GB2336848A - Liquids release from particulate surface cleaners - Google Patents
Liquids release from particulate surface cleaners Download PDFInfo
- Publication number
- GB2336848A GB2336848A GB9809264A GB9809264A GB2336848A GB 2336848 A GB2336848 A GB 2336848A GB 9809264 A GB9809264 A GB 9809264A GB 9809264 A GB9809264 A GB 9809264A GB 2336848 A GB2336848 A GB 2336848A
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- United Kingdom
- Prior art keywords
- composition
- encapsulated
- composition according
- materials
- perfume
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 65
- 239000002304 perfume Substances 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 10
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 8
- 239000003899 bactericide agent Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 26
- 239000003205 fragrance Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 239000000077 insect repellent Substances 0.000 claims description 3
- 239000011164 primary particle Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001828 Gelatine Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 229920000620 organic polymer Polymers 0.000 claims description 2
- 239000011149 active material Substances 0.000 claims 1
- 239000002198 insoluble material Substances 0.000 claims 1
- 239000012459 cleaning agent Substances 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 5
- 230000000717 retained effect Effects 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract description 2
- 239000011344 liquid material Substances 0.000 abstract 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 6
- -1 for example Substances 0.000 description 6
- 125000002091 cationic group Chemical group 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 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
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229910000271 hectorite Inorganic materials 0.000 description 3
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 229910000275 saponite Inorganic materials 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003826 tablet Substances 0.000 description 2
- 235000011178 triphosphate Nutrition 0.000 description 2
- 239000001226 triphosphate Substances 0.000 description 2
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 2
- KMPQYAYAQWNLME-UHFFFAOYSA-N undecanal Chemical compound CCCCCCCCCCC=O KMPQYAYAQWNLME-UHFFFAOYSA-N 0.000 description 2
- 238000010407 vacuum cleaning Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000008620 Fagopyrum esculentum Species 0.000 description 1
- 235000009419 Fagopyrum esculentum Nutrition 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000011852 gelatine desserts Nutrition 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
- 150000002462 imidazolines Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229940094522 laponite Drugs 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical compound [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229940100630 metacresol Drugs 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 229920001285 xanthan gum 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
- C11D3/0031—Carpet, upholstery, fur or leather cleansers
-
- 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
- C11D3/0063—Photo- activating 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
- C11D3/50—Perfumes
- C11D3/502—Protected perfumes
- C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay
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)
- Dispersion Chemistry (AREA)
- Detergent Compositions (AREA)
- Fats And Perfumes (AREA)
Abstract
Particulate compositions primarily suitable for the domestic cleaning of carpets and upholstery are disclosed in which encapsulated liquids may be selectively retained on the item to be cleaned by means of selecting the particle size of the encapsulate and the ratio of encapsulate to carrier particle size. The cleaning agent is intended for use without a solvent medium, with excess cleaning agent being removed at the end of the cleaning process by vacuum cleaner. This enables perfumes, bactericides and similar liquid materials to be retained on the item being cleaned whilst the cleaning agent removes other liquid soil components such as greases and oils.
Description
1 2336848 LIQUIDS RELEASE FROM PARTICULATE SURFACE CLEANERS
FIELD OF THE 1NTION
The present invention relates to a high surface area particulate cleaning composition intended to clean high surface area objects, wherein the cleaning agent is not dissolved during the process. The cleaning agent is partially removed at the end of the process by suction such that a liquid component is left partially in situ by means of an encapsulate.
BACKGROUND TO THE RWENTION
Detergent compositions are known in many physical forms including powders, liquids, pastes and tablets. Most compositions rely on dissolution of the composition to a working concentration with a suitable solvent, for example, water. Another class of cleaning agents are designed to be spread as solids on the article to be cleaned. By virtue of their contacting soil components on the article they adsorb some of the soil. On subsequent removal by vacuuming a proportion of the soil is therefore removed with the cleaning agent. This type of product is particularly suitable for household cleaning of carpets, upholstery and curtains where the use of water or solvents is impractical. The process primarily acts to freshen the articles, the action of perfiame is therefore central to the perceived efficacy of the product.
In formulating such products with perfume the technologist faces a dilemma. First that a particulate composition must be capable of adsorbing oily soils from articles to be cleaned, for example by capillary action. Yet it must distribute perfume adsorbed in the particulate composition to the article, which is the reverse process. Only if this is achieved is any persistence of the fragrance observed. This is particularly important with deodorising fl-agrances. With current products the perfume is largely left in the particulate composition and what is transferred to the article to be cleaned is largely removed in the vacuum cleaning step. A proposed solution is to utilise micro encapsulated fragrance of such a particle size and composition as to enable it to be retained on the article to be cleaned after the vacuuming process.
It is therefore desirable to have a method of successfully formulating a particulate cleaning composition to be used without dissolution whereby perfume is transferred to the article to be cleaned to enable a persistence of the fragrance so as to maintain the perceived cleanliness of the article and/or any deodorising benefit.
It is an object of the present invention to obviate or mitigate the abovementioned disadvantages.
2 BACKGROUND AR-T
Solid cleaning compositions for use, for example, on carpets have been known for many years. US 2, 165, 586 (Studer) discloses a carpet cleaning composition based on buckwheat flour which is spread over the carpet, rubbed in and then removed using a vacuum cleaner. Micro encapsulated fiagrance treated fabric has been disclosed in US 4 882 220 (Kanebo Ltd). This discloses the use of a resinous binder by which the encapsulates are bound to fibres from the medium of a liquid composition. A large range of encapsulating systems are available and a range of examples are cited in US 4,520,142 (Minnesota mining Co.) which describes the use of encapsulates in aerosol applications.
Encapsulates in combination with a powdered carpet cleaner have been disclosed in the text of US 4,244,834 (Borax Corp). No examples are cited and indication is given as to how they are to be used so that the encapsulate may be preferentially deposited on the items to be cleaned whilst not being removed in the vacuuming step. In addition it discloses a preferential use with antistatic agents which based on comparative results herein described reduce the retention of encapsulate. No disclosure of non odiferous encapsulated materials is made.
None of the art teaches a practicable method of formulating an encapsulated liquid or perfume such that the encapsulate is preferentially retained on the article to be cleaned such that the encapsulated material may be released subsequent to the cleaning process.
SUMMARY OF = INVENTION
The present invention provides a cleaning composition consisting of a carrier powder of average particle size between 100 gm and 1000 ptm in combination with an encapsulate such that the encapsulate has an average primary particle size of between 1 0Optm and 0.01 gm. The encapsulated material may be one of a perfinne, bactericide, insect repellent or a combination thereof. This encapsulate will be of any effective level but more preferably levels of 0.02 to 5% will be used.
DETAILED DESCRIPTION OF THE INVENTION
Thus according to the present invention the cleaning composition is a free flowing powder base composition to which is admixed an encapsulated liquid composition.
The PQwder base cQmposition The powder base composition will typically comprise high surface area particles often of a porous nature. These particulate materials may, for example, be a alkaline earth metal carbonate, clay, alkali metal polyphosphate, an alkali metal carbonate, alkali metal 3 bicarbonate, alkali metal citrate, zeolite or a crystalline or amorphous silicate. Zeolites 4A and A24 are examples. Mixtures of these materials may be used.
The clay may for example be a smectite such as a Laponite, Bentonite, Montmorrillonite, Hectorite or Saponite. For example, the clay may be a Sodium Montmorrillonite, a Sodium Hectorite, a Sodium Saponite, a Calcium Montmorrillonite or a Lithium Hectorite. The particulate mixture may in addition contain dyes, pigments or other coulorants. For practical purposes the materials may be as derived from natural sources, for example, limestones and chalks and may therefore contain levels of impurities associated with these sources, for example quartz.
The particulate mixture will typically comprise from 95% to 99.98% of the composition.
Additional components adsorbed on the base composition A cationic surface active agent may also be employed as a part of a base composition for example as an anti-static agent but is not a preferred embodiment of the invention. The cationic surface active agent is preferably used in an amount of up to 2%, more preferably up to 1 %, even more preferably up to 0.5% by weight of the formulation. Examples of suitable cationic surface active agents include quaternary ammonium salts having three lower (C,-j alkyl groups (preferably methyl groups) and a long chain (C&_20) alkyl group, e.g. coco trimethyl ammonium chloride. Further examples include alkyl pyridinium salts and other compounds in which the nitrogen atom of the pyridine assumes a quaternary form, e.g. as in an alkyl pyridinium bromide. Further examples of cationic surface active agents which may be used include amine and imidazoline salts.
The encapsulate The encapsulating material may be any material which gives a particulate encapsulate where no part of the encapsulated liquid can directly contact its surroundings. Liquids adsorbed in porous or permeable materials are therefore not included. It is recognised that in commercial production some encapsulate material will inevitably remain un-encapsulated and some coating remain unused. This invention does not therefore rely on the success of the encapsulation procedure or of the amount or proportion of any liquid or liquids present that have been encapsulated but on the presence of encapsulated material per se.
Suitable encapsulating materials are illustrated by the following nonlimiting examples:
Organic polymers - Addition polymers - eg Poly Vinyl; ethers, esters, amides, carboxylates, maleates, methacrylates, acrylates, alcohols, acetates and copolymers thereof.
4 - Condensation polymers - eg Poly; esters, and urethanes, gelatin, xanthan gums, guar gum, alginates.
I- The encapsulates will typically consist of largely spherical structures filled at lest in part with the desired liquid, the remainder being either liquid vapour, air, nitrogen, argon or similar. These structures may consist of aggregates of multiples of these primary structures as may typically be produced during the encapsulation process.
The encapsulates may typically be produced by emulsifying the desired liquid in another liquid, the introduction of an amphiphillic polymer or monomer which will reside largely at the interface of the droplets. This emulsion or suspension is then reacted to polymerise and / or cross link to form suspended encapsulate which is then used as such or removed by filtration, centrifugation or other suitable means.
The Encapsulated material In addition an encapsulate or a liquid may be incorporated in the composition for the purposes of substantially segregating a liquid component from the other components of the composition when in a tablet form. As used herein the term encapsulate refers to a particulate material in which comprises a liquid or substantially liquid phase or phases surrounded completely by a barrier or membrane which is impermeable to the said liquid phase material(s).
The encapsulated liquid may be any liquid with a detergent function examples being Perfumes and Odiferous substances Perfume precursors (eg. esters of volatile aldehydes and ketones) Bactericides Bactericidal fragrances Examples of suitable are given in 'Antimicrobial activity of Aroma Chemicals and Essential oils, Morris, Khettry, Seitz; Journal of the American oil chemists society, Vol 56, No 5, pp 595-603, 1979.
EXAMPLES
The invention will be further described with reference to the following non-limiting examples.
EXAMPLES 1
Performance in various base compQ.ition-s Table 1: Comparative-compositions Composition 1 2 3 4 5 6 7 Porous Silica 1.2 1.2 2.4 1.2 1 2 Calcium 97.6 98.8 95.2 Carbonate Sodium so 30 Carbonate Sodium 47.8 47.8 Bicarbonate Sodium 20 Triphosphate Zeolite 98 96 Perfume 1.2 NIL 2.4 1 1 1 2 Porous Silica = Microsil ED ex Crossfield Calcium Carbonate Trucarb 130 ex Tilcon Sodium Carbonate Granular Ash ex Brunner Mond Sodium Bicarbonate = Sodium carbonate ex Brunner Mond Sodium Triphosphate = STP P ex Albright and Wilson Zeolite = Zeolite 4A ex Degussa Perfume = EFF 71012 Alpine Meadow ex European Fragrances
6 Table 2: Compositions Composition AA B c D E F G H Porous Silica 1.2 2.4 2.4 1.2 1 2 1 Calcium 96.6 93.2 93.2 96 Carbonate Sodium 50 30 Carbonate Sodium 46.8 47.8 Bicarbonate Sodium 20 Triphosphate Zeolite 97 95 Perfume 1.0 2.0 2.0 1.0 1.0 1.0 1.0 1 encapsulate C Perfume 1.2 2.4 Nil 1 1 1 2 1.2 Cetyl 1 trimethyl Ammonium Chloride The Perfume encapsulate used in AA contains Perfume at 50% activity. Average particle size 1Ogm. Based on Gelatine polymer. Average particle sizes composition AA = 350gm, composition E = 520gm.
7 The compositions were sprinkled on a wool carpet tile (5mm thick pile) at a rate of 0.5g per square centimetre. The tiles were then left for fifteen minutes and the excess powder removed with a vacuum cleaner. The assessment was carried out by five people using the following sconng system. 5 = Strong fragrance 4 = Fragrance clearly present 3 = Fragrance present 2 = Fragrance present but weak 1 =Fragrance just perceivable 0 = No Fragrance Table 3: Test 1 results Composition AA B c D E F G Initial smell 5 5 1.2 5 5 5 5 Composition 1 2 3 4 5 6 7 Initial smell 5 0 5 5 5 5 5 Table 4: Test 2 results Increase in tile weight per square centimetre (Final tile weight - Initial tile weight) Composition AA B c D E F G Initial smell 0.05g 0.04g 0.08g 0.02g 0.02g 0.20g 0.21g Composition 1 2 3 4 5 6 7 Initial smell 0.06g 0.03g 0.07g 0.01g 0.02g 0.21g 0.23g This demonstrates that the cleaning composition has been substantially removed by the vacuum cleaning process.
The carpet tiles were then left in a ventilated area at room temperature for 5 days and reassessed.
Table 5: Test 3 results Composition AA B c D E F G Initial smell 0.2 0.4 0 0 0 0 0.8 Composition 1 2 3 4 5 6 7 Initial smell 0 0 0.4 0 0 0 0.4 8 The tiles then had a clean steel 1 Okg weight dropped on them from a height of 0. 5m five times to simulate walking on a carpet.
Table 6: Test 4 results Composition A B c D E F G Initial smell 3 4 4 3 3 3 4.2 Composition 1 2 3 4 5 6 7 Initial smell 0 0.4 0 0 0 0 0.4 These results demonstrate the ability to deposit the encapsulate of 1 Ogm diameter on a surface without removing its effect whilst substantially removing the carrier 'base' composition.
The effect Qf Encapsulate 12artiele size The following composition were made according to Composition AA above but in the other cases the encapsulate size was varied as in the table below. The test regimes indicated above for Tests 1,2,3 and 4 were used.
Table 7
Composition Average Result Encapsulate Test 1 Test 2 Test 3 Test 4 Diameter AB 2im 5 0.05g 0.4 3.6 AA 1 Ogm 5 0.05g 0.2 4.0 AC 15gm 5 0.06g 0.2 3.8 AD 20pim 5 0.10g 0.4 2.8 AE 50pt 5 0.05g 0.2 1.2 AF loogm 5 0.05g 0.8 0 AG 230gm 5 0.02g 0 0 H 10PLM 5 0. 1 Og 0.2 2.8 1 Nil 5 0.06 0 0 Nil 5 0.07 0.4 0.4 9 This demonstrates that there is an optimum size for the encapsulate and that there is no advantage of including a cationic anti-static agent.
Examples- including an antibacterial perfume compQnent Example AA-ABP 1 as example AA but with the inclusion of 10% by weight para tert butyl meta cresol. Ex Aldrich chemical Co. Example AA-ABP2 as example AA but with the inclusion of 0.4% by weight Undecyl aldehyde. Ex Aldrich chemical Co.
Table 8
Compostion Average Result Encapsulate Test 1 Test 2 Test 3 Test 4 Diameter AA-ABM 11 PLM 5 0.05g 1 5 AA-ABP2 14gm 5 0.05g 0.2 4.2 AA 1 Ogm 5 0.05g 0.2 4.0 1 Nil 5 0.06 0 0 3 Nil 5 0.07 0.4 0.4 Exm-121es- Ii ing a t" perfwne combinatiQn Example AA-2perf as example AA but with the unencapsulated perfwne being Spring Soft LR 54106 ex Bush Boak Allan and the encapsulated perfume being 79951 Summer Blossom ex European Flavours and Fragrances.
Table 9
Composition Average Result Encapsulate Test 1 Test 3 Test 4 Diameter /Smell AA-2 11 PIM 5 5 Bright Background Floral aldehydic smell summer Spring notes notes This shows a composition where there is a sequential release of fragrance type.
Claims (1)
1) A powder composition for cleaning in the absence of a continuous liquid phase consisting of a carrier powder of average particle size between 100 tm and 1000 vim in combination with encapsulated liquid such that encapsulated materials have an average primary particle size of between 100 gm and 0. 0 1 ptm.
2) A composition according to claim 1 where the ratio of the average particle sizes of the encapsulated materials to the rest of the composition is 1: 10.
3) A composition according to claim 1 where the ratio of the average particle sizes of the encapsulated materials to the rest of the composition is 1:20.
4) A composition according to claim 2 or 3 where the encapsulated materials have an average primary particle size between 2gm and 20gm.
5) A composition according to claims 4 where encapsulated materials are present at between 0.02 to 5% by weight.
6) A composition according to claims 3, 4 or 5 where the encapsulating material or materials are organic polymers.
7) A composition according to claim 4 where the encapsulated material or materials are one or more of a perflune, bactericide, bactericidal perfume, insect repellent or a combination thereof 8) A composition according to any proceeding claim wherein two fragrance materials are chosen such as to give a sequence of hedonic characteristics by using one as a free fragrance and the other as an encapsulated material.
9) A composition according to claim 5 or 6 where the composition is contains greater than 90% water insoluble material and which is substantially free of surface active material.
10) A composition according to claim 6 where the encapsulating material is gelatine and the composition contains greater than 90% calcium carbonate.
11) A composition according to claim 7 where the encapsulated material is a bactericidal perfume or insect repellant.
12) A method of cleaning carpets and upholstery consisting of spreading a particulate mixture 11 according to claim 7, removing the excess by vacuum cleaner such that residual perfume may be detected after 1 week by the application of a compressive force to the fabric so treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9809264A GB2336848A (en) | 1998-04-30 | 1998-04-30 | Liquids release from particulate surface cleaners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9809264A GB2336848A (en) | 1998-04-30 | 1998-04-30 | Liquids release from particulate surface cleaners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9809264D0 GB9809264D0 (en) | 1998-07-01 |
| GB2336848A true GB2336848A (en) | 1999-11-03 |
Family
ID=10831262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9809264A Withdrawn GB2336848A (en) | 1998-04-30 | 1998-04-30 | Liquids release from particulate surface cleaners |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2336848A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145184A (en) * | 1975-11-28 | 1979-03-20 | The Procter & Gamble Company | Detergent composition containing encapsulated perfume |
| EP0376385A2 (en) * | 1988-12-29 | 1990-07-04 | The Procter & Gamble Company | Perfume microcapsules for use in granular detergent compositions |
| US4961871A (en) * | 1989-11-14 | 1990-10-09 | The Procter & Gamble Company | Powdered abrasive cleansers with encapsulated perfume |
| EP0397245A2 (en) * | 1989-05-11 | 1990-11-14 | The Procter & Gamble Company | Perfume particles for use in cleaning and conditioning compositions |
| WO1992018601A1 (en) * | 1991-04-16 | 1992-10-29 | Minnesota Mining And Manufacturing Company | Improvements in coated perfume particles |
-
1998
- 1998-04-30 GB GB9809264A patent/GB2336848A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145184A (en) * | 1975-11-28 | 1979-03-20 | The Procter & Gamble Company | Detergent composition containing encapsulated perfume |
| EP0376385A2 (en) * | 1988-12-29 | 1990-07-04 | The Procter & Gamble Company | Perfume microcapsules for use in granular detergent compositions |
| EP0397245A2 (en) * | 1989-05-11 | 1990-11-14 | The Procter & Gamble Company | Perfume particles for use in cleaning and conditioning compositions |
| US4961871A (en) * | 1989-11-14 | 1990-10-09 | The Procter & Gamble Company | Powdered abrasive cleansers with encapsulated perfume |
| WO1992018601A1 (en) * | 1991-04-16 | 1992-10-29 | Minnesota Mining And Manufacturing Company | Improvements in coated perfume particles |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9809264D0 (en) | 1998-07-01 |
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| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |