EP0947579B1 - Verfahren zur herstellung von transparenten festen seifen sowie von transparentem seifenvorrat - Google Patents
Verfahren zur herstellung von transparenten festen seifen sowie von transparentem seifenvorrat Download PDFInfo
- Publication number
- EP0947579B1 EP0947579B1 EP97939200A EP97939200A EP0947579B1 EP 0947579 B1 EP0947579 B1 EP 0947579B1 EP 97939200 A EP97939200 A EP 97939200A EP 97939200 A EP97939200 A EP 97939200A EP 0947579 B1 EP0947579 B1 EP 0947579B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- soap
- transparent
- fatty acid
- weight
- alkali
- 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 - Lifetime
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
- C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
-
- 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
- C11D9/002—Non alkali-metal 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
- C11D9/02—Compositions of detergents based essentially on soap on alkali or ammonium soaps
Definitions
- the present invention relates generally to a method of making a transparent solid soap and, more particularly, to a transparent solid soap which can be easily produced without requiring a fine control of water content and a maturing period till reduction in weight is settled and, besides, exhibits high stabilities of transparency and weight with passage of time.
- a transparent soap is visually beautiful and excellent in terms of safety and detergency, and is therefore widely used as a detergent.
- the transparent soap is mixed with a moisture-absorbing component as an indispensable component such as polysaccharide, and the like in order to create the transparency and mixed, in addition, with a volatile component such as ethanol, and the like.
- the transparent solid soap declines in terms of transparency when the moisture-absorbing component absorbs the moisture content, and it is therefore required that fine control of the water content be precisely made by a hot roll while monitoring the transparency and the water content. Further, when mixed with a volatile component, the volatile component volatilizes, resulting in a decrease in weight. Hence, a maturing period as long as several weeks to several months is needed till the decrease in weight is settled. Namely, it is quite troublesome to execute the control so as to exhibit high transparency and high stabilities of transparency and of weight with passage of time in terms of manufacturing the transparent solid soap.
- EP-A-0 335 026 discloses a transparent soap bar which requires the components to fit within three critical ratios, and which comprises a mixture of alkanolammonium and alkali metal C 12 -C 22 atom fatty acid salts, and a solvent system.
- the present inventors have obtained a soap that remains transparent even when polysaccharide and alcohol are not present which involves including sodium hydroxide and an organic amine in a predetermined ratio as the alkali for saponification and specifying the quantity of alkali as a predetermined saponifying equivalent of the fatty acid, and have found that this transparent soap is easy to produce and exhibits good stability.
- a transparent solid soap by saponifying fatty acid or animal/vegetable oil with alkali in the absence of alcohol, which comprises mainly a salt of fatty acid, wherein
- the organic amine is triethanolamine.
- transparent implies a state of being substantially clear with slight turbidity as well as implying that transmissivity of visible light is approximately 25% or above. Moreover, the term “transparent” is not limited to achromatic transparency.
- spontaneousifying equivalent means the minimum alkali quantity needed for transforming all of the fatty acid or animal/vegetable oil into a salt of the tatty acid, i.e., into a soap, and the quantity thereof should be regarded as 1 saponifying equivalent.
- the transparent solid soap obtained by the method of the present invention does not contain a polysaccharide such as sorbitol or alcohol such as ethanol as indispensable components. Accordingly, the soap rarely becomes turbid as a result of moisture absorption or crystal deposition, and the like, which happen with a soap comprising polysaccharide, and is excellent in terms of stability of transparency over the passage of time. Moreover, the transparent solid soap prepared according to the present invention is easy to produce for the reason that the labor for controlling moisture content is reduced because of the absence of moisture-absorbing components such as polysaccharide, and that a maturing period until the content of a volatile component such as alcohol has reached equilibrium is not required.
- a polysaccharide such as sorbitol or alcohol such as ethanol
- the organic amine component of the soap produced by the method of the invention may for example be diethanolamine, triethanolamine, triethylamine, trimethylamine or diethylamine. Triethanolamine is particularly preferable. A single organic amine may be used, or two or more organic amines may be employed in combination.
- the alkali quantity corresponding to 1 saponifying equivalent for example, can be obtained as the alkali quantity necessary for neutralizing the acid derived from the fatty acid, calculating the acid quantity from the weight and the molecular weight of the fatty acid.
- the fatty acid or the animal/vegetable oil used for the transparent solid soap according to the present invention may be those generally employed as fundamental sources.
- the fatty acid there can be specifically exemplified stearic acid, lauric acid, myristic acid, palmitic acid and behenic acid and the like. Synthetic or natural fatty acids may be used.
- the animal/vegetable oil specifically, beef tallow, coconut oil and hydrogenated coconut oil, and the like, which is previously hydrolyzed into the fatty acid, may be used or may be used intact.
- the quantity of the fatty acid used as a raw material for the transparent solid soap according to the present invention is preferably from 30% to 60% by weight, more preferably from 35% to 57% by weight and, much more preferably, from 37% to 55% by weight.
- the quantity of triethanolamine used is preferably from 30% to 50% by weight, more preferably from 31% to 47% by weight, and even more preferably from 32% to 45% by weight.
- the quantity of sodium hydroxide used is preferably from 5% to 10% by weight, more preferably from 5.5% to 9.5% by weight, and much more preferably from 6% to 9% by weight.
- the transparent solid soap according to the present invention if in such a range as not to spoil the effects of the present invention, there can be optional components generally used for the soap in addition to the indispensable components described above.
- optional components there may be exemplified, e.g., antioxidant such as BHT, chelating agent such as EDTA and hydroxyethane diphosphonic acid, antiseptic agent such as methylparaben, coloring matters, pigments, fine particles, mica titanes with interference colors, pearl agent such as mica titanes, perfume, and surface active agent such as POE added sodium alkylsulfate.
- the transparency might be reduced to some extent by the inclusion of such optional components, and depending on the quantity added, the soap can become highly lustrous and conspicuous in colour.
- the transparent solid soap according to the present invention can be manufactured by an ordinary transparent solid soap manufacturing method.
- the transparent solid soap can be manufactured by a frame kneading method of saponifying the fatty acid or the animal/vegetable oil with alkali, melting a mixture by heating that are mixed with other components as the necessity arises, pouring the mixture into a mold and solidifying it by cooling.
- the transparent solid soap can be obtained by carrying out pellet processing such as pressurization-molding, i.e., by a mechanical kneading method. Further, if pressurization-molded by use of the pellet into which the transparent soap material of the present invention is molded and the pellet manufactured from an ordinary opaque soap material, a transparent solid soap having a stripe pattern is to be obtained. Moreover, a flower-shaped molding is made of an opaque soap and embedded in and wrapped with the transparent soap material of the present invention by the frame kneading method, thereby making it possible to obtain a transparent solid soap with the molding embedded in and wrapped therewith. Further, if a printed thin film composed of carboxymethylcellulose is embedded in and wrapped therewith, it is feasible to obtain the transparent solid soap with a picture drawn inside.
- pellet processing such as pressurization-molding, i.e., by a mechanical kneading method.
- a transparent solid soap having a stripe pattern is to be obtained.
- the transparent soap material is manufactured according to the formulation of Table 1 which follows. Concretely, the components of Table 1 are scale-put into a heating kneader, kneaded for 2 hours at 80°C, and, through a pelletizing operation by a hot roll and a pelleter, the transparent soap material is obtained as a pellet. When the moisture content of this pellet is obtained by Karl Fischer moisture content titration , the moisture content of the pellet comes to the result shown in Table 1. When the component composition of the pellet is calculated from this moisture content, the component composition as shown in Table 2 is obtained. Note that the quantity of alkali with respect to fatty acid is as shown in Table 3.
- Example 2 Example 3 Coconut oil fatty acid 40 40 40 Beef tallow fatty acid 160 160 160 Triethanolamine 140 145 160 Sodium hydroxide 34 29 26 Water 86 81 79 State of pellet Transp a-rent solid-state Transp a-rent solid-state Transp a-rent solid-state Pellet moisture content (weight %) 5.4 6.2 4.8 Component Example 4
- Example 5 Example 6
- Table 2 Component Example 1 Example 2
- Example 3 Coconut oil fatty acid 10.2 10.0 9.7 Beef tallow fatty acid 40.9 40.1 39.5 Triethanolamine 35.8 36.4 39.5 Sodium hydroxide 8.7 7.3 6.4 Water
- the transparent solid soap is obtained by pressure-forming the pellet-like transparent soap material in the Examples 1 - 6.
- the change in weight is less than 5% even when preserved at 40°C for one month, and, further, neither variation in the transparency nor crystal deposition can be seen.
- the transparent soap material is manufactured according to the scaling prescription in Table 6 which follows. Concretely, the prescription components in Table 6 are scale-put into a heating kneader, kneaded for 2 hours at 80°C, and, through the pelletizing operation by a hot roll and a pelleter, the transparent soap material is obtained as a pellet. Note that according to the prescription in Table 6, the alkali quantity relative to the fatty acid is 2.45 saponifying equivalents.
- the transparent soap material is manufactured according to the scaling prescription in Table 7 which follows.
- the prescription components in Table 6 are scale-put into a heating kneader, kneaded for 2 hours at 80°C, and, through the pelletizing operation by a hot roll and the pelleter, the transparent soap material is obtained as a pellet.
- the alkali quantity relative to the fatty acid is 2.45 saponifying equivalents.
- the pellet in the example 13 is melted by heating, poured into a silicone rubber mold and solidified, thus manufacturing a molding of a flower of rose.
- This molding is placed in a frame, and the transparent soap material molten by heating in the example 14 is softly poured and solidified by cooling, thus obtaining a transparent solid soap including a flower.
- This transparent solid soap exhibited neither a change in the transparency of the transparent portion nor a change in weight even when preserved at 40°C for one month.
- the transparent solid soap according to the present invention can be easily produced without requiring fine control of the moisture content or a maturing period till reduction in weight has been settled, and, besides, exhibit high stabilities of transparency and of weight with the passage of time.
Landscapes
- 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 (2)
- Verfahren zur Herstellung einer transparenten festen Seife durch Verseifung von Fettsäuren oder tierischem/pflanzlichem Öl, welches im Wesentlichen Fettsäuresalz umfasst, mit Alkali in Abwesenheit von Alkohol, wobei(1) das Alkali Natriumhydroxid und organisches Amin ist und das molare Verhältnis des Natriumhydroxids zum organischen Amin 1:0,8 bis 1:1,8 beträgt und(2) die Menge des Alkali 2,2 bis 2,7 Verseifungsäquivalente der Fettsäure oder des tierischen/pflanzlichen Öls beträgt,so dass ein transparentes Seifenmaterial erhalten wird und das Material in eine Form gegossen wird und durch Kühlen verfestigt wird.
- Verfahren gemäß Anspruch 1, bei dem das organische Amin Triethanolamin ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT97939200T ATE328999T1 (de) | 1997-09-05 | 1997-09-05 | Verfahren zur herstellung von transparenten festen seifen sowie von transparentem seifenvorrat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1997/003137 WO1999013041A1 (fr) | 1996-05-22 | 1997-09-05 | Savon solide transparent et pate de savon transparente |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0947579A1 EP0947579A1 (de) | 1999-10-06 |
EP0947579A4 EP0947579A4 (de) | 2001-03-28 |
EP0947579B1 true EP0947579B1 (de) | 2006-06-07 |
Family
ID=14181076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97939200A Expired - Lifetime EP0947579B1 (de) | 1997-09-05 | 1997-09-05 | Verfahren zur herstellung von transparenten festen seifen sowie von transparentem seifenvorrat |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0947579B1 (de) |
AU (1) | AU720810B2 (de) |
CA (1) | CA2270381A1 (de) |
DE (1) | DE69736071T2 (de) |
WO (1) | WO1999013041A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1847437A (en) * | 1929-10-24 | 1932-03-01 | Moscowitz Abraham | Detergent |
US4297230A (en) * | 1979-02-06 | 1981-10-27 | The Procter & Gamble Company | Non-crystallizing transparent soap bars |
JPS60188500A (ja) * | 1984-03-08 | 1985-09-25 | 三和化学工業株式会社 | 成型透明石鹸の製造方法 |
US4758370A (en) * | 1987-04-30 | 1988-07-19 | Neutrogena Corp. | Compositions and processes for the continuous production of transparent soap |
GB8807754D0 (en) * | 1988-03-31 | 1988-05-05 | Unilever Plc | Transparent soap bars |
ZA882340B (en) * | 1988-03-31 | 1989-12-27 | Unilever Plc | Transparent soap bar |
JP2728791B2 (ja) * | 1990-06-21 | 1998-03-18 | 鐘紡株式会社 | 透明石鹸組成物 |
US5728663A (en) * | 1996-07-02 | 1998-03-17 | Johnson & Johnson Consumer Products, Inc. | Clear, colorless soap bar with superior mildness, lathering and discolorization resistence |
-
1997
- 1997-09-05 EP EP97939200A patent/EP0947579B1/de not_active Expired - Lifetime
- 1997-09-05 DE DE69736071T patent/DE69736071T2/de not_active Expired - Fee Related
- 1997-09-05 WO PCT/JP1997/003137 patent/WO1999013041A1/ja active IP Right Grant
- 1997-09-05 AU AU41358/97A patent/AU720810B2/en not_active Ceased
- 1997-09-05 CA CA002270381A patent/CA2270381A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU720810B2 (en) | 2000-06-15 |
EP0947579A1 (de) | 1999-10-06 |
DE69736071D1 (de) | 2006-07-20 |
EP0947579A4 (de) | 2001-03-28 |
CA2270381A1 (en) | 1999-03-18 |
DE69736071T2 (de) | 2006-12-21 |
WO1999013041A1 (fr) | 1999-03-18 |
AU4135897A (en) | 1999-03-29 |
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