WO1995005450A1 - Soap product - Google Patents
Soap product Download PDFInfo
- Publication number
- WO1995005450A1 WO1995005450A1 PCT/GB1994/001745 GB9401745W WO9505450A1 WO 1995005450 A1 WO1995005450 A1 WO 1995005450A1 GB 9401745 W GB9401745 W GB 9401745W WO 9505450 A1 WO9505450 A1 WO 9505450A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soap
- microwaves
- application
- expanded
- size
- Prior art date
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
- 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
- C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
- C11D13/14—Shaping
-
- 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
- This invention relates to the implementation of an expansion, or aeration, process in the manufacture of both body and detergent soap.
- Conventional modern soap tablets are generally made by firstly manufacturing a soap base which is dried to the required moisture level, and then mixing with pieces of the soap base the desired additives and triglycerides according to the properties of the product to be made, i.e. perfumes, colorants, moisturisers, super-fatting agents, preservatives, oils, germicides and detergents, tallow etc. After the mixing operation in which the additives are coarsely distributed over the pieces of soap base, the mixture of the soap base and the additives is rendered homogenous. Finally the homogeneous soap is either moulded or extruded to form a bar which is cut into billets from which soap tablets of the desired shape are stamped.
- the soap base used may be made by any conventional soap- making process, for example by ⁇ aponification of fats or by direct neutralisation of fatty acids by sodium or potassium hydroxides.
- the soap base is a sodium or potassium soap, or a mixture thereof, but if desired other alkali metal, alkaline earth metal, ammonium or amine soaps may be used as well as soap of the triglyceride family.
- the soap base comprises an amount of water that, after drying, will not generally exceed 20% by weight.
- the soap base contains no additives but, if desired, additives necessary for the production of soap pieces, for example, preservatives, may be incorporated into the soap base before its formation into bars. Soap tablets may be opaque, translucent or transparent, depending upon their method of manufacture.
- a transparent soap may be made, for example, by cooling a suitable soap base solution, such as a fatty acid/alkali soap base dissolved in alcohol or a fatty acid/alkali reactant mixture to which has been added alcohol, sugar solution and glycerol.
- a suitable soap base solution such as a fatty acid/alkali soap base dissolved in alcohol or a fatty acid/alkali reactant mixture to which has been added alcohol, sugar solution and glycerol.
- Translucent soaps may be made, for example, by mechanically working a soap base at controlled temperatures.
- Soap tablets may also be made using alternative surfactants, such as synthetic detergents (so-called “soaples ⁇ soaps”) , such alternative surfactants being used in addition to or in replacement of a conventional fatty acid/alkali soap base.
- alternative surfactants such as synthetic detergents (so-called "soaples ⁇ soaps”) , such alternative surfactants being used in addition to or in replacement of a conventional fatty acid/alkali soap base.
- Soap tablets may be formulated for personal washing or alternatively for other cleaning or detergent purposes.
- Aerated or floating soaps are described in, for example, UK 539718, US 2048286 and UK 2118058A where air is introduced during vigorous mechanical working of a soap product which is subsequently shaped. According to the present invention there is provided a process for expanding soap pieces comprising applying microwaves thereto.
- a soap piece may be made generally as described above.
- the soap may thus comprise a soap base in the form of any suitable surfactant or combination of surfactants including conventional fatty acid/alkali soap bases obtainable by the ⁇ aponification of fats or by neutralisation of fatty acids and synthetic detergent soap bases.
- the soap base may be combined with desired additives according to the intended use to form a homogenous soap, which may be optionally shaped by, for example, extrusion, moulding or stamping.
- aerated soap tablets may be produced where each tablet lasts one wash.
- Figure 1 shows a cross-sectional view through a soap piece after a small burst of microwaves have been applied.
- Figure 2 shows in perspective a piece of soap having the cross-sectional shape shown in Figure 1.
- Figure 3a shows a soap piece prior to application of the method of the invention.
- Figure 3b shows the same soap as in Figure 3a, after an application of microwaves.
- Figure 4a shows a cross-sectional view of a sponge implanted with soap pieces.
- Figure 4b shows the same cross-sectional view of a sponge as Figure 4a after an application of microwaves.
- Figure 5a shows a cross-sectional view of a two-part soap mould containing a soap piece.
- Figure 5b shows the same cross-sectional view of a mould as Figure 5a after an application of microwaves.
- FIG. 1 the cross-sectional shape of an aerated honeycombed soap 1, shows an expanded, aerated, honeycombed internal structure 2 made up of flakes of soap chained together.
- the soap's internal structure 2 is surrounded by a skin 3 of the same substance and of a varying thickness for example between 0.5mm to 0.005mm.
- This expanded, aerated or honeycombed soap may be arranged to allow each tablet to serve one hand/face wash or one body wash in which case the dosage is dependent upon the size of the soap tablet.
- the starting soap piece of Figure 3a may have a minimum dimension of 2.5 mm and a maximum dimension of 50 mm, to which microwaves may be applied for a period of 20-40 seconds (2450 MHz, intermittently applied) at a power of 500 .
- the soap tablet before treatment of microwaves, may have between 5-20% water content or higher, heat is produced by normal microwave action on the moisture within the soap when microwaves penetrate it.
- the power or frequency of microwaves applied can be increased e.g. by increasing the intensity or burst frequency, allowing the exposure time to be decreased and vice versa.
- the soap is caused to inflate and with this, form a honeycomb/aerate structure.
- the size expansion ratio can be further increased if desired, by the application of water (in the form of a fine spray) which rests on the surface of the expanded soap tablet.
- Such a soap base may have the composition - aside from any non-soap particulate, lying within the ranges:
- the soap base has a yield stress at 40 degrees centigrade of at least 1.8 x 10" 5 Nm" 2 .
- the final soap tablet with its resultant honeycombed state dissolves in contact with water (at a faster rate than conventional soap, since much of the water from its original state has now evaporated) into a uniform froth with excellent lathering qualities as the chains of soap flakes start to break up.
- the common occurrence of cracked soap where undue cracking and deterioration of soap bars during handling is caused by age and temperature variation within a domestic situation can now be avoided.
- a single use size expanded tablet presents major hygiene benefits, since the soap tablet is never shared, with possible cross-infection avoided. Therefore the expanded soap presents itself as a new way of washing with significant improvements for the environment when adopted in areas such as hotel/guest soap, where only what is needed is used - rather than what is not used being disposed of.
- FIG 4a the cross-sectional shape of a sponge product 5 shows sponge 6, which may be a man-made sponge, impregnated with soap pieces 7.
- Figure 4b shows the same cross-sectional shaped sponge 6 impregnated with soap pieces after the application of microwaves for a period of 20 - 40 seconds at a power of 500W (2450 MHz, intermittently applied).
- the now aerated soap tablets 8 have increased in size by a ratio of roughly 1:7 and have therefore spread across the sponge area to form a semi-rigid sponge block 9.
- the block 9 is then cooled with the assistance of cold air.
- FIG. 5a a cross-section of a two-part mould 10,11 is shown. Inside is placed a soap piece 12 of, for example, 10- 20% of the size of the mould.
- Figure 5b shows the same mould as illustrated in Figure 5a, but after the application of microwaves for a period of 20-40 seconds at a power of 500W (2450 MHz, intermittently applied).
- the now aerated soap piece 13 has increased in size by aeration to fill the mould.
- a cooling step then follows after which the soap tablet is released.
- This moulding process has advantages where exact dosage of soap are required i.e. for personal and medical care. and other household or industrial cleaning purposes, allowing a measured dose to be repeated precisely.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69404152T DE69404152T2 (en) | 1993-08-13 | 1994-08-10 | SOAP PRODUCT |
EP94922322A EP0713526B1 (en) | 1993-08-13 | 1994-08-10 | Soap product |
JP7506803A JPH09501464A (en) | 1993-08-13 | 1994-08-10 | Soap products |
AU73482/94A AU7348294A (en) | 1993-08-13 | 1994-08-10 | Soap product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939316900A GB9316900D0 (en) | 1993-08-13 | 1993-08-13 | Soap product |
GB9316900.1 | 1993-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995005450A1 true WO1995005450A1 (en) | 1995-02-23 |
Family
ID=10740475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1994/001745 WO1995005450A1 (en) | 1993-08-13 | 1994-08-10 | Soap product |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0713526B1 (en) |
JP (1) | JPH09501464A (en) |
AU (1) | AU7348294A (en) |
DE (1) | DE69404152T2 (en) |
GB (1) | GB9316900D0 (en) |
IL (1) | IL110636A (en) |
WO (1) | WO1995005450A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10241597A1 (en) * | 2002-09-07 | 2004-03-18 | Scs Skin Care Systems Gmbh | Soap preparation with bubbles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7612031B2 (en) | 2005-12-15 | 2009-11-03 | Kimberly-Clark Worldwide, Inc. | Health-and-hygiene appliance comprising a dispersible component and a releasable component disposed adjacent or proximate to said dispersible component; and processes for making said appliance |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4118333A (en) * | 1975-10-20 | 1978-10-03 | Colgate-Palmolive Company | Manufacture of particulate detergents |
GB2203752A (en) * | 1987-04-21 | 1988-10-26 | Sarah Fox | Manufacture of floating soap |
US4885108A (en) * | 1986-08-12 | 1989-12-05 | Colgate-Palmolive Company | Method of shaping of soap bar |
JPH02132198A (en) * | 1988-10-17 | 1990-05-21 | Kimie Miyazaki | Preparation of patterned solid soap |
BE1004876A5 (en) * | 1991-05-27 | 1993-02-16 | Serstevens Albert T | Improvement in the production of washing powders with microwaves |
-
1993
- 1993-08-13 GB GB939316900A patent/GB9316900D0/en active Pending
-
1994
- 1994-08-10 DE DE69404152T patent/DE69404152T2/en not_active Expired - Fee Related
- 1994-08-10 JP JP7506803A patent/JPH09501464A/en active Pending
- 1994-08-10 WO PCT/GB1994/001745 patent/WO1995005450A1/en active IP Right Grant
- 1994-08-10 AU AU73482/94A patent/AU7348294A/en not_active Abandoned
- 1994-08-10 EP EP94922322A patent/EP0713526B1/en not_active Expired - Lifetime
- 1994-08-11 IL IL11063694A patent/IL110636A/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4118333A (en) * | 1975-10-20 | 1978-10-03 | Colgate-Palmolive Company | Manufacture of particulate detergents |
US4885108A (en) * | 1986-08-12 | 1989-12-05 | Colgate-Palmolive Company | Method of shaping of soap bar |
GB2203752A (en) * | 1987-04-21 | 1988-10-26 | Sarah Fox | Manufacture of floating soap |
JPH02132198A (en) * | 1988-10-17 | 1990-05-21 | Kimie Miyazaki | Preparation of patterned solid soap |
BE1004876A5 (en) * | 1991-05-27 | 1993-02-16 | Serstevens Albert T | Improvement in the production of washing powders with microwaves |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 9026, Derwent World Patents Index; Class D21, AN 90-198272 * |
See also references of EP0713526A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10241597A1 (en) * | 2002-09-07 | 2004-03-18 | Scs Skin Care Systems Gmbh | Soap preparation with bubbles |
DE10241597B4 (en) * | 2002-09-07 | 2004-09-16 | Scs Skin Care Systems Gmbh | Soap preparation with bubbles |
Also Published As
Publication number | Publication date |
---|---|
GB9316900D0 (en) | 1993-09-29 |
IL110636A0 (en) | 1994-11-11 |
IL110636A (en) | 1999-04-11 |
EP0713526B1 (en) | 1997-07-09 |
DE69404152D1 (en) | 1997-08-14 |
EP0713526A1 (en) | 1996-05-29 |
DE69404152T2 (en) | 1998-01-08 |
JPH09501464A (en) | 1997-02-10 |
AU7348294A (en) | 1995-03-14 |
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