EP4201531A1 - Distributeur de mousse actionné manuellement pour solutions moussantes - Google Patents
Distributeur de mousse actionné manuellement pour solutions moussantes Download PDFInfo
- Publication number
- EP4201531A1 EP4201531A1 EP21217299.3A EP21217299A EP4201531A1 EP 4201531 A1 EP4201531 A1 EP 4201531A1 EP 21217299 A EP21217299 A EP 21217299A EP 4201531 A1 EP4201531 A1 EP 4201531A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foam
- chamber
- bottle
- inlet
- dispenser according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006260 foam Substances 0.000 title claims abstract description 237
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 238000005187 foaming Methods 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920002457 flexible plastic Polymers 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 27
- 230000001476 alcoholic effect Effects 0.000 claims description 26
- 239000000645 desinfectant Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 28
- 239000000243 solution Substances 0.000 description 25
- 239000000203 mixture Substances 0.000 description 19
- 239000004094 surface-active agent Substances 0.000 description 15
- 239000000126 substance Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000007906 compression Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 239000013543 active substance Substances 0.000 description 4
- 239000012459 cleaning agent Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000004872 foam stabilizing agent Substances 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000003906 humectant Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000004909 Moisturizer Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001333 moisturizer Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003641 microbiacidal effect Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
- B05B11/042—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
- B05B11/043—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
- B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
- B05B7/0031—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
- B05B7/0037—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
Definitions
- the invention relates to a foam dispenser.
- a foam dispenser This includes a plastic bottle made of flexible plastic with a bottle opening, a closure cap that closes the bottle opening and has a dispensing opening for a foam, a foam generating device for foaming a solution, comprising a chamber with at least one wall, at least one inlet for air in a wall of the chamber and at least one inlet for liquid in a wall of the chamber and at least one foam body which is arranged in the chamber, the foam generating device being arranged in or connected to the closure cap, and a riser pipe which is arranged inside the bottle and connected to an inlet.
- Disinfectants or cleaning agents are often alcoholic solutions, since alcohols have good microbiocidal effectiveness, depending on the chain length. Such agents are offered as a solution, gel or foam. Alcoholic solutions are difficult to foam because alcohol is a defoaming agent. Foaming of alcohol-based products is used to create foam in hand-operated dispensers or automatic dispensers a foam generating device is used, which ensures that a foam is produced when the liquid and air are mixed.
- the dispenser systems especially in the case of mechanical dispensers, often consist of a large number of sensitive components and are therefore complex to produce and more expensive.
- GB 1 478 607 A describes a hand-operated apparatus for making and dispensing foam with a siphon-type bottle.
- a rigid porous body is placed in the bottle in which liquid and air are mixed.
- the air flow is regulated by a valve.
- the object of the invention is to provide a hand-operated foam dispenser that overcomes the disadvantages known from the prior art and, in particular, can be produced inexpensively with few components and enables alcoholic solutions to be foamed.
- the foam body consists of an open-cell foam and the foam body is compressed in the chamber.
- foam body means at least one foam body, i.e. when a foam body is described, exactly one foam body or several foam bodies are included.
- the foam dispenser of the invention is a manual foam dispenser which is hand-operated, i.e. the foam is generated by squeezing the bottle with the hand.
- the plastic bottle is therefore formed from a flexible plastic so that it can be squeezed.
- the plastic bottle is preferably made of polypropylene (PP), polyethylene terephthalate (PET), soft polyethylene (Low Density Polyethylene, LDPE), hard polyethylene (High Density Polyethylene, HDPE) or a mixture thereof, particularly preferably of HDPE and LDPE.
- the foam dispenser of the invention preferably contains an alcoholic or non-alcoholic mixture, which is typically a solution.
- the mixture contains at least one surfactant or surface-active substance that acts as a foamable substance.
- the surfactant is a silicone surfactant.
- the tenside or the surface-active substance is preferably contained in the mixture in an amount of 0.2 to 5% by weight, particularly preferably 0.2 to 2.5% by weight.
- the foam dispenser according to the invention can be used for cleaning agents for skin and hands, for surfaces or instruments, or for disinfectants for skin or hands, for surfaces or instruments, for wound cleaning agents or wound disinfectants or for cosmetics, such as hair or skin cleaning agents or hair or skin care products be used.
- the open-cell foam preferably consists of a polymeric material, particularly preferably polyurethane (PUR) or acrylonitrile butadiene rubber, also known as nitrile butadiene rubber (NBR).
- PUR polyurethane
- NBR nitrile butadiene rubber
- the open-cell foam in the chamber preferably has a density greater than 0.03 g/cm 3 .
- the density is determined by measuring the outer dimensions of the foam body, determining the weight of the foam body and calculating the density from the weight and volume determined. The measurement or determination of the outer dimensions of the foam body is based on its dimensions in the chamber.
- the density thus refers to the density of the foam body placed in the chamber.
- the foam placed in the chamber preferably has a density of at least 0.035 g/cm 3 , particularly preferably at least 0.045 g/cm 3 . More preferably, the foam placed in the chamber has a density of at most 0.08 g/cm 3 , preferably at most 0.06 g/cm 3 .
- the foam in the chamber preferably has a density of more than 0.03 g/cm 3 and at most 0.06 g/cm 3 .
- the cell count is preferably determined microscopically.
- the foam In the uncompressed state, the foam preferably has an average pore size of from 0.3 mm to 0.9 mm, measured according to ASTM D 3576-2004, preferably from 0.4 mm to 0.8 mm.
- the chamber can have a volume of 1 cm 3 to 5 cm 3 , preferably 1 cm 3 to 3 cm 3 and particularly preferably 1 cm 3 to 2 cm 3 .
- the chamber has a volume of 1.4 cm 3 to 2 cm 3 .
- the foam body or the total number of foam bodies fill the volume of the chamber preferably at least 80%, more preferably at least 85%, even more preferably at least 90%, particularly preferably at least 95% and in particular essentially completely.
- the chamber is at least partially cylindrical and the foam body is cylindrical.
- the chamber contains a plurality of foam bodies, these may be shaped as sections of a cylinder, such as two half-cylinders, or as pie slices, again having the overall shape of a cylinder.
- all foam bodies preferably consist of the same foam material. This has the advantage that the production of the foam dispenser is simpler and more economical since different materials do not have to be kept on hand. In addition, the same mixing effect is achieved in all areas and a uniform foam is produced if the foam bodies are made of the same material.
- the chamber which is preferably at least partially cylindrical, preferably has a chamber floor and at least one chamber wall that extends from the chamber floor in the direction of the top of the closure cap, with at least one inlet being arranged in the chamber floor and at least one inlet being arranged in a chamber wall.
- the chamber floor is circular, the chamber has a curved chamber wall.
- the chamber has only a single inlet in the chamber floor, which is connected to the riser pipe and, when used overhead, preferably forms the inlet for air.
- An air chamber, from which the air flows through the inlet into the chamber, can be arranged in a connecting piece between the end of the riser pipe and the inlet.
- the chamber preferably has at least two, preferably three to six, particularly preferably three or four inlets in the chamber wall or the side wall of the chamber, the inlets preferably being arranged at equal distances from one another and preferably forming the inlet for liquid when used overhead .
- the air inlet is the inlet which, in use, connects to an air reservoir in the bottle.
- the liquid inlet is the inlet which, in use, is connected to a liquid reservoir.
- the riser which is arranged inside the bottle, is preferably connected to an inlet in the bottom of the chamber and preferably forms the inlet for air.
- the chamber is at least partially designed as a double-walled hollow cylinder.
- the double-walled hollow cylinder has an inner and an outer cylinder, which are arranged concentrically to one another in the overlapping area and are preferably arranged offset relative to their longitudinal axis or have different lengths, so that the area on the chamber floor has only one wall.
- the foam body is placed in the inner cylinder.
- the inlets in the side wall of the chamber are preferably located only in the outer cylinder, more preferably only in the lower, non-double-walled part of the chamber.
- the inner hollow cylinder can be connected to the closure cap and e.g. be formed in one piece with the closure cap.
- the embodiment of the chamber as a double-walled hollow cylinder is particularly advantageous because the liquid flow is guided by the double-walled cylinder.
- the liquid first gets into the outer of the two hollow cylinders and thus into the foam-free area and is then transported to the lower opening of the inner hollow cylinder.
- it flows into the foam body from below, so that the entire length of the foam body can be used to produce foam.
- the foam dispenser is easier to assemble, since the foam body is already in position when screwing or clamping the closure cap and does not have to be fixed first during the screwing or clamping process. It is also easily possible to replace the foam body by replacing only the inner cylinder of the chamber or the cap connected to the inner cylinder.
- the foam dispenser of the present invention can be used to produce foam either upside down, i.e., with the bottle turned upside down with the bottom of the bottle pointing upwards, or upright, with the bottle bottom pointing downwards.
- Up means vertically up to the ceiling and down means vertically down to the floor.
- the bottle can also be held at a slight angle during use, this is also included in upside down and upright.
- the liquid is located inside the chamber of the foam body made of open-cell foam, which has cavities in which air and liquid are mixed with each other and a foam is thereby generated.
- a portion of the chamber in which at least one inlet is located is empty and does not contain a foam body. Air and liquid are preferably already partially mixed after entering the chamber before they are transported premixed into the foam body.
- the foam generation occurs as follows:
- the chamber with the foam body has one or more inlets which are below the liquid level inside the bottle in the upside down position.
- the riser tube is at the top of the chamber when the bottle is inverted and terminates in the headspace of the bottle above the liquid level.
- the air is pushed down through the riser tube.
- the liquid is sucked out of the bottle through the inlets into the chamber. Air and liquid are mixed in the pores of the open-cell foam and the foam is discharged downwards through the outlet opening as a foam.
- the opening for the foam outlet is not directed vertically upwards, but rather the foam is discharged via a spout running in a lateral direction.
- the bottle is preferably of a size that is easy to hold with one hand.
- the bottle has, for example, a volume of 50 ml to 500 ml.
- the bottle preferably has a volume of 100 ml to 250 ml, in particular 100 ml to 150 ml.
- the air inlet preferably has a diameter of 1.0 mm to 1.4 mm.
- the liquid inlet preferably has a diameter of 0.6 mm to 0.8 mm.
- the ratio of the size of the inlet opening(s) for air to the size of the inlet opening(s) for liquid is preferably 1:0.9 to 1:1.5, particularly preferably 1:0.9 to 1:1.1.
- foaming works both upside down and upright.
- the ratio of the overall size of air inlets and liquid inlets has an impact on foam formation.
- the diameter of the air inlet opening must not be too large and the proportion of air must not be too high, otherwise good foam will not form.
- the foam generating device is designed as an insert with a flange.
- the flange is placed on the top edge of the bottle neck, with the cap being attached to the neck of the bottle and fixing the liner.
- closure cap and foam-generating device are designed in one piece and the closure cap with the foam-generating device is attached to the neck of the bottle, preferably screwed on or crimped.
- the foam-generating device is designed as an insert which snaps into the closure cap, is glued to the closure cap or welded to the closure cap, the closure cap being attached to the insert on a neck of the bottle, preferably being screwed on or crimped.
- the closure cap can have a conventional design and can, for example, comprise a hinged lid or a protective cap or be designed as a pull-type closure. It also usually has a fastening device that attaches it to the neck of the bottle, such as a screw thread or snap-on cap.
- the foam dispenser according to the invention can be designed as a disposable product for disposal after the liquid has been emptied, or as a refillable reusable product.
- the alcoholic or non-alcoholic solution can be refillable and/or the foam body can be exchangeable.
- the foam dispenser according to the invention can be produced inexpensively since it is made up of only a few components.
- a Foam generation is also possible with alcoholic solutions and both when used upside down and upright.
- the foam is generated according to the invention with a hand-operated foam dispenser with few components. Due to the compact design without a motor, electrical parts or valves for regulation, cost-effective production is possible and easy, intuitive and trouble-free handling is provided.
- An alcoholic disinfectant can be applied as a foam with the foam dispenser according to the invention. Due to its consistency, foam has the advantage over liquids that it can be better dosed and distributed. For example, while a liquid hand disinfectant flows quickly from the hand when it is removed and therefore not only gets on the hand but also on the floor, the foam flows more slowly and can be distributed more easily and drip-free on the hands.
- the subject matter of the invention is also the use of a foam dispenser according to the invention for foaming an alcoholic solution, preferably an alcoholic disinfectant.
- the outer dimensions of a foam sample are first measured and the volume is calculated from the outer dimensions.
- the density of the uncompressed foam is thus determined according to ISO 845 (g/cm 3 ) or ASTM D 3574-11A (lb/ft 3 ) standards. Since the foam body is compressed in the foam dispenser chamber, the density increases accordingly by the degree of compression. In order to calculate the density, reference is then made here to the volume which the foam body has in the chamber in the compressed state.
- the number of pores is determined microscopically. To do this, a straight line is drawn on one surface of the foam and the number of pores is counted over a distance of 1 inch along this distance.
- the pore size is determined according to ASTM D 3576-2004. For this purpose, a thin layer of a defined size is cut from foam and placed in a special projector. The projector projects the sample along with a reference line. The length of the reference line is given in millimeters. The number of cells intersected by the reference line is counted. The mean pore size is calculated from the length of the reference line and the number of pores.
- FIG 1 shows a foam dispenser according to the invention used for foam generation in an upside down position.
- the foam dispenser 1 includes a bottle 2 with a closure cap 3 screwed onto the bottle.
- a dispensing opening 4 is arranged on the upper side of the closure cap 3 .
- Inside the cap is a foam generating device (not shown here).
- FIG 2 shows a sectional view of a foam dispenser according to the invention in a first embodiment.
- the foam dispenser 1 is designed to generate foam in an upside down position.
- the foam dispenser includes a bottle 2 which is closed with a cap 3 .
- the cap is a screw cap with an internal thread 21 designed that is screwed to the external thread 22 on the bottle neck.
- a chamber 5 is arranged in the closure cap 3, in which three foam bodies 9 are placed one above the other.
- the foam bodies 9 each lie against the wall 6 of the chamber 5 so that no liquid can flow past the foam bodies 9 to the dispensing opening 4 .
- At the bottom of the chamber 5 there is an inlet 7 which is connected to a riser pipe 10 .
- FIG 3 shows a section of a foam dispenser in a second embodiment.
- the foam dispenser 1 according to figure 3 is also designed to produce foam in an upside down position.
- the chamber 5 is double-walled in this embodiment and has the shape of a double-walled hollow cylinder.
- the chamber has an inner cylinder 13 and an outer cylinder 12 which are arranged concentrically to one another in the overlapping area.
- the inner cylinder 13 is connected to the casing 15 of the closure cap 3 and is made in one piece together with it.
- the three foam bodies 9 are arranged one above the other in the inner cylinder 13 and are each flush with the wall of the inner cylinder 13 so that no liquid can flow past the foam body 9 .
- the inner cylinder 13 extends to the discharge opening so that the foam is discharged through the discharge opening as it leaves the inner cylinder.
- the inner cylinder 13 has a shorter length than the outer cylinder 12 .
- the outer cylinder 12 is connected to the chamber floor 14 and has a flange 23 on its upper side.
- the inlet 7 which is fluidically connected to the riser pipe 10 , is located in the chamber floor 14 .
- the riser pipe 10 is held in a riser pipe holder 24 .
- FIG 4 shows a detail of a foam dispenser in a third embodiment.
- the foam dispenser 1 according to figure 4 is also designed to produce foam in an upside down position.
- the chamber 5 is also double-walled in this embodiment and has the shape of a double-walled hollow cylinder.
- the foam dispenser according to figure 4 differs from the foam dispenser according to figure 3 by the position of the inlets 8 in the wall 6 of the chamber.
- the inlets 8 are in the side wall 6 of the chamber above the chamber floor 14 and at the level of the inner cylinder 13, so that during use the liquid first flows into the space 16 between the two cylinders, mixes with the air from the inlet 7 in the area under the inner cylinder 13 and is transported from there into the foam body 9 .
- FIG 6 shows a further embodiment of a foam dispenser 1 according to the invention in a perspective view.
- the foam dispenser 1 is intended for foam generation in an upright position and therefore has a dispensing device 25 in the form of a spout on the closure cap 3 through which the foam is guided to the side after emerging from the dispensing opening 4 .
- FIG 7 shows a section through the foam dispenser figure 6 .
- the chamber 5 has an inner cylinder 13 and an outer cylinder 12 which are arranged concentrically to one another in the overlapping area.
- the inner cylinder 13 is arranged offset upwards relative to the outer cylinder 12 along the longitudinal axis of the two cylinders towards the dispensing opening 4, so that the chamber protrudes upwards out of the bottle over the end of the bottle neck.
- the area of the chamber 5 on the chamber floor 14 is only single-walled.
- the inner cylinder 13 contains three foam bodies 9 which are stacked one on top of the other and are flush with the wall of the inner cylinder 13 .
- the chamber has several inlet openings 8, which are above the liquid level 17 inside the bottle.
- the riser 10 which is attached to the lower end of the chamber 5, extends to the bottom 11 of the bottle.
- the liquid is forced upwards through the riser tube 10, sucking in air from the headspace of the bottle. Air and liquid are mixed with one another by the foam bodies 9 and the resulting foam is discharged upwards from the dispensing opening.
- the dispensing opening 4 is shifted to the side of the cap and is not shown here because it is outside the section plane.
- the side wall of the chamber can have further inlets which are located outside the sectional plane and are therefore not shown.
- a bottle size foam dispenser with a capacity of 100ml and a construction similar to that in figures 1 and 3 shown was tested with different chambers and different foam bodies.
- the cylindrical chambers, each with a volume of 1.45 cm 3 differed from one another in the number of inlets and the size of the inlet openings.
- the foam bodies were compressed to different degrees. In the case of two foam bodies, there was still no compression (density unchanged at 0.03 g/cm 3 ). For three foam bodies, the compression was about 16% (density then increased to 0.036 g/cm 3 ). For four foam bodies, the compression was about 37% (density then increased to 0.047 g/cm 3 ).
- the tested solutions had the following compositions:
- Examples 1 to 24 hand disinfectants (highly alcoholic, leave-on product) ethanol 80% silicone surfactant 1% glycerin 0.50% tetradecanol 0.75% optional foam stabilizer (only for examples 17 to 24) Water to 100
- Examples 25 to 27 Aqueous soap formulation Sodium Lauryl Sulfate (SLS) (surfactant) 2% Citric acid (pH regulator) 0.50% Water to 100
- Examples 28 to 30 surface disinfectant (low alcohol content) ethanol 14% 1-propanol 6% 2-propanol 10% N-alkylaminopropylglycine 0.50% Water to 100
- foam dispenser 1 plastic bottle 2 sealing cap 3 dispensing opening 4 chamber 5 Wall 6 inlet 7 inlet 8th foam body 9 riser 10 bottle bottom 11 outer cylinder 12 inner cylinders 13 chamber floor 14 cover of the cap 15 space 16 liquid level 17 Lid 20 inner thread 21 external thread 22 flange 23 Bracket riser 24 dispenser device 25 foam 26 airflow L liquid flow f
- Table 1 example no Density foam g/cm 3 Density lb/ft 3 Number l foam body Number of inlets in chamber wall Diameter inlet chamber wall [mm] Total area inlet chamber wall [mm 2 ] Number of inlets chamber floor Diameter inlet chamber bottom [mm] Total area inlet chamber floor [mm 2 ] Ratio of total area of air inlets to liquid inlets foam quality 1 0.030 1.9 2 3 0.8 1,508 1 1.0 0.785 1:1.92 3.0 2 0.030 1.9 2 4 0.8 2.011 1 1.0 0.785 1:2.56 3.0 3 0.030 1.9 2 3 0.8 1,508 1 1.2 1.131 1:1.33
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21217299.3A EP4201531A1 (fr) | 2021-12-23 | 2021-12-23 | Distributeur de mousse actionné manuellement pour solutions moussantes |
PCT/EP2022/083476 WO2023117313A1 (fr) | 2021-12-23 | 2022-11-28 | Distributeur de mousse à actionnement manuel pour solutions moussantes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21217299.3A EP4201531A1 (fr) | 2021-12-23 | 2021-12-23 | Distributeur de mousse actionné manuellement pour solutions moussantes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4201531A1 true EP4201531A1 (fr) | 2023-06-28 |
Family
ID=79024612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21217299.3A Pending EP4201531A1 (fr) | 2021-12-23 | 2021-12-23 | Distributeur de mousse actionné manuellement pour solutions moussantes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4201531A1 (fr) |
WO (1) | WO2023117313A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422993A (en) * | 1967-07-26 | 1969-01-21 | Johnson & Son Inc S C | Foam dispensing device and package |
US4018364A (en) * | 1975-04-03 | 1977-04-19 | Hershel Earl Wright | Foam dispensing device |
GB1478607A (en) | 1975-04-03 | 1977-07-06 | Hershel Earl Wright | Foam dispenser |
WO1989009095A1 (fr) * | 1988-03-28 | 1989-10-05 | Francis Poizot | Distributeur-generateur de mousse |
US11000161B2 (en) * | 2016-02-11 | 2021-05-11 | Gojo Industries, Inc. | High quality non-aerosol hand sanitizing foam |
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2021
- 2021-12-23 EP EP21217299.3A patent/EP4201531A1/fr active Pending
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2022
- 2022-11-28 WO PCT/EP2022/083476 patent/WO2023117313A1/fr unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US3422993A (en) * | 1967-07-26 | 1969-01-21 | Johnson & Son Inc S C | Foam dispensing device and package |
US4018364A (en) * | 1975-04-03 | 1977-04-19 | Hershel Earl Wright | Foam dispensing device |
GB1478607A (en) | 1975-04-03 | 1977-07-06 | Hershel Earl Wright | Foam dispenser |
WO1989009095A1 (fr) * | 1988-03-28 | 1989-10-05 | Francis Poizot | Distributeur-generateur de mousse |
US11000161B2 (en) * | 2016-02-11 | 2021-05-11 | Gojo Industries, Inc. | High quality non-aerosol hand sanitizing foam |
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WO2023117313A1 (fr) | 2023-06-29 |
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