EP0014502B1 - Riegelseife - Google Patents
Riegelseife Download PDFInfo
- Publication number
- EP0014502B1 EP0014502B1 EP80200070A EP80200070A EP0014502B1 EP 0014502 B1 EP0014502 B1 EP 0014502B1 EP 80200070 A EP80200070 A EP 80200070A EP 80200070 A EP80200070 A EP 80200070A EP 0014502 B1 EP0014502 B1 EP 0014502B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- soap
- potassium
- bars
- soap bars
- present
- 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.)
- Expired
Links
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
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/26—Organic compounds, e.g. vitamins containing oxygen
-
- 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
- C11D17/006—Detergents in the form of bars or tablets containing mainly surfactants, but no builders, e.g. syndet bar
-
- 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
- C11D17/0095—Solid transparent soaps or detergents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/02—Compositions of detergents based essentially on soap on alkali or ammonium soaps
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/06—Inorganic compounds
- C11D9/08—Water-soluble compounds
- C11D9/10—Salts
Definitions
- soap bars and methods of making such soaps are known in the art.
- Many soap- making processes such as those described in U.S.-A-2,686,761, Ferguson et al., issued August 17, 1954, and U.S.-A-2,970,116, Kelly et al., issued January 31, 1961, utilize electrolytes, such as sodium chloride and potassium chloride, as processing aids.
- electrolytes such as sodium chloride and potassium chloride
- soaps frequently contain significant amounts of chloride anions.
- potassium soaps it has been found to be advantageous to utilize potassium soaps as, at least, a portion of soap compositions; this is especially true where the soap to be manufactured is transparent, since the presence of the potassium soap enhances transparency.
- the present invention is a soap bar which does not form undesirable crystals upon use or storage, and which contains from 60% to 95% alkali metal, ammonium or alkanolammonium soap including at least 1% potassium soap, from 0.15% to 0.7% chloride anions, from 4% to 25% moisture and from 0.2% to 5%, preferably from 0.5% to 3%, of an electrolyte selected from potassium carbonate, dipotassium monohydrogen orthophosphate, potassium citrate, sodium citrate and mixtures thereof.
- the soap bar is made from a transparent soap.
- the soap bars of the present invention are comprised mainly of a soap component. This. component is present in an amount of from 60% to 95%, preferably from 65% to 85%, of the finished soap. Soaps useful in the present invention are the alkali metal, ammonium and alkanolamine salts of fatty acids containing from 8 to 24, preferably 10 to 20, carbon atoms.
- the compositions of the present invention must contain at least 1%, preferably at least 2.5%, most preferably at least 4%, of a potassium soap. In one embodiment, the soap bars of the present invention contain at least 7%, more preferably from 7% to 20%, particularly from 10% to 17%, of a potassium soap.
- the potassium soap may be added per se to the compositions or else it may be formed in situ during processing (e.g. by including both a sodium soap and a potassium electrolyte in the soap bar).
- the presence of such a component is an important factor contributing to the crystallization problem which this invention seeks to solve. Since the utilization of potassium soap is highly desirable, especially in the manufacture of transparent soaps, the present invention provides a solution to this problem which is preferable to the elimination of these potassium soaps.
- Fatty acids suitable for use herein, can be obtained from natural sources such as, for instance, plant or animal esters (e.g., palm oil, coconut oil, babassu oil, soybean oil, castor oil, tallow, whale or fish oils, grease, lard, and mixtures thereof).
- the fatty acids can also by synthetically prepared (e.g., by the oxidation of petroleum, or by the hydrogenation of carbon monoxide by the Fischer-Tropsch process).
- Resin acids such as those present in tall oil, may be used. Naphthenic acids are also suitable.
- Sodium and potassium soaps can be made by direct saponification of the fats and oils or by the neutralization of the free fatty acids which are prepared in a separate manufacturing process.
- Particularly useful in the present invention are the sodium and potassium salts of mixtures of fatty acids derived from coconut oil and tallow, i.e., sodium and potassium tallow and coconut soaps.
- tallow is used herein in defining fatty acid mixtures having an approximate carbon chain length distribution of 2.5% C 141 29% C 16 , 23% C 18 , 2% palmitoleic, 41.5% oleic and 3% linoleic acids (the first three fatty acids listed being saturated). Other mixtures with similar distributions, such as fatty acids derived from various animal tallows and lard, are also included within the term tallow.
- 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 saturated).
- Other sources having similar carbon chain length distributions, such as palm kernel oil and babassu kernel oil, are included within the term coconut oil.
- coconut oil fatty acids ordinarily have a sufficiently low content of unsaturated fatty acids to have satisfactory keeping qualities without further treatment. Generally, however, the fatty acids are hydrogenated to decrease the amount of unsaturation (especially polyunsaturation) of the fatty acid mixture.
- the soap component comprises from 20% to 80% of a mixture containing soaps having from 8 to 14 carbon atoms, and from 20% to 80% of soaps having from 16 to 20 carbon atoms. Soaps having such preferred chain length distribution characteristics can be obtained by using mixtures of tallow and coconut fatty acids in tallow/coconut weight ratios varying between 90:10 and 50:50, more preferably between 80:20 and 60:40.
- the compositions of the present invention are particularly effective in inhibiting crystal growth when the mixture of tallow and coconut fatty acids contains at least 15%, and preferably at least 20%, of the coconut fatty acid component.
- Preferred soap bars containing the above-described soap mixtures, as well as their manufacture, are described in detail in Megson et al., U.S.-A-3,576,749, issued April 27, 1971, White, U.S.-A-3,835,058, issued September 10, 1974, and Seiden, U.S.-A-3,988,255, issued October 26, 1976.
- Chloride anions are generally introduced into soap compositions in the form of sodium chloride or potassium chloride electrolytes which are used to improve the processing (i.e. the separation of the soap from the alkaline materials) or the transparency of a soap composition.
- the heart of the present invention lies in the addition of from 0.2% to 5%, preferably from 0.5% to 3%, and most preferably from 1% to 3%, of specific electrolyte materials to the soap compositions defined herein. It is by the selection and the inclusion of these specific electrolytes that the crystallization negative, previously discussed, can be eliminated from soap bar compositions. Generally, the electrolytes are selected so that they have a relatively bulky anion and a water solubility which is significantly greater than that of sodium chloride (i.e., at least 100 g/l 00 ml in 25°C water).
- the electrolytes useful in the present invention are potassium carbonate, dipotassium monohydrogen orthophosphate (K Z HP0 4 ), sodium citrate, potassium citrate, and mixtures of these components.
- the electrolytes utilized particularly the carbonate and phosphate electrolytes, provide the soap bars of the present invention with superior lathering characteristics and reduced scum (i.e., calcium and magnesium soap) formation when compared with soap bars utilizing conventional electrolytes.
- compositions which include sodium and/or potassium (particularly potassium) citrates. These compositions offer advantages over those containing potassium carbonate in that they: (a) eliminate crystal formation in the interior of the soap bar (particularly important in transparent soap bars); (b) exhibit improved lather formation in hard water; (c) exhibit improved translucency; (d) require less mechanical work to obtain translucency; and (e) exhibit improved component (especially perfume and coloring) stability, since these preferred electrolytes complex heavy metal ions thereby reducing component oxidation.
- the present invention is particularly effective when used in milled, transparent soap bars, such as those described in U.S.-A-2,686,761, Ferguson et al., issued August 17, 1954.
- Such soap bars preferably have a high level, such as at least 70%, of beta-phase material, as described.
- the soap bars of the present invention inevitably contain some moisture (water). Moisture aids in the processing of the soap bars herein and is required for optimum processing conditions.
- the finished soap bars of this invention include from 4% to 25% by weight, preferably from 10% to 23% by weight, moisture.
- the soap bars of the present invention can contain a wide variety of optional materials.
- optional materials include, for example, skin conditioning components, free fatty acids, processing aids, anti-bacterial agents and sanitizers, dyes, perfumes and coloring agents.
- the soap bars of the present invention can optionally contain free fatty acids, in addition to the neutralized fatty acids which form the actual soap component. Free fatty acids improve the volume and especially the quality of the lather from the bar. Free fatty acids tend to cause the lather to be more stable, containing smaller air bubbles, which give the user a lather which is characterized as "richer" and creamier. In addition, in soap bars which contain large amounts of salt, the free fatty acids act as plasticizers. Without the free fatty acids, some bars have a greater tendency to form wet cracks.
- Free fatty acids useful in the present invention include the same types of fatty acids used to form the soap component. Such fatty acids generally contain from 8 to 20, preferably from 8 to 14, carbon atoms. In preferred soap bars, at least 25% of the free fatty acid component is the C 12 fatty acid. If present, free fatty acid generally comprises from 1 % to 15% by weight of the bar. Use of free fatty acid in soap bars is described in more detail in Megson et al., U.S.-A-3,576,749, issued April 27, 1971, and White, U.S.-A-3,835,058, issued September 10, 1974.
- salt sodium chloride
- glycerine preferably, glycerine
- Such materials can be added to the crutcher or amalgamator in order to facilitate processing of the soap bars.
- Such materials if present, generally comprise from 0.2% to 10% by weight of the finished soap bar.
- emulsifiers such as polyglycerol esters (e.g. polyglycerol monostearate), propylene glycol esters and other chemically stable nonionic materials may be added to the bars to help solubilize various components, particularly skin conditioning agents, such as sorbitan esters.
- anti-bacterial agents and sanitizers can be added to the soap bars of the present invention without adversely affecting their crystal inhibition properties.
- Typical anti-bacterial sanitizers include 3,4-di- and 3,4',5-tri-bromosalicyl-anilides; 4,4'-dichloro-3-(trifluoromethyl) carbanilide; 3,4,4'-tri-chlorocarbanilide and mixtures of these materials. Use of these materials in soap bars is described in more detail in Reller et al., U.S.-A-3,256,200, issued June 14, 1966. If present, anti-bacterial agents and sanitizers generally comprise from 0.5% to 4% by weight of the finished soap bar.
- the soap bars of the present invention can optionally contain various emollients and skin conditioning agents.
- Materials of this type include, for example, sorbitan esters, such as those described in Seiden, U.S.-A-3,988,255, issued October 26, 1976, lanolin, cold cream, mineral oil, isopropyl myristate, and similar materials. If present, such emollients and skin conditioning agents generally comprise from 0.5% to 5% by weight of the soap bar.
- the soap bars can also contain any of the conventional perfumes, dyes and coloring agents generally utilized in commercially-marketed soap bars to improve the characteristics of such products. If present, such perfumes, dyes and coloring agents comprise from 0.2% to 5% by weight of the soap bar.
- the soap bars of the present invention are prepared in a conventional manner. Moisture- containing base soap of the type described above, having the requisite potassium soap and chloride anion content, is admixed with the electrolyte component defined herein, and other optional components, such as perfumes, in a crutcher or amalgamator, milled in conventional manner under conventional conditions and extruded into logs for stamping into soap bars. Conventional processes for preparing transparent soap bars can also be utilized.
- soap bars of the present invention their benefits in terms of crystal growth inhibition, and their utility in conventional hand and body washing operations are illustrated by the following, nonlimiting examples.
- Soap bars having the compositions given below, were prepared in the following manner. Dried sodium tallow/coconut (80/20) soap was mixed in an amalgamator with one, some, or all of the ingredients indicated in following table: triethanolamine (TEA), glycerine, potassium coconut soap, and potassium chloride. The mix was then milled to maximum transparency, which was usually obtained after 4 passes over a 3 roll mill. When potassium coconut soap was added to the soap bars, drying over hot mills prior to cold milling, was necessary.
- the soaps of the present invention may also be produced by mixing the sodium and potassium soaps in a crutcher, drying the mixture in a vacuum flash-dryer to the desired moisture level, and mixing in the remaining components in an amalgamator.
- the voltage across the bulb is adjusted until the light from the top of the cone section shines through a bar having a thickness of 2.75 cm and forms a barely perceptible circular image.
- the voltage across the bulb is used as a measure of transparency, which is independent of color; thus, a lower voltage indicates a more transparent bar.
- the lathering performance of the soap bars was tested in the manner described in BE-A-823,776.
- the panelists did not wear gloves when lathering the soap bars and the lather achieved was graded comparatively in arbitrary units. At least 4 panelists are required to duplicate the test, and the results are averaged over the number of panelists involved. Higher lather grades indicate better lathering performance.
- soap bars were made by the direct saponification of tallow/coconut (65/35) fatty acid with a 50/50 mixture of sodium hydroxide and potassium hydroxide, using sodium chloride or potassium chloride as an electrolyte, as indicated in the table below.
- the soap bars contained from about 15% to about 18% moisture. The transparency and the crystal growth properties of the soap bars formed were tested as described above.
- soap bars were made having a final composition of 62.4% of sodium tallow/coconut (80/20) soap, 10.4% of potassium coconut soap, 6.0% of glycerine, and the indicated percentages of the additional components specified in the table below.
- the soap bars contained from about 15% to about 18% moisture. These soap bars were then tested for transparency and crystal growth characteristics, using the procedures described above.
- compositions 15, 16, 17 and 19 had good transparency characteristics and did not grow crystals, while the soap compositions which utilized only the conventional sodium chloride and potassium chloride electrolytes manifested undesirable crystal growth.
- the soap bars were tested for lathering performance in both in tap water (hardness 4.862 m vol/I or 17 grains/gallon) and distilled water.
- compositions described in the table below, exemplify various embodiments of the soap bars of the present invention. These soap bar compositions may be manufactured in any of the conventional ways described in the present application and, specifically, may be manufactured using the method described in Example I, above.
Claims (1)
- Ein Seifenzusammensetzung in Riegelform, enthaltend 60% bis 95% Alkalimetall-, Ammonium-oder Alkanolammoniumsalze von C8-C24-Fettsäuren einschließlich wenigstens 1% Kaliumsalze von Cs-C24-Fettsäuren, 0,15% bis 0,7% Chloridanionen und 4% bis 25% Feuchtigkeit, dadurch gekennzeichnet, daß sie außerdem 0,2% bis 5% eines aus Kaliumcarbonat, Dikaliummonohydrogenorthophosphat, Kaliumcitrat, Natriumcitrat und Mischungen davon ausgewählten Elektrolyten enthält.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80200070T ATE4325T1 (de) | 1979-02-06 | 1980-01-25 | Riegelseife. |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7904197 | 1979-02-06 | ||
GB7904197 | 1979-02-06 | ||
GB7937809 | 1979-11-01 | ||
GB7937809 | 1979-11-01 | ||
GB8001001 | 1980-01-11 | ||
GB8001001 | 1980-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0014502A1 EP0014502A1 (de) | 1980-08-20 |
EP0014502B1 true EP0014502B1 (de) | 1983-07-27 |
Family
ID=27260661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80200070A Expired EP0014502B1 (de) | 1979-02-06 | 1980-01-25 | Riegelseife |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0014502B1 (de) |
CA (1) | CA1141255A (de) |
DE (1) | DE3064347D1 (de) |
MX (1) | MX151219A (de) |
PH (1) | PH15723A (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004000981A2 (en) * | 2002-06-24 | 2003-12-31 | Derichem (M) Sdn Bhd | Improved saturated soap noodles that may or may not contain preservatives or additives |
WO2004050817A1 (en) * | 2002-12-02 | 2004-06-17 | Derichem (M) Sdn Bhd | Foam plus soap noodle |
WO2005097964A1 (en) * | 2004-04-07 | 2005-10-20 | Derichem (M) Sdn Bhd | Improved saturated soap |
CN100447242C (zh) * | 2001-04-04 | 2008-12-31 | Dsmip资产有限公司 | 纯化的乳糖酶 |
EP3927804B1 (de) * | 2019-02-19 | 2022-06-22 | Unilever IP Holdings B.V. | Hartstangen mit hohem wassergehalt mit kombination aus typen und mengen von elektrolyten |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8911006D0 (en) * | 1989-05-12 | 1989-06-28 | Unilever Plc | Soap composition |
GB9016526D0 (en) * | 1990-07-27 | 1990-09-12 | Unilever Plc | Soap composition |
WO1996035772A1 (en) * | 1995-05-12 | 1996-11-14 | The Procter & Gamble Company | Soap-based laundry bars with improved firmness |
EP2314272A1 (de) * | 1995-06-22 | 2011-04-27 | Minnesota Mining And Manufacturing Company | Stabile alkoholisch-wässrige Zusammensetzung |
US6623744B2 (en) * | 1995-06-22 | 2003-09-23 | 3M Innovative Properties Company | Stable hydroalcoholic compositions |
CA2224798A1 (en) | 1995-06-22 | 1997-01-09 | Matthew T. Scholz | Stable hydroalcoholic compositions |
US6019997A (en) * | 1997-01-09 | 2000-02-01 | Minnesota Mining And Manufacturing | Hydroalcoholic compositions for transdermal penetration of pharmaceutical agents |
US5908619A (en) * | 1997-01-09 | 1999-06-01 | Minnesota Mining And Manufacturing Company | Hydroalcoholic compositions thickened using surfactant/polymer complexes |
US6582711B1 (en) | 1997-01-09 | 2003-06-24 | 3M Innovative Properties Company | Hydroalcoholic compositions thickened using polymers |
US6007831A (en) * | 1998-01-08 | 1999-12-28 | Lever Brothers Company | Soap bars having quick kill capacity and methods of enhancing such capacity |
US6143704A (en) * | 1998-10-13 | 2000-11-07 | Lever Brothers Company, Division Of Conopco, Inc. | Soap bars with little or no synthetic surfactant comprising organic salts |
JP7414835B2 (ja) | 2019-02-19 | 2024-01-16 | ユニリーバー・アイピー・ホールディングス・ベスローテン・ヴェンノーツハップ | 高い含水量を有する押出石鹸バー |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2686761A (en) * | 1950-06-02 | 1954-08-17 | Procter & Gamble | Detergent product having milled soap properties |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3557006A (en) * | 1967-11-24 | 1971-01-19 | Peter J Ferrara | Composite toilet soap bar having an acid ph in use |
US3576749A (en) * | 1969-02-06 | 1971-04-27 | Procter & Gamble | Soap toilet bars having improved smear characteristics |
US3988255A (en) * | 1975-03-05 | 1976-10-26 | The Procter & Gamble Company | Toilet bars |
-
1980
- 1980-01-25 DE DE8080200070T patent/DE3064347D1/de not_active Expired
- 1980-01-25 EP EP80200070A patent/EP0014502B1/de not_active Expired
- 1980-02-04 CA CA000345019A patent/CA1141255A/en not_active Expired
- 1980-02-04 PH PH23588A patent/PH15723A/en unknown
- 1980-02-06 MX MX18109680A patent/MX151219A/es unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2686761A (en) * | 1950-06-02 | 1954-08-17 | Procter & Gamble | Detergent product having milled soap properties |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100447242C (zh) * | 2001-04-04 | 2008-12-31 | Dsmip资产有限公司 | 纯化的乳糖酶 |
WO2004000981A2 (en) * | 2002-06-24 | 2003-12-31 | Derichem (M) Sdn Bhd | Improved saturated soap noodles that may or may not contain preservatives or additives |
WO2004000981A3 (en) * | 2002-06-24 | 2004-03-25 | Derichem M Sdn Bhd | Improved saturated soap noodles that may or may not contain preservatives or additives |
WO2004050817A1 (en) * | 2002-12-02 | 2004-06-17 | Derichem (M) Sdn Bhd | Foam plus soap noodle |
WO2005097964A1 (en) * | 2004-04-07 | 2005-10-20 | Derichem (M) Sdn Bhd | Improved saturated soap |
EP3927804B1 (de) * | 2019-02-19 | 2022-06-22 | Unilever IP Holdings B.V. | Hartstangen mit hohem wassergehalt mit kombination aus typen und mengen von elektrolyten |
Also Published As
Publication number | Publication date |
---|---|
MX151219A (es) | 1984-10-11 |
DE3064347D1 (en) | 1983-09-01 |
CA1141255A (en) | 1983-02-15 |
PH15723A (en) | 1983-03-18 |
EP0014502A1 (de) | 1980-08-20 |
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