Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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BLEACHING COMPOSITIONS WITH
SELECTED PERFUMES FOR MASKING BLEACH ODOR
FIELD OF THE INVENTION
The present invention generally relates to bleaching compositions
having selected perfumes especially suitable for masking the "bleach" odor
associated with such compositions. More particularly, the invention relates
to bleaching compositions containing a bleaching agent, a bleach activator
and a perfume which effectively masks the odor of the composition before
and during use.
BACKGROUND OF THE INVENTION
It has long been common practice for consumers to use bleaching
compositions to provide effective and efficient surface bleaching of textiles
before and/or during typical fabric laundering processes. There are
numerous categories of bleaches which are well known in the art. Of the
wide variety currently available, chlorine releasing bleaches, inorganic
peroxygen bleaches, and organic peroxygen or peroxyacid bleaches are the
most common. The chlorine releasing bleaches have certain disadvantages
associated with their use such as, for example, their tendency to weaken or
degrade fabrics, a tendency to react with other components in the
composition in which they are present and their general propensity for
fading colors in many dyed fabrics. Additionally, under several bleaching
conditions chlorine bleaches cause yellowing of certain synthetic fabrics.
While inorganic peroxygen bleaches overcome many of the
disadvantages found with chlorine bleaches, they have limitations on use in
that they must be used at relatively high temperatures, such as 85~C or
higher. This drawback becomes significant in light of the washing practices
in countries where lower wash temperatures are used which are generally
less than about 60~C in order to reduce energy costs and prolong the life of
the fabric. This problem also renders the product ineffective when used to
"pre-soak" especially soiled fabrics. As a consequence, it is generally
necessary to improve the low temperature performances of inorganic
peroxygen bleaches through the addition of peroxygen bleach activators
also known as peroxyacid precursors.
Many have also used peroxygen or peroxyacid bleaches, either alone
or in combination with a bleach activator, as an alternative to the chlorine
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and inorganic peroxygen bleaches described above. Various products
including peroxygen bleaches and activators therefor have been used, for
example, detergent compositions containing a bleach/bleach activator
system and bleach additive products which are added separately from the
detergent composition. Other bleaching compositions include those which
are used as a "pre-soak" product for extensively soiled fabrics. The
previously mentioned detergent compositions and bleaching compositions
can be used in this manner, as well. In use, the pre-soak products or other
bleach-containing products require the user to immerse the soiled fabrics
and bleach-containing product into a washing solution that is typically
contained in a bucket, sink or similar open container for 20 to 30 minutes (or
longer) during which a strong "bleach" odor is emitted from the washing
solution. Consumers are offended by such readily detectable bleach odor,
a problem which is exacerbated when the product contains high levels of
bleach. This problem has been very noticeable in products which contain
peroxygen bleach and activators therefor.
Accordingly, despite the aforementioned disclosures in the art, there
is still a need for a bleaching composition which includes a bleaching agent,
a bleach activator and a perfume that effectively masks the odor of such
components. There is also a need for such a composition which contains a
perfume that effectively masks the odor of the bleaching agent and bleach
activator, even when the composition is used as a pre-soak product and
contains high levels of bleach.
BACKGROUND ART
The following references disclose bleaching compositions: Hardy et
al, U.S. Patent No. 4,536,314 (Procter & Gamble); Thompson et al, U.S.
Patent No. 4,539,130 (Procter & Gamble); and Burns, U.S. Patent No.
4,606,838 (Procter & Gamble). The following reference discloses a
bleaching composition with perfumes: Nicholson, U.S. Patent No.
5,248,434 (Procter & Gamble).
SUMMARY OF THE INVENTION
The invention meets the needs identified above by providing
bleaching compositions and detergent compositions containing a bleaching
agent and a bleach activator which include a selected perfume particularly
suitable for masking the bleach odor emitted by such compositions before
and during use. The compositions herein can optionally contain relatively
high levels of bleaching agents and activators without significant detection
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of undesirable odors typically associated with such compositions. As a
result, the compositions of the invention can be used in a wide variety of
applications including presoak operations wherein soiled fabrics are soaked
in open containers, i.e. bucket or sink, prior to conventional laundering
operations. The consumer does not notice the bleach odors of the
compositions when used in the aforementioned presoaking operations
because of the perfume. The selected perfumes used in the compositions
herein unexpectedly provide masking of the harsh odors normally
associated with the bleach-containing compositions described herein.
As used herein, the phrase "Odor Detection Threshold (ODT)" refers
to the value (typically reported as an average value with units of "parts per
trillion") commonly used in the perfumery arts which is the lowest
concentration at which significant detection takes place that some odorous
material is present. See, for example, Calkin et al, Peffumery, Practice and
Principles, John Wiley & Sons, Inc., page 243 et seq (1994) which refers to
such a value as being well know in the art and defines various means of
measurement, the disclosure of which is incorporated herein in its entirety.
As used herein, the designation "AMU" refers to atomic weight and may also
be expressed as g/mole. All percentages, ratios and proportions used
herein are by weight, unless otherwise specified. All documents including
patents and publications cited herein are incorporated herein by reference.
In accor~lal ,ce with one aspect of the invention, a bleaching
composition is provided. The bleaching composition comprises: (a) a
peroxygen bleaching agent; (b) a bleach activator; and (c) a perfume. The
perfume contains, by weight of the perfume, (i) at least about 25% of a
fragrance material selected from the group consisting of aldehydes with a
molecular weight greater than 200 AMU, esters with a molecular weight
above 200 AMU, alcohols with a molecular weight between 120 and 160
AMU and mixtures thereof, wherein at least about 10% by weight of the
fragrance material has an Odor Detection Threshold (ODT) value of less
than about 100 parts per trillion; and (ii) at least about 1.0% of an adjunct
material with an Odor Detection Threshold (ODT) value of less than about
100 parts per trillion. The perfume is substantially free of halogenated
fragrance materials and nitromusks.
In another aspect of the invention, a granular detergent composition
is provided. The granular detergent composition comprises: (a) from about
0.1% to about 40% by weight of a peroxygen bleaching agent selected from
-
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the group consisting of percarbonates, perborates, peroxides and mixtures
thereof; (b) from about 0.1% to about 20% by weight a bieach activator
having the formula
ll
. R--C--LG
wherein R is an alkyl group containing from about 5 to about 18 carbon
atoms and LG is a leaving group, the conjugate acid of which has a PKa of
from about 4 to about 13; wherein the LG has the formula
o~Y
wherein Y is selected from the group consisting of SO3- M+, COO~ M+,
SO4- M+, PO4- M+, PO3- M+, (N~R23)X- and o~N(R22 ), M is a cation~
X is an anion, and R2 is an alkyl chain containing from about 1 to about 4
carbon atoms or H; and (c) from about 0.01% to about 2% of a perfume
containing, by weight of the perfume, (i) at least 25% of a fragrance
material selected from the group consisting of aldehydes with a molecular
weight greater than 200 AMU, esters with a molecular weight above 200
AMU, alcohols with a molecular weight between 120 and 160 AMU and
mixtures thereof, wherein at least 10% by weight of the fragrance material
has an Odor Detection Threshold (ODT) value of less than about 100 par~s
per trillion; and (ii) at least 1.0% of an adjunct material with an Odor
Detection Threshold (ODT) value of less than about 100 parts per trillion.
This perfume is also substantially free of halogenated fragrance materials
and nitromusks.
In yet another aspect of the invention, a bleaching composition as
described herein is provided which is in the form of a liquid. Also a method
of laundering soiled clothes is provided, wherein the method comprises the
step of contacting the soiled clothes with an aqueous washing solution
containing a bleaching composition as described herein. A presoaking
method is also provided which comprises the steps of soaking the soiled
clothes in an aqueous soaking solution of a bleaching composition as
described herein and thereafter, contacting the clothes with an aqueous
washing solution containing a detergent composition.
Accordingly, it is an object of the invention to provide a bleaching
composition which includes a bleaching agent, a bleach activator and a
perfume that effectively masks the odor of such components before and
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during use. It is also an object of the invention to provide a bleaching
composition which contains such a perfume that effectively masks the odor
of the bleaching agent and bleach activator, even when the composition is
used as a pre-soak product and contains high levels of bleaching agents
and activators. These and other objects, features and attendant
advantages of the present invention will become apparent to those skilled in
the art from a reading of the following detailed description of the preferred
embodiments, examples and the appended claims.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In its broadest aspect, the compositions of the invention comprise a
bleaching agent, a bleach activator and a selected perfume for masking the
odor of the bleach components. The compositions herein can be in the
form of granules, agglomerates, liquid, gel or a bar. Additionally, the.
compositions can be used as a bleaching composition, fully formulated
detergent composition, or as a bleach or detergent presoak product.
Bleachin~ Svstem
As stated previously, the compositions of the invention must include
a bleaching system comprising a bleaching agent and a bleach activator.
With regard to the relative proportions, the compositions p, t:ferably
comprise from about 0.1% to about 40%, more preferably from about 20% to
about 35%, and most preferably from about 30% to about 35%, by weight of
the peroxygen bleaching agent. Also, the detergent composition comprises
from about 0.1% to about 40%, more preferably from about 5% to about
15%, and most preferably from about 10% to about 15%, by weight of the
bleach activator. Optionally, one or more adjunct bleach activators may be
used in the same amounts.
The peroxygen bleaching agents can be any of those peroxygen
bleaching agents useful for detergent compositions in textile cleaning that
are known or become known. Preferably, the bleaching agent is selected
from the group consisting of percarbonates, perborates, peroxides and
mixtures thereof. While intending not to be limiting, included within this
group are sodium carbonate peroxyhydrate and equivalent "percarbonate"
bleaches, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate,
sodium perborate (e.g. mono- or tetra-hydrate) and sodium peroxide. It
should be understood that other peroxygen bleaches other than those
described herein may be used in the detergent composition without
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departing from the scope of the invention. The most preferred bleaching
agent is sodium percarbonate.
Preferably, the peroxygen bleaching agent used herein is combined
with a bleach activator which leads to the in situ production in aqueous
solution (i.e. during the laundering process) of the peroxy acid
corresponding to the activator. The bleaching mechanism generally, and
the surface bleaching mechanism in particular, in the washing solution are
not completely understood. While not intending to be limited by theory,
however, it is believed that the bleach activator undergoes nucleophilic
attack by a perhydroxide anion, for example from aqueous hydrogen
peroxide, to form a percarboxylic acid. This reaction is commonly
referenced in the art as perhydrolysis.
A second species present in the washing solution is the
diacylperoxide (also referred to herein as "DAP"). It is imperative that some
DAP production is present in order to improve bleaching of specific stains
such as, for example, those stains caused by spaghetti sauce or barbecue
sauce. The peroxyacid acids are particularly useful for removing dingy soils
from textiles. As used herein, "dingy soils" are those which have built up on
textiles after numerous cycles of usage and washing and thus, cause the
white textile to have a gray or yellow tint. Accordingly, the bleaching
mechanism herein preferably produces an effective amount of peroxyacid
and DAP to bleach both dingy stains as well as stains resulting from
spaghetti and the like.
Further, it is believed that bleach activators within the scope of the
invention render the peroxygen bleaches more efficient even at bleach
solution temperatures wherein the bleach activators are not necessary to
activate the bleach, for example at temperatures above 60~C. As a
consequence, less peroxygen bleach is required to obtain the same level of
surface bleaching performance as compared with peroxygen bleach alone.
In a preferred embodiment, the bleach activator used in the granular
detergent composition has the general formula
Il ,
R - C - LG
wherein R is an alkyl group, linear or branched, containing from about 1 to
11 carbon atoms and LG is a suitable leaving group. As used herein, a
'leaving group" is any group that is displaced from the bleach activator as
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consequence of nucleophilic attack on the bleach activator by the
perhydroxide anion, i.e. perhydrolysis reaction.
Generally, a suitable leaving group is electrophilic and is stable such
that the rate of the reverse reaction is negligible. This facilitates the
nucleophilic attack by the perhydroxide anion. The leaving group must also
be sufficiently reactive for the reaction to occur within the optimum time
frame, for example during the wash cycle. However, if the leaving group is
too reactive, the bleach activator will be difficult to stabilize. In the past, it
has been difficult to formulate granular detergent compositions having the
desired stability for a practical shelf-life.
These characteristics are generally paralleled by the PKa ~f the
conjugate acid of the leaving group, although exceptions to this convention
are known. The conjugate acid of the leaving group in accordance with the
present invention preferably has a PKa in a range from about 4 to about 13,
more preferably from about 6 to about 11, and most preferably from about 8
to about 11.
Preferably, the leaving group has the formula
~Y
wherein Y is selected from the group consisting of SO3- M+, COO~ M+,
SO4- M+, PO4- M+, PO3- M+, (N+R23)X- and o~N(R22), M is a cation
and X is an anion, both of which provide solubility to the bleach activator,
and R2 is an alkyl chain containing from about 1 to about 4 carbon atoms or
H. In accordance with the present invention, M is preferably an alkali
metal, with sodium being most preferred. Preferably, X is a hydroxide,
methylsulfate or acetate anion.
Other suitable leaving groups have the following formulas
R3
R3Y
wherein Y is the same as described above and R3 is an alkyl chain
containing from about 1 to about 8 carbon atoms, H or R2.
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While numerous bleach activators as described above are suitable
for use in the detergent composition, the preferred bleach activator has the
general formula
R - C ~ S ~ a
wherein R is an alkyl chain, linear or branched, containing from about 1 to
about 11 carbon atoms. Most preferably, the bleach activator has the
formula
CH3--(CH,)7--C ~S83~a
which is also referred to as sodium n-nonyloxybenzene sulfonate
(hereinafter referred to as "NOBS"). This bleach activator and those
described previously may be readily synthesized by well known reaction
schemes or purchased commercially, neither of which is more prefer,ad.
Those skilled in the art will appreciate that other bleach activators beyond
those described herein which are readily water-soluble can be used in the
compositions of the invention without departing from the scope of the
invention. Another preferred bleach activator is tetra acetyl ethylene
diamine ("TAED").
Various additional nonlimiting examples of bleach activators which
may be used herein are disclosed in Mao et al, U.S. Patent No. 4,915,854,
the disclosure of which is incorporated herein by reference.
Perfume
The compositions of the invention preferably contain from about
0.001% to about 5%, more pl~ferably from about 0.01% to about 2%, and
most preferably from about 0.1% to about 1.0%, by weight of a perfume as
described herein. The formulator has the luxury of choosing from a wide
variety of perfume ingredients in order to arrive at a perfume formulation
with the definition stated previously. Several exemplary perfume
formulations are set forth hereinafter.
As stated previously, the perfume preferably includes at least 25%,
more preferably from about 40% to about 75%, and most preferably from
about 60% to about 70%, by weight of the perfume, of certain aldehydes,
esters, alcohols and mixtures thereof. Suitable aldehydes with molecular
weights greater than 200 AMU, esters with molecular weights greater than
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200 AMU and alcohols with molecular weights between 120 - 160 AMU
include, but are not limited to hexyl cinnamic aldehyde; amyl cinnamic
aldehyde; amyl salicylate; hexyl salicylate; phenyl ethyl alcohol; terpineol;
3,7-dimethyl-cis-2,6-octadien-1-ol; 2,6-dimethyl-2-octanol; 2,6-dimethyl-7-
octen-2-ol; 3,7-dimethyl-3-octanol; 3,7-dimethyl-trans-2, 6-octadien-1-ol;
3,7-dimethyl-6-octen-1-oi; 3,7-dimethyl-1-octanol.
At least about 10%, more preferably from about 15% to about 30%,
and most preferably from about 20% to about 25%, by weight of the
perfume, of the aformentioned aldehydes, esters, alcohols and mixtures
thereof have an Odor Detection Threshold value of less than about 100
parts per trillion. Suitable aldehydes with molecular weights greater than
200 AMU, esters with molecular weights greater than 200 AMU and
alcohols with molecular weights between 120 - 160 AMU having such
measured Odor Detection Threshold (ODT) values include but are not
limited to, benzyl salicylate; 2-methyl-3-(para tert butylphenyl)-
propionaldehyde; 4-(4-hydroxy4-methyl pentyl)-3-cyclohexene-1-
carboxaldehyde; tricyclodecenyl propionate.
The perfume also comprises at least about 1 %, more preferably from
about 5% to about 35%, and most preferably from about 20% to about 25%,
by weight of the perfume, of an adjunct fragrance material with an Odor
Detection Threshold values less than or equal to 100 parts per trillion
include, but are not limited to, tricyclodecenyl acetate; anisaldehyde; 2-
methyl-2-(para-iso-propylphenyl)-propionaldehyde; ethyl 3-methyl-3-phenyl
glycidate; 4-(para-hydroxy phenyl) butan-2-one; 1-(2,6,6-trimethyl-2-
cyclohexen-1-yl)-2-buten-1-one; para methoxy acetophenone; para-
methoxy-alpha-phenyl propene; methyl 2-n-hexyl-3-oxo-cyclopentane
~ carboxylate; undecalactone gamma.
Additional fragrance materials of synthetic or natural origin may be
added to the perfume if desired and include but are not limited to
dodecalactone gamma; methyl 2-(2-pentyl-3-oxo-cyclopentyl) acetate; beta
naphthol methyl ether; methyl beta naphthyl ketone; coumarin; decyl
aldehyde; benzaldehyde; 4-tertiary-butyl cyclohexyl acetate; alpha, alpha-
dimethyl phenethyl acetate; methyl phenyl carbinyl acetate; schiffs base of
4-(4-hydroxy4-methyl pentyl)-3-cyclohexene-1-carboxaldehyde and methyl
anthranilate; cyclic ethylene glycol diester of tridecandioic acid; 3,7-
dimethyl-2,6-octadiene-1-nitrile; ionone gamma methyl; ionone alpha;
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ionone beta; petitgrain; methyl cedrylone; 7-acetyl-1,2,3,4,5,6,7,8-
octahydro-1,1,6,7-tetramethyl naphthalene; ionone methyl; methyl 1,6,10-
trimethyl-2,5,9-cyclododecatrien-1-yl ketone; 7-acetyl-1,1,3,4,4,6- r
hexamethyl tetralin; 4-acetyl-6-tert-butyl-1, 1 -dimethyl indane;
benzophenone; 6-acetyl-1,1,2,3,3,5-hexamethyl indane; 5-acetyl-3-
isopropyl-1, 1 ,2,6-tetramethyl indane; 1 -dodecanal; 7-hydroxy-3,7-dimethyl
octanal; 1 0-undecen-1 -al; iso-hexenyl cyclohexyl carboxaldehyde; formyl
tricyclodecan; cyclopentadecanolide; 1 6-hydroxy-9-hexadecenoic acid
lactone; 1,3,4,6,7,8-hexahydro4,6,6,7,8,8-hexamethylcyclopenta-galllllla-
2-benzopyrane; ambroxane; dodecahydro-3a,6,6,9a-
tetramethylnaphtho[2,1bjfuran; cedrol; 5-(2,2,3-trimethylcyclopent-3-enyl)-
3-methylpentan-2-ol; 2-ethyl4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-
1-ol; caryophyllene alcohol; cedryl acetate; para-tert-butyl cyclohexyL
acetate; patchouli; olibanum resinoid; labdanum; vetivert; copaiba balsam;
fir balsam; and condensation products of: hydroxycitronellal and methyl
anthranilate; hydroxycitronellal and indol; phenyl acetaldehyde and indol; 4-
(4-hydroxy4-methyl pentyl)-3-cyclohexene-1-carboxaldehyde and methyl
anthranilate.
Adiunct Inqredients
A variety of optional adjunct ingredients can be included in the
compositions disclosed herein. The levels of the ingredients will vary
depending upon the context, e.g. Iiquid or granular, bleaching or detergent
composition, etc. The bleaching or granular detergent compositions of the
invention can include a wide variety of additional ingredients typically used
in the art of detergency. For example, the detergent composition can
include from about 1% to about 80%, more preferably from about 5% to
about 20%, and most preferably from about 10% to about 30%, by weight of
a builder.
Generally, the builder can be selected from the various
water-soluble, alkali metal, ammonium or substituted ammonium
phosphates, polyphosphates, phosphonates, polyphosphonates,
carbonates, crystalline layered and amorphous silicates, borates,
polyhydroxy sulfonates, polyacetates, carboxylates, and polycarboxylates.
Preferred are the alkali metal, especially sodium, salts of the above.
Preferred for use herein are the phosphates, carbonates, silicates, C10 18
fatty acids, polycarboxylates, and mixtures thereof. More preferred are
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sodium tripolyphosphate, tetrasodium pyrophosphate, citrate, la~l,aLe mono-
and di-succinates, sodium silicate, and mixtures thereof (see below).
Specific examples of inorganic phosphate builders are sodium and
potassium tripolyphosphate, pyrophosphate, polymeric metaphosphate
having a degree of polymerization of from about 6 to 21, and
orthophosphates. Examples of polyphosphonate builders are the sodium
and potassium salts of ethylene diphosphonic acid, the sodium and
potassium salts of ethane 1-hydroxy-1, 1-diphosphonic acid and the sodium
and potassium salts of ethane, 1,1,2-triphosphonic acid. Other phosphorus
builder compounds are disclosed in U.S. Patents 3,159,581; 3,213,030;
3,422,021; 3,422,137; 3,400,176 and 3,400,148, all of which are
incorporated herein by reference.
Examples of nonphosphorus, inorganic builders are sodium anq
potassium carbonate, bicarbonate, sesquicarbonate, tetraborate
decahydrate, and silicates having a weight ratio of SiO2 to alkali metal
oxide of from about 0.5 to about 4.0, preferably from about 1.0 to about 2.4.
Water-soluble, nonphosphorus organic builders useful herein include the
various alkali metal, ammonium and substituted ammonium polyacetates,
carboxylates, polycarboxylates and polyhydroxy sulfonates. Examples of
polyacetate and polycarboxylate builders are the sodium, potassium,
lithium, ammonium and substituted ammonium salts of ethylene diamine
tetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, mellitic acid,
benzene polycarboxylic acids, and citric acid.
Polymeric polycarboxylate builders are set forth in U.S. Patent
3,308,067, Diehl, issued March 7, 1967, the disclosure of which is
incorporated herein by reference. Such materials include the water-soluble
salts of homo- and copolymers of aliphatic carboxylic acids such as maleic
acid, itaconic acid, mesaconic acid, fumaric acid, aconitic acid, citraconic
acid and methylenemalonic acid. Some of these materials are useful as the
water-soluble anionic polymer as hereinafter described, but only if in
intimate admixture with the non-soap anionic surfactant.
Other suitable polycarboxylates for use herein are the polyacetal
carboxylates described in U.S. Patent 4,144,226, issued March 13, 1979 to
Crutchfield et al, and U.S. Patent 4,246,495, issued March 27, 1979 to
Crutchfield et al, both of which are incorporated herein by reference. These
polyacetal carboxylates can be prepared by bringing together under
polymerization conditions an ester of glyoxylic acid and a polymerization
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12
initiator. The resulting polyacetal carboxylate ester is then attached to
chemically stable end groups to stabilize the polyacetal carboxylate against
rapid depolymerization in alkaline solution, converted to the corresponding
salt, and added to a detergent composition. Particularly ~rt :fer, ed
polycarboxylate builders are the ether carboxylate builder co",posilions
comprising a combination of t~, L,ale monos~ ~ccinate and tartrate disuccinate
described in U.S. Patent 4,663,071, Bush et al., issued May 5, 1987, the
disclosure of which is incorporated herein by reference.
Water-soluble silicate solids represented by the formula SiO2-M2O,
M being an alkali metal, and having a SiO2:M20 weight ratio of from about
0.5 to about 4.0, are useful salts in the compositions of the invention at
levels of from about 0.1% to about 15%, more preferably from about 0.5% to
about 2%, on an anhydrous weight basis. Anhydrous or hydrated
particulate silicate can be utilized, as well.
The detergent composition of the invention optionally can contain
various anionic, nonionic, zwitterionic, etc. surfactants. If used, such
surfactants are typically present at levels of from about 1% to about 50%,
more preferably from about 3% to about 35%, and most preferably from
about 5 % to about 25%, by weight of the composition. Nonlimiting
examples of surfactants useful herein include the conventional C11-C1g
alkyl benzene sulrondles ("LAS") and primary, branched-chain and ra,ldor"
C10-C20 alkyl sulfates ("AS"), the C10-C18 secondary (2,3) alkyl sulfates of
the formula CH3(CH2)x(CHOSO3-M+) CH3 and C H3 (C H2)y(C H OSO3-M+)
CH2CH3 where x and (y + 1 ) are integers of at least about 7, preferably at
least about 9, and M is a water-solubilizing cation, especially sodium,
unsaturated sulfates such as oleyl sulfate, the C10-C18 alkyl alkoxy sulfates
("AExS"; especially EO 0.1-7 ethoxy sulfates), C10-C18 alkyl alkoxy
carboxylates (especially the EO 1-5 ethoxycarboxylates), the C10-18
glycerol ethers, the C10-C18 alkyl polyglycosides and their corresponding
sulfated polyglycosides, and C12-C1g alpha-sulfonated fatty acid esters. If
desired, the conventional nonionic and amphoteric surfactants such as the
C12-C1g alkyl ethoxylates ("AE") including the so-called narrow peaked
alkyl ethoxylates and C6-C12 alkyl phenol alkoxylates (especially
ethoxylates and mixed ethoxylpropoxy), C12-C18 betaines and
sulfobetaines ("sultaines"), C10-C18 amine oxides, and the like, can also be
included in the overall compositions.
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13
The C10-C1g N-alkyl polyhydroxy fatty acid amides can also be
used. Typical examples include the C12-C18 N-methylglucamides. See
WO 9,206,154. Other sugar-derived su, ra~la, llS include the N-alkoxy
polyhydroxy fatty acid amides, such as C10-C1g N-(3-"~ell,oxypropyl)
giucamide. The N-propyl through N-hexyl C12-C1g glucamides can be
used for low sudsing. C10-c20 conventional soaps may also be used. If
high sudsing is desired, the branched-chain C10-C16 soaps may be used.
Mixtures of anionic and nonionic suRactants are especially useful. Other
conventional useful surfactants are listed in standard texts. The C10-C1g
alkyl alkoxy sulfates (''AExS''; especially EO 1-7 ethoxy sulfates) and
C12-C1g alkyl ethoxylates ("AE") are the most preferred for the cellulase-
containing detergents described herein
The detergent composition can also include suds boosters or suds.
suppressers, anti-tarnish and anticorrosion agents, soil suspending agents,
soil release agents, germicides, pH adjusting agents, non-builder alkalinity
sources, chelating agents, smectite clays, enzymes (e.g. cellulases,
proteases, lipases and amylases), and enzyme-stabilizing agents. See
U.S. Patent 3,936,537, issued February 3, 1976 to Baskerville, Jr. et al.,
incorporated herein by reference. A polymeric dispersant such as
polyaspartic acid, may also be included in the detergent composition
disclosed herein.
Chelating agents are also described in U.S. Patent 4,663,071, Bush
et al., from Column 17, line 54 through Column 18, line 68, incorporated
herein by reference. Suds modifiers are also optional ingredients and are
described in U.S. Patents 3,933,672, issued January 20, 1976 to Bartoletta
et al., and 4,136,045, issued January 23, 1979 to Gault et al., both
incorporated herein by reference.
Suitable smectite clays for use herein are described in U.S. Patent
4,762,645, Tucker et al, issued August 9, 1988, Column 6, line 3 through
Column 7, line 24, incorporated herein by reference. Suitable additional
detergency builders for use herein are enumerated in the Baskerville
patent, Column 13, line 54 through Column 16, line 16, and in U.S. Patent
4,663,071, Bush et al, issued May 5, 1987, both incorporated herein by
reference.
Fillers such as sulfates may be included at levels of from about 5%
to about 50%, more preferably from about 10% to about 30%, by weight of
the composition.
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A particularly prerer,ed set of adjunct materials in addition to the
bleaching system and the perfume described above include, by weight: (a)
from about 2% to about 10% of C12-13 linear alkylbenzene sulru, late
surfactant; (b) from about 2% to about 10% of a mixture of C14 15 alkyl
sulfate/alkyl ethoxylate sulfate (EO = 0.35) surfactants; (c) from about 20%
to about 25% of sulfate; (d) from about 10% to about 15% of polyacrylate;
(e) from about 0.3% to about 0.6% of polyethylene glycol; (fl from about
0.2% to about 0.5% of sodium silicate; (9) from about 0.1% to about 0.3%
of diethylene triamine pentamethylene phosphonic acid; (h) from about
0.1% to about 0.5% of amylase enzyme; (i) from about 0.1% to about 0.6%
of protease enzyme; a) from about 10% to about 15% of citric acid; and the
balance water and other minors.
In order to make the present invention more readily understood,
reference is made to the following examples, which are intended to be
illustrative only and not intended to be limiting in scope.
EXAMPLE I
This Example illustrates three perfume formulations in accGrda,lce
with the invention. Specifically, Table I sets forth perfume formulations A, B
and C which are suitable for use in the compositions of the invention.
TABLE I
(% Weiqht)
PERFUME MATERIAL Q B C
hexyl cinnamic aldehyde 13.25 17.30 11.51
amyl cinnamic aldehyde 10.00
amyl salicylate 7.00
hexyl salicylate 5.00
phenyl ethyl alcohol 22.32 9.23 13.44
terpineol 13.84
3,7-dimethyl-cis-2,6-octadien-1-ol 5.00
2,6-dimethyl-2-octanol 2.00
2,6-dimethyl-7-octen-2-ol 8.28 11.53
3,7-dimethyl-3-octanol 6.28
benzyl salicylate 12.30 14.51
2-methyl-3-(para tert butylphenyl)- 7.28
propionaldehyde
-- --
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4-(4-hydroxy-4-methyl pentyl)-3- 4.97
cyclohexene-1 -carboxaldehyde
tricyclodecenyl propionate 9.14
tricyclodecenyl acetate 9.23 9.41
anisaldehyde 6.11
2-methyl-2-(para-iso-propylphenyl)- 1.00
propionaldehyde
ethyl 3-methyl-3-phenyl glycidate 0.27
4-(para-hydroxy phenyl) butan-2-one 0.10
1 -(2,6,6-trimethyl-2-cyclohexen-1 -yl)-2- 0.17 0.12 0.44
buten-1 -one
para methoxy acetophenone 0.58
para-methoxy-alpha-phenyl propene 0.17
methyl 2-n-hexyl-3-oxo-cyclopentane 13.44
carboxylate
undecalactone gamma 1.34
dodecalactone garnma 0.33
methyl 2-(2-pentyl-3-oxo-cyclopentyl) 4.97
acetate
beta naphthol methyl ether 0.28
methyl beta naphthyl ketone 0.20
coumarin 0.10
decyl aldehyde 0.50 0.12
benzaldehyde 0.33
4-tertiary-butyl cyclohexyl acetate 4.97
alpha, alpha-dimethyl phenethyl acetate 8.28
methyl phenyl carbinyl acetate 9.93
schiff's base of 4-(4-hydroxy4-methyl 0.23
pentyl )-3-cyclohexene-1 -
carboxaldehyde and methyl
anthranilate
cyclic ethylene glycol diester of 2.31
tridecandioic acid
3,7-dimethyl-2,6-octadiene-1-nitrile 2.31
ionone gamma methyl 4.61
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ionone alpha 0.54
ionone beta 0.81
petitgrain 4.61
methyl cedrylone 8 06
Total Percent 100.0 100.0 100.0
EXAMPLES ll - IV
These Examples illustrate several compositions within the scope of
the invention and which include the perfume formulations of Example 1.
TABLE ll
(% Weiqht)
Base Granule il 111
lV
C12 13 linearalkylbenzene sulfonate, Na 3.7 3.7 . 3.7
C14 15 alkyl sulfate/alkyl ethoxylate 3.0 3.0 3.0
(EO=0.35) sulfate
Sulfate 3.0 3.0 3.0
Polyacrylate, Na (M.W. = 1400) 10.7 10.7 10.7
Polyethylene glycol (M.W. = 4000) 0.5 0.5 0.5
Sodium silicate 0.4 0.4 0.4
DTPA1 0.2 0.2 0.2
Brightener 0.2 0.2 0.2
Admix/Spray-on
TAED2 5 5 5 5 5 5
N o BS3 6.2 6.2 6.2
Sodium percarbonate 31.9 31.9 31.9
Amylase enzyme 0.3 0.3 0.3
Protease enzyme 0.5 0.5 0 5
Citric acid 10.3 10.3 10.3
Perfume A 0 5
Perfume B - 0 5
Perfume C - ~ 0 5
Waterand otherminors balance balance balanc
=e,
100.0 100.0 100.0
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1 diethylene triamine pertamethylene phosphonic acid
2tetra acetyl ethylene diamine
3n-nonyloxybenzene sulfonate
The compositions set forth in Table ll are made by conventional
detergent processing techniques. In particular, the base granule
ingredients are mixed together as a slurry and spray dried in a tower to
produce granules. The dry ingredients are then admixed with the granules
and the liquid ingredients are spray thereon to provide the finished
composition. Alternatively, various liquid and dry ingredients can be
agglomerated to provide high density agglomerates to which the remaining
ingredients can be sprayed on or admixed as appropriate.
EXAMPLES V - X
These Examples illustrate several compositions within the scope of the
invention.
TABLE lll
(% Weiqht)
Base Granule V Vl Vll Vlll IX X
C12 13 linear alkylbenzene 5.8 6.4 5.8 5.8 6.4 6.4
sulfonate, Na
C14 15 alkylsulfate/alkyl 4.8 5.2 4.8 4.8 5.2 5.2
ethoxylate(EO=0.35)
sulfate
Sulfate 15.1 16.5 15.1 15.1 16.5 16.5
Aluminosilicate 16.4 17.9 16.4 16.4 17.9 17.9
Polyacrylate, Na (M.W. = 1.8 1.9 1.8 1.8 1.9 1.9
1400)
Polyethylene glycol (M.W. 0.8 0.8 0.8 0.8 0.8 0.8
= 4000)
Sodium carbonate 6.8 7.4 6.8 6.8 7.4 7.4
Sodium silicate 0.4 0.5 0.4 0.4 0.5 0.5
DTPA1 0.3 0.3 0.3 0.3 0.3 0.3
Brightener 0.3 0.3 0.3 0.3 0.3 0.3
AdmixJSprav-on
Sodium perborate 6.8 7.4 6.8 6.8 7.4 7.4
NOBS2 11.5 12.6 11.5 11.5 12.6 12.6
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Amylase enzyme 0.1 0.1 0.1 0.1 0.1 0.1
Protease enzyme 0.4 0.5 0.4 0.4 0.5 0.5
Citric acid 8.4 - 8.4 8.4
DTPA1 0.2 0.3 0.2 0.2 0.3 0.3
Brightener 0.5 0.5 0.5 0.5 0.5 0.5
Sodium Carbonate 12.2 13.3 12.2 12.2 13.3 13.3
Nonionic3 0.5 0.5 0.5 0.5 0.5 0.5
Perfume A 0.3 0.3
Perfume B - - 0.3 - 0.3
Perfume C - - - 0 3 - 0 3
Water and other minors 6 6 7 3 6 6 6 6 7 3 7 3
100.0 100.0 100. 100. 100. 100.
O O O O
1 diethylene triamine pentamethylene phosphonic acid
2n-nonyloxybenzene sulfonate
3Neodol (23-9) commercially available from Shell Chemical Co.
The compositions set forth in Table lll are made in accordance with
the processes described with respect to Examples Il-IV hereinabove.
Having thus described the invention in detail, it will be clear to those
skilled in the art that various changes may be made without departing from
the scope of the invention and the invention is not to be considered limited
to what is described in the specification.
What is claimed is:
