EP4179055A1

EP4179055A1 - Color-change hand soap with two color changes

Info

Publication number: EP4179055A1
Application number: EP21758051.3A
Authority: EP
Inventors: Fabian Schüler; Evelyn Lynch
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2021-07-13
Publication date: 2023-05-17
Also published as: CN116194563A; US20230272313A1; WO2022013261A1; AU2021309015A1

Abstract

The present invention relates to a cleaning product or soap product, in particular personal hygiene product, more particularly hand soap, comprising a first chemical and/or mechanical mechanism for effecting a first color change of the cleaning product or soap product, and a second chemical and/or mechanical mechanism for effecting a second color change. Also disclosed are numerous embodiments and chemical-technical variants of the invention.

Description

Color changing hand soap with two color transitions

field of invention

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.

Technical background

Soaps with a single color transition are known from the prior art. For example, a soap is known in which a pH indicator in the soap can indicate a color change based on a change in pH.

Another soap is known which uses a so-called thermochromic substance in the soap. This thermochromic substance changes color when it reaches a certain temperature.

In addition, a soap is known in which the user has to mix two components that have to be removed from separate containers.

However, the known soap products of the prior art suffer from numerous disadvantages.

The transitions often do not start at all and then very abruptly, which means that the user has a poor indicator effect with regard to the use of the soap.

The choice of color is often very limited, since 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.

In an example with a thermochromic substance, the soap changes color through a color transition due to the temperature of the hands or body of the user of the soap.

The processes are also usually reversible processes, which leads to severe disadvantages in terms of the indicator effect. In an example with a thermochromic substance, the soap changes color through a color transition due to the temperature of the hands or body of the user of the soap. Unfortunately, with a subsequent wash, the soap will discolor back as it is a reversible thermochromic dye.

This is a counter-intuitive effect for the user, since the change in color when washing up suggests to the user that he has not yet used the soap for a sufficiently long time or intensively.

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.

In this context, 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. However, the color transition is also reversible in this example, i.e. there is a reverse color change.

In another example with a pH indicator, the soap is discolored by the pH indicator, but then it partially recolors upon contact with the pH neutral water when washing off. Here, too, there is a counter-intuitive effect for the user, since the color change during washing suggests to the user that he has not yet used the soap sufficiently long or intensively.

For example, 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. However, 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.

A fine adjustment of parameters - such as a controlled setting of the time and the speed of a color transition - is not possible in the prior art. One is often dependent on the given chemical properties of a certain substance.

Even the color is often fixed. For example, using soap that turns “red” after sufficiently intensive use is not very intuitive and leads to numerous misunderstandings, especially among children, since “red” is more of a color with a warning effect and then does not encourage washing up .

In addition, 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. In addition, the indicator and the base material form a single phase. On the one hand, 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. On the other hand, in this case too, 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.

Storing two components for mixing and shipping to places of use is cumbersome and costly, and special soap dispensers and dispensers are required to provide the user with convenient soap dispensing for two- or multi-component soaps.

Description of the invention

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. In particular, more intuitively understandable colors (which are unfortunately often difficult to implement chemically) and 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). ).

The object is achieved by the cleaning or soap product according to claim 1. Numerous developments result from the dependent claims.

Accordingly, a cleaning or soap product, in particular personal care product, in particular hand washing soap, is provided 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.

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. However, a color transition can also be a transition from colorless to a color or from a color to colorless. In particular, black, white and transparent are also to be regarded as colors within the meaning of the invention.

Due to the two color transitions, 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 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.

However, 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. Another example is 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). In this case, 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). Preferably, 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.

According to a preferred embodiment, 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. Preferably, 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. As a result, 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. This has the advantage that 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. 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.

In accordance with an albeit preferred embodiment of the present invention, 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. As a result, 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.

By using two mechanisms for the two color transitions, 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.

It goes without saying that 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. Thus, the term 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.

According to a development, the second chemical and/or mechanical mechanism is effected with a time delay in relation to the first chemical and/or mechanical mechanism.

For example, 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.

This is particularly meaningful and intuitively understandable for the user.

According to a development, 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. In addition, 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.

For example, a capsule-like structure includes a shell and contents. However, 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. In one example 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.

Just one example of a material having a capsule-like structure is a nanocomposite polymer network, where the 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.

In order to achieve stable coating of the capsule-like structure, it is preferable that 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.

In principle, the present invention is not limited with regard to the chemical nature of the polysaccharide of the at least one coating layer of the capsule-like structure. Good results are obtained in particular when the polysaccharide of the at least one coating layer is selected from the group comprising starch, cellulose, chitin, carrageenan, agar and alginates. More preferably the polysaccharide of the at least one coating layer is a carrageenan or an alginate, it being most preferred that the polysaccharide of the at least one coating layer of the capsule-like structure is an alginate. In the context of the present invention, it was found that 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.

It is essential to the invention that the polysaccharide of the at least one coating layer of the capsule-like structure is crosslinked. According to one embodiment of the present invention, the polysaccharide can be crosslinked via covalent bonds. Crosslinking via covalent bonds enables very durable coatings. In this case, 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. In this context, 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.

According to an alternative and particularly preferred embodiment of the present invention, 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. By introducing divalent or higher-valent cations, in particular alkaline earth metal ions (such as calcium and/or magnesium ions), an ionic or coordinative crosslinking of the anionic groups of the polysaccharide then takes place in order to form a stable encasing layer.

According to one aspect of the present invention, 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. For example, these capsules have hydrophobic properties that are too pronounced for functional use in the context of aqueous solutions. For example, 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).

As a result of this insight, particularly stable, particularly well finely adjustable and particularly simple and inexpensive capsule-like structures can be used within the scope of the present invention. Strongly hydrophobic polymer capsules form only one example, in particular polymer capsules with a small structural size.

In this way, a capsule can be produced which, for example, has a structure size and a material such that the capsules are no longer uniformly distributed in water (for example clumping or the like occurs), but their use in the context of a surfactant/soap-containing chemical structure is uncomplicated and advantageously possible.

For example, 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.

For example, 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.

According to a further development, 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.

The capsule-like structures allow a combination with numerous active ingredient systems and pigments to create the color transitions. According to a development, 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.

This enables effective fine-tuning of the desired parameters of the soap and the color transition. In particular, a desired time delay or usage intensity requirement between the color transitions can also be set efficiently.

According to a development, 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.

According to one development, 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.

As a result, 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.

According to a development, the second component is arranged in the soap continuum.

As a result, 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.

According to a development, the second component is arranged in a second capsule-like structure, in particular a gel capsule.

As a result, 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. This opens up numerous new reaction possibilities. For example, 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.

According to a further development, 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. The 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.

According to a development, 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).

According to a further development, the second chemical and/or mechanical mechanism is based on a chemical reaction which is brought about by contact with oxygen, in particular atmospheric oxygen.

In this way, 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.

According to a further development, the first and/or second chemical and/or mechanical mechanism is based on a reaction which is brought about by the action of light.

This is particularly efficient. For example, such a photosensitive soap is in an opaque container. After removal and during washing, however, the soap is then exposed to the action of light. According to a development, the first and/or second chemical and/or mechanical mechanism is based on a reaction involving a hydrolipidic film.

When washing, the soap is exposed to the skin and in particular to its protective acid mantle. This is used to advantage in that the hydrolipid film participates in the generation of a color change.

According to a development, a 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.

According to a further development, 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.

Here are a few examples, which should not be considered exhaustive:

methyl red (pH change at 4.4 - 6.2; red - yellow); alizarin red (pH change at 4.5 - 6.0; yellow - red); Chlorophenol red (pH change at 4.8 - 6.4; yellow - violet); p-nitrophenol (pH change at 5.0 - 7.0; colorless - orange-yellow); Hematoxylin (pH change at 5.0 - 7.2; yellow - violet); litmus (pH change at 5.0 - 8.0; red - blue); Azolitmine (pH change at 5.0 - 8.0; red - blue); Bromothymol blue (pH change at 5.8 - 7.6; yellow - blue); phenol red (pH change at 6.4 - 8.0; yellow - red-violet); Neutral red (pH change at 6.8 - 8.0 ; Red Yellow) ; Cresol red (pH change at 7.2 - 8.8; yellow - violet); Naphtholphthalein (pH change at 7.3 - 8.7; colourless/reddish - blue-green)

According to a further development, 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.

This has the advantage that an "alternative thermochromic effect" is generated. In this way, pigments that do not have to be thermochromic can be used in a temperature- and washing-intensity-dependent color change.

For example, the carrier structure consists of small spheres and/or powders made from waxes, fats or oils, which are mixed with a dye. Another example is 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.

According to a further development, 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.

As used herein, “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. cellulose acetate, ethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose and carboxymethyl cellulose, and starch derivatives, especially starch ethers and esters. Synthetic membrane materials are z. Example, polymers such as polyacrylates, polyamides, polyvinyl alcohol or polyvinylpyrrolidone.

In addition to mononuclear capsule-like structures, 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. Thus, in a first step, 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. This is followed by the release of the second substance in a second step, with the second substance inducing the second chemical and/or mechanical mechanism to produce a second color transition within the soap continuum of the cleaning or soap product, the second color transition being caused by a breakup, a mechanical shearing or destruction of the capsule-like structure of the second type is initiated and/or effected.

By actively influencing the pH value, the color of pH indicators in the soap can be actively influenced. By introducing it into the capsule-like structure or other carrier structure, for example, 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. According to a further development, 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.

In this case, a dye or a color pigment is provided as at least one substance, which is a complex indicator (metal indicator).

By actively influencing the degree of hardness, the color of hardness indicators, such as Eriochrome Black-T, can be actively influenced within the soap. By introducing the substance that changes the degree of water hardness into the capsule-like structure or other carrier structure, for example, 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.

For example, calcium, magnesium, strontium and/or barium ions are released. As a result, a water hardness can be increased, for example.

A complexing agent can also be used, for example, to reduce water hardness. For example, a plasticizer is used. For example, this is EDTA. In one example, EDTA is a stronger chelating agent than Eriochrome Black-T.

As a result, for example, color transitions of a complexing agent, for example Eriochrome Black-T, can be used in all color change directions. For example, 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.

According to a further development, 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".

According to a further development, 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 clearly suggests to the user that he can or should start washing off the soap since sufficient use of the soap has taken place. In one example, this is the color green. In another example, this is the color "colorless".

According to a development, a red thermochromic dye is used, in particular in a capsule-like structure or another carrier structure, and 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. In particular, 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. As a result, an effective red-green transition or red-colorless-green transition can be implemented efficiently with simple and readily available means.

According to a development, 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. For example, methylene blue can be decolorized by glucose. It can be colored by oxygen. In particular, methylene blue can thus be colored blue and bleached again successively, ie in particular reversibly.

For example, 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. Here, 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.

According to a development, a substance or mixture of substances is used, 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.

The term “leuco dye” is to be understood broadly and in particular is not limited to a leuco form of such a substance. For example, the term includes both methylene blue and leuco methylene blue. The only requirement is suitability for use in a leuco dye. According to a development, 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.

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.

According to a development, 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.

By using a suitable oxidizing and/or reducing agent, for example in the context of a second capsule-like structure or other carrier structure, the color change can be controlled actively and depending on the intensity of use.

For example, through the use of ascorbic acid, for example as part of a second capsule-like structure or other carrier structure, an exemplary color change based on Tillman's reagent can be controlled actively and as a function of the intensity of use.

According to a development, there is 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.

These compounds have desirable properties, highly discernible colors, and are readily and inexpensively available because they are manufactured on a large scale. In particular, 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.

According to a further development, a substance is used 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.

These compounds have desirable properties, a wide variety of colors, and are good, cheap, and available in large quantities. In particular, 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.

According to a development, 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.

This mechanism is particularly simple and experiments have shown that it works surprisingly well. The solubility permits a gradual, controlled transition and allows for fine tuning, in particular also of a color change point within the scope of a second mechanism. Desired properties and parameters can be influenced and set in this way.

The use of a free substance is particularly simple. For example, calcium carbonate is added to soap. For example, this does not go directly, in particular not completely, into solution. For example, more of it is successively dissolved during a washing process, and the water hardness can be influenced in this way, for example. For example, this triggers a color change. For example, one can manage without a capsule-like structure and/or carrier structure, but this is not absolutely necessary.

According to a development, the substance includes a hardener, complexing agent and/or plasticizer.

For example, this influences the water hardness. For example, water hardness can increase, but it can also decrease. As a result, a color change can be provided efficiently.

According to one development, 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.

For example, as the substance or parts thereof gradually dissolve during the washing process, 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.

According to a further development, at least one chemical and/or mechanical mechanism for producing a color transition of the cleaning or soap product is irreversible or almost irreversible. The term 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. The course of the chemical and / or mechanical mechanism for generating a color transition of the cleaning or soap product as irreversible or almost irreversible has the significant advantage that there is no counter-intuitive effect for the user, which would suggest to the user, as a result of a reverse color change when washing up, that he has not yet used the soap for a sufficiently long time or intensively.

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.

Another example of 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. 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.

Another example of 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. In this case, another substance, i.e. 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.

According to one development, 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.

According to a development, 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.

Description of exemplary embodiments

According to one embodiment, a thermochromic substance is used. For example, this dye is red. For example, this dye is red and will transition to a color “colorless” when a certain temperature is exceeded. For example, this temperature is below the normal human skin temperature. For example, this is a temperature below 32, 30, 28 or 25 degrees Celsius. As a result, 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.

In one example, another thermochromic substance is used. For example, this is a green pigment. Such a thermochromic pigment can, for example, have a color transition from green to colorless (and/or vice versa). In particular, this can be a green so-called interval pigment. For example, the interval pigment is green at a temperature between 30 and 50 degrees Celsius, but otherwise has the color "colorless".

In one example, 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. For example, 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. In particular, 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.

Examples of chemically crosslinked polymers are so-called hydrogels, which 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 dimethylaminopropyl methacrylate (DMAPMA) or a combination thereof.

As a further example, methylene blue can be used as a dye. Methylene blue has a colored state of blue color. For example, methylene blue can be decolorized by glucose. It can be colored by oxygen. In particular, methylene blue can thus be colored blue and bleached again successively, i.e. in particular reversibly.

In another example, a green dye is used, which is released when the soap is used. For example, such a green dye is present in the soap in capsule-like structures. In a further example, such a green dye is present in a different carrier structure. For example, such a different support structure can be provided by small beads of waxes, fats or oils mixed with a reagent or a dye. In one example, a green colorant is blended with cocoa butter and provided in the form of small beads.

Such other support structures also have numerous advantages. For example, an “alternative thermochromic effect” can be generated in this way. For example, 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. As a result, 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. In particular, another colorant can be added to achieve a desired target color via a subtractive color mixing mechanism.

In one example, a color transition is realized through methylene blue. However, the desired target color is green, not blue, for example because "green" as a traffic light color promises an intuitive technical meaning for the user of the soap.

For example, a yellow dye can be added. In one example, such a yellow dye is quinoline yellow. For example, in the context of subtractive mixing of blue and 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).

In a further example of the invention, 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.

In one example, Tillman's reagent is used. This is red in acidic environment.

In one example, Tillman's reagent is incorporated into a capsule-like structure or other support structure. In the soap continuum there is vitamin C or ascorbic acid.

In one example, 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.

Upon lathering, the capsule-like structure or other support structure is destroyed and the contents are gradually released. For example, the acidic environment and the pH indicator can cause the soap to change color during lathering.

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.

For example, 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 (comprising, for example, substance 1 in capsules/carriers, substance 2 in the soap continuum; substance 2 in capsules/carriers, substance 1 in the soap continuum; substance 1 in capsules/carriers of the first type, substance 2 in capsules/carriers of the second type, and many more ) can also be combined with other substances according to the invention. Numerous other substances can also be added, i.e. the capsules/carriers can include one or more substances that are essential for a color transition, but also other substances.

For example, 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.

It can also be used as a mixed indicator. For example, Eriochrome Black T can be combined with 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. For example, 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. For example, a system of indigo carmine and glucose is conceivable. As a result, a color change from blue to yellow is conceivable, for example. By combining it with other systems, it is possible to create other color transitions through subtractive color mixing.

According to a further development, the cleaning or soap products according to the present invention are liquid soaps and hand washing pastes, preferably aqueous liquid soaps and hand washing pastes, which have a Brookfield viscosity (RVT, spindle 3, 10 rpm) of 300 to 30,000, more preferably 1,000 to 5,000 and most preferably 2,000 to 3,000 mPas.

According to a further development, the cleaning product or soap product, in particular body care product, in particular hand washing soap, is an essentially liquid cleaning product or soap product.

In order to set the desired color effect (ie a time-delayed or sequential sequence of color transitions), in principle various methods can be used in which a dye reacts to an external stimulus. Substances were examined that show a color change as a result of the effect of heat (thermochromism), chemical oxidation or reduction, in the presence of certain metal ions (complexing) or a change in pH value. Commercial color pigments were also embedded in a hydrophobic matrix (eg wax or oil) and colored by mechanical shearing and thus distribution in the target medium. 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).

Examples of suitable dyes are pH indicators, suitable pH indicators being listed herein by way of example. The following combinations of pH indicators for a red-green color change are very well suited for the -chemically induced- color change due to a change in pH value, since they complete the change in the skin-neutral pH range (pH=4.5-7 ): a mixture of thymol blue, methyl red, bromothymol blue and phenolphthalein (known as "Tamada indicator");

methyl red and bromocresol blue;

methyl red and bromocresol green.

Suitable redox indicators are exemplified herein and include, for example, methylene blue, neutral red, ferroin, dichlorophenolindophenol (DCPIP), resazurin, and mixtures thereof.

Typical concentrations for the indicator, such as the pH indicator, redox indicator, complex indicator are, for example, in the range between 0.01-1% by weight, based on the mass of all components of the soap. The concentration of the indicator can be selected or specifically adjusted by a person skilled in the art depending on the desired color intensity.

In addition to a large number of possible bases, the following are suitable as bases which bring about a change in pH: (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; Zeolites, in particular zeolite HY (Si:Al = 80:1), zeolite ß (Si:Al = 360:1), zeolite (3 Å), zeolite (4 Å), zeolite (5 Å), zeolite 13 X, zeolite -NaY (Si:Al = 5.1:1), Zeolite HY (Si:Al = 5.1:1) or mixtures thereof. The aforementioned bases are notable in particular for their good skin compatibility.

Typical base concentrations are, for example, in the range between 0.01-10% by weight, based on the sum of the masses of all the components of the soap. Commercial liquid soaps are often formulated with a citrate buffer system, so the amount of base to use will depend on the strength of the particular base, its solubility in water, as well as the composition of the soap formulation. However, the person skilled in the art can take this into account by means of appropriate table values and/or calculations.

The color change caused by the release of insoluble, embedded color pigments is basically not restricted to a specific type. For delayed release, which causes coloration, 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. Examples of 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. 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. The 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.

In order to achieve the color change effect not immediately, but only during use (washing, e.g. washing hands), the agents can be protected from the soap, and some of them can also be spatially separated from one another. For this purpose, 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.

character list

The present invention is explained in more detail below with reference to the exemplary embodiments given in the schematic figures of the drawings. 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 4 is a schematic representation of a cleaning or soap product according to an 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.

Identical or functionally identical elements and devices have been provided with the same reference symbols in all figures—unless otherwise stated.

character descriptions

Figure 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-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.

In one example, the capsule is filled with a substance that includes a dye or pigment. For example, this is a thermochromic pigment. For example, the pigment is red below a threshold temperature. For example, the pigment is colorless above a threshold temperature.

For example, 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. If use is continued consecutively, for example, 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.

In one example, the capsule is filled with a substance that includes a dye or pigment. For example, this is a thermochromic pigment. For example, the pigment is a green interval pigment. For example, 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 . For example only, 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). For example, 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.

Another suitable active ingredient system for producing the color change is given, for example, by methylene blue and glucose. Methylene blue has a colored state of blue color. For example, methylene blue can be decolorized by glucose. It can be colored by oxygen. In particular, methylene blue can thus be colored blue and bleached again successively, i.e. in particular reversibly. For example, 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. Here, 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.

However, if required, a deliberately used oxidizing agent, such as oxygen, can also be deliberately used. For example, a structure is used in which oxygen can be introduced or enriched. For example, 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. Here, for example, 2,6-dichlorophenol-indophenol can be used in the context of another compound or another salt, not just as the sodium salt. For example, there is a red color in an acidic environment. Here, for example, 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. For example, hardness components (in the sense of water hardness), in particular calcium and/or magnesium ions, in particular in a capsule-like structure or another carrier structure, are involved in the system. As a result, 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.

Another suitable active ingredient system for producing the color change is, for example, pH indicators. For example, a pH indicator is present in the soap continuum 100 or in a capsule-like structure 101. In one example, the active ingredient system also includes at least one pH-changing substance. For example, these substances may include citric acid or soda. For example, these substances are incorporated in a capsule-like structure 102 or alternative carrier structure.

For example, during a hand washing process, 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. 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.

Further suitable pigments, pigment systems and chemical active ingredient systems can be found in the patent claims. The pigments, pigment systems and chemical agent systems that are disclosed in this document, in a capsule-like structure, a other/alternative carrier structure (such as wax or fat globules) or incorporated into 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. However, a part of the active substance system can also be located in the soap continuum 100, for example. 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).

Figure 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 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. For example, part of the active substance system, which can cause color changes, is arranged in the soap continuum 100 .

Figure 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 soap of Figure 3 has only one type of capsule-like structures 101 as shown.

For example, 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. However, a color transition can also be a transition from colorless to a color or from a color to be colorless. In particular, black, white and transparent are also to be regarded as colors within the meaning of the invention.

Figure 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.

For example, a user removes a quantity of soap and begins a usage, cleaning, or hand washing process. The capsules 102 break open and the soap turns red due to the released pigment.

The alternative carrier structure 103 is, for example, small balls made of wax, fat or oil. For example, 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. 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.

In one example, beads 103 contain a pigment. For example, 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). However, 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.

Another suitable active ingredient system for producing the color change is given, for example, by methylene blue and glucose. Methylene blue has a colored state of blue color. For example, methylene blue can be decolorized by glucose. It can be colored by oxygen. In particular, methylene blue can thus be colored blue and bleached again successively, ie in particular reversibly. For example, 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. Here, 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.

For example, during a hand washing process, 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. For example, a color change occurs at the beginning of a hand washing process and another after a sufficient duration and/or intensity.

Further suitable 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. However, a part of the active substance system can also be located in the soap continuum 100, for example. 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).

Figure 5 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.

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. For example, these waxes, fats or Oils mixed with a dye or part of an active ingredient system that enables a color change. 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. 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.

In one example, beads 103 and/or beads 104 contain a pigment. For example, 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.

In one example, beads 103 release a green dye or agent that causes a green color change. In one example, 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.

For example, an effective red-green transition can be generated with successive use of the soap. For example, 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). However, 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.

The carrier structures 103 of the first type can differ greatly in their nature from the carrier structures 104 of the second type. This also includes properties such as size, carrier material, density, melting temperature and robustness.

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 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 of Figure 5 has at least two types of support structures 103 as shown,

104

For example, part of an active substance system which can cause color changes is also arranged in the soap continuum 100 .

Figure 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 .

Figure 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. As a result, 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). In this case, 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.

In FIG. 7, 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.

By releasing and dispersing the second substance into the soap continuum, it causes the second color transition.

If the second substance is 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.

If 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. However, a color transition can also be a transition from colorless to a color or from a color to colorless. In particular, black, white and transparent are also to be regarded as colors within the meaning of the invention.

exemplary embodiments

Example 1 - Hand washing soap comprising a first mechanically induced color transition and a time-delayed second chemically induced color transition:

Two different types of capsules (so-called capsule-like structure), which have a particle size with an average particle diameter of between 100-500 μm, are introduced into a colorless soap solution which has a pH value of 4.8. 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 (so-called capsule-like structure of the second type) 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.

The soap is applied to the hand and rubbed on and inside the palms with the addition of water. Due to the defined bursting of the first type of capsule and the distribution of the active ingredients in the soap solution, the soap solution on the hand initially turns red. With the bursting of the second type of capsules and/or with the increasing distribution of the sodium bicarbonate, the pH value of the soap changes continuously towards a value between 6.0-7.0, resulting in a color change to green.

Example 2 - Hand washing soap comprising a first mechanically induced color transition and a time-delayed second chemically induced color transition:

Two different types of capsules (so-called capsule-like structure), which have a particle size with an average particle diameter of between 100-500 μm, are introduced into a colorless soap solution which has a pH value of 4.8. 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.

Reference List

100 soap/soap continuum

101 Capsule-like structure 102 Capsule-like structure of the second kind

103 Alternative support structure/wax globules

104 Alternative carrier structure/wax globules of the second kind

105 first core

106 second core

Claims

patent claims

1. Cleaning or soap product, in particular body care product, in particular hand washing soap, comprising: a first chemical and/or mechanical mechanism for generating a first color transition of the cleaning or soap product, a second chemical and/or mechanical mechanism for generating a second color transition.

2. A cleaning or soap product according to claim 1, wherein the second chemical and/or mechanical mechanism is effected with a time delay relative to the first chemical and/or mechanical mechanism.

3. Cleaning or soap product according to claim 1 or 2, wherein a capsule-like structure (101), in particular gel capsule, is used in the first chemical and/or mechanical mechanism, whereby the first color transition occurs through rupture, mechanical shearing or destruction of the capsule-like structure (101) is initiated and/or effected.

4. Cleaning or soap product according to claim 1, 2 or 3, wherein a capsule-like structure (102), in particular a gel capsule, is used in the second chemical and/or mechanical mechanism, the second color transition being effected by rupture, mechanical shear or destruction of the capsule-like structure (102) is initiated and/or effected.

5. A cleaning or soap product according to claim 4, wherein the second chemical and/or mechanical mechanism employs a capsule-like structure (102) which differs from the capsule-like structure (101) employed in the first chemical and/or mechanical mechanism used, differs, especially if it differs in at least one aspect: size, strength, material, surface finish.

A cleaning or soap product according to claim 1, 2, 3 or 4, wherein the first and/or second chemical and/or mechanical mechanism relies on a chemical reaction.

7. Cleaning or soap product according to claim 6, wherein the chemical reaction comprises an involvement of at least a first and a second component, wherein the first component is arranged in a first capsule-like structure (101), in particular gel capsule.

8. A cleaning or soap product according to claim 7, wherein the second component is located in the soap continuum (100).

9. Cleaning or soap product according to claim 7, wherein the second component is arranged in a second capsule-like structure (102), in particular gel capsule.

10. Cleaning or soap product according to one of Claims 6 - 9, in which the second chemical and/or mechanical mechanism is based on a chemical reaction which is brought about by contact with oxygen, in particular atmospheric oxygen.

11. A cleaning or soap product according to any one of claims 6-10, wherein the first and/or second chemical and/or mechanical mechanism relies on a reaction induced by exposure to light.

12. A cleaning or soap product according to any one of claims 6-10, wherein the first and/or second chemical and/or mechanical mechanism relies on a reaction involving a hydrolipidic film.

13. Cleaning or soap product according to one of the preceding claims, wherein a thermochromic substance is used in the first and/or second chemical and/or mechanical mechanism.

14. Cleaning or soap product according to one of the preceding claims, wherein 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 which is suitable 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-indicating substances.

15. Cleaning or soap product according to one of the preceding claims, wherein a carrier structure (103), in particular in the form of beads and / or powder form, in particular beads and / or powder comprising waxes, fats or oils, at the first and / or second chemical and/or mechanical mechanism is used, the second color transition being initiated and/or effected by melting the carrier structure (103).

16. Cleaning or soap product according to one of the preceding claims, wherein 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 contained in 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 an acid and/or base, in particular citric acid and/or soda.

17. Cleaning or soap product according to one of the preceding claims, wherein in the first and/or second chemical and/or mechanical mechanism a complex-forming substance and/or a substance that changes the degree of water hardness is used, 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 hardness factors in the sense 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 cleaning or soap product according to any one of the preceding claims, wherein the first chemical and/or mechanical mechanism produces a color transition which is effected and visible substantially at a time of removal and/or start of use of the cleaning or soap product.

19. A cleaning or soap product according to any one of the preceding claims, wherein the second chemical and/or mechanical mechanism produces a color transition which occurs substantially at a point in time after a certain time and/or a certain accumulated intensity of use of the cleaning or soap product and becomes visible.

20. Cleaning or soap product according to one of the preceding claims, wherein a red thermochromic dye is used, in particular in a capsule-like structure (102) or another carrier structure (103), and a green interval pigment, in particular in a capsule-like structure (102) or another support structure (103).

21. Cleaning or soap product according to one of the preceding claims, wherein a substance comprising methylene blue and/or indigo carmine is used, in particular in a capsule-like structure (102) or another carrier structure (103), and a substance comprising glucose, in particular in a capsule-like structure (102) or other support structure (103).

22. Cleaning or soap product according to one of the preceding claims, wherein a substance or mixture of substances is used, 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 (102) or another support structure (103).

23. Cleaning or soap product according to one of the preceding claims, wherein 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 or red Blood lye salt, 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 (102) or another carrier structure (103) .

24. Cleaning or soap product according to one of the preceding claims, wherein a substance comprising a redox dye and / or leuco dye, in particular Tillman's reagent, is used, in particular in a capsule-like structure (102) or another carrier structure (103), and a suitable oxidizing and/or reducing agent, in particular ascorbic acid.

25. Cleaning or soap product according to one of the preceding claims, wherein a substance comprising a phthalocyanine compound, in particular copper phthalocyanine compound, in particular polychlorinated copper phthalocyanine or a polychlorinated copper phthalocyanine compound, in particular phthalocyanine green, is used, in particular in a capsule-like structure (102) or another support structure (103).

26. Cleaning or soap product according to one of the preceding claims, wherein a substance is used 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, particularly in a capsule-like structure (102) or other carrier structure (103).

27. Cleaning or soap product according to one of the preceding claims, wherein the second chemical and/or mechanical mechanism is based on a limited and/or delayed solubility, in particular water solubility, of a substance, in particular a free substance and/or in a capsule-like structure (102) or another carrier structure (103) provided substance operates.

28. Cleaning or soap product according to claim 27, wherein the substance comprises a hardener, complexing agent and/or softener.

29. Cleaning or soap product according to claim 27 or 28, wherein the substance is a calcium, magnesium, strontium, barium, iron and/or aluminum compound or ion, in particular calcium or magnesium compound, in particular carbonate compound, in particular calcium carbonate, includes.

30. Use of a cleaning or soap product according to any one of the preceding claims for cleaning and providing a cleaning or soap product according to any one of the preceding claims for use, in particular providing for use with a soap reference and dosing device.

31. A method of making a cleaning or soap product according to any one of claims 1-29, comprising:

providing a first chemical and/or mechanical mechanism suitable for generating a first color transition of the cleaning or soap product,

Providing a second chemical and/or mechanical mechanism suitable for generating a second color transition.