TW202327945A - Zipper tape container - Google Patents

Zipper tape container Download PDF

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Publication number
TW202327945A
TW202327945A TW111144149A TW111144149A TW202327945A TW 202327945 A TW202327945 A TW 202327945A TW 111144149 A TW111144149 A TW 111144149A TW 111144149 A TW111144149 A TW 111144149A TW 202327945 A TW202327945 A TW 202327945A
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Taiwan
Prior art keywords
base
storage space
zipper belt
container
mentioned
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TW111144149A
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Chinese (zh)
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北島誠之
伊藤俊一
小川拓人
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日商出光統一科技股份有限公司
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Publication of TW202327945A publication Critical patent/TW202327945A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Bag Frames (AREA)
  • Package Specialized In Special Use (AREA)

Abstract

Provided is a zipper tape container that comprises: a container body that has a storage space formed between a first surface and a second surface that are opposite each other; and a zipper tape that includes a first base part that is joined to the first surface, a first engagement part that protrudes from the first base part, a second base part that is joined to the second surface, and a second engagement part that protrudes from the second base part and can engage the first engagement part. A junction region between the second base part and the second surface includes: a first junction region in which a portion of the second base part that is not a low-joining-strength layer is joined to the second surface; and a second junction region in which only the low-joining-strength layer of the second base part is joined to the second surface. The shortest distance to the first junction region from the center of the storage space is equal to or greater than the shortest distance to the second junction region from the center of the storage space.

Description

附有夾鏈帶之容器Container with zipper strap

本發明係關於一種附有夾鏈帶之容器。The invention relates to a container with a zipper belt.

先前，收納食品等且可加熱處理之袋狀容器被廣泛利用。於文獻1(日本專利特開2013-46644號公報)中，作為此種袋狀容器，記載一種設置有防止加熱處理時過度膨脹且破裂之水蒸氣排出機構之構成。文獻1所記載之袋狀容器具有：水蒸氣排出機構，其以閉塞以圓形設置於袋本體之側封部附近之缺口之方式，形成周緣被弱化密封於袋本體之弱化密封部。該水蒸氣排出機構若因加熱處理時產生之水蒸氣使內壓提高某種程度，則弱化密封部剝離，自缺口釋放水蒸氣，藉此防止袋本體過度膨脹並破裂。Conventionally, heat-treatable bag-shaped containers for storing food and the like have been widely used. Document 1 (Japanese Unexamined Patent Application Publication No. 2013-46644 ) describes, as such a bag-shaped container, a configuration provided with a water vapor discharge mechanism for preventing excessive expansion and rupture during heat treatment. The bag-shaped container described in Document 1 has: a water vapor discharge mechanism, which forms a weakened seal portion whose peripheral edge is weakened and sealed to the bag body by closing the notch arranged circularly near the side seal portion of the bag body. If the water vapor discharge mechanism increases the internal pressure to some extent due to the water vapor generated during heat treatment, the weakened seal will be peeled off, and water vapor will be released from the gap, thereby preventing the bag body from excessive expansion and rupture.

然而，如文獻1所記載般於水蒸氣排出機構使用弱化密封部之情形時，因弱化密封部之接合強度，水蒸氣開始釋放使內壓變動。又，若弱化密封部之接合強度並非均一，則因僅剝離弱化密封部之一部分，故有水蒸氣之釋放量變少之可能性。因此，於文獻2(國際公開第2017／119449號)中，記載有一種技術：於接合於構成袋本體之薄膜之夾鏈帶之一部分設置低接合強度層，於夾鏈帶之長邊方向之一部分將低接合強度層與薄膜之間接合，於其以外之部分，將非低接合強度層之部分與薄膜之間接合，藉此容易形成可穩定釋放水蒸氣之蒸氣出口。於文獻3(日本專利特開2021-024602號公報)中，記載有一種使此種蒸氣出口於相對於夾鏈帶之長邊方向中心偏心配置之區間形成之技術。However, when a weakened seal is used in the water vapor discharge mechanism as described in Document 1, since the joint strength of the weakened seal is weakened, water vapor starts to be released and the internal pressure fluctuates. Also, if the bonding strength of the weakened seal portion is not uniform, only a part of the weakened seal portion will be peeled off, so the release amount of water vapor may decrease. Therefore, in Document 2 (International Publication No. 2017/119449), there is a technique described in which a low bonding strength layer is provided on a part of the zipper belt joined to the film constituting the bag body, and a layer of low bonding strength is provided in the longitudinal direction of the zipper belt. Part of the low bonding strength layer is bonded to the film, and the other part is bonded to a part other than the low bonding strength layer and the film, thereby easily forming a vapor outlet capable of stably releasing water vapor. Document 3 (Japanese Patent Application Laid-Open No. 2021-024602 ) describes a technique in which such a steam outlet is formed in an area eccentrically arranged with respect to the longitudinal center of the zipper belt.

然而，如文獻2記載，於加熱處理用之袋狀容器安裝夾鏈帶之情形時，有因加熱處理中之容器內之蒸氣壓，對夾鏈帶之異形剖面部施加較大之力之情形。若因該力而於形成蒸氣出口前使夾鏈帶之嵌合脫落，則因加熱處理結束後蒸氣壓降低時夾鏈帶已打開，有令使用者之安心感受損之可能性。又，於文獻3中，雖已解決因使蒸氣出口偏心而打開夾鏈帶之問題，但有如圖12之照片所示般因容器之彎曲而無法穩定釋放蒸氣之可能性。However, as described in Document 2, when a zipper belt is installed on a pouch-shaped container for heat treatment, a large force may be applied to the profiled section of the zipper belt due to the vapor pressure in the container during heat treatment. . If the fitting of the zipper tape falls off before the steam outlet is formed due to this force, the zipper tape will be opened when the steam pressure decreases after the heat treatment, which may damage the sense of security of the user. Also, in Document 3, although the problem of opening the zipper belt due to the eccentricity of the steam outlet has been solved, there is a possibility that the steam cannot be released stably due to the bending of the container as shown in the photo of FIG. 12 .

因此，本發明之目的在於提供一種於加熱內容物時可形成蒸氣出口之容器中，可穩定釋放蒸氣之附有夾鏈帶之容器。Therefore, the purpose of the present invention is to provide a container with a zipper belt that can stably release steam in a container that can form a steam outlet when the content is heated.

[1]一種附有夾鏈帶之容器，其具備：容器本體，其至少具有相互對向之第1面及第2面，於上述第1面及上述第2面之間形成收納空間；及夾鏈帶，其包含：第1基部，其配置於上述第1面與上述第2面之間，劃定上述收納空間之一邊，與上述第1面接合；第1扣合部，其自上述第1基部突出；第2基部，其與上述第2面接合；及第2扣合部，其自上述第2基部突出並可與上述第1扣合部扣合；且於面向上述第2面之上述第2基部之一部分形成以與上述容器本體之接合強度低於上述夾鏈帶之其他部分之方式構成之低接合強度層；上述第2基部與上述第2面之間之接合區域包含：第1接合區域，其將上述第2基部於上述低接合強度層以外之部分接合於上述第2面；及第2接合區域，其將上述第2基部僅於上述低接合強度層接合於上述第2面；且上述收納空間之中心至上述第1接合區域之最短距離為上述收納空間之中心至上述第2接合區域之最短距離以上。[2]如[1]記載之附有夾鏈帶之容器，其中於上述夾鏈帶之寬度方向上，上述低接合強度層形成於上述第2基部之上述第2扣合部之根部與位於上述收納空間之相反側之端部之間之中間部分，上述第1接合區域相對於上述低接合強度層形成於上述收納空間之相反側，上述第2接合區域藉由使上述接合區域伸出至上述收納空間側而形成。[1] A container with a zipper belt, comprising: a container body having at least a first surface and a second surface opposite to each other, and a storage space is formed between the first surface and the second surface; and The zipper belt includes: a first base part, which is arranged between the first surface and the second surface, defines one side of the storage space, and is joined to the first surface; The first base portion protrudes; the second base portion engages with the above-mentioned second surface; and the second fastening portion protrudes from the above-mentioned second base portion and can be fastened with the above-mentioned first fastening portion; A part of the above-mentioned second base part forms a low-joint-strength layer formed in such a way that the joint strength with the above-mentioned container body is lower than that of the other parts of the above-mentioned zipper belt; the joint area between the above-mentioned second base part and the above-mentioned second surface includes: A first bonding area for bonding the second base to the second surface except for the low bonding strength layer; and a second bonding area for bonding the second base to the first low bonding strength layer only 2 sides; and the shortest distance from the center of the storage space to the first joint area is greater than the shortest distance from the center of the storage space to the second joint area. [2] The container with a zipper belt according to [1], wherein the low bonding strength layer is formed at the root of the second fastening part of the second base part and at the base of the zipper belt in the width direction of the zipper belt. In the middle portion between the ends on the opposite side of the storage space, the first joint area is formed on the opposite side of the storage space to the low joint strength layer, and the second joint area is formed by protruding the joint area to The above storage space side is formed.

[3]一種附有夾鏈帶之容器，其具備：容器本體，其至少具有相互對向之第1面及第2面，於上述第1面及上述第2面之間形成收納空間；及夾鏈帶，其包含：第1基部，其配置於上述第1面與上述第2面之間，劃定上述收納空間之一邊，與上述第1面接合；第1扣合部，其自上述第1基部突出；第2基部，其與上述第2面接合；及第2扣合部，其自上述第2基部突出並可與上述第1扣合部扣合；且面向上述第2面之上述第2基部之一部分由第2樹脂組成物形成，該第2樹脂組成物與形成上述第1基部及上述第2基部之剩下之部分的第1樹脂組成物不同；上述第2基部與上述第2面之間之接合區域包含：第1接合區域，其將上述第2基部於由上述第1樹脂組成物形成之部分接合於上述第2面；及第2接合區域，其將上述第2基部僅於由上述第2樹脂組成物形成之部分接合於上述第2面；且上述收納空間之中心至上述第1接合區域之最短距離為上述收納空間之中心至上述第2接合區域之最短距離以上。[3] A container with a zipper belt, comprising: a container body having at least a first surface and a second surface opposite to each other, and a storage space is formed between the first surface and the second surface; and The zipper belt includes: a first base part, which is arranged between the first surface and the second surface, defines one side of the storage space, and is joined to the first surface; The first base portion protrudes; the second base portion engages with the second surface; and the second fastening portion protrudes from the second base portion and can be fastened with the first fastening portion; and faces the second surface A part of the second base part is formed of a second resin composition different from the first resin composition forming the first base part and the remaining part of the second base part; the second base part is the same as the above-mentioned The bonding area between the second surfaces includes: a first bonding area that bonds the portion of the second base formed of the first resin composition to the second surface; and a second bonding area that bonds the second base to the second surface. The base portion is bonded to the second surface only at the portion formed of the second resin composition; and the shortest distance from the center of the storage space to the first bonding area is the shortest distance from the center of the storage space to the second bonding area above.

[4]如[1]至[3]中任一項記載之附有夾鏈帶之容器，其中上述第2接合區域於上述夾鏈帶之長邊方向上不重複。[4] The container with a zipper belt according to any one of [1] to [3], wherein the second joining region does not overlap in the longitudinal direction of the zipper belt.

[5]如[1]至[4]中任一項記載之附有夾鏈帶之容器，其中上述第2接合區域形成於上述夾鏈帶之長邊方向之第1區間，上述夾鏈帶之長邊方向中心至上述第1區間之長邊方向之中間部之距離Y相對於上述附有夾鏈帶之容器之開口寬度之一半之長度X之比Y／X為0.15以上。[5] The container with a zipper belt according to any one of [1] to [4], wherein the second joining region is formed in the first section in the longitudinal direction of the zipper belt, and the zipper belt The ratio Y/X of the distance Y from the center of the longitudinal direction to the middle part of the first section in the longitudinal direction to the length X of half the opening width of the container with the zipper belt is 0.15 or more.

[6]如[1]至[5]中任一項記載之附有夾鏈帶之容器，其中於上述夾鏈帶之長邊方向上設置複數個上述第2接合區域。[6] The container with a zipper belt according to any one of [1] to [5], wherein a plurality of the second joining regions are provided in the longitudinal direction of the zipper belt.

[7]如[1]至[6]中任一項記載之附有夾鏈帶之容器，其中上述第2接合區域之上述第2基部與上述第2面之間之剝離強度為30 N／50 mm以下。[7] The container with a zipper tape according to any one of [1] to [6], wherein the peel strength between the second base and the second surface of the second joining region is 30 N/ 50 mm or less.

[8]如[1]至[7]中任一項記載之附有夾鏈帶之容器，其中上述第2接合區域之至少一部分位於較以上述收納空間之中心作為中心，與上述第1接合區域相接之圓之圓周更內側。[8] The container with a zipper belt according to any one of [1] to [7], wherein at least a part of the above-mentioned second joint area is located more centered on the center of the above-mentioned storage space, and is joined to the above-mentioned first joint area. The circumference of the circle where the areas meet is more inner.

[9]如[1]至[8]中任一項記載之附有夾鏈帶之容器，其中上述第2接合區域具有上述收納空間側之端緣向上述夾鏈帶之長邊方向中心側延長之形狀。[9] The container with the zipper belt according to any one of [1] to [8], wherein the second joining region has an end edge on the side of the storage space toward the center of the zipper belt in the longitudinal direction Extended shape.

[10]如[1]至[9]中任一項記載之附有夾鏈帶之容器，其中上述第2基部僅於寬度方向之較上述第2扣合部之位置更靠上述收納空間之相反側，藉由上述接合區域接合於上述第2面。[10] The container with a zipper belt according to any one of [1] to [9], wherein the second base part is closer to the storage space than the position of the second fastening part in the width direction The opposite side is bonded to the second surface via the bonding region.

[11]如[1]至[10]中任一項記載之附有夾鏈帶之容器，其中上述容器本體為袋狀。[11] The container with a zipper belt according to any one of [1] to [10], wherein the container body is in the shape of a bag.

根據上述構成，因收納空間之中心至第1接合區域之最短距離為收納空間之中心至第2接合區域之最短距離以上，故加熱內容物時施加於第1接合區域之蒸氣壓成為施加於第2接合區域之至少一部分之蒸氣壓以下。因此，於介隔第1接合區域以較強之力拉伸第2基部之前，使第2接合區域之接合破壞且形成蒸氣出口，可穩定地釋放蒸氣。According to the above configuration, since the shortest distance from the center of the storage space to the first junction area is greater than the shortest distance from the center of the storage space to the second junction area, the vapor pressure applied to the first junction area when heating the contents becomes the vapor pressure applied to the second junction area. 2 The vapor pressure of at least a part of the bonding area is lower than that. Therefore, before the second base part is pulled with a strong force through the first joint area, the joint of the second joint area is broken and the steam outlet is formed, so that the steam can be released stably.

以下，一面參照隨附圖式一面對本發明之較佳實施形態詳細地進行說明。另，於本說明書及圖式中，對於實質上具有同一功能構成之構成要件，藉由附加同一符號而省略重複之說明。Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in this specification and drawings, about the component which has substantially the same functional structure, the same code|symbol is attached|subjected, and the repeated description is abbreviate|omitted.

圖1係本發明之第1實施形態之附有夾鏈帶之袋之俯視圖。圖2A、圖2B及圖3係圖1所示之附有夾鏈帶之袋之II-II線及III-III線之剖視圖。如圖示所示，附有夾鏈帶之袋100包含；袋狀之容器本體，其藉由具有相互對向之第1面111A及第2面111B之薄膜110形成；及夾鏈帶120，其配置於薄膜110之第1面111A及第2面111B之間。夾鏈帶120如稍後所述橫跨全長將寬度方向之至少一部分接合於第1面111A及第2面111B，藉此劃定形成於薄膜110之第1面111A及第2面111B之間且收納內容物C之收納空間SP之一邊。Fig. 1 is a top view of a bag with a zipper belt according to the first embodiment of the present invention. Fig. 2A, Fig. 2B and Fig. 3 are the cross-sectional views of line II-II and line III-III of the bag with zipper belt shown in Fig. 1 . As shown in the figure, the bag 100 with a zipper belt includes; a bag-shaped container body, which is formed by a film 110 having a first surface 111A and a second surface 111B opposite to each other; and a zipper belt 120, It is disposed between the first surface 111A and the second surface 111B of the film 110 . The fastener tape 120 is formed between the first surface 111A and the second surface 111B of the film 110 by joining at least a part of the width direction across the entire length as described later to the first surface 111A and the second surface 111B. And one side of the storage space SP for storing the contents C.

薄膜110例如由單層或多層之熱塑性樹脂形成。更具體而言，薄膜110可為低密度聚乙烯(LDPE：Low Density Polyethylene)、直鏈狀低密度聚乙烯(LLDPE：Linear Low Density Polyethylene)、或聚丙烯(PP：Polypropylene)。PP亦可為均聚丙烯(HPP：Homo Polypropylene)、無規聚丙烯(RPP：Random Polypropylene)、或嵌段聚丙烯(BPP：Block Polypropylene)。於薄膜110為多層之情形時，亦可對表基材使用雙軸延伸聚丙烯(OPP：Oriented Polypropylene)、雙軸延伸聚對苯二甲酸乙二酯(OPET：Oriented Polyethylene Terephthalate)、或雙軸延伸尼龍(ONy：Oriented Nylon)。該等不限於源自化石燃料之樹脂，亦可為顧及環境之生物塑膠(源自生物之生物聚乙烯或生物聚丙烯等聚烯烴系樹脂)，又可為源自化石燃料之樹脂與生物塑膠之混合物。又，薄膜110亦可包含藉由鋁蒸鍍或鋁箔之積層等形成之無機材料之層。The film 110 is formed of single-layer or multi-layer thermoplastic resin, for example. More specifically, the film 110 may be low density polyethylene (LDPE: Low Density Polyethylene), linear low density polyethylene (LLDPE: Linear Low Density Polyethylene), or polypropylene (PP: Polypropylene). PP may also be homopolypropylene (HPP: Homo Polypropylene), random polypropylene (RPP: Random Polypropylene), or block polypropylene (BPP: Block Polypropylene). When the film 110 is multi-layered, biaxially stretched polypropylene (OPP: Oriented Polypropylene), biaxially stretched polyethylene terephthalate (OPET: Oriented Polyethylene Terephthalate), or biaxial Extended nylon (ONy: Oriented Nylon). These are not limited to resins derived from fossil fuels, but can also be bioplastics that take into account the environment (polyolefin-based resins such as bio-polyethylene or bio-polypropylene derived from organisms), and resins and bioplastics derived from fossil fuels the mixture. In addition, the thin film 110 may also include a layer of an inorganic material formed by aluminum vapor deposition or lamination of aluminum foil.

另，於本實施形態，雖藉由將2張薄膜110於底封部112及側封部113中相互接合而形成具有第1面111A及第2面111B之容器本體，但於其他實施形態中，亦可將1張薄膜110於與側封部113對應之部分反折，形成第1面111A及第2面111B。或，可於圖1之例之與底封部112或側封部113對應之部分形成薄膜向內側折入之部分，即所謂角撐板。於該情形時，角撐板可藉由薄膜110形成，亦可藉由接合於薄膜110之其他薄膜形成。又，附有夾鏈帶之袋100亦可為藉由於底部形成角撐板而可豎立放置之立袋。又，藉由附有夾鏈帶之袋100形成之收納空間SP之形狀於圖示之例中為大致正方形，但並不特別限定。例如，收納空間SP之形狀可為縱長(自開口101面向底封部112之方向之尺寸較長)，亦可為橫長(兩者之側封部113之間，即夾鏈帶120之長邊方向之尺寸較長)，較佳為橫長者。In addition, in this embodiment, although the container body having the first surface 111A and the second surface 111B is formed by bonding two films 110 to each other in the bottom seal portion 112 and the side seal portion 113, in other embodiments Alternatively, one sheet of film 110 may be folded back at the portion corresponding to the side seal portion 113 to form the first surface 111A and the second surface 111B. Alternatively, in the example shown in FIG. 1 , the portion corresponding to the bottom seal portion 112 or the side seal portion 113 can be formed with a portion where the film is folded inward, that is, a so-called gusset. In this case, the gusset can be formed by the film 110 or by other films bonded to the film 110 . Also, the bag with zipper belt 100 can also be a stand-up bag that can be placed upright by forming a gusset at the bottom. Moreover, although the shape of the storage space SP formed by the bag 100 with a fastener tape is substantially square in the example shown in figure, it is not specifically limited. For example, the shape of the storage space SP can be vertically long (the direction from the opening 101 to the bottom seal 112 is longer), or horizontally long (between the side seals 113 of the two, that is, between the zipper belt 120 The dimension in the long side direction is longer), preferably horizontally long.

又，於本實施形態中，形成底封部112及側封部113，另一方面，不形成頂封部，藉此形成附有夾鏈帶之袋100之開口101，但於其他實施形態中，亦可除底封部112及側封部113以外形成頂封部，藉由切斷頂封部與夾鏈帶120之間，事後可於附有夾鏈帶之袋100形成開口101。再者於其他實施形態中，於不形成底封部112，即收納空間SP未於夾鏈帶120之相反側密封之狀態下提供附有夾鏈帶之袋。於該情形時，底封部112於收納空間SP填充內容物之後形成。除此以外，可於周知之各種構成之附有夾鏈帶之袋應用本發明。Also, in this embodiment, the bottom seal portion 112 and the side seal portion 113 are formed. On the other hand, the top seal portion is not formed, thereby forming the opening 101 of the bag 100 with the zipper belt, but in other embodiments In addition to the bottom seal 112 and the side seal 113, the top seal can also be formed. By cutting between the top seal and the zipper belt 120, the opening 101 can be formed in the bag 100 with the zipper belt afterwards. Furthermore, in other embodiments, the bag with the zipper tape is provided in a state where the bottom seal portion 112 is not formed, that is, the storage space SP is not sealed on the opposite side of the zipper tape 120 . In this case, the bottom seal portion 112 is formed after the storage space SP is filled with contents. In addition, the present invention can be applied to bags with zipper belts of various known configurations.

夾鏈帶120為長條狀之構件，其於剖面形狀包含：第1基部121A，其接合於第1面111A；第2基部121B，其接合於第2面111B；及扣合部122A、123A及扣合部122B、123B，其等分別自第1基部121A及第2基部121B之相互對向之面突出且可相互扣合。夾鏈帶120例如由聚烯烴系樹脂形成。更具體而言，夾鏈帶120亦可以低密度聚乙烯(LDPE)、直鏈狀低密度聚乙烯(LLDPE)、或聚丙烯(PP)形成。PP可為均聚丙烯(HPP)、無規聚丙烯(RPP)、或嵌段聚丙烯(BPP)。聚烯烴系樹脂不限於源自化石燃料之樹脂，亦可為顧及環境之生物塑膠(源自生物之生物聚乙烯或生物聚丙烯等聚烯烴系樹脂)，又可為源自化石燃料之樹脂與生物塑膠之混合物。亦可視需要，於夾鏈帶120之材料，添加周知之添加劑，例如穩定劑、抗氧化劑、潤滑劑、抗靜電劑、或著色劑等。The zipper belt 120 is an elongated member, and its cross-sectional shape includes: a first base 121A, which is joined to the first surface 111A; a second base 121B, which is joined to the second surface 111B; and fastening parts 122A, 123A And the fastening parts 122B, 123B protrude from the opposing surfaces of the first base part 121A and the second base part 121B respectively, and can be fastened to each other. The zipper tape 120 is formed of, for example, polyolefin-based resin. More specifically, the zipper tape 120 may also be formed of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), or polypropylene (PP). PP can be homopolypropylene (HPP), random polypropylene (RPP), or block polypropylene (BPP). Polyolefin-based resins are not limited to resins derived from fossil fuels, but can also be bioplastics that take into account the environment (polyolefin-based resins such as bio-polyethylene or bio-polypropylene derived from organisms), and resins derived from fossil fuels and Mixture of bioplastics. If necessary, well-known additives, such as stabilizers, antioxidants, lubricants, antistatic agents, or coloring agents, can be added to the material of the zipper belt 120 .

另，針對形成於夾鏈帶120之扣合部，於圖示之例中，扣合部122A為公型，扣合部122B為母型，扣合部123A及扣合部123B為鉤型，但不限定於圖示之例，可採用組合爪狀、鉤狀、或瘤狀等之周知之各種夾鏈帶之扣合部之形狀。又，於圖示之例中雖顯示2對扣合部，但扣合部可為1對，亦可為3對以上。又，於圖示之例中雖逐對配置形狀不同之扣合部(母型及公型以及鉤型)，但亦可配置2對以上相同形狀之扣合部(例如公型及母型)。扣合部122A、123A及扣合部122B、123B可密封、開封、及再密封附有夾鏈帶之袋100。In addition, for the fastening parts formed on the zipper belt 120, in the illustrated example, the fastening part 122A is a male type, the fastening part 122B is a female type, and the fastening part 123A and the fastening part 123B are hook-shaped. However, it is not limited to the illustrated example, and the shape of the fastening portion of various well-known zipper belts such as a claw shape, a hook shape, or a knob shape can be combined. In addition, although two pairs of engaging parts are shown in the illustrated example, one pair of engaging parts may be used, or three or more pairs may be used. In addition, in the example shown in the figure, although the fastening parts (female type, male type, and hook type) of different shapes are arranged pair by pair, two or more pairs of fastening parts of the same shape (such as male type and female type) can also be arranged. . The snap parts 122A, 123A and the snap parts 122B, 123B can seal, unseal, and reseal the bag 100 with the zipper strap.

於本實施形態中，相對於扣合部122B、123B，於開口101側(與收納空間SP之相反側)，且面向第2面111B之第2基部121B之一部分形成低接合強度層124。低接合強度層124係構成為與薄膜110之接合強度低於夾鏈帶120之其他部分之層。具體而言，例如藉由由聚丙烯形成夾鏈帶120之其他部分，由聚乙烯、或聚乙烯與聚丙烯之混合物(例示LLDPE、LDPE與高密度聚乙烯(HDPE：High Density Polyethylene)之混合物、或LDPE與聚丙烯之混合物)形成低接合強度層124，而可使低接合強度層124與薄膜110之接合強度低於夾鏈帶120之其他部分與薄膜110之接合強度。In the present embodiment, the low bonding strength layer 124 is formed on a part of the second base 121B facing the second surface 111B on the side of the opening 101 (opposite to the storage space SP) with respect to the engaging portions 122B and 123B. The low bonding strength layer 124 is a layer configured so that the bonding strength with the film 110 is lower than that of other parts of the zipper tape 120 . Specifically, for example, by forming other parts of the zipper belt 120 from polypropylene, polyethylene, or a mixture of polyethylene and polypropylene (for example, a mixture of LLDPE, LDPE, and high-density polyethylene (HDPE: High Density Polyethylene) , or a mixture of LDPE and polypropylene) to form the low bonding strength layer 124, so that the bonding strength between the low bonding strength layer 124 and the film 110 is lower than that of other parts of the zipper tape 120 and the film 110.

另，於圖示之例中，低接合強度層124由與第2基部121B相同之厚度形成，但於其他例中，低接合強度層124較佳薄於第2基部121B，僅第2基部121B之第2面111B側成為低接合強度層124。於該情形時，較佳於第2基部121B與低接合強度層124之間，形成接合層。接合層由例如稍後敘述之樹脂組成物構成。或，可於由與其他部分相同之厚度形成之第2基部121B之第2面111B側積層低接合強度層124。包含低接合強度層124之夾鏈帶120藉由例如與形成低接合強度層124之樹脂材料與形成其他部分之樹脂材料一起擠出成形而製造。或，低接合強度層124可於藉由將包含第2基部121B之部分擠出成形而形成之後，藉由於第2基部121B之第2面111B側之特定區域塗佈低接合強度層124之材料樹脂而形成。又，於圖示之例中，低接合強度層124位於較扣合部更靠開口101側，但低接合強度層124亦可延伸至開口101之相反側，即收納空間SP側。In addition, in the illustrated example, the low bonding strength layer 124 is formed with the same thickness as the second base portion 121B, but in other examples, the low bonding strength layer 124 is preferably thinner than the second base portion 121B, and only the second base portion 121B The second surface 111B side becomes the low bonding strength layer 124 . In this case, it is preferable to form a bonding layer between the second base portion 121B and the low bonding strength layer 124 . The bonding layer is made of, for example, a resin composition described later. Alternatively, the low bonding strength layer 124 may be laminated on the second surface 111B side of the second base portion 121B formed to have the same thickness as other portions. The zipper tape 120 including the low joint strength layer 124 is manufactured by, for example, extrusion molding together with a resin material forming the low joint strength layer 124 and a resin material forming other parts. Alternatively, the low bonding strength layer 124 may be formed by extruding the portion including the second base 121B, and then coating the material of the low bonding strength layer 124 on a specific area on the second surface 111B side of the second base 121B. formed by resin. In addition, in the illustrated example, the low joint strength layer 124 is located closer to the opening 101 than the fastening portion, but the low joint strength layer 124 may also extend to the opposite side of the opening 101 , that is, the storage space SP side.

形成上述低接合強度層124之樹脂組成物與形成第2基部121B之樹脂組成物不同。例如，藉由表1所例示之構成，可使低接合強度層124與第2面111B之間之接合強度低於第2基部121B之其他部分與第2面111B之間之接合強度。於表1之例中，形成第2基部121B(簡單記載為基部)之樹脂組成物為聚丙烯，形成低接合強度層124之樹脂組成物為聚乙烯。於該例中，如上所述於第2基部121B與低接合強度層124之間形成接合層。The resin composition forming the low bonding strength layer 124 is different from the resin composition forming the second base portion 121B. For example, with the configurations shown in Table 1, the bonding strength between the low bonding strength layer 124 and the second surface 111B can be made lower than the bonding strength between other parts of the second base portion 121B and the second surface 111B. In the example of Table 1, the resin composition forming the second base portion 121B (simply referred to as the base portion) is polypropylene, and the resin composition forming the low bonding strength layer 124 is polyethylene. In this example, a bonding layer is formed between the second base portion 121B and the low bonding strength layer 124 as described above.

[表1] [Table 1]

或，藉由採用表2所例示之樹脂組成物之組合，亦可使低接合強度層124與第2面111B之間之接合強度低於第2基部121B之其他部分與第2面111B之間之接合強度。另，於表2中Tm意指熔點。Alternatively, by using the combinations of the resin compositions listed in Table 2, the bonding strength between the low bonding strength layer 124 and the second surface 111B can be lower than that between other parts of the second base portion 121B and the second surface 111B. the bonding strength. In addition, in Table 2, Tm means a melting point.

[表2] [Table 2]

於本實施形態中，第1基部121A於夾鏈帶120之全長接合於第1面111A。因於第1基部121A不形成低接合強度層，故將第1基部121A接合於第1面111A之區域為任意。另一方面，第2基部121B亦以夾鏈帶120之全長接合於第2面111B，但如圖1所示，藉由熱密封或超音波密封將第2基部121B與第2面111B接合之接合區域140包含第1接合區域141與第2接合區域142。於第1接合區域141，如圖3所示第2基部121B於低接合強度層124以外之部分接合於第2面111B(於低接合強度層124亦可接合)。另一方面，於第2接合區域142中，如圖2A所示第2基部121B僅於低接合強度層124接合於第2面111B。即，於第2接合區域142中，低接合強度層124與第2面111B之接合區域面向收納空間SP側及開口101側(收納空間SP之相反側)之兩者之空間。In the present embodiment, the first base portion 121A is joined to the first surface 111A over the entire length of the fastener tape 120 . Since no low bonding strength layer is formed on the first base portion 121A, the region where the first base portion 121A is bonded to the first surface 111A is optional. On the other hand, the second base 121B is also joined to the second surface 111B with the entire length of the zipper tape 120, but as shown in FIG. The bonding region 140 includes a first bonding region 141 and a second bonding region 142 . In the first bonding region 141 , as shown in FIG. 3 , the second base portion 121B is bonded to the second surface 111B at a portion other than the low bonding strength layer 124 (it can also be bonded to the low bonding strength layer 124 ). On the other hand, in the second bonding region 142 , the second base portion 121B is bonded to the second surface 111B only at the low bonding strength layer 124 as shown in FIG. 2A . That is, in the second bonding region 142 , the bonding region between the low bonding strength layer 124 and the second surface 111B faces the space between the storage space SP side and the opening 101 side (opposite side to the storage space SP).

更具體而言，於夾鏈帶120之寛度方向上，因低接合強度層124形成於第2基部121B之扣合部122B之根部與開口101側(收納空間SP之相反側)之端部之間之中間部分，故於較低接合強度層124更靠開口101側存在非低接合強度層124之區域。如圖1所示，接合區域140中第1接合區域141相對於低接合強度層124形成於收納空間SP側，第2接合區域142藉由接合區域140向開口101之相反側，即收納空間SP側伸出而形成。More specifically, in the width direction of the zipper tape 120, the low bonding strength layer 124 is formed at the root of the fastening portion 122B of the second base portion 121B and the end portion on the side of the opening 101 (opposite side to the storage space SP). Therefore, there is a non-low bonding strength layer 124 on the side of the lower bonding strength layer 124 closer to the opening 101 in the middle portion. As shown in FIG. 1 , in the bonding region 140 , the first bonding region 141 is formed on the storage space SP side relative to the low bonding strength layer 124 , and the second bonding region 142 is to the opposite side of the opening 101 through the bonding region 140 , that is, the storage space SP. formed sideways.

藉由此種構成，於藉由加熱內容物C而使收納空間SP內之蒸氣壓上升之情形時，如圖2B所示破壞薄膜110之第2面111B與第1面111A之間接合強度最低之部分，即第2基部121B僅於低接合強度層124接合於第2面111B之第2接合區域142。藉由第2接合區域142之破壞，第2基部121B與第2面111B分離，收納空間SP與外部連通藉此排出蒸氣。藉由此種構成，於本實施形態中，可形成能夠於加熱內容物時穩定釋放蒸氣之蒸氣出口。With this configuration, when the vapor pressure in the storage space SP is increased by heating the content C, the bonding strength between the second surface 111B and the first surface 111A of the destruction film 110 is the lowest as shown in FIG. 2B The second base portion 121B is only bonded to the second bonding region 142 of the second surface 111B at the low bonding strength layer 124 . The second base portion 121B is separated from the second surface 111B by the destruction of the second bonding region 142, and the storage space SP communicates with the outside to discharge steam. With such a configuration, in this embodiment, a steam outlet capable of stably releasing steam when the content is heated can be formed.

於本實施形態中，第2基部121B如圖2A、圖2B及圖3所示，藉由第1接合區域141及第2接合區域142，於所謂單側脫落之狀態下安裝於薄膜110之第2面111B。具體而言，第2基部121B僅於寬度方向之較扣合部122B、123B之位置更靠收納空間SP之相反側，藉由第1接合區域141及第2接合區域142接合於薄膜110之第2面111B。藉由此種構成，於加熱內容物時收納空間SP內之蒸氣壓增大之情形時，如圖2B中箭頭所示，沿各者之基部之寬度方向對第1基部121A及第2基部121B之間作用切斷方向之力。因該方向之力使母型之扣合部122B之一者之爪與公型之扣合部122A更強地扣合，又使鉤型之扣合部123A、123B相互更強地扣合，故不易由蒸氣壓之作用解除扣合部之形狀。又，藉此，收納空間SP內之蒸氣壓除扣合部外亦容易分散作用於第2基部121B與第2面111B之間。In this embodiment, as shown in FIG. 2A, FIG. 2B and FIG. 2 sides 111B. Specifically, the second base portion 121B is only bonded to the second base portion of the film 110 through the first bonding region 141 and the second bonding region 142 on the side opposite to the storage space SP in the width direction than the positions of the fastening portions 122B and 123B. 2 sides 111B. With this configuration, when the vapor pressure in the storage space SP increases when the content is heated, as shown by the arrow in FIG. The force in the cutting direction acts between them. Because of the force in this direction, the claw of one of the female-type fastening parts 122B is more strongly fastened with the male-type fastening part 122A, and the hook-shaped fastening parts 123A, 123B are more strongly fastened together. Therefore, it is not easy to release the shape of the fastening part by the effect of steam pressure. In addition, by this, the vapor pressure in the storage space SP can easily be distributed between the second base portion 121B and the second surface 111B in addition to the fastening portion.

圖4係用於對本發明之第1實施形態之接合區域之配置進行說明之圖。如圖示所示，於本實施形態中，收納空間SP之中心SP_C至第1接合區域141之最短距離d1為收納空間SP之中心SP_C至第2接合區域142之最短距離d2以上。此處，收納空間SP之中心SP_C例如圖示般可作為大致矩形之收納空間SP之平面形狀之對角線之交點特定。於本實施形態中，因收納空間SP藉由接合底封部112、側封部113及夾鏈帶120之第2基部121B與薄膜110之第2面111B之接合區域140包圍，故藉由如上所述自面向收納空間SP之該等接合區域之交點畫對角線而可特定中心SP_C。Fig. 4 is a diagram for explaining the arrangement of bonding regions according to the first embodiment of the present invention. As shown in the figure, in this embodiment, the shortest distance d1 from the center SP_C of the storage space SP to the first bonding region 141 is greater than or equal to the shortest distance d2 from the center SP_C of the storage space SP to the second bonding region 142 . Here, the center SP_C of the storage space SP can be specified as the intersection of the diagonals of the planar shape of the substantially rectangular storage space SP, for example as shown in figure. In this embodiment, since the storage space SP is surrounded by the joint region 140 that joins the second base 121B of the bottom seal 112, the side seal 113, and the zipper belt 120, and the second surface 111B of the film 110, the above The center SP_C can be specified by drawing a diagonal line at the intersection of the joint regions facing the storage space SP.

另，如上所述，針對夾鏈帶120之第1基部121A與薄膜110之第1面111A之間之接合區域形成為任意之形狀，但於本實施形態中，因中心SP_C與第2基部121B側之接合區域140，具體而言第1接合區域141及第2接合區域之配置關聯定義，故非第1基部121A側，而以第2基部121B側之接合區域140作為基準設定中心SP_C。又，例如亦可取代側封部113形成薄膜110之反折部，但於該情形時，藉由自反折部與底封部112及接合區域140之交點畫對角線可特定中心SP_C。又，於與底封部112或側封部113對應之部分形成薄膜向內側折入之角撐板之情形時，針對不包含折入之部分之收納空間SP之外緣之平面形狀設定中心SP_C。In addition, as described above, the junction area between the first base portion 121A of the zip fastener tape 120 and the first surface 111A of the film 110 is formed in any shape, but in this embodiment, since the center SP_C and the second base portion 121B The bonding area 140 on the side, specifically the first bonding area 141 and the second bonding area are defined in relation to the arrangement, so instead of the first base 121A side, the center SP_C is set based on the bonding area 140 on the second base 121B side. Also, for example, the folded portion of the film 110 may be formed instead of the side seal portion 113 , but in this case, the center SP_C can be specified by drawing a diagonal line from the intersection point of the folded portion, the bottom seal portion 112 and the bonding region 140 . Also, when the part corresponding to the bottom seal part 112 or the side seal part 113 forms a gusset in which the film is folded inward, the center SP_C is set for the planar shape of the outer edge of the storage space SP that does not include the folded part .

加熱內容物時之收納空間SP內之蒸氣壓於收納空間SP之中心SP_C中最高，隨著自中心SP_C分離而變低。因此，模式而言，可假設顯示收納空間SP內之蒸氣壓之等壓線SC作為以收納空間SP之中心SP_C為中心之圓。圖4中將中心SP_C作為中心顯示半徑d1之等壓線SC。如上所述因半徑d1為中心SP_C至第1接合區域141之最短距離，故於圖示之例中，加熱內容物時施加於第1接合區域141之蒸氣壓成為與等壓線SC對應之蒸氣壓以下。The vapor pressure in the storage space SP when the content is heated is highest in the center SP_C of the storage space SP, and becomes lower as it is separated from the center SP_C. Therefore, in terms of a model, it can be assumed that the isobar SC showing the vapor pressure in the storage space SP is a circle centered on the center SP_C of the storage space SP. In FIG. 4 , the isobaric lines SC of the radius d1 are shown with the center SP_C as the center. As mentioned above, since the radius d1 is the shortest distance from the center SP_C to the first bonding region 141, in the example shown in the figure, the vapor pressure applied to the first bonding region 141 when the content is heated becomes a vapor corresponding to the isobar SC Press down.

另，因收納空間SP之中心SP_C至第2接合區域142之最短距離d2為至第1接合區域141之最短距離d1以下，故第2接合區域142之至少一部分處於圖示之半徑d1之等壓線SC更內側、或等壓線SC上。此處，等壓線SC係以中心SP_C作為中心，與第1接合區域141相接之圓之圓周。因此，於加熱內容物時施加於第2接合區域142之至少一部分之蒸氣壓成為與等壓線SC對應之蒸氣壓以上。若該蒸氣壓超過第2接合區域142之第2基部121B與第2面111B之間之接合強度，則如圖2B所示破壞第2接合區域142形成蒸氣出口。若形成蒸氣出口，則排出排氣，藉此收納空間SP之蒸氣壓不會繼續上升。In addition, since the shortest distance d2 from the center SP_C of the storage space SP to the second joint area 142 is less than the shortest distance d1 to the first joint area 141, at least a part of the second joint area 142 is at an equal pressure of the radius d1 shown in the figure. The inner side of the line SC, or on the isobaric line SC. Here, the isobar SC is the circumference of a circle that contacts the first bonding region 141 with the center SP_C as the center. Therefore, when the content is heated, the vapor pressure applied to at least a part of the second bonding region 142 becomes equal to or higher than the vapor pressure corresponding to the isobar SC. If the vapor pressure exceeds the bonding strength between the second base portion 121B and the second surface 111B of the second bonding region 142 , the second bonding region 142 is destroyed to form a vapor outlet as shown in FIG. 2B . If the steam outlet is formed, the exhaust gas will be discharged, so that the steam pressure in the storage space SP will not continue to rise.

此處，例如於收納空間SP之中心SP_C至第2接合區域142之最短距離d2超過至第1接合區域141之最短距離d1之情形時，加熱內容物時施加於第1接合區域141之蒸氣壓超過施加於第2接合區域142之蒸氣壓。因第1接合區域141為第2基部121B於低接合強度層124以外之部分接合於第2面111B之部分，故即使蒸氣壓上升亦不被破壞，但以較強之力介隔第1接合區域141拉伸第2基部121B，藉此扣合部122A、122B及扣合部123A、123B之扣合脫落，於破壞第2接合區域142形成蒸氣出口之前有打開夾鏈帶120之可能性。Here, for example, when the shortest distance d2 from the center SP_C of the storage space SP to the second bonding region 142 exceeds the shortest distance d1 to the first bonding region 141, the vapor pressure applied to the first bonding region 141 when heating the contents exceeds the vapor pressure applied to the second bonding region 142 . Since the first joint region 141 is the part where the second base 121B is joined to the second surface 111B except for the low joint strength layer 124, it will not be destroyed even if the vapor pressure rises, but the first joint is separated by a strong force. The area 141 stretches the second base portion 121B, so that the fastening portions 122A, 122B and the fastening portions 123A, 123B are disengaged, and the zipper belt 120 may be opened before the second joint area 142 is destroyed to form a steam outlet.

於本實施形態中，如上所述藉由使距離d2為距離d1以下，於加熱內容物時施加於第1接合區域141之蒸氣壓成為施加於第2接合區域142之至少一部分之蒸氣壓以下。因此，可於經由第1接合區域141以較強之力拉伸第2基部121B之前破壞第2接合區域142形成蒸氣出口，防止蒸氣壓所致之非意欲之夾鏈帶120之開放。In this embodiment, by making the distance d2 equal to or smaller than the distance d1 as described above, the vapor pressure applied to the first bonding region 141 becomes equal to or lower than the vapor pressure applied to at least a part of the second bonding region 142 when heating the contents. Therefore, the second joining region 142 can be destroyed to form a steam outlet before the second base portion 121B is stretched with a strong force through the first joining region 141 , preventing the unintended opening of the zipper belt 120 due to steam pressure.

另，為防止蒸氣壓所致之非意欲之夾鏈帶120之開放，降低第2接合區域142之第2基部121B與第2面111B之間之剝離強度亦有效。於設想一般之夾鏈帶之扣合部作為扣合部122A、122B及扣合部123A、123B之情形時，第2接合區域142之第2基部121B與第2面111B之間之剝離強度較佳為30 N／50 mm以下，更佳為20 N／50 mm以下，進而較佳為15 N／50 mm以下，尤佳為10 N／50 mm以下。剝離強度之下限無特別限定，例如為1 N／50 mm。為將剝離強度設為上述範圍，而例如亦可調節形成低接合強度層124之樹脂組成物之成分、或形成接合區域140時之密封溫度。藉由設定上述般之剝離強度，以更低之蒸氣壓破壞第2接合區域142形成蒸氣出口，可更確實地防止蒸氣壓所致之非意欲之夾鏈帶120之開放。In addition, it is also effective to reduce the peeling strength between the second base 121B and the second surface 111B of the second joining region 142 in order to prevent the unintended opening of the fastener tape 120 due to vapor pressure. When assuming the fastening portion of a general zipper belt as the fastening portion 122A, 122B and the fastening portion 123A, 123B, the peel strength between the second base portion 121B and the second surface 111B of the second joint region 142 is relatively high. It is preferably at most 30 N/50 mm, more preferably at most 20 N/50 mm, still more preferably at most 15 N/50 mm, especially preferably at most 10 N/50 mm. The lower limit of the peel strength is not particularly limited, and is, for example, 1 N/50 mm. In order to set the peel strength within the above range, for example, the components of the resin composition forming the low bonding strength layer 124 or the sealing temperature at the time of forming the bonding region 140 may be adjusted. By setting the above-mentioned peeling strength and destroying the second joint region 142 with a lower vapor pressure to form a vapor outlet, the unintended opening of the zipper tape 120 caused by the vapor pressure can be more reliably prevented.

另，剝離強度可藉由如此算出：將夾鏈帶120及薄膜110切成寬度50 mm，於23℃、濕度50%下放置約24小時之後，於23℃、濕度50%下如圖5所示於沿第2基部121B之寬度方向成約180°之角度之相反方向上以拉伸速度300 mm／min進行拉伸，破壞第2接合區域142測定第2基部121B與第2面111B之間剝離時之應力之最大強度。拉伸力雖可使用例如IMADA有限公司製之數位測力計測定，但不限定於該例。In addition, the peel strength can be calculated as follows: Cut the zipper tape 120 and the film 110 into a width of 50mm, and after placing it at 23°C and a humidity of 50% for about 24 hours, place it at 23°C and a humidity of 50%, as shown in Figure 5 It is shown that the second base 121B is stretched in the opposite direction at an angle of about 180° along the width direction of the second base 121B at a tensile speed of 300 mm/min, and the second bonding region 142 is destroyed to measure the peeling between the second base 121B and the second surface 111B The maximum intensity of the stress at that time. The tensile force can be measured using, for example, a digital dynamometer manufactured by IMADA Co., Ltd., but it is not limited to this example.

圖6係顯示本發明之第1實施形態之蒸氣出口之配置例之圖。於本實施形態中，形成有第2接合區域142之夾鏈帶120之長邊方向之第1區間S 1亦可相對於長邊方向中心120C偏心配置。偏心之比例由長邊方向中心120C至第1區間S 1之長邊方向之中間部之距離Y相對於附有夾鏈帶之袋100之開口寬度之一半之長度X之比Y／X表示。此處，開口寬度為自夾鏈帶120之全長去除藉由側封部113密封之部分之長度。於第1區間S 1自夾鏈帶120之長邊方向中心120C偏心之情形時，因Y＞0，故Y／X大於0。Y／X較佳為0.15以上，更佳為0.20以上，進而較佳為0.40以上，進而更佳為0.60以上，尤佳為0.80以上。上限值無特別限定，未達1。另，於形成有蒸氣出口之區間中複數個區間與上述第1區間S 1同樣偏心之情形時，將於各區間之長邊方向之中間部至夾鏈帶120之長邊方向中心120C之距離中最大者設為距離Y，只要滿足關於上述之Y／X之條件即可。 Fig. 6 is a diagram showing an example of arrangement of steam outlets in the first embodiment of the present invention. In the present embodiment, the first section S1 in the longitudinal direction of the fastener tape 120 in which the second joining region 142 is formed may be arranged eccentrically with respect to the longitudinal center 120C. The ratio of eccentricity is represented by the ratio Y/X of the distance Y from the longitudinal center 120C to the longitudinal middle of the first section S1 to the length X of half the opening width of the bag with zipper belt 100 . Here, the opening width is the length of the portion sealed by the side seal portion 113 from the entire length of the zipper tape 120 . In the case where the first section S1 is eccentric from the center 120C in the longitudinal direction of the zipper belt 120 , Y/X is greater than 0 because Y>0. Y/X is preferably at least 0.15, more preferably at least 0.20, still more preferably at least 0.40, still more preferably at least 0.60, particularly preferably at least 0.80. The upper limit is not particularly limited and is less than 1. In addition, in the case where a plurality of sections in the section where the steam outlet is formed are eccentric in the same manner as the above-mentioned first section S1 , the distance from the middle part in the longitudinal direction of each section to the center 120C in the longitudinal direction of the zip chain belt 120 The largest one is set as the distance Y, as long as the above-mentioned Y/X condition is satisfied.

又，於上述之例中，夾鏈帶120之長邊方向之第1區間S 1之長度W(與形成之蒸氣出口之寬度大致相等)相對於附有夾鏈帶之袋100之開口寬度之一半之長度X之比W／X較佳為0.04以上，更佳為0.05以上，進而較佳為0.10以上，尤佳為0.15以上。上限雖無特別限制，根據使用之食品等之特徵適當調整，但例如為0.6。此原因在於若蒸氣出口之寬度過窄則夾鏈帶120之長邊方向中央部之變形量變大。另，於形成有蒸氣出口之區間中複數個區間與上述第1區間S 1同樣偏心之情形時，只要任一個區間之長度W滿足上述之W／X相關之條件即可。 Also, in the above example, the length W of the first section S1 in the longitudinal direction of the zipper belt 120 (approximately equal to the width of the formed steam outlet) is relative to the opening width of the bag 100 with the zipper belt. The ratio W/X of the half length X is preferably at least 0.04, more preferably at least 0.05, further preferably at least 0.10, and most preferably at least 0.15. The upper limit is not particularly limited and may be appropriately adjusted according to the characteristics of the food to be used, but is, for example, 0.6. The reason for this is that if the width of the steam outlet is too narrow, the amount of deformation of the central portion in the longitudinal direction of the zipper belt 120 will increase. In addition, in the case where a plurality of sections are eccentric like the first section S1 in the section where the vapor outlet is formed, the length W of any one section satisfies the above-mentioned W/X correlation condition.

圖7係顯示本發明之第1實施形態之接合區域之配置之變化例之圖。於圖7所示之例中，於夾鏈帶120之長邊方向上設置複數個第2接合區域142A、142B。於圖示之例中，收納空間SP之中心至第2接合區域142A、142B之各者之最短距離為收納空間SP之中心至第1接合區域141之最短距離以下。藉由設置複數個此種第2接合區域142A、142B，而於加熱內容物C時形成複數個蒸氣出口，更穩定地釋放蒸氣，藉此抑制收納空間SP之蒸氣壓之上升，可更確實地防止蒸氣壓所致之非意欲之夾鏈帶120之開放。另，於圖示之例中設置2個第2接合區域142A、142B，亦可設置3個以上之第2接合區域。又，於圖示之例中，第2接合區域142A、142B均不重複地設置於夾鏈帶120之長邊方向中心，亦可使任一者於夾鏈帶120之長邊方向中心重複而設置第2接合區域。Fig. 7 is a diagram showing a modification example of the arrangement of bonding regions according to the first embodiment of the present invention. In the example shown in FIG. 7, the some 2nd joining area|region 142A, 142B is provided in the longitudinal direction of the fastener tape 120. As shown in FIG. In the illustrated example, the shortest distance from the center of the storage space SP to each of the second bonding regions 142A and 142B is equal to or less than the shortest distance from the center of the storage space SP to the first bonding region 141 . By providing a plurality of such second joining regions 142A, 142B, a plurality of steam outlets are formed when the content C is heated, and the steam is released more stably, thereby suppressing the rise of the steam pressure in the storage space SP, and more reliably Unintended opening of the zipper belt 120 due to vapor pressure is prevented. In addition, in the illustrated example, two second bonding regions 142A and 142B are provided, but three or more second bonding regions may be provided. Also, in the illustrated example, the second joining regions 142A, 142B are not repeatedly arranged at the center of the longitudinal direction of the zipper belt 120, and either one may be repeated at the center of the zipper belt 120 in the longitudinal direction. Set the 2nd joining area.

圖8係顯示本發明之第1實施形態之接合區域之形狀之變化例之圖。於圖8所示之例中，第2接合區域142具有於夾鏈帶120之長邊方向上非對稱之形狀。更具體而言，第2接合區域142具有收納空間SP側之端緣向夾鏈帶120之長邊方向中心側延長之形狀。例如，於定位蒸氣出口之位置之情形時，亦可沿連結蒸氣出口與收納空間SP之中心SP_C之線延長第2接合區域142之形狀。Fig. 8 is a diagram showing a modification example of the shape of the bonding region according to the first embodiment of the present invention. In the example shown in FIG. 8 , the second joining region 142 has an asymmetrical shape in the longitudinal direction of the fastener tape 120 . More specifically, the second joining region 142 has a shape in which the end edge on the storage space SP side extends toward the center side in the longitudinal direction of the zipper tape 120 . For example, when positioning the position of the steam outlet, the shape of the second joining region 142 may be extended along the line connecting the steam outlet and the center SP_C of the storage space SP.

藉由將如此延長之第2接合區域142之收納空間SP側之前端之形狀設為銳角，而於蒸氣壓上升時使應力集中，可容易剝離第2接合區域142。另一方面，藉由將第2接合區域142之收納空間SP側之前端之形狀設為鈍角、或帶有弧度之形狀，可防止因形成接合區域時之位置偏移而使收納空間SP之中心SP_C至第2接合區域142之最短距離d2大幅變動。例如考慮上述般之要件決定本變化例之第2接合區域142之收納空間SP側之前端之形狀。By making the shape of the front end of the extended second bonding region 142 on the storage space SP side an acute angle, stress is concentrated when the vapor pressure rises, and the second bonding region 142 can be easily peeled off. On the other hand, by setting the shape of the front end of the storage space SP side of the second bonding area 142 as an obtuse angle or a curved shape, it is possible to prevent the center of the storage space SP from being distorted due to positional deviation when forming the bonding area. The shortest distance d2 from SP_C to the second bonding region 142 varies greatly. For example, the shape of the front end on the storage space SP side of the second bonding region 142 in this modification is determined in consideration of the above-mentioned requirements.

藉由將第2接合區域142設為上述般之形狀，例如於蒸氣出口形成於自夾鏈帶120之長邊方向中心分開之位置之情形時，亦可使第2接合區域142之收納空間SP側之端緣接近收納空間SP之中心，將距離d2設為距離d1以下。藉此，於加熱內容物時，可於施加於第1接合區域141之蒸氣壓上升之前，自第2接合區域142之收納空間SP側之端緣開始剝離形成蒸氣出口，防止非意欲之夾鏈帶120之開放。By setting the second joint area 142 into the above-mentioned shape, for example, when the steam outlet is formed at a position away from the center of the longitudinal direction of the zip fastener belt 120, the storage space SP of the second joint area 142 can also be enlarged. The side edge is close to the center of the storage space SP, and the distance d2 is set to be equal to or less than the distance d1. In this way, when the content is heated, before the vapor pressure applied to the first bonding region 141 rises, the steam outlet can be formed by peeling off from the edge of the second bonding region 142 on the storage space SP side, preventing unwanted chaining Open with 120.

(第2實施形態) 圖9係本發明之第2實施形態之附有夾鏈帶之袋之俯視圖。圖10A、圖10B及圖11係圖9所示之袋體之X-X線及XI-XI線之剖視圖。以下，參照該等圖，對本實施形態之附有夾鏈帶之袋之構成進行說明。 (Second Embodiment) Fig. 9 is a top view of a bag with a zipper belt according to a second embodiment of the present invention. Fig. 10A, Fig. 10B and Fig. 11 are the sectional views of the X-X line and XI-XI line of the bag shown in Fig. 9 . Hereinafter, referring to these figures, the structure of the bag with the fastener tape of this embodiment is demonstrated.

如圖示所示，附有夾鏈帶之袋200包含：袋狀之容器本體，其藉由具有相互對向之第1面111A及第2面111B之薄膜110形成；及夾鏈帶220，其配置於薄膜110之第1面111A及第2面111B之間。夾鏈帶220如稍後所述橫跨全長將寛度方向之至少一部分接合於第1面111A及第2面111B，藉此劃定形成於薄膜110之第1面111A及第2面111B之間之收納間SP之一邊。另，針對薄膜110之構成，因與上述第1實施形態同樣，故省略重複之說明。As shown in the figure, the bag 200 with zipper belt includes: a bag-shaped container body, which is formed by a film 110 having a first surface 111A and a second surface 111B opposite to each other; and a zipper belt 220, It is disposed between the first surface 111A and the second surface 111B of the film 110 . As will be described later, the zipper tape 220 joins at least a part of the width direction to the first surface 111A and the second surface 111B across the entire length, thereby defining the gap between the first surface 111A and the second surface 111B formed on the film 110 . One side of the storage room SP. In addition, since the structure of the thin film 110 is the same as that of the above-mentioned first embodiment, repeated description is omitted.

夾鏈帶220為長條狀之構件，其於剖面形狀包含：第1基部221A，其接合於第1面111A；第2基部221B，其接合於第2面111B；及扣合部222A及扣合部222B，其等分別自第1基部221A及第2基部221B之相互對向之面突出且可相互扣合。夾鏈帶220例如由聚烯烴系樹脂之擠出成形而形成。更具體而言，夾鏈帶220亦可以低密度聚乙烯(LDPE)、直鏈狀低密度聚乙烯(LLDPE)、或聚丙烯(PP)形成。PP可為均聚丙烯(HPP)、無規聚丙烯(RPP)、或嵌段聚丙烯(BPP)。聚烯烴系樹脂不限於源自化石燃料之樹脂，亦可為顧及環境之生物塑膠(源自生物之生物聚乙烯或生物聚丙烯等聚烯烴系樹脂)，可為源自化石燃料之樹脂與生物塑膠之混合物。亦可視需要，於夾鏈帶220之材料，添加周知之添加劑，例如穩定劑、抗氧化劑、潤滑劑、抗靜電劑、或著色劑等。The zipper belt 220 is an elongated member, and its cross-sectional shape includes: a first base portion 221A, which is joined to the first surface 111A; a second base portion 221B, which is joined to the second surface 111B; and a fastening portion 222A and a buckle The engaging portions 222B respectively protrude from the opposing surfaces of the first base portion 221A and the second base portion 221B and can be engaged with each other. The zipper tape 220 is formed by extrusion molding of polyolefin resin, for example. More specifically, the zipper belt 220 may also be formed of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), or polypropylene (PP). PP can be homopolypropylene (HPP), random polypropylene (RPP), or block polypropylene (BPP). Polyolefin-based resins are not limited to resins derived from fossil fuels, but can also be bioplastics that take into account the environment (polyolefin-based resins such as bio-polyethylene or bio-polypropylene derived from organisms), resins derived from fossil fuels and bio-based resins can also be used. Mixture of plastics. It is also possible to add known additives, such as stabilizers, antioxidants, lubricants, antistatic agents, or colorants, to the material of the zipper belt 220 as needed.

另，扣合部222A及扣合部222B不限定於圖示之例般之形狀，可設為使爪狀、鉤狀、或瘤狀等組合之周知之各種夾鏈帶之扣合部之形狀。又，於圖示之例中配置1對扣合部222A及扣合部222B，亦可配置複數對扣合部222A及扣合部222B。扣合部222A及扣合部222B可密封、開封、及再密封附有夾鏈帶之袋200。In addition, the fastening part 222A and the fastening part 222B are not limited to the general shape shown in the figure, and can be made into the shape of the fastening part of various well-known zipper belts combining claw shape, hook shape, or knob shape. . In addition, in the illustrated example, one pair of the engaging portion 222A and the engaging portion 222B is arranged, but a plurality of pairs of the engaging portion 222A and the engaging portion 222B may be arranged. The fastening portion 222A and the fastening portion 222B can seal, unseal, and reseal the zipper bag 200 .

於本實施形態中，夾鏈帶220之剖面形狀包含由第1樹脂組成物形成之第1部分225、與由第2樹脂組成物形成之第2部分226。第1部分225由第1樹脂組成物形成，第2部分226由第2樹脂組成物形成。更具體而言，第2部分226形成與第2面111B對向之第2基部221B之一部分(作為面221B1圖示)。另一方面，第1部分225形成第1基部221A、扣合部222A、及扣合部222B之全部、與包含第2面111B所對向之面(作為面221B2圖示)之第2基部221B之剩下之部分。In this embodiment, the cross-sectional shape of the fastener tape 220 includes the first part 225 formed of the first resin composition, and the second part 226 formed of the second resin composition. The first part 225 is formed of the first resin composition, and the second part 226 is formed of the second resin composition. More specifically, the second portion 226 forms a part of the second base 221B facing the second surface 111B (shown as a surface 221B1 ). On the other hand, the first portion 225 forms all of the first base portion 221A, the engaging portion 222A, and the engaging portion 222B, and the second base portion 221B including the surface (shown as surface 221B2) facing the second surface 111B. the remaining part.

形成上述第2部分226之第2樹脂組成物係與形成第1部分225之第1樹脂組成物不同之樹脂組成物。例如，藉由表1所例示之構成，加熱內容物時之第1部分225與第2部分226之間之接合強度低於第1部分225與第2面111B及第1面111A之各者之間、及第2部分226與第2面111B之間之接合強度。於表1之例中，第1樹脂組成物為聚丙烯，第2樹脂組成物為聚乙烯。具體而言，例如於第2面111B與第2部分226之間由第3樹脂組成物形成第3部分(未圖示)、或於第2面111B與第2部分226之間介存接著劑，藉此可提高第2部分226與第2面111B之間之接合強度，並使第1部分225與第2部分226之間之接合強度相對低於第2部分226與第2面111B之間之接合強度。The second resin composition forming the second portion 226 is a resin composition different from the first resin composition forming the first portion 225 . For example, with the configuration shown in Table 1, the bonding strength between the first part 225 and the second part 226 when the content is heated is lower than that of the first part 225 and each of the second surface 111B and the first surface 111A. Between, and the bonding strength between the second portion 226 and the second surface 111B. In the example shown in Table 1, the first resin composition is polypropylene, and the second resin composition is polyethylene. Specifically, for example, a third part (not shown) is formed from a third resin composition between the second surface 111B and the second part 226, or an adhesive is interposed between the second surface 111B and the second part 226. , thereby improving the joint strength between the second part 226 and the second surface 111B, and making the joint strength between the first part 225 and the second part 226 relatively lower than that between the second part 226 and the second surface 111B the bonding strength.

[表3] [table 3]

或，藉由採用表2所例示之樹脂組成物之組合，亦可使加熱內容物時之第1部分225與第2部分226之間之接合強度低於第1部分225與第2面111B及第1面111A之各者之間、及第2部分226與第2面111B之間之接合強度。另，於表2中Tm意指熔點。Alternatively, by using the combination of the resin compositions shown in Table 2, the joint strength between the first part 225 and the second part 226 when the content is heated can be lower than that between the first part 225 and the second surface 111B and The bonding strength between each of the first surfaces 111A, and between the second portion 226 and the second surface 111B. In addition, in Table 2, Tm means a melting point.

[表4] [Table 4]

於本實施形態中，第1基部221A於夾鏈帶220之全長接合於第1面111A。因第1基部221A為整體由第1樹脂組成物形成之第1部分225，故將第1基部221A接合於第1面111A之區域為任意。另一方面，第2基部221B亦於夾鏈帶220之全長接合於第2面111B，但藉由熱密封或超音波密封接合第2基部221B與第2面111B之接合區域240包含第1接合區域241及第2接合區域242。於第1接合區域241，如圖11所示於第1部分225(面221B2)接合於第2面111B(於第2部分226中亦可接合)。另一方面，於第2接合區域242中，如圖10A所示，第2基部221B僅於第2部分226(面221B1)接合於第2面111B。即，於第2接合區域142中，第2部分226(面221B1)與第2面111B之接合區域面向收納空間SP側及開口101側(收納空間SP之相反側)之兩者之空間。In the present embodiment, the first base portion 221A is joined to the first surface 111A over the entire length of the fastener tape 220 . Since the first base portion 221A is the first portion 225 formed entirely of the first resin composition, the region where the first base portion 221A is bonded to the first surface 111A is optional. On the other hand, the second base 221B is also bonded to the second surface 111B over the entire length of the zipper tape 220, but the bonding region 240 where the second base 221B and the second surface 111B are bonded by heat sealing or ultrasonic sealing includes the first bonding. region 241 and the second bonding region 242 . In the first bonding region 241 , as shown in FIG. 11 , the first portion 225 (surface 221B2 ) is bonded to the second surface 111B (it may also be bonded to the second portion 226 ). On the other hand, in the second bonding region 242 , as shown in FIG. 10A , the second base portion 221B is bonded to the second surface 111B only at the second portion 226 (surface 221B1 ). That is, in the second joining region 142, the joining region between the second portion 226 (surface 221B1) and the second surface 111B faces the space between the storage space SP side and the opening 101 side (opposite side to the storage space SP).

更具體而言，於夾鏈帶220之寛度方向上，因第2部分226形成於第2基部221B之扣合部222B之根部與開口101側(收納空間SP之相反側)之端部之間之中間部分，故於較第2部分226更靠開口101側存在第1部分225。如圖9所示，接合區域240中第1接合區域241形成於相對於第2部分226位於收納空間SP側之第1部分225，第2接合區域242藉由使接合區域240向開口101之相反側，即收納空間SP側伸出而形成。More specifically, in the width direction of the zipper belt 220, since the second part 226 is formed between the root of the fastening part 222B of the second base part 221B and the end on the side of the opening 101 (opposite to the storage space SP), Therefore, the first part 225 exists closer to the opening 101 side than the second part 226. As shown in FIG. 9 , in the joint area 240 , the first joint area 241 is formed on the first portion 225 located on the storage space SP side relative to the second portion 226 , and the second joint area 242 is formed by making the joint area 240 opposite to the opening 101 . The side, that is, the storage space SP side protrudes and is formed.

藉由此種構成，於藉由加熱內容物C，收納空間SP內之蒸氣壓上升之情形時，如圖10B所示破壞薄膜110之第2面111B與第1面111A之間接合強度最低之部分，即夾鏈帶220之第1部分225與第2部分226之間之接合。藉由破壞上述般之接合，第2基部221B之第2部分226(包含面221B1之部分)與第1部分225(包含面221B2之剩下之部分)分離，收納空間SP與外部連通，藉此排出蒸氣。藉由此種構成，於本實施形態中，可形成於加熱內容物時可穩定釋放蒸氣之蒸氣出口。With this configuration, when the vapor pressure in the storage space SP rises by heating the content C, as shown in FIG. Part, that is, the joint between the first part 225 and the second part 226 of the zipper belt 220 . By breaking the above-mentioned joint, the second part 226 (the part including the surface 221B1) of the second base part 221B is separated from the first part 225 (the remaining part including the surface 221B2), and the storage space SP communicates with the outside, thereby Let off steam. With such a configuration, in this embodiment, a steam outlet that can stably release steam when the content is heated can be formed.

於本實施形態中，第2基部221B如圖10A、圖10B及圖11所示，藉由第1接合區域241及第2接合區域242，於所謂單側脫落之狀態下安裝於薄膜110之第2面111B。具體而言，第2基部221B僅於寬度方向之較扣合部222B之位置更靠收納空間SP之相反側，藉由第1接合區域241及第2接合區域242接合於薄膜110之第2面111B。藉由此種構成，於加熱內容物時收納空間SP內之蒸氣壓增大之情形，如圖10B中箭頭所示，沿各者之基部之寬度方向對第1基部221A及第2基部221B之間作用切斷方向之力。因該方向之力使母型之扣合部222B之一者之爪與公型之扣合部122A更強地扣合，故不易因蒸氣壓之作用而解除扣合部之形狀。又，藉此，收納空間SP內之蒸氣壓除扣合部外亦容易分散作用於第2基部221B與第2面211B之間。In this embodiment, as shown in FIG. 10A, FIG. 10B and FIG. 11 , the second base portion 221B is attached to the second base portion of the film 110 in a so-called one-side detachment state through the first bonding region 241 and the second bonding region 242 . 2 sides 111B. Specifically, the second base portion 221B is bonded to the second surface of the film 110 through the first bonding region 241 and the second bonding region 242 only on the side opposite to the storage space SP in the width direction than the fastening portion 222B. 111B. With this configuration, when the vapor pressure in the storage space SP increases when the content is heated, as shown by the arrow in FIG. Interaction cuts the direction of the force. Because of the force in this direction, the claw of one of the buckling parts 222B of the female type and the buckling part 122A of the male type are more strongly buckled, so it is difficult to release the shape of the buckling part due to the effect of steam pressure. In addition, by this, the vapor pressure in the storage space SP can be easily dispersed and acted on between the second base portion 221B and the second surface 211B in addition to the fastening portion.

於本實施形態中，亦與參照圖1或圖8說明之例同樣，收納空間SP之中心至第1接合區域241之最短距離為收納空間SP之中心至第2接合區域242之最短距離以上。收納空間SP之中心與上述針對第1實施形態說明者同樣定義。如上所述藉由配置第1接合區域241及第2接合區域242，而使加熱內容物時施加於第1接合區域241之蒸氣壓成為施加於第2接合區域242之至少一部分之蒸氣壓以下。因此，於經由第1接合區域241以較強之力拉伸第2基部221B之前，可於第2接合區域242破壞第1部分225與第2部分226之間之接合形成蒸氣出口，防止蒸氣壓所致之非意欲之夾鏈帶220之開放。In this embodiment, as in the example described with reference to FIG. 1 or FIG. 8 , the shortest distance from the center of the storage space SP to the first bonding region 241 is greater than or equal to the shortest distance from the center of the storage space SP to the second bonding region 242 . The center of the storage space SP is defined in the same manner as described above for the first embodiment. By arranging the first bonding region 241 and the second bonding region 242 as described above, the vapor pressure applied to the first bonding region 241 becomes lower than the vapor pressure applied to at least a part of the second bonding region 242 when the content is heated. Therefore, before the second base part 221B is stretched with a strong force through the first joint area 241, the joint between the first part 225 and the second part 226 can be broken in the second joint area 242 to form a vapor outlet, preventing the vapor pressure The resulting unintended zipper belt 220 is opened.

又，於本實施形態中，第1部分225與第2部分226之間之剝離強度較佳為20 N／50 mm以下，更佳為15 N／50 mm以下，進而較佳為10 N／50 mm以下，剝離強度之下限並無特別限定，例如為1 N／50 mm。為將剝離強度設為上述之範圍，例如亦可調整形成第1部分225及第2部分226之樹脂組成物之成分。藉由設定上述般之剝離強度，可以更低之蒸氣壓破壞第1部分225與第2部分226之間之接合形成蒸氣出口，更確實地防止蒸氣壓所致之非意欲之夾鏈帶220之開放。又，針對第1實施形態，參照圖6、圖7及圖8說明之接合區域之配置及形狀之變化例亦可應用於第2實施形態。Also, in this embodiment, the peel strength between the first part 225 and the second part 226 is preferably 20 N/50 mm or less, more preferably 15 N/50 mm or less, and still more preferably 10 N/50 mm or less. mm or less, the lower limit of the peel strength is not particularly limited, and is, for example, 1 N/50 mm. In order to make the peel strength into the above range, for example, the components of the resin composition forming the first part 225 and the second part 226 may be adjusted. By setting the above-mentioned peeling strength, the joint between the first part 225 and the second part 226 can be destroyed at a lower steam pressure to form a steam outlet, and the unintended zipper belt 220 caused by the steam pressure can be prevented more reliably. open. Furthermore, the modified example of the arrangement and shape of the bonding region described with reference to FIGS. 6 , 7 and 8 with respect to the first embodiment can also be applied to the second embodiment.

以上，一面參照隨附圖式一面對本發明之較佳實施形態詳細地進行說明，但本發明不限定於該等例。若為本發明所屬技術領域之熟知技藝者，當明瞭於申請專利範圍所記載之技術思想之範疇內，可想到各種變更例或修正例，應瞭解該等當然亦屬於本發明之技術範圍內者。As mentioned above, although the preferred embodiment of this invention was demonstrated in detail, referring an accompanying drawing, this invention is not limited to these examples. Those who are familiar with the technical field of the present invention should understand that within the scope of the technical ideas recorded in the scope of the patent application, various modifications or amendments can be conceived, and it should be understood that these are of course also within the technical scope of the present invention. .

100:附有夾鏈帶之袋 101:開口 110:薄膜 111A:第1面 111B:第2面 112:底封部 113:側封部 120:夾鏈帶 120C:長邊方向中心 121A:第1基部 121B:第2基部 122A:扣合部 122B:扣合部 123A:扣合部 123B:扣合部 124:低接合強度層 140:接合區域 141:第1接合區域 142:第2接合區域 142A:第2接合區域 142B:第2接合區域 200:附有夾鏈帶之袋 220:夾鏈帶 221A:第1基部 221B:第2基部 221B1:面 221B2:面 222A:扣合部 222B:扣合部 225:第1部分 226:第2部分 240:接合區域 241:第1接合區域 242:第2接合區域 C:內容物 d1:最短距離 d2:最短距離 S 1:第1區間 SC:等壓線 SP:收納空間 SP_C:中心 W:長度 X:長度 Y:距離 100: Bag with zipper belt 101: Opening 110: Film 111A: First surface 111B: Second surface 112: Bottom seal 113: Side seal 120: Zipper belt 120C: Center in the longitudinal direction 121A: First Base 121B: second base 122A: fastening part 122B: fastening part 123A: fastening part 123B: fastening part 124: low joint strength layer 140: joint area 141: first joint area 142: second joint area 142A: Second joining area 142B: Second joining area 200: Bag with zipper belt 220: Zipper belt 221A: First base 221B: Second base 221B1: Surface 221B2: Surface 222A: Fastening part 222B: Fastening part 225: first part 226: second part 240: joint area 241: first joint area 242: second joint area C: content d1: shortest distance d2: shortest distance S1 : first section SC: isobar SP : storage space SP_C: center W: length X: length Y: distance

圖1係本發明之第1實施形態之附有夾鏈帶之袋之俯視圖。 圖2A係圖1所示之附有夾鏈帶之袋之II-II線剖視圖。 圖2B係加熱圖1所示之附有夾鏈帶之袋之內容物時之II-II線剖視圖。 圖3係圖1所示之附有夾鏈帶之袋之III-III線剖視圖。 圖4係用於對本發明之第1實施形態之接合區域之配置進行說明之圖。 圖5係用於對剝離強度之測定方法進行說明之圖。 圖6係顯示本發明之第1實施形態之蒸氣出口之配置例之圖。 圖7係顯示本發明之第1實施形態之接合區域之配置之變化例之圖。 圖8係顯示本發明之第1實施形態之接合區域之形狀之變化例之圖。 圖9係本發明之第2實施形態之附有夾鏈帶之袋之俯視圖。 圖10A係圖9所示之附有夾鏈帶之袋之X-X線剖視圖。 圖10B係加熱圖9所示之附有夾鏈帶之袋之內容物時之X-X線剖視圖。 圖11係圖9所示之附有夾鏈帶之袋之XI-XI線剖視圖。 圖12係顯示先前之容器之彎曲之照片(使容器內充滿空氣，提高內壓並模擬再現與範圍提高時同樣之狀態者)。 Fig. 1 is a top view of a bag with a zipper belt according to the first embodiment of the present invention. Fig. 2A is the sectional view of line II-II of the bag with zipper belt shown in Fig. 1 . Fig. 2B is the II-II sectional view when the contents of the bag with the zipper belt shown in Fig. 1 are heated. Fig. 3 is the III-III sectional view of the bag shown in Fig. 1 with the zipper belt. Fig. 4 is a diagram for explaining the arrangement of bonding regions according to the first embodiment of the present invention. Fig. 5 is a diagram for explaining a method of measuring peel strength. Fig. 6 is a diagram showing an example of arrangement of steam outlets in the first embodiment of the present invention. Fig. 7 is a diagram showing a modification example of the arrangement of bonding regions according to the first embodiment of the present invention. Fig. 8 is a diagram showing a modification example of the shape of the bonding region according to the first embodiment of the present invention. Fig. 9 is a top view of a bag with a zipper belt according to a second embodiment of the present invention. Fig. 10A is the X-X sectional view of the bag shown in Fig. 9 with the zipper belt. Fig. 10B is the X-X sectional view when the contents of the bag with the zipper belt shown in Fig. 9 are heated. Fig. 11 is the sectional view of line XI-XI of the bag with clip chain belt shown in Fig. 9 . Fig. 12 is a photo showing the bending of the previous container (the container is filled with air, the internal pressure is increased, and the same state as when the range is increased is simulated and reproduced).

100:附有夾鏈帶之袋 100: Bag with zipper strap

101:開口 101: opening

110:薄膜 110: film

111A:第1面 111A:Side 1

111B:第2面 111B: side 2

112:底封部 112: Bottom seal

113:側封部 113: side sealing part

120:夾鏈帶 120: zipper belt

124:低接合強度層 124: low bonding strength layer

140:接合區域 140: joint area

141:第1接合區域 141: 1st joint area

142:第2接合區域 142:Second junction area

d1:最短距離 d1: the shortest distance

d2:最短距離 d2: the shortest distance

SC:等壓線 SC: isobar

SP:收納空間 SP: storage space

SP_C:中心 SP_C: Center

Claims (11)

一種附有夾鏈帶之容器，其具備： 容器本體，其至少具有相互對向之第1面及第2面，於上述第1面及上述第2面之間形成收納空間；及 夾鏈帶，其包含：第1基部，其配置於上述第1面與上述第2面之間，劃定上述收納空間之一邊，與上述第1面接合；第1扣合部，其自上述第1基部突出；第2基部，其與上述第2面接合；及第2扣合部，其自上述第2基部突出並可與上述第1扣合部扣合；且 於面向上述第2面之上述第2基部之一部分形成以與上述容器本體之接合強度低於上述夾鏈帶之其他部分之方式構成之低接合強度層； 上述第2基部與上述第2面之間之接合區域包含：第1接合區域，其將上述第2基部於上述低接合強度層以外之部分接合於上述第2面；及第2接合區域，其將上述第2基部僅於上述低接合強度層接合於上述第2面；且 上述收納空間之中心至上述第1接合區域之最短距離為上述收納空間之中心至上述第2接合區域之最短距離以上。 A container with a zipper belt, which has: The container body has at least a first surface and a second surface facing each other, and a storage space is formed between the first surface and the second surface; and The zipper belt includes: a first base part, which is arranged between the first surface and the second surface, defines one side of the storage space, and is joined to the first surface; a first base protrudes; a second base engages with the second surface; and a second engaging portion protrudes from the second base and is engageable with the first engaging portion; and A low bonding strength layer is formed on a part of the second base facing the second surface so that the bonding strength with the container body is lower than that of other parts of the zipper belt; The bonding region between the second base and the second surface includes: a first bonding region that bonds the second base to the second surface except for the low bonding strength layer; and a second bonding region that bonding the second base to the second surface only at the low bonding strength layer; and The shortest distance from the center of the storage space to the first joint area is greater than the shortest distance from the center of the storage space to the second joint area. 如請求項1之附有夾鏈帶之容器，其中於上述夾鏈帶之寬度方向上，上述低接合強度層形成於上述第2基部之上述第2扣合部之根部與位於上述收納空間之相反側之端部之間之中間部分； 上述第1接合區域相對於上述低接合強度層形成於上述收納空間之相反側； 上述第2接合區域藉由使上述接合區域伸出至上述收納空間側而形成。 The container with a zipper belt according to claim 1, wherein in the width direction of the zipper belt, the low bonding strength layer is formed at the root of the second fastening part of the second base part and at the bottom of the storage space. the middle part between the ends on opposite sides; The above-mentioned first bonding region is formed on the opposite side of the above-mentioned storage space with respect to the above-mentioned low bonding strength layer; The second joining region is formed by protruding the joining region to the storage space side. 一種附有夾鏈帶之容器，其具備： 容器本體，其至少具有相互對向之第1面及第2面，於上述第1面及上述第2面之間形成收納空間；及 夾鏈帶，其包含：第1基部，其配置於上述第1面與上述第2面之間，劃定上述收納空間之一邊，與上述第1面接合；第1扣合部，其自上述第1基部突出；第2基部，其與上述第2面接合；及第2扣合部，其自上述第2基部突出並可與上述第1扣合部扣合；且 面向上述第2面之上述第2基部之一部分由第2樹脂組成物形成，該第2樹脂組成物與形成上述第1基部及上述第2基部之剩下之部分的第1樹脂組成物不同； 上述第2基部與上述第2面之間之接合區域包含：第1接合區域，其將上述第2基部於由上述第1樹脂組成物形成之部分接合於上述第2面；及第2接合區域，其將上述第2基部僅於由上述第2樹脂組成物形成之部分接合於上述第2面；且 上述收納空間之中心至上述第1接合區域之最短距離為上述收納空間之中心至上述第2接合區域之最短距離以上。 A container with a zipper belt, which has: The container body has at least a first surface and a second surface facing each other, and a storage space is formed between the first surface and the second surface; and The zipper belt includes: a first base part, which is arranged between the first surface and the second surface, defines one side of the storage space, and is joined to the first surface; a first base protrudes; a second base engages with the second surface; and a second engaging portion protrudes from the second base and is engageable with the first engaging portion; and A part of the second base facing the second surface is formed of a second resin composition different from the first resin composition forming the first base and the rest of the second base; The bonding region between the second base and the second surface includes: a first bonding region that bonds the portion of the second base formed of the first resin composition to the second surface; and a second bonding region , which joins the above-mentioned second base to the above-mentioned second surface only at the portion formed of the above-mentioned second resin composition; and The shortest distance from the center of the storage space to the first joint area is greater than the shortest distance from the center of the storage space to the second joint area. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述第2接合區域於上述夾鏈帶之長邊方向中心不重複。The container with the zipper belt according to any one of claims 1 to 3, wherein the second joint area does not overlap at the center of the zipper belt in the longitudinal direction. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述第2接合區域形成於上述夾鏈帶之長邊方向之第1區間，上述夾鏈帶之長邊方向中心至上述第1區間之長邊方向之中間部之距離Y相對於上述附有夾鏈帶之容器之開口寬度之一半之長度X之比Y／X為0.15以上。A container with a zipper belt according to any one of claims 1 to 3, wherein the second joint area is formed in the first section of the zipper belt in the longitudinal direction, and the center of the zipper belt in the longitudinal direction to The ratio Y/X of the distance Y of the middle portion in the longitudinal direction of the first section to the length X of half the opening width of the container with the zipper belt is 0.15 or more. 如請求項1至3中任一項之附有夾鏈帶之容器，其中於上述夾鏈帶之長邊方向上設置複數個上述第2接合區域。The container with a zipper belt according to any one of claims 1 to 3, wherein a plurality of the second joining regions are provided in the longitudinal direction of the zipper belt. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述第2接合區域之上述第2基部與上述第2面之間之剝離強度為30 N／50 mm以下。The container with zipper belt according to any one of claims 1 to 3, wherein the peel strength between the second base and the second surface of the second joining region is 30 N/50 mm or less. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述第2接合區域之至少一部分位於較以上述收納空間之中心作為中心，與上述第1接合區域相接之圓之圓周更內側。The container with a zipper belt according to any one of Claims 1 to 3, wherein at least a part of the above-mentioned second joint area is located at a distance from a circle centered on the center of the above-mentioned storage space and connected to the above-mentioned first joint area. The circumference is more inside. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述第2接合區域具有上述收納空間側之端緣向上述夾鏈帶之長邊方向中心側延長之形狀。The container with a zipper belt according to any one of Claims 1 to 3, wherein the second joining region has a shape in which an end edge on the side of the storage space extends toward the center side of the zipper belt in the longitudinal direction. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述第2基部僅於寬度方向之較上述第2扣合部之位置更靠上述收納空間之相反側，藉由上述接合區域接合於上述第2面。The container with a zipper belt according to any one of claims 1 to 3, wherein the above-mentioned second base part is only on the opposite side of the above-mentioned storage space than the position of the above-mentioned second fastening part in the width direction, by the above-mentioned The bonding region is bonded to the second surface. 如請求項1至3中任一項之附有夾鏈帶之容器，其中上述容器本體為袋狀。The container with a zipper belt according to any one of Claims 1 to 3, wherein the container body is in the shape of a bag.
TW111144149A 2021-11-18 2022-11-18 Zipper tape container TW202327945A (en)

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