Antibacterial cleaning wipe comprising betaine

Details Antibacterial cleaning wipe comprising betaine Antibacterial cleaning wipe comprising betaine

2001-12-10

2002-08-06

Ogden, Necholus (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Heterogeneous arrangement

C510S439000, C510S422000, C510S424000, C510S490000, C510S504000, C510S505000

Reexamination Certificate

active

06429183

ABSTRACT:

FIELD OF INVENTION
The present invention relates to a nonwoven fabric which has been impregnated with an antibacterial liquid cleaning composition.
BACKGROUND OF THE INVENTION
The patent literature describes numerous wipes for both body cleaning and cleaning of hard surfaces but none describe the instant cleaning wipes which have improved cleaning characteristics in the minimization of streaking and residue.
U.S. Pat. Nos. 5,756,612; 5,763,332; 5,908,707; 5,914,177; 5,980,922 and 6,168,852 teach cleaning compositions which are inverse emulsions.
U.S. Pat. Nos. 6,183,315 and 6,183,763 teach cleaning compositions containing a proton donating agent and having an acidic pH.
U.S. Pat. Nos. 5,863,663; 5,952,043; 6,063,746 and 6,121,165 teaches cleaning compositions which are out in water emulsions.
SUMMARY OF THE INVENTION
An antibacterial cleaning wipe for cleaning hard surfaces such as walls, counter tops and floors comprises a nonwoven fabric containing at least polyester fibers and viscose fibers, wherein the nonwoven fabric is impregnated with a liquid cleaning composition containing a zwitterionic surfactant, at least one nonionic surfactant, a disinfecting agent, a cosurfactant, an alkanol, optionally, an anionic surfactant, optionally, a proton donating agent and water, wherein the liquid cleaning composition is not an emulsion and does not contain proteins, metallic salts, enzymes, amides, sodium hypochlorite, dimethicone, N-methyl-2-pyrrolidone, monoalkyl phosphate or silicon based sulfosuccinate.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to an antibacterial cleaning wipe for hard surfaces which comprises approximately:
(a) 20 wt. % to 30 wt. % of a nonwoven fabric which consists of at least polyester fibers and viscose fibers and preferably consists of 60 wt. % to 95 wt. % of wood pulp fibers, 2.5 wt. % to 20 wt. % of viscose fibers and 2.5 wt. % to 20 wt. % of polyester fibers; and
(b) 70 wt. % to 80 wt. % of a liquid cleaning composition being impregnated in said nonwoven fabric, wherein said liquid cleaning composition comprises:
(i) 0.1 wt. % to 5 wt. %, more preferably 0.25 wt. % to 4 wt. % of a zwitterionic surfactant;
(ii) 0.25 wt. % to 10 wt. %, more preferably 0.5 wt. % to 6 wt. % of a C
1
-C
4
alkanol;
(iii) 0.5 wt. % to 8 wt. %, more preferably 1 wt. % to 5 wt. % of a cosurfactant;
(iv) 0.1 wt. % to 2 wt. %, more preferably 0.2 wt. % to 1.4 wt. % of a disinfecting agent;
(vi) 0 to 1.0 wt. %, more preferably 0.8 wt. % to 0.1 wt. % of a perfume;
(vii) 0.5 wt. % to 8 wt. %, more preferably 1.0 wt. % to 6 wt. % of at least one ethoxylated nonionic surfactant; and
(viii) the balance being water, wherein the composition has a pH of about 5.5 to about 7, more preferably about 5.8 to about 6.6.
The present invention also relates to an antibacterial cleaning wipe for hard surfaces which comprises approximately:
(a) 20 wt. % to 30 wt. % of a nonwoven fabric which consists of at least polyester fibers and viscose fibers and preferably consists of 60 wt. % to 95 wt. % of wood pulp fibers, 2.5 wt. % to 20 wt. % of viscose fibers and 2.5 wt. % to 20 wt. % of polyester fibers; and
(b) 70 wt. % to 80 wt. % of a liquid cleaning composition being impregnated in said nonwoven wherein said liquid cleaning composition comprises:
(i) from 0 to 10 wt. % of a nonionic surfactant formed from a C
8
-C
18
alkanol and about 6 to about 9, preferably about 7 to about 8.5 moles of ethylene oxide;
(ii) 0.1 wt. % to 4 wt. % of an ethoxylated nonionic surfactant formed from a C
9
-C
11
alkanol and about 2 to about 3 moles of ethylene oxide;
(iii) 0.1 wt. % to 10 wt. % of a zwitterionic surfactant;
(iv) from 0 to 5 wt. %, more preferably 0.1 wt. % to 3 wt. % of an anionic surfactant
(v) from 0 to 4 wt. %, more preferably 0.1 wt. % to 1 wt. % of at least one disinfecting agent such as triclosan, essential oil or perfume;
(vi) 0.1 wt. % to 5 wt. %, more preferably 0.3 wt. % to 3 wt. % of a proton donating agent;
(vii) 0 to 6 wt. % of at least a water soluble solvent which is a C
1
-C
4
alkanol;
(viii) 0.1 wt. % to 1.0 wt. % of triethanol amine;
(ix) 1 wt. % to 10 wt. % of a blend of water soluble glycol ethers; and
(x) the balance being water, wherein the composition has a pH of 2.5 to 4.7.
The water-soluble zwitterionic surfactant (betaine), which is used in the instant cleaning composition and provides good foaming properties and mildness to the composition. The zwitterionic surfactant is a water soluble betaine having the general formula:
wherein X
−
is selected from the group consisting of SO
3
— and CO
2
— and R
1
is an alkyl group having 10 to about 20 carbon atoms, preferably 12 to 16 carbon atoms, or the amido radical:
wherein R is an alkyl group having about 9 to 19 carbon atoms and a is the integer 1 to 4; R
2
and R
3
are each alkyl groups having 1 to 3 carbons and preferably 1 carbon; R
4
is an alkylene or hydroxyalkylene group having from 1 to 4 carbon atoms and, optionally, one hydroxyl group. Typical alkyldimethyl betaines include decyl dimethyl betaine or 2-(N-decyl-N, N-dimethyl-ammonia) acetate, coco dimethyl betaine or 2-(N-coco N, N-dimethylammonia) acetate, myristyl dimethyl betaine, palmityl dimethyl betaine, lauryl dimethyl betaine, cetyl dimethyl betaine, stearyl dimethyl betaine, etc. The amidobetaines similarly include cocoamidoethylbetaine, cocoamidopropyl betaine and the like. A preferred betaine is coco (C
8
-C
18
) amidopropyl dimethyl betaine.
As used herein and in the appended claims the term “perfume” is used in its ordinary sense to refer to and include any non-water soluble fragrant substance or mixture of substances including natural (i.e., obtained by extraction of flower, herb, blossom or plant), artificial (i.e., mixture of natural oils or oil constituents) and synthetically produced substance) odoriferous substances. Typically, perfumes are complex mixtures of blends of various organic compounds such as alcohols, aldehydes, ethers, aromatic compounds and varying amounts of essential oils (e.g., terpenes) such as from 0% to 80%, usually from 10% to 70% by weight, the essential oils themselves being volatile odoriferous compounds and also serving to dissolve the other components of the perfume.
In the present invention the precise composition of the perfume is of no particular consequence to cleaning performance so long as it meets the criteria of water immiscibility and having a pleasing odor. Naturally, of course, especially for cleaning compositions intended for use in the home, the perfume, as well as all other ingredients, should be cosmetically acceptable, i.e., non-toxic, hypoallergenic, etc.
The water soluble nonionic surfactants utilized in this invention are commercially well known and include the primary aliphatic alcohol ethoxylates, secondary aliphatic alcohol ethoxylates, alkylphenol ethoxylates and ethylene-oxide-propylene oxide condensates on primary alkanols, such a Plurafacs (BASF) and condensates of ethylene oxide with sorbitan fatty acid esters such as the Tweens (ICI). The nonionic synthetic organic detergents generally are the condensation products of an organic aliphatic or alkyl aromatic hydrophobic compound and hydrophilic ethylene oxide groups. Practically any hydrophobic compound having a carboxy, hydroxy, amido, or amino group with a free hydrogen attached to the nitrogen can be condensed with ethylene oxide or with the polyhydration product thereof, polyethylene glycol, to form a water-soluble nonionic detergent. Further, the length of the polyethenoxy chain can be adjusted to achieve the desired balance between the hydrophobic and hydrophilic elements.
The nonionic detergent class includes the condensation products of a higher alcohol (e.g., an alkanol containing about 8 to 18 carbon atoms in a straight or branched chain configuration) condensed with about 5 to 30 moles of ethylene oxide, for example, lauryl or myristyl alcohol condensed with about 16 moles of ethylene oxide (EO), tridecanol condensed with about 6 to moles of EO, myristyl alcohol condensed with about 10 moles of EO per mo

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