Detergent bleach composition and process

Claim 2

A process for removing stains from cotton fabrics which comprises the steps of (i) treating the fabrics with an aqueous solution of detergent bleach composition, and (ii) drying; wherein both steps take place in darkness and wherein said detergent bleach composition consists essentially of the following components, (a) surfactant, (b) peroxy bleach, and (c) porphine bleach; where the surfactant is from 5 to 50 wt. % based on the weight of the composition and is selected from the group consisting of anionic, nonionic, semi-polar, ampholytic and cationic surfactants; where the peroxy bleach has an available oxygen content of from 0.2 to 5.0 wt. % based on the weight of the composition and is an inorganic peroxyhydrate selected from the group consisting of alkali metal salts of perborates, percarbonates, persulfates, persilicates, perphosphates and perpolyphosphates; urea peroxide; or an organic peroxy acid or anhydride or salt thereof having the general formula ##STR48## where R is an alkylene group containing from 1 to 20 carbon atoms or a phenylene group and Y is selected from the group consisting of hydrogen, halogen, alkyl and aryl; where the porphine bleach is from 0.001 to 0.5 wt. % based on the weight of the composition and has the general formula ##STR49## wherein each X is (═N--) or (═CY--), and the total number of (═N--) groups is 0, 1, 2, 3 or 4; wherein each Y, independently, is hydrogen or meso substituted alkyl, cycloalkyl, aralkyl, aryl, alkaryl or heteroaryl; wherein each R, independently, is hydrogen or pyrrole substituted alkyl, cycloalkyl, aralkyl, aryl, alkaryl or heteroraryl, or wherein adjacent pairs of R's are joined together with orthoarylene groups to form pyrrole substituted alicyclic or heterocyclic rings; wherein A is 2(H) atoms bonded to diagonally opposite nitrogen atoms, or Zn(II), Cd(II), Mg(II), Ca(II), Al(III), Sc(III), or Sn(IV); wherein B is an anionic, nonionic or cationic solubilizing group substituted into Y or R; wherein M is a counterion to the solubilizing groups; and wherein s is the number of solubilizing groups; wherein, when B is cationic, M is an anion and s is from 1 to about 8; when B is nonionic, B is polyethoxylate, M is zero, s is from 1 to about 8, and the number of condensed ethylene oxide molecles per porphine molecule is from about 8 to about 50; when B is anionic and proximate, M is cationic and s is from 3 to about 8; when B is anionic and remote, M is cationic and s is from 2 to about 8; and when B is sulfonate the number of sulfonate groups is no greater than the number of aromatic and heterocyclic substituent groups.

Claim 3

The process of claim 1 wherein the porphine bleach is from 0.003 to 0.022 wt.% based on the weight of the composition.

Claim 4

The process of claim 1 where the porphine bleach is a compound other than zinc phthalocyanine sulfonate.

Claim 5

The process of claim 1 wherein the peroxy bleach is an alkali metal salt of perborate, percarbonate, persulfate, persilicate, perphosphate or perpolyphosphate; urea peroxide; or diperazeleic acid, diperdodecanedioic acid, monoperoxyphthalic acid, diperoxyterephthalic acid, 4-chlorodiperoxyphthalic, the monosodium salt of diperoxyterephthalic acid, m-chloroperoxybenzoic acid, p-nitroperoxybenzoic acid, or diperoxyisophthalic acid.

Claim 6

The process of claim 1 wherein A is 2(H) or Zn(II); and B is pyridinium, quaternary ammonium, polyethoxylate, sulfonate, carboxylate, polyethoxycarboxylate, sulfate, polyethoxysulfate, phosphate, or polyethoxyphosphate.

Claim 7

The process of claim 1 wherein A is 2 (H) atoms bonded to diagonally opposite nitrogen atoms, or Zn(II), Cd(II), Mg(II), Sc(III), or Sn(IV).

Claim 8

The process of claim 1 wherein the composition additionally contains an exotherm control agent selected from the group consisting of boric acid, malic acid, maleic acid, succinic acid, phthalic acid, glutaric acid, adipic acid, azelaic acid and dodecanedioic acid which is present in the amount of at least 50% of the amount of organic peroxy bleach present.

Claim 9

The process of claim 1 wherein the available oxygen content of the peroxy bleach is from 0.2 to 0.7 wt.% based on the weight of the composition.

Claim 10

The process of claim 8 wherein A is 2(H) atoms bonded to diagonally opposite nitrogen atoms, or Zn(II), Cd(II), Mg(II), Sc(III), or Sn(IV).

Claim 11

The process of claim 1 wherein the available oxygen content of the peroxy bleach is from 0.2 to 0.5 wt.% based on the weight of the composition.

Claim 12

The process of claim 10 wherein the porphine bleach is from 0.003 to 0.022 wt.% based on the weight of the composition.

Claim 13

The process of claim 10 where the porphine bleach is a compound other than zinc phthalocyanine sulfonate.

Claim 14

The process of claim 1 wherein the surfactant is from 10% to 30% by weight of the composition and, where the surfactant is anionic, is soap or a water-soluble salt of alkyl benzene sulfonate having about 9 to about 15 carbon atoms in a linear or branched alkyl chain, alkyl sulfate, alkyl polyethoxy ether sulfate, paraffin sulfonate, alpha-olefin sulfonate, alpha-sulfocarboxylates and their esters, alkyl glyceryl ether sulfonate, fatty acid monoglyceride sulfates and sulfonates, alkyl phenol polyethoxy ether sulfate, 2-acyloxy-alkane-1-sulfonate, and beta-alkyloxy alkane sulfonate; where the surfactant is nonionic, is a polyethoxylate of an alcohol, alkyl phenol, polypropoxy glycol, or polypropoxy ethylene diamine; where the surfactant is semi-polar, is amine oxide, phosphine oxide or sulfoxide; where the surfactant is ampholytic, is a water-soluble derivative of an aliphatic secondary or tertiary amine in which the aliphatic moiety is straight chain or branched and wherein one of the aliphatic substituents contains from about 8 to 18 carbon atoms and one contains an anionic water-solubilizing group; where the surfactant is zwitterionic, is a water-soluble derivative of an aliphatic quaternary ammonium, phosphonium or sulfonium cationic compound in which the aliphatic moieties are straight chain or branched, and wherein one of the aliphatic substituents contains from about 8 to 18 carbon atoms and one contains an anionic water solubilizing group; and where the surfactant is cationic, has the formula ##STR50## wherein each R 1 is an organic group containing a straight or branched alkyl or alkenyl group optionally substituted with up to 3 phenyl groups and optionally interrupted by up to 4 structures selected from the group consisting of ______________________________________ ##STR51## ##STR52## ##STR53## (1) ##STR54## (2) ##STR55## (3) ##STR56## (4) ##STR57## (5) ##STR58## (6) ##STR59## (7) ______________________________________ (8) mixtures thereof, L is a number from 1 to 10, Z is an anion in a number to give electrical neutrality.

Claim 15

The process of claim 13 wherein the peroxy bleach is an alkali metal salt of perborate, percarbonate, persulfate, persilicate, perphosphate or perpolyphosphate; urea peroxide; or diperazeleic acid, diperdodecanedioic acid, monoperoxyphthalic acid, diperoxyterephthalic acid, 4-chlorodiperoxyphthalic, the monosodium salt of diperoxyterephthalic acid, m-chloroperoxybenzoic acid, p-nitroperoxybenzoic acid, or diperoxyisophthalic acid; A is 2(H) or Zn(II); and B is pyridinium, quaternary ammonium, polyethoxylate, sulfonate, carboxylate, polyethoxycarboxylate, sulfate, polyethoxysulfate, phosphate, or polyethoxyphosphate.

Claim 16

The process of claim 14 wherein the available oxygen content of the peroxy bleach is from 0.2 to 0.7 wt.% based on the weight of the composition.

Claim 17

The process of claim 15 wherein the surfactant is alkyl benzene sulfonate.

Claim 18

The process of claim 15 wherein the peroxy bleach is sodium perborate monohydrate or tetrahydrate.

Claim 19

The process of claim 15 wherein the porphine bleach is zinc phthalocyanine sulfonate.

Claim 20

The process of claim 15 wherein the porphine bleach is from 0.003 to 0.022 wt.% based on the weight of the composition.

Claim 21

The process of claim 15 wherein the porphine bleach is a compound other than zinc phthalocyanine sulfonate.

Claim 22

The process of claim 14 wherein the porphine bleach is from 0.003 to 0.022 wt.% based on the weight of the composition.

Claim 23

The process of claim 14 where the porphine bleach is a compound other than zinc phthalocyanine sulfonate.

Claim 24

The process of claim 14 wherein the available oxygen content of the peroxy bleach is from 0.2 to 0.5 wt.% based on the weight of the composition.

Claim 25

The process of claim 23 wherein the surfactant is alkyl benzene sulfonate, the peroxy bleach is sodium perborate tetrahydrate, and the porphine bleach is zinc phthalocyanine tetrasulfonate.

Claim 26

The process of claim 23 wherein the porphine bleach is from 0.005 to 0.017 wt.% based on the weight of the composition.

Claim 27

The process of claim 23 wherein the porphine bleach is a compound other than zinc phthalocyanine sulfonate.

Claim 28

The process of claim 23 wherein the porphine bleach is from 0.003 to 0.022 wt.% based on the weight of the composition.

Claim 29

The process of claim 27 wherein the composition additionally contains a peroxy bleach activator comprising an acylating agent selected from the group consisting of N,N,N',N'-tetraacetyl ethylene diamine, N-acetyl imidazole, N-benzoyl imidazole, N,N'-dimethyl barbitone, N,N'-diacetyl-5,5'-dimethylhydantoin, N,N,N',N'-tetraacetyl glycoluril, sodium p-acetoxybenzene sulphonate, sodium p-benzyloxy benzene sulphonate, acetyl salicyclic acid, chloracetoxy salicyclic acid, trimethylcyanurate and mixtures thereof; wherein the amount of peroxy bleach activator is at a ratio to inorganic peroxy bleach of 1:1 to about 1:20.

Claim 30

The process of claim 27 wherein the composition additionally contains from 10 to 60% of a detergency builder selected from the group consisting of water-soluble alkali metal carbonates, borates, phosphates, polyphosphates, bicarbonates, and silicates; sodium and potassium ethylenediamine-tetraacetates, nitrilotriacetates and N-(2-hydroxyethyl)-nitrilodiacetates; sodium and potassium phytates; sodium, potassium and lithium salts of ethane-1-hydroxy-1, 1-diphosphonic acid, methylene diphosphonic acid, ethylene diphosphonic acid, ethane-1,1,2-triphosphonic acid; the alkali metal salts of ethane-2-carboxy-1,1-diphosphonic acid, hydroxymethanediphosphonic acid, carbonyldiphosphonic acid, ethane-1-hydroxy-1,1,2-triphosphonic acid, ethane-2-hydroxy-1,1,2-triphosphonic acid, propane-1,1,3,3-tetraphosphonic acid, propane-1,1,2,3-tetraphosphonic acid, and propane-1,2,2,3-tetraphosphonic acid; and amorphous and crystalline aluminosilicates.