Low carbon footprint compositions for use in laundry applications
View Patent ↗Liquid laundry detergent compositions are provided that show remarkable performance even though they utilize only eco-friendly ingredients and have a sustainability index of greater than 3. Some embodiments include a liquid laundry detergent composition comprising alkyl polyglycoside (APG) with fatty alcohol sulfate, at least two detersive enzymes, an enzyme stabilization system (e.g. borate and/or citrate and/or calcium salts), d-limonene or other natural essence, water and adjuvant. In another exemplary embodiment, APG is combined with fatty acid soaps, at least two detersive enzymes, an enzyme stabilization system (e.g. borate and/or citrate and/or calcium salts), d-limonene or other natural essence, water and adjuvant. Such compositions show remarkable performance, good viscosity, physical storage stability, enzyme stability, and have a sustainability index of greater than 3.
1. A laundry cleaning composition, the composition consisting essentially of:
a surfactant mixture consisting of an alkylpolyglucoside; a fatty alcohol sulfate,
and optionally one or more of an ethoxylated alcohol, a fatty acid soap, and an
alkyl ether sulfate;
at least one enzyme;
at least inorganic salt;
at least one acid; and
a balance of water;
wherein the laundry cleaning composition has a sustainability index (SI) of at least 3 by the formula:
S
I
=
(
%
cleaning
efficiency
)
(
%
total
carbon
footprint
)
.
2. The composition according to claim 1 further comprising a fabric softening component.
3. The composition according to claim 1 further comprising naturally derived fragrance component.
4. The composition according to claim 1 wherein said laundry cleaning composition has said SI of at least 6 by the following formula:
S
I
=
(
%
cleaning
efficiency
)
(
%
total
carbon
footprint
)
-
(
%
renewable
carbon
)
.
5. A method of formulating a detergent, the method comprising:
selecting an alkylpolyglucoside;
selecting a fatty alcohol sulfate;
selecting at least one enzyme;
selecting at least one inorganic salt;
selecting at least one acid;
formulating a combination consisting essentially of
a surfactant mixture consisting of said alkylpolyglucoside, said fatty alcohol sulfate, and optionally one or more of an ethoxylated alcohol, a fatty acid soap, and an alkyl ether sulfate,
said at least one enzyme,
said at least inorganic salt,
said at least one acid; and
a balance of water;
determining a sustainability index (SI) of said combination by the following formula:
S
I
=
(
%
cleaning
efficiency
)
(
%
total
carbon
dioxide
)
;
accepting said combination as a formulation if said SI is at least 3.
6. The composition according to claim 1 , wherein said alkylpolyglucoside is present in an amount of about 1% to about 50% of the total composition.
7. The composition according to claim 1 , wherein said alkylpolyglucoside is present in an amount of about 1% to about 3% of the total composition.
8. The composition according to claim 1 , wherein said fatty alcohol sulfate is present in an amount of about 1% to about 50% of the total composition.
9. The composition according to claim 1 , wherein said at least one acid is citric acid.
10. The composition according to claim 1 , wherein said at least one enzyme is a detersive enzyme.
11. A laundry cleaning composition, the composition consisting essentially of:
an alkylpolyglucoside represented by the general formula, G x -O—R 1 , wherein G is a moiety derived from reducing a saccharide containing 5 or 6 carbon atoms; R 1 is a non-petroleum derived fatty alkyl group containing about 6 to about 20 carbon atoms; and x is the degree of polymerization of the moiety, representing a number of monosaccharide repeating units in the moiety;
a fatty alcohol sulfate having the general formula R—O—SO 3 Na where R is a non-petroleum derived fatty alkyl group containing about 10 to about 18 carbon atoms;
at least one enzyme;
at least inorganic salt;
at least one acid; and
a balance of water;
wherein the laundry cleaning composition has a sustainability index (SI) of at least 3 by the formula:
S
I
=
(
%
cleaning
efficiency
)
(
%
carbon
footprint
)
.