prior art date
Application number
PCT/GB1998/001599
Other languages
French (fr)
Inventor
Neale Mark Harrison
Rodney Thomas Fox
Philip William Goreham
Simon Thacker
Original Assignee
Reckitt & Colman Products Limited
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
Application filed by Reckitt & Colman Products Limited filed Critical Reckitt & Colman Products Limited
Priority to AU80260/98A priority Critical patent/AU8026098A/en
Publication of WO1998057544A1 publication Critical patent/WO1998057544A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment
    • A61L2/28—Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3956—Liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40—Dyes ; Pigments

Definitions

  • This invention relates to disinfecting materials and more particularly, but not exclusively, is concerned with toilet cleaners for disinfecting toilet bowls and the like.
  • Toilet cleaners are purchased by customers with a view to killing germs in the toilet bowl and also removing limescale and other stains.
  • conventional toilet cleaners are based on sodium hypochlorite or hydrochloric acid and, although these are effective germ killers, they do not provide any indication that germs have been killed and hence the customers cannot readily perceive that the cleaners have fulfilled their purpose in this respect.
  • a system for disinfecting a germ carrying body which system comprises two components wherein the first component comprises a disinfectant precursor and the second component comprises a compound which, on admixture with the first component, reacts with the precursor to form a disinfectant; wherein either component includes a substance which exhibits a colour change after a period of time has elapsed, subsequent to the application of the material to the body, which is at least as long as the time required for the material to disinfect the body.
  • the substance exhibiting the colour change is a bleachable dye, particularly a dye which is bleachable by the disinfectant.
  • the substance is preferably present in admixture with the first component .
  • the first component comprises the precursor in an amount of from 0.001 to 20 %, more preferably from 0.01 to 5 %, most preferably from 0.1 to 1 % by weight of the first component;
  • the second component comprises the compound in an amount of from 0.001 to 20 %, more preferably from 0.01 to 5 %, most preferably from 0.05 to 1 %, by volume of the second component; and one or more of the components comprises the substance in an amount of from 0.0001 to 2 %, more preferably from 0.001 to 0.5 %, most preferably from 0.01 to 0.1 %, by weight of the component (s) in which the substance is present.
  • each component is in the form of an aqueous solution.
  • each component additionally comprises additives such as stabilisers, buffers, preservatives, viscosity modifiers, perfumes and/or surfactants.
  • Suitable dyes are as follows :-
  • Acid Blue 182 such as Sandolan Blue E-HRL supplied by Clariant
  • C.I. Acid Blue 80 an anthraquinone dyestuff, such as Sandolan Milling Blue N-BL
  • C.I. Reactive Blue 113 such as Drimarene Blue K3GL supplied by Clariant
  • C.I. Reactive Blue 114 such as Drimarene Brilliant Blue K-BL;
  • Azo/copper complex dyestuffs such as Cartasol Blue GDF supplied by Clariant;
  • Anionic azo-dyes such as Cartasol Brilliant Violet 5BF.
  • a suitable bleaching agent which is formable from the two components is chlorine dioxide.
  • a suitable precursor is an alkali metal chlorite, preferably sodium chlorite which, when admixed with an acid such as hydrochloric acid, sulphamic acid or citric acid (preferably hydrochloric acid is used) , generates the chlorine dioxide.
  • the system is in the form of a container comprising: a first compartment for said first component, a second compartment for said second component, a first outlet for egress of a stream of first component from said first compartment, and a second outlet for egress of a stream of said second component from said second compartment, said outlets being arranged such that the streams impinge on one another and the first and second components become admixed together when the components are poured from the container.
  • the container is a double container comprising a first compartment 1 and a second compartment 2.
  • the compartments 1 and 2 have separate outlets 3 and 4 at the neck of the container and the container includes a common dividing wall 5 which extends beyond the outlets 3 and 4 to form a baffle 6. Both outlets 3 and 4 are sealed by a cap 7 threadingly connected to the neck of the container. Separate first and second components are accommodated in the first and second compartments 1 and 2 and are retained by the cap 7.
  • the cap 7 is unscrewed and the container is tilted so that a stream of the first component leaves the first compartment 1 via the first outlet 3 and a stream of the second component leaves the second compartment 2 via the second outlet 4.
  • the baffle 6 assists in causing these streams to intermingle and form a single stream of the mixed components.
  • Example A first component comprising an aqueous solution of sodium chlorite in an amount of 1% by weight of the first component and sufficient (0.02 % by weight) of the blue dye C.I. Acid Blue 182 to provide the first component with a blue colour was introduced into the first compartment 1 of a container as shown in the drawing.
  • a second component comprising an aqueous colourless solution of hydrochloric acid m an amount of 1% by volume of the second component was introduced into the second compartment 2 of the container.
  • the blue mixture had become colourless as the chlorine dioxide had completely bleached the blue dye. Thus the user could readily perceive that the material had killed the germs in the toilet bowl.
  • a system for disinfecting a germ carrying body which system comprises two components wherein the first component comprises a disinfectant precursor and the second component comprises a compound which, on admixture with the first component, reacts with the precursor to form a disinfectant; wherein either component includes a substance which exhibits a colour change after a period of time has elapsed, subsequent to the application of the material to the body, which is at least as long as the time required for the material to disinfect the body.
  • the precursor is an alkali metal chlorite
  • the compound is an acid
  • the disinfectant is chlorine dioxide
  • the substance is a bleachable dye which is in admixture with the first component, and each component is in the form of an aqueous solution.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Agronomy & Crop Science (AREA)
  • Inorganic Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention provides a system for disinfecting a germ carrying body which system comprises two components wherein the first component comprises a disinfectant precursor and the second component comprises a compound which, on admixture with the first component, reacts with the precursor to form a disinfectant; wherein either component includes a substance which exhibits a colour change after a period of time has elapsed, subsequent to the application of the material to the body, which is at least as long as the time required for the material to disinfect the body.

Description

Improvements in or relating to disinfecting materials
This invention relates to disinfecting materials and more particularly, but not exclusively, is concerned with toilet cleaners for disinfecting toilet bowls and the like.
Toilet cleaners are purchased by customers with a view to killing germs in the toilet bowl and also removing limescale and other stains. Typically, conventional toilet cleaners are based on sodium hypochlorite or hydrochloric acid and, although these are effective germ killers, they do not provide any indication that germs have been killed and hence the customers cannot readily perceive that the cleaners have fulfilled their purpose in this respect.
It is an object of the present invention to provide a material which will disinfect toilet bowls and -other bodies whilst also providing an indication that it has carried out its germ killing function.
According to the present invention there is provided a system for disinfecting a germ carrying body which system comprises two components wherein the first component comprises a disinfectant precursor and the second component comprises a compound which, on admixture with the first component, reacts with the precursor to form a disinfectant; wherein either component includes a substance which exhibits a colour change after a period of time has elapsed, subsequent to the application of the material to the body, which is at least as long as the time required for the material to disinfect the body.
Preferably, the substance exhibiting the colour change is a bleachable dye, particularly a dye which is bleachable by the disinfectant. The substance is preferably present in admixture with the first component .
Preferably the first component comprises the precursor in an amount of from 0.001 to 20 %, more preferably from 0.01 to 5 %, most preferably from 0.1 to 1 % by weight of the first component; the second component comprises the compound in an amount of from 0.001 to 20 %, more preferably from 0.01 to 5 %, most preferably from 0.05 to 1 %, by volume of the second component; and one or more of the components comprises the substance in an amount of from 0.0001 to 2 %, more preferably from 0.001 to 0.5 %, most preferably from 0.01 to 0.1 %, by weight of the component (s) in which the substance is present.
Preferably each component is in the form of an aqueous solution. Optionally each component additionally comprises additives such as stabilisers, buffers, preservatives, viscosity modifiers, perfumes and/or surfactants.
Suitable dyes are as follows :-
C.I. Acid Blue 182, such as Sandolan Blue E-HRL supplied by Clariant;
C.I. Acid Blue 80, an anthraquinone dyestuff, such as Sandolan Milling Blue N-BL; C.I. Reactive Blue 113, such as Drimarene Blue K3GL supplied by Clariant;
C.I. Reactive Blue 114 such as Drimarene Brilliant Blue K-BL;
Azo/copper complex dyestuffs such as Cartasol Blue GDF supplied by Clariant;
Anionic azo-dyes such as Cartasol Brilliant Violet 5BF.
A suitable bleaching agent which is formable from the two components is chlorine dioxide. In this case, a suitable precursor is an alkali metal chlorite, preferably sodium chlorite which, when admixed with an acid such as hydrochloric acid, sulphamic acid or citric acid (preferably hydrochloric acid is used) , generates the chlorine dioxide.
According to a preferred embodiment of the invention the system is in the form of a container comprising: a first compartment for said first component, a second compartment for said second component, a first outlet for egress of a stream of first component from said first compartment, and a second outlet for egress of a stream of said second component from said second compartment, said outlets being arranged such that the streams impinge on one another and the first and second components become admixed together when the components are poured from the container.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawing which shows a schematic cross section through a container in accordance with the invention .
Referring to the drawing, the container is a double container comprising a first compartment 1 and a second compartment 2. The compartments 1 and 2 have separate outlets 3 and 4 at the neck of the container and the container includes a common dividing wall 5 which extends beyond the outlets 3 and 4 to form a baffle 6. Both outlets 3 and 4 are sealed by a cap 7 threadingly connected to the neck of the container. Separate first and second components are accommodated in the first and second compartments 1 and 2 and are retained by the cap 7.
In use, the cap 7 is unscrewed and the container is tilted so that a stream of the first component leaves the first compartment 1 via the first outlet 3 and a stream of the second component leaves the second compartment 2 via the second outlet 4. The baffle 6 assists in causing these streams to intermingle and form a single stream of the mixed components.
The following Example illustrates the invention.
Example A first component comprising an aqueous solution of sodium chlorite in an amount of 1% by weight of the first component and sufficient (0.02 % by weight) of the blue dye C.I. Acid Blue 182 to provide the first component with a blue colour was introduced into the first compartment 1 of a container as shown in the drawing. A second component comprising an aqueous colourless solution of hydrochloric acid m an amount of 1% by volume of the second component was introduced into the second compartment 2 of the container.
On pouring some (about 20 ml which consisted of about 10 ml of each component) of the contents from the container into a toilet bowl, the streams of the first and second components intermingled to form a blue mixture prior to reaching the toilet bowl . The mixture reacted to form chlorine dioxide (C102) . This is an efficient germ killer and within 10 minutes it had disinfected the toilet bowl. It is known from microbiological tests that 10 minutes is a sufficient period of time for this amount of CIO, to disinfect a toilet bowl.
Within 15 minutes of the mixing together of the first and second components, the blue mixture had become colourless as the chlorine dioxide had completely bleached the blue dye. Thus the user could readily perceive that the material had killed the germs in the toilet bowl.
1. A system for disinfecting a germ carrying body which system comprises two components wherein the first component comprises a disinfectant precursor and the second component comprises a compound which, on admixture with the first component, reacts with the precursor to form a disinfectant; wherein either component includes a substance which exhibits a colour change after a period of time has elapsed, subsequent to the application of the material to the body, which is at least as long as the time required for the material to disinfect the body.
2. A system according to claim 1 wherein said substance is a dye bleachable by the disinfectant.
3. A system according to claim 1 or claim 2 wherein the first component comprises the precursor in an amount of from 0.001 to 20 % by weight of the first component, the second component comprises the compound in an amount of from 0.001 to 20 % by volume of the second component and one or more of the components comprises the substance in an amount of from 0.0001 to 2 %, by weight of the component (s) in which the substance is present.
4. A system according to any one of the preceding claims wherein the precursor is an alkali metal chlorite, the compound is an acid, the disinfectant is chlorine dioxide, the substance is a bleachable dye which is in admixture with the first component, and each component is in the form of an aqueous solution.

Claims

5. A system according to any one of the preceding claims which is in the form of a container comprising: a first compartment for said first component, a second compartment for said second component, a first outlet for egress of a stream of first component from said first compartment, and a second outlet for egress of a stream of said second component from said second compartment, said outlets being arranged such that the streams impinge on one another and the first and second components become admixed together when the components are poured from the container.
6. A container according to claim 5 substantially as hereinbefore described in the accompanying drawing.
PCT/GB1998/001599 1997-06-18 1998-06-16 Improvements in or relating to disinfecting materials WO1998057544A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU80260/98A AU8026098A (en) 1997-06-18 1998-06-16 Improvements in or relating to disinfecting materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9712680.9 1997-06-18
GBGB9712680.9A GB9712680D0 (en) 1997-06-18 1997-06-18 Improvements in or relating to disinfecting materials

Publications (1)

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WO1998057544A1 true WO1998057544A1 (en) 1998-12-23

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GB (2) GB9712680D0 (en)
WO (1) WO1998057544A1 (en)
ZA (1) ZA985228B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1069177A1 (en) * 1999-07-12 2001-01-17 The Procter & Gamble Company Fabric treatment applicator
WO2001019944A1 (en) * 1999-09-14 2001-03-22 S.C. Johnson & Son, Inc. Toilet bowl cleaning method
US6528466B1 (en) 2000-08-15 2003-03-04 Biolab Services, Inc. Solid oxidizer with dissolution indicator
GB2391479A (en) * 2002-08-09 2004-02-11 Reckitt Benckiser A two-part liquid hard surface cleaner
WO2005084434A2 (en) * 2004-02-27 2005-09-15 Tvia, Llc System and methods for customized products having a temporary visual indicator
US7378380B2 (en) 2002-01-18 2008-05-27 Reckitt Benckiser (Uk) Limited Dilutable cleaning compositions and their uses

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA01008617A (en) * 1999-02-24 2002-07-30 Kay Chemical Co Color stable hypochlorous sanitizer and methods.
EP1835017A1 (en) * 2006-03-17 2007-09-19 The Procter and Gamble Company Process of bleaching fabric
US20080081020A1 (en) * 2006-10-03 2008-04-03 Huang Yeong H Color change surgical prep solution
EP3229849A4 (en) * 2014-12-08 2018-07-18 Kinnos Inc. Additive compositions for pigmented disinfection and methods thereof
WO2017139670A1 (en) 2016-02-12 2017-08-17 Kinnos Inc. Compositions and methods for use in surface decontamination
WO2018022621A1 (en) 2016-07-25 2018-02-01 Kinnos Inc. Device and related compositions and methods for use in surface decontamination
ES2970804T3 (en) 2018-07-12 2024-05-30 Kinnos Inc Device for applying a composition to a wipe

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US3355392A (en) * 1963-10-18 1967-11-28 West Laboratories Inc Alkaline germicidal cleaner with color indicator
US4248827A (en) * 1978-06-12 1981-02-03 The Procter & Gamble Company Method for sanitizing toilets
GB2096162A (en) * 1981-04-03 1982-10-13 Warner Lambert Co Effervescent cleansing composition
US4362639A (en) * 1981-04-03 1982-12-07 Warner-Lambert Company Cleanser with improved afterodor and tarnish resistance
EP0081017A1 (en) * 1981-12-07 1983-06-15 Alcide Company Limited Partnership Germ-killing composition
GB2159716A (en) * 1984-06-08 1985-12-11 Colin Hok Ling Sun Disinfectant composition
EP0334060A2 (en) * 1988-03-19 1989-09-27 Reckitt Gmbh Denture cleansing tablet
WO1990008558A1 (en) * 1989-01-27 1990-08-09 Trans Delta Corporation Stabilized sterilizing or disinfecting halogen containing composition, method and apparatus
JPH05140590A (en) * 1991-08-09 1993-06-08 Manabisu:Kk Cleanser composition having color-developing and decoloring function
GB2288979A (en) * 1994-05-06 1995-11-08 Warwick Int Group Sterilising compositions

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US4200606A (en) * 1978-12-22 1980-04-29 The Procter & Gamble Company Method for sanitizing toilets
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US3355392A (en) * 1963-10-18 1967-11-28 West Laboratories Inc Alkaline germicidal cleaner with color indicator
US4248827A (en) * 1978-06-12 1981-02-03 The Procter & Gamble Company Method for sanitizing toilets
GB2096162A (en) * 1981-04-03 1982-10-13 Warner Lambert Co Effervescent cleansing composition
US4362639A (en) * 1981-04-03 1982-12-07 Warner-Lambert Company Cleanser with improved afterodor and tarnish resistance
EP0081017A1 (en) * 1981-12-07 1983-06-15 Alcide Company Limited Partnership Germ-killing composition
GB2159716A (en) * 1984-06-08 1985-12-11 Colin Hok Ling Sun Disinfectant composition
EP0334060A2 (en) * 1988-03-19 1989-09-27 Reckitt Gmbh Denture cleansing tablet
WO1990008558A1 (en) * 1989-01-27 1990-08-09 Trans Delta Corporation Stabilized sterilizing or disinfecting halogen containing composition, method and apparatus
JPH05140590A (en) * 1991-08-09 1993-06-08 Manabisu:Kk Cleanser composition having color-developing and decoloring function
GB2288979A (en) * 1994-05-06 1995-11-08 Warwick Int Group Sterilising compositions

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1069177A1 (en) * 1999-07-12 2001-01-17 The Procter & Gamble Company Fabric treatment applicator
WO2001019944A1 (en) * 1999-09-14 2001-03-22 S.C. Johnson & Son, Inc. Toilet bowl cleaning method
US6425406B1 (en) 1999-09-14 2002-07-30 S. C. Johnson & Son, Inc. Toilet bowl cleaning method
US6528466B1 (en) 2000-08-15 2003-03-04 Biolab Services, Inc. Solid oxidizer with dissolution indicator
US7378380B2 (en) 2002-01-18 2008-05-27 Reckitt Benckiser (Uk) Limited Dilutable cleaning compositions and their uses
GB2391479A (en) * 2002-08-09 2004-02-11 Reckitt Benckiser A two-part liquid hard surface cleaner
WO2004015049A1 (en) * 2002-08-09 2004-02-19 Reckitt Benckiser (Uk) Limited Improvements in or relating to cleaning
WO2005084434A2 (en) * 2004-02-27 2005-09-15 Tvia, Llc System and methods for customized products having a temporary visual indicator
WO2005084434A3 (en) * 2004-02-27 2005-12-01 Tvia Llc System and methods for customized products having a temporary visual indicator

Also Published As

Publication number Publication date
ZA985228B (en) 1999-03-04
GB2326340A (en) 1998-12-23
AU8026098A (en) 1999-01-04
GB9812930D0 (en) 1998-08-12
GB9712680D0 (en) 1997-08-20

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