WO2015112684A1 - Method for treating laundry - Google Patents
Method for treating laundry Download PDFInfo
- Publication number
- WO2015112684A1 WO2015112684A1 PCT/US2015/012407 US2015012407W WO2015112684A1 WO 2015112684 A1 WO2015112684 A1 WO 2015112684A1 US 2015012407 W US2015012407 W US 2015012407W WO 2015112684 A1 WO2015112684 A1 WO 2015112684A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- source
- treatment composition
- appliance
- laundry
- Prior art date
Links
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- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- XQZYPMVTSDWCCE-UHFFFAOYSA-N phthalonitrile Chemical compound N#CC1=CC=CC=C1C#N XQZYPMVTSDWCCE-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- NGVDGCNFYWLIFO-UHFFFAOYSA-N pyridoxal 5'-phosphate Chemical compound CC1=NC=C(COP(O)(O)=O)C(C=O)=C1O NGVDGCNFYWLIFO-UHFFFAOYSA-N 0.000 description 1
- 235000007682 pyridoxal 5'-phosphate Nutrition 0.000 description 1
- 239000011589 pyridoxal 5'-phosphate Substances 0.000 description 1
- FCHXJFJNDJXENQ-UHFFFAOYSA-N pyridoxal hydrochloride Chemical compound Cl.CC1=NC=C(CO)C(C=O)=C1O FCHXJFJNDJXENQ-UHFFFAOYSA-N 0.000 description 1
- RADKZDMFGJYCBB-UHFFFAOYSA-N pyridoxal hydrochloride Natural products CC1=NC=C(CO)C(C=O)=C1O RADKZDMFGJYCBB-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 235000010378 sodium ascorbate Nutrition 0.000 description 1
- 229960005055 sodium ascorbate Drugs 0.000 description 1
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 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
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical group [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 229960000344 thiamine hydrochloride Drugs 0.000 description 1
- 235000019190 thiamine hydrochloride Nutrition 0.000 description 1
- 239000011747 thiamine hydrochloride Substances 0.000 description 1
- 229960002363 thiamine pyrophosphate Drugs 0.000 description 1
- 235000008170 thiamine pyrophosphate Nutrition 0.000 description 1
- 239000011678 thiamine pyrophosphate Substances 0.000 description 1
- YXVCLPJQTZXJLH-UHFFFAOYSA-N thiamine(1+) diphosphate chloride Chemical compound [Cl-].CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N YXVCLPJQTZXJLH-UHFFFAOYSA-N 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- ZCIHMQAPACOQHT-ZGMPDRQDSA-N trans-isorenieratene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/c1c(C)ccc(C)c1C)C=CC=C(/C)C=Cc2c(C)ccc(C)c2C ZCIHMQAPACOQHT-ZGMPDRQDSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
-
- 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
-
- C11D2111/46—
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
Definitions
- Conventional dish laundry detergent compositions include bleaching agents such as sodium percarbonate and use amine cobalt salt as a bleach catalyst. Some dish and laundry detergent formulations use sodium hypochlorite as a bleaching agent. Automatic dishwasher detergent composition formulations and laundry detergent formulations employing such bleaching agents have varying degrees of efficacy with such efficacy not always meeting consumer desires. Depending on the particular automatic dishwasher detergent composition being used, it is not uncommon for plastic food storage tubs to remain stained after washing. Similarly, sometimes stains on clothing are not removed to a satisfactory degree when washed in an automatic dishwasher.
- benefit active ingredients might be desirable in automatic dishwasher detergent and laundry detergent compositions.
- benefit active ingredients such as stain removers, bactericides, and active ingredients for eliminating endospores on dish, cooking ware, and clothing.
- benefit active ingredients there are many benefit active ingredients that can conceivably be included in dish and laundry detergent compositions. Of course, there are many technical challenges to integrating such benefit active ingredients into commercially viable dishwasher detergent compositions. Many benefit active ingredients may not be chemically stable in powder, liquid, or gel formulations. Dish and laundry detergent compositions having certain benefit active ingredients may not be physically stable. Some benefit active ingredients may not be environmentally stable. For instance, changes in temperature and humidity may have adverse effects on the composition. Further, some benefit active ingredients may be incompatible with other components of dishwasher detergent compositions.
- An alternative approach for enabling the inclusion of certain benefit active ingredients in dishwasher detergent compositions is the use of photo-activated chemistry.
- micronized titanium dioxide in water can be activated by light to become a bleaching system.
- Photoactivators such as phthalocyanines and naphthalocyanines, including sulphonated zinc phthalocyanine, can be effective as a photo bleaching agent and antimicrobial agent.
- benefit active ingredients can be provided in a composition separate from a fully formulated dish or laundry detergent.
- One barrier to employing photoactive chemistry in dish and laundry detergents is the necessity of irradiating the cleaning composition within the dishwasher or laundry washing machine during the cycle. Dishwashing and laundry washing machines can be provided with interior lights at the time of manufacture. However, if an efficacious detergent that includes photoactive chemistry is developed, the vast majority of appliances that are presently in consumers households are without such interior lighting. It is unlikely that consumers will purchase a new appliance to take advantage of a detergent that employs photoactive chemistry. In view of that, even if a developer of detergents develops a fantastic breakthrough composition employing photochemistry, only a limited fraction of consumers will be able to see the benefit.
- the volume of dishwasher detergent composition required to supply the limited fraction of consumers who might be willing to purchase an appliance having interior lighting may not be a justifiable business proposition. Nor may it be attractive for a business to wait over time, perhaps many years, until new models of dishwashers having the interior lighting make their way into consumers' households.
- One embodiment of the present invention is a method for treating dishware comprising the steps of: providing a treatment composition comprising a photoactive component; contacting in an appliance said treatment composition with said dishware; and irradiating said treatment composition with visible light; wherein the step of irradiating said treatment composition with visible light is performed with a source of light that is tool free insertable into and removable from said appliance.
- Another embodiment of the present invention is a method for treating laundry comprising the steps of: providing a treatment composition comprising a photoactive component; contacting in an appliance said treatment composition with said laundry; and irradiating said treatment composition with visible light; wherein the step of irradiating said treatment composition with visible light is performed with a source of light that is tool free attachable to and detachable from an interior portion of said appliance.
- a lighted dispenser comprising: a light housing comprising a power source and source of light conductively connected to said power source; and a treatment composition reservoir operatively connected to said light housing, said reservoir comprising a dispensing outlet; wherein said lighted dispenser is sized and dimensioned to fit within an interior portion of a washing appliance.
- kits for treating a substrate comprising: a light housing comprising source of light; and a container containing a photocatalyzable treatment composition comprising a photoactivator; wherein said light housing and said container are co- packaged with one another.
- Fig. 1 is a dispenser having a source of light and a reservoir that a consumer can put into an appliance.
- Fig. 2 is a carrier for a dispenser.
- Fig. 3 is a dispensing apparatus comprising a magnet operatively attached to the dispensing apparatus.
- Fig. 4 is a dispensing apparatus having locking members that are tool free attachable to and detachable from a rack or other mobile component that is in an appliance.
- Fig. 5 is an automated dishwasher.
- Fig. 6 is an automated laundry washing machine.
- Fig. 7 is a light housing comprising a power source and source of light conductively connected to the power source.
- Fig. 8 is a kit that comprises a light housing comprising a power source and a source of light conductively connected to the power source and a treatment composition comprising a photoactivator.
- a photoactive component can be provided in or with dish and laundry detergent formulations in different forms.
- the photoactive chemistry may be provided in a fully formulated powder, liquid, gel, or a unit dose dissolvable pouch.
- Photoactive chemistry can also be provided in a composition separate from a fully formulated dish or laundry detergent. If provided as a separate composition, the composition having photoactive chemistry can be delivered to the wash prior to, during, or after the fully formulated detergent has been delivered in the wash.
- waterproof light fixtures may shine within the cabinet that contains the washing drum or within the drum itself.
- recessed lights may be provided in the walls of the drum and direct light towards the center of the drum. The lights may be towards the lower part of the drum so that when the drum is filled or partially filled with wash liquor containing a photoactive component, the lights irradiate the wash liquor to activate the photoactive component.
- the lights may be affixed to or within the top door on an upright laundry washing machine and direct light downwardly on the wash liquor or at the outlet from which water is dispensed into the drum.
- laundry washing machines that have a porous drum such drum is housed within a shell, the shell being the component that contains the wash liquor. It may be advantageous to have the lights shine into this shell to activate any photoactive component provided in the wash liquor.
- Such an arrangement can make the technical aspects of providing for light simpler since the lights do not have to come into contact with the articles being washed.
- the light activity of various photoactive components can vary. For instance, some photoactive components may be activated by ultraviolet light and/or visible light. If ultraviolet light activates the photoactive component, then it may be more practical to have the source of light positioned in the appliance so that the consumer cannot make visual contact with the source of light. Such arrangements might best be provided for by having the light irradiate upon the wash liquor as the wash liquor passes through a conduit during circulation. Constructing an appliance to be configured as such can be done relatively easily. However, it can be challenging for a consumer to change the source of light in the event that the source of light burns out or becomes faulty if the source of light is embedded deeply into the appliance.
- the source of light is in the drum of the appliance or ceiling or floor of the appliance, it may be relatively easy for the consumer to change the source of light in the event that the light burns out or becomes faulty.
- the source of light can be one or more light emitting diodes, incandescent tungsten filament lightbulbs, Hg(Ar) UV lamps, fluorescent lamps, compact fluorescent lamps, cold cathode fluorescent lamps, high intensity discharge lamps, or other such light source.
- the source of light needs to have some spectrum that is in harmony with the wavelength or range of wavelengths that the photoactive component is tuned to.
- Still yet another alternative approach is to have the source of light remote from where the washing occurs and transport the light via fiber optic cable, or other conveyance, from the source of light to where the wash liquor contacts the article being cleaned.
- a dispenser 10 having a source of light 20 and a reservoir 70 that a consumer can put into an appliance is shown in Fig. 1.
- the dispenser 10 can be a portable device that is sized and dimensioned to fit within the interior portion of a washing appliance without interfering with any of the moving parts of the machine into which the dispenser 10 is inserted or any of the contents thereof.
- the interior portion can be considered to be, for instance, the drum of a laundry washing machine.
- the interior portion can be considered to be the space in which the racks and dishware reside when the dishwasher is operated.
- Typical household dishwashing appliances and laundry washing machines have a washing space that is less than about 1 m 3 or even less than about 0.7 m 3 , or even less than about
- the dispenser 10 can have a volume less than about 6000 cm 3.
- the dispenser 10 can have a volume less than about 3000 cm .
- the dispenser 10 can have a volume less than about
- the dispenser 10 can have a volume less than about 750 cm 3.
- the dispenser 10 can have a volume less than about 325 cm .
- the dispenser 10 can have a volume less than about 150 cm 3 .
- the dispenser 10 can have a low profile. Low profile is used in the sense that the dispenser 10 is generally thin.
- the dispenser 10 can have a thickness as measured in the direction in which light is emitted from the source of light 20 of less than about 5 cm, or even less than about 2 cm, or even less than about 0.5 cm.
- the power source 40 can be conductively connected to the source of light 20.
- conductively connected it is meant that the power can be transferred from the power source 40 to the source of light 20, for instance by a direct connection in a circuit, induction, or any other technical approach known for transferring energy from a power source 40 to a source of light 20.
- the power source 40 can be connected via wires 50 in an electrical circuit that includes the source of light 20.
- more complicated circuitry is contemplated, such as an on/off switch, a timer, or programmable logic controller that can control the on and off, brightness, spectrum, or other attribute of the light emitted from the source of light 20.
- the reservoir 70 can comprise a dispensing outlet 80.
- the dispensing outlet 80 can be a weep hole 90.
- the reservoir 70 can comprise a plurality of weep holes 90.
- the weep holes 90 can be sized and dimensioned to slowly dispense treatment composition 100.
- the weep holes 90 can be circular and have a diameter of 2 mm or less. The number of and dimensions of the weep holes 90 can depend on the hydrodynamic properties of the treatment composition 100. It is contemplated that the flow rate from the dispensing outlet 80 can be controlled.
- the weep holes 90 may have an adjustable obstruction that restricts flow from the weep hole 90, for instance a cover or obstruction that partially blocks the open cross section of the weep hole 90.
- the light housing 60 and the reservoir 70 can be arranged in a side by side relationship. Alternatively, the light housing 60 can be arranged so that in use, the reservoir 70 is above the light housing 60 so that when treatment composition 100 is dispensed from the reservoir 70, it passes by the source of light 20. Such a design might be practical so that the treatment composition 100, which might contain photoactive chemistry, is activated as it is dispensed from the reservoir 70.
- the source of light 20 can be a light emitting diode, incandescent light, an incandescent tungsten filament lightbulb, Hg(Ar) UV lamp, fluorescent lamp, compact fluorescent lamp, cold cathode fluorescent lamp, high intensity discharge lamp, or other such light source.
- the power source 40 needs to provide sufficient power to power the source of light 20 to the degree needed.
- the power source 40 can be a single use power source or can be capable of powering the source of light 20 over multiple uses.
- the reservoir 70 can have an inlet port 110.
- the inlet port 110 can provide for an opening in the reservoir 70 through which treatment composition 100 can be delivered into the reservoir 70.
- the inlet port 110 can be a stopper, a lug and key stopper, screw in plug, or the like, such that the treatment composition 100 can be conveniently placed into the reservoir 70.
- a section of the reservoir 70 is illustrated as being removed so as to illustrate the treatment composition 100 residing in the reservoir 70.
- the treatment composition 100 can be driven through the dispensing outlet 80 by gravity flow.
- Other approaches for dispensing the treatment composition 100 from the reservoir 70 are contemplated, including by a pump that is electromechanically driven or mechanically driven by the consumer setting a spring loaded trigger activated pump.
- the dispenser 10 can further comprise a locking member 120 operatively connected to one or both of the light housing 60 and treatment composition reservoir 70.
- the locking member 120 shown in Fig. 1 is but one example of a possible locking member 120 that may be employed with the dispenser 10.
- the locking member 120 can comprise a body 130 having one or more fins 140 extending from the body 130.
- the body 130 can extend lengthwise along the dispenser 10. The body 130 could be in vertical alignment with the dispenser 10.
- the locking member 120 can be tool free attachable to and detachable from a carrier 140, a carrier 140 being shown in Fig. 2.
- tool free attachable to and detachable from it is meant that the consumer can attach and detach the pertinent structure without using any tools that provide mechanical advantage. Rather, she can simply manipulate the thing to be manipulated with only her fingers. The consumer does not need to employ a screwdriver, pliers, hammer, or other implement that provides mechanical advantage to the force that can be provided by the consumer's hand.
- the consumer can attach and detach the locking member 120, and thereby the dispenser 10, from the carrier 140 without using any tools. That is, the locking member 120 can be attached to and detached from the carrier 140 by hand without the aid of any tool providing mechanical advantage.
- the locking member 120 can be slideably engageable with the carrier 140.
- the locking member 120 can have a T-shape and the carrier 140 can have a pair of slots 145 sized and dimensioned to receive the fins 140 of the T-shaped locking member 120.
- the consumer can slide the locking member 120 into the complementing carrier 140.
- the arms of the T-shaped locking member 120 can be slid into the complementing grooves 155 of the carrier 140.
- the carrier 140 can comprise an adhesive 150 attached to a side of the carrier 140 opposing the locking member 120.
- the adhesive 150 can connect the carrier 140 to the interior portion of a dishwasher (for example the walls, floor, ceiling, door, rack, spindle) or laundry washing machine (for example the drum, lid, back or front wall in a side entry laundry washing machine).
- the adhesive 150 needs to be strong enough to secure the dispenser 10 to the washing apparatus.
- the adhesive 150 needs to be chemically compatible with the wash liquor so that the adhesive 150 does not release the carrier 140 during washing.
- the dispensing apparatus 10 can comprise a magnet 160 operatively attached to the dispensing apparatus 10, as shown in Fig. 3. As shown in Fig. 3, a magnet 160 can be affixed to or integral with the dispenser 10 and be on the opposite side of the dispenser 10 from the source of light 20 and dispensing outlet 80. In use, the magnet 160 can serve to attach the dispensing apparatus 10 to a metal surface or component of the interior portion of the washing appliance.
- the dispenser 10 can be fabricated out of plastic or metal.
- the dispensing apparatus 10 can comprise one or more locking members 120 that are tool free attachable to and detachable from a rack 170 or other mobile component that is in the appliance, as shown in Fig. 4.
- the locking member 120 can be a hook 180.
- the locking member 120, or members 120 can be any structure that can be secured to a portion of a rack 170.
- the rack 170 can be that of the ordinary type found in dishwashers designed for in-home use. Typically the rack 170 has an open web like structure that allows wash liquor to be sprayed there through.
- the rack 170 can have one or more columns 172 or beams 174 interconnected with one another.
- the one or more hooks 180 can be sized and dimensioned to hang upon a rack 170.
- the locking member 120 can be a clip, expand-to-fit wedge, or any other structure that can be secured to the rack 170.
- the source of light 20 can generate a radiant flux of between about 1 mW to about 500
- the source of light 20 can generate a radiant flux of between about 1 mW to about 500 W, alternatively between about 1 W and about 250 W, alternatively between about 2 W to about 100 W.
- the source of light 20 can generate a radiant flux of between about 250 mW to about 500 W, alternatively about 500 mW to 250 W, alternatively about 1 W to about 100 W.
- the radiant flux of the source of light 20 is measured at the wavelength of maximum absorbance of its emission by the by the photoactive component.
- the source of light 20 can emit light having wavelengths between about 380 nm and about 800 nm.
- the treatment composition 100 can comprise a photoactive component that is a photoactive bleaching agent.
- a suitable photoactive bleaching agent can be titanium dioxide. Radiation in the visible spectrum of between about 380 nm and about 800 nm can activate the titanium dioxide for the purposes of photo-bleaching. Titanium dioxide can also perform as a photo-bleaching agent when radiated with radiation having wavelength between about 10 nm and about 1200 nm. Radiation in the ultraviolet spectrum may be less attractive due to potential human exposure issues.
- the treatment composition 100 can comprise titanium dioxide in a quantity ranging from about 0.0000001 % to about 25 % by weight of the treatment composition 100.
- the treatment composition 100 can comprise titanium dioxide in a quantity ranging from about 0.005 % to about 5 % by weight.
- the treatment composition 100 can comprise other components including, but not limited to, surfactants, perfumes, stabilizers, builders, bleaching agents, disinfectants, enzymes, graying inhibitors, brighteners, and the like.
- the titanium dioxide can have a particle size between about 2 nm and about 600 nm, or even between about 100 nm and about 400 nm, or event between about 2 nm and about 80 nm.
- the titanium dioxide can have a specific surface area between about 50 m 2 /g to about 400 m 2 /g.
- the bulk density of the titanium dioxide can be between about 100 g/1 to about 800 g/1.
- the titanium dioxide can be a carbon modified titanium dioxide having a carbon content of between about 0.01 % by weight to about 5 % by weight.
- the treatment composition 100 can be provided in a liquid, gel, powder, tablet, emulsion suspension, aerosol, or other form.
- the treatment composition 100 can comprise a photoactive component that is a photoactivator.
- the photoactivator can comprise a photoactive moiety and a hydrophilic moiety.
- the photoactivator can comprise less than about 35% by weight of the photoactive moiety.
- the photoactivator can have an absorption band between about 350 nm and about 750 nm, preferably between about 350 nm and about 420 nm.
- the photo activator can have the formula:
- R', R" and R'" may be -H or selected from a group of substituents that include a moiety selected from the group consisting of Oxygen, Nitrogen, Sulfur, Halogen and Hydrocarbon; at least one of R' , R" or R' " further comprises a hydrophilic moiety R;
- the source of light can be, by way of nonlimiting example, a self contained waterproof battery powered lamp having an on and off switch.
- the appliance can be a household dishwasher and the method can be carried out in a household dishwasher containing dishware in the cabinet of the dishwasher.
- the dishwasher can be a dishwasher sized for commercial/industrial use.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CA2935413A CA2935413A1 (en) | 2014-01-24 | 2015-01-22 | Method for treating laundry |
CN201580005544.XA CN105940151B (en) | 2014-01-24 | 2015-01-22 | Method for treating laundry |
JP2016548132A JP6200099B2 (en) | 2014-01-24 | 2015-01-22 | How to process laundry |
MX2016009537A MX2016009537A (en) | 2014-01-24 | 2015-01-22 | Method for treating laundry. |
EP15705131.9A EP3097226B1 (en) | 2014-01-24 | 2015-01-22 | Method for treating laundry |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201461931038P | 2014-01-24 | 2014-01-24 | |
US61/931,038 | 2014-01-24 |
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WO2015112684A1 true WO2015112684A1 (en) | 2015-07-30 |
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Family Applications (1)
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PCT/US2015/012407 WO2015112684A1 (en) | 2014-01-24 | 2015-01-22 | Method for treating laundry |
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US (1) | US20150211165A1 (en) |
EP (1) | EP3097226B1 (en) |
JP (1) | JP6200099B2 (en) |
CN (1) | CN105940151B (en) |
CA (1) | CA2935413A1 (en) |
MX (1) | MX2016009537A (en) |
WO (1) | WO2015112684A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD797387S1 (en) | 2014-08-19 | 2017-09-12 | Whirlpool Corporation | Topload washing appliance |
JP6636559B2 (en) * | 2018-04-02 | 2020-01-29 | 株式会社桑原 | Apparatus and method for bleaching clothing |
US11085147B2 (en) | 2018-09-27 | 2021-08-10 | Whirlpool Corporation | Sanitation device |
USD942715S1 (en) | 2018-10-08 | 2022-02-01 | Whirlpool Corporation | Fabric care appliance |
EP3805346A1 (en) * | 2019-10-08 | 2021-04-14 | The Procter & Gamble Company | A method of laundering fabric |
USD933910S1 (en) * | 2019-10-15 | 2021-10-19 | Wuxi Little Swan Electric Co., Ltd. | Washing machine |
Citations (7)
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- 2015-01-22 WO PCT/US2015/012407 patent/WO2015112684A1/en active Application Filing
- 2015-01-22 MX MX2016009537A patent/MX2016009537A/en unknown
- 2015-01-22 CA CA2935413A patent/CA2935413A1/en not_active Abandoned
- 2015-01-22 JP JP2016548132A patent/JP6200099B2/en not_active Expired - Fee Related
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Also Published As
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JP6200099B2 (en) | 2017-09-20 |
MX2016009537A (en) | 2016-10-26 |
CN105940151B (en) | 2020-02-21 |
US20150211165A1 (en) | 2015-07-30 |
EP3097226B1 (en) | 2020-07-08 |
EP3097226A1 (en) | 2016-11-30 |
CN105940151A (en) | 2016-09-14 |
CA2935413A1 (en) | 2015-07-30 |
JP2017506705A (en) | 2017-03-09 |
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