WO2022013261A1 - Farbwechselnde handwaschseife mit zwei farbübergängen - Google Patents
Farbwechselnde handwaschseife mit zwei farbübergängen Download PDFInfo
- Publication number
- WO2022013261A1 WO2022013261A1 PCT/EP2021/069538 EP2021069538W WO2022013261A1 WO 2022013261 A1 WO2022013261 A1 WO 2022013261A1 EP 2021069538 W EP2021069538 W EP 2021069538W WO 2022013261 A1 WO2022013261 A1 WO 2022013261A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soap
- cleaning
- capsule
- substance
- color
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 claims description 34
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- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 2
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- OBMRSUNAEQGDLK-UHFFFAOYSA-N 2-(dipropylamino)ethyl 2-methylprop-2-enoate Chemical compound CCCN(CCC)CCOC(=O)C(C)=C OBMRSUNAEQGDLK-UHFFFAOYSA-N 0.000 description 1
- WGPVOQRZWKYLOJ-UHFFFAOYSA-N 2-(hexylamino)ethyl 2-methylprop-2-enoate Chemical group CCCCCCNCCOC(=O)C(C)=C WGPVOQRZWKYLOJ-UHFFFAOYSA-N 0.000 description 1
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- 229920002101 Chitin Polymers 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
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- 108010035532 Collagen Proteins 0.000 description 1
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
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- 239000004203 carnauba wax Substances 0.000 description 1
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- HXKKTXMJSVFQSL-UHFFFAOYSA-M chembl176350 Chemical compound [Na+].C1=C(C([O-])=O)C(O)=CC=C1N=NC1=CC=C([N+]([O-])=O)C=C1 HXKKTXMJSVFQSL-UHFFFAOYSA-M 0.000 description 1
- 239000007979 citrate buffer Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229940110456 cocoa butter Drugs 0.000 description 1
- 235000019868 cocoa butter Nutrition 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 235000019646 color tone Nutrition 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003256 environmental substance Substances 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- CIWXFRVOSDNDJZ-UHFFFAOYSA-L ferroin Chemical compound [Fe+2].[O-]S([O-])(=O)=O.C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1 CIWXFRVOSDNDJZ-UHFFFAOYSA-L 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000000040 green colorant Substances 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001600 hydrophobic polymer Polymers 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
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- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000002088 nanocapsule Substances 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- 229920002647 polyamide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003531 protein hydrolysate Substances 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 235000012752 quinoline yellow Nutrition 0.000 description 1
- 239000004172 quinoline yellow Substances 0.000 description 1
- 229940051201 quinoline yellow Drugs 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical group C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229940057910 shea butter Drugs 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- PRZSXZWFJHEZBJ-UHFFFAOYSA-N thymol blue Chemical compound C1=C(O)C(C(C)C)=CC(C2(C3=CC=CC=C3S(=O)(=O)O2)C=2C(=CC(O)=C(C(C)C)C=2)C)=C1C PRZSXZWFJHEZBJ-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000001665 trituration Methods 0.000 description 1
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
- C11D3/40—Dyes ; Pigments
-
- 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
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/0013—Liquid compositions with insoluble particles in suspension
-
- 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
- C11D17/08—Liquid soap, e.g. for dispensers; capsuled
-
- 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
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/24—Hydrocarbons
-
- 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
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/44—Perfumes; Colouring materials; Brightening agents ; Bleaching agents
- C11D9/444—Dyes; Pigments
-
- 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
Definitions
- the present specification relates to an invention in the technical field of cleaning products, in particular hand washing products.
- the present invention creates in particular a soap product. Further applications of the invention are possible, for example in cleaning agents, disinfectants or in medical needs.
- Soaps with a single color transition are known from the prior art.
- a soap is known in which a pH indicator in the soap can indicate a color change based on a change in pH.
- thermochromic substance in the soap. This thermochromic substance changes color when it reaches a certain temperature.
- thermochromic substances with transitions in the relevant temperature ranges are not known for many colors.
- the processes are also usually reversible processes, which leads to severe disadvantages in terms of the indicator effect.
- the soap changes color through a color transition due to the temperature of the hands or body of the user of the soap.
- thermochromic substances the soap changes color through a color transition due to the temperature of the hands or body of the user of the soap.
- the soap will discolor back as it is a reversible thermochromic dye.
- GB 2305 932 A is an example here, which discloses a soap bar which reversibly changes color within a temperature range of typically 30-35° C. when a transition temperature of the temperature-sensitive dye contained therein is exceeded.
- WO 2006/137955 A1 discloses a cleaning composition comprising at least one surfactant and a plurality of thermochromic dyes which are configured for a reversible color transition as a result of a temperature change in the range between 21°C and about 40°C. Such a composition can be used to provide a signal to help improve cleaning effectiveness and/or safety and/or entertainment value.
- a cleaning composition which changes color during use is also known from WO 2007/070118 A1.
- the cleaning composition contains a plurality of thermochromic dyes that cause a color change at a threshold temperature and continue to change color with a time delay over a range of temperatures.
- the color transition is also reversible in this example, i.e. there is a reverse color change.
- the soap is discolored by the pH indicator, but then it partially recolors upon contact with the pH neutral water when washing off.
- the color change during washing suggests to the user that he has not yet used the soap sufficiently long or intensively.
- DE 202010 005443 U1 discloses a cleaning agent that has a first cleaning agent component for achieving a cleaning effect and a second cleaning agent component that is distributed in the first cleaning agent component, with the second cleaning agent component having at least one ingredient that preferably contributes to a color change in the cleaning agent leads to a change in pH.
- the change in color primarily serves the user to recognize how much foam the detergent dispensed from the container (which is used in particular for cleaning toilets) is and whether it is still in its original, relatively undiluted state, or whether it has already been diluted or rinsed out.
- US20050049157A1 discloses a color change composition containing an indicator that triggers an observable reversible color change upon reaction with oxygen.
- the number of possible color change cycles is between 12 and 35 cycles.
- the indicator and the base material form a single phase.
- a fine adjustment of parameters - such as a controlled setting of the time and the speed of a color transition - is possible with this setup.
- the color change and color return induces the aforementioned counter-intuitive effect in the user, since the color change when washing the user is suggested that he has not yet used the soap sufficiently long or intensively.
- the inventors therefore also believe that this disclosed reversible color changing feature would provide a fun and playful aspect to a single compartment liquid soap.
- the present invention has set itself the task of creating a soap that overcomes the disadvantages of the prior art and to provide a color-changing soap that is flexible and easy to use and inexpensive to produce and gives the user, especially children, a resilient and good discernible indicator of sufficiently intensive use and of sufficiently long duration.
- more intuitively understandable colors which are unfortunately often difficult to implement chemically
- the possibility of extensive fine-tuning are desirable in order to create an intuitive effect in users and especially in children (e.g. traffic light colors red - yellow - green, the meaning of which children are also intuitively familiar with).
- a cleaning or soap product in particular personal care product, in particular hand washing soap, which comprises a first chemical and/or mechanical mechanism for generating a first color transition within the soap continuum of the cleaning or soap product, and a second chemical and/or mechanical mechanism for Creation of a second color transition within the soap continuum of the cleaning or soap product.
- the soap can be configured in such a way that it is particularly convenient for the user and particularly intuitive to understand. For example, a first color transition occurs when the soap is removed or in the immediate vicinity of the beginning of a soaping process. A second color transition then occurs when the user has used the soap for a sufficiently long time and/or with sufficient intensity. For example, intuitive colors can also be selected in this way.
- a chemical mechanism for generating a color transition of the cleaning or soap product includes the direct or indirect chemical reaction between a substance inducing this chemical reaction (e.g. acid, base, complexing agent, metal ions) and a dye, e.g. a color indicator and/or a Color pigment and/or a substance that results in a color transition of the dye or color indicator, which in turn results in a color transition within the soap continuum.
- a substance inducing this chemical reaction e.g. acid, base, complexing agent, metal ions
- a dye e.g. a color indicator and/or a Color pigment and/or a substance that results in a color transition of the dye or color indicator, which in turn results in a color transition within the soap continuum.
- a mechanical mechanism for generating a color transition of the cleaning or soap product includes in particular the rupturing, mechanical shearing or destruction of a capsule-like structure that allows the release and/or mixing of a substance, e.g. a coloring substance, such as a dye, e.g. a color indicator or pigment into the soap continuum and/or causes the soap continuum to undergo a color transition.
- a substance e.g. a coloring substance, such as a dye, e.g. a color indicator or pigment into the soap continuum and/or causes the soap continuum to undergo a color transition.
- a mechanism for producing a color transition of the cleaning or soap product may involve a combination of a chemical mechanism and a mechanical mechanism. This is the case, for example, when the rupture, mechanical shearing or destruction of a capsule-like structure induces the release and/or mixing of a substance into the soap continuum, with the released substance directly or indirectly causing a chemical reaction between this substance (e.g. acid, base, complexing agent, metal ions) and a dye, e.g. a color indicator and/or a color pigment and/or a substance.
- a dye e.g. a color indicator and/or a color pigment and/or a substance.
- thermochromism where thermochromic substances/pigments undergo a color transition as a result of a temperature change (physical variable).
- the first color transition here is, for example, a mechanical mechanism for producing a first color transition of the cleaning or soap product (i.e. mechanically induced color transition).
- a dye and/or color pigments are present as a first substance, e.g. enclosed within a capsule-like structure, in particular a gel capsule, with the first color transition being initiated and/or effected by rupture, mechanical shearing or destruction of the capsule-like structure .
- the designation of the first mechanical mechanism for generating a first color transition of the cleaning or soap product refers here to the release of the dye and/or color pigments enclosed in the capsules into the volume of the cleaning or soap product (soap continuum), whereby the soap continuum is colored in one color .
- the subsequent second color transition takes place with a time delay and is here, for example, a chemical and/or mechanical mechanism for producing a second color transition of the cleaning or soap product (i.e. chemically and/or mechanically induced color transition).
- the time-delayed second color transition is a chemical mechanism for producing a second color transition of the cleaning or soap product, i.e. within the soap continuum.
- the chemical reaction involves the participation of at least one second substance, the second substance being, for example, in a first capsule-like structure, in particular a gel capsule, or within the soap continuum is arranged.
- the second substance that induces the chemical mechanism to produce the second color transition of the cleaning or soap product is encapsulated in a second capsule-like structure.
- the first and the second substance are initially separated from one another by the capsule-like structure.
- a chemical reaction that causes a color change can only take place after the capsule-like structure has been broken open.
- the second substance can be released with a time delay, which allows a gradual and/or controlled transition and fine-tuning, in particular also of a color change time, within the framework of the second mechanism. Desired properties and parameters can be influenced and set in this way.
- the second substance is, for example, an acid and/or base that brings about a change in pH, a complexing substance and/or a substance that changes the degree of water hardness (i.e. a complexing agent) that causes a color transition through complexing.
- a complexing agent i.e. a complexing agent
- the chemical reaction induced in this way changes the color of the dye and/or the color pigment that was released into the cleaning or soap product by the first—mechanically induced— color transition.
- the time-delayed second color transition is a mechanical mechanism for producing a second color transition of the cleaning or soap product, i.e., within the soap continuum.
- the mechanism for producing the second color transition of the cleaning or soap product involves the participation of at least one second substance.
- the second substance which induces the mechanical mechanism for generating the second color transition of the cleaning or soap product, is preferably arranged in a second capsule-like structure, in particular a gel capsule.
- the first and the second substance are initially separated from one another by the capsule-like structure. Only when the capsule-like structure is broken open is the second substance released into the soap continuum, which causes a second color change.
- the second substance is preferably a second dye and/or a second color pigment.
- the parameters of the soap and the color transition behavior can be fine-tuned particularly well. Desired colors can be achieved. Transitions can be made at the desired speed or speed.
- Delay can be set so that it is neither too fast nor too slow. For example, a period of time until a second color change, or an intensity requirement for use, can be implemented efficiently and reliably.
- the mechanisms can be chosen largely independently of one another. For example, pigments but also other substances causing a color change can be released from capsules or other carrier structures. As a result, even complex chemical active ingredient systems have access to use in soap, since, for example, a substance is released and can successively react with another substance already present in the soap continuum to produce a color change.
- An active ingredient system consisting of glucose and methylene blue is mentioned merely as an example. Reactions with environmental substances, such as atmospheric oxygen, may also be involved in the soap's color change mechanisms.
- the cleaning or soap product defined herein when used as intended, is brought into contact with the skin of a person for a sufficiently long time and intensively.
- soap continuum for the cleaning or soap product is used synonymously before and during the intended use (e.g. during application on the skin and/or in contact with water) of the cleaning or soap product.
- the second chemical and/or mechanical mechanism is effected with a time delay in relation to the first chemical and/or mechanical mechanism.
- a first color transition occurs when the soap is removed or in the immediate vicinity of the start of a soaping process (for example also as a result of an oxygen-induced reaction with a first dye).
- a second color transition then occurs when the user has used the soap for a sufficiently long time and/or with sufficient intensity.
- a capsule-like structure in particular a gel capsule, is used in the first and/or second chemical and/or mechanical mechanism, with the first color transition being initiated by breaking open, mechanical shearing or destroying the capsule-like structure and/or is effected.
- An important advantage is that a gradual color transition is made possible by successively breaking up more capsules when using the soap.
- the color transition indicates a sufficiently intensive or sufficiently thorough use of the soap product. This has advantages in particular compared to indicators which only show an elapsed time induce time. This soap can encourage users, especially children, to use the soap thoroughly enough. Simply waiting, on the other hand, does not lead to a color change.
- a capsule-like structure includes a shell and contents.
- a capsule-like structure within the meaning of the invention can also be a carrier structure which is based, for example, on homogeneous or inhomogeneous mixing.
- this is a bead, in particular a fat or wax bead, the substance of the bead being mixed with a dye or a substance involved in a color transition.
- a sphere is by no means necessarily spherical, but can have different shapes.
- Nanocomposite polymer network is a physically crosslinked nanocomposite polymer.
- Calcium alginate and nanocomposite polymer networks which comprise a physically crosslinked nanocomposite polymer of at least one organic polymer and at least one type of clay mineral particles, should be mentioned here as examples.
- Alginate capsules are widely used and are therefore readily available.
- a solid capsule can also be used, for example. These are readily available and inexpensive to produce. For example, it can be a polymer capsule.
- a crosslinked polysaccharide has been employed as a coating layer by crosslinking a polysaccharide with a crosslinking agent with or without using a polyol spacer.
- these polysaccharides ensure good storage stability of a dye included therein and at the same time during the intended use of the cleaning product, breaking open or destroying the capsule-like structure can be set in motion and/or effected, with the parameters of the capsule-like structure being finely adjustable particularly well.
- the polysaccharide of the at least one coating layer of the capsule-like structure is crosslinked.
- the polysaccharide can be crosslinked via covalent bonds.
- Crosslinking via covalent bonds enables very durable coatings.
- crosslinking via covalent bonds usually takes place by reacting the polysaccharide with a suitable crosslinker.
- Difunctional organic compounds are particularly suitable as crosslinkers, the functional groups being selected, for example, from the group consisting of carboxylic acids, salts of carboxylic acids, activated carboxylic acids, amines, alcohols, aldehydes and ketones.
- activated carboxylic acids are understood to mean carboxylic acid halides, active esters of carboxylic acids, anhydrides of carboxylic acids or other reactive derivatives of carboxylic acids.
- the polysaccharide of the at least one coating layer of the capsule-like structure is crosslinked via ionic and/or coordinate bonds.
- Polysaccharides of this type crosslinked via ionic and/or coordinate bonds can be produced particularly easily and do not impair the biodegradability of the polysaccharide used.
- the ionic and/or coordinative crosslinking can be achieved, for example, by polysaccharides which have anionic groups such as carboxylate groups or sulfonate groups.
- an ionic or coordinative crosslinking of the anionic groups of the polysaccharide then takes place in order to form a stable encasing layer.
- capsule-like structures can be used within the scope of cleaning and soap products, which have (strongly) hydrophobic properties, for example due to the material or structure/crosslinking.
- these capsules have hydrophobic properties that are too pronounced for functional use in the context of aqueous solutions.
- these capsules have other very beneficial properties. Stability, the ability to finely adjust properties, a simple manufacturing process and the possibility of small structure sizes are just examples.
- the experiments in the course of creating the present invention have shown that materials for capsule-like structures or other carrier structures with (strongly) hydrophobic properties are also suitable for use with soaps/surfactants.
- Soaps and surfactants can bring about good solubility or even distribution of such capsules, for example in an essentially aqueous solution. This effect is made possible, for example, by the polar and the non-polar part of a surfactant (effective reduction in interfacial tension).
- hydrogels can also be used in this way, which would otherwise have too many hydrophobic components in relation to their hydrophilic components.
- Such hydrogels often have important advantages, for example with regard to stability and diffusion behavior.
- surfactants improve a solubility or a homogeneous distribution of the capsule-like structures over the long term.
- the capsule-like structure is preferably water-impermeable and low-diffusion.
- the capsule-like structure can comprise a starch including starch derivatives, a modified cellulose, a natural gum, a wax, a fatty acid, a fatty alcohol, a multifunctional alcohol, colloidal or pyrogenic particles, a fatty acid ester, a polyoxyethylene glycol ether or mixtures thereof.
- a capsule-like structure allows a combination with numerous active ingredient systems and pigments to create the color transitions.
- a capsule-like structure is used in the second chemical and/or mechanical mechanism, which differs from the capsule-like structure used in the first chemical and/or mechanical mechanism, in particular if it differs in at least one aspect from: size, strength, material, surface finish.
- the first and/or the second chemical and/or mechanical mechanism is based on a chemical reaction. This makes enormously versatile chemical reactions accessible for use in the soap sector.
- the chemical reaction involves at least one first and one second component, the first component being arranged in a first capsule-like structure, in particular a gel capsule.
- the components are initially separated by the capsule-like structure.
- a chemical reaction that causes a color change can only take place when the capsule-like structure is broken open.
- the components are initially separated by the capsule-like structure.
- a chemical reaction that causes a color change can only take place when the capsule-like structure is broken open. The mixing required for this takes place particularly efficiently if the second component is free in the soap continuum.
- the second component is arranged in a second capsule-like structure, in particular a gel capsule.
- the components are initially separated by the capsule-like structures.
- the chemical reaction that causes a color change can only take place when the capsule-like structures are broken open.
- a color change can also be produced when the first capsule-like structure breaks open, based on a dye that is decolorized again by another substance, which is brought about when the second capsule-like structure breaks open later. This is just one example of one of the many new reaction topologies.
- the cleaning or soap products according to the invention contain the encapsulated dyes in amounts that are sufficient to achieve the desired coloring effect, ie in amounts of 0.1 to 80% by weight, more preferably 1 to 20% by weight and most most preferably from 2 to 10% by weight.
- Typical concentrations for the colorant range between 0.01-1% by weight based on the mass of all components of the soap.
- concentration of the indicator can be selected or set in a targeted manner by a person skilled in the art depending on the desired color intensity.
- the cleaning or soap product according to the invention comprises at least one "indicator” as a dye, the indicator being selected from the group consisting of pH indicators, redox indicators, complex indicators (metal indicators) and thermal indicators (to indicate a temperature range).
- indicator being selected from the group consisting of pH indicators, redox indicators, complex indicators (metal indicators) and thermal indicators (to indicate a temperature range).
- the ambient air can be used as a reaction partner.
- This is particularly simple and also provides a good indicator of the intensity of a washing process.
- the first and/or second chemical and/or mechanical mechanism is based on a reaction which is brought about by the action of light.
- the first and/or second chemical and/or mechanical mechanism is based on a reaction involving a hydrolipidic film.
- thermochromic substance (known to those skilled in the art as a thermal indicator) is used in the first and/or second chemical and/or mechanical mechanism.
- the heating during use for example hand warmth when washing hands, can be used to produce at least one desired color transition.
- a pH value-indicating substance is used in the first and/or second chemical and/or mechanical mechanism, in particular a pH value-indicating substance (known to those skilled in the art as a pH indicator), which is suitable for To indicate a change in the range from pH 4.5 to pH 9, in particular at least one of: methyl red, alizarin red, chlorophenol red, p-nitrophenol, hematoxylin, litmus, azolite mine, bromothymol blue, phenol red, neutral red, cresol red, naphtholphthalein, in particular mixtures of at least two pH -Value-indicating substances. pH indicators are available in numerous different colored versions. Therefore, this has the advantage that desired color transitions can be achieved more easily, including by combining several indicators. Commercial products are readily available.
- a carrier structure in particular in the form of spheres and/or powder form, in particular spheres and/or powder comprising waxes, fats or oils, is used in the first and/or second chemical and/or mechanical mechanism, with the second color transition is initiated and/or effected by melting of the support structure.
- thermochromic effect is generated.
- pigments that do not have to be thermochromic can be used in a temperature- and washing-intensity-dependent color change.
- the carrier structure consists of small spheres and/or powders made from waxes, fats or oils, which are mixed with a dye.
- a dye for example, waxes, fats or oils, which are mixed with a dye.
- small balls and/or powders made of wax, fat or oil which are mixed with a reagent that reacts with another substance and thereby causes a color change.
- Other powders are also conceivable.
- Powders are simple and can be produced in large quantities and are easy to incorporate into the soap. In particular, homogeneous distributions can be easily achieved using powder.
- a pH-changing substance is used in the first and/or second chemical and/or mechanical mechanism, in particular a pH-changing substance which is incorporated into a capsule-like structure or other carrier structure, in particular beads and/or Powder comprising waxes, fats or oils is introduced, in particular an acid and/or base, in particular citric acid and/or soda.
- capsule-like structure is preferably understood to mean spherical aggregates with a diameter of about 0.01 to about 5 mm, containing at least one solid or liquid core surrounded by at least one continuous membrane. More precisely, these are finely dispersed liquid or solid phases coated with preferably film-forming polymers, during the production of which the polymers are applied to the material to be encapsulated after emulsification and coacervation or interfacial polymerisation. In another method, liquid dyes are absorbed into a carrier structure ("micro-sponge”) and also added as micro-particles film-forming polymers coated.
- the capsule-like structures, also called nanocapsules can be dried like powder.
- the membrane can be made of natural, semi-synthetic or synthetic materials.
- Natural membrane materials are z. B. gum arabic, agar agar, agarose, maltodextrins, alginic acid and its salts, z. B. sodium or calcium alginate, fats and fatty acids, cetyl alcohol, collagen, chitosan, lecithins, gelatin, albumin, shellac, polysaccharides such as starch or dextran, polypeptides, protein hydrolysates, sucrose and waxes.
- Semi-synthetic membrane materials include chemically modified celluloses, in particular cellulose esters and ethers, e.g. B.
- Synthetic membrane materials are z.
- polymers such as polyacrylates, polyamides, polyvinyl alcohol or polyvinylpyrrolidone.
- multinuclear aggregates also called microspheres, which contain two or more nuclei distributed in the continuous medium of the soap, also come into consideration. This has the advantage of facilitating a time-delayed release of the dyes.
- the first substance is first released from the first core, which induces the first chemical and/or mechanical mechanism to produce a first color transition within the soap continuum of the cleaning or soap product, the first color transition being caused by a break-up, a mechanical Shearing or destruction of the capsule-like structure of the first type is initiated and/or effected.
- the color of pH indicators in the soap can be actively influenced.
- release and discoloration by means of a pH indicator only take place successively and as a function of time and/or washing intensity. In this way, in particular, fine adjustments to the parameters of the soap and its color transitions can be efficiently implemented.
- a complex-forming and/or water-hardness-changing substance (known to those skilled in the art as a complex indicator) is used in the first and/or second chemical and/or mechanical mechanism, which is incorporated into a capsule-like structure (102) or other carrier structure (103 ), in particular beads and/or powder comprising waxes, fats or oils, is introduced, in particular complexing agents, in particular hardening agents in terms of water hardness, in particular ions of alkaline earth metals, in particular calcium, magnesium, strontium and/or barium ions, and/or iron and/or aluminum ions.
- complexing agents in particular hardening agents in terms of water hardness, in particular ions of alkaline earth metals, in particular calcium, magnesium, strontium and/or barium ions, and/or iron and/or aluminum ions.
- a dye or a color pigment is provided as at least one substance, which is a complex indicator (metal indicator).
- the color of hardness indicators By actively influencing the degree of hardness, the color of hardness indicators, such as Eriochrome Black-T, can be actively influenced within the soap.
- a release and discoloration by means of a degree of hardness indicator only occurs gradually and as a function of time and/or washing intensity. In this way, in particular, fine adjustments to the parameters of the soap and its color transitions can be efficiently implemented.
- color transitions of a complexing agent for example Eriochrome Black-T
- a complexing agent for example Eriochrome Black-T
- blue or orange can be converted to purple, but also purple to blue or orange as a color change.
- These color transitions can also be varied and combined using a mixed indicator.
- the first chemical and/or mechanical mechanism produces a color transition which is essentially brought about and becomes visible at the time of removal and/or start of use of the cleaning or soap product. This clearly suggests to the user that he can start using the soap. In addition, it is clearly suggested to the user that he should not start washing off the soap yet, since the soap has not yet been used sufficiently. In one example, this is the color red. In another example, this is the color "colorless”.
- the second chemical and/or mechanical mechanism produces a color transition which is effected and becomes visible essentially at a point in time after a certain time and/or a certain accumulated intensity of use of the cleaning or soap product.
- this is the color green. In another example, this is the color "colorless”.
- thermochromic dye in particular in a capsule-like structure or another carrier structure
- a green interval pigment in particular in a capsule-like structure or another carrier structure
- Red thermochromic pigments which become colorless above a certain temperature, and green interval pigments are particularly efficiently available and easy to use.
- commercial products are readily available on the market for this purpose, making the production of the cleaning or soap product simpler and therefore more cost-effective.
- an effective red-green transition or red-colorless-green transition can be implemented efficiently with simple and readily available means.
- a substance comprising methylene blue and/or indigo carmine is used, in particular in a capsule-like structure or another carrier structure, and a substance comprising glucose, particularly in a capsule-like structure or another carrier structure.
- Methylene blue has a colored state of blue color.
- methylene blue can be decolorized by glucose. It can be colored by oxygen.
- methylene blue can thus be colored blue and bleached again successively, ie in particular reversibly.
- methylene blue is blue, i.e., colored. Methylene blue can be reduced to the colorless leuco form called leuco methylene blue. For example, this happens through glucose, which is oxidized to gluconic acid.
- leuco methylene blue can be oxidized by a suitable oxidizing agent to methylene blue with a blue color.
- a suitable oxidizing agent can be oxygen, in particular atmospheric oxygen. This has the effect that a color transition in a soap, which takes place when the soap is used, can be implemented effectively and cost-effectively due to the high surface contact of the soap with atmospheric oxygen during the soaping process. In particular, no separate substance, no separate mechanism and no separate oxidizing agent is necessary for this.
- Indigo carmine is versatile because it can act as both a pH and redox indicator. Due to the possible yellow discoloration, it is also particularly well suited to producing a green color by subtractive color mixing, for example in combination with a blue dye, for example methylene blue. A green color is particularly desirable for an intuitively understandable hand soap as a "wash up please" signal.
- a substance or mixture of substances comprising at least one leuco dye, in particular one of: methylene blue, indigo, indigo carmine, safranine T, Tillman's reagent, in particular in a capsule-like structure or another carrier structure.
- Such leuco dyes are particularly useful and readily available as commercial products.
- leuco dye is to be understood broadly and in particular is not limited to a leuco form of such a substance.
- the term includes both methylene blue and leuco methylene blue. The only requirement is suitability for use in a leuco dye.
- a substance comprising a degree of hardness indicator, in particular eriochrome black-T, and/or complexing agents, in particular murexide, ethylenediaminetetraacetate or acetic acid (EDTA), dimethylglyoxime, alizarin, diphenylcarbazide, yellow and/or red caustic soda is used, in particular in a capsule-like structure or another carrier structure, and a substance comprising complexing agents and/or hardening agents, in particular calcium and/or magnesium ions, in particular in a capsule-like structure or another carrier structure.
- complexing agents and/or hardening agents in particular calcium and/or magnesium ions
- This system is another valuable chemical active ingredient system for generating a color change and opens up the use of many other substances in soap products.
- a color change can be generated based on a hardness indicator or complexing agent.
- a substance comprising a redox dye and/or leuco dye, in particular Tillman's reagent, is used, in particular in a capsule-like structure or another carrier structure, and a suitable oxidizing and/or reducing agent, in particular ascorbic acid.
- This system is another valuable chemical active ingredient system for generating a color change and opens up the use of many other substances in soap products.
- a color change based on a redox dye and/or leuco dye can thus be generated.
- the color change can be controlled actively and depending on the intensity of use.
- an exemplary color change based on Tillman's reagent can be controlled actively and as a function of the intensity of use.
- a substance comprising a phthalocyanine compound, in particular a copper phthalocyanine compound, in particular polychlorinated copper phthalocyanine or a polychlorocopper phthalocyanine compound, particularly phthalocyanine green.
- a substance comprising a compound comprising at least one of: phthalo green, phthalo blue, carmine, Sudan IV, quinacridone, dioxazine violet, isoindolinone yellow, isoindolinone orange, isoindolinone yellow orange, aniline black, alizarin, alizarin yellow R.
- the second chemical and/or mechanical mechanism operates on the basis of a limited and/or delayed solubility, in particular water solubility, of a substance, in particular a free substance and/or a substance provided in a capsule-like structure or another carrier structure.
- a free substance is particularly simple.
- calcium carbonate is added to soap.
- this does not go directly, in particular not completely, into solution.
- more of it is successively dissolved during a washing process, and the water hardness can be influenced in this way, for example.
- this triggers a color change.
- the substance includes a hardener, complexing agent and/or plasticizer.
- water hardness can increase, but it can also decrease. As a result, a color change can be provided efficiently.
- the substance comprises a calcium, magnesium, strontium, barium, iron and/or aluminum compound or ion, in particular a calcium or magnesium compound, in particular a carbonate compound, in particular calcium carbonate.
- a color change is brought about and provided, for example by means of a degree of hardness indicator or also by means of complexing agents.
- Calcium, magnesium, strontium, barium, iron and/or aluminum compounds or ions in particular calcium or magnesium compounds, in particular carbonate compounds, in particular calcium carbonates, are particularly suitable for this.
- At least one chemical and/or mechanical mechanism for producing a color transition of the cleaning or soap product is irreversible or almost irreversible.
- irreversible means here that the original color state (ie the color state that was present before this chemically and/or mechanically induced color transition) cannot be achieved again or can only be achieved again by adding another substance.
- the irreversible color transition is one that cannot return to the original color state due to a chemical reaction and/or thermodynamic or kinetic inhibition. Consequently, thermochromism or a thermosensitive reaction is not a typical example of an irreversible color transition. So-called "oscillating" reactions are also not a typical example of an irreversible color transition.
- a typical example of an irreversible color transition - as understood herein - is the release of a dye and/or color pigment into the soap continuum. Those skilled in the art know that large amounts of energy have to be applied to separate the dye or color pigment.
- an irreversible color transition - as understood herein - is the release of an acid or base as a first or second substance into the soap continuum, which in a direct or indirect chemical reaction with a dye, e.g. a pH indicator for change in the color of the dye.
- a dye e.g. a pH indicator for change in the color of the dye.
- Those skilled in the art know that they can only induce the reverse color change by changing the pH value. This means that another substance, i.e. a corresponding base or acid, must be added to the soap continuum in order to shift the pH value accordingly.
- an irreversible color transition - as understood herein - is the release of a complex indicator (coloring complexing agent) as a first or second substance into the soap continuum, with a chemical and/or mechanical mechanism for producing a first color transition of the cleaning or soap product is achieved in that the added or released complex indicator undergoes a -chemically induced- color change by complexing metal ions, in particular calcium ions or magnesium ions (which are present, for example, in the soap product or are supplied to the soap product via water during the intended use of the soap product). completes.
- a complexing agent that has a stronger tendency to complex, such as ethylenediaminetetraacetate (EDTA) or sodium gluconate, must be added to or released into the soap continuum in order to indicate a color change.
- an irreversible or almost irreversible color transition is a mechanically induced color transition that is caused by the breaking up or mechanical Shearing or melting of a capsule-like structure or another carrier structure is induced and the release of a substance, in particular an indicator and/or color pigment, into the soap continuum and the distribution and/or mixing of this substance into the soap continuum.
- the first and the second chemical and/or mechanical mechanism for producing a color transition of the cleaning or soap product is irreversible or almost irreversible.
- thermochromic substance is used.
- this dye is red.
- this dye is red and will transition to a color “colorless” when a certain temperature is exceeded.
- this temperature is below the normal human skin temperature.
- this is a temperature below 32, 30, 28 or 25 degrees Celsius.
- the pigment can discolor (or color or change color) if it is brought into contact with the skin of a person for a sufficiently long time and intensively.
- thermochromic substance is used.
- this is a green pigment.
- a thermochromic pigment can, for example, have a color transition from green to colorless (and/or vice versa).
- this can be a green so-called interval pigment.
- the interval pigment is green at a temperature between 30 and 50 degrees Celsius, but otherwise has the color "colorless”.
- a combination of the two materials can create an effective color transition from red to green, or from red to colorless to green.
- the substances can be found in the soap continuum. However, they can also be located in a capsule-like structure or another carrier structure, so that they are only released when mechanical forces act on the soap, for example.
- This statement can refer to the first substance, the second substance or to both substances.
- the first substance can also be introduced in a capsule-like structure or another carrier structure of the first type, while the second substance can be introduced in a capsule-like structure or another carrier structure of the second type.
- the capsules can be of different types and have different robustnesses.
- Capsule-like structures can be of different sizes. For example, but by no means exhaustively, an individual capsule or carrier structure has a size in the centimeter range, in the millimeter range or in the micrometer range.
- Capsule-like structures and other carrier structures can also include so-called hydrogels. These are very poor in diffusion. As a result, the cleaning and soap product has a very long shelf life.
- hydrogels are made from monomer units, such as tert-butylaminoethyl methacrylate (TBAEMA) n-butylaminoethyl methacrylate (NBAEMA), diethylaminoethyl methacrylate (DEAEMA), dimethylaminoethyl methacrylate (DMAEMA), diisopropylaminoethyl methacrylate (DPAEMA), dibutylaminoethyl methacrylate (DBAEMA), dipropylaminoethyl methacrylate (DPAEMA), tertiary pentylaminoethyl methacrylate (TPAEMA), tertiary hexylaminoethyl methacrylate (THAEMA), tertiary-butylaminopropyl methacrylate (TBAPMA), diethylaminopropyl methacrylate (DEAPMA) and
- TAAEMA tert-butylamin
- methylene blue can be used as a dye.
- Methylene blue has a colored state of blue color.
- methylene blue can be decolorized by glucose. It can be colored by oxygen.
- methylene blue can thus be colored blue and bleached again successively, i.e. in particular reversibly.
- methylene blue is blue, i.e., colored. Methylene blue can be reduced to the colorless leuco form called leuco methylene blue. For example, this happens through glucose, which is oxidized to gluconic acid.
- leuco methylene blue can be oxidized by a suitable oxidizing agent to methylene blue with a blue color.
- a suitable oxidizing agent can be oxygen, in particular atmospheric oxygen. This has the effect that a color transition in a soap, which takes place when the soap is used, can be implemented effectively and cost-effectively due to the high surface contact of the soap with atmospheric oxygen during the soaping process. In particular, no separate substance, no separate mechanism and no separate oxidizing agent is necessary for this.
- a green dye is used, which is released when the soap is used.
- a green dye is present in the soap in capsule-like structures.
- such a green dye is present in a different carrier structure.
- a different support structure can be provided by small beads of waxes, fats or oils mixed with a reagent or a dye.
- a green colorant is blended with cocoa butter and provided in the form of small beads.
- thermochromic effect can be generated in this way.
- small balls of wax, fat or oil are designed to be destroyed mechanically when the soap is used and/or by thermal effects (e.g. heat of the hands) melt.
- thermal effects e.g. heat of the hands
- the dye is only released when the soap is used, in particular when the soap is used for a sufficiently long period and/or intensity, as a result of which it colors the soap continuum or the soap foam.
- a further aspect of the invention deals with one or more further added colorants.
- another colorant can be added to achieve a desired target color via a subtractive color mixing mechanism.
- a yellow dye can be added.
- such a yellow dye is quinoline yellow.
- a green color results when the methylene blue is in the blue colored form (not leuco methylene blue). In one example, this results in a color transition from yellow to green instead of a color transition from colorless to blue (or in the opposite direction).
- a substance released from a capsule-like structure or other support structure reacts with a substance already present in the soap continuum or which is released from another capsule-like structure/support structure (e.g. second type).
- the color transition can be brought about by different mechanisms or combinations of different mechanisms, for example redox reactions, pH value changes with a pH value indicator, stereochemical structural changes, thermochromism, thermosensitive reactions, etc.
- Tillman's reagent is used. This is red in acidic environment.
- Tillman's reagent is incorporated into a capsule-like structure or other support structure.
- soap continuum there is vitamin C or ascorbic acid.
- Tillman's reagent is in the soap continuum. Vitamin C or ascorbic acid is introduced into a capsule-like structure or another carrier structure of the second type. In one example, Tillman's reagent is incorporated into a capsule-like structure or other support structure. Vitamin C or ascorbic acid is introduced into a capsule-like structure or another carrier structure of the second type.
- the breaking open or mechanical shearing or melting of the capsule-like structure or the other carrier structure can represent a first mechanism, with a release of the content of the capsule-like structure or the other carrier structure of the second type being regarded as the second mechanism.
- the discoloration of the pH indicator can also represent a second mechanism.
- either the pH indicator or the chemical basis of the acidic environment derives from a capsule-like structure or the other support structure.
- the structural variants according to the invention can also be combined with other substances according to the invention.
- the capsules/carriers can include one or more substances that are essential for a color transition, but also other substances.
- Eriochrome Black T can be used, which can function both as a pH indicator but which can also react with compounds or solutions comprising, for example, ions of alkaline earth metals. Calcium and magnesium ions are only given as examples.
- This system can be used, for example, to achieve a color change between a purple hue and a red hue, a red hue and a blue hue, a blue hue and an orange hue, a red hue and an orange hue, or a red hue and a green hue.
- Eriochrome Black T can be combined with Methyl Orange.
- Methyl Orange For example, a gray shade or intermediate shade is also possible.
- All the pH indicators mentioned and not mentioned can also be combined with all the substances mentioned and not mentioned which influence the pH environment.
- a combination of one or more pH indicators with citric acid is conceivable.
- a combination of one or more pH indicators with soda is also conceivable, for example.
- Synergistic effects are achieved through the combination with the capsule-like structures or the other carrier structures. For example, an exact fine-tuning (fine tuning) of a point in time or intensity of a first color transition, a point in time or intensity of a second color transition and the desired color tones is possible by the invention.
- a system based on indigo carmine is also conceivable.
- a system of indigo carmine and glucose is conceivable.
- a color change from blue to yellow is conceivable, for example.
- Chemical mechanisms for generating a color transition ie chemically induced color changes which, in a first reaction, produce at least one color transition by changing the pH value, complexing and/or releasing embedded color pigments have been identified as mechanisms that are well suited for the application.
- the combination, in particular the time-delayed (also known as sequential) combination of different color transitions based on different chemical reactions was investigated, e.g. the discoloration of a first dye as a result of a pH change (as an example of a first -chemically induced- color change) and the time-delayed recoloring by releasing a color pigment as a second colorant (as an example of a second -mechanically induced- color change).
- suitable dyes are pH indicators, suitable pH indicators being listed herein by way of example.
- Suitable redox indicators include, for example, methylene blue, neutral red, ferroin, dichlorophenolindophenol (DCPIP), resazurin, and mixtures thereof.
- (earth) alkali metal carbonates such as, for example, sodium carbonate, sodium hydrogen carbonate, calcium carbonate, magnesium carbonate
- (Earth) alkali metal phosphates such as sodium phosphate, sodium hydrogen phosphate, sodium dihydrogen phosphate
- mesoporous silicas such as mullite, kaolinite, montmorillonite, bentonite, halloysite
- the aforementioned bases are notable in particular for their
- the color change caused by the release of insoluble, embedded color pigments is basically not restricted to a specific type.
- the pigments are embedded in preferably hydrophobic compounds such as oils or waxes.
- Suitable media for embedding include stearins, paraffins, beeswax, shea butter or carnauba wax.
- the release takes place via mechanical trituration of the mixture in the target medium.
- the pigments can already be highly effective in concentrations of 0.01-0.1% by weight based on the sum of the masses of all components of the soap.
- the waxes are present, for example, in concentrations between 0.1-10% by weight based on the sum of the masses of all components of the soap within the soap.
- Metal ions such as calcium or magnesium are suitable for the -chemically induced- color transition by complexing, since these are also contained in the water and have no toxic effect on the human organism.
- organic compounds that undergo a -chemically induced- color change by complexing calcium or magnesium are calconic acid or alizarin red S. If these come into contact with compounds that have a greater tendency to complex, such as ethylenediaminetetraacetate (EDTA) or sodium gluconate, in this way, the complexes formed from the metal ion and the coloring complexing agent can be dissolved, whereupon a chemically induced color transition occurs.
- EDTA ethylenediaminetetraacetate
- sodium gluconate sodium gluconate
- Typical concentrations of the coloring complexing agents and the decolorizing complexing agents are between 0.01-1.00% by weight, based on the sum of the masses of all the components of the soap.
- concentration of the coloring complexing agent and the decolorizing complexing agent can depend on the desired color intensity be selected or specifically set by the specialist. For this purpose, the person skilled in the art has recourse to suitable literature from which the complex formation constants can be found.
- the agents can be protected from the soap, and some of them can also be spatially separated from one another.
- the agents can be encapsulated, for example, separately from one another or together.
- Particularly suitable as soap-stable capsule shells are dense, non-porous coatings of the agent-containing cores with crosslinked polymers or mineral materials.
- FIG. 1 shows a schematic representation of a cleaning or soap product according to an embodiment of the present invention
- Figure 2 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- Figure 3 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- Figure 5 is a schematic representation of a cleaning or soap product according to an embodiment of the present invention
- Figure 6 is a schematic representation of a cleaning or soap product according to an embodiment of the present invention.
- Figure 7 is a schematic representation of a cleaning or soap product having two substances within a capsule-like structure, the two substances being separate from each other in a first core and a second core.
- FIG. 1 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- a soap such as a substantially liquid hand soap, is symbolically represented by the soap continuum 100.
- the continuum can be continuous and, for example, liquid, but it can also contain, for example, small particles, globules, bubbles or the like.
- the capsule is filled with a substance that includes a dye or pigment.
- a dye or pigment for example, this is a thermochromic pigment.
- the pigment is red below a threshold temperature.
- the pigment is colorless above a threshold temperature.
- a user removes a quantity of soap and begins a usage, cleaning, or hand washing process.
- the capsules 101 break open and the soap turns red due to the released pigment.
- hand warmth is added to the soap through the thermal contact of the hands with the soap. This can, for example, exceed the threshold (e.g. 24, 26, 28, 30 or 32 degrees), causing the soap to take on the color "colorless”.
- the capsule-like structure 102 is, for example, an alginate capsule 102, but there are numerous alternative materials.
- the capsule 102 can be made transparent, but does not have to be.
- Capsule 102 is shown as an oval, but other shapes can be used.
- the capsule is filled with a substance that includes a dye or pigment.
- a dye or pigment for example, this is a thermochromic pigment.
- the pigment is a green interval pigment.
- the pigment is colorless outside a certain temperature range, while it is colored within the temperature range. Colored here means, for example, green.
- the capsule-like structures 102 can differ from the capsule-like structures 101 .
- the capsules 102 differ in strength, size, and material. For example, this makes the capsules 102 more robust as a result, creating a Release of the content by destroying the capsules 102 is delayed compared to release of the content by destroying the capsules 101, ie occurs later in time (sequentially).
- the properties of the capsules 102 are adjusted in such a way that during a normal hand washing process, a color change is clearly produced by the release of the contents of the capsules 102 when the user has washed his hands for a specific time and with sufficient thoroughness. This can be the case, for example, after 15, 20, 30 or 40 seconds of thorough and intensive hand washing.
- Thermochromic substances do not necessarily have to be used. Permanently colored pigments are also possible.
- Various mechanisms for generating a color change which are disclosed within the scope of this document and/or which are known to a person skilled in the art, can also be used in connection with a system made up of capsule-like structures or other carrier structures.
- Another carrier structure is given, for example, by small particles or spheres, in particular spheres comprising waxes, fats or oils, into which a colored substance or another substance which causes a color change when mixed with the soap continuum is introduced by mixing. For example, during handwashing, such beads melt or are mechanically sheared or crushed, thereby releasing a colored substance or substance otherwise causing a color change when mixed with the soap continuum into the soap continuum and mixing.
- Methylene blue has a colored state of blue color.
- methylene blue can be decolorized by glucose. It can be colored by oxygen.
- methylene blue can thus be colored blue and bleached again successively, i.e. in particular reversibly.
- methylene blue is blue, i.e., colored.
- Methylene blue can be reduced to the colorless leuco form called leuco methylene blue. For example, this happens through glucose, which is oxidized to gluconic acid.
- leuco methylene blue can be oxidized by a suitable oxidizing agent to methylene blue with a blue color.
- a suitable oxidizing agent can be oxygen, in particular atmospheric oxygen. This has the effect that a color transition in a soap, which takes place when the soap is used, can be implemented effectively and inexpensively through the high surface contact of the soap with atmospheric oxygen during the soaping process. In particular, no separate substance, no separate mechanism and no separate oxidizing agent is necessary for this.
- a deliberately used oxidizing agent such as oxygen
- a structure is used in which oxygen can be introduced or enriched.
- such a structure can then be installed in a capsule-like structure or other carrier structure within the meaning of the invention.
- Another suitable active ingredient system for producing the color change is given, for example, by Tillman's reagent and vitamin C or ascorbic acid.
- 2,6-dichlorophenol-indophenol can be used in the context of another compound or another salt, not just as the sodium salt.
- the ascorbic acid ensures that the system becomes discolored when the capsules are mixed or broken open.
- Another suitable active ingredient system for producing the color change is, for example, Eriochrome Black-T.
- hardness components in the sense of water hardness
- calcium and/or magnesium ions in particular in a capsule-like structure or another carrier structure, are involved in the system.
- a red-green color transition can be produced very effectively, or alternatively a color change which is very similar to a red-green color change.
- a pH indicator is present in the soap continuum 100 or in a capsule-like structure 101.
- the active ingredient system also includes at least one pH-changing substance.
- these substances may include citric acid or soda.
- these substances are incorporated in a capsule-like structure 102 or alternative carrier structure.
- the contents of the capsule-like structure 101 are first released and then, with a time delay, particularly assuming sufficient washing intensity, the contents of the capsule-like structure 102.
- At least two color changes occur, for example.
- a color change occurs at the beginning of a hand washing process and another after a sufficient duration and/or intensity has taken place.
- pigments, pigment systems and chemical active ingredient systems can be found in the patent claims.
- Both parts can often be placed in capsules, particularly in the case of two-part active ingredient systems to produce a color transition.
- This can be different capsules 101 and 102, for example.
- a part of the active substance system can also be located in the soap continuum 100, for example.
- the said part of the active substance system is then released as part of a first chemical and/or mechanical mechanism by mechanically breaking open/shearing the capsules. This part then reacts with the other part already present in the soap continuum, upon further mixing, to chemically produce a color change (in this case a secondary chemical and/or mechanical mechanism).
- FIG. 2 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- a soap such as a substantially liquid hand soap, is symbolically represented by the soap continuum 100.
- the continuum can be continuous and, for example, liquid, but it can also contain, for example, small particles, globules, bubbles or the like.
- the capsule-like structure 101 is, for example, an alginate capsule 101, but there are numerous alternative materials.
- the capsule 101 can be made transparent, but does not have to be.
- the capsule 101 is shown as circular, but other shapes can also be used.
- the capsule is filled with a substance that includes a dye or pigment.
- a dye or pigment for example, this is a thermochromic pigment.
- the pigment is red below a threshold temperature.
- the pigment is colorless above a threshold temperature.
- a user removes a quantity of soap and begins a usage, cleaning, or hand washing process.
- the capsules 101 break open and the soap turns red due to the released pigment.
- hand warmth is added to the soap through the thermal contact of the hands with the soap. This can, for example, exceed the threshold (e.g. 24, 26, 28, 30 or 32 degrees), causing the soap to take on the color "colorless”.
- the active ingredient systems discussed in connection with FIG. 1 can also be used, for example, in the context of a soap as shown in FIG.
- the soap of Figure 2 has only one type of capsule-like structure 101 as shown.
- part of the active substance system, which can cause color changes, is arranged in the soap continuum 100 .
- FIG. 3 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- a soap such as a substantially liquid hand soap, is symbolically represented by the soap continuum 100.
- the continuum can be continuous and, for example, liquid, but it can also contain, for example, small particles, globules, bubbles or the like.
- the capsule-like structure 102 is, for example, an alginate capsule 102, but there are numerous alternative materials.
- the capsule 102 can be made transparent, but does not have to be.
- Capsule 102 is shown as an oval, but other shapes can be used.
- the capsule is filled with a substance that includes a dye or pigment.
- a dye or pigment for example, this is a thermochromic pigment.
- the pigment is red below a threshold temperature.
- the pigment is colorless above a threshold temperature.
- a user removes a quantity of soap and begins a usage, cleaning, or hand washing process.
- the capsules 101 break open and the soap turns red due to the released pigment.
- hand warmth is added to the soap through the thermal contact of the hands with the soap. This can, for example, exceed the threshold (e.g. 24, 26, 28, 30 or 32 degrees), causing the soap to take on the color "colorless”.
- the active ingredient systems discussed in connection with FIG. 1 can also be used, for example, in the context of a soap as shown in FIG.
- the soap of Figure 3 has only one type of capsule-like structures 101 as shown.
- part of the active substance system which can cause color changes, is also arranged in the soap continuum 100 .
- a color transition within the meaning of the invention can be a change from one color to another color, eg from red color to green color or vice versa.
- a color transition can also be a transition from colorless to a color or from a color to be colorless.
- black, white and transparent are also to be regarded as colors within the meaning of the invention.
- FIG 4 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- a soap such as a substantially liquid hand soap, is symbolically represented by the soap continuum 100.
- the continuum can be continuous and, for example, liquid, but it can also contain, for example, small particles, globules, bubbles or the like.
- the capsule-like structure 102 is, for example, an alginate capsule 102, but there are numerous alternative materials.
- the capsule 102 can be made transparent, but does not have to be.
- Capsule 102 is shown as an oval, but other shapes can be used.
- the capsule is filled with a substance that includes a dye or pigment.
- a dye or pigment for example, this is a thermochromic pigment.
- the pigment is red below a threshold temperature.
- the pigment is colorless above a threshold temperature.
- the alternative carrier structure 103 is, for example, small balls made of wax, fat or oil.
- these waxes, fats or oils are mixed with a dye or part of an active substance system that enables a color change.
- Another carrier structure is given, for example, by small particles or spheres, in particular spheres comprising waxes, fats or oils, into which a colored substance or another substance causing a color change when mixed with the soap continuum is introduced by mixing.
- small particles or spheres in particular spheres comprising waxes, fats or oils, into which a colored substance or another substance causing a color change when mixed with the soap continuum is introduced by mixing.
- such beads melt or are mechanically sheared or crushed, thereby releasing a colored substance or substance otherwise causing a color change when mixed with the soap continuum into the soap continuum and mixing.
- beads 103 contain a pigment.
- this is phthalo green or another green pigment. This creates, for example, an "alternative thermochromic effect" when using the soap, since the beads 103 are mechanically crushed or melted by heat and thereby the dye or release the active substance. In one example, phthalo green is released in this way and the soap is given a green color.
- All dyes and active ingredient systems can be combined with the structure of the soap of FIG.
- the capsule-like structures 102 and the carrier structures 103 already provide at least two mechanisms with which at least two color changes can be achieved.
- the capsule-like structures 102 and the carrier structures 103 can be set up in such a way that when the soap is used, the capsule-like structures 102 break first (e.g. approximately at the start of use), and later the carrier structures 103 break or melt (e.g. when sufficient use of soap).
- this chronological sequence is merely an example. The chronological sequence can also be reversed, so that the carrier structures 103 are destroyed first and the capsule-like structures 102 only later.
- the capsule-like structures 102 can differ greatly from the carrier structures 103 in their nature. This also includes properties such as size and robustness.
- Thermochromic substances do not necessarily have to be used. Permanently colored pigments are also possible.
- Various mechanisms for generating a color change which are disclosed within the scope of this document and/or which are known to a person skilled in the art, can also be used in connection with a system made up of capsule-like structures and carrier structures.
- Methylene blue has a colored state of blue color.
- methylene blue can be decolorized by glucose. It can be colored by oxygen.
- methylene blue can thus be colored blue and bleached again successively, ie in particular reversibly.
- methylene blue is blue, ie colored, before.
- Methylene blue can be reduced to the colorless leuco form called leuco methylene blue. For example, this happens through glucose, which is oxidized to gluconic acid.
- leuco methylene blue can be oxidized by a suitable oxidizing agent to methylene blue with a blue color.
- a suitable oxidizing agent can be oxygen, in particular atmospheric oxygen. This has the effect of creating a color transition in a soap that is Use of the soap takes place, can be realized effectively and inexpensively through the high surface contact of the soap with atmospheric oxygen during the soaping process. In particular, no separate substance, no separate mechanism and no separate oxidizing agent is necessary for this.
- a deliberately used oxidizing agent such as oxygen
- a structure is used in which oxygen can be introduced or enriched.
- such a structure can then be installed in a capsule-like structure or other carrier structure within the meaning of the invention.
- Another suitable active ingredient system for producing the color change is given, for example, by Tillman's reagent and vitamin C or ascorbic acid.
- 2,6-dichlorophenol-indophenol can be used in the context of another compound or another salt, not just as the sodium salt.
- the ascorbic acid ensures that the system becomes discolored when the capsules are mixed or broken open.
- Another suitable active ingredient system for producing the color change is, for example, Eriochrome Black-T.
- hardness components in the sense of water hardness
- calcium and/or magnesium ions in particular in a capsule-like structure or another carrier structure, are involved in the system.
- a red-green color transition can be produced very effectively, or alternatively a color change which is very similar to a red-green color change.
- a pH indicator is present in the soap continuum 100 or in a capsule-like structure 101.
- the active ingredient system also includes at least one pH-changing substance.
- these substances may include citric acid or soda.
- these substances are incorporated in a capsule-like structure 102 or alternative carrier structure.
- the contents of the capsule-like structure 101 are first released and then, with a time delay, particularly assuming sufficient washing intensity, the contents of the capsule-like structure 102.
- At least two color changes occur, for example.
- a color change occurs at the beginning of a hand washing process and another after a sufficient duration and/or intensity.
- pigments, pigment systems and chemical active ingredient systems can be found in the patent claims.
- the pigments, pigment systems and chemical agent systems disclosed in this reference can be incorporated within a capsule-like structure, another/alternative carrier structure (such as wax or fat globules) or in the soap continuum. Both parts can often be placed in capsules, particularly in the case of two-part active ingredient systems to produce a color transition. This can be different capsules 101 and 102, for example.
- a part of the active substance system can also be located in the soap continuum 100, for example.
- the said part of the active substance system is then released as part of a first chemical and/or mechanical mechanism by mechanically breaking open/shearing the capsules. This part then reacts with the other part already in the soap continuum, upon further mixing, to chemically produce a color change (in this case a secondary chemical and/or mechanical mechanism).
- a color transition within the meaning of the invention can be a change from one color to another color, e.g. from red color to green color or vice versa.
- a color transition can also be a transition from colorless to a color or from a color to colorless.
- black, white and transparent are also to be regarded as colors within the meaning of the invention.
- At least two different alternative support structures 103, 104 are used in the soap of FIG.
- the alternative carrier structures 103, 104 are, for example, small balls made of wax, fat or oil.
- a different carrier structure is thus provided, for example, by small particles or spheres, in particular spheres comprising waxes, fats or oils, into which a colored substance or another substance which causes a color change when mixed with the soap continuum is introduced by mixing.
- small particles or spheres in particular spheres comprising waxes, fats or oils
- a colored substance or another substance which causes a color change when mixed with the soap continuum is introduced by mixing.
- such beads melt or are mechanically sheared or crushed, thereby releasing a colored substance or substance otherwise causing a color change when mixed with the soap continuum into the soap continuum and mixing.
- beads 103 and/or beads 104 contain a pigment.
- this is phthalo green or another green pigment. This creates, for example, an "alternative thermochromic effect" when using the soap, since the beads 103 or 104 are mechanically crushed or melted by heat and thereby release the dye or the active ingredient. In one example, phthalo green is released in this way and the soap is given a green color.
- beads 103 release a green dye or agent that causes a green color change.
- beads 104 release a red dye or agent that causes a red color change. In particular, this can also be a substance that is red in color but is gradually decolorized by a mechanism.
- an effective red-green transition can be generated with successive use of the soap.
- beads 104 are destroyed first at the start of a wash cycle, and beads 103 after sufficient use of the soap.
- All dyes and active ingredient systems can be combined with the structure of the soap of FIG.
- the carrier structures 103 of the first type and the carrier structures 104 of the second type already provide at least two mechanisms with which at least two color changes can be achieved.
- the carrier structures 103 of the first type and the carrier structures 104 of the second type can be set up in such a way that when the soap is used, the carrier structures 104 of the second type break first (for example approximately at the start of use), and the carrier structures 103 of the first type break or break later in time. melt (e.g. if the soap has been used sufficiently).
- this chronological sequence is merely an example. The chronological sequence can also be reversed, so that the Carrier structures 103 of the first type are destroyed and only later the carrier structures 104 of the second type.
- thermochromic substances it is not absolutely necessary to use thermochromic substances, although this is of course also possible. Permanently colored pigments are also possible.
- Various mechanisms for generating a color change which are disclosed within the scope of this document and/or which are known to a person skilled in the art, can also be used in connection with a system made up of capsule-like structures and carrier structures.
- the soap of Figure 5 has at least two types of support structures 103 as shown,
- part of an active substance system which can cause color changes is also arranged in the soap continuum 100 .
- a color transition within the meaning of the invention can be a change from one color to another color, e.g. from red color to green color or vice versa.
- a color transition can also be a transition from colorless to a color or from a color to colorless.
- black, white and transparent are also to be regarded as colors within the meaning of the invention.
- FIG. 6 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- a soap such as a substantially liquid hand soap, is symbolically represented by the soap continuum 100.
- the continuum can be continuous and, for example, liquid, but it can also contain, for example, small particles, globules, bubbles or the like.
- the active ingredient systems discussed in connection with the other figures can also be used, for example, in the context of a soap, as shown in FIG.
- the soap in FIG. 6 manages with only one carrier structure 103, as shown.
- a pigment can be present in the carrier structure, for example. It can also be part of an active substance system in the carrier structure 103, for example. For example, part of an active substance system which can cause color changes is also arranged in the soap continuum 100 .
- FIG. 7 is a schematic representation of a cleaning or soap product according to one embodiment of the present invention.
- a soap such as a substantially liquid hand soap, is symbolically represented by the soap continuum 100.
- the continuum can be continuous and, for example, liquid, but it can also contain, for example, small particles, globules, bubbles or the like.
- the soap of Figure 7 has two carrier structures with two substances, the two substances being present within two capsule-like structures, the first capsule-like structure 102 forming a first core 105 within which the first substance and the capsule-like structure of the second type 102 are arranged.
- the capsule-like structure of the second type 102 forms a second core 106, within which the second substance is arranged.
- the two substances are present separately from one another in a first core 105 and a second core 106 .
- the first substance is an indicator, in particular a pH indicator or a complex indicator.
- Indicators do not necessarily have to be used, although this is of course also possible. Permanently colored pigments are also possible.
- the first color transition is preferably a mechanical mechanism for producing a first color transition of the cleaning or soap product (ie mechanically induced color transition).
- the first color transition is initiated and/or effected by breaking open, mechanical shearing or destroying the capsule-like structure 102, with the dye enclosed and/or embedded in the first core 105 (e.g. the indicator) or the permanently colored Pigments as well as the capsule-like structure of the second type 102 are released into the soap continuum. Releasing this first colored substance and mixing it with the soap continuum causes the first color transition.
- the second substance is only released into the soap continuum when the capsule-like structure of the second type 102 is broken open, mechanically sheared or destroyed.
- the second substance enclosed in the second core 106 can be a further embedded dye (eg the indicator), a permanent colored pigment, a pH value-indicating substance and/or a complexing agent.
- the second color transition preferably takes place by way of a chemical mechanism, as a result of which the first released substance changes its color.
- a color transition within the soap continuum is indicated by the distribution of the second substance or the propagation of the chemical reaction within the soap continuum.
- the second substance is an embedded dye (e.g. the indicator) and/or a permanent colored pigment
- the second color transition preferably takes place by way of a mechanical mechanism, with the second released substance being in the soap continuum distributed.
- a color transition within the meaning of the invention can be a change from one color to another color, eg from red color to green color or vice versa.
- a color transition can also be a transition from colorless to a color or from a color to colorless.
- black, white and transparent are also to be regarded as colors within the meaning of the invention.
- Example 1 Hand washing soap comprising a first mechanically induced color transition and a time-delayed second chemically induced color transition:
- a first type of capsule contains the indicator mixture, comprising equal parts of the dyes methyl red and bromocresol green (OKs value is approx. 4.90 and shows a color change from yellow to green in a ßH range of 3.8-5.4 deep blue), making up a total of 0.05% by weight based on the mass of the total mixture within the volume of the first type of capsules.
- the second type of capsules contains a paraffin-based core in which sodium bicarbonate is contained, the sodium bicarbonate making up a total proportion of 0.5% by weight based on the mass of the total mixture within the volume of the second type of capsule.
- Example 2 Hand washing soap comprising a first mechanically induced color transition and a time-delayed second chemically induced color transition:
- a first type of capsule contains the dye methyl red in a total proportion of 0.03% by weight based on the mass of the total mixture within the volume of the first type of capsule.
- the second type of capsules contains a paraffin-based core in which sodium carbonate in a total proportion of 0.1% by weight and the color pigment Puricolor PGR7 (manufacturer BASF) in a total proportion of 0.02% % by weight in each case based on the mass of the total mixture within the volume of the second type of capsules.
- the soap is applied to the hand and rubbed on and inside the palms with the addition of water. By bursting the capsules and distributing the active ingredients in the soap solution, the soap initially turns red. As the sodium hydrogen carbonate and the color pigment Puricolor PGR7 become more distributed, the pH value of the soap changes continuously towards a value between 6.0-7.0, resulting in a color change to green.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180060573.1A CN116194563A (zh) | 2020-07-13 | 2021-07-13 | 具有两种颜色转变的变色洗手肥皂 |
US18/016,238 US20230272313A1 (en) | 2020-07-13 | 2021-07-13 | Color changing hand wash soap with two color transitions |
AU2021309015A AU2021309015A1 (en) | 2020-07-13 | 2021-07-13 | Color-change hand soap with two color changes |
EP21758051.3A EP4179055A1 (de) | 2020-07-13 | 2021-07-13 | Farbwechselnde handwaschseife mit zwei farbübergängen |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020118464.6A DE102020118464A1 (de) | 2020-07-13 | 2020-07-13 | Farbwechselnde Handwaschseife mit zwei Farbübergängen |
DE102020118464.6 | 2020-07-13 | ||
LU101966A LU101966B1 (de) | 2020-07-13 | 2020-07-24 | Farbwechselnde Handwaschseife mit zwei Farbübergängen |
LULU101966 | 2020-07-24 |
Publications (1)
Publication Number | Publication Date |
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WO2022013261A1 true WO2022013261A1 (de) | 2022-01-20 |
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PCT/EP2021/069538 WO2022013261A1 (de) | 2020-07-13 | 2021-07-13 | Farbwechselnde handwaschseife mit zwei farbübergängen |
Country Status (5)
Country | Link |
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US (1) | US20230272313A1 (de) |
EP (1) | EP4179055A1 (de) |
CN (1) | CN116194563A (de) |
AU (1) | AU2021309015A1 (de) |
WO (1) | WO2022013261A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2305932A (en) | 1995-10-07 | 1997-04-23 | Cussons Int Ltd | Soap bar |
US20050049157A1 (en) | 2003-08-29 | 2005-03-03 | Kimberly-Clark Worldwide, Inc. | Single phase color change agents |
WO2005067875A1 (en) * | 2003-12-31 | 2005-07-28 | Kimberly-Clark Worldwide, Inc. | Color changing liquid cleansing products |
WO2006137955A1 (en) | 2005-06-17 | 2006-12-28 | Kimberly-Clark Worldwide, Inc. | Color-changing composition comprising a thermochromic ingredient |
WO2007070118A1 (en) | 2005-12-15 | 2007-06-21 | Kimberly-Clark Worldwide, Inc. | Color changing cleansing composition |
US20090093063A1 (en) * | 2007-09-07 | 2009-04-09 | Anslyn Eric V | Color Changing and Coverage Indicating Hand Sanitizer |
DE202010005443U1 (de) | 2010-05-14 | 2010-08-19 | Lippe, Karl | Reinigungsmittel mit Farbeffekt |
-
2021
- 2021-07-13 AU AU2021309015A patent/AU2021309015A1/en active Pending
- 2021-07-13 WO PCT/EP2021/069538 patent/WO2022013261A1/de active Application Filing
- 2021-07-13 CN CN202180060573.1A patent/CN116194563A/zh active Pending
- 2021-07-13 EP EP21758051.3A patent/EP4179055A1/de active Pending
- 2021-07-13 US US18/016,238 patent/US20230272313A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2305932A (en) | 1995-10-07 | 1997-04-23 | Cussons Int Ltd | Soap bar |
US20050049157A1 (en) | 2003-08-29 | 2005-03-03 | Kimberly-Clark Worldwide, Inc. | Single phase color change agents |
WO2005067875A1 (en) * | 2003-12-31 | 2005-07-28 | Kimberly-Clark Worldwide, Inc. | Color changing liquid cleansing products |
WO2006137955A1 (en) | 2005-06-17 | 2006-12-28 | Kimberly-Clark Worldwide, Inc. | Color-changing composition comprising a thermochromic ingredient |
WO2007070118A1 (en) | 2005-12-15 | 2007-06-21 | Kimberly-Clark Worldwide, Inc. | Color changing cleansing composition |
US20090093063A1 (en) * | 2007-09-07 | 2009-04-09 | Anslyn Eric V | Color Changing and Coverage Indicating Hand Sanitizer |
DE202010005443U1 (de) | 2010-05-14 | 2010-08-19 | Lippe, Karl | Reinigungsmittel mit Farbeffekt |
Also Published As
Publication number | Publication date |
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EP4179055A1 (de) | 2023-05-17 |
AU2021309015A1 (en) | 2023-03-09 |
CN116194563A (zh) | 2023-05-30 |
US20230272313A1 (en) | 2023-08-31 |
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