Fabric care systems for providing anti-wrinkle benefits to...

Details Fabric care systems for providing anti-wrinkle benefits to... Fabric care systems for providing anti-wrinkle benefits to...

2002-07-16

2004-11-16

Hardee, John R. (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

Auxiliary compositions for cleaning, or processes of preparing

Textile softening or antistatic composition

C510S521000

Reexamination Certificate

active

06818610

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to fabric care systems that enhance the anti-wrinkle properties of fabric. The systems of the present invention also comprise compositions comprising cationic silicones. The present invention further relates to methods for providing an anti-wrinkle benefit to fabric.
BACKGROUND OF THE INVENTION
Fabric, especially cellulose based fabric, inter alia, cotton, has a propensity to wrinkle either upon drying after the laundry process or when worn. Permanent press finishes have been used to provide a crisp, smooth garment, however, permanent press processes must modify the fabric itself, either by cross linking of the cellulose fiber or by applying a less flexible coating material. The breathability, especially of cotton, is sacrificed if the applied coating or crosslinking fills the interstices of the fiber cells.
For natural fiber, inter alia, cotton, most coatings must be chemically reacted with the fabric fiber itself in order to obtain the desired level of anti-wrinkle properties. This type of treatment also can occur during the synthesis of polyester fabrics as well. To achieve controlled deposition, there must be an affinity for a fabric surface and the ability of a substrate to lie down onto the garment surface is key to achieving and maintaining a smooth fabric surface.
There is, therefore, a long felt need in the art for a fabric treatment system which provides anti-wrinkle benefits to fabric regardless of fabric type, and which does not require chemical bonding of the substrate to the fabric itself.
SUMMARY OF THE INVENTION
The aforementioned needs have been met in that it has been surprisingly discovered that certain cationic silicone compounds when used in combination with materials capable of scavenging compounds having an anionic charge which can affect active deposition onto fabric, together provide anti-wrinkle benefits to fabric. The benefits of the present invention can be delivered by way of a liquid fabric conditioning composition. The cationic silicones of the present invention can be part of a system used to enhance the properties of fabric.
The first aspect of the present invention relates to fabric enhancement compositions comprising:
a) from about 0.0 1% to about 20% by weight, of a cationic silicone polymer or copolymer having the formula:
[CAP]—Z
m
—[CAP]
 wherein each Z unit independently has the formula:
—(R)
x
—W—(R)
x
—
x is 0 or 1;
W is a siloxane unit having the formula:
each R
1
unit is a C
1
-C
22
linear or branched, substituted or unsubstituted hydrocarbyl moiety; n is an index from 1 to 500;
R is a nitrogen atom containing backbone unit having the formula:
B is a unit comprising at least one secondary, tertiary, or quaternary amino moiety, or mixtures thereof; R
2
is a coupling unit having the formula:
R
3
is C
2
-C
12
linear or branched alkylene; R
4
is hydrogen, or a C
1
-C
22
linear or branched, substituted or unsubstituted hydrocarbyl moiety; y is 0 or 1; z is from 0 to 50;
B is a unit comprising at least one secondary, tertiary, or quaternary amino moiety, or mixtures thereof;
R
2
is a coupling unit having the formula:
R
3
is C
2
-C
12
linear or branched alkylene; R
4
is hydrogen, or a C
1
-C
22
linear or branched, substituted or unsubstituted hydrocarbyl moiety; z is from 0 to 50;
L is a linking unit; y is 0 or 1;
b) from about 1% to about 30% by weight, of a scavenger effective in scavenging compounds comprising an anionic unit; and
c) the balance a carrier system.
The present invention further relates to a method for providing fabric enhancement and anti-wrinkle benefits to fabric, said method comprising the step of contacting fabric with a rinse-added composition as described herein.
An additional aspect of the present invention relates to a fabric rinse additive composition comprising the cationic silicone polymer and/or copolymer described above. The present invention further relates a method for providing fabric enhancement and anti-wrinkle benefits to fabric, said method comprising the step of contacting fabric with a fabric rinse additive composition as described herein. The present invention relates further still to the use of a fabric rinse additive composition as described herein in conjunction with a fabric softening composition to provide improved fabric softening and anti-wrinkling benefits.
These and other objects, features, and advantages will become apparent to those of ordinary skill in the art from a reading of the following detailed description and the appended claims. All percentages, ratios and proportions herein are by weight, unless otherwise specified. All temperatures are in degrees Celsius (° C.) unless otherwise specified. All documents cited are in relevant part, incorporated herein by reference.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to rinse-added fabric enhancement compositions wherein one primary benefit is anti-wrinkling of fabric. This anti-wrinkling benefit is not only present as the, fabric emerges from the laundry cycle. but this benefit is sustained while the fabric is worn and can be renewed upon subsequent treatment at the next laundry cycle. The present invention is especially useful when used to provide an anti-wrinkle benefit to articles of manufacture used as garments, inter alia, trousers, blouses, and the like.
This benefit is surprisingly independent of fabric type. This benefit is effective over a wide rang of fabric types because, unlike permanent press treatments, the compounds which provide the benefits do not react with the fabric fibers themselves. The ingredients which comprise the present invention are surprisingly fabric substantive across a range of fabric types (from hydrophobic to hydrophilic fibers) and are able to modify the properties of said fabric without the loss of other desirable fabric properties.
Definitions
For the purposes of the present invention the term “hydrocarbyl” is defined herein as “any unit which comprises carbon and hydrogen atoms, whether linear, branched, cyclic, acyclic, and regardless of how many of the hydrogen atoms are substituted for with a suitable “substituted” unit as defined herein below.” Non-limiting examples of “hydrocarbyl” units include methyl, benzyl, 6-hydroxyoctanyl, m-chlorophenyl, 2-(N-methylamino)propyl, and the like.
The term “substituted” is used throughout the specification and for the purposes of the present invention the term “substituted” is defined as “replacement of a hydrogen atom, two hydrogen atoms, or three hydrogen atoms from a carbon atom to form a moiety, or the replacement of hydrogen atoms from adjacent carbon atoms to form a moiety.” For example, a substituted unit that requires a single hydrogen atom replacement includes halogen, hydroxyl, and the like. A two hydrogen atom replacement includes carbonyl, oximino, and the like. Three hydrogen replacement includes cyano, and the like. The term substituted is used throughout the present specification to indicate that a moiety, inter alia, aromatic ring, alkyl chain, can have one or more of the hydrogen atoms replaced by a substituent. For example, 4-hydroxyphenyl is a “substituted aromatic carbocyclic ring”, and 3-guanidinopropyl is a “substituted C
3
alkyl unit.”
The following are non-limiting examples of moieties, which can replace hydrogen atoms on carbon to form a “substituted hydrocarbyl” unit:
i) —NHCOR
30
;
ii) —COR
30
;
iii) —COOR
30
;
iv) —COCH═CH
2
;
v) —C(═NH)NH
2
;
vi) —N(R
30
)
2
;
vii) —NHC
6
H
5
;
viii) ═CHC
6
H
5
;
ix) —CON(R
30
)
2
;
x) —CONHNH
2
;
xi) —NHCN;
xii) —OCN;
xiii) —CN;
xiv) F, Cl, Br, I, and mixtures thereof;
xv) ═O;
xvi) —OR
30
;
xvii) —NHCHO;
xviii) —OH;
xix) —NHN(R
30
)
2
;
xx) ═NR
30
;
xxi) ═NOR
30
;
xxii) —NHOR
30
;
xxiii) —CNO;
xxiv) —NCS;
xxv) ═C(R
30
)
2
;
xxvi) —SO
3
M;
xxvii) —OSO
3
M;
xxviii) —SCN;
xxix) —P(O)H
2
;
xxx) —PO
2
;
xxxi) —P(O)(OH)
2
;
xxxii) —SO
2
NH
2
;
xxxiii) —SO
2
R
30
;
xxxiv) —NO
2
;
xxxv) —CF
3
, —CCl
3
, —CBr
3
;
xxxvi) and mixtures thereof;
wherein R
30

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