201006734 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種包裝（package )，更詳細而言係有 關一種軟質包裝。 【先前技術】 以收容物品之包裝容器而言，係考量到物品的性質而 開發有各種包裝容器。在例如物品為濾嘴香煙（filter cigarette)或香煙（cigarette)等於草（tobacco)商品時， ❹以該菸草商品的包裝容器而言，大多使用鉸鏈蓋（hinged lid)型的硬質包裝。 該硬質包裝通常在菸草商品之物品全部用完時即被 廢棄。然而，由於該硬質包裝的製造成本較高，因此如專 利文獻1所示的菸草容器般，係考慮再利用硬質包裝。 專利文獻1所示的菸草容器係含有收容菸草商品之内 包裝（inner pack )，該内包裝係收容於可再利用的鉸接蓋 π型硬質包裝内。當菸草商品用完時，係將新的内包裝替換 響 至硬質包裝。 該内包裝係具有内盒，該内盒係被空氣無法流通的薄 膜包裹。 (專利文獻1):曰本特表2005-522386號公報 【發明内容】 (發明所欲解決之課題） 然而，由於近年來有節省資源的要求，因此較佳為省 略内包裝的薄膜包裝。 321271 201006734 但是，薄膜包裝係用以保持内包裝的密封性，防止例 如大氣中的濕氣和臭味等對包裝内的物品造成不良影響。 因此，當省略薄膜包裝時，有降低内包裝内的物品品質之 虞。 本發明乃鑑於上述課題而研創者，其目的係提供一種 能省略薄膜包裝之軟質包裝。 (解決課題的手段） 為了達成上述目的，本發明的軟質包裝係含有：物 品；以及外覆蓋部，係包裹前述物品，並以包裝材料包裹 © 前述物品的周圍而形成；前述外覆蓋部係具有接缝線 (seam line )，該接縫線係重疊前述包裝材料的外周緣彼 此而成者，並將前述外覆蓋部的内部形成為密封空間。 前述軟質包裝係藉由包裝材料之外周緣的重疊，並藉 由包含用以將其内部形成為密封空間之接縫線的外覆蓋部 來包裹物品，因此密封性會變高。 具體而言，前述接縫線係包含：縱接縫，係重疊前述 _ 包裝材料的側緣彼此而形成，並向前述軟質包裝的上下方 向延伸；頂部橫接縫，係重疊前述包裝材料的上端緣彼此 而形成，位於前述軟質包裝的上面，且沿著前述軟質包裝 的寬度方向延伸；以及底部橫接縫，係重疊前述包裝材料 的下端緣彼此而形成，位於前述軟質包裝的下面，且沿著 前述軟質包裝的寬度方向延伸。 由於包裝的三個方向係由前述縱接缝、頂部橫接缝、 以及底部橫接缝所密封，因此可提高包裝内的密封性。 4 321271 201006734 較佳為前述縱接縫、前述頂部橫接缝、以及前述底部 橫接缝係構成為具有鰭片型封條（fin seal)之形態。在此 情形中，前述縱接縫、前述頂部橫接縫、以及前述底部橫 接縫較佳為構成為藉由熱封（heat seal)而獲得。依據此 構成，由於藉由熱封形成縱封條、頂部橫封條、以及底部 橫封條，因此能容易地製造包裝，而能謀求物品的包裝效 率之提升。此外，在採用長條封條的形態的情形中，在密 封包裝材料時能將對於内部物品的熱影響抑制在較低程 ❹度。 此外，較佳為前述物品為棒狀的菸草商品束煙支束， 前述軟質包裝復具備有用以保持前述煙支束之内構架 (inner frame )，且作成長方體形狀。 具體而言，前述内構架係形成圍繞前述煙支束之U字 形狀，且具有後壁、兩側壁、以及開放面。 上述内構架係配置於包裝内，藉此能在從包裝外部施 @加壓縮力時保護菸草商品。此外，亦有助於提升包裝的成 形性。再者，由於能藉由内構架將軟質包裝的形狀維持在 長方體形狀，因此容易將軟質包裝插入至硬質盒體内，而 可輕鬆地進行菸草商品的替換作業。 此外，較佳為前述縱接缝係配置於覆蓋前述内構架的 前述開放面之前述外覆蓋部的部位，且位於一方的前述侧 壁附近。 依據此構成，由於外覆蓋部成為雙重之縱接缝係位於 對應内構架的開放面之部位，因此能補強該部位的外覆蓋 5 321271 201006734 部0 此外，較佳為前述軟質包裝的外覆蓋部復包含有可分 離的分離帶，前述分離帶係構成為沿著跨越前述軟質包裝 的前面、一方的側面、後面、以及另一方的側面之外周延 伸，且位於靠近前述軟質包裝的上面的位置，更佳為前述 軟質包裝的外覆蓋部係於前述分離帶的内面復具備有開封 膠帶，前述開封膠帶係構成為具有從前述外覆蓋部突出之 一端。 依據此包裝，係藉由撕離分離帶而可簡單地將包裝開 © 封。此外，在分離帶的内面配置有開封膠帶的情形中，係 能藉由剝離該開封膠帶而容易地撕離分離帶，而能更簡單 地進行包裝的開封。 (發明之效果） 依據本發明的軟質包裝，由於外覆蓋部内的密封性 高，因此能抑制收容於内部的物品之品質降低。因此，能 省略薄膜包裝，而有助於省資源化。 _ 【實施方式】 第1圖係顯示一實施形態的包裝2。 該包裝2係用以收容濾嘴香煙或香煙等菸草商品之包 裝容器。如第1圖及第2圖所示，包裝2的整體係形成長 方體形狀，且具備有前面20、後面28、一對側面40、42、 上面22、以及底面24。 如第3圖所示，該包裝2係包含棒狀（rod)的菸草 商品4的煙支束以及包裹該煙支束之包裝材料8。該菸草 6 321271 201006734 · · $如4係例如長度為85mm的濾嘴香煙，數量為支。菸 草商°° 4的煙支束係藉由内構架6匯聚成-群組，煙支束 及内構架6係形祕草商品的單元（以下稱為商品單元 14) ° 内構架6係具有與终草商品4的長度相同尺寸的高度 尺寸’且包含有後面1G以及連結於後壁10的兩側緣之-二彳土 12亦即，該内構架6係形成藉由後部及兩側部之 ❹=商向商Γ㈣束之u字形狀，並細 、商00 4並鐽尚包裝2的成形性之作用。 包裝2的包裝材料8係形成矩形狀，藉由商品單元μ 二^繞及f折而形成密封該商品單元14之外覆蓋部 含與商=而Γ如第4圖所示，包裝材料8係捲繞於芦 材料8 I雨：/的長度方向正交的方向之外周周圍。包裝 形成所謂二= = =:前面彼此重叠並黏著’而 φ遍及包裝材料8的上下;;向全=二此種^封條18係 係朝商品單元14的—方，域而延伸’之後’縱封條18 卜方側面彎折（第4圖中的箭頭a方 向），而重疊於外覆蓋部16的前面2〇。 元14分別朝 :方::4 ’包裝材料8係形成從商品單 位％係在其兩侧部被施;出^_ 36。這些突出部 商品單元Μ的上端面二=(gUSSe〇f折後，以覆蓋 覆蓋部16的上面之方式彎折，而分別形成外 此處的彎折係:第 ’、於該外覆蓋部16的上面22 321271 201006734 的中央形成鰭片型封條形態的頂部橫封條26,該頂部橫封 條26係跨越外覆蓋部16的上面全域，並朝商品單元14 的寬度方向延伸。之後，頂部橫封條26係朝後面28(第5 圖中的箭頭B方向）彎折，藉此重疊於外覆蓋部16的上 面22。另一方面，於外覆蓋部16的下面24形成底部橫封 條30，該底部橫封條30亦朝後面28 (第5圖中的箭頭B 方向）彎折，藉此重疊於外覆蓋部16的下面24。如此， 完成包裝2的成形。 更詳細而言，上述縱封條18係在外覆蓋部16的前面 © 20中配置於位於靠近一方側面40的位置之包裝2,從頂部 橫封條26跨越包裝2的上下方向全域之方式縱斷，並延伸 至底部橫封條30。此外，縱封條18的上下兩端部係處於 % 與頂部橫封條26及底部橫封條30疊合（overlap)之狀態。 此外，如第1圖及第2圖所示，包裝2係於包含與長 度方向正交的方向之外周周圍具備有分離帶32,且於該分 離帶32的内面貼附有開封膠帶34。 ^ 分離帶32係位於從外覆蓋部16的上面22稍微朝下 的位置，且由一對分離線38區劃的區域所形成。這些分離 線38係由設置於包裝材料8的脆弱線所提供。若以穿孔排 列形成分離線38，則有損害包裝2的密封性之虞。因此， 作為包裝2的分離線之穿孔排列較為不佳。 開封膠帶34的寬度係比分離帶32還短，其前端34a 係從形成於縱封條18的前端緣之缺口部位18a露出。 第6圖係顯示包裝材料8的内面側。 8 321271 201006734 第6圖中的二點鏈線係顯示藉由包 單元Μ時形成於包震材料8之彎折線。J裹商: 由彎折線所區劃的包裝材料8的各區域係形成:覆= 著 = 二外，，8係於其内面全域具有熱熔 者^膜的熱封層’該熱封層係可形成前述縱封條Μ、頂 部橫封條26、以及底部橫封條3〇。 ，詳細而言，如第6圖所示，包裝材料8的區域係包 含成為外覆蓋部的前面2〇的一部分之前面區域44、依 ©序位於前面區域44的右側之侧面區域46、後面區域料、 側面_50、以及前面區域52。侧面區域46、5〇係形成 外覆蓋部16的側面42、40,後面區域48係形成外覆蓋部 16的後φ 28，前面區域52係形成外覆蓋部16的前面2〇 的剩餘部。 此外’成為外覆盍部16的上面22之上面區域76、78、 80、82、84备分別位於區域44、46、48、5〇、的上側。 ❾另一方面’成為外覆蓋部16的下面24之下面區域54、56、 58、60、62係分別位於區域44、46、48、5〇、52的下侧。 在此’區域44'46、48、50、52係於從上面區域76、 78、80、82、84稍微朝下的位置，含有以橫斷包裝材料8 之方式定位之分離預定區域64。該分離預定區域64係形 成分離帶32 ’於該分離預定區域接著有開封膠帶34。 由前述之說明得知，區域54、44、76之位於第6圖 中左側的左端部18a、以及區域62、52、84之位於第6圖 中右側的右端部18b係彼此重疊，並藉由熱封彼此接著， 9 321271 201006734 藉此形成縱封條18。 此外，如第6圖所示，在包裝材料8的上端緣中，區 域76、78、80、82、84的上端部26a係彼此重疊，並藉由 熱封形成頂部橫封條26。此外，在包裝材料8的下端緣中， 區域54、56、58、60、62的下端部30a係彼此重疊，並藉 由熱封形成底部橫封锋30。 此外，頂部橫封條26及底部橫封條30係分別包含有 縱封條18的上端部及下端部。下面區域56、60及上面區 域78、82内的二點鏈線係顯示在這些區域56、60、78、 © 82中進行前述角板彎折。 購買該包裝2的消費者係抓住開封膠帶34的前端 34a，剝離開封膠帶34。藉此，分離帶34從外覆蓋部16 撕離，由分離帶34去除上侧之外覆蓋部16的部分，而如 第3圖所示將包裝2開封。 之後，開封後的包裝2係裝入於長方體形狀的硬質盒 體86。該硬質盒體86係可使用公知的鉸接蓋型包裝。更 ^ 詳細而言，如第7圖所示，打開硬質盒體86的蓋子（lid) 90時，硬質盒體86係使開口端88露出，包裝2係從硬質 盒體86的開口端88插入至硬質盒體86内。之後，關閉蓋 子90，包裝2 (亦即菸草商品4)係被收容於硬質盒體86 内。 在取出菸草商品4時，消費者係打開蓋子90,透過開 口端88取出菸草商品4。 當菸草商品4全部用完時，廢棄空的包裝2，以與上 10 321271 201006734 述相同的順序將新的包裝2收容於硬質盒體86。如此，本 實施形態的包裝2係可再利用硬質盒體86。此外，由於本 實施形態的包裝2的外覆蓋部16的接縫線係藉由縱封條 18、頂部橫封條26、以及底部橫封條30所形成，因此包 裝2的密封性高。因此，能省略包裝2用的外裝薄膜，而 能符合省資源化的要求。 此外，由於縱封條18、頂部橫封條26、以及底部橫 封條30係具有長條封條的形態，因此在藉由熱封形成這些 ❹封條時，對菸草商品4造成的熱影響很小。此部分在採用 將包裝材料8的内面與外面重疊於封條18、26、30的密封 形態之情形時，係無法避免對菸草商品4造成的熱影響。 此外，縱封條18、頂部橫封條26、以及底部橫封條 30亦可藉由接著劑之接著而形成。 此外，硬質盒體86雖為紙板（card board )或白紙板 (Manila board )等紙製品，但亦可以塑膠或金屬等其他的 _材料來製造。 本發明並未限定於上述一實施形態，係可進行各種變 形。例如本發明的軟質包裝亦可收容長度為95mm左右的 菸草商品20根。 此外，本發明的軟質包裝亦可直接使用而不收容於硬 質盒體。 此外，本發明的軟質包裝亦可使用於收容點心等食品 等其他商品。 【圖式簡單說明】 11 321271 201006734 第1圖係顯示-實施形態的軟質包裝開封前的狀態之 斜視圖。 第2圖係從後方下側觀看第1圖的軟質包裝之斜視 圖。 第3圖係顯示第！圖的軟質包裳開封後的狀態之斜視 圖。 第4圖係顯示彎折軟質包裝的包裝材料而形成縱封條 的狀態之斜視圖。 第5圖係顯示進一步彎折第4圖的包裝材料而形成頂❹ 部橫封條及底部橫封條的狀態之斜視圖。 第6圖係顯示軟質包裝的包裝材料之圖。 第7圖係顯示將第3圖的軟質包裝替換至硬質盒體的 狀態之斜視圖。 【主要元件符號說明】 2 包裝 4 菸草商品 6 内構架 8 包裝材料 10 後壁 12 侧壁 14 商品單元 16 外覆蓋部 18 縱封條 18a 缺口部位 321271 12 201006734 18b 右端部 20 前面 22 上面 24 下面 26 頂部橫封條 26a 上端部 28 後面 30 底部橫封條 ❹32 分離帶 34 開封膠帶 34a 前端 36 突出部位 38 分離線 40 ' 42 側面 44 > 52 前面區域 46、50 側面區域 Q 48 後面區域 54、56、58、60、 62下面區域 64 分離預定區域 76、78、80、82、 84上面區域 86 硬質盒體 88 開口端 90 蓋子 13 321271201006734 VI. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a package, and more particularly to a flexible package. [Prior Art] In the case of a packaging container for accommodating articles, various packaging containers have been developed in consideration of the properties of the articles. When, for example, a filter cigarette or a cigarette is equal to a tobacco product, a hinged lid type rigid package is often used for the packaging of the tobacco product. The rigid package is usually discarded when the articles of the tobacco product are all used up. However, since the manufacturing cost of the rigid package is high, it is considered to reuse the rigid package as in the case of the tobacco container shown in Patent Document 1. The tobacco container disclosed in Patent Document 1 contains an inner pack for containing tobacco products, and the inner package is housed in a reusable hinged lid π-type rigid package. When the tobacco product is used up, the new inner packaging is replaced with a hard package. The inner package has an inner box that is wrapped by a film that is not permeable to air. (Patent Document 1): JP-A-2005-522386 SUMMARY OF INVENTION [Problem to be Solved by the Invention] However, since there has been a demand for resource saving in recent years, it is preferable to omit a film package of an inner package. 321271 201006734 However, film packaging is used to maintain the tightness of the inner packaging to prevent adverse effects such as moisture and odor in the atmosphere. Therefore, when the film package is omitted, there is a problem in that the quality of the articles in the inner package is lowered. The present invention has been made in view of the above problems, and an object thereof is to provide a flexible package capable of omitting film packaging. (Means for Solving the Problem) In order to achieve the above object, a flexible package of the present invention includes: an article; and an outer cover portion that wraps the article and is formed by wrapping a wrapping material around the article; the outer cover portion has A seam line that overlaps the outer peripheral edges of the packaging material and forms the inside of the outer covering portion as a sealed space. The soft package is wrapped by the outer periphery of the packaging material, and the article is wrapped by the outer cover portion including the seam line for forming the inside as a sealed space, so that the sealing property becomes high. Specifically, the seam line includes a longitudinal seam formed by overlapping side edges of the packaging material and extending in a vertical direction of the flexible package, and a top transverse seam overlapping an upper end of the packaging material The edges are formed on the upper side of the soft package and extend along the width direction of the flexible package; and the bottom transverse seam is formed by overlapping the lower end edges of the packaging material, located under the soft package, and along the edge The flexible package extends in the width direction. Since the three directions of the package are sealed by the longitudinal seams, the top transverse seams, and the bottom transverse seams, the sealability within the package can be improved. 4 321 271 201006734 Preferably, the longitudinal seam, the top transverse seam, and the bottom transverse seam are configured to have a fin seal. In this case, the longitudinal slit, the top transverse seam, and the bottom transverse seam are preferably configured to be obtained by a heat seal. According to this configuration, since the vertical seal, the top cross seal, and the bottom cross seal are formed by heat sealing, the package can be easily manufactured, and the packaging efficiency of the article can be improved. Further, in the case of the form of the long seal, the thermal influence on the internal article can be suppressed to a lower degree in the sealing of the packaging material. Further, it is preferable that the article is a rod-shaped bundle of tobacco product bundles, and the soft package has a shape for growing the inner frame of the cigarette bundle and having a rectangular shape. Specifically, the inner frame is formed in a U-shape surrounding the bundle of cigarettes, and has a rear wall, two side walls, and an open surface. The inner frame is disposed in the package, thereby protecting the tobacco product when a compressive force is applied from the outside of the package. In addition, it also helps to improve the formability of the package. Further, since the shape of the flexible package can be maintained in the rectangular parallelepiped shape by the inner frame, it is easy to insert the soft package into the rigid case, and the replacement of the tobacco product can be easily performed. Further, it is preferable that the longitudinal slit is disposed at a portion covering the outer covering portion of the open surface of the inner frame and located in the vicinity of one of the side walls. According to this configuration, since the outer cover portion is a double longitudinal slit located at a portion corresponding to the open surface of the inner frame, the outer cover of the portion can be reinforced. 5 321271 201006734 portion 0. Further, the outer cover portion of the soft package is preferably used. Further comprising a separable separation belt, the separation belt is configured to extend along a front surface of the flexible package, a side surface, a rear surface, and a side surface of the other side, and is located close to the upper surface of the flexible package. More preferably, the outer cover of the flexible package is provided with an opening tape on the inner surface of the separation tape, and the opening tape is configured to have one end protruding from the outer cover. According to this package, the package can be simply opened by tearing off the separation tape. Further, in the case where the opening tape is disposed on the inner surface of the separation tape, the separation tape can be easily peeled off by peeling off the opening tape, and the unsealing of the package can be performed more easily. (Effect of the Invention) According to the flexible package of the present invention, since the sealing property in the outer covering portion is high, it is possible to suppress deterioration in the quality of articles accommodated therein. Therefore, it is possible to omit the film packaging and contribute to resource saving. [Embodiment] Fig. 1 shows a package 2 of an embodiment. The package 2 is a packaging container for containing tobacco products such as filter cigarettes or cigarettes. As shown in Figs. 1 and 2, the package 2 has a rectangular parallelepiped shape and includes a front surface 20, a rear surface 28, a pair of side surfaces 40, 42, an upper surface 22, and a bottom surface 24. As shown in Fig. 3, the package 2 is a bundle of cigarettes comprising a rod of tobacco product 4 and a packaging material 8 encasing the bundle of cigarettes. The tobacco 6 321271 201006734 · · $4, for example, a filter cigarette having a length of 85 mm, the number is a branch. The tobacco bundles of the tobacco merchants ° 4 are aggregated into groups by the inner frame 6, and the units of the cigarette bundles and the inner frame 6 series of secret grass products (hereinafter referred to as commodity units 14) ° the inner frame 6 series has The length of the final product 4 is the same size as the height dimension 'and includes the rear 1G and the two sides 12 joined to the two sides of the rear wall 10, that is, the inner frame 6 is formed by the rear and both sides. ❹ = 商商商 (4) bundle u-shaped shape, and fine, quoting 00 4 and the role of the formability of packaging 2 . The packaging material 8 of the package 2 is formed into a rectangular shape, and the cover portion of the product unit 14 is sealed by the commodity unit μ and the f-fold. As shown in FIG. 4, the packaging material 8 is Winding around the reed material 8 I rain: / The direction in which the length direction is orthogonal to the periphery of the periphery. The package is formed so-called two == =: the front faces overlap and adhere to each other and φ is spread over the upper and lower sides of the packaging material 8; the full-two such seals 18 are attached to the side of the commodity unit 14 and the field is extended 'after' The seal 18 is bent sideways (in the direction of the arrow a in FIG. 4) and overlaps the front face 2 of the outer cover portion 16. Element 14 respectively: square::4 ‘package material 8 is formed from the commodity unit% on both sides thereof; The upper end surface of the protruding unit merchandise unit 二==(gUSSe〇f is folded, and is bent so as to cover the upper surface of the covering portion 16, and the bending system is formed here: the first one, and the outer covering portion 16 The top of the upper surface 22 321271 201006734 forms a top cross-bar 26 of the fin-shaped seal form that spans the entire upper surface of the outer cover 16 and extends toward the width of the merchandise unit 14. Thereafter, the top cross-bar 26 It is bent toward the rear face 28 (the direction of the arrow B in Fig. 5), thereby overlapping the upper surface 22 of the outer cover portion 16. On the other hand, a bottom cross-sealing strip 30 is formed on the lower surface 24 of the outer cover portion 16, which is horizontally The seal 30 is also bent toward the rear face 28 (the direction of the arrow B in Fig. 5), thereby overlapping the lower face 24 of the outer cover portion 16. Thus, the formation of the package 2 is completed. More specifically, the above-mentioned longitudinal seal 18 is externally attached. The package 2 disposed in the front surface 20 of the cover portion 16 at a position close to one side surface 40 is longitudinally broken from the top horizontal seal 26 across the entire vertical direction of the package 2, and extends to the bottom cross-sealing strip 30. Further, the vertical seal strip The upper and lower ends of the 18 The state is overlapped with the top horizontal seal 26 and the bottom horizontal seal 30. Further, as shown in Figs. 1 and 2, the package 2 is provided around the periphery including the direction orthogonal to the longitudinal direction. The separation tape 32 is attached to the inner surface of the separation tape 32. The separation tape 32 is located at a position slightly downward from the upper surface 22 of the outer cover portion 16, and is partitioned by a pair of separation lines 38. These separation lines 38 are provided by the line of weakness provided on the packaging material 8. If the separation line 38 is formed by perforation, the sealing property of the package 2 is impaired. Therefore, the perforation of the separation line of the package 2 is arranged. The width of the opening tape 34 is shorter than that of the separation tape 32, and the front end 34a is exposed from the notch portion 18a formed at the front end edge of the vertical sealing strip 18. Fig. 6 shows the inner surface side of the packaging material 8. 8 321271 201006734 The two-point chain line in Fig. 6 shows the bending line formed on the shock-absorbing material 8 by the package unit. J-wrapped: The area of the packaging material 8 partitioned by the bending line is formed: = two outside, the 8 series has its entire inner surface The heat seal layer of the hot melt film can form the aforementioned longitudinal seal strip, the top cross seal strip 26, and the bottom cross seal strip 3〇. In detail, as shown in Fig. 6, the packaging material 8 The area includes a front surface area 44 that is a front surface of the outer cover, a side area 46 that is located on the right side of the front area 44, a rear area material, a side surface _50, and a front area 52. The side areas 46, 5 The tethers form the side faces 42, 40 of the outer cover portion 16, the rear region 48 forms the rear φ 28 of the outer cover portion 16, and the front region 52 forms the remainder of the front face 2 of the outer cover portion 16. Further, the upper regions 76, 78, 80, 82, and 84 which are the upper faces 22 of the outer covering portion 16 are located on the upper sides of the regions 44, 46, 48, and 5, respectively. On the other hand, the lower regions 54, 56, 58, 60, 62 which are the lower faces 24 of the outer cover portion 16 are located on the lower sides of the regions 44, 46, 48, 5, 52, respectively. Here, the 'area 44' 46, 48, 50, 52 is located at a position slightly downward from the upper regions 76, 78, 80, 82, 84, and includes a predetermined separation region 64 positioned to traverse the packaging material 8. The separation predetermined region 64 is formed into a separation tape 32' in which the opening tape is unsealed. As is apparent from the foregoing description, the left end portion 18a of the region 54, 44, 76 located on the left side in FIG. 6, and the right end portion 18b of the region 62, 52, 84 located on the right side in FIG. 6 overlap each other by The heat seals are then applied to each other, 9 321271 201006734 whereby a longitudinal seal 18 is formed. Further, as shown in Fig. 6, in the upper end edge of the packaging material 8, the upper end portions 26a of the regions 76, 78, 80, 82, 84 are overlapped with each other, and the top cross-sealing strip 26 is formed by heat sealing. Further, in the lower end edge of the packaging material 8, the lower end portions 30a of the regions 54, 56, 58, 60, 62 are overlapped with each other, and the bottom transverse sealing edge 30 is formed by heat sealing. Further, the top transverse seal 26 and the bottom transverse seal 30 respectively include an upper end portion and a lower end portion of the vertical seal strip 18. The two-point chain system in the lower regions 56, 60 and the upper regions 78, 82 are shown in these regions 56, 60, 78, and 82 to perform the aforementioned gusset bending. The consumer who purchased the package 2 grasps the front end 34a of the opening tape 34 and peels off the opening tape 34. Thereby, the separation tape 34 is peeled off from the outer cover portion 16, and the portion of the upper outer cover portion 16 is removed by the separation tape 34, and the package 2 is unsealed as shown in Fig. 3. Thereafter, the unsealed package 2 is attached to a rigid case 86 having a rectangular parallelepiped shape. The rigid case 86 can be a known hinged lid type package. More specifically, as shown in Fig. 7, when the lid 90 of the rigid casing 86 is opened, the rigid casing 86 exposes the open end 88, and the package 2 is inserted from the open end 88 of the rigid casing 86. Up to the hard box 86. Thereafter, the lid 90 is closed, and the package 2 (i.e., the tobacco product 4) is housed in the rigid casing 86. Upon removal of the tobacco product 4, the consumer opens the lid 90 and removes the tobacco product 4 through the open end 88. When the tobacco products 4 are all used up, the empty package 2 is discarded, and the new package 2 is housed in the rigid case 86 in the same order as described in the above 10 321 271 201006734. Thus, the package 2 of the present embodiment can reuse the rigid case 86. Further, since the seam line of the outer covering portion 16 of the package 2 of the present embodiment is formed by the vertical sealing strip 18, the top transverse sealing strip 26, and the bottom transverse sealing strip 30, the sealing property of the package 2 is high. Therefore, the exterior film for the package 2 can be omitted, and the requirements for resource saving can be met. Further, since the longitudinal seal 18, the top transverse seal 26, and the bottom transverse seal 30 are in the form of a long seal, when these seals are formed by heat sealing, the heat influence on the tobacco product 4 is small. This portion is incapable of avoiding the thermal influence on the tobacco product 4 when a sealing form in which the inner surface and the outer surface of the packaging material 8 are overlapped with the seals 18, 26, 30 is employed. Further, the longitudinal seal 18, the top transverse seal 26, and the bottom transverse seal 30 may also be formed by the adhesion of the adhesive. Further, although the rigid case 86 is a paper product such as a cardboard board or a Manila board, it may be made of other materials such as plastic or metal. The present invention is not limited to the above embodiment, and various modifications can be made. For example, the flexible package of the present invention can also contain 20 tobacco products having a length of about 95 mm. Further, the flexible package of the present invention can be used as it is without being contained in a rigid case. Further, the flexible package of the present invention can be used for other foods such as foods such as snacks. [Simple description of the drawings] 11 321271 201006734 Fig. 1 is a perspective view showing the state before the soft package of the embodiment is opened. Fig. 2 is a perspective view of the soft package of Fig. 1 viewed from the lower rear side. Figure 3 shows the first! The squint of the state of the soft pack of the figure after opening. Fig. 4 is a perspective view showing a state in which a packaging material of a flexible package is bent to form a vertical seal. Fig. 5 is a perspective view showing a state in which the packaging material of Fig. 4 is further bent to form a top cross seal and a bottom cross seal. Figure 6 is a diagram showing the packaging material of a soft package. Fig. 7 is a perspective view showing a state in which the flexible package of Fig. 3 is replaced with a rigid case. [Main component symbol description] 2 Packing 4 Tobacco goods 6 Inner frame 8 Packaging material 10 Rear wall 12 Side wall 14 Commodity unit 16 Outer cover 18 Vertical seal 18a Notched part 321271 12 201006734 18b Right end 20 Front 22 Top 24 Lower 26 Top Cross-sealing strip 26a upper end 28 rear 30 bottom cross-sealing strip 32 separation strip 34 opening tape 34a front end 36 projection 38 sub-offline 40 '42 side 44 > 52 front area 46, 50 side area Q 48 rear area 54, 56, 58, 60, 62 lower area 64 separate predetermined area 76, 78, 80, 82, 84 upper area 86 rigid case 88 open end 90 cover 13 321271