EP4323122A1 - Appareil de pulvérisation pour pulvériser un liquide cosmétique, méthode pour faire fonctionner un appareil de pulvérisation, buse pour un appareil de pulvérisation et réseau de buses pour un appareil de pulvérisation - Google Patents

Appareil de pulvérisation pour pulvériser un liquide cosmétique, méthode pour faire fonctionner un appareil de pulvérisation, buse pour un appareil de pulvérisation et réseau de buses pour un appareil de pulvérisation

Info

Publication number
EP4323122A1
EP4323122A1 EP22722693.3A EP22722693A EP4323122A1 EP 4323122 A1 EP4323122 A1 EP 4323122A1 EP 22722693 A EP22722693 A EP 22722693A EP 4323122 A1 EP4323122 A1 EP 4323122A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
electrode
spray
nozzle channel
spray device
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
Application number
EP22722693.3A
Other languages
German (de)
English (en)
Inventor
Sebastian Mangold
Mujo Taletovic
Thomas Jeltsch
Alfred Göhring
Manuel FIESEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
J Wagner GmbH
Original Assignee
J Wagner GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by J Wagner GmbH filed Critical J Wagner GmbH
Publication of EP4323122A1 publication Critical patent/EP4323122A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/054—Means for supplying liquid to the outlet of the container
    • A45D2200/057—Spray nozzles; Generating atomised liquid
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1691—Apparatus to be carried on or by a person or with a container fixed to the discharge device

Definitions

  • the invention relates to a spray device for spraying a cosmetic liquid, a method for operating a spray device, a nozzle for a spray device and a nozzle array for a spray device according to the preamble of claim 1, 10, 12 or 13.
  • DE 102019 135 150 A1 discloses an atomizer nozzle system for an electrodynamic atomizer, in which the distance between an electrical contact element and a nozzle opening is between 5 mm and 20 mm.
  • the object of the invention is to propose a spray device for spraying a cosmetic liquid, a method for operating a spray device, a nozzle for a spray device and a nozzle array for a spray device, in which the spraying of cosmetic liquid functions particularly reliably .
  • the spray device according to the invention for spraying a cosmetic liquid by electrostatic forces comprises a fluid supply, at least one feed device and at least one nozzle, the nozzle having a nozzle body, a connecting flange, a nozzle channel, a spray opening and a Electrode comprises, wherein the fluid supply is connected to the feed device, wherein the feed device is connected to the nozzle, wherein the electrode is arranged in the nozzle channel and wherein the electrode is arranged in the nozzle channel in such a way that it leads to the spray opening along a longitudinal axis of the Nozzle channel measured distance of at most 2.1 mm and at least 0.0 mm, in particular at least 0.1 mm, preferably at least 0.7 mm.
  • spray devices dimensioned in this way work particularly reliably when spraying cosmetic liquids. Even an electrode lying in the same plane as the spray opening does not pose a problem in the light of the invention. A small distance, in particular up to 0.1 mm, preferably 0.7 mm, is preferred.
  • a safety device by which the operating voltage is reduced to a maximum safety voltage of 120 V direct current and preferably 0 V if a safety device detects a current flow of more than 10 microamperes and preferably more than 4 microamperes. In this way, undesired operating states can be reliably avoided.
  • an operating current of approximately 2 microamps will flow during trouble free spray operation. This allows the spraying process to be monitored and documented using the operating current.
  • the electrode is in the form of a rod-shaped electrode which is arranged in the nozzle channel, or for the electrode to be in the form of a tubular electrode which is arranged in the nozzle channel, with the tubular electrode in particular having a lateral surface in contact with an inner lateral surface of the nozzle channel. It has been shown empirically that such elongated electrodes also promote reliable operation.
  • the cosmetic liquid to be in the form of an electrically insulating liquid and in particular as a liquid and electrically insulating cosmetic sun protection product. Particularly good results could be achieved in the test with such liquids.
  • the nozzle of the spray device be equipped with a contact body, the contact body encasing a section of the electrode and being connected to a high-voltage supply line, the contact body is formed from an electrically conductive synthetic polymer, preferably from an electrically conductive silicone, it being provided in particular that the contact body forms a contact resistance between a contact point and the section of the electrode for providing a current flow for a switch-off sensor system, one being provided in particular that the contact body is designed as a plug, it being provided in particular that the contact body forms the connection flange and is accommodated in the nozzle body or that the contact body is accommodated in the connection flange, it being provided in particular that the high-voltage supply line is designed as a guide plate and the contact body is contacted by means of the guide plate and it is provided that the contact body is designed to taper in the manner of a cone towards the spray opening.
  • the contact resistance between the contact point and the section of the electrode makes it possible, for example, to obtain a current flow of 10 mA even at a high voltage of 7 kV, and thereby to activate the switch-off sensor system.
  • the transition resistance should therefore be less than or equal to 700 mega-ohms in order to cause at least a 7kV voltage drop.
  • the contact resistance should even be less than or equal to 7 megaohms.
  • the safety device Monitoring the spray operation using a safety device, the safety device reducing the operating voltage to a safety voltage of 120 V DC and preferably 0 V if the safety device detects a current flow of more than 10 microamperes and preferably more than 4 microamperes. In this way, according to the tests carried out, reliable operation is also promoted and undesired operating states can be reliably avoided as a result.
  • the method provides for the safety device to reapply the operating voltage to the electrode within milliseconds after it has been shut down to the safety voltage. As a result, an almost uninterrupted operation can be realized for the user's perception.
  • the array of nozzles according to the invention for a spray device for spraying a cosmetic liquid by electrostatic forces comprises at least three nozzles according to the invention.
  • the spraying of cosmetic liquids can be implemented particularly reliably and efficiently, particularly on larger areas of skin.
  • the cosmetic liquid is in the form of an electrically insulating liquid and in particular a liquid and electrically insulating cosmetic sun protection product. Particularly good results could be achieved in the test with such liquids.
  • Figure 1 a schematic partial view of a first
  • FIG. 2 a schematic partial view of a second embodiment variant of a spray device according to the invention with a tubular electrode in a sectional side view;
  • FIG. 3 a schematic partial view of a third
  • Embodiment of a spray device according to the invention with a contact body Embodiment of a spray device according to the invention with a contact body.
  • FIG. 1 shows a schematic partial view of a first embodiment variant of a spray device 101 according to the invention with a rod-shaped electrode 102 in a sectional side view.
  • the spray device 101 is designed for spraying a cosmetic liquid F by electrostatic forces and comprises a fluid supply 103 shown purely schematically, a feed device 104 and a nozzle 105.
  • the fluid supply 103 comprises a tank 103a for the cosmetic liquid F and a pump 103b to promote the cosmetic liquid F through the supply device 104 of the nozzle 105.
  • the nozzle 105 comprises a nozzle body 106, a connecting flange 107, a nozzle channel 108, a spray opening 109 and the electrode 102.
  • the fluid supply 103 is connected to the feed device 104 and the feed device 104 is connected to the nozzle 105.
  • the electrode 102 is arranged in the nozzle channel 108 .
  • Electrode 102 is arranged in nozzle channel 108 in such a way that it is at a distance D of 1.5 mm from spray opening 109, measured along a longitudinal axis L108 of nozzle channel 108, with this distance being up to 2.1 mm and can be at least 0.7 mm or less.
  • An operating voltage of about 7.5 kV is present at the electrode 102 when the spray device 101 is in operation. Operation with up to 10 kV and at least about 7 kV is provided for in the case of design variants.
  • the spray device 101 includes a safety device 110, by which the operating voltage is reduced to a safety voltage of maximum 120 V direct current when a safety device 110 detects a current flow of more than 10 microamperes.
  • a safety voltage of 0 V can also be provided and a current flow of more than 4 microamperes can also be provided as a limit value for reducing the operating voltage to the safety voltage.
  • an operating current of approximately 2 microamperes flows during trouble-free spraying operation.
  • the rod-shaped electrode 102 is arranged centrally in the nozzle channel 108 .
  • the nozzle channel 108 runs through the connecting flange 107 and the nozzle body 106 and opens into the spray opening 109 formed in the nozzle body 106.
  • One of the Spray opening 109 in the nozzle channel 108 opposite end 102a of the electrode 102 is flat in the form of a circular disk.
  • a planar design in the form of a polygonal area is also provided.
  • High-voltage feed line 112 is designed as a baffle plate 113, with which the electrode 102 is connected to a second end 102b lying opposite the first end 102a.
  • the baffle plate 113 in the area of the nozzle channel 108 comprises an annular contact 113a with a web 113b leading to the electrode 102 .
  • the spray device 101 is operated with a power of at least 14 milliwatts and at most 100 milliwatts. In this case, the power is selected to match the liquid F to be sprayed and to match the application and to match the number of nozzles.
  • the spray device 101 shown in FIG. 1 can—as shown—be equipped with a nozzle 105 and alternatively also with further nozzles, these then being constructed in a manner comparable to the nozzle shown and with several nozzles forming a nozzle array.
  • the cosmetic liquid F is an electrically insulating liquid EF and is designed as a liquid and electrically insulating cosmetic sun protection product SP.
  • the operation of the spray device 101 is as follows:
  • FIG. 2 shows a schematic partial view of a second embodiment variant of a spray device 201 according to the invention in a sectional side view.
  • the spray device 201 comprises a nozzle 205 with a tubular electrode 202 and not with a rod-shaped electrode.
  • the spray device 201 is designed for spraying a cosmetic liquid F by electrostatic forces and comprises a fluid supply 203 shown purely schematically, a feed device 204 and the nozzle 205.
  • the fluid supply 203 comprises a tank 203a for the cosmetic liquid F and a pump 203b to promote the cosmetic liquid F through the feed device 204 to the nozzle 205.
  • the nozzle 205 comprises a nozzle body 206, a connecting flange 207, a nozzle channel 208, a spray opening 209 and the electrode 202.
  • the fluid supply 203 is connected to the feed device 204 and the feed device 204 is connected to the nozzle 205.
  • the electrode 202 is arranged in the nozzle channel 208 .
  • the electrode 202 is such in the Nozzle channel 208 is arranged such that it has a distance D of 1.5 mm from the spray opening 209 measured along a longitudinal axis L208 of the nozzle channel 208, this distance being up to 2.1 mm and at least 0.7 mm or less in variant embodiments of the spray device can.
  • the tubular electrode 202 is arranged centrally in the nozzle channel 208 and rests with a lateral surface M202 on an inner lateral surface IM208 of the nozzle channel 208 .
  • the nozzle channel 208 runs through the connecting flange 207 and the nozzle body 206 and ends in the spray opening 209 formed in the nozzle body 206.
  • An end 202a of the electrode 202 opposite the spray opening 209 in the nozzle channel 208 is flat in the shape of a circular ring disk.
  • High-voltage feed line 212 is designed as a baffle plate 213, with which the electrode 202 is connected to a second end 202b lying opposite the first end 202a.
  • the baffle plate 213 in the area of the nozzle channel 208 comprises an annular contact 213a.
  • the spray device 201 is operated with a power of at least 14 milliwatts and at most 100 milliwatts. In this case, the power is selected to match the liquid F to be sprayed and to match the application and to match the number of nozzles.
  • the spraying device 201 shown in FIG. 2 can—as shown—be equipped with a nozzle 205 and alternatively also with further nozzles, these then being constructed in a manner comparable to the nozzle shown and forming a nozzle array.
  • the second variant also includes a safety device 210.
  • the cosmetic liquid F is an electrically insulating liquid EF and is designed as a liquid and electrically insulating cosmetic sun protection product SP.
  • FIG. 3 shows a schematic partial view of a third embodiment variant of a spray device 301 according to the invention with a nozzle 305, which includes a contact body 340, in a sectional side view.
  • one electrode is a tubular electrode
  • the electrode 302 is not contacted by means of a ring-like contact, but by means of the contact body 340, which also forms a connecting flange 307 and is accommodated in a nozzle body 306.
  • the contact body 340 encases the tubular electrode 302 up to a first end 302a, with which this is located opposite a spray opening 309 of the nozzle 305.
  • the spraying device 301 is designed for spraying a cosmetic liquid F by electrostatic forces and comprises a fluid supply 303 shown purely schematically, a feed device 304 and the nozzle 305.
  • the fluid supply 303 shown purely schematically, a feed device 304 and the nozzle 305.
  • the nozzle 305 comprises the nozzle body 306, the connecting flange 307 formed by the contact body 340, a nozzle channel 308, the spray orifice 309; and the electrode 302.
  • the fluid supply 303 is connected to the delivery device 304 and the delivery device 304 is connected to the nozzle 305.
  • the electrode 302 is arranged in the nozzle channel 308 . In this case, the nozzle channel 308 is essentially through the contact body 340 educated.
  • the tubular electrode 302 is arranged in the nozzle channel 308 in such a way that it is at a distance D from the spray opening 309 of 1.5 mm measured along a longitudinal axis L308 of the nozzle channel 308, this distance being up to 2.1 mm and can be at least 0.7 mm or less.
  • the tubular electrode 302 is arranged centrally in the nozzle channel 308 and rests with a lateral surface M302 on an inner lateral surface IM308 of the nozzle channel 308 .
  • the nozzle channel 308 runs through the connecting flange 307 formed by the contact body 340 and the nozzle body 306 and ends in the spray opening 309 formed in the nozzle body 306.
  • the end 302a of the electrode 302 opposite the spray opening 309 in the nozzle channel 308 is flat in the shape of a Annular disk formed.
  • a high-voltage supply line 312 coming from a high-voltage source 311 is connected via a ring-like contact 313a to a base 340b of the contact body 340 embodied as a sleeve-like plug 341 .
  • the contact body 340 is designed to taper in the manner of a cone towards the spray opening 309 .
  • the spray device 301 is operated with a power of at least 14 milliwatts and at most 100 milliwatts. In this case, the power is selected to match the liquid F to be sprayed and to match the application and to match the number of nozzles.
  • the spraying device 301 shown in FIG. 3 can—as shown—be equipped with one nozzle 305 and alternatively also with further nozzles, these then having a structure comparable to that shown. Several nozzles then form a nozzle field.
  • the third variant also includes a safety device 310.
  • the cosmetic liquid F is an electrically insulating liquid EF and is designed as a liquid and electrically insulating cosmetic sun protection product SP.
  • Figures 4 to 6 show perspective partial views of a fourth embodiment of a spray device 401 according to the invention with a contact body 440.
  • Figures 4 and 5 are designed as exploded views.
  • the fourth embodiment variant of the spray device 401 comprises three nozzles 405-1, 405-2 and 405-3, with the three nozzles 405-1, 405-2 and 405-3 forming a nozzle field 450 and with the first nozzle 405-1 being described below as an example is described in more detail.
  • an electrode 402 (see FIG. 6) of the first nozzle 405-1 of the fourth embodiment is designed as a tubular electrode 402. Similar to the third embodiment, the electrode 402 is contacted by the contact body 440 . In contrast to the third embodiment variant, the contact body 440 is not held by a nozzle body, but rather by a connecting flange 407 . The contact body 440 encases the tubular electrode 402 in the region of a second end 402b, which is opposite a first end 402a, with which the electrode 402 is opposite a spray opening 409 of the first nozzle 405-1.
  • the spraying device 401 is designed for spraying a cosmetic liquid F by electrostatic forces and includes a device that is only shown schematically in FIG Fluid supply 403, a supply device 404 shown as an example and schematically only in FIG. 4 and only for the third nozzle 405-3, and the three nozzles 405-1, 405-2 and 405-3 mentioned.
  • the fluid supply 403 comprises a tank 403a for the cosmetic liquid F and a pump 403b for conveying the cosmetic liquid F through the feed device 404 to the nozzles 405-1, 405-2 and 405-3.
  • the nozzle 405-1 comprises the nozzle body 406, the connecting flange 407, the contact body 440, a nozzle channel 408, the spray opening 409 and the electrode 402.
  • the fluid supply 403 is connected to the feed device 404 and the feed device 404 is connected to the nozzle 405-1 , 405-2 and 405-3 connected.
  • the electrode 402 is arranged in the nozzle channel 408 .
  • the nozzle channel 408 is formed by the contact body 440 in a lower third remote from the spray opening 409 and by the connecting flange 407 and the nozzle body 406 in the two upper thirds.
  • the electrode 402 is arranged in the nozzle channel 408 in such a way that it is at a distance D of 1.5 mm from the spray opening 409, measured along a longitudinal axis L408 of the nozzle channel 408, this distance being up to 2.1 mm and at least can be 0.7 mm or less.
  • the tubular electrode 402 is arranged centrally in the nozzle channel 408 and rests against an inner lateral surface IM408 of the nozzle channel 408 with a lateral surface M402 in the area of the contact body 440 and in an area of the connecting flange 407 close to the spray opening 409 .
  • the nozzle channel 408 runs through the contact body 440, the connecting flange 407 and the nozzle body 406 and ends in the spray opening 409 formed in the nozzle body 406.
  • the end 402a of the electrode 402 opposite the spray opening 409 in the nozzle channel 408 is flat in the shape of a circular ring disk educated.
  • a high-voltage supply line 412 coming from a high-voltage source 411 (shown only in FIG.
  • the contact body 440 is designed to taper in the manner of a cone towards the spray opening 409 .
  • the contact bodies of the second nozzle 405-2 and the third nozzle 405-3 are also contacted via the baffle plate 413.
  • the spray device 401 is operated with a power of at least 14 milliwatts and at most 100 milliwatts. In this case, the power is selected to match the liquid F to be sprayed and to match the application and to match the number of nozzles.
  • the spray device 401 shown in FIGS. 4 to 6 can, as shown, be equipped with the three nozzles 405-1, 405-2 and 405-3 and alternatively also with further nozzles or only two nozzles or only one nozzle.
  • the fourth embodiment variant - as shown exclusively in Figure 4 - also includes a safety device 410, shown only schematically.
  • the cosmetic liquid F is an electrically insulating liquid EF and is designed as a liquid and electrically insulating cosmetic sun protection product SP.
  • connection flange of 105 connection flange of 105
  • safety device 111 high voltage source 112 high voltage supply line 111 113 guide plate 113a ring-like contact of 113
  • safety device 211 high voltage source 212 high voltage supply line 211 213 guide plate 213a ring-like contact of 213

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

L'invention concerne un appareil de pulvérisation (101) pour pulvériser un liquide cosmétique (F) à l'aide de forces électrostatiques, comprenant : une alimentation en fluide (103), au moins un dispositif d'alimentation (104), au moins une buse (105), la buse (105) comprenant un corps de buse (106), une bride de raccordement (107), un canal de buse (108), une ouverture de pulvérisation (109) et une électrode (102), l'alimentation en fluide (103) étant raccordée au dispositif d'alimentation (104), le dispositif d'alimentation (104) étant raccordé à la buse (105), et l'électrode (102) étant disposée dans le canal de buse (108). Ici, l'électrode (102) est disposée dans le canal de buse (108) de telle sorte que ladite électrode se trouve à une distance (D), mesurée le long d'un axe longitudinal (L108) du canal de buse (108), d'au plus 2,1 mm et d'au moins 0,0 mm, en particulier d'au moins 0,1 mm, de préférence d'au moins 0,7 mm, à partir de l'ouverture de pulvérisation (109).
EP22722693.3A 2021-04-16 2022-04-08 Appareil de pulvérisation pour pulvériser un liquide cosmétique, méthode pour faire fonctionner un appareil de pulvérisation, buse pour un appareil de pulvérisation et réseau de buses pour un appareil de pulvérisation Pending EP4323122A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021109651.0A DE102021109651A1 (de) 2021-04-16 2021-04-16 Sprühvorrichtung zum Versprühen einer kosmetischen Flüssigkeit, Verfahren zum Betrieb einer Sprühvorrichtung, Düse für eine Sprühvorrichtung und Düsenfeld für eine Sprühvorrichtung
PCT/EP2022/059399 WO2022218848A1 (fr) 2021-04-16 2022-04-08 Appareil de pulvérisation pour pulvériser un liquide cosmétique, méthode pour faire fonctionner un appareil de pulvérisation, buse pour un appareil de pulvérisation et réseau de buses pour un appareil de pulvérisation

Publications (1)

Publication Number Publication Date
EP4323122A1 true EP4323122A1 (fr) 2024-02-21

Family

ID=81603484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22722693.3A Pending EP4323122A1 (fr) 2021-04-16 2022-04-08 Appareil de pulvérisation pour pulvériser un liquide cosmétique, méthode pour faire fonctionner un appareil de pulvérisation, buse pour un appareil de pulvérisation et réseau de buses pour un appareil de pulvérisation

Country Status (4)

Country Link
EP (1) EP4323122A1 (fr)
CN (1) CN117500606A (fr)
DE (1) DE102021109651A1 (fr)
WO (1) WO2022218848A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075090A1 (fr) * 2004-02-09 2005-08-18 Matsushita Electric Works, Ltd. Dispositif pulverisateur electrostatique
US8622324B2 (en) * 2011-10-14 2014-01-07 Zyw Corporation VOC-less electrostatic fluid dispensing apparatus
JP5230041B1 (ja) * 2013-01-30 2013-07-10 ランズバーグ・インダストリー株式会社 静電塗装機及び静電塗装方法
JP6494090B2 (ja) * 2015-01-27 2019-04-03 アネスト岩田株式会社 静電噴霧装置
DE102018126489A1 (de) 2018-10-24 2020-04-30 Cinogy Gmbh Plasma-Behandlungsgerät mit Bürstenkopf
KR102595109B1 (ko) 2018-12-21 2023-10-30 요트. 바그너 게엠베하 실리콘 노즐 어레이를 갖는 분무기 시스템
CN109759958B (zh) 2019-03-05 2024-03-22 青岛理工大学 一种静电喷嘴及可控射流微量润滑磨削系统

Also Published As

Publication number Publication date
CN117500606A (zh) 2024-02-02
DE102021109651A1 (de) 2022-10-20
WO2022218848A1 (fr) 2022-10-20

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