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Method for the manufacture of a self-supporting test field material

  • US 5,290,515 A
  • Filed: 10/20/1992
  • Issued: 03/01/1994
  • Est. Priority Date: 02/28/1991
  • Status: Expired due to Fees
First Claim
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1. A method for manufacturing a self-supporting test field material, said method comprising the steps of:

  • providing a reagent film mass, said reagent film mass including at least one reagent for performing an analysis of a liquid sample;

    providing a carrier material comprising an open-pored fibre structure, and having a thickness of less than 0.1 mm;

    pressing said reagent film mass into a first side of said carrier material wherein said reagent film mass substantially penetrates into pores of the open-pored fibre structure of the carrier material and wherein a portion of said reagent film mass penetrates through from the first side of the carrier material to a second side of the carrier material;

    smoothing the reagent film mass on the second side of the carrier material by a relative motion of the carrier material and a smoothing tool wherein said pores are substantially filled by the reagent film mass wherein a resulting thickness of the test field material is less than 0.1 mm, and wherein the reagent film mass is distributed essentially symmetrically through the test field material; and

    drying the carrier material in a non-contact manner.

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