JP2011225266A - Microwave oven package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microwave oven package in which an inner package bag can be sufficiently expanded when heating with the microwave oven after a box is opened.SOLUTION: There is provided a package for microwave oven including a box body 10 and a package bag 20 stored in the box body 10, wherein an interface 16 between a seal opened part 15 and a seal non-opened part at the box body 10 is continuous with each of a second side surface 13b and a third side surface 13d over a front surface 11 and extends up to a connected part between each of the second side surface 13b and the third side surface 13d and a rear surface 12, the rear surface 12 is formed with a folding facilitating line 18 to connect an end part P1 of the interface 16 at the connected part between the second side surface 13b and the rear surface 12 with an end part P2 of the interface 16 at a connected part between the third side surface 13d and the rear surface 12, and slits 18a (18b) are formed to extend from end parts P1 (P2) at the interface 16 between at least one of the second side surface 13b and the third side surface 13d and the rear surface 12 to the rear surface 12.

Description

  The present invention relates to a package for a microwave oven having a structure in which a packaging bag such as a pouch that is formed with a steam vent and can be heated in a microwave oven is housed in a box.

  2. Description of the Related Art Conventionally, there has been proposed a microwave heating packaging body in which a food packaging bag (pouch) provided with a relief port (steam vent) that can be heated in a microwave oven is housed in a box. (See Patent Document 1). In this microwave oven package, a relief port (steam vent) is formed to alleviate an increase in internal pressure when the packaging bag is heated, and the packaging bag is formed with an openable opening portion. The box is housed with its relief port facing the separation opening. And the food content in a packaging bag is heated with a microwave oven in the state which opened the cutting opening part of the box, and exposed the relief port of the packaging bag. When the packaging bag in the box expands due to this heating and the internal pressure exceeds the limit, steam blows out from the relief port, and the edible contents in the packaging bag are heated while maintaining the pressure inside the packaging bag appropriately. Cooked.

  Further, in a flat box-type cosmetic box used for outer packaging of a microwave oven heating pouch, a cosmetic box for a microwave oven heating pouch having a fold line and a pouch support part cut line connected to the fold line formed on the bottom surface of the box. When the box is opened, the pouch support part of the cosmetic box is cut along the cut line, and the cosmetic box for a microwave heating pouch formed so as to protrude on the upper surface of the opened part of the decorative box is provided. It has been proposed (see Patent Document 2). Furthermore, it can be easily opened by breaking the front plate cutting planned line and the side plate cutting planned line provided on the packaging box, and folding it using the back folding line as a fulcrum, and supporting the folded opening part to support the pouch. Proposed packaging box for microwave oven pouches that can be supported by tilting and that can suppress the restoring operation of the box that supports the tilted state by the control projections folded so as to contact the back of the pouch (See Patent Document 3).

  According to such a microwave oven packaging body, the food contents in the packaging bag can be heated by the microwave oven without removing the packaging bag from the box simply by opening the separation opening portion of the box body. Therefore, preparation for cooking by a microwave oven can be performed easily and easily. Furthermore, since the heating by the microwave oven is performed while the packaging bag is contained in the box, the food contents in the packaging bag can be heated in a stable state.

JP 2001-39476 A JP 2003-170930 A JP 2006-046696 A

  However, an electronic device capable of heating the contents of the packaging bag by a microwave oven in the state where the opening portion of the box described in Patent Document 1 is opened to expose the steam vent portion (relief port) of the packaging bag. In the range packaging body, the range of the opened opening part is small, and there is a possibility that sufficient expansion of the internal packaging bag may be hindered during heating by the microwave oven. In addition, in the packaging box for microwave oven pouches described in Patent Document 2 and Patent Document 3, the back surface is reinforced by folding the unsealed portion at the folding line on the back surface of the packaging box. It becomes difficult to deform, and there is a risk that sufficient expansion of the internal pouch is hindered during heating by a microwave oven. And if sufficient expansion of the packaging bag (pouch) is hindered, steam will blow out from the steam venting part earlier than the desired time, causing heating unevenness, or parts other than the steam venting part break the bag and the contents Problems such as spills can occur.

  This invention is made | formed in view of such a situation, and provides the packaging body for microwave ovens which an internal packaging bag can fully expand | swell at the time of the heating by the microwave oven after opening a box. .

  A microwave oven package according to the present invention has a front surface and a back surface facing each other, and a side surface connected to an edge of the front surface and the back surface. A microwave oven packaging body having a packaging bag formed in the box so that a punching portion is formed and the steam venting portion faces the opening portion, wherein the side surface includes the first side surface and the packaging surface. It has at least a second side surface and a third side surface facing each other with the sandwiched portion, and the opening portion opens from the boundary with the non-opening portion to the first side surface, The boundary with the opening portion extends over the front surface to the second side surface and the third side surface, and extends to a joint portion between the second side surface and the third side surface and the back surface, and the second side surface. And an end of the boundary at the joint between the back surface and the back surface, and the third side surface A fold facilitating line is formed on the back surface so as to connect the edge of the junction with the back surface, and the opening portion is folded back to the back surface side with the fold facilitating line as a fulcrum. Exposes the steam vent and allows deformation of the unopened portion of the box by the packaging bag that expands when heated by a microwave oven while the packaging bag contained in the box is supported diagonally Thus, a configuration is formed in which a cut is formed so as to extend from the end of the boundary at the junction between at least one of the second side surface and the third side surface to the back surface.

  With such a configuration, the unsealed portion of the box containing the packaging bag extends across the front surface to the junction between the second side surface and the third side surface, and the junction between the second side surface and the third side surface. Opening from the boundary between the unsealed portion and the unopened portion to the first side surface sandwiched between the second side surface and the third side surface, the unfolded portion is formed on the back surface so that the folding easy line is like a hinge. The packaging body can be heated in a microwave oven in a state where it is folded back to the back side of the box body to expose the steam vent of the packaging bag and the packaging bag housed in the box body is supported diagonally. The packaging bag that receives the heating action from the microwave oven expands due to water vapor generated inside, and when the internal pressure exceeds a certain limit, the water vapor is ejected from the water vapor removal portion. Therefore, the contents in the packaging bag can be cooked at an appropriate pressure.

  Since the cut is formed so as to extend from the end of the boundary at the junction between at least one of the second side surface and the third side surface of the box and the back surface, the packaging bag as described above Due to the expansion, the front surface of the remaining portion of the box body rises, and the back surface is allowed to be pushed down and deformed toward the unfolded portion side. Further, the unsealed portion is pressed down and the box body can be torn from the notch. As the box can be torn from the notches in this way, the force that the box tries to hold down the expansion of the packaging bag can be relieved, and the unopened portion of the box is deformed by the expanding packaging bag. Can be easy.

  The incision can be formed so as to extend parallel to the first side surface, and from the end of the boundary at the junction between each of the second side surface and the third side surface and the back surface. It can also be formed to extend to the back surface.

  In the microwave oven package according to the present invention, the front surface includes a finger hook portion formed at a portion facing the first side surface in the unsealed portion along the boundary with the unopened portion of the unsealed portion. can do.

  With such a configuration, a finger is placed on a finger-hanging portion formed at a portion facing the first side surface in the opening portion on the front surface, and the opening portion is unopened by lifting the finger-hanging portion toward the first side surface. Since it can be opened from the boundary to the side of the first side surface, dust does not disperse as in the case of partially cutting and opening the box, and as in the case of opening by pinching the tab The unsealed portion can be easily and reliably opened without accidentally tearing off the tab.

  Further, in the microwave oven packaging body according to the present invention, the finger-hanging portion is formed so as to be surrounded by the boundary portion and a crease line, and is pushed into the inside of the box body from the fold line by pressing the finger-hanging portion. It can be configured such that a finger is applied to the hole formed by the above.

  With such a configuration, the opening part can be opened by placing a finger on the hole formed by pushing the finger-hanging part and folding it from the crease line to the inside of the box, so that it is easy to operate and bends from the crease line. The finger hooking part reinforces the hole where the finger is applied, making it easier to apply force.Furthermore, since the fingertip does not hit the cutting edge of the cardboard or the like forming the box, the opening operation of the opening part can be performed more safely. It can be carried out.

  The folding facilitating line in the microwave packaging body according to the present invention is not particularly limited as long as it is a line that facilitates folding the opened opening part like a hinge. Even if it is a habit line, it may be a cut line string in which a plurality of cut lines are connected. When the easy-to-fold line is formed by a line of cut lines, the line of cut lines can also be torn by the rise of the surface of the box due to the expansion of the packaging bag and the downward deformation of the back surface. The force for pressing the bag can be further relaxed, and the unopened portion of the box body is further easily deformed by the expanding packaging bag.

  In the microwave oven package according to the present invention, the cut may be formed so as to overlap the easy-to-fold line.

  With such a configuration, when the packaging bag is inflated, the box body tends to tear along the easy-to-fold line due to the rise of the surface of the box body and the pressing deformation of the back surface, so the box body tries to hold down the expansion of the packaging bag. The force to do this can be relaxed, and the unopened portion of the box body is further easily deformed by the expanding packaging bag.

  In the microwave oven package according to the present invention, the height of the side surface of the box is within a range of 1.1 to 1.5 times the thickness before heating of the packaging bag filled with the contents. It can be configured.

  With such a configuration, the microwave oven package can be configured using a box having a thickness (side height) substantially equal to the thickness of the internal packaging bag. Thus, even when the box body has a thickness substantially equal to the thickness of the internal packaging bag, when the packaging bag expands due to the heating of the microwave oven, Since the force to suppress the expansion of the packaging bag can be relaxed, the packaging bag can sufficiently expand.

  According to the microwave oven packaging body of the present invention, the packaging bag exposed from the remaining portion of the box body by the microwave oven in a state where the opened opening portion is folded to the back side of the remaining portion of the box body. When heated, the surface of the remaining portion of the box body rises due to the expansion of the packaging bag and the back surface is deformed by being pushed down to the folded-back side of the folded portion. By tearing the box from the notch, the force of the box to suppress the expansion of the packaging bag is relieved, and the deformation of the unopened portion of the box by the expanding packaging bag is allowed. Therefore, the inner packaging bag can be sufficiently expanded during heating by the microwave oven after opening the box.

It is a perspective view which shows the external appearance of the package for microwave ovens concerning the 1st Embodiment of this invention. It is an expanded view of the box used for the packaging body for microwave ovens shown in FIG. It is the elements on larger scale which show the detailed structure of the opening part formed in the box. It is sectional drawing which shows the cross-section of the package for microwave ovens shown in FIG. It is a perspective view which shows the state which opened the box of the package for microwave ovens shown in FIG. It is a front view which shows the state which opened the box of the package for microwave ovens shown in FIG. It is a perspective view which shows the state which the pouch accommodated in the box body expanded. It is a perspective view which shows the state after heating the package for microwave ovens of the state shown in FIG. 5 with a microwave oven. It is a front view which shows the state after heating the package for microwave ovens of the state shown in FIG. 5 with a microwave oven.

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

  The box in the packaging bag for microwave ovens according to one embodiment of the present invention is configured as shown in FIGS. 1 is a perspective view showing the appearance of the microwave packaging body, and FIG. 2 is a development view of a box used in the microwave packaging body shown in FIG.

In FIG. 1, a box (decoration box) 10 used for the microwave packaging body is made of paper (eg, coated cardboard 310 g / cm ² ), and has a rectangular front surface 11 and It is formed of a back surface 12 and four side surfaces including an upper side surface 13a, a lateral side surface 13b, a lower side surface 13c, and a lateral side surface 13d that are connected to the edges of the front surface 11 and the back surface 12. Although not shown in FIG. 1, a so-called flat bag type microwave pouch 20 (packaging bag) formed of a plastic sheet and filled with contents such as food is contained in the box 10. (See FIGS. 4 to 7 described later).

  The box 10 is assembled from the developed paper shown in FIG. The developed paper includes a rectangular (rectangular) front surface 11 and back surface 12, a strip-shaped upper side surface 13a, one lateral side surface 13b, a lower side surface 13c, the other lateral side surface 13d, and adhesive margins (glue surfaces) 14aa and 14b. , 14ca and folded pieces 14ab, 14ac, 14cb, 14cc. As shown in FIG. 1, by folding and bonding the developing paper, the front surface 11 and the back surface 12 facing each other, the upper side surface 13a and the lower side surface 13c facing each other, and the two lateral side surfaces 13b facing each other, A box 10 having a flat rectangular parallelepiped shape is formed by the four side surfaces 13d. Specifically, the adhesive margin 14b protruding from the back surface 12 is bonded to the back side of the lateral surface 13d, so that the lateral side surface 13d connected to the edge of the front surface 11 is joined to the back surface 12. Then, the adhesive margin 14aa is adhered to the back side of the upper side surface 13a while the folded pieces 14ab, 14ac, 14cb, 14cc are folded inward, and the adhesive margin 14ca is adhered to the rear side of the lower side surface 13c. The box 10 is formed by joining the four side surfaces of the upper side surface 13a, the lower side surface 13c, and the lateral side surfaces 13b and 13d.

Further, referring to FIGS. 2 and 3 together with FIG. 1, the box body 10 is opened from the front surface 11 to both lateral side surfaces 13b (second side surface) and 13d (third side surface) sandwiching the upper side surface 13a (first side surface). A possible opening 15 is formed. A cut line string in which cut lines are connected is formed at a boundary 16 between the unsealed part 15 and the unopened part, and the uncut part of the cut line line is cut off in a chain manner so that the unsealed part 15 moves upward from the boundary 16. Open in the direction of the side surface 13a. A boundary 16 between the unsealed portion 15 and the unopened portion of the unsealed portion 15 includes a first portion 161 having a substantially V-shape that opens toward the upper side surface 13 a on the front surface 11, and a front surface following one end portion of the first portion 161. The second portion 162 extending from 11 to one lateral side surface 13b and reaching the junction between the lateral side surface 13b and the back surface 12, and following the other end of the first portion 161, from the front surface 11 to the other lateral side surface 13d. The third portion 163 extends to reach a joint portion between the lateral side surface 13d and the back surface 12. On the developed paper of the box 10, the first portion 161 and the second portion 162 of the boundary 16 continue linearly, and the first portion 161 and the third portion 163 continue linearly. Further, a cutting line row C ₁₆₃ is formed in the adhesive margin 14b bonded to the lateral side surface 13d so as to coincide with the third portion 163 of the boundary 16 formed on the lateral side surface 13d.

On the back surface 12, an easy-folding line 18 for facilitating folding is formed so as to be parallel to the upper side surface 13 a and the lower side surface 13 c. The fold facilitating line 18 is, for example, a cut line array in which a plurality of cut lines are continuous, and the end portion P1 of the second portion 162 of the boundary 16 with the non-opening portion of the opening portion 15 and the third portion 163. Is formed between the end portion P2 of the cut line C ₁₆₃ formed in the adhesive margin 14b that matches the end portion of the cut line C163. In particular, one end of the fold facilitating line 18 is a cut line 18a (cut) following the back surface 12 from the end P1 of the second portion 162 on the lateral side surface 13b of the boundary 16 with the non-opening portion of the opening portion 15. The other end portion of the fold facilitating line 18 extends from the end portion P2 of the third portion 163 on the lateral side surface 13d (glue margin 14b) of the boundary 16 with the non-opening portion of the opening portion 15 to the back surface 12. The cut line 18b (cut) follows.

  Further, a finger hooking portion 17 is formed on the inner side of the top portion of the first portion 161 that is substantially V-shaped at the boundary 16 with the non-opening portion of the opening portion 15. The finger hook portion 17 is formed by being surrounded by a predetermined range portion of the top portion of the boundary 16 facing the first side surface 13a and having a substantially V shape and a perforation line 17a (fold line). 17b is formed. Thereby, a finger comes to the hole formed by pushing the finger hook part 17 and folding it inward of the box 10 (front surface 11) from the perforation line 17a.

  As shown in FIGS. 4 and 5, the flat bag type pouch 20 housed in the box 10 is formed with steam vents 21 a, 21 b, and 21 c side by side. Each of the steam vents 21a, 21b, and 21c has a structure in which the periphery of the hole (weakening part) is sealed as described in, for example, Japanese Patent Application Laid-Open No. 2002-249176, and the internal pressure of the pouch 20 is limited. If it exceeds, steam will be ejected from the steam vents 21a, 21b, 21c (holes). The structure of the steam vents 21a, 21b, and 21c is not limited to the above-described structure, and a predetermined portion of the edge seal part of the pouch 20 is narrowed and protruded inward, with an easily peelable film interposed therebetween. When the internal pressure of the pouch 20 is increased by sealing or the like, the seal of the predetermined portion is peeled off preferentially, a heating element that generates heat by microwave irradiation is attached to a film material (sheet), A known material such as one in which the film material is melted or the seal strength is reduced to allow vapor to escape can be applied.

  The pouch 20 is housed in the box 10 so that the steam vents 21 a, 21 b, and 21 c are opposed to the opening part 15 formed on the front surface 11. Further, the pouch 20 is formed with a folded portion 22 that protrudes toward the back surface 12 due to an increase in internal pressure at a portion corresponding to the opening portion 15. The folded portion 22 protrudes when the pouch 20 expands, and the detailed structure thereof is described in Japanese Patent Application Laid-Open No. 2006-62672.

  The height of each side surface 13a to 13d of the box 10 can be set within a range of 1.1 to 1.5 times the thickness of the pouch 20 filled with contents such as food before heating by the microwave oven. Thus, the box 10 having a thickness (side height) substantially equal to the thickness of the pouch 20 can be used. Note that the thickness of the pouch 20 is a distance between the two flat plates measured in a state where the pouch 20 placed on the flat plate is placed on a flat surface having a size covering the entire surface of the pouch 20 to be uniform.

  A case where the contents of the pouch 20 housed in the box 10 are heated in a microwave oven will be described.

  The first portion 161 of the front surface 11 which is a boundary 16 with the non-opening portion of the opening portion 15 by pulling the finger hooking portion 17 of the opening portion 15 of the box body 10 inwardly and pulling it up with a finger. The cut lines formed in each of the second portion 162 of the one side surface 13b and the third portion 163 of the other side surface 13d are sequentially cut, and the unsealed portion 15 is separated from the boundary 16 with the unopened portion. Opened in the direction of the upper side surface 13a. Then, as shown in FIGS. 5 and 6, the unsealed portion 15 is folded until the fold facilitating line 18 formed on the back surface 11 comes into contact with the back surface 12 of the remaining portion of the box 10 like a hinge. Thus, when the opening part 15 is folded back until it comes into contact with the back surface 12 of the remaining part of the box 10, the parts where the steam vent parts 21 a, 21 b and 21 c of the pouch 20 are formed are exposed.

  Since the unsealed portion 15 is folded back to the back surface 12 side of the box 10 in this way, the remaining portion (non-opened portion) of the box 10 in which the pouch 20 is stored is the vapor vent portion 21a of the pouch 20. , 21b and 21c are inclined so as to be higher. In this state, the microwave oven packaging body (box 10 and pouch 20) is set in the microwave oven. When the food contents in the pouch 20 are heated by the microwave oven, the pouch 20 expands as shown in FIG. 7 by the water vapor generated from the heated food contents and comes into contact with the back surface 12 of the box 10. The folded-back portion 22 expands and protrudes. Due to the expansion of the pouch 20 and the protrusion of the folded portion 22, as shown in FIGS. 8 and 9, the portions where the steam vents 21 a, 21 b, and 21 c of the pouch 20 are formed rise in the box 10. When the internal pressure of the pouch 20 exceeds a certain limit, steam is spouted from the steam vents 21a, 21b, and 21c formed on the raised part of the pouch 20, and the food content of the pouch 20 is heated by an appropriate pressure. Cooked.

  As shown in FIGS. 8 and 9, due to the expansion of the pouch 20, as shown in FIGS. To do. In contrast to the deformation of the box 10, the deformation is facilitated by the presence of the cut lines 18 a and 18 b at both ends of the easy-to-fold line 18 that becomes the boundary of folding of the opening 15. Further, when the expansion of the pouch 20 is large, the tearing of the back surface 12 of the box body 10 is guided along the easy-to-fold line 18 from the cut lines 18a and 18b, so that the box body 10 suppresses the expansion of the pouch 20. And the unopened portion of the box 18 by the expanding pouch 20 is easily deformed.

  Thus, according to the microwave oven package according to the embodiment of the present invention, the food in the pouch 20 in which the opening 15 is opened and the portions of the steam vents 21a, 21b, and 21c are exposed from the box 10. When the contents are heated by the microwave oven, the box 10 tries to hold down the expansion of the pouch 20 by the cut lines 18 a and 18 b at both ends of the easy-to-fold line 18 that becomes the boundary of folding of the opening 15. And the unfolded portion of the box 18 by the pouch 20 that expands by further inducing the tearing of the back surface 12 of the box 10 along the easy-to-fold line 18 from the cut lines 18a and 18b. Since it becomes easy to deform | transform, the inside pouch 20 comes to be able to fully expand now at the time of the heating by the microwave oven after the box 10 is opened. As a result, the food content in the pouch 20 can be cooked while being effectively pressurized.

  The height of each side surface 13a to 13d of the box 10 is set within a range of 1.1 to 1.5 times the thickness before heating by the microwave oven of the pouch 20 filled with contents such as food, Even when the box 10 having a thickness (side height) substantially equal to the thickness of the pouch 20 is used, the back surface 12 of the box 10 can be torn from the cut lines 18a and 18b, thereby heating the microwave oven. The pouch 20 can expand sufficiently.

  Moreover, since the opening part 15 is folded back to the back surface 12 side of the box body 10, the steam vents 21a, 21b, 21c formed on the pouch 20 by the box body 10 can be held at a relatively high position. During heating, it is possible to reliably prevent the contents from being blown out when the steam is ejected from the steam vents 21a, 21b, 21c of the pouch 20. Further, the jetted steam does not hit the opening 15 and get wet.

  Further, as described above, when the tearing of the back surface 12 of the box body 10 is induced from the cut lines 18a and 18b at both ends of the easy-to-fold line 18 that becomes the boundary of folding of the opening 15 during heating, Since the force that the body 10 tries to hold down the expansion of the pouch 20 is relieved, and the unopened portion of the box 18 is easily deformed by the expanding pouch 20, the unsealed portion 15 folded back to the back surface 12 side It becomes possible to hold down (see FIG. 9), and it is possible to reliably prevent the folded open portion 15 from returning and falling down.

  Moreover, since the opening part 15 can be opened by putting a finger on the hole formed by pushing the finger hook part 17 formed on the front surface 11 of the box body 10 and folding it inside the box body 10 from the perforation line 17a, The dust is not dispersed as in the case where the box 10 is partially cut and opened, and the tab is not accidentally broken as in the case where the tab 10 is picked and opened. Further, the opening operation is easy, and the finger-engaging portion 17 bent from the perforation line 17a reinforces the hole on which the finger is applied, and the force is easily applied. Further, the cutting edge of the cardboard forming the box 10 Since the fingertip does not hit, the opening operation of the opening part 15 can be performed more safely.

  In the microwave oven package according to the embodiment of the present invention, the end portion P1 of each of the side surface 13b of the boundary 16 with the non-opening portion of the opening portion 15 and the second portion 162 and the third portion 163 of the third portion 163, The cut lines 18a and 18b formed on the back surface 12 from P2 are part of the fold facilitating line 18. If the start points (P1 and P2) are common, the cut lines 18a and 18b (cut). And the folding facilitating line 18 may not coincide with each other. For example, the cut lines 18a and 18b may be inclined rather than parallel to the upper side surface 13a. Further, the cut lines 18a and 18b may be either one.

  In addition, a cut line array is formed at the boundary 16 between the unsealed portion 15 and the unopened portion so that the unsealed portion 15 is opened from the boundary 16, but the box having an opening corresponds to the unsealed portion 15. The box 10 as a whole may be formed by pasting the portions (see 2009-51562). In this case, the unsealed portion is opened from the boundary 16 toward the upper side surface 13a by peeling off the pasted portion.

  Furthermore, in the microwave oven package according to the embodiment of the present invention, the unsealed portion 15 is folded back so as to contact the back surface 12 as shown in FIG. You may open so that the upper surface 13a of the box 10 may be earth | grounded like a pouch cosmetic box. Even when the box 10 is opened as described above, the back surface 12 of the box 10 is removed from the cut lines 18a and 18b at both ends of the fold facilitating line 18 which becomes the folding boundary of the opening 15 due to the expansion of the pouch 20. Since it can tear, the force which the box 10 tries to hold down expansion | swelling of the pouch 20 is relieve | moderated, and the pouch 20 can fully expand | swell.

  As shown in FIG. 4, the pouch 20 accommodated in the box 10 has a folded portion 22, but a so-called normal flat pouch in which the folded portion 22 is not formed is used. You can also.

  As described above, the microwave oven packaging body according to the present invention has the effect that the internal packaging bag can sufficiently expand when heated by the microwave oven after the box is opened, and the steam venting portion. It is useful as a microwave oven package having a structure in which a packaging bag such as a pouch that can be heated in a microwave oven is formed in a box.

DESCRIPTION OF SYMBOLS 10 Box body 11 Front surface 12 Back surface 13a Upper side surface 13b Lateral side surface 13c Lower side surface 13d Lateral side surface 15 Opening part 16 Boundary 161 1st part 162 2nd part 163 3rd part 17 Finger hook part 18 Folding easy line 18a, 18b Cut line 14aa , 14ca, 14b Pasting allowance 14ab, 14ac, 14cb, 14cc Folded piece 20 Pouch (packaging bag)
21a, 21b, 21c Vapor vent part 22 Folding part

Claims (6)

A box body having a front surface and a back surface facing each other, and a side surface continuous to an edge of the front surface and the back surface, provided with an opening portion that can be opened on the front surface, and a steam vent portion are formed. A microwave packaging body having a packaging bag housed in the box so as to face the opening portion;
The side surface has at least a first side surface and a second side surface and a third side surface facing each other across the first side surface,
The unsealing portion opens from the boundary with the non-opening portion to the first side surface, and the boundary with the non-opening portion of the unsealing portion extends across the front surface and the second side surface and the first side surface. Following each of the three side surfaces, it extends to the junction between each of the second side surface and the third side surface and the back surface,
A fold facilitating line is formed on the back surface so as to connect an end portion of the boundary at the joint portion between the second side surface and the back surface and an end portion of the boundary portion at the joint portion between the third side surface and the back surface. Formed,
The unsealed part is folded back to the back side with the fold facilitating line as a fulcrum to expose the vapor vent part, and supports the packaging bag stored in the box at an angle, and in that state by a microwave oven When being heated, the boundary of the boundary between the back surface and at least one of the second side surface and the third side surface is allowed to allow deformation of the unopened portion of the box body by the expanding packaging bag. A microwave oven package in which cuts are formed so as to extend from the end portion to the back surface.   The packaging body for microwave ovens of Claim 1 which has a finger hook part formed in the site | part facing the said 1st side surface in the said opening part in the said front surface so that the boundary with the non-opening part of the said opening part may be followed.   3. The finger-hanging portion is formed so as to be surrounded by the boundary portion and a crease line, and a finger is applied to the finger-hanging portion by folding the finger-hanging portion from the crease line to the inside of the box. The package for microwave ovens as described.   The package for microwave oven according to any one of claims 1 to 3, wherein the easy-folding line is formed by a cut line array in which a plurality of cut lines are connected.   The package for a microwave oven according to claim 4, wherein the cut is formed so as to overlap the easy-to-fold line.   The height of the said side surface of the said box is made into the range of 1.1 times-1.5 times the thickness before the heating of the bottom part of the said packaging bag in the state with which the content was filled. Package for microwave oven according to crab.

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