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
  • D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam 
  • D06F73/02—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam  having one or more treatment chambers
• • 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
  • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents

Definitions

• the present invention relates to methods useful for cleaning and refreshing fabrics in a non-immersion cleaning process. Temperature and relative humidity are controlled in the multi-step processes of this invention.
• One such in-home system for cleaning and refreshing garments comprises a substrate sheet containing various liquid or gelled cleaning agents, and a plastic bag. The garments are placed in the bag together with the sheet, and then tumbled in a conventional clothes dryer.
• multiple single-use flat sheets comprising a cleaning/refreshing agent and a single multi-use plastic bag are provided in a package.
• Steamer cabinets have also been utilized in the art to treat fabric articles with heavy doses of steam. Unfortunately, these high temperature, high relative humidity processes can have negative effects on fabric articles. In addition to the harsh effect on fabrics, a drying step is often required that puts even further strain on the fabrics. The drying step also requires additional time and energy, and often results in undesirable shrinkage. And finally, steamer cabinets are typically wasteful with respect to steam because it is only water.
• a method for treating at least one fabric article comprising the steps of: a) placing the fabric article in a container having an opening and at least one wall that defines an interior void space; b) raising the temperature and relative humidity of the air within the interior void space of the container to a predetermined first temperature and a predetermined first relative humidity for a predetermined first period of time; and c) changing at least one of the temperature or the relative humidity of the air within the interior void space of the container at the end of the first period of time to a predetermined second temperature and a predetermined second relative humidity for a predetermined second period of time.
• the fabrics are contacted with an aqueous composition prior to be placed in a container according to step a) defined below.
• vapor is used to raise the temperature and relative humidity of the air within the interior void space of the container, and more preferably the vent remains open at all times.
• the vapor introduced into the interior void space of the container comprises water and a perfume.
• a method for treating a fabric article comprising the steps of: a) placing the fabric article in a container having an opening and at least one wall that defines an interior void space; b) introducing ozone into the interior void space for a predetermined first period of time; and c) changing at least one of the temperature or the relative humidity of the air within the interior void space of the container at the end of the first period of time to a predetermined second temperature and a predetermined second humidity for a predetermined second period of time.
• the ozone can be generated by an ozone source, such as an ultraviolet lamp, or even a high voltage source, within the interior void space of the container.
• the level of ozone that is provided within the container is between 0.5 and 200ppm, preferably between 0.5 and 50ppm, more preferably between 0.5 and 20ppm. Levels lower than 0.5 ppm are not preferred as they would not provide sufficient bleaching performance and consequently not provide sufficient performance of the benefit linked to the bleach property.
• the present invention provides benefits over the prior art by defining the optimal process steps for cleaning and refreshing delicate fabric articles in an in-home non-immersion cleaning process.
• the methods of this invention can be carried out in any appropriate container, such as a plastic bag, a wardrobe, a cabinet, or a tumble dryer.
• the methods of this invention involve at least two distinct steps, and preferably three steps. It has been surprisingly found that the optimal conditions for deodorizing a fabric article differ from the conditions that are best for dewrinkling. Likewise, perfume deposition onto a fabric article requires a third set of conditions for optimal performance.
• temperature, relative humidity or both can be manipulated and controlled.
• one step of the process can involve the introduction of ozone into the container to neutralize odor causing chemicals on the fabric articles being cleaned and refreshed.
• the present invention provides a method of delivering an active ingredient, for example, perfume, to the fabrics being treated. Simultaneously, the methods herein minimize the amount of vapor delivered so that the actives are not wasted. And finally, the methods herein are designed to deliver only enough vapor to accomplish the fabric treatment process, without the need for additional mechanical drying.
• an active ingredient for example, perfume
• the present invention provides methods for cleaning and refreshing fabric articles in a domestic, non-immersion process.
• the methods require at least two steps, and preferably three.
• the methods can be carried out in any appropriate apparatus wherein temperature and relative humidity can be manipulated and controlled.
• one of the method steps involves the introduction of ozone into the container to neutralize odor causing chemicals on the fabric articles being cleaned and refreshed.
• a warm, humid environment inside the container volatilizes malodor components in the manner of a "steam distillation" process, and moistens fabrics and the soils thereon. This moistening of fabrics can loosen pre-set wrinkles, and because the fabric articles are hung in the container new wrinkles do not form. Proper selection of the amount of the vapor, and specifically the amount of water used in the process and, importantly, proper venting of the container in the present manner can minimize shrinkage of the fabrics. Moreover, if the container is not vented, the volatilized malodorous materials removed from the fabrics, which are not captured by the filter if present, can undesirably be redeposited thereon.
• Relative humidity is a well known concept to those in the fabric care arts. As used herein, “relative humidity” means the ratio of the actual amount of water vapor in the air to the greatest amount possible at the same temperature.
• Temperature and relative humidity controllers are well known to those skilled in the art, as are passive and active controllers.
• an “active” controller is a controller that reads an input and supplies feedback to the device being controlled and that device adjusts based on the feedback received.
• a “passive” controller is a controller that turns a device on or off, or opens or closes a device, based on a predetermined setting such as time. For example, a passive temperature controller would turn on a heating element or close a vent to increase the temperature in a given environment and after a certain period of time the heating element is turned off or the vent is opened.
• an active temperature controller reads the temperature and if, for example, the temperature is too low, the power to the heating element is increased or the vent is closed to increase the temperature.
• the fabric article should at least be substantially free of odor and wrinkles after a cleaning and refreshing operation. It is often preferred that the article be perfumed to give it a pleasant odor, and it should be free of localized stains.
• the methods of this invention require at least two steps designed toward deodorizing, dewrinkling and/or perfume deposition on a fabric article. Additionally, a manual spot removal process for removing localized stains is provided, but the spot removal process is conducted outside of the apparatus The conditions for each of these methods steps are described in greater detail below.
• Deodorization must be distinguished from odor-masking, which involves applying a pleasant scent to a fabric to mask, or cover up the odors on the fabric.
• Deodorization involves the actual removal or neutralization of malodor causing chemicals. When the malodor causing constituents are removed or neutralized, the fabric article should have little or no residual odor.
• This step of the process can be carried out with ozone, which neutralizes odors, or with high temperatures and venting, and/or by filter capturing, which removes the odor causing constituents.
• ozone which neutralizes odors, or with high temperatures and venting, and/or by filter capturing, which removes the odor causing constituents.
• the deodorization step is described herein as the first step as a matter of convenience. It is understood that the deodorization and dewrinkling steps can be carried out in any order. If a perfume deposition step is employed, it necessarily should follow the deodorization step, so that the perfume is not stripped off of the fabric immediately after it is laid down.
• the first temperature should be at least about 45°C, preferably at least about 60°C, and most preferably at least about 70°C and the first relative humidity should be least about 20%.
• the vent comprises a filter so that the odorous emanations do not enter the environment outside of the container.
• ozone can be introduced into the container from any appropriate source, such as an ultraviolet lamp.
• ozone sources can be used and they can be placed in any convenient place in, or adjacent the exterior of the container.
• the ozone source must be sized according to the volume of the container with consideration for the surface area of the fabric articles being cleaned and refreshed. Those skilled in the art will know what type and size of equipment to use for a given container.
• the second step of the present invention is directed to dewrinkling, which requires relatively high temperature and relative humidity. Good air circulation is beneficial to the dewrinkling step, but not necessary.
• RH 2 is preferably of at least 50%, preferably of at least 75%, more preferably of at least about 85%, and even more preferably at least about 90%.
• the second temperature is less than about 90°C, more preferably less than about 80°C, and most preferably less than about 70°C.
• the process time that is, the second time, can be from about 2 minutes to about 20 minutes, preferably from about 5 minutes to about 15 minutes, and even more preferably from about 8 minutes to about 12 minutes.
• a third step which involves a gradual cool down of the interior void space.
• the amount of vapor that the air can retain in the air decreases, and when the air becomes saturated the vapors begin to condense.
• the active ingredients such as perfume, remain behind.
• the methods steps of this invention are designed to deliver actives without undue waste and without saturating the fabrics to the point where they need additional drying.
• the temperature within the interior void space decreases to a third temperature wherein the third temperature is less than about 45°C, preferably less than about 40°C, and more preferably less than about 35°C.
• This third step can last for a third period of time, which can be from about 2 minutes to about 20 minutes, preferably from about 3 minutes to about 10 minutes, and even more preferably from about 3 minutes to about 5 minutes.
• the vapor inside the container is preferably a cleaning and refreshment composition.
• the cleaning refreshment composition can be added to the container directly, via a sheet/substrate, in a cartridge or any other means that will be known to those skilled in the art.
• the cleaning and refreshment composition is in a cartridge that is introduced into the interior void space of the container and the cleaning and refreshment composition is released from the cartridge into the interior void space of the container.
• the methods of this invention can be conducted in any appropriate apparatus.
• Such apparatuses require a container that substantially encloses the fabric articles being cleaned and refreshed.
• substantially encloses it is meant that the fabric articles are enclosed in the container, but that the container can, and preferably will, include one or more vents.
• the container must have an opening to access the fabric articles, and preferably, there is a bar, hook or other device on which to hang the fabric articles.
• the garments hung in treatment apparatus can also be weighted or stretched to improve wrinkle reduction. Hanging weights and stretching devices will be known to those skilled in the art.
• the garments to be treated are mechanically stretched after placing them into the container and before starting the process.
• Preferred stretching systems include weighted clamps as well as light weight compactable or retractible stretching systems, wherein the system comprises a tensioning device like a spring.
• the latter systems have the benefit of not adding extra weight to the cleaning and refreshing apparatus, along with the possibility of adjusting tensioning force and direction as required.
• these systems are mounted inside the container at its bottom.
• One example of such as system is a rollerblind that is conventionally used as sunfilter for cars and commercially available from Halfords. This system is a rollerblind which can be extended or compacted by means of a roll-up spring mechanism. Only slight modification of this system are needed to adapt it to the tensioning of garment.
• One preferred adaptation involves attaching the housing of this system at the bottom of the apparatus and providing one or more clamp at the other side so that the clamping and thus the stretching or tensioning of the garment in the apparatus is obtained.
• the tension of the spring can also be adjusted to the desired stretching force for a given garment.
• the size of the clamp can vary so that more than one clamp are attached to this system. Still, another variation involves having only one clamp which run along or partly along the blind tensioning system located opposite the housing of the system.
• the container preferably has only one wall configured like an egg shell. It has been found that the vapor, and subsequently the active ingredients, preferentially condense in the comers and along the sharp edges of a more conventional rectangular shaped cabinet. This is not to say that the methods of this invention cannot be conducted in rectangular cabinets; they can. But the fewer sharp edges and comers the cabinet has, the more efficient it is. Thus, cabinets, wardrobes, and garment bags are all appropriate for use in the present invention. Moreover, a common tumble dryer may be an appropriate container, but these apparatuses do not normally have humidity controllers, nor do they have the ability to program a multi-step process with respect to both temperature and humidity. Thus, with some additional programming and controllers, a common tumble dryer could be used for the methods of this invention.
• the containers of this invention preferably comprise: a vent and/or filter; a heating element, which is capable of heating liquids to produce vapors and which can run dry to heat air; a humidity provider; and an air circulation device, for example, a fan.
• the container additionally comprises an active temperature controller capable of changing and maintaining the air temperature within the interior void space of the container; a passive humidity controller capable of changing and maintaining the relative humidity of the air within the interior void space of the container, and/or a humidity sink like a condenser.
• the air circulation device is a fan and the fan inlet is within the interior void space of the container so that at least a portion of the air within the void space of the container is recirculated.
• it preferred to have air velocities around the garment between 0.05 to 10 m/s, more preferably between 0.1 and 5, most preferably between 0.5 and 2 m.s-1.
• a filter in, or adjacent the exterior of the container
• the water and actives can be added to the container in any appropriate way.
• the composition can be poured into the bag, poured into a reservoir that feeds into the heating element/humidifier, canisters can be used to inject the composition, or an absorbent substrate saturated with the composition can be placed in the bag.
• Substrates and compositions suitable for use in the methods of this invention are described in greater detail below. It is understood that those skilled in the art will know of other methods of adding actives to the container and those methods are within the scope of this invention.
• the cleaning/refreshment composition preferably comprises water and optionally a member selected from the group consisting of surfactants, perfumes, preservatives, bleaches, auxiliary cleaning agents, shrinkage reducing compositions, organic solvents and mixtures thereof.
• the preferred organic solvents are glycol ethers, specifically, methoxy propoxy propanol, ethoxy propoxy propanol, propoxy propoxy propanol, butoxy propoxy propanol, butoxy propanol, ethanol, isopropanol and mixtures thereof.
• Fabric shrinkage reducing compositions that are suitable for use in the present invention are selected from the group consisting of ethylene glycol, all isomers of propanediol, butanediol, pentanediol, hexanediol and mixtures thereof. More preferably, the fabric shrinkage reducing compositions are selected from the group consisting of neopentyl glycol, polyethylene glycol, 1,2-propanediol, 1,3-butanediol, 1-octanol and mixtures thereof.
• the surfactant is preferably a nonionic surfactant, such as an ethoxylated alcohol or ethoxylated alkyl phenol, and is present at up to about 2%, by weight of the cleaning/refreshment composition.
• Typical fabric cleaning/refreshment compositions herein can comprise at least about 80%, by weight, water, preferably at least about 90%, and more preferably at least about 95% water.
• shrinkage reducing compositions for use in this invention can be found in co-pending U.S. Provisional Application No. 60/097,596, entitled “Cleaning Compositions that Reduce Fabric Shrinkage", which was filed by Strang and Siklosi, on August, 24, 1998. The entire disclosure of the Strang and Siklosi application is incorporated herein by reference.
• the cleaning/refreshment composition can be used to pre-treat the fabrics before their placement into the container defined in step a) of the present invention.
• this pre-treatment of the fabrics has been found highly beneficial for the removal of clay like horse mud as well as of creamy or pasty deodorant stains that stick to localised part of the fabrics articles, e.g. fabric underarm.
• this pre-treatment step has also been found beneficial for improving the deodorising as well as the dewrinkling performance of the apparatus on the treated fabrics.
• a method for treating the fabrics whereby the fabrics are contacted with a cleaning/refreshing composition as defined herein prior to being placed in the container defined in step a).
• the contacting occurs by spraying the fabrics with a handspray bottle commercially available under the reference 7292458 for the 1000ml and 7292457 for the 500ml from VEL or aerosol spray like the aluminium aerosol cans with polyethylene coating and a 18 bar pressure resistance as commercially available from Boxal part of the Algroup Wheaton.
• Suitable valves for the cans are aluminium cup spray valves from Seaquist.
• the filling of the can by propellant is done with nitrogen at 10 bar for the initial pressure filling while the cans are filled with the pre-treatment composition up to 60% of the can total volume.
• Typical disclosure of such spray dispenser can be found in WO 96/04940 page 19 line 21 to page 22 line 27.
• cyclodextrin can be used, in particular ⁇ -cyclodextrin like the ⁇ -hydroxypropyl cyclodextrin or the ⁇ -methylated cyclodextrin, while for improved dewrinkling, lubricant like the D5 cyclomethicone from Dow Coming or diester quaternary ammonium compound like di(tallowyloxyethyl)dimethyl ammonium in the cleaning/refreshment composition.
• Typical levels of such cyclodextrin are of from 0.01, preferably of from 0.1% to 5% by weight.
• the cleaning/refreshment composition can be releasably absorbed in an absorbent substrate, herein after referred to as a "substrate".
• the substrate releasably contains the composition.
• “releasably contains” means that the composition is effectively released from the substrate onto the soiled fabrics as part of the cleaning and fabric refreshment processes herein. This release occurs mainly by volatilization of the composition due to the heat from the supplemental heat source.
• the substrate can be in any desired form, such as powders, flakes, shreds, and the like. However, it is highly preferred that the substrate be in the form of an integral pad or "sheet” that substantially maintains its structural integrity throughout the process.
• the substrates and sheets of this invention are sometimes referred to in the literature as “carriers” or “absorbent carrier sheets”; it is understood that all of these labels refer to liquid absorbing materials that can be used to conveniently transport liquids.
• carriers or "absorbent carrier sheets”; it is understood that all of these labels refer to liquid absorbing materials that can be used to conveniently transport liquids.
• Such substrates are described in detail in U.S. Patent No. 5,789,368, to You et al. which was incorporated herein by reference above.
• the manufacture of these sheets forms no part of this invention and is already disclosed in the literature. See, for example, U.S. Patents 5,009,747, Viazmensky, et al., April 23, 1991 and 5,292,581, Vi
• the substrate is intended to contain a sufficient amount of the cleaning/refreshment composition to be effective for the intended purpose.
• the capacity of the substrate for such a composition will vary according to the intended usage.
• the size of the substrate should not be so large as to be unhandy for the user.
• the dimensions of the substrate will be sufficient to provide a macroscopic surface area (both sides of the substrate) of at least about 360 cm 2 , preferably in the range from about 360 cm 2 to about 3000 cm 2 .
• a generally rectangular substrate may have the dimensions (X-direction) of from about 10 cm to about 35 cm, and (Y-direction) of from about 18 cm to about 45 cm.
• the substrate is either a dark material, or is covered with a dark material, such as a black fabric. It is well known that dark materials absorb heat better than whiter materials. Thus, a dark substrate would tend to absorb more heat and volatilize more cleaning and refreshing composition if, for example, solar radiation is used as the supplemental heat source.
• the substrate can optionally be covered with a fibrous, preferably heat resistant and, most preferably, hydrophobic, coversheet as described in detail in U.S. Patent No. 5,789,368, to You et al. which was incorporated herein by reference above.
• a fibrous, preferably heat resistant and, most preferably, hydrophobic, coversheet as described in detail in U.S. Patent No. 5,789,368, to You et al. which was incorporated herein by reference above.
• co-pending U.S. provisional application 60/077,556, which was filed on March 11, 1998, in the name of Wise et al. describes certain improvements to the coversheets of this invention. The entire disclosure of the Wise et al. application is incorporated herein by reference. Suitable combinations of the coversheets described in You et al. with the improvements described in Wise et al. can be employed, according to the desires of the manufacturer, without departing from the spirit and scope of the invention.
• the user of the present process can be provided with various spot cleaning compositions to use in the optional pre-spotting procedure of this invention.
• These compositions are used to remove localized stains from the fabrics being treated, either before or after the cleaning and refreshing process defined herein.
• the spot cleaning composition must be compatible with the fabric being treated. That is, no meaningful amount of dye should be removed from the fabric during the spot treatment and the spot cleaning composition should leave no visible stains on the fabric. Therefore, in a preferred aspect of this invention there are provided spot cleaning compositions which are substantially free of materials that leave visible residues on the treated fabrics.
• compositions are formulated to contain the highest level of volatile materials possible, preferably water, typically about 95%, preferably about 97.7%, and surfactant at levels of about 0.1% to about 0.7%.
• a preferred spot cleaning composition will also contain a cleaning solvent such as butoxy propoxy propanol (BPP) at a low, but effective, level, typically about 1% to about 4%, preferably about 2%.
• BPP butoxy propoxy propanol
• a treatment member is provided to assist in removing localized stains from fabrics.
• the spot cleaning composition is provided in a dispenser, such as a bottle, and the dispenser has a distal tip that can serve as the treatment member.
• the treatment member can comprise an absorbent base material which can be, for example, a natural or synthetic sponge, an absorbent cellulosic sheet or pad, or the like. In contact with and extending outward from this base material can be multiple protrusions. Specific examples of treatment members can be found in U.S. Patent No. 5,789,368, to You et al. which was incorporated herein by reference above.
• An absorbent stain receiving article can optionally be used in the optional pre-spotting operations herein.
• stain receivers can be any absorbent material which imbibes the liquid composition used in the pre-spotting operation.
• Disposable paper towels, cloth towels such as BOUNTYTM brand towels, clean rags, etc. can be used.
• the stain receiver is designed specifically to "wick” or "draw” the liquid compositions away from the stained area.
• One preferred type of stain receiver consists of a nonwoven pad, such as a thermally bonded air laid fabric (“TBAL").
• poly-HIPE polymerized water-in-oil emulsion
• the manufacture of polymeric foam is very extensively described in the patent literature; see, for example: U.S. Patent No. 5,260,345 to DesMarais, Stone, Thompson, Young, LaVon and Dyer, issued November 9, 1993; U.S. Patent No. 5,550,167 to DesMarais, issued August 27, 1996, and U.S. 5,650,222 to DesMarais et al., issued July 22, 1997, all incorporated herein by reference.
• Typical conditions for forming the polymeric foams of the present invention are described in co-pending U.S.
• the various stain receivers described herein, and described in the references incorporated herein by reference, preferably comprise a liquid impermeable backsheet.
• the backsheet can be made of, for example, a thin layer of polypropylene, polyethylene and the like.
• the backsheet provides protection for the surface that the stain receiver rests on from the spot cleaning composition.
• spot cleaning processes are typically performed on a hard surface, such as a table top.
• the stain receiver is placed on the table and the fabric to be treated in placed on the stain receiver.
• Spot cleaning composition is applied to the stained area of the fabric and then drawn into the stain receiver. But in the absence of a back sheet, the spot cleaning composition can leak onto the table top, possibly causing damage thereto.
• the bag can be thought of as shaped like an egg shell with the top and bottom cut off.
• the container has a door for accessing the interior, and the door is closed with a zipper.
• a small slit near the bottom of the bag serves as the vent and the vent remains open at all times during this process.
• a fan On the interior of the bag is a fan, a heating element, a thermocouple and a reservoir that is in fluid communication with the heating element.
• a heating element Approximately 100 to 125 mls of a composition comprising approximately 99% water and 1% perfume, by weight, is poured into the reservoir and the door is closed.
• An exterior "on/off" switch is turned on to begin the fabric refreshment process.
• the switch is connected to a programmable microprocessor that controls the multi-step process.
• the heating element is turned off and the interior of the bag cools naturally to about 45°C in less than about 10 minutes.
• the fan is turned off automatically, and an indicator light signals that the process is complete.
• the jackets are removed and they are substantially wrinkle free, deodorized and ready to wear.
• a fan On the interior of the bag is a fan, an ultra violet lamp, a heating element, a thermocouple and a receptacle for receiving a cartridge that contains a cleaning and refreshment composition.
• the receptacle is in fluid communication with the heating element.
• the cleaning and refreshment composition comprises approximately 100 to 125 mls of a composition comprising approximately 99% water and 1% perfume, by weight.
• An exterior "on/off" switch is turned on to begin the fabric refreshment process.
• the switch is connected to a programmable microprocessor that controls the multi-step process.
• First, the ultraviolet lamp is turned on to produce ozone. The lamp remains lit for approximately 10 minutes.
• the fan is optionally run during this first step.
• For the second step the temperature is raised to about 50°C and the relative humidity is raised to greater than about 95%. This is accomplished through the introduction of the vaporized cleaning and refreshment composition. The fan continues to run during this second step, which lasts for about 7 to 12 minutes.
• the heating element is turned off and the interior of the bag cools naturally to about 45°C in less than about 10 minutes.
• the fan is turned off automatically, and an indicator light signals that the process is complete.
• the jackets are removed and they are substantially wrinkle free, deodorized and ready to wear.
• cleaning and refreshment compositions of this invention can comprise water and perfume only, additional fabric treatment components can also be included.
• fabric cleaning/refreshment compositions according to the present invention for use in the methods described herein, are prepared as follows: Ingredient % (wt.) Sheet Cartridge Emulsifier (TWEEN 20) 0.5 0 Perfume 0.5 0.5 KATHON® 0.0003 0 Sodium Benzoate 0.1 0 Water Balance Balance
• compositions for use in the methods of this invention are as follows.
• Surfactant* 0.5 0.05-2.0
• Ethanol or Isopropanol 0
• Solvent e.g. BPP
• Hydrogen peroxide 0
• Optional to 4% pH range from about 6 to about 8.
• a spot cleaning composition for use in the present invention preferably with a dispenser as defined above, and with a TBAL or poly-HIPE foam stain receiver, is prepared as follows: INGREDIENT Anionic Composition (%) Hydrogen peroxide 1.000 Amino tris(methylene phosphonic acid) 0.0400 Butoxypropoxypropanol (BPP) 2.000 NH 4 Coconut E 1 S 0.285 Dodecyldimethylamine oxide 0.031 Magnesium chloride 0.018 Magnesium sulfate 0.019 Hydrotrope, perfume, other minors, 0.101 Kathon preservative 0.0003 Water (deionized or distilled) 96.5 Target pH 6.0
• H 2 O 2 -containing pre-spotting compositions comprise the anionic or nonionic surfactant in an amount (by weight of composition) which is less than the amount of H 2 O 2 .
• the weight ratio of surfactant:H 2 O 2 is in the range of about 1:10 to about 1:1.5, most preferably about 1:4 to about 1:3.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Detergent Compositions (AREA)
• Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
• Treatment Of Fiber Materials (AREA)

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• 2000
  • 2000-02-07 ES ES00870018T patent/ES2234558T3/es not_active Expired - Lifetime
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  • 2000-02-07 DE DE60017542T patent/DE60017542T2/de not_active Expired - Lifetime
  • 2000-03-01 CZ CZ20013156A patent/CZ20013156A3/cs unknown
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