Biological stone washer

Abstract

The present invention relates to a composition comprising a lignin-containing material for whitening dyed cellulose-containing textile planar structures to achieve the effect of distressing.

Description

[0001] The invention relates to a composition for whitening dyed cellulose-containing textile flat structures to achieve an "old" effect.

[0002] The "old look" is a common fashion element for jeans and is achieved by the so-called "stone-washing" process. "Stone-washing" originates from the pumice stones that are usually used to treat textiles in the washing and dyeing liquor. In this process, the surface of the jeans is roughened in a controlled manner, so that the dye on the surface is removed. By "stone-washing", the jeans take on the desired "old look", that is, the jeans are faded in certain places and look worn. Problems with "stone-washing" usually arise from the undesirable deposition of dye residues on the textile (so-called "backstaning") and the formation of fiber knots on the surface of the textile (so-called "pilling"). "Pilling" is caused by loose fiber ends, which are loosened from the textile, for example after a grinding process, and subsequently form fiber knots due to mechanical friction.

[0003] Treatment with pumice has disadvantages. Parts of the stones can settle in the pockets of the jeans. They must then be removed laboriously by hand. In addition, parts of the pumice can lead to deposits in pipes and drains. In addition, washing machines are subject to greater wear and tear due to the use of pumice. There is also the risk that the jeans will be seriously damaged by the pumice.

[0004] In order to minimize the disadvantages of pumice, it has been proposed to partially supplement the purely mechanical process with an enzymatic treatment.

[0005] It is known from the prior art that cellulases can achieve a "stone washing" effect by enzymatic means. Publication WO 90 / 07569A1 describes the use of acid cellulases together with pumice.

[0006] Due to the disadvantages of pumice, the publication DE 196 43 036 A1 proposes to completely replace pumice with silicon dioxide. In addition, the proposed washing method can contain cellulase. The publications EP 2 142 698 A1 (organic silicon polymers and aluminosilicates) and CN 1762910 A (ceramic materials composed of magnesium clay, kaolin, feldspar and dolomite) propose other abrasive materials as pumice substitutes.

[0007] The disadvantage of these methods is that they are applied in bleaching liquid, thereby generating a large amount of wastewater. Therefore, for environmental protection reasons, the public document WO 2022 / 106072 A1 proposes a method in which a solid preparation consisting of a neutral cellulase, a filler, a nonionic surfactant, an anti-re-staining agent, a dispersant and a pH regulator is used. The filler is preferably selected from tectosilicate, calcium carbonate, calcium magnesium carbonate, kaolin, mica, talc, titanium dioxide, wollastonite and / or a mixture thereof. The solid preparation is applied to wet jeans without additional water and treated at room temperature.

[0008] Despite the advantages of the above-mentioned abrasives over pumice, silicon dioxide (silica) and silicates (e.g. kaolin) in particular require special attention, since they contain respirable crystalline silica, which can lead to silicosis. The alternatives described also involve natural, non-renewable minerals that must be extracted from nature, thus contributing to resource depletion. In addition, these hard materials (silicates have a Mohs hardness of about 7) can wear out washing machines like pumice and cause deposits in pipes.

[0009] In view of the above disadvantages, the object of the present invention is therefore to provide an improved composition which not only brings about a good "stonewashing" effect but also overcomes the disadvantages of the previously known "stonewashing" processes, i.e. is particularly harmless to health, biodegradable and sustainable.

[0010] The present invention therefore relates to a composition, in particular a dry composition for treating textile flat structures, comprising

[0011] (a) at least one cellulase,

[0012] (b) at least one lignin-containing material,

[0013] (c) at least one pH adjusting agent,

[0014] (d) where appropriate at least one surfactant and

[0015] (e) where appropriate, at least one anti-backstaining agent.

[0016] The composition of the present invention may be in the form of powder, granules, pellets or a mixture thereof.

[0017] Surprisingly it was found that the compositions of the invention give an improved "stonewash" effect compared to the prior art with less backstaining and comparable pilling levels.

[0018] These improvements are particularly surprising, since one skilled in the art would have to assume that cellulases are bound and thus inhibited in the presence of lignin-containing materials (Pan Xj, Role of functional groups in lignin Inhibition of enzymatic hydrolysis of cellulose to glucose, J. Biobased Mater. Bioenergy, 2008, No. 2: pp. 25-32). At least one would have to assume that there is competition between the cellulose substrate and the lignin-containing material, which could reduce the "stonewashing" effect.

[0019] Lignin-containing materials are harmless to health and ecology and come from biodegradable waste, so no resources are wasted.

[0020] Preferably, a textile flat structure is treated with the composition according to the invention, in particular a dry composition, which is selected from natural cellulose fibers such as cotton, linen, hemp, jute and ramie, artificial cellulose fibers such as viscose, cellulose acetate, cellulose triacetate, rayon, cupro, modal, lyocell and mixtures thereof, where appropriate with other synthetic fibers.

[0021] In particular, neutral cellulases are used, i.e. cellulases with maximum activity in the neutral range (particularly at pH 6.5-7.5). Suitable cellulases may be endo-1,4-β-glucanases, exo-1,4-β-glucanases, β-glucosidases and mixtures thereof, even more preferably endo-1,4-β-glucanases. Preferably, the enzymatic activity of the cellulases used is at least 300 U / g, more preferably 1,000 U / g-10,000 U / g and most preferably 5,000 U / g-9,000 U / g. In a particularly preferred embodiment, cellulases according to CAS number 9012-54-8 are used.

[0022] The cellulase or component (a) may be present in powder form or in granular form or in pellet form, preferably in granular form.

[0023] In a preferred embodiment, the content of component (a) is 0.01 wt% to 5 wt%, more preferably 0.05 wt% to 2 wt% and most preferably 0.1 wt% to 1 wt%, based on the total dry composition.

[0024] Correspondingly, the content of component (a) is 0.01 wt% to 4 wt%, more preferably 0.04 wt% to 1.6 wt% and most preferably 0.1 wt% to 0.8 wt%, based on the total composition.

[0025] Lignin-containing material (b) is preferably from biomass. The lignin-containing material of component (b) is preferably abrasive and / or has sharp edges. The feature of lignin-containing material (b) is particularly high lignin content. In a preferred embodiment, based on the total mass of component (b), lignin-containing material (b) has 16 wt %-45 wt %, more preferably 25 wt %-45 wt %, even more preferably 30 wt %-45 wt % lignin.

[0026] In a preferred embodiment, the lignin-containing material (b) comprises 30 wt% to 45 wt%, more preferably 34 wt% to 43 wt% of cellulose, based on the total mass of component (b).

[0027] Finally, the lignin-containing material (b) preferably has 20 wt% to 30 wt%, more preferably 22 wt% to 29 wt% hemicellulose, based on the total mass of component (b). In a particularly preferred embodiment, the lignin-containing material (b) comprises:

[0028] 16% to 45% by weight, more preferably 25% to 45% by weight, of lignin,

[0029] 30% to 45% by weight, more preferably 34% to 43% by weight, of cellulose and

[0030] 20% to 30% by weight, more preferably 22% to 29% by weight, of hemicellulose,

[0031] All are based on the total mass of component (b).

[0032] In a preferred embodiment, the lignin-containing material of component (b) is not a natural or synthetic fiber with a lignin content of ≤5% by weight based on the total mass of the fiber. In one embodiment, the lignin-containing material (b) is different from the textile planar structure. In particular, the lignin-containing material of component (b) does not contain natural cellulose fibers (such as cotton, flax, hemp, jute and ramie), artificial cellulose fibers (such as viscose fibers, cellulose acetate, cellulose triacetate, rayon, cuprammonium fibers, modal, lyocell fibers and mixtures thereof). In particular, the lignin-containing material (b) is also not acacia.

[0033] The content of component (b) is preferably in the range of 5% to 99% by weight, more preferably 10% to 20% by weight, based on the total mass of the dry composition.

[0034] The content of component (b) is preferably in the range of 4% to 80% by weight, more preferably 8% to 30% by weight, based on the total mass of the composition.

[0035] The lignin-containing material of component (b) is preferably characterized by an average particle size of 100-250 μm, more preferably 120-200 μm and most preferably 140-170 μm. Particles with larger or smaller average diameters exhibit significantly lower "stonewashing" effects.

[0036] The average particle size is measured according to DIN 66165.

[0037] The appropriate particle size of the lignin-containing material can be obtained by conventional grinding methods and, where appropriate, subsequent screening. Suitable grinding methods are, for example, treatment with an impact mill, a hammer mill, a pin mill, a fine impact mill (equipped with a pendulum or plate hammer device, where appropriate), a Kondux mill or a through-roll mill.

[0038] The lignin-containing material (b) preferably has a Mohs hardness, measured according to DIN EN 101, in the range of 1.5-5.5, more preferably 2-4.

[0039] Therefore, the material has a suitable hardness, which ensures the grinding effect of the material on the one hand, and does not cause significant erosion to the machine parts during the "stone washing" process on the other hand.

[0040] In a particularly preferred embodiment, the lignin-containing material (b) is obtained from nut shells and / or fruit kernel shells.

[0041] In a particularly preferred embodiment, the lignin-containing material (b) is obtained from nut shells. Suitable nut shells are walnut shells, hazelnut shells, almond shells, coconut shells, pistachio shells, macadamia shells, pecan shells or mixtures thereof. The fruit kernel shells are preferably the fruit kernel shells of drupes, in particular olives, apricots, peaches, cherries and plums, pine nuts, palm fruits, jojoba nuts, cocoa beans or mixtures thereof.

[0042] The lignin-containing material (b) preferably does not contain seeds or nuts. The components of seeds and nuts, especially fat, have a negative impact on "stone washing".

[0043] Based on the total mass of component (b), the lignin-containing material (b) preferably contains up to 3 wt.-%, more preferably 0.01 wt.-3 wt.-%, even more preferably 1 wt.-2 wt.-% of petroleum ether-soluble components. The mass of the petroleum ether-soluble components is determined according to ISO 734.

[0044] The kernel shell and / or nut shell preferably contain other contents. Correspondingly, the lignin-containing material (b) also has monosaccharides and / or polysaccharides, more preferably sucrose, glucose, xylose, mannitol and / or inositol. Without being limited to theory, monosaccharides or polysaccharides, in particular sucrose, glucose, xylose, mannitol and inositol can act as activators of cellulases. Correspondingly, the abrasive lignin-containing material of component (b) is particularly suitable for the composition of the present invention.

[0045] The lignin-containing material (b) preferably has a density of 300 kg / m 3 -700kg / m 3 , more preferably 400kg / m 3 -600kg / m 3 The bulk density is determined in accordance with DIN ISO EN 60.

[0046] The composition of the present invention comprises at least one pH adjusting agent. The pH adjusting agent ensures that the pH value is adjusted so that the cellulase activity is the highest. Suitable pH adjusting agents are known in the art and are selected from water-soluble inorganic salts and / or organic salts, more preferably phosphates, sulfates, carbonates, citrates or acetates. Preferably, pH adjusting agent (c) is selected from alkali metal salts of orthophosphoric acid, diphosphoric acid or triphosphoric acid, sulfuric acid, carbonic acid, citric acid and / or acetic acid. Preferably, pH adjusting agent (c) is selected from alkali metal salts of orthophosphoric acid, diphosphoric acid or triphosphoric acid, sulfuric acid, carbonic acid, citric acid, acetic acid, adipic acid and / or tris(hydroxymethyl)aminomethane (TRIS) buffer, 3-(N-morpholino)propanesulfonic acid (MOPS) buffer and / or 2-(4-(2-hydroxyethyl)-1-piperazinyl)ethanesulfonic acid (HEPES) buffer.

[0047] Preferably, component (c) is a mixture of an alkali metal salt of orthophosphoric acid, diphosphoric acid or triphosphoric acid and an alkali metal salt of sulphuric acid, in particular a mixture of sodium phosphate and sodium sulphate.

[0048] The pH adjuster of component (c) may account for 1 wt% to 80 wt%, more preferably 10 wt% to 70 wt% and most preferably 40 wt% to 70 wt%, based on the total mass of the dry composition.

[0049] The pH adjuster of component (c) may account for 1 wt% to 60 wt%, more preferably 10 wt% to 40 wt% and most preferably 30 wt% to 40 wt%, based on the total mass of the composition.

[0050] The composition of the present invention preferably has a pH value of 5-8, more preferably 6.5-7.5, corresponding to the maximum activity of the neutral cellulase, measured as a 1% aqueous solution of the composition at room temperature.

[0051] The composition may further comprise at least one surfactant (d). The surfactant is preferably a nonionic surfactant, more preferably a polyalkoxylated fatty alcohol, a polyalkoxylated fatty amine, a polyalkoxylated fatty acid, a polyalkoxylated fatty acid amide, a polyalkoxylated glycerol monoester, a diglycerol ester or a triglycerol ester, a polyalkoxylated alkylphenol, a fatty acid alkanolamide, a copolymer of ethylene oxide and propylene oxide, a polyalkoxylated polyol, an ester of a fatty acid and a polyalkoxylated polyol, an amine oxide or an amide amine oxide. In a preferred embodiment, component (d) is selected from alkoxylated C9-C 25 Fatty alcohol, alkoxylated C9-C 25 Fatty acid amines, alkoxylated C9-C 25 Fatty acid amides, C8-C 25 Fatty acids, alkoxylated C8-C 25 Fatty acid esters, alkoxylated C8-C 25 Alkylphenols and alkoxylated C8-C 25 Fatty acid glycerol monoesters, diglycerides or triglycerides and / or fatty acid glycerol monoesters, diglycerides or triglycerides thereof with C8-C 25 The group consisting of esterification products or block copolymers of fatty acids or trialkylphenyl polyalkoxy (e.g. poly (ethylene oxide-co-propylene oxide) or fatty alcohol-poly (ethylene oxide-co-propylene oxide)) and mixtures thereof. The number of alkoxy groups in the nonionic surfactant is at least 4, preferably 8-100, more preferably 10-85 and most preferably 20-80 repeating units. The alkyl groups can each independently be branched or straight chain, saturated or unsaturated.

[0052] Preferred nonionic surfactants (d) are alkoxylated C 12 -C 18 Fatty alcohol.

[0053] Suitable nonionic surfactants preferably have an HLB value of 9 to 11, 11 to 14 or >14, in particular >14.

[0054] The HLB value describes the hydrophilicity and lipophilicity fractions of nonionic surfactants (WC Griffin: Classification of surface active agents by HLB, published in: J. Soc. Cosmet. Chem., Vol. 1, 1949, pp. 311-326).

[0055] Component (d) simultaneously supports the dispersion of the lignin-containing material and the wetting of the textile planar structure to be treated with the components of the composition.

[0056] The surfactant of component (d) may account for 0 wt% to 40 wt%, preferably 5 wt% to 30 wt%, most preferably 10 wt% to 20 wt%, based on the total mass of the dry composition.

[0057] The surfactant of component (d) may account for 0 wt% to 30 wt%, preferably 4 wt% to 20 wt%, and most preferably 10 wt% to 15 wt%, based on the total mass of the composition.

[0058] During "stone washing", dye particles are intentionally removed from the textile flat structure. In order to prevent the deposition of dye particles in other parts, especially in parts where deposition is not desired at all, i.e., parts that are not dyed or dyed with different colors, especially inner pockets and labels of trousers, anti-returning agents are usually used. Known anti-returning agents of component (e) are PEG-polyester, polyvinyl pyrrolidone, sodium carboxymethylcellulose, hydroxypropyl methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol or polymeric polycarboxylates. Anti-returning agents act as "chelating agents" for dye particles and emulsify and remove dye particles that are rubbed off the fabric and suspended in the rinse liquid.

[0059] The anti-backstaining agent (e) is preferably contained at 0% to 10% by weight, preferably 1% to 5% by weight and more preferably 2% to 3% by weight, based on the total mass of the dry composition.

[0060] The anti-backstaining agent (e) is preferably contained in an amount of 0% to 8% by weight, more preferably 2% to 3% by weight, based on the total mass of the composition.

[0061] In particular, the composition of the invention has a water content of ≤25 wt%, preferably ≤10 wt% and most preferably 0.1 wt%-5 wt%, based on the total mass of the composition. The water content can be determined by gravimetric analysis or Karl Fischer titration.

[0062] Alternatively, the composition of the present invention is preferably dry. In particular, based on the total mass of the dry composition, the composition of the present invention has a water content of <5 wt%, more preferably 0.001 wt%-2 wt%. The water content can be determined by gravimetric analysis or Karl Fischer titration.

[0063] The composition of the present invention preferably has a density of 800 kg / m 3 -1,500kg / m 3 , more preferably 1,000 kg / m 3 -1,200kg / m 3 The bulk density.

[0064] In another aspect, the present invention relates to a kit comprising at least two separate units, wherein

[0065] Unit 1 includes:

[0066] (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase,

[0067] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0068] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; and

[0069] Unit 2 includes:

[0070] (b) at least one lignin-containing material, the lignin-containing material preferably comprising 16 wt.% to 45 wt.% lignin, based on the total mass of component (b),

[0071] (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts,

[0072] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0073] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates;

[0074] or

[0075] Unit 1 includes:

[0076] (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase,

[0077] (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts,

[0078] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0079] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; and

[0080] Unit 2 includes:

[0081] (b) at least one lignin-containing material, the lignin-containing material preferably comprising 16 wt.% to 45 wt.% lignin, based on the total mass of component (b),

[0082] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0083] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates.

[0084] The kit comprises components (a) to (e) preferably in dry form, ie having a water content of <5 wt.-%, more preferably 0.001 wt.-2 wt.-%, based on the total mass of the components.

[0085] The components (a)-(e) of the kit correspond to the corresponding components of the (dry) composition of the present invention. The combined components of the first unit and the second unit constitute the composition of the present invention. The above-mentioned features of the composition of the present invention apply correspondingly to the totality of the corresponding components in the first unit and the second unit of the kit.

[0086] In one embodiment of the invention, the composition or kit according to the invention can be used, as described above, for treating textile flat structures (see above), in particular for whitening dyed textile flat structures.

[0087] The composition or kit of the invention is very suitable for "stonewashing" applications in order to give textile flat structure and "old look" to textiles. Surprisingly, the backstaining effect of "stonewashing" is also less pronounced compared to conventional formulations. Without being bound by theoretical speculation, the combination of cellulase (a) and lignin-containing material (b) of the invention has a synergistic effect with each other.

[0088] In another aspect, the invention relates to a method for treating a textile flat structure, the method comprising the following steps

[0089] (i) providing a water-wetted textile planar structure,

[0090] (ii) adding the composition of the present invention or the kit of the present invention,

[0091] (iii) transferring the mixture obtained after step (ii) into a container,

[0092] (iv) the fabric planar structure obtained after washing step (iii), and

[0093] (v) isolating the textile planar structure obtained after step (iv) and, if appropriate, drying it.

[0094] Surprisingly, it has been found that the compositions according to the invention can be applied to moistened textile flat structures in a dry and / or free-flowing state without the need to produce an aqueous dye liquor for this purpose.

[0095] In the case of the kit, in step (ii), either the first unit is applied to the moistened textile surface structure before the second unit, or the second unit is applied to the moistened textile surface structure before the first unit.

[0096] Preferably, the textile planar structure in step (i) has a water content of 70% to 100% by weight of water, more preferably 90% to 100% by weight, based on the dry weight of the textile planar structure. The water content is measured in accordance with DIN 54201.

[0097] In an alternative embodiment, the textile planar structure in step (i) has a water content of 70% to 400% by weight of water, more preferably 200% to 300% by weight of water, based on the dry weight of the textile planar structure. The water content is measured according to DIN54201.

[0098] Preferably, the textile surface structure is dyed. Common dyes are sulfur dyes, reactive dyes, direct dyes, vat dyes, pigment dyes, natural dyes or mixtures thereof, and textile surface structures dyed with pigment dyes, especially indigo-dyed textile surface structures, are particularly preferred.

[0099] The weight ratio of the dry textile planar structure to the composition of the present invention in step (ii) is preferably 100:0.5-10, more preferably 100:1-10, more preferably 100:0.5-5, more preferably 100:1-5, more preferably 100:2-5.

[0100] Step (iii) is preferably carried out in a washing drum. Common washing drums are well known to those skilled in the art and can be installed in domestic washing machines, industrial washing machines, etc. Step (iii) is preferably carried out at 20rpm-60rpm, more preferably 20rpm-40rpm. Usually, step (iii) is carried out for 10 minutes to 60 minutes, preferably 35 minutes to 45 minutes. In particular, step (iii) is carried out at room temperature (20°C-25°C). A higher temperature of up to 60°C (e.g., 15°C-60°C or 20°C-30°C) can be set. Alternatively, step (iii) is particularly carried out at 15°C-25°C. A higher temperature of up to 60°C (e.g., 20°C-60°C or 30°C-40°C) can be set. The inactivation temperature of the cellulase must be considered when setting the temperature.

[0101] After step (iii), the obtained textile planar structure is washed. Preferably, step (iv) is carried out directly in the container used in step (iii). Step (iv) is usually carried out by adding water (tap water or distilled water), wherein commercially available detergents, fabric softeners, surfactants, etc. can be added as appropriate.

[0102] The washing process in step (iv) is preferably repeated as often as possible until the content of component (b) is reduced by at least 90 percentage points, more preferably 95 percentage points, compared to the content of component (b) in step (ii).

[0103] The washing process is repeated 1 to 5 times at a liquid ratio of 1:5 to 1:7, for example, for a pair of jeans with a dry weight of 556 g, 2780 g to 3892 g of water, in particular tap water, is used.

[0104] In step (v), the textile planar structure obtained after step (iv) is generally first spun dry and, if appropriate, dried.

[0105] The spin drying is preferably performed for 2 min to 10 min, more preferably 3 min to 5 min, and the preferred rotation speed is 100 to 1000 rpm, more preferably 300 to 500 rpm.

[0106] Drying is carried out in commercially available industrial or domestic dryers. Corresponding dryers, such as condensation, ventilation or heat pump dryers and stretching frames are known to the person skilled in the art. Drying is preferably carried out at 20° C. to 90° C., more preferably at 30° C. to 75° C.

[0107] The present invention is illustrated by the following examples: Example

[0108] Example 1 (Comparison with silicate abrasive)

[0109] The inventive formulation A was compared with a silicate-containing composition B from the prior art. The corresponding compositions and their properties can be found in Table 1.

[0110] A pair of new denim jeans (indigo and sulfur-dyed cotton fabric) weighing about 556 g was placed in a TONELLOG1 model 70L1 Ecofree drum washing machine (capacity 70 L), 1670 g of water was added, and then the excess water was removed (drained).

[0111] Next, 55 g each of compositions A and B in dry form were added to wet jeans and treated at 20° C. and 24 rpm for 30 min, reversing the direction of rotation every two minutes.

[0112] Table 1: Composition AG

[0113]

[0114]

[0115] The jeans were then rinsed for 1 min each time with 2780 g of tap water at 20° C. The water was removed in a TONELLO model Hydro 12 spin dryer at 300 rpm for 5 min and then completely removed in a “TONELLO G1 model TD 25E” dryer at 70° C. for about 40 min.

[0116] Each time the brightness change was studied on the outside of the right trouser leg (abrasion effect) and on the right inner trouser pocket (backstaining effect). In addition, the fabric was visually inspected for pilling.

[0117] The results for Jeans A (Composition A) and Jeans B (Composition B) are summarized in Table 2.

[0118] Table 2: Results of “Stone Washing” treatment

[0119]

[0120] "DL" refers to lightness or darkness change.

[0121] "Color intensity" and "color depth" both refer to the intensity of a color and are synonymous.

[0122] In the color measurement according to Example 1, jeans treated with a composition according to the prior art were set as a standard, the color depth of which was 100%.

[0123] It is shown here that the whitening effect achieved by the composition of the invention is 3.1% higher ( Figure 1 ).

[0124] At the same time, the backstaining at the inner pocket of the pants is 0.52 points lower, that is, the inner pocket of jeans A is whiter than the inner pocket of comparison jeans B.

[0125] In further experiments, whitening of 6.5% and even higher was observed.

[0126] No differences were found in pilling (i.e. the formation of fiber knots). Figure 2a ) does not cause more stress on textiles than composition B ( Figure 2b ) is larger.

[0127] Further experiments showed that treatment with composition A resulted in fewer loose fiber ends than treatment with composition B.

[0128] Example 2 (Measurement of color intensity)

[0129] The color intensity was determined using a Datacolor 600 colorimeter from Datacolor equipped with Datacolor TOOLS software in the measurement range between 380 nm and 700 nm. As a standard, a pair of jeans with a color depth of 100% was used each time. The color measurements were carried out in accordance with DIN 5033-1 and DIN 6176.

[0130] Example 3 (backstaining)

[0131] In order to study the back dyeing, ie the dyeing of non-dyed parts such as inner pockets, one pair of jeans was treated each time according to the method of Example 1 using compositions A and CE (see Table 1) and the results of "stone washing" were compared (Table 3).

[0132] Table 3: Back-dyeing of jeans A and CE (standard: jeans C)

[0133]

[0134]

[0135] The additive (theoretical) backstaining of jeans D and E (0.38+1.95=2.33 points) is more pronounced than that of jeans A (2.19 points), indicating a synergistic effect of cellulase and lignin-containing material.

[0136] Example 4 (Determination of cellulase activity by viscosity measurement)

[0137] Enzymatic degradation of soluble carboxymethyl cellulose (CMC) and its accompanying viscosity changes can serve as evidence of cellulase activity. Generally speaking, one enzyme unit is understood to be the amount of enzyme required to produce one nanomole of reducing sugar (such as glucose) from a substrate in one second (Measurement of cellulase activities, Pure & Appl. Chem., Vol. 59, No. 2, pp. 257-268, 1987).

[0138] To check the cellulase activity in the comparable compositions of Example 1, viscosity measurements were performed.

[0139] The measurements were performed at 40° C. using a HAAKE rotational viscometer VT 500 equipped with software Rheowin PR=2.97 and an MVDIN sensor.

[0140] First, a 2.3% CMC solution was prepared by dissolving 2.3% Tylopur C33 P2 from SE Tylose GmbH & Co. KG in distilled water. The suspension was stirred for 1 hour until the CMC was completely dissolved. Then 40 g of the CMC solution was mixed with 5.56 mL of acetate buffer (pH 5.0) and heated to 40° C. on a hot plate. The 40° C. warm CMC solution was transferred to a viscometer (set at 300 Units / min) and the viscosity curve was recorded every 10 minutes. After the measurement, the average value of the measured data was determined using software (blind test).

[0141] To measure the enzyme activity, 40 g of CMC solution was mixed with 5 mL of acetate buffer (pH 5.0) and heated to 40°C. The test solution was prepared from 0.05 wt. % of each composition A and B in acetate buffer (pH 5). After the temperature was accurately set, 0.3 g of neutral cellulase (8000 U / g) was added to the acetate buffer (pH 5.0), and the solution was stirred for exactly 15 seconds. The sample solution was then immediately transferred to the measuring container of the viscometer. The measurement was started exactly 30 seconds after the addition of the enzyme, and the viscosity curve was recorded within 10 min at 40°C.

[0142] After the measurement, the software was used for regression analysis (linear variables). The enzyme activity was given by the following formula:

[0143] Activity = FxB / E

[0144] E = amount of enzyme in the test (mg)

[0145] B = gradient factor of linear variable

[0146] F = CMC factor = 1x10 8

[0147] For composition B, the calculated activity was 3200 Units, and for composition A of the present invention, the calculated activity was 4900 Units.

[0148] Contrary to the expected decrease in activity due to competing or inhibiting components of cellulose and / or lignin of the lignin-containing material (here: kernel shell powder), surprisingly, even an increase in activity was observed. It can therefore be assumed that the lignin-containing material contains enzyme activators that increase the activity of the cellulase.

[0149] Example 5 (Comparison with Standard Jeans C)

[0150] A pair of new denim jeans (indigo and sulfur-dyed cotton fabric) weighing about 556 g was placed in a TONELLOG1 model 70L1 Ecofree drum washing machine (capacity 70 L), 1670 g of water was added, and then the excess water was removed (drained).

[0151] Next, 55 g of each of compositions AG in dry form were added to wet jeans and treated at 20° C. and 24 rpm for 30 min, reversing the direction of rotation every two minutes.

[0152] The jeans were then rinsed for 1 min each time with 2780 g of tap water at 20° C. The water was removed in a TONELLO model Hydro 12 spin dryer at 300 rpm for 5 min and then completely removed in a “TONELLO G1 model TD 25E” dryer at 70° C. for about 40 min.

[0153] Each time the brightness changes were studied on the outside of the right trouser leg (abrasive effect) and on the right inner trouser pocket (backstaining effect).

[0154] Table 4 summarizes the color intensity and backstaining of the jeans AG thus treated.

[0155] Jeans C treated with composition C (without lignin-containing material and without cellulase) were chosen as standard (100% color intensity).

[0156] Table 4: Results of “Stone Washing” treatment

[0157] jeans Color intensity of the lower right trouser leg [%] Color intensity of inner pocket of pants [%] (back dyeing) A 88,1 228,5 B 90,1 286,4 C 100 100 D 100 216,0 E 97,1 301,3 F 93,4 Undetermined G 89,0 178

[0158] Jeans A showed higher whitening than Jeans B (silicate). Jeans A also showed higher whitening compared to Jeans D (no cellulase) and Jeans E (no lignin-containing material). Jeans A also showed higher whitening compared to the sum of Jeans D (no cellulase) and Jeans E (no lignin-containing material). Therefore, it can be assumed that there is a synergistic effect of enzymes and lignin-containing material. On the other hand, the backstaining of Jeans A is comparable to Jeans D and reduced compared to Jeans B and E.

[0159] In jeans F (particle size: 350 μm), the whitening was slightly lower than that of jeans A.

[0160] Furthermore, the results also show that even a low concentration of cellulase (jeans G) gives a very good whitening effect and even improved back-dyeing compared to jeans A.

[0161] The present invention is further described by the following points:

[0162] 1. A composition for treating a textile flat structure, the composition comprising

[0163] (a) at least one cellulase,

[0164] (b) at least one lignin-containing material,

[0165] (c) at least one pH adjusting agent,

[0166] (d) where appropriate at least one surfactant and

[0167] (e) where appropriate, at least one anti-backstaining agent.

[0168] 2. A dry composition for treating a textile flat structure according to claim 1, comprising

[0169] (a) at least one cellulase,

[0170] (b) at least one lignin-containing material,

[0171] (c) at least one pH adjusting agent,

[0172] (d) where appropriate at least one surfactant and

[0173] (e) where appropriate, at least one anti-backstaining agent.

[0174] 3. The composition according to item 1 or 2, wherein the cellulase (a) is selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase and mixtures thereof, in particular endo-1,4-β-glucanase.

[0175] 4. A composition according to one of the preceding items, wherein the cellulase is neutral and preferably has an enzyme activity of at least 300 U / g, preferably 1000 U / g-10000 U / g, most preferably 5000 U / g-9000 U / g.

[0176] 5. The composition according to one of the preceding items, wherein the cellulase content is 0.01 to 5 wt.-%, preferably 0.05 to 2 wt.-% and most preferably 0.1 to 1 wt.-%, based on the total composition.

[0177] 6. A composition according to one of the preceding items, wherein the lignin-containing material (b) comprises 16 wt.-45 wt.-%, preferably 25 wt.-45 wt.-%, more preferably 30 wt.-45 wt.-% lignin, based on the total mass of the component (b).

[0178] 7. The composition according to one of the preceding items, wherein the lignin-containing material (b) comprises 30% to 45% by weight, preferably 34% to 43% by weight, of cellulose, based on the total mass of the component (b).

[0179] 8. The composition according to one of the preceding items, wherein the lignin-containing material (b) comprises 20% to 30% by weight, preferably 22% to 29% by weight, of hemicellulose, based on the total mass of the component (b).

[0180] 9. The composition according to one of the preceding items, wherein the lignin-containing material (b) comprises:

[0181] 16% to 45% by weight, preferably 25% to 45% by weight, of lignin,

[0182] 30% to 45% by weight, preferably 34% to 43% by weight, of cellulose and

[0183] 20% to 30% by weight, preferably 22% to 29% by weight, of hemicellulose, each based on the total mass of the component (b).

[0184] 10. A composition according to one of the preceding items, wherein the lignin-containing material (b) is not a natural cellulose fiber, such as cotton, flax, hemp, jute and ramie; a man-made cellulose fiber, such as viscose, cellulose acetate, cellulose triacetate, rayon, cupro, modal, lyocell and mixtures thereof.

[0185] 11. The composition according to one of the preceding items, wherein the lignin-containing material (b) is not Gleditsia sinensis.

[0186] 12. The composition according to one of the preceding items, wherein the content of the lignin-containing material (b) is in the range of 5 wt.-99 wt.-%, preferably 10 wt.-20 wt.-%, based on the total mass of the composition.

[0187] 13. The composition according to one of the preceding items, wherein the lignin-containing material (b) has an average particle size of 100 to 250 μm, preferably 120 to 200 μm and most preferably 140 to 170 μm, measured according to DIN 66165.

[0188] 14. The composition according to one of the preceding items, wherein the lignin-containing material (b) is obtainable by grinding, in particular in an impact mill, a hammer mill, a pin mill, a fine impact mill, if appropriate equipped with a pendulum or blow bar arrangement, a Kondux mill or a through-roll mill.

[0189] 15. The composition according to one of the preceding items, wherein the lignin-containing material (b) has a Mohs hardness, measured according to DIN EN 101, of 1.5 to 5.5, preferably 2 to 4.

[0190] 16. Composition according to one of the preceding items, wherein the lignin-containing material (b) is made of nut shells, in particular walnut shells, hazelnut shells, almond shells, coconut shells, pistachio shells, macadamia shells, pecan shells or mixtures thereof.

[0191] 17. Composition according to one of the preceding items, wherein the lignin-containing material (b) is made from the shells of stone fruits of the drupe class, in particular olives, apricots, peaches, cherries and plums, pine nuts, palm fruits, jojoba nuts, cocoa beans or mixtures thereof.

[0192] 18. The composition according to one of the preceding items, wherein the lignin-containing material (b) further comprises monosaccharides and / or polysaccharides, in particular sucrose, glucose, xylose, mannitol and / or inositol.

[0193] 19. A composition according to one of the preceding clauses, wherein the lignin-containing material (b) has a carbon content of 300 kg / m 3 Up to 700kg / m 3 , preferably 400kg / m 3 Up to 600kg / m 3 The bulk density is measured according to DIN ISO EN 60.

[0194] 20. A composition according to one of the preceding items, wherein the lignin-containing material comprises 0.01 to 3 wt.-%, preferably 1 to 2 wt.-%, of components soluble in petroleum ether, based on the total mass of the component (b), measured according to ISO 734.

[0195] 21. A composition according to one of the preceding items, wherein the pH regulator (c) is selected from water-soluble inorganic salts and / or water-soluble organic salts, in particular phosphates, sulfates, carbonates, citrates or acetates, particularly preferably, the pH regulator (c) is selected from alkali metal salts of orthophosphoric acid, diphosphoric acid or triphosphoric acid, sulfuric acid, carbonic acid, citric acid, acetic acid, adipic acid and / or tris(hydroxymethyl)aminomethane (TRIS) buffer, 3-(N-morpholino)propanesulfonic acid (MOPS) buffer and / or 2-(4-(2-hydroxyethyl)-1-piperazinyl)ethanesulfonic acid (HEPES) buffer.

[0196] 22. The composition according to one of the preceding items, wherein the pH adjusting agent (c) is selected from alkali metal salts of orthophosphoric acid, diphosphoric acid or triphosphoric acid, sulfuric acid, carbonic acid, citric acid and / or acetic acid.

[0197] 23. A composition according to one of the preceding items, wherein the content of the pH regulator is in the range of 1 wt % to 80 wt %, preferably 10 wt % to 70 wt %, most preferably 40 wt % to 70 wt %, based on the total mass of the composition.

[0198] 24. A composition according to one of the preceding items, wherein the surfactant (d) is a nonionic surfactant, in particular a polyalkoxylated fatty alcohol, a polyalkoxylated fatty amine, a polyalkoxylated fatty acid, a polyalkoxylated fatty acid amide, a polyalkoxylated mono-, di- or triglyceride, a polyalkoxylated alkylphenol, a fatty acid alkanolamide, a copolymer of ethylene oxide and propylene oxide, a polyalkoxylated polyol, an ester of a fatty acid with a polyalkoxylated polyol, an amine oxide or an amidoamine oxide.

[0199] 25. A composition according to one of the preceding items, wherein the content of the surfactant is from 0% to 40% by weight, preferably from 1.5% to 30% by weight, preferably from 5% to 30% by weight, most preferably from 10% to 20% by weight, based on the total mass of the composition.

[0200] 26. A composition according to one of the preceding items, wherein the anti-backstaining agent (e) comprises at least one PEG-polyester, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol or polymeric polycarboxylate.

[0201] 27. The composition according to one of the preceding items, wherein the anti-backstaining agent (e) represents 0% to 10% by weight, preferably 1% to 5% by weight, based on the total mass of the composition.

[0202] 28. A composition according to one of the preceding items, wherein the composition has a water content of <5 wt.-%, preferably 0.001 wt.-% to 2 wt.-%, based on the total mass of the composition.

[0203] 29. A composition according to one of the preceding clauses, wherein the composition has a mass fraction of 800 kg / m 3 Up to 1500kg / m 3 , preferably 1000kg / m 3 Up to 1200kg / m 3 The bulk density.

[0204] 30. Use of a composition according to one of items 1 to 29 for treating textile flat structures, in particular for whitening dyed textile flat structures.

[0205] 31. A method for treating a textile flat structure, the method comprising the following steps:

[0206] (i) providing a water-wetted textile planar structure,

[0207] (ii) adding a composition according to one of items 1 to 29,

[0208] (iii) transferring the mixture obtained after step (ii) into a container,

[0209] (iv) the fabric planar structure obtained after washing step (iii), and

[0210] (v) isolating the textile planar structure obtained after step (iv) and, if appropriate, drying it.

[0211] 32. The method according to item 31, wherein the planar structure in step (i) has a water content of 70% to 100% by weight, preferably 90% to 100% by weight, based on the dry weight of the textile planar structure, measured according to DIN 54201.

[0212] 33. The method according to item 31 or 32, wherein in step (ii) the weight ratio of the textile planar structure to the composition is 100:1-10, preferably 100:2-5.

[0213] 34. The method according to one of items 31 to 33, wherein the textile planar structure is dyed.

[0214] 35. A kit comprising at least two separate units, wherein

[0215] Unit 1 includes:

[0216] (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase,

[0217] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0218] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; and

[0219] Unit 2 includes:

[0220] (b) at least one lignin-containing material, the lignin-containing material comprising 16 wt% to 45 wt% lignin, based on the total mass of the component (b),

[0221] (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts,

[0222] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0223] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates;

[0224] or

[0225] Unit 1 includes:

[0226] (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase,

[0227] (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts,

[0228] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0229] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; and

[0230] Unit 2 includes:

[0231] (b) at least one lignin-containing material, said lignin-containing material preferably comprising 16 wt% to 45 wt% lignin, based on the total mass of said component (b),

[0232] (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and

[0233] (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates.

Claims

1. A composition for treating a textile flat structure, the composition comprising (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase, (b) at least one lignin-containing material, said lignin-containing material preferably comprising 16 wt% to 45 wt% lignin, based on the total mass of said component (b), (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts, (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates.

2. A dry composition for treating a textile flat structure according to claim 1, comprising (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase, (b) at least one lignin-containing material, said lignin-containing material preferably comprising 16 wt% to 45 wt% lignin, based on the total mass of said component (b), (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts, (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates.

3. The composition according to claim 1 or 2, wherein The cellulase content is 0.01 wt%-5 wt%, preferably 0.05 wt%-2 wt% and most preferably 0.1 wt%-1 wt%, and / or The content of the lignin-containing material (b) is 5 wt% to 99 wt%, preferably 10 wt% to 20 wt%, and / or The content of the pH adjuster (c) is 1 wt% to 80 wt%, preferably 10 wt% to 70 wt%, most preferably 40 wt% to 70 wt%, and / or The content of the surfactant (d) is 0 wt%-40 wt%, preferably 1.5 wt%-30 wt%, more preferably 5 wt%-30 wt%, most preferably 10 wt%-20 wt%, and / or The content of the anti-backstaining agent (e) is 0% by weight to 10% by weight, preferably 1% by weight to 5% by weight, all based on the total weight of the composition.

4. The composition according to one of claims 1 to 3, wherein the cellulase is neutral and preferably has an enzyme activity of at least 300 U / g, more preferably 1000 U / g-10000 U / g, most preferably 5000 U / g-9000 U / g.

5. The composition according to one of the preceding claims, wherein the lignin-containing material (b) comprises: 16% to 45% by weight, preferably 25% to 45% by weight, of lignin, 30% to 45% by weight, preferably 34% to 43% by weight, of cellulose and 20% to 30% by weight, preferably 22% to 29% by weight, of hemicellulose, All are based on the total mass of the component (b).

6. The composition according to claim 1 , wherein the lignin-containing material (b) is made of nut shells, in particular walnut shells, hazelnut shells, almond shells, coconut shells, pistachio shells, macadamia shells, pecan shells or mixtures thereof, and / or of stone fruit shells, in particular olives, apricots, peaches, cherries and plums, pine nuts, palm nuts, jojoba nuts, cocoa beans or mixtures thereof.

7. The composition according to one of the preceding claims, wherein the lignin-containing material (b) has an average particle size of 100 to 250 μm, preferably 120 to 200 μm and most preferably 140 to 170 μm, measured according to DIN 66165, and / or A Mohs hardness of 1.5 to 5.5, preferably 2 to 4, measured according to DIN EN 101, and / or 300kg / m 3 Up to 700kg / m 3 , preferably 400kg / m 3 Up to 600kg / m 3 The bulk density is measured according to DIN ISO EN 60.

8. A composition according to one of the preceding claims, wherein the lignin-containing material (b) comprises 0.01% to 3% by weight, preferably 1% to 2% by weight, of components soluble in petroleum ether, measured according to ISO 734, based on the total mass of the component (b), and / or also comprises monosaccharides and / or polysaccharides, in particular sucrose, glucose, xylose, mannitol and / or inositol.

9. according to one of the compositions described in claim 2 to 8, wherein based on the gross mass of described composition, described composition has<5 weight-%, preferably 0.001 weight-%-2 weight-% water content, and / or has 800kg / m 3 Up to 1500kg / m 3 , preferably 1000kg / m 3 Up to 1200kg / m 3 The bulk density.

10. A kit comprising at least two separate units, wherein Unit 1 includes: (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase, (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; and Unit 2 includes: (b) at least one lignin-containing material, said lignin-containing material preferably comprising 16 wt% to 45 wt% lignin, based on the total mass of said component (b), (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts, (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; or Unit 1 includes: (a) at least one cellulase, in particular selected from endo-1,4-β-glucanase, exo-1,4-β-glucanase and β-glucosidase, (c) at least one pH adjusting agent, in particular selected from water-soluble inorganic salts and / or water-soluble organic salts, (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates; and Unit 2 includes: (b) at least one lignin-containing material, said lignin-containing material preferably comprising 16 wt% to 45 wt% lignin, based on the total mass of said component (b), (d) where appropriate at least one surfactant, in particular a nonionic surfactant, preferably polyalkoxylated fatty alcohols, polyalkoxylated fatty amines, polyalkoxylated fatty acids, polyalkoxylated fatty acid amides, polyalkoxylated mono-, di- or triglycerides, polyalkoxylated alkylphenols, fatty acid alkanolamides, copolymers of ethylene oxide and propylene oxide, polyalkoxylated polyols, esters of fatty acids with polyalkoxylated polyols, amine oxides or amidoamine oxides, and (e) where appropriate at least one anti-backstaining agent, in particular selected from PEG-polyesters, polyvinylpyrrolidone, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyethylene glycol and polymeric polycarboxylates. 11 . Use of a composition according to claim 1 or a kit according to claim 10 for treating textile flat structures, in particular for whitening dyed textile flat structures.

12. A method for treating a textile flat structure, the method comprising the following steps: (i) providing a water-wetted textile planar structure, wherein the textile planar structure preferably has a water content of 70% to 400% by weight, more preferably 70% to 100% by weight, even more preferably 90% to 100% by weight or 200% to 300% by weight, based on the dry weight of the textile planar structure, measured in accordance with DIN 54201, (ii) adding a composition according to one of claims 1 to 9 or a kit according to claim 10, wherein the weight ratio of the textile planar structure to the total amount of components of the composition or the kit is preferably 100:0.5-10, more preferably 100:1-10, even more preferably 100:0.5-5, even more preferably 100:1-5, even more preferably 100:2-5, (iii) transferring the mixture obtained after step (ii) into a container, (iv) the fabric planar structure obtained after washing step (iii), and (v) isolating the textile planar structure obtained after step (iv) and, if appropriate, drying it.

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