Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1991-01-08
1993-08-17
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
2065242, 383113, 383114, 383116, 383120, 493246, B32B 3116, B65D 3008, B65D 3020
Patent
active
052365310
ABSTRACT:
This invention relates to the method for manufacturing a variety of square bottom containers by folding to the same side both of two brims of a sheet-shaped container of raw material of paper, aluminum foil, plastic laminate film and the like such that the brims mutually abut each other, forming a bonding agent or heat-seal layer on the outsides of both these butted brims, then forming the lower portion into a W-shape with an inverted V-shaped fold being provide in the midway, and then press-fitting the bonding agent or heat-seal layer from the outside of the formed sheet for its bonding or deposition, the press fit formed sheet defining a square bottom container having a bottom laminate which is flat with no overlap and having a heat seal film or the like which doesn't come inside the container. The method is efficient and the containers can be manufactured quite easily.
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Altech Co., Ltd.
Ball Michael W.
Yoder Michele K.
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