RU2798827C2 - Fabric care composition containing hydrophobically modified polyalkylene imine as a color-fixing polymer - Google Patents

Abstract

FIELD: fabric care.

SUBSTANCE: fabric care composition contains (i) at least one hydrophobically modified polyalkylene imine at a concentration of 0.01 to 30% by weight of the composition, wherein the hydrophobically modified polyalkylene imine contains a polyalkylene imine backbone having a weight average molecular weight greater than or equal to 200 g/mol and less than 1000 g/mol, and hydrophobic fragments that are covalently attached to the backbone of the polyalkylene imine; and (ii) at least one non-ionic, anionic and/or cationic surfactant. Also disclosed is a method for providing a color protection effect during washing and/or treatment of dyed fabrics, the use of a composition for a color protection effect during washing and/or treatment of dyed fabrics, and for fabric care products.

EFFECT: group of inventions provides a color-fixing polymer that contributes to the effective fixation of dyes in the processes of washing and/or processing linen, while demonstrating better and wider compatibility with laundry compositions.

15 cl, 9 tbl, 7 ex

Description

Field of invention

The present invention relates to hydrophobically modified polyalkyleneimines as a color fixing polymer in a fabric care formulation. The present invention also relates to a method for providing a color-fixing effect when washing a dyed fabric by using a color-fixing polymer.

State of the art invention

A known problem in washing and/or treating colored fabrics is discoloration in the appearance of the fabric, which is at least in part due to loss of color intensity, fidelity, and color definition. Such a color loss problem becomes even more acute when the laundry is treated after several wash cycles, especially for dark colors such as black, red, blue and green.

During the washing process, when the colors of the dyed fabric are poorly fixed, i.e. there is dye bleed, not only does the dyed fabric fade quickly, but also can additionally occur, as a result of relatively high dye concentrations in the wash solution, dyeing of multi-colored or white fabrics that are washed together.

In order to solve the problem of dye bleeding and color fading, several color loss mechanisms have been proposed, and various means have been proposed to prevent or reduce the degree of color loss or transfer. A dye fixative and a dye transfer inhibitor are well known for improving the appearance of dyed fabrics by minimizing the loss and transfer of dyes from fabrics as a result of washing or processing. US Pat. No. 2010/0017973 discloses a dye transfer inhibitor that can prevent color transfer during washing processes. However, it is impossible to prevent the dye from bleeding and the color fabric from fading. US Patent No. 2007/0277327 discloses detergents and cleaners containing polyamines/polyimines or their derivatives as color fixing agents that can be used in combination with soil removing polymers. However, the use of most color fixing agents in liquid laundry detergent formulations is in practice limited to formulations that do not contain any anionic surfactants or contain very low levels of anionic surfactants due to the lack of compatibility of anionic surfactants with color-fixing compounds that cause flocculation, precipitation or phase separation of the compounds.

Recently, there is still an increasing need for laundry compositions containing a color fixing agent that can improve color fastness and exhibit excellent compatibility with detergent surfactants.

Thus, it is an object of the present invention to provide a color-fixing polymer that assists in effective fixation of dyes in laundering and/or laundry processes, while demonstrating better and broader compatibility with laundry compositions.

The essence of the invention

In one aspect, the present invention relates to a fabric care composition comprising at least one hydrophobically modified polyalkyleneimine, wherein the hydrophobically modified polyalkyleneimine comprises a polyalkyleneimine backbone having a weight average molecular weight greater than or equal to 200 g/mol and less than 1000 g/mol, and hydrophobic moieties that are covalently attached to the backbone of the polyalkyleneimine.

Preferably, the unmodified backbone of the polyalkyleneimine may be polyethyleneimine, polypropyleneimine or polybutyleneimine. Preferably said unmodified polyalkyleneimine has a weight average molecular weight greater than or equal to 300 g/mol and less than 1000 g/mol, more preferably greater than or equal to 500 g/mol and less than 1000 g/mol.

In another aspect, the hydrophobically modified polyalkyleneimines are prepared by a process which includes reacting an unmodified polyalkyleneimine with a hydrophobizing agent.

According to another aspect, the present invention relates to a fabric care composition comprising a hydrophobically modified polyalkylene imine and at least one nonionic, anionic and/or cationic surfactant.

According to another aspect, the present invention relates to a method for providing an improved color protection effect during washing and/or treatment of dyed fabrics, which includes the step of contacting dyed fabrics with a washing solution that contains a hydrophobically modified polyalkyleneimine.

According to another aspect, the present invention relates to the use of a fabric care composition containing a hydrophobically modified polyalkylene imine to enhance the color protection effect during washing and/or treatment of dyed fabrics.

The inventors of the present invention unexpectedly and surprisingly found that the hydrophobically modified polyalkyleneimine of the present invention, when included in a fabric care composition, exhibits a satisfactory color fixing effect and excellent compatibility, thus achieving the above objective.

Description

Throughout the specification, including the claims, the term "comprising one" or "comprising" is to be understood as synonymous with the term "comprising at least one" unless otherwise indicated, and "between" is to be understood as inclusive.

The singular form refers to one or more than one (i.e., at least one) entity.

The term "and/or" includes the meanings "and", "or", as well as all other possible combinations of elements connected by this term.

It should be noted that when specifying any range of concentration, mass ratio or amount, any particular upper concentration, mass ratio or amount can be associated with any specific lower concentration, mass ratio or amount, respectively.

In the context of the present invention, the term "fabric care" is the broadest term that refers to the composition according to the present invention, which improves the appearance or wear resistance of fabric, especially clothing. In the context of the present invention, fabric care compositions are divided into several categories, inter alia, detergent compositions for laundry, for the appearance of the fabric, each of which is usually characterized by the presence of an ingredient or its absence. For example, "laundry detergent compositions" must contain one or more detergent surfactants, while "fabric softening composition" must contain one or more cationic quaternary ammonium compounds. The term "fabric care" can refer to laundry detergent compositions as well as fabric conditioning compositions.

In the context of the present invention, the term "hydrophobically modified polyalkyleneimine" refers to a polyalkyleneimine with hydrophobic groups chemically attached to the unmodified backbone of the polyalkyleneimine.

In the context of the present invention, the term "unmodified or not modified" refers to a polymeric substrate that is not modified or functionalized.

In the context of the present invention, the term "hydrocarbon radical" refers to any linear, branched, cyclic, acyclic, heterocyclic, saturated or unsaturated chain that contains a carbon backbone containing one or more hydrogen atoms, optionally substituted by one or more heteroatoms in the carbon backbone. or with her.

In the context of the present invention, the term "hydrophobic moiety" is a moiety that can be a saturated or unsaturated, substituted or unsubstituted, linear or branched, cyclic or acyclic hydrocarbon group.

In the context of the present invention, the term "alkyl" means a saturated hydrocarbon radical which may be linear, branched or cyclic, such as, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, pentyl , n-hexyl, cyclohexyl.

In the context of the present invention, the term "hydroxyalkyl" means an alkyl radical, more specifically an alkyl radical, which is substituted with hydroxyl groups such as, for example, hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxydecyl.

In the context of the present invention, the term "alkylene" means a divalent acyclic saturated hydrocarbon radical, including, without limitation, methylene, polymethylene, and alkyl-substituted polymethylene radicals such as, for example, dimethylene, tetramethylene, and 2-methyltrimethylene.

In the context of the present invention, the terms "alkenyl" and "alkadienyl" refer to alkyl groups having, respectively, one or two double carbon-carbon bonds in the chain.

In the context of the present invention, the term "alkenylcarbonyl" refers to the group -C(=O)R, where R is alkenyl, which may be optionally substituted.

The present invention relates to a fabric care composition comprising at least one hydrophobically modified polyalkyleneimine, wherein the hydrophobically modified polyalkyleneimine comprises a polyalkyleneimine backbone having a weight average molecular weight greater than or equal to 200 g/mol and less than 1000 g/mol, preferably greater than or equal to 300 g/mol and less than 1000 g/mol, more preferably greater than or equal to 500 g/mol and less than 1000 g/mol, and hydrophobic moieties that are covalently attached to the backbone of the polyalkyleneimine.

Hydrophobically modified polyalkyleneimines are understood to be polyalkyleneimines in which the hydrogen atoms of the primary and secondary amino groups are partially or completely replaced by linear or branched aliphatic, saturated or unsaturated hydrocarbon radicals, such as alkyl, alkenyl, alkadienyl or hydroxyalkyl radicals. Hydrocarbon radicals generally contain 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms.

Hydrophobically modified polyalkyleneimines can be prepared by a process which includes reacting an unmodified polyalkyleneimine with a hydrophobizing agent. Depending on the hydrophobizing agent used, in each case, the hydrocarbon radicals can be bonded to the nitrogen atom of the polyalkyleneimine directly or through a functional group, for example, through a carbonyl group (*-C(=O)- ^# )), through an oxycarbonyl group ((*-O -С(=O)- ^# ), through the aminocarbonyl group (*-NH-C(=O)- ^# ), through the carbonyloxyhydroxypropyl group (*-С(=O)-O-CH ₂ -CH(OH) -CH ₂ - ^# ), through a 2-hydroxycarbonylethylenecarbonyl group (*-CH(COOH)-CH ₂ -CO- ^# ) or through a radical of the formula *-CH ₂ -(C=O)-CH-(C=O)# (in the formulas above, * represents a bond to a hydrocarbon radical and # represents a bond to the nitrogen atom of the polyalkyleneimine.) The hydrocarbon radical can also form an aldimine or ketimine group with the nitrogen of the polyalkyleneimine, or be bonded to 2 nitrogens of the polyalkyleneimine through the carbon atom of the cyclic amidine group .

Preferably, the hydrophobically modified polyalkyleneimine has a hydrocarbon radical bonded to one nitrogen atom of the polyalkyleneimine, either directly or via a carbonyl group. The latter is particularly preferred. Preferably the hydrocarbon radicals are linear, more preferably the hydrocarbon radicals are saturated.

According to any of the embodiments of the present invention, the hydrocarbon radicals in the preferred hydrophobically modified poly-alkylenimines are present in the form C ₄ -C ₃₀ -alkyl, C ₄ -C ₃₀ -alkylcarbonyl, C ₄ -C ₃₀ -alkenyl, C ₄ -C ₃₀ -alkenylcarbonyl , C ₄ -C ₃₀ -alkadienyl, C ₄ -C ₃₀ -alkadienylcarbonyl and / or hydroxy-C ₄ -C ₃₀ -alkyl groups, in particular in the form of C ₆ -C ₁₈ -alkyl, C ₆ -C ₁₈ -alkylcarbonyl, C ₆ -C ₁₈ alkenyl, C ₆ -C ₁₈ alkenylcarbonyl, C ₆ -C ₁₈ alkadienyl, C ₆ -C ₁₈ alkadienylcarbonyl and/or hydroxy-C ₆ -C ₁₈ alkyl groups, particularly preferably in the form C ₈ -C ₁₆ -alkyl, C ₈ -C ₁₆ -alkylcarbonyl, C ₈ -C ₁₆ -alkenyl, C 8 -C ₁₆ -alkenylcarbonyl, C _{8 -C 16} -alkadienyl, C ₈ -C ₁₆ -alkadienylcarbonyl and / or hydroxy -C ₈ -C ₁₆ -alkyl groups, where the alkyl, hydroxyalkyl, alkenyl, alkadienyl radicals of the above groups are preferably linear.

According to some preferred embodiment, the hydrocarbon radicals are present in the form of a C ₄ -C ₃₀ -alkylcarbonyl or C ₄ -C ₃₀ -alkenylcarbonyl group, especially in the form of a C ₆ -C ₁₈ -alkylcarbonyl or C ₆ -C ₁₈ -alkenylcarbonyl group, more specifically in form C ₈ -C ₁₆ -alkylcarbonyl or C ₈ -C ₁₆ -alkenylcarbonyl group, where the alkyl and alkenyl radicals of the above groups are preferably linear.

According to any of the embodiments of the present invention, about 2 to 25 mol%, in particular 5 to 20 mol%, more specifically 6 to 15 mol%, of the nitrogen atoms of the hydrophobically modified polyalkyleneimine carry a hydrocarbon radical. Accordingly, the proportion of hydrocarbon radicals is preferably from 5 to 60 wt. %, in particular from 10 to 50 wt. % and in particular from 10 to 35 wt. %, based on the total weight of the hydrophobically modified polyalkylene imine.

The hydrophobically modified polyalkyleneimine used in the present invention may be linear or branched. In particular, branching of the polyalkyleneimine can occur in its nitrogen fractions. Linear polyalkyleneimines consist exclusively of repeating units of formula A, branched polyalkyleneimines have, in addition to linear repeating units, tertiary nitrogen atoms in accordance with formula B:

where Q represents C ₂ -C ₈ alkylene, preferably ethylene, propylene or butylene.

Preference is given to branched, hydrophobically modified polyalkyleneimines, in particular branched, hydrophobically modified polyethyleneimines, which, on the basis of the polyalkyleneimine on which they are based, have on average at least one, preferably at least 5 or at least 10 branching points per polyalkyleneimine molecule according to the formula B. In particular at least 5%, in particular at least 10% and particularly preferably at least 15%, for example 5 to 40% and in particular 15 to 35%, of the nitrogen atoms of the parent polyalkyleneimine are tertiary atoms. nitrogen. In particular, in the case of high degrees of branching, i.e. if at least 10%, in particular 15%, for example, from 10 to 40%, in particular from 15 to 35%, of the nitrogen atoms of the parent polyalkyleneimine are tertiary nitrogen atoms, the hydrophobically modified polyalkyleneimines have a structure similar to the core-shell structure, where the polyalkyleneimine fragments form the core and the hydrophobic radicals form the shell.

According to any of the embodiments of the present invention, the hydrophobically modified polyalkylene imines may be present in non-crosslinked or crosslinked form. Preferably the hydrophobically modified polyalkyleneimines are non-crosslinked. According to any of the embodiments of the present invention, the hydrophobically modified polyalkyleneimine has a weight average molecular weight in the range of 300 g/mol to 5000 g/mol, preferably 500 to 3000 g/mol, more preferably 800 g/mol to 2000 g/mol.

The hydrophobically modified polyalkyleneimines which are used in accordance with the present invention are partly known in the art or can be prepared analogously to the methods described below. Accordingly, one embodiment of the present invention relates to the use of a hydrophobically modified polyalkyleneimine obtained by a process which comprises reacting an unmodified polyalkyleneimine, in particular an unmodified branched polyalkyleneimine, and in particular an unmodified branched polyethyleneimine, with a hydrophobizing agent.

Examples of suitable hydrophobizing agents include, without limitation:

i) long chain, linear or branched carboxylic acids having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, more preferably from 8 to 16 carbon atoms, in an alkyl or alkenyl radical, such as caprylic acid, pelargonic acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, nonadecanic acid, arachidic acid, behenic acid, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid and mixtures thereof, preferably lauric acid, stearic acid, palmitic acid and oleic acid or their amide-forming derivatives such as chlorides, esters or anhydrides of said carboxylic acids and mixtures thereof;

ii) natural oils, including vegetable oils, nut oils, seed oils, animal fats and marine animal fats, which typically contain triglycerides, free fatty acids, or a combination of triglycerides and free fatty acids. Examples of suitable natural vegetable oils are soybean oil, rapeseed oil, palm oil, corn oil, cottonseed oil, coconut oil, palm kernel oil. Examples of suitable animal fats/marine animal fats are tallow, fish oil, beef tallow, seal tallow and milk fat, as well as fats obtained by hydrogenation or transesterification of these fats, and mixtures thereof;

iii) linear or branched alkyl halides having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms, in a linear or branched alkyl radical, such as octyl chloride, nonyl chloride, decyl chloride, dodecyl chloride, tetradecyl chloride , hexadecyl chloride, octadecyl chloride and mixtures thereof;

iv) alkyl epoxides having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, more preferably from 8 to 16 carbon atoms in a linear or branched alkyl radical, such as hexadecenyl oxide, dodecenyl oxide and octadecenyl oxide and mixtures thereof;

v) alkyl ketene dimers having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, in particular from 8 to 16 carbon atoms in a linear or branched alkyl radical, such as lauryl ketene, palmityl ketene, stearyl ketene and oleyl ketene dimers and mixtures thereof;

vi) cyclic dicarboxylic acid anhydrides, in particular alkyl-substituted succinic anhydrides having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, in particular from 8 to 16 carbon atoms, in a linear or branched alkyl radical, such as succinic acid dodecenyl anhydride, succinic acid tetradecenyl anhydride, succinic acid hexadecenyl anhydride, and mixtures thereof;

vii) an alkyl isocyanate having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, more preferably from 8 to 16 carbon atoms, in a linear or branched alkyl radical, such as tetradecyl isocyanate, hexadecyl isocyanate, octadecyl isocyanate and mixtures thereof;

viii) esters of chloroformic acid and linear or branched alkanes or alkenes having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms, and dialkyl ketones having a total of 4 to 30 carbon atoms carbon, in particular from 6 to 18 carbon atoms, and mixtures thereof.

viiii) linear or branched aliphatic aldehydes having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, in particular from 8 to 16 carbon atoms, and dialkyl ketones having in total from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, in particular from 8 to 16 carbon atoms, in two alkyl groups, and mixtures thereof.

According to any of the embodiments of the present invention, the unmodified polyalkyleneimines which form the base of the hydrophobically modified polyalkyleneimines contain homopolymers of ethyleneimine (aziridine) and its higher homologues, propyleneimine (methylaziridine) and butyleneimine (1,2-dimethylaziridine, 1,1-dimethylaziridine and 1- ethylaziridine), copolymers of ethyleneimine with its higher homologues, as well as graft polymers of polyamidoamines or polyvinylamines with ethyleneimine and/or its higher homologues. Also suitable are the alkyleneimine graft polymers described in WO 02/095122, such as ethyleneimine on polyamidoamines or on polyvinylamines. Such graft polymers typically have an alkylene imine weight fraction of at least 10 wt. %, in particular at least 30 wt. %, for example, from 10 to 90 wt. %, in particular from 10 to 85 wt. %, based on the total weight of the unmodified polyalkyleneimine. In some preferred embodiments, the unmodified polyalkyleneimines are branched polyalkyleneimines, preferably polyethyleneimines, in particular branched polyethyleneimines, more particularly ethyleneimine homopolymers, even more particularly branched ethyleneimine homopolymers.

According to any of the embodiments of the present invention, the unmodified polyalkyleneimine has a weight average molecular weight M _w of greater than or equal to 200 g/mol to less than 1000 g/mol. Preferably, the unmodified polyalkyleneimine has a weight average molecular weight M _w of greater than or equal to 300 g/mol to less than 1000 g/mol. More preferably, the unmodified polyalkyleneimine has a weight average molecular weight M _w of greater than or equal to 500 g/mol to less than 1000 g/mol. The molecular weights given herein refer to the molecular weights obtained by gel permeation chromatography and measured in dilute aqueous solutions at 25°C, which corresponds to the weight average molecular weight.

The present invention also relates to the reaction of an unmodified polyalkyleneimine with at least one hydrophobizing agent, which takes place according to methods known in the art. The reaction conditions naturally depend on the type and functionality of the polyalkyleneimine and the hydrophobizing agent. In some embodiments, the reaction can be carried out with or without a solvent or diluent. Examples of suitable solvents for the reaction include, without limitation, hydrocarbons, in particular aromatic hydrocarbons, for example, alkylbenzenes such as xylenes, toluene, cumene, tert-butylbenzene, and the like. In some embodiments, the reaction may proceed as a solventless reaction, which at least comprises (a) heating the mixture of polyalkyleneimine and hydrophobing agent to a melt state; (b) mixing the mixture and reacting the polyalkyleneimine with an amount of hydrophobing agent, wherein the amount of hydrophobizing agent used is sufficient to derivatize about 2 to 25 mole %, in particular about 5 to 20 mole %, more specifically 6 to 15 mole %. % nitrogen atoms of polyalkyleneimine. According to some preferred embodiment, the reaction proceeding between the unmodified polyalkyleneimine and natural oil as a hydrophobing agent comprises (a) heating a mixture of polyalkyleneimine and natural oil to a melt state; (b) stirring the mixture and reacting the polyalkyleneimine in a stream of nitrogen with an amount of natural oil at a temperature of from 80 to 120°C, where the amount of hydrophobizing agent used is sufficient to derivatize about 2 to 25 mol%, in particular about 5 to 20 mol .%, more specifically from 6 to 15 mol.% of the nitrogen atoms of the polyalkyleneimine. In some embodiments, the water-repellent agent will be used in an amount corresponding to the desired functionality, it is also possible to use the water-repellent agent in excess.

In some embodiments, the reaction may also be carried out in the presence of catalysts that improve the reactivity of the hydrophobizing agent with the polyalkyleneimine. The type of catalyst depends in a substantially known manner on the type and reactivity of the hydrophobizing agent. The catalysts are usually Lewis acids or Bronsted acids.

In some embodiments, carboxylic acids and carboxylic acid derivatives are used as a hydrophobic agent, this has proven to be advantageous for removing low molecular weight products such as water, alcohols or hydrogen chloride from the reaction mixture that are formed during the reaction. For example, when using carboxylic acids, the formed water will preferably be removed from the reaction mixture using an azeotrope or vacuum. Typical azeotrope formers are hydrocarbons, in particular alkylaromatic compounds such as toluene or xylenes.

The hydrophobically modified polyalkyleneimine is generally water soluble or water dispersible and can be used in solid and/or liquid tissue care compositions. Said fabric care compositions containing hydrophobically modified polyalkylene imine can be used for a variety of fabric care products which include, but is not limited to, laundry detergents, after-rinse conditioners, pre-treatments, tumble dryer sheets, after-wash sprays. etc.

The hydrophobically modified polyalkyleneimines of the present invention are characterized in particular by high compatibility with conventional detergent ingredients, in particular liquid detergent ingredients which include an anionic surfactant, a nonionic surfactant and optionally a cationic surfactant. Solid/liquid tissue care compositions that include the hydrophobically modified polyalkyleneimine can be prepared by a method known in the art, wherein the hydrophobically modified polyalkyleneimine can be used in powder or granule form or in liquid form, preferably used in liquid form, i.e. e. dissolved or dispersed form.

In some embodiments, hydrophobically modified polyalkylene imines can be used, for example, in those detergent compositions that contain a surfactant detergent system containing predominantly non-ionic surfactants. Preferably, the concentration of non-ionic surfactants, based on the total amount of surfactants in the fabric care composition, is from 10% to 100% by weight. %, preferably from 20% to 100 wt. %, more preferably from 30% to 100 wt. %. In some other embodiments, the hydrophobically modified polyalkyleneimines are particularly useful in those detergent formulations that may have relatively high levels of anionic surfactants in the surfactant detergent system. Preferably, the concentration of anionic surfactants, based on the total amount of surfactant in the fabric care composition, is from 10 to 100 wt. %, preferably from 20% to 100 wt. %, more preferably from 30 to 100 wt. %.

The solid composition further comprises at least one non-ionic, cationic and/or anionic surfactant. The total concentration of surfactants in the compositions can be from 0.5% to 60% and preferably from 5 to 40 wt. %. A typical amount of hydrophobically modified polyalkyleneimine used in the composition according to the present invention is from 0.01% to 30 wt. %, preferably from 0.01% to 15 wt. %, more preferably from 0.05% to 5 wt. % of composition.

The liquid composition further comprises at least one non-ionic, anionic and/or cationic surfactant. The total concentration of surfactants in the composition can be from 0.5% to 80% and preferably from 5 to 70 wt. %. A typical amount of hydrophobically modified polyalkyleneimine used in the composition according to the present invention is from 0.01% to 30 wt. %, preferably from 0.01% to 15 wt. %, more preferably from 0.05% to 5 wt. % of composition.

Depending on its intended use, the composition is adapted to the type of textiles to be washed/treated.

The surfactants used can be anionic, nonionic, amphoteric and cationic. Mixtures of these surfactants can also be used. Preferred laundry detergent compositions contain anionic and/or nonionic surfactants and mixtures thereof with other surfactants.

Suitable anionic surfactants are sulfates, sulfonates, carboxylates, phosphates and mixtures thereof. Suitable cations according to the present invention are alkali metals such as, for example, sodium or potassium, or alkaline earth metals, such as, for example, calcium or magnesium, and ammonium, substituted ammonium compounds, including mono-, di- or triethanolammonium cations, and their mixtures.

Particularly preferred are the following types of anionic surfactants:

Sulphates of (fatty) alcohols containing from 8 to 22, preferably from 10 to 18 carbon atoms, in particular sulfates of C ₉ C ₁₁ -alcohols, sulfates of C ₁₂ -C ₁₄ -alcohols, sulfates of C ₁₂ -C ₁₈ -alcohols, lauryl sulfate, cetyl sulfate, myristyl sulfate, palmityl sulfate, stearyl sulfate and tallow fatty alcohol sulfate; Sulfated alkoxylated C ₈ -C ₂₂ -alcohol (alkyl ether sulfates): compounds of this type are obtained, for example, first by alkoxylation of a C ₈ -C ₂₂ -, preferably C ₁₀ -C ₁₈ -alcohol, for example, fatty alcohol, and then by sulfation of the product alkoxylation. For alkoxylation, ethylene oxide is preferably used; linear C ₈ -C ₂₀ -alkylbenzenesulfonates (LAS), preferably linear C ₉ -C ₁₃ -alkylbenzenesulfonates and alkyltoluenesulfonates; alkanesulfonates, in particular C ₈ -C ₂₄ -, preferably C ₁₀ -C ₁₈ -alkanesulfonates; olefinsulfonates; fatty acid sulfonates and fatty acid esters; soaps such as Na- and K-salts of C ₈ -C ₂₄ -carboxylic acids and mixtures thereof.

Anionic surfactants are preferably added to the laundry composition in the form of salts. Suitable salts in the context of the present invention are, for example, alkali metal salts such as sodium, potassium and lithium salts, and ammonium salts such as hydroxyethylammonium, di(hydroxyethyl)ammonium and tri(hydroxyethyl)ammonium salts.

Examples of suitable non-ionic surfactants are the following compounds:

Alkoxylated C ₈ -C ₂₂ alcohols such as fatty alcohol alkoxylates, oxoalcohol alkoxylates and Guerbet alcohol ethoxylates, the alkoxylation can take place with ethylene oxide, propylene oxide and/or butylene oxide. Block copolymers of random copolymers may be present. Per mole of alcohol, they usually contain from 2 to 50 moles, preferably from 3 to 20 moles, of at least one alkylene oxide. The preferred alkylene oxide is ethylene oxide. Alcohols preferably have 10 to 18 carbon atoms; alkylphenol alkoxidates, in particular alkylphenol ethoxylates, which contain C ₆ -C ₁₄ alkyl chains and 5 to 30 moles of alkylene oxide; alkyl polyglycosides which contain C ₈ -C ₂₂ -, preferably C ₁₀ -C ₁₈ -alkyl chains and, as a rule, from 1 to 20, preferably from 1.1 to 5, glycosidic units; N-alkylglucamides, alkoxylates of fatty acid amides, alkoxylates of fatty acid alkanolamides, long chain amine oxides, polyhydroxy(alkoxy)fatty acid amides, dimeric surfactants and block copolymers of ethylene oxide, propylene oxide and/or butylene oxide; and their mixtures.

Examples of suitable cationic surfactants are the following compounds:

Substituted or unsubstituted, linear or branched _Quaternary ammonium salts of the type R ₁ N(CH ₃ ) ₃ ⁺ X ^- , R 1 R ₂ N(CH 3 ) ⁺ X ^- , R ₁ R _{2 R 3 N} (CH ₃ ) ⁺ X ^- or R ₁ R ₂ R ₃ R ₄ N ⁺ X ^- . The radicals R ₁ , R ₂ , R ₃ and R ₄ are each independently preferably unsubstituted alkyl with a chain length of from 8 to 24 carbon atoms, in particular from 10 to 18 carbon atoms, hydroxyalkyl containing about 1 to 4 carbon atoms, phenyl, C ₂ -C ₁₈ -alkeyl, C ₇ -C ₂₄ -aralkyl, (C ₂ H ₄ O) _x H, where x is an integer from 1 to 3, alkyl radicals containing one or more ester groups, or cyclic quaternary ammonium salts. X is a suitable anion.

Other preferred cationic surfactants may be C ₇ -C ₂₅ alkylamines; N,N-dimethyl-N-(hydroxy-C ₇ -C ₂₅ -alkyl)ammonium salts; mono- and di(C ₇ -C ₂₅ -alkyl)dimethylammonium compounds quaternized with alkylating agents; ester salts of quaternary ammonium, in particular quaternized esterified mono-, di- and trialkanolamines, which have been esterified with C ₈ -C ₂₂ carboxylic acids; quaternized ammonium imidazoline and its derivatives.

Typical examples of amphoteric or zwitterionic surfactants are alkyl betaines, alkylamido betaines, amino propionates, aminoglycinates or amphoteric imidazolinium compounds. Preferred amphoteric surfactants are cocoamphocarboxypropionate, cocoamidocarboxypropionic acid, cocoamphocarboxyglycinate (also referred to as cocoamphodiacetate), and cocoamphoacetate. Other preferred amphoteric surfactants are alkyl dimethyl betaines and alkyl dipolyethoxy betaines with an alkyl radical having from about 8 to about 22 carbon atoms, which may be linear or branched, preferably from about 12 to about 18 atoms.

Additional laundry ingredients that can be used according to the present invention include inorganic and/or organic components to reduce the degree of water hardness.

These components may be present in fabric care compositions in weight proportions from about 5% to about 80%. The inorganic components include, for example, alkali metal, ammonium and alkanolammonium salts of polyphosphates, pyrophosphates and glassy polymeric metaphosphates, phosphonates, silicates, carbonates including bicarbonates and sesquicarbonates, sulfates and aluminosilicates. Examples of aluminosilicate components are crystalline and amorphous aluminosilicates with ion exchange properties, such as in particular zeolites, various types of zeolites are suitable, in particular zeolites A, X, B, P, MAP and HS in their Na form or in forms in which Na is partially replaced by other cations such as Li, K, Ca, Mg or ammonium; Examples of silicate components are alkali metal silicates, in particular with a SiO ₂ :Na ₂ O ratio of 1.6:1 to 3.2:1, and phyllosilicates, amorphous silicates such as sodium metasilicate and amorphous disilicate. Examples of carbonate and hydrocarbonate components are those which can be used in the form of their alkali metal, alkaline earth metal or ammonium salts. A preferred example of a polyphosphate component is pentasodium triphosphate. Organic components include, for example, low molecular weight carboxylic acids such as citric acid, hydrophobically modified citric acid, for example, agaric acid, malic acid, tartaric acid, gluconic acid, glutaric acid, succinic acid, imidodisuccinic acid, oxysuccinic acid, propanetricarboxylic acid, butanetetracarboxylic acid acid, cyclopentanetetracarboxylic acid, alkyl and alkenylsuccinic acids, e.g. alkyl and alkenylsuccinic acids and aminopolycarboxylic acids, e.g. , ethylenediaminesuccinic acid and methyl and ethylglycinedioacetic acid or their alkali metal salts; oligomeric and polymeric carboxylic acids, such as homopolymers of acrylic acid and aspartic acid, oligomaleic acids, copolymers of maleic acid with acrylic acid, methacrylic acid or C ₂ -C ₂₂ -olefins, for example isobutene or long-chain alpha-olefins, simple vinyl C ₁ - C ₈ -alkyl esters, vinyl acetate, vinyl propionate, esters of (meth)acrylic acid and C ₁ -C ₈ -alcohols and styrene; phosphonic acids such as, for example, 1-hydroxyethylene(1,1-diphosphonic acid), aminotri(methylenephosphonic acid), ethylenediaminetetra(methylenephosphonic acid) and diethylenetriaminepenta(methylenephosphonic acid) and their alkali metal salts.

The fabric care composition of the present invention may further contain conventional adjuvants or other substances that enhance the cleaning action, serve to treat or care for the textile material to be washed, or modify the performance of the fabric care composition.

Examples of suitable excipients include those described in US Pat. No. 3,936,537, eg enzymes such as proteases, lipases, cellulases and amylases, mannanases; graying inhibitors, in particular carboxymethyl cellulose and vinyl acetate graft polymers on polyethylene glycol; bleaches, in particular adducts of hydrogen peroxide and inorganic salts such as sodium perborate monohydrate, sodium perborate tetrahydrate and sodium carbonate perhydrate, and percarboxylic acids such as phthalimidopercaproic acid; bleach activators, in particular N,N,N',N'-tetraacetylethylenediamine, sodium p-nonanoyloxybenzenesulfonate and N-methylmorpholinium acetonitrile methyl sulfate

Other suitable excipients are, in particular, enzyme stabilizers, foam enhancers, foam limiters, anti-tar and/or anti-corrosion agents, suspending agents, dyes, fillers, optical brighteners, disinfectants, alkalis, hydrotropic compounds, antioxidants, perfumes, solvents, solubilizers. , anti-redeposition agents, dispersants, processing aids, plasticizers, antistatic auxiliaries and soil-repellent polymers.

The fabric care composition of the present invention may further comprise a dye transfer inhibitor. Examples of such a dye transfer inhibitor are polyamine N-oxides such as, for example, poly-(4-vinylpyridine N-oxide), copolymers of N-vinylpyrrolidone with N-vinylimidazole and optionally other monomers, homopolymers and copolymers of 4-vinylpyridine reactive with chloroacetic acid. A significant disadvantage of dye transfer inhibitors is that they not only bind the dye released from the textile and present in the washing solution, but, in addition, they can also remove the dye from the textile and thus contribute to the fading of the washed dyed fabric.

Other detergent ingredients are well known. A detailed description can be found, for example, in Wo-A-99/06524 and 99/04313; in Liquid Detergents, Editor: Kuo-Yann Lai, Surfactant Sci. Ser., Vol.67, Marcel Decker, New York, 1997, p.272-304.

The present invention also relates to a method for preparing a fabric care composition having improved color protection properties, which includes the step of adding a hydrophobically modified polyalkylene imine to the composition. In particular, the present invention relates to a method for providing an improved color protection effect during cleaning and or treatment of dyed fabrics, which includes contacting dyed fabrics with a cleaning solution that contains a hydrophobically modified polyalkylene imine. More specifically, the improved color protection effect is due to the color fixing effect.

materials

Polyethyleneimine (Lupasol FG, marketed by BASF)

Palm kernel oil sold by Shanghai Jinyang Co., Ltd

EMPA 130: C.I. Direct Red 83.1 on cotton (commercially available from Swissatest, Swissatest Testmaterialien AG, Switzerland)

EMPA 133: C.I. Direct Blue 71 on cotton (commercially available from Swissatest, Swissatest Testmaterialien AG, Switzerland)

Soiled fabrics:

JB 01: Soot-on-cotton mineral oil, Chinese Detergency Test Standard

JB 03: Pigmented Cotton Seed Oil, Chinese Washing Power Test Standard

Tested white fabrics:

WFK 10A: Standard cotton (commercially available from wfk testgewebe GmbH, Germany);

WFK 20A: Polyester/Cotton (65%/35%) (commercially available from wfk testgewebe GmbH, Germany)

WFK 80A: cotton jersey (commercially available from wfk testgewebe GmbH, Germany)

Clay Oil WFK: Produced using 20% WFK clay (code 05203, commercially available from wfk testgewebe GmbH, Germany) with 1.25% mineral oil and 3.75% peanut oil in water.

Determination of molecular weight

The weight average molecular weight can be measured by gel permeation chromatography (GPC) using TSKgel GMPWXL columns, an aqueous solution containing 1.8% acetic acid and 0.3 mol/l sodium acetate as eluent, and polyethylene glycol salt as standards. Values outside this elution range are extrapolated.

Examples

Obtaining hydrophobically modified polyethyleneimine according to the present invention (unmodified polyethyleneimine has M _w =800 g/mol)

Polymer 1: 120 g of polyethyleneimine (M _w =800 g/mol) and 20.3 g of hexanoic acid were mixed and purged with a stream of nitrogen. The mixture was heated to 150° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellow liquid. The proportion of hydrocarbon radicals is 14.4% based on the mass of polyethyleneimine.

Polymer 2: 120 g of polyethyleneimine (M _w =800 g/mol) and 25.1 g of octanoic acid were mixed and purged with a stream of nitrogen. The mixture was heated to 150° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellow liquid. The proportion of hydrocarbon radicals is 18.5% based on the mass of polyethyleneimine.

Polymer 3: 60 g of polyethyleneimine (M _w =800 g/mol) and 17.5 g of lauric acid were mixed and purged with a stream of nitrogen. The mixture was heated to 150° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellow liquid. The proportion of hydrocarbon radicals is 26.6% based on the mass of polyethyleneimine.

Polymer 4: 900 g of polyethyleneimine (M _w = 800 g/mol) and 297 g of palm kernel oil were mixed and purged with a stream of nitrogen. The mixture was heated to 90° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellow liquid. The proportion of hydrocarbon radicals is 28.7% based on the mass of polyethyleneimine.

Polymer 5: 90 g of polyethyleneimine (M _w =800 g/mol) and 29.9 g of myristic acid were mixed and purged with a stream of nitrogen. The mixture was heated to 150° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellow liquid. The proportion of hydrocarbon radicals is 30.7% based on the mass of polyethyleneimine.

Polymer 6: 90 g of polyethyleneimine (M _w =800 g/mol) and 33.5 g of palmitic acid were mixed and purged with a stream of nitrogen. The mixture was heated to 150° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellow paste. The proportion of hydrocarbon radicals is 34.8% based on the mass of polyethyleneimine.

Polymer 7: 80 g of polyethyleneimine (M _w =800 g/mol) and 33.1 g of stearic acid were mixed and purged with a stream of nitrogen. The mixture was heated to 150° C. and stirred. The reaction was carried out for 6 hours and the product was obtained as a yellowish paste. The proportion of hydrocarbon radicals is 38.9% based on the mass of polyethyleneimine.

Preparation of comparative hydrophobically modified polyethyleneimine (unmodified polyethyleneimine has M _w from 1300 to 5000 g/mol)

Comparative polymer 1 was obtained by the reaction of polyethyleneimine (M _w =2000 g/mol) and lauric acid under the conditions described in US patent No. 2010/0017973. The proportion of hydrocarbon radicals is 25.6% based on the mass of polyethyleneimine.

Comparative polymer 2 was obtained by the reaction of polyethyleneimine (M _w =1300 g/mol) and lauric acid under the conditions described in US patent No. 2010/0017973. The proportion of hydrocarbon radicals is 25.6% based on the mass of polyethyleneimine.

Comparative polymer 3 was obtained by the reaction of polyethyleneimine (M _w =5000 g/mol) and lauric acid under the conditions described in US patent No. 2010/0017973. The proportion of hydrocarbon radicals is 28.0% based on the mass of polyethyleneimine.

Comparative polymer 4 was obtained by the reaction of polyethyleneimine (M _w =5000 g/mol) and palmitic acid under the conditions described in US patent No. 2010/0017973. The proportion of hydrocarbon radicals is 36.5% based on the mass of polyethyleneimine.

Comparative polymer 5 was obtained by the reaction of polyethyleneimine (M _w =5000 g/mol) and palmitic acid under the conditions described in US patent No. 2010/0017973. The proportion of hydrocarbon radicals is 115.8% based on the mass of polyethyleneimine.

Color Fixing Efficiency Test

Selected dyed fabrics (EMPA 130 and EMPA 133) were washed in the presence of a white cotton test cloth using a liquid detergent composition (the detergent composition was formulated at pH 7.0 to 9.0 and the composition is shown in Table 2) at 40°C and 60°C with the addition of the inventive color-fixing polymer. After the wash cycle, the fabrics were rinsed, wrung out and dried. To determine the effect of color protection, the fabrics were evaluated instrumentally using a Datacolor Model Type ELREPHO reflectance spectrometer before and after washing. From the reflection data readings, the values of L*, a*, b*, Υ were obtained, which were further expressed in terms of ΔΕ and ΔΥ.

For the color fixing effect, ΔΥ was taken for the characteristic, which was calculated from the Υ value for luminance according to the CIE 1931 ΧΥΖ color space according to the following equation:

Δ Υ=Y _{after washing} - Y _initial

For the dye transfer inhibition effect, the ΔΕ value was taken as commonly used in the art. ΔΕ was calculated as the CIE 1976 color difference according to DIN EN ISO 11664-4 (June 2012) according to the following equation:

ΔΕ=(ΔL* ² +Δa* ² +Δb* ² ) ^1/2

Where

ΔL*=L* _{after washing} - L* _initial ;

Δa*=Δa* _{after washing} - a* _initial ; And

Δb*=b* _{after washing} - b* _initial

The values of L* _initial , a* _initial and b* _initial were measured on the tested white fabric before washing. The values of L* _{after washing} , a* _{after washing} and b* _{after washing} were measured on the test white fabric after washing. Standard colorimetric measurements were used to obtain L*, a* and b* values.

Fabrics with dye bleed show higher absolute ΔΥ values compared to the original pre-test brightness, higher dye bleed and lower color fixation.

For the test white fabric, higher ΔΕ values are observed compared to the original whiteness before the test, a higher dye transfer is found.

Any of the well known methods for preparing a detergent composition can be used to obtain a detergent composition according to the present invention. The washing conditions are shown in Table 1. The detergent composition used is shown in Table 2. The test results for the color fixing effect and the dye transfer inhibition effect are listed in Table 3 and Table 4.

LAS: linear alkylbenzenesulfonate Disponil LDBS

AEO: C12/C14 fatty alcohol (7EO) Lutensol A7N

Control: A liquid detergent composition prepared without any color-fixing polymer.

P1-P7: Polymers according to the present invention 1-7

CP1-CP5: Comparative polymers 1-5

Nd: not defined

As clearly shown in Table 3, formulations containing the polymers of the present invention were unexpectedly found to exhibit improved color fixation and lower dye bleed effect with lower absolute ΔΥ values compared to formulations containing comparative polymers (M _w above 1000 g /mol).

Control sample: liquid detergent composition obtained without any fixing polymer.

P1-P7: Polymers according to the present invention 1-7

As shown in Table 4, formulations containing the polymers of the present invention were found to provide a good dye transfer inhibition effect with lower ΔΕ values compared to formulations without a color-fixing polymer.

Liquid detergent compositions were obtained according to the composition shown in Table 2 by varying the concentration of the polymer of the present invention 4. The color fixing effect and the dye transfer inhibition effect of the compositions were tested under the same washing conditions as shown in Table 2. The results are shown in Table 5 .

Control sample: liquid detergent composition obtained without any fixing polymer.

The results in Table 5 clearly show that all formulations containing polymer 4 of the present invention at different concentrations can produce satisfactory color fixing and dye transfer inhibition effects.

Composition testing for compatibility

0.2 wt. % polymer 4 according to the present invention and comparative polymer 5 were added respectively to each aqueous solution of surfactant or to each composition during the usual process of obtaining the composition. Each composition contains a total concentration of surfactant 30 wt. %, but with a different ratio of anionic/nonionic surfactant. Each polymer sample was held for 1 week and its appearance was checked visually. The results are presented in table 6.

AEO: C12/C14 fatty alcohol (7EO) Lutensol A7N

AES: Texapon alcohol ethoxysulfate N 70

LAS: linear alkylbenzenesulfonate Disponil LDBS

Compatibility tests were carried out with formulations containing various surfactants, in particular formulation A and formulation C, which contain anionic surfactants as main components in surfactant mixtures.

As shown in Table 6, it was surprisingly found that formulations containing polymer 4 according to the present invention produce stable and clear solutions with improved compatibility compared to formulations containing comparative polymer 5 (M _w >1000 g/mol).

Detergency testing

The washing power test was also carried out with detergent compositions containing polymers 3 and 4. according to the present invention Washing conditions are given in table 7. Detergent compositions were prepared in accordance with the compositions listed in table 8.

Whiteness test method

The degree of whiteness of the test fabric was used to determine the degree of soiling. The whiteness difference was determined by photometric reflectivity measurement using an Elrepho 2000 photometer (Datacolor) at a wavelength of 457 nm.

For white test fabrics, higher values of whiteness reduction are observed compared to the original brightness before testing, and higher redeposition of soils on the fabric is found.

The whiteness test results are shown in Table 9.

AEO: C12/C14 fatty alcohol (7EO) Lutensol A7

AES: Texapon alcohol ethoxysulfate Ν 70

LAS: linear alkylbenzenesulfonate Disponil LDBS

According to the results shown in Table 9, it was also surprisingly found that a hydrophobically modified polyalkyleneimine as a color fixing polymer in detergent formulations can prevent the redeposition of dirt that is removed from the fabric with the laundry detergent from re-depositing on the cleaned/washed fabric. during the wash cycle. A particularly favorable interaction between the detergent surfactant and the hydrophobically modified polyethyleneimine of the present invention has been observed resulting in reduced re-deposition of contaminant such as clay and oil on fabrics.

Claims (15)

1. A fabric care composition comprising (i) at least one hydrophobically modified polyalkyleneimine at a concentration of 0.01 to 30% by weight of the composition, wherein the hydrophobically modified polyalkyleneimine contains a polyalkyleneimine backbone having a weight average molecular weight greater than or equal to 200 g/mol and less than 1000 g/mol, and hydrophobic moieties that are covalently attached to the backbone of the polyalkyleneimine; and (ii) at least one non-ionic, anionic and/or cationic surfactant. 2. The fabric care composition of claim 1 wherein the polyalkyleneimine backbone has a weight average molecular weight greater than or equal to 300 g/mol and less than 1000 g/mol, preferably greater than or equal to 500 g/mol and less than 1000 g/mol. 3. The fabric care composition of claim 1, wherein 2 to 25 mole %, preferably 5 to 20 mole %, of the nitrogen atoms of the polyalkyleneimine bear an aliphatic, saturated or unsaturated hydrophobic moiety. 4. The fabric care composition according to claim 1, wherein the proportion of hydrophobic moieties, based on the total weight of the hydrophobically modified polyalkylene imine, is 5 to 60%, preferably 10 to 50%, more preferably 10 to 30% by weight. 5. The fabric care composition of claim 1 wherein the hydrophobic moieties are in the form of C4-C30 alkyl, C4-C30 alkylcarbonyl, C4-C30 alkenyl, C4-C30 alkenylcarbonyl, C4-C30 alkadienyl, C4-C30 alkadienylcarbonyl and/or hydroxy-C4-C30 alkyl groups, preferably in the form of C6-C18 alkyl, C6-C18 alkylcarbonyl, C6-C18 alkenyl, C6-C18 alkenylcarbonyl, C6-C18 alkadienyl, C6-C18 alkadienylcarbonyl and/or hydroxy-C6-C18 alkyl groups , more preferably in the form of C8-C16 alkyl, C8-C16 alkylcarbonyl, C8-C16 alkenyl, C8-C16 alkenylcarbonyl, C8-C16 alkadienyl, C8-C16 alkadienylcarbonyl and/or hydroxy-C8-C16 alkyl groups. 6. The fabric care composition of claim 1 wherein the hydrophobically modified polyalkyleneimine has a weight average molecular weight in the range of 300 to 5000 g/mol, preferably 500 to 3000 g/mol, more preferably 800 to 2000 g/mol. 7. The fabric care composition of claim 1 wherein the hydrophobically modified polyalkyleneimine in the backbone of the polyalkyleneimine is branched. 8. The fabric care composition of claim 1, wherein the hydrophobically modified polyalkyleneimines contained in the composition are prepared by a process which comprises reacting an unmodified polyalkyleneimine with a hydrophobizing agent. 9. The fabric care composition of claim 8 wherein the hydrophobizing agent is selected from the group consisting of linear or branched carboxylic acids having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms. , natural oils, linear or branched alkyl halides having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms, alkyl epoxides having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms carbon, more preferably 8 to 16 carbon atoms, alkyl ketene dimers having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms, cyclic dicarboxylic acid anhydrides having 4 to 30 carbon atoms carbon, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms, alkyl isocyanates having 4 to 30 carbon atoms, preferably 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms, chloroformic acid esters and linear or branched alkanes or alkenes having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, more preferably from 8 to 16 carbon atoms, and linear or branched aliphatic aldehydes having from 4 to 30 carbon atoms, preferably from 6 to 18 carbon atoms, more preferably 8 to 16 carbon atoms. 10. The fabric care composition of claim 1 wherein the backbone of the polyalkyleneimine is branched. 11. The fabric care composition of claim 1 wherein the hydrophobically modified polyalkyleneimine is a hydrophobically modified polyethylenimine, a hydrophobically modified polypropyleneimine, or a hydrophobically modified polybutyleneimine. 12. The fabric care composition of claim 1, wherein the surfactant, based on the total weight of the composition, is from 0.5 to 80% by weight. 13. A method for providing a color protection effect during washing and/or treatment of dyed fabrics, which includes the step of contacting the dyed fabric with a washing solution that contains a fabric care composition according to any one of paragraphs. 1 - 12. 14. The use of a fabric care composition according to any one of paragraphs. 1 to 12 for a color protection effect during washing and/or treatment of dyed fabrics. 15. The use of a fabric care composition according to any one of paragraphs. 1-12 to provide fabric care products selected from laundry detergents, after-rinsing conditioners, pretreatments, tumble dryer sheets, and post-wash spray products.