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EP4086331B1 - Bloc pour toilettes comprenant deux compositions différentes à pigments - Google Patents

Bloc pour toilettes comprenant deux compositions différentes à pigments Download PDF

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Publication number
EP4086331B1
EP4086331B1 EP21172204.6A EP21172204A EP4086331B1 EP 4086331 B1 EP4086331 B1 EP 4086331B1 EP 21172204 A EP21172204 A EP 21172204A EP 4086331 B1 EP4086331 B1 EP 4086331B1
Authority
EP
European Patent Office
Prior art keywords
composition
toilet
pigments
block
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21172204.6A
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German (de)
English (en)
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EP4086331A1 (fr
Inventor
Tatiana Schymitzek
Daniela Poethkow
Anke KLEMMSTEIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to EP21172204.6A priority Critical patent/EP4086331B1/fr
Priority to PCT/EP2022/060690 priority patent/WO2022233595A1/fr
Publication of EP4086331A1 publication Critical patent/EP4086331A1/fr
Application granted granted Critical
Publication of EP4086331B1 publication Critical patent/EP4086331B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0056—Lavatory cleansing blocks
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40—Dyes ; Pigments

Definitions

  • Toilet cleaning blocks also known as toilet blocks, have long been used to clean, disinfect and scent toilets under the bowl edge (so-called rim blocks) and in the water tank (in-tank blocks or cistern blocks).
  • rim blocks and in the water tank
  • in-tank blocks or cistern blocks In recent years, aesthetics and performance have become increasingly important. This has led, for example, to the development of solid, gel or liquid scented air fresheners, some of which are offered in multi-chamber containers, allowing the combination of a cleaning agent, which is released when the toilet is flushed, with permanent room scenting.
  • a rim block is formed from a single composition.
  • the composition is extruded, the strand is cut and, if necessary, formed.
  • Rim blocks that have two different compositions have also been known for some time. This makes it possible to combine different active substances, such as dyes, fragrances in the form of perfume oils, or biocides in the toilet block.
  • a toilet block with several compositions can produce a different release profile than is possible with a toilet block with one composition.
  • a first active substance can be used in the first composition and a second active substance in the second composition. If, for example, only the first active substance is compatible with the first composition, i.e. for chemical or physicochemical reasons, the second active substance cannot be used in the first composition, the use of an additional second composition, which contains the second active ingredient, but both active ingredients are used in the toilet block.
  • Toilet blocks are made of DE 699 34 422 T2 , WO 2006/070209 A1 and EP 3 628 726 A1 known.
  • Toilet blocks that contain two different compositions are known from the state of the art.
  • the use of different compositions makes it possible to refine the profile of the fragrance or colorant release and can contribute to a more appealing appearance of the toilet block.
  • the task was therefore to provide a shapely and aesthetically pleasing coloured toilet block that would be evenly rinsed throughout its entire service life and, in particular, would have an appealing aesthetic appearance.
  • a toilet block comprising at least one first composition and one second composition, wherein the one first composition and the one second composition at least partially form the surface of the toilet block; and the first composition and/or the second composition comprises a pigment and wherein the toilet block has a spherical geometry.
  • the first composition and the second composition form a spiral pattern on the surface of the toilet block.
  • pigments are colorants, i.e. coloring substances, which are present in the composition as solid particles and are insoluble in water. These are to be distinguished from conventional “dyes”, which are water-soluble.
  • Pigments include colored pigments and white pigments.
  • White pigments are therefore also to be understood as pigments according to the invention, with particular mention being made of titanium dioxide, lithopone, barium sulfate, zinc oxide (zinc white), zinc sulfide and lead carbonate (lead white), with titanium oxide being preferred.
  • Calcium aluminate sulfate is also a suitable white pigment.
  • Titanium dioxide is a preferred white pigment.
  • colored pigments are understood to mean pigments that have a color.
  • Colorful pigments are therefore understood to mean all pigments that are not white pigments.
  • Preferred embodiments comprise combinations of white pigment and/or colored pigment for the first composition and the second composition, respectively.
  • the pigments are preferably contained in the composition in an amount of 0.0001 to 20 wt.%, more preferably in an amount of 0.001 to 5 wt.% based on the entire toilet block.
  • the first composition comprises a colored pigment.
  • the second composition can optionally contain a white pigment.
  • the white phase can also contain no pigment, which means that this phase is then free of pigment and, of course, also free of water-soluble dyes.
  • the one first composition comprises a colored pigment and the one second composition comprises a white pigment.
  • the one first composition comprises a colored pigment and a white pigment and the one second composition comprises a colored pigment.
  • the first composition comprises a colored pigment and a white pigment and the second composition comprises a colored pigment and a white pigment.
  • the first composition and the second composition are essentially free of water-soluble dyes.
  • the toilet block is completely free of water-soluble dyes and contains only pigments as coloring agents.
  • the most important industrial pigments can be divided into eight classes of substances. These are titanium dioxide, carbon black, bismuth pigments, oxides and Hydroxides, iron cyan blue, ultramarine, cadmium pigments and chromate pigments.
  • the group of oxides and hydroxides is further divided into iron oxide pigments, chromium oxide and mixed phase oxide pigments such as Rinman's green - the latter with the subgroups spinel pigments, hematite pigments, inverse spinel pigments and rutile derivatives.
  • the group of chromate pigments is further divided into chrome yellow, chrome green and molybdates.
  • Pigments typically form in the form of primary particles.
  • the primary particles can grow together to form aggregates via their surfaces.
  • Agglomerates are when primary particles and/or aggregates are connected via their corners/edges.
  • the toilet block is described, wherein the first composition and the second composition form a spiral pattern on the surface of the toilet block.
  • a spiral also known as a snail line, is a curve that runs around a point or an axis and moves away from or closer to this center depending on the observer's perspective.
  • Titanium oxide is a white pigment, which is also referred to as a pigment in connection with the present invention.
  • the first composition and/or a second composition comprising titanium dioxide as a pigment and containing no other pigments or dyes.
  • the phase formed by the corresponding composition has a white appearance.
  • extrusion refers to a process in which one or more compositions are pressed out of an opening under pressure, preferably continuously.
  • the opening is also known to a person skilled in the art as a profile nozzle.
  • the resulting body with the cross-section of the opening is called an extrudate.
  • coextrusion refers to an extrusion process wherein at least a first composition and a second composition are brought together in an extrusion head or also called an extruder head.
  • the extruder head forms a passageway, one end of the passageway being formed by a profile nozzle through which the combined compositions can exit as an extrudate.
  • the passage in the extruder head has a side wall.
  • the first composition and the second composition are brought together in the extruder head such that the first composition is in spatial contact with a partial area of the side wall of the extruder head and the second composition is in spatial contact with another partial area of the side wall of the extruder head.
  • Such an arrangement differs in particular from a concentric coextrusion, in which a first composition is completely in spatial contact with the side wall of the extruder head and a second composition is extruded concentrically within the first composition, ie the second composition is not in spatial contact with the side wall of the extruder head. In the extrudate, the second composition is thus concentrically enclosed by the first composition.
  • the extrudate according to the invention and thus also The toilet block according to the invention therefore differs significantly from such a concentric extrudate known from the prior art.
  • the first composition comprises a first active ingredient and the second composition comprises a second active ingredient, wherein the first active ingredient and the second active ingredient differ from each other.
  • the first active substance is a first dye and the second active substance is a second dye.
  • the first active substance is a first fragrance and the second active substance is a second fragrance.
  • the production of the toilet block comprises a molding step after the coextrusion step.
  • the compositions form the surface of the toilet block in substantially equal proportions.
  • the spherical shape according to the invention has the advantage that, due to its symmetrical geometry, the toilet block can be rinsed essentially evenly, i.e. the water can run off evenly on all sides.
  • Such symmetry is particularly advantageous for a toilet block that comprises two compositions that essentially make up the surface of the toilet block in equal proportions. In conjunction with the symmetry of the toilet block, this results in both compositions being released simultaneously into the flushing water.
  • the two compositions are "interwoven" on the surface in such a way that the two compositions are interwoven in streaks and are thus distributed completely evenly over the surface.
  • Such a distribution of the compositions on the surface of the stone can be achieved in particular by simultaneously cutting and ball-forming a cylindrical (non-concentric) coextrudate.
  • a spherical shape is also particularly advantageous because it is evenly rinsed due to the highly symmetrical geometry of the toilet blocks. Rinsing water is directed evenly along the surface of the sphere and comes into even contact with the entire surface of the block.
  • the invention preferably comprises a toilet block and a method for producing a toilet block, wherein the extrudate is cut into smaller units.
  • the invention preferably comprises a toilet block and a method for producing a toilet block, wherein the extrudate is cut into smaller units of approximately the same size.
  • a method for producing the toilet block is described as an example, wherein the passage is essentially cylindrical.
  • the circumference of the partial cylinder of the extrudate that corresponds to the first composition can be different from the circumference of the partial cylinder that corresponds to the second composition. This makes it possible to tailor the appearance and release profile of the toilet block. It is possible, for example, for the first composition to form a partial cylinder with a 3/4 circumference and the second composition to form a partial cylinder with a 1/4 circumference. It is also possible, for example, for the first composition to form a partial cylinder with a 2/3 circumference and the second composition to form a partial cylinder with a 1/3 circumference. However, it is preferred that the two compositions each form a half cylinder. In other words, if the passage is essentially cylindrical, the extrusion strand preferably has half cylinders of the same size.
  • a method for producing the toilet block wherein the partial region of the side wall of the passage with which the first composition is in contact and the partial region of the side wall of the passage with which the second composition is in contact have a substantially equal area.
  • the invention relates to a device comprising at least one toilet block according to one of the preceding claims, wherein the at least one toilet block is present in a chamber of the device, wherein the device can be attached to the edge of a toilet.
  • the device has at least two, preferably at least three and more preferably at least four toilet blocks.
  • the dispensing device consists of a container which has an inlet opening at its head end through which flushing water can enter the container via the flushing water distribution element.
  • the flushing water entering the container dissolves some of the toilet cleaning block stored in the container, whereby the flushing water, now loaded with the corresponding preparation, leaves the container via the outlet opening and is thus dispensed into the interior of the toilet bowl.
  • the flush water distribution element is shaped like a plate. In addition, however, tub-like, slide-like or ramp-like shapes and any combination of these are also possible.
  • the flush water distribution element engages the flush water flow of the toilet bowl, whereby the main flow direction of the flush water flow is usually directed downwards in the direction of gravity.
  • the flush water flow is broken by the flush water distribution element, which acts like a baffle plate, and distributed over the surface of the flush water distribution element.
  • the surface of the flush water distribution element facing the flush water flow can have liquid-conducting and/or liquid-distributing structures, such as transverse and/or longitudinal grooves, capillaries or grids.
  • the flushing water distribution element can further comprise an opening through which flushing water can flow into the inlet opening of the container.
  • the toilet basket shown has a holding element by which the toilet basket can be detachably attached to the edge of a toilet bowl by a user.
  • the holder has a first spring element and a second spring element, wherein when the toilet flusher is installed in the toilet, the first spring element has a substantially vertical spring travel and the second spring element has a substantially horizontal spring travel, thereby enabling an improved and more flexible fixation of the toilet basket to toilets with different bowl edge thicknesses and designs.
  • the dispensing device has a plate-like flush water distribution element which, when the dispensing device is installed in a toilet bowl, extends directly from below the inlet opening of the container in the direction of the toilet rim.
  • the passage has an internal cross-sectional area which is preferably approximately 1 to 10 cm 2 and more preferably 2 to 5 cm 2 .
  • the passage has an internal diameter which is preferably between 15 mm and 30 mm, more preferably between 15 and 25 mm and more preferably between 18 mm and 22 mm.
  • the ball volume is preferably 2 cm 3 to 20 cm 3 , more preferably 5 cm 3 to 15 cm 3 and more preferably 8 cm 3 to 9 cm 3 .
  • the ball diameter is preferably 10 mm to 40 mm, more preferably 15 mm to 30 mm and more preferably 22 mm to 28 mm.
  • the ball weight is preferably 5 to 30 g, more preferably 5 to 20 g and more preferably 10 to 15 g.
  • the invention relates to a method for producing a solid toilet block comprising a coextrusion step, wherein the at least one first composition and a second composition, before leaving a profile nozzle, are brought together in a passage of an extrusion head such that the first composition is in spatial contact with a portion of the side wall of the passage and the second composition is in spatial contact with another part of the side wall.
  • the method is designed such that the method further comprises: at least one cutting step, wherein the forming step cuts the extrudate into smaller units.
  • the method is designed such that the method further comprises: at least one cutting step, wherein the extrudate is cut into smaller units by the shaping step.
  • the cutting step preferably takes place substantially simultaneously with a shaping step, wherein the shaping step is preferably a sphere shaping step.
  • the method is designed such that the method further comprises: a forming step, wherein the extrudate is formed into a sphere by the forming step and the toilet block thus essentially has a spherical geometry.
  • the strand is cut to dimensions that are similar in all three spatial directions. Subsequent ball forming or spherical shaping is possible, but not absolutely necessary.
  • the method is designed such that the cutting step and the shaping step are carried out simultaneously.
  • the strand is cut by rotating rollers and simultaneously shaped into a ball by the roller mold.
  • Such methods are known for extrudates with a single composition from the production of chocolate balls.
  • it was surprisingly found that such methods for extrudates with two compositions interweave the two compositions in a spiral shape, i.e. like streaks.
  • Puricolor Violet PVI 23-L & was used as the violet pigment and PV Fast Green GNX as the green pigment.
  • Solvaperm Blue 2B was used as the blue dye, while Duasyn Brilliant Red F3B-SF Liquid was used as the red dye.
  • the quantities given are proportional weight percentages based on the total weight of the toilet block.
  • toilet blocks were provided with a colored phase 1 and a white phase 2, with at least one pigment being used (colored pigment in phase 1 and/or titanium dioxide as a white pigment in phase 2).
  • at least one pigment being used (colored pigment in phase 1 and/or titanium dioxide as a white pigment in phase 2).
  • Particularly spectacular results were seen here when a colored pigment was used in the first phase and titanium dioxide as a white pigment in the second phase. Even if titanium dioxide is not absolutely necessary for coloring in the white phase, it does stabilize the phase boundary additionally.
  • phase boundary can be further stabilized by additionally using titanium dioxide in one of the two phases and, even more preferably, in both phases.
  • the spherical toilet blocks were obtained according to the described non-concentric coextrusion process.
  • the two phases showed a spiral, intertwined course.
  • Phase 1 or “Phase 2” corresponds to the first composition or the second composition, respectively, according to the terminology otherwise used in the application.
  • the toilet blocks were placed in a device, attached to the edge of a toilet and tested by flushing, with all toilet blocks showing essentially uniform flushing of the two compositions.
  • compositions can contain only anionic surfactants, only non-ionic surfactants or mixtures of these. Cationic surfactants are also conceivable.
  • the compositions listed are therefore only examples and should not be understood as limiting.
  • Figure 1 shows an extruder head (105) having a passage (110) which is used in a method for producing a solid toilet block according to the prior art.
  • the extruder head provides an extrudate having at least a first composition (121) and a second composition (122).
  • the first composition and the second composition differ from each other.
  • the production of the toilet block comprises a coextrusion step which takes place concentrically.
  • the first composition is in spatial contact with the entire side wall of the passage (110a), while the second composition is not in spatial contact with the side wall of the passage.
  • Figure 2 shows an extruder head (205) having a cylindrical passage (210) which is used in a method for producing a solid toilet block according to the invention.
  • the extruder head provides an extrudate having at least a first composition (221) and a second composition (222).
  • the first composition and the second composition differ from one another.
  • the production of the toilet block comprises a coextrusion step which takes place non-concentrically.
  • the first composition is in spatial contact with a partial area of the side wall of the passage (210a), while the second composition is in contact with another partial area of the side wall (210b) of the cylindrical passage.
  • Figure 3 shows a device (300) comprising an extruder head (305) having a passage (310), which is used in a method to produce a solid toilet block according to the invention.
  • the extruder head provides an extrudate comprising at least a first composition (321) and a second composition (322).
  • the first composition and the second composition differ from one another.
  • the production of the toilet block comprises a coextrusion step which is carried out non-concentrically.
  • the first composition is in spatial contact with a partial area of the side wall of the passage (310a), while the second composition is in contact with another partial area of the side wall (310b) of the passage.
  • the initially separated strands are combined in the extruder head.
  • the coextruded strand is passed through a Profile nozzle (312) is pressed out of the extruder head.
  • One or more cutting steps follow.
  • the method is designed such that the block is divided into smaller units by several cuts. The cuts can be made simultaneously or at different times.
  • Figure 4 shows a WC block (402) which was manufactured by means of a coextrusion step which is carried out non-concentrically.
  • the WC block consists of two half cylinders, one half cylinder consisting of a first composition (421) and the other half cylinder consisting of a second composition (422).
  • the toilet block shown was obtained without a subsequent ball forming step, ie the cylindrical extrudate was only cut and thus divided into smaller pieces.
  • Figure 5 shows a toilet block (502) that was produced by means of a coextrusion step that is non-concentric.
  • the extrudate which consists of two half-cylinders, one half-cylinder consisting of a first composition (521) and the other half-cylinder consisting of a second composition (522), was cut into smaller pieces and formed by means of a ball-forming step, i.e. the cylindrical extrudate was cut and formed into a ball.
  • a ball-forming step the two compositions are "interwoven" with one another on the surface and form a spiral pattern, the two compositions being interwoven with one another in a streak-like manner and occupying approximately equal areas of the surface of the toilet block.
  • Such a distribution of the compositions on the surface of the block can be achieved in particular by simultaneously cutting and ball-forming a cylindrical (non-concentric) coextrudate.
  • the cylindrical coextrudate is positioned between two rotating rollers that "cut" the elongated strand into the individual toilet blocks and at the same time form each block into a ball.
  • Such processes are known from the field of chocolate ball production.
  • Manufacturers of corresponding machines known as rolling machines for chocolate balls include, for example, the company Krüger & Salecker Maschinenbau GmbH & Co. KG, with the ARM 0252 - 0601 type being particularly preferred.
  • the phase boundaries are extended and, due to the curved spiral course, are particularly susceptible to color diffusion. The phase boundaries are therefore particularly "blurred".
  • the effect according to the invention which occurs when at least one of the compositions contains pigments, and thus the phases can be clearly separated from one another, is therefore particularly striking.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (5)

  1. Pierre de WC solide (402, 502) comprenant au moins une première composition (121, 221, 321, 421, 521) et une deuxième composition (122, 222, 322, 422, 522), caractérisée en ce que
    ladite première composition (121, 221, 321, 421, 521) ainsi que ladite deuxième composition (122, 222, 322, 422, 522) forment au moins partiellement la surface de la pierre de WC (402, 502) ; et en outre
    ladite première composition (121, 221, 321, 421, 521) et/ou ladite deuxième composition (122, 222, 322, 422, 522) comprend un pigment ; et dans lequel
    la pierre de WC présente une géométrie sphérique, caractérisée en ce que ladite première composition (121, 221, 321, 421, 521) et ladite deuxième composition (122, 222, 322, 422, 522) forment un motif en spirale sur la surface de la pierre de WC (402, 502).
  2. pierre de WC selon la revendication 1, dans laquelle l'une des premières compositions (121, 221, 321, 421, 521) et/ou l'une des deuxièmes compositions (122, 222, 322, 422, 522) comprend un pigment blanc comme pigment.
  3. pierre de WC selon la revendication 1, dans laquelle la première composition (121, 221, 321, 421, 521) comprend un pigment coloré et un pigment blanc et la deuxième composition (122, 222, 322, 422, 522) comprend un pigment blanc.
  4. dispositif comprenant au moins une pierre de WC selon l'une des revendications précédentes, dans lequel
    le au moins un bloc WC est présent dans une chambre du dispositif, le dispositif pouvant être monté sur le bord d'une toilette.
  5. dispositif selon la revendication précédente, dans lequel
    le dispositif comprend au moins deux, de préférence au moins trois et plus préférablement au moins quatre blocs WC.
EP21172204.6A 2021-05-05 2021-05-05 Bloc pour toilettes comprenant deux compositions différentes à pigments Active EP4086331B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21172204.6A EP4086331B1 (fr) 2021-05-05 2021-05-05 Bloc pour toilettes comprenant deux compositions différentes à pigments
PCT/EP2022/060690 WO2022233595A1 (fr) 2021-05-05 2022-04-22 Bloc de toilettes contenant deux compositions différentes comprenant des pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21172204.6A EP4086331B1 (fr) 2021-05-05 2021-05-05 Bloc pour toilettes comprenant deux compositions différentes à pigments

Publications (2)

Publication Number Publication Date
EP4086331A1 EP4086331A1 (fr) 2022-11-09
EP4086331B1 true EP4086331B1 (fr) 2024-06-12

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EP21172204.6A Active EP4086331B1 (fr) 2021-05-05 2021-05-05 Bloc pour toilettes comprenant deux compositions différentes à pigments

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EP (1) EP4086331B1 (fr)
WO (1) WO2022233595A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2342922B (en) * 1998-10-19 2002-12-24 Jeyes Group Plc Lavatory cleansing block
GB0428559D0 (en) * 2004-12-31 2005-02-09 Jeyes Group Ltd Lavatory cleansing block
EP3628726B1 (fr) * 2018-09-27 2025-07-16 Henkel AG & Co. KGaA Bloc désodorisant pour wc comprenant deux compositions différentes

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WO2022233595A1 (fr) 2022-11-10
EP4086331A1 (fr) 2022-11-09

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