EP0418049A2 - Pain de savon - Google Patents

Pain de savon Download PDF

Info

Publication number
EP0418049A2
EP0418049A2 EP90309971A EP90309971A EP0418049A2 EP 0418049 A2 EP0418049 A2 EP 0418049A2 EP 90309971 A EP90309971 A EP 90309971A EP 90309971 A EP90309971 A EP 90309971A EP 0418049 A2 EP0418049 A2 EP 0418049A2
Authority
EP
European Patent Office
Prior art keywords
cake
soap
liquid crystal
predetermined temperature
crystal material
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.)
Withdrawn
Application number
EP90309971A
Other languages
German (de)
English (en)
Other versions
EP0418049A3 (en
Inventor
Colin David Rickson
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.)
MAGNAPOWER GROUP Ltd
Original Assignee
MAGNAPOWER GROUP Ltd
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 MAGNAPOWER GROUP Ltd filed Critical MAGNAPOWER GROUP Ltd
Publication of EP0418049A2 publication Critical patent/EP0418049A2/fr
Publication of EP0418049A3 publication Critical patent/EP0418049A3/en
Withdrawn legal-status Critical Current

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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
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/048—Soap or detergent bars or cakes with an inner core consisting of insoluble material
    • 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

Definitions

  • This invention relates to a cake of soap having display means embedded therein.
  • the invention is intended to relate to cakes of soap for the use of babies or children.
  • An aim of the present invention is to provide a cake of soap having a novel form of display means adhered to, or embedded in, the soap which changes its display when heated, e.g. by being immersed in water, in excess of a predetermined temperature.
  • a cake of soap having display means adhered to, or embedded in, the cake is characterised in that the display means includes at least one deposit of temperature responsive liquid crystal material which undergoes a reversible visible colour change when passing through a predetermined temperature of from 25°C to 45°C, the said deposit(s) being surrounded by at least substantially water-impermeable covering means.
  • the or each deposit of liquid crystal material is intended to undergo a reversible visible colour change when the cake of soap is either dipped into, or removed from, bath water at typical bath water temperature.
  • the temperature responsive liquid crystal material is ther­mochromic, displaying so-called "colour play” (i.e. a reversible change of colour through a range of colours) over a predetermined temperature range and appearing opaque, e.g. black, at temperatures above and below the predetermined temperature range.
  • colour play i.e. a reversible change of colour through a range of colours
  • the lowest temperature that the liquid crystal material displays colour play will be the said predetermined temperature.
  • the colour play temperature range may typi­cally be from 32°C to 45°C, preferably from 35°C to 42°C (i.e.
  • the liquid crystal material may be of the type which is normally opaque, e.g. green when backed with a black backing, at temperatures immediately below said predetermined temperature but which clears at said predetermined temperature (i.e. the "clearing point") and remains transparent at temperatures immediately in excess of the predetermined temperature.
  • the said predetermined temperature is chosen to be above normal bathroom air temperature and below the water temperature used for a normal bath and typically will be in the range from 28°C to 38°C, for example 33°C.
  • the display means may serve to display the water temperature of the bath, e.g. by thermochromic liquid crystal material displaying a different colour in depen­dence on the water temperature.
  • the display means is intended to display a picture, e.g. of a cartoon character or the like, and/or a product name on colour change of the temperature responsive liquid crystal material.
  • the liquid crystal material is of the type which clears when its temperature passes through the clearing point, the picture and/or product name is arranged to become visible through the transparent liquid crystal material when the latter is at a temperature above the clearing point (i.e. when the cake of soap is immersed in bath water at a temperature above the clearing point) and to become invisible when the liquid crystal material becomes opaque (i.e.
  • liquid crystal material is thermochromic, displaying colour play over a predetermined colour range, the or each deposit of temperature responsive liquid crystal material is conveniently arranged in a pattern representative of the picture and/or product name to be displayed.
  • the display means is conveniently adhered to the cake of soap with a suitable adhesive, e.g. an insoluble medi­cally inert adhesive, so that a display surface is visible when the cake is unused.
  • a suitable adhesive e.g. an insoluble medi­cally inert adhesive
  • the display means may be completely embedded in the cake of soap so that a display surface becomes revealed only after some of the soap material has been dissolved from the cake.
  • the display means may conveniently comprise a thin, e.g. 500 ⁇ m, laminated display device having upper and lower surfaces provided by at least substantially water impermeable material, typically, for example, outer sheets of plastics material.
  • liquid crystal material is printed onto a carrier sheet, e.g. an inner surface of one of said water impermeable outer sheets.
  • the display means may include printed display matter visible whether or not the cake of soap is out of, or immersed in, bath water in excess of said predetermined temperature.
  • Figures 1 and 2 show a cake of soap generally desig­nated by the reference numeral 1, having a rectangular recess in its top surface in which is embedded a rectan­gular laminated display device 2.
  • the display device 2 comprises an upper transparent sheet 4 of water impermeable plastics material laminated to a lower sheet 5 of water impermeable plastics material.
  • the inner surface of the sheet 4 has printed, e.g. screen printed, thereon at least one deposit of temperature responsive thermochromic liquid crystal material in the form of a design 6 and, completely underlying the design 6 when viewed from above, a black backing layer (not shown).
  • the printing "ink” typically comprises microencapsulated droplets of the liquid crystal material.
  • the sheets 4 and 5 are typically gloss or matt surfaced PVC which is surface modified to enable specially developed ink systems to key directly onto the modified surface during printing. Typically the sheets 4 and 5 have a thickness of 240 ⁇ m each and the display device has a thickness of about 500 ⁇ m.
  • the temperature responsive liquid crystal material is chosen to have a colour play over a temperature range of from 32°C to 45°C, and preferably from 35°C to 42°C. Outside this temperature range the liquid crystal material will normally have a black appearance.
  • the design 6 is only visible from above when the overlying liquid crystal material displays colour play (i.e. when at a temperature within the colour play temperature range).
  • Other printed matter may be arranged so as to be visible at all times.
  • the liquid crystal material In use, when the cake 1 of soap is immersed in bath water of normal bath water temperature, e.g. 39°C, which falls within the colour play temperature range, the liquid crystal material will display a colour characteristic of that bath water temperature and the design 6 will be visible from above. On taking the cake of soap out of the bath water, the temperature of the liquid crystal material quickly falls below the colour play temperature range so that the liquid crystal material becomes black and merges with the black backing so that the outline of the design 6 cannot be seen.
  • the cake 1 of soap is particularly appeal­ing to children and encourages them to use soap when taking a bath. As with conventional cakes of soap having conven­tional display cards embedded therein, the display device 2 will remain adhered to, or embedded in, the cake 1 of soap as the cake becomes smaller in size during use of the soap.
  • the liquid crystal material By sandwiching the liquid crystal material between at least substantially water impermeable sheets 4 and 5, the liquid crystal material is protected from being contacted by bath water when the cake of soap is immersed therein.
  • the adhesive(s) for laminating the sheets 4 and 5 together and adhering the display device 2 to the cake 1 should not of course be water soluble.
  • the invention may be modified in many ways. For example more than one region or deposit of liquid crystal material may be provided in the display means.
  • the liquid crystal material design and black backing layer may be printed on the lower sheet 5 instead of the upper sheet 4.
  • the lower sheet 5 may be dispensed with if, for example, a water resistant backing ink, e.g. black backing ink, is employed to provide a complete backing for the display device. This enables a thinner, e.g. 250 ⁇ m, display device to be employed.
  • the temperature responsive liquid crystal material being thermochromic and displaying colour play over a colour play temperature range
  • the liquid crystal material could be of the type which appears opaque, e.g.
  • a specific design of liquid crystal material could be printed so as to overlie a similar design in a preferably dark, e.g. black, backing ink.
  • a green surrounding ink, simiar in colour to the opaque liquid crystal material could be printed around, so as to blend in with, the design.
  • the dark backing ink would be visible against the surrounding green ink.
  • the surrounding ink could be matched to the colour of the backing ink so that the design would "disap­pear" on clearing of the liquid crystal material.
  • the clearing point of the liquid crystal material is chosen to be above the typical ambient air temperature in a bathroom when a person takes a bath but below the minimum bath water temperature that a person would normally expect to experience.
  • the clearing point would normally be between 25°C to 45°C and preferably between 28°C to 38°C.
  • a typical clearing point temperature would be 33°C.
  • the display device may be a thermometer displaying bath water tempera­ture when the soap is immersed in the bath water.

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)
  • Toys (AREA)
  • Detergent Compositions (AREA)
EP19900309971 1989-09-12 1990-09-12 Cake of soap Withdrawn EP0418049A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8920579 1989-09-12
GB8920579A GB2235931B (en) 1989-09-12 1989-09-12 Cake of soap

Publications (2)

Publication Number Publication Date
EP0418049A2 true EP0418049A2 (fr) 1991-03-20
EP0418049A3 EP0418049A3 (en) 1991-09-11

Family

ID=10662923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900309971 Withdrawn EP0418049A3 (en) 1989-09-12 1990-09-12 Cake of soap

Country Status (2)

Country Link
EP (1) EP0418049A3 (fr)
GB (1) GB2235931B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002729A1 (fr) * 2000-07-05 2002-01-10 Ovation Worldwide Limited Article de savon et procede de fabrication de ce dernier
WO2003083033A3 (fr) * 2002-03-27 2004-07-29 Kimberly Clark Co Savon a indication d'utilisation
WO2005067875A1 (fr) * 2003-12-31 2005-07-28 Kimberly-Clark Worldwide, Inc. Produits nettoyants liquides changeant de couleur
WO2006137955A1 (fr) * 2005-06-17 2006-12-28 Kimberly-Clark Worldwide, Inc. Composition changeant de couleur comprenant un ingrédient thermochromique
WO2007070118A1 (fr) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Composition de nettoyage changeant de couleur
WO2008128870A1 (fr) * 2007-04-18 2008-10-30 Unilever Plc Composition en barre comprenant un pigment ou un colorant thermochromique indicateur de la libération d'un agent à effet bénéfique ou d'un autre usage et procédé d'indication associé
US7651989B2 (en) 2003-08-29 2010-01-26 Kimberly-Clark Worldwide, Inc. Single phase color change agents
US7659236B2 (en) 2007-04-18 2010-02-09 Conopco, Inc. Bar composition comprising thermochromic pigment or dye signalling benefit agent release or other use
US7829515B2 (en) 2007-04-18 2010-11-09 Conopco, Inc. Method of signalling temperature and/or benefit agent release using bar composition comprising thermochromic pigment or dye
US7960326B2 (en) 2002-09-05 2011-06-14 Kimberly-Clark Worldwide, Inc. Extruded cleansing product
US8067350B2 (en) 2005-12-15 2011-11-29 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427708A (en) * 1993-04-16 1995-06-27 Stark; Thomas O. Glow-in-the-dark liquid cleansers
GB9520595D0 (en) * 1995-10-07 1995-12-13 Cussons Int Ltd Soap bar
US5876995A (en) 1996-02-06 1999-03-02 Bryan; Bruce Bioluminescent novelty items
US6247995B1 (en) 1996-02-06 2001-06-19 Bruce Bryan Bioluminescent novelty items

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1465883A (fr) * 1965-01-26 1967-01-13 Brique de savon marquée d'un signe distinctif similaire à une impression et procédé d'apposition du signe distinctif
GB1439244A (en) * 1972-09-29 1976-06-16 Procter & Gamble Liquid crystalline compositions
CH625359A5 (en) * 1976-11-18 1981-09-15 Ips Int Prod Services Process for manufacturing a multilayer element making it possible to obtain overlaid images visible one at a time at a specified temperature
GB1597388A (en) * 1977-01-21 1981-09-09 Cellograf Simp Spa Multilayered structure incorporating a thermometer
US4738549A (en) * 1986-04-03 1988-04-19 Plimpton R Gregory Pool thermometer
JPH01246209A (ja) * 1988-03-28 1989-10-02 Mikimoto Seiyaku Kk 液晶を含む化粧料
FR2648824A1 (fr) * 1989-06-26 1990-12-28 Soumdedouge Lamalesse Roger Le savon educateur : procede consistant a inclure un objet a l'interieur d'un savon pour que l'utilisateur dudit savon ait a user ce dernier afin de pouvoir atteindre l'objet cache dans la matiere savonneuse. ce procede aura la vertu educative d'habituer enfant et adolescent a l'usage frequent d'un savon tout en s'amusant

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002729A1 (fr) * 2000-07-05 2002-01-10 Ovation Worldwide Limited Article de savon et procede de fabrication de ce dernier
AU2003220032B2 (en) * 2002-03-27 2010-04-22 Kimberly-Clark Worldwide, Inc. Use indicating soap
WO2003083033A3 (fr) * 2002-03-27 2004-07-29 Kimberly Clark Co Savon a indication d'utilisation
CN1643127B (zh) * 2002-03-27 2010-05-26 金伯利-克拉克环球有限公司 指示使用的肥皂
US7053029B2 (en) 2002-03-27 2006-05-30 Kimberly-Clark Worldwide, Inc. Use indicating soap
KR100925077B1 (ko) * 2002-03-27 2009-11-04 킴벌리-클라크 월드와이드, 인크. 사용 표시 비누
US7960326B2 (en) 2002-09-05 2011-06-14 Kimberly-Clark Worldwide, Inc. Extruded cleansing product
US7858568B2 (en) 2003-08-29 2010-12-28 Kimberly-Clark Worldwide, Inc. Single phase color change agents
US7651989B2 (en) 2003-08-29 2010-01-26 Kimberly-Clark Worldwide, Inc. Single phase color change agents
US7268104B2 (en) 2003-12-31 2007-09-11 Kimberly-Clark Worldwide, Inc. Color changing liquid cleansing products
GB2425776B (en) * 2003-12-31 2009-04-15 Kimberly Clark Co Color changing liquid cleansing products
GB2425776A (en) * 2003-12-31 2006-11-08 Kimberly Clark Co Color changing liquid cleansing products
WO2005067875A1 (fr) * 2003-12-31 2005-07-28 Kimberly-Clark Worldwide, Inc. Produits nettoyants liquides changeant de couleur
WO2006137955A1 (fr) * 2005-06-17 2006-12-28 Kimberly-Clark Worldwide, Inc. Composition changeant de couleur comprenant un ingrédient thermochromique
WO2007070118A1 (fr) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Composition de nettoyage changeant de couleur
US8067350B2 (en) 2005-12-15 2011-11-29 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
US7659236B2 (en) 2007-04-18 2010-02-09 Conopco, Inc. Bar composition comprising thermochromic pigment or dye signalling benefit agent release or other use
US7829515B2 (en) 2007-04-18 2010-11-09 Conopco, Inc. Method of signalling temperature and/or benefit agent release using bar composition comprising thermochromic pigment or dye
WO2008128870A1 (fr) * 2007-04-18 2008-10-30 Unilever Plc Composition en barre comprenant un pigment ou un colorant thermochromique indicateur de la libération d'un agent à effet bénéfique ou d'un autre usage et procédé d'indication associé
AU2008240873B2 (en) * 2007-04-18 2011-05-12 Unilever Plc Bar composition comprising thermochromic pigment or dye signaling benefit agent release or other use and method of signaling thereof

Also Published As

Publication number Publication date
EP0418049A3 (en) 1991-09-11
GB8920579D0 (en) 1989-10-25
GB2235931B (en) 1992-09-23
GB2235931A (en) 1991-03-20

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