Solution striping system
First Claim
1. A solution coating system comprising:
- a die comprising a body and an open mouth, said body adapted for passing solution from a source to said mouth, said mouth comprising a pair of portions having substantially flat, substantially parallel solution directing surfaces extending beyond said body, each mouth portion terminating in a lip having an edge, said edges being substantially in alignment with one another, said die being adapted to avoid solution leakage.
7 Assignments
0 Petitions
Accused Products
Abstract
A system for laying down stripes of solution on substrate is described. The substrate preferably comprises a web of material set on a backing roller passed by a specially configured die. The die includes at least a mouth with lips extending beyond a face or body of the die. The die is adapted to avoid fluid leakage therefrom. Upper and lower portions of the die defining the mouth are preferably substantially flat and mirror images of each other. The lips are preferably placed in close proximity to the material on which the solution is to be deposited. Solution passing through the mouth of the die is directed to the webbing and deposited in a substantially constant thickness stripe or band. Often, the solution comprises a reagent-type solution. The solution coating is typically dried onto the substrate. Dried product may then be used in reagent test strop production.
21 Citations
21 Claims
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1. A solution coating system comprising:
a die comprising a body and an open mouth, said body adapted for passing solution from a source to said mouth, said mouth comprising a pair of portions having substantially flat, substantially parallel solution directing surfaces extending beyond said body, each mouth portion terminating in a lip having an edge, said edges being substantially in alignment with one another, said die being adapted to avoid solution leakage. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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4. The system of clam 2, wherein said body includes at least one groove for passing solution through said body to said mouth.
Specification