초록 ▼

A modular die for applying hot melt adhesive onto a substrate comprises (a) a manifold having adhesive and air passages formed therein, (b) a plurality of self-contained and interchangeable die bodies mounted on the manifold, and (c) a die head detachably mounted on each die body. The die heads are

A modular die for applying hot melt adhesive onto a substrate comprises (a) a manifold having adhesive and air passages formed therein, (b) a plurality of self-contained and interchangeable die bodies mounted on the manifold, and (c) a die head detachably mounted on each die body. The die heads are selected from melt spraying, meltblowing, and linear bead applicators permitting the application of a variety of adhesive patterns on the substrate.

대표청구항 ▼

[ What is claimed is:] [1.] A modular die assembly for depositing a hot melt adhesive onto a substrate which comprises:(a) a manifold having adhesive and air passages formed therein;(b) a plurality of substantially identical modular die bodies mounted in side-by-side relation on the manifold, each d

[ What is claimed is:] [1.] A modular die assembly for depositing a hot melt adhesive onto a substrate which comprises:(a) a manifold having adhesive and air passages formed therein;(b) a plurality of substantially identical modular die bodies mounted in side-by-side relation on the manifold, each die body being detachably mounted on the manifold, and having an adhesive passage and an air passage in fluid communication with the adhesive passage and air passage of the manifold exiting through a downwardly facing mounting surface;(c) an air-assisted die head mounted on the mounting surface of each die body, said die heads each having an adhesive flow passage and an air passage formed therein in fluid communication with the adhesive flow passage and air flow passage, respectively, of the die body, said air-assisted die heads being selected from(i) meltblowing die heads wherein a plurality of filaments are discharged into converging sheets of air and deposited on the substrate as a generally uniform film, and(ii) spiral nozzle head wherein a monofilament is discharged from the die head into air jets and a spiral mono-filament bead is deposited on the substrate, said die heads being interchangeable, said modular die assembly comprising at least one of each type of air-assisted die head so that the adhesive pattern on the substrate comprises at least one meltblown film strip beside a spray monofilament bead strip.