Writing, make-up and / or painting system

Abstract

The invention relates to a writing, make-up and / or painting system (10) comprising a preparation with structurally viscous and / or thixotropic properties and an applying device (1) for the preparation, wherein the applying device (1) comprises a storage reservoir (2) for storing the preparation, an applying element (3) for applying the preparation to a substrate, a conveying element (4) connecting the applying element (3) to the storage reservoir (2), a pumping and shearing element (5) arranged at least partially in a hollow space of the conveying element (4), which is at least partially movable in a reversible manner into the storage container (2) between the applying element (3) and the storage container (2) in the longitudinal direction (L) of the applying device (1), and a conveying gap (6) formed between an inner surface (12) of the conveying element (4) and an outer surface (11 ) of the pump and shear element (5) for conveying the preparation from the storage reservoir (2) to the applying element (3), wherein the pump and shear element (5) is configured to perform, by movement of the pump and shear element (5) in the longitudinal direction (L) of the applying device (1 ) at a temperature of 25 °C, a shear with a shear rate in a range from 10 / s to 10000 / s on the preparation in the conveying gap (6).

Description

[0001] jfc HOEFER & PARTNER

[0002] SCI250601PCT

[0003] 10.06.2025

[0004] Applicant:

[0005] Schwan Cosmetics International GmbH

[0006] Schwanweg 1

[0007] 90562 Heroldsberg

[0008] Writing, make-up and / or painting system

[0009] Description

[0010] The invention relates to a writing, make-up and / or painting system, which is suitable for applying highly viscous inks and is configured in the form of a pen.

[0011] Pigmented inks, which are used in pen systems, such as free-ink systems, in which a capillary applying tip protrudes directly into an ink reservoir, or systems with a capillary reservoir and a suitable applicator, generally have a low viscosity of less than or equal to 10 mPas, Newtonian behavior, and a low surface tension of typically less than 40 mN / m to ensure a continuous ink flow. The ink is fed by so-called ink feeders (ink conductors in the free-ink system) or directly through the applicator (tip / reservoir system). Ink feeders and applicators are porous materials, and the driving force for ink feeding is capillary force.

[0012] The low viscosity of these inks makes the stabilization of pigments a challenging task for the specialist. To prevent pigments from forming agglomerates or flocculates and also from sedimenting, the pigments are often finely grounded and / or stabilized with surface-active substances.

[0013] However, this does not completely prevent sedimentation, when the particles have different surface charges, densities, or particle sizes. In this case, the specialist often resorts to the additional use of so-called gel agents. These can be mineral, plant-based, or organic. The particles in the ink are also stabilized within a gel structure. The problem with this, however, is that the use of gel agents increases the viscosity to such an extent that good and continuous ink flow within a pen system is severely impaired.

[0014] As a result, only low-viscosity inks are currently used in pen systems. The limits of the ranges are around 300 mPas for the transition between low- and medium-viscosity masses, and high-viscosity masses begin at around 8000 mPas.

[0015] Based on this state of the art, it is an object of the present invention to provide a writing, make-up and / or painting system, which is configured in the form of a pen and is suitable for applying highly viscous preparations.

[0016] The solution to this problem is provided by the subject matter of the independent claim. The dependent claims contain advantageous further developments and embodiments of the invention.

[0017] Accordingly, the writing, make-up and / or painting system according to the invention (hereinafter referred to as “the system”) comprises a preparation with structurally viscous or thixotropic properties and an applying device for the preparation.

[0018] For the purposes of the present invention, a structurally viscous preparation is understood to be a non-Newtonian preparation characterized by shear-thinning properties. A thixotropic preparation is understood to be a preparation characterized by time-dependent flow properties, wherein the viscosity of the preparation decreases as a result of continuous external influences and only returns to its initial viscosity once the stress has ceased. Accordingly, when a shearing force is performed on the preparation used in accordance with the invention, its viscosity decreases. As soon as the shearing force is removed, the viscosity increases again, at least partially. The preparation is not limited in detail and can be configured accordingly depending on the intended use, i.e., for writing, painting, or making-up, wherein not only colored preparations are suitable, but also transparent or matting preparations can be used, for example, to cover writing or painting results or to apply matting and / or nourishing making-up.

[0019] The applying device comprises a storage reservoir for storing the preparation, an applying element for applying the preparation to a substrate, a feeding element connecting the applying element and the storage reservoir, a pumping and shearing element arranged at least partially in a hollow space of the feeding element, which is at least partially movable in a longitudinal direction of the applying device between the applying element and the storage reservoir in a reversible manner into the storage reservoir, and a feeding gap formed between an inner surface of the feeding element and an outer surface of the pumping and shearing element for feeding the preparation from the storage reservoir to the applying element. The substrate, onto which the preparation is applied, can be paper, plastic, wood, metal, and any other non-living synthetic or natural material, but also skin, mucous membrane, semi-mucous membrane, or keratinous fibers, depending on the area of application of the system.

[0020] The components or elements of the applying device are arranged in the longitudinal direction approximately in the following order: storage reservoir feeding element with pumping and shearing element / feeding gap applying element.

[0021] The storage reservoir is not limited in detail and is configured in the form of a container that can hold a desired amount of preparation in its interior volume.

[0022] The pumping and shearing element is configured to move at least partially into the storage container in a reversible manner, so that the pumping and shearing element can also be moved out of the storage container again. The pumping and shearing element is arranged at least partially in the hollow space of the feeding element in order to stabilize its direction of movement. By means of the reversible back-and-forth movement, the pumping and shearing element performs a shearing action on the preparation located in the storage container and also a pumping action, wherein the viscosity of the preparation decreases due to the structural viscosity or thixotropy and the preparation thereby becomes flowable and is “pumped” into the feeding gap or through the feeding gap. The reciprocating movement can be easily performed by shaking the applying device, in particular in the longitudinal direction of the applying device, in which the pumping and shearing element also moves by guiding through the feeding element.

[0023] As already indicated above, the pumping and shearing element, in addition to the shearing action, also performs a certain pumping action on the preparation, which is also triggered by the back-and-forth movement of the pumping and shearing element. This means that the movement of the pumping and shearing element draws or presses the preparation into the feeding gap and forces it through the feeding gap to the applying element. The feeding gap is configured, such that it can feed the shear- thinned preparation to the applying element without the preparation precipitating in the feeding gap. In particular, the width of the feeding gap is configured, such that, when the pumping and shearing element is moved reversibly into the storage reservoir, one end face of the pumping and shearing element generates an impulse at a reversal point of the movement on a partial quantity of the preparation located between the pump element and the applying element, so that the preparation is feed into the applying element.

[0024] For this purpose, the pumping and shearing element is configured that, by the movement described above in the longitudinal direction of the applying device at a temperature of 25 °C, it performs a shearing on the preparation in the feeding gap at a shearing rate in a range from 10 / s to 10,000 / s and in particular from 50 to 8,000 / s. A shearing rate in a range of 10 / s to 10,000 / s is necessary in order to reduce the viscosity of the preparation to such an extent that the preparation can pass through the feeding gap to the applying element.

[0025] The system according to the invention is characterized in that it does not comprise a porous preparation conductor, i.e., the preparation does not pass through pore structures or is stored therein for storage or application, thereby reducing or even avoiding filtration effects of the preparation. The structural viscosity or thixotropic properties of the preparation make it possible to combine preparations with higher viscosity with the applying device and still obtain good delivery of the preparation with consistently high intensity on a substrate via the applying element. The preparation conductor does not correspond to the applying element.

[0026] In order to perform a shearing rate as uniform as possible from the pumping and shearing element onto the preparation, it is provided, according to an advantageous further development, that the pumping and shearing element is cylindrical. This means that at least its outer circumference, via which the shearing force is transmitted to the preparation, is cylindrical.

[0027] In order to perform a shearing rate in a range of 10 / s to 10,000 / s on the preparation by means of particularly moderate shaking movement of the applying element and thus moderate back-and-forth movement of the pumping and shearing element, the pumping and shearing element preferably has a weight of 0.3 to 5 g.

[0028] In order to achieve a shearing rate in a range of 10 / s to 10,000 / s even with small geometries of the applying device, the pumping and shearing element is advantageously made of metal, ceramic or thermoplastics filled with ceramic or metallic materials, and in particular of metal. The term “metal” includes both pure metal and alloys of two or more metals. In addition, metallic pumping and shearing elements have proven to be largely inert to writing, painting, and making-up preparations and are also mechanically stable enough in order to not to be damaged by back-and-forth movement.

[0029] Particularly in pen-shaped systems, it is advantageous, when the outer diameter of the applying device is within a range, which can be easily enclosed by human fingers. However, this also requires that the “inner life” of the applying device are dimensioned accordingly. Advantageously, the pumping and shearing element thus has a diameter of 2.5 to 3.5 mm, in particular of 3.0 mm to 3.3 mm. This diameter has proven to be particularly advantageous in light of a metallic pumping and shearing element with a weight of 0.3 to 5 g, as this allows very good shear thinning to be induced in the preparation.

[0030] For good feeding-ability of a higher-viscosity preparation, it is advantageous, when the ratio of the width of the feeding gap to a diameter of the pumping and shearing element is in the range of 1 :1 to 1 :20.

[0031] According to an advantageous further development, the width of the feeding gap is 0.1 to 3 mm and, in particular, 0.1 to 2 mm. This enables different preparations of a highly viscous nature, which are shear-thinning with a shearing rate in a range of 10 / s to 10,000 / s, to move through the feeding gap consistently at a good speed and precipitation-stably. Feeding gaps with a width of less than 0.1 mm have proven to be disadvantageous in allowing sufficient flow of the preparation through the feeding gap. Widths of less than 0.1 mm are more difficult to pass even for highly shear-viscous preparations, especially when the preparations contain high portions of solid substances. On the other hand, feeding gaps with a width of more than 3 mm are less suitable for ensuring sufficient precipitation stability of the preparation.

[0032] In order to promote a shearing rate in a range of 10 / s to 10,000 / s, it is further advantageous that the length of the movement path of the pumping and shearing element between the applying element and the storage reservoir in the longitudinal direction of the applying device is 0.001 to 0.09 m and in particular 0.005 to 0.05 m. The movement path is determined from the end face of the pumping and shearing element facing the storage reservoir to the stop (reversal point) of the pumping and shearing element in the storage reservoir.

[0033] For particularly good applying the structurally viscous or thixotropic preparation, it has proven particularly advantageous, when the applying element is a capillary applying element, in particular a fiber tip, a brush, a capillary plastic (e.g., printed or extruded), a felt tip, a sponge, or a ball applicator. It is essential that the applying element is configured, such that any capillaries are so large in relation to the colloid properties (according to the present invention, “colloidal particles” are understood to mean particles with an average particle size of 1 nm to 1 pm) of the preparation that no active feeding by the capillarity needs to take place and the preparation can be adjusted, so that its flow through the applying element is slowed down in the rest state without a feeding impulse. When any capillaries were small, filtration effects of the preparation could occur.

[0034] In order to improve the portioning of the preparation for application, an advantageous further development provides that the applying device comprises a meander-shaped or lamellar-like compensating reservoir for the preparation. Excessly feed preparation can be “temporarily stored” therein. Suitable lamellar-like compensating reservoirs can comprise, for example, spiral-shaped or labyrinth-like systems. In the event of pressure and / or temperature differences, a compensating volume can thus be provided via the compensating reservoir to buffer the storage air space. When the temperature rises, the pressure in the storage reservoir also rises. The emptier the storage reservoir, the more important the compensating volume provided by the compensating reservoir becomes.

[0035] To improve the continuous and consistently good feeding of the preparation from the storage reservoir via the feeding gap to the applying device, it is also advantageous, when the feeding element comprises a pressure compensation opening, which connects the ambient air of the system to the storage reservoir. This allows ambient air to be inputted into the storage container, so that no negative pressure builds up in the storage container over time via the feeding of the preparation, which would cause a certain feeding inhibition of the preparation.

[0036] Furthermore, the system advantageously comprises a protector, which at least partially surrounds the applying element and seals against the feeding element. This allows a connection to be achieved between the applying element and the feeding element. Furthermore, a housing can also be provided, which serves to provide a user with a good grip on the applying device for applying the preparation.

[0037] To improve the shearing of the preparation in the storage container, and thus also to achieve a shearing rate in a range of 10 / s to 10,000 / s more easily, it is advantageous to provide that the storage container comprises at least one mixing body and, in particular, a mixing ball, wherein a diameter of the mixing ball is preferably 1 to 20 mm and in particular less than 6.5 mm. The mixing body is not limited in detail and, in particular, for the same reasons as stated for the pumping and shearing element, is configured from metal, a metallic alloy, ceramic or thermoplastics filled with ceramic or metallic materials. The mixing element is freely movable in the storage container, while the pumping and shearing element moves exclusively in the longitudinal direction of the applying device into and out of the storage container. The mixing element thus reaches the entire volume of the storage container, so that a very good mixing of the preparation and thus a particularly uniform reduction in viscosity is obtained. This not only improves the feeding properties of the preparation through the feeding gap, but also ultimately leads to improved delivery of the preparation via the applying element.

[0038] An advantageous further development provides that the preparation is a viscoelastic preparation, wherein a dynamic viscosity of the preparation at 25°C and a shearing rate of 11s is greater than 10 Pas and, in particular, greater than 100 Pas. This achieves a very intensive delivery of the preparation via the applying element and nevertheless prevents the feeding gap from becoming blocked by the preparation. An upper limit for the dynamic viscosity is not specifically limited, but is advantageously 200 Pas, wherein good feeding stability can be achieved.

[0039] Furthermore, it is advantageous, when the preparation has an elasticity within the linear viscoelastic range in the sense of storage modulus (G‘) > loss modulus (G"), which is temporarily destroyed under shear stress. The shear stress range for triggering the temporary destruction is 0.01 to 10 Pa and the deformation range for triggering the temporary destruction is 0.1 to 100%. The storage modulus and loss modulus are measured in the form of an amplitude sweep on a rheometer with air bearing, EC drive, activated direct strain oscillation control, a plate-plate measuring system at a measuring gap of 1 mm under logarithmically increasing load in the range from 0.01 to 100 percent deformation.

[0040] To improve the flow properties through the feeding gap, it is also advantageous, when the preparation has an elasticity modulus in the range of 0.5 to 200 Pa at 25°C within the linear viscoelastic range. The elasticity modulus is also determined in the form of an amplitude sweep on a rheometer with air bearing, EC drive, activated direct strain oscillation control, a plate-plate measuring system at a measuring gap of 1 mm under logarithmically increasing load in the range from 0.01 to 100 percent deformation.

[0041] To further improve the flow properties, the preparation preferably has a yield point at 25°C, characterized by an intersection of the storage modulus (G‘) and loss modulus (G") in the shear stress range, of 0.01 to 100 Pa. The yield point is determined in the form of an amplitude sweep on a rheometer with air bearing, EC drive, activated direct strain oscillation control, a plate-plate measuring system at a measuring gap of 1 mm under logarithmically increasing load in the range from 0.01 to 10 percent deformation.

[0042] In addition, it has been found to be advantageous, when the preparation has a dynamic viscosity at 25°C, which, depending on the shear stress, comprises the following ranges:

[0043] - shearing rate 0.1 / s: maximum dynamic viscosity: 100,000 mpas and minimum dynamic viscosity: 100 mpas;

[0044] - shearing rate 1 / s: maximum dynamic viscosity: 13,000 pas and minimum dynamic viscosity: 30 mpas;

[0045] - shearing rate 10 / s: maximum dynamic viscosity: 500 pas and minimum dynamic viscosity: 10 mpas;

[0046] - shearing rate 1000 / s: maximum dynamic viscosity: 150 pas and minimum dynamic viscosity: 3 pas.

[0047] The dynamic viscosity is measured in the form of a viscosity curve on a rheometer with air bearing, EC drive, a plate-plate measuring system at a measuring gap of 1 mm under logarithmically increasing shearing rate in the range from 0.1 to 1000 / s, respectively in the dynamic equilibrium state of each shearing rate specification.

[0048] To improve the structural viscosity or thixotropic properties of the preparation, the preparation comprises at least one gelling agent. According to the invention, a gelling agent is understood to be a mineral or organic substance that absorbs or adsorbs a solvent contained in the preparation and forms a type of gel network. Suitable mineral gel agents are, for example, hectorite, bentonite, smectite, kaolin, or aluminum silicates. Suitable organic gel agents include, for example, xanthan gum, alginates, cellulose ether, carrageenans, carbomer, which also includes synthetic thickeners.

[0049] In order to improve the precipitation stability of the preparation in the storage container, even when stored for long periods at different temperatures, the gel-forming agent in the preparation preferably accounts for 0.1 to 3.5 wt%, in particular 0.3 to 2.5 wt% and in particular 0.5 to 1 .8 wt%.

[0050] When a color feeding of the preparation is desired, the preparation can comprise at least one coloring substance. A coloring substance is understood to mean both pigments and dyes, which can be combined in any manner to achieve the desired color result.

[0051] In order to improve the durability of the preparation on the substrate, it is advantageous for the preparation to comprise at least one film agent, wherein the film agent is selected in particular from synthetic film agents, in particular from polyurethane-based film agents, acrylic acid-based film agents, vinyl-based film agents (e.g. PVP, PVA, PVAc) and any mixtures thereof. Such film agents are known to the skilled person and can be selected accordingly.

[0052] In order to improve the spreadability of the preparation on the substrate, an advantageous further development provides that the preparation has a surface tension in a range of 30 to 60 mN / m, in particular of 35 to 50 mN / m. The surface tension is determined by means of a tensiometer via the Wilhelmy plate method, which uses a Wilhelmy plate. A Wilhelmy plate is a thin, usually rectangular plate made of platinumiridium, a few centimeters long and high. The material is chosen, so that it wets well, when it comes into contact with the preparation. A lamella then springs up, the shape or meniscus of which is determined by the interfacial tension of the preparation. The volume and thus the weight of the lamella formed also depends on the wetted length L of the Wilhelmy plate. The surface tension is measured with the Wilhelmy plate by bringing the lower edge of the vertically suspended rectangular platinum plate into contact with the preparation to be measured, thereby wetting it. The surface tension of the preparation can be calculated from the force, with which the plate is pulled out of the preparation.

[0053] Due to the very good feeding properties through the feeding gap of the applying device, the preparation is in particular a two-phase system, in which a solid phase is distributed in a liquid phase. Thus, no further liquid phase is present in addition to the one liquid phase. The solid phase comprises exclusively solid particles, such as fillers, pigments, particulate care substances, and the like.

[0054] To improve the flow properties, the preparation advantageously comprises at least one solvent. The solvent or solvents form the single-phase liquid phase of the preparation. Due to its high user-friendliness, the solvent is preferably water and can optionally comprise solvents that are homogeneously miscible with water at 25°C. Thus, the liquid phase of the preparation can consist of water and optionally solvents that are homogeneously miscible with water.

[0055] Example

[0056] An example of a preparation that is part of the system according to the invention is given below.

[0057] To prepare the preparation, the solvents, the dispersing agent and the surfactant were mixed together, then the pigments were dispersed therein and finally all the remaining substances were added while mixing, until homogeneity was achieved. Fig. 4 is the flow curve of Example 1 , which illustrates the structural viscosity behavior of the ink. At a minimum shear stress of 0.1 s-1 , a viscosity of approx. 13,000 mPa s is measured, which decreases under shearing to approx. 30 mPa s (measured at a shearing rate of 1000 s-1 ).

[0058] Fig. 5 shows the storage modulus (G‘) and loss modulus (G") of Example 1 as a function of shear stress, illustrating the elastic properties of the ink. The storage modulus is significantly greater than the loss modulus, and only at a shear stress of approx. 1 Pa is the gel structure temporarily destroyed, which can be seen from the fact that the two curves approach each other.

[0059] Further details, advantages, and features of the present invention are apparent from the following description of embodiments with reference to the drawings. It shows in: Fig. 1 a schematic structure of an applying device according to a first further development,

[0060] Fig. 2 a sectional view of an applying device according to a second further development,

[0061] Fig. 3 enlarged partial views of the applying device from Fig. 2 to illustrate the feeding gap,

[0062] Fig. 4 flow curve of Example 1 , and

[0063] Fig. 5 illustrating the storage module (G‘) and the loss module (G") of Example 1 .

[0064] The figures show only the essential aspects and elements of the present invention. All other aspects and elements have been omitted for the sake of clarity. Furthermore, identical reference numerals denote identical elements.

[0065] Fig. 1 shows in detail the individual elements of an applying device 1 according to a first advantageous further development, which can be assembled to form the applying device 1 .

[0066] The applying device 1 is part of a writing, make-up and / or painting system 10 according to the invention, which comprises, in addition to the applying device 1 , a preparation with structurally viscous properties, which is contained in the applying device 1. The preparation is applied to a substrate via the applying device 1 .

[0067] In detail, the applying device 1 comprises a storage container 2 for storing the preparation, an applying element 3 for applying the preparation to the substrate, a feeding element 4 connecting the applying element 3 and the storage container 2, a pumping and shearing element 5 arranged at least partially in a hollow space of the feeding element 4, which is movable between the applying element 3 and the storage container 2 in the longitudinal direction L of the applying device 1 at least partially reversibly into the storage container 2. The applying element 3 is protected by a protector 7, which is removed during normal use in order to expose the applying element 3.

[0068] The storage reservoir 2 has an internal volume for storing the preparation, from which the preparation is feed. For feeding the preparation, the applying device 1 is preferably shaken in the longitudinal direction L. Via back-and-forth movement, the pumping and shearing element 5, which is movably arranged in the hollow space of the feeding element 4, is partially and reversibly moved out of the feeding element 4 and into the inner volume of the storage reservoir 2 containing the preparation.

[0069] A feeding gap 6 is formed between an inner surface of the feeding element 4 and an outer surface of the pumping and shearing element 5 for feeding the preparation from the storage container 2 to the applying element 3.

[0070] By reversibly back-and-forth movement of the pumping and shearing element 5, a shearing force and a pumping action are performed on the preparation in the storage container 2 in such a way that the preparation is moved into the feeding gap 6 and its viscosity is reduced there due to the acting shearing force, which makes it possible for feeding the preparation through the feeding gap 6 to the applying element 3. Here, it is necessary that the pumping and shearing element 5 is configured, such that that, by the movement of the pumping and shearing element 5 in the longitudinal direction L of the applying device 1 at a temperature of 25 °C, a shear with a shearing rate in a range of 10 / s to 10,000 / s is performed on the preparation in the feeding gap 6, which causes sufficient flowability of the preparation, so that it passes completely through the feeding gap 6 to the applying element 3 and can be applied to a substrate via the applying element 3.

[0071] The structurally viscous or thixotropic preparation is characterized in particular by the fact that it is stabilized by one or more gelling agents, so that neither substances, such as pigments or fillers, precipitate out of the preparation nor does the preparation decompose. The preparation can be configured as in the above example. However, the only essential feature of the invention is its structurally viscous property, which is advantageously achieved by the addition of at least one gelling agent.

[0072] Figure 2 shows an applying device 1 according to a second embodiment in sectional view. The applying device 1 additionally has a meander-shaped compensating reservoir 8 for the preparation.

[0073] The feeding gap 6 between the inner surface 12 of the feeding element 4 and the outer surface 11 of the pumping and shearing element 5 is particularly clearly visible here. The width of the feeding gap 6 is in particular 0.1 to 3 mm. In addition, the feeding element 4 also comprises a pressure compensation opening 9, which connects the ambient air of the system to the storage reservoir 2 and thus prevents a negative pressure in the storage reservoir 2, which inhibits the feeding of the preparation to the applying element 3.

[0074] Advantageously, as shown here, the ratio of the width of the feeding gap 6 to the diameter of the pumping and shearing element 5 is in the range of 1 :1 to 1 :20. The pumping and shearing element 5 is cylindrical and configured from a metal or a metallic alloy and, in particular, has a weight of 0.3 to 5 g. This achieves shearing at a shearing rate in a range from 10 / s to 10,000 / s by very slight back-and-forth movement of the pumping and shearing element 5, so that the preparation is moved very well through the feeding gap 6.

[0075] Advantageously, the diameter of the pumping and shearing element 5 is 2.5 to 3.5 mm.

[0076] The applying element 3 is configured in particular as a fiber tip, brush, capillary plastic, felt tip, sponge, or ball applicator, so that the preparation can be applied uniformly with good line thickness.

[0077] Figure 3 shows enlarged views of sections Y and Z from Figure 2. Here, the feeding gap 6 is shown in detail in the front area, i.e., in the direction of the applying element 2, and in the rear area of the applying device 1 , i.e., in the direction of the storage reservoir 2. The width B1 in the front area and the width B2 in the rear area are approximately 0.5 mm.

[0078] In addition to the above written description of the invention, explicit reference is hereby made to the drawings of the invention for further disclosure. List of reference symbols

[0079] 1 applying device

[0080] 2 storage reservoir

[0081] 3 applying element

[0082] 4 feeding element

[0083] 5 pumping and shearing element

[0084] 6 feeding gap

[0085] 7 protector

[0086] 8 compensating reservoir

[0087] 9 pressure compensation opening

[0088] 10 writing, drawing, and / or painting system

[0089] 11 outer surface of the pumping and shearing element

[0090] 12 inner surface of the feeding element

[0091] B1 width of the feeding gap in the front area

[0092] B2 width of the feeding gap in the rear area

[0093] L longitudinal direction

Claims

Claims1 . A writing, making-up and / or painting system (10) comprising a preparation with structurally viscous and / or thixotropic properties and an applying device (1 ) for the preparation, wherein the applying device (1) comprises:- a storage container (2) for storing the preparation- an applying element (3) for applying the preparation onto a substrate- a feeding element (4) connecting the applying element (3) to the storage container (2)- a pumping and shearing element (5) arranged at least partially in a hollow space of the feeding element (4), which is movable between the applying element (3) and the storage container (2) in longitudinal direction (L) of the applying device (1) at least partially reversibly in the storage container (2)- a feeding gap (6) formed between an inner surface (12) of the feeding element (4) and an outer surface (11 ) of the pumping and shearing element (5) for feeding the preparation from the storage reservoir (2) to the applying element (3), wherein the pumping and shearing element (5) is configured to perform, by movement of the pumping and shearing element (5) in longitudinal direction (L) of the applying device (1) at a temperature of 25 °C, on the preparation in the feeding gap (6), a shear with a shearing rate in a range from 10 / s to 10000 / s.

2. The system (10) according to claim 1 , wherein the pumping and shearing element (5) is cylindrical.

3. The system (10) according to claim 1 or 2, wherein the pumping and shearing element (5) has a weight of 0.3 to 5 g.

4. The system (10) according to one of the preceding claims, wherein the pumping and shearing element (5) is made of metal, ceramic or thermoplastics filled with ceramic or metallic materials.

5. The system (10) according to one of the preceding claims, wherein the pumping and shearing element (5) has a diameter of 2.5 to 3.5 mm, in particular of 3.0 mm to 3.3 mm.

6. The system (10) according to one of the preceding claims, wherein a ratio of a width (B1 , B2) of the feeding gap (6) to a diameter of the pumping and shearingelement (5) is in a range of 1 :1 to 1 :20.

7. The system (10) according to one of the preceding claims, wherein a width (B1 , B2) of the feeding gap is 0.1 to 3 mm and, in particular, 0.1 to 2 mm.

8. The system (10) according to one of the preceding claims, wherein a length of the movement path of the pumping and shearing element (5) between the applying element (3) and the supply reservoir (2) in longitudinal direction (L) of the applying device (1) is 0.001 to 0.09 m and, in particular, 0.005 to 0.05 m.

9. The system (10) according to one of the preceding claims, wherein the applying element (1 ) is a capillary applying element, in particular a fiber tip, a brush, a capillary plastic, a felt tip, a sponge or a ball applicator.

10. The system (10) according to one of the preceding claims, wherein the applying device (1 ) comprises a meander-shaped and / or lamellar-like compensating reservoir (8) for the preparation.11 . The system (10) according to one of the preceding claims, wherein the feeding element (4) comprises a pressure compensation opening (9), which connects the ambient air of the system to the storage reservoir (2).

12. The system (10) according to one of the preceding claims, further comprising a protector (7), which at least partially surrounds the applying element (3), and seals against the feeding element (4).

13. The system (10) according to one of the preceding claims, wherein the storage reservoir (2) comprises at least one mixing body, in particular a mixing ball.

14. The system (10) according to one of the preceding claims, wherein the preparation is a viscoelastic preparation, wherein a dynamic viscosity of the preparation at 25 °C and a shearing rate of 1 / s is greater than 10 Pas and, in particular, greater than 100 Pas.

15. The system (10) according to one of the preceding claims, wherein the preparation has an elasticity within the linear viscoelastic range in the sense of storage modulus (G') > loss modulus (G"), which is temporarily destroyed undershear stress.

16. The system (10) according to one of the preceding claims, wherein the preparation has an elasticity modulus in the range of 0.5 to 200 Pa at 25°C within the linear viscoelastic range.

17. The system (10) according to one of the preceding claims, wherein the preparation at 25°C has a yield point characterized by an intersection of storage modulus (G') and loss modulus (G") in the shear stress range from 0.01 to 100 Pa.

18. The system (10) according to one of the preceding claims, wherein the preparation at 25°C has a dynamic viscosity, which, as a function of the shear stress, comprises the following ranges: shearing rate 0.1 / s: maximum dynamic viscosity: 100,000 mPas and minimum dynamic viscosity: 100 mPas; shearing rate 1 / s: maximum dynamic viscosity: 13,000 Pas and minimum dynamic viscosity: 30 mPas; shearing rate 10 / s: maximum dynamic viscosity: 500 Pas and minimum dynamic viscosity: 10 mPas; shearing rate 1000 / s: maximum dynamic viscosity: 150 Pas and minimum dynamic viscosity: 3 Pas.

19. The system (10) according to one of the preceding claims, wherein the preparation comprises at least one gelling agent.

20. The system (10) according to claim 19, wherein the mass portion of gel agent in the preparation is 0.1 to 3.5 wt%, in particular 0.3 to 2.5 wt% and in particular 0.5 to 1.8 wt%.21 . The system (10) according to one of the preceding claims, wherein the preparation comprises at least one coloring substance.

22. The system (10) according to one of the preceding claims, wherein the preparation comprises at least one film agent, wherein the film agent is in particular selected from synthetic film agents, in particular from polyurethane-based film agents, acrylic acid-based film agents, vinyl-based film agents and any mixtures thereof.

23. The system (10) according to one of the preceding claims, wherein the preparation has a surface tension in a range of 30 to 60 mN / m, in particular of 35 to 50 mN / m.

24. The system (10) according to one of the preceding claims, wherein the preparation is a two-phase system, wherein a solid phase is distributed in a liquid phase.

25. The system (10) according to claim 24, wherein the liquid phase comprises water and optionally solvents homogeneously miscible with water.

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