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
  • C11D17/0095—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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
• • 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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0068—Deodorant compositions

Definitions

• deodorant materials have been described in the literature and include germicides and deodorant compositions which are perceivable by the olfactory sense and can be used as a perfume material or as a base for a perfume material. Examples of deodorant compositions of this latter class are disclosed in, for example UK patent specification 2016507 (Unilever).
• a deodorant material having a result of from 0.5 to 3.5 in a Deodorant Value Test described in UK 2016507 is increased when incorporated in a rosin containing transparent bar.
• the rosin will usually be present in the range from about 1% to about 30% by weight of the bar preferably above about 4% and the deodorant composition in the range from about 0.1% to about 10% by weight.
• the increase in the deodorant composition effectiveness derives from the matured transparent phase of the soap which-may, in some product compositions, not be appreciated in the form of a transparent bar.
• an opaque filler for example titanium dioxide or silica
• the existence of the transparent phase structure would provide an increase in the deo-effectiveness.
• the method of forming the transparent phase structure is not critical; the intense working and casting methods form bars which provide an environment in which the deodorant material has increased effectiveness.
• the transparency will increase to a commercially useful level during maturation. This process will usually be allowed to proceed at ambient temperature ie, about 20°C but higher temperatures ie, up to about 30°C and up to about 40°C are usable for some compositions.
• the transparent phase will preferably satisfy the test requirements of US 2970116 (Kelly) and have a Translucency Voltage of 30 or less.
• the deo-effectiveness of deodorant compositions is measured as the Deodorant Value (DV) by the method described in UK patent specification 2016507.
• DV Deodorant Value
• This specification also discloses the lipoxidase test, by which the lipoxidase inhibiting capacity is measured, and the morpholine test from which the Raoult variance ratio is derived.
• the soap bar will include a deodorant composition consisting essentially of from about 45 to 100% by weight of at least five components and from 0 to about 55% by weight of other ingredients, each of the components being selected from components having a lipoxidase inhibiting capacity of at least 50% and components having a Raoult variance ratio of at least 1.1, the components and ingredients being so chosen that the deodorant value of the deodorant composition is within the range 0.50 to 3.5.
• a deodorant composition consisting essentially of from about 45 to 100% by weight of at least five components and from 0 to about 55% by weight of other ingredients, each of the components being selected from components having a lipoxidase inhibiting capacity of at least 50% and components having a Raoult variance ratio of at least 1.1, the components and ingredients being so chosen that the deodorant value of the deodorant composition is within the range 0.50 to 3.5.
• Each component should be allocated to one of six classes. These classes are:
• the component In attributing a component to a class, the following rules are to be observed. Where the component could be assigned to more than one class, the component is allocated to the class occurring first in the order given above: for example clove oil, which is phenolic in character, is placed in Class 1 although it otherwise might have been allocated to Class 2. Similarly, 2-n-heptyl cyclopentanone which is a polycyclic ketone is attributed to Class 3 instead of Class 4.
• perfume components are:
• the rules are applied only to those components of the deodorant composition present at a level of at least 0.5% by weight of the composition.
• deodorant compositions to which this application relates are minor but relatively expensive ingredients. Thus any route to reducing the problem of the economics of their commercial use must be of benefit.
• the soap bar may include non-soap detergents in amounts which would not interfere with the production of the transparent phase.
• non-soap detergents examples include alkane sulphonates, alcohol sulphates, alkyl benzene sulphonates, alkyl sulphates, acyl isethionates, olefin sulphonates and ethoxylated alcohols.
• Transparent soaps may contain components to assist in the processing or provision of the desired properties, examples are potassium soaps, glycerol, sorbitol and castor derived soaps.
• oils and fats are saponified, washed and fitted as for a conventional milled soap.
• the soap is then dissolved in sufficient alcohol to form a (isotropic) solution.
• Some variations in technique occur in making the alcohol solution.
• Either the fitted liquid soap is directly dissolved in alcohol, or the soap is dired to a controlled total fatty matter (TFM) before being dissolved in alcohol or alcohol/water.
• TBM total fatty matter
• the melted oils and fats are mixed with clarifier/filter and with alkali, poured into frames and allowed to react in situ without the external application of heat.
• a rather large excess of caustic is required which remains in the final bar; free caustic levels of greater than 1% are common in the type of bar.
• Tallow may be replaced partly or completely by hardened oils with a similar titre
• bleached palm oil coconut oil or palm kernel oil and castor oil are the most commonly used sources of fatty acids (Davidsohn, Soap Manufacture Vol I).
• sugar, glycerol and alcohol are the main organic raw materials
• sodium carbonate, potassium carbonate and sodium silicate represent the main inorganic raw materials.
• a number of formulations for cast transparent soap bars are given in the literature.
• oils and fats can be saponified, washed, fitted and dried using conventional soap-making procedures.
• Colouring material and perfume can be incorporated by the standard methods used for conventional soap production.
• the transparency is generated during an energetic working stage.
• the plodding, stamping and wrapping stages can be carried out as for a conventional soap line.
• the transparency will normally increase during a maturation period.
• Formulations are as for conventional, high tallow soaps. They may in addition contain for example potassium soaps, higher levels of glycerol or sorbitol.
• the following bars were prepared and subjected to panel testing with the regime described in UK 2016507.
• the deodorant composition used was a perfume composition having a Deodorant Value of 1.0 when subjected to the test procedure described previously.
• the results are given in the Table quoting the difference in perceived odour score with respect to the control.
• This bar was made using the same procedures described for Bar A with the addition of 11 ⁇ 2% of the perfume having a deodorant value (DV) of 1.0 during the milling stage.
• the bars were stored for a period of six weeks at 20°C before testing.
• the standard pan-room procedures were modified so as to minimise the loss of the more soluble components (glycerol and potassium soap).
• the fats and oils were added to the nigre of the previous boil.
• the mix was saponified by using the appropriate blend of NaOH/KOH and fitted so the neat soap separated on top of nigre and a small amount of lye.
• the neat soap layer was removed and additional glycerol added (to take account of the small loss the lye) together with additional electroyte.
• the composition of the neat soap was such that it contained:
• the dried soap chips were placed in a sigma blade mixer and 11 ⁇ 2% of the perfume used in bar B added.
• the soap was worked in a Sigma blade mixer at a temperature and water content in the ranges described in US 2970116 for a period sufficient to generate a transparent phase. Care was taken to minimise water loss by enclosing the mixer; the temperature was controlled by means of a thermostatic heat-jacket.
• the bars were subsequently plodded and stamped in the conventional manner. They were then stored at 20°C and matured for 6 weeks before testing.
• Bar D was made using the procedures for Bar C except for the pre-saponification stage where the rosin (5% by weight of the final bar) was incorporated into the formulation by adding it to the nigre of the previous boil. The fats and oils were then added to the rosin and nigre and the saponification and subsequent stages were carried out as described for Bar C.
• a deodorant composition was added to a rosin containing transparent bar at a level of 1.5%.
• the deodorant composition had a deodorant value (DV) of 0.78.
• the product bar which had the same base formulation as bar D of Example I, had a difference in Odour Score of 1.36.
• a deodorant composition with the formulation below was added to a rosin containing transparent bar at a level of 1.5%.
• the deodorant composition had a deodorant value (DV) of 0.60.
• a comparison bar having the formulation of bar C of Example I had a difference in Odour Score of 0.76.
• the product bar, which had the same base formulation as bar D of Example I had a difference in Odour Score of 1.35.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Detergent Compositions (AREA)
• Cosmetics (AREA)
• Mechanical Treatment Of Semiconductor (AREA)
• Telephonic Communication Services (AREA)
• Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
• Coating With Molten Metal (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

Family

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Family Applications (1)

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Cited By (3)

Citations (3)

• 1983
  • 1983-10-14 GB GB838327617A patent/GB8327617D0/en active Pending
• 1984
  • 1984-10-11 BR BR8405166A patent/BR8405166A/pt not_active IP Right Cessation
  • 1984-10-12 AU AU34176/84A patent/AU575347B2/en not_active Ceased
  • 1984-10-12 CA CA000465340A patent/CA1232818A/fr not_active Expired
  • 1984-10-12 EP EP84307006A patent/EP0138597B1/fr not_active Expired
  • 1984-10-12 DE DE8484307006T patent/DE3479517D1/de not_active Expired
  • 1984-10-12 ZA ZA847992A patent/ZA847992B/xx unknown
  • 1984-10-12 AT AT84307006T patent/ATE45765T1/de not_active IP Right Cessation
  • 1984-10-15 JP JP59216039A patent/JPS60104198A/ja active Pending
  • 1984-10-15 IN IN282/BOM/84A patent/IN159933B/en unknown

Patent Citations (3)

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