SPIRAL SPRAY COATING METHOD AND SPIRAL SPRAY COATING DEVICE

摘要

PROBLEM TO BE SOLVED: To extend coating width by enlarging coating area.;SOLUTION: This method is constituted so that a 2nd pressurized air flow K2 jetted from many 2nd pressurized air holes 13 arranged concentrically and positioned at a certain interval outward to 1st pressurized air holes 12 is formed outside a 1st pressurized air flow K1 discharged from many 1st pressurized air holes 12 arranged concentrically around the opening of an adhesive hole 11 and an air curtain by the 2nd pressurized air is formed outside a spiral of a hot melt adhesive fiber by supplying the 2nd pressurized air flow to the outside of the 1st pressurized air flow.;COPYRIGHT: (C)2000,JPO