Detergent product

Abstract

A detergent container comprising a liquid detergent composition; wherein the container has an internal volume of 0.1 L to 10 L; and wherein the container has at least 5%, based on the total outward-facing container surface area, of an outward-facing surface area composed of a cellulose-containing material; and wherein the liquid detergent composition comprises: from 5 to 60% by weight of a surfactant; and an alkoxylated polyamine; and a dye.

Description

Technical Field

[0001] The present invention relates to a detergent container having an internal volume of 0.1 to 10 L, wherein the container contains liquid detergent. Background Art

[0002] Liquid detergents typically contain a variety of active substances. One of the most common cleaning active substances is a surfactant. Surfactants are important for reducing water tension to ensure that the washing liquid (proper dilution of neat liquid detergent with water) forms more effective contact with the surface to be cleaned. Surfactants also serve to more easily suspend / dissolve dirt from the surface into the washing liquid.

[0003] Dyes are also present in many liquid detergents. Dyes serve a variety of purposes. One purpose is to optionally provide a color to the detergent liquid that is attractive to the consumer, another purpose is to allow the consumer to see exactly where the neat product is deposited. This can be used to pre-treat stubborn stains.

[0004] Plastics, especially synthetic plastics, are ubiquitous in everyday life due to their relatively low production costs and good balance of material properties. Synthetic plastics are widely used to make containers, such as bottles, for liquid detergent products.

[0005] However, the use of plastics presents environmental problems. The use of virgin plastics results in an undesirable net CO2 release into the atmosphere. 2 Increase. Post-consumer recycled plastics are less dependent on fossil carbon sources, but may not always be available (too expensive or simply not available in sufficient quantities). In any case, reducing plastic use will reduce the amount of plastic waste that inevitably ends up in the environment to a certain extent. One option to reduce plastic use is to use a container material comprising (a larger portion of) cellulose-based materials. The main examples are paper and cardboard. This applies not only to container walls, but also to plastics used as plastic sleeves or adhesive sheets. These (or their fragments) have a greater risk of eventually entering the environment. This plastic sleeve or adhesive sheet can also be replaced by a sleeve or adhesive sheet comprising (a larger portion of cellulose-based materials). As required, the cellulose-based container can contain a thin plastic liner or a waxed inner layer to hold liquid detergents.

[0006] The use of liquid detergent compositions has a major disadvantage in that they are more susceptible to accidental spillage. This may occur during pouring of the liquid from the container and / or through rupture of any unit dose in the container containing the liquid detergent.

[0007] It has been found that overflowing is more problematic on surfaces containing cellulose and in situations where the liquid detergent contains dyes. On surfaces containing cellulose, such overflowing can leave stains that cannot be satisfactorily wiped off and leave the impression of a messy product to the consumer. Products that become visually unattractive in use (or in a production process where overflowing may also occur) may cause consumers to no longer purchase such products, despite the environmental impact of these products having a reduction. Therefore, a container comprising cellulose and a liquid detergent with a dye is needed that causes less visible stains during an unexpected overflow.

[0008] It is an object of the present invention to provide a liquid detergent containing a dye contained in a container comprising a cellulose-containing material, which reduces the visual impact of staining from accidental spillage of the liquid detergent onto a surface. Summary of the invention

[0009] In a first aspect of the present invention, one or more of the above objects are achieved by a detergent container comprising a liquid detergent composition;

[0010] wherein the container has an internal volume of 0.1 L to 10 L; and

[0011] wherein the container has at least 5% of its outwardly facing surface area comprised of cellulose-containing material, such as based on the total outwardly facing container surface area; and wherein the liquid detergent composition comprises:

[0012] 5 to 60 wt% of a surfactant; and

[0013] Alkoxylated polyamines; and

[0014] ·dye.

[0015] When a drop of liquid detergent is placed on a material containing cellulose, the drop has a tendency to be adsorbed into the material. When the amount of cellulose in the material is high, when the material has less water-repellent treatment, and when the drop is allowed to contact the material for a long time, the process is more complete. Due to the presence of dyes in the detergent liquid, it will cause visible staining, which may be difficult to remove by simply wiping with an absorbent cloth or rinsing under running water. This is contrary to the use of vinyl or other types of plastic surface materials with a tendency to repel water, for example. Surprisingly, it is observed that when spilling onto a cellulose-containing material, adding alkoxylated polyamines to a detergent with dyes significantly reduces visible staining areas. Considering that accidental spillage of liquid detergent onto, for example, the outside of a container is actually inevitable in use (also considering a large number of consumers), the present invention helps to reduce the incidence of products becoming increasingly visually unattractive during use. As mentioned above, in order to further reduce the use of plastics, it is necessary that consumers are willing to buy and repurchase more environmentally friendly consumer products.

[0016] Without wishing to be bound by theory, we observed that the total wetted spot area on the cellulose containing material was larger than the total wetted area where the sulfonated dye was observed (before any rinsing of the area with tap water).

[0017] It has further surprisingly been observed that in the case where the surfactant contains certain types of nonionic surfactants, this can also reduce the size of any visible stain formation. This is particularly observed for detergents containing ethoxylated nonionic surfactants having an alkyl moiety of C16-C22 and a molar average degree of ethoxylation of at least 8EO. This is in contrast to the use of other ethoxylated nonionic surfactants having an alkyl moiety with a smaller carbon number and / or having a smaller molar average degree of ethoxylation. Furthermore, it has surprisingly been observed that if the dye contained in the liquid detergent has a lower molar average degree of ethoxylation and / or is charged, this also has the effect of reducing the size of any visible stain formation.

[0018] All of these findings, individually or collectively, are beneficial in reducing the visual impact of accidental detergent spillage onto the surface of a container with exposed cellulose-containing material. This in turn improves consumer acceptance of containers with larger amounts of cellulose-containing material, which are more environmentally friendly relative to plastic containers containing liquid detergents.

[0019] In view of the foregoing, it will be apparent that the present invention is useful in detergent products suitable for household use.

[0020] In a further aspect, the present invention relates to the use of alkoxylated polyamines for reducing dye staining on cellulose-containing containers of liquid detergents comprising dyes. DETAILED DESCRIPTION

[0021] definition

[0022] Unless otherwise indicated or becomes clear from the context, "detergent composition" or "detergent" or "composition" refers to the liquid detergent composition itself, excluding the container; "container" refers to the container itself, excluding the liquid detergent; "product" refers to the container + the liquid detergent composition contained therein. Weight percentages (wt%) are based on the total weight of the liquid detergent, container or product, as indicated or as clear from the context. It should be understood that the amount of the total weight of the ingredients does not exceed 100 wt%.

[0023] Unless otherwise stated, whenever the amount or concentration of a component is quantitatively determined herein, the quantified amount or the quantified concentration relates to the component itself, even if common practice may be to add such a component in the form of a solution or a blend with one or more other ingredients. In addition, it should be understood that the verb "comprise" and its variants are used in a non-restrictive sense to mean to include the items after the word, but do not exclude items not specifically mentioned. Finally, mentioning an element by the indefinite article "a" or "an" does not exclude the possibility of having more than one element, unless the context clearly requires the presence of one and only one element. Therefore, the indefinite article "a" or "an" generally means "at least one". Unless otherwise stated, all measurements are performed under standard conditions. Whenever a parameter (such as concentration or ratio) is referred to as being lower than a specific upper limit, it should be understood that, in the absence of a specified lower limit, the lower limit of the parameter is 0.

[0024] The liquid detergent of the present invention is preferably a hand dishwashing detergent, a machine dishwashing detergent, a dishwashing rinse aid, a laundry detergent, a fabric conditioner or a floor cleaner. Hand dishwashing detergents and laundry detergents are more preferred, and laundry detergents are particularly preferred.

[0025] In the context of the present invention, the term "liquid" means that the continuous phase or major part of the detergent is liquid and the composition is flowable at 15 degrees Celsius or higher. Thus, the term "liquid" may include emulsions, suspensions and compositions with a flowable but harder consistency, known as gels or pastes. The viscosity of the detergent at 25 degrees Celsius and 21 seconds -1 The shear rate is preferably 200 to about 10,000 mPa.s. This shear rate is the shear rate usually applied to the liquid when pouring from a bottle. The pourable liquid detergent preferably has a viscosity of 200 to 1,500 mPa.s, preferably 200 to 700 mPa.s.

[0026] The liquid detergent of the present invention is preferably an aqueous liquid detergent.Preferably, the detergent comprises at least 40 wt. %, even more preferably 50 wt. %, still even more preferably 60 wt. % water, yet more preferably at least 70 wt. % water.

[0027] The detergent of the present invention is preferably a laundry detergent.In the context of the present invention, the term "laundry detergent" means a detergent intended for and capable of wetting and cleaning household laundry such as clothes, linens and other household textiles, preferably also when diluted in a washing machine to form a wash liquor.

[0028] Examples of liquid laundry detergents include heavy duty liquid laundry detergents for use in the wash cycle of an automatic washing machine, and liquid delicate and liquid color care detergents, such as those suitable for washing delicate garments (e.g., those made of silk or wool) by hand or in the wash cycle of an automatic washing machine.

[0029] container

[0030] The container of the present invention has an internal volume of 0.1 to 10 L. The preferred internal volume of the container is 0.2 to 5 L, even more preferably 0.5 to 5 L, and even more preferably 0.5 to 2 L. Therefore, it is suitable for accommodating multiple use doses, whether in a continuous liquid form or in the form of multiple unit doses (such as capsules with a water-soluble film). The container can have any suitable shape, such as a bottle or a box (which is a preferred shape). In terms of shape, bottles are generally characterized by having no sharp-edged corners, while boxes generally have one or more sharp-edged corners.

[0031] Containers for holding detergents are (at present) primarily constructed of plastics, have an internal volume of 0.1 to 10 L, and are suitably form-stable and rigid during transport and storage, although paper-based rigid materials such as paperboard are gaining interest due to environmental concerns. Regardless of the primary material providing structural strength and form stability to the container, an outwardly facing surface area of ​​such containers is often provided with a sticker and / or sleeve to present information. The information may be required by law or regulation, may be marketing information and / or for general aesthetics.

[0032] The present invention is particularly advantageous when the outwardly facing surface area of ​​the container includes any sleeves and stickers containing cellulose. Typically, stickers and sleeves can be made of various materials. They can be, for example, vinyl-based or paper-based. Paper (typically) has a cellulose content of more than 50% by weight. Therefore, even when the container rigid material is based on plastic, the outwardly facing surface area can also include areas with cellulose-containing stickers and / or sleeves. In this case, the present invention also provides benefits. In the case where the container rigid material is based on, for example, cardboard (which already contains cellulose), it can be understood that the present invention also has benefits even when the outwardly facing surface does not include any cellulose-containing shrink wrap, stickers and / or sleeves.

[0033] The container of the present invention has at least 5% of its outwardly facing surface area composed of cellulose-containing material, and preferably, this surface area is at least 10%, more preferably at least 15%, even more preferably at least 20%, even more preferably at least 25%, even more preferably 60% to 100%, such as based on the total outwardly facing surface area of ​​the container. The total outwardly facing container surface is the overall surface area visible to the consumer that is maintained in all possible orientations of the container. In case of doubt, and where applicable, depending on the type of container, the total outwardly facing container surface area is based on the container in a closed configuration. Preferred examples of outwardly facing cellulose-containing material include cellulose-containing stickers, cellulose-containing sleeves and / or exposed cellulose-containing rigid container materials.

[0034] The amount of cellulose in the cellulose-containing material is preferably at least 20 wt%, more preferably at least 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, 80 wt%, 90 wt%, based on the total weight of the cellulose-containing material, with higher amounts being more preferred. The cellulose-containing material may be (part of) a layer on a rigid container material, such as a sleeve or sticker, and / or part of the rigid container material itself, such as a cellulose-based box or bottle.

[0035] The outward-facing cellulose-containing material may have a printed / glossy surface modification that is not considered to adversely affect the benefits provided by the present invention. In the case of uncertainty as to whether a container includes an outward-facing cellulose-containing surface area that benefits from the present invention, a simple test is sufficient. A 50-microliter droplet of a 10% by weight LAS (linear alkyl sulfonate) aqueous solution is placed on a cellulose-containing surface area, wherein the surface area to be tested is oriented horizontally so that the droplet does not roll off. The droplet is incubated at 20 degrees Celsius and under otherwise standard conditions. After 10 minutes, the droplet is wiped off. The process is repeated up to 10 times or until the area under the droplet is obviously soaked. This is usually indicated by darkening and / or wrinkling of the material's color. If the material is affected by a surfactant solution-droplet during this procedure, this indicates that at least part of the droplet liquid is absorbed into the surface-exposed area containing cellulose. In this case, any dye present may cause difficult-to-remove staining of the cellulose-containing material. In the case of at least 5% of the total outward-facing container surface area containing such a cellulose-containing material, such a container belongs to the scope of the present invention.

[0036] Preferably, the container comprises an outwardly facing cellulose-containing surface area which shows clear signs of soaking in the above test after only 5 repetitions, 4 repetitions, more preferably after only 3, 2, 1 repetitions, and even more preferably shows such signs of soaking within the first 10 minutes of contact with the surfactant solution droplets.

[0037] As mentioned above, the main examples where the application of the present invention shows advantages are cardboard boxes in which at least part of the cardboard is exposed outwardly and plastic containers including cellulose-containing sleeves and / or stickers facing outwardly. These two forms of containers particularly benefit from the application of the present invention.

[0038] In the case of a bottle, the container advantageously has a pouring neck with a resealable screw cap, wherein the maximum dimension of the pouring neck of the container is at least 3 times smaller than the maximum dimension of the container. Preferably, the container has a minimum width at its base of 3 cm, more preferably 4 cm. The width is measured parallel to the flat surface on which the container stands upright. At the time of initial sale, the container is preferably filled to more than 95% of the container capacity by weight.

[0039] In the case where the container rigid material is based on plastic, the plastic of the container may be colored, although it is preferably at least partially transparent. This can be easily achieved by reducing the amount of colorant in the plastic as required and / or by varying the container wall thickness. Advantageously, the plastic of the container is substantially free of added colorants (e.g., dyes or pigments) and has no color perceptible to the untrained human eye (i.e., non-white, non-grey). Plastics with little or no added colorants are preferred because they have higher recyclability.

[0040] The main benefit of using cellulose-based materials is their higher bio-origin and bio-renewability. In the case of a container containing plastic, preferably based on the total amount of plastic (raw material), the plastic of the container contains at least 30% by weight, preferably at least 50% by weight, more preferably 70% by weight, even more preferably at least 90% by weight of recycled plastic, preferably post-consumer recycled plastic, or can be obtained by a method using such recycled plastic, wherein the remainder can be virgin plastic. Information on recycled plastics and their use in the manufacture of detergent containers is discussed in the literature, such as in Methods of Recycling, Properties and Applications of Recycled Thermoplastic Polymers. ME Grigore, Recycling 2017, 2, 24. Typically, in order to convert recycled post-use plastics into usable raw materials to make new plastic containers, the plastics are washed, dried and appropriately granulated.

[0041] Surfactants

[0042] The liquid detergents of the present invention comprise from 5 to 60 wt%, most preferably from 10 to 30 wt% of surfactant.Preferably greater than 95% of the surfactant is selected from anionic and nonionic surfactants and mixtures thereof.

[0043] Typically, the anionic surfactant and nonionic surfactant of the surfactant system can be selected from the surfactants described in the following literature: Liquid Detergent Detergents, edited by E. Smulders (Wiley VCH 2002), Anionic Surfactants: Organic Chemistry, edited by Helmut W. Stache (Marcel Dekker 1995), Surfactant Science Series, published by CRC Press, and Non-Ionic Surfactants: Organic Chemistry, edited by Nico M. van Os (Marcel Dekker 1998), Surfactant Science Series, published by CRC Press.

[0044] Preferred amounts of total nonionic surfactants are from 0.1 to 25 wt%, more preferably from 2 to 20 wt%, even more preferably from 4 to 16 wt%, still even more preferably from 5 to 12 wt%.

[0045] Suitable nonionic surfactants may include in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom (e.g. aliphatic alcohols, acids, amides) with alkylene oxides (especially ethylene oxide alone or with propylene oxide). Specific nonionic surfactants are aliphatic C 8 To C 18 Condensation products of linear or branched primary or secondary alcohols with ethylene oxide (typically 5 to 40 EO, preferably 7 to 9 EO). For nonionic surfactants with C16 / 18 alcohol ethoxylates and C16 / 18 methyl ester ethoxylates, it is preferred that the major C18 portion is C18:1, more preferably C18:1 (Δ9). Preferably, the polyunsaturated chains are present at less than 11 wt%.

[0046] As indicated, the presence of nonionic surfactant of the present invention helps to further reduce the dyeing area when accidentally overflowing.Therefore, detergent comprises the ethoxylated nonionic surfactant with C16 to C22 alkyl moiety and at least 8EO's molar average ethoxylation degree.The preferred amount of nonionic surfactant with C16 to C22 alkyl moiety and at least 8EO's molar average ethoxylation degree is 0.1 to 25 weight %, more preferably 2 to 20 weight %, even more preferably 4 to 16 weight %, also even more preferably 5 to 12 weight %.Preferably, the molar average ethoxylation degree of the nonionic surfactant is at least 9, and more preferably at least 10.Preferably, the nonionic surfactant has C16 to C18 alkyl moiety.Preferably, the nonionic surfactant is alcohol ethoxylate.Most preferably there is C16-C18 unsaturated alcohol ethoxylate with molar average 10 EO groups.

[0047] In the case of a mixture of nonionic surfactants, the amount of nonionic surfactant having an alkyl moiety of C16 to C22 and a molar average degree of ethoxylation of at least 8 EO is at least 20 wt %, more preferably at least 40 wt %, even more preferably at least 60 wt %, and even more preferably 80 to 100 wt %, based on the total weight of the nonionic surfactants.

[0048] Preferably, the detergent of the present invention comprises anionic surfactants in an amount of 2 to 50% by weight, more preferably 5 to 40% by weight, even more preferably 6 to 30% by weight.

[0049] Suitable anionic surfactants that can be used are generally water-soluble alkali metal salts of organic sulfuric and sulfonic acids having an alkyl group containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of the higher acyl group. Examples of suitable synthetic anionic surfactants are sodium and potassium alkyl sulfates, especially those obtained by sulfation of higher C8 to C18 alcohols such as those produced from tallow or coconut oil, sodium and potassium alkyl C9 to C20 benzene sulfonates, especially linear secondary alkyl C10 to C15 sodium benzene sulfonates; and sodium alkyl glyceryl ether sulfates, especially those ethers of higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum. Preferred anionic surfactants are sodium C11 to C15 alkylbenzene sulfonates and sodium C12 to C18 alkyl sulfates. Highly preferred are anionic alkylbenzene sulfonates, which are more advantageously linear alkylbenzene sulfonates. Also suitable are surfactants such as those described in EP-A-328 177 (Unilever), which exhibit resistance to salting out, the alkyl polyglycoside surfactants described in EP-A-070 074, and alkyl monoglycosides. Rhamnolipids may also be used.

[0050] Preferably, the weight ratio of total nonionic surfactant to total anionic surfactant is 9:1-1:9, more preferably 3:1-1:3.

[0051] If alkyl ether sulfate surfactant is present, preferably the weight ratio of total nonionic surfactant to total alkyl ether sulfate surfactant (weight of nonionic surfactant / weight of alkyl ether sulfate surfactant) is from 0.5 to 2, preferably from 0.7 to 1.5, most preferably from 0.9 to 1.1.

[0052] If linear alkylbenzene sulfonate is present, preferably the weight ratio of total nonionic surfactant to linear alkylbenzene sulfonate (weight of nonionic surfactant / weight of linear alkylbenzene sulfonate surfactant) is from 0.1 to 2, preferably from 0.3 to 1, most preferably from 0.45 to 0.85.

[0053] Alkoxylated polyamine

[0054] Anti-redeposition polymers stabilize soil in the wash liquor, thereby preventing soil redeposition. Soil release polymers suitable for use in the present invention include alkoxylated polyamines, preferably alkoxylated polyethyleneimines. Polyethyleneimines are composed of ethyleneimine units -CH 2 CH 2 The preferred alkoxylated polyethyleneimines for use in the present invention have a weight average molecular weight (MW) of about 300 to about 10,000. w ). The polyethyleneimine backbone may be linear or branched. It may be branched to the extent that it is a dendrimer. The alkoxylation may typically be ethoxylation, propoxylation, butoxylation or a mixture thereof. Preferably, the alkoxylation is ethoxylation. When the NH groups are alkoxylated, the preferred average degree of alkoxylation is 10 to 30, preferably 15 to 25 alkoxy groups per modification. The preferred material is ethoxylated polyethyleneimine, wherein the average degree of ethoxylation is 10 to 30, preferably 15 to 25 ethoxy groups per ethoxylated nitrogen atom in the polyethyleneimine backbone. Mixtures of any of the above materials may also be used.

[0055] The detergents of the present invention preferably comprise from 0.025 to 8% by weight of one or more anti-redeposition polymers such as, for example, the alkoxylated polyethyleneimines described above. More preferably, the polyamine is an alkoxylated cationic or zwitterionic diamine or polyamine polymer in which the positive charge is provided by quaternization of the nitrogen atom of the amine and the anionic groups, if present, are provided by sulfation or sulfonation of the alkoxylated groups. Preferably, the alkoxylate is selected from butoxy, propoxy and ethoxy, most preferably ethoxy.

[0056] Preferably, greater than or equal to 50 mol % of the nitrogen amines are quaternized, preferably with methyl groups.Preferably, the polymer contains 2 to 10, more preferably 2 to 6, most preferably 3 to 5 quaternized nitrogen amines.

[0057] Preferably, the polymer contains ester (COO) or amide (CONH) groups within the structure, preferably these groups are arranged so that when all ester or amide groups are hydrolyzed, at least one, preferably all, of the hydrolyzed fragments have a molecular weight of less than 4000, preferably less than 2000, most preferably less than 1000.

[0058] Preferably, the polymer has the following form:

[0059]

[0060] Where R 1 is a C3 to C8 alkyl group, X is (C 2 H 4 O) n Y group, wherein n is 15 to 30, wherein m is 2 to 10, preferably 2, 3, 4 or 5, and wherein Y is selected from OH and SO 3 - , and preferably SO 3 - The number of X and R groups is greater than the number of OH groups. Preferably, there are 0, 1 or 2 OH groups. 1 X may contain an ester group. X may contain a carbonyl group, preferably an ester group. Preferably there is one C separating the ester group from the N 2 H 4 O unit, making the structural unit NC 2 H 4 O-ester-(C 2 H 4 O) n-1 Y is preferred. Such polymers are described in WO2021239547 (Unilever). Exemplary polymers are sulfated ethoxylated hexamethylenediamine and Examples P1, P2, P3, P4, P5 and P6 of WO2021239547. Amide and ester groups can be included using lactones or sodium chloroacetate (modified Williamson synthesis), respectively, added to the OH or NH groups and then ethoxylated.

[0061] An exemplary reaction scheme for inclusion of an ester group is

[0062]

[0063] The addition of lactones is discussed in WO2021 / 165468.

[0064] The detergent advantageously comprises from 0.01 to 8% by weight of alkoxylated polyamine, more preferably from 0.05 to 5% by weight, even more preferably from 0.1 to 3% by weight and even more preferably from 0.3 to 2.5% by weight of alkoxylated polyamine.

[0065] Further polymers of this type are discussed in WO 2022 / 136389 A1.

[0066] dye

[0067] Dyes are described in Industrial Dyes, K. Hunger edited 2003 Wiley-VCH ISBN 3-527-30426-6. Dyes used for the present invention are selected from cationic dyes, anionic dyes and nonionic dyes, and are preferably selected from anionic dyes and nonionic dyes. Anionic dyes are negatively charged in aqueous media at pH 7. Examples of anionic dyes are found in the acid and direct dye categories in Color Index (Society of Dyers and Colourists and American Association of Textile Chemists and Colorists). Anionic dyes preferably contain at least one sulfonic acid or carboxylic acid group. Nonionic dyes are uncharged in aqueous media at pH 7, and examples are found in the disperse dye category of Color Index.

[0068] The dye may be any color, preferably the dye is blue, violet, green or red. Most preferably, the dye is blue or violet. The dye may be alkoxylated. The alkoxylated dye preferably has the following general form: Dye-NR 1 R 2 NR 1 R 2 The group is attached to the aromatic ring of the dye. 1 and R 2 Independently selected from polyoxyalkylene chains having 2 or more repeating units and preferably having 2 to 20 repeating units. Examples of polyoxyalkylene chains include ethylene oxide, propylene oxide, glycidyl ether, butylene oxide and mixtures thereof.

[0069] The preferred polyoxyalkylene chain is [(CH 2 CR 3 HO) x (CH 2 CR 4 HO) y R 5 ], where x+y≤5, where y≥1 and z=0 to 5, R 3 Selected from: H; CH 3 ; CH2 O(CH 2 CH 2 O) z H and mixtures thereof; R 4 Selected from: H; CH 2 O(CH 2 CH 2 O) z H and mixtures thereof, and R 5 Selected from: H and CH 3 Preferred alkoxylated dyes for use in the present invention are:

[0070]

[0071] Preferably, the dye is selected from acid dyes; disperse dyes and alkoxylated dyes, and more preferably acid dyes. Preferably, the dye is selected from those having: anthraquinone; triphenylmethane, monoazo; disazo; xanthene; phthalocyanine; and phenazine chromophores. More preferably, the dye is selected from those having phenazine, anthraquinone and monoazo chromophores.

[0072] Preferably, the dye is selected from the group consisting of acid blue 80, acid blue 62, acid violet 43, acid green 25, direct blue 86, acid blue 59, acid blue 98, direct violet 9, direct violet 99, direct violet 35, direct violet 51, acid violet 50, acid yellow 3, acid red 94, acid red 51, acid red 95, acid red 92, acid red 98, acid red 87, acid yellow 73, acid red 50, acid violet 9, acid red 52, food black 1, food black 2, acid red 16 3, Acid Black 1, Acid Orange 24, Acid Yellow 23, Acid Yellow 40, Acid Yellow 11, Acid Red 180, Acid Red 155, Acid Red 1, Acid Red 33, Acid Red 41, Acid Red 19, Acid Orange 10, Acid Red 27, Acid Red 26, Acid Orange 20, Acid Orange 6, Sulfonated Aluminum and Zinc Phthalocyanine, Solvent Violet 13, Disperse Violet 26, Disperse Violet 28, Solvent Green 3, Solvent Blue 63, Disperse Blue 56, Disperse Violet 27, Solvent Yellow 33, Disperse Blue 79:1.

[0073] The dye can be a hueing dye for imparting a sense of whiteness to a surface (particularly laundry textiles), preferably acid violet 50, solvent violet 13, disperse violet 27, disperse violet 28, alkoxylated thiophene or cationic phenazine, as described in WO 2009 / 141172 and WO2009 / 141173. When there is a hueing dye, there is preferably a further green dye to convert the color from purple to bluish green. The dye can be covalently bound to a polymeric substance. It is also contemplated that the hueing dye based on leuco as described in WO2020 / 023812, most preferably triphenylmethane leuco colorant. Such leuco dyes are included in the term hueing dyes, although preferably, the hueing dye according to the present invention is a non-leuco hueing dye.

[0074] Combinations of dyes may be used.

[0075] Hueing dyes are particularly advantageous for laundry detergents, where they can impart a hue to white fabrics, and preferably provide a blue or purple hue to white fabrics. In this regard, the hueing dye imparts a blue or purple hue to white cloth, with a hue angle of 240 to 330, more preferably 260 to 320, and most preferably 265 to 300. The white cloth used is a bleached non-mercerized woven cotton sheet. Preferably, a 10×10 cm piece of white bleached non-mercerized woven cotton cloth is stirred at room temperature for 30 minutes in a 2 g / L aqueous solution (6° French hardness water, liquid 298K: cloth 30:1) of a basic detergent (10 wt % linear alkylbenzene sulfonate, 5 wt % primary alcohol ethoxylate (C12-15, with 7 moles of ethoxy groups), pH=8). The cloth is removed, rinsed and drum dried. The experiment is repeated with and without the addition of hueing dye. The color of the cloth is measured using a reflectometer and expressed as CIE L*a*b* values. The experiment is repeated with 0.001 wt % of dye added to the formulation.

[0076] The total color added to the cloth is calculated as the ΔE value, such that ΔE = (ΔL 2 +Δa 2 +Δb 2 ) 0.5 , where ΔL=L(control)-L(dye); Δa=a(control)-a(dye); ΔB=b(control)-b(dye).

[0077] The actual color of the cloth is calculated as the hue angle, which for the current color range is given by: Hue angle = 270 + 180 / π x atan (-Δa / Δb). A hue angle of 360 / 0 is red, 270 is blue, and 180 is green.

[0078] A hueing dye according to the invention is advantageously a hueing dye meaning that it is capable of being deposited onto textiles under domestic washing conditions in the presence of a wash liquor comprising a surfactant. This can be assessed using the test described above, where the hueing dye gives a non-zero ΔE value.

[0079] The total amount of dyes in the detergent according to the invention is preferably from 0.00001 to 0.5% by weight, more preferably from 0.0001 to 0.1% by weight, even more preferably from 0.0005 to 0.05% by weight.

[0080] As noted, the nature of the dye can affect the dyed area in the event of accidental spillage. Using an uncharged dye containing 6 alkoxylate groups produces more staining than a charged dye with 0 alkoxylate groups. The charged dye contains a charged moiety that forms in water at pH=7, preferably a sulfonic acid and / or a quaternary amine, preferably a sulfonic acid group is the preferred charged group.

[0081] Thus, preferably, the detergent comprises a dye which is charged in aqueous solution at pH 7.0 under otherwise standard conditions.Preferably, the dye has a molar average of 0, 1, 2, 3, 4 or 5 alkoxylate groups, most preferably no alkoxylate groups are present.

[0082] Now, the presence of some alkoxylated dyes which are uncharged at pH 7 in the conditions described may have certain benefits, such as for tinting. If present, in order to balance their benefit with the reduction of dye stained areas, the amount of such dyes is preferably less than 0.1 wt%, more preferably less than 0.05 wt%, even more preferably less than 0.005 wt%, yet even more preferably less than 0.002 wt%, yet even more preferably substantially absent from the detergent.

[0083] Further ingredients

[0084] The detergent of the present invention may contain further optional ingredients to enhance performance and / or consumer acceptance. Examples of such ingredients include foam boosters, polyelectrolytes, anti-shrinkage agents, anti-wrinkle agents, antioxidants, sunscreens, anti-corrosive agents, drape imparting agents, antistatic agents, ironing aids, other colorants such as pigments, pearlescent agents and / or sunscreens. Each of these ingredients is present in an amount that effectively achieves its purpose. Typically, these optional ingredients are included individually in an amount of up to 5% (based on the total weight of the diluted composition by weight), and are adjusted accordingly according to the dilution ratio with water.

[0085] Co-surfactant

[0086] In addition to the non-soap anionic and / or nonionic detersive surfactants described above, the detergents of the present invention may contain one or more co-surfactants (e.g., amphoteric (zwitterionic) and / or cationic surfactants). Specific cationic surfactants include C8 to C18 alkyl dimethyl ammonium halides and derivatives thereof, in which one or two hydroxyethyl groups replace one or two methyl groups, and mixtures thereof. When included, the cationic surfactant may be present in an amount ranging from 0.1 to 5% by weight. Specific amphoteric (zwitterionic) surfactants include alkylamine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines (sulfobetaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkyl amphoglycocinates, alkyl amidopropyl hydroxysulfobetaines, acyltaurates and acylglutamates, which have an alkyl group containing from about 8 to about 22 carbon atoms, preferably selected from C12:0, C14:0, C16:0, C18:0 and C18:1, the term "alkyl" being used to include the alkyl portion of the higher acyl group. When included, the amphoteric (zwitterionic) surfactant can be present in an amount ranging from 0.1 to 5% by weight. Mixtures of any of the above materials can also be used.

[0087] pH

[0088] The suitable pH of the liquid detergent depends on the type of detergent. Preferably, the liquid detergent has a pH of 5 to 9, preferably 6 to 8, as measured at 293 K, in the case where it is a laundry detergent. In the case where the liquid detergent is a machine dishwashing detergent, the preferred pH is 7 to 10.

[0089] Fluorescent agent

[0090] Liquid detergents of the present invention preferably include fluorescent agents (also referred to as fluorescent whitening agents), particularly when they are laundry detergents. Fluorescent agents are well known, and many such fluorescent agents are commercially available. Typically, these fluorescent agents are provided and used in the form of their alkali metal salts (e.g., sodium salts). The total amount of one or more fluorescent agents used in the detergents of the present invention is typically 0.005 to 2 weight percent, more preferably 0.01 to 0.1 weight percent. Preferred classes of fluorescent agents are: distyryl biphenyl compounds, such as Tinopal (trademark) CBS-X, diamine stilbene disulfonic acid compounds, such as Tinopal DMS pureXtra and Blankophor (trademark) HRH, and pyrazoline compounds, such as Blankophor SN. Preferred fluorescent agents are: sodium 2-(4-phenylvinyl-3-sulfophenyl)-2H-naphtho[1,2-d]triazole, disodium 4,4'-bis{[(4-anilino-6-(N-methyl-N-2-hydroxyethyl)amino-1,3,5-triazin-2-yl)]amino}stilbene-2-2'-disulfonate, disodium 4,4'-bis{[(4-phenylvinyl-6-morpholino-1,3,5-triazin-2-yl)]amino}stilbene-2-2'-disulfonate and disodium 4,4'-bis(2-sulfostyryl)biphenyl.

[0091] It is preferred that the liquid detergent according to the invention comprises a fluorescent agent. When the liquid detergent of the invention is used to prepare a dilute wash liquor in a household method for treating textiles, the fluorescent agent is preferably present in the dilute wash liquor in the range of 0.0001 g / L to 0.1 g / L, preferably 0.001 to 0.02 g / L.

[0092] spices

[0093] Preferably, the liquid detergent contains perfume. The perfume is preferably present in the detergent in an amount of 0.001 to 3% by weight, most preferably 0.1 to 1% by weight. Examples of many suitable perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide published by CFTA Publications and the OPD 1993 Chemicals Buyers Directory 80th Annual Edition published by Schnell Publishing Co.

[0094] It is common to have multiple perfume components in detergents. In the detergents of the present invention, it is envisaged that there will be four or more, preferably five or more, more preferably six or more, or even seven or more different perfume components. In a perfume mixture, preferably 15 to 25% by weight are top notes. Top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6 (2): 80

[1955] ). Preferred top notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol. Perfumes and top notes are advantageously used to indicate the decontamination benefits provided by the detergents of the present invention.

[0095] Soil Release Polymers

[0096] Soil release polymers (SRPs) help improve the release of soil from surfaces by modifying the surface to be cleaned, such as fabrics or hard surfaces, during the washing process. The SRPs used in the present invention can include a variety of charged (e.g., anionic) and uncharged monomer units, and the structure can be linear, branched, or star-shaped. The SRP structure can also include end-capping groups to control molecular weight or change polymer properties, such as surface activity. The weight average molecular weight (M) of the SRP is w ) may suitably be in the range of about 1000 to about 20,000, preferably in the range of about 1500 to about 10,000.

[0097] The SRP used in the present invention can be suitably selected from copolyesters of dicarboxylic acids (e.g. adipic acid, phthalic acid or terephthalic acid), diols (e.g. ethylene glycol or propylene glycol) and polyglycols (e.g. polyethylene glycol or polypropylene glycol). The copolyesters can also include monomer units substituted with anionic groups, such as, for example, sulfonated isophthaloyl units.

[0098] Other types of SRPs useful in the present invention include cellulose derivatives such as hydroxyether cellulose polymers, C 1 -C 4 Alkyl cellulose and C 4 Hydroxyalkyl cellulose; polymers having poly(vinyl ester) hydrophobic segments, such as graft copolymers of poly(vinyl esters), for example C 1 -C 6 Vinyl esters such as poly(vinyl acetate); poly(vinyl caprolactam) and related copolymers with monomers such as vinyl pyrrolidone and / or dimethylaminoethyl methacrylate; and polyester-polyamide polymers prepared by condensing adipic acid, caprolactam and polyethylene glycol.

[0099] When included, overall levels of SRP may range from 0.1 to 10%, depending upon the level of polymer intended for use in the final letdown composition, and ideally is 0.3 to 7%, more preferably 0.5 to 5% (by weight based on the total weight of the letdown composition).

[0100] Suitable soil release polymers are described in more detail in U.S. Patent Nos. 5,574,179; 4,956,447; 4,861,512; 4,702,857, WO 2007 / 079850 and WO 2016 / 005271. If used, soil release polymers are typically incorporated into liquid detergents at a concentration of 0.01 to 10% by weight, more preferably 0.1 to 5% by weight.

[0101] Hydrotrope

[0102] The compositions of the present invention may include non-aqueous carriers such as hydrotropes, co-solvents and phase stabilizers. Such materials are typically low molecular weight, water-soluble or water-miscible organic liquids such as C1 to C5 monohydric alcohols (such as ethanol and n-propanol or isopropanol); C2 to C6 diols (such as monopropylene glycol and dipropylene glycol); C3 to C9 triols (such as glycerol); weight average molecular weight (M w ) range of about 200 to 600; C1 to C3 alkanolamines such as monoethanolamine, diethanolamine and triethanolamine; and alkylaryl sulfonates having up to 3 carbon atoms in the lower alkyl group (such as xylene, toluene, ethylbenzene and sodium and potassium cumene (cumene) sulfonates). Mixtures of any of the above materials may also be used. The non-aqueous carrier (when included) may be present in an amount of 0.1 to 20 weight %, preferably 2 to 15 weight %, and more preferably 10 to 14 weight %. The level of hydrotrope used is associated with the level of surfactant, and it is desirable to use the hydrotrope content to control the viscosity in such detergents. Preferred hydrotropes are monopropylene glycol and glycerol. Preferably, the detergent contains less than 2 weight % ethanol, more preferably less than 0.5 weight % ethanol, and preferably it is substantially free of ethanol.

[0103] Builders and Chelating Agents

[0104] The detergents of the present invention preferably contain an organic detergent builder or chelating agent material. Examples include alkali metals, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates. Specific examples include sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene polycarboxylic acid and citric acid. Other examples are DEQUEST TM , an organic phosphonic acid chelating agent sold by Monsanto, and an alkylhydroxyphosphonate.

[0105] Other suitable organic builders include the high molecular weight polymers and copolymers known to have builder properties. For example, such materials include appropriate polyacrylic acids, polymaleic acids and polyacrylic acid / polymaleic acid copolymers and their salts, such as those marketed by BASF under the name SOKALAN TM The organic detergent materials may be those materials sold as such. If used, organic builder materials may comprise from about 0.5% to 20% by weight of the detergent, preferably from 1% to 10% by weight. Preferred builder levels are less than 10% by weight of the detergent, and preferably less than 5% by weight. More preferably, the liquid detergent is a non-phosphate-built detergent formulation, i.e., containing less than 1% by weight of phosphate. Most preferably, the detergent formulation is non-built, meaning that it contains less than 1% by weight of builder. A preferred chelating agent is HEDP (1-hydroxyethylidene-1,1-diphosphonic acid), such as that sold as Dequest 2010. Dequest (R) 2066 (diethylenetriamine penta (methylenephosphonic acid) or DTPMP heptasodium) is also suitable, but less preferred because its cleaning effect is poor.

[0106] In view of reducing environmental eutrophication problems, it is preferred that the detergent contains less than 1 wt. % phosphate, phosphonate or a mixture thereof, more preferably it contains less than 0.8 wt. %, even more preferably less than 0.5 wt. %, and even more preferably less than 0.15 wt. % phosphate, phosphonate or a mixture thereof.

[0107] The following builders are particularly preferred: 2,2',2"-nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), iminodisuccinic acid (IDS), ethylenediamine-N,N'-disuccinic acid (EDDS), methylglycine-N,N-diacetic acid (MGDA), glutamic acid-N,N-diacetic acid (GLDA), N-(2-hydroxyethyl)iminodiacetic acid (EDG), aspartic acid-N-monoacetic acid (ASMA), aspartic acid-N,N-diacetic acid (ASDA), aspartic acid-N-monopropionic acid (ASMP), iminodisuccinic acid (IDA), N-(sulfomethyl)aspartic acid (SMAS), N-(2-sulfoethyl)-aspartic acid (SEAS), N-(sulfomethylglutamic acid) (SMGL), N-(2-sulfoethyl)-aspartic acid (SMA), aspartic acid-N,N-diacetic acid (ASDA), aspartic acid-N-monopropionic acid (ASMP), iminodisuccinic acid (IDA), N-(sulfomethyl)aspartic acid (SMAS), N-(2-sulfoethyl)-aspartic acid (SEAS), N-(sulfomethylglutamic acid) (SMGL), N-(2-sulfoethyl)-aspartic acid (SMA), aspartic acid-N,N-diacetic acid (ASDA), aspartic acid-N-monopropionic acid (ASMP), )-glutamic acid (SEGL), N-methyliminodiacetic acid (MIDA), serine-N,N-diacetic acid (SEDA), isoserine-N,N-diacetic acid (ISDA), phenylalanine-N,N-diacetic acid (PHDA), anthranilic acid-N,N-diacetic acid (ANDA), p-aminobenzenesulfonic acid-N,N-diacetic acid (SLDA), taurine-N,N-diacetic acid (TUDA) and N'-(2-hydroxyethyl)ethylenediamine-N,N,N'-triacetic acid (HEDTA), diethanolglycine (DEG). Although these builder substances are referred to using their acid form, it should be understood that their partial or complete salt forms are included in the name. Preferred are the acid forms of the builders. These builders are preferably present in an amount of 0.01 to 10 wt %, more preferably 0.2 to 5 wt %.

[0108] In particular, for machine dishwashing detergents it is advantageous if they contain MGDA, GLDA, citric acid or a combination thereof.

[0109] Polymer thickener

[0110] The detergents of the present invention may contain one or more polymeric thickeners. Suitable polymeric thickeners for use in the present invention include hydrophobically modified alkali swellable emulsion (HASE) copolymers. Exemplary HASE copolymers for use in the present invention include linear or crosslinked copolymers prepared by addition polymerization of a monomer mixture including at least one acidic vinyl monomer such as (meth)acrylic acid (i.e., methacrylic acid and / or acrylic acid) and at least one associative monomer. The term "associative monomer" in the context of the present invention refers to a monomer having an ethylenically unsaturated segment (for addition polymerization with other monomers in the mixture) and a hydrophobic segment. Preferred types of associative monomers include a polyolefin segment between the ethylenically unsaturated segment and the hydrophobic segment. Preferred HASE copolymers for use in the present invention include linear or crosslinked copolymers prepared by addition polymerization of (meth)acrylic acid with (i) a linear or branched C 8 -C40 Alkyl (preferably straight chain C 12 -C 22 (ii) at least one associative monomer selected from C 1 -C 4 The associative monomer (i) is prepared by addition polymerization of at least one other monomer of an alkyl (meth) acrylate, a polyacid vinyl monomer (such as maleic acid, maleic anhydride and / or its salts) and mixtures thereof. The polyethoxylated portion of the associative monomer (i) generally contains from about 5 to about 100, preferably from about 10 to about 80, more preferably from about 15 to about 60 oxyethylene repeating units. Mixtures of any of the above materials may also be used.

[0111] When included, detergents of the present invention preferably comprise from 0.01 to 5% by weight (but depending on the amount intended for use in the final diluted product) and ideally, from 0.1 to 3% by weight, based on the total weight of the diluted composition.

[0112] Enzymes

[0113] One or more enzymes are preferably present in the liquid detergent of the present invention. Preferably, the level of each enzyme in the detergent is from 0.0001 wt % to 0.1 wt % protein. Unless otherwise stated, the amount of enzyme in the liquid detergent in wt % refers to the wt % of active protein level.

[0114] Preferably, the detergent may comprise an effective amount of one or more lipases, cellulases, proteases, amylases, hemicellulases, peroxidases, hemicellulases, xylanases, xanthanases, lipases, phospholipases, esterases, cutinases, pectinases, carrageenase, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malasases, β-glucanases, arabinosidases, hyaluronidases, chondroitinases, laccases, tannases, nucleases (e.g., deoxyribonucleases and / or ribonucleases), phosphodiesterases, or mixtures thereof.

[0115] Examples of preferred enzymes are sold under the following trade names: Purafect (DuPont), Stainzyme (Novozymes), Biotouch (AB Enzymes), (BASF).

[0116] Detergent enzymes are discussed in WO 2020 / 186028 (Procter and Gamble), WO 2020 / 200600 (Henkel), WO 2020 / 070249 (Novozymes), WO 2021 / 001244 (BASF) and WO 2020 / 259949 (Unilever).

[0117] Nucleases are enzymes capable of cleaving phosphodiester bonds between nucleotide subunits of nucleic acids, and are preferably deoxyribonucleases or ribonucleases. Preferably, the nuclease is a deoxyribonuclease, preferably selected from any of the classes EC3.1.21.x, wherein x=1, 2, 3, 4, 5, 6, 7, 8 or 9, EC3.1.22.y, wherein y=1, 2, 4 or 5, or EC3.1.30.Z, wherein z=1 or 2, EC3.1.31.1, and mixtures thereof.

[0118] preservative

[0119] Food preservatives are discussed in Food Chemistry (Belitz H.-D., Grosch W., Schieberle), 4th edition Springer. Isothiazolone-based preservatives may also be used.

[0120] The detergent preferably contains a preservative or a mixture of preservatives selected from benzoic acid and its salts, alkyl esters of p-hydroxybenzoic acid and its salts, sorbic acid, diethyl pyrocarbonate, dimethyl pyrocarbonate, preferably benzoic acid and its salts, most preferably sodium benzoate. The preservative is preferably present in an amount of 0.1 to 3% by weight, preferably 0.3% to 1.5% by weight, wherein the weight is calculated for the protonated form of the preservative.

[0121] External structurants

[0122] The detergents of the present invention can further modify their rheology by using one or more external structurants that form a structured network within the detergent. Examples of such materials include hydrogenated castor oil, microfiber cellulose, and citrus pulp fibers. The presence of an external structurant can provide shear-thinning rheology and can also enable materials such as encapsulates and visual cues to be stably suspended in the liquid.

[0123] The liquid detergent according to the invention preferably does not contain tocopherols in an amount of 0.001 to 2% by weight. Omitting these antioxidants from the detergent reduces the ingredient list and simplifies the manufacturing. For the same reason, the liquid composition according to the invention also preferably does not contain pearlescent agents as disclosed in US2008 / 0234169. These pearlescent agents are crystalline or glassy solids that are able to reflect and refract light to produce a pearlescent effect. Such pearlescent agents complicate the manufacturing.

[0124] Although not preferred, such tocopherols and pearlescent agents may be present in liquid detergents according to the invention.

[0125] Where the liquid detergent is a laundry detergent it is further preferred that it does not contain peroxygen bleaches such as sodium percarbonate, sodium perborate and peracids.

[0126] An exemplary detergent of the present invention is an aqueous liquid detergent containing a surfactant system, a dye, an alkoxylated polyamine, a chelating agent, a builder, a perfume, a preservative and one or more enzymes, and contained in a container having an internal volume of 0.5 to 5 L, wherein at least 15% of the outwardly facing surface area is composed of a cellulose-containing material.

[0127] Detergent form

[0128] The liquid detergent may be in any suitable form, such as a multi-dose liquid and / or a unit-dose liquid in a water-soluble film. In either case, spillage to the exterior of the container may occur by pouring (such as as a liquid) or accidental breakage of the unit dose when removed from the container. Preferably, the product is in the form of a container containing a multi-dose detergent liquid.

[0129] The liquid detergent according to the present invention can be prepared by using conventional techniques known in the field of liquid detergent manufacturing. Typically, the method includes the steps of adding the ingredients in any suitable order and mixing the ingredients to the desired uniformity before filling the container. The container can be filled directly with liquid, such as in the case of a plastic bottle or a container with a plastic liner, or can be filled with a single unit dose containing a liquid detergent. Preferred unit doses are those with a water-soluble film and having more than one compartment.

[0130] In a preferred embodiment, the liquid detergent is isotropic.The detergent is preferably aqueous.Preferably, the liquid detergent is a laundry detergent.

[0131] Unless otherwise stated, preferences stated in the context of one aspect of the invention (eg a detergent product) also apply mutatis mutandis as preferences in the context of one of the other aspects (eg use of alkoxylated polyamines to reduce staining thereof).

[0132] The invention will now be illustrated by the following non-limiting examples.

[0133] Example

[0134] Example 1 - Effect of Including Ethoxylated Polyamine Polymers.

[0135] A4 Card White Silkweave Linen Textured Matt was obtained from Amazon. The paperboard is recyclable, acid-free, and elemental chlorine-free. Paperboard dye staining was compared with detergent formulations with and without the addition of ethoxylated polyamine polymers.

[0136] A detergent formulation was prepared by dissolving the following dye, which was a blue ethoxylated anthraquinone dye:

[0137]

[0138] 0.5mg dye is dissolved in 2g of clean C16-18, C18 unsaturated methyl ester ethoxylate, which has a molar average of 10 EO groups. Surfactant-dye solution is divided into two parts, one of which adds 1% by weight of ethoxylated polyamine polymer as described in WO2021118814 (Unilever). 50 microliters of surfactant-dye solution (one adds ethoxylated polyamine polymer, and one does not add ethoxylated polyamine polymer) are pipetted onto the separate part of the card, and placed on a flat surface at room temperature for 1 hour. After this incubation period, the card is rinsed under the tap of running water for 10 seconds, dried, and the area of ​​the residual dye spot is measured using a ruler, and the results are provided in Table 1 below.

[0139] Table 1: Effect of ethoxylated polyamines on dye-stained area.

[0140]

[0141] The results of this experiment surprisingly show that the addition of 1 wt% of the ethoxylated polyamine polymer significantly reduces the area of ​​dye on the card.

[0142] Example 2 - Comparison of Surfactant Types.

[0143] A 10% aqueous solution of three different nonionic surfactants was prepared using Acid Violet 50 (5 mg dye / 20 g nonionic surfactant solution). The nonionic surfactants tested were:

[0144] (i) C12-15 alcohol ethoxylates having a molar average of 7EO(ethoxylate)

[0145] (ii) C16-18, C18 unsaturated alcohol ethoxylates having a molar average of 10 EO groups;

[0146] (iii) C16-18, C18 unsaturated methyl ester ethoxylates having a molar average of 10 EO groups

[0147] For cellulose-containing surfaces, the same card type as in Experiment 1 was used. 50 microliters of surfactant-dye aqueous solution were pipetted onto the card and placed on a flat surface for 1 hour at room temperature, then rinsed under a running tap for 10 seconds, dried and the residual dye staining area was measured. The results are given in Table 2 below:

[0148] Table 2: Effect of surfactant type on dye staining area.

[0149]

[0150] The results of this experiment surprisingly showed that different types of nonionic surfactants can affect the size of the stained area on the card.

[0151] Example 3 - Comparison of dye types

[0152] For cellulose-containing surfaces, the same card type as in Experiment 1 or 2 was used. Comparative Example 1 Anthraquinone and Example 2 Acid Violet 50 card dyeing. Solutions of dye were prepared in neat C16-18, C18 unsaturated methyl ester ethoxylate (with a molar average of 10 EO groups) or in an aqueous solution with 10 wt % of the same surfactant. The same exposure test as in the previous example was performed: 50 microliters of the (aqueous) surfactant-dye solution was pipetted onto the card and placed on a flat surface at room temperature for 1 hour, then rinsed under a running tap for 10 seconds, dried and the area of ​​residual dye staining was measured. The results are given in Table 3 below:

[0153] Table 3: Effect of dye type in neat or 10% surfactant solution.

[0154]

[0155]

[0156] The results of this experiment surprisingly showed that different types of dyes provided different effects on the size of the dyed area on the card.

Claims

1. A detergent container comprising a liquid detergent composition; wherein the container has an internal volume of 0.1 L to 10 L; and wherein the container has at least 5% of its outwardly facing surface area comprised of cellulose-containing material, based on the total outwardly facing container surface area; and wherein the liquid detergent composition comprises: 5 to 60 wt% of a surfactant; and Alkoxylated polyamines; and ·dye.

2. A detergent container comprising a liquid detergent composition according to claim 1, wherein the outwardly facing surface area is at least 10%, preferably at least 15%, more preferably at least 20%, and even more preferably at least 25%, as based on the total outwardly facing container surface area.

3. A detergent container comprising a liquid detergent composition according to claim 1 or claim 2, wherein the alkoxylated polyamine comprises an alkoxylated polyethyleneimine, preferably having a weight average molecular weight (MW) of 300 to 10,000. w ), even more preferably those which additionally have an average degree of ethoxylation of from 10 to 30, and even more preferably polyethyleneimines having from 15 to 25 ethoxy groups per NH group in the polyethyleneimine backbone.

4. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the alkoxylated polyamine is in the form of: in R1 is C3 to C8 alkyl; X is (C2H4O) n Y group, wherein n is 15 to 30; m is 2 to 10, preferably 2, 3, 4 or 5; and wherein ·Y is selected from OH and SO3 - , and preferably SO3 - The number of groups is greater than the number of OH groups, and wherein more preferably 0, 1 or 2 OH groups are present; and wherein X and R1 may contain an ester group therein; and wherein X may contain a carbonyl group, preferably an ester group.

5. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the alkoxylated polyamine contains ester (COO) or amide (CONH) groups in the structure, preferably these groups are arranged so that, when all ester or amide groups are hydrolyzed, at least one, preferably all, of the hydrolyzed fragments have a molecular weight of less than 4000, preferably less than 2000, most preferably less than 1000.

6. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the surfactant comprises an ethoxylated nonionic surfactant having an alkyl moiety from C16 to C22 and a molar average degree of ethoxylation of at least 8 EO and preferably having a molar average degree of ethoxylation of at least 9 and more preferably at least 10.

7. A detergent container comprising a liquid detergent composition according to any one of the preceding claims, wherein the surfactant comprises an ethoxylated nonionic surfactant having an alkyl moiety from C16 to C22 and a molar average degree of ethoxylation of at least 8 EO in an amount of at least 20 wt%, more preferably at least 40 wt%, even more preferably at least 60 wt%, and still even more preferably at least 80 wt%, based on the total amount of nonionic surfactant.

8. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the amount of dye is from 0.00001 to 0.5 wt%, more preferably from 0.0001 to 0.1 wt%, and even more preferably from 0.0005 to 0.05 wt%, as based on the total weight of the liquid detergent.

9. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the dye comprises a dye containing a molar average of 0, 1, 2, 3, 4 or 5 alkoxylate groups, wherein dyes having a lower molar average of alkoxy groups are preferred.

10. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the dye comprises a dye which is charged at pH 7 in water under otherwise standard conditions.

11. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the alkoxylated anthraquinone, if present, is present in an amount of less than 0.1 wt%, more preferably less than 0.05 wt%, even more preferably less than 0.005 wt%.

12. A detergent container comprising a liquid detergent composition according to any of the preceding claims, wherein if the container comprises plastic, the plastic of the container comprises at least 30 wt%, preferably at least 50 wt%, more preferably 70 wt%, even more preferably at least 90 wt% of recycled plastic, preferably post-consumer recycled plastic, based on the total amount of plastic in the container, or is obtainable by a process using at least 30 wt%, preferably at least 50 wt%, more preferably 70 wt%, even more preferably at least 90 wt% of recycled plastic, preferably post-consumer recycled plastic, based on the total amount of plastic raw materials, wherein the remainder may be virgin plastic.

13. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein the container is in the form of a bottle made of a rigid plastic material, comprising a cellulose-containing sticker, sleeve or combination thereof; or in the form of a carton, wherein a portion of the outwardly facing surface area of ​​the carton is not covered by a plastic-containing sticker or sleeve.

14. A detergent container comprising a liquid detergent composition according to any preceding claim, wherein at least a portion of the at least 5% outwardly facing surface area becomes visibly wetted if the following procedure is applied to a representative area: applying a 50 microliter droplet of a 10 weight percent aqueous linear alkyl sulfonate solution to a surface oriented horizontally and facing upward; incubating the droplet for 10 minutes at 20 degrees Celsius and under otherwise standard conditions, wiping off the droplet, and observing whether the area of ​​the droplet becomes wetted, wherein the procedure is repeated up to 10 times, preferably 5 times, and more preferably at least 1 time.

15. Use of an alkoxylated polyamine for reducing dye staining of dye-containing liquid detergents on cellulose-containing containers.

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