CN108473249A - Heating pouch - Google Patents

Abstract

A kind of heating pouch can carry out putting into boiling water and scald and microwave stove heat.The bag webs material (10) of this heating pouch (1) has the pressure release sealing (2) of release performance, pressure release is by the partially overlapping be bonded part of the part and another part of first-mentioned sheet of the sheet material for constituting bag webs material (10) with sealing (2), and pressure release is removed when internal pressure rises with sealing (2) and formed the deflation access of the inside of bag webs material (10) and the outside coupling of bag webs material (10).Pressure release sealing (2) has easy-peel absciss layer and epidermis (5), epidermis (5) is the resin layer for constituting sealing surface, the sealing surface covers at least aforementioned either side of an aforementioned part for sheet material and aforementioned another part, be bonded relative to uncovered another party, epidermis (5) 100° centigrade sealing intensity than easily peelable floor height.

Description

Heating pouch

Technical field

The present application is related to heating pouch.

Background technology

Now, there are many packaged form quantity heated together with the bag of receiving food.Especially patent document 1 and 2 Shown in microwave stove heat pouch, be can remain be fully sealed packaging unchangeably by the safe ready of micro-wave oven heating cooking And the packaging bag of health.

The maximum of the microwave stove heat pouch of patent document 1 and 2 is characterized in that individually logical steam mechanism automatically.

In this microwave stove heat pouch, bag is expanded because from the steam come out by warmed-up food.If moreover, should Reach certain pressure in bag, then steam is safely discharged from the steam orifice to outside the bag, can be uniformly heated up food.This steam orifice Have safety configurations, there is no pouch bursts, the danger such as content disperses.In turn, though content be liquid because if do not have There is the worry of leakage, no matter so what content is, is all utilized in many cooking foods.

Specifically, Patent Document 1 discloses following packing body for heating treatment.That is, a kind of heat treatment is used Package body, the packing body for heating treatment make its same surface side mutually abut by plastic film, and the heat by Rack is arranged Sealing engagement is the first joint portion of shape of putting the palms together before one, and so that the content of heat treatment is packed inside it, the heat treatment It is a kind of easily openable seal with package body, wherein aforementioned first joint portion is located at aforementioned in the heat treatment of content The upper surface of package body side, and towards central side be arranged to secund side from a square end portion of the package body, because adding When the internal pressure of aforementioned package body caused by heat rises, its pressure release is carried out.

In particular, the peel strength of this easily openable sealing element is 150~1800g/15mm, expanded in aforementioned package body When, across aforementioned first joint portion, short is unilateral because becoming substantially erected state by expanding the tension generated and aforementioned First joint portion is due to the tension of the film of the unilateral aforementioned package body of the length of opposite side relative to the upper surface of aforementioned package body It erects, avoids the abutting or close of the one side at aforementioned first joint portion and the short single side face of aforementioned package body.

In the package body for being made into putting the palms together before one shape, become the first joint portion that this puts the palms together before one has easily openable as described above, In turn, it as described above, in package body, is shaped with the state of its secund side, is arrived inside it by content-filled Afterwards, top is sealed packaging by heat seal, completes the packing body for heating treatment for being suitble to preserve, manage.

When heat treatment is housed in the content in above-mentioned package body, package body is housed in micro-wave oven, according to Set point of temperature and time are heated, if along with this heating, internal pressure is because of the air in the generation of vapor, package body It thermally expands and rises, then the pressure relief portion stripping at the first joint portion is set, internal gas is discharged, as a result, in package body Pressure reduction.It is installed since the first joint portion is amesiality in package body, so when aforementioned package body expands, every The first joint portion, short is unilateral because becoming substantially erected state by expanding the tension generated, and the first joint portion because The tension of the unilateral packaging body thin film of the length of opposite side and erected relative to the upper surface of package body, avoid the one of the first joint portion The abutting or close of side and packaging dignity.Because the intercommunicating pore of pressure relief portion is located at the top of package body, do not generate The leakage from the intercommunicating pore of content.

Therefore, the overpressure risen in package body, due in the appropriate of the first joint portion with easily openable Position, which plays a role, to be allowed to remove, so internal pressure is discharged.

In addition, in patent document 2, disclose a kind of packing body for heating treatment, the packing body for heating treatment by Plastic film makes its same surface side mutually abut, and carries out bag making by heat seal, and set at these thermosealed positions The logical steam joint portion for setting shape of putting the palms together before one, makes the content of heat treatment pack inside the bag making, the heat treatment It is a kind of easily openable sealing element with package body, wherein aforementioned logical steam joint portion clamps between foregoing plastics film The high film of temperature dependency, the logical steam joint portion are located at the upper surface of aforementioned package body when carrying out the heat treatment of content Side carries out the release of the pressure when the internal pressure of the aforementioned package body caused by heating rises, the sealing of this easily openable Part is 3kgf/15mm or more in peeling force under normal conditions, and the peeling force in 90 degree Celsius heat is 0~1200g/15mm, aforementioned The high film of aforementioned temperature interdependence in logical steam joint portion is inserted into the adhesive tape between plastic film, this adhesive tape is by nothing Advise acrylic resin copolymer and 60 weight % of atactic copolymerized polypropene resin, 20 weight % of ethene-alpha-olefin copolymer resin and The co-extrusion film that the mixture of 20 weight % of metallocene linear-low density polyethylene is constituted, or by atactic copolymerized polypropene 60 weight % of resin and atactic copolymerized polypropene resin, 20 weight % of propylene-alpha-olefin copolymers resin, metallocene linear are low close The co-extrusion film that the mixture of 20 weight % of polyethylene is constituted is spent, the logical steam joint portion of aforementioned shape of putting the palms together before one is through aforementioned tape heat Sealing.

The contents such as food can be remain to packaging unchangeably in the package body of filling food etc. according to above structure Heating cooking is carried out by micro-wave oven, and the rupture of the package body caused by internal heating unlifting pressure can be prevented.In particular, Not only the structure of package body is simple, and bag making or it is content-filled pack aspect, also function to reduce and be manufactured into This, inexpensively provides the distinctive effects such as packaged food to market.

Citation

Patent document

Patent document 1：No. 3035484 bulletins of Japanese Patent No.

Patent document 2：No. 4150513 bulletins of Japanese Patent No.

Invention content

Problems to be solved by the invention

Inventor herein is not satisfied with above-mentioned microwave stove heat pouch, further conscientiously studies, seeks repeatedly A kind of heating pouch being suitable for microwave stove heat and put the boiling hot both sides of boiling water into is provided.

For the means to solve the problem

The present invention provides a kind of heating pouch, which uses the bag webs material of pouch to have as pressure release sealing The sealing of release performance, aforementioned pressure release with sealing be the sheet material that will constitute aforementioned bag webs material a part with aforementioned The part that another part of material is overlappingly bonded, aforementioned pressure release with sealing be when internal pressure rises remove and formed will before State the part of the deflation access of the inside of bag webs material and the outside coupling of aforementioned bag webs material.

Aforementioned pressure release sealing in the present invention has easy-peel absciss layer and epidermis, and aforementioned epidermis is that composition is close The resin layer of cover, the sealing surface cover at least aforementioned either side of an aforementioned part for sheet material and aforementioned another part, Relative to another party's bonding being uncovered.This epidermis using the easily peelable floor height of tensile yield point stress ratio at high temperature, The raw material reduced at high temperature with the interlaminar strength of easy-peel absciss layer in splitting type, are especially made as Celsius 100 Structure of the sealing intensity of degree than aforementioned easily peelable floor height.

In addition, above-mentioned " another part that a part for sheet material is overlapped to first-mentioned sheet " refers in addition to including aforementioned Further include clamping object through others indirectly to weigh first-mentioned sheet each other other than the case where material is overlapped as being in direct contact with one another Folded situation, it may for example comprise the adhesive tape by seperated with aforementioned two sheet material formed is clipped in two sheet material weights between aforementioned two sheet material Folded situation.

In turn, " an aforementioned part for epidermis cover sheets and at least aforementioned either side of aforementioned another part " refers to Also include being pressed from both sides through others other than directly contacting the case where being covered with the either side of first-mentioned sheet including epidermis The case where dress object indirectly covers the either side of first-mentioned sheet, for example, being also arranged on and aforementioned two panels including epidermis On the surface for the adhesive tape that material is formed seperatedly on, the case where covering the either side of first-mentioned sheet indirectly through the adhesive tape.It is clamping In the case of the adhesive tape, matching between making the adhesive tape be installed in aforementioned two sheet material the setting epidermis on the two sides of the adhesive tape For setting, such as the epidermis of the surface side of the adhesive tape, also using adhesive tape and the epidermis of the inside side as clamping between object Ground connection makes the structure of the above-mentioned sheet material for covering a side indirectly, for the epidermis of the inside side of the adhesive tape, by adhesive tape and The epidermis of surface side makes the structure of the above-mentioned sheet material for covering another party indirectly as object is clamped indirectly.

In addition, the present invention provides a kind of heating pouch, which uses the bag webs material of pouch to be sealed as pressure release Portion has a sealing of release performance, aforementioned pressure release with sealing be the sheet material that will constitute aforementioned bag webs material a part with The part that another part of first-mentioned sheet is overlappingly bonded, aforementioned pressure release with sealing are removed and shape when internal pressure rises At by the part of the inside of aforementioned bag webs material and the deflation access of the outside coupling of aforementioned bag webs material, aforementioned pressure is discharged with close Envelope portion has flat part and pearl portion, which constitutes flat sealing surface, which is formed compared with aforementioned flat part Towards the inner face side prominent shape outstanding of aforementioned bag webs material.

In addition, the present invention can provide a kind of heating for scalding progress as the heating carried out by micro-wave oven and by putting boiling water into The pouch used.

In turn, the present invention provides a kind of heating pouch, which is characterized in that the heating uses the bag webs material of pouch as pressure Release sealing has the sealing of release performance, and aforementioned pressure release is the sheet material that will constitute aforementioned bag webs material with sealing A part and another part of first-mentioned sheet overlappingly be bonded part, aforementioned pressure release with sealing is risen in internal pressure When stripping and formed the part of the inside of aforementioned bag webs material and the deflation access of the outside coupling of aforementioned bag webs material, aforementioned pressure Power release sealing has the sealing mechanism of at least any one party of the first sealing mechanism and the second sealing mechanism, aforementioned pressure Release with sealing be make 100° centigrade compressive resistance be 6~30kPa part, can carry out by put into boiling water scald and The heating that micro-wave oven carries out.

In aforementioned first sealing mechanism, aforementioned pressure release sealing has easy-peel absciss layer and epidermis, aforementioned table Cortex is the resin layer for constituting sealing surface, and the sealing surface is by an aforementioned part for sheet material and at least aforementioned of aforementioned another part The side that anticipates covers, relative to another party's bonding being uncovered.

In aforementioned second sealing mechanism, aforementioned pressure release sealing has flat part and pearl portion, the flat part structure At flat sealing surface, which is formed outstanding prominent towards the inner face side of aforementioned bag webs material compared with aforementioned flat part Shape, aforementioned pearl portion make in the compressive resistance of 100° centigrade to be 6~30kPa, and aforementioned pearl portion is that compressive resistance is bigger than aforementioned flat part Part.

In addition, herein, it includes being scalded and for the boiling water of putting into of culinary art for heating sterilization (boiling to put boiling water into and scald Heating) put into boiling water scald both sides.

In the present invention, following structure can be made to implement, that is, aforementioned pressure release with sealing be have it is easily peelable The part of adhesive tape, aforementioned easily peelable adhesive tape are easily peeled off in the high temperature higher than room temperature than at room temperature.

In the present invention, the structure that can also be made is implemented, that is, constitute aforementioned bag webs material sheet material have it is aforementioned easy-peel Absciss layer.By forming aforementioned easy-peel absciss layer with the sheet material sheet for constituting aforementioned bag webs material in advance, even if in order to form aforementioned pressure Power release sealing can also be implemented without the use of aforementioned tape.

According to specific scheme above, the present invention provides a kind of heating pouch, and the bag webs material of the heating pouch is made Has the sealing of release performance for pressure release sealing, aforementioned pressure release is that will constitute aforementioned bag webs material with sealing Sheet material a part and another part of first-mentioned sheet overlappingly be bonded part, aforementioned pressure release sealing is in internal pressure It is removed when rising, forms the deflation access of the outside coupling of the inside and aforementioned bag webs material that make aforementioned bag webs material, added this In heat pouch, about aforementioned pressure release sealing, has following schemes.

As first scheme, aforementioned pressure release sealing makes the compressive resistance in 100° centigrade be 6~30kPa.

As alternative plan, aforementioned pressure release sealing makes the sealing intensity in 100° centigrade be 1.3~20N/ 15mm。

As third program, in above-mentioned alternative plan, aforementioned pressure release sealing makes the sealing in 100° centigrade Initial stage peak value/median of intensity is 1.3~3.0.

Can also be the structure that aforementioned pressure release sealing separately has first and second above-mentioned scheme, It can also be the structure for having aforementioned two schemes together.Alternatively, it is also possible to being that aforementioned pressure release sealing has whole The structure of first above-mentioned~third program.

In addition, the present invention can provide a kind of thickness for making aforementioned epidermis as 3~40 μm of heating pouch.

The present invention is by above-mentioned each scheme, reliable by being removed when internal pressure rises when carrying out microwave stove heat Ground forms deflation access, can inhibit to break caused by the internal pressure in bag rises from deflation access by releases such as vapor It splits.At the same time, when put into boiling water and scalding, (the fire-bar of 100° centigrade or so under conditions of putting boiling water into and scalding Under part), aforementioned pressure release sealing is not simply peeled away because internal pressure rises, and can be kept without forming deflation access The air-tight state of bag, can inhibit content flowed out into hot water etc. as the bad state of affairs generation.

The effect of invention

By using above structure, the present invention can be easy a kind of heating for being suitable for being carried out by micro-wave oven of offer and put into open The shared heating pouch scalded in water.

That is, can be easy to provide a kind of following heating pouch, the heating pouch rises in microwave stove heat internal pressure When remove, be reliably formed deflation access, prevent because internal pressure rise caused by rupture, in addition, put into boiling water scald when, i.e., So that internal pressure rising is also not simply removed, that is, prevents broken bag, not simply make the inside and outside contact of bag webs material, do not make content Object is flowed out into hot water.

In particular, by forming epidermis, it can be easy to assign necessary compressive resistance to pressure release sealing, can hold Purpose is resistance to as both easily realizing deflation when being suitable for taking into account microwave stove heat and put seal when boiling water scalds into Compressive Strength.In addition, by forming epidermis, the design of pressure release sealing becomes easy, and the stability of quality might as well.

In turn, a kind of following construction is provided, the construction is by pressure release sealing and above-mentioned flat part one It rises and forms above-mentioned pearl portion, pressure release sealing can become is difficult to the structure removed in pearl portion compared with above-mentioned flat part, prevents Only when internal pressure rises, pressure release is integrally removed quickly with sealing, it is easy to ensure that being suitable for microwave stove heat and putting into open The compressive resistance scalded in water.

More specifically, present inventor research as a result, obtaining following opinion, that is, make the resistance to pressure in 100° centigrade Degree is 6~30kPa, this is suitable for meeting microwave stove heat and putting boiling water into scalding both sides, and the present invention is to provide for stablizing And it is readily derived the scheme of the compressive resistance.

Description of the drawings

Fig. 1 (A) is the schematic top of heating pouch for the present invention, and (B) is the heating pouch to form (A) Enlarged cross-sectional view is cut away in the part of bag webs material, and (C) is the X-X sectional views of (A), and (D) is that major part amplification is cut away in the part of (C) Sectional view, (E) are that major part enlarged cross-sectional view is cut away in the part of (D), (F) be indicate the pressure release sealing of (D) because The generation of steam when microwave stove heat in pouch and major part enlarged cross-sectional view is cut away in the part of state removed, (G) it is the definition graph for indicating the passage of the peel strength of heating pouch shown in (A)~(D).

Fig. 2 (A) is the definition graph of a process of the manufacture for the heating pouch for indicating Fig. 1 (A), and (B) is indicated (A) The definition graph of next process, (C) are the definition graphs for the next process for indicating (B), (D) be in relation in the process of (A)~(C) into The definition graph of the mechanism of the intermittent feeding of capable plastic film, (E) are each sections for indicating one embodiment of the present of invention Size definition graph.

Fig. 3 (A) is the definition graph for the other manufacturing methods for indicating heating pouch for the present invention, and (B) is to having The pressure release for closing the heating pouch of the present invention indicates that the part of other embodiments is cut away major part and put with sealing Big sectional view, (C) are to indicate that major part amplification is cut away in the part of other embodiment with sealing to aforementioned pressure release Sectional view, (D) are to indicate that the part of other embodiment is cut away major part and put with sealing to aforementioned pressure release Big sectional view, (E) are to indicate that major part enlarged cross-sectional view is cut away in the part of other embodiments of easily peelable adhesive tape, (F) It is to indicate that major part enlarged cross-sectional view is cut away in the part of other embodiments of easily peelable adhesive tape, (G) is to indicate easily peelable Major part enlarged cross-sectional view is cut away in the part of the other embodiment of adhesive tape, (H) be indicate easily peelable adhesive tape it is other its Major part enlarged cross-sectional view is cut away in the part of its embodiment, and (I) is indicate easily peelable adhesive tape another other Cut away major part enlarged cross-sectional view in the part of embodiment.

Fig. 4 (A) is to indicate that the part of other embodiments is cut away major part and put with sealing to above-mentioned pressure release Big sectional view, (B) are to indicate that the part of the forming method of pressure release sealing shown in (A) is cut away major part amplification and cutd open View, (C) are to indicate that major part enlarged cross-sectional view is cut away in the part of the exfoliated state of aforementioned pressure release sealing, (D) It is that major part enlarged cross-sectional view is cut away in the part of other embodiment to be indicated with sealing to aforementioned pressure release, (E) is Major part enlarged cross-sectional view is cut away in the part of other embodiment to be indicated with sealing to aforementioned pressure release, (F) It is the definition graph for indicating the passage of the peel strength of pressure release sealing shown in (D).

Fig. 5 (A) is that major part is cut away in the part of the other examples for the forming method for indicating pressure release sealing Enlarged cross-sectional view, (B) (C) (D) (E) are to indicate that major part enlarged cross-sectional view is cut away in the part of the forming method different from (A).

Specific implementation mode

For the mode to carry out an invention

In the following, being based on attached drawing, illustrate embodiments of the present invention.

As it is for the present invention heating package body heating pouch form can select tripartite's sealing, quad seals, It puts the palms together before one flat bag, the arbitrary form such as triangle bag of putting the palms together before one.In addition, heating uses pouch can be as in one face automatic filling of a face bag making Tolerant pouch is implemented, also can be after having made the bag webs material of advance bag making, as being filled with content and seal bag webs material Pouch implement.

(basic structure)

Fig. 1 (A) indicates to have accommodated the heating pouch 1 of the state of content.The heating of this embodiment pouch 1 is Has the bag webs material 10 of the sealing of release performance as pressure release sealing 2.Pressure release sealing 2 is will to constitute A part for the sheet material of the bag webs material 10 part being sealed Chong Die with another part of first-mentioned sheet, pressure release sealing Portion 2 is to be removed when the internal pressure caused by microwave stove heat rises due to form inside and the heating pouch 1 for making heating pouch 1 Outside coupling deflation access part.Pressure release sealing 2 is the part of disengaged vapor, pressure release sealing Portion 2 is so that the heating as bag webs material 10 is released to final purpose with the pressure in pouch 1.

Bag webs material 10 as shown in Fig. 1 (A) (C), has downside sheet material portion 12 and overlappingly configures in downside in this instance Upside sheet material portion 11 on sheet material portion 12 is the vertical view that food f is accommodated between hypopleurite material portion 12 and upside sheet material portion 11 Substantially rectangular part.

The above-mentioned pressure release sealing 2 of release performance is arranged on upside sheet material portion 11.That is, pressure release seals It is in be overlapped with putting the palms together before one shape to have carried out bonding that portion 2, which is by the another part in the part in upside sheet material portion 11 and upside sheet material portion 11, Part.As for pressure release sealing 2, will illustrate in detail below.

Substantially rectangular heating is overlooked to be sealed by end edge 3c, 3d of front end edge 3a, back end edge 3b and left and right respectively with pouch 1 Downside sheet material portion 12 and upside sheet material portion 11, food f is closed.The sealing can be carried out by heat seal.

In order to be distinguished with the above-mentioned pressure release sealing 2 for forming deflation access, used with needing correspondingly to heat Above-mentioned each end edge of pouch 1 is known as joint portion.Specifically, the front end edge 3a after sealing is known as preceding joint portion 3a, will seal Joint portion 3b after back end edge 3b afterwards is known as, is known as right junction portion 3c, by the left end side after sealing by the right end side 3c after sealing 3d is known as left junction portion 3d.

As the bag webs material 10 of left and right as shown in the top layer in Fig. 2 (C), the heating pouch before the receiving of food 1, a side of end edge 3c, 3d of left and right is opened, after accommodating food, by open end edge as shown in Fig. 1 (A) (C) Sealing.

In this instance, constitute above-mentioned bag webs material 10 upside sheet material portion 11 and downside sheet material portion 12 by a plastic film p It is formed.Therefore, upside sheet material portion 11 and downside sheet material portion 12, the side in end edge 3c, 3d of left and right are connected before accommodate food. That is, for according to the bag webs material of the top layer of Fig. 2 (C), then the left end side 3d of the bag webs material 10 on right side is opened, right end side 3c It is turned off from originally, the right end side 3c of the bag webs material 10 in left side is opened, and left end side 3d is turned off from originally.

As long as above-mentioned bag webs material 10 has the heating of micro-wave oven in the plastics of heat resistance.Above-mentioned bag webs material 10, such as Shown in Fig. 1 (B), there is base material 10a and sealant layer 10b.Sealant layer 10b is laminated on the face of a side of base material 10a Layer.

As base material 10a, raw materials for plastics production of the heating with heat resistance to micro-wave oven are used.For example, base material 10a can be by With the biaxially oriented film of the compositions such as polypropylene, polyamide, polyester, ethylene-vinyl alcohol copolymer, vinylidene chloride-acrylic acid Ester type copolymer film, oxidation aluminium-vapour deposition Biaxially oriented polyester film, polyhexamethylene adipamide class polyamide oriented film (including With the layer coextrusion laminate film of 6- nylon) etc. raw material formed.But if has the base of heat resistance to the heating of micro-wave oven Material is then used as base material 10a raw materials for plastics production other than the above can also be used to implement.

As above-mentioned sealant layer 10b, using excellent to sealing intensity and mechanical strength both sides, heating can be born by, which having, kills Bacterium, microwave oven cooking heat resistance and intensity, and the film that the content resistance such as oil resistivity are excellent.As such film, tool It says to body, can enumerate and the highdensity each polyethylene of straight-chain low density polyethylene (LDPE), middle density, homopolymerization is used alone or as a mixture Each polypropylene of random copolymerization block copolymerization, the film of alpha olefin copolymer, other materials.In addition, sealant layer 10b, By microwave stove heat, puts into also not generate when boiling water scalds the heating carried out and be removed caused by softening.

Although not shown, but at least one of above-mentioned joint portion 3a~3d formed Kaifeng recess.It is aforementioned recessed Mouth is the part for becoming starting point when tearing bag webs material 1, as long as being easy the incision to break a seal.Recess can also be made The notch of V shape, in addition it is also possible to the notch of such as U-shaped be made, alternatively, it is also possible to solely make a threadiness Incision.

(pressure release sealing 2)

Pressure release sealing 2 above-mentioned, it is 6~30kPa preferably to make the compressive resistance in 100° centigrade.

Anti- broken bag in heating is scalded as the boiling water put into including being sterilized including boiling in culinary art heating Numerical value, such pressure release make the lower limiting value in the compressive resistance of 100° centigrade be 6kPa with sealing 2.This compressive resistance Lower limiting value is then to immerse tens of cm or less downwards in this way from the water surface in 95 degree of water tank Celsius for being sterilized according to boiling Under conditions of anti-broken bag numerical value.That is, in boiling is sterilized, according to mode, need it is resistance in 95 degree of water tank Celsius from water Tens of cm hydraulic pressure below is left in face, avoids broken bag, is restricted to above-mentioned lower limiting value.In particular, in order to be more reliably prevented from brokenly Bag, it is 8kPa preferably to make the lower limiting value.

In addition, as described above, pressure release makes the upper limit value of the compressive resistance in 100° centigrade be with sealing 2 30kPa.Lead to vapor permeability and particularly preferred numerical value when this upper limit value is in order to ensure microwave stove heat.This is because needing Steam is led in pressure in the vapor generated from food due to microwave stove heat generates.In this instance, especially for more may be used Logical steam is carried out by ground, it is 25kPa preferably to make the upper limit value.

Upper limit value by making compressive resistance is above-mentioned 30kPa, if the internal pressure of heating pouch is more than 30kPa, small The steam generated in bag is noiseless and is smoothly discharged.

In addition, pressure release also can be by making the sealing in 100° centigrade from the viewpoint of sealing intensity with sealing 2 Intensity is implemented for 1.3~20N/15mm.

In turn, pressure release with the ratio of sealing 2 from initial stage peak value/median it is such from the viewpoint of, also can be by making Implement for 1.3~3.0 in initial stage peak value/median of the sealing intensity of 100° centigrade.

Above-mentioned numberical range is highly desirable, but can take into account microwave stove heat and put the case where boiling water scalds the two into Under, even having some deviations with the numerical value of above-mentioned each intensity, the range of ratio also there is no problem.

The pressure release of this embodiment is more specifically illustrated with sealing 2.

As shown in Fig. 1 (A) (D), pressure release sealing 2 has the first sealing mechanism 21 and steam orifice 8.

(the first sealing mechanism 21)

First sealing mechanism 21 has easily peelable adhesive tape 20.Easily peelable adhesive tape 20 has the adhesive tape main body as easy-peel absciss layer 4 and epidermis 5.In the following, with needing correspondingly, adhesive tape main body 4 is known as easy-peel absciss layer 4.

As shown in Fig. 1 (D), easily peelable adhesive tape 20 is inserted into the part in upside sheet material portion 11 and overlaps this by putting the palms together before one Between the another part in the upside sheet material portion 11 in a part.Epidermis 5 is arranged on as the upper surface of easily peelable adhesive tape 20 The surface side of easily peelable adhesive tape 20 forms sealing surface m in the surface side of easily peelable adhesive tape 20.In this instance, easily peelable adhesive tape 20 Below the inside of i.e. above-mentioned adhesive tape main body 4 be directly bonded in upside sheet material portion 11.In the example shown in Fig. 1 (D), only exist Epidermis 5 is formd on the single side of easily peelable adhesive tape 20.

Even if using in this way in the case where foring easily peelable adhesive tape 20 of epidermis 5 in adhesive tape main body 4, as pressure Power release is whole with sealing 2, also described above as, it is above-mentioned 6~30kPa to make the compressive resistance in 100° centigrade, more excellent Choosing makes the compressive resistance in 100° centigrade be above-mentioned 8~25kPa.

As epidermis 5, the use of stretching yield stress (JIS K 7161,7162) is 10-40MPa, can be heated seal, The resin of the sealing intensity of 30N/15mm or more is generated under normal conditions.

Specifically, epidermis 5 can be formed by vistanex.In addition, epidermis 5 can individually or mixedly use straight chain The highdensity each polyethylene of shape low density polyethylene (LDPE), middle density, homopolymerization random copolymerization block copolymerization each polypropylene, α- Olefin copolymer and other materials.

For the preparation method of epidermis 5, have together with other layers by squeeze together carry out it is film shaped or by squeeze Laminate layer platen press directly assigns, or assigns method as film by dry lamination method.But be not will by it is well known its The method that its preparation method forms epidermis 5 forecloses.

Above-mentioned adhesive tape main body 4 is the part formed by the high film of temperature dependency, is the part for constituting easy-peel absciss layer.

As adhesive tape main body 4, such as the polyolefin resins or polyester resin etc. such as polypropylene-based, polyethylene kind can be used Raw material with sealant layer 10b and heat sealability.

Herein, the mechanism of the stripping of easy-peel absciss layer is illustrated, as mechanism for stripping, there is (a) interface peel, (b) Splitting, (c) agglutination stripping according to circumstances can be selective or comprehensively using them.

(a) interface peel refers on the boundary of bag main body (sheet material for constituting bag webs material) and insertion adhesive tape (easily peelable adhesive tape 20) It is easily peelable in face.Therefore, exist in the intermediate layer not related in the case of easy-peel absciss layer 4 (interface peel is not present).

(b) splitting refers to being removed in the interlayer of epidermis 5 and easy-peel absciss layer 4 after tearing up epidermis 5, The stretching yield stress and the layers cementing power of epidermis 5 and easy-peel absciss layer 4 of epidermis 5 influence peel strength.

(c) agglutination stripping refers to that the raw material of easy-peel absciss layer 4 itself are destroyed, and passes through the moderately setting point in continuous phase Dephasing, adjustment cohesive force are made.

In the case of there is easy-peel absciss layer 4 in the intermediate layer, intensity when also influencing to tear up epidermis 5.

As the resin combination for forming easy-peel absciss layer 4 as above-mentioned agglutination peeling layer, for example, can enumerate low close It spends in polyethylene and mixes the combination of polybutene.

The thickness of epidermis 5 makes 3~40 μm, is preferably made to 3~30 μm, more preferably makes 3~15 μm.With regard to epidermis 5 Thickness for, most preferably make 5~15 μm.

As described in the explanation of manufacturing method below, by the way that the insertion of above-mentioned easily peelable adhesive tape 20 is made into It puts the palms together before one between the folding line of the above-mentioned plastic film p before shape, can epidermis 5 be set in pressure release sealing 2.

In this instance, it is by the high film of above-mentioned temperature dependency, for example, straight-chain low-density is poly- as epidermis 5 The layer of feed stock material of ethylene system, which is stacked in, to be formed in adhesive tape main body 4.

Epidermis 5, is polyolefin layer in this instance, and epidermis 5 is the film and polyolefin by that will form adhesive tape main body 4 The layer being formed on the easily peelable adhesive tape 20 i.e. surface of adhesive tape main body 4 is squeezed together.

In addition, in this instance, the above-mentioned formation of epidermis 5 is to the easily peelable adhesive tape 20 (adhesive tape main body 4) covered Surface assign sealing surface m.In microwave stove heat, due to because adding thermogenetic boosting, the high easy-peel absciss layer of temperature dependency Strength reduction, and as shown in Fig. 1 (F), due to the expansion of pouch, epidermis 5 splits, and pressure release is removed with sealing 2, As the state of steam can be led to.In addition, the 5a of Fig. 1 (F) indicates the slight crack of epidermis 5.

Easily peelable adhesive tape 20, when being heated to high temperature with normal temperature phase ratio, because there are vapour pressures in bag, with room temperature When compared to being easily peeled off relative to above-mentioned bag webs material 10, and can simply be assigned by the adjustment of epidermis 5 necessary The design of peel strength can be such that the peel strength becomes stable in turn.

It, and can be easy by what is manually simply broken a seal at normal temperatures that is, form the easily peelable adhesive tape 20 of above-mentioned epidermis 5 Film difference is peeled off, the adhesive tape for having the property being reliably peeled if reaching authorized pressure by heating is made.It therefore, can letter It singly carries out reliably making the design that bag webs material 1 breaks a seal by easily peelable adhesive tape 20 when internal pressure rises in microwave stove heat.It is right Epidermis 5 can be implemented using the well known raw material other than the raw material illustrated.As long as in addition, as described above, easy-peel The structure of epidermis 5 is configured on surface from adhesive tape 20, easily peelable adhesive tape 20 also can be further arranged together as with epidermis 5 The easily peelable adhesive tape of the more layers of layer other than epidermis 5 is implemented.

If in more detail referring to the relationship of bag webs material 10 and easily peelable adhesive tape 20 shown in Fig. 1 (D), such as Fig. 1 (E) institute Show, epidermis 5 is to provide the sealing surface of the sealant layer 10b bondings relative to bag webs material 10 in a manner of it can be removed in boosting The part of m.

For example, herein in structure shown in Fig. 1 (E), for bag webs material 10, sealant layer 10b has 60 μm of thickness, Base material 10a is the Biaxially orientated polyamide film that thickness is made to 15 μm.Moreover, herein in example shown in Fig. 1 (E), just press For power release sealing 2, the thickness of adhesive tape main body 4 is made 25 μm, the thickness of epidermis 5 is made 5 μm.With regard to each layer For thickness, above-mentioned numerical value is to illustrate, as long as can ensure that the above-mentioned stripping for taking into account microwave stove heat and putting the boiling hot the two of boiling water into Numerical value from intensity can then be changed to other numerical value to implement.

In addition, the peel strength between the layer and the layer in upside sheet material portion 11 of adhesive tape main body 4, is than the stripping in epidermis 5 The peel strength strong from intensity.

Pressure release sealing 2 be throughout between above-mentioned front end edge 3a and back end edge 3b front and rear width direction substantially The pressure release sealing that whole region is formed.Although can also be used as the whole region in above-mentioned front and rear width direction equably The pressure release sealing of stripping, but particularly preferably it is pre-formed the front and rear width direction for making pressure release sealing 2 The other positions ground above-mentioned steam orifice 8 removed of the specified position prior to the front and rear width direction.

That is, preferably, when heating pouch 1 boosts because of microwave stove heat, above-mentioned steaming is arranged as pressure relief portion Reliably vapor is discharged to outside from the steam orifice 8 for gas port 8.

As shown in Fig. 1 (A), steam orifice 8 is arranged on the part for covering the easily peelable adhesive tape 20 in upside sheet material portion 11, Steam orifice 8 is configured on the middle section between the above-mentioned front end edge 3a of pressure release sealing 2 and back end edge 3b.Steam Mouth 8 is that the base portion side from the front end sides 2a of pressure release sealing 2 towards pressure release sealing 2 (does not reach the base The depth in portion) cut away a part of notch.In addition, steam orifice 8 is also the non-bonded part not sealed bag webs material 10.Micro- When wave stove heat, pressure release is erected due to the expansion of heating pouch 1 (Xiang direction shown by arrow Y) with sealing 2, steam Mouth 8 becomes the topmost (Fig. 1 (C)) of heating pouch 1.

When being expanded caused by microwave stove heat, steam is discharged quickly from steam orifice 8, is discharged with close in pressure Envelope portion 2 is in easily peelable adhesive tape 20, and steam is from the effect of epidermis or even pearl layer from steam orifice 8 to shown in the arrow Y of Fig. 1 (C) Direction be discharged outright.

As for easily peelable adhesive tape 20, it can also make and be also equipped with figure on the basis of having above-mentioned easy-peel absciss layer 4 and epidermis 5 The easily peelable adhesive tape of basal layer 9 shown in 3 (E) is implemented.

Basal layer 9 is with above-mentioned epidermis 5 again it is preferred to the use of stretching yield stress (JIS K 7161,7162) be 10- 40MPa can be heated seal, and generate the resin of the sealing intensity of 30N/15mm or more under normal conditions.

That is, for basal layer 9, it can also be formed by vistanex, in addition, basal layer 9 individually, can be used mixedly directly The highdensity each polyethylene of linear low density polyethylene, middle density, homopolymerization random copolymerization block copolymerization each polypropylene, Alpha olefin copolymer, other materials.

In addition, basal layer 9 can also be made to be two layers or more, one layer therein will not lie on sealing surface makes biaxial orientation Polyester film, Biaxially orientated polyamide film, biaxially oriented polypropylene film, No yield point polypropylene film, other films, by This, can be allowed to the effect for having anti-elongation.

(manufacturing method of the first sealing mechanism 21)

The manufacturing method of heating pouch shown in explained in general Fig. 1 (A)~(D).

This manufacturing method is to execute following 1)~5) each process method.

1) process is folded into

In manufacturing line, make a band-like plastic film for having above-mentioned base material 10a and sealant layer 10b on one side P continuously flows, and makes the sides sealant layer 10b of the plastic film towards inside on one side, is folded into " ひ " font using guide plate. Specifically, as shown in Fig. 2 (A), seen in the end face of band-like plastic film p, the flat bag-shaped of upper opening is made, at this The top of bag rolls over the side side v, w of the left and right of plastic film p in a manner of to the extending laterally outside of this bag in triangular shape Enter.In addition, in fig. 2,16 indicate the invagination part of the left and right at the bottom of above-mentioned triangle.

2) adhesive tape is inserted into process

It is parallel with above-mentioned invagination process, process is inserted by adhesive tape on one side and is inserted into release performance adhesive tape 20, on one side by leading Last invagination is carried out to plastic film p to plate (not shown), is closed into triangular shape.

That is, as shown in Fig. 2 (B), by the side side v, w of above-mentioned left and right, inside is rolled over towards each other, to the lowest level of Fig. 2 (C) Docking as shown in the picture.The 13 of Fig. 2 (B) indicate the folding line for folding into side v, w inwardly.

In addition, the z of Fig. 2 (C) indicates the direction of feed of plastic film p.

In the state of shown in Fig. 2 (C), the right end as right junction portion 3c is in 3c and when as the left end of left junction portion 3d 3d is engaged not over sealing respectively, is the folding line formed as triangle bag by rolling over a sheet material.

3) index(ing) feed process

If shown in Fig. 2 (D), by mentioned strain regulating roller d, the flowing of plastic film p is made intermittently to move.Specifically It says, the production line of conveying plastic film p has the multiple rollers for making plastic film p move and then being guided to the movement.Respectively Roller is the structure being drawn as circle in Fig. 2 (D).Mentioned strain regulating roller d in the roller and position is secured Other rollers are different, can move up and down.In above-mentioned production line, in the upstream side z1 of dance roller d, plastic film p Continuously feed.On the other hand, the fortune up and down for passing through dance roller d in the downstream side z2 of dance roller d, plastic film p It is dynamic to be intermittently fed.

4) steam orifice formation process

Steam orifice 8 is formed by vertical sealing device (not shown), by slit by steam orifice sealing end, that is, above-mentioned folding line 13 Neighbouring ear 13a is removed.

5) side seal process

By being heated seal the invagination part 16 of above-mentioned left and right by side-sealing device (not shown), side seals are formed That is left and right joint portion 3c, 3d.But as the right end of right junction portion 3c in 3c and 3d when as the left end of left junction portion 3d, It can not engaged respectively by sealing, but it is constant to maintain above-mentioned folding line.

6) horizontal sealing process

In the downstream side of mentioned strain regulating roller d, the direction of feed by horizontal sealing device (not shown) pair with plastic film p The direction of intersection is intermittently sealed, and forms transversal sealing portion 3e.

7) horizontal sealing cut off operation

In above-mentioned transversal sealing portion 3e, by cutting machine (not shown) along transverse direction segmentation plastic film p.Divided by this, Sequentially form pair of right and left bag webs material 10.

(the advantages of above-mentioned manufacturing method)

By by it is above-mentioned 1)~7) process, pair of right and left microwave can be effectively manufactured in a manner of additional lateral two sides Stove pouch.Finally, downside sheet material portion 12 is cut off, in the top layer of such as Fig. 2 (C), as illustrated, left and right pair can be formed The two bag expanding sheet materials claimed.

Method as shown in Figure 2, can be on the basis of general bag making, and efficiency is made well in a manner of additional lateral two sides Make micro-wave oven pouch.

In addition, the use of release performance adhesive tape, easily opening for easily openable is assigned with as the privileged site to bag webs material 10 The processing of envelope property carries out release agent coating, sided corona treatment etc. and compares, stay in grade, in terms of cost favorably.

In turn, it by the subsidiary dance roller d in equipment, can be folded into when making plastic film p continuously flow. It can inhibit the variation of the invagination size about flow direction as a result,.In addition, with preventing invagination position being staggered or rolling over downstream Enter open effect, can prevent bad, stay in grade, loss late can be reduced.

In addition, by the way that dance roller d is made the big major diameter of diameter or right compared with the other rollers for constituting production line The additional bumps of roller circumference, can inhibit to fold into change in location.

Be inserted into release performance adhesive tape by being inserted into the opportunity in process in narration in above-mentioned adhesive tape 2), can without strain by Adhesive tape is inserted into specified position.If implementing to be inserted into downstream by comparison, adhesive tape must be made long in transverse direction movement (substantially) bag The amount of degree, become adhesive tape fracture reversion adhesive tape damage etc. poor prognostic cause.

(passage of the peel strength of the first sealing mechanism 21)

For having pouch shown in Fig. 1 (D)~(F) of the first sealing mechanism 21, Fig. 1 (G) indicates heating boosting When the pressure release peel strength of sealing 2 passage.The longitudinal axis of Fig. 1 (G) indicates that peel strength, horizontal axis indicate the time.

It is removed herein as initial value in the part of the curve graph of Fig. 1 (G) surrounded by the circle of single dotted broken line The peak of intensity, as shown in the median of the circle encirclement by dotted line thereafter, peel strength reduces, and steadily elapses.Therefore, energy Following situations is held, the big peel strength at the pressurization initial stage that the epidermis portion 5 shown in Fig. 1 (F) that can ensure that splits, in epidermis After 5 split, peel strength reduces, and stablizes in certain state.

(modification of the structure of bag webs material 10)

In the embodiment shown in figure 2, constitute bag webs material 10 upside sheet material portion 11 and downside sheet material portion 12 respectively by One plastic film p is formed.In addition, as shown in Fig. 3 (A), upside sheet material portion 11 and downside sheet material portion can also be used as single landform At plastic film p, and by by each right end of plastic film p while 3c each other, each left end while 3d it is sealed against one another, as being made into The structure of one is implemented.In addition, Fig. 3 (A) indicates the state seen from direction identical with the undermost figure of Fig. 2 (C).

(modification for having the pressure release sealing 2 of the first sealing mechanism 21)

Different from embodiment shown in Fig. 1 (D), easily peelable adhesive tape 20 can also be made as shown in Fig. 3 (B) to be had The structure of extension h is implemented.Extension h is the inside instant food of the bag to heating pouch 1 in easily peelable adhesive tape 20 The sides receiving space k position outstanding.

In addition, any one in the case where having extension h and not having extension h, epidermis 5 all may be used To make the structure being arranged in the upper surface of adhesive tape main body 4 side, the structure that the side below adhesive tape main body 4 is set can also be made.

In addition, in the embodiment shown in Fig. 1 (D)~(F), easily peelable adhesive tape 20 can be made only i.e. easy-peel in single side The structure of epidermis 5 is set on the surface (above) from adhesive tape 20 (adhesive tape main body 4).In addition, as shown in Fig. 3 (C), easily peelable glue It can also be made with 20 and the structure of epidermis 5 is set in the two sides i.e. surface side of adhesive tape main body 4 and the inside side both sides to implement.Fig. 3 (C) it indicates in microwave stove heat, the state of the sealing surface stripping of the epidermis 5 of the upper surface of adhesive tape main body 4 side.However, it is possible to Be the epidermis 5 of side below adhesive tape main body 4 in microwave stove heat sealing surface stripping structure, can also be upper and lower The structure of two epidermis 5 stripping.

In the example shown in Fig. 3 (A), if upper and lower two epidermis 5 to be made to the epidermis of identical structure, in microwave When stove heat, as shown in Fig. 3 (C), in order to make the epidermis 5 of 4 top of adhesive tape main body remove, Nian Jie with the epidermis 5 is close Adhesive layer 10b is different, needs in advance to make the sealant layer 10b be bonded with the epidermis 5 that do not remove and has even if generating water The sealant layer for the peel strength that steam will not be removed.

Herein, correspondingly with needs, the above-mentioned epidermis 5 that will be removed from sealant layer 10b when generating steam is known as Epidermis 5h is removed, the above-mentioned sealant layer 10b on stripping epidermis 5h will be bonded in and be known as removing side seal glue-line The epidermis 5 that do not removed from sealant layer 10b when generating steam is known as non-peel-away epidermis 5n by 10h, will be non-peel-away with this The sealant layer 10b of epidermis 5n bondings is known as non-peel-away side seal glue-line 10n.In addition, in the case, bag webs material 10 is made By having the sheet member (hereinafter referred to as the first sheet member 14) of base material 10a and stripping side seal glue-line 10h and having base material The single sheet material portion of the difference of the sheet member (hereinafter referred to as the second sheet member 15) of 10a and non-peel-away side seal glue-line 10n The structure that part is constituted.

Moreover, the stripping side seal glue-line 10h of the first sheet member 14 is the item indicated in the explanation of Fig. 1 (D) The sealant layer of part composition, on the other hand, the non-peel-away epidermis 5n of the second sheet member 15 be made as being adjusted to from It removes under the pressurized conditions of the stripping side seal glue-line 10h strippings of epidermis 5h not from non-peel-away side seal glue-line 10n strippings The sealing condition (reducing or eliminating extension from the pressure release sealing 2 of opposite side) of peel strength or use are adjusted Raw material sealant layer.That is, as long as peel strength is by constituting the selection and sealing of the raw material of pressure release sealing 2 The adjustment both sides of situation realize.

In addition, pressure release sealing 2 be formed between the bonding part of two bag expanding sheet materials, by this two bag expandings sheet material with What kind of mode, which engages, can make various changes to implement, it may be desirable to being implemented using sealing is puted the palms together before one.

It is highly desirable shown in Fig. 5 (A) in a manner of implement because this can be easy to adjust sealing condition, favorably.

Specifically, the adjusting method as sealing condition, using the shape for sealing of putting the palms together before one, and makes the length of extension h At non-peel-away side (between the upside sheet material portion 11 of upside u1 and easily peelable adhesive tape 20) than in stripping side (the upside sheet material of downside u2 Between portion 11 and easily peelable adhesive tape 20) it is short.The length in the section sealed, in other words, (the epipleurite of upside u1 of non-peel-away side Between material portion 11 and easily peelable adhesive tape 20) form sealing g1 section length than easily peelable side (downside u2's is upper Between lateral plate material portion 11 and easily peelable adhesive tape 20) form sealing g2 section length length (in each figure of Fig. 5, be Each region indicated by dense spot of above-mentioned non-peel-away side seals g1 and easily peelable side seals g2).

At this point, if easily peelable side seals g2 is made to be located at downside (make epidermis 5 compared with easy-peel absciss layer 4 be located at downside), It then can easily realize above-mentioned construction.In particular, the one of the length to form extension h can be acted by minimum 1 sealing On this point of side and short side, is advantageous.The reason for this is that the inner end of easily peelable side seals g2 is fixed on the downside being folded in half Position is folded into shown in the T of the Fig. 5 (A) in the upside sheet material portion 11 of u2, in contrast, the inner end of non-easily peelable side seals g1, Only by changing the position of sealing plate S, its sealing station can be arbitrarily adjusted.In addition, because the upside sheet material portion of upside u1 11 compared with the upside sheet material portion 11 of downside u2 close to sealing plate S, so can also obtain (scheming because of remaining thermogenetic sealing g0 In 5 (A), by the region of light spot expression).

S0 is to indicate pedestal corresponding with sealing plate S in figure.

As comparative example on the other hand, Fig. 5 (C) can be indicated.It is indicate to make epidermis 5 and easy-peel absciss layer 4 up and down It is reverse, and make the figure for the situation that the length of extension h also overturns, in the case, it is necessary to by the side of the length of extension h and short Side individually formed by sealing.Moreover, in order to form non-easily peelable side seals g1, it is necessary to so that the upside of upside u1 Sheet material portion 11 is temporarily disengaged from, without sealing (with reference to Fig. 5 (B)).Then, the upside sheet material portion 11 of upside u1 is being overlapped into original Behind the position come, easily peelable side seals g2 (side of the length of extension h) (Fig. 5 (C)) is formed.There are equipment to answer for the method It is miscellaneous, scale is big, operation is especially cumbersome, production efficiency decline, the high problem of bad incidence.

It also can locally application in order to keep the extension h of non-easily peelable side seals g1 elongated as other comparative example Remover g3 (Fig. 5 (D)) or the sheet material g4 (Fig. 5 (E)) sandwiched therebetween that will there is separation property in a manner of not sealed, but this Increase manufacturing procedure, production efficiency declines.

As described above, Fig. 5 (A) is most advantageous, but in carrying out the present invention, implement such as other figures of Fig. 5 also not Centainly cannot be.

In the case that two sides has epidermis 5 in table in easily peelable adhesive tape 20, as shown in Fig. 3 (D), it can also make and have The easily peelable adhesive tape of same above-mentioned extension h is implemented with Fig. 3 (B).

In the case of Fig. 3 (C) (D), the thickness of two epidermis 5 is made 5 μm, the composition bag webs other than the epidermis 5 Material 10, pressure release use the thickness of other layers of sealing 2 same as above-mentioned each layer of Fig. 1 (E).

But for the thickness of above layers, above-mentioned numerical value is to illustrate, and takes into account microwave stove heat if can ensure that and puts The numerical value that the above-mentioned peel strength of the two is scalded in into boiling water, then can also be changed to other numerical value to implement.

In the embodiment shown in Fig. 3 (A)~(D), for not specifically mentioned item, with Fig. 1 and shown in Fig. 2 Embodiment is same.

Fig. 3 (F)~Fig. 3 (I) indicates the other embodiment of easily peelable adhesive tape 20.

Easily peelable adhesive tape 20 shown in Fig. 3 (F) is the easily peelable adhesive tape being made of above-mentioned easy-peel absciss layer 4 and basal layer 9.

Easily peelable adhesive tape 20 shown in Fig. 3 (G) is that have easily in the surface side and the inside side (upper and lower surface) of basal layer 9 Epidermis 5 is layered on two easy-peel absciss layers 4 by peeling layer 4 in turn, and the epidermis 5 will have been made in the table of easily peelable adhesive tape 20 Easily peelable adhesive tape.

Easily peelable adhesive tape 20 shown in Fig. 3 (H) is the easily peelable adhesive tape being only made of easy-peel absciss layer 4, does not have above-mentioned Epidermis 5, basal layer 9.

Easily peelable adhesive tape 20 shown in Fig. 3 (I) is by basal layer 9, is laminated in surface side and the inside of the basal layer 9 The easily peelable adhesive tape that the easy-peel absciss layer 4 of side (upper and lower surface) is constituted, does not have epidermis 5.

In each embodiment shown in Fig. 3 (E)~Fig. 3 (I), for not specifically mentioned item, with Fig. 1, Fig. 2 or Embodiment is same shown in person Fig. 3 (A)~(D).

For pressure release sealing 2, Fig. 4 (A) indicates other embodiment.This pressure release seals Portion 2 has the second sealing mechanism 22 and steam orifice 8.As for steam orifice 8, due to have the first sealing mechanism 21 shown in FIG. 1 Pressure release it is same with sealing 2, so omitting the description.

(the second sealing mechanism 22)

Second sealing mechanism 22 has the flat part 6 to form flat sealing surface m and is formed the court compared with flat part 6 To the pearl portion 7 of the resin of the inner face side prominent shape outstanding of bag webs material 1.The inner face side of bag webs material 1, in this instance, refer to it is upper State the wall thickness direction of sheet member that sealing surface m is opposite and is bonded on sealing surface m.

In the pressure release sealing 2 for having the second sealing mechanism 22, as including as flat part 6, pearl portion 7 Pressure release including structure is whole with sealing 2, and it is 6~30kPa also to make compressive resistance.

But the compressive resistance compared with flat part 6 of pearl portion 7 is big.

In more detail, if for enumerating the exfoliated easy peeling resin of general agglutination, at high temperature, because with equal PE (polyethylene), the PP (polypropylene) of even composition compare, and strength reduction at high temperature is serious, so being designed to above-mentioned stripping What strength range was very difficult to.It is to take the method for only improving peel strength at stripping initial stage, as the party as this countermeasure Method, it is preferred to use have above-mentioned second sealing mechanism 22 in pearl portion 7.Above-mentioned pearl portion 7 is by being sealed with high temperature, high pressure The pearl for the resin being arranged on sealant layer 10b in sealing is swelled.If also having the median for being put into aftermentioned Fig. 4 (F) The advantages of being then easily peeled off.

The deflation of second sealing mechanism 22, the sides receiving space k above-mentioned formed when from logical steam towards steam orifice 8 is logical Near the position of receiving space k in road, i.e., as out of bag side have conduct to the position of the inflow part of the air bleed passage The pearl portion 7 of above-mentioned protuberance.

Therefore, as shown in Fig. 4 (A), the pearl portion 7 as protrusion is configured in receiving space k compared with above-mentioned flat part 6 The part of side.In this way, the intermediate region of i.e. 8 side of steam orifice on the outside of bag could be made without the above-mentioned flat of pearl portion 7 compared with pearl portion 7 Portion 6.

The peel strength in the pearl portion 7 at stripping initial stage is 1.3~3.0 times of the peel strength of flat part 6.

It is concretely demonstrated, as shown in Fig. 4 (A), in the case, the character also by sealant layer 10b is mutually different The first sheet member 14 and the second sheet member 15 constitute bag webs material 10.The first sheet member 14 positioned at the top in pearl portion 7 Above-mentioned sealant layer 10b as stripping side seal glue-line 10b, be directly bonded in the second sheet material positioned at the lower section in pearl portion 7 The above-mentioned flat part 6 that non-peel-away side seal glue-line 10b, that is, sealant layer 10b of component 15 has.Non-peel-away side seal glue-line 10b It is the part functioned in the same manner as the adhesive tape main body 4 of easily peelable adhesive tape 20 above-mentioned, it is swollen because of microwave stove heat in pouch When swollen, as shown in Fig. 4 (C), becoming following structure, that is, pearl portion 7 is removed from the above-mentioned stripping side seal glue-line 10b of top, Then non-peel-away side seal glue-line 10b is removed from stripping side seal glue-line 10b, the sealing intensity of non-peel-away side seal glue-line 10b It reduces, steam can be led to.That is, the sealing intensity by non-peel-away side seal glue-line 10b reduces, air bleed passage above-mentioned is formed. Can with example shown in Fig. 4 (C) on the contrary, using positioned at the sealant layer 10b of the lower section in pearl portion 7 as the stripping removed from pearl portion 7 From side seal glue-line 10b, using positioned at the sealant layer 10b of the top in pearl portion 7 as the non-peel-away side seal that do not removed from pearl portion 7 Glue-line 10b is implemented.

(manufacturing method of the second sealing mechanism 22)

The forming method in the pearl portion 7 of Fig. 4 (A) is illustrated.As shown in Fig. 4 (B), pearl portion 7 can be by that will make epipleurite The two-part sealant layer 10b that the part in material portion 11 is overlappingly in direct contact with another part is by seal bar s from top It heats and is allowed to melt to be formed in the sides base material 10a.

But it is also possible to the lower side by seal bar s from Fig. 4 (B) is made, the base material in the second sheet material portion 15 from below The sides 10a are heated, and the sealant layer 10b fusings of lower section in figure are formed to the structure in pearl portion 7.In addition, can also make upper and lower two The sealant layer 10b of side is dissolved by heating and is formed the structure in pearl portion 7 to implement.

From upper and lower either side heating bag sheet material, as long as and across bag webs material opposite with seal bar s The bearing part (not shown) with bag webs face pair is arranged in side.As long as because by above-mentioned bearing part together with seal bar s Above-mentioned heating is carried out by seal bar s across bag webs material.

In this manufacturing method, for not specifically mentioned item, the manufacture with the first sealing mechanism 21 shown in Fig. 2 Method is same.

(passage of the peel strength of the second sealing mechanism 22)

For having the embodiment of Fig. 4 (A) of the second sealing mechanism 22, Fig. 4 (F) indicates pressure when heating boosting The passage of the peel strength of power release sealing 2.The longitudinal axis of Fig. 4 (F) indicates that peel strength, horizontal axis indicate the time.

There is stripping by force as initial value in the part that the circle of the single dotted broken line of the curve graph of thus Fig. 4 (F) surrounds The peak of degree, hereafter, as shown in the median of the circle encirclement by dotted line, peel strength reduces, and steadily elapses.It therefore, can handle Hold following situation, that is, in the second sealing mechanism 22 for having pearl portion 7, the big stripping at pressurization initial stage can be ensured by pearl portion 7 Intensity can be ensured the structure stablized with certain peel strength by flat part 6.

(modification for having the pressure release sealing 2 of the second sealing mechanism 22)

Other embodiments to having the pressure release of the second sealing mechanism 22 sealing 2 illustrate.

As shown in Fig. 4 (D), embodiment is same shown in above-mentioned second sealing mechanism 22 and Fig. 1 (D), Fig. 3 (B)~(E) Sample can be made and have the structure of the easily peelable adhesive tape 20 seperated with bag webs material 10 to implement.That is, this modification is to be provided with together The structure of first sealing mechanism 21 and the second sealing mechanism 22.But this easily peelable adhesive tape 20 only by Fig. 1 (D), Fig. 3 (B)~ (D) adhesive tape main body 4 shown in embodiment shown in is constituted.That is, in the example shown in Fig. 4 (D), easily peelable adhesive tape 20 is not Has epidermis 5.Easily peelable adhesive tape 20 be above-mentioned adhesive tape main body 4 surface constitute flat surface 6, in turn, adhesive tape main body 4 with Pearl portion 7 is provided on the surface of flat part 6 together.In addition, as shown in Fig. 4 (E), can also make on the surface of easily peelable adhesive tape 20 Second sealing mechanism in flat part 6 and pearl portion 7 is set with the inside both sides to implement.

Although not shown, but in the structure shown in Fig. 4 (D) (E), easily peelable adhesive tape 20, which can also be made, to be had to receiving space The easily peelable adhesive tape of the sides k extension h outstanding is implemented.

In addition, can also make following structure to implement, that is, not only in heating pouch 1 close to above-mentioned receiving space k Position configuration pearl portion 7, and across the pearl portion 7, in opposite side, that is, pressure release sealing 2 of above-mentioned receiving space k The front end sides 2a also configure pearl portion 7.

Although not shown, but pressure release sealing 2 can also make that have the first sealing mechanism 21 and second close The structure of 22 both sides of sealing mechanism is implemented.That is, for easily peelable adhesive tape 20, following structure can be made, that is, in adhesive tape main body Above-mentioned epidermis 5 is set on 4 surface and the inside, and makes pearl portion 7 from two epidermis 5 of sealing surface m are provided towards bag webs material 10 i.e. upside sheet material portion 11 protrudes and bites in the wall thickness in upside sheet material portion 11.

In each embodiment for having the second above-mentioned sealing mechanism 22, for not specifically mentioned item, also with The embodiment for having the first sealing mechanism 21 shown in Fig. 1, Fig. 2, Fig. 3 (A)~(D) is same, omits the description.

(summary)

In the second sealing mechanism 22 for having pearl portion 7, stable intensity, needs to carry out each condition tune in order to obtain It is whole.The first sealing mechanism 21 for having epidermis 5 be when internal pressure rises because of microwave stove heat by by the internal pressure by epidermis Layer 5 tears up and is formed the structure of deflation access, has the first sealing mechanism 21 of epidermis 5, even if not making sealing intensity big Width is uneven, also can purpose easy to implement compressive resistance, therefore, in terms of stability, the first sealing mechanism 21 to the second is close Sealing mechanism 22 is excellent.In addition, the design of epidermis 5 is also easy, also it is associated with the stability of quality.

As previously mentioned, when internal pressure rises because of microwave stove heat, by tearing up epidermis 5, air bleed passage is formed.

Embodiment

(as pressure release with sealing 2 using the embodiment of the first sealing mechanism 21)

Table 1 indicates the Examples 1 to 4 and comparative example 1~3 using the first sealing mechanism 21.

As shown in Fig. 2 (E), for this heating pouch 1, left and right width, that is, width t1 is 180mm, and front and rear width is i.e. vertical Wide t2 is 150mm, pressure release sealing with the left side width t3 between 2 cardinal extremity of sealing for 150mm, left end and pressure release Right side width t4 between 2 cardinal extremity of portion and right end is 30mm, and the front and rear width t5 of preceding joint portion 3a is 10mm, rear joint portion 3b's Front and rear width t6 is 10mm.Right junction portion 3c is folded into, and forms bottom.It is to front end from pressure release with the cardinal extremity of sealing 2 Protrusion width t8 only is 10mm.

After being put into content from the position of left junction portion 3d, left junction portion 3d is formed.

The width t7 of left junction portion 3d is 10mm.

1) it is inserted into the making of adhesive tape (easily peelable adhesive tape 20)

It makes and uses ironed by basal layer 9, easy-peel absciss layer 4 and 5 three layers of co-extrusion constituted of epidermis shown in Fig. 3 (E) Film.Easy-peel absciss layer 4 is adjusted to 10 μm, and epidermis 5 is adjusted to 0,5,15,30,40,50 μm of each thickness.In addition, overall thickness is only table 50 μm of cortex is 110 μm, other structures for being 70 μm, becomes such thickness by the adjustment of basal layer 9.

The graceful polymer SP3530 of the materials'use Puri of basal layer 9 and epidermis 5 (931kg/ cubic metres of L-LDPE, density, Stretching yield stress 13MPa).For easy-peel absciss layer 4, by the ノ バ テ ッ Network of Japanese Japan Polyethylene Corp. (NOVATEC) the タ フ マ ー (TAFMAR) of LD LF443 (LDPE, low density polyethylene (LDPE)) and Mitsui Chemicals, Inc BL3110M (polybutene) is respectively combined making 80/20 (%).

2) making of snellen test (heating pouch 1)

Being laminated by dry lamination method and used ONy15 μm (You Niji can ON-RT) and L-LDPE50 μm, (L- spins in Japan 6101).The bag for making 150 × 180mm (size is with reference to attached sheet), is clipped in steam oral area by each insertion adhesive tape and is sealed.Sealing Implement under conditions of seal temperature is 160 degree Celsius, Sealing period 1 second, sealed pressure 0.2MPa, sealing number are secondary.

3) test method

3-1-1) in the compressive resistance of 100° centigrade

Using the bursting strength test of JIS Z0238 containers as standard, it is sealed, is being kept to snellen test filling air In the air bath of 100° centigrade, air is sent into snellen test with the amount of 1.0L/min, measures pressure when obstructed steam broken bag Power, as compressive resistance.

3-1-2) in the sealing intensity of 100° centigrade

It is tested as standard with JIS Z0238 heat-seal strengths, steam oral area is cut into 15mm width, it is Celsius being maintained at In 100 degree of air bath, under conditions of tensile speed 300mm/min, peel angle 180 degree, sealing intensity (peak value is determined And median).

3-2) micro-wave oven leads to steam test

150g water is filled and packs, for experiment.By the microwave stove heat 3 minutes of 600W, it is confirmed whether normally to lead to steaming Gas.

3-3) boiling sterilization adaptability

Filling 150g water is packed for experiment.Test body is immersed in boiling sterilization tank (95 degree Celsius of hot water temperature, water Deep 60cm) in 1 hour, confirm whether there is or not broken bags.

It 3-4) puts boiling water into and scalds adaptability

Test body is put into pan with two lugs (diameter 24cm, capacity 4.5L), is full of hot water, 30 are carried out when maintaining the while of boiling The heating of minute confirms that whether there is or not broken bags.

(about test result)

As shown in table 1, Examples 1 to 4, it is 5~40 μm to make the thickness of epidermis 5, makes the compressive resistance in 100° centigrade For 8.6~28.2kPa, makes in the peak value of the sealing intensity of 100° centigrade to be 1.62~17.1N/15mm, make in 100° centigrade Sealing intensity median be 0.77~6.1N/15mm, make initial stage peak value/median be 1.99~2.8.

For this Examples 1 to 4, be micro-wave oven lead to that vapor permeability, boiling sterilization is appropriate automatically and put into boiling water scald it is suitable When the embodiment that there is no problem.That is, in Examples 1 to 4, micro-wave oven leads to vapor permeability, boiling sterilization suitably and puts into automatically Scalded in boiling water does not suitably have broken bag as in table 1 as shown in zero.

In addition, for embodiment 4, the heating that can also be used as the present invention is used with pouch, but than other embodiments Difference (therefore, is used as zero -) in table 1, and heating pouch of other embodiments compared with Example 4 as the present invention is suitable.

Relative to above-described embodiment 1~4, comparative example 1 does not have epidermis 5, makes the compressive resistance in 100° centigrade be 4.8kPa makes in the peak value of the sealing intensity of 100° centigrade to be 0.82N/15mm, make in the sealing intensity of 100° centigrade Between value be 0.75N/15mm, make initial stage peak value/median be 1.09.Comparative example 2 makes the thickness of epidermis 5 be 2 μm, makes Celsius 100 degree of compressive resistance is 5.3kPa, makes in the peak value of the sealing intensity of 100° centigrade to be 1.12N/15mm, make Celsius 100 The median of the sealing intensity of degree is 0.78N/15mm, and it is 1.44 to make initial stage peak value/median.

As shown in table 1, in above-mentioned comparative example 1 and comparative example 2, although can recognize that micro-wave oven leads to vapor permeability (table 1 automatically In for zero), still, boiling sterilization is suitably and to put boiling water into and scald appropriate both sides be result as broken bag (in table 1 for ×).This Broken bag in comparative example 1 and comparative example 2 is because sealing intensity is weak, in the easy-peel absciss layer 4 of pressure release sealing 2 Middle generation.

In addition, comparative example 3 makes the thickness of epidermis 5 be 50 μm, makes in the compressive resistance of 100° centigrade to be 40.6kPa, make It is 36.7N/15mm in the peak value of the sealing intensity of 100° centigrade.

As shown in table 1, in above-mentioned comparative example 3, although boiling water is sterilized suitably and put into boiling, boiling hot appropriate both sides do not have It is problematic, still, lead to automatically about micro-wave oven vapor permeability, then generates broken bag, be ×.

The broken bag of comparative example 3 is generated after sheet member 14 is stretched because of internal pressure.This cannot be easily peeled off in easy-peel absciss layer 4 Situation under also include in general each sealing 3a~3d and the first sheet member 14 and the second sheet member 15 depend on Intensity in them it is most weak the case where being partially destroyed.

About the details of test result shown in table 1, the evaluation of embodiment 5 shown in table 2 is summarized, as implementation The evaluation result of example is described below.

In addition, as described above, sealing intensity about table 1, according to JIS Z 0238：1998 (heat seal soft packaging bag and The test method of semi rigid receptacle) 7. bags of heat-seal strength experiment carry out, to whether there is or not broken bags, according to JIS Z 0238： The bursting strength test of 1998 8. containers carries out.In addition, the school of the load in being tested about above-mentioned 7. bags of heat-seal strength Just, with (the test methods-the second of paper and paperboard-tensile properties of JIS P 8113：Constant speed upholds method) it is standard.

[table 1]

(as pressure release with sealing 2 using the embodiment of the second sealing mechanism 22)

Table 2 indicates the test result of embodiment 5.Embodiment 5 is to use the second sealing mechanism 22, has the Fig. 4 in pearl portion 7 (A) embodiment of type shown in.Therefore, embodiment 5 is different from the Examples 1 to 4 of table 1, does not have epidermis 5.In 2 institute of table In the embodiment 5 shown, with regard to each test method(s), snellen test preparation method for, and it is same shown in table 1, heat up the ruler with pouch 1 It is also same as the dimensional structure illustrated to Fig. 2 (E) for very little structure.

As shown in table 2, embodiment 5 makes the size in pearl portion 7 i.e. from the prominent width outstanding of flat part 6 as sealing surface m It is 13 μm, makes in the compressive resistance of 100° centigrade to be 8.7kPa, it is 1.67N/ to make the peak value in the sealing intensity of 100° centigrade 15mm makes in the median of the sealing intensity of 100° centigrade to be 0.82N/15mm, and it is 2.04 to make initial stage peak value/median.

For the test result of embodiment 5, as shown in table 2, micro-wave oven lead to automatically vapor permeability, boiling sterilization it is appropriate and It puts boiling water into scald in any one experiment appropriate, also without broken bag.

[table 2]

Project	Unit	Embodiment 5
			Skin layer thickness	μm	0
Pearl size	μm	13
			In 100 DEG C of compressive resistance	kPa	8.7
At 100 DEG C of sealing intensities (peak value)	N/15mm	1.67
			In 100 DEG C of sealing intensities (median)	N/15mm	0.82
Peak value/median		2.04
			Micro-wave oven leads to vapor permeability automatically		○
Boiling sterilization adaptability		○
			It puts boiling water into and scalds adaptability		○

(evaluation results of Examples and Comparative Examples)

In the following, the evaluation of the test result in Examples and Comparative Examples shown in above-mentioned table 1 and table 2 is summarized.

(1) in 100 DEG C of compressive resistance

1) about embodiment 1,2,3,5

After snellen test is in spherically to heave to maximum limit because of the feeding of air, after 3 seconds, the stripping of easily openable sealing From steam is normally led in the leakage of crack-free sound, content (water).After the end of the test, it is thus identified that easily openable seals Portion, as a result, destroyed in 1,2,3 mesocuticle layer 5 of embodiment, in embodiment 5, sealant layer 10b of the pearl portion 7 from sealing Stripping, the agglutination stripping of easy-peel absciss layer 4.

This is normal stripping situation.It is within 3 seconds until above-mentioned stripping that snellen test is broken and time for bearing.

2) about embodiment 4

With above-mentioned (1) 1) equally, by the stripping of easy-peel absciss layer, normally lead to steam, but in being arrived after spherically heaving Time lengthening until logical steam was by 5 seconds.Pass through subsequent (2) 2) refer to the evaluation in table 1.

3) about Comparative Examples 1 and 2

With above-mentioned (1) 1) equally, normally lead to steam.

4) about comparative example 3

After snellen test is in spherically to heave to maximum limit because of the feeding of air, also obstructed steam, after 8~15 seconds, Snellen test is ruptured with big sound, and water has leaked.It is that bag host film is drawn if validation test bag after the end of the test The central portion adipping of the state stretched, bag upper membrane splits greatly.In addition, release performance sealing is not removed.

(2) micro-wave oven leads to vapor permeability automatically

1) about embodiment 1,2,3,5

Boiling water in snellen test, and in spherically heaving to maximum limit, after 2 seconds, the stripping of easily openable sealing, There is no the leakage of breaching sound, content (water), normally leads to steam.After the end of the test, it is thus identified that easily openable sealing, As a result, in embodiment 1,2,3, epidermis 5 destroys, in embodiment 5, sealant layer 10b stripping of the pearl portion 7 from sealing From easy-peel absciss layer 4 is the normal stripping situation of agglutination stripping.

2) about embodiment 4

With above-mentioned (2) 1) equally, normally lead to steam, but after in spherically heaving, time until leading to steam It extends to 5 seconds.Therefore, as described above, as the embodiment more slightly worse than other embodiments, lead to automatically in the micro-wave oven of table 1 and steam Zero-(zero is negative) is evaluated as in gas column.

3) about Comparative Examples 1 and 2

With above-mentioned (2) 1) equally, normally lead to steam.

4) about comparative example 3

In snellen test in after spherically heaving to maximum limit, also obstructed steam, after 8~10 seconds, snellen test is with big Sound and rupture, water has leaked.It is the state that bag host film has been stretched, bag if validation test bag after the end of the test The central portion adipping of upper membrane splits greatly.In addition, release performance sealing is not removed.

(3) boiling, which sterilizes adaptability and puts boiling water into, scalds adaptability

1) about embodiment 1,2,3,4,5

After experiment, snellen test taking-up is confirmed, as a result, without broken bag, is leaked without content (water), It does not find to remove in easily openable sealing, other sealings.

2) about Comparative Examples 1 and 2

After experiment, snellen test taking-up is confirmed, as a result, broken bag.Easily openable sealing is removed, content Object (water) leakage loses.

4) about comparative example 3

With above-mentioned (3) 1) equally, without broken bag.

(conclusion)

The pressure release sealing 2 of the first sealing mechanism 21 about the condition for having illustration, boiling sterilization it is appropriate, It puts boiling water into scald in viewpoint appropriate, according to the comparative example 2 of table 1, Examples 1 to 4 and comparative example 3, preferably makes epidermis 5 Thickness is 3~48 μm, and in particular according to comparative example 2 and Examples 1 to 3, it is 4~40 μm preferably to make the thickness of epidermis 5, especially It is that the thickness of epidermis 5 is preferably made to be 5~40 μm according to Examples 1 to 3, wherein preferably 5~30 μm.

Moreover, above-mentioned boiling sterilization it is appropriate, put into when boiling water scalds in viewpoint appropriate plus in microwave stove heat Logical vapor permeability viewpoint, reaches following conclusions.

That is, making the compressive resistance in 100° centigrade, according to the comparative example 2 of table 1, Examples 1 to 4 and comparative example 3, preferably For 6~40kPa, in particular according to comparative example 2 and Examples 1 to 4, preferably 7~28.2kPa, especially in accordance with embodiment 1~ 3, preferably 8.6~9kPa.

In addition, making the peak value in the sealing intensity of 100° centigrade, according to the comparative example 2 of table 1, Examples 1 to 4 and compare Example 3, preferably 1.3~35N/15mm, in particular according to comparative example 2 and Examples 1 to 4, preferably 1.3~20N/15mm, especially It is preferably 1.5~17.1N/15mm, wherein according to Examples 1 to 3, preferably 1.62~16.4N/15mm.

In turn, make the peak value/median calculated by the peak and median of the sealing intensity in 100° centigrade of table 1, according to Comparative example 2 and Examples 1 to 4, preferably 1.3~3, are particularly preferably 1.5~2.8, excellent especially in accordance with Examples 1 to 3 It is selected as 1.99~2.1.

As described above, by being used as the whole each numberical range using above-mentioned table 1 of pressure release sealing 2, can provide It is a kind of to take into account micro-wave oven and the heating pouch put boiling water into and scald the two including boiling heating.

According to table 2, following situation can be held, that is, whole with sealing 2 as pressure release by the way that pearl portion 7 is arranged Energy uses the numerical value in the range of each sealing intensity of table 1, ratio, and about boiling, sterilization is appropriate, it is boiling hot appropriate, micro- to put boiling water into Vapor permeability there is no problem for logical in wave stove heat.

The explanation of symbol

1：Heating pouch；2：Pressure release sealing；2a：(pressure release sealing 2) front end；3a：Front end Side (preceding joint portion)；3b：Back end edge (rear joint portion)；3c：Right end side (right junction portion)；3d：Left end side (left junction portion)；3e： While manufacturing (pouch) horizontal sealing；4：Adhesive tape main body (easy-peel absciss layer)；5：Epidermis；5a：(epidermis 5) slight crack；5h：Stripping Side epidermis；5n：Non-peel-away side epidermis；6：Flat part；7：Pearl portion；8：Steam orifice；9：Basal layer；10：Bag webs material；10a：Base Material；10b：Sealant layer；10h：Remove side seal glue-line；10n：Non-peel-away side seal glue-line；11：Upside sheet material portion；12：Downside Sheet material portion；13：(plastic film 10 when pouch manufactures) folding line；13a：(plastic film 10 when pouch manufactures) ear； 16：(bottom of triangle that the plastic film 10 when pouch manufactures is presented or so) invagination part；14：First sheet member；15：The Two sheet members；20：Easily peelable adhesive tape；21：First sealing mechanism；22：Second sealing mechanism；d：Dance roller；f：Food； h：Extension；J：Steam；k：Receiving space；m：Sealing surface；s：Seal bar；s0：Pedestal；v：(plastics when pouch manufactures are thin Film 10) left end side；w：(plastic film 10 when pouch manufactures) right end side；z1：(manufacturing line) upstream；z2：(system Make production line) downstream.

Claims (8)

1. a kind of heating pouch, which is characterized in that

The heating uses the bag webs material of pouch to have the sealing of release performance as pressure release sealing,

Aforementioned pressure release is another part of a part and first-mentioned sheet for the sheet material that will constitute aforementioned bag webs material with sealing The part being overlappingly bonded, aforementioned pressure release with sealing be when internal pressure rises remove and formed will be in aforementioned bag webs material The part of the deflation access of the outside coupling of portion and aforementioned bag webs material,

Aforementioned pressure release sealing has easy-peel absciss layer and epidermis, and aforementioned epidermis is the resin layer for constituting sealing surface, The sealing surface covers at least aforementioned either side of an aforementioned part for sheet material and aforementioned another part, relative to being uncovered Another party bonding,

Aforementioned epidermis 100° centigrade sealing intensity than easily peelable floor height.

2. a kind of heating pouch, which is characterized in that

The heating uses the bag webs material of pouch to have the sealing of release performance as pressure release sealing,

Aforementioned pressure release is another part of a part and first-mentioned sheet for the sheet material that will constitute aforementioned bag webs material with sealing The part being overlappingly bonded, aforementioned pressure release with sealing be when internal pressure rises remove and formed will be in aforementioned bag webs material The part of the deflation access of the outside coupling of portion and aforementioned bag webs material,

Aforementioned pressure release sealing has flat part and pearl portion, which constitutes flat sealing surface, and the pearl portion is by shape As compared with aforementioned flat part towards the inner face side prominent shape outstanding of aforementioned bag webs material.

3. heating pouch as claimed in claim 1 or 2, which is characterized in that the heating with pouch be double as by micro-wave oven into Capable heating and the pouch used by putting the boiling hot heating carried out of boiling water into.

4. a kind of heating pouch, which is characterized in that

The heating uses the bag webs material of pouch to have the sealing of release performance as pressure release sealing,

Aforementioned pressure release is another part of a part and first-mentioned sheet for the sheet material that will constitute aforementioned bag webs material with sealing The part being overlappingly bonded, aforementioned pressure release with sealing be when internal pressure rises remove and formed will be in aforementioned bag webs material The part of the deflation access of the outside coupling of portion and aforementioned bag webs material, aforementioned pressure release with sealing are made Celsius 100 The compressive resistance of degree is the part of 6~30kPa,

The heating is the pouch that the heating carried out with micro-wave oven can be scalded by putting boiling water into, aforementioned pressure release sealing with pouch Portion has the sealing mechanism of at least any one party of the first sealing mechanism and the second sealing mechanism,

Aforementioned first sealing mechanism has easy-peel absciss layer and epidermis, and aforementioned epidermis is the resin layer for constituting sealing surface, this is close Cover covers at least aforementioned either side of an aforementioned part for sheet material and aforementioned another part, another relative to what is be uncovered One side is bonded,

Aforementioned second sealing mechanism has flat part and pearl portion, which constitutes flat sealing surface, which is formed Towards the inner face side prominent shape outstanding of aforementioned bag webs material, aforementioned pearl portion it is that compressive resistance is more flat than aforementioned compared with aforementioned flat part The big part in portion.

5. heating pouch according to any one of claims 1 to 4, which is characterized in that aforementioned pressure release seals Portion is the part for having easily peelable adhesive tape, and aforementioned easily peelable adhesive tape is easily peeled off in the high temperature higher than room temperature than at room temperature.

6. heating pouch according to any one of claims 1 to 4, which is characterized in that constituting aforementioned bag webs material At least any one party of another part of a part for sheet material and the sheet material of the aforementioned bag webs material of composition has easy-peel absciss layer.

7. heating pouch as claimed in claim 6, which is characterized in that aforementioned pressure release sealing is not to have to have The part of the adhesive tape of aforementioned easy-peel absciss layer, the sheet material itself for constituting aforementioned bag webs material have aforementioned easy-peel absciss layer.

8. the heating pouch as described in claim 1 or 3, which is characterized in that it is 3~40 μm to make the thickness of aforementioned epidermis.