Method and kit for reducing wrinkles on a textile

Abstract

The present invention relates to a method and a kit for reducing wrinkles on a textile. The use of a carbodiimide or a polycabodiimide for reducing wrinkles on a textile is also disclosed.

Description

[0001] The present invention relates to a method and a kit for reducing wrinkles on a textile, in particular a textile comprising cotton.

[0002] Textiles comprise textile raw materials, such as natural and synthetic fibers, which can be further processed into fabrics or clothing. Natural fibers can include wool and cellulose, such as cotton or regenerated cellulose fibers (for example, modal or lyocell). Consumers often associate textiles or clothing made from natural materials with positive qualities regarding comfort. However, a common disadvantage of such textiles is their tendency to wrinkle easily during wear, after washing, and after drying. This wrinkling, or tendency to wrinkle, likely results from the swelling of the textile fibers and their sometimes limited elastic recovery force after deformation.

[0003] It has therefore long been common practice to iron textiles after washing and drying, thus bringing them into the desired shape and removing creases. However, it would be advantageous for consumers to be able to reduce the formation of creases as part of textile care, ideally eliminating the need for ironing altogether or at least reducing the duration of ironing processes.

[0004] It can be considered a task to provide a procedure and a kit for reducing wrinkles on a textile, which can be carried out or used by a consumer as part of textile care.

[0005] Surprisingly, it was found that wrinkles on a textile, in particular a textile comprising cotton, can be reduced by bringing it into contact with a composition (CDI) wherein the composition (CDI) comprises at least one carbodiimide or at least one polycarbodiimide.

[0006] The invention relates to a method for reducing wrinkles on a textile, in particular a textile comprising cotton, which includes the following process steps in the specified order: a) optional pre-washing of the textile; b) bringing a composition (CDI) into contact with the textile, wherein the composition (CDI) contains at least one carbodiimide or at least one polycarbodiimide, c) Allow to act for a period of 10 seconds to 90 minutes, preferably 1 minute to 75 minutes, more preferably 5 minutes to 60 minutes and particularly preferably 10 minutes to 55 minutes, d) optionally rinse the textile with water, e) Bringing an aqueous composition (A) into contact with the textile, wherein the composition (A) has a pH value of ≤ 6.5, preferably 1.0 to 6.5, more preferably 2.5 to 6.5; more preferably 3.0 to 6.5 and particularly preferably 3.0 to 6.0, each measured at 20 °C, f) Allow to act for a period of 10 seconds to 90 minutes, preferably 1 minute to 75 minutes, more preferably 5 minutes to 60 minutes and particularly preferably 10 minutes to 55 minutes, g) optionally repeat steps e) and f) and h) Drying the textile.

[0007] Reducing creases on a textile means that, after treatment, the textile has improved with respect to at least one test parameter relevant for determining creases compared to its untreated state. Suitable test parameters include, for example, stretchability, elasticity, and crease angle, as determined according to Crease Resistance DIN 53890.

[0008] The materials used to treat the textiles include fibers of animal origin such as angora, sheep's wool, and cashmere; synthetic fibers such as elastane, polyacrylic, polyester, and polyamide; natural fibers such as cotton, linen, sisal, jute, and hemp; regenerated cellulose fibers such as modal viscose or lyocel; and blends of at least two of these materials. The effect is particularly pronounced in textiles made of or containing natural fibers, especially cotton. Therefore, preferred embodiments of the method and the kit relate to textiles made of or containing natural fibers, particularly cotton.

[0009] Following step f), the optional step g) or step h), the textile can be ironed with a standard household iron.

[0010] The contacting in step b) and the exposure in c) can be carried out at a temperature in the range of 10 °C to 100 °C, preferably at 20 °C to 80 °C, more preferably at 30 °C to 60 °C and even more preferably at 35 °C to 45 °C.

[0011] The contacting in step d) and the exposure in e) can be carried out at a temperature in the range of 1 °C to 60 °C, preferably at 5 °C to 50 °C, more preferably at 10 °C to 40 °C and even more preferably at 15 °C to 30 °C.

[0012] The process can be carried out as part of a conventional washing process, which can be performed using a household washing machine or by hand. The at least one carbodiimide or at least one polycarbodiimide is preferably used in the rinsing step, i.e., after the actual washing step. However, it is also possible to use the at least one carbodiimide or at least one polycarbodiimide together with a detergent in the washing step. The at least one carbodiimide or at least one polycarbodiimide can be a component of compositions used in such washing processes, or it can be added separately to such compositions or to the aqueous compositions containing them.

[0013] The at least one carbodiimide or at least one polycarbodiimide can be present as such, but also in a form that facilitates use by the user, for example, blended or granulated with carrier substances, binders, coating materials, extrusion aids, flow improvers, stabilizers, solvents, rheology modifiers and / or emulsifiers. This embodiment makes it easy for the consumer to reap the benefits of the process.

[0014] The at least one carbodiimide or at least one polycarbodiimide can be present in a liquid or solid composition, and single dosing (pouch packaging) of the composition is also possible.

[0015] Treating a textile has the advantage that the ironing processes usually required after washing can be at least reduced, as the textile has fewer creases. Furthermore, the durability of treated textiles can be increased, since the mechanical stress caused by ironing can be avoided or at least significantly reduced.

[0016] In a preferred embodiment, the at least one polycarbodiimide is selected from compounds of the structural formula (CDI-I) wherein X1 and X2 independently represent an oxygen atom, a sulfur atom, or an NH group, R1 and R2 independently represent a group selected from a hydrocarbon group, preferably from at least one alkyl group, which may optionally be interrupted by one or more heteroatoms, further selected from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydealkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide, e.g. propyl epoxide or butyl epoxide, and azacyclopropane groups, as well as mixtures thereof; - n for an integer in the range of 1 to 200, preferably 2 to 200, particularly preferably 3 to 150, further particularly preferably 4 to 100, further particularly preferably 4 to 50, further particularly preferably 4 to 10, extremely preferably 6 to 7; and - A represents a divalent group selected from the substituents shown below:

[0017] For the purposes of this application, the following definitions shall apply: - The term "alkyl" group refers to a linear or branched, saturated group comprising 1 to 30 carbon atoms; - The term "aminoalkyl" refers to a linear or branched, saturated group comprising 1 to 30 carbon atoms and an -NH2 group; - The term "hydroxyalkyl" refers to a linear or branched, saturated group comprising 1 to 30 carbon atoms and an -OH group; - The “alkylene” group represents a divalent linear or branched, saturated C1-C4 hydrocarbon-based group, in particular methylene, ethylene, propylene, isopropylene, n-propylene, n-butylene, iso-butylene or tert-butylene; - The term "cycloalkyl" or "alicycloalkyl" group refers to a saturated monocyclic or bicyclic, preferably monocyclic, hydrocarbon-based group comprising 3 to 20 carbon atoms, preferably 4 to 15 carbon atoms, particularly preferably 5 to 13 carbon atoms, more preferably 6 to 12 carbon atoms, and more preferably 7 to 10 carbon atoms, in particular a cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl, or norbornyl group, and particularly preferably a cyclopropyl, cyclopentyl, or cyclohexyl group, wherein the cycloalkyl group may optionally be substituted with one or more C1-C4 alkyl groups, preferably with methyl, and / or optionally with one or more C1-C4 alkylene groups, preferably with methylene or with isopropylene; the cycloalkyl group is then particularly preferably an isobornyl group. - The term “cycloalkylene” refers to a divalent cycloalkyl group as defined above for “cycloalkyl”, wherein preferred cycloalkylene groups have 3 to 15 carbon atoms; - The term "aryl" group refers to a monocyclic, bicyclic, or bicyclic aromatic hydrocarbon-based group comprising 6 to 14 carbon atoms, preferably 6 to 12 carbon atoms; wherein preferred aryl groups are selected from phenyl, naphthyl, anthryl, phenanthryl, and biphenyl, particularly preferably phenyl, wherein the aryl group may optionally be substituted with one or more C1-C4 alkyl groups, preferably with methyl; particularly preferably, the aryl group is then a group selected from tolyl, xylyl, and methylnaphthyl; - The ‘arylene’ group represents a divalent aryl group according to the above definition of ‘arylene’; where ‘arylene’ preferably represents phenylene; - “heterocyclic” group means a saturated or unsaturated, non-aromatic or aromatic, monocyclic or polycyclic hydrocarbon-based group comprising one or more heteroatoms, preferably 1 to 5 heteroatoms, selected from O, S or N, wherein the heterocycle comprises 3 to 20 ring atoms, preferably 5 to 10 ring atoms, such as imidazolyl, pyrrolyl and furanyl; - The ‘heterocyclic alkylene’ group represents a divalent heterocyclic group according to the above definition of ‘heterocyclic’; - "Reactive" group refers to a group that is capable of forming a covalent bond with another group, whether the same or different, through a chemical reaction. Carbodiimides and polycarbodiimides

[0018] In the processes for reducing wrinkles on a textile, a composition (CDI) is brought into contact with the textile in a process step, wherein the composition (CDI) contains at least one carbodiimide or at least one polycarbodiimide and mixtures thereof.

[0019] The composition (CDI) may contain at least two different carbodiimides or polycarbodiimides, as well as mixtures thereof.

[0020] A carbodiimide is a compound that has a divalent carbodiimide group of the general structural formula -N=C=N- in the molecule.

[0021] A polycarbodiimide is a compound that has two or more carbodiimide groups of the general structural formula -N=C=N- in the molecule; preferably no more than 200 carbodiimide groups are contained in the molecule, particularly preferably no more than 150 carbodiimide groups, and extraordinarily preferably no more than 100 carbodiimide groups.

[0022] The term "(Poly)carbodiimide" includes carbodiimides and polycarbodiimides. Polycarbodiimides with 2 to 200 carbodiimide groups are preferred, 3 to 150 carbodiimide groups are preferred, 4 to 100 carbodiimide groups are preferred, 4 to 50 carbodiimide groups are preferred, and 4 to 10 carbodiimide groups are preferred, with 6 to 7 carbodiimide groups being preferred.

[0023] Carbodiimide groups are obtained from two isocyanate groups with the elimination of carbon dioxide: RN=C=O + O=C=NR → RN=C=NR + CO2

[0024] Starting from diisocyanates, oligomeric compounds with multiple carbodiimide groups and optionally isocyanate groups, especially terminal isocyanate groups, can be obtained; these are called polycarbodiimides. Any remaining isocyanate groups can be further reacted with, for example, alcohols, thiols, or primary or secondary amines to form urethane, thiourethane, or urea groups. Therefore, polycarbodiimides can contain not only free isocyanate groups but also urethane, thiourethane, or urea groups.

[0025] The production of polycarbodiimides from diisocyanates is known.

[0026] The average functionality of carbodiimide units refers to the average number of carbodiimide units in a polycarbodiimide molecule. The average functionality can also be a fraction. Preferred methods and kits for the conditioning treatment of keratin fibers are characterized in that the polycarbodiimide used therein has an average functionality of 1 to 10, preferably 2 to 7, and particularly preferably 3 to 7. If the average functionality is higher than 10, the dispersibility of the polycarbodiimide in water is low.

[0027] Preferred methods and kits for reducing wrinkles on a textile are characterized in that the polycarbodiimide used therein is obtained by polycondensation of at least one aliphatic, cycloaliphatic, or aromatic diisocyanate selected from the group consisting of methylene diisocyanate, dimethylene diisocyanate, trimethylene diisocyanate, tetramethylene diisocyanate, pentamethylene diisocyanate, dipropyl ether diisocyanate, 2,2-dimethylpentane diisocyanate, 3-methoxyhexane diisocyanate, octamethylene diisocyanate, 2,2,4-trimethylpentane diisocyanate, nonamethylene diisocyanate, decamethylene diisocyanate, 3-butoxyhexane diisocyanate, 1,4-butylene glycol dipropyl ether diisocyanate, thiodihexyl diisocyanate, metaxylylene diisocyanate, paraxylylene diisocyanate, tetramethylxylylene diisocyanate, 4,4'-dicyclohexylmethane diisocyanate (H12MDI), and isophorone diisocyanate (IPDI). Hexamethylene diisocyanate (HDI), hydrogenated xylylene diisocyanate (H6XDI), 1,12-diisocyanate dodecane (DDI),Norbornane diisocyanate (NBDI) and 2,4-bis(8-isocyanatoctyl)-1,3-dioctylcyclobutane (OCDI).

[0028] Particularly preferred diisocyanates are isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), hydrogenated xylylene diisocyanate (H6XDI), and 4,4'-dicyclohexylmethane diisocyanate (H12MDI). The cycloaliphatic diisocyanate 4,4'-dicyclohexylmethane diisocyanate (H12MDI) is especially preferred.

[0029] For processes and kits, it is particularly advantageous if the polycarbodiimide used therein is reacted further with at least one hydrophilic compound that bears a group reactive towards isocyanate and / or carbodiimide groups, so that the resulting polycarbodiimide subsequently bears hydrophilic substituents that increase its water solubility or water dispersibility.

[0030] A composition (CDI) may also contain at least one alkalizing agent. An alkalizing agent is used to adjust a desired pH value. The alkalizing agent contained in the composition (CDI) is selected from ammonia, alkanolamines, alkali hydroxides, basic amino acids, alkali metal metasilicates, alkali metal disilicates, alkali phosphates, and dialkal monohydrogen phosphates, as well as mixtures of these substances.

[0031] Particularly preferred alkalizing agents are selected from alkanolamines, alkali hydroxides, basic amino acids, alkali metal metasilicates, alkali metal disilicates, alkali phosphates, and dialkali monohydrogen phosphates, as well as mixtures of these substances. The alkali metal ions in the aforementioned alkalizing salts are preferably lithium, sodium, or potassium, particularly sodium or potassium.

[0032] The basic amino acids that can be used as alkalizing agents are preferably selected from the group consisting of L-arginine, D-arginine, D,L-arginine, L-lysine, D-lysine, D,L-lysine, and mixtures thereof. Particularly preferred basic amino acids are L-arginine, L-lysine, and mixtures thereof.

[0033] The alkali hydroxides used as alkalizing agents are preferably selected from sodium hydroxide and potassium hydroxide, or mixtures thereof. Potassium hydroxide is particularly preferred.

[0034] The alkanolamines that can be used as alkalizing agents preferably have 2 to 9 carbon atoms in the molecule and are particularly preferably selected from primary amines with a C2-C6 alkyl core structure bearing at least one hydroxyl group. Particularly preferred alkanolamines are selected from the group consisting of 2-aminoethanol-1-ol (monoethanolamine), 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropan-1,2-diol, and 2-amino-2-methylpropan-1,3-diol, as well as mixtures thereof. Most particularly preferred alkanolamines are selected from the group consisting of 2-aminoethanol-1-ol, 2-amino-2-methylpropan-1-ol, and 2-amino-2-methylpropan-1,3-diol. 2-Aminoethan-1-ol is particularly preferred. However, secondary amines, such as diisopropanolamine (1,1'-iminodipropan-2-ol), are also suitable alkalizing agents.

[0035] In particularly preferred processes and kits, compositions used contain 2-aminoethanol-1-ol, potassium hydroxide, L-arginine, L-lysine, and mixtures thereof as alkalizing agents. Extremely preferred compositions contain a mixture of 2-aminoethanol-1-ol, potassium hydroxide, L-arginine, and L-lysine.

[0036] According to a preferred embodiment of the methods and kits, the at least one polycarbodiimide is selected from compounds of the general structural formula shown below (XIV). wherein n represents an integer in the range of 3 to 50, preferably 4 to 20, particularly preferably 4 to 10, and extraordinarily preferably 6 to 7; and R2 and R3, independently of each other, represent a residue derived from a compound selected from the group consisting of a monoalkoxy poly(ethylene glycol) according to general formula (EO-I) with m = 4 to 60, and a residue derived from an alcohol (C1 to C30) or a monoalkoxyethylene glycol (C5 to C90). Preferred compounds of general formula (XIV) independently bear as R2 and R3 residues derived from monomethoxy poly(ethylene glycol) according to general formula (EO-I) with m = 4 to 20, preferably 5 to 15, particularly preferably 6 to 9, and C1 to C30 monoalkoxyethylene glycol. The particularly preferred compound of general formula (XIV) independently bears residues R2 and R3 derived from monomethoxy poly(ethylene glycol) according to general formula (EO-I) with m = 4 to 20, preferably 5 to 15, particularly preferably 6 to 9, and also derived from monobutoxyethylene glycol.

[0037] According to a preferred embodiment, the at least one polycarbodiimide is selected from compounds of the general structural formula shown below (XIII) wherein n represents an integer in the range of 3 to 50, preferably 4 to 20, particularly preferably 4 to 10, and extraordinarily preferably 6 to 7; and m represents an integer in the range of 1 - 10, preferably 1 - 5.

[0038] Other (poly)carbodiimide compounds used may optionally contain one or more reactive groups in their structure that are different from carbodiimide groups, these reactive groups being selected from alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydealkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide, e.g. propyl epoxide or butyl epoxide, and azacyclopropane groups.

[0039] The reactive groups, which are different from carbodiimide groups, can be present at the end of the (poly)carbodiimide or as a side chain. Preferably, the at least one reactive group, which is different from a carbodiimide group, occupies a terminal position in the (poly)carbodiimide. Carbodiimides and polycarbodiimides used are characterized in that they have at least one reactive group, different from a carbodiimide group, in a terminal position. This reactive group is selected from an alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydealkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide, etc. B. Propyl epoxide or butyl epoxide, or azacyclopropane group.

[0040] According to a further preferred embodiment of the methods and kits, the at least one carbodiimide or polycarbodiimide is selected from compounds of the general structural formula (a) shown below, wherein - X1 and X2 independently represent an oxygen atom, a sulfur atom or an NH group, - Y1 and Y2 independently represent a divalent organic group selected from a saturated, aliphatic C1-C 36 -group or an aromatic C6-C 24 -group, wherein the aliphatic or aromatic group may optionally be interrupted by at least one heteroatom, such as a nitrogen atom, an oxygen atom or a sulfur atom; - Z1 and Z2 independently represent a reactive end group or an inert end group; - if Z1 and / or Z2 represent an inert final group, then: - Z1 and / or Z2 independently represent a linear, branched or cyclic C1-C50 group, each saturated and aliphatic, or an aromatic C6-C18 group, wherein the aliphatic or aromatic group may optionally be interrupted by 1 to 10 heteroatoms selected from at least one nitrogen atom, one oxygen atom or one sulfur atom, and mixtures thereof; and wherein the aliphatic or aromatic group may optionally be partially or completely fluorinated; - wherein Z1 and Z2 each have a compound group V that connects Z1 to Y1 and Z2 to Y2, wherein the compound groups V are selected from a single bond, a C=C single bond, a C=C double bond, an amide group, an ester group, a carbonate group, a thioester group, an ether group, a urethane group, a thiourethane group or a urea group; - if Z1 and / or Z2 represent a reactive end group, then Z1 and Z2 can independently represent an alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydealkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide, e.g. propyl epoxide or butyl epoxide, and azacyclopropane group; - Q represents an organopolymer or organooligomer with repeating units of linear, branched or cyclic groups that are saturated and aliphatic, or with repeating units of aromatic groups, each linked together by carbonate, ester, ether, amide, urethane or urea groups or mixtures thereof; - A represents a divalent organic group selected from an aliphatic or aromatic group having 2 to 30 carbon atoms, the aliphatic or aromatic group optionally being interrupted by at least one heteroatom, such as a nitrogen atom, an oxygen atom or a sulfur atom; - r stands for zero or 1; - m represents an integer in the range of 0 to 200, preferably zero or 1; - m' represents an integer in the range of 0 to 200, preferably zero or 1; - n represents an integer in the range of 0 to 200, preferably zero or 1, with (m + m'·n) > 2.

[0041] Preferred carbodiimides or polycarbodiimides are compounds of structural formula (1a) in which Z1 and Z2 independently represent a reactive end group, particularly preferably a reactive end group selected from at least one alkoxysilyl, hydroxysilyl, acetoxysilyl, vinylsilyl, acrylalkylsilyl, methacrylalkylsilyl, crotonylalkylsilyl, carboxyanhydridoalkylsilyl, carboxyalkylsilyl, hydroxyalkylsilyl, aldehydealkylsilyl, mercaptoalkylsilyl, norbornenylsilyl, acylpentadienylalkylsilyl, maleimidoalkylsilyl, sulfonylalkylsilyl, (meth)acrylalkyl, crotonylalkyl, alkyl epoxide, e.g. propyl epoxide or butyl epoxide, or azacyclopropane group.

[0042] Such (poly)carbodiimide components are commercially available, for example from Stahl BV under the trade names Permutex, RelcaLink or Picassian XL and from Nisshinbo under the trade name Carbodilite with the serial numbers V-02, V-02-L2, SV-02, E-02, V-10, SW-12G, E-03A, E-04DG-T, E-05, V-04, V-02B, V-04PF and V-05. A particularly suitable polycarbodiimide can be obtained, for example, from Stahl under the name Picassian XL 762.

[0043] According to a further preferred embodiment, the at least one carbodiimide or polycarbodiimide is selected from compounds of the general structural formula (II) shown below: wherein - X1 and X2 independently represent an oxygen atom, a sulfur atom or an NH group, - R1 and R2 independently represent a hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms; - n and z represent an integer in the range of 1 to 20, with n+z > 2, and w represents an integer in the range of 0 to 3; - L1 independently represents a divalent aliphatic hydrocarbon-based C1-C18 group, a C3-C15 cycloalkylene group, a C3-C12 heterocycloalkylene group or a C6-C14 arylene group, as well as mixtures thereof; - E stands for a group selected from -OR 3 -O-, -SR 4 -S-, -R 5 -N(R 6 )-R 4 -N(R 6 )-R 5 -, in which - R 3 and R 4 independently represent a hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms; - R 5 independently represents a covalent bond or a saturated divalent hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms; - R 6 independently represents a hydrogen atom or a hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms.

[0044] The term "hydrocarbon-based group" means a saturated or unsaturated, linear or branched group comprising 1 to 300 carbon atoms, preferably 1 to 250 carbon atoms, and particularly preferably 1 to 200 carbon atoms. Preferably, the hydrocarbon-based group is a saturated linear hydrocarbon group.

[0045] The hydrocarbon-based group can contain one or more cyclic groups.

[0046] The hydrocarbon-based group may be interrupted by one or more heteroatoms, in particular selected from O, S or N.

[0047] The hydrocarbon-based group can be substituted with one or more cationic, anionic, or zwitterionic groups, for example, with cationic ammonium groups or anionic carboxylate groups. The charge of the entire compound is neutralized by correspondingly oppositely charged anions or cations.

[0048] The term "heteroatom" refers to an oxygen atom, a sulfur atom, or a nitrogen atom, and, if the heteroatom is not incorporated into a chain, also to a halogen atom, in particular Cl, F, Br, and I. Preferred heteroatoms are selected from an oxygen, sulfur, or nitrogen atom.

[0049] Preferably, X1 and X2 independently represent an oxygen atom. Particularly preferably, X1 and X2 each represent an oxygen atom.

[0050] Preferred methods and kits are characterized in that the polycarbodiimide of the above structural formula (II) used therein has the substituents R 1 and R 2 The compounds were selected independently from dialkylamino alcohols, hydroxycarboxylic acid alkyl esters and (poly)alkylene glycol monoalkyl ethers lacking the hydroxyl group, and mixtures thereof.

[0051] Particularly preferred methods and kits are characterized in that the polycarbodiimide of the above structural formula (II) used therein has the substituents R 1 and R 2 Selected independently from groups (i) to (iv), as shown below: (i) Groups according to the structural formula (III) R 7 -OC(O)-C(R 3 )(H)- (III), in which R 7 for a C1-C3 alkyl group and R 8 for a hydrogen atom or a C1-C3 alkyl group; wherein preferably R 7for a methyl group and R 8 stand for a hydrogen atom or for a methyl group; (ii) Groups according to the structural formula (IV) R 9 -[O-CH2-CH(R 10 )] p - (IV), in which R 9 for a C1-C4 alkyl group, R 10 where R represents a hydrogen atom or a C1-C4 alkyl group and p represents an integer from 1 to 3; where preferably R 9 for a methyl, ethyl or butyl group, R 10 for a hydrogen atom or a methyl group and p equals 1; (iii) Groups according to the structural formula (V) (R 11 )2N-CH2-CH(R 12 )- (V), wherein R 11 for a C1-C4 alkyl group and R 12 for a hydrogen atom or a C1-C4 alkyl group; wherein preferably R 11 for a methyl, ethyl or butyl group and R 12 stand for a hydrogen atom or a methyl group, (iv) Groups according to the structural formula (VI) R 13 -[O-CH2-CH(R 14 )] q - (VI), wherein R 13 for a C1-C4 alkyl group or a phenyl group, R 14 where R represents a hydrogen atom or a C1-C4 alkyl group and q represents an integer from 4 to 30; where R is preferably 13 for a methyl, ethyl or butyl group and R 14 for a hydrogen atom or a Methyl group. R is preferentially located. 1 and R 2 independently of one another for a group according to the structural formula (VI), wherein R 13 R represents a C1-C4 alkyl group or a phenyl group, preferably a C1-C4 alkyl group, particularly preferably a methyl group. 14 for a hydrogen atom or a C1-C4 alkyl group, preferably for a hydrogen atom and q is an integer from 4 to 30.

[0052] According to another preferred alternative, the methods and kits are characterized in that the substituents R in the polycarbodiimide of the above structural formula (II) used therein 1 and R 2 are different from each other and one of the groups R 1 or R 2 for one group according to the structural formula (IV) described above and the other group R 1 or R 2 for a group according to the structural formula (VI) described above. In this preferred embodiment, group (IV) R comprises 9 for a methyl, ethyl or butyl group, R 10 for a hydrogen atom or a methyl group, and p is equal to 1. In this preferred embodiment, group (VI) R 13 for a methyl, ethyl or butyl group, R 14 for a hydrogen atom or a methyl group and q for an integer from 4 to 30.

[0053] According to another preferred alternative, the methods and kits are characterized in that the substituents R in the polycarbodiimide of the above structural formula (II) used therein 1 and R 2 are identical and represent a group according to the structural formula (VI) described above, wherein R 13 R represents a C1-C4 alkyl group or a phenyl group, preferably a C1-C4 alkyl group, particularly preferably a methyl group. 14 for a hydrogen atom or a C1-C4 alkyl group, preferably for a hydrogen atom and q for an integer from 4 to 30.

[0054] According to a further preferred alternative, methods and kits are characterized in that the index n in the polycarbodiimide of the above structural formula (II) used therein represents an integer in the range of 1 to 20, preferably from 2 to 20.

[0055] According to a further preferred alternative, the methods and kits are characterized in that the index z in the polycarbodiimide of the above structural formula (II) used therein represents an integer in the range of 1 to 20, preferably from 2 to 20.

[0056] According to a further preferred alternative, the methods and kits are characterized in that, in the polycarbodiimide of the above structural formula (II) used therein, the index w represents the value 1. According to a further preferred alternative, the methods and kits are characterized in that, in the polycarbodiimide of the above structural formula (II) used therein, the index w represents the value 1 and the sum n+z represents an integer in the range of 4 to 10.

[0057] According to a further preferred alternative, the methods and kits are characterized in that the group L1 in the polycarbodiimide of the above structural formula (II) used therein is selected from a divalent aliphatic C1-C 18 hydrocarbon-based group, in particular methylene, ethylene and propylene, further selected from a C3-C 15 -Cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, further selected from a C3-C 12 -Heterocycloalkylene group, such as imidazole, pyrrole and furanylene, or selected from a C6-C 14 -Arylene group, such as phen-1,3-dioctylcyclobutylene-, tetramethylxylylene-, isophorone-, 1,5-naphthylene-, 4,4'-diphenylmethylene-, 4,4'-diphenyldimethylmethylene- and phenylene-, as well as mixtures thereof.

[0058] According to a particularly preferred alternative, the methods and kits are characterized in that, in the polycarbodiimide of the above structural formula (II) used therein, the group L1 is selected from a C3-C15 cycloalkylene group, a C6-C 14 -Arylene group or mixtures thereof. Examples of particularly preferred structures are shown below (VII-1) to (VII-14): L1 is preferably 4,4'-dicyclohexylenemethane according to the formula below (VII-7)

[0059] According to a further preferred alternative, the methods and kits are characterized in that, in the polycarbodiimide of the above structural formula (II) used therein, the group E independently represents a group selected from: - -OR 3 -O-; -SR 4 -S-; -R S -N(R 6 )-R 4 -N(R 6 )-R 5 -; wherein - R 3 and R 4independently of each other, they represent a divalent hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms. - R 5 independently represents a covalent bond or a saturated divalent hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms; and - R 6 independently represents a hydrogen atom or a hydrocarbon-based group, which may optionally be interrupted by one or more heteroatoms.

[0060] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide of the above structural formula (II) used therein has the groups R 3 and R 4 are independently selected from a C6-C14 arylene group, preferably selected from a phenylene group, further selected from a C3-C 15-Cycloalkylene group, such as in particular cyclopropylene and cyclobutylene, further selected from a linear or branched C1-C 18 -Alkylene group, such as methylene and ethylene, optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0061] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide of the above structural formula (II) used therein has the groups R in the substituent E. 3 and R 4 are selected independently from a linear or branched C1-C 18 -Alkylene group, such as methylene, butylene, propylene or ethylene, optionally interrupted by one or more heteroatoms.

[0062] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide of the above structural formula (II) used therein has the group R in the substituent E. 5 does not represent a single bond, but is selected from a C6-C14 arylene group, preferably selected from a phenylene group, further selected from a C3-C 12 -Cycloalkylene group, such as in particular cyclopropylene and cyclobutylene, further selected from a linear or branched C1-C 18 -Alkylene group, such as methylene and ethylene, optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0063] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide of the above structural formula (II) used therein has the group R in the substituent E. 6selected from a C6-C14 arylene group, preferably selected from a phenylene group, further selected from a C3-C 12 -Cycloalkylene group, such as in particular cyclopropylene and cyclobutylene, further selected from a linear or branched C1-C 18 -Alkylene group, such as methylene and ethylene, optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0064] According to a further particularly preferred alternative, the methods and kits are characterized in that the substituent E for a group -OR is used in the polycarbodiimide of the above structural formula (II). 3 -O- is in the R 3 selected from a C6-C 14 -Arylene group, preferably selected from a phenylene group, further selected from a C3-C 12 -Cycloalkylene group, such as in particular cyclopropylene and cyclobutylene, further selected from a linear or branched C1-C18 -Alkylene group, such as methylene, butylene, propylene, or ethylene, optionally interrupted by one or more heteroatoms, and mixtures thereof. According to a further highly preferred alternative, methods and kits are characterized in that, in the polycarbodiimide of the above structural formula (II) used therein, the substituent E for a -OR group 3 -O- is in the R 3 selected from a linear or branched C1-C 18 -Alkylene group, such as methylene, butylene, propylene or ethylene, optionally interrupted by one or more heteroatoms.

[0065] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein was obtained by polycondensation of alpha-methylstyryl isocyanates, such that the polycarbodiimide contains alpha-methylstyrylene monomers according to the structural formula (X) below: wherein R independently represents a group selected from a linear or branched C1-C 24 -Alkyl group, preferably a methyl, ethyl or butyl group, further selected from a cycloalkyl group having 3 to 24 carbon atoms and an aryl group having 6 to 24 carbon atoms, and n for an integer in the range of 2 to 100, preferably in the range of 2 to 50, particularly preferably in the range of 3 to 30 and extraordinarily preferably in the range of 5 to 10.

[0066] In this embodiment, the terms “cycloalkyl” group and “aryl” group correspond to the above definitions.

[0067] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is a tricarbodiimide according to the following structural formula (XI): wherein R can independently represent a linear or branched alkyl group with 1 to 24 carbon atoms, preferably a methyl, ethyl or butyl group, furthermore a cycloalkyl group with 3 to 24 carbon atoms or an aryl group with 6 to 24 carbon atoms.

[0068] In this embodiment, the terms “cycloalkyl” group and “aryl” group correspond to the above definitions.

[0069] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is selected from at least one compound according to one of the following structural formulas (CDI-I) or (II), in which: - X1 and X2 each represent an oxygen atom; - R1 and R2 are independently selected from the group consisting of dialkylamino alcohols, alkyl esters of hydroxycarboxylic acids and monoalkyl ethers of polyalkylene glycol in which the hydroxyl group has been removed, and mixtures thereof, preferably selected from monoalkyl ethers of polyalkylene glycol in which the hydroxyl group has been removed, and particularly preferably selected from at least one component of the structural formula (VI) described above, wherein - R 13 for a C1-C4 alkyl group or a phenyl group, preferably for a C1-C4 alkyl group, particularly preferably for a methyl group, - R 14 for a hydrogen atom or for a C1-C4 alkyl group, preferably for a hydrogen atom, and - q represents an integer in the range of 1 to 30; - n and z represent an integer in the range of 1 to 20, with n+z > 2, and w represents the number zero or 1; - L1 is selected from a divalent aliphatic C1-C 18 hydrocarbon-based group, in particular methylene, ethylene and propylene, further selected from a C3-C 15 -Cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, further selected from a C3-C 12 -Heterocycloalkylene group, such as imidazole, pyrrole and furanylene, or selected from a C6-C14 arylene group, such as phen-1,3-dioctylcyclobutylene, tetramethylxylylene, isophorone, 1,5-naphthylene, 4,4'-diphenylmethylene, 4,4'-diphenyldimethylmethylene and phenylene, as well as mixtures thereof, wherein L1 is particularly preferably selected from a C3-C15 cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, - A is selected from a divalent aliphatic C1-C 18-hydrocarbon-based group, in particular methylene, ethylene and propylene, further selected from a C3-C 15 -Cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, further selected from a C3-C 12 -Heterocycloalkylene group, such as imidazole, pyrrole and furanylene, or selected from a C6-C14 arylene group, such as phen-1,3-dioctylcyclobutylene, tetramethylxylylene, isophorone, 1,5-naphthylene, 4,4'-diphenylmethylene, 4,4'-diphenyldimethylmethylene and phenylene, as well as mixtures thereof, wherein L1 is particularly preferably selected from a C3-C15 cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, - E stands independently for a group selected from: -OR 3 -O-; -SR 4 -S-; -R S -N(R 6 )-R 4 -N(R 6 )-R 5 -; wherein - R 3 and R 4 independently for a divalent C6-C14 arylene group, a C3-C 12 -Cycloalkylene group, a linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof; - R 5 selected from a divalent C6-C14 arylene group, a C3-C 12 -Cycloalkylene group, a linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof; and - R 6 selected from a divalent C6-C14 arylene group, a C3-C 12 -Cycloalkylene group, a linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0070] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is selected from at least one compound according to the above structural formula (II), wherein: - X 1 and X 2 each represent an oxygen atom; - R 1 and R 2 are independently selected from the group consisting of dialkylamino alcohols, alkyl esters of hydroxycarboxylic acids and monoalkyl ethers of polyalkylene glycol in which the hydroxyl group has been removed, and mixtures thereof, preferably selected from monoalkyl ethers of polyalkylene glycol in which the hydroxyl group has been removed; - n and z represent an integer in the range of 1 to 20, with n+z > 2, and w represents the number zero or 1; - L1 is selected from a divalent aliphatic C1-C 18hydrocarbon-based group, in particular methylene, ethylene and propylene, further selected from a C3-C 15 -Cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, further selected from a C3-C 12 -Heterocycloalkylene group, such as imidazole, pyrrole and furanylene, or selected from a C6-C14 arylene group, such as phen-1,3-dioctylcyclobutylene, tetramethylxylylene, isophorone, 1,5-naphthylene, 4,4'-diphenylmethylene, 4,4'-diphenyldimethylmethylene and phenylene, and mixtures thereof, wherein L1 is particularly preferably selected from a C3-C15 cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene, - E stands independently for a group selected from: -OR 3 -O-; -SR 4 -S-; -R S -N(R 6 )-R 4 -N(R 6 )-R 5 -; wherein - R 3 and R 4 independently for a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof; - R 5 selected is from a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof; and - R 6 selected is from a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0071] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is selected from at least one compound according to the above structural formula (II), wherein: - X 1 and X 2 each represent an oxygen atom; - R 1 and R 2 are independently selected from the group consisting of monoalkyl ethers of polyalkylene glycol in which the hydroxyl group has been removed; - n and z represent an integer in the range of 1 to 20, with n+z > 2, and w represents the number zero or 1; - L1 represents a C3-C15 cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene; - E stands independently for a group selected from: -OR 3 -O-; -SR 4 -S-; -R S -N(R 6 )-R 4 -N(R6 )-R 5 -; wherein - R 3 and R 4 independently for a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof; - R 5 selected is from a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof; and - R 6 selected is from a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0072] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is selected from at least one compound according to the above structural formula (II), wherein: - X 1 and X 2 each represent an oxygen atom; - R 1 and R 2 are selected independently of each other from at least one component of the structural formula (VI), R 13 -[O-CH2-CH(R 14 )] q - (VI), wherein - R 13 for a C1-C4 alkyl group or a phenyl group, preferably for a C1-C4 alkyl group, particularly preferably for a methyl group, - R 14 for a hydrogen atom or for a C1-C4 alkyl group, preferably for a hydrogen atom, and - q represents an integer in the range of 1 to 30; - n and z represent an integer in the range of 1 to 20, with n+z > 2, and w represents the number zero or 1; - L1 represents a C3-C15 cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene; and - E for a group -OR 3 -O- is where R 3 for a divalent C6-C14 arylene group, a divalent C3-C 12 -Cycloalkylene group, a divalent linear or branched C1-C 18 -Alkylene group, which is optionally interrupted by one or more heteroatoms, and mixtures thereof.

[0073] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is selected from at least one compound according to the above structural formula (II), wherein: - X 1 and X 2 each represent an oxygen atom; - R 1 and R 2 are selected independently of each other from at least one component of the structural formula (VI), R 13 -[O-CH2-CH(R 14 )] q - wherein (VI), - R 13 for a C1-C4 alkyl group or a phenyl group, preferably for a C1-C4 alkyl group, particularly preferably for a methyl group, - R 14 for a hydrogen atom or for a C1-C4 alkyl group, preferably for a hydrogen atom, and - q represents an integer in the range of 1 to 30; - n and z represent an integer in the range of 1 to 20, preferably from 2 to 20, with n+z in the range of 4 to 10, and w represents the number zero or 1; - L1 represents a C3-C15 cycloalkylene group, such as in particular 4,4'-dicyclohexylenemethane, cyclopentylene, cycloheptylene and cyclohexylene; and - E for a group -OR 3 -O- is where R3 for a divalent linear or branched C1-C 18 -Alkylene group, which is optionally interrupted by one or more heteroatoms, preferably for methylene, propylene, butylene or ethylene.

[0074] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide (II-pref) used therein is selected from at least one compound according to the above structural formula (II), wherein: - X 1 and X 2 each represent an oxygen atom; - R 1 and R 2 each represent a component of the structural formula (VI), R 13 -[O-CH2-CH(R 14 )] q - (VI), wherein - R 13 stands for a methyl group, - R 14 stands for a hydrogen atom, and - q represents an integer in the range of 1 to 4; - n represents an integer in the range of 4 to 7, and w represents the number 0; - L1 represents a 4,4'-dicyclohexylenemethane group.

[0075] According to a further particularly preferred alternative, the methods and kits are characterized in that the polycarbodiimide used therein is selected from at least one compound according to the above structural formula (XII): wherein - L1 stands for 4,4'-dicyclohexylenemethane; and - n and z represent an integer in the range of 1 to 20, preferably from 2 to 20, with n+z in the range of 4 to 10; - E for a group -OR 3 -O- is where R 3 for a divalent linear or branched C1-C 18 -Alkylene group, which is optionally interrupted by one or more heteroatoms, preferably methylene, propylene, butylene or ethylene; - r and s represent an integer in the range of 4 to 30.

[0076] Preferred methods and kits for reducing wrinkles on a textile are characterized in that - apart from an optional substitution of the at least one carbodiimide or polycarbodiimide used with at least one acrylate or methacrylate-based monomer - no additional polymer is included which comprises as a monomer acrylic acid, acrylamides, acrylic esters, methacrylic acid, methacrylamides and / or methacryl esters.

[0077] In particularly preferred processes and kits, compositions are characterized by the fact that at least one alkalizing agent is included in a total amount of 0.5–10 wt.%, preferably 0.7–7 wt.%, particularly preferably 1.0–5 wt.%, and most preferably 1.2–3 wt.%, based on the weight of the compositions. This may be the composition (CDI), synonymously the agent (CDI).

[0078] A composition (CDI) comprising: - at least one carbodiimide or polycarbodiimide - at least one alkalizing agent, - up to 10% water by weight based on the total weight of the composition (CDI) - a pH value in the range of 7.5 to 12, preferably 7.5 to 9.0, each measured at 20°C, It can preferably be used as a composition to reduce wrinkles.

[0079] Such a composition (CDI) for reducing wrinkles is preferably characterized in that it contains, based on its weight, at least one carbodiimide or at least one polycarbodiimide in a total amount of 0.01–10 wt.%, preferably 0.02–7.5 wt.%, more preferably 0.03 wt.% to 5.0 wt.%, more preferably 0.04 wt.% to 2.5 wt.%, and particularly preferably 0.05 wt.% to 2 wt.%. Compositions (CDI) with a carbodiimide or polycarbodiimide content in the lower concentration range claimed, especially in the range of 0.05–2 wt.%, are preferably applied undiluted or via a metering ball to contact textiles. Since carbodiimides and polycarbodiimides are relatively stable in alkaline conditions, particularly in the pH range of 7.5 to 9.0, an alkalizing agent is a suitable dosage form for a textile treatment agent in addition to the pure textile treatment agent.

[0080] Such a composition (CDI) for reducing wrinkles can be distributed in a kit with an aqueous composition (A) having an acidic pH of ≤ 6.5.

[0081] A composition (A) may contain an acid and / or a salt of a polyhydric acid. The acid and / or salt is, in particular, an inorganic acid and / or a salt of an inorganic polyhydric acid selected from the group consisting of: phosphoric acid, dihydrogen phosphate salts, hydrochloric acid, sulfuric acid, hydrogen sulfate salts, carbonic acid, nitric acid, and mixtures thereof. The composition (A) serves to lower the pH value following contact of the textile with the alkaline composition (CDI).

[0082] A composition (A) used can also be characterized by the fact that it contains a buffer system. The buffer system is preferably an inorganic buffer system. The buffer system preferably has a pH value of ≤ 6.5, measured at 20 °C. The buffer system is selected from the group consisting of: phosphate buffer, carbonic acid-carbonate buffer, carbonic acid-silicate buffer, and mixtures thereof. The composition (A) serves to lower the pH value after contact of the textile with the alkaline composition (CDI) and to stabilize it via the buffer system.

[0083] One composition (A) used is characterized in that it does not contain any organic acid. This is particularly advantageous because organic acid functionalities can have a negative effect on the activity of (poly)carbodiimides.

[0084] Another preferred article is a kit for reducing wrinkles on a textile, in particular textiles made of cotton, comprising at least compartments i) and ii) which are physically separate from each other: i) a composition (CDI) containing at least one carbodiimide or at least one polycarbodiimide, and ii) an aqueous composition (A) having a pH of ≤ 6.5, measured at 20 °C.

[0085] A kit offers the user the advantage of a simple system for using the individual components in the correct order and predetermined quantity. Furthermore, the individual components can be stored and packaged separately, reliably preventing any potential interactions.

[0086] In one embodiment, the kit for reducing wrinkles on a textile further comprises at least one additional physically separate compartment iii) containing a further aqueous composition (A).

[0087] A stepwise treatment of textiles with composition (A), for example in two steps, can offer a gentler process for the textiles, thereby increasing the durability of the textiles and at the same time obtaining a better result for wrinkle reduction.

[0088] In one embodiment, the kit for reducing wrinkles on a textile is characterized in that the composition (CDI) further comprises a surfactant.

[0089] In a preferred embodiment, the composition (CDI) is a washing or cleaning agent.

[0090] The composition (CDI) may comprise one or more of the following surfactants: synthetic anionic surfactants of the sulfate or sulfonate type, in amounts preferably not exceeding 20 wt.%, particularly from 0.1 wt.% to 18 wt.%, in each case based on the total composition (CDI). Particularly suitable synthetic anionic surfactants for use in such compositions are the alkyl and / or alkenyl sulfates with 8 to 22 carbon atoms, which bear an alkali, ammonium, or alkyl or hydroxyalkyl-substituted ammonium ion as a countercation. Derivatives of fatty alcohols with, in particular, 12 to 18 carbon atoms and their branched-chain analogues, the so-called oxo alcohols, are preferred.The alkyl and alkenyl sulfates can be prepared in a known manner by reacting the corresponding alcohol component with a conventional sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and subsequent neutralization with alkali, ammonium, or alkyl- or hydroxyalkyl-substituted ammonium bases. Particularly preferred surfactants of the sulfate type include the aforementioned sulfated alkoxylation products of the alcohols, so-called ether sulfates. Preferably, such ether sulfates contain 2 to 30, in particular 4 to 10, ethylene glycol groups per molecule.Suitable anionic surfactants of the sulfonate type include α-sulfoesters obtainable by reacting fatty acid esters with sulfur trioxide and subsequent neutralization, in particular the sulfonation products derived from fatty acids with 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms, and linear alcohols with 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, as well as the sulfofatis fatty acids obtained from these by formal saponification. Also among the usable anionic surfactants are the salts of sulfosuccinic acid esters, which are also referred to as alkyl sulfosuccinates or dialkyl sulfosuccinates, and which represent monoesters or diesters of sulfosuccinic acid with alcohols, preferably fatty alcohols and especially ethoxylated fatty alcohols. Preferred sulfosuccinates contain C8 to C18 fatty alcohol residues or mixtures thereof.Particularly preferred sulfosuccinates contain an ethoxylated fatty alcohol residue, which, considered on its own, constitutes a nonionic surfactant. Sulfosuccinates whose fatty alcohol residues are derived from ethoxylated fatty alcohols with a narrow homolog distribution are especially preferred. Alkylbenzenesulfonate is another suitable synthetic anionic surfactant.

[0091] The composition (CDI) may comprise one or more of the following surfactants: non-ionic surfactant selected from fatty alkyl polyglycosides, fatty alkyl polyalkoxylates, in particular ethoxylates and / or propoxylates, fatty acid polyhydroxyamides and / or ethoxylation and / or propoxylation products of fatty alkylamines, vicinal diols, fatty acid alkyl esters and / or fatty acid amides and mixtures thereof, in particular in an amount in the range of 2% by weight to 25% by weight, based on the total composition (CDI).

[0092] Suitable nonionic surfactants include alkoxylates, in particular ethoxylates and / or propoxylates of saturated or mono- to polyunsaturated linear or branched-chain alcohols with 10 to 22 carbon atoms, preferably 12 to 18 carbon atoms. The degree of alkoxylation of the alcohols is generally between 1 and 20, preferably between 3 and 10. They can be prepared in a known manner by reacting the corresponding alcohols with the corresponding alkylene oxides. Derivatives of fatty alcohols are particularly suitable, although their branched-chain isomers, especially so-called oxo alcohols, can also be used to produce usable alkoxylates. Accordingly, alkoxylates, especially ethoxylates, of primary alcohols with linear, in particular dodecyl, tetradecyl, hexadecyl, or octadecyl, residues, as well as mixtures thereof, are suitable.Furthermore, corresponding alkoxylation products of alkylamines, vicinal diols, and carboxylic acid amides, which correspond to the aforementioned alcohols with respect to their alkyl moiety, can be used. In addition, the ethylene oxide and / or propylene oxide insertion products of fatty acid alkyl esters, as well as fatty acid polyhydroxyamides, are suitable. Suitable alkyl polyglycosides for incorporation into the compositions are compounds of the general formula (G)n-OR12, in which R12 represents an alkyl or alkenyl group with 8 to 22 carbon atoms, G a glucose unit, and n a number between 1 and 10. The glycoside component (G)n consists of oligomers or polymers of naturally occurring aldose or ketose monomers, including in particular glucose, mannose, fructose, galactose, talose, gulose, altrose, allose, idose, ribose, arabinose, xylose and lyxose.Oligomers consisting of such glycosidically linked monomers are characterized not only by the type of sugars they contain but also by their number, the so-called degree of oligomerization. The degree of oligomerization n, as a quantity to be determined analytically, generally takes on fractional values; it lies between 1 and 10, and for the preferably used glycosides, below a value of 1.5, particularly between 1.2 and 1.4. Glucose is the preferred monomer building block due to its good availability. The alkyl or alkenyl moiety R12 of the glycosides is preferably also derived from readily available derivatives of renewable raw materials, especially fatty alcohols, although their branched-chain isomers, particularly so-called oxo alcohols, can also be used to produce usable glycosides.Suitable, therefore, are primarily the primary alcohols with linear octyl, decyl, dodecyl, tetradecyl, hexadecyl, or octadecyl groups, as well as mixtures thereof. Particularly preferred alkyl glycosides contain a coconut fatty alkyl group, that is, mixtures with essentially R12=dodecyl and R12=tetradecyl. Non-ionic surfactant is preferably contained in the composition (CDI) in amounts of 1 wt.% to 30 wt.%, in particular from 1 wt.% to 25 wt.%, based on the total composition (CDI), wherein amounts in the upper part of this range are more likely to be found in liquid compositions and particulate compositions preferably contain lower amounts of up to 5 wt.%.

[0093] Soaps can be considered as further optional surfactant ingredients, with saturated fatty acid soaps, such as the salts of lauric, myristic, palmitic, or stearic acid, as well as soaps derived from natural fatty acid mixtures, for example, coconut, palm kernel, or tallow fatty acids, being suitable. In particular, soap mixtures containing 50% to 100% by weight of saturated C 12 -C 18 The composition consists of fatty acid soaps and up to 50 wt% oleic acid soap. Preferably, soap is present in amounts of 0.1 wt% to 5 wt%, based on the total composition (CDI). However, particularly in liquid compositions containing a carbodiimide or polycarbodiimide, higher amounts of soap, generally up to 20 wt%, based on the total composition (CDI), may be present.

[0094] Optionally, the compositions may also contain betaines and / or cationic surfactants, which – if present – ​​are preferably used in amounts of 0.5 wt.% to 7 wt.%. Among these, esterquats are particularly preferred.

[0095] The compositions (CDI) may further contain peroxygen-based bleaching agents, particularly in amounts ranging from 5 wt.% to 70 wt.%, and optionally a bleach activator, particularly in amounts ranging from 2 wt.% to 10 wt.%. The bleaching agents considered are preferably peroxygen compounds commonly used in detergents, such as percarboxylic acids, for example dodecanediperic acid or phthaloylaminoperoxicapronic acid, hydrogen peroxide, alkali perborate (which may be present as a tetrahydrate or monohydrate), percarbonate, perpyrophosphate, and persilicate, which are generally present as alkali salts, particularly sodium salts. Such bleaching agents are present in detergents containing an active ingredient, preferably in amounts up to 25 wt.%, particularly up to 15 wt.%, and most preferably from 5 wt.% to 15 wt.%, in each case based on the total composition, with percarbonate being particularly used.The optional component of the bleaching activators comprises the commonly used N- or O-acyl compounds, for example, multiply acylated alkylenediamines, in particular tetraacetylethylenediamine, acylated glycolurils, in particular tetraacetylglycoluril, N-acylated hydantoins, hydrazides, triazoles, urazoles, diketopiperazines, sulfurylamides and cyanurates, as well as carboxylic anhydrides, in particular phthalic anhydride, carboxylic esters, in particular sodium isononanoylphenolsulfonate, and acylated sugar derivatives, in particular pentaacetylglucose, as well as cationic nitrile derivatives such as trimethylammonium acetonitrile salts.To prevent interaction with peroxygen compounds during storage, the bleaching activators can be coated with coating substances and / or granulated in a known manner, with tetraacetylethylenediamine granulated with carboxymethylcellulose with average particle sizes of 0.01 mm to 0.8 mm, granulated 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine, and / or trialkylammonium acetonitrile in particle form being particularly preferred. Such bleaching activators are preferably present in detergents in amounts up to 8 wt.%, and in particular from 2 wt.% to 6 wt.%, based on the total composition.

[0096] In a further embodiment, the composition (CDI) may contain water-soluble and / or water-insoluble builder, in particular selected from alkali aluminosilicate, crystalline alkali silicate with a modulus above 1, monomeric polycarboxylate, polymeric polycarboxylate and mixtures thereof, in particular in amounts in the range of 2.5 wt.% to 60 wt.%.

[0097] The composition (CDI) preferably contains 20 wt.% to 55 wt.% water-soluble and / or water-insoluble, organic and / or inorganic builder, if present. The water-soluble organic builder substances include, in particular, those from the class of polycarboxylic acids, especially citric acid and sugar acids, as well as polymeric (poly)carboxylic acids, especially polycarboxylates accessible by oxidation of polysaccharides, polymeric acrylic acids, methacrylic acids, maleic acids, and copolymers thereof, which may also contain small amounts of polymerizable substances without carboxylic acid functionality. The relative molecular mass of the homopolymers of unsaturated carboxylic acids is generally between 5000 g / mol and 200,000 g / mol, and that of the copolymers between 2000 g / mol and 200,000 g / mol, preferably 50,000 g / mol to 120,000 g / mol, based on free acid.A particularly preferred acrylic acid-maleic acid copolymer has a relative molecular mass of 50,000 g / mol to 100,000 g / mol. Suitable, though less preferred, compounds of this class are copolymers of acrylic acid or methacrylic acid with vinyl ethers, such as vinyl methyl ethers, vinyl esters, ethylene, propylene, and styrene, in which the acid content is at least 50 wt.%. Terpolymers containing two carboxylic acids and / or their salts as monomers, and a vinyl alcohol and / or a vinyl alcohol derivative or a carbohydrate as a third monomer, can also be used as water-soluble organic builder substances. The first acidic monomer or its salt is derived from a monoethylene-unsaturated C3-C8 carboxylic acid and preferably from a C3-C4 monocarboxylic acid, in particular (meth)acrylic acid. The second acidic monomer or its salt can be a derivative of a C4-C8 dicarboxylic acid, with maleic acid being particularly preferred.The third monomeric unit in this case is formed by vinyl alcohol and / or preferably an esterified vinyl alcohol. Vinyl alcohol derivatives are particularly preferred, which represent an ester of short-chain carboxylic acids, for example, C1-C4 carboxylic acids, with vinyl alcohol. Preferred terpolymers contain 60 wt.% to 95 wt.%, in particular 70 wt.% to 90 wt.% (meth)acrylic acid and / or (meth)acrylate, especially preferably acrylic acid and / or acrylate, and maleic acid and / or maleate, as well as 5 wt.% to 40 wt.%, preferably 10 wt.% to 30 wt.% vinyl alcohol and / or vinyl acetate. Terpolymers in which the weight ratio of (meth)acrylic acid and / or (meth)acrylate to maleic acid and / or maleate is between 1:1 and 4:1, preferably between 2:1 and 3:1, and particularly between 2:1 and 2.5:1, are especially preferred. Both the quantities and the weight ratios refer to the acids.The second acidic monomer or its salt can also be a derivative of an allylsulfonic acid substituted at the 2-position with an alkyl group, preferably a C1-C4 alkyl group, or an aromatic group, preferably derived from benzene or benzene derivatives. Preferred terpolymers contain 40 wt.% to 60 wt.%, in particular 45 wt. to 55 wt.% (meth)acrylic acid and / or (meth)acrylate, particularly preferably acrylic acid and / or acrylate, 10 wt.% to 30 wt.%, preferably 15 wt.% to 25 wt.% of methallylsulfonic acid and / or methallylsulfonate, and as a third monomer, 15 wt.% to 40 wt.%, preferably 20 wt.% to 40 wt.% of a carbohydrate. This carbohydrate can, for example, be a mono-, di-, oligo-, or polysaccharide, with mono-, di-, or oligosaccharides being preferred, and sucrose being particularly preferred.The use of the third monomer presumably introduces predetermined breaking points into the polymer, which are responsible for its good biodegradability. These monomers can be used, particularly for the production of liquid compositions, in the form of aqueous solutions, preferably in the form of 30 to 50 wt% aqueous solutions. All of the polycarboxylic acids mentioned are generally used in the form of their water-soluble salts, especially their alkali salts.

[0098] Such organic builder substances are preferably present in the composition (CDI) in amounts up to 40 wt.%, particularly up to 25 wt.%, and most preferably from 1 wt.% to 5 wt.%, in each case based on the total amount of composition (CDI). Amounts close to the aforementioned upper limit are preferably used in paste-like or liquid, particularly aqueous, compositions.

[0099] Water-insoluble, water-dispersible inorganic builder materials, particularly crystalline or amorphous alkali aluminosilicates, are used in amounts of up to 50 wt.%, preferably not exceeding 40 wt.%, and in liquid compositions, particularly from 1 wt.% to 5 wt.%. Among these, crystalline aluminosilicates of detergent quality, especially zeolite NaA and optionally NaX, are preferred. Amounts close to the aforementioned upper limit are preferably used in solid, particulate compositions. Suitable substitutes or partial substitutes for the aforementioned aluminosilicate are crystalline alkali silicates, which can be present alone or in mixtures with amorphous silicates. The alkali silicates suitable as builder materials in the compositions preferably have a molar ratio of alkali oxide to SiO₂ below 0.95, particularly from 1:1.1 to 1:12, and can be amorphous or crystalline.Preferred alkali silicates are sodium silicates, particularly amorphous sodium silicates, with a molar Na₂O:SiO₂ ratio of 1:2 to 1:2.8. Such amorphous alkali silicates are commercially available, for example, under the name Portil®. Those with a molar Na₂O:SiO₂ ratio of 1:1.9 to 1:2.8 are preferably added as a solid rather than in solution during production. Crystalline silicates, which may be present alone or in mixtures with amorphous silicates, are preferably crystalline layered silicates of the general formula Na₂Si. x O 2x+1·yH₂O is used, in which x, the so-called modulus, is a number from 1.9 to 4 and y is a number from 0 to 20, with preferred values ​​for x being 2, 3, or 4. Preferred crystalline layered silicates are those in which x in the aforementioned general formula takes the values ​​2 or 3. In particular, both β- and δ-sodium disilicates (Na₂Si₂O₅·yH₂O) are preferred. Practically anhydrous crystalline alkali silicates of the above-mentioned general formula, in which x is a number from 1.9 to 2.1, prepared from amorphous alkali silicates, can also be used. In a further preferred embodiment, a crystalline sodium layered silicate with a modulus of 2 to 3 is used, such as can be prepared from sand and soda. Crystalline sodium silicates with a modulus in the range of 1.9 to 3.5 are used in yet another preferred embodiment. The alkali silicate content is preferably 1 wt.% to 50 wt.% and particularly 5 wt.% to 35 wt.%.-%, based on anhydrous active substance. If alkali aluminosilicate, in particular zeolite, is also present as an additional building block, the alkali silicate content is preferably 1 wt.% to 15 wt.% and in particular 2 wt.% to 8 wt.%, based on anhydrous active substance. The weight ratio of aluminosilicate to silicate, in each case based on anhydrous active substances, is then preferably 4:1 to 10:1. In compositions containing both amorphous and crystalline alkali silicates, the weight ratio of amorphous alkali silicate to crystalline alkali silicate is preferably 1:2 to 2:1 and in particular 1:1 to 2:1.

[0100] In addition to the aforementioned inorganic builder, the compositions may contain other water-soluble or water-insoluble inorganic substances. Suitable examples include alkali carbonates, alkali hydrogen carbonates, and alkali sulfates, as well as mixtures thereof. Such additional inorganic material may be present in quantities of up to 70% by weight.

[0101] In addition, the formulations may contain other ingredients commonly found in detergents or cleaning agents. These optional ingredients include, in particular, enzymes, enzyme stabilizers, complexing agents for heavy metals, such as aminopolycarboxylic acids, aminohydroxypolycarboxylic acids, polyphosphonic acids and / or aminopolyphosphonic acids, foam inhibitors, such as organopolysiloxanes or paraffins, solvents, and optical brighteners, such as stilbene disulfonic acid derivatives.

[0102] Solvents that can be used, particularly in liquid compositions, are preferably water-miscible non-aqueous solvents in addition to water. These include lower alcohols, for example ethanol, propanol, isopropanol, and the isomeric butanols, glycerol, lower glycols, for example ethylene and propylene glycol, and ethers derived from the aforementioned classes of compounds. In such liquid compositions, the active ingredients are generally present in dissolved or suspended form.

[0103] Any enzymes present are preferably selected from the group comprising protease, amylase, lipase, cellulase, hemicellulase, oxidase, peroxidase, pectinase, and mixtures thereof. Protease derived from microorganisms such as bacteria or fungi is the primary candidate. It can be obtained from suitable microorganisms through fermentation processes using known methods. Proteases are commercially available under names such as BLAP®, Savinase®, Esperase®, Maxatase®, Optimase®, Alcalase®, Durazym®, or Maxapem®. The lipase used can be obtained, for example, from Humicola lanuginosa, Bacillus species, Pseudomonas species, Fusarium species, Rhizopus species, or Aspergillus species. Suitable lipases are available commercially under names such as Lipolase®, Lipozym®, Lipomax(D, Lipex®, Amano®-Lipase, Toyo-Jozo®-Lipase, Meito®-Lipase and Diosynth®-Lipase.Suitable amylases are commercially available under names such as Maxamyl®, Termamyl®, Duramyl®, and Purafect® OxAm. The cellulase used can be an enzyme derived from bacteria or fungi, exhibiting an optimum pH preferably in the slightly acidic to slightly alkaline range of 6 to 9.5. Such cellulases are commercially available under names such as Celluzyme®, Carezyme®, and Ecostone®. Suitable pectinases are available, for example, under the names Gamanase®, Pectinex AR®, X-Pect® or Pectaway® from Novozymes, under the names Rohapect UF®, Rohapect TPL®, Rohapect PTE100®, Rohapect MPE®, Rohapect MA plus HC, Rohapect DA12L®, Rohapect 10L®, Rohapect B1 L® from AB Enzymes and under the name Pyrolase® from Diversa Corp., San Diego, CA, USA.

[0104] Common enzyme stabilizers that may be present, particularly in liquid compositions, include amino alcohols, for example mono-, di-, triethanol- and -propanolamine and their mixtures, lower carboxylic acids, boric acid, alkali borates, boric acid-carboxylic acid combinations, boric acid esters, boronic acid derivatives, calcium salts, for example calcium-formic acid combination, magnesium salts, and / or sulfur-containing reducing agents.

[0105] In an alternative embodiment, the composition (CDI) can be in the form of a post-treatment agent. Such compositions can further comprise textile softening components, preferably cationic surfactants. Examples of softening components are quaternary ammonium compounds, cationic polymers, and emulsifiers, such as those used in hair care products and also in textile finishing compositions.

[0106] Suitable examples are quaternary ammonium compounds of formulas (V) and (VI), where in (V) R and R 1 for an acyclic alkyl group with 12 to 24 carbon atoms, R 2 R represents a saturated C1-C4 alkyl or hydroxyalkyl group. 3 either equal to R, R 1 or R 2 is or stands for an aromatic residue. X - The formula (V) represents either a halide, methosulfate, methophosphate, or phosphate ion, as well as mixtures thereof. Examples of cationic compounds of formula (V) are didecyldimethylammonium chloride, ditalgdimethylammonium chloride, or dihexadecylammonium chloride.

[0107] Compounds of formula (VI) are so-called esterquats. Esterquats are characterized by their good biodegradability and are therefore preferred. Here, R stands for 4 for an aliphatic alkyl group with 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds; R 5stands for H, OH or O(CO)R 7 , R 6 stands independently of R 5 for H, OH or O(CO)R 8 , where R 7 and R 8 Each of the following represents an aliphatic alkyl group with 12 to 22 carbon atoms and 0, 1, 2, or 3 double bonds. m, n, and p can each independently have the value 1, 2, or 3. X - This can be either a halide, methosulfate, methophosphate, or phosphate ion, or mixtures thereof. Compounds corresponding to the group O(CO)R for R5 are preferred. 7 and for R 4 and R 7Containing alkyl groups with 16 to 18 carbon atoms. Compounds in which R6 also represents OH are particularly preferred. Examples of compounds of formula (VI) are methyl-N-(2-hydroxyethyl)-N,N-di(talgacyl-oxyethyl)ammonium methosulfate, bis-(palmitoyl)-ethylhydroxyethyl-methyl-ammonium methosulfate, or methyl-N,N-bis(acyloxyethyl)-N-(2-hydroxyethyl)ammonium methosulfate.

[0108] In a preferred embodiment, the compositions contain the textile softening components in amounts up to 35 wt.%, preferably from 0.1 to 25 wt.%, particularly preferably from 0.5 to 15 wt.% and especially from 1 to 10 wt.%, in each case based on the total composition.

[0109] Another subject concerns the use of a carbodiimide or a polycarbodiimide for reducing wrinkles on a textile, in particular a textile comprising cotton.

[0110] Regarding other preferred embodiments of use, what has been said about the method and the kit applies mutatis mutandis.

[0111] The examples shown below are intended to illustrate the subject matter of the invention without limiting it. Examples: Example for reducing wrinkles on a textile

[0112] By mixing polycarbodiimide (Picassian XL762 from Stahl) with potassium hydroxide and water, a liquid composition CDI was produced, resulting in a 1 wt% polycarbodiimide solution with a pH of 10.

[0113] A composition (A) with a pH of 4.5 was produced by mixing phosphate buffer (disodium hydrogen phosphate and 85% phosphoric acid) with water.

[0114] Composition (CDI) and composition (A) were used in washing tests. Washing was carried out in a standard Miele (W1935) drum washing machine. WFK 11A (cotton), available from wfk Testgewebe GmbH, was used as the test fabric. The WFK 11A textiles were pre-washed 20 times with bleach (Persil Mega Pearls).

[0115] The pre-washed fabric was washed with 150 g of the composition (CDI) in a cotton program. After spinning, 750 mL of composition (A) was added during the third rinse cycle of the fabric softener program. Subsequently, another 750 mL of composition (A) was added during the third rinse cycle of the fabric softener program. The textiles were then dried overnight on a clothesline, and after drying, they were tested for crease resistance (according to Crease Resistance DIN 53890).

[0116] The crease recovery angle is a measure of a textile's ability to return to its original shape after being creased. The crease recovery angle is expressed in degrees.

[0117] For this test, the textile is folded to create a crease. This crease is then held under pressure for a specific period of time. After the pressure is removed, the extent to which the textile recovers from the crease is measured. Measurements are typically taken at different times.

[0118] The angle formed between the resulting crease and the original flat position of the fabric is called the crease recovery angle. The larger the angle, the better the textile recovers from creasing. In other words, if a larger angle is measured, the textile is generally smoother, shows fewer creases, and is also more visually appealing to consumers.

[0119] The determination of the wrinkle recovery angle is carried out by comparing a new and unwashed textile (1), a textile (2) which has been washed 20 times with Persil Color, a textile (3) which has been washed 20 times with Persil Color and subsequently treated twice with the composition (CDI) in a washing machine, and a textile (4) which has been pre-treated 20 times with a bleach-containing detergent (Persil Megapearls). crease recovery angle Textile (1) Textile (2) Textile (3) Textile (4) after 5 minutes 45,8° 41,8° 50,0° 48,6° After 30 minutes 51,2° 48,4° 59,4° 54,6°

[0120] The data clearly show that the crease recovery angle is greatest for a textile treated with CDI (textile 3).