U.S. patent application number 09/726577 was filed with the patent office on 2001-10-25 for surfactant composition.
Invention is credited to Fujiu, Akira, Kubo, Makoto, Sakai, Takaya, Tetsu, Makio.
Application Number | 20010034310 09/726577 |
Document ID | / |
Family ID | 18347734 |
Filed Date | 2001-10-25 |
United States Patent
Application |
20010034310 |
Kind Code |
A1 |
Sakai, Takaya ; et
al. |
October 25, 2001 |
Surfactant composition
Abstract
There is provided a surfactant composition for detergents, which
has its high detergency and foamability within a broad pH region
even in the presence of solids. It has its excellent foamability,
thickening property, water solubility and stability. The
composition contains a component (a) represented by the following
formula (I) and at least one component (b) represented by the
formulae (II) and (III), in the total amount of 0.1 to 80% by
weight, at the ratio of (a)/(b) by weight of from 99.9/0.1 to
70/30. 1 In the formula (I), R.sup.1CO-- is a saturated or
unsaturated acyl group which has 6 to 24 carbon atoms and which may
have hydroxy group; R.sup.2 is a linear or branched alkyl group
having 1 to 3 carbon atoms; and R.sup.3 is a linear or branched
alkylene or alkenylene group having 1 to 6 carbon atoms. 2 In the
formulae (II) and (III), R.sup.1CO--, R.sup.2 and R.sup.3 have the
same meanings as above and R.sup.4CO-- is a saturated or
unsaturated acyl group which has 6 to 24 carbon atoms and which may
have a hydroxy group. The composition may also contain a surfactant
other than the above-mentioned components (a) and (b).
Inventors: |
Sakai, Takaya; (Wakayama,
JP) ; Tetsu, Makio; (Wakayama, JP) ; Kubo,
Makoto; (Wakayama, JP) ; Fujiu, Akira;
(Wakayama, JP) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
18347734 |
Appl. No.: |
09/726577 |
Filed: |
April 12, 2001 |
Current U.S.
Class: |
510/119 ;
510/122; 510/123; 510/124; 510/125 |
Current CPC
Class: |
C11D 1/523 20130101;
A61Q 19/10 20130101; C11D 1/645 20130101; A61Q 5/02 20130101; C11D
1/46 20130101; A61K 8/42 20130101; C11D 3/2065 20130101; A61K 8/44
20130101; C11D 1/528 20130101 |
Class at
Publication: |
510/119 ;
510/122; 510/123; 510/124; 510/125 |
International
Class: |
A61K 007/075 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 1, 1999 |
JP |
11-341649 |
Claims
1. A surfactant composition containing a component (a) represented
by the following formula (I) and at least one component (b)
represented by the formulae (II) and (III), in their total amount
of 0.1 to 80% by weight, at the ratio of (a)/(b) by weight of from
99.9/0.1 to 70/30; 5wherein R.sup.1CO-- is a saturated or
unsaturated acyl group which has 6 to 24 carbon atoms and which may
have a hydroxy group; R.sup.2 is a linear or branched alkyl group
having 1 to 3 carbon atoms; and R.sup.3 is a linear or branched
alkylene group having 1 to 6 carbon atoms or alkenylene group
having 2 to 6 carbon atoms; 6wherein R.sup.1CO--, R.sup.2 and
R.sup.3 have the same meanings as above and R.sup.4CO-- is a
saturated or unsaturated acyl group which has 6 to 24 carbon atoms
and which may have a hydroxy group.
2. The composition as claimed in claim 1, which comprises a
surfactant other than the above-mentioned components (a) and
(b).
3. The composition as claimed in claim 1 or 2, wherein the ratio of
the component (a) to the component (b), namely (a) /(b), by weight
is from 99.99/0.01 to 80/20.
4. The composition as claimed in claim 1 or 2, wherein the blending
ratios of the compounds (I), (III) and (II) to their total amount
are 80 to 99.99% by weight of the compound (I), 0.01 to 20% by
weight of the compound (III) and 0 to 5% by weight of the compound
(II).
5. The composition as claimed in claim 2, wherein the ratio of the
blending amount of the components (a) and (b) in total to the
compounding amount of the surfactant other than the components (a)
and (b) is from 0.5/99.5 to 50/50 by weight.
6. The composition as claimed in claim 1 or 2, which comprises
glycerol as an essential component which is contained in an amount
of 20% by weight or less as compared with the sum of the total
amount of the components (a) and (b) and the amount of the
surfactant other than the components (a) and (b).
7. The composition as claimed in claim 2, which comprises glycerol
an essential component in an amount of 20% by weight or less as
compared with the sum of the total amount of the components (a) and
(b) and the amount of the surfactant other than the components (a)
and (b), provided that the ratio of the blending amount of the
components (a) and (b) and glycerol in total to the blending amount
of the surfactant other than the components (a) and (b) is from
0.5/99.5 to 50/50 by weight.
Description
TECHNICAL FIELD OF THE INVENTION
[0001] The present invention relates to a surfactant composition
for detergents having an excellent detergency to an oily stain and
an abundant foamability. It has its excellent foamability,
thickening property, water solubility and stability.
PRIOR ART
[0002] Not only a high detergency but also an abundant foaming are
requested to a detergent such as a shampoo, a rinse, a solid soap,
a body shampoo, a detergent for kitchens, a detergent for clothing
and a detergent for dwellings. One which has been widely used as a
main base in many products is an anionic surfactant such as an
alkyl benzenesulfonate, an alkyl sulfate salt, a polyoxyethylene
alkyl sulfate salt and an alkyl phosphate salt. However, although
any thereof usually shows its excellent detergency and foaming,
there is a problem therein that, when solids, a stain derived from
silicone or the like is present, the detergency and foamability
significantly lower.
[0003] In order to improve such a lowering in detergency and/or
foamability, various co-surfactants besides the main base have been
investigated. There have been first proposed a fatty acid
diethanolamide which has been actually and widely used in the
products and then proposed in recent years a fatty acid
monoethanolamide (WO 98/00507, WO 97/44434, JP-A 11-80785, etc.), a
nonionic surfactant based on a sugar amide (WO 94/12610), an
acylated sarcosine (WO 96/06596), etc.
[0004] However, although these detergent compositions are improved
in detergency and foamability, they are not well satisfactory yet.
Moreover, since the detergents described above directly contact
with the skin daily, they are demanded to exhibit a high
performance at a weakly acidic pH region which is mild to the skin.
However, in the conventional surfactant system, there has been
mentioned such a problem that, even when the foaming is good in
from neutral to basic regions, foaming does not take place at all
in an acidic region.
DISCLOSURE OF THE INVENTION
[0005] An object of the present invention is to provide a
surfactant composition which has its high detergency and
foamability within a broad pH region even in the presence of
solids. It has its excellent foamability, thickening property,
water solubility and stability even under the above-mentioned
condition. It is useful as a detergent.
[0006] The present invention is a surfactant composition comprising
a component (a) represented by the following formula (I) and at
least one component (b) represented by the formulae (II) and (III),
in the total amount of 0.1 to 80% by weight, at the ratio of
(a)/(b) by weight of from 99.9/0.1 to 70/30. 3
[0007] In the formula (I), R.sup.1CO-- is a saturated or
unsaturated acyl group which has 6 to 24 carbon atoms and which may
have a hydroxy group; R.sup.2 is a linear or branched alkyl group
having 1 to 3 carbon atoms; and R.sup.3 is a linear or branched
alkylene group having 1 to 6 carbon atoms or alkenylene group
having 2 to 6 carbon atoms. 4
[0008] In the formulae (II) and (III), R.sup.1CO--, R.sup.2 and
R.sup.3 have the same meanings as above and R.sup.4CO-- is a
saturated or unsaturated acyl group which has 6 to 24 carbon atoms
and which may have a hydroxy group.
[0009] The composition preferably comprises a surfactant other than
the above-mentioned components (a) and (b).
[0010] It is also preferable that the ratio of the component (a) to
the component (b), namely (a)/(b), by weight is from 99.99/0.01 to
80/20.
[0011] It is, further, preferable that the blending ratios of the
compounds (I), (III) and (II) to their total amount are 80 to
99.99% by weight of the compound (I), 0.01 to 20% by weight of the
compound (III) and 0 to 5% by weight of the compound (II).
[0012] The ratio of the blending amount of the components (a) and
(b) in total to the blending amount of the surfactant other than
the components (a) and (b) may be from 0.5/99.5 to 50/50 by
weight.
[0013] The composition of the present invention may comprises
glycerol as an essential component in an amount of 20% by weight or
less as compared with the sum of the total amount of the components
(a) and (b) and the amount of the surfactant other than the
components (a) and (b).
[0014] The composition may comprise glycerol as an essential
component in an amount of 20% by weight or less as compared with
the sum of the total amount of the components (a) and (b) and the
amount of the surfactant other than the components (a) and (b),
provided that the ratio of the blending amount of the components
(a) and (b) and glycerol in total to the blending amount of the
surfactant other than the components (a) and (b) is from 0.5/99.5
to 50/50 by weight.
DETAILED DESCRIPTION OF THE INVENTION
[0015] In the component (a) of the present invention, R.sup.1CO--
is an acyl group as mentioned above. A saturated or unsaturated
acyl group having 8 to 18 carbon atoms is preferable. Among such an
acyl group, one containing not less than 50% by weight of a fatty
acid residue having 12 to 14 carbon atoms is preferable. Further,
one in which a fatty acid residue having 12 carbon atoms is from
not less than 40% by weight to less than 100% by weight is more
preferable. Specific examples include acyl groups derived from
octanoic acid, decanoic acid, dodecanoic acid, tetradecanoic acid,
hexadecanoic acid, octadecanoic acid, docosanoic acid, linoleic
acid, 2-ethylhexanoic acid, 2-octylundecanoic acid, isostearic
acid, oleic acid, a coconut-fatty acid, a palm oil-fatty acid, a
palm kernel oil-fatty acid, a beef tallow-fatty acid, etc. There
are particularly preferable acyl groups derived from octanoic acid,
decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic
acid, octadecanoic acid, oleic acid, the coco-fatty acid, the palm
oil-fatty acid, the palm kernel oil-fatty acid and the beef
tallow-fatty acid.
[0016] In order not to lower the foamability, R.sup.2 is a linear
or branched alkyl group having 1 to 3 carbon atoms, preferably
methyl group or ethyl group and particularly preferably methyl
group. In addition, in order not to lower the surface-active
performance, R.sup.3 is a linear or branched alkylene or alkenylene
group having 1 to 6 carbon atoms and preferably a linear or
branched alkylene group having 2 or 3 carbon atoms.
[0017] Specific examples of the component (a), for instance,
include N-(2-hydroxyethyl)-N-methyl octanamide,
N-(2-hydroxyethyl)-N-methyl decanamide, N-(2-hydroxyethyl)-N-methyl
dodecanamide, N-(2-hydroxyethyl)-N-methyl tertadecanamide,
N-(2-hydroxyethyl)-N-methyl hexadecanamide,
N-(2-hydroxyethyl)-N-methyl octadecanamide,
N-(2-hydroxyethyl)-N-methyl-coco-fatty carboxamide,
N--(2-hydroxyethyl)-N-methyl-palm kernel oil-fatty carboxamide,
N-ethyl-N-(2-hydroxypropyl)dodecanamide,
N-ethyl-N-(2-hydroxypropyl)oleam- ide and
N-ethyl-N-(2-hydroxypropyl)isostearamide.
[0018] A method for producing the component (a) is not particularly
limited. For example, it can be produced by a condensation reaction
of a fatty acid or a fatty acid lower alcohol ester with an
alkanolamine, by a reaction of a fatty acid halide with an
alkanolamine in the presence of an alkaline catalyst, by an
aminolysis of esters and an alkanolamine, or by the like. The
product obtained by such a method often contains small amount of a
fatty acid, an inorganic salt, glycerol and the like, but they does
not affect the performances at all.
[0019] The component (b) is selected from the compounds represented
by the above-mentioned formulae (II) and (III). However, it is not
necessary to be single and two or more members may be mixed
therein. R.sup.1CO--, R.sup.2 and R.sup.3 in the formulae (II) and
(III) have the same meanings as those in the formula (I). In each
of the compounds, R.sup.1, R.sup.2 and R.sup.3 may be same as or
different from each other.
[0020] R.sup.4CO-- is a saturated or unsaturated acyl group which
has 6 to 24 carbon atoms, preferably 8 to 18 carbon atoms, and
which may have a hydroxy group. R.sup.1CO-- and R.sup.4CO-- may be
the same or different. Specific examples and preferable ones for
R.sup.4CO-- include those mentioned hereinabove for
R.sup.1CO--.
[0021] Specific examples of the compound represented by the formula
(II), for instance, include 2-(methylamino)ethyl octanoate,
2-(methylamino)ethyl decanoate, 2-(methylamino)-ethyl dodecanoate,
2-(methylamino)ethyl tetradecanoate, 2-(methylamino)ethyl
hexadecanoate, 2-(methylamino)ethyl octadecanoate,
2-(methylamino)ethyl oleate, 2-(ethylamino)ethyl octanoate,
2-(ethylamino)ethyl dodecanoate, 2-(ethylamino)ethyl
tetradecanoate, 2-(ethylamino)ethyl hexadecanoate,
2-(ethylamino)ethyl octadecanoate, 2-(ethylamino)ethyl oleate,
2-(methylamino)propyl octanoate, 2-(methylamino)propyl decanoate,
2-(methylamino)propyl dodecanoate, 2-(methylamino)propyl
tetradecanoate, 2-(methylamino)propyl hexadecanoate,
2-(methylamino)propyl octadecanoate, 2-(methylamino)propyl oleate
and a (2-methylaminoethyl) coco-fatty carboxylate.
[0022] Further, (2-methylaminoethyl) coco-fatty carboxylate,
(2-methylaminoethyl) palm kernel oil-fatty carboxylate and the like
are also included in (II).
[0023] Specific examples of the compound represented by the formula
(III), for instance, include N-octanoyl-N-methylaminoethyl
octanoate, N-octanoyl-N-methylaminoethyl decanoate,
N-octanoyl-N-[2(methylamino)ethy- l] dodecanoate, N-octanoyl
N-[2-(methylamino)ethyl] tetradecanoate,
N-octanoyl-N-[2-(methylamino)ethyl] hexadecanoate,
N-octanoyl-N-[2-(methylamino)ethyl] octadecanoate,
N-dodecanoyl-N-[2-(methylamino)ethyl] octanoate,
N-dodecanoyl-N-[2-(methy- lamino)ethyl] decanoate,
N-dodecanoyl-N-[2-(methylamino)ethyl] dodecanoate,
N-dodecanoyl-N-[2-(methylamino)ethyl] tetradecanoate,
N-dodecanoyl-N-[2-(methylamino)ethyl] hexadecanoate,
N-dodecanoyl-N-[2-(methylamino)ethyl] octadecanoate,
N-dodecanoyl-N-[6-(methylamino)hexyl] octanoate,
N-dodecanoyl-N-[6-(ethyl- amino)hexyl] decanoate,
N-dodecanoyl-N-[6-(ethylamino)hexyl] dodecanoate,
N-dodecanoyl-N-[6-(ethylamino)hexyl] tetradecanoate,
N-dodecanoyl-N-[6-(ethylamino)hexyl] hexadecanoate,
N-dodecanoyl-N-[6-(ethylamino)hexyl] octadecanoate, an
(N-cocoyl-N-methylaminoethyl) coco-fatty carboxylate and an (N-palm
kerneloyl-N-methylaminoethyl) palm kernel-fatty carboxylate.
[0024] The total amount of the components (a) and (b) in the
composition of the present invention is 0.1 to 80% by weight and
preferably 0.1 to 10% by weight in view of water solubility,
stability of the product and foamability.
[0025] Further, the blending ratio of the component (a) to the
component (b), namely (a)/(b), by weight is from 99.9/0.1 to 70/30,
preferably from 98/2 to 70/30, more preferably from 98/2 to 90/10
and most preferably from 98/2 to 95/5 in view of water solubility,
stability of the product and foamability.
[0026] The blending ratio of the component (a) to the component
(b), namely (a)/(b), by weight in the composition of the present
invention may be from 99.99/0.01 to 80/20 and preferably from 98/2
to 90/10 in view of foamability, thickening property and
stability.
[0027] The composition of the present invention, comprising the
components (a) and (b), has its high detergency and foamability
and, if it further comprises a surfactant other than the components
(a) and (b), the detergency and foamability are able to be further
improved due to a synergism.
[0028] With regard to the blending ratio of the compounds (I),
(III) and (II) in the composition of the present invention to their
total amounts, the compound (I) is preferably 80 to 99.99% by
weight and more preferably 90 to 98% by weight, the compound (III)
is preferably 0.01 to 20% by weight and more preferably 2 to 10% by
weight, and the compound (II) is preferably 0 to 5% by weight in
view of obtaining a good surface-active performance.
[0029] In the surfactant composition of the present invention, very
high foamability and thickening performance are exhibited when the
components (a) and (b) are used together with a surfactant other
than the components (a) and (b) (hereinafter, referred to as "other
surfactant"). The total amount of the components (a) and (b) in the
surfactant composition of the present invention can be optionally
selected depending upon characters of the other surfactant.
Further, in view of water solubility, stability, foamability and
thickening property, the ratio of the blending amount of the
components (a) and (b) in total to the blending amount of the other
surfactant is preferably from 0.5/99.5 to 50/50 by weight.
[0030] The surfactant which can be used together is not
particularly limited. For example, it may be one or more selected
from an anionic surfactant such as a soap, an alkyl sulfate, a
polyoxyethylene alkyl sulfate, an alkyl phosphate salt, a
polyoxyethylene alkyl phosphate and an alkyl benzenesulfonate; a
cationic surfactant such as an alkyltrimethylammonium salt, a
dialkyldimethylammonium salt, an alkyldimethylbenzalkonium salt, an
alkyl dimethylamine oxide and an amidopropyl dimethylamine oxide;
an amphoteric surfactant such as an amidopropyl
dimethylcarbobetaine, an alkyl dimethylcarbobetaine and an alkyl
dimethylhydroxysulfobetaine; and a nonionic surfactant such as a
polyoxyethylene alkyl ether and an alkyl polyglucoside. Among them,
at least one is preferably an anionic, cationic or amphoteric
surfactant and, at least one anionic surfactant is particularly
preferably co-present.
[0031] Particularly preferably, the other surfactant may be one or
more selected from a sulfate-based or sulfonate-based surfactant
such as an alkyl sulfate, a polyoxyethylene alkyl sulfate and an
alkylbenzene sulfonate; an amine oxide such as an alkyldimethyl
amine oxide and amidopropyldimethyl amine oxide; an amide
group-containing betaine such as amidopropyl dimethylcarbobetaine;
etc. One thereamong or two or more thereamong can be used and it is
preferable that one or more sulfate-based surfactants are
co-present.
[0032] In the composition of the present invention, the ratio by
weight of the components (a) and (b) to the other surfactant,
namely [components (a) and (b)]/[other surfactant], when the
components are used together with the surfactants is preferably
from 1/10 to 10/10 and more preferably from 1/10 to 1/3, in view of
a synergism of detergent performance and foamability.
[0033] The surfactant composition of the present invention can be
more improved in its viscosity, by that glycerol is further
contained. The amount of glycerol to the sum of the total amount of
the components (a) and (b) and the amount of the surfactant other
than the components (a) and (b) is preferably not more than 20% by
weight and more preferably from 0.01 to 15% by weight. When
glycerol is contained, the ratio of the blending amount of the
components (a) and (b) in total and glycerol to the blending amount
of the other surfactant is preferably from 0.5/99.5 to 50/50 and
more preferably from 1/99 to 25/75 by weight.
[0034] The detergent composition of the present invention can
exhibit the particularly preferable performance when the pH range
is from 4.0 to 11.0.
[0035] The surfactant composition of the present invention can
exhibit the particularly preferable performance such as foamability
and thickening property and is useful as a base for a detergent,
when the pH range is from 4.0 to 11.0.
[0036] Use of the detergent composition of the present invention is
not particularly limited and, for example, it is useful as a
detergent such as a shampoo, a solid soap, a body shampoo, a
detergent for kitchens, a detergent for clothing and a detergent
for dwellings. For such use, the composition may be optionally
blended with the other detergent component, a moisturizing
component, an oil component, various pharmaceutical components, a
preservative, a germicide, a sequestering agent, an antioxidant, a
UV absorber, a perfume, a dye or the like which is essential for
the product design. Further, the form of the product may be in any
form such as liquid, solid, paste, cream and lotion (or
emulsion).
EXAMPLES
Examples {circle over (1)}-1 to {circle over (1)}-9 and Comparative
Examples {circle over (1)}-1 to {circle over (1)}-2
[0037] The components as shown below were used, various detergent
compositions having the formulations as shown in Table {circle over
(1)}-1 were prepared and their detergency were evaluated by the
following methods. The results are shown in Table {circle over
(1)}-1.
Components
[0038] Component (a)
[0039] Compound {circle over (1)}-1: N-(2-Hydroxyethyl)-N-methyl
lauramide
[0040] Compound {circle over (1)}-2: N-(2-Hydroxyethyl)-N-methyl
coco-fatty carboxamide
[0041] Compound {circle over (1)}-3: N-(2-Hydroxyethyl)-N-methyl
palm kernel oil-fatty carboxamide
[0042] Component (b)
[0043] Compound {circle over (1)}-4: 2-(Methylamino)ethyl
laurate
[0044] Compound {circle over (1)}-5: (2-Ethylaminoethyl) coco-fatty
carboxylate
[0045] Compound {circle over (1)}-6: (2-Ethylaminoethyl) palm
kernel-fatty carboxylate
[0046] Compound {circle over (1)}-7: N-Lauroyl-N-methylaminoethyl
laurate
[0047] Compound {circle over (1)}-8: (N-Cocoyl-N-methylaminoethyl)
coco-fatty carboxylate
[0048] Compound {circle over (1)}-9: (N-palm
kerneloyl-N-methylaminoethyl) palm kernel-fatty carboxylate
[0049] Other Surfactants
[0050] LAS: Sodium long-chain alkyl(C.sub.12) benzenesulfonate
[0051] AS: Sodium laurylsulfate
[0052] AES: Sodium polyoxyethylene(3) laurylsulfate
[0053] AE: Polyoxyethylene(6) lauryl ether
[0054] LDMAO: Long-chain alkyl(C.sub.12) dimethylamine oxide
[0055] Other Components
[0056] Polyacrylic acid: average molecular weight of 10,000
[0057] AM: Sodium salt of a copolymer of acrylic acid/maleic acid
(molar ratio of 7/3), average molecular weight of 70,000
[0058] Zeolite: Crystalline aluminosilicate,
M.sub.2O.multidot.Al.sub.2O.s-
ub.3.multidot.2SiO.sub.2.multidot.2H.sub.2O, average particle
diameter of 2 .mu.m, ion-exchange capacity of 290 CaCO.sub.3
mg/g
[0059] Common components: Comprising 0.5% by weight of a
fluorescent component, 2.0% by weight of a mixed enzymatic
component comprising SAVINASE.RTM. 12.0 T type W (supplied by Novo
Nordisk A/S), KAC-500G (supplied by Kao Corp.) and Termamyl 60T
(supplied by Novo Nordisk A/S) at the ratio of 2:1:1 and Glauber's
salt and being prepared so as to make the total amount of the
composition 100% by weight by addition of the Glauber's salt.
Method for Evaluating the Detergency
[0060] (1) Preparation of an Artificially Stained Cloth
[0061] An artificial stain solution having the following
composition was adhered to cloth to prepare an artificially stained
cloth. Adhesion of the artificial stain solution to the cloth was
carried out using a gravure roll coater. A step for producing the
artificially stained cloth by adhering the artificial stain
solution to the cloth was carried out under the condition that the
cell capacity of the gravure roll was 58 cm.sup.3/m.sup.2, the
coating rate of 1.0 m/minute, drying at 100.degree. C. and drying
time of 1 minute. The cloth used was cotton shirting cloth #2003
(supplied by TANIGASHIRA SHOTEN).
[0062] Composition of the Artificial Stain Solution
1 Composition of the artificial stain solution Lauric acid 0.44% by
weight Myristic acid 3.09% by weight Pentadecanoic acid 2.31% by
weight Palmitic acid 6.18% by weight Heptadecanoic acid 0.44% by
weight Stearic acid 1.57% by weight Oleic acid 7.75% by weight
Triolein 13.06% by weight n-Hexadecyl palmitate 2.18% by weight
Squalene 6.53% by weight Liquid crystal of albumen lecithin 1.94%
by weight Kanuma aka-tsuchi (red soil) 8.11% by weight Carbon black
0.01% by weight Tap water Balance
[0063] (2) Washing Condition and the Evaluating Method
[0064] The detergent composition was dissolved in 4.degree. DH hard
water to prepare a 0.06% aqueous solution. 5 sheets of the
above-produced artificially stained cloth having the area of 10
cm.times.10 cm were placed into 1 liter of the prepared aqueous
detergent solution and washed at 100 rpm using a Terg-O-Tometer.
The washing condition was as follows.
[0065] Washing Condition
[0066] Washing time 10 minutes
[0067] Concentration of the composition to be evaluated 0.067%
[0068] Temperature of solution 10.degree. C.
[0069] Rinsing With tap water for 5 minutes
[0070] With regard to the detergency, reflectance at 550 nm of the
unstained initial cloth and those of the stained cloth before and
after washing were measured by a recording color meter (supplied by
Shimadzu Corporation), then a detergent ratio (%) was calculated by
the following formula. The mean value thereof for the 5 sheets was
made as detergency. 1 Detergent ratio ( % ) = Reflectance after
washing - Reflectance before washing Reflectance of the initial
cloth - Reflectance before washing .times. 100
2 TABLE {circle over (1)}-1 Comparative Example Example {circle
over (1)}-1 {circle over (1)}-2 {circle over (1)}-3 {circle over
(1)}-4 {circle over (1)}-5 {circle over (1)}-6 {circle over (1)}-7
{circle over (1)}-8 {circle over (1)}-9 {circle over (1)}-1 {circle
over (1)}-2 Detergent Component Compound 0.96 0.95 0.90 1.80 3.10
0.95 composition (a) {circle over (1)}-1 (% by weight) Compound
0.95 {circle over (1)}-2 Compound 0.95 0.95 {circle over (1)}-3
Component Compound 0.04 0.03 0.05 0.13 0.40 0.03 (b) {circle over
(1)}-4 Compound 0.03 {circle over (1)}-5 Compound 0.03 0.03 {circle
over (1)}-6 Compound 0.02 0.05 0.07 0.50 0.02 {circle over (1)}-7
Compound 0.02 {circle over (1)}-8 Compound 0.02 0.02 {circle over
(1)}-9 Other LAS 19 19 19 18 16 19 19 20 surfactant AS 9 9 10 AES
10 10 10 AE 5 5 5 5 5 5 5 5 LDMAO 5 5 5 Polyacrylic acid 2.5 2.5
2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 AM 2.5 2.5 2.5 2.5 2.5 2.5 2.5
2.5 2.5 2.5 2.5 Sodium sulfite 1 1 1 1 1 1 1 1 1 1 1 Potassium
carbonate 4 4 4 4 4 4 4 4 4 4 4 Sodium carbonate 15 15 15 15 15 15
15 15 15 15 15 Sodium silicate 10 10 10 10 10 10 10 10 10 10 10
Zeolite 20 20 20 20 20 20 20 20 20 20 20 Common components balance
balance balance balance balance balance balance balance balance
balance balance Detergent ratio (%) 57.3 58.3 59.1 59.8 54.5 54.8
57.6 55.3 55.6 50.1 48.5
Examples {circle over (1)}-10 to {circle over (1)}-16 and
Comparative Examples {circle over (1)}-3 to {circle over (1)}-7
[0071] Various detergent compositions having the formulations as
shown in Table {circle over (1)}-2 were prepared using the
following components and their foamabilities were evaluated by the
following method. The results are shown in Table {circle over
(1)}-2.
[0072] <Components>
[0073] Compounds {circle over (1)}-1 to {circle over (1)}-9, AES
and LDMAO have the same meanings as in Table {circle over
(1)}-1.
[0074] LAPB: Lauroylamidopropyl dimethylcarbobetaine
[0075] DEA: Lauroyl diethanolamide
[0076] MEA: Lauroyl monoethanolamide
[0077] <Method for evaluating the foamability {circle over
(1)}>
[0078] 30 mL of an aqueous solution in which a detergent
composition was diluted with deionized water to 20-fold were
prepared and the pH was adjusted using citric acid. The aqueous
solution was placed in a 300-mL messcylinder having an inner
diameter of 3 cm equipped with a stop cock and shaken at 25.degree.
C. for 10 seconds with an amplitude of 10 cm for 20 times and the
foam volume (mL) immediately thereafter and that after 5 minutes
were measured. From the foam volume immediately thereafter, the
foaming speed was evaluated while, from the foam volume after 5
minutes, the foaming sustentation-property was evaluated.
3 TABLE {circle over (1)}-2 Example {circle over (1)}-10 {circle
over (1)}-11 {circle over (1)}-12 {circle over (1)}-13 {circle over
(1)}-14 {circle over (1)}-15 {circle over (1)}-16 Detergent
Component Compound {circle over (1)}-1 0.18 0.36 0.90 0.90 2.70
composition (a) Compound {circle over (1)}-2 0.90 (% by weight)
Compound {circle over (1)}-3 0.90 Component Compound {circle over
(1)}-4 0.02 0.03 0.06 0.06 0.18 (b) Compound {circle over (1)}-5
0.06 Compound {circle over (1)}-6 0.06 Compound {circle over (1)}-7
0.01 0.04 0.04 0.12 Compound {circle over (1)}-8 0.04 Compound
{circle over (1)}-9 0.04 Other AES 11.0 11.0 11.0 9.5 9.5 9.5 9.5
surfactant LAPB 4.0 4.0 4.0 LDMAO 5.5 5.5 5.5 5.5 DEA MEA pH 6.0
6.0 6.0 7.5 7.5 7.5 7.5 Foam Immediately 237 259 275 259 256 249
264 volume thereafter (ml) 5 minutes thereafter 220 243 267 251 236
241 256 Comparative Example {circle over (1)}-3 {circle over (1)}-4
{circle over (1)}-5 {circle over (1)}-6 {circle over (1)}-7
Detergent Component Compound {circle over (1)}-1 0.60 composition
(a) Compound {circle over (1)}-2 Compound {circle over (1)}-3
Component Compound {circle over (1)}-4 0.30 (b) Compound {circle
over (1)}-5 Compound {circle over (1)}-6 Compound {circle over
(1)}-7 0.10 Compound {circle over (1)}-8 Compound {circle over
(1)}-9 Other AES 11.0 11.0 9.5 9.5 11.0 surfactant LAPB 4.0 4.0 4.0
LDMAO 5.5 5.5 DEA 1.0 MEA 1.0 pH 6.0 6.0 7.5 7.5 6.0 Foam
Immediately 193 216 231 237 191 volume thereafter (ml) 5 minutes
thereafter 183 177 189 190 180
Comparative Example {circle over (2)}-5
[0079] Various surfactant compositions having the formulations as
shown in Table {circle over (2)}-1 were prepared using the
following components and their foamabilities were evaluated by the
following method. The results are shown in Table {circle over
(2)}-1
[0080] <Components>
[0081] Component (a)
[0082] Compound {circle over (2)}-1: Same as the above-mentioned
compound {circle over (1)}-1
[0083] Compound {circle over (2)}-2: Same as the above-mentioned
compound {circle over (1)}-2
[0084] Compound {circle over (2)}-3: Same as the above-mentioned
compound {circle over (1)}-3
[0085] Component (b)
[0086] Compound {circle over (2)}-4: Same as the above-mentioned
compound {circle over (1)}-7
[0087] Compound {circle over (2)}-5: same as the above-mentioned
compound {circle over (1)}-8
[0088] Compound {circle over (2)}-6: Same as the above-mentioned
compound {circle over (1)}-9
[0089] Compound {circle over (2)}-7: 2-(Methylamino)ethyl
laurate
[0090] Compound {circle over (2)}-8: (2-Ethylaminoethyl) coco-fatty
carboxylate
[0091] Compound {circle over (2)}-9: (2-Ethylaminoethyl) palm
kernel-fatty carboxylate
[0092] Other Surfactants
[0093] AES, LAPB, LDMAO, MEA and DEA have the same meanings as
defined above.
[0094] EAA: Polyoxyethylene(2) coconut oil-fatty acid
monoethanolamide
[0095] <Method for evaluating the foamability {circle over
(2)}>
[0096] Foam volume (mL) immediately after the shaking was measured
in the same manner as in the method for evaluating the foamability
(except that a surfactant composition was used instead of the
above-mentioned detergent composition.
4 TABLE {circle over (2)}-1 Surfactant composition Comparative
Example (parts by weight) {circle over (2)}-5 Component (a)
Compound {circle over (2)}-1 Compound {circle over (2)}-2 Compound
{circle over (2)}-3 Component (b) Compound {circle over (2)}-4
Compound {circle over (2)}-5 Compound {circle over (2)}-6 Compound
{circle over (2)}-7 Compound {circle over (2)}-8 Compound {circle
over (2)}-9 Other surfactant AES 11.0 LAPB 4.0 LDMAO MEA DEA EAA
1.0 pH 6.0 Foam volume (ml) 221
Examples {circle over (2)}-8 to {circle over (2)}-16 and
Comparative Examples {circle over (2)}-8 to {circle over
(2)}-11
[0097] Various surfactant compositions having the formulations as
shown in Table {circle over (2)}-2 were prepared using the
components shown in Table {circle over (2)}-2 and their
foamabilities were evaluated in the same manner as in Example
{circle over (2)}-1. The results are shown in Table {circle over
(2)}-2.
5 TABLE {circle over (2)}-2 Example {circle over (2)}-8 {circle
over (2)}-9 {circle over (2)}-10 {circle over (2)}-11 {circle over
(2)}-12 {circle over (2)}-13 {circle over (2)}-14 Surfactant
Component Compound 3.0 1.0 2.0 3.0 composition (a) {circle over
(2)}-1 (parts by weight) Compound 2.0 2.0 3.0 {circle over (2)}-3
Component Compound 0.13 0.04 0.08 0.13 (b) {circle over (2)}-4
Compound 0.06 0.21 0.35 {circle over (2)}-6 Other AES 18.0 19.0
18.0 17.0 18.0 18.0 17.0 component MEA DEA EAA Glycerol 0.50 0.50
0.50 0.20 0.30 Foam volume (ml) 212 238 246 236 208 219 250 Example
Comparative Example {circle over (2)}-15 {circle over (2)}-16
{circle over (2)}-8 {circle over (2)}-9 {circle over (2)}-10
{circle over (2)}-11 Surfactant Component Compound composition (a)
{circle over (2)}-1 (parts by weight) Compound 4.0 4.0 {circle over
(2)}-3 Component Compound (b) {circle over (2)}-4 Compound 0.12
0.48 {circle over (2)}-6 Other AES 16.0 16.0 20.0 18.0 18.0 15.0
component MEA 2.0 DEA 4.0 EAA 5.0 Glycerol 0.40 0.40 Foam volume
(ml) 243 257 190 199 198 193
Examples {circle over (2)}-17 to {circle over (2)}-20 and
Comparative Examples {circle over (2)}-12 to {circle over
(2)}-16
[0098] Various surfactant compositions having the formulations as
shown in Table {circle over (2)}-3 were prepared using the
components shown in Table {circle over (2)}-3 and they were
measured in the viscosity at 25.degree. C. using an ordinary
Brookfield viscometer. The results are shown in Table {circle over
(2)}-3.
6 TABLE {circle over (2)}-3 Example Comparative Example {circle
over (2)}-17 {circle over (2)}-18 {circle over (2)}-19 {circle over
(2)}-20 {circle over (2)}-12 {circle over (2)}-13 {circle over
(2)}-14 {circle over (2)}-15 {circle over (2)}-16 Surfactant
Component Component {circle over (2)}-1 5.0 composition (a)
Component {circle over (2)}-3 5.0 5.0 5.0 4.0 (parts by weight)
Component Component {circle over (2)}-4 0.20 (b) Component {circle
over (2)}-6 0.15 0.35 0.60 Other AES 15.0 15.0 15.0 15.0 20.0 15.0
15.0 15.0 16.0 surfactant MEA 5.0 DEA 5.0 EAA 5.0 Glycerol 0.50
0.50 0.50 0.50 Viscosity (mPa .multidot. s) 8253 3813 4065 6698 12
1934 1725 163 1938
* * * * *