EP0630964A2
Expired / Lapsed
EP
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Inhibition of re-absorption of migrating dyes in the wash liquor
Assignee: BASF Schweiz AG
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Filing: 1994-06-10
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Granted: —
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Expires: 2014-06-10
Abstract
Abstract A process for inhibiting the re-absorption of migrating dyes in the wash liquor comprises introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150 mg, per litre of wash liquor, of one or more manganese complexes. The manganese compounds do not exhaust at all on to cotton, polyamide or polyester fibres so that the compounds cannot lead to fibre discolouration problems.
Inventors
- 👤 Claude Dr. Eckhardt
- 👤 Dieter Dr. Reinehr
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 09:03
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3932; C11D3/0005; C11D3/0021; C11D3/16; C11D3/34
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
151 words
A process for inhibiting the re-absorption of migrating dyes in the wash liquor, comprising introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150 mg, per litre of wash liquor, of one or more compounds having the formula (1), (2), (3), (4), (5), (6) or (7): or in which R₁, R₂, R₃ and R₄ are the same or different and each is hydrogen or optionally substituted alkyl, cycloalkyl or aryl; R₅ is hydrogen, alkyl or SO₃M; R₆ and R₇ are the same or different and each is NH-CO-NH 2, a group of formula or a group of formula Y is optionally substituted alkylene or cyclohexylene; X is OH, NH₂, optionally substituted aryl or optionally substituted alkyl; n is 0, 1, 2 or 3; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; m is 0 or 1; and A is an anion.
Claim 2
Dependent Claim
40 words
A process according to claim 1 in which from 1.5 to 75 mg. per litre of wash liquor of one or more compounds having the formula (1), (2), (3), (4), (5), (6) or (7) is introduced into the wash liquor.
Claim 3
Dependent Claim
40 words
A process according to claim 2 in which from 7.5 to 40 mg. per litre of wash liquor of one or more compounds having the formula (1), (2), (3), (4), (5), (6) or (7) is introduced into the wash liquor.
Claim 4
Dependent Claim
35 words
A process according to any of claims 1 to 3 in which a compound of formula (1) is used in which R₁ is hydrogen, Y is -CH₂-CH₂- , M is sodium and n is 2.
Claim 5
Dependent Claim
28 words
A process according to any of claims 1 to 3 in which a compound of formula (2) is used in which R₂ is hydrogen and X is OH.
Claim 6
Dependent Claim
41 words
A process according to any of claims 1 to 3 in which a compound of formula (3) is used in which R₃ is hydrogen, R₄ is phenyl and the SO₃M group is in para position with respect to the oxygen atom.
Claim 7
Dependent Claim
38 words
A process according to any of claims 1 to 3 in which a compound of formula (4) is used in which R₁ is hydrogen and each SO₃M group is in para position with respect to the oxygen atom.
Claim 8
Dependent Claim
48 words
A process according to any of claims 1 to 3 in which a compound of formula (5) is used in which R₁ is hydrogen or methyl, R₅ is hydrogen, methyl or SO₃M, Y is -CH₂CH₂- or cyclohexylene and A is a chloride, acetate, hydroxy, methoxy or PF₆ anion.
Claim 9
Dependent Claim
19 words
A process according to claim 8 in which R₅ is in para position with respect to the oxygen atom.
Claim 10
Dependent Claim
36 words
A process according to any of claims 1 to 3 in which a compound of formula (6) is used in which R₆ and R₇ are the same, m is 1 and A is the acetate anion.
Claim 11
Dependent Claim
50 words
A detergent composition comprising: i) 5-90% of A) an anionic surfactant and/or B) a nonionic surfactant; ii) 5-70% of C) a builder; iii) 0.1-30% of D) a peroxide; and iv) 0.005-2% of E) a compound of formula (1), (2), (3), (4), (5), (6) or (7) as defined in claim 1.
Claim 12
Dependent Claim
53 words
A composition according to claim 11 comprising: i) 5-70% of A) an anionic surfactant and/or B) a nonionic surfactant; ii) 5-50% of C) a builder; iii) 1-12% of D) a peroxide; and iv) 0.02-1% of E) a compound of formula (1), (2), (3), (4), (5), (6) or (7) as defined in claim 1.
Claim 13
Dependent Claim
53 words
A composition according to claim 12 comprising: i) 5-70% of A) an anionic surfactant and/or B) a nonionic surfactant; ii) 5-40% of C) a builder, iii) 1-12% of D) a peroxide; and iv) 0.1-0.5% of E) a compound of formula (1), (2), (3), (4), (5), (6) or (7) as defined in claim 1.
Claim 14
Dependent Claim
35 words
A composition according to any of claims 11 to 13 comprising a combination of two or more of the compounds of formula (1), (2), (3), (4), (5), (6) or (7) as defined in claim 1.
Claim 15
Dependent Claim
31 words
A composition according to any of claims 11 to 14 comprising 0.5-5% by weight of a polymer useful in preventing the transfer of labile dyes between fabrics during a washing cycle.
Claim 16
Dependent Claim
11 words
A composition according to claim 15 comprising 0.2-1.7% of the polymer.
Claim 17
Dependent Claim
22 words
A composition according to claim 15 or 16 in which the polymer is a polyvinylpyrrolidone optionally containing an anionic or cationic substituent.
Claim 18
Dependent Claim
20 words
A composition according to any of claims 11 to 17 in which the detergent is in powder or granulate form.
Claim 19
Dependent Claim
22 words
A composition according to any of claims 11 to 18 in which the detergent is in liquid form and contains 0-5% water.
Claim 20
Dependent Claim
18 words
A composition according to claim 19 in which the detergent is in liquid form and contains 0-1% water.
Claim 21
Dependent Claim
25 words
A process for the production of a detergent as claimed in claim 18 in which the components of the detergent are mixed in dry form.
Claim 22
Dependent Claim
56 words
A process for the production of a detergent as claimed in claim 18 in which a base powder is produced by spray-drying an aqueous slurry which contains all the components defined in claim 11, apart from the components D) and E); and then adding the components D) and E) by dry-blending them into the base powder.
Claim 23
Dependent Claim
42 words
A process for the production of a detergent as claimed in claim 18 in which the component E) is added to the slurry containing components A), B) and C), which slurry is then spray-dried before component D) is dry-blended into the mixture.
Claim 24
Dependent Claim
58 words
A process for the production of a detergent as claimed in claim 18 in which component B) is not present, or is only partly present in a slurry containing components A) and C); the component E) is incorporated into component B), which is then added to the spray-dried base powder;and finally component D) is dry-blended into the mixture.
Claim 25
Dependent Claim
107 words
A compound having the formula (2), (3), (4), (5), (6) or (7): or in which R₁, R₂, R₃ and R₄ are the same or different and each is hydrogen or optionally substituted alkyl, cycloalkyl or aryl; R₅ is hydrogen, alkyl or SO₃M; R₆ and R₇ are the same or different and each is NH-CO-NH 2, a group of formula or a group of formula Y is optionally substituted alkylene or cyclohexylene; X is OH, NH₂, optionally substituted aryl or optionally substituted alkyl; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; m is 0 or 1; and A is an anion.
References Cited (Backward Citations)
No citation records indexed.
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