Tape heating apparatus and bookbinding apparatus

Details Tape heating apparatus and bookbinding apparatus Tape heating apparatus and bookbinding apparatus

1997-04-17

2000-02-15

Fridie, Jr., Willmon

Bookbinding: process and apparatus

Apparatus

Edge binding apparatus

412 11, 412 14, 412 33, 412 37, 412 41, 412900, 412902, B42B 500, B42C 900

Patent

active

060245255

ABSTRACT:
The present invention relates to a tape heating apparatus in which both side portions of a bind tape can positively be adhered to front and rear surfaces of a sheet bundle without creating any swollen portions. When a thickness of the sheet bundle is smaller than a predetermined value, side heaters perform a first heating/pressurizing operation at a position in the vicinity of a bound edge of the sheet bundle and then performs a second heating/pressurizing operation at a position spaced apart from the bound edge of the sheet bundle by a predetermined distance. In the first heating/pressurizing operation, portions of a thick hot melt adhesive layer existing on the front and rear surfaces of the sheet bundle are melted to be flattened, to thereby eliminate swollen portions. In the second heating/pressurizing operation, thin hot melt adhesive layers are melted, to thereby positively adhere both width-wise side portions of the bind tape to the front and rear surfaces of the sheet bundle.

REFERENCES:
patent: 5569012 (1996-10-01), Kosasa et al.
patent: 5742456 (1998-04-01), Kinjo et al.

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