JPH05664U - Wrap heat shrink wrap with opening function - Google Patents

Abstract

(57) [Abstract] [Purpose] Pull the unsealing tape to completely cut the entire circumference of the package so that the heat-shrinkable package can be easily opened or divided into small parts. [Structure] An article to be packaged is wrapped by a heat-shrinkable film having an opening tape attached so as to cover a perforation row and heat-shrink wrapped, and the edges of the wrapped film are overlapped in an envelope-attached shape. It adheres by heat blocking.

Description

[Detailed description of the device]

[001]

[Industrial field of application]

  The present invention relates to a heat-shrinkable package having an opening function that can be easily opened. It is something. In particular, it is effectively used for packaging products that require subdivision. is there.

[002]

[Prior art]

  Conventionally, as a method for opening a heat-shrinkable package, perforation has been applied. There was a problem, but the perforation holes became large in the contraction tunnel, , The trouble of breaking the bag from the perforation part occurred during transportation I was there.   To solve these problems, Japanese Utility Model Publication No. 3-23076 is available. There is. That is, a heat-shrinkable package in which an opening tape is attached to the perforation part. The body is being developed. However, the package is torn by pulling on the tear tape. However, the opening tape is cut at the seal on the package, and the entire package is I could not completely cut the lap.   In addition, a heat-shrinkable film was wrapped around the object to be packaged and the edge of the film was attached to an envelope. Passing through the shrinking tunnel and heat shrinking just by overlapping A packaging method has been used in which the overlapping portion is heat-blocked. Incidentally, this At this time, both ends of the package are opened, but the heat-shrinkable film shrinks and The body is well held so that it does not stick out. (Hereafter, The heat-shrinkable package obtained in this manner is referred to as a "wound heat-shrinkable package". )

[003]

[Problems to be solved by the device]

  In this invention, the entire circumference of the heat shrinkable package is completely drawn by pulling the opening tape. It has an opening function that can be cut into pieces and easily opened or subdivided. We provide wrapped heat-shrinkable packages that have a good packaging finish and are not easily broken during transportation or transportation. The purpose is to do.   In the present invention, "subdivision" means the following. For example, Dan Bo Place several cans of juice on the tray and heat the pallets side by side by lining up two or three of them. It is said that the contracted package is subdivided into each tray at a wholesaler or the like. On this occasion, Even after subdividing, each tray is covered with heat shrinkable film, Also, those that are bound are preferable.

[004]

[Means for Solving the Problems]

  The present invention has taken the following measures to solve the above problems. That is, packaged The object is provided with one or more pairs of two or more rows of perforations. Heat-shrinking tape with unsealing tape attached to cover each set Wind the perforation row in the winding direction with a flexible film. The winding that is attached and heat-shrink wrapped, and is overlapped in the form of an envelope. The film edges are adhered by heat blocking. And better openability In order to make it easier, at least the opening tape attached to the heat-shrinkable film A cut for opening the opening that penetrates the heat-shrinkable film and the opening tape is provided in part (Claim 2) is preferable. For example, wrapping flaps that are stacked in an envelope At the end of the unsealing tape on the outer film edge of the film, start opening Those provided with a notch (claim 3) are more preferable.

[0095]   The contents of the present invention will be described below with reference to the drawings.   FIG. 1 is a perspective view showing an example of a wound heat-shrinkable package having an opening function of the present invention. Is. First, the heat-shrinkable film (4) is a set of two rows of perforations (2). And a tape (3) for opening is attached to the perforation part. It is attached. Then, such a heat-shrinkable film makes the packaged object -The perforations are wound so that they are parallel to the winding direction, and heat shrinks. ing. Moreover, the edges (5) and (6) of the wound film of the film during heat shrinkage Heat blocking occurs.

[0096]   Figure 2 shows the heat-shrinkable film on a part of the unsealing tape attached to the heat-shrinkable film. An opening machine provided with a notch (7) for opening the opening which penetrates the film and the opening tape. It is a perspective view which shows an example of the wrapped heat-shrink package (claim 2) which has the function. or, FIG. 3 shows a notch (7) for opening the opening provided in a part of such an opening tape. It is a schematic diagram showing an example of a shape of.

[0097]   Figure 4 shows the outer edge of the wrapping film edges that are stacked in an envelope. Notch for opening opening at the end of the opening tape attached to the edge (5) of the opened film One of the wound heat-shrinkable packages (Claim 3) provided with (7 ') and having an opening function. It is a perspective view which shows an example.   In addition, FIG. 5 shows that the edge of the unsealing tape of the film edge portion (5) thus laminated is set. It is a schematic diagram showing an example of a shape of a notch (7 ') for opening opening to be opened.

[0085]   The heat shrinkable film used in the present invention is not particularly limited. Any of those conventionally used for heat shrink packaging can be used. Particularly preferably, Multi-layer heat-shrinkable films with different melting points of the resins used for both surface layers are preferably used It For example, multi-layer products made of polypropylene resin and polyethylene resin or high density Examples include multi-layer products made of polyethylene resin and low-density polyethylene resin.

[0109]   Further, the unsealing tape of the present invention may be prepared by melting the resin used in the heat shrinkable film. It is made of a resin higher than the point and has a high tensile strength in the vertical direction. Those that are easily torn are preferred. For example, high-density polyethylene or polypropylene It is made of polyester or nylon, and is preferably stretched . The reason for this is that if the resin is one with a high melting point At the time of unsealing, since the part where the unsealing tape is interposed does not cause heat blocking This is because the envelope-attached overlapping portion can be easily cut. or The reason why the tensile strength in the vertical direction is strong is that the tape is unlikely to be cut when the tape is opened. Furthermore, if it is easy to tear in the vertical direction, cut it along the perforations when opening. This is because it is easy to be refused.

[0101]   The shape of the perforation is not particularly limited, but one set is two It is necessary that the space between rows is smaller than the width of the opening tape. If there is only one row of perforations, pull the tear tape on it. Even if it is stretched, the perforation is unlikely to cause disconnection.   In addition, how many pairs of perforations are to be provided depends on the items to be packed. It may be appropriately determined depending on the size and shape. It is also decided by the number of subdivisions, etc. Is determined.

[0111]   In addition, even if the unsealing tape is attached in the film state before packaging, it does not shrink by heat. It may be pasted after packaging, but it was pasted when in film state The packaging process is simpler and the packaging finish is better. In this case, open the The wrap has the same heat-shrinking characteristics as the heat-shrinkable film Is preferred.   The unsealing tape may be on the outside or inside of the package, but on the outside It is more preferable to come because the perforation holes are covered and the appearance is improved.   When the unsealing tape is attached to the inside of the package, the unsealing tape is placed vertically. It must be easy to tear in the direction.

[0112]

[Action]

  The wrapping heat-shrinkable package with the opening function of the present invention pulls the opening tape. The unsealing tape is cut at the overlapping part of the envelope sticking Without, it is possible to completely cut the entire circumference of the package.   That is, first of all, it is attached to the edge of the film which is overlapped with the envelope-attached overlapping portion. Pulling on the attached unsealing tape will cause thermal blocking in the overlap. Since it does not occur, it can be easily cut like other parts without being affected by the inner overlapping part. You can refuse. Next, the edge of the film that was overlapped in the envelope pasted part When pulling the unsealing tape attached to the part, the outer overlapping part has already been cut Since it is not affected by the outer overlapping part, it can be easily cut like other parts. You can

[0113]

【effect】

  The wrapping heat-shrinkable package with the opening function of the present invention passes through the shrink tunnel. There is no problem that the perforation holes expand when they are made, and the packaging finish is good. It is good and does not break from perforation during transportation and transportation. Also opened It is possible to completely cut the entire circumference of the package by pulling the tape for use. Therefore, it is easy to open the package. Furthermore, the fact that the entire circumference of the package is completely cut means that It is very useful in subdivision work.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a wound heat-shrinkable package having an opening function.

FIG. 2 is a perspective view showing an example of a wrapping heat-shrinkable package having an opening function in which a notch for opening the opening is provided in a part of the opening tape.

FIG. 3 is a schematic view showing an example of the shape of a notch for opening the opening provided on a part of the opening tape.

FIG. 4 is a perspective view showing an example of a wound heat-shrinkable package in which an opening start cut is provided at an opening tape end of an outer edge of a film.

FIG. 5 is a schematic view showing an example of the shape of a notch for opening the opening, which is provided at the end of the opening tape at the edge of the film that has been superposed on the outside.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Packaged object 2 Perforation 3 Opening tape 4 Heat shrinkable film 5 Of the wound film edges overlapped in an envelope sticking, the film edge part 6 which is overlapped outside Among them, the film edge portion 7 that is laminated inside is a notch for opening opening 7 ′ provided in a part of the tape for opening, and the opening tape that is attached to the edge portion 5 of the film that is laminated outside Notch for start

Claims (3)

[Scope of utility model registration request] 1. An unsealing tape (1) in which the article (1) to be packaged is provided with at least one set of perforations (2) consisting of one set and two or more lines, and each set of the perforation lines is covered. The heat-shrinkable film (4) to which 3) is attached is wound so that the perforation rows are parallel to the winding direction and heat-shrinked, and the edges of the wound film are overlapped in an envelope-attached shape. (5) and (6) are wound heat-shrinkable packaging bodies having an opening function that are adhered by heat blocking. 2. The opening start cut (7) penetrating the heat-shrinkable film and the unsealing tape is provided in at least a part of the unsealing tape attached to the heat-shrinkable film. A wrapping heat-shrinkable package with an opening function. 3. A wrapping film edge (5) in which an unsealing opening notch (7 ') provided on at least a part of an unsealing tape stuck to a heat-shrinkable film is overlapped in an envelope pasting shape, The outer edge of the film edge (5) of (6) is provided at the end of the opening tape.
A wound heat-shrinkable package having the unsealing function described in.