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Method and reagent for producing narrow, homogenous reagent strips

  • US 7,879,618 B2
  • Filed: 01/29/2009
  • Issued: 02/01/2011
  • Est. Priority Date: 06/20/2003
  • Status: Active Grant
First Claim
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1. A process for producing a reagent layer on a solid support material, comprising the steps of:

  • providing a solid support material;

    moving said solid support material relative to a slot-die-coating head;

    maintaining a defined distance between the surface of said solid support material and said slot-die-coating head;

    depositing a shear thinning, at least slightly thixotropic reagent through said slot-die-coating head to create a continuous stripe of reagent on said solid support material, wherein said reagent has a viscosity of between about 95 to 115 mPa-s and a surface tension of between about 33 and 42 mN/m; and

    drying the coated reagent stripe on said support material.

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