Particulate composition comprising dye fixatives

Abstract

The present invention relates to a method of reducing dye loss or dye transfer from textile fibre materials, especially in the household sector, and to the novel particulate compositions used in that method, especially granules, comprising a dye fixative and a carrier, and to washing and softener compositions comprising such granules.

1 . A method of reducing dye loss or dye transfer from textile fibre materials, in which method the textile fibre materials are treated with a particulate composition comprising 
 a) from 1 to 90% by weight of a water-soluble dye fixative,    b) from 2 to 80% by weight of a carrier,    c) from 0 to 60% by weight of a binder that is soluble/dispersible in water,    d) from 0 to 20% by weight of a further additive, and    e) from 0 to 15% by weight water,    the percentages in each case denoting percent by weight, based on the total weight of the composition.    
     
     
         2 . A method according to  claim 1 , wherein the particulate composition is in the form of granules.  
     
     
         3 . A method according to  claim 1 , wherein treatment is effected with a particulate composition comprising, as the water-soluble dye fixative a), a basic polycondensation product of an amine of formula  
       
         
           
           
               
               
           
         
       
       and a cyanamide, wherein said polycondensation product either has not been neutralised or has been neutralised wholly or partially with an inorganic or organic acid, 
 R 1 , R 2 , R 3  and R 4  each independently of the others being hydrogen or alkyl unsubstituted or substituted by amino, hydroxy, cyano or by C 1 -C 4 alkoxy, and  
 A being alkylene which is unsubstituted or substituted or uninterrupted or interrupted by one or more hetero atoms.  
 
     
     
         4 . A method according to  claim 3 , wherein A is C 2 -C 20 alkylene uninterrupted or interrupted by —O—, —S—, —NH— or by —N(C 1 -C 4 alkyl)- and/or unsubstituted or substituted by hydroxy.  
     
     
         5 . A method according to  claim 3 , wherein the compound of formula (1) is a polyethylenepolyamine.  
     
     
         6 . A method according to  claim 3 , wherein the cyanamide is dicyandiamide.  
     
     
         7 . A method according to  claim 3 , wherein the inorganic or organic acid is a mono- or poly-carboxylic acid, hydrochloric acid, phosphoric acid, sulfuric acid or a mixture of at least two such acids.  
     
     
         8 . A method according to  claim 1 , wherein treatment is effected with a particulate composition comprising a carrier that comprises at least one of the following components: 
 a) water-soluble inorganic and/or organic salts, which may be customary textile washing composition constituents but are not surfactant components,    b) finely divided organic solids that are capable of swelling in water and/or are water-soluble, and    c) very finely dispersed water-insoluble inorganic carriers.    
     
     
         9 . A method according to  claim 1 , wherein the carrier b) consists of at least one compound selected from the group consisting of zeolites, bentonites, kieselguhr, talc, kaolin, mica, fuller's earth, cellulose, feldspar and condensation products of urea and formaldehyde.  
     
     
         10 . A method according to  claim 1 , wherein the binder c) consists of at least one compound selected from the group consisting of starch, maltodextrin and carboxymethylcellulose, hydroxymethylcellulose, polyethylene glycols, ethylene oxide/propylene oxide copolymers, polyvinyl alcohols and gelatin.  
     
     
         11 . A method according to  claim 1 , wherein the particulate compositions comprise wetting agents, water-insoluble or water-soluble dyes, fillers, pigments, perfume oils, foam-regulators, thickeners, microbicides, complexing agents, dissolution accelerators, fluorescent whitening agents, UV absorbers, antioxidants and/or anti-dust agents as further additives d).  
     
     
         12 . A method according to  claim 1 , wherein the particulate compositions are coated.  
     
     
         13 . A method according to  claim 1 , wherein the particulate compositions are uncoated and have a substantially homogeneous distribution of their constituents.  
     
     
         14 . A particulate composition comprising 
 a) from 1 to 90% by weight of a water-soluble dye fixative,    b) from 2 to 80% by weight of a carrier,    c) from 0 to 60% by weight of a binder that is soluble/dispersible in water,    d) from 0 to 20% by weight of a further additive, and    e) from 0 to 15% by weight water,    the percentages in each case denoting percent by weight, based on the total weight of the composition.    
     
     
         15 . A method for the preparation of a particulate composition according to  claim 14 , which comprises 
 a) dissolving a dye fixative or a dye fixative and a binder in water, and then bringing a solid carrier into contact with the solution, or    b) dissolving a dye fixative or a dye fixative and a binder in water, and then applying the solution to the solid carrier or granulating it therewith, or    c) extruding a paste comprising a dye fixative, a carrier and a binder, or    d) granulating a mixture consisting of a dye fixative, a carrier and optionally also a binder, by spray application of a solvent or a melt in which further binders have optionally been dissolved, and drying the compositions obtained according to methods a), b), c) or d), or allowing them to solidify by cooling.    
     
     
         16 . A method according to  claim 15 , wherein, in a subsequent step, the particulate composition is sprayed with a solution of a coating material and is dried or is coated with a melt.  
     
     
         17 . A washing formulation for reducing dye loss or dye transfer from textile fibre materials, comprising 
 I) 5-90% of A) at least one anionic surfactant and/or B) at least one non-ionic surfactant, based on the total weight of the washing formulation,    II) 5-70% of C) at least one builder substance, based on the total weight of the washing formulation,    III) 0-30% of D) at least one peroxide and optionally at least one activator, based on the total weight of the washing formulation,    IV) 0.1-70% of E) at least one particulate composition according to  claim 15  comprising 
 a) from 1 to 90% by weight of at least one water-soluble dye fixative,  
 b) from 2 to 80% by weight of at least one carrier,  
 c) from 0 to 60% by weight of at least one binder that is soluble/dispersible in water,  
 d) from 0 to 20% by weight of at least one further additive, and  
 e) from 0 to 15% by weight water,  
   V) 0-60% of F) at least one further additive, and    VI)0-12% of G) water.    
     
     
         18 . A washing formulation according to  claim 17 , comprising 
 I) 5-90% of A) at least one anionic surfactant from the group consisting of C 12 -C 22 alkylethoxysulfates in which the alkyl moiety has from 10 to 20 carbon atoms and a head group which contains on average 2 or 3 ethoxy units; alkylbenzenesulfonates having from 9 to 15 carbon atoms in the alkyl moiety; alkylnaphthalenesulfonates having from 6 to 16 carbon atoms in the respective alkyl moiety; or alkali metal sarcosinates of the formula R 11 —CO—N(R 12 )—CH 2 COOM 1 , 
 wherein R 11  is alkyl or alkenyl having from 8 to 18 carbon atoms in the alkyl or alkenyl moiety,  
 R 12  is C 1 -C 4 alkyl and  
 M 1  is an alkali metal, and/or  
    of B) at least one non-ionic surfactant selected from the group consisting of condensation products of from 3 to 8 mol of ethylene oxide with 1 mol of a primary alcohol having from 9 to 15 carbon atoms,    II) 5-70% of C) a builder substance selected from the group consisting of alkali metal phosphates; carbonates; bicarbonates; silicates; aluminium silicates; polycarboxylates; polycarboxylic acids; organic phosphonates or aminoalkylenepoly-(alkylene phosphonates),    III) 0-30% of D) a peroxide selected from the group consisting of organic mono- or poly-peroxides; organic per-acids or salts thereof; persulfates; perborates; percarbonates; and persilicates,    IV) 0.1-70% of E) granules comprising 
 a) from 1 to 90% by weight, of polydiallyldimethylammonium compounds, bischloromethylbiphenylpolyquat compounds, the compound polyethyleneimine and basic polycondensation products,  
 b) from 2 to 80% by weight of at least one carrier selected from the group consisting of zeolites, bentonites, kieselguhr, talc, kaolin, mica, fuller's earth, cellulose, feldspar and condensation products of urea and formaldehyde,  
 c) from 0 to 60% by weight of at least one non-ionic dispersant and/or water-soluble polymer selected from the group consisting of starch, maltodextrin and carboxymethylcellulose, hydroxymethylcellulose, polyethylene glycols, ethylene oxide/propylene oxide copolymers, polyvinyl alcohols and gelatin,  
 d) from 0 to 20% by weight of at least one further additive selected from the group consisting of wetting agents; disintegrators; fillers, water-insoluble or water-soluble dyes or pigments; dissolution accelerators; fluorescent whitening agents; aluminium silicates; powdered cellulose; fibrous cellulose; microcrystalline cellulose; talc; kaolin; TiO 2 ; SiO 2  and magnesium trisilicate, and  
 e) from 0 to 15% by weight water, in each case based on the total weight of the granules,  
   V) 0-60% of F) further additives selected from the group consisting of fluorescent whitening agents; suspending agents for dirt; pH regulators; foam-regulators; salts for regulating spray-drying and granulating properties; fragrances; antistatics; softeners; enzymes; bleaching agents; pigments; toning agents; further polymers which during the washing of textiles prevent staining by dyes found in the washing liquor which have dissolved out of the textiles under washing conditions; and bleaching agent activators, and    VI) 0-12% of G) water.    
     
     
         19 . A softener formulation which reduces dye loss or dye transfer from textile fibre materials, comprising 
 A) from 0.5 to 50% by weight, based on the total weight of the composition, of at least one softener component;    B) from 0.005 to 15% by weight, based on the total weight of the composition, of at least one thickener;    C) from 0.1 to 70% by weight, based on the total weight of the composition, of granules comprising 
 a) from 1 to 90% by weight, of polydiallyldimethylammonium compounds, bischloromethylbiphenylpolyquat compounds, the compound polyethyleneimine and basic polycondensation products,  
 b) from 2 to 80% by weight of at least one carrier selected from the group consisting of zeolites, bentonites, kieselguhr, talc, kaolin, mica, fuller's earth, cellulose, feldspar and condensation products of urea and formaldehyde,  
 c) from 0 to 60% by weight of at least one non-ionic dispersant and/or water-soluble polymer selected from the group consisting of starch, maltodextrin and carboxymethylcellulose, hydroxymethylcellulose, polyethylene glycols, ethylene oxide/propylene oxide copolymers, polyvinyl alcohols and gelatin, and  
 d) from 0 to 20% by weight of at least one further additive selected from the group consisting of wetting agents; disintegrators; fillers, water-insoluble or water-soluble dyes or pigments; dissolution accelerators; fluorescent whitening agents; aluminium silicates; powdered cellulose; fibrous cellulose; microcrystalline cellulose; talc; kaolin; TiO 2 ; SiO 2  and magnesium trisilicate, and  
 e) from 0 to 15% by weight water, in each case based on the total weight of the granules,  
   D) from 0 to 20% by weight, based on the total weight of the composition, of at least one further customary auxiliary substance, and    E) water to 100% by weight.