EP2212411B1 - Neue seifenstücke - Google Patents

Neue seifenstücke Download PDF

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Publication number
EP2212411B1
EP2212411B1 EP08852269A EP08852269A EP2212411B1 EP 2212411 B1 EP2212411 B1 EP 2212411B1 EP 08852269 A EP08852269 A EP 08852269A EP 08852269 A EP08852269 A EP 08852269A EP 2212411 B1 EP2212411 B1 EP 2212411B1
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EP
European Patent Office
Prior art keywords
bar
dimples
detergent bar
detergent
bars
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
EP08852269A
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English (en)
French (fr)
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EP2212411A2 (de
Inventor
Sanjeev Kumar Das
Patrick De Barros Fernandes
Nayantara Pai
Rajan Raghavachari
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.)
Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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Publication of EP2212411A2 publication Critical patent/EP2212411A2/de
Application granted granted Critical
Publication of EP2212411B1 publication Critical patent/EP2212411B1/de
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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
    • C11D9/00—Compositions of detergents based essentially on soap
    • 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
    • C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
    • C11D13/14—Shaping
    • C11D13/16—Shaping in moulds

Definitions

  • the present invention relates to detergent bars, more particularly to personal wash detergent bars.
  • Personal wash bars based on soap are commonly used for cleansing the human body.
  • soap alkali metal salts of fatty acids
  • a wide variety of additives have been suggested for inclusion in toilet bars to enhance the physical properties of the bar, inter-alia; hardness, wear-rate, reduction in mush, and in-use and post-use properties.
  • lather has always been one of the most important properties, and several attempts have been made in the prior art to improve the quality of lather i.e. more creamier lather, and/or to increase the amount of lather.
  • US 2005/0276828 (Unilever) is one example of a patent in which a soap composition is used along with a scrubber having a fibrous network of bonded fibres. This arrangement is said to create substantial lather during its use.
  • BE-A-633 018 describes a soap bar having a convex surface in which can be located for examples dimples or recesses.
  • the present inventors have surprisingly found that the lather profile of detergent bars, more specifically personal wash bars is significantly enhanced when the soap bar contains certain structural features.
  • WO 1991/013970 (O'ROURKE, Peter, William ) and WO 1996/014390 (GEORGIADES DEMETRIOS ) each describe a soap bar having a concave surface provided with plurality of indentations or dents or stepped grooves, which is provided primarily to accommodate a piece of remnant (left over) soap which otherwise becomes practically unusable because of its small and irregular size.
  • the indentations/dents are provided so that the remnant soap piece can snugly or tightly fit into the cavity with the aid of the dents, which are adapted to inter-fit with the complementary surface of the remnant piece of soap. While these patents describe soap bars having peculiar structural features, before the first use of the principal bar, the user is required to insert the remnant piece of soap into the cavity.
  • the concave surface is on a major face of the bar.
  • the dimples are circular, elliptical, ellipsoidal or oval in plan view.
  • the dimples are disposed so as to define an elliptical, ellipsoidal, circular or oval pattern on said concave surface.
  • the dimples are preferably arranged in a concentric pattern.
  • the depth of the dimples is from 0.5 mm to 10 mm.
  • the concave surface is immediately adjacent to both the first minor side and the second minor side.
  • the second major side has a centrally disposed flattened area immediately adjacent to both opposed ends and both opposed minor sides of the toilet bar.
  • a channel peripherally disposed within the centrally disposed flattened area of the second major side of the toilet bar.
  • pair of stamping dies having inner surfaces complementary to the surface of the bar.
  • a mould for making a detergent bar comprising a pair of dies which upon engagement define a cavity complementary to the shape of the bar.
  • a stamping die for making a detergent bar comprising a pair of dies which upon engagement define a cavity complementary to the shape of the bar.
  • a method of cleansing the skin with a detergent bar comprising the steps of:
  • a detergent bar especially personal wash bar (also known as toilet soap) is an important feature. It is often made attractive and aesthetically and visually appealing so that this feature can be used to promote the sales of the product. In addition to making the bar attractive, certain peculiarly shaped bars have also been linked to functional benefits.
  • An example of functional shaped bar is a "massage bar" which has a plurality of projections. The present inventors have found that detergent bars, more specifically personal wash bars that have a concave surface having a plurality of dimples, surprisingly provide significantly enhanced lather as compared to bars which are devoid of said features.
  • the present invention is primarily directed towards personal wash bars (i.e. toilet soaps), other type of detergent bars such as "soap based" fabric washing bars, a well known example of which is SUNLIGHTTM, and surfactant based fabric washing bars, an example of which is RINTM bar. Further, the invention can also be useful in dish-wash bars.
  • personal wash bars i.e. toilet soaps
  • other type of detergent bars such as "soap based" fabric washing bars, a well known example of which is SUNLIGHTTM, and surfactant based fabric washing bars, an example of which is RINTM bar.
  • the invention can also be useful in dish-wash bars.
  • the bars could be made by the well known process of milling and plodding, followed by stamping with the help of appropriately shaped stamping dies, or by the process of obtaining a soap-melt, casting in moulds, followed by cooling, to obtain bars which are well known in the art as cast-bars or framed-bars.
  • the appropriate moulds may be used to get the desired shape of the bars.
  • the bars could be single-phase or multi-phase bars.
  • the concave surface is on the major face of the bar, i.e. the surface forms either the top or bottom face of the bar.
  • the concavity can be on more than one face.
  • the minor face in case of rectangular tablet shaped bars, also known as billets, is defined by the lateral sides, which dictates the thickness of the bars.
  • the depth of the concavity of the concave surface is from 1% to 50% of the thickness of the bar. It is further preferred that this depth is from 10-25%.
  • the concave surface occupies from 20% to 95% of the area of the major face. This means that the concavity extends across the length and breadth of the bar to the extent specified, leaving respectively approximately 80 to 5% non-concave or flat portions. It is further preferred that the concave surface occupies from 60 to 90% of the area of the major face.
  • the bar can have any known shape, such as ovoid or rectangular, circular or cube-like, it is more preferred that the bar is saddle shaped. These can be fully rectangular, rectangular with rounded edges, or a saddle shape with rounded edges.
  • a saddle shape is a shape where the soap bar, along its major axis is convex on one side and concave on the other side.
  • the dimples are circular, elliptical, ellipsoidal or oval in plan view.
  • the dimples can be of other known shapes such as rectangular, octagonal, triangular, square, trapezoidal or hexagonal. It is further preferred that the dimples are disposed so as to define an elliptical, ellipsoidal, circular or oval pattern on the concave surface of the bar.
  • the pattern could be of other known shapes such as rectangular, octagonal, triangular, square, trapezoidal or hexagonal.
  • the dimples preferably occupy from 10% to 90% area of the concave surface and more preferably from 20 to 70% area.
  • the depth of the dimples is from 0.5 mm to 10 mm, more preferably from 1 mm to 4 mm.
  • the ratio between the depth of the dimples to the thickness of the bar is from 0.02 to 0.3, most preferably this ratio is from 0.06 to 0.2 for optimum benefits in terms of lather profile.
  • the thickness of the bar is preferably between 10 mm and 40 mm.
  • the dimples present on the concave surface may also be known by the equivalent terms depressions, dents or indentations.
  • the soap content is from 20 to 80 % by weight, more preferably from 40-75 by weight%. Where %'s of compositions are described herein, unless other specified the %'s are by weight.
  • the predominant wash-active agent in the detergent composition of the present invention could be any conventional soap, otherwise referred to as fatty acid salt.
  • the soap may be derived from one or a mixture of C 8 -C 22 , preferably C 12 -C 18 straight or branched chain, saturated or unsaturated monocarboxylic acids, of natural or synthetic origin. Natural sources, e. g. animal, marine or vegetable fats and oils, almost always yield mixtures of these fatty acids, all of which may be employed.
  • fatty acids examples thereof include the fatty acids derived from coconut oil, olive oil, palm kernel oil, tall oil, soy bean oil, cottonseed oil, peanut oil, safflower oil, sunflower seed oil, corn oil, fish oils, tallow, and the like.
  • individual fatty acids include capric, lauric, myristic, stearic, oleic, palmitic, palmitoleic, ricinoleic, linoleic, and linolenic acid and the like.
  • the fatty acids may also be derived synthetically by paraffin oxidation, oxo-synthesis, or the like.
  • the cation or salt portion of the soap is preferably an alkali metal such as potassium and, especially, sodium, but may alternatively be an alkaline earth metal such as calcium or magnesium, or ammonium, substituted ammonium, or organic amine such as a lower alkylamine or a lower alkanolamine.
  • Tallow fatty acids can be derived from various animal sources and generally comprise about 1-8% myristic acid, about 21-32 % palmitic acid, about 14-31% stearic acid, about 0-4% palmitoleic acid, about 36-50% oleic acid and about 0-5% linoleic acid.
  • a typical distribution is 2.5 % myristic acid, 29% palmitic acid, 23% stearic acid, 2% palmitoleic acid, 41.5% oleic acid, and 3 % linoleic acid.
  • Other similar mixtures, such as those from palm oil and those derived from various animal tallow and lard are also included.
  • Coconut oil refers to fatty acid mixtures having an approximate carbon chain length distribution of 8% C 8 , 7% C 10 , 48% C 12 , 17 % C 14 , 8% C 16 , 2% C 18 , 7% oleic and 2% linoleic acids (the first six fatty acids listed being).
  • Coconut oil employed for the soap may be substituted in whole or in part by other "high-lauric" oils, that is, oils or fats wherein at least 50% of the total fatty acids are composed of lauric or myristic acids and mixtures thereof. These oils are generally exemplified by the tropical nut oils of the coconut oil class.
  • they include palm kernel oil, babassu oil, ouricuri oil, tucum oil, cohune nut oil, murumuru oil, jaboty kernel oil, khakan kernel oil, dika nut oil, and ucuhuba butter.
  • a preferred soap is a mixture of about 30% to about 40% coconut oil and about 60% to about 70% tallow. Mixtures may also contain higher amounts of tallow, for example, 0.01% to 20% coconut and remaining tallow.
  • the soaps may contain unsaturation in accordance with commercially acceptable standards. Excessive unsaturation is normally avoided. It is preferred that the detergent composition comprises 0.5 % to 5 %, more preferably from 0.5 % to 2% by weight surfactant selected from anionic, non-ionic, amphoteric, betaines or zwitterionic surfactants. Cationic surfactants are not generally suited for the present invention, as they tend not to be compatible with the predominantly anionic atmosphere of the composition, due to the relatively large proportion of fatty acid soaps. It is however stated that traces of cationic surfactants, when present in the composition as impurity, or when otherwise added, do not cause any notable undesirable effect.
  • the synthetic detergents contemplated as surfactants under this invention are compounds other than soap whose detersive properties, like soap, are due to the presence of a hydrophilic and a hydrophobic group in the molecule.
  • the detergent composition of the present invention could also comprise any or all of the following ingredients used for example to increase its shelf life, aesthetics or functionality.
  • Vitamins such as vitamin A and E, and vitamin alkyl esters such as vitamin C alkyl esters; lipids such as cholesterol, cholesterol esters, lanolin, ceramides, sucrose esters, and pseudo-ceramides; liposome forming materials such as phospholipids, and suitable amphiphilic molecules having two long hydrocarbon chains; essential fatty acids, poly unsaturated fatty acids, and sources of these materials; triglycerides of unsaturated fatty acids such as sunflower oil, primrose oil, avocado oil, almond oil; vegetable butters formed from mixtures of saturated and unsaturated fatty acids such as shea butter; mineral such as sources of zinc, magnesium, and iron; skin conditioners such as silicone oils, gums and modifications thereof such as linear and cyclic polydimethylsiloxanes, amino, alkyl, and alkylaryl silicone oils; hydrocarbons such as liquid paraffins, petrolatum, VASELINETM, microcrystalline wax, ceresin, squalene, pristan, paraffin wax and mineral oil;
  • the composition may also include a deep cleansing agent.
  • Deep cleansing agents include antimicrobials such as 2-hydroxy-4,2',4'-trichlorodiphenylether (DP300TM), 2,6-dimethyl-4-hydroxychlorobenzene (PCMX), 3,4,4'-trichlorocarbanilide (TCC), 3-trifluoromethyl-4,4'-dichlorocarbanilide (TFC), benzoyl peroxide, zinc salts, and tea tree oil.
  • anti-acne agents such as salicylic acid, lactic acid, glycolic acid, and citric acid, and benzoyl peroxide (also an anti-microbial agent); oil control agents including sebum suppressants, mattifiers such as silica, titanium dioxide, oil absorbers, such as microsponges; astringents including tannins, zinc and aluminium sales, plant extracts such as from green tea and Witchhazel (Hammailes); scrub and ex-foliating particles, such as polyethylene spheres, agglomerated silica, sugar, ground pits, seeds, and husks such as from walnuts, peach, avocado, and oats, salts; cooling agents such as menthol and its various derivatives and lower alcohols; fruit and herbal extracts; skin calming agents such as aloe vera; essential oils such as mentha, jasmine, camphor, white cedar, bitter orange peel, ryu, turpentine, cinnamon, bergamot, citrus unshiu, cal
  • benefit agents include anti-ageing compounds and skin lightening agents, antioxidants such as, for example, butylated hydroxytoluene (BHT) may be used advantageously in amounts of about 0.01% or higher if appropriate.
  • antioxidants such as, for example, butylated hydroxytoluene (BHT) may be used advantageously in amounts of about 0.01% or higher if appropriate.
  • the particle size of the ex-foliants preferably lies between 50 microns to 1000 microns, more preferably 100 microns to 500 microns, most preferably 100 to 200 microns.
  • optical modifiers which are defined as materials that modify the optical texture or introduce a pattern to increase the distinctiveness of the bar.
  • suitable optical modifiers include speckles/bits such as ground fruit pits, seeds, polyethylene beads, mineral agglomerates, and loofha; reflective plate-like particles such as mica; pearlizing agents such as coated micas, and certain waxes; wax/plastic slivers that resemble for example fruits slices; vegetable or fruit slivers, mattefiers such as TiO2 and mixtures of the above.
  • the bar composition of the invention may include 0 to 25 % by weight of crystalline or amorphous aluminium hydroxide.
  • the said aluminium hydroxide can be generated in-situ by reacting fatty acids and/or non-fatty mono- or polycarboxylic acids with sodium aluminate, or can be prepared separately by reacting fatty acids and/or non-fatty mono- or polycarboxylic acids with sodium aluminate and adding the reaction product to the soap.
  • Another class of hardening agents are insoluble inorganic or mineral solids that can structure the discontinuous phase by network formation or space-filling. These include fumed, precipitated or modified silica, alumina, calcium carbonate, kaolin, and talc.
  • Alumino-silicate clays especially synthetic or natural hectorites can also be used.
  • suitable bar structurants that provide integrity to the bar could also be used.
  • Water insoluble structurants also have a melting point in the range 40-100°C, more preferably at least 50°C, notably 50°C to 90°C.
  • Suitable materials which are particularly envisaged are fatty acids, particularly those having a carbon chain of 12 to 24 carbon atoms. Examples are lauric, myristic, palmitic, stark, arachidic and behenic acids and mixtures thereof. Sources of these fatty acids are coconut, topped coconut, palm, palm kernel, babassu and tallow fatty acids and partially or fully hardened fatty acids or distilled fatty acids.
  • Other suitable water insoluble structurants include alkanols of 8 to 20 carbon atoms, particularly cetyl alcohol. These materials generally have a water solubility of less than 5 g/litre at 20°C.
  • Other structurants may include particulate solids such as talc, starch (e.g., maltodextrin) or clay.
  • talc talc
  • starch e.g., maltodextrin
  • clay e.g., talc, talc, starch (e.g., maltodextrin) or clay.
  • the relative proportions of the water soluble structurants and water insoluble structurants govern the rate at which the bar wears during use.
  • the presence of the water-insoluble structurant tends to delay dissolution of the bar when exposed to water during use and hence retard the rate of wear.
  • composition can be made multi-coloured, e.g., striped, through the judicious use of dye as is well known in the art.
  • the benefit agents generally comprises about 0-25% by wt. of the composition, preferably 5-20%, and most preferably between 2 and 10%.
  • bar compositions of the invention generally comprise about 1 to 30%, preferably 2 to 25%, more preferably 3 to 12% by wt. water.
  • Bar compositions of the invention typically have pH of about 6 to 11, preferably above 7. The amount of water could differ in the case of cast bars.
  • melt-cast bars In the case of melt-cast bars, the process includes a step of moulding a detergent bar using a mould having inner surface complementary to the surface of the bar. All other stages of making the bar and the formulations thereof are known to a person skilled in the art.
  • the process for making the bars includes a step of stamping a moulded or extruded detergent bar using a pair of stamping dies, having inner surface complementary to the surface of the bar.
  • the invention relates to the use of the detergent bar.
  • the mould or stamping die generally includes a pair of dies adapted to be fitted to each other.
  • the dies are manufactured preferably from any rigid material with high thermal conductivity preferably metals such as aluminium and its alloys.
  • Each die is provided with an internal surface, the size and shape of which may vary depending on form of the detergent bar.
  • the dies when in engagement along the rim define a cavity complementary to the shape of the detergent bar.
  • the volume of the total cavity would range from 10 to 170 ml and the shape may be circular, oval, square, rectangular or any other form as desired.
  • At least one inside surface of the cavity is convex which gives the concavity to the detergent bars during moulding.
  • the inside surface of the cavity is coated with a material having a lower surface energy than the moulded detergent bar. That is, the cavity defining surfaces of the dies are coated with a material having lower surface energy than the cast article.
  • the inside surface of the cavity is optionally provided with mirror images of inscriptions such as lettering or figures desired on the surface of the detergent bar, either as projections or depressions.
  • the inscription is preferably designed such that the rim of the mirror images of the inscription is not exactly perpendicular to the die surface, but is appropriately bevelled.
  • the mirror image of the inscription on the inner die surface should be free from burrs and blemishes, and preferably be carefully polished.
  • soap bar 10 has a major (bottom) face 8 having concave surface 1 and flat surfaces 2 and 3.
  • the surface 1 has plurality of circular, oval, elliptical and ellipsoidal shaped dimples (which have been represented by numeral 4). These dimples 4 are disposed so as to define an elliptical pattern on the concave surface 1.
  • FIG-2 which shows the longitudinal sectional view taken through an imaginary line along 2-2
  • the dimples 4 can be seen in this view disposed on the concave surface 1, which can be better seen in this view.
  • the depth of some of the dimples 4 can also be seen.
  • the minor side 5 which is one of the two opposed minor sides of the bar 10 can also be seen.
  • Figure-3 is the isometric view of the bar 10, the major face 8 having concave surface 1 is bounded or flanked on both sides by flat surfaces 2 and 3 and opposed minor ends 6.
  • a plurality of dimples 4 can be seen on the surface 1.
  • opposed minor sides 5 can also be seen.
  • Minor side 5 represents the length of the bar along its major axis
  • side or end 6 represents the thickness of the bar as measured along a line normal to major face 8.
  • Each side 5 and end 6 also represents a minor face of the bar.
  • soap bar 20 has a major (bottom) face 12 having concave surface 1 and flat surfaces 2 and 3.
  • the surface 1 has four roughly triangular shaped dimples 7 and elliptical dimples 4 arranged in a concentric pattern.
  • FIG-5 which shows the longitudinal sectional view taken through an imaginary line along 5-5
  • the triangular shaped dimples 7 can be seen in this view disposed on the concave surface 1, which can be better seen in this view.
  • the depth of some of the triangular dimples 7 can also be visualised.
  • Minor side 5 which represents the length of the bar is also seen. This is one of the minor faces of the bar.
  • FIG-6 is the isometric view of the bar 20
  • major face 12 having concave surface 1 is flanked on both sides by flat surfaces 2 and 3.
  • a plurality of dimples 4 and 7 can be seen on the surface 1.
  • the sides 5 and ends 6 can also be seen.
  • Side 5 represents the length of the bar
  • end 6 represents the thickness of the bar as measured along a line normal to major face 12.
  • Each side 5 and end 6 represents a minor face of the bar.
  • Figure 7 shows the longitudinal sectional view taken through an imaginary line 7-7 of the bar depicted in Figure 5 , some of the dimples 4 and 7 can be seen in this view disposed on the concave surface 1. In addition the depth of certain dimples 4 and 7 can also be seen.
  • FIG 8 shows the longitudinal sectional view taken through an imaginary line along 8-8 of the bar depicted in Figure 2 , some of the dimples 4 can be seen in this view disposed on the concave surface 1. In addition the depth of certain dimples 4 can also be seen.
  • Figure 9 shows the top perspective view of the bar 10 showing major side or face 40, one end 6 and one minor side 5. This is the same for bar 20 in a preferred embodiment. Also shown is centrally disposed generally flattened area 30 disposed adjacent to opposed minor sides 5 and opposed ends 6. Depressed areas 36 and flattened areas 38 are disposed on face 40 and are situated adjacent to and outside flattened area 30. Channel 32 surrounded by shelf 34 are disposed inside and on the periphery of generally flattened area 30.
  • FIG 10 shows the top plan view of bar 10 showing major side or face 40, opposed ends 6 and opposed minor sides 5, this is the same for bar 20 in a preferred embodiment. Also shown is centrally disposed generally flattened area 30 disposed adjacent to opposed minor sides 5 and opposed ends 6. Depressed areas 36 and flattened areas 38 are disposed on face 40 and are situated adjacent to and outside flattened area 30. Channel 32 surrounded by shelf 34 are disposed inside and on the periphery of generally flattened area 30.
  • FIG. 11 what is shown is an end elevational view of bar 10 with end 6 bounded by top major face 40, bottom major face 8 and opposed minor sides 5.
  • Bar 20 is identical but having face 12 instead of face 8 in a preferred embodiment.
  • FIG. 12 what is shown is an elevational view of bar 10 with minor side 5 bounded by top major face 40, bottom major face 8 and opposed ends 6.
  • Bar 20 is identical but having face 12 instead of face 8 in a preferred embodiment.
  • Table 1 Ingredients Wt % Anhydrous Soap 15 Coconut oil 74.52 Hydrated Magnesium Silicate 8.0 Titanium di oxide 0.3 Glycerine 2.0 Trichlorocarbanilide 0.2 Perfume 0.7 Sodium chloride 0.7 Water and other minors Up to 100 Table 2 Bar Attributes Control bar Figure 1 Figure 4 % wear 17.31 13.25 13.25 Residual Mush in Tray (Score on 0-4 scale) 2.67 2.0 2.0 24 °FH Lather Volume (ml) 228 270 277 24 °FH Tablet Wear 9.67 7.0 8.33 24 °FH Lather ROW Index 2369 3857 3329 4 °FH Lather Volume (ml) 333 332 340 4 °FH Tablet Wear 9.67 6.67 7.33 4 °FH Lather ROW Index 3459 5004 4658
  • the residual mush in the drained tray was recorded on a scale of 0-4.
  • Lather was generated by trained technicians following standard protocol. Test tablets were washed down at least 10 minutes before starting the test sequence. This was best done by twisting them about 20 times through 180° under running water. 5 1 of water of known hardness was taken in a bowl which was kept at a specified temperature reflecting local conditions. In this test, the average temperature of water was 30°C and the average relative humidity was maintained at 51% at 31°C. The tablets were dipped in water and then removed. Tablets were twisted 15 times between the hands through 180° and then placed on soap dishes. Lather was generated while holding the bars and by rubbing one hand on the other 10 times with both hands moving in the same direction. The right hand was gripped with left hand, or vice versa, forcing the lather to the tips of the fingers.
  • the lather ROW Index was calculated based on lather volume and the tablet wear. This denotes the effective performance of the bars in terms of lathering as it takes into account the amount of tablet wear too.

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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)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Cosmetics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (15)

  1. Seifenstück, das umfasst:
    a. eine erste Hauptseite, eine gegenüberliegende zweite Hauptseite, eine erste Nebenseite, eine gegenüberliegende zweite Nebenseite, ein erstes Ende und ein gegenüberliegendes zweites Ende;
    b. wobei die erste Hauptseite einen mittig angeordneten konkaven Bereich besitzt, der von jedem der gegenüberliegenden ersten und zweiten Enden durch einen abgeflachten Bereich getrennt ist; und
    c. wobei der konkave Bereich mehrere Vertiefungen besitzt und wobei das Verhältnis zwischen der Tiefe der Vertiefungen zu der Dicke des Stücks im Bereich von 0,02 bis 0,3 liegt.
  2. Seifenstück nach Anspruch 1, wobei die konkave Oberfläche an die erste Nebenseite und an die zweite Nebenseite direkt angrenzt.
  3. Seifenstück nach Anspruch 1 oder Anspruch 2, wobei die Tiefe der Konkavität der Oberfläche im Bereich von 1 % bis 50 % der Dicke des Stücks liegt.
  4. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die konkave Oberfläche 20 % bis 95 % der Fläche der Hauptfläche einnimmt.
  5. Seifenstück nach einem der vorhergehenden Ansprüche, wobei das Stück sattelförmig ist.
  6. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die Vertiefungen in der Draufsicht kreisförmig, elliptisch, ellipsoidförmig oder oval sind.
  7. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die Vertiefungen so angeordnet sind, dass sie auf der konkaven Oberfläche ein elliptisches, ellipsoidförmiges, kreisförmiges oder ovales Muster bilden.
  8. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die Vertiefungen in einem konzentrischen Muster angeordnet sind.
  9. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die Vertiefungen 10 % bis 90 % der Fläche der konkaven Oberfläche einnehmen.
  10. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die Tiefe der Vertiefungen im Bereich von 0,5 mm bis 10 mm liegt.
  11. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die Dicke des Stücks im Bereich von 10 mm bis 40 mm liegt.
  12. Seifenstück nach einem der vorhergehenden Ansprüche, wobei die zweite Hauptseite eine mittig angeordnete abgeflachte Fläche besitzt, die direkt an beide Enden oder an beide Nebenseiten angrenzt.
  13. Seifenstück nach Anspruch 12, das ferner einen eingetieften Bereich angrenzend an den abgeflachten Bereich und jedes der Enden des Stücks auf der zweiten Hauptseite umfasst.
  14. Verwendung eines Seifenstücks nach Anspruch 1.
  15. Verfahren zum Reinigen der Haut mit einem Seifenstück, das die folgenden Schritte umfasst:
    a. Vorsehen eines Seifenstücks nach Anspruch 1;
    b. Benetzen des konkaven Bereichs mit Wasser; und
    c. Reiben der Haut mit dem konkaven Bereich, um gleichzeitig die Haut zu reinigen und Schaum zu erzeugen.
EP08852269A 2007-11-21 2008-11-13 Neue seifenstücke Active EP2212411B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IN2292MU2007 2007-11-21
IN214190 2008-01-10
IN214191 2008-01-10
PCT/EP2008/065479 WO2009065766A2 (en) 2007-11-21 2008-11-13 Personal wash detergent bars

Publications (2)

Publication Number Publication Date
EP2212411A2 EP2212411A2 (de) 2010-08-04
EP2212411B1 true EP2212411B1 (de) 2012-04-25

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EP08852269A Active EP2212411B1 (de) 2007-11-21 2008-11-13 Neue seifenstücke

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EP (1) EP2212411B1 (de)
CN (1) CN101868527B (de)
AT (1) ATE555189T1 (de)
AU (1) AU2008328027B2 (de)
BR (1) BRPI0819060B1 (de)
EA (1) EA016833B1 (de)
EG (1) EG26288A (de)
MY (1) MY161072A (de)
WO (1) WO2009065766A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2613928C1 (ru) * 2016-02-18 2017-03-22 Владимир Викторович Черниченко Кусок мыла
RU2613933C1 (ru) * 2016-02-18 2017-03-22 Владимир Викторович Черниченко Кусок мыла

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633018A (de)
DE3934094A1 (de) * 1989-10-12 1991-05-08 Lothar Foerster Seifenstueck mit aufnahmemulde
WO1991013970A1 (en) * 1990-03-07 1991-09-19 Rourke Peter William O An improved soap cake
DE4318246A1 (de) * 1993-06-02 1993-11-18 Josef Kempa Feinseife mit Seifenmulde
GB9422302D0 (en) * 1994-11-04 1994-12-21 Georgiades Demetrios A Soap
RU2142000C1 (ru) * 1998-06-05 1999-11-27 Арутюнян Армен Сережаевич Способ безотходного употребления куска мыла и кусок мыла для его реализации
US7381692B2 (en) 2004-06-14 2008-06-03 Unilever Home & Personal Care, Usa Division Of Conopco, Inc. Bar soap with fibrous assembly

Also Published As

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WO2009065766A8 (en) 2010-07-08
EA016833B1 (ru) 2012-07-30
EP2212411A2 (de) 2010-08-04
MY161072A (en) 2017-04-14
CN101868527A (zh) 2010-10-20
WO2009065766A2 (en) 2009-05-28
CN101868527B (zh) 2012-07-18
EG26288A (en) 2013-06-12
BRPI0819060A2 (pt) 2015-05-05
WO2009065766A3 (en) 2009-07-30
EA201000834A1 (ru) 2010-12-30
BRPI0819060B1 (pt) 2018-02-06
AU2008328027B2 (en) 2011-03-17
ATE555189T1 (de) 2012-05-15
AU2008328027A1 (en) 2009-05-28

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