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Capillary device for lacquering or coating plates or disks

  • US 5,455,062 A
  • Filed: 01/13/1995
  • Issued: 10/03/1995
  • Est. Priority Date: 05/28/1992
  • Status: Expired due to Term
First Claim
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1. A method for coating a series of plates substrates sequentially, said method comprising the steps of:

  • a) providing a channel and filling said channel with a liquid coating medium;

    b) arranging in said channel two parallel means for forming therebetween a capillary slot;

    c) immersing said two parallel means in the liquid coating medium contained in said channel;

    d) decreasing a distance between said parallel means to a capillary width to form said capillary slot and to press an amount of the liquid coating medium out of said capillary slot;

    e) advancing a plate with a surface to be coated facing said capillary slot across said capillary slot;

    f) depositing a film of the liquid coating medium on the plate by a capillary effect of said capillary slot and by adhesion;

    g) after said step of depositing enlarging a distance between said parallel means to cancel the capillary effect of said capillary slot in order to preserve the liquid coating medium; and

    h) repeating the steps d) through g).

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