WO2024126308A1 - Solid laundry composition - Google Patents
Solid laundry composition Download PDFInfo
- Publication number
- WO2024126308A1 WO2024126308A1 PCT/EP2023/084985 EP2023084985W WO2024126308A1 WO 2024126308 A1 WO2024126308 A1 WO 2024126308A1 EP 2023084985 W EP2023084985 W EP 2023084985W WO 2024126308 A1 WO2024126308 A1 WO 2024126308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- fatty acid
- composition according
- fabric conditioning
- conditioning composition
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 79
- 239000007787 solid Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 46
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 24
- 239000000194 fatty acid Substances 0.000 claims abstract description 24
- 229930195729 fatty acid Natural products 0.000 claims abstract description 24
- 230000003750 conditioning effect Effects 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 19
- 239000007884 disintegrant Substances 0.000 claims description 18
- -1 cationic quaternary ammonium compound Chemical class 0.000 claims description 15
- 239000003575 carbonaceous material Substances 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000001913 cellulose Substances 0.000 claims description 9
- 235000010980 cellulose Nutrition 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000002304 perfume Substances 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- 239000003093 cationic surfactant Substances 0.000 claims description 6
- 229940016286 microcrystalline cellulose Drugs 0.000 claims description 5
- 235000019813 microcrystalline cellulose Nutrition 0.000 claims description 5
- 239000008108 microcrystalline cellulose Substances 0.000 claims description 5
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 150000004676 glycans Chemical class 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- 229920001282 polysaccharide Polymers 0.000 claims description 3
- 239000005017 polysaccharide Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 22
- 239000002979 fabric softener Substances 0.000 description 14
- 125000003342 alkenyl group Chemical group 0.000 description 10
- 229910021389 graphene Inorganic materials 0.000 description 10
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 9
- 229910052740 iodine Inorganic materials 0.000 description 9
- 239000011630 iodine Substances 0.000 description 9
- 125000001453 quaternary ammonium group Chemical group 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 7
- 229920003086 cellulose ether Polymers 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 150000002170 ethers Chemical class 0.000 description 6
- HSHXDCVZWHOWCS-UHFFFAOYSA-N N'-hexadecylthiophene-2-carbohydrazide Chemical compound CCCCCCCCCCCCCCCCNNC(=O)c1cccs1 HSHXDCVZWHOWCS-UHFFFAOYSA-N 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 5
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 5
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000008247 solid mixture Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- 150000005690 diesters Chemical class 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 125000004185 ester group Chemical group 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 3
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 3
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000005691 triesters Chemical class 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 2
- 239000008109 sodium starch glycolate Substances 0.000 description 2
- 229940079832 sodium starch glycolate Drugs 0.000 description 2
- 229920003109 sodium starch glycolate Polymers 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 229940032147 starch Drugs 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920000715 Mucilage Polymers 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 101710110702 Probable chorismate pyruvate-lyase 1 Proteins 0.000 description 1
- 101710110695 Probable chorismate pyruvate-lyase 2 Proteins 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 150000003855 acyl compounds Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229940075506 behentrimonium chloride Drugs 0.000 description 1
- YSJGOMATDFSEED-UHFFFAOYSA-M behentrimonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)C YSJGOMATDFSEED-UHFFFAOYSA-M 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229940105329 carboxymethylcellulose Drugs 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229960000913 crospovidone Drugs 0.000 description 1
- 235000010947 crosslinked sodium carboxy methyl cellulose Nutrition 0.000 description 1
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 description 1
- BKRJTJJQPXVRRY-UHFFFAOYSA-M dodecyl-(2-hydroxyethyl)-dimethylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CCO BKRJTJJQPXVRRY-UHFFFAOYSA-M 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 150000002190 fatty acyls Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000006179 pH buffering agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 235000013809 polyvinylpolypyrrolidone Nutrition 0.000 description 1
- 229920000523 polyvinylpolypyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- UMSVPCYSAUKCAZ-UHFFFAOYSA-N propane;hydrochloride Chemical compound Cl.CCC UMSVPCYSAUKCAZ-UHFFFAOYSA-N 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 229940080313 sodium starch Drugs 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 239000001917 trigonella foenum graecum l. absolute Substances 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0052—Cast detergent compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/32—Amides; Substituted amides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
Definitions
- Solid fabric conditioners provide consumers with an easy-to-use concentrated fabric conditioner 10 composition. These compositions have various benefits including that they can contain high levels of active ingredient and have very low water content, leading to easier storage and transportation.
- Solid fabric conditioners come in different shapes and sizes, for example tablets, sheets, 15 shaped articles, etc. the ‘stickiness’ or lack of ‘stickiness’ is an important physical characteristic of a solid fabric conditioner. A sticky product may stick to other articles, is not easy for a consumer handle and could potentially leave residues on the consumers hands.
- a solid fabric conditioning 25 composition comprising: a Ester linked quaternary ammonium compound fabric softening active; b 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons; and 30 c 5 to 70 wt.% Water soluble carrier selected form polysaccharides.
- the invention further relates to a method of preparing a solid fabric conditioning composition
- a method of preparing a solid fabric conditioning composition comprising the steps of; 35 a Preparing a premix of the water-soluble carrier and water; P0000150 CPL 2 b Adding the fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients to the premix; c Casting the mixture on a surface or in a mold; and d Removing the water, preferably by evaporation.
- any feature of one aspect of the present invention may be utilised in any other aspect of the invention.
- the word “comprising” is intended to mean “including” but not necessarily “consisting of” or “composed of.” In other words, the listed steps or options need not be exhaustive. It is noted that the examples given in the description below are intended to clarify the invention and are not intended to limit the invention to those examples per se. 15 Similarly, all percentages are weight/weight percentages unless otherwise indicated. Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word “about”.
- compositions described herein comprise ester-linked quaternary ammonium fabric softening active.
- the quaternary ammonium compound (QAC) preferably comprises at least one chain derived 30 from fatty acids, more preferably at least two chains derived from a fatty acid. Generally fatty acids are defined as aliphatic monocarboxylic acids having a chain of 4 to 28 carbons.
- Fatty acids may be derived from various sources such as tallow or plant sources.
- the fatty acid chains are derived from plants.
- the fatty acid chains of the QAC comprise from 10 to 50 wt. % of saturated C18 chains and from 5 to 40 wt. % of monounsaturated C18 chains 35 by weight of total fatty acid chains.
- the fatty acid chains of P0000150 CPL 3 the QAC comprise from 20 to 40 wt. %, preferably from 25 to 35 wt. % of saturated C18 chains and from 10 to 35 wt. %, preferably from 15 to 30 wt. % of monounsaturated C18 chains, by weight of total fatty acid chains.
- the quaternary ammonium fabric softening actives for use in compositions described herein are so called "ester quats" or ester-linked quaternary ammonium compounds.
- Particularly preferred materials are the ester-linked triethanolamine (TEA) quaternary ammonium compounds comprising a mixture of mono-, di- and tri-ester linked components.
- TAA triethanolamine
- TEA-based fabric softening compounds comprise a mixture of mono, di- and tri ester forms of the compound where the di-ester linked component comprises no more than 70 wt.% of the fabric softening compound, preferably no more than 60 wt.% e.g., no more than 55%, or even no more that 45% of the fabric softening compound and at least 10 wt.% of the monoester linked component.
- a first group of quaternary ammonium compounds (QACs) suitable for use in the compositions are represented by formula (I): wherein each R is independently selected from a C5 to C35 alkyl or alkenyl group; R 1 20 represents a C1 to C4 alkyl, C2 to C4 alkenyl or a C1 to C4 hydroxyalkyl group; T may be either O-CO. (i.e. an ester group bound to R via its carbon atom), or may alternatively be CO-O (i.e.
- Preferred materials of this second group include 1,2 bis[tallowoyloxy]-3- trimethylammonium propane chloride, 1,2 bis[hardened tallowoyloxy]-3- trimethylammonium propane chloride, 1,2- bis[oleoyloxy]-3-trimethylammonium propane chloride, and 1,2 bis[stearoyloxy]-3- trimethylammonium propane chloride.
- Such materials are described in US 4, 137,180 (Lever10 Brothers).
- these materials also comprise an amount of the corresponding mono- ester.
- a third group of QACs suitable for use in the composition are represented by formula (III): 15 wherein each R 1 group is independently selected from C1 to C4 alkyl, or C2 to C4 alkenyl groups; and wherein each R 2 group is independently selected from C8 to C28 alkyl or alkenyl groups; and n, T, and X- are as defined above.
- Preferred materials of this third group include 20 bis(2-tallowoyloxyethyl)dimethyl ammonium chloride, partially hardened and hardened versions thereof.
- a particular example of the fourth group of QACs is represented the by the formula (IV): 5
- a fifth group of QACs suitable for use in the composition are represented by formula (V)
- R 1 and R 2 are independently selected from C10 to C22 alkyl or alkenyl groups, preferably C14 to C20 alkyl or alkenyl groups.
- X- is as defined above.
- the iodine value of the quaternary ammonium fabric conditioning material is preferably from 0 to 80, more preferably from 0 to 60, and most preferably from 0 to 45. The iodine value may be chosen as appropriate.
- Essentially saturated material having an iodine value of from 0 to 5, preferably from 0 to 1 may be used in the compositions described herein. Such materials are 15 known as “hardened” quaternary ammonium compounds. A further preferred range of iodine values is from 20 to 60, preferably 25 to 50, more preferably from 30 to 45. A material of this type is a "soft" triethanolamine quaternary ammonium compound, preferably triethanolamine di-alkylester methylsulfate. Such ester-linked 20 triethanolamine quaternary ammonium compounds comprise unsaturated fatty chains.
- the iodine value represents the mean iodine value of the parent fatty acyl compounds or fatty acids of all the quaternary ammonium materials present.
- the iodine value 25 represents the mean iodine value of the parent acyl compounds of fatty acids of all of the quaternary ammonium materials present.
- the fabric softening active comprises a mixture of cationic quaternary ammonium compound having more than one long carbon chain in combination with a secondary surfactant selected from a single chain cationic surfactant and/or a non-ionic surfactant.
- the cationic quaternary ammonium compound having more than one long 10 carbon chain and secondary surfactant are present in a ratio of 1:10 to 10:1, more preferably 1:5 to 5:1.
- the combination of the cationic quaternary ammonium compound having more than one long carbon chain in combination with a secondary surfactant selected from a single chain cationic surfactant and/or a non-ionic surfactant provide a solid composition which can be diluted with water to form a stable liquid fabric softener and provides superior softening.
- 15 Cationic quaternary ammonium compound having more than one long carbon chain are as described above.
- Suitable single chain cationic surfactant preferably have the general formula: 20 (R 1 ) 3 – N + - R 2 X- Wherein each R 1 independently comprises 1 to 6 carbon atoms, selected from alky, alkenyl, aryl or combinations thereof. Each R 1 may independently comprise hydroxy groups. Preferably at least two of the R 1 groups correspond to a methyl group. 25 Wherein R 2 comprises at least 10 carbon atoms. The carbon atoms may be in the form of an alky, alkenyl, aryl or combinations thereof.
- the single chain cationic surfactant comprises at least 12 carbon atoms, preferably at least 14 and most preferably at least 16. R 2 may further comprise additional functional groups such as ester groups or hydroxy groups.
- compositions described herein comprise more than 5 wt. % fabric softening active, more preferably more than 10 wt. % fabric softening active, most preferably more than 20 wt.
- the fabric conditioners of the described herein comprise less than 80 wt. % fabric softening active, more preferably 5 less than 70 wt. % fabric softening active, most preferably less than 65 wt. % fabric softening active by weight of the composition.
- the fabric conditioners comprise 5 to 80 wt. % fabric softening active, preferably 10 to 70 wt.% fabric softening active and more preferably 20 to 65 wt. % fabric softening active by weight of the composition.
- the solid fabric conditioning composition comprises fatty acid amide having a fatty acid chain length of 12 or more carbons.
- the fatty acid amide has a fatty acid carbon chain of less than 40. More preferably the fatty acid chain is 14 to 30 carbons long, even more preferably 16 to 26. 15
- the fatty acid chain may be fully saturated, mono or poly unsaturated.
- the fatty acid chain may be substituted and/or may be branched.
- the fatty acid chain is unsubstituted,
- the fatty acid chain is a straight chain (unbranched).
- the compositions comprise 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons by weight of the composition. Preferably 0.5 to 2.8 wt.
- Water soluble carrier examples include: starch, xanthan gum, carboxymethyl cellulose.
- the water-soluble carrier is selected from polysaccharides, more preferably cellulose derivatives. Most preferably cellulose ether derivatives. Typically, cellulose ether derivatives are30 obtained by substituting one or more hydrogen atoms of hydroxyl groups in the anhydro- glucose units of cellulose with alkyl or substituted alkyl groups. Degree of substitution (DS) is one of the factors, that define the properties of cellulose ether derivatives, particularly, solubility in water.
- cellulose ether derivatives with degree of 35 substitution values between 1.2 to 2.4 are soluble in cold water.
- examples of cellulose ether P0000150 CPL 8 derivatives suitable for the compositions described herein includes methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), carboxymethyl cellulose (CMC) and sodium carboxymethyl cellulose (SCMC).
- MC methyl cellulose
- HEC hydroxyethyl cellulose
- HPC hydroxypropyl cellulose
- HPMC hydroxypropyl methyl cellulose
- SCMC sodium carboxymethyl cellulose
- the cellulose ether derivative is selected form hydroxypropyl methyl cellulose, methyl 5 cellulose, hydroxypropyl cellulose, and combinations thereof.
- Most preferred cellulose ether derivative is hydroxypropyl methyl cellulose.
- the compositions described herein 5 to 70 wt.%, more preferably 7.5 to 50 wt.% and most preferably 10 to 40 wt.% water-soluble carrier materials, by weight of the composition.
- the water-soluble carrier preferably has a solubility at least 0.5% by weight in distilled water at 25 °C.
- a solubility at least 1.0 % by weight, more preferably at least 2 % by weight, and most preferably at least 3% by weight in distilled water at 25 °C.
- a solubility of at least 5 mg/ml of distilled water at 25°C preferably at least 10 mg/ml of distilled water at 25°C, more preferably at least 20 mg/ml of distilled water at 25°C, most preferably 30 mg/ml of 15 distilled water at 25°C.
- Swellable disintegrant The compositions described herein preferably comprise a swellable disintegrant. Swellable disintegrant herein refers to the components which swell in contact with water. The swellable 20 disintegrant acts synergistically with the fatty acid amide to improve dissolution time and stickiness.
- the swellable disintegrant has a Water Absorption Ratio (WAR) of greater than 1, more preferably greater than 1.5.
- WAR Water Absorption Ratio
- WAR Water Absorption Ratio
- the process described in ASTM D570 is suitable for measuring water absorption ratios.
- the water absorption may be measured by: - Procuring a dry sample of the material to be tested P0000150 CPL 9 - Weighing the sample to be tested then, placing in a container of boiling distilled water for 120 minutes, ensuing it is entirely immersed - Removing the specimen and removing excess water with filter paper.
- the swellable disintegrant is preferably selected from sodium croscarmellose, sodium starch glycollate, crospovidone, C-TAG (co grinded treated agar) and C-TGG (co grinded treated guar gum), mucilage (for example from Isapgula or Fenugreek seed), Chitin, cross-linked cellulose 10 (for example microcrystalline cellulose), sodium starch glycolate and mixtures thereof. More preferably the swellable disintegrant is selected from crosslinked cellulose (preferably microcrystalline cellulose), sodium starch glycolate and mixtures thereof.
- the water swellable disintegrant is selected from crosslinked cellulose, and most preferably the water swellable disintegrant is selected from microcrystalline cellulose. 15
- the composition may comprise from 1 to 30% by weight swellable disintegrant, more preferably from 2 to 20% by weight and most preferably from 3 to 15% by weight swellable disintegrant.
- the composition described herein may further comprise a non-swellable disintegrant.
- Non- swellable disintegrant herein refer to those which have water absorption ratio (WAR) less than 1.
- WAR water absorption ratio
- the non-swellable disintegrate is selected from polyvinyl pyrrolidone, calcium 20 silicate, starch, magnesium stearate and mixtures thereof.
- Carbonaceous material The compositions described herein preferably comprise carbonaceous materials.
- the carbonaceous material leads to improved strength of the solid composition.
- Carbonaceous 25 materials refer to materials having a 2D carbon lattice nanostructure.
- the 2D lattice may be flat for example graphene or may be shaped into a 3D shape such as carbon nanotubes.
- the carbonaceous material may be part of a larger structure, such as a composite material e.g. clay-carbonaceous material composite.
- the carbonaceous materials comprise a material selected from carbon nanotubes, graphene, activated carbon and combinations 30 thereof. More preferably the carbonaceous materials comprise preferably graphene and/or derivatives thereof and most preferably graphene oxide.
- Graphene is an allotrope, formed by a single layer carbon atoms arranged in hexagonal lattice structure. Graphene can be obtained in two manners. The first is by peeling layers from graphite until you achieve a graphene monolayer. The second is known as Chemical Vapor Deposition (CVD) and where large-scale uniformity can be obtained and controlled. 5
- the graphene derivative suitable for the compositions described herein is graphene oxide.
- Graphene oxide can be manufactured through Hummer’s method. Graphene oxide is also commercially available and may be procured from suppliers such as Platonic Nanotech.
- compositions described herein preferably comprise 0.001 to 2 wt.% carbonaceous materials, more preferably 0.0025 to 1 wt.% carbonaceous materials, even more preferably 0.005 to 0.5 wt.% carbonaceous materials and most preferably 0.01 to 0.25 wt.% carbonaceous materials. 15 Other ingredients
- the compositions described herein may comprise additional ingredients common in the field of solid fabric conditioners, for example perfumes, perfume microcapsules, dyes, antifoams, insect repellents, shading or hueing dyes, preservatives (e.g.
- compositions described herein may contain pearlisers and/or opacifiers.
- the compositions comprise perfume, more preferably comprises 0.1 to 25 wt.% 25 perfume, even more preferably 1 to 20 wt. % perfume and most preferably 2 to 15 wt.% perfume.
- Water The solid fabric conditioner described herein are preferably ‘free from water’ when 30 manufactured, however they may absorb moisture on storage.
- the composition comprises 0 to 20 wt.% weight, more preferably 0 to 15 wt.% water, most preferably 0 to 12 wt.% water.
- Water content may be measured by thermogravimetry, like moisture balance. 35 P0000150 CPL 11 Process of making and use of the compositions
- the solid fabric conditioner composition described herein may be in any suitable form.
- a single dose of the composition may be a single article (e.g. a tablet or sheet), a part of a single article (i.e. a part of a sheet separated by tearing a section off a larger sheet), or may consist of 5 multiple articles, (e.g. multiple particles of the composition).
- the solid composition is in the form of articles having a minimum linear dimension in any direction of more than 1 mm.
- the solid fabric conditioner composition does not include powders.
- the solid composition is in a form suitable for use as a single article for example a tablet or sheet. These may be referred to as a ‘unit dose’. 10
- the solid fabric conditioner may be made by any suitable process.
- a preferred method comprises the steps of; a) Preparing a premix of a water-soluble carrier and water; 15 b) Adding fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients to the premix; c) Casting the mixture on a surface or in a mold; and d) Removing the water, preferably by evaporation.
- Step a) preferably comprises mixing and/or heating.
- Step b) preferably comprises mixing fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients with water prior to addition to the pre-mix.
- step c) if casting is used, preferably the thickness is controlled using an applicator.
- the mixture is preferably cast onto a Polytetrafluoroethylene (PTFE) surface, for example PTFE sheets, PTFE coated foils or PTFE coated fabrics.
- Step d) preferably takes place at a temperature above room temperature (above 25°C), preferably at less than 100 °C, and more preferably less than 95 °C. Most preferably water is removed at a temperature of 70 to 90 °C.
- Preferably water is removed to reach a composition water content of 0 to 20 wt.%, more preferably a water content of 0 to 15 wt.%, more preferably 0 to 10 wt.%, even more preferably 0 to 5 wt. % and most preferably 0 to 2 wt.%.
- P0000150 CPL 12 More specifically a homogenized premix of water and water-soluble carrier is prepared with mixing. Subsequently, fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients are mixed with water under high shear before being added to the premix.
- Keval Exports The formulations where prepared by dispersing the hydroxypropyl methyl cellulose in hot water 15 to make a 10% polymer solution. Separately the quaternary ammonium compound and perfume were mixed in the remaining water under high shear to make an emulsion. The remaining ingredients were added to the emulsion and mixed. The final mix was added to the polymer solution at room temperature and mixed well at high shear until a stable foam was formed. The foam was cast on a smooth, hard surface and dried at 80-90 o C for 2 hours. The dried sheet was 20 detached from the substrate on cooling. P0000150 CPL 13 Dissolution time was measured the following method.300 ml of water was placed in a 500ml beaker at room temperature.
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Abstract
A solid fabric conditioning composition comprising: fabric softening active; 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons; and water soluble carrier.
Description
P0000150 CPL 1 LAUNDRY COMPOSITION Field of the Invention 5 The present invention relates to solid fabric conditioning compositions. Background of the Invention Solid fabric conditioners provide consumers with an easy-to-use concentrated fabric conditioner 10 composition. These compositions have various benefits including that they can contain high levels of active ingredient and have very low water content, leading to easier storage and transportation. Solid fabric conditioners come in different shapes and sizes, for example tablets, sheets, 15 shaped articles, etc. the ‘stickiness’ or lack of ‘stickiness’ is an important physical characteristic of a solid fabric conditioner. A sticky product may stick to other articles, is not easy for a consumer handle and could potentially leave residues on the consumers hands. Summary of the Invention 20 It has been found that the addition of fatty acid amide having a fatty acid chain length of 12 or more carbons, to a solid fabric conditioner improves the stickiness of the solid composition. Accordingly, is a first aspect of the present invention is provided a solid fabric conditioning 25 composition comprising: a Ester linked quaternary ammonium compound fabric softening active; b 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons; and 30 c 5 to 70 wt.% Water soluble carrier selected form polysaccharides. The invention further relates to a method of preparing a solid fabric conditioning composition comprising the steps of; 35 a Preparing a premix of the water-soluble carrier and water;
P0000150 CPL 2 b Adding the fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients to the premix; c Casting the mixture on a surface or in a mold; and d Removing the water, preferably by evaporation. 5 Detailed Description of the Invention These and other aspects, features and advantages will become apparent to those of ordinary skill in the art from a reading of the following detailed description and the appended claims. For 10 the avoidance of doubt, any feature of one aspect of the present invention may be utilised in any other aspect of the invention. The word “comprising” is intended to mean “including” but not necessarily “consisting of” or “composed of.” In other words, the listed steps or options need not be exhaustive. It is noted that the examples given in the description below are intended to clarify the invention and are not intended to limit the invention to those examples per se. 15 Similarly, all percentages are weight/weight percentages unless otherwise indicated. Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word “about”. Numerical ranges expressed in the format "from x to y" are understood to include x and y. When for a specific 20 feature multiple preferred ranges are described in the format "from x to y", it is understood that all ranges combining the different endpoints are also contemplated. All ingredient inclusion levels are wt.% of the final solid fabric conditioner product. 25 Fabric softening active The compositions described herein comprise ester-linked quaternary ammonium fabric softening active. The quaternary ammonium compound (QAC) preferably comprises at least one chain derived 30 from fatty acids, more preferably at least two chains derived from a fatty acid. Generally fatty acids are defined as aliphatic monocarboxylic acids having a chain of 4 to 28 carbons. Fatty acids may be derived from various sources such as tallow or plant sources. Preferably the fatty acid chains are derived from plants. Preferably the fatty acid chains of the QAC comprise from 10 to 50 wt. % of saturated C18 chains and from 5 to 40 wt. % of monounsaturated C18 chains 35 by weight of total fatty acid chains. In a further preferred embodiment, the fatty acid chains of
P0000150 CPL 3 the QAC comprise from 20 to 40 wt. %, preferably from 25 to 35 wt. % of saturated C18 chains and from 10 to 35 wt. %, preferably from 15 to 30 wt. % of monounsaturated C18 chains, by weight of total fatty acid chains. 5 The quaternary ammonium fabric softening actives for use in compositions described herein are so called "ester quats" or ester-linked quaternary ammonium compounds. Particularly preferred materials are the ester-linked triethanolamine (TEA) quaternary ammonium compounds comprising a mixture of mono-, di- and tri-ester linked components. 10 Typically, TEA-based fabric softening compounds comprise a mixture of mono, di- and tri ester forms of the compound where the di-ester linked component comprises no more than 70 wt.% of the fabric softening compound, preferably no more than 60 wt.% e.g., no more than 55%, or even no more that 45% of the fabric softening compound and at least 10 wt.% of the monoester linked component. 15 A first group of quaternary ammonium compounds (QACs) suitable for use in the compositions are represented by formula (I):
wherein each R is independently selected from a C5 to C35 alkyl or alkenyl group; R1 20 represents a C1 to C4 alkyl, C2 to C4 alkenyl or a C1 to C4 hydroxyalkyl group; T may be either O-CO. (i.e. an ester group bound to R via its carbon atom), or may alternatively be CO-O (i.e. an ester group bound to R via its oxygen atom); n is a number selected from 1 to 4; m is a number selected from 1, 2, or 3; and X- is an anionic counter-ion, such as a halide or alkyl sulphate, e.g. chloride or methylsulfate. Di-esters variants of formula I (i.e., m = 2) are preferred 25 and typically have mono- and tri-ester analogues associated with them. Such materials are particularly suitable for use in the compositions described herein. A second group of QACs suitable for use in the compositions described herein is represented by formula (II):
P0000150 CPL 4
wherein each R1 group is independently selected from C1 to C4 alkyl, hydroxyalkyl or C2 to C4 alkenyl groups; and wherein each R2 group is independently selected from C8 to C28 alkyl or alkenyl groups; and wherein n, T, and X- are as defined above. 5 Preferred materials of this second group include 1,2 bis[tallowoyloxy]-3- trimethylammonium propane chloride, 1,2 bis[hardened tallowoyloxy]-3- trimethylammonium propane chloride, 1,2- bis[oleoyloxy]-3-trimethylammonium propane chloride, and 1,2 bis[stearoyloxy]-3- trimethylammonium propane chloride. Such materials are described in US 4, 137,180 (Lever10 Brothers). Preferably, these materials also comprise an amount of the corresponding mono- ester. A third group of QACs suitable for use in the composition are represented by formula (III): 15 wherein each R1 group is independently selected from C1 to C4 alkyl, or C2 to C4 alkenyl groups; and wherein each R2 group is independently selected from C8 to C28 alkyl or alkenyl groups; and n, T, and X- are as defined above. Preferred materials of this third group include 20 bis(2-tallowoyloxyethyl)dimethyl ammonium chloride, partially hardened and hardened versions thereof.
P0000150 CPL 5 A particular example of the fourth group of QACs is represented the by the formula (IV):
5 A fifth group of QACs suitable for use in the composition are represented by formula (V)
R1 and R2 are independently selected from C10 to C22 alkyl or alkenyl groups, preferably C14 to C20 alkyl or alkenyl groups. X- is as defined above. 10 The iodine value of the quaternary ammonium fabric conditioning material is preferably from 0 to 80, more preferably from 0 to 60, and most preferably from 0 to 45. The iodine value may be chosen as appropriate. Essentially saturated material having an iodine value of from 0 to 5, preferably from 0 to 1 may be used in the compositions described herein. Such materials are 15 known as "hardened" quaternary ammonium compounds. A further preferred range of iodine values is from 20 to 60, preferably 25 to 50, more preferably from 30 to 45. A material of this type is a "soft" triethanolamine quaternary ammonium compound, preferably triethanolamine di-alkylester methylsulfate. Such ester-linked 20 triethanolamine quaternary ammonium compounds comprise unsaturated fatty chains. If there is a mixture of quaternary ammonium materials present in the composition, the iodine value, referred to above, represents the mean iodine value of the parent fatty acyl compounds or fatty acids of all the quaternary ammonium materials present. Likewise, if there are any saturated quaternary ammonium materials present in the composition, the iodine value 25 represents the mean iodine value of the parent acyl compounds of fatty acids of all of the quaternary ammonium materials present.
P0000150 CPL 6 Iodine value as used in the context of the compositions described herein refers to, the fatty acid used to produce the QAC, the measurement of the degree of unsaturation present in a material by a method of nmr spectroscopy as described in Anal. Chem., 34, 1136 (1962) Johnson and Shoolery. 5 In a preferred embodiment the fabric softening active comprises a mixture of cationic quaternary ammonium compound having more than one long carbon chain in combination with a secondary surfactant selected from a single chain cationic surfactant and/or a non-ionic surfactant. Preferably the cationic quaternary ammonium compound having more than one long 10 carbon chain and secondary surfactant are present in a ratio of 1:10 to 10:1, more preferably 1:5 to 5:1. The combination of the cationic quaternary ammonium compound having more than one long carbon chain in combination with a secondary surfactant selected from a single chain cationic surfactant and/or a non-ionic surfactant provide a solid composition which can be diluted with water to form a stable liquid fabric softener and provides superior softening. 15 Cationic quaternary ammonium compound having more than one long carbon chain are as described above. Suitable single chain cationic surfactant preferably have the general formula: 20 (R1)3 – N+ - R2 X- Wherein each R1 independently comprises 1 to 6 carbon atoms, selected from alky, alkenyl, aryl or combinations thereof. Each R1 may independently comprise hydroxy groups. Preferably at least two of the R1 groups correspond to a methyl group. 25 Wherein R2 comprises at least 10 carbon atoms. The carbon atoms may be in the form of an alky, alkenyl, aryl or combinations thereof. Preferably the single chain cationic surfactant comprises at least 12 carbon atoms, preferably at least 14 and most preferably at least 16. R2 may further comprise additional functional groups such as ester groups or hydroxy groups. 30 X- is an anionic counter-ion, such as a halide or alkyl sulphate, e.g. chloride or methylsulfate Preferred cationic surfactants include Hydroxyethyl laurdimonium chloride, cetyltrimethylammonium chloride (CTAC), Behentrimonium chloride (BTAC), a Alkyl dimethyl hydroxyethyl ammonium chloride such as Praepagen HY ex Clariant GmbH.
P0000150 CPL 7 Preferably the compositions described herein comprise more than 5 wt. % fabric softening active, more preferably more than 10 wt. % fabric softening active, most preferably more than 20 wt. % fabric softening active by weight of the composition. Preferably the fabric conditioners of the described herein comprise less than 80 wt. % fabric softening active, more preferably 5 less than 70 wt. % fabric softening active, most preferably less than 65 wt. % fabric softening active by weight of the composition. Suitably the fabric conditioners comprise 5 to 80 wt. % fabric softening active, preferably 10 to 70 wt.% fabric softening active and more preferably 20 to 65 wt. % fabric softening active by weight of the composition. 10 Fatty acid amide The solid fabric conditioning composition comprises fatty acid amide having a fatty acid chain length of 12 or more carbons. Preferably the fatty acid amide has a fatty acid carbon chain of less than 40. More preferably the fatty acid chain is 14 to 30 carbons long, even more preferably 16 to 26. 15 The fatty acid chain may be fully saturated, mono or poly unsaturated. The fatty acid chain may be substituted and/or may be branched. Preferably the fatty acid chain is unsubstituted, Preferably the fatty acid chain is a straight chain (unbranched). 20 The compositions comprise 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons by weight of the composition. Preferably 0.5 to 2.8 wt. %, even more preferably 1 to 2.5 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons by weight of the composition. 25 Water soluble carrier Examples of suitable carrier materials include: starch, xanthan gum, carboxymethyl cellulose. The water-soluble carrier is selected from polysaccharides, more preferably cellulose derivatives. Most preferably cellulose ether derivatives. Typically, cellulose ether derivatives are30 obtained by substituting one or more hydrogen atoms of hydroxyl groups in the anhydro- glucose units of cellulose with alkyl or substituted alkyl groups. Degree of substitution (DS) is one of the factors, that define the properties of cellulose ether derivatives, particularly, solubility in water. It is defined as the number of substituted hydroxyl groups for every glucose molecule ranging between zero and three. For example, cellulose ether derivatives with degree of 35 substitution values between 1.2 to 2.4 are soluble in cold water. Examples of cellulose ether
P0000150 CPL 8 derivatives suitable for the compositions described herein includes methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), carboxymethyl cellulose (CMC) and sodium carboxymethyl cellulose (SCMC). Preferably the cellulose ether derivative is selected form hydroxypropyl methyl cellulose, methyl 5 cellulose, hydroxypropyl cellulose, and combinations thereof. Most preferred cellulose ether derivative is hydroxypropyl methyl cellulose. The compositions described herein 5 to 70 wt.%, more preferably 7.5 to 50 wt.% and most preferably 10 to 40 wt.% water-soluble carrier materials, by weight of the composition. 10 The water-soluble carrier preferably has a solubility at least 0.5% by weight in distilled water at 25 °C. Preferably a solubility at least 1.0 % by weight, more preferably at least 2 % by weight, and most preferably at least 3% by weight in distilled water at 25 °C. In other words, a solubility of at least 5 mg/ml of distilled water at 25°C, preferably at least 10 mg/ml of distilled water at 25°C, more preferably at least 20 mg/ml of distilled water at 25°C, most preferably 30 mg/ml of 15 distilled water at 25°C. Swellable disintegrant The compositions described herein preferably comprise a swellable disintegrant. Swellable disintegrant herein refers to the components which swell in contact with water. The swellable 20 disintegrant acts synergistically with the fatty acid amide to improve dissolution time and stickiness. Preferably the swellable disintegrant has a Water Absorption Ratio (WAR) of greater than 1, more preferably greater than 1.5. Water Absorption Ratio (WAR) is a measure as to how much 25 water a material absorbs under controlled and defined conditions. Water absorption is expressed as the increase in weight percent of a specimen: Increase in weight, % = [(wet weight – conditioned weight) / conditioned weight] x 100 30 The process described in ASTM D570 is suitable for measuring water absorption ratios. Specifically the water absorption may be measured by: - Procuring a dry sample of the material to be tested
P0000150 CPL 9 - Weighing the sample to be tested then, placing in a container of boiling distilled water for 120 minutes, ensuing it is entirely immersed - Removing the specimen and removing excess water with filter paper. - Weighing the sample immediately (wet weight) 5 - Drying the sample at 105°C for 20 minutes - Reweighing the sample (conditioned weight) The swellable disintegrant is preferably selected from sodium croscarmellose, sodium starch glycollate, crospovidone, C-TAG (co grinded treated agar) and C-TGG (co grinded treated guar gum), mucilage (for example from Isapgula or Fenugreek seed), Chitin, cross-linked cellulose 10 (for example microcrystalline cellulose), sodium starch glycolate and mixtures thereof. More preferably the swellable disintegrant is selected from crosslinked cellulose (preferably microcrystalline cellulose), sodium starch glycolate and mixtures thereof. Even more preferrable the water swellable disintegrant is selected from crosslinked cellulose, and most preferably the water swellable disintegrant is selected from microcrystalline cellulose. 15 The composition may comprise from 1 to 30% by weight swellable disintegrant, more preferably from 2 to 20% by weight and most preferably from 3 to 15% by weight swellable disintegrant. The composition described herein may further comprise a non-swellable disintegrant. Non- swellable disintegrant herein refer to those which have water absorption ratio (WAR) less than 1. Preferably the non-swellable disintegrate is selected from polyvinyl pyrrolidone, calcium 20 silicate, starch, magnesium stearate and mixtures thereof. Carbonaceous material The compositions described herein preferably comprise carbonaceous materials. The carbonaceous material leads to improved strength of the solid composition. Carbonaceous 25 materials refer to materials having a 2D carbon lattice nanostructure. The 2D lattice may be flat for example graphene or may be shaped into a 3D shape such as carbon nanotubes. The carbonaceous material may be part of a larger structure, such as a composite material e.g. clay-carbonaceous material composite. Preferably the carbonaceous materials comprise a material selected from carbon nanotubes, graphene, activated carbon and combinations 30 thereof. More preferably the carbonaceous materials comprise preferably graphene and/or derivatives thereof and most preferably graphene oxide.
P0000150 CPL 10 Graphene is an allotrope, formed by a single layer carbon atoms arranged in hexagonal lattice structure. Graphene can be obtained in two manners. The first is by peeling layers from graphite until you achieve a graphene monolayer. The second is known as Chemical Vapor Deposition (CVD) and where large-scale uniformity can be obtained and controlled. 5 Preferably the graphene derivative suitable for the compositions described herein is graphene oxide. Graphene oxide can be manufactured through Hummer’s method. Graphene oxide is also commercially available and may be procured from suppliers such as Platonic Nanotech. 10 The compositions described herein preferably comprise 0.001 to 2 wt.% carbonaceous materials, more preferably 0.0025 to 1 wt.% carbonaceous materials, even more preferably 0.005 to 0.5 wt.% carbonaceous materials and most preferably 0.01 to 0.25 wt.% carbonaceous materials. 15 Other ingredients The compositions described herein may comprise additional ingredients common in the field of solid fabric conditioners, for example perfumes, perfume microcapsules, dyes, antifoams, insect repellents, shading or hueing dyes, preservatives (e.g. bactericides), pH buffering agents, perfume carriers, hydrotropes, anti-redeposition agents, soil-release agents, polyelectrolytes, 20 anti-shrinking agents, anti-wrinkle agents, anti-oxidants, colorants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, sequestrants and ironing aids. The compositions described herein may contain pearlisers and/or opacifiers. Preferably the compositions comprise perfume, more preferably comprises 0.1 to 25 wt.% 25 perfume, even more preferably 1 to 20 wt. % perfume and most preferably 2 to 15 wt.% perfume. Water The solid fabric conditioner described herein are preferably ‘free from water’ when 30 manufactured, however they may absorb moisture on storage. Therefore, preferably the composition comprises 0 to 20 wt.% weight, more preferably 0 to 15 wt.% water, most preferably 0 to 12 wt.% water. Water content may be measured by thermogravimetry, like moisture balance. 35
P0000150 CPL 11 Process of making and use of the compositions The solid fabric conditioner composition described herein may be in any suitable form. A single dose of the composition may be a single article (e.g. a tablet or sheet), a part of a single article (i.e. a part of a sheet separated by tearing a section off a larger sheet), or may consist of 5 multiple articles, (e.g. multiple particles of the composition). Preferably the solid composition is in the form of articles having a minimum linear dimension in any direction of more than 1 mm. The solid fabric conditioner composition does not include powders. Preferably the solid composition is in a form suitable for use as a single article for example a tablet or sheet. These may be referred to as a ‘unit dose’. 10 The solid fabric conditioner may be made by any suitable process. A preferred method comprises the steps of; a) Preparing a premix of a water-soluble carrier and water; 15 b) Adding fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients to the premix; c) Casting the mixture on a surface or in a mold; and d) Removing the water, preferably by evaporation. 20 Step a) preferably comprises mixing and/or heating. Step b) preferably comprises mixing fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients with water prior to addition to the pre-mix. 25 In step c) if casting is used, preferably the thickness is controlled using an applicator. The mixture is preferably cast onto a Polytetrafluoroethylene (PTFE) surface, for example PTFE sheets, PTFE coated foils or PTFE coated fabrics. 30 Step d) preferably takes place at a temperature above room temperature (above 25°C), preferably at less than 100 °C, and more preferably less than 95 °C. Most preferably water is removed at a temperature of 70 to 90 °C. Preferably water is removed to reach a composition water content of 0 to 20 wt.%, more preferably a water content of 0 to 15 wt.%, more preferably 0 to 10 wt.%, even more preferably 0 to 5 wt. % and most preferably 0 to 2 wt.%.
P0000150 CPL 12 More specifically a homogenized premix of water and water-soluble carrier is prepared with mixing. Subsequently, fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients are mixed with water under high shear before being added to the premix. Thereon the premix is casted on a surface as a 5 sheet or film with certain thickness. Examples Table 1: Example formulations wt.% active Material A^ ^B ^1 2 Casting Solid Casting Solid Casting Solid Casting Solid solution sheet solution sheet solution sheet solution sheet Quaternary ammonium 14.5 58.0 14.5 51.8 14.5 56.9 14.5 52.7 compound1 Hydroxy propyl methyl 5.5 22 5.5 19.6 5.5 21.6 5.5 20 cellulose Glycerol 2.5 10 2.5 8.9 2.5 9.8 2.5 9.1 Fragrance 2.5 10 2.5 8.9 2.5 9.8 2.5 9.1 Water 75 0 72 0 74.5 0 72.5 0 Micro crystalline 0 0 2 7.1 0 0 2 7.3 cellulose2 Erucamide 0 0 1 3.6 0.5 2 0.5 1.8 10 Quaternary ammonium compound1 – TEA palm quaternary ammonium compound Micro-crystalline cellulose2 - KEVICEL PH 102 ex. Keval Exports The formulations where prepared by dispersing the hydroxypropyl methyl cellulose in hot water 15 to make a 10% polymer solution. Separately the quaternary ammonium compound and perfume were mixed in the remaining water under high shear to make an emulsion. The remaining ingredients were added to the emulsion and mixed. The final mix was added to the polymer solution at room temperature and mixed well at high shear until a stable foam was formed. The foam was cast on a smooth, hard surface and dried at 80-90oC for 2 hours. The dried sheet was 20 detached from the substrate on cooling.
P0000150 CPL 13 Dissolution time was measured the following method.300 ml of water was placed in a 500ml beaker at room temperature. The beaker was placed over a magnetic stirrer with 1.5 inch magnetic bead in it. Stirring was set at 300 RPM.1 inch X 1 inch piece of sheet (as prepared above) were added to the stirring water & the timer started. The dissolution time is the at which 5 no residue of the sheet remains visible. The dynamic coefficient of friction of the sheets was measured using a Coefficient of Friction (COF) Tester ex. Packtest. 10 Table 2: Results Formulation A B 1 2 Dissolution >5 min >5 min >5 min <3 min time Coefficient of Sticky surface Sticky surface 0.45 0.35 friction 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons improves 15 the coefficient of friction.
Claims
P0000150 CPL 14 Claims 1. A solid fabric conditioning composition comprising: a Ester linked quaternary ammonium compound fabric softening active; b 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons; and c 5 to 70 wt.% Water soluble carrier selected from polysaccharides. 2. A solid fabric conditioning composition according to any preceding claim, wherein the fabric softening active comprises a mixture of cationic quaternary ammonium compound having more than one long carbon chain in combination with a secondary surfactant selected from a single chain cationic surfactant and/or a non-ionic surfactant 3. A solid fabric conditioning composition according to any preceding claim, wherein the composition comprises 5 to 80 wt. % fabric softening active. 4. A solid fabric conditioning composition according to any preceding claim, wherein the water soluble carrier is selected from: cellulose derivatives and combinations thereof. 5. A solid fabric conditioning composition according to any preceding claim, wherein the composition further comprises a carbonaceous material. 6. A solid fabric conditioning composition according to any preceding claim, wherein the composition further comprises perfume. 7. A solid fabric conditioning composition according to any preceding claim, wherein the composition further comprises swellable disintegrant. 8. A solid fabric conditioning composition according to preceding claim, wherein the swellable disintegrant is selected from disintegrants having a Water Absorption Ratio (WAR) of greater than 1. 9. A solid fabric conditioning composition according to any preceding claim, wherein the composition comprises 1 to 30 wt.% swellable disintegrant.
P0000150 CPL 15 10. A solid fabric conditioning composition according to any preceding claim, wherein the composition comprises swellable disintegrant comprising microcrystalline cellulose. 11. A method of preparing a solid fabric conditioning composition according to any preceding claim, comprising the steps of; a Preparing a premix of the water-soluble carrier and water; b Adding the fabric softening active, 0.1 to 3 wt.% fatty acid amide having a fatty acid chain length of 12 or more carbons and any remaining ingredients to the premix; c Casting the mixture on a surface or in a mold; and d Removing the water, preferably by evaporation.
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EP22213631 | 2022-12-14 | ||
EP22213631.9 | 2022-12-14 |
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WO2024126308A1 true WO2024126308A1 (en) | 2024-06-20 |
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PCT/EP2023/084985 WO2024126308A1 (en) | 2022-12-14 | 2023-12-08 | Solid laundry composition |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137180A (en) | 1976-07-02 | 1979-01-30 | Lever Brothers Company | Fabric treatment materials |
US4938879A (en) * | 1989-04-04 | 1990-07-03 | Creative Products Resource Associates, Ltd. | Stearate-based dryer-added fabric softener sheet |
EP0242918B1 (en) * | 1986-04-23 | 1991-09-11 | The Procter & Gamble Company | Softening and bleaching detergent compositions containing amide softening agent |
WO2008040151A1 (en) * | 2006-09-01 | 2008-04-10 | Tao Wang | Synthetic detergent and its preparation method |
CN110184806A (en) * | 2019-06-23 | 2019-08-30 | 无锡华鑫检测技术有限公司 | A kind of graphene-based wool softening agent and preparation method thereof |
WO2021222079A1 (en) * | 2020-04-29 | 2021-11-04 | Stepan Company | Solid compositions containing amine, protonated amine or quaternary ammonium compounds |
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2023
- 2023-12-08 WO PCT/EP2023/084985 patent/WO2024126308A1/en unknown
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US4137180A (en) | 1976-07-02 | 1979-01-30 | Lever Brothers Company | Fabric treatment materials |
EP0242918B1 (en) * | 1986-04-23 | 1991-09-11 | The Procter & Gamble Company | Softening and bleaching detergent compositions containing amide softening agent |
US4938879A (en) * | 1989-04-04 | 1990-07-03 | Creative Products Resource Associates, Ltd. | Stearate-based dryer-added fabric softener sheet |
WO2008040151A1 (en) * | 2006-09-01 | 2008-04-10 | Tao Wang | Synthetic detergent and its preparation method |
CN110184806A (en) * | 2019-06-23 | 2019-08-30 | 无锡华鑫检测技术有限公司 | A kind of graphene-based wool softening agent and preparation method thereof |
WO2021222079A1 (en) * | 2020-04-29 | 2021-11-04 | Stepan Company | Solid compositions containing amine, protonated amine or quaternary ammonium compounds |
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Title |
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ANONYMOUS: "Slip Additive - an overview | ScienceDirect Topics", 20 February 2021 (2021-02-20), XP093049463, Retrieved from the Internet <URL:https://web.archive.org/web/20210220222622/https://www.sciencedirect.com/topics/engineering/slip-additive> [retrieved on 20230525] * |
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