Abstract: The plastic bag may include flexible thermoplastic sidewalls that have a pattern imparted onto them. The wrinkle pattern may be a plurality of linear ribs formed into the sidewall that may be arranged adjacent and parallel to one another. To impart the pattern to the sidewall, a thermoplastic web used to make the sidewall may be directed between a first cylindrical roller and a second cylindrical roller, each of which may have a plurality of spaced ridges extending about their peripheries. When the web is directed between the first and second rollers, the meshing of the ridges may form ribs into the web.

Abstract: Plastic bags are successively made by intermittently feeding upper and lower panel material webs that are temporarily fixed to side gusset material layers. The webs are joined along a joint line. One web is folded along a first line spaced from the joint line to open the webs and form a surface on the webs. One gusset layer is folded along the first line to open the gusset layers along with an auxiliary gusset portion and form a surface on the layers of the auxiliary gusset portion. One web is turned along a turned line formed between the joint line and the first line to make a turned portion formed in one web and superimposed on the surfaces. The other web is folded along a second line spaced from the joint line to make a folded portion in the other web and superposed on the surfaces.

Abstract: Provided is a bag-making machine for manufacturing a plastic bag with a body part and side gusset parts, in which when a bag having a long height is manufactured, it is not required to use a body member with a long width. Side gusset members (14) are folded in two and fed by a side gusset member supply mechanism (16). The side gusset members (14) are disposed in the longitudinal direction of a body member (11) so as to face each other at spaces therebetween in the lateral direction of the body member (11). Each of the side gusset members (14) is divided into predetermined lengths, and the divided side gusset members (14) are disposed at spaces therebetween in the longitudinal direction of the body member (11). The body member (11) and the side gusset members (14) are so heat-sealed by a vertical sealing device (26) in the longitudinal direction of the body member (11) as to form vertical seal parts (27).

Abstract: A folding machine which takes a prescored blank of paper, folds side flaps up, and glue tabs down, applies a glue line to the tabs, and folds end flaps of the blank about score lines onto the glue tabs to form boxed pockets and then delivers the finished folder for use.

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.

Abstract: A multiple pocket envelope for storing a floppy disk, microfiche, photographic negatives and positives, and the like and information related thereto, the envelope being formed from a single sheet (10) susceptible of folding by machine. A sheet (10) suitable for forming the envelope and a method of folding the sheet to form the envelope are also disclosed.

Abstract: A multiple pocket, expandable envelope is formed by folding panels of a planar, unitary blank relative to each other. The envelope has a front, a back, and a pair of intermediate panels hingedly coupled to each other along parallel end edges. A front divider panel is disposed between the front panel and one of the intermediate panels while a back divider panel is disposed between the back panel and the other of the intermediate panels to define four pockets within the envelope. The back panel is hingedly coupled to the back divider panel along a fold line at one side thereof. The one intermediate panel is hingedly coupled to the front divider panel along a fold line at one side thereof. A plurality of side panels hingedly couple the front panel to the front divider panel and the other intermediate panel to the back divider panel.

Abstract: A multiple pocket, expandable envelope is formed by folding panels of a planar, unitary blank relative to each other. The envelope has two pair of front and back panels hingedly coupled along a common end edge. Each front and back panel includes a front and back divider panel therebetween to define six pockets within the envelope. Each front panel is hingedly coupled to a front divider panel along a fold line at one side thereof. Each back panel is hingedly coupled to a back divider panel along a fold line at one side thereof. A plurality of side panels hingedly couple each front panel to a front divider panel at the other side of the front panel, each back panel to a back divider panel at the other side of the back panel, and the front and back divider panels at each pair to each other. One of the front panels in each pair is hingedly coupled to one of the back panels in an adjacent pair to form the six-pocket, expandable envelope.