201134725 六、發明說明： 【發明所屬之技術領域】 本發明係有關於-種夾鍵帶、及具有夾鏈帶之包裝袋。 【先前技術】 作為用於包裝食品、藥〇 m ^ a 樂。0、醫療品、及雜貨等各種物品 之包裝材，可應用配設有對袋體之開口部進行凹凸嚙人之 2對帶狀夾鏈帶，且可使此嚙合狀態自如開閉之具有錢 帶之包裝袋(以下，有時簡稱為「包裝袋」）。 如此之包裝袋係藉由密封開口部而密封。當將包裳袋開 封時，可自形成於包裝袋之邊緣之凹口等切口或缺口等， 將在、封部分去除’以撕開袋體之基材薄膜從而開封。 近年來，不斷開發有任何人均能簡單開封之包裝袋，且 ^求^於撕開基㈣膜之易開封性優異之包裝 如，參照文獻1:日本專利㈣顧_24彻號 2 : W02008/035494A1)。 合件係㈣合在袋體之鏈帶部，包含沿 齡思由 又之具備易切割性功能之樹脂層。該 ⑽曰層中’使用與鍵帶部不同之樹脂。 向ΓΓΓ:夾鏈帶，係於凸部件以及凹部件之寬度方 ㈣之門1有刀Γ。該切割部係於第一厚壁部與第二厚 辟：a 第—厚壁部及第二厚壁部為薄壁之薄 壁部。藉由該構成，於„ 之薄 時，可將㈣㈣開，m 確保足夠用以解除夹鏈帶之。齒合之袋體之握持部分。 然而’如文獻i之具備易切割性功能之樹脂層，由於具 152736.doc 201134725 有特定之寬度尺寸，而使切割部區域變大。因Λ，存在因 撕開樹月曰層時之力之施加方法，而使切割線曲折導致無法 易於撕開之虞又，於將樹脂層撕開時，存在樹脂層之寬 度方向之兩端的2個部位被撕開之情形，於該情形時，存 在樹脂層變成纖維狀或者條帶狀之切屑，從而產生外觀惡 化’或者切屬阻㈣合而導致無法獲得充分密封等不良情 況之虞。 文獻2之薄壁部亦同樣地存在因具有特定之寬度尺寸而 導致切割線曲折，或者於複數個部位被撕開而產生切屑之 情形* 【發明内容】 本發明之目的在於提供—種可易於開封之线帶、及具 有夾鏈帶之包裝袋。 ' ⑴本發明之夾鏈帶之特徵在於，其係可相互响合之凸 部件以及凹部件分別設置於一對帶狀基部者，且，於上述 對V狀基#中之至少一方之帶狀基部的端部包括切割 部’該士刀割部係、&含相較該帶狀基部之厚 一對厚壁部、設置於該等厚壁部間且相較該厚 尺寸為薄壁之薄壁部、以及突出形成於該薄壁部且具有與 該厚壁部之厚度大致相同之厚度尺寸之凸緣。 (2)又，較佳為，上述凸緣之厚度尺寸（D)係上述凸緣之 自上述薄壁部突出之高度尺寸與上述薄壁部之厚度尺寸之 和’且上述凸緣之厚度尺寸（D)與上述厚壁部之厚度尺寸 (D2)之比（(D)/(D2))係為〇 8以上h2以下。 152736.doc 201134725 (3) 而且，較佳為，上述厚壁部之厚度尺寸（D2)與上述薄 壁部之厚度尺寸（D1)之比（(D2)/(D〗））係為3以上丨2以下。 (4) 又，較佳為，於上述帶狀基部、上述一對厚壁部以 及上述凸緣之一面具有黏合層。 (5) 進而，較佳為，上述黏合層係為熔點低於用於上述 帶狀基部以及上述切割部中之樹脂之聚烯烴系樹脂。 (6) 本發明之具有夾鏈帶之包裝袋之特徵在於，其係於 具有可將封入物封入之開口部之袋體之開口部内面，於使 如上所述之任一本發明記載之夹鏈帶之上述帶狀基部、上 述厚壁部、及上述凸緣之一面黏合之狀態，配置有如上所 述之任一本發明記載之夾鏈帶。 根據本發明之.夾鏈帶，由於包含具有與壁厚部大致相同 之厚度尺寸之凸緣，因此，於使夾鏈帶黏合於袋體時，可 使壁厚部與凸緣黏合於袋體之内面。因而，於將具有失鍵 帶之包裝袋撕開進行開封時，可於拉伸強度小於壁厚部及 凸緣之薄壁部進行切斷，因此，切斷部位為丨個部位從 而不會產生切屑。又’由於利用凸緣定位切割線，因而， 切割線不會曲折，故直線切割性優異且易於撕開。 【實施方式】 以下’基於圖式對本發明之實施形態進行說明。 [具有夾鏈帶之包裝袋之構成] 圖1係表示本發明實施形態之具有夾鏈帶之包裝袋之正 視圖。圖2係圖剖面圖。圖3係將上述具有失鍵帶 之包裝袋之切割部放大表示之剖面圖。 152736.doc 201134725 如圖1及圖2所示，本實施形態之具有夾鏈帶之包裝 (以下，有時簡稱為「包裝袋丨」）係具備袋體2、黏合於袋 體2之内面211A上之夾鏈帶3。 袋體2係重合形成有作為包裝材之基材薄膜21，且於該 基材薄膜2 1之周緣具備側封部22以及頂封部23。頂封部23 係藉由將袋體2之投入封入物之開口部24密封而形成。 側封部22係於頂封部23側之端部分別形成有作為撕裂起 始部之V字形之凹口 25。 作為基材薄膜21不僅限於單層薄膜，既可使用基材層 212上積層有密封膠層211而構成之積層薄膜，亦可根據所 需之性能而使用在基材層212與密封膠層211之間積層有作 為中間層之阻氣層、遮光層、及強度提昇層等而構成之積 層薄膜層。 基材層212不僅可使用雙軸延伸聚丙烯薄膜（〇pp (Oriented P0lypr0pylene)薄膜）’且可較佳地使用雙轴延伸 聚對苯二曱酸乙二酯薄膜（PET(Po丨yethyIene terephtha丨ate) 薄膜）、雙軸延伸聚酯薄膜、雙軸延伸聚醯胺薄膜等，視 需要亦可使用各種工程塑膠薄膜。 後封膠層211可使用低密度聚乙烯、或聚丙烯（Cpp(無延 伸聚丙烯））等= 夾鏈T 3係自一側封部22遍及於另一側封部22，黏合於 開口部24之内面211Α。 夾鏈▼ 3係具備具有凹部件之凹側帶狀基部4〇、與凹側 帶狀基部40之開口部24側之端部連結之切割部44、具有凸 152736.doc 201134725 部件之凸側帶狀基部5〇、以及與凸側帶狀基部％之開口部 2 4側之端部連結之切割部$ 4。 凹側帶狀基部40係具有帶狀基部本體41、作為與該帶狀 基部本體4卜體連結之凹部件的第―鉤部42及第二釣部 43。第一鉤部42及第二鉤部43係相互對向。 第一鉤部42及第二鉤部43係以可解除卡止之方式與凸側 帶狀基部50之頭部53嚙合，從而構成嚙合部6。 、 又，凹側帶狀基部40係具有與内面2Ua對向之袋側面 嫩’且於袋側面佩，積層有作為用於使㈣面術黏合 於内面211A之黏合層之密封層4〇b。 如圖2、圖3所示，切割部44係於自_合部6朝向開 24之方向上，一系列地具有第一厚壁部“a、薄壁部乜、 &緣47、及第二厚壁部45B。 第—厚壁部45A係配置於嚙合部6側，第二厚壁部45b係 配置於開口部24側。 -對第一及第二厚壁部45A、45B係以大於帶狀基部本 體4!之厚度尺寸之方式形成為厚壁。又，第一及第二厚壁 部45A、45B係沿著帶狀基部本體41之長度方向設置為 條狀。 第—厚壁部45A係包括與内面211A對向之第一袋側面 侃卜與第—袋側面4^為相反側之面且與凸側帶狀基 部5〇對向之第一内側面45A2。於第_袋側面判八丨上，^ 層有用於使第一袋側面45A1黏合於内面2UA之密封層 UA3。再者，該密封層45A3係與密封層4〇b連續地形成為 152736.doc -8 - 201134725 —體。 又’第二厚壁部45B亦包含與内面211 a對向之第二袋側 面45B1、與第二袋側面45B1為相反側之面且與凸側帶狀 基5〇對向之第二内側面45B2。於第二袋側面45B1上， 積曰有用於使第二袋側面45B1黏合於内面21ΐΑ之密封層 45B3。 °亥等第一及第二厚壁部45A、45B係具有厚度尺寸 (D2)。 係於一對第一及第二厚壁部45 A、45B間配 且其長度方向之兩端配置於與凹口 25對應之 薄壁部46 置為長條狀 位置上。 又，薄壁部46係包含與内面211A對向之袋側薄壁面 461、與袋側薄壁面461為相反側之面之内側薄壁面。 袋側薄壁面461係配置於相對於第一及第二袋側面45幻、 45B 1於厚度方向上後退至袋體2之内部側之位置上。亦 即’薄壁部46之袋側薄壁面46 1，係相對於第一及第二袋 側面45A1、45B1設置為階差狀，且相對於内面211A具有 特定之間隔’故並未黏合於内面211 a上。 又，内側薄壁面462亦配置於相對於第—内側面45八2及 第一内側面45B2於厚度方向上後退至内面2ua側之位置 上。亦即’薄壁部46之内側薄壁面462，係相對於第一内 側面45A2及第二内側面45B2設置為階差狀。 薄壁部46 ’係經由凸緣47而近似直線狀地連結於第—厚 壁部45A之厚度方向之大致中央與第二厚壁部45B之厚度 I52736.doc 201134725 方向之大致中央。又，薄壁部46係相較帶狀基部本體4ι、 及第一及第二厚壁部45A、45B薄地形成為薄壁。而且， 較佳為，薄壁部46之厚度尺寸（D1)為5〇 μιη以上，更佳為 60 μηι以上。 此處，於薄壁部46之厚度尺寸（D1)未達5〇 pm之情形 時，當使夾鏈帶3黏合於内面211Α時，存在薄壁部46彎折 之情形，於該情形時，占緣47將無法充分黏合於内面 211A ’故存在無法直線狀斷裂之虞。 而且溥壁部46之寬度尺寸較佳為0.5 mm以上5 mm以 下，更佳之範圍為1 mm以上3 mm以下。於薄壁部a之寬 度尺寸未達0.5 mm之情形時，存在難以形成凸緣47之情 形。另一方面，於薄壁部46超過5 mm之情形時，則存在無 法沿著凸緣47導引切割線C(參照圖句之情形。 並且，第一及第二厚壁部、45B之厚度尺寸⑴2)、 與薄壁部46之厚度尺寸（D1)之比（（D2)/(D1))，較佳為3以 上12以下，更佳為5以上1〇以下。 此處，於上述比（(D2)/(D1))小於3之情形時，存在導致 薄壁部46黏合於内表面211A之情形。 另一方面，於上述比（(D2)/(D1))大於12之情形時，則存 在薄壁部46變得易於彎折，從而產生如上所述之問題之 虞。 凸緣47，係包括自袋側薄壁面461突出形成之複數個袋 側凸緣471、自内側薄壁面462突出形成之複數個内側凸緣 472、以及該等袋側凸緣471以及内側凸緣472間之薄壁部 152736.doc •10- 201134725 46。該等袋側凸緣471以及内側凸緣472係分別3個一組地 形成。 該等袋側凸緣47 1與内側凸緣472，係設置於薄壁部46之 寬度方向之大致相同位置上。 袋側凸緣4 7 1 ’係具有與内面2 11A對向之袋側凸緣面 47 1A，且於袋側凸緣面47 1A，積層有用於使袋側凸緣面 471A黏合於内面211A之密封層473。 内側凸緣472，係具有與凸側帶狀基部5〇對向之内側凸 緣面472A。該等袋側凸緣471以及内側凸緣472 ,係與薄壁 部46形成為一體，且沿著第一及第二厚壁部45A、45b之 長度方向形成為長條狀。 凸緣47係具有與第一及第二厚壁部45a、45B大致相同 之厚度尺寸（D) ’且該厚度尺寸（D)係為袋側凸緣471之高 度尺寸（H11)、内側凸緣472之高度尺寸（H12)及薄壁部46 之厚度尺寸（D1)之和。而且，凸緣47之厚度尺寸（D)與第 一或第二厚壁部45A、45B之厚度尺寸（D2)之比（(D)/(D2)) 較佳為0.8以上L2以下，更佳為！。 此處，於上述比（(D)/(D2))大於1.2之情形時，將難以使 第一及第二厚壁部45A、45B黏合於内面211A上。另一方 面，於上述比（(D)/(D2))小於0.8之情形時，則難以使袋側 凸緣471黏合於内面211 a。 並且，凸緣47之厚度尺寸（D)較佳為2〇〇 μηι以上7〇〇 μ]Ώ 以下’更佳為300 μηι以上600 μηι以下。 此處，於凸緣47之厚度尺寸（D)小於2〇〇 μπι之情形時， 152736.doc 201134725 會使薄壁部46黏合於内面211A，故存在不易開封之情形》 Λ側帶狀基部5 〇 ’係包含帶狀基部本體5丨、及經由連結 部52連結於該帶狀基部本體51之剖面近似箭頭（da⑴形狀 之作為凸部件之頭部53。又，凸側帶狀基部5〇係具有帶狀 基部本體5 1 ;以及於帶狀基部本體5丨之開口部24側之端 部’與凹側帶狀基部40之切割部44相同之切割部54。切割 部54，係包括切割部44之一對第一及第二厚壁部45 A、 45B、薄壁部46、凸緣47、與袋側凸緣471以及内側凸緣 472對應之一對第一及第二厚壁部55A、55B、薄壁部56、 凸緣57、以及袋側凸緣57 1及内側凸緣572。 又’切割部54之袋側凸緣57 1以及内側凸緣572，係包含 與切割部44之袋側凸緣面471A以及内側凸緣面472 A對應 之袋側凸緣面571A以及内側凸緣面572A。 又’凸側帶狀基部50 ’係包含與袋側面40A以及第一及 第二袋側面45A1、45B1對應之袋側面50A以及第一及第二 袋側面 55A1、55B1。 而且’於該等袋側面50A、第一及第二袋側面55A1、 55B1以及袋側凸緣面571A，積層有與密封層40B、45A3、 473、45B3對應之密封層 50B、55A3 ' 573、55B3。 凹側帶狀基部40、切割部44、凸側帶狀基部50以及切割 部54中所用之樹脂係結晶性聚烯烴系樹脂。作為如此之結 晶性聚稀烴系樹脂，可列舉低密度聚乙烯（LD〇〇W density))、直鏈狀低密度聚乙烯（LL(linear low density))以 及聚丙烯（PP(polypropylene))等，且亦可為該等樹脂之混 152736.doc 12 201134725 合物。 密封層40B、45A3、473、45B3中所用之樹脂，較佳為 聚烯烴系樹脂。該聚烯烴系樹脂，較佳為熔點低於凹側帶 狀基部40以及切割部44中所用之結晶性聚烯烴系樹脂。 又’密封層50B、55A3 ' 573、55B3中所用之樹脂亦較佳 為聚烯烴系樹脂，且較佳為熔點低於凸側帶狀基部5〇以及 切割部54中所用之結晶性聚烯烴系樹脂。 [夾鏈帶以及具有夾鏈帶之包裝袋之製造] 製造夾鏈帶3，係可藉由共擠出成形法而一體化獲得。 若藉由共擠出法成形，則可使製造步驟簡化，且可使製造 成本降低，從而可連續穩定地製造夾鏈帶3。 繼而，使用基材薄膜21、夾鏈帶3，利用具有夾鏈帶之 三向密封製袋機等製造包裝袋1。 具有夾鏈帶之三向密封製袋機，係使自鏈帶送出部送出 之夾鏈帶3位於例如自包裝材送出部送出之基材薄膜以之 間。接著，藉由-對密封棒，而相互擠壓基材薄膜2ι、與 凹側帶狀基部40、切割部44、凸側帶狀基部5〇以及切割部 54，使夾鏈帶3與基材薄膜21黏合。 邋而董十著基材薄膜2 1之搬送方向，以特定間隔將搬送 之基材薄膜21熱黏合，形成側封部22,其後，於側封部22 上進行切斷’形成包裝袋1。 再者於化成包裝袋1之側封部22時，實施用以使夾鏈 帶3破碎之點密封步驟。 [具有夾鍵帶之包裝袋之開封] 152736.doc -13- 201134725 其次’對本實施形態之包裝⑹之開封方法進行說明。 圖4係將具有夹鍵帶之包裝袋之凹口部分附 示之正視圖。 ％衣 於進行開料，將凹σ25之開σ部洲之基材薄膜㈣ 封入物側之基材薄膜21握持著，以凹口 25為撕裂起始部， 以朝刖後撕開之方式進行開封。此處’由於凸緣47係黏八 於内面2UA，因此，應力將集中於拉伸強度較小之薄壁： 牝、56,從而於該應力集中之薄壁部“、兄被切斷。故 而因於應力集中之薄壁部46、56被切斷，故僅於^個部 位被切斷。亦即’切割線C(-點鏈線）僅為"条。而且，由 於藉由凸緣47 ' 57來進行定位，因此，切割線c成為直線 狀而不會產生曲折。 其後，可藉由解除夾鏈帶3之嚙合部6，而使包裝袋 封。於重新密封之情形時，使第—鉤部42及第二鉤部“與 頭部53嚙合，從而使嚙合部6成為嚙合狀態即可。 (實施形態之效果） 根據如上所述之夾鏈帶3以及包裝袋丨，可發揮以下所示 之作用效果。 由於夾鏈帶3之切割部44，設置有具有與第一及第二厚 壁部45A、45B之厚度尺寸⑴2)大致相同之厚度尺寸（D)之 凸緣47，因此，於使袋體2黏合於夾鏈帶3時，可使第一及 第二厚壁部45A、45B與凸緣47黏合於内面2nA ^因此， 當撕開包裝袋1進行開封時，應力將集中於拉伸強度較小 之薄壁部46，從而可於該薄壁部46進行切斷。因而，切斷 152736.doc • 14 · 201134725 部位成為1個部位，從而不會產生切屑。 又’當將包裝袋1撕開時，由於利用凸緣47來定位切割 線c，因此，切割線不會產生曲折，可獲得直線切割性， 從而易於撕開。 又，由於以夾持薄壁部46之方式，亦於袋側凸緣471之 相反側設置有内側凸緣472，因此，可於薄壁部牝上可靠 地進行切斷。亦即，不會於袋側凸緣471或者内側凸緣472 上被切斷。 進而，由於將薄壁部46配置於相對第一及第二袋側面 45A1、45B1後退之位置上，因此，薄壁部扑不會黏合於 内面211A ’故可易於將薄壁部μ、56切斷。 繼而，由於凸緣47之厚度尺寸（D)與第一及第二厚壁部 45A、45B之厚度尺寸（D2)之比（（D)/(D2))設為〇 8以上1 2以 下，因此，可使袋側凸緣471與第一及第二厚壁部45A、 45B良好地黏合於内面211 a。 又，由於凸緣47之厚度尺寸（D)與第一及第二厚壁部 45 A、45B之厚度尺寸（D2)之比設於上述範圍内，因此，可 防止製袋時薄壁部46黏合於内面211A。又，於製袋時之點 密封步驟中，亦可防止破碎部分中產生針孔等。 進而，由於第一及第二厚壁部45A、45B之厚度尺寸 (D2)與薄壁部46之厚度尺寸（D1)之比（(D2)/(D1))設為3以上 12以下，因此，亦可防止薄壁部46黏合於内面2nA，以及 薄壁部46產生彎折。 進而’由於薄壁部46之厚度尺寸（D1)設為50 μηι以上， I52736.doc -15- 201134725 因此’於使夾鏈帶3黏合於内面211A時，可防止薄壁部46 產生彎折。因此，可使袋側凸緣471良好地黏合於内面 211A。因而，將包裝袋1撕開時，直線切割性優異。 又，由於將熔點低於凹側帶狀基部4〇以及切割部44中所 用之Μ月曰之聚稀煙系樹脂’用作密封層、45A3、 45Β3、473中所用之樹脂，因此，製袋時可於相對之低溫 下使夾鏈帶3黏合於袋體2。因此，可抑制構成袋體2之基 材薄膜21之基材層212劣化。 而且，用於凹側帶狀基部40之樹脂，係為結晶性聚烯烴 系樹脂，且該結晶性聚烯烴系樹脂係為聚丙烯等特定樹 脂’因此’易於使凸緣47成形。 由於將夾鏈帶3設置於袋體2，故可製成不會產生切屑、 直線切割性優異且可易於斷裂之包裝袋j。 再者，即便於夹鏈帶3之凸側帶狀基部5〇之切割部Η 中’亦可獲得與切割部44相同之效果。 (變形例） 再者，本發明並非限定於上述實施形態，且，勿庸置 疑，於能夠達成本發明之目的以及效果之範圍内之變形或 改良係包含於本發明之内容中β χ，實施本發明時之具體 結構以及形狀等’當然可於能夠達成本發明之目的以^效 果之範圍内，製成其他結構或形狀等。 > 圖5’係表示其他實施形態之具有夾鏈帶之包褒袋之剖 例如，本實施形態 係表示薄壁部46以近似直線狀連結 152736.doc 201134725 第一及第二厚壁部45A、45B間之構成，但如圖5所示，亦 可设置為波狀等非直線狀。例如，連結於第一厚壁部45 a 之薄壁部46C之一端部’可配置於内面2丨丨a側，連結於第 二厚壁部45B之薄壁部46C之另一端部，可配置於袋體2之 内部側、即凸側帶狀基部50側。 又，雖然表示了凹側帶狀基部4〇介隔密封層40B黏合於 内面211 A之構成，但凹側帶狀基部4〇亦可直接黏合於内面 211A 〇 即便於將如此構成之包裝袋1切斷之情形時，亦由於凸 緣47黏合於内面211A，而可使應力集中於拉伸強度小之薄 壁部46，從而於該薄壁部46進行切斷。 而且，雖然表不了將袋側凸緣47丨以及内側凸緣472設置 於薄壁部46之構成，但薄壁部46亦可不設置内側凸緣 472，而僅设置袋側凸緣47丨，從而將薄壁部46設置於凸側 帶狀基部50側。亦即，亦可無需使内側薄壁面462相對於 第内側面45A2及第二内側面45B2後退至内面211 A側， 而是以使内側薄壁面462相對於第一内側面45A2及第二内 側面45B2配置於大致同一面上之方式，設置薄壁部 又，圖2及圖3，係表示將袋側凸緣47丨以及内側凸緣 472’以3個為一組設置於薄壁部乜之構成，但袋側凸緣 471以及内側凸緣472既可設置一個亦可設置複數個。 而且，雖然表不了袋側凸緣47丨與内側凸緣Ο]以3個為 、、且。又置之構成，但袋側凸緣47 i之數量與内側凸緣472之 數量亦可不同。 152736.doc •17· 201134725 進而，雖然表示了於凹側帶狀基部4〇中設置切判部4[ 且亦於凸側帶狀基部5G中設置切割部M之構成，但亦可僅 於凹側帶狀基部40或者凸側帶狀基部50之任一者中設置切 割部44或者切割部54。201134725 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a type of clip belt and a package having a zipper tape. [Prior Art] As a packaged food, medicine 〇 m ^ a music. 0. Packaging materials for various items such as medical products and miscellaneous goods can be applied with a pair of belt-shaped zipper tapes that are embossed to the opening of the bag body, and the meshing state can be opened and closed freely. The packaging bag (hereinafter sometimes referred to simply as "packaging bag"). Such a package is sealed by sealing the opening. When the bag is opened, a slit or a notch such as a notch formed at the edge of the bag may be removed, and the sealing portion may be removed to tear the base film of the bag to be opened. In recent years, we have continuously developed a packaging bag that can be easily opened by anyone, and it is easy to open the package of the tear-open base film. For example, refer to Document 1: Japanese Patent (4) Gu _24 Cher No. 2: W02008/ 035494A1). The fitting system (4) is attached to the chain portion of the bag body, and includes a resin layer having an easy-cutting function along the age. In the (10) enamel layer, a resin different from the key portion is used. Directional ΓΓΓ: The zipper tape is attached to the width of the male part and the concave part. (4) The door 1 has a knives. The cutting portion is formed by the first thick portion and the second thick portion: a first thick portion and a second thick portion are thin wall portions. With this configuration, when the thickness of „ is thin, (4) and (4) can be opened, m ensures that the grip portion of the bag body of the zipper tape is sufficiently removed. However, the resin having the easy-cutting function as in document i The layer has a specific width dimension due to the specific width dimension of 152736.doc 201134725. Because of the entanglement, there is a method of applying force when tearing the tree layer, so that the cutting line is tortuous and cannot be easily torn. Further, when the resin layer is torn, two portions of both ends of the resin layer in the width direction are torn, and in this case, the resin layer becomes a fibrous or strip-shaped chip, thereby generating If the appearance is deteriorated or the resistance is (4), the problem of insufficient sealing or the like may not be obtained. The thin wall portion of the document 2 also has a meandering of the cutting line due to the specific width dimension, or is torn in a plurality of parts. [Invention] The object of the present invention is to provide a tape which can be easily opened and a packaging bag having a zipper tape. ' (1) The zipper tape of the present invention is characterized by The convex member and the concave member which are mutually responsive to each other are respectively disposed on the pair of belt-shaped bases, and the end portion of the strip-shaped base portion of at least one of the pair of V-shaped bases includes a cutting portion And a pair of thick portions having a thicker portion than the strip-shaped base portion, a thin wall portion provided between the thick portions and thinner than the thick portion, and a protrusion formed on the thin portion Further, the flange has a thickness similar to the thickness of the thick portion. (2) Further, preferably, the thickness dimension (D) of the flange is a height dimension of the flange protruding from the thin portion. The ratio of the thickness dimension of the thin portion to the thin portion and the ratio of the thickness dimension (D) of the flange to the thickness dimension (D2) of the thick portion ((D)/(D2)) is 〇8 or more and h2 or less. 152736.doc 201134725 (3) Further, preferably, the ratio (D2)/(D) of the thickness dimension (D2) of the thick portion to the thickness dimension (D1) of the thin portion is 3 Further, it is preferable that the adhesive layer is provided on the strip-shaped base, the pair of thick portions, and one of the flanges. (5) Preferably, the adhesive layer is a polyolefin resin having a melting point lower than that of the resin used in the tape-shaped base portion and the cut portion. (6) The package having the zipper tape of the present invention is characterized in that The strip-shaped base portion, the thick portion, and the flange of the zipper tape according to any one of the above-described embodiments of the present invention are provided on the inner surface of the opening of the bag body having the opening in which the seal is sealed. In the state in which one of the faces is bonded, any of the zipper tapes according to the present invention described above is disposed. According to the present invention, since the zipper tape includes a flange having a thickness substantially the same as that of the thick portion, When the zipper tape is adhered to the bag body, the wall thickness portion and the flange can be adhered to the inner surface of the bag body. Therefore, when the bag with the key loss belt is torn open for opening, the tensile strength can be less than the wall thickness. Since the thin portion of the portion and the flange is cut, the cut portion is a single portion so that no chips are generated. Further, since the cutting line is positioned by the flange, the cutting line is not bent, so that the straight cut property is excellent and the tearing is easy. [Embodiment] Hereinafter, embodiments of the present invention will be described based on the drawings. [Composition of a packaging bag having a zipper tape] Fig. 1 is a front view showing a packaging bag having a zipper tape according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the figure. Fig. 3 is an enlarged cross-sectional view showing the cut portion of the above-described package having the key-breaking belt. 152736.doc 201134725 As shown in FIG. 1 and FIG. 2, the package having the zipper tape of the present embodiment (hereinafter sometimes simply referred to as "package 丨") is provided with a bag body 2 and bonded to the inner surface 211A of the bag body 2. The upper zipper belt 3. The bag body 2 is formed by superposing a base film 21 as a packaging material, and a side seal portion 22 and a top seal portion 23 are provided on the periphery of the base film 21. The top sealing portion 23 is formed by sealing the opening portion 24 of the bag body 2 into which the sealing member is placed. The end portion of the side seal portion 22 on the side of the top seal portion 23 is formed with a V-shaped notch 25 as a tear start portion. The base film 21 is not limited to a single layer film, and a laminated film formed by laminating a sealant layer 211 on the base material layer 212 may be used, and the base material layer 212 and the sealant layer 211 may be used depending on the desired properties. A laminated film layer composed of a gas barrier layer, a light shielding layer, a strength promoting layer, and the like as an intermediate layer is laminated. As the substrate layer 212, not only a biaxially oriented polypropylene film (〇pp (Oriented P0lypr0pylene) film) but also a biaxially oriented polyethylene terephthalate film (PET (Po丨yethy Iene terephtha丨) can be preferably used. Ate) Film), biaxially stretched polyester film, biaxially stretched polyamide film, etc., and various engineering plastic films can be used as needed. The back sealant layer 211 can be made of low-density polyethylene or polypropylene (Cpp (non-stretched polypropylene)) or the like = zipper T 3 is applied from the one side seal portion 22 to the other side seal portion 22, and is bonded to the opening portion. Inside the 24, 211 Α. The zipper ▼ 3 is provided with a concave side belt-shaped base portion 4 having a concave member, a cutting portion 44 coupled to an end portion of the concave side belt-like base portion 40 on the opening portion 24 side, and a convex side belt having a convex portion 152736.doc 201134725 The base portion 5A and the cut portion $4 connected to the end portion on the opening portion 24 side of the convex side band-shaped base portion %. The concave side belt-like base portion 40 has a belt-shaped base portion 41, a first hook portion 42 and a second fishing portion 43 as concave members that are coupled to the belt-like base portion. The first hook portion 42 and the second hook portion 43 are opposed to each other. The first hook portion 42 and the second hook portion 43 are engaged with the head portion 53 of the convex side belt-like base portion 50 so as to be detachable, thereby constituting the engaging portion 6. Further, the concave side belt-like base portion 40 has a side surface of the bag facing the inner surface 2Ua and is attached to the side of the bag, and a sealing layer 4b is provided as an adhesive layer for bonding the (4) surface to the inner surface 211A. As shown in FIG. 2 and FIG. 3, the cutting portion 44 is formed in the direction from the opening portion 6 toward the opening 24, and has a series of first thick portion "a, thin portion 乜, & edge 47, and The second thick portion 45B is disposed on the side of the meshing portion 6, and the second thick portion 45b is disposed on the side of the opening portion 24. - The first and second thick portions 45A, 45B are larger than The thickness of the strip-shaped base body 4! is formed into a thick wall. Further, the first and second thick portions 45A and 45B are provided in a strip shape along the longitudinal direction of the strip-shaped base body 41. The first thick portion The 45A system includes a first inner side surface opposite to the inner side surface 211A and a first inner side surface 45A2 opposite to the convex side belt-shaped base portion 5b. On the gossip, the layer has a sealing layer UA3 for bonding the first bag side surface 45A1 to the inner surface 2UA. Further, the sealing layer 45A3 is continuously formed with the sealing layer 4〇b as 152736.doc -8 - 201134725 Further, the second thick portion 45B also includes a surface opposite to the second pocket side surface 45B1 opposed to the inner surface 211a and the second pocket side surface 45B1, and the convex side strip-shaped base 5 The second inner side surface 45B2 of the opposite side is provided with a sealing layer 45B3 for bonding the second bag side surface 45B1 to the inner surface 21A on the second bag side surface 45B1. First and second thick wall portions 45A, 45B The thickness dimension (D2) is set between the pair of first and second thick portions 45 A and 45B, and both ends in the longitudinal direction are disposed in the thin portion 46 corresponding to the recess 25, and are elongated. Further, the thin portion 46 includes a bag-side thin wall surface 461 that faces the inner surface 211A and an inner thin surface that faces the bag-side thin wall surface 461. The bag-side thin wall surface 461 is disposed. With respect to the first and second pocket side faces 45, 45B 1 retreats to the inner side of the bag body 2 in the thickness direction. That is, the bag side thin wall surface 46 1 of the thin portion 46 is opposite to The first and second bag side faces 45A1, 45B1 are disposed in a stepped shape and have a specific spacing with respect to the inner face 211A, so they are not bonded to the inner face 211a. Further, the inner thin wall face 462 is also disposed relative to the first The inner side surface 45 VIII and the first inner side surface 45B2 retreat to a position on the inner surface 2ua side in the thickness direction, that is, inside the thin portion 46. The side thin wall surface 462 is formed in a stepped shape with respect to the first inner side surface 45A2 and the second inner side surface 45B2. The thin portion 46' is linearly coupled to the first thick portion 45A via the flange 47. The substantially central portion of the thickness direction is substantially the center of the thickness of the second thick portion 45B I52736.doc 201134725. Further, the thin portion 46 is compared with the strip-shaped base body 4i and the first and second thick portions 45A, 45B. The thin terrain becomes thin. Further, it is preferable that the thickness dimension (D1) of the thin portion 46 is 5 〇 μη or more, and more preferably 60 μη or more. Here, when the thickness dimension (D1) of the thin portion 46 is less than 5 pm, when the zipper tape 3 is bonded to the inner surface 211 ,, there is a case where the thin portion 46 is bent, in which case, The edge 47 will not be able to adhere sufficiently to the inner surface 211A', so there is a possibility that it cannot be broken linearly. Further, the width of the wall portion 46 is preferably 0.5 mm or more and 5 mm or less, more preferably 1 mm or more and 3 mm or less. In the case where the width dimension of the thin portion a is less than 0.5 mm, there is a case where it is difficult to form the flange 47. On the other hand, when the thin portion 46 exceeds 5 mm, there is a case where the cutting line C cannot be guided along the flange 47 (refer to the case of the figure. Also, the thickness of the first and second thick portions, 45B) The ratio of the dimension (1) 2) to the thickness dimension (D1) of the thin portion 46 ((D2) / (D1)) is preferably 3 or more and 12 or less, more preferably 5 or more and 1 or less. Here, in the case where the above ratio ((D2) / (D1)) is less than 3, there is a case where the thin portion 46 is bonded to the inner surface 211A. On the other hand, when the above ratio ((D2) / (D1)) is larger than 12, the thin portion 46 becomes easy to be bent, resulting in the problem as described above. The flange 47 includes a plurality of bag side flanges 471 protruding from the bag side thin wall surface 461, a plurality of inner side flanges 472 protruding from the inner thin wall surface 462, and the bag side flanges 471 and the inner side. Thin wall portion 152736.doc •10- 201134725 46 between the flanges 472. The bag side flanges 471 and the inner side flanges 472 are formed in groups of three. The bag side flanges 47 1 and the inner side flanges 472 are provided at substantially the same position in the width direction of the thin portion 46. The bag side flange 4 7 1 ' has a bag side flange surface 47 1A opposed to the inner surface 2 11A, and is formed on the bag side flange surface 47 1A for bonding the bag side flange surface 471A to the inner surface 211A. Sealing layer 473. The inner flange 472 has an inner convex surface 472A opposed to the convex side belt-like base 5'. The bag side flanges 471 and the inner side flanges 472 are integrally formed with the thin portion 46, and are formed in an elongated shape along the longitudinal direction of the first and second thick portions 45A and 45b. The flange 47 has substantially the same thickness dimension (D) ' as the first and second thick portions 45a, 45B, and the thickness dimension (D) is the height dimension (H11) of the bag side flange 471, and the inner flange The sum of the height dimension (H12) of 472 and the thickness dimension (D1) of the thin wall portion 46. Further, the ratio (D) / (D2) of the thickness dimension (D) of the flange 47 to the thickness dimension (D2) of the first or second thick portion 45A, 45B is preferably 0.8 or more and L2 or less, more preferably for! . Here, when the above ratio ((D)/(D2)) is more than 1.2, it is difficult to bond the first and second thick portions 45A, 45B to the inner surface 211A. On the other hand, when the above ratio ((D)/(D2)) is less than 0.8, it is difficult to bond the bag side flange 471 to the inner surface 211a. Further, the thickness (D) of the flange 47 is preferably 2 〇〇 μη or more and 7 〇〇 μ] Ώ or less, and more preferably 300 μηι or more and 600 μηι or less. Here, when the thickness dimension (D) of the flange 47 is less than 2 〇〇μπι, 152736.doc 201134725 causes the thin portion 46 to be adhered to the inner surface 211A, so that there is a case where the opening is not easy to open. The 〇' system includes a belt-shaped base body 5A and a cross-sectional approximate arrow (a head portion 53 as a convex member in the shape of da(1)) connected to the belt-shaped base portion 51 via the connecting portion 52. Further, the convex side belt-shaped base portion 5 The strip-shaped base body 51; and the end portion 'on the opening portion 24 side of the strip-shaped base body 5'' is the same as the cut portion 44 of the concave side strip-shaped base portion 40. The cutting portion 54 includes a cutting portion. One of the first and second thick portions 45 A, 45B, the thin portion 46, the flange 47, the bag side flange 471, and the inner flange 472, one pair of the first and second thick portions 55A 55B, the thin portion 56, the flange 57, and the bag side flange 57 1 and the inner flange 572. The bag side flange 57 1 and the inner flange 572 of the cutting portion 54 are included with the cutting portion 44. The bag side flange surface 471A and the inner side flange surface 472 A correspond to the bag side flange surface 571A and the inner flange surface 572A. The side belt-shaped base 50' includes a bag side surface 50A corresponding to the bag side surface 40A and the first and second bag side surfaces 45A1, 45B1, and first and second bag side surfaces 55A1, 55B1. The first and second bag side faces 55A1, 55B1 and the bag side flange face 571A are laminated with sealing layers 50B, 55A3' 573, 55B3 corresponding to the seal layers 40B, 45A3, 473, and 45B3. The concave side band-shaped base portion 40, the cut portion 44. A resin-based crystalline polyolefin-based resin used for the convex-side strip-shaped base portion 50 and the dicing portion 54. Examples of such a crystalline polyolefin resin include low-density polyethylene (LD 〇〇 W density). Linear low density polyethylene (LL) and polypropylene (PP), etc., and may also be a mixture of the resins 152736.doc 12 201134725. The resin used in the sealing layers 40B, 45A3, 473, and 45B3 is preferably a polyolefin resin. The polyolefin-based resin preferably has a melting point lower than that of the concave side belt-like base portion 40 and the crystalline polyolefin-based resin used in the cut portion 44. Further, the resin used in the 'sealing layer 50B, 55A3' 573, 55B3 is also preferably a polyolefin resin, and preferably has a melting point lower than that of the convex side belt-like base 5〇 and the crystalline polyolefin used in the cutting portion 54. Resin. [Manufacture of zipper tape and packaging bag having zipper tape] The zipper tape 3 is produced by being integrally obtained by a co-extrusion molding method. When formed by the co-extrusion method, the manufacturing steps can be simplified, and the manufacturing cost can be lowered, so that the zipper tape 3 can be continuously and stably produced. Then, the base film 21 and the zipper tape 3 are used, and the packaging bag 1 is produced by a three-way sealing bag making machine having a zipper tape or the like. The three-way sealing bag making machine having a zipper tape is such that the zipper tape 3 fed from the tape take-out portion is located, for example, between the substrate film fed from the package feeding portion. Next, the base strip film 2, the concave side strip-shaped base portion 40, the cut portion 44, the convex side strip-like base portion 5〇, and the cut portion 54 are mutually pressed by the pair of sealing bars to make the zipper tape 3 and the substrate The film 21 is bonded. Then, the substrate film 21 to be conveyed is thermally bonded at a predetermined interval to form the side seal portion 22, and then cut on the side seal portion 22 to form the package 1 . Further, when the side seal portion 22 of the packaging bag 1 is formed, a point sealing step for breaking the zipper tape 3 is carried out. [Unpacking of the package with the clip tape] 152736.doc -13- 201134725 Next, the unsealing method of the package (6) of the present embodiment will be described. Figure 4 is a front elevational view showing the notched portion of the package having the clip belt. The coating is carried out, and the base film 21 of the substrate film (4) on the side of the sealing surface of the σ25 is opened, and the notch 25 is used as the tearing starting portion to be torn away after the smashing. The way to open the envelope. Here, since the flange 47 is bonded to the inner surface 2UA, the stress will be concentrated on the thin wall having a small tensile strength: 牝, 56, so that the thin portion of the stress concentration ", the brother is cut off. Since the thin-walled portions 46 and 56 where the stress is concentrated are cut, they are cut only at a certain portion. That is, the 'cutting line C (-dot chain line) is only a strip. Moreover, due to the flange 47' 57 is positioned, so that the cutting line c is linear and does not become meandering. Thereafter, the packaging portion 6 of the zipper tape 3 can be released to seal the package. In the case of resealing, The first hook portion 42 and the second hook portion are "engaged with the head portion 53 so that the engaging portion 6 is brought into an engaged state. (Effects of the embodiment) According to the zipper tape 3 and the package 丨 described above, the following effects can be exhibited. Since the cutting portion 44 of the zipper tape 3 is provided with a flange 47 having a thickness dimension (D) substantially the same as the thickness dimension (1) 2) of the first and second thick portion 45A, 45B, the bag body 2 is thereby provided. When the zipper tape 3 is bonded, the first and second thick portions 45A, 45B and the flange 47 can be bonded to the inner surface 2nA. Therefore, when the package 1 is opened, the stress is concentrated on the tensile strength. The thin portion 46 is small so that the thin portion 46 can be cut. Therefore, the cut 152736.doc • 14 · 201134725 part becomes one part, so that no chips are generated. Further, when the packaging bag 1 is torn, since the cutting line c is positioned by the flange 47, the cutting line is not bent, and the straight cut property can be obtained, so that it is easy to tear. Further, since the inner flange 472 is provided on the opposite side of the bag side flange 471 so as to sandwich the thin portion 46, the thin portion can be reliably cut. That is, it is not cut off on the bag side flange 471 or the inner side flange 472. Further, since the thin portion 46 is disposed at a position retreating from the first and second pocket side faces 45A1, 45B1, the thin portion is not bonded to the inner surface 211A', so that the thin portions μ, 56 can be easily cut. Broken. Then, the ratio (DD/(D2)) of the thickness dimension (D) of the flange 47 to the thickness dimension (D2) of the first and second thick portions 45A and 45B is 〇8 or more and 12 or less. Therefore, the bag side flange 471 and the first and second thick portions 45A and 45B can be favorably bonded to the inner surface 211a. Further, since the ratio of the thickness dimension (D) of the flange 47 to the thickness dimension (D2) of the first and second thick portion 45A, 45B is set within the above range, the thin portion 46 at the time of bag making can be prevented. Adhered to the inner surface 211A. Further, in the sealing step at the time of bag making, it is possible to prevent pinholes and the like from being generated in the crushed portion. Further, since the ratio (D2)/(D1) of the thickness dimension (D2) of the first and second thick portions 45A and 45B to the thickness dimension (D1) of the thin portion 46 is set to 3 or more and 12 or less, It is also possible to prevent the thin portion 46 from being bonded to the inner surface 2nA and the thin portion 46 to be bent. Further, since the thickness dimension (D1) of the thin portion 46 is 50 μηι or more, I52736.doc -15-201134725 Therefore, when the fastener tape 3 is bonded to the inner surface 211A, the thin portion 46 can be prevented from being bent. Therefore, the bag side flange 471 can be well bonded to the inner surface 211A. Therefore, when the packaging bag 1 is torn, the linear cutting property is excellent. Further, since the melting point is lower than the concave side belt-like base portion 4〇 and the polystyrene resin used in the cut portion 44 is used as the sealing layer, the resin used in 45A3, 45Β3, and 473, the bag is formed. The zipper tape 3 can be bonded to the bag body 2 at a relatively low temperature. Therefore, deterioration of the base material layer 212 of the base film 21 constituting the bag body 2 can be suppressed. Further, the resin used for the concave side belt-like base portion 40 is a crystalline polyolefin resin, and the crystalline polyolefin resin is a specific resin such as polypropylene. Therefore, the flange 47 is easily formed. Since the zipper tape 3 is provided in the bag body 2, it is possible to produce a packaging bag j which does not cause chipping, is excellent in linear cutting property, and can be easily broken. Further, even in the cut portion ’ of the convex side belt-like base portion 5 of the zipper tape 3, the same effect as that of the cut portion 44 can be obtained. (Modifications) The present invention is not limited to the above-described embodiments, and it is needless to say that modifications or improvements within the scope of the object and effect of the present invention are included in the content of the present invention. The specific structure, shape, and the like of the present invention can of course be made into other structures or shapes within the scope of the effects of the present invention. > Fig. 5' is a cross-sectional view showing a bag having a zipper tape according to another embodiment. For example, in the present embodiment, the thin portion 46 is connected in a substantially straight line. 152736.doc 201134725 First and second thick portions 45A The configuration between the 45B and the 45B may be a non-linear shape such as a wave shape as shown in FIG. 5 . For example, one end portion 'connected to the thin portion 46C of the first thick portion 45 a may be disposed on the inner surface 2丨丨a side and connected to the other end portion of the thin portion 46C of the second thick portion 45B, and may be disposed On the inner side of the bag body 2, that is, on the side of the convex side band-like base portion 50. Further, although the configuration is shown in which the concave side belt-like base portion 4 〇 is interposed between the sealing layer 40B and the inner surface 211 A, the concave side belt-shaped base portion 4 〇 can be directly bonded to the inner surface 211A, even in the packaging bag 1 thus constructed. In the case of the cutting, since the flange 47 is bonded to the inner surface 211A, the stress can be concentrated on the thin portion 46 having a small tensile strength, and the thin portion 46 can be cut. Further, although the bag side flange 47A and the inner flange 472 are not provided in the thin portion 46, the thin portion 46 may not be provided with the inner flange 472, and only the bag side flange 47丨 may be provided. The thin portion 46 is provided on the side of the convex side belt-like base portion 50. In other words, the inner thin wall surface 462 does not need to be retracted to the inner surface 211 A side with respect to the inner side surface 45A2 and the second inner side surface 45B2, but the inner thin wall surface 462 is opposite to the first inner side surface 45A2 and the second side. The inner side surface 45B2 is disposed on substantially the same surface, and the thin portion is provided. In FIGS. 2 and 3, the bag side flange 47A and the inner side flange 472' are provided in a thin portion. The configuration of the crucible, but the bag side flange 471 and the inner side flange 472 may be provided in one or a plurality. Further, although the bag side flange 47 丨 and the inner side flange Ο are not shown, three are used. Further, the number of the bag side flanges 47 i and the number of the inner side flanges 472 may be different. 152736.doc •17·201134725 Further, although the cutting portion 4 is provided in the concave side belt-like base portion 4, and the cutting portion M is also provided in the convex side belt-shaped base portion 5G, it may be formed only in the concave portion. A cutting portion 44 or a cutting portion 54 is provided in any of the side belt-shaped base portion 40 or the convex side belt-shaped base portion 50.
f實施例J 以下’列舉實施例及比較例，更具體地說明本發明，但 本發明不受實施例等内容之任何限定。 圖6,係表示比較例】之爽鍵帶之剖面圖，圖7係表示比 較例2之夾鏈帶之剖面圖。 (實施例1) 實施例1之夾鏈帶係使用以下之構成材料，#由市售之 擠出機而擠出成形。可使精得之夾鏈帶與基材薄膜，利 用具有夾鏈帶之三向密封製袋機等，製造圖2所示之實施 例1之包裝袋。再者，作為基材薄膜，係將12㈣之聚對苯 二甲酸乙二醋薄膜與直鏈狀低密度聚乙烯（LLDPE(linear low density polyethylene))積層所得者。 (實施例1之構成材料） 無規聚丙稀（密度9〇〇 凸侧帶狀基部以及凹側帶狀基部 kg/m3、乙烯量4%) 乙烯樹脂（熔點 也、封層：茂金屬系直鏈狀低密度聚 95°C、MFR : 3 g/ΙΟ分鐘） 示差掃 凸緣之 炫點係由 DSC(differentialscanningcal〇rimeter 描熱析儀）所測定，且將最高料波峰作為炼點。 以上述條件製造之失鏈帶之形狀，如表1所示 152736.doc -18- 201134725 厚度尺寸（1))以及厚壁部之厚度尺寸（D2)為·㈣薄壁 之厚度尺寸（D1)為6G μπίο又，薄壁部並未黏合於袋體 之内面。 (實施例2) 除了使實施例2之夾鏈帶之構成材料如下所述以外，與 實施例1相同，獲得夾鏈帶以及包裝袋。 (實施例2之構成材料） 凸側帶狀基部以及凹側帶狀基部：直鏈狀低密度聚乙烯 樹月曰（LLDPE)(密度 913 kg/m3、MFR : 4 g/ΙΟ分鐘） 密封層：茂金屬系直鏈狀低密度聚乙烯樹脂（熔點： 95°C，MFR : 3 g/l〇分鐘） (比較例1) 除了使用以下之構成材料以外，以與實施例丨相同之方 式，獲得比較例1之夾鏈帶以及包裝袋。如圖6所示，比較 例1之夾鏈帶9A，係於具有凹部件91A1之凹側帶狀基部 91A與具有凸部件92A1之凸側帶狀基部92A ’分別包含黏 合於袋體2之内面211A上之切割部93A。 (比較例1之構成材料） 凹側帶狀基部91A以及凸側帶狀基部92A :直鏈狀低密 度聚乙烯樹脂（LLDPE)樹脂（密度916 kg/m3，MFR : 8.5 g/l〇分鐘） 切割部93A :結晶性聚烯烴樹脂（密度916 kg/m3， MFR . 8.5 g/10分鐘）8〇質量％、與環狀聚稀烴（mfr : 30g/10分鐘）20質量％ 152736.doc .19· 201134725 (比較例2) 除了未形成凸緣以外，以與實施例1相同之方式，獲得 圖7所示之比較例2之夾鏈帶以及包裝袋。比較例2之夾鏈 帶9B，係包含具有介隔密封層93B黏合之凹部件91B1之凹 側帶狀基部91B、及具有凸部件92B1之凸側帶狀基部 92B。而且，凹側帶狀基部91B與凸側帶狀基部92B，係包 含連結一對厚壁部94A、94B之薄壁部95。 (比較例3) 除了將薄壁部之厚度尺寸（D2)設為40 μιη以外，以與實 施例1相同之方式，獲得比較例3之夾鏈帶以及包裝袋。 (比較例4 ) 除了將凸緣之厚度尺寸（D)設為1 00 μιη以外，以與實施 例1相同之方式，獲得比較例4之夾鏈帶以及包裝袋。 (比較例5) 除了將凸緣之厚度尺寸（D)設為800 μιη以外，以與實施 例1相同之方式，獲得比較例5之夾鏈帶以及包裝袋。 [表1] 厚度尺寸(μιη) 凸緣(D) 薄壁部(D1) 厚壁部(D2) 實施例1 300 60 300 實施例2 300 60 300 比較例1 - - 比較例2 _ 60 300 比較例3 300 40 300 比較例4 100 60 300 比較例5 800 60 300 152736.doc -20- 201134725 對上述實施例1、2以及比較例1〜5之夾鏈帶以及包裝 袋，以下述之方式，實施外觀性實驗、開封性實驗、直線 切割性實驗、針孔實驗、薄壁部黏合實驗以及薄壁部彎折 實驗。 (外觀性實驗） 於包裝袋之端緣開設凹口，並自凹口將包裝袋撕開，根 據下述評價基準進行評價。其結果示於表2。 (外觀性實驗之評價基準） A ·切割部必然於一處切開。 c :切割部於兩處以上切開，從而產生切屑。 (開封性實驗） 於包裝袋之端緣開設凹口，使用數位測力計（I]VIADA股 伤么司製）’於拉伸速度3〇〇m/min，測定達到斷裂長度6〇 mm為止之斷裂強度。測定結果以下述評價基準進行評 價。其結果示於表2。 (開封性實驗之評價基準） A •無阻力’易於開封（斷裂強度：5 N/60 mm以下）。 C阻力大’難以開封（斷裂強度：5 N/60 mm以上）。 (直線切割性實驗） 於包裝袋之端緣開設凹口，並自凹口將包裝袋撕開。此 時’測定距離凹σ位置之斷裂位置之偏移，並根據下述評 價基準進行評價。其結果示於表2。 (直線切割性實驗之評價基準） 刀°丨時夾鏈帶可完全進行直線切割（斷裂位置之偏移： 152736.doc -21· 201134725 未達1 mm)。 B :切割時夾鏈帶可進行直線切割（斷裂位置之偏移：1爪瓜 以上未達3 mm)。 c :切割時夾鏈帶無法進行直線切割（斷裂位置之偏移：3 mm以上）。 對包裝袋，檢查有無針孔產生，並根據下述評價基準進 行評價。其結果示於表2。 (針孔之評價基準） A :無針孔產生β C :有針孔產生。 對包裝袋’檢查薄壁部是否黏合於袋體之内面，並根據 下述評價基準進行評價。其結果示於表2。 (薄壁部之黏合情況之評價基準） Α.薄壁部未黏合於袋體之内面。 c.溥壁部黏合於袋體之内面。 對夹鍵帶，檢查薄壁部是否彎折，根據下述評價基準進 行評價。其結果示於表2。 (薄壁部之彎折情況之評價基準） A :薄壁部未彎折。 C :薄壁部彎折。 152736.doc 22· 201134725 [表2]f EXAMPLE J Hereinafter, the present invention will be more specifically described by way of examples and comparative examples, but the present invention is not limited by the examples and the like. Fig. 6 is a cross-sectional view showing a refreshing key band of a comparative example, and Fig. 7 is a cross-sectional view showing the zipper tape of Comparative Example 2. (Example 1) The zipper tape of Example 1 was extruded by a commercially available extruder using the following constituent materials. The obtained zipper tape and the base film can be manufactured by using a three-way sealing bag machine having a zipper tape to produce the packaging bag of the first embodiment shown in Fig. 2. Further, as the base film, a 12-(di) polyethylene terephthalate film and a linear low-density polyethylene (LLDPE) were laminated. (Constituent material of Example 1) Random polypropylene (density 9 〇〇 convex side belt-shaped base and concave side belt-shaped base kg/m3, ethylene content 4%) Vinyl resin (melting point, sealing layer: metallocene straight Chain-like low-density poly 95 ° C, MFR: 3 g / ΙΟ min) The highlight of the differential sweeping flange is determined by DSC (differential scanning calorimeter), and the highest peak is used as the refining point. The shape of the loss-chain belt manufactured under the above conditions, as shown in Table 1, 152736.doc -18-201134725 thickness dimension (1)) and the thickness dimension (D2) of the thick wall portion are (4) thickness thickness of thin wall (D1) For 6G μπίο, the thin wall portion is not bonded to the inner surface of the bag body. (Example 2) A zipper tape and a packaging bag were obtained in the same manner as in Example 1 except that the constituent materials of the zipper tape of Example 2 were as follows. (Constituent material of Example 2) The convex side belt-shaped base portion and the concave side belt-shaped base portion: linear low-density polyethylene tree lunar (LLDPE) (density 913 kg/m3, MFR: 4 g/ΙΟ minute) : Metallocene linear low-density polyethylene resin (melting point: 95 ° C, MFR: 3 g/l 〇 minutes) (Comparative Example 1) In the same manner as in Example 以外 except that the following constituent materials were used, The zipper tape of Comparative Example 1 and the packaging bag were obtained. As shown in Fig. 6, the zipper tape 9A of Comparative Example 1 is attached to the inner side of the bag body 2 by the concave side belt-like base portion 91A having the concave member 91A1 and the convex side belt-like base portion 92A' having the convex member 92A1. Cutting portion 93A on 211A. (Constituent material of Comparative Example 1) Concave side belt-like base portion 91A and convex side belt-like base portion 92A: Linear low-density polyethylene resin (LLDPE) resin (density: 916 kg/m3, MFR: 8.5 g/l 〇 minute) Cutting portion 93A: crystalline polyolefin resin (density 916 kg/m3, MFR. 8.5 g/10 min) 8 〇 mass%, and cyclic polyolefin (mfr: 30 g/10 min) 20 mass% 152736.doc. 19·201134725 (Comparative Example 2) The zipper tape and the packaging bag of Comparative Example 2 shown in Fig. 7 were obtained in the same manner as in Example 1 except that the flange was not formed. The zipper tape 9B of Comparative Example 2 includes a concave side belt-like base portion 91B having a concave member 91B1 that is bonded to the sealing layer 93B, and a convex side belt-shaped base portion 92B having a convex member 92B1. Further, the concave side belt-like base portion 91B and the convex side belt-shaped base portion 92B include a thin portion 95 that connects the pair of thick portions 94A and 94B. (Comparative Example 3) The zipper tape and the packaging bag of Comparative Example 3 were obtained in the same manner as in Example 1 except that the thickness (D2) of the thin portion was 40 μm. (Comparative Example 4) The zipper tape and the packaging bag of Comparative Example 4 were obtained in the same manner as in Example 1 except that the thickness (D) of the flange was set to 100 μm. (Comparative Example 5) A zipper tape and a packaging bag of Comparative Example 5 were obtained in the same manner as in Example 1 except that the thickness (D) of the flange was set to 800 μm. [Table 1] Thickness Dimensions (μιη) Flange (D) Thin Wall Portion (D1) Thick Wall Portion (D2) Example 1 300 60 300 Example 2 300 60 300 Comparative Example 1 - - Comparative Example 2 _ 60 300 Comparison Example 3 300 40 300 Comparative Example 4 100 60 300 Comparative Example 5 800 60 300 152736.doc -20- 201134725 The zipper tape and the packaging bag of the above Examples 1, 2 and Comparative Examples 1 to 5 were obtained in the following manner, The appearance test, the opening test, the straight cut test, the pinhole test, the thin wall adhesion test, and the thin wall bending test were carried out. (Appearance test) A notch was formed at the edge of the package, and the package was torn from the notch, and evaluated according to the following evaluation criteria. The results are shown in Table 2. (Evaluation criteria for appearance test) A • The cutting portion must be cut in one place. c: The cutting portion is cut at two or more places to generate chips. (Opening test) A notch was formed at the edge of the packaging bag, using a digital dynamometer (I] VIADA sniffer), at a tensile speed of 3 〇〇 m/min, and the measurement reached a breaking length of 6 〇 mm. The breaking strength. The measurement results were evaluated on the basis of the following evaluation criteria. The results are shown in Table 2. (Evaluation criteria for the opening test) A • No resistance 'Easy to open (breaking strength: 5 N/60 mm or less). C resistance is large, it is difficult to open (breaking strength: 5 N/60 mm or more). (Line cutting test) A notch is formed at the edge of the package, and the package is torn from the notch. At this time, the deviation from the fracture position at the position of the concave σ was measured and evaluated based on the following evaluation criteria. The results are shown in Table 2. (Evaluation criteria for linear cutting test) The zipper tape can be completely cut straight at the time of the cutter (the offset of the fracture position: 152736.doc -21·201134725 is less than 1 mm). B: The zipper tape can be cut straight when cutting (the offset of the break position: less than 3 mm above 1 claw). c : The zipper tape cannot be cut straight when cutting (the offset of the break position: 3 mm or more). For the package, check for pinholes and evaluate them according to the following evaluation criteria. The results are shown in Table 2. (Evaluation criteria for pinholes) A: No pinholes produce β C : pinholes are generated. The package bag was inspected for whether or not the thin portion was adhered to the inner surface of the bag, and evaluated according to the following evaluation criteria. The results are shown in Table 2. (Evaluation criteria for adhesion of thin-walled parts) Α The thin-walled part is not bonded to the inner surface of the bag body. c. The wall portion of the crucible is bonded to the inner surface of the bag body. For the nip belt, check whether the thin portion was bent, and evaluate it according to the following evaluation criteria. The results are shown in Table 2. (Evaluation criteria for the bending of the thin portion) A: The thin portion is not bent. C: The thin wall portion is bent. 152736.doc 22· 201134725 [Table 2]
根據上述實驗，可知實施例 ^ 2乙具有夹鏈帶之包f势 係切割部必然於一處切開，因此，未產生切屑，外觀性良 好。又’可知實施例i、2之具有夾鏈帶之包襄袋係開封 感以及直線切割性優異，均無針孔、薄壁部之點合、: 壁部彎折，極為優異。 另一方面’ T知比較例1、2之包裝袋，產生切屬，外 欠佳。 一又，可知比較例3係將薄壁部之厚度尺寸設為4〇 μιη而較 薄，因此，薄壁部彎折，難以使凸緣黏合於基材薄膜。可 头比較例4係將凸緣設為丨〇〇 μιΏ而較薄，因此，製袋時薄 壁部出現黏合。可知比較例5，係將凸緣設為8〇〇 μιη而較 厚因此，於开》成側封部時產生針孔。亦即，可知本發明 之夹鏈帶之薄壁部之厚度尺寸⑴丨）較理想的是6〇 ^爪左 右，而凸緣之厚度尺寸（D)較理想的是3〇〇 μπι左右。 【圖式簡單說明】 圖1係表示本發明實施形態之具有夾鏈帶之包裝袋之正 視圖。 圖2係圖1之】ΐ-π剖面圖。 152736.doc •23· 201134725 圖3係將上述具有夾鏈帶之包裝袋之切割部放大表示之 剖面圖。 圖4係將上述具有夾鏈帶之包裝袋之凹口部分附近放大 表示之正視圖。 圖5係表示其他實施形態之具有夾鏈帶之包裝袋之剖面 圖。 圖6係表示比較例1之具有夾鏈帶之包裝袋之剖面圖。 圖7係表示比較例2之具有夾鏈帶之包裝袋之剖面圖。 【主要元件符號說明】 1 包裝袋 2 袋體 3、9A 夾鏈帶 6 嚙合部 21 基材薄膜 22 側封部 23 頂封部 24 開口部 25 凹口 40、91A、91B 凹側帶狀基部 40A 袋側面 40B、45A3、45B3、 密封層 473、50B、55A3、 573 、 55B3 、 93B 41 帶狀基部本體 152736.doc • 24- 201134725 42 43According to the above experiment, it is understood that the cutting portion of the package having the zipper tape of the embodiment ii 2 is inevitably cut at one place, so that no chip is generated and the appearance is good. Further, it can be seen that the bag having the zipper tape of Examples i and 2 is excellent in opening and closing feeling and straight cut property, and has no pinholes or thin portions, and is extremely excellent in bending the wall portion. On the other hand, it was found that the packaging bags of Comparative Examples 1 and 2 produced a genus and were not good. Further, in Comparative Example 3, the thickness of the thin portion was made thinner than 4 μm, so that the thin portion was bent, and it was difficult to bond the flange to the base film. In the first comparative example 4, the flange was set to 丨〇〇μιΏ and was thin, so that the thin wall portion was stuck at the time of bag making. In Comparative Example 5, the flange was set to be 8 μm μm thick, so that pinholes were generated when the side seal portion was opened. That is, it is understood that the thickness dimension (1) 丨 of the thin portion of the zipper tape of the present invention is preferably about 6 〇 ^ claws, and the thickness dimension (D) of the flange is preferably about 3 〇〇 μπι. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view showing a packaging bag having a zipper tape according to an embodiment of the present invention. Figure 2 is a ΐ-π cross-sectional view of Figure 1. 152736.doc •23· 201134725 Fig. 3 is an enlarged cross-sectional view showing the cut portion of the above-described package with a zipper tape. Fig. 4 is a front elevational view showing the vicinity of a notch portion of the above-described package having a zipper tape. Fig. 5 is a cross-sectional view showing a packaging bag having a zipper tape according to another embodiment. Fig. 6 is a cross-sectional view showing a packaging bag having a zipper tape of Comparative Example 1. Fig. 7 is a cross-sectional view showing a packaging bag having a zipper tape of Comparative Example 2. [Description of main component symbols] 1 Packaging bag 2 Bag body 3, 9A zipper tape 6 Engagement portion 21 Base film 22 Side seal portion 23 Top seal portion 24 Opening portion 25 Notch 40, 91A, 91B Concave side belt base 40A Bag side 40B, 45A3, 45B3, sealing layer 473, 50B, 55A3, 573, 55B3, 93B 41 belt base body 152736.doc • 24- 201134725 42 43
44 ' 54 ' 93A 45A 45A1 45A244 ' 54 ' 93A 45A 45A1 45A2
45B 45B1 45B2 46 ' 46C、95 47 ' 5745B 45B1 45B2 46 '46C, 95 47 ' 57
50、92A、92B 50A 51 52 53 55A 55A1 55B 55B1 5650, 92A, 92B 50A 51 52 53 55A 55A1 55B 55B1 56
91A1 、 91B] 92A1、92B1 94A、94B 第一鉤部 第二鉤部 切割部 第一厚壁部 第一袋側面 第一内側面 第二厚壁部 第二袋側面 第二内側面 薄壁部 凸緣 凸側帶狀基部 袋側面 基部本體 連結部 頭部 第一厚壁部 第一袋側面 第二厚壁部 第二袋側面 薄壁部 凹部件 凸部件 一對厚壁部 152736.doc -25- 201134725 211 密封膠層 211A 内面 212 基材層 461 袋侧薄壁面 462 内側薄壁面 471A、571A 袋側凸緣面 472A ' 572A 内側凸緣面 571 袋側凸緣 572 内側凸緣 D 凸緣之厚度尺寸 D1 薄壁部之厚度尺寸 D2 第一及第二厚壁部之厚度尺寸 Hll 袋側凸緣之高度尺寸 H12 内側凸緣之南度尺寸 152736.doc -26-91A1, 91B] 92A1, 92B1 94A, 94B first hook portion second hook portion first thick portion first bag side first inner side second thick portion second bag side second inner side thin portion convex Edge convex side belt-like base pocket side base body joint joint head first thick wall portion first pocket side second thick wall portion second pocket side thin wall concave member convex member pair thick portion 152736.doc -25- 201134725 211 Sealant layer 211A Inner surface 212 Base material layer 461 Bag side thin wall surface 462 Inner side thin wall surface 471A, 571A Bag side flange surface 472A ' 572A Inner flange surface 571 Bag side flange 572 Inner flange D Flange Thickness dimension D1 Thickness dimension of thin wall portion D2 Thickness dimension of first and second thick wall portion Hll Height dimension of pocket side flange H12 Southern dimension of inner flange 152736.doc -26-