EP2794975A1 - Bauteil eines haushaltsgerätes mit einer beschichtung - Google Patents
Bauteil eines haushaltsgerätes mit einer beschichtungInfo
- Publication number
- EP2794975A1 EP2794975A1 EP12812203.3A EP12812203A EP2794975A1 EP 2794975 A1 EP2794975 A1 EP 2794975A1 EP 12812203 A EP12812203 A EP 12812203A EP 2794975 A1 EP2794975 A1 EP 2794975A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- component
- boundary
- wetted
- coating
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 40
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 8
- 239000012791 sliding layer Substances 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000002209 hydrophobic effect Effects 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000005530 etching Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims description 2
- 230000001846 repelling effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003599 detergent Substances 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005661 hydrophobic surface Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000032770 biofilm formation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000548 poly(silane) polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polysiloxanes Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
-
- 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
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
-
- 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
- D06F75/00—Hand irons
- D06F75/08—Hand irons internally heated by electricity
- D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
Definitions
- the invention relates to a component of a household appliance which is wetted by a liquid and is provided on its surface which comes into contact with the liquid with a coating which is at least hydrophobic.
- Hydrophobic surfaces are known from nature, in which they are particularly adapted to plants. The purging of liquids from these surfaces is commonly referred to as a "lotus effect.” For example, hydrophobicity is achieved on leaf surfaces by being composed of natural wax, which is in a particular waxy scale structure.
- the correspondingly wetted surfaces being provided with coatings, which are preferably produced from fluoropolymers, silicone resins, polysiloxanes or polysilanes. Care must always be taken to ensure that the liquid, which may contain dust, oily dirt or aggressive components, can flow off due to an inclined arrangement of the surface. If liquid residues accumulate on the surface and last for a longer time at these locations, there is a risk that the coating will be destroyed despite the hydrophobic surface coating. Then, the liquid can come into contact with the surface of the corresponding component, so that there form residues or corrosion occurs on the component.
- the oleophobization is generally also desired, and the corresponding coating is then also suitable for preventing oils and fats from adhering to the surface. Depending on their type and viscosity, these oils, fats and oily or fatty emulsions will bead on the oleophobic surface.
- the screen in addition to moisture, the screen is also exposed to lint, dirt particles and, in some cases, detergent residues that may stick to the mesh of the screen, provided that it only consists of a corresponding base material, such as wire or plastic. Since these dirt components, lint and detergent residues very persistently adhere to the screen, it is intended to provide the Siebgroundmaterial with a hydrophobic coating. It can thereby be achieved that, for example, when using the sieve in a tumble dryer, the lint can be easily removed from the sieve by means of a sieve cleaning device having a spray head.
- the hydrophobic coating should be designed as nanolack, which consists of mixed under a coating base nano-ceramic particles, said nanolack cures after being applied to the Siebgroundmaterial by the action of a temperature. It is an object of the present invention to provide a surface coating for a wetted with a liquid component of a household appliance, which is universally applicable to household appliances and stably adhered to the surface of the corresponding component of the household appliance. Furthermore, the surface coating should be insensitive to mechanical damage and permanently ensure drainage of the surface flowing past, mostly heavily contaminated liquid.
- the at least hydrophobic coating should be formed as a liquid boundary layer, wherein it consists of a substrate with a boundary liquid embedded therein and this boundary liquid forms a repellent lubricating layer with respect to the liquid wetting the component.
- Fluid-carrying components in household appliances are often not completely emptied for a long period of time or can not dry.
- organic residues in the liquid can be a breeding ground for germination and the formation of biofilms. This is due to interactions of the liquid or its components with the surface.
- the surfaces of components of the household appliances, where these problems occur be provided with a technical surface, which causes the residue-free emptying or discharge of such liquids and their undissolved constituents.
- This can be reliably prevented that form deposits or biofilms on the corresponding surface, and it is achieved that liquid operating media for household appliances are used efficiently and completely in the respective work process.
- a self-repairing, slippery surface is formed by means of the embedded in a substrate boundary liquid, which acts both hydrophobic and oleophobic.
- liquid boundary layer which acts both hydrophobic and oleophobic, no residues from the passing liquid can adhere.
- the liquid boundary layer of the boundary liquid is a perfect structure for immiscible substances (liquids).
- This coating which is formed from the substrate and the stored boundary liquid, is also not impaired in its effect by passing by-passing surfactant-containing alkalis.
- components that are abrasive in the fluid can not damage the surface coating. Therefore, such a surface coating is particularly suitable for components of household appliances that are wetted by liquids.
- the hydrophobic coating according to DE 10 2008 055 093 A1 is designed as a nano-lacquer which is applied to the corresponding sieve base material with a thickness of 1-10 ⁇ m.
- this nano-lacquer should consist of a lacquer base, into which nanoceramic particles are mixed.
- the nanolack should harden after application to the sieve base material by the action of temperature, so form a solid surface coating.
- the substrate should have a nanoporous structure.
- the boundary liquid adheres stably to the substrate having the nanoporous structure according to the principle of wick lubrication, so that the boundary liquid does not mix with the outflowing liquid.
- a sliding layer is formed so that the liquid impinging on this sliding layer easily expands at a certain inclination angle of the corresponding surface without sticking.
- the particles contained in the liquid can not be deposited on the sliding layer.
- the substrate may also be formed as a porous network, in particular in the form of a braid, in which the boundary liquid is embedded. It is also possible to produce the substrate by etching, laser structuring, corroding, plasma processing or structured growth on the surface of the component.
- the liquid boundary layer should act both hydrophobic and oleophobic, so that in addition to water, other liquids can come into contact with the coating and do not adhere to this surface.
- the surface coating according to the invention can be used in all liquid-carrying components to improve residue-free emptying.
- the surface coating according to the invention When constructing components, it must be taken into account that a certain angle of inclination must be maintained in order to ensure drainage of the liquid.
- solid ingredients such as lime, zeolites, fluff, food particles, etc.
- silicone oils, ionic liquids or polar or nonpolar organic solvents can be selected as boundary fluid.
- the choice of the liquid pairing must be exactly adapted to the purpose and possibly requires experimental measurement dates.
- the substrate must be chosen so that the repulsive boundary liquid can be stably embedded in the near-surface network.
- This may, for example, be a water tank of a steam iron, a water tank of a kettle or a heating bag of a washing machine.
- the use of the surface coating according to the invention prevents lime deposits from precipitating in these components.
- the coating can advantageously be provided in dishwashing dishes of dishwashers or washing machines, in which residues of dishwashing or washing agents are always deposited on conventionally formed surfaces. This problem can be avoided if the surface coming into contact with the rinsing or washing agent is designed in accordance with the invention, so that these means are completely rinsed out of the dispensing tray via the water supplied to the household appliance.
- the insides of a suds container and in a condensation dryer the heat exchanger serving as a heat sink or the condensate container may be provided with a corresponding coating.
- the interior of the hoses or pipes or also the interior of the corresponding pump components such as pump housing and the wheels can be coated according to the invention.
- this surface coating according to the invention is primarily the avoidance of biofilm formation, which is hygiene-relevant. Furthermore, the deposition of lime, which leads to a reduction in the life of the corresponding household appliance, of lint or detergent components that the Function of the household appliance influence, be prevented. Otherwise, in all liquid-carrying systems, over the lifetime of such deposits can occur, which close in the worst case openings or piping systems. This can lead to the failure of the household appliance or performance losses.
- the coating according to the invention can significantly reduce or completely prevent these malfunctions and performance losses with appropriate use in household appliances.
- Another advantage is the self-cleaning property of the surface, as it is constantly freed of residues by running-off liquid. Due to the achieved self-cleaning effects in household appliances can be largely dispensed with prescribed manual equipment cleaning cycles.
- FIG. 1 shows a schematic representation of a dispenser tray provided with a surface coating, which is preferably used for a washing machine or dishwasher,
- FIG 3 is a schematic representation of a conventionally designed Ein Hughesschale.
- the dispenser 1 the side walls 2 and 3 and a sloping bottom 4.
- the dispenser 1 is provided with an outlet opening 5 which is formed at the end of the inclined bottom 4 of this together with the side wall 3.
- the bottom 4 is provided over its entire surface facing the interior of the dispensing dish 1 with a coating 6 which is both hydrophobic and oleophobic.
- the interior of the dispensing dish is usually filled with a prescribed amount of a washing or rinsing agent, and after the start of the washing or rinsing process, as shown symbolically by an arrow, water is supplied via a water inlet 7.
- the bottom 4 consists of a wall 8 made of stainless steel, a substrate consisting of a porous, mesh-like network 9, which receives a boundary liquid 10, being formed on this wall 8.
- This embedded in the substrate 9 boundary liquid 10 forms on the surface facing away from the wall 8 a sliding layer 1 1, which avoids that present in the dispenser 1 washing or rinsing agent or residues of water to connect to the surface of the wall 8 and adhere to this.
- FIG. 3 shows a conventional embodiment of an induction bowl 12, which has an uncoated, inclined bottom 13.
- the amount of these deposited residues 14, which can not be removed by the entering into the dispenser 12 water increases with each operation of the household appliance.
- This problem is avoided by the coating according to Figures 1 and 2 on the wetted with a liquid surface of the household appliance in a secure manner. Since a hydrophobic and oleophobic coating of the soil is accordingly provided, the washing or rinsing agent introduced into the dispensing bowl is completely transported into the household appliance with the water flowing into it.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011089114A DE102011089114A1 (de) | 2011-12-20 | 2011-12-20 | Bauteil eines Haushaltsgerätes |
| PCT/EP2012/075572 WO2013092422A1 (de) | 2011-12-20 | 2012-12-14 | Bauteil eines haushaltsgerätes mit einer beschichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2794975A1 true EP2794975A1 (de) | 2014-10-29 |
| EP2794975B1 EP2794975B1 (de) | 2019-06-26 |
Family
ID=47520037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12812203.3A Not-in-force EP2794975B1 (de) | 2011-12-20 | 2012-12-14 | Bauteil eines haushaltsgerätes mit einer beschichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2794975B1 (de) |
| DE (1) | DE102011089114A1 (de) |
| WO (1) | WO2013092422A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2595827B1 (es) * | 2014-05-22 | 2017-10-16 | Bsh Electrodomésticos España, S.A. | Aparato doméstico para el tratamiento de prendas de ropa con una cubeta de detergente con recubrimiento específico |
| DE102014210624A1 (de) * | 2014-06-04 | 2015-12-17 | BSH Hausgeräte GmbH | Haushaltsgerät mit einem Laugenbehälter |
| ES2594179B1 (es) * | 2015-06-16 | 2017-09-19 | Bsh Electrodomésticos España, S.A. | Componente de aparato doméstico para un aparato doméstico |
| WO2017194302A1 (en) * | 2016-05-11 | 2017-11-16 | BSH Hausgeräte GmbH | Household appliance with a functionally coated mesh sieve, mesh sieve used therein and process for the manufacture of the mesh sieve |
| PL3243954T3 (pl) * | 2016-05-11 | 2019-09-30 | BSH Hausgeräte GmbH | Urządzenie gospodarstwa domowego z funkcjonalnie powlekanym sitem oczkowym, stosowane w nim sito oczkowe oraz proces do produkcji sita oczkowego |
| DE102017200272B4 (de) * | 2017-01-10 | 2026-01-29 | BSH Hausgeräte GmbH | Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine |
| DE102017107227B3 (de) | 2017-04-04 | 2018-08-30 | Miele & Cie. Kg | Wasserführendes elektrisches Gerät und Verfahren zur Herstellung eines wasserführenden Bauteils für ein wasserführendes elektrisches Gerät |
| WO2019076625A1 (en) * | 2017-10-17 | 2019-04-25 | Arcelik Anonim Sirketi | COMPARTMENT FOR DETERGENT |
| DE102020201012A1 (de) | 2020-01-28 | 2021-07-29 | BSH Hausgeräte GmbH | Haushaltsgeschirrspülmaschine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2781495B3 (fr) * | 1998-07-24 | 2000-09-01 | Saint Gobain Vitrage | Composition de traitement hydrophobe, procede de formation d'un revetement a partir de cette composition et produits munis de ce revetement |
| DE10236728A1 (de) * | 2002-08-09 | 2004-02-26 | Schott Glas | Reinigungsfreundliche Vorrichtung |
| WO2008052980A1 (en) * | 2006-10-31 | 2008-05-08 | Arcelik Anonim Sirketi | A washing machine |
| JP2009103434A (ja) * | 2007-10-01 | 2009-05-14 | Sumitomo Light Metal Ind Ltd | アルミニウム熱交換器 |
| US8324285B2 (en) * | 2007-11-06 | 2012-12-04 | The Boeing Company | Hydrophobic and/or oleophobic open cell polyimide acoustic and thermal insulation foams and methods of making |
| DE102008043168A1 (de) * | 2008-10-24 | 2010-04-29 | Robert Bosch Gmbh | Trocknungsvorrichtung mit einem Kondensator |
| DE102008055093A1 (de) | 2008-12-22 | 2010-06-24 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsgerätesieb, Haushaltsgerät mit einem solchen Sieb und Verfahren zum Herstellen eines solchen Siebs |
-
2011
- 2011-12-20 DE DE102011089114A patent/DE102011089114A1/de not_active Withdrawn
-
2012
- 2012-12-14 EP EP12812203.3A patent/EP2794975B1/de not_active Not-in-force
- 2012-12-14 WO PCT/EP2012/075572 patent/WO2013092422A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013092422A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013092422A1 (de) | 2013-06-27 |
| EP2794975B1 (de) | 2019-06-26 |
| DE102011089114A1 (de) | 2013-06-20 |
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