Use of sulfated ethoxylated guerbet alcohols in textile auxiliary formulations
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- BASF SE
- Filing Date
- 2024-07-25
- Publication Date
- 2026-06-03
AI Technical Summary
Existing textile auxiliary formulations face challenges in achieving alkaline stability, wetting power under alkaline conditions, minimal foaming, and easy handling, particularly with anionic surfactants like secondary alcohol C16/18 alkyl sulfates which have poor alkaline stability and high foaming tendency.
The use of sulfated ethoxylated C8-C11 Guerbet alcohols in textile auxiliary formulations, which exhibit a number average degree of ethoxylation ranging from 2 to 8, preferably 2.5 to 6, providing improved alkaline stability, wetting power, reduced foaming, and easier handling.
Sulfated ethoxylated C8-C11 Guerbet alcohols demonstrate enhanced alkaline stability, superior wetting power under alkaline conditions, quick collapse of foam, and improved handling characteristics, making them an effective anionic surfactant for textile auxiliary formulations.
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Abstract
Description
USE OF SULFATED ETHOXYLATED GUERBET ALCOHOLS IN TEXTILE AUXILIARY FORMULATIONSTechnical Field
[0001] The invention relates to use of sulfated ethoxylated C8-C11 Guerbet alcohols in textile auxiliary formulations for textile processing, and textile auxiliary formulations comprising a sulfated ethoxylated C8-C11 Guerbet alcohol, particularly pretreatment formulations such as scouring formulations, detergent formulations and deaerator formulations, or non-woven surface modification formulations. The invention also relates to a method for manufacturing a textile material, including at least one step of contacting the textile material with a processing composition comprising a sulfated ethoxylated C8-C11 Guerbet alcohol.Background
[0002] During textile processing such as preparation, dyeing, printing and finishing operations, various auxiliaries are required so as to enable the processing to be carried out more effectively, which are generally known as textile auxiliaries. Formulations containing any textile auxiliary (i.e., textile auxiliary formulations) , for example deaerator formulations useful in denim cone dyeing and scouring / detergent formulations useful in cotton pretreatment, are required to have wetting power, especially under an alkaline condition which prevails in some operations, while resulting in no generation of foam or stable foam. Higher wetting power and lower foaming tendency are always pursued for those textile auxiliary formulations. The easiness in handling is also desired for the textile auxiliary formulations to avoid gelling during preparation of the formulations or high viscosity of the prepared formulations, which will make the operations difficult or inefficient as observed for textile auxiliary formulations comprising certain anionic surfactant auxiliaries.
[0003] Surfactants are important in textile industry which are effective to provide good wettability for the textile fabrics and also good washing and cleaning effects. Anionic surfactants are widely used as a main type of surfactants in textile auxiliary formulations, for example alkyl ether phosphonates which however have been forbidden in textile industry with regulations, secondary alcohol C16 / 18 alkyl sulfates which however have a poor alkaline stability and a high foaming tendency, and C12 / 14 alkyl ether sulfates which however are not good to provide wetting power.
[0004] There is a need to provide an anionic surfactant useful in textile auxiliary formulations, which has a comprehensive performance with respect to following properties:
[0005] -alkaline stability;
[0006] -wetting power under alkaline condition;
[0007] -no foaming or quick collapse of foam; and
[0008] -easy handling.Summary of Invention
[0009] It is an object of the present invention to find an anionic surfactant auxiliary useful in textile auxiliary formulations, which could exhibit a comprehensive performance with respect to the stability under alkaline conditions, wetting power, foaming behavior, viscosity and dilution behavior in the textile auxiliary formulations.
[0010] It was found by the inventors that the object can be achieved by sulfated ethoxylated C8-C11 Guerbet alcohols.
[0011] Accordingly, in the first aspect, the present invention relates to use of a sulfated ethoxylated C8-C11 Guerbet alcohol in a textile auxiliary formulation.
[0012] Particularly, the present invention relates to use of a sulfated ethoxylated C8-C11 Guerbet alcohol in textile auxiliary formulations, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol has a number average degree of ethoxylation in the range of 2 to 8, preferably 2.5 to 6.
[0013] In the second aspect, the present invention relates to a textile auxiliary formulation comprising a sulfated ethoxylated C8-C11 Guerbet alcohol, particularly a sulfated ethoxylated C8-C11 Guerbet alcohol having a number average degree of ethoxylation in the range of 2 to 8, preferably 2.5 to 6.
[0014] In the third aspect, the present invention relates to a method for manufacturing a textile material, including at least one step of contacting the textile material with a processing composition comprising a sulfated ethoxylated C8-C11 Guerbet alcohol. Particularly, the ethoxylated C8-C11 Guerbet alcohol has a number average degree of ethoxylation in the range of 2 to 8, preferably 2.5 to 6.Detailed Description
[0015] The singular forms “a” , “an” and “the” include plural referents unless the context clearly dictates otherwise. The terms “comprise (s) ” , “comprising” , etc. are used interchangeably with “contain (s) ” , “containing” , etc. and are to be interpreted in a non-limiting, open manner. That is, e.g., further components or elements can be present. The expressions “consist (s) of” or “consisting of” or cognates can be embraced within “comprise (s) ” or “comprising” or cognates. The terms “include (s) ” , “including” , etc. are to be interpreted in a non-limiting, open manner.
[0016] Herein, the term “textile” is intended to encompass both woven and non-woven.
[0017] Herein, the terms “textile auxiliary formulation” and “textile auxiliary formulations” are intended to refer to any auxiliary formulations for pretreatment or treatment of textile materials, including woven and non-woven fabric pieces, and also fiber and yarn materials from which textile is manufactured.
[0018] In the first aspect, the present invention provides use of a sulfated ethoxylated C8-C11 Guerbet alcohol in a textile auxiliary formulation.
[0019] Sulfated ethoxylated C8-C11 Guerbet alcohol may be referred to as sulfated C8-C11 Guerbet alcohol ethoxylates or C8-C11 Guerbet alcohol ethoxylate sulfates. Suitable sulfated ethoxylated C8-C11 Guerbet alcohols may have a number-average degree of ethoxylation in the range of 2 to 8 preferably in the range of 2.5 to 6.
[0020] In some embodiments, the ethoxylated C8-C11 Guerbet alcohol may be sulphated ethoxylated C8 Guerbet alcohol or C10 Guerbet alcohol.
[0021] In some particular embodiments, the sulfated ethoxylated C8-C11 Guerbet alcohol is sulphated ethoxylated C10 Guerbet alcohol represented by formula (I) :
[0022] wherein
[0023] n represents a number-average degree of ethoxylation, preferably in the range of 2 to 8, more preferably in the range of 2.5 to 6, and
[0024] M+ is a cation, preferably sodium cation, lithium cation, potassium cation or ammonium cation, more preferably sodium cation.
[0025] It will be understood that the sulphated ethoxylated C8-C11 Guerbet alcohol suitable for the present invention may be in form of a mixture of sulphated ethoxylated Guerbet alcohols with different degrees of ethoxylation. For example, the sulphated ethoxylated C10 Guerbet alcohol suitable for the present invention may be in form of a mixture of sulphated ethoxylated C10 Guerbet alcohols with different degrees of ethoxylation. That is the reason why the index “n” in the formula (I) may not necessarily be an integer.
[0026] Preferably, the sulphated ethoxylated C8-C11 Guerbet alcohol, particularly the sulphated ethoxylated C10 Guerbet alcohol, has a number-average degree of ethoxylation in the range of 3 to 6, particularly in the range of 3 to 5, for example 3, 4 or 5.
[0027] More preferably, the sulphated ethoxylated C8-C11 Guerbet alcohol, particularly the sulphated ethoxylated C10 Guerbet alcohol, has a degree of ethoxylation of 4 or 5, for example 4.
[0028] Suitable sulphated ethoxylated C8-C11 Guerbet alcohols for the present invention may be prepared from corresponding ethoxylated C8-C11 Guerbet alcohols, for example ethoxylated C10 Guerbet alcohol by sulphonating via any conventional process. Examples of commercially available ethoxylated C10 Guerbet alcohols are known and under XP30, XP40 and XP50, XL40, XL 50, XL 60, XL 70, XL 80 from BASF SE, Ludwigshafen, Germany.
[0029] According to the present invention, the sulfated ethoxylated C8-C11 Guerbet alcohol is particularly useful in pretreatment formulations such as scouring / detergent formulations and deaerator formulations, or non-woven surface modification formulations.
[0030] The scouring / detergent formulations are widely used in textile industry for treating fibers, yarns or textiles, for example before dyeing, bleaching, printing, and / or finishing, to remove soluble and insoluble impurities which may be natural, added and adventitious impurities, for example, oils, waxes, fats, vegetable matter, as well as dirt.
[0031] The scouring / detergent formulations are generally in form of aqueous solution of a surfactant, and optionally comprise one or more further components such as desizing agent, oxidant, alkali agent, bleaching agent, fluorescent whitening agent, stabilizer, defoaming agent and organic solvent.
[0032] According to the present invention, the sulphated ethoxylated C8-C11 Guerbet alcohol, preferably sulphated ethoxylated C10 Guerbet alcohol may be used in the scouring / detergent formulations as the sole surfactant or in combination with one or more other surfactant.
[0033] The other surfactant may be cationic, anionic, nonionic or amphoteric surfactant or a combination thereof. Particularly, the surfactant may be anionic surfactant, nonionic surfactant or a combination thereof. Conventional nonionic surfactants useful for the scouring / detergent formulations are for example adducts of C8-20-aliphatic alcohol with alkylene oxide such as ethylene oxide and / or propylene oxide, adducts of C6-20-alkyl phenols with alkylene oxide such as ethylene oxide and / or propylene oxide, and alkyl polyglycosides such as C8-18-alkyl polyglycosides. Conventional anionic surfactants useful for the scouring / detergent formulations are for example alkyl ether phosphonates, alkyl sulfates, alkyl ether sulfates, linear alkylsulfonic acid salts and alkylnaphthalenesulfonic acid salts.
[0034] The desizing agent may be for example enzymes such as malt enzyme and pancreatic enzyme, acids such as sulfuric acid and hydrochloric acid, or sodium hydroxide.
[0035] The oxidant may be for example alkali metal bromates such as sodium bromate, peroxides such as hydrogen peroxide and peroxydisulfuric acid, and alkali metal hypochlorites such as sodium hypochlorite.
[0036] The alkali agent may be for example sodium carbonates or hydrates thereof, sodium hydrogencarbonate, sodium silicates, Borax, ammonium hydroxide and sodium dihydrogen phosphate.
[0037] The bleaching agent may be for example oxidative bleaches including chlorine bleaches such as bleached powder, sodium hyperchlorite, sodium chlorite and isocyanuric trichloride, and peroxide bleaches such as hydrogen peroxide, sodium peroxide, sodium perborate, potassium permanganate and peracetic acid, and reducing bleaches such as sulfur dioxide, sodium hydrogen sulfite, and sodium dithionite or hydrates thereof.
[0038] The fluorescent whitening agent, also called optical brighteners, may be for example triazine-stilbenes (di-, tetra-or hexa-sulfonated) , coumarins, imidazolines, diazoles, triazoles, benzoxazolines and biphenyl-stilbenes.
[0039] The stabilizer may be for example silicates such as sodium silicates, polycarboxylic acid, polyphosphates such as sodium tripolyphosphate, aminocarboxylic acids such as ethylenediaminetetraacetic acid (EDTA) , organo-phosphonic acids, hydroxycarboxylic acids, and sodium salt of carboxymethyl cellulose (CMC) .
[0040] The defoaming agent may be for example non-silicone defoamer such as mineral oil, polypropylene glycol, kerosene and polyether, and silicon defoamer such as silicone oil, polyether modified silicone oil and silica gel / silicone mixture.
[0041] The organic solvent may be for example petroleum gasoline, aromatics such as benzene, chlorinated hydrocarbons such as trichloroethylene, tetrachloroethylene and carbon tetrachloride,
[0042] The composition of the scouring / detergent formulations may be varied depending on the type of the substrate to be treated. The composition can be determined according to conventional formulations provided that the sulfated ethoxylated C8-C11 Guerbet alcohol is used in place of or in addition to the surfactant in the conventional formulations.
[0043] In some embodiments, the sulfated ethoxylated C8-C11 Guerbet alcohol are particularly useful for cotton scouring / detergent formulations.
[0044] The deaerator formulations were traditionally used in textile industry for improving the quality of dyeing, for example denim cone dyeing, which can get unwanted air pockets out of the substrate (yarn or textile) before the start of the dyeing process. It has been found that the deaerator formulations have versatility and can be used to improve a number of wet finishing processes for almost any substrate at any stage of processing.
[0045] The deaerator formulations are generally in form of aqueous solution and may comprise a defoaming agent, a penetrating agent, a surfactant, an emulsifying agent, and any other additives such as chelating agent.
[0046] The defoaming agent may be for example silicone defoamer such as silicone oil, polyether modified silicone oil and silica gel / silicone mixture, and non-silicone defoamer such as mineral or plant oils, triisoalkyl phosphates, fatty alcohols and fatty amides.
[0047] The penetrating agent may be for example alkyl ethers of polyhydric alcohols such as ethylene glycol monoalkyl ether, ethylene glycol monoalkyl ether acetate, diethylene glycol monoalkyl ether, triethylene glycol monoalkyl ether, propylene glycol monoalkyl ether, dipropylene glycol monoalkyl ether, and diols such as 1, 2-pentanediol, 1, 2-hexanediol, 1, 3-propanediol, 1, 4-butanediol, 1, 5-pentanediol, 1, 6-hexanediol, 1, 7-heptanediol and 1, 8-octanediol.
[0048] Conventionally useful surfactant may be cationic, anionic, nonionic, amphoteric surfactant or a combination thereof. Particularly, the surfactant may be anionic surfactant, nonionic surfactant or a combination thereof. Conventional nonionic surfactants useful for the deaerator formulations are for example adducts of C8-20-aliphatic alcohol with alkylene oxide such as ethylene oxide and / or propylene oxide, adducts of C6-20-alkyl phenols with alkylene oxide such as ethylene oxide and / or propylene oxide, and alkyl polyglycosides such as C8-18-alkyl polyglycosides. Conventional anionic surfactants useful for the scouring / detergent formulations are for example alkyl ether phosphonates, alkyl sulfates, alkyl ether sulfates, linear alkylsulfonic acid salts, alkylnaphthalenesulfonic acid salts.
[0049] According to the present invention, the sulphated ethoxylated C8-C11 Guerbet alcohol may be used in the deaerator formulations as the sole surfactant or in combination with one or more other surfactant as described above.
[0050] The emulsifying agent may be for example ethoxylated fatty alcohols, ethoxylated alkyl phenols.
[0051] The composition of the deaerator formulations may be varied depending on the type of the substrate to be treated. The composition can be determined according to conventional formulations provided that the sulfated ethoxylated C8-C11 Guerbet alcohol is used in place of or in addition to the surfactant in the conventional formulations.
[0052] The non-woven surface modification formulations in which the sulfated ethoxylated C8-C11 Guerbet alcohol may be used may have a conventional composition, except that the sulfated ethoxylated C8-C11 Guerbet alcohol is used in place of or in addition to any surfactant used in the conventional formulations.
[0053] In some embodiments, the sulfated ethoxylated C8-C11 Guerbet alcohol may be used as the sole anionic surfactant in a textile auxiliary formulation, particularly in a pretreatment formulation such as scouring / detergent formulation and deaerator formulation, or a non-woven surface modification formulation. Optionally, the sulfated ethoxylated C8-C11 Guerbet alcohol may be used as the sole anionic surfactant together with a nonionic surfactant. The nonionic surfactant is preferably C10 Guerbet alcohol ethoxylate, particularly having a degree of ethoxylation in the range of 3 to 6, particularly in the range of 3 to 5, for example 3, 4 or 5.
[0054] Accordingly, in the second aspect, the present invention relates to a textile auxiliary formulation comprising a sulfated ethoxylated C8-C11 Guerbet alcohol, particularly to a pretreatment formulation such as scouring formulation , detergent formulation and deaerator formulation, or a non-woven surface modification formulation.
[0055] Suitable sulfated ethoxylated C8-C11 Guerbet alcohols may have a number-average degree of ethoxylation in the range of 2 to 8, preferably in the range of 2.5 to 6.
[0056] In some embodiments, the ethoxylated C8-C11 Guerbet alcohol may be sulphated ethoxylated C8 Guerbet alcohol or C10 Guerbet alcohol.
[0057] In some particular embodiments, the sulfated ethoxylated C8-C11 Guerbet alcohol is sulphated ethoxylated C10 Guerbet alcohol represented by formula (I) :
[0058] wherein
[0059] n represents a number-average degree of ethoxylation, preferably in the range of 2 to 8, more preferably in the range of 2.5 to 6, and
[0060] M+ is a cation, preferably sodium cation, lithium cation, potassium cation, or ammonium cation, more preferably sodium cation.
[0061] Preferably, the sulphated ethoxylated C8-C11 Guerbet alcohol, particularly the sulphated ethoxylated C10 Guerbet alcohol, has a number-average degree of ethoxylation in the range of 3 to 6, particularly in the range of 3 to 5, for example 3, 4 or 5.
[0062] More preferably, the sulphated ethoxylated C8-C11 Guerbet alcohol, particularly the sulphated ethoxylated C10 Guerbet alcohol, has a degree of ethoxylation of 4 or 5, for example 4.
[0063] The textile auxiliary formulation, particularly the scouring formulation, detergent formulation, the deaerator formulation, and the non-woven surface modification formulation may have any conventional compositions except that the sulphated ethoxylated C8-C11Guerbet alcohol as described herein is comprised in place of or in addition to any surfactant in the conventional formulations.
[0064] The content of the sulphated ethoxylated C8-C11 Guerbet alcohol in the textile auxiliary formulation may be varied depending on the intended function of the textile auxiliary formulation.
[0065] In some embodiments, the textile auxiliary formulation, particularly the scouring / detergent formulation, the deaerator formulation, and the non-woven surface modification formulation may comprise the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant. Optionally, the textile auxiliary formulation may comprise the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant, and a nonionic surfactant. The nonionic surfactant is preferably C8-C11 Guerbet alcohol ethoxylate, particularly having a degree of ethoxylation in the range of 3 to 6, particularly in the range of 3 to 5, for example 3, 4 or 5.
[0066] In the third aspect, the present invention provides a method for manufacturing a textile material, comprising at least one step of contacting the textile material with a processing composition comprising a sulfated ethoxylated C8-C11 Guerbet alcohol.
[0067] In the method for manufacturing a textile material, the at least one step includes, but is not limited to pretreatment step, dyeing step or finishing process. Particularly, in the method for manufacturing a textile material, the at least one step may be carried out under an alkaline condition.
[0068] Suitable textile materials to be manufactured with the method may include, but are not limited to, woven or non-woven fabric pieces, yarn materials and fiber materials.
[0069] Suitable sulfated ethoxylated C8-C11 Guerbet alcohols may have a number-average degree of ethoxylation in the range of 2 to 8, preferably in the range of 2.5 to 6.
[0070] In some embodiments, the ethoxylated C8-C11 Guerbet alcohol may be sulphated ethoxylated C8 Guerbet alcohol or C10 Guerbet alcohol.
[0071] In some particular embodiments, the sulfated ethoxylated C8-C11 Guerbet alcohol is sulphated ethoxylated C10 Guerbet alcohol represented by formula (I) :
[0072] wherein
[0073] n represents a number-average degree of ethoxylation, preferably in the range of 2 to 8, more preferably in the range of 2.5 to 6, and
[0074] M+ is a cation, preferably sodium cation, lithium cation, potassium cation, or ammonium cation, more preferably sodium cation.
[0075] Preferably, the sulphated ethoxylated C8-C11 Guerbet alcohol, particularly the sulphated ethoxylated C10 Guerbet alcohol, has a number-average degree of ethoxylation in the range of 3 to 6, particularly in the range of 3 to 5, for example 3, 4 or 5.
[0076] More preferably, the sulphated ethoxylated C8-C11 Guerbet alcohol, particularly the sulphated ethoxylated C10 Guerbet alcohol, has a degree of ethoxylation of 4 or 5, for example 4.
[0077] The processing composition comprising a sulfated ethoxylated C8-C11 Guerbet alcohol as used in the method for manufacturing a textile material may be any formulations, for example textile auxiliary formulations, particularly a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation. Any textile auxiliary formulations as described in general or with preference for the second aspect of the present invention may be applied here by reference.
[0078] According to some preferred embodiments, the sulfate ethoxylated C8-C11 Guerbet alcohol of the present invention may additionally comprise propoxy groups (in combination with the ethoxy groups of the sulfated ethoxylated C8-C11 Guerbet alcohol) .
[0079] Embodiments
[0080] Various embodiments are listed below. It will be understood that the embodiments listed below may be combined with all aspects and other embodiments in accordance with the scope of the invention.
[0081] Embodiment 1. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol in a textile auxiliary formulation.
[0082] Embodiment 2. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to claim 1, wherein the textile auxiliary formulation is a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation.
[0083] Embodiment 3. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to Embodiment 1 or 2, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation in the range of 2 to 8.
[0084] Embodiment 4. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of Embodiments 1 to 3, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol is a sulfated ethoxylated C10 Guerbet alcohol represented by formula (I) :
[0085] wherein
[0086] n represents a number-average degree of ethoxylation, preferably in the range of 2 to 8, and M+ is a cation, preferably sodium cation, lithium cation, potassium cation or ammonium cation.
[0087] Embodiment 5. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of Embodiments 1 to 4, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation in the range of 2.5 to 6.
[0088] Embodiment 6. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to Embodiment 5, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation in the range of 3 to 6.
[0089] Embodiment 7. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to Embodiment 6, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation in the range of 3 to 5.
[0090] Embodiment 8. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to Embodiment 7, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation of 3, 4 or 5.
[0091] Embodiment 9. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of Embodiments 1 to 8, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol is used as the sole anionic surfactant in the textile auxiliary formulation.
[0092] Embodiment 10. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of Embodiments 1 to 9, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol is used as the sole anionic surfactant together with a nonionic surfactant.
[0093] Embodiment 11. Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to Embodiment 10, wherein the nonionic surfactant is a C8-C11 Guerbet alcohol ethoxylate nonionic surfactant, preferably having a degree of ethoxylation in the range of 3 to 6.
[0094] Embodiment 12. A method for manufacturing a textile material, including at least one step of contacting the textile material with a processing composition comprising a sulfated ethoxylated C8-C11 Guerbet alcohol, preferably the sulfated ethoxylated C8-C11 Guerbet alcohol as defined in any of Embodiments 3 to 8.
[0095] Embodiment 13. The method according to Embodiment 12, wherein the processing composition is a textile auxiliary formulation.
[0096] Embodiment 14. The method according to Embodiment 13, wherein textile auxiliary formulation is a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation.
[0097] Embodiment 15. The method according to any of Embodiments 12 to 14, wherein the processing composition comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant.
[0098] Embodiment 16. The method according to any of Embodiments 12 to 15, wherein the processing composition comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant, and a nonionic surfactant.
[0099] Embodiment 17. The method according to Embodiment 16, wherein the nonionic surfactant is a C8-C11 Guerbet alcohol ethoxylate nonionic surfactant, preferably having a degree of ethoxylation in the range of 3 to 6.
[0100] Embodiment 18. A textile auxiliary formulation, which comprises a sulfated ethoxylated C8-C11 Guerbet alcohol, particularly a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation.
[0101] Embodiment 19. The textile auxiliary formulation according to Embodiment 18, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol is as defined in any of Embodiments 3 to 8.
[0102] Embodiment 20. The textile auxiliary formulation according to Embodiment 18 or 19, which comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant.
[0103] Embodiment 21. The textile auxiliary formulation according to any of Embodiments 18 to 20, which comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant, and a nonionic surfactant.
[0104] Embodiment 22. The textile auxiliary formulation according to Embodiment 21, wherein the nonionic surfactant is a C8-C11 Guerbet alcohol ethoxylate nonionic surfactant, preferably having a degree of ethoxylation in the range of 3 to 6.
[0105] Examples
[0106] Aspects of the present invention will be more fully illustrated by the following examples, which are set forth to illustrate certain aspects of the present invention and are not to be construed as limiting thereof.
[0107] Chemicals:
[0108] AIS 1: anionic surfactant, sulfated ethoxylated C10 Guerbet alcohol, 4EO, sodium salt, commercially available from BASF.
[0109] AIS 2: anionic surfactant, C12 / 14 alkyl sulfates, sodium salt, commercially available from BASF.
[0110] AIS 3: anionic surfactant, sodium salt of secondary C14 / C17 alkane sulfonate, commercially available from Clariant.
[0111] AIS 4: anionic surfactant, 2-ethylhexyl sulfate, sodium salt, commercially available from BASF.
[0112] NIS 1: nonionic surfactant, C10 Guerbet alcohol ethoxylates, 5EO, commercially available from BASF.
[0113] NIS 2: nonionic surfactant, saturated iso-C13-alcohol ethoxylates, 7EO, commercially available from BASF.
[0114] AIS 5: anionic surfactant, C12 / C14 alkyl ether sulfates, 4EO, sodium salt, commercially available from BASF.
[0115] AIS 6: anionic surfactant, C12 / 14 alkyl ether sulfates, 2EO, sodium salt, commercially available from BASF.
[0116] In the Examples, the percentages refer to percentages by active weight of chemicals, unless otherwise explicitly specified.
[0117] Test 1 Alkaline Stability
[0118] Textile production and treatment are often carried out at an alkaline condition. The alkaline stability is therefore an important property for any components of a textile auxiliary formulation. The alkaline stability was measured according to GB / T 5556-2003, with 5g / L surfactant in different concentrations of NaOH solution at different temperatures. A 400g / L aqueous NaOH solution was prepared in a 500ml volumetric flask. The above NaOH solution was diluted and surfactant was added to prepare aqueous NaOH solutions with different concentrations having 5g / L surfactant through evenly stirring. The prepared solution was placed in a water bath of 70 ℃ for 2 hours or at room temperature for 24 hours. The appearance changes of those solutions were evaluated and recorded in accordance with following grades.
[0119] The results obtained from the tested surfactants are summarized in Table 1 below.
[0120] Table 1 alkaline stability at 23℃ for 24 hours
[0121] Table 2 the alkaline stability at 70℃ for 2 hours
[0122] It can be seen that the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant has better alkaline stability than the C14 / 17 alkyl sulfate anionic surfactant (AIS 3) and than the C10 Guerbet alcohol ethoxylate nonionic surfactant, which is even stable at an alkaline concentration as high as 150 g / L. The high temperature alkaline stability of the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant is also excellent. The sulfated ethoxylated C10 Guerbet alcohol is very suitable for textile production pretreatment and dyeing process. Compared to 2-ethylhexyl sulfate anionic surfactant (AIS 4) , the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant shows a comparable alkaline stability, but better wetting performance as measured in Test 2.
[0123] Test 2 Wetting Power Under Alkaline Conditions
[0124] The wetting power at various pH values were measured with different dosages of NaOH as shown in Table 3. The measurement was carried out according to GB / T 11983-2008. The gray cotton disc having been dried was controlled by the immersion clip and immersed in the aqueous solution. The time when the cotton disc begins to sink after being wetted by water was recorded. Formulations as tested and the wetting power results are summarized in Tables 3-1 to 3-3 below.
[0125] Table 3-1
[0126] Table 3-2
[0127] Table 3-3
[0128] It can be seen that the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant shows desirable wetting performance. When being used alone as the surfactant, compared to other anionic surfactants, the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant is more effective in terms of wetting for both high and low alkali concentrations.
[0129] The sulfated ethoxylated C10 Guerbet alcohol anionic surfactant can unexpectedly perform much better for wetting at relatively high alkaline conditions with a NaOH dosage in the range of 20 g / L to 80 g / L.
[0130] Test 3 Foaming Behavior Under Neutral pH
[0131] Foaming behavior of different surfactants was characterized by foaming and defoaming rates. After flowing 600ml of an aqueous surfactant solution into Ross Miles foam test apparatus (slowly to avoid foaming) , the foam volume was measured from the height of the foam generated onto the liquid surface of the same solution cyclically and continuously at room temperature. The foam volume was recorded per 30 sec. The results of foaming behavior as recorded are summarized in Table 4.
[0132] Table 4 Dosage for foaming test
[0133] Table 5 Foaming behavior *Vol (ml) refers to foam volume
[0134] As can be seen from Table 5, the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant alone has extremely low foaming at a dosage of 0.5g / L or lower. The foaming of the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant slightly rises when the dosage is increased to 1g / L, which is however still much lower than other anionic surfactants. Other anionic surfactants as comparative examples have very high foaming ability and stable foam is generated.
[0135] Moreover, the defoaming speed of the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant is surprisingly much faster than other anionic surfactants. The quick foaming collapse is critical for textile process, and also for non-woven production as a foam booster.
[0136] Test 4 Foaming Behavior Under Different Alkaline Conditions
[0137] Foaming behavior was also tested under different alkaline conditions. The results are listed in Table 7.
[0138] Table 6 Formulation for foaming test
[0139] Table 7 Foaming behavior
[0140] Using sulfated ethoxylated C10 Guerbet alcohol in combination with an ethoxylated C10 Guerbet alcohol nonionic surfactant (NIS 1) , the maximum foaming boosting performance under 40g / L NaOH was observed for the formulation #4. When the dosage of NaOH increasing, the foaming becomes depressed as observed for the formulations #5 and #6.
[0141] Further, it was found by the inventors that the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant, when used in a scouring formulation containing NaOH and H2O2, could provide improved detergency as indicated with higher whiteness of the treated cotton fabric compared with the iso-C13-alcohol ethoxylate nonionic surfactant (NIS 2) and the C14 / C17 alkane sulfonate anionic surfactant (AIS 3) , while it provides desirable wetting power helping penetration into fabric as indicated with wicking properties.
[0142] It was also found by the inventors that the aqueous solutions of the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant have significantly lower viscosity at concentrations of up to 70 wt%compared with each aqueous solution of the C14 / C17 alkane sulfonate anionic surfactant (AIS 3) and of the ethoxylated C12 / 14 alkyl ether sulfate anionic surfactant (AIS 6) . Moreover, the sulfated ethoxylated C10 Guerbet alcohol anionic surfactant can be diluted within a significantly shorten period of time at concentrations of up to 70 wt%compared with the ethoxylated C12 / 14 alkyl ether sulfate anionic surfactant (AIS 6) .
[0143] Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It will be apparent to those of skill in the art that various modifications and variations can be made to the method and apparatus of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention include modifications and variations that are within the scope of the appended claims and their equivalents.
Claims
1.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol in a textile auxiliary formulation.2.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to claim 1, wherein the textile auxiliary formulation is a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation.3.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to claim 1 or 2, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation in the range of 2 to 8.4.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of claims 1 to 3, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol is a sulfated ethoxylated C10 Guerbet alcohol represented by formula (I) : whereinn represents a number-average degree of ethoxylation, preferably in the range of 2 to 8, andM+ is a cation, preferably sodium cation, lithium cation, potassium cation or ammonium cation.5.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of claims 1 to 4, wherein the sulphated ethoxylated C8-C11 Guerbet alcohol has a number-average degree of ethoxylation in the range of 2.5 to 6, preferably in the range of 3 to 6, particularly in the range of 3 to 5, for example 3, 4 or 5.6.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of claims 1 to 5, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol is used as the sole anionic surfactant in the textile auxiliary formulation.7.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any of claims 1 to 6, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol is used as the sole anionic surfactant together with a nonionic surfactant.8.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to claim 7, wherein the nonionic surfactant is a C8-C11 Guerbet alcohol ethoxylate nonionic surfactant, preferably having a degree of ethoxylation in the range of 3 to 6.9.Use of a sulfated ethoxylated C8-C11 Guerbet alcohol according to any one of claims 1 to 7, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol further comprises propoxy groups.10.A method for manufacturing a textile material, including at least one step of contacting the textile material with a processing composition comprising a sulfated ethoxylated C8-C11 Guerbet alcohol, preferably the sulfated ethoxylated C8-C11 Guerbet alcohol as defined in any of claims 3 to 5.11.The method according to claim 10, wherein the processing composition is a textile auxiliary formulation.12.The method according to claim 11, wherein textile auxiliary formulation is a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation.13.The method according to any of claims 10 to 12, wherein the processing composition comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant.14.The method according to any of claims 10 to 13, wherein the processing composition comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant, and a nonionic surfactant.15.The method according to claim 14, wherein the nonionic surfactant is a C8-C11 Guerbet alcohol ethoxylate nonionic surfactant, preferably having a degree of ethoxylation in the range of 3 to 6.16.A textile auxiliary formulation, which comprises a sulfated ethoxylated C8-C11 Guerbet alcohol, particularly a pretreatment formulation such as scouring formulation, detergent formulation and deaerator formulation, or a non-woven surface modification formulation.17.The textile auxiliary formulation according to claim 16, wherein the sulfated ethoxylated C8-C11 Guerbet alcohol is as defined in any of claims 3 to 5.18.The textile auxiliary formulation according to claim 16 or 17, which comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant.19.The textile auxiliary formulation according to any of claims 16 to 18, which comprises the sulfated ethoxylated C8-C11 Guerbet alcohol as the sole anionic surfactant, and a nonionic surfactant.20.The textile auxiliary formulation according to claim 19, wherein the nonionic surfactant is a C8-C11 Guerbet alcohol ethoxylate nonionic surfactant, preferably having a degree of ethoxylation in the range of 3 to 6.