FIELD: covering of material with wide or narrow stripes of solution by means of extruder head.
SUBSTANCE: extruder head includes at least one neck with drain spouts extending beyond surface or body of extruder head. Construction of extruder head excludes leakage of solution from it. Upper and lower parts of extruder head bounding the neck are flat at mirror image relative to each other. Drain spouts are located in the immediate vicinity of material to be covered with solution. Solution flowing through extruder head is directed to tape of fabric and is settled in wide or narrow stripe of constant thickness. Reagent-type solution is used as a rule. After drying of coat on substrate, article may be used as testing stripe with reagent.
EFFECT: enhanced efficiency.
9 cl, 11 dwg, 1 ex
