Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
1998-09-21
2001-09-04
Aftergut, Jeff H. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S204000, C156S324000
Reexamination Certificate
active
06284083
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a method for producing a folded, perforated, printed product having an unfolded width exceeding that normally available when using a web printing process. More particularly, the invention relates to a multiweb, gutterless, perforated, folded product having an unfolded width greater than the width of a single web forming a part thereof and the method for producing that product.
BACKGROUND OF THE INVENTION
Advertisers frequently seek to gain the attention of the public by distributing novel, attention-getting printed media. One such media often employed by advertisers is a folded, multipanel printed display or magazine insert having an image area exceeding the nominal width of a magazine page. In many cases, advertisers desire inserts or displays having unfolded widths exceeding forty inches or more. When these inserts or displays are perforated, they may be removably bound into magazines or otherwise made to have separable portions.
Until now, such displays and inserts wider than forty inches have been expensive and difficult to produce. For example, wide inserts have been produced by feeding sheets of paper of up to 77 inches in width through a sheetfed printing press. This method is cumbersome and labor intensive as sheetfed presses typically can print only one side of a sheet at a time, thereby requiring multiple printing passes if both sides of the insert are to contain printed matter. Additionally, the sheetfed process typically requires a paper of at least 60-pound weight to provide the sheet rigidity required to successfully produce the insert. The required 60-pound weight is almost twice that required by the commonly used web printing process which also prints faster than sheetfed presses. Use of the sheetfed press therefore greatly increases production, paper and shipping costs compared to the web press.
For the reasons discussed above, the faster and cheaper web printing process would be preferred if it could be used to produce inserts of adequate width. Unfortunately, commercially available web presses produce printed webs having a maximum width of 36 to 38 inches. This limit results from both mechanical and economic factors.
In web presses presently known in the art, mechanical stability limits web width. For example, if printing cylinders begin to exceed the maximum standard 38-inch width, the mechanical stability of such printing cylinders would degrade to the point where commercially acceptable printed webs could not be produced. Furthermore, even if the cylinder stability problem could be solved, similar stability problems would have to be solved in auxiliary equipment such as splicers, perforators, folding towers and cutters. Finally, if all mechanical problems could be solved, conversion to more expensive wider web presses and auxiliary equipment would be economically infeasible for most applications.
Inherent properties of the paper used in web presses also limits web width. As water and ink is applied to the web, the paper fibers exhibit moisture-induced expansion. This expansion causes subsequently applied colors to be out of register with earlier applied colors if not corrected. For paper widths up to 38 inches, “buzzle wheels” are used to narrow the paper width, thereby bringing the edges of the paper back within an acceptable range of side register deviation. Unfortunately, applying buzzle wheel correction to wider paper widths is impractical, as the greater paper width would require the application of greater wheel forces frequently exceeding the breaking strength of the paper.
Accordingly, a need exists for a method to produce a web press-printed perforated, folded insert or display having a width exceeding the maximum web width available on the press.
SUMMARY OF THE INVENTION
In accordance with the present invention, a method for producing a multiweb perforated folded product or magazine insert is provided. The method involves folding and joining two or more printed webs to produce an unusually wide advertising brochure or insert, which can be perforated to readily allow removal of a portion from the magazine or other bound pages when desired.
More specifically, in one embodiment of the invention, a method is disclosed comprising simultaneously conveying first and second printed webs, longitudinally folding a first web to form an attaching panel, bringing the two webs into vertical registry, perforating at least one of the webs and thereafter joining the webs to form a longitudinal gutterless joint between the webs. In some embodiments, the first and second webs are conveyed in generally parallel paths. The joined webs can be transversely cut to form the multiweb folded product of desired length or page height.
In another embodiment, a method for producing a removable folded product or insert having an unfolded width greater than the width of any single web forming a part thereof is provided. The method includes the steps of simultaneously conveying first and second printed webs (such as from a web printing press), longitudinally folding the first web to form a plurality of viewing panels, continuously perforating at least one of the webs, longitudinally folding the first web to form a first web longitudinal web attaching panel, applying an adhesive to a portion of the attaching panel, thereafter abutting or contacting the second web to the first web attaching panel where it overlaps with the attaching panel to form a gutterless joint, and longitudinally folding the second web to form a plurality of second web viewing panels. In some embodiments, the first and second webs are folded into an equal number of viewing panels. In other embodiments, the product can be roll folded, Z-folded or folded in a combination of roll and Z-folds. In still other embodiments, the first web has a width greater than the second web by an amount equal to the width of the first web attaching panel. In still another embodiment, additional webs can be serially attached to previously attached webs to form a product with any desired number of joined webs.
In still another embodiment, a method is disclosed for producing a perforated roll folded product having a width greater than the width of any single web forming a part thereof. The method includes the steps of simultaneously conveying first and second webs along separate paths of travel, continuously perforating at least one of the webs, roll folding the first web to form a plurality of generally parallel first web viewing panels, roll folding the first web to form a longitudinal attaching panel, applying an adhesive to a portion of the attaching panel, and thereafter abutting or contacting the second web to the attaching panel to form a gutterless joint between the webs, and roll folding the second web to form a plurality of second web viewing panels. Additional embodiments are disclosed in which all panels are folded into substantially parallel planes and in which the first and second webs are folded into an equal number of viewing panels.
In yet another embodiment, a method is disclosed for producing a removable folded magazine insert having a width greater than that of any single web forming a part thereof. The method includes the steps of longitudinally folding a first web to form a plurality of viewing panels, longitudinally folding a second web to form a plurality of viewing panels, a binding panel and an attaching panel, attaching the two webs, perforating the binding panel, and folding the binding panel so that the folded webs overlap. In some embodiments, the binding panel includes two perforated lines, thereby forming an insert having a pair of removable displays. In still other embodiments, the removable inserts are bound into magazines.
Finally, the products produced by several of the above-described methods also are claimed.
In accordance with one aspect of the invention, a method for producing a perforated multiweb folded product is disclosed in which two or more webs can be joined to form a wide active image area.
In accordance with another aspect of the inventi
Aftergut Jeff H.
Ryndak & Schwartz
Sleepeck Printing Company
LandOfFree
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