WO1993001794A1 - Perfume additives for fabric-softening compositions - Google Patents
Perfume additives for fabric-softening compositions Download PDFInfo
- Publication number
- WO1993001794A1 WO1993001794A1 PCT/US1992/005686 US9205686W WO9301794A1 WO 1993001794 A1 WO1993001794 A1 WO 1993001794A1 US 9205686 W US9205686 W US 9205686W WO 9301794 A1 WO9301794 A1 WO 9301794A1
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- WO
- WIPO (PCT)
- Prior art keywords
- perfume
- softening
- additive according
- softening active
- fabric
- Prior art date
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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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0034—Fixed on a solid conventional detergent ingredient
-
- 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
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
-
- 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
- C11D3/50—Perfumes
- C11D3/502—Protected perfumes
- C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay
Definitions
- the present invention relates to perfume additives for use in combination with fabric- softening compositions.
- Fabric-softening compositions to be added in the rinse step of a laundry cycle are well known.
- Such a carrier system consists of porous
- silica onto which a mixture, at specific ratios, of perfume and softening active is adsorbed is adsorbed.
- porous spheroidal silica per se as carrier for a wide range of material including perfumes, has been disclosed in EP-A-294 206, not relating to softening of fabrics nor any
- the present invention relates to a perfume additive in granular form for use with fabric- softening compositions, containing :
- the present invention also encompasses the use of said additives as single doses during use of fabric softening compositions, or the preparation of ready- to-use fabric softening compositions out of
- porous silica useful herein is a
- precipitated spheroidal silica having a particle size not exceeding 500 micrometers.
- the silica herein typically has a pore volume in the range 25 to 75%. This silica is further characterized by a BET surface area* superior to 50m 2 /g (DIN 66131) and a high absorption value.
- the absorption can be expressed as Dibutylphtalate (DBP) number, this DBP number should be above
- BET Brunauer, Emmet and Teller
- the ratio of perfume to softening active is from 1:10 to 5:1, preferably 1:5 to 3:1.
- Perfume in the sense of perfume components or compositions of perfume components, can be any odorifirous materials or any materials which act as a malodour counteractent.
- the perfume will most often be liquid at ambient temperatures, but also can be liquified solid such as the various camphoraceous perfumes known in the art.
- the perfume can be relatively simple in composition or can comprise highly sophisticated, compact
- perfumes are those odorous materials that deposit on fabrics during the laundry process and are detectable by people with normal olfactory sensitivity. Many of the perfume ingredients along with their odor character and their physical and chemical properties are given in "Perfume and Flavor chemicals (aroma chemicals)", Stephen
- perfume use includes materials such as aldehydes, ketones, esters and the like. More commonly, naturally occurring plant and animal oils and exudates comprising complex mixtures of various chemical components are known for use as perfume, and such materials can be used herein.
- Typical perfumes can comprise e.g. woody/earthy bases containing exotic materials such as sandalwood oil, civet and patchouli oil.
- the perfume also can be of a light floral fragrance e.g.- rose or violet extract. Further the perfume can be formulated to provide desirable fruity odours e.g. lime, limon or orange.
- benzaldehyde benzyl acetate, benzyl alcohol, benzyl formate, iso-bornyl acetate, camphene, cis- citral (neral), citronellal, citronellol,
- dihydrolinalool dihydromyrcenol, dimethyl phenyl carbinol, eucalyptol, geranial, geraniol, geranyl acetate, geranyl nitrile, cis-3-hexenyl acetate, hydroxycitronellal, d-limonene, linalool, linalool oxide, linalyl acetate, linalyl propionate, methyl anthranilate, alpha-methyl ionone, methyl nonyl acetaldehyde, methyl phenyl carbinyl acetate, laevo-menthyl acetate, menthone, iso-menthone, myrcene, myrcenyl acetate, myrcenol, nerol, neryl acetate, nonyl acetate, phenyl ethyl alcohol, alpha-pinene, beta-pinene
- the softening active for use in the perfume additives herein can be selected from the group of di-long chain quaternary ammonium compounds, di- long chain imidazoline compounds, di-long chain quaternized imidazoline compounds, as well as certain mono long-chain alkyl quaternary ammonium compounds and mono long-chain alkyl amines.
- Di-long chain quaternary ammonium compounds are of the formula :
- R 1 and R 2 are C 1-4 saturated alkyl groups or hydroxyalkyl groups and R 3 and R 4 are acyclic aliphatic C 8-30 , preferably C 12-23 , more preferably C 15-22 hydrocarbon groups which may be intempted by ester linkages, and A is an anion.
- R 1 and R 2 are methyl groups, and R 3 and R 4 are derived from fatty materials such as tallow.
- Preferred compounds of the formula above for use herein include the well known ditallowdimethyl ammonium chloride (DTDMAC), ditallowdimethyl ammonium methyl sulfate, and di(hydrogetated tallow) dimethyl ammonium chloride.
- DTDMAC ditallowdimethyl ammonium chloride
- R3 and R4 are interrupted by ester groups are disclosed in EP-A-239 910; such compounds have the advantage of being more rapidly biodegradable than the above-described compounds; preferred is N,N di(2- tallowyloxy-2-oxo-ethyl)N,N dimethylammonium chloride.
- Di-long chain imidazoline compounds are of the formula
- n is an integer from 2 to 4,
- R 1 and R 2 are, independently, a C 8- C 30 alkyl or alkenyl, preferably C 12 -C 20 alkyl, more preferably C 15 -C 18 alkyl, or mixtures of such alkyl radicals.
- alkyl radicals obtained from coconut oil, "soft” (non-hardened) tallow, and hardened tallow;
- X is - R 4 - T - - wherein T is O or NR 5 , R 5 being H or C 1 -C 4 alkyl, preferably H, and R 4 is a divalent C 1 -C 3 alkylene group or (C 2 H 4 O) m , wherein m is a number of from 1 to 8; or X is R 4 .
- imidazoline actives of the formula above are of the following formulae : la lb ⁇ N
- R 1 is a tallow group.
- ditallowimidazolines while compounds of formula lb are ditallowimidazoline esters.
- R and R 1 are, independently, C 11 -C 21 hydrocarbyl groups, preferably tallow
- R 2 is a C 1 -C 4 hydrocarbyl group, preferably methyl
- A is an anion
- m is an integer from 2 to 4, preferably 2 and X is R 4 - T - C -
- T is O or NR 5 , R 5 being H or C 1 -C 4 alkyl, preferably H, and R 4 is a divalent C 1 -C 3 alkylene group or (C 2 H 4 O) m , wherein m is a number of from 1 to 8; or X is R 4 .
- T is O and R 4 is (CH 2 ) 2 (quaternized ditallow imidazoline ester).
- R 1 is a C 8-30 acyclic aliphatic ,
- R 2 and R 3 are C 1-4
- R 1 is a C 8-30 alkyl or alkyl group
- m is an integer from 2 to 4, preferably 2 and
- X is R 4 - T - C - O
- T is O or NR 5 , R 5 being H or C 1 -C 4
- alkyl preferably H
- R 4 is a divalent C 1 -C 3
- alkylene group or (C 2 H 4 O) m , wherein m is a number of from 1 to 8 ; or X is R 4 .
- R 1 is an acyclic aliphatic C 8-30 ,
- R 2 , R 3 and R 4 are C 1-4 saturated alkyl groups or hydroxyalkyl
- a preferred mono-alkyl ammonium compound for use herein is cetyl trimethylammonium bromide.
- the mono long-chain alkyl amines and mono long-chain alkyl ammonium compounds are preferably used in combination with the di-long chain alkyl ammonium or imidazolines described hereinabove.
- the present additives may contain additional ingredients, which can be pre-mixed with the perfume and softening active before they are adsorbed onto the porous silicate, or added, after the adsorption is completed, to the particles.
- Ingredients which can be pre-mixed with the perfume and softening active are selected from the group of
- Ingredients which can be added to the particles after adsorption is complete include water-soluble coating materials/agglomerating materials and dyes
- Preferred ingredients to be pre-mixed are the esters of C8-20 alcohols, in particular glyceryl monostearate.
- the water-soluble coating/agglomerating materials can be selected from the group of polyvinyl alcohol, polyethylene glycol, sugars, polyacrylamides,
- Dyes are typically used and can be added to the mix before adsorption onto silica, or sprayed on the formed particles as a last step.
- a co-melt of the softening active and the perfume is typically made, possibly including an optional ingredient such as listed above.
- the co-melt is adsorbed on porous silica, keeping the temperature, needed to keep the co-melt liquid, typically at 50oC; Adsorption can be achieved by adding the co-melt in portions to the pre-heated porous silica under agitation, or by spraying it on pre-heated porous silica in a "Nauta" type mixer.
- the resulting free-flowing powder is cooled to a temperature ranging from 3oC to ambient, and sieved on an appropriate sieve (e.g.
- the powder is then agglomerated in an agglomeration unit, such as a Plough Share Lodige, possibly with the addition of a coating/agglomeration material; the agglomerate is cooled and sieved over an appropriate sieve (e.g. Mesh 22).
- an agglomeration unit such as a Plough Share Lodige
- perfume additives herein can either be used as single-dose additives for fabric softening
- compositions during use, or as additives in the preparation of fabric-softening compositions out of concentrates, before use.
- the present additives are used as single-dose additives to unperfumed fabric softening compositions during use; i.e. a dose of additive sufficient for a typical washing machine load is added to unperfumed fabric softening composition, prior to the rinse cycle of the laundry process.
- Such an addition can conveniently be made in the dispenser of automatic washing machines; i.e. before starting the laundry cycle, an amount of fabric softening composition in liquid form is first poured into the dispenser of the washing machine, and the specific dose of perfume additive in granular form is added to said fabric softening composition sitting in the dispenser, and is dispersed therein.
- the resulting mixture is then brought into contact with the fabrics, during the rinse cycle and the perfume is released onto the fabrics.
- perfume additives herein is not limited to liquid fabric softening compositions since their granular form would render them quite suitable for use in combination with fabric-softening
- compositions in particulate form such fabric- softening compositions can be used as is, or diluted with water before use.
- the present additives can conveniently be packaged into single- dose sachets containing the powdered additive, such sachets being made available to the consumer in the form of boxes containing several of them, said sachets containing either the same perfume, or different perfumes so as to allow the consumer to choose the perfume to be left on the laundered fabrics, for each laundry cycle.
- Dye is sprayed onto the above granulates; the formed granulates are used as perfume additives for fabric softening compositions.
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
Granular perfume additives for rinse-added fabric softening compositions are disclosed, said additives containing a mixture of perfume and softening active in specified ratios, adsorbed onto particles of porous silica.
Description
PERFUME ADDITIVES FOR FABRIC-SOFTENING
COMPOSITIONS
Technical Field
The present invention relates to perfume additives for use in combination with fabric- softening compositions.
Background
Fabric-softening compositions to be added in the rinse step of a laundry cycle are well known.
The overall function of such compositions can be defined as the improvement of fabrics
aesthetics/feel, after a wash cycle; this is why, in addition to softness, perfume delivery on fabrics from such compositions is an especially important aspect, and continuous efforts are made to improve such perfume delivery, so as to make it not only consumer-noticeable, but also long- lasting.
In EP-A-0 397 245 and EP-A-397 246 have been described perfume particles wherein perfume is dispersed within certain water-insoluble polymeric carrier materials, and the resulting particles are used in fabric cleaning or conditioning
compositions. Not all perfume compositions, however, are compatible with said polymeric
carrier materials.
It has now been found a simple and inexpensive carrier system for perfumes, which is fully
compatible with any perfume, and is very
convenient to use.
Such a carrier system consists of porous
silica onto which a mixture, at specific ratios, of perfume and softening active is adsorbed.
The use of porous spheroidal silica per se as carrier for a wide range of material including perfumes, has been disclosed in EP-A-294 206, not relating to softening of fabrics nor any
combination with softening active.
Summary of the Invention
The present invention relates to a perfume additive in granular form for use with fabric- softening compositions, containing :
- from 30% to 80% by weight of a mixture of perfume and softening active, in a ratio of perfume to softening active of 1:10 to 5:1, preferably 1:5 to 3:1
- from 20% to 70% by weight of porous silica on which said mixture of perfume and softening active is adsorbed, the particle size of the porous silica not exceeding 500 micrometers.
The present invention also encompasses the use of said additives as single doses during use of fabric softening compositions, or the preparation of ready- to-use fabric softening compositions out of
concentrates.
Detailed Description of the Invention
The porous silica
The porous silica useful herein is a
precipitated spheroidal silica, having a particle size not exceeding 500 micrometers.
The silica herein typically has a pore volume in the range 25 to 75%. This silica is further characterized by a BET surface area* superior to 50m2/g (DIN 66131) and a high absorption value.
The absorption can be expressed as Dibutylphtalate (DBP) number, this DBP number should be above
100g/100g, preferably above 200g/100g (DIN 53601, ASTM D 2414).
Porous silica corresponding to the above
specifications is available under the trade name SipernatR from Degussa. The additives herein
contain from 20% to 70% of porous silica.
The perfume/softening active mixture
The characterizing feature of the present
invention is that perfume is mixed with a
softening active before being adsorbed onto the porous silica. ----------------
* measured according to the method developed by
Brunauer, Emmet and Teller (BET), J. Amer. Chem.
SOC. 60, 309 (1938).
The ratio of perfume to softening active is from 1:10 to 5:1, preferably 1:5 to 3:1.
Perfume, in the sense of perfume components or compositions of perfume components, can be any odorifirous materials or any materials which act as a malodour counteractent. The perfume will most often be liquid at ambient temperatures, but also can be liquified solid such as the various camphoraceous perfumes known in the art. The perfume can be relatively simple in composition or can comprise highly sophisticated, compact
mixtures of natural or synthetic chemical
components, all chosen to provide any desired odour.
Useful perfumes are those odorous materials that deposit on fabrics during the laundry process and are detectable by people with normal olfactory sensitivity. Many of the perfume ingredients along with their odor character and their physical and chemical properties are given in "Perfume and Flavor chemicals (aroma chemicals)", Stephen
Arctender, Vols. I and II, Aurthor, Montclair, H.J. and the Merck Index, 8th Edition, Merck & Co., Inc. Rahway, N.J. Perfume components and compositions can also be found in the art, e.g. US Patent Nos. 4,145,184, 4,152,272, 4,209,417 or 4,515,705.
A wide variety of chemicals are known for perfume use including materials such as aldehydes, ketones, esters and the like. More commonly, naturally occurring plant and animal oils and exudates comprising complex mixtures of various chemical components are known for use as perfume, and such materials can be used herein. Typical perfumes can comprise e.g. woody/earthy bases containing exotic materials such as sandalwood
oil, civet and patchouli oil. The perfume also can be of a light floral fragrance e.g.- rose or violet extract. Further the perfume can be formulated to provide desirable fruity odours e.g. lime, limon or orange.
Particular examples of useful perfume
components and compositions are anetole,
benzaldehyde, benzyl acetate, benzyl alcohol, benzyl formate, iso-bornyl acetate, camphene, cis- citral (neral), citronellal, citronellol,
citronellyl acetate, paracymene, decanal,
dihydrolinalool, dihydromyrcenol, dimethyl phenyl carbinol, eucalyptol, geranial, geraniol, geranyl acetate, geranyl nitrile, cis-3-hexenyl acetate, hydroxycitronellal, d-limonene, linalool, linalool oxide, linalyl acetate, linalyl propionate, methyl anthranilate, alpha-methyl ionone, methyl nonyl acetaldehyde, methyl phenyl carbinyl acetate, laevo-menthyl acetate, menthone, iso-menthone, myrcene, myrcenyl acetate, myrcenol, nerol, neryl acetate, nonyl acetate, phenyl ethyl alcohol, alpha-pinene, beta-pinene, gamma-terpinene, alpha- terpineol, beta-terpineol, terpinyl acetate, vertenex (para-tertiary-butyl cyclohexyl acetate), amyl cinnamic aldehyde, iso-amyl salicylate, beta- caryophyllene, aldehyde, iso-amyl salicylate, beta-carophyllene, cedrene, cinnamic alcohol, couramin, dimethyl benzyl carbinyl acetate, ethyl vanillin, eugenol, iso-eugenol, flor acetate, heliotrophine, 3-cis-hexenyl salicylate, hexyl silicylate, lilial (para-tertiarybutyl-alpha- methyl hydrocinnamic aldehyde), gamma-methyl ionone, nerolidol, patchouli alcohol, phenyl hexanol, beta-selinene, trichloromethyl phenyl carbinyl acetate, triethyl citrate, vanillin, veratraldehyde, alpha-cedrene, beta-cedrene,
C15H24sesquiterpenes, benzophenone, benzyl
salicylate, ethylene brassylate, galaxolide
(1,3,4,6,7,8-hexahydro-4,6,7,8,8,-hexamethyl-
cyclo-penta-gamma-2-benzopyran), hexyl cinnamic aldehyde, lyral (4-(4-hydroxy-4-methyl phenyl)-3- cyclohexene-10-carboxaldehyde), methyl cedrylone, methyl dihydro jasmonate, methyl-beta-naphthyl ketone, musk ambrette, musk idanone, musk ketone, musk tibetine, musk xylol, aurantiol and
phenylethyl phenyl acetate.
The softening active for use in the perfume additives herein can be selected from the group of di-long chain quaternary ammonium compounds, di- long chain imidazoline compounds, di-long chain quaternized imidazoline compounds, as well as certain mono long-chain alkyl quaternary ammonium compounds and mono long-chain alkyl amines.
Di-long chain quaternary ammonium compounds are of the formula :
wherein R1 and R2 are C1-4 saturated alkyl groups or hydroxyalkyl groups and R3 and R4 are acyclic aliphatic C8-30, preferably C12-23, more preferably C15-22 hydrocarbon groups which may be intempted by ester linkages, and A is an anion.
Preferred are compounds of the formula above wherein R1 and R2 are methyl groups, and R3 and R4 are derived from fatty materials such as tallow.
Preferred compounds of the formula above for use herein include the well known ditallowdimethyl ammonium chloride (DTDMAC), ditallowdimethyl ammonium methyl sulfate, and di(hydrogetated tallow) dimethyl ammonium chloride.
Compounds of the formula above wherein R3 and R4 are interrupted by ester groups are disclosed in EP-A-239 910; such compounds have the advantage of being more rapidly biodegradable than the above-described compounds; preferred is N,N di(2- tallowyloxy-2-oxo-ethyl)N,N dimethylammonium chloride.
Di-long chain imidazoline compounds are of the formula
preferably 2, and R1 and R2 are, independently, a C8-C30 alkyl or alkenyl, preferably C12-C20 alkyl, more preferably C15-C18 alkyl, or mixtures of such alkyl radicals. Examples of such mixtures are the alkyl radicals obtained from coconut oil, "soft" (non-hardened) tallow, and hardened tallow;
X is - R4 - T - -
wherein T is O or NR5, R5 being H or C1 -C4 alkyl, preferably H, and R4 is a divalent C1-C3 alkylene group or (C2H4O)m, wherein m is a number of from 1 to 8; or X is R4.
wherein R1 is a tallow group.
Compounds of formula la are
ditallowimidazolines, while compounds of formula lb are ditallowimidazoline esters.
Quaternized di-long chain imidazoline
compounds are of the formula :
or mixtures thereof, wherein R and R1 are, independently, C11-C21 hydrocarbyl groups, preferably tallow, R2 is a C1-C4 hydrocarbyl group, preferably
methyl, A is an anion, m is an integer from 2 to 4, preferably 2 and X is R4 - T - C -
0
wherein T is O or NR5, R5 being H or C1-C4 alkyl, preferably H, and R4 is a divalent C1-C3 alkylene group or (C2H4O)m, wherein m is a number of from 1 to 8; or X is R4. Preferably, T is O and R4 is (CH2)2 (quaternized ditallow imidazoline ester).
Mono long-chain alkyl amines useful herein
include compounds of the formula R1 - N - R2
R3
wherein R1 is a C8-30 acyclic aliphatic ,
preferably C12-23 hydrocarbon group which may be
intempted by ester linkages, R2 and R3 are C1-4
saturated alkyl groups or hydroxyalkyl groups of
the formula (CH2CH2O)n H where n is an integer
from 1 to 5.
They further include monotallowimidazolines of the formula (CH2)m
N N - X - H
C
R1
wherein R1 is a C8-30 alkyl or alkyl group,
preferably C12-20, more preferably C15-18 ; m is an integer from 2 to 4, preferably 2 and
X is R4 - T - C - O
o
wherein T is O or NR5, R5 being H or C1-C4
alkyl, preferably H, and R4 is a divalent C1-C3
alkylene group or (C2H4O)m, wherein m is a number of from 1 to 8 ; or X is R4.
Mono alkyl quaternary ammonium compounds
wherein R1 is an acyclic aliphatic C8-30,
preferably C12-22 hydrocarbon group which may be interupted by ester linkages, R2, R3 and R4 are C1-4 saturated alkyl groups or hydroxyalkyl
groups; and A is an anion.
A preferred mono-alkyl ammonium compound for use herein is cetyl trimethylammonium bromide.
The mono long-chain alkyl amines and mono long-chain alkyl ammonium compounds are preferably used in combination with the di-long chain alkyl ammonium or imidazolines described hereinabove.
Most preferred softening actives for use in the additives herein are ditallowdimethyl
ammonium, ditallowimidazoline ester, quaternized ditallowimidazoline ester, and mixtures thereof.
Optional ingredients
The present additives may contain additional ingredients, which can be pre-mixed with the perfume and softening active before they are adsorbed onto the porous silicate, or added, after the adsorption is completed, to the particles.
Ingredients which can be pre-mixed with the perfume and softening active are selected from the group of
- sythetic and natural waxes
- synthetic and natural fats
- synthetic and natural mono, di and tri esters
of polyols with C8-C22 carboxylic acids or mixtures thereof
- C8-22 alcohols, ethoxylates thereof and esters thereof with C1-4 carboxylic acids
- dyes
Ingredients which can be added to the particles after adsorption is complete include water-soluble coating materials/agglomerating materials and dyes
Preferred ingredients to be pre-mixed are the esters of C8-20 alcohols, in particular glyceryl monostearate.
The water-soluble coating/agglomerating materials can be selected from the group of polyvinyl alcohol, polyethylene glycol, sugars, polyacrylamides,
polysaccharides and similar natural and synthetic polymers.
Dyes are typically used and can be added to the mix before adsorption onto silica, or sprayed on the formed particles as a last step.
Method of preparation of the additives herein
A co-melt of the softening active and the perfume is typically made, possibly including an optional ingredient such as listed above.
The co-melt is adsorbed on porous silica, keeping the temperature, needed to keep the co-melt liquid, typically at 50ºC; Adsorption can be achieved by adding the co-melt in portions to the pre-heated porous silica under agitation, or by spraying it on pre-heated porous silica in a "Nauta" type mixer.
The resulting free-flowing powder is cooled to a temperature ranging from 3ºC to ambient, and sieved on an appropriate sieve (e.g. Mesh 22); the powder is then agglomerated in an agglomeration unit, such as a Plough Share Lodige, possibly with the addition of a coating/agglomeration material; the agglomerate is cooled and sieved over an appropriate sieve (e.g. Mesh 22).
Use of the perfume additives herein
The perfume additives herein can either be used as single-dose additives for fabric softening
compositions, during use, or as additives in the preparation of fabric-softening compositions out of concentrates, before use.
Preferably, the present additives are used as single-dose additives to unperfumed fabric softening compositions during use; i.e. a dose of additive sufficient for a typical washing machine load is added to unperfumed fabric softening composition, prior to the rinse cycle of the laundry process.
Such an addition can conveniently be made in the dispenser of automatic washing machines; i.e. before starting the laundry cycle, an amount of fabric softening composition in liquid form is first poured into the dispenser of the washing machine, and the specific dose of perfume additive in granular form is added to said fabric softening composition sitting in the dispenser, and is dispersed therein.
The resulting mixture is then brought into contact with the fabrics, during the rinse cycle and the perfume is released onto the fabrics.
The use of the perfume additives herein is not limited to liquid fabric softening compositions since their granular form would render them quite suitable
for use in combination with fabric-softening
compositions in particulate form; such fabric- softening compositions can be used as is, or diluted with water before use.
When used as such single-wash doses, the present additives can conveniently be packaged into single- dose sachets containing the powdered additive, such sachets being made available to the consumer in the form of boxes containing several of them, said sachets containing either the same perfume, or different perfumes so as to allow the consumer to choose the perfume to be left on the laundered fabrics, for each laundry cycle.
The following examples illustrate the invention and facilitate the understanding.
The following granulates are prepared, according to the method described above (with cooling
temperature of 4ºC).
Claims
1. A perfume additive in granular form for use with fabric-softening compositions, containing :
- from 30% to 80% by weight of a mixture of perfume and softening active, in a ratio of perfume to softening active of 1:10 to 5:1
- from 20% to 70% by weight of porous silica on which said mixture of perfume and softening active are adsorbed, the particle size of the porous silica not exceeding 500 micrometers.
2. A perfume additive according to claim 1, wherein the softening active is selected from the group of di-long chain quaternary ammonium compounds, di-long chain imidazoline compounds, di-long chain quaternized imidazoline compounds, mono long chain amines, mono long chain quaternary ammonium
compounds, and mixtures thereof.
3. A perfume additive according to claim 2 wherein the softening active is selected from
ditallowdimethylammonium, ditallowimidazoline, ditallowimidazoline ester, quaternized ditallow imidazoline ester, and mixtures thereof.
4. A perfume additive according to claims 1-3 wherein the weight ratio of perfume to softening active is from 1:5 to 3:1.
5. A perfume additive according to claims 1-4 which, in addition contains an ingredient selected from the group of:
- sythetic and natural waxes
- synthetic and natural fats
- synthetic and natural mono, di and tri esters of polyols with C8-C22 carboxylic acids - C8-22 alcohols, ethoxylates thereof and esters thereof with C1-4 carboxylic acids
- water-soluble coating or agglomeration materials
- dyes
6. A perfume additive according to claim 5 wherein the water-soluble coating material is selected from the group of polyvinyl alcohol, polyethylene oxide/PEG, sugars, polyacrylamides, polysaccharides or similar synthetic or natural polymers.
7. A perfume additive according to claims 1-5 which contains perfume, softening active, a
polyethylene glycol, and a dye.
8. Use of a perfume additive according to claims 1-6 as a single-dose additive to a quantity of unperfumed fabric-softening composition useful for one laundry cycle of an automatic washing machine.
9. Use of a perfume additive according to claims 1-6 in the preparation of a fabric-softening
composition ready for use, out of a concentrated composition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5502838A JPH06509611A (en) | 1991-07-18 | 1992-07-10 | Flavor additives for textile softening compositions |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91201887A EP0523287A1 (en) | 1991-07-18 | 1991-07-18 | Perfume additives for fabric-softening compositions |
EP91201887.6 | 1991-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993001794A1 true WO1993001794A1 (en) | 1993-02-04 |
Family
ID=8207791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1992/005686 WO1993001794A1 (en) | 1991-07-18 | 1992-07-10 | Perfume additives for fabric-softening compositions |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0523287A1 (en) |
JP (1) | JPH06509611A (en) |
CA (1) | CA2113613C (en) |
IE (1) | IE922340A1 (en) |
MX (1) | MX9204224A (en) |
PT (1) | PT100706A (en) |
WO (1) | WO1993001794A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8226828B2 (en) | 2005-10-14 | 2012-07-24 | Alan David Cole Cantwell | SAF system and method involving specific treatments at respective stages |
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ATE245689T1 (en) * | 1992-05-12 | 2003-08-15 | Procter & Gamble | CONCENTRATED TISSUE PLASTICIZER COMPOSITIONS WITH BIODEGRADABLE TISSUE PLASTICIZERS |
WO1994007979A1 (en) * | 1992-09-28 | 1994-04-14 | The Procter & Gamble Company | Method for using solid particulate fabric softener in automatic dosing dispenser |
EP0622453A1 (en) * | 1993-04-26 | 1994-11-02 | Setric International S.A. | Process for particulate protection of a combustible product against the action of a chlorinated product mixed therewith |
WO1995030733A1 (en) * | 1994-05-09 | 1995-11-16 | Unilever N.V. | Bleach catalyst composition |
DE69534903T2 (en) * | 1995-08-31 | 2007-01-18 | The Procter & Gamble Company, Cincinnati | Use of allyl alcohol as a bad odor reducing agent |
ATE214729T1 (en) * | 1995-09-18 | 2002-04-15 | Procter & Gamble | RELEASE SYSTEMS |
CN1227599A (en) * | 1996-06-11 | 1999-09-01 | 普罗格特-甘布尔公司 | Process for producing a particulate laundry additive for perfume delivery having improved physical properties |
ID17072A (en) * | 1996-06-24 | 1997-06-23 | Givaudan Roure Int | PERFUME DELIVERY SYSTEM |
ES2225960T3 (en) * | 1997-03-15 | 2005-03-16 | THE PROCTER & GAMBLE COMPANY | LIBERATION SYSTEM |
DE19721885A1 (en) * | 1997-05-26 | 1998-12-03 | Henkel Kgaa | Process for the production of granules containing cationic surfactants |
AU6218100A (en) | 1999-07-20 | 2001-02-05 | Procter & Gamble Company, The | Improved encapsulated oil particles |
WO2002090479A1 (en) * | 2001-05-04 | 2002-11-14 | The Procter & Gamble Company | Perfumed particles and articles containing the same |
EP1471137B1 (en) * | 2003-04-23 | 2013-08-07 | The Procter & Gamble Company | A composition comprising a surface deposition enhacing cationic polymer |
DE102004020400A1 (en) * | 2004-04-23 | 2005-11-17 | Henkel Kgaa | Perfumed solids |
DE102004042933A1 (en) * | 2004-09-02 | 2006-03-23 | Henkel Kgaa | Solid formulated liquids for use in particulate detergents and cleaners |
JP2008527054A (en) * | 2004-12-21 | 2008-07-24 | エボニック デグサ ゲーエムベーハー | Perfume delivery system |
ES2388018T3 (en) * | 2008-01-10 | 2012-10-05 | Unilever N.V. | Granules |
US9186642B2 (en) | 2010-04-28 | 2015-11-17 | The Procter & Gamble Company | Delivery particle |
US9993793B2 (en) | 2010-04-28 | 2018-06-12 | The Procter & Gamble Company | Delivery particles |
WO2012138710A2 (en) | 2011-04-07 | 2012-10-11 | The Procter & Gamble Company | Personal cleansing compositions with increased deposition of polyacrylate microcapsules |
EP2694016B1 (en) | 2011-04-07 | 2017-05-24 | The Procter and Gamble Company | Shampoo compositions with increased deposition of polyacrylate microcapsules |
JP2014510140A (en) | 2011-04-07 | 2014-04-24 | ザ プロクター アンド ギャンブル カンパニー | Conditioner composition with increased adhesion of polyacrylate microcapsules |
GB2507750A (en) * | 2012-11-07 | 2014-05-14 | Intelligent Fabric Technologies Plc | Fabric softener with colloidal silica for imparting stain resistant properties |
WO2019034264A1 (en) * | 2017-08-18 | 2019-02-21 | Symrise Ag | Fragrance release composition |
EP3663385A1 (en) * | 2018-12-04 | 2020-06-10 | The Procter & Gamble Company | Particulate laundry softening wash additive |
EP3663384A1 (en) | 2018-12-04 | 2020-06-10 | The Procter & Gamble Company | Particulate laundry softening wash additive |
DE102019116071A1 (en) * | 2019-06-13 | 2020-12-17 | Henkel Ag & Co. Kgaa | Granular detergent, cleaning or treatment additive |
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CA2015736A1 (en) * | 1989-05-11 | 1990-11-11 | Diane G. Schmidt | Perfume particles for use in cleaning and conditioning compositions |
-
1991
- 1991-07-18 EP EP91201887A patent/EP0523287A1/en not_active Withdrawn
-
1992
- 1992-07-10 JP JP5502838A patent/JPH06509611A/en active Pending
- 1992-07-10 WO PCT/US1992/005686 patent/WO1993001794A1/en active Application Filing
- 1992-07-10 CA CA 2113613 patent/CA2113613C/en not_active Expired - Fee Related
- 1992-07-17 PT PT10070692A patent/PT100706A/en not_active Application Discontinuation
- 1992-07-17 MX MX9204224A patent/MX9204224A/en not_active IP Right Cessation
- 1992-07-17 IE IE922340A patent/IE922340A1/en not_active Application Discontinuation
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JPS532633A (en) * | 1976-06-25 | 1978-01-11 | Murata Machinery Ltd | Method of piecing without stopping spinning |
US4209417A (en) * | 1976-08-13 | 1980-06-24 | The Procter & Gamble Company | Perfumed particles and detergent composition containing same |
GB2066839A (en) * | 1979-12-29 | 1981-07-15 | Vysoka Skola Chem Tech | A Method of Manufacture of Perfumed Detergents |
US4636330A (en) * | 1980-03-11 | 1987-01-13 | Lever Brothers Company | Perfume depositing detergents containing perfume in a particulate matrix of a cationic compound |
US4536315A (en) * | 1983-06-01 | 1985-08-20 | Colgate Palmolive Co. | Perfume-containing carrier having surface-modified particles for laundry composition |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8226828B2 (en) | 2005-10-14 | 2012-07-24 | Alan David Cole Cantwell | SAF system and method involving specific treatments at respective stages |
Also Published As
Publication number | Publication date |
---|---|
IE922340A1 (en) | 1993-01-27 |
EP0523287A1 (en) | 1993-01-20 |
JPH06509611A (en) | 1994-10-27 |
PT100706A (en) | 1993-08-31 |
MX9204224A (en) | 1993-04-01 |
CA2113613C (en) | 1998-05-05 |
CA2113613A1 (en) | 1993-02-04 |
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