JP2004026189A - Re-sealable packaging bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag which can prevent a laceration from proceeding beyond the end of an incision even when an inner lid or a re-sealable label closing an outlet for a packaged article is pulled hard. <P>SOLUTION: An almost U-shaped incision 104 is formed on the surface 101 of the trunk 100 of the packaged bag W1, and the re-sealable label 103 is glued on the incision 104 to cover it up. When the label 103 is peeled off, the inner lid 107 sticking on an adhesive surface of the label 103 is cut off via the incision 104 to form the outlet 106 for taking out the packaged article. A lateral seal 109 is formed in an interposing position, which is near each end 104a, 104b of the incision 104, on the fixing end of the label 103. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a resealable packaging bag suitable for storing a large number of articles made of, for example, candy, chocolate, hail, and other confectionery roses in a resealable manner.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a wet tissue packaging form has been widely and widely known as one in which a take-out port for taking out contents contained in a packaging bag can be resealed in a sealed state. As such a packaging bag, for example, a sealed packaging bag disclosed in Japanese Utility Model Publication No. 6-24377 is known.
[0003]
According to the sealed packaging bag disclosed in Japanese Utility Model Publication No. 6-24377, a substantially U-shaped cut line is provided on the upper surface of the packaging material, and the sheet-like outer lid is re-adhered so as to cover the cut line. Glued with a possible adhesive. When the outer lid is lifted at the time of opening, the inner lid, which is the internal area of the score line, is cut off together with the outer lid, thereby providing an opening on the upper surface of the packaging material. An article can be taken out from this opening, and the opening can be resealed by attaching an outer lid. Since the opening can be resealed in a hermetically sealed state, contact with the outside air can be cut off, and drying of the article and the like can be prevented.
[0004]
Further, according to the sealed packaging bag disclosed in Japanese Utility Model Publication No. 6-24377, the end of the cut line is formed to be branched into two branches. Thereby, even if the inner lid is pulled in the peeling direction at the time of opening, since the pulling force is bisected at the forked branch, it is possible to prevent the `` tear '' from progressing beyond the end of the score line. It has become.
[0005]
[Problems to be solved by the invention]
However, in the above-mentioned conventional sealed packaging bag, when the inner lid is forcibly pulled with a predetermined force or more, the inner lid cannot withstand the pulling force split in the fork, and the end of the cut line is not provided. This is a problem because it may not be possible to sufficiently prevent the progress of “scissors” beyond the limit. As described above, if the “cut” proceeds beyond the end of the cut line to the outside of the range of attachment of the outer lid, there is a problem since the sealing property of the packaging bag cannot be secured.
[0006]
The invention of the present application has been made in view of such a problem, and even when the inner lid or the resealable label that closes the outlet of the article is strongly pulled, the cut portion (cut line) is formed. It is an object of the present invention to provide a resealable packaging bag which can more reliably prevent the tearing from progressing beyond the end of the bag.
[0007]
[Means for Solving the Problems]
The first invention of the present application is a resealable packaging bag as described in claim 1.
Therefore, when the resealable label is lifted and the inner lid is peeled off from the body of the bag, even if the inner lid is strongly pulled in the peeling direction, each end of the notch is cut. Since the seal portion is reinforced on the extension extending beyond the portion, the progress of "slit" beyond each end of the cut portion is effectively prevented. In addition, since the re-sealable label is attached so that at least a portion covering each end of the cut portion is interposed in the seal portion, a “tear” is provided between each end of the cut portion and the seal portion. Does not exceed the range of sticking the resealable label, even if reseal is repeated.
[0008]
A second invention of the present application is a resealable packaging bag as described in claim 2.
Therefore, the extension line is set so as to intersect the seal portion at a position near each end of the cut portion before reaching the seal portion. Then, for example, even if the inner lid portion is strongly pulled in the peeling direction and a `` slice '' occurs beyond each end of the cut portion, the `` slice '' is transmitted to the seal portion in a short path. Will be reached. This not only makes it possible to minimize the progress of such "cutting", but also makes it possible to reduce the size of the resealable label that can be attached in anticipation of "cutting", so that materials for packaging bags can be used. Costs can be reduced.
[0009]
The third invention of the present application is a resealable packaging bag as described in claim 3.
Therefore, since each end of the cut portion is close to the seal portion formed in the transverse cross section of the body portion or the seal portion formed to intersect with the seal portion, the end portion of the cut portion exceeds the end portion of the cut portion. Further, the progress of “slitting” is prevented. In addition, the "seal part formed in the cross section of the trunk | drum" here points out the horizontal seal part in a pillow packaging bag, for example. The “seal portion formed crossing the seal portion” refers to, for example, a vertical seal portion formed crossing the horizontal seal portion.
Further, such a resealable packaging bag has an effect that it can be continuously produced by various bag making and filling machines such as a vertical bag making and filling machine or a horizontal bag making and filling machine.
[0010]
A fourth invention of the present application is a resealable packaging bag as described in claim 4.
Therefore, not only is it easy to open by lifting the knob portion, but also because the bag-side surface of the knob portion is a non-adhesive surface, fingers and the like do not stick to each other, which is convenient.
[0011]
A fifth invention of the present application is a resealable packaging bag as described in claim 5.
Therefore, after the resealable label has been peeled off from the body of the bag even once, it can be easily visually recognized that the resealable label has been peeled off. Mischief can be effectively prevented.
[0012]
A sixth invention of the present application is a resealable packaging bag as described in claim 6.
Therefore, even when the resealable label is peeled off from the body of the bag, a part or all of the portion of the resealable label interposed in the seal portion is firmly held on the body of the bag by heat welding. As a result, the resealable label does not separate from the body of the bag, and positioning and the like when the resealable label is re-attached become unnecessary, so that the usability is good.
[0013]
A seventh invention of the present application is a resealable packaging bag as described in claim 7.
Therefore, it is possible to set a large take-out port without increasing the length of the re-sealable label so much, and it is easy to take out the article. In addition, since the resealable label is not stuck over the entire length of the bag, a large printing portion can be secured on the body of the bag, and the appearance of the bag is not impaired.
[0014]
The eighth invention of the present application is a resealable packaging bag as described in claim 8.
Therefore, each end of the cut portion crosses or approaches the seal portion provided on the back surface of the bag, and a resealable label covering the cut portion is attached, so that printing on the front surface of the bag is restricted. It does not affect the appearance of the bag. In addition, since the outlet for taking out the article is located on the back of the bag, the outlet is located on the back side when the product is displayed at the store, and it is difficult for mischief such as mixing of foreign matter.
Further, in a rectangular bag in which the length of the vertical seal portion is longer than that of the generally used horizontal seal portion, an outlet can be provided along the vertical seal portion. The article take-out port can be made large over the entire length in the direction.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a state where the packaging bag W1 in the present embodiment is opened. FIG. 2 is a diagram illustrating the front surface 101 of the packaging bag W1, and FIG. 3 is a diagram illustrating the back surface 102 of the packaging bag W1.
As shown in FIGS. 1 to 3, the packaging bag W1 (resealable packaging bag) includes a cylindrical body 100 formed of a synthetic resin film (eg, a polypropylene film). On the front surface 101, a take-out port 106 for taking out stored articles such as confectionery is formed.
[0016]
At the upper edge and the lower edge of the body 100 where the film sheet is formed into a tubular shape, a horizontal seal portion 109 is formed so as to close the cross section of the body 100. The horizontal seal portion 109 is formed by sandwiching and welding a position before and after sandwiching the article supplied in the tubular film constituting the body portion 100 by, for example, a heating seal body provided in a bag making and filling machine. is there. An uneven engagement groove is formed on the sealing surface of the heating seal body, and an uneven groove is formed on the surface of the horizontal seal portion 109 by the engagement of the engagement groove.
[0017]
Further, a vertical seal portion 111 extending in a direction perpendicular to the horizontal seal portion 109 is formed at both overlapping end portions of the cylindrically formed film sheet. The vertical seal portion 111 is formed, for example, by being sandwiched and welded by a heat sealing body provided in a bag making and filling machine. An uneven engagement groove is also formed on the sealing surface of the heat seal body, and an uneven groove is formed on the surface of the vertical seal portion 111. As a result, both ends in the longitudinal direction of the body 100 are closed by the vertical seal 111 in a state of high sealing.
[0018]
A substantially U-shaped cut portion 104 is formed at a substantially central position in the width direction of the body portion 100 corresponding to the one horizontal seal portion 109 in the packaging bag W1. The cut portion 104 is formed from a perforation formed so that a part of the substantially U-shape does not penetrate, or a half-cut score line that does not penetrate to one of the inner surface or the outer surface of the packaging bag W1. The ends 104a, 104b of the substantially U-shaped cut portion 104 are formed so as to be located close to the horizontal seal portion 109, and the respective ends 104a, 104b of the cut portion 104 are formed. Are set so that the extension lines 110a and 110b intersect the horizontal seal portion 109, and the internal region of the cut portion 104 is formed as the inner lid portion 107.
[0019]
A resealable label 103, which has been subjected to various sticking treatments such as application of a resealable adhesive on a sticking surface to the surface 101 of the packaging bag W1, is attached to an upper portion covering the cutout portion 104. I have. The resealable label 103 is provided with a protruding knob 105 protruding substantially at the center in the width direction at the end on the opening side, and the back surface of the knob 105 (the surface of the bag on the trunk 100 side) Has a non-adhesive surface. Further, the fixed-side end, which is the end opposite to the end (opening-side end) of the re-sealable label 103 on which the knob 105 is provided, is located at the position interposed in the horizontal seal portion 109. It is stuck on.
[0020]
Further, the fixed-side end of the resealable label 103 attached to a position interposed between the horizontal seal portions 109 is heat-welded to the horizontal seal portion 109 over a partial or entire range. Is also good. In this case, the resealable label 103 and the bonding surfaces of the horizontal seal portions 109 of the resealable label 103 are subjected to a heat-sealable process, so that the resealable label 103 The surface 101 of the packaging bag W1 can be welded.
[0021]
The inner cover 107, which is an internal region of the cutout 104, is set so that its width La is larger than its length Ma. Similarly, the width Lb of the resealable label 103 is set to be larger than the length Mb. Further, the width La of the inner lid 107 and the width Lb of the resealable label 103 are set to be at least 1/3 the width Lc of the packaging bag W1. Note that the “width dimension” here refers to a dimension in a direction in which a cross section of the body 100 formed into a cylindrical shape is closed, and the “length dimension” refers to a direction of the width dimension. It refers to the dimension along the orthogonal direction.
[0022]
When the packaging bag W1 obtained by the above-described configuration is opened, the resealable label 103 is peeled off from the front surface 101 so as to lift the knob 105. In this case, since the back surface of the knob 105 is a non-adhesive surface, opening can be easily performed, and even if the knob 105 is pinched at the time of opening, a fingertip adheres to the back of the knob 105. I can't.
[0023]
As shown in FIG. 1, when the resealable label 103 is peeled off from the front surface 101, the inner cover 107, which is an internal region of the cutout 104, is re-attached so as to cover the cutout 104. It is lifted together with it attached to the sealing label 103. As a result, the inner lid 107 is cut off from the surface 101 of the body 100 along the cutout 104, and an outlet 106 for taking out an article is formed on the surface 101 of the packaging bag W1. At this time, even when the inner lid portion 107 is strongly pulled in the peeling direction together with the resealable label 103, the inner lid portion 107 is placed on the extension lines 110a, 110b beyond the ends 104a, 104b of the cut portion 104. Since the horizontal seal portion 109 formed by heat-welding the film is formed, the progress of “cutting” of the film beyond each end 104a, 104b of the cut portion 104 is effectively prevented. Further, even if a “slit” has occurred, the “slit” reaches the horizontal seal portion 109 in a short path beyond each end 104a, 104b, and minimizes the progress of the “slit”. The size of the resealable label 103 that can be stuck and supposedly "cut" can be reduced, so that the material cost of the packaging bag W1 can be suppressed.
[0024]
The resealable label 103 has a fixed-side end opposite to the end (opening-side end) on which the knob 105 is lifted and opened upward, and a horizontal seal portion 109. Therefore, even if the re-sealable label 103 is peeled off from the surface 101 of the body 100, the cut including the "slit" up to the horizontal seal 109 is cut off. The portion 104 can be reliably covered with the resealable label 103. As described above, even when the resealable label 103 is pulled by a strong force at the time of opening, the cutout portion 104 does not reach the outside of the range of the resealable label 103, and the resealable label 103 is not sealed. Is repeated, the sealing property of the packaging bag W1 can be maintained satisfactorily.
Also, if the resealable label 103 attached so as to be interposed in the horizontal seal portion 109 is heat-welded together with the horizontal seal portion 109, the fixed-side end of the resealable label 103 is attached to the surface 101 of the body 100. Since the resealable label 103 is firmly held, the resealable label 103 does not separate from the body 100, and the resealable label 103 is re-adhered to position the sealing opening 106 for sealing. It is convenient because it becomes unnecessary. Furthermore, the width dimension La of the inner lid portion 107 and the width dimension Lb of the resealable label 103 are set to be at least 1/3 of the width dimension Lc of the packaging bag W1, and the respective length dimensions By setting them so as to be larger than Ma and Mb, the outlet 106 for taking out the accommodated articles can be provided without increasing the lengths Ma and Mb of the inner lid 107 or the resealable label 103 so much. It can be set large, making it easy to take out articles. In addition, since the article outlet 106 can be set large without attaching the resealable label 103 over the entire length of the packaging bag W1, the body 100 is provided with a printing unit for printing a design or a pattern. Can be secured large. When a large printing portion can be secured, there is an effect that the design property of the packaging bag W1 is not impaired.
[0025]
The following embodiment can be adopted for the resealable label 103.
As shown in FIG. 4, in the packaging bag W2 in the present embodiment, separation lines 212a and 212b for separating the left and right corners 208a and 208b are provided at the opening side end of the resealable label 203. Is formed. The separation lines 212a and 212b are formed by zigzag lines or wavy lines formed by perforations formed so as to be partially non-penetrating, half-cut notch lines that do not penetrate to the label back surface, and the like, and are resealed. When the label 203 is separated from the surface 201 of the body 200, the left and right corners 208a and 208b are separated at the separation lines 212a and 212b with the separation lines 212a and 212b as boundaries. By visually checking whether the left and right corners 208a, 208b are separated at the separation lines 212a, 212b, it is possible to determine whether the resealable label 203 has been peeled off from the surface 201 of the body 200. It has become.
[0026]
Further, required marks 213a and 213b are printed on the surface of the resealable label 203 so as to straddle the main body and the corners 208a and 208b of the resealable label 203 with the separation lines 212a and 212b interposed therebetween. I have. As a result, even when the peelable re-sealable label 203 is adhered to the surface 201 of the body 200 again, the deviation of the substantially circular marks 213a and 213b is visually recognized, whereby the re-sealable label 203 is already peeled. Can be easily determined.
[0027]
Further, for example, by attaching a small label made of a paper base material or the like from above on at least one of the separation lines 212a and 212b, it is possible to more reliably determine that the label has been opened.
In this manner, by performing various processes that can determine that the resealable label 203 has been peeled, mischief such as mixing of a foreign substance into the packaging bag W2 can be effectively prevented.
[0028]
Further, as for the resealable label 103 and the cutout portion 104, the following embodiments can be adopted.
As shown in FIG. 5, in the packaging bag W3 in the present embodiment, a vertical seal portion 311 is formed on the back surface 302 of the trunk portion 300 of the bag. This vertical seal portion 311 is formed substantially orthogonal to each of the upper and lower horizontal seal portions 309 formed in the cross section of the body portion 300 of the bag. Note that the vertical seal portion 311 may be formed so as not to be orthogonal to the horizontal seal portion 309 formed in the cross section of the body portion 300 but to intersect obliquely.
A substantially U-shaped cutout 304 is formed near the center of the back surface 302 of the bag between the upper end and the lower end, and each end 304a, 304b of the cutout 304 is vertically sealed. It is close to the part 311.
[0029]
As shown in FIG. 6, the vertical seal portion 311 is a joint seal formed by heat-welding both ends of the cylindrical body 300 with a heating seal body, and the welded polymer piece is attached to the back surface of the body 300. It is formed so as to fall along 302. A resealable label 303 is attached to the back surface 302 of the body 300 so as to cover the cutout 304. The resealable label 303 has a fixed-side end interposed in the vertical seal portion 311 and an open-side end positioned on the opposite side to the side on which the overlapped piece of the vertical seal portion 311 is fallen. It is stuck on. When the resealable label 303 is peeled off from the back surface 302, an outlet for taking out an article is provided along the substantially U-shaped cut portion 304.
[0030]
According to the packaging bag W3 configured in this manner, an outlet for taking out an article is provided on the back surface 302 of the body 300, so that printing of a design or pattern on the surface 301 of the body 300 is not restricted. It does not affect the appearance viewed from the surface 301 of the body 300.
In addition, since the outlet for taking out the article is located on the back surface 302 of the body 300, the outlet is located on the back side when the product is displayed at the store, and for example, mischief such as mixing of foreign matter is prevented. It is hard to be done.
Furthermore, since an outlet can be provided along the vertical seal portion 311, in the case of a general packaging bag W3 in which the vertical seal portion 311 is longer than the horizontal seal portion 309, the overall length in the longitudinal direction of the body portion 300 And a large outlet for articles can be secured.
In the present embodiment, an example is shown in which both ends of the cylindrical body 300 are overlapped in a palm shape to form the vertical seal portion 311 (see FIG. 6). As shown, the vertical seal portion 311 may be formed by an envelope seal in which both ends of the body 300 are overlapped in the butting direction. In this case, the label 300 may be stuck so that the opening-side end of the resealable label 303 is located on the side of the vertical seal portion 311 opposite to the edge of the body portion 300 superimposed on the upper surface side. preferable.
[0031]
Note that the present invention is not limited to the above embodiment.
In the above-described embodiment, an example in which the entire inner lid portion 107 is covered with the resealable label 103 has been described. However, for example, as in a packaging bag W4 illustrated in FIG. It is sufficient to be attached to the area that covers the 404, and it is not necessary to be attached to the area that covers the entire inner lid 407. In addition, the shape of the resealable label is not limited to the embodiment, and may be determined as needed.
[0032]
In the above-described embodiment, the example in which the back surface of the knob 105 is a non-adhesive surface has been described. However, the present invention can be applied to a case where the knob portion 105 has an adhesive surface. Further, the resealable label 103 does not necessarily need to be provided with such a knob 105.
[0033]
In the above-described embodiment, an example in which the vertical seal 111 and the horizontal seal 109 are formed in the packaging bag W1 has been described. However, the present invention can be applied even when only one of them is formed.
The “seal portion” in the present invention is not limited to the vertical seal portion 111 or the horizontal seal portion 109, and any packaging bag provided with a “seal portion” for closing any part of the body portion 100 may be used. The invention is applicable.
[0034]
【The invention's effect】
As described above, according to the present invention, even if the inner lid or the resealable label that closes the outlet for taking out the article is strongly pulled, the tearing proceeds beyond each end of the cut section. It is possible to provide a packaging bag which can prevent the occurrence of the above.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a packaging bag according to an embodiment is opened.
FIG. 2 is a diagram illustrating a surface of a packaging bag according to the embodiment.
FIG. 3 is a diagram illustrating a back surface of the packaging bag according to the embodiment.
FIG. 4 is a diagram showing a surface of a packaging bag in another embodiment of a resealable label.
FIG. 5 is a diagram showing a back surface of a packaging bag in another embodiment of a resealable label and a cut portion.
FIG. 6 is a sectional view taken along line XX of the packaging bag in FIG.
FIG. 7 is a view showing a modified example of a vertical seal portion.
FIG. 8 is a diagram showing a modified example of the shape of the resealable label.
[Explanation of symbols]
100, 200, 300 Body portions 101, 201, 301 Front surface 102, 302 Back surface 103, 203, 303, 403 Reclosable labels 104, 304, 404 Cut portion 105 Knob portion 106 Outlet 107, 407 Inner lid portion 109, 309 Horizontal seal part (seal part)
111, 311 Vertical seal part (seal part)
104a, 104b, 304a, 304b End portions 110a, 110b Extension lines 208a, 208b Corner portions 212a, 212b Separation lines 213a, 213b Marks W1, W2, W3, W4 Packaging bag (resealable packaging bag)

Claims (8)

A resealable label is adhered so as to cover the notch formed in the body of the bag, and when the resealable label is peeled off, the inner lid, which is an internal region of the notch, is attached to the body of the bag. A re-sealable packaging bag configured to be peeled off in a state leaving one end from the part to provide an outlet for articles,
Each end of the notch crosses or approaches the seal portion of the bag,
The resealable packaging bag, wherein the resealable label is adhered so that at least a portion covering each end of the cut portion is interposed in the seal portion. A resealable packaging bag according to claim 1,
A resealable packaging bag, wherein each end of the cut portion is close to a seal portion and an extension line intersects the seal portion. A resealable packaging bag according to claim 1 or claim 2,
The resealable packaging bag, wherein the seal portion is a seal portion formed on a cross section of the body portion or a seal portion formed crossing the seal portion. The packaging bag according to any one of claims 1 to 3, wherein
A resealable packaging bag, characterized in that a tab is protruded from an end of the resealable label on the peeling side, and the bag-side surface of the tab is a non-adhesive surface. A resealable packaging bag according to any one of claims 1 to 4, wherein
A resealable packaging bag, which has been subjected to a process for visually confirming that the resealable label has been peeled off from the body of the bag. A resealable packaging bag according to any one of claims 1 to 5, wherein
A resealable packaging bag, wherein the resealable label has a part or the entirety of an intervening portion in the seal part, which is thermally welded at the seal part. A resealable packaging bag according to any one of claims 1 to 6, wherein:
Each of the inner lid portion and the resealable label has a width dimension larger than a length dimension and is set to a width dimension that is at least 1/3 of a bag width. Packaging bag. A resealable packaging bag according to any one of claims 1 to 7,
The resealable packaging bag, wherein the seal portion is a seal portion formed on a back surface of the bag so as to intersect with a seal portion formed in a cross section of a trunk portion of the bag.

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