JP2017077913A - Packaging bag having re-sealability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag having a high re-sealability which has high quality retaining property of a package to be packed before use.SOLUTION: In a packaging bag, a front film and a rear film are overlapped, a bag side easy cutting-plane line 7, which is substantially parallel to a top seal portion 3 of a bag body of which a peripheral edge part is sealed, is provided below the top seal portion, an easy detachment processing part 8 is so provided on the front film as to reach the bag side easy cutting-plane line, an adhesive label 9 is so bonded as to bridge from above to below the easy detachment processing part, and a label side easy cutting-plane line 10 is so provided on the adhesive label as to be positioned above the bag side easy cutting-plane line and overlapped on the easy detachment processing part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging bag having resealability. In particular, the present invention relates to a packaging bag having resealability in which the opening portion of the bag is folded downward, stopped at the adhesive portion, and resealed.

  As a packaging bag that can be resealed after opening, a packaging bag with a notch that becomes an opening on one side of the packaging bag and covered with an adhesive label is often used for packaging wet tissue etc. It has been.

  For example, Patent Document 1 tightly encloses an article to be packaged with a non-breathable sheet-like packaging material, and a substantially U-shaped cut line is attached to the upper piece of the packaging material, and on the upper surface thereof, A hard sheet made of a sheet material harder than the packaging material and having a large opening formed at a center portion thereof excluding a terminal portion of the U-shaped cut line is fixed, and further, the opening is formed from above. By adhering a sheet-like outer lid with a size covering the upper surface of the hard sheet and the upper surface of the packaging material facing above the opening of the hard sheet to the extent that it can be peeled and re-adhered, with an adhesive, When the outer lid is peeled off, the inner lid, which is the inner area of the score line, is peeled off from the packaging material together with the outer lid, leaving a continuous connection portion with the packaging material, and then an opening for taking out the package is formed. A sealed package is disclosed. It has been.

  In the packaging bag having such resealability, a cutting sheet is attached to the upper piece of the packaging material, and a hard sheet having a larger opening than the U-shaped cutting line is fixed on the upper surface thereof, Furthermore, since the sheet-like outer lid with a size covering the opening is adhered with an adhesive such as an adhesive from above, the opening can be exposed only by rolling the sheet-like outer lid. Since the cut line that can be ventilated is simply covered with a sheet-like outer lid, the sealing performance before opening is low. For this reason, the quality maintenance property of the to-be-packaged object before use start is low.

  Known documents are shown below.

JP-A-6-48475

  This invention is made | formed in view of the above situations, and makes it a subject to provide the packaging bag which has the resealability with the high quality maintenance property of the to-be-packaged object before use start.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the invention of claim 1 is characterized in that the front film and the back film are overlapped, and the bag body is provided with a bag-side easy-cut line on the bag body whose peripheral edge is sealed. Any one of the above is provided with an easy-peeling portion so as to run over the bag-side easy-cut line, and from above the easy-peel portion, the bag-side easy-cut line and below the easy-peel portion Adhere the adhesive label to cross
The adhesive label is a packaging bag having resealability, characterized in that a label-side easy cutting line is provided above the bag-side easy cutting line and overlaps the easy-peeling portion.

The invention according to claim 2 of the present invention is characterized in that the bag-side easy-cut line is provided substantially parallel to the top seal portion of the bag body, and the resealable packaging bag according to claim 1 It is.

  The invention according to claim 3 of the present invention is characterized in that the bag-side easy cutting line is provided so as to connect the top seal portion from the left side seal portion or the right side seal portion of the bag body. The packaging bag having resealability described in 1.

  The invention according to claim 4 of the present invention is the packaging bag having resealability according to claim 1, wherein the width of the adhesive label is narrower than the width of the packaging bag.

  The packaging bag having resealability of the present invention is not provided with a piercing line, and is provided with a bag-side easy-cut line, so that it has a sealing property and maintains the quality of the packaged object before the start of use. High nature.

  And when the bag side easy cutting line of the bag body is broken and opened, the adhesive label is cut by the label side easy cutting line and protrudes upward from the opening of the bag main body, so that it sticks upward. The adhesive label can be folded back so as to cover the opening, adhered to the opposite film, and resealed. Alternatively, the bag body can be folded back to the opposite side of the pressure-sensitive adhesive label so that the opening is directed downward, stuck with the pressure-sensitive adhesive label protruding upward, and resealed.

  Moreover, since the width | variety of an adhesive label is narrower than the width | variety of a packaging bag, if the bag side easy cut line of a bag main body is fractured | ruptured, a label side easy cut line can be cut | disconnected so that it may follow.

It is explanatory drawing which showed typically an example of the packaging bag which has resealability of this invention. It is XX sectional drawing of FIG. It is explanatory drawing which showed typically the state which cut | disconnected and opened the easy cut line in an example of the packaging bag which has resealability of this invention. It is YY sectional drawing of FIG. It is explanatory drawing which showed typically the state which resealed an example of the packaging bag which has resealability of this invention. It is explanatory drawing which showed typically the other state which resealed an example of the packaging bag which has resealability of this invention. It is explanatory drawing which showed typically the manufacturing method of an example of the packaging bag which has resealability of this invention in the cross section. It is explanatory drawing which showed typically another example of the packaging bag which has resealability of this invention. It is explanatory drawing which showed typically the state which cut | disconnected and opened the easy-cut line in the other example of the packaging bag which has resealability of this invention.

  Hereinafter, modes for carrying out the present invention will be described.

<First Embodiment>
The packaging bag having resealability of this example is composed of a bag body and an adhesive label, and is an explanatory view of FIG. 2, the bag main body overlaps the front film 1 and the back film 2, seals the periphery, and provides a top seal portion 3, a left side seal portion 4, a right side seal portion 5, and a ground seal portion 6. Is formed.

Bag-side easy cutting lines 7 and 7 that are substantially parallel to the lower side of the top seal portion 3 are provided at substantially the same positions on the front film 1 and the back film 2. The front film 1 and the back film 2 are composed of a base film and a sealant film, and the bag-side easy cutting line 7 is a half-cut line so as to cut at least a part of the base film so as not to cut the sealant film. Is provided. For this reason, the bag-side easy cutting line 7 is provided by laser processing, or by half punching.

  The bag main body is provided with an easy-peeling processing portion 8 so as to run over the bag-side easy cutting line 7. And the adhesive label 9 in which the adhesive layer 92 was provided is affixed on the label base material 91 so that it may go over from the upper part of the easy peeling process part 8 to the downward direction.

  And the label side easy cut line 10 which cut | disconnected at least one part of the label base material 91 of the adhesive label 9 is provided so that it may be above the bag side easy cut line 7, and may overlap the easy peeling process part 8. FIG. In addition, the width | variety of the adhesive label 9 is narrower than the width | variety of a bag main body.

  The easy-peeling process part 8 is processed so that the adhesive layer 92 of the adhesive label 9 becomes difficult to stick. For example, a silicone resin, a modified silicone resin, or a synthetic resin to which silicone is added can be applied as a varnish. Moreover, it may be provided by attaching to a release tape substrate and attaching it as a release tape. In this case, it is necessary to use a base material that is easy to cut, such as thin paper, as the release tape base material.

  For the label substrate 91 of the pressure-sensitive adhesive label 9, paper or a resin film is preferably used. As the resin film, a biaxially stretched film of a thermoplastic resin can be preferably used.

  Moreover, as the adhesive layer 92, the mixture of a rubber-like copolymer and a tackifier can be used, for example. As the rubbery copolymer, a comby block copolymer containing a styrene block or a rubbery copolymer obtained by using ethylene as an essential component can be used. As a tackifier, rosin resin, tempen resin Any of the petroleum resins, or combinations thereof, can be used.

  The label-side easy cutting line 10 may be provided by cutting a part of the label base material 91 of the pressure-sensitive adhesive label 9, but the label base material 91 is substantially cut and the pressure-sensitive adhesive layer 92 is not cut. It is preferable to be in The label-side easy cutting line 10 is also a half-cut line and is provided by laser processing or by half-cutting.

  In this case, when the bag body is broken at the bag-side easy cutting line 7, the label base material 91 is easily broken at the label-side easy cutting line 10 and separated into the upper and lower sides, and the adhesive label 9. The remaining lower part protrudes to the upper part of the opening part of the bag body which is broken and opened at the bag side easy cutting line 7 as shown in FIG. 4 which is an explanatory view of FIG. 3 and a YY sectional view of FIG. Remain.

  Thus, since the adhesive label 9 protrudes and remains in the upper part of the opening part of a bag main body, in order to reseal the packaging bag which has the resealability of this example, it protrudes like the cross-sectional view of FIG. The adhesive label 9 can be folded back so that the opening is covered, and can be adhered to the surface of the back film 2 and resealed.

  Alternatively, the bag body can be folded back below the opening, and the protruding adhesive label 9 can be adhered to the surface of the back film 2 and resealed as shown in FIG.

  As described above, the front film 1 and the back film 2 of the packaging bag having resealability of this example are made of a laminated film in which a base film and a sealant film are laminated. An intermediate film may be provided between the base film and the sealant film.

For the base film, a stretched film of a resin such as polyethylene terephthalate, nylon, or polypropylene is preferably used. Moreover, you may use the vapor deposition film which provided the vapor deposition layer of inorganic oxides, such as an alumina and a silica, in these films.

  You may provide a pattern printing layer in the back surface of a base film. The pattern printing layer can be provided by a printing method such as gravure printing using urethane-based ink or the like, or flexographic printing or inkjet printing.

  As the sealant film, a polyethylene film such as low density polyethylene or linear low density polyethylene, or a thermoplastic resin film such as polypropylene film is used.

  When an intermediate film is used, a nylon stretched or unstretched film can be used as the intermediate film. Alternatively, a vapor deposition film in which a stretched film of polyethylene terephthalate, nylon, ethylene-vinyl alcohol copolymer or the like is provided with a vapor deposition layer of an inorganic oxide such as alumina or silica or a metal such as aluminum can also be used.

  Further, a so-called MXD nylon made of metaxylenediamine / adipic acid having a high barrier property, a film such as an ethylene-vinyl alcohol copolymer, or a metal foil such as aluminum may be used for the intermediate film. Furthermore, the intermediate film may be a multilayer intermediate film by combining these films and foils.

  These substrate film, sealant film, and intermediate film can be laminated by a dry lamination method using a two-component curable urethane adhesive or the like. Alternatively, the thermoplastic resin may be melted and extruded and laminated by a sandwich lamination method.

  The packaging bag having resealability of this example is manufactured using such a laminated film as the front film 1 and the back film 2. First, as the bag body, the front film 1 and the back film 2 are overlapped with the sealant film surfaces facing each other, the peripheral edge portion is sealed, and the top seal portion 3, the left side seal portion 4, and the right side seal portion 5 are provided. The ground seal portion 6 is not sealed as a filling port for filling an object to be packaged, and is left unsealed.

  And the bag side easy cut lines 7 and 7 are provided in the front film 1 and the back film 2 by the laser processing or half punching. The easy peeling processing part 8 may be provided in a predetermined position of the laminated film in advance, may be provided on the front film 1 slit for bag making, or may be provided at the time of bag making.

  Separately, a pressure-sensitive adhesive label 9 having a pressure-sensitive adhesive layer 92 provided on a label base material 91 is prepared and attached so as to cross from the upper side to the lower side of the easily peelable portion 8 of the bag body, and the packaging having resealability of this example Manufacture bags. As shown in FIG. 7, the label-side easy cutting line 10 may be provided before the adhesive label 9 is attached to the bag body, or may be provided after the adhesive label 9 is attached to the bag body.

  The resealability of this example filled with the article to be packaged by filling the article to be packaged from the filling port of the earth seal part left unsealed and sealing the earth seal part 6 Is produced.

The present invention may also be an embodiment different from the above.
<Second Embodiment>
The resealable packaging bag of this example is composed of a bag body and an adhesive label, and is an explanatory diagram of FIG.
The upper and lower intermediate portions are partially omitted), and the bag body overlaps the front film 1 and the back film 2, seals the peripheral edge, and forms a top seal portion 83, a left side seal portion 84, and a right side seal portion 85. A ground seal portion 86 is provided.

Although the bag side easy cutting line 87 is provided at substantially the same position of the front film 1 and the back film 2, in this example, the bag side easy cutting line 87 is directed from the left side seal portion 84 toward the top seal portion 83. Is provided.
Also in this example, the front film 1 and the back film 2 are composed of a base film and a sealant film, and the bag-side easy cutting line 87 cuts at least a part of the base film so as not to cut the sealant film. It is provided with a half cut line. For this reason, the bag-side easy cutting line 87 is provided by laser processing, or by half-punching processing or the like.

  The bag body is provided with an easy-peeling portion 88 so as to run over the bag-side easy-to-cut line 87, and the adhesive label 89 so as to cross downward from the upper side of the easy-peeling portion with the bag-side easy-to-cut line 87. Is attached.

  A label-side easy cutting line 90 obtained by cutting at least a part of the label base material of the pressure-sensitive adhesive label 89 is provided above the bag-side easy cutting line 87 and overlaps the easy-peeling portion 88. The width of the adhesive label 89 is narrower than the width of the bag body.

  When the bag body is broken at the bag-side easy cutting line 87, the label base material is easily broken at the label-side easy cutting line 90 and separated into upper and lower parts, and the lower part where the adhesive label 89 remains is the explanation of FIG. As shown in the figure, the bag-side easy-to-cut line 87 breaks and is opened to the upper part of the opening of the bag main body that remains open.

  Thus, since the adhesive label 89 protrudes and remains in the upper part of the opening part of a bag main body, in order to reseal the packaging bag which has the resealability of this example, the opening part is covered with the protruding adhesive label 89. And can be adhered to the surface of the back film 2 and resealed.

  As shown in the above embodiment, the packaging bag having resealability of the present invention is not provided with a piercing line, so that it has a sealing property and the quality retention of the packaged object before the start of use. high. And when the bag side easy cutting line of the bag body is broken and opened, the adhesive label is cut by the label side easy cutting line and protrudes upward from the opening of the bag main body, so that it sticks upward. The adhesive label can be folded back so as to cover the opening, adhered to the opposite film, and resealed. Alternatively, it can be folded back to the opposite side of the adhesive label so that the opening of the bag body faces downward, and the adhesive label protruding upward is stuck on the opposite film and can be resealed.

DESCRIPTION OF SYMBOLS 1 ... Front film 2 ... Back film 3, 83 ... Top seal part 4, 84 ... Left side seal part 5, 85 ... Right side seal part 6, 86 ... Ground seal part 7, 87 ... bag side easy cutting line 8, 88 ... easy peeling processing part 9, 89 ... adhesive label 10, 90 ... label side easy cutting line 91 ... label base material 92 ...・ Adhesive layer

Claims (4)

A bag-side easy-cut line is provided on the bag body with the front and back films overlapped and the periphery is sealed, and either the front film or the back film is easily peeled off so as to cover the bag-side easy-cut line. A part is provided, and an adhesive label is attached so as to cross the bag-side easy cutting line from above the easy-peeling part and below the easy-peeling part,
A packaging bag having resealability, wherein the adhesive label is provided such that a label-side easy-cut line is above the bag-side easy-cut line and overlaps the easy-peeling portion.   The packaging bag having resealability according to claim 1, wherein the bag-side easy cutting line is provided substantially parallel to the top seal portion of the bag body.   The packaging bag having resealability according to claim 1, wherein the bag-side easy cutting line is provided so as to connect the top seal portion from the left side seal portion or the right side seal portion of the bag body. .   The width of the said adhesive label is narrower than the width | variety of a packaging bag, The packaging bag which has resealability of any one of Claim 1 to 3 characterized by the above-mentioned.

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