GB2305932A - Soap bar - Google Patents

Soap bar Download PDF

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Publication number
GB2305932A
GB2305932A GB9620857A GB9620857A GB2305932A GB 2305932 A GB2305932 A GB 2305932A GB 9620857 A GB9620857 A GB 9620857A GB 9620857 A GB9620857 A GB 9620857A GB 2305932 A GB2305932 A GB 2305932A
Authority
GB
United Kingdom
Prior art keywords
bar
soap
temperature
soap bar
temperature sensitive
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Withdrawn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
GB9620857A
Other versions
GB9620857D0 (en
Inventor
Sarah Ruth Dodd
David William Farren
Sivakumar Namasivayam
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.)
Cussons International Ltd
Original Assignee
Cussons International 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 Cussons International Ltd filed Critical Cussons International Ltd
Publication of GB9620857D0 publication Critical patent/GB9620857D0/en
Publication of GB2305932A publication Critical patent/GB2305932A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40Dyes ; Pigments
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00Compositions of detergents based essentially on soap
    • C11D9/04Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/44Perfumes; Colouring materials; Brightening agents ; Bleaching agents
    • C11D9/444Dyes; Pigments

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)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)

Abstract

A soap bar comprises from 10% to 99% by weight of the bar of at least one soap base and from 0.1 to 10% by weight of the bar of at least one temperature sensitive dye. The soap bar is operative to change colour when the temperature of the bar moves beyond a transitional temperature for the temperature sensitive dye.

Description

sOAP BAR The present invention relates to a soap bar.
Soap bar cleansing products are well known and have been available for many years. It is conventional to produce soap bars in one of a range of colours by incorporating a dye into the soap. It is also known to incorporate pearlescent agents into soap bars or to provide marbled soaps, such as that marketed in the U.K.
under the trade mark SHIELD.
The present invention seeks to provide a novelty soap bar which would appeal, in particular, to children.
According to the present invention there is provided a soap bar comprising the following components: from 10% to 99% by weight of the bar of at least one soap base and from 0.1 to 10% by weight of the bar of at least one temperature sensitive dye, wherein the soap bar is operative to change colour when the temperature of the bar moves beyond a transitional temperature for the temperature sensitive dye.
Thus the present invention provides a soap bar, the colour of which changes when subjected to elevated temperatures. A typical transitional temperature for the temperature sensitive dye would usually be in the range from 10 C to 500C and would typically be in the range from 30-35"C. The temperature change is ideally reversible, i.e. the bar reverts to its original colour on cooling. The temperature reversibility would ideally be repeatable for the life of the product.
The soap base preferably includes the salts of fatty acids derived from tallow, coconut, palm, palm kernel oil, palm stearine oil or blends thereof. The cation is preferably sodium, potassium or triethanolammonium. The soap base may be made by either the Alfa-Laval method or the pan process and is usually extruded into noodles.
These processes are well known in the art and need not be described in detail here.
The temperature sensitive dyes are available from Magna Colours of Barnsley, Yorkshire, under the trade mark VARIOTHERM. The dyes are available in a range of different colours, such as red, blue or black. The VARIOTHERM dyes consist of spherical particles which are approximately 5 to 30 microns in diameter. The VARIOTHERM dye/colour has a pigmenting property. The physical and chemical features of the VARIOTHERM dye is a function of the capsule film, whilst light fastness is related to the property of the colouring matter involved.
The capsule film of VARIOTHERM is water insoluble.
The bar preferably further comprises from 0 to 0.8% by weight of the bar of at least one non-temperature sensitive colouring agent of the type conventionally used in personal care formulations. Typical colouring agents are those dyes/pigments supplied by D.F. Anstead including for example Pigment Red No. 5 (CI 12490), Pigment Yellow No. 1 (CI 11680), Pigment Green No. 7 (CI 74260), Pigment Blue No. 15 (CI 74160), Pigment Orange 43 (CI 71105).
The bar may further comprise from 0 to 5% by weight of the bar of additional additives such as fragrance, natural oils, moisturisers, preservatives, for example magnesium silicate. Such additional additives are well known in this field and are not listed in detail herein.
The invention will now be described further by way of the following example.
Example % w/w 80/20 soap base 93.4% VARIOTHERM dye (Vermillion paste 25) 2.5% Irgalite Yellow 10G Colour (CI 11710, 1% solution) 3.0 Perfume 1.0% EDTA preservative 0.1% In this case an 80/20 blend of sodium tallowate and sodium cocoate (or sodium palm kernelate) was used. The soap base included magnesium silicate and approximately 11% by weight of water.
The blended soap base was milled 3 times to ensure thorough mixing. Then the base was plodded and a billet extruded. The extruded bars were stamped into shaped bars.
At room temperature the red VARIOTHERM colour appears in the bar and as the temperature rises as the bar is placed under warm bath water to 30-350C, the red VARIOTHERM colour disappears and the bright yellow (standard) colour appears. On cooling to room temperature, the red VARIOTHERM colour reappears.
These coloured soap bars indicate the temperature rise in the bath through the disappearance of one colour and appearance of another colour, making bathing enjoyable for children.
It is to be understood that the above described example is by way of illustration only. Many modifications and variations are possible.
For example any temperature sensitive dye can be used as long as it operates within the specified temperature range. The dye may gain or lose colour at elected temperatures or simply change colour. Also any second dye can be used - yellow was merely used for its aesthetics. Without the second dye the bar would change from, in this case, red to white and back again.

Claims (7)

1. A soap bar comprising the following components: from 10% to 99% by weight of the bar of at least one soap base and from 0.1 to 10% by weight of the bar of at least one temperature sensitive dye, wherein the soap bar is operative to change colour when the temperature of the bar moves beyond a transitional temperature for the temperature sensitive dye.
2. A soap bar as claimed in claim 1, wherein the said transitional temperature for the temperature sensitive dye is in the range from 10"C to 500C.
3. A soap bar as claimed in claim 1 or claim 2, wherein the said transitional temperature for the temperature sensitive dye is in the range from 30"C to 500C.
4. A soap bar as claimed in any preceding claim, wherein the bar reverts to its original temperature on cooling below the said transitional temperature.
5. A soap bar as claimed in any preceding claim, wherein the soap base includes the salts of fatty acids derived from any of the following or blends thereof:- tallow, coconut, palm, palm kernel oil, or palm stearine oil.
6. A soap bar as claimed in any preceding claim, wherein the bar comprises from 0 to 0.08% by weight of the bar of at least one non-temperature sensitive colouring agent.
7. A soap bar substantially as described herein with reference to the example.
GB9620857A 1995-10-07 1996-10-07 Soap bar Withdrawn GB2305932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9520595.1A GB9520595D0 (en) 1995-10-07 1995-10-07 Soap bar

Publications (2)

Publication Number Publication Date
GB9620857D0 GB9620857D0 (en) 1996-11-27
GB2305932A true GB2305932A (en) 1997-04-23

Family

ID=10782015

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9520595.1A Pending GB9520595D0 (en) 1995-10-07 1995-10-07 Soap bar
GB9620857A Withdrawn GB2305932A (en) 1995-10-07 1996-10-07 Soap bar

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9520595.1A Pending GB9520595D0 (en) 1995-10-07 1995-10-07 Soap bar

Country Status (1)

Country Link
GB (2) GB9520595D0 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006137955A1 (en) * 2005-06-17 2006-12-28 Kimberly-Clark Worldwide, Inc. Color-changing composition comprising a thermochromic ingredient
WO2007070118A1 (en) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
WO2008128870A1 (en) * 2007-04-18 2008-10-30 Unilever Plc Bar composition comprising thermochromic pigment or dye signaling benefit agent release or other use and method of signaling thereof
WO2008132616A1 (en) * 2007-04-27 2008-11-06 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
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
LU101966B1 (en) * 2020-07-13 2022-01-13 Evelyn Lynch Color changing hand soap with two color transitions
WO2022013261A1 (en) 2020-07-13 2022-01-20 Evelyn Lynch Color-change hand soap with two color changes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235931A (en) * 1989-09-12 1991-03-20 Colin David Rickson Cake of soap

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235931A (en) * 1989-09-12 1991-03-20 Colin David Rickson Cake of soap

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Derwent Abstract No C90-013925 relating to JP1308499 (Ando) 13.12.89 *
Derwent Abstract No C93-147058 relating to JP5239498 (Kanebo) 17.09.93 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7651989B2 (en) 2003-08-29 2010-01-26 Kimberly-Clark Worldwide, Inc. Single phase color change agents
US7858568B2 (en) 2003-08-29 2010-12-28 Kimberly-Clark Worldwide, Inc. Single phase color change agents
WO2006137955A1 (en) * 2005-06-17 2006-12-28 Kimberly-Clark Worldwide, Inc. Color-changing composition comprising a thermochromic ingredient
WO2007070118A1 (en) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
US8067350B2 (en) 2005-12-15 2011-11-29 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
WO2008128870A1 (en) * 2007-04-18 2008-10-30 Unilever Plc Bar composition comprising thermochromic pigment or dye signaling benefit agent release or other use and method of signaling thereof
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
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
WO2008132616A1 (en) * 2007-04-27 2008-11-06 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
LU101966B1 (en) * 2020-07-13 2022-01-13 Evelyn Lynch Color changing hand soap with two color transitions
WO2022013261A1 (en) 2020-07-13 2022-01-20 Evelyn Lynch Color-change hand soap with two color changes

Also Published As

Publication number Publication date
GB9520595D0 (en) 1995-12-13
GB9620857D0 (en) 1996-11-27

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)