US3445053A

US3445053A - Display carton having a film overlap

Info

Publication number: US3445053A
Application number: US523153A
Authority: US
Inventors: William B Lotz
Original assignee: Container Corp
Current assignee: Container Corp; Smurfit Kappa Packaging Corp
Priority date: 1966-01-26
Filing date: 1966-01-26
Publication date: 1969-05-20
Anticipated expiration: 1986-05-20

Description

May 20, 1969 w. B. LOTZ 3,

DISPLAY CARTON HAVING A FILM OVERLAP Q Filed Jan. 26. 1966 MMW i United States Patent US. Cl. 229-37 1 Claim ABSTRACT OF THE DISCLOSURE A paperboard carton having a strip offiexible decorative material disposed over [the outer surfaces of the carton side walls and being attached at its ends to the carton at a corner of the carton in such a way that the strip can be readily removed without damaging the outer surfaces of the canton walls.

This invention relates to a method of aflixing a sheet of plastic film across the front surface of a paperboard panel in a manner so that the sheet can readily be separated from the panel, when desired, without damaging or mar ring the front surface.

This invention forms an improvement in and is particularly suited for promotional display cartons, such as is commonly used for Christmas wrapped whiskey cartons, each having a gayly colored and decorated outer film band encircling the carton body. The film band converts a conventionally printed carton to a festive holiday carton; but the film band can be readily torn from the carton for sale of the product after the holiday season. The invention will be described as applied to a conventional tubular car-ton, but it should be noted that this invention is useful in other applications also.

An object of this invention is to provide improved methods of aflixing a film sheet relative to a paperboard panel in a manner to extend freely and unc'onnectively across the front surface of the panel to permit ready separation of the sheet, when desired, without marring the front surface of the panel.

In the accompanying drawing:

FIG. 1 is a perspective view of a tubular style carton having a film band secured thereto in a manner taught by the subject invention;

FIGS. 2, 3, 4, 5, 6, and 7 are perspective views, to a reduced scale, of a blank suitable for forming the canton of FIG. 1 and showing the manner in which the display band is secured to the carton and the carton is formed, each sequentially numbered figure showing a progressive step in the formation of the carton.

In FIG. 1, a conventional tubular style carton 10 is shown and includes opposed pairs of

side walls

12 and 14, and top wall 16 and a bottom wall (not shown) connected to the opposite ends of the side walls. A band 20 is shown to extend across the exterior surfaces of the

adjacent side walls

14 and 16 and is also understood to traverse the hidden walls to encircle the carton.

The band 20 is free from connection to any of the exterior surfaces of these side walls and is connected to the canton only at the corner 22 of the carton at the conventional lapped manufacturers joint. The band 20 can be printed in a decorative manner to lend a seasonal character to the carton, but the band can also be separated from the carton 10 merely by inserting a knife blade or equivalent between the band and the carton body and cutting across the band. The loose ends of the band near the film confinement at the corner 22 can be trimmed as desired, to leave a conventional canton having unmarred exterior surfaces.

Referring now to the FIGS. 2-7, the manner of secur- 3,445,053 Patented May 20, 1969 ing :the film band to the carton is shown. FIGS. 2-7 show, to a reduced scale, a typical carton blank 30 suit-able for forming the carton 10 shown in FIG. 1. The blank 30 includes consecutively hinged

side wall panels

12, 14h, 12h and 14 of the opposed pair of

side walls

12 and 14, and a lapped glue flap 32 extending from the free end edge of side wall panel 12. Top and bot-

tom closure panels

34, 35, 36, 37, are hinged to the end edges of the

side wall panels

12, 14h, 12h, and 14, respectively, and form end closure walls for the tubular carton as is well-known in the art.

The blank 30 is conventionally formed to a tubular structure by folding the side wall panels along the hinge lines 38 and 39 to lap the side wall panel 14 over the glue flap 32. By applying an adhesive between the lapped glue flap and the side wall panel, a lapped manufacturers joint is formed to hold the blank as a tubular carton structure. The tubular structure is shipped fiat to the user, where it is opened and loaded when desired. After the carton is loaded, the end closure panels 34-37 are folded at right angles to the side wall panels and are secured together for providing the end closure walls.

According to this invention, the display band 20 is secured to the carton blank 30 before the latter is folded to and secured as a tubular structure. In order to show how this is done, the carton blank is illustrated in FIGS. 2-7 in progressive stages of fabrication, the carton blank progressing from FIGS. 2 and 5 to the right. In the FIGS. 2-4, the carton blank is flat with the printed or outside carton side up. In FIG. 3, a strip of tape 40 is secured to the underside of side wall panel 14 on its inside or unprinted side in a manner to present an endward portion 42 which projects beyond the end edge of the side wall panel. The tape can be conventional adhesive tape, transparent or otherwise, so it readily sticks to the panel 14 and further exposes a sticky surface at the endward section 42. A line of adhesive 44 is also applied to the top of the glue flap 32 at this point.

In FIG. 4, the display band 20 is placed on the top side of the blank 30 to cover part of the exterior printed surfaces of the carton, and further to extend over the exposed sticky surfaces of the glued glue flap 32 and the endward portion 42 of the tape 40. The film sheet thus is bonded at its ends to the carton blank 30, and the central section of the sheet is free from and not connected to the carton side walls.

After the film sheet is secured to the blank, the blank assembly is flipped over by appropriate means to the position shown in FIGS. 5-7 where the printed carton side is faced downwardly and the band 20 is located on the underside of the blank. In FIG. 5, the underside of glue flap 32 and the top side of the endward portion 42 of the tape 40 are coated with adhesive strips 46 and 48. The blank progresses along to where in FIGS. 6 and '7, the side wall panel 12 and glue flap 32, and endward portion 42 of the tape and the band secured thereto are folded inwardly against the underlying portions of the blank. The end portion 42 of the tape thus is adhesively bonded to the inside surface of the side wall panel 14. The side wall panel 14 is then folded fiat against its underlying panel 12h to overlap and be bonded to the glue flap 32. This defines the tubular carton, as was previously mentioned, and secures the film band to the blank only at its ends between the lapped manufacturers joint.

It is possible to eliminate the added step of applying adhesive strip 48 to the exposed end portion 42 of the tape 40 by using a tape that is adhesive coated or sticky on both sides. Such tape is commercially available and would cause the exposed endward portion 42 of the tape to be adhered to the underlying tape and to the side wall panel 14 merely by folding the endward portion over.

Commercial equipment can be used for applying the tape to the blank, for locating the sheet on the blank, and for gluing and folding the blank. Thus, the method of affixing the film sheet can be economically practiced on fabricating equipment readily available and at the disposal of most carton manufacturers.

What is claimed is:

1. In a package including a paperboard carton and a readily detachable, decorative outer wrapping thereon, the combination of:

(a) a carton formed from a unitary blank of foldable paperboard including:

(i) a plurality of side wall panels hingedly interconnected at their side edges;

(ii) a relatively narrow glue panel hingedly connected at one side edge to an adjacent side edge of one of the side wall panels at one end of said blank and having its outer surface adhesively connected to the inner surface of a marginal side portion of another side wall panel at the other end of said blank in a lap joint which has only two thicknesses of paperboard, to form a tubular structure;

(iii) closure flaps hingedly connected .to end edges inner surface of said marginal side portion of said other side wall panel at said lap joint;

(d) one of said sheet end portions being adhesively secured to the other surface of said glue panel and the other end portion extending beyond said free marginal side portion of said other side wall panel;

(e) a relative thin strip of flexible material underlying and being adhesively secured to said other end portion of said sheet and the inner surface of saidmarginal side portion of said other'side wall panel and being reverse folded approximately 180 degrees upon itself to accommodate the interposition of said other end portion of said sheet between said other side wall panel and said glue panel at said lap joint, so that the sheet of decorative material can be removed from said carton without marring the outer surface of said carton.-

References Cited UNITED STATES PATENTS 2,192,423 3/1940 Ward et a1 40312 X 2,285,212 6/1942 La May 403 12 2,950,040 8/1960 Bolding 229-38 3,026,014 3/ 1962 Cornell et 'al. 229-38 3,335,937 8/1967 Kramer 2 22938 3,335,938 8/1967 Kramer 229-38 EARL M. BERGERT,Prin 1ary Examiner.

3 R. A. KILIJWORTH, Assistant Examiner.

US. Cl. X.R.