GB2197666A - Method of preparing fabric softening compositions - Google Patents
Method of preparing fabric softening compositions Download PDFInfo
- Publication number
- GB2197666A GB2197666A GB08726882A GB8726882A GB2197666A GB 2197666 A GB2197666 A GB 2197666A GB 08726882 A GB08726882 A GB 08726882A GB 8726882 A GB8726882 A GB 8726882A GB 2197666 A GB2197666 A GB 2197666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fatty acid
- water
- acid monoalkanolamide
- monoalkanolamide
- fabric softener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- 239000000203 mixture Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004744 fabric Substances 0.000 title claims abstract description 12
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 40
- 239000000194 fatty acid Substances 0.000 claims abstract description 40
- 229930195729 fatty acid Natural products 0.000 claims abstract description 40
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004665 cationic fabric softener Substances 0.000 claims abstract description 16
- 239000006185 dispersion Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 230000003750 conditioning effect Effects 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 6
- 239000003760 tallow Substances 0.000 abstract description 9
- 238000003860 storage Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 9
- 239000002304 perfume Substances 0.000 description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 7
- 239000004166 Lanolin Substances 0.000 description 7
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 description 7
- 229940039717 lanolin Drugs 0.000 description 7
- 235000019388 lanolin Nutrition 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- QLAJNZSPVITUCQ-UHFFFAOYSA-N 1,3,2-dioxathietane 2,2-dioxide Chemical compound O=S1(=O)OCO1 QLAJNZSPVITUCQ-UHFFFAOYSA-N 0.000 description 4
- 239000011149 active material Substances 0.000 description 4
- 239000002752 cationic softener Substances 0.000 description 4
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical class C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 4
- 244000060011 Cocos nucifera Species 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 125000003342 alkenyl group Chemical group 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 150000001450 anions Chemical group 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- PGZPBNJYTNQMAX-UHFFFAOYSA-N dimethylazanium;methyl sulfate Chemical compound C[NH2+]C.COS([O-])(=O)=O PGZPBNJYTNQMAX-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- ZPFAVCIQZKRBGF-UHFFFAOYSA-N 1,3,2-dioxathiolane 2,2-dioxide Chemical compound O=S1(=O)OCCO1 ZPFAVCIQZKRBGF-UHFFFAOYSA-N 0.000 description 1
- JLJNZJNPAYILPJ-XYJRJTJESA-M 1-[1-[(z)-octadec-9-enyl]-4,5-dihydroimidazol-1-ium-1-yl]tetradecan-1-ol;chloride Chemical compound [Cl-].CCCCCCCC\C=C/CCCCCCCC[N+]1(C(O)CCCCCCCCCCCCC)CCN=C1 JLJNZJNPAYILPJ-XYJRJTJESA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 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
- 239000003125 aqueous solvent Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 150000001767 cationic compounds Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical class C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- VKKVMDHHSINGTJ-UHFFFAOYSA-M di(docosyl)-dimethylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCCCCCC VKKVMDHHSINGTJ-UHFFFAOYSA-M 0.000 description 1
- OCTAKUVKMMLTHX-UHFFFAOYSA-M di(icosyl)-dimethylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCCCC OCTAKUVKMMLTHX-UHFFFAOYSA-M 0.000 description 1
- HPDYVEVTJANPRA-UHFFFAOYSA-M diethyl(dihexadecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](CC)(CC)CCCCCCCCCCCCCCCC HPDYVEVTJANPRA-UHFFFAOYSA-M 0.000 description 1
- ZCPCLAPUXMZUCD-UHFFFAOYSA-M dihexadecyl(dimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCC ZCPCLAPUXMZUCD-UHFFFAOYSA-M 0.000 description 1
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- -1 germicides Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000006179 pH buffering agent Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 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
- 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
- C11D3/0015—Softening compositions liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A process for preparing an aqueous liquid fabric softening composition, containing (A) a fatty acid monoalkanolamide, such as tallow monoethanolamide, and (B) a cationic fabric softener, comprises: (i) treating the fatty acid monoalkanolamide by contact with water; (ii) contacting the treated fatty acid monoalkanolamide with the cationic fabric softener and heating to give a molten mixture; (iii) adding the molten mixture to water and mixing to form a dispersion of the molten mixture in droplet form in the water. The processing temperature for products prepared according to this process is reduced. Futhermore, products prepared by this process have improved viscosity and storage stability.
Description
METHOD FOR PREPARING FABRIC CONDITIONING COMPOSITIONS
This invention relates to a process for preparing fabric conditioning compositions, in particular aqueous liquid fabric conditioning compositions containing a cationic fabric softener and a fatty acid alkanolamide.
Aqueous fabric conditioning compositions which contain a water-insoluble cationic fabric softener together with a fatty acid alkanolamide are disclosed in British Patent
GB 1 104 441 (Unilever case C.149).
One of the problems associated with the processing of such formulations is the high melting point of the fatty acid alkanolamide. We have now discovered that this problem can be overcome if the fatty acid alkanolamide is treated before it is contacted with the cationic material.
We have also surprisingly found, that where the fabric conditioning compositions are prepared using the treated fatty acid alkanolamide the product has improved viscosity and low temperature storage stability when compared with compositions prepared using the untreated raw material.
Thus, according to the invention there is provided a process for preparing aqueous liquid fabric conditioning compositions containing a cationic fabric softener material and a fatty acid monoalkanolamide, derived from a fatty acid having at least 14 carbon atoms, the process comprising the steps of:
i ) treating the fatty acid monoalkanolamide by
contact with water at a temperature above the melting
point of the fatty acid mono alkanolamide;
ii ) contacting the treated fatty acid
monoalkanolamide with the cationic fabric softener at
a temperature above the melting point of the cationic
fabric softener thereby to form a molten mixture
thereof;
iii) adding the molten mixture to water, at an
elevated temperature; and mixing to form a dispersion
of the molten mixture in droplet form in the water.
One of the advantages of the process according to the invention is that the melting point of the fatty acid monoalkanolamide is lowered after it has been treated.
Thus, the energy input required for the manufacture of rinse conditioning compositions containing fatty acid monoalkanolamides can be reduced. In addition, the danger of blockages caused by the fatty acid monoalkanolamide solidifying during processing in, for example, valves is reduced.
The cationic fabric softener is a water-insoluble cationic fabric softener. The water-insoluble cationic fabric softener can be any fabric-substantive cationic compound which has a solubility in water at pH 2.5 and 200C of less than 10 g/l. Highly preferred materials are quaternary ammonium salts having two C12-C24 alkyl or alkenyl chains, optionally substituted or interrupted by functional groups such as -OH, -O-, -CONH, -COO-, etc.
Well known species of substantially water-insoluble quaternary ammonium compounds have the formula
wherein R1 and R2 represent hydrocarbyl groups containing from about 12 to about 24 carbon atoms; R3 and R4 represent hydrocarbyl groups containing from 1 to about 4 carbon atoms; and X is an anion, preferably selected from halide, methyl sulfate and ethyl sulfate radicals.
Representative examples of these quaternary softeners include ditallow dimethyl ammonium chloride; ditallow dimethyl ammonium methyl sulfate; dihexadecyl dimethyl ammonium chloride; di(hydrogenated tallow alkyl) dimethyl ammonium chloride; dioctadecyl dimethyl ammonium chloride; dieicosyl dimethyl ammonium chloride; didocosyl dimethyl ammonium chloride; di(hydrogenated tallow) dimethyl ammonium methyl sulfate; dihexadecyl diethyl ammonium chloride; di(coconut alkyl) dimethyl ammonium chloride. Ditallow dimethyl ammonium chloride, di(hydrogenated tallow alkyl) dimethyl ammonium chloride, di(coconut alkyl) dimethyl ammonium chloride and di(coconut alkyl) dimethyl ammonium methosulfate are preferred.
Another class of preferred water-insoluble cationic materials are the alkylimidazolinium salts believed to have the formula:
wherein R6 is an alkyl or hydroxyalkyl group containing from 1 to 4, preferably 1 or 2 carbon atoms, R7 is an alkyl or alkenyl group containing from 8 to 25 carbon atoms, R8 is an alkyl or alkenyl group containing from 8 to 25 carbon atoms, and R9 is hydrogen or an alkyl group containing from 1 to 4 carbon atoms and A is an anion, preferably a halide, methosulfate or ethosulfate.
Preferred imidazolinium salts include 1-methyl-l (tallowylamido-) ethyl -2-tallowyl- 4,5-dihydro imidazolinium methosulfate and i-methyl-i- (palmitoylamido) ethyl -2-octadecyl-4,5- dihydroimidazolinium chloride. Other useful imidazolinium materials are 2-heptadecyl-1-methyl-1- (2-stearylamido)ethyl-imidazolinium chloride and 2-lauryl-1-hydroxyethyl1-oleyl-imidazolinium chloride. Also suitable herein are the imidazolinium fabric softening components of US Patent
No 4 127 489, incorporated by reference.
The fatty acid monoalkanolamides useful in the present invention are those derived from fatty acid amides whose alkyl radical contains at least 14 carbon atoms.
They preferably have the general formula
wherein n is 2 or 3. A suitable preferred material is tallow monoethanolamide.
The weight ratio of the cationic softener to the fatty acid monoalkanolamide in the compositions prepared according to the invention may lie from about 1:1 to about 10:1, preferably from about 1.5:1 to about 5:1.
The first step in the process according to the invention is the treatment of the fatty acid monoalkanolamide by contact with water.
In one embodiment the fatty acid monoalkanolamide is melted in the presence of water.
In another embodiment the fatty acid monoalkanolamide can be melted and subsequently poured into hot water. The water is at a temperature above which the fatty acid monoalkanolamide is molten, such as above 750C.
In this first step of the process the ratio of the fatty acid monoalkanolamide to water is preferably less than 10:1.
The exact nature of the treated fatty acid monoalkanolamide is not at present fully understood.
Without being bound by theory, it is thought that it may comprise a hydrate or some other form of complex with the water.
In the presence of excess water a lipophilic phase containing the treated fatty acid monoalkanolamide and an aqueous phase are formed. The aqueous phase may be separated from this mixture.
The next step in the process according to the invention is the formation of a molten mixture of the cationic softener and the treated fatty acid monoalkanolamide, at a temperature above the melting point of the cationic fabric softener, such as above 700C. When this molten mixture is added to water at an elevated temperature, ie a temperature above room temperature such as above 40"C, preferably above 600C, and thoroughly mixed, a dispersion of the active materials in droplet form is created.
The compositions prepared according to the invention can also contain lanolin or a lanolin-like material as defined by GB Patent No. 2 114 619 (Unilever case C.1324) incorporated herein by reference. When the compositions contain lanolin this is added with the molten mixture containing the cationic softener and the processed fatty acid monoalkanolamide to the water at an elevated temperature. The weight ratio of the cationic softener and fatty acid monoalkanolamide to the lanolin or lanolin-like material may lie from about 1:1 to about 20:1, preferably from about 5:1 to about 15:1.
The compositions prepared according to the invention can also include electrolytes. The preferred level of electrolyte in the compositions is from about 0.01% to about 0.5%, most preferably from about 0.02% to about 0.2%, measured as the anhydrous salt. Examples of suitable materials include the ionic salts of sodium, potassium, lithium, magnesium, calcium or aluminium, such as lithium chloride, sodium chloride, sodium methosulphate, sodium benzoate, calcium chloride, magnesium chloride or aluminium chloride. Of these, sodium and potassium salts are less preferred. When the composition contains electrolyte it may be added after the dispersion of the active material in droplet form has been created. The electrolyte is preferably added in the formof a concentrated solution, such as 1-10% by weight.
The compositions prepared according to the invention can also contain one or more optional ingredients selected from non-aqueous solvents such as C1-C4 alkanols and polyhydric alcohols, pH buffering agents such as weak acids eg phosphoric, benzoic or citric acids (the pH of the compositions is preferably less than 6.0), antigelling agents, perfumes, perfume carriers, fluorescers, colourants, hydrotropes, antifoaming agents, antiredeposition agents, enzymes, optical brightening agents, opacifiers, stabilisers such as guar gum and polyethylene glycol, anti-shrinking agents, anti-wrinkle agents, fabric crisping agents, spotting agents, soil-release agents, germicides, fungicides, anti-oxidants, anti-corrosion agents, preservatives, dyes, bleaches and bleach precursors, drape imparting agents and antistatic agents.
These optional ingredients can be added to the water before forming the dispersion of the active material i.e.
the cationic fabric softener and the fatty acid monoalkanolamide, or after adding the electrolyte, as appropriate.
The invention will now be illustrated bv the following non-limiting examples, in which percentages are by weight based on the weight of the end product.
EXAMPLES
Fabric conditioning compositions according to the formulations listed below were prepared by the following method.
100g of a commercially available tallow mono ethanolamide (TMEA) (Priamid 1710) was melted at 800C.
The molten material was then poured onto a similar volume of hot water. The mixture was allowed to cool and the upper paste (comprising TMEA and approximately 10% water) was scraped off. This treated TMEA was used in the preparation of composition A.
Composition A was prepared by melting a mixture of the treated TMEA, Arquad 2HT (a commercially available form of dihardened tallow dimethyl ammonium chloride containing 76% of active material) and optionally lanolin at 600C. The molten mixture was added to 80g of hot water (maintained at 65-750C in a water bath). After thorough mixing with a high speed constant torque stirrer, a dispersion formed. Calcium chloride was added to the dispersion in the form of a 10% by weight solution.
After further mixing the dispersion was allowed to cool and perfume was added.
By way of comparison composition B was prepared by melting a mixture of untreated TMEA, Arquad 2HT, and optionally lanolin. The molten mixture was added to 80g of hot water (maintained at a temperature above 800C in a water bath. A higher temperature was necessary to ensure complete mixing of the molten components). The mixture was mixed as above and a dispersion was formed.
Thereafter calcium chloride was added. After further mixing the dispersion was allowed to cool and perfume was added.
The products were stored at OOC. At specific time intervals, indicated below, the viscosity of each product was assessed visually. The following linear scale was used.
Viscosity State of composition
number
0 liquid resembles water
2 pourable liquid
4 viscous liquid, but just pourable
6 solid
Example 1
Using the process described above composition A was prepared with 5.56g of treated TMEA, (this includes about 10% by weight of water), 13.15g Arquad 2HT, 0.50g of the calcium chloride solution and 0.75% perfume.
Composition B was prepared with 5.00g of untreated
TMEA, 13.15g Arquad 2HT, 0.50g of the calcium chloride solution and 0.75% perfume.
The viscosity of compositions A and B were assessed and the following results obtained.
Time/Weeks Viscosity Number
A B
0 d 1
1 e 2
7 e 4
These results demonstrate that the product viscosity and low temperature storage stability is improved when the composition is prepared using the treated tallow monoethanolamide (composition A).
Example 2
Using the process described above composition A was prepared with 4.44g of treated TMEA (this includes about 10% by weight of water), 13.15g Arquad 2HT, 1.00g lanolin (Coronet ex Croda), and 0.50g of the calcium chloride solution and 0.75% perfume.
Composition B was prepared with 4.00g of TMEA, 13.15g
Arquad 2HT, 1.00g lanolin, 0.50g of a calcium chloride solution and 0.75% perfume.
The viscosity of compositions A and B were assessed and the following results obtained.
Time/Weeks Viscosity Number
A B 0 d
2 1 5 h 6
These results also demonstrate that the product viscosity and low temperature storage stability is improved is when the composition is prepared using the treated tallow monoethanolamide (composition A).
Claims (6)
1. A process for preparing aqueous liquid fabric conditioning compositions containing a cationic fabric softener material and a fatty acid monoalkanolamide, derived from a fatty acid having from at least 14 carbon atoms, the process comprising the steps of:
i ) treating the fatty acid monoalkanolamide by
contact with water at a temperature above the melting
point of the fatty acid monoalkanolamide;
ii ) contacting the treated fatty acid
monoalkanolamide with the cationic fabric softener at
a temperature above the melting point of the cationic
fabric softener thereby to form a molten mixture
thereof;
iii) adding the molten mixture to water, at an
elevated temperature; and mixing to form a dispersion
of the molten mixture in droplet form in water.
2. A process according to Claim 1 wherein the method of treating the fatty acid monoalkanolamide is selected from
i ) melting the fatty acid monoalkanolamide in the
presence of water; and
ii ) pouring molten fatty acid monoalkanolamide into
hot water.
3. A process according to Claim 2 wherein the ratio of the fatty acid monoalkanolamide to the water in step (i) is less than 10:1.
4. A process according to Claim 1 wherein the weight ratio of the cationic fabric softener to the fatty acid monoalkanolamide in the composition is within the range from 1:1 to 10:1.
5. A process according to Claim 1 wherein an electrolyte is added in step (iii).
6. A process as claimed in Claim 1, carried out substantially as described in any one of the Examples herein.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB868627599A GB8627599D0 (en) | 1986-11-19 | 1986-11-19 | Fabric softening compositions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8726882D0 GB8726882D0 (en) | 1987-12-23 |
| GB2197666A true GB2197666A (en) | 1988-05-25 |
Family
ID=10607558
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB868627599A Pending GB8627599D0 (en) | 1986-11-19 | 1986-11-19 | Fabric softening compositions |
| GB08726882A Withdrawn GB2197666A (en) | 1986-11-19 | 1987-11-17 | Method of preparing fabric softening compositions |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB868627599A Pending GB8627599D0 (en) | 1986-11-19 | 1986-11-19 | Fabric softening compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8627599D0 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407040A3 (en) * | 1989-06-21 | 1991-09-11 | Colgate-Palmolive Company | Cationic surface active fibre conditioning compositions comprising compounds including long chain hydrocarbyl groups |
| GR900100471A (en) * | 1989-06-21 | 1991-11-15 | Colgate Palmolive Co | Fiber softener compounds, with cationic surfactant containing compounds including water-soluble long-chain groups. |
| WO1999060198A1 (en) * | 1998-05-20 | 1999-11-25 | Kao Corporation | Softening finish composition |
| US6541444B1 (en) | 1998-05-20 | 2003-04-01 | Kao Corporation | Softener composition |
-
1986
- 1986-11-19 GB GB868627599A patent/GB8627599D0/en active Pending
-
1987
- 1987-11-17 GB GB08726882A patent/GB2197666A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407040A3 (en) * | 1989-06-21 | 1991-09-11 | Colgate-Palmolive Company | Cationic surface active fibre conditioning compositions comprising compounds including long chain hydrocarbyl groups |
| GR900100471A (en) * | 1989-06-21 | 1991-11-15 | Colgate Palmolive Co | Fiber softener compounds, with cationic surfactant containing compounds including water-soluble long-chain groups. |
| WO1999060198A1 (en) * | 1998-05-20 | 1999-11-25 | Kao Corporation | Softening finish composition |
| US6541444B1 (en) | 1998-05-20 | 2003-04-01 | Kao Corporation | Softener composition |
| US7351685B2 (en) | 1998-05-20 | 2008-04-01 | Kao Corporation | Softener composition |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8726882D0 (en) | 1987-12-23 |
| GB8627599D0 (en) | 1986-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |