JP2015009875A - Bag with tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag with a tape which can easily keep sealing without increase of an adhesive power.SOLUTION: A resin sheet 12 comprises: (a) first and second rectangular major parts 12a, 12b which form outside surfaces 10p, 10q of a bag 10 with a tape; (b) a first inner folding portion 12p of the first major part 12a which is connected to an upper edge 12s of the first major part 12a and extends along the second major part 12b side; (c) a second inner folding portion 12q of the second major part 12b which is connected to an upper edge 12t of the second major part 12b and extends along the first major part 12a side; and (d) a third inner folding portion 12r which is connected to a lower edge 12k of the second inner folding portion 12q, extends along a side of the second inner folding portion 12q opposite to the second major part 12b, and faces the first inner folding portion 12p. An adhesive layer 14 is formed on one of principal surfaces of the first inner folding portion 12p and the third inner folding portion 12r, and the adhesive layer 14 is covered by a release tape 16.

Description

  The present invention relates to a bag with a tape, and more particularly to a bag with a tape that can be sealed.

  Conventionally, various bags with tapes produced using a resin sheet have been proposed.

  For example, the tape-equipped bag 1 shown in the cross-sectional view of FIG. 9 and the perspective view of FIG. The adhesive layer 3 is continuously formed up to the other end, and the adhesive layer 3 is covered with the release tape 4. When an article is put through the opening 2, the release tape 4 is peeled off, both ends of the opening 2 are grasped by hand, and both ends are pulled away from each other as shown by arrows in FIG. 10, the adhesive layer 3 formed on one inner surface Is attached to the other inner surface (see, for example, Patent Document 1).

Utility Model Registration No. 3104441

  When the three-dimensional bag is forcibly accommodated or swelled by being pushed from the outside, the tape-attached bag 1 has an inner surface in the vicinity of the adhesive layer 3 as indicated by an arrow in the enlarged cross-sectional view of the main part of FIG. When the sheets 7 and 8 to be formed are spread, the sheets 7 and 8 may be peeled off from the adhesive layer 3 and the sealing may not be maintained. If the adhesive strength of the adhesive layer 3 is increased to prevent this, the sheets 7 and 8 are difficult to peel off from the adhesive layer 3, and the sheets 7 and 8 are deformed or torn at the time of opening, making it difficult to open cleanly. Become.

  In view of such circumstances, the present invention intends to provide a bag with a tape that can easily keep hermetically sealed without increasing the adhesive strength.

  In order to solve the above-described problems, the present invention provides a tape-equipped bag configured as follows.

  The bag with a tape includes a resin sheet, an adhesive layer, and a release tape. The resin sheet has (a) a shape having four sides, the first and second main parts connected to each other along three of the four sides, and (b) the first main part. Connected to the other one of the four sides, extends along the second main portion side of the first main portion, and continues between a pair of opposite sides of the three sides. A first inner folded portion connected to the first main portion along the side of the pair of the three sides facing each other, and (c) of the four sides of the first main portion Connected to the other one side, extending along the first main part side of the second main part, and continuous between the pair of opposite sides of the three sides, the three sides A second inner folding portion connected to the second main portion along the side of the pair facing each other, and (d) of the second main portion Connected to the side of the second inner folding part facing the other one side, extending along the opposite side of the second main folding part from the second main part, The first and second inner folded portions along the side of the pair of the three sides that are opposed to each other and that are continuous between the pair of sides that are opposed to each other and that are opposed to each other among the three sides. And a third inwardly-folded portion connected to each other. The pressure-sensitive adhesive layer is formed on one of the mutually opposing main surfaces of the first and third folded portions of the resin sheet, and is continuous between the pair of sides facing each other among the three sides. The release tape covers the pressure-sensitive adhesive layer so as to be peelable, and opposes the other of the main surfaces of the first and third inner folded portions of the resin sheet facing each other. The main fold portion between the first inner fold portion and the third inner fold portion is peeled off the release tape so that the adhesive layer faces the first and third inner fold portions of the resin sheet. It can be sealed by sticking to the other side of the surface.

  According to the above configuration, even if the bag with the tape sealed between the first inner fold portion and the third inner fold portion is inflated, the storage space between the first and second main portions is the first to second spaces. Since the third inner folding part is closed with a margin, sealing can be maintained. When the internal pressure of the sealed bag with tape increases, the first to third inner folded portions are pressed toward the adhesive layer by the internal pressure, and the first and third inner folded portions are unlikely to peel from the adhesive layer. Become. Therefore, the sealing can be easily maintained without increasing the adhesive force.

  Moreover, in order to solve the said subject, this invention provides the bag with a tape comprised as follows.

  The bag with a tape includes a resin sheet, an adhesive layer, and a release tape. The resin sheet has (a) a shape having four sides, the first and second main parts connected to each other along three of the four sides, and (b) the first main part. Connected to the other one of the four sides, extends along the second main portion side of the first main portion, and continues between a pair of opposite sides of the three sides. A first inner folded portion connected to the first main portion along the side of the pair of the three sides facing each other, and (c) of the four sides of the first main portion Connected to the other one side, extending along the first main part side of the second main part, and continuous between the pair of opposite sides of the three sides, the three sides And the second inner folding part connected to the second main part along the side. The said adhesion layer is formed in one of the mutually opposing main surfaces of the said 1st and 2nd inner folding part of the said resin sheet, and it continues between the said pair of sides which mutually oppose among the said 3 sides. The release tape covers the pressure-sensitive adhesive layer in a peelable manner and opposes the other of the main surfaces of the first and second inwardly folded portions of the resin sheet facing each other. The main fold portion between the first inner fold portion and the second inner fold portion is peeled off the release tape so that the adhesive layer is opposed to the first and second inner fold portions of the resin sheet. It can be sealed by sticking to the other side of the surface.

  According to the above configuration, even if the bag with tape sealed between the first inner folding portion and the second inner folding portion is inflated, the storage space between the first and second main portions is the first and second Since the second inner folding portion is closed with a margin, sealing can be maintained. Further, when the internal pressure of the sealed bag with tape is increased, the first and second inner folded portions are pressed toward the adhesive layer by the internal pressure, and the first and second inner folded portions are hardly peeled off from the adhesive layer. Become. Therefore, the sealing can be easily maintained without increasing the adhesive force.

  Moreover, in order to solve the said subject, this invention provides the bag with a tape comprised as follows.

  The bag with a tape includes a resin sheet, an adhesive layer, and a release tape. The resin sheet has (a) a shape having four sides, the first and second main parts connected to each other along three of the four sides, and (b) the first main part. Connected to the other one of the four sides, extends along the second main portion side of the first main portion, and continues between a pair of opposite sides of the three sides. And a pair of the three sides facing each other including a first inner folding part connected to the first main part along the side. The adhesive layer is formed on one of the mutually opposing main surfaces of the first inwardly folded portion and the second main portion of the resin sheet, and between the pair of sides facing each other among the three sides. Is continuous. The release tape covers the pressure-sensitive adhesive layer in a peelable manner, and opposes the other of the principal surfaces of the first inner folded portion and the second main portion of the resin sheet that face each other. Between the first inner folding part and the second main part, the release tape is peeled off to put the adhesive layer between the first inner folding part and the second main part of the resin sheet. Sealing is possible by sticking to the other of the opposing main surfaces.

  According to the above configuration, even if the bag with the tape sealed between the first inner folding portion and the second main portion is inflated, the storage space between the first and second main portions is the first inner portion. Since it is closed with a margin by the folded portion, sealing can be maintained. Moreover, if the internal pressure of the sealed bag with a tape becomes high, the 1st inner folding part will be pressed toward an adhesion layer with an internal pressure, and it will become difficult to peel a 1st inner folding part from an adhesion layer. Therefore, the sealing can be easily maintained without increasing the adhesive force.

  The tape-equipped bag of the present invention can easily keep hermetically sealed without increasing the adhesive strength. Therefore, it is easy to be able to open it cleanly.

It is (a) top view and (b) sectional view of a bag with a tape. Example 1 It is a partial section perspective view of a bag with a tape. Example 1 It is a principal part expanded sectional view of a bag with a tape. Example 1 It is a partial section perspective view of a bag with a tape. (Example 2) It is a principal part expanded sectional view of a bag with a tape. (Example 2) It is a partial section perspective view of a bag with a tape. (Example 3) It is a principal part expanded sectional view of a bag with a tape. (Example 3) It is a principal part expanded sectional view of a bag with a tape. (Explanation example 1) It is principal part sectional drawing of a bag with a tape. (Conventional example 1) It is a perspective view of a bag with a tape. (Conventional example 1)

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  <Example 1> The bag 10 with a tape of Example 1 is demonstrated, referring FIGS. 1-3.

  FIG. 1A is a plan view of the tape-equipped bag 10. FIG.1 (b) is sectional drawing cut | disconnected along line XX of Fig.1 (a). FIG. 2 is a partial cross-sectional perspective view cut along the line AA in FIG. 1A, and schematically illustrates the overlapping of sheets.

  As shown in FIGS. 1 and 2, the tape-attached bag 10 is formed in a bag shape by sealing the folded resin sheet 12 along a pair of side edges 10s and 10t. The bag with tape 10 has a lower side 10n as a bottom and opens along the upper side 10m.

  The resin sheet 12 includes (a) rectangular first and second main portions 12a and 12b that form the outer surfaces 10p and 10q of the tape-equipped bag 10, and (b) first and second main portions 12a and 12b. A gusset portion 12c that connects the lower sides 12v and 12w, and (c) a first main portion 12a that is connected to the upper side 12s of the first main portion 12a and extends along the second main portion 12b side of the first main portion 12a. One inner folding portion 12p and (d) a second inner folding portion connected to the upper side 12t of the second main portion 12b and extending along the first main portion 12a side of the second main portion 12b. 12q and (e) connected to the lower side 12k of the second inner folding part 12q facing the upper side 12t of the second main part 12b, and is opposite to the second main part 12b of the second inner folding part 12q A third inner folded portion 12r extending along the main surface of the first inner folded portion and facing the first inner folded portion 12p; Including.

  The gusset portion 12c is bent into a substantially W-shaped cross section with the lower sides 12v and 12w of the first and second main portions 12a and 12b as both ends, and is disposed between the first and second main portions 12a and 12b. The Since the bottom area of the tape-equipped bag 10 is increased by the gusset portion 12c, it is suitable for storing a three-dimensional article, and the tape-equipped bag 10 can easily stand up in the stored state.

  The lower sides 12v and 12w of the first and second main parts 12a and 12b are connected to each other through the gusset part 12c, and the lower sides 12v and 12v of the first and second main parts 12a and 12b are connected. 12w may be directly connected to each other. In this case, even if the resin sheet is bent along the lower side 10n, separate resin sheets on the first main portion 12a side and the second main portion 12b side may be overlapped and connected along the lower side 10n. .

  The tape-attached bag 10 includes first and second main portions 12a and 12b, a gusset portion 12c, and first to third inwardly folded portions 12p, 12q, and 12r along a pair of side sides 10s and 10t. Are connected to each other. The seal portions 18s and 18t can be formed by heat sealing or ultrasonic bonding. In the tape-equipped bag 10, an opening 11a is formed between the first inner folding portion 12p and the third inner folding portion 12r, and a storage space 11b is provided between the first main portions 12a, 12b and the second main portion. It is formed.

  As shown in FIG. 2, the 1st junction part by which the 1st inner folding part 12p and the 1st main part 12a were joined to the intermediate position of the 1st inner folding part 12p by heat sealing or ultrasonic bonding. 12x is formed, and a first header portion 11s is formed above the first joint portion 12x. A second joint portion 12y in which the second inner fold portion 12q and the second main portion 12b are joined by heat sealing or ultrasonic joining is formed at an intermediate position of the second inner fold portion 12q. A second header portion 11t is formed above the joint portion 12y. The first and second header portions 11s and 11t may be joined together in the form of dots or meshes by heat sealing or ultrasonic bonding.

  An adhesive layer 14 is formed on the main surface of the first inner folded portion 12p facing the third inner folded portion 12r below (front end side) from the first joint 12x, and the adhesive layer 14 is released from the mold. Covered with tape 16. The release tape 16 faces the third inner folding part 12r. The adhesive layer 14 and the release tape 16 are continuous between the pair of sides 10s and 10t of the tape-equipped bag 10, and both ends reach the seal portions 18s and 18t.

  The tape-attached bag 10 unwinds a roll-shaped resin sheet material, affixes the adhesive tape 13 to form the adhesive layer 14 and the release tape 16, and then bends it using a triangular plate or the like, for example, a heated blade Can be continuously manufactured by simultaneously forming the sealing portions 18s and 18t and cutting the side edges 10s and 10t along the side edges 10s and 10t.

  The tape-attached bag 10 peels the release tape 16 and attaches the adhesive layer 14 to the third inner fold 12r, thereby sealing between the first inner fold 12p and the third inner fold 12r. be able to.

  For example, even if the bag 10 with tape is forcibly stored in the storage space 11b or swelled by being crushed from the outside, the storage space 11b between the first and second main portions 12a and 12b is Since the first to third inner folding portions 12p, 12q, and 12r are closed with a margin, the sealing can be maintained. Further, when the pressure in the storage space 11b increases due to a temperature rise or external pressure, the first to third inwardly folded portions 12p, 12q, and 12r are caused by the internal pressure indicated by the arrows in the enlarged cross-sectional view of the main part in FIG. Is pressed toward the adhesive layer 14, and the first and third inwardly folded portions 12 p and 12 r are not easily peeled off from the adhesive layer 14. Therefore, the sealing can be easily maintained without increasing the adhesive strength of the adhesive layer 14.

  Since it is not necessary to increase the adhesive strength of the adhesive layer 14, it is easy to make it possible to open the tape-equipped bag 10 neatly. That is, when the adhesive force of the adhesive layer 14 is increased, the resin sheet 12 is deformed or torn at the time of opening, and thus it is difficult to open the sheet cleanly, but it is not necessary to increase the adhesive force of the adhesive layer 14. The adhesive strength of the adhesive layer 14 can be selected so that the bag 10 with tape can be opened cleanly.

  The tape-attached bag 10 is preferably a rectangular shape because there is little waste of material, but it can also be formed into a shape having four sides other than the rectangular shape. In that case, each of the sides 10s, 10t, 10n, and 10m may have a bent shape or a curved shape.

  The material of the resin sheet 12 may be appropriately selected, and may be transparent, opaque, or translucent, and characters, figures, or the like may be printed as necessary. The resin sheet 12 is formed with a circular through hole for suspending the tape-equipped bag 10 between the upper side 10 m and the release tape 16 or an oval through hole for a handle to be held by a hand. May be.

  The adhesive layer 14 and the release tape 16 may be formed on either one of the main surfaces of the first and third inner folded portions 12p and 12r facing each other. That is, an adhesive layer is formed on the main surface of the third inner folding portion 12r facing the first inner folding portion 12p, the release tape covers the adhesive layer in a peelable manner, and faces the first inner folding portion. It is good also as a structure.

  The first and second joint portions 12x and 12y and the first and second header portions 11s and 11t may be omitted. The positions of the upper sides 12s and 12t of the first and second main portions 12a and 12b and the upper side 12u of the third inner folded portion 12r may be shifted without being aligned.

  <Example 2> The bag 10a with a tape of Example 2 is demonstrated referring FIG.4 and FIG.5. The tape-equipped bag 10a according to the second embodiment is configured in substantially the same manner as the tape-equipped bag 10 according to the first embodiment. In the following, the same reference numerals are used for the same components as in the first embodiment, and differences from the first embodiment will be mainly described.

  FIG. 4 is a partial cross-sectional perspective view of the tape-equipped bag 10a, schematically illustrating the overlapping of sheets. As shown in FIG. 4, the tape-equipped bag 10a does not have a portion corresponding to the third inner folding portion 12r of the first embodiment, and the release tape 16 provided in the first inner folding portion 12p 2 is opposed to the inner folded portion 12p.

  For example, even if the bag 10a with tape is forcibly stored in the storage space 11b or swelled by being crushed from the outside, the storage space 11b between the first and second main portions 12a and 12b is Since the first and second inner folding portions 12p and 12q are closed with a margin, the sealing can be maintained. Further, when the pressure in the storage space 11b increases due to a temperature rise or external pressure, the first and second inner folded portions 12p and 12q are adhered by the internal pressure indicated by the arrow in the enlarged cross-sectional view of the main part in FIG. Pressed toward the layer 14, the first and second inwardly folded portions 12 p and 12 q are not easily peeled off from the adhesive layer 14. Therefore, the sealing can be easily maintained without increasing the adhesive strength of the adhesive layer 14. Since it is not necessary to increase the adhesive strength of the adhesive layer 14, it is easy to be able to open the tape-equipped bag 10a cleanly.

  In addition, what is necessary is just to form the adhesion layer 14 and the release tape 16 in any one of the main surfaces which the 1st and 2nd inner folding parts 12p and 12q mutually oppose. That is, an adhesive layer is formed on the main surface of the second inner folding portion 12q facing the first inner folding portion 12p, the release tape covers the adhesive layer in a peelable manner, and faces the first inner folding portion. It is good also as a structure.

  <Example 3> The bag 10b with a tape of Example 3 is demonstrated referring FIG.6 and FIG.7.

  FIG. 6 is a partial cross-sectional perspective view of the tape-equipped bag 10b, schematically illustrating the overlapping of sheets. As shown in FIG. 6, the tape-equipped bag 10 b does not have a portion corresponding to the second and third inner folding portions 12 q and 12 r of the first embodiment, and the release tape 16 has the second main portion 12 b. It faces the inner surface, that is, the main surface of the second main portion 12b that faces the first inwardly folded portion 12p.

  For example, even if the bag 10b with tape is forcibly stored in the storage space 11b or swelled by being crushed from the outside, the storage space 11b between the first and second main portions 12a and 12b is Since the first inner folding portion 12p is closed with a margin, sealing can be maintained. Further, when the pressure in the storage space 11b increases due to temperature rise or external pressure, the first inner folding portion 12p is directed toward the adhesive layer 14 by the internal pressure indicated by the arrow in the enlarged cross-sectional view of the main part in FIG. The first inner folded portion 12p is hardly peeled off from the adhesive layer 14 by being pressed. Therefore, the sealing can be easily maintained without increasing the adhesive strength of the adhesive layer 14. Since it is not necessary to increase the adhesive strength of the adhesive layer 14, it is easy to make it possible to open the tape-equipped bag 10b cleanly.

  <Summary> As described above, the tape-equipped bag of the present invention can easily keep hermetically sealed without increasing the adhesive strength. Therefore, it is easy to be able to open it cleanly.

  The present invention is not limited to the above embodiment, and can be implemented with various modifications.

10, 10a, 10b Bag with tape 10m Upper side (the other side)
10n Lower side (3 out of 4 sides)
10p, 10q Outer surface 10s, 10t Side (3 out of 4 sides, pair of sides facing each other)
11a Opening 11b Storage space 11s, 11t Header part 12 Resin sheet 12a First main part 12b Second main part 12c Gazette part 12k Lower side 12p First inner folding part 12q Second inner folding part 12r Third inner folding Part 12s, 12t, 12u Upper side 12v, 12w Lower side 12x, 12y Joint part 13 Adhesive tape 14 Adhesive layer 16 Release tape 18s, 18t Seal part

Claims (3)

First and second main parts connected to each other along three of the four sides, the shape having four sides;
A pair connected to the other one of the four sides of the first main part, extending along the second main part side of the first main part, and facing each other among the three sides A first inwardly folded portion connected to the first main portion along the side of the pair of the three sides facing each other.
Connected to the other one of the four sides of the first main part, extends along the first main part side of the second main part, and faces each other among the three sides A second inward portion that is continuous between a pair of sides and is connected to the second main portion along the side of the pair of the three sides facing each other;
It is connected to the side of the second inner folding part facing the other one side of the second main part, and extends along the opposite side of the second main folding part from the second main part. The first inwardly facing portion, and continuous between the pair of sides facing each other among the three sides, and the first pair along the side facing the pair of the three sides facing each other. And a third inner fold connected to the second inner fold,
A resin sheet containing,
An adhesive layer formed on one of the mutually opposing main surfaces of the first and third inwardly folded portions of the resin sheet, and continuous between the pair of opposite sides of the three sides;
A release tape that covers the pressure-sensitive adhesive layer in a peelable manner, and that faces the other of the main surfaces of the first and third folded portions of the resin sheet facing each other;
With
The main fold portion between the first inner fold portion and the third inner fold portion is peeled off the release tape so that the adhesive layer faces the first and third inner fold portions of the resin sheet. A tape-attached bag, which can be sealed by being attached to the other surface. First and second main parts connected to each other along three of the four sides, the shape having four sides;
A pair connected to the other one of the four sides of the first main part, extending along the second main part side of the first main part, and facing each other among the three sides A first inwardly folded portion connected to the first main portion along the side of the pair of the three sides facing each other.
Connected to the other one of the four sides of the first main part, extends along the first main part side of the second main part, and faces each other among the three sides A second inward portion that is continuous between a pair of sides and is connected to the second main portion along the side of the pair of the three sides facing each other;
A resin sheet containing,
An adhesive layer formed on one of the opposing main surfaces of the first and second inwardly-folded portions of the resin sheet, and continuous between the pair of opposite sides of the three sides;
A release tape that covers the adhesive layer in a peelable manner and that opposes the other of the principal surfaces of the first and second inner folded portions of the resin sheet,
With
The main fold portion between the first inner fold portion and the second inner fold portion is peeled off the release tape so that the adhesive layer is opposed to the first and second inner fold portions of the resin sheet. A tape-attached bag, which can be sealed by being attached to the other surface. First and second main parts connected to each other along three of the four sides, the shape having four sides;
A pair connected to the other one of the four sides of the first main part, extending along the second main part side of the first main part, and facing each other among the three sides A first inwardly folded portion connected to the first main portion along the side of the pair of the three sides facing each other.
A resin sheet containing,
An adhesive layer formed on one of the mutually opposing main surfaces of the first inner folded portion and the second main portion of the resin sheet and continuing between the pair of opposite sides of the three sides When,
A release tape that covers the adhesive layer in a peelable manner and that opposes the other of the principal surfaces of the first inner folded portion and the second main portion of the resin sheet that are opposed to each other,
With
Between the first inner folding part and the second main part, the release tape is peeled off to put the adhesive layer between the first inner folding part and the second main part of the resin sheet. A bag with a tape, wherein the bag can be sealed by being attached to the other of the opposing main surfaces.

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