EP3954823B1 - Membrane pour une presse d'essorage - Google Patents

Membrane pour une presse d'essorage Download PDF

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Publication number
EP3954823B1
EP3954823B1 EP21020313.9A EP21020313A EP3954823B1 EP 3954823 B1 EP3954823 B1 EP 3954823B1 EP 21020313 A EP21020313 A EP 21020313A EP 3954823 B1 EP3954823 B1 EP 3954823B1
Authority
EP
European Patent Office
Prior art keywords
membrane
parts
zinc
rubber
membrane 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.)
Active
Application number
EP21020313.9A
Other languages
German (de)
English (en)
Other versions
EP3954823A1 (fr
Inventor
Alexander Steinhauer
Dana Grefen
Tim Zaiser
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.)
Maxi Press Elastomertechnik GmbH
Original Assignee
Maxi Press Elastomertechnik 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 Maxi Press Elastomertechnik GmbH filed Critical Maxi Press Elastomertechnik GmbH
Publication of EP3954823A1 publication Critical patent/EP3954823A1/fr
Application granted granted Critical
Publication of EP3954823B1 publication Critical patent/EP3954823B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/26—Permeable casings or strainers
    • 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
    • D06F47/00—Apparatus of the press type for expelling water from the linen
    • D06F47/06—Apparatus of the press type for expelling water from the linen by a flexible diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers

Definitions

  • the invention relates to a membrane for a dewatering press for laundry with a membrane disc, with an edge raised from the outer circumference of the membrane disc, wherein the membrane is made of a rubber-elastic material.
  • Such a membrane is, for example, from the EN 20 2012 002 350 U1
  • Such drainage membranes are usually made of natural rubber and used for industrial washing systems. In such industrial washing systems, the membranes are exposed to constant dynamic loads combined with high levels of abrasion. The moist, warm environment and contact with worn laundry enable the colonization of spores and bacteria. After some time, these lead to unpleasant slime formation and deeper contamination of the material.
  • the document EN 10 2016 217337 A1 discloses a membrane for a laundry dewatering press according to the preamble of independent claim 1.
  • the invention is based on the problem of developing a membrane of the type mentioned at the beginning in such a way that slime formation by spores and bacteria is avoided.
  • This problem is solved according to the invention in that the rubber-elastic material has an antimicrobial component.
  • This design means that the membrane material has an antimicrobial effect. Thanks to the invention, spores and bacteria cannot or only with difficulty adhere to the membrane. This The undesirable formation of slime is reliably avoided by the appropriate choice of the mixture of the membrane material.
  • the antimicrobial component is zinc or a zinc compound.
  • the membrane contains zinc pyrithione to further reduce contamination of the membrane.
  • Zinc pyrithione has a particularly high antimicrobial effect and is therefore particularly suitable for mixing the material.
  • the membrane can be further reduced by containing at least one of the components zinc oxide or zinc dithiphosphate. These substances support the microbacterial effect of the membrane and make a significant contribution to the vulcanization of the membrane during the manufacturing process.
  • a particularly high durability of the membrane under dynamic or mechanical loads can be ensured if the membrane contains an ageing inhibitor TMQ or ZMTI.
  • the membrane contains N-cyclohexyl-2-benzothiazyl-sulfenamide or Contains tetrabenzylthiuram disulfide as a vulcanization aid.
  • the membrane has a particularly long service life if the antimicrobial component is homogeneously distributed in the rubber-elastic material. This design means that the entire material has the antimicrobial component, so that possible abrasion does not lead to increased contamination of the membrane with spores and bacteria.
  • the mixture mentioned reliably complies with the legal requirements for the antimicrobial properties mentioned.
  • the durability of the polymer used in the mixture is reliably guaranteed under mechanical and dynamic loads.
  • FIG. 1 shows a perspective view of a membrane 1.
  • the membrane 1 has a membrane disk 2 and a raised edge 3 arranged on the outer circumference of the membrane disk 2.
  • the free end of the raised edge 3 has hook-shaped deformations 4.
  • These hook-shaped deformations 4 serve to connect to a clamping ring (not shown) of a stamping plate. Forces of the dewatering press are introduced into the membrane 1.
  • the membrane disk 2 has, for example, several radially arranged stiffeners 5.
  • pins 6 are arranged to stiffen the edge 3.
  • the part of the membrane 1 surrounding the pins 6 is made of a homogeneous rubber-elastic material with an antimicrobial mixture.
  • the polymer can be natural rubber, ethylene propylene terpolymer, acrylonitrile butadiene polymer, chloroprene rubber or chlorosulfonated polyethylene.
  • Figure 2 shows an example of a flow chart for the production of the membrane 1.
  • a first step S1 the Figure 1
  • the raw materials of the rubber-elastic material are weighed and mixed in a step S2.
  • step S3 the mixture with the pins is placed in a mold and the material is cross-linked in a predetermined temperature profile. This cross-linking takes place at the polymers mentioned via vulcanization.
  • step S4 the membrane can be demolded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (9)

  1. Membrane (1) pour une presse d'essorage pour du linge avec un disque de membrane (2), avec un bord (3) posé sur la circonférence externe du disque de membrane (2), dans laquelle la membrane (1) est constituée d'un matériau de type caoutchouc élastique, caractérisée en ce que le matériau de type caoutchouc élastique contient un composant antimicrobien.
  2. Membrane selon la revendication 1, caractérisée en ce que le composant antimicrobien est du zinc ou un composé de zinc.
  3. Membrane selon la revendication 2, caractérisée en ce que la membrane (1) contient du zinc-pyrithione.
  4. Membrane (1) selon la revendication 2 ou 3, caractérisée en ce que la membrane (1) contient au moins un des composants suivants : oxyde de zinc ou dithiphosphate de zinc.
  5. Membrane selon au moins l'une des revendications 1 à 4, caractérisée en ce que la membrane (1) contient un agent anti-vieillissement TMQ ou TMTI.
  6. Membrane selon au moins l'une des revendications 1 à 5, caractérisée en ce que la membrane (1) contient du N-cyclohexyl-2-benzothiazyl-sulfénamide ou du disulfure de tétrabenzylthiurame.
  7. Membrane selon au moins l'une des revendications 1 à 6, caractérisée en ce que le composant antimicrobien est réparti de manière homogène dans le matériau de type caoutchouc élastique (1).
  8. Membrane selon au moins l'une des revendications 1 à 7, caractérisée en ce que le composant principal de la membrane (1) est au moins un des polymères suivants :
    - caoutchouc naturel (NR)
    - terpolymère d'éthylène-propylène (EPDM)
    - polymère acylnitrile-butadiène (NBR)
    - caoutchouc chloroprène (CR)
    - Polyéthylène chlorsulfoné (CSM)
    - Élastomère styrène-butadiène (SBR).
  9. Membrane selon au moins l'une des revendications 1 à 8, caractérisée en ce que la membrane (1) est constituée des composants suivants :
    - polymère 100 parties
    - silice silanisée ou non silanisée 5-100 parties
    - oxyde de zinc 1-20 parties
    - acide stéarique 0,1-10 parties
    - agent anti-vieillissement TMQ 1-10 parties
    - agent anti-vieillissement ZMTI 1-10 parties
    - huile plastifiante paraffinique 0-80 parties
    - soufre 0-5 parties
    - dithiphosphate de zinc 0-5 parties
    - N-cyclohexyl-2-benzothiazyl-sulfénamide 0-5 parties
    - disulfure de tétrabenzylthiurame 0,5-40 parties.
EP21020313.9A 2020-08-11 2021-06-15 Membrane pour une presse d'essorage Active EP3954823B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202020104665.9U DE202020104665U1 (de) 2020-08-11 2020-08-11 Membrane für eine Entwässerungspresse

Publications (2)

Publication Number Publication Date
EP3954823A1 EP3954823A1 (fr) 2022-02-16
EP3954823B1 true EP3954823B1 (fr) 2024-05-08

Family

ID=73459884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21020313.9A Active EP3954823B1 (fr) 2020-08-11 2021-06-15 Membrane pour une presse d'essorage

Country Status (2)

Country Link
EP (1) EP3954823B1 (fr)
DE (1) DE202020104665U1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741148C (de) * 1938-12-03 1943-11-05 Ernst Mergell Hydraulische Waeschepresse
DE202012002350U1 (de) 2012-03-03 2012-04-26 MAXI-PRESS Elastomertechnik GmbH Membran für eine Entwässerungspresse für Wäsche
JP6483595B2 (ja) * 2015-12-04 2019-03-13 日立アプライアンス株式会社 塗料組成物及び塗装部品の製造方法
DE102016217337A1 (de) * 2016-09-12 2018-03-15 Contitech Vibration Control Gmbh Kautschukmischung und elastischer Artikel enthaltend die Kautschukmischung

Also Published As

Publication number Publication date
DE202020104665U1 (de) 2020-11-04
EP3954823A1 (fr) 2022-02-16

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