TW200824975A - Easy-split reclosable tape and manufacturing method thereof, and packaging bag with easy-split reclosable tape and manufacturing apparatus and method thereof - Google Patents

Easy-split reclosable tape and manufacturing method thereof, and packaging bag with easy-split reclosable tape and manufacturing apparatus and method thereof Download PDF

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Publication number
TW200824975A
TW200824975A TW96123867A TW96123867A TW200824975A TW 200824975 A TW200824975 A TW 200824975A TW 96123867 A TW96123867 A TW 96123867A TW 96123867 A TW96123867 A TW 96123867A TW 200824975 A TW200824975 A TW 200824975A
Authority
TW
Taiwan
Prior art keywords
convex portion
thin
convex
zipper tape
bag
Prior art date
Application number
TW96123867A
Other languages
English (en)
Other versions
TWI399326B (zh
Inventor
Yoshinori Namba
Kenichi Tanaka
Shuichi Goto
Original Assignee
Idemitsu Unitech Co Ltd
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Filing date
Publication date
Application filed by Idemitsu Unitech Co Ltd filed Critical Idemitsu Unitech Co Ltd
Publication of TW200824975A publication Critical patent/TW200824975A/zh
Application granted granted Critical
Publication of TWI399326B publication Critical patent/TWI399326B/zh

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Classifications

    • 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
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
    • A44B19/16—Interlocking member having uniform section throughout the length of the stringer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/346—Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
    • B29D5/10—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the interlocking members being formed by continuous profiled strip
    • 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
    • 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
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
    • 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
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72324—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of inorganic materials not provided for in B29C66/72321 - B29C66/72322
    • B29C66/72325—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72341—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
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Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Description

200824975 九、發明說明： 【發明所屬之技術領域】 本發明係種易撕開性夾鏈帶及其製造方法、附易 撕開性央鏈帶之包裝袋及其製造装置與製造方法。 【先前技術】 作為用以包裝食品、攀〇 殿* |°σ、醫療品、雜貨等各種物品之 包凌材，使用一種包裝袋，Α将 〃料對袋體之一部配設由 =件及雌構件而形成之雌雄咬合之__對帶狀之夾鍵帶， 並使上述咬合狀態能自由開閉之附夾鏈帶者。
該種附夾鏈帶之包裝袋係藉由封閉夾鏈帶之上部而予以 被封’開封時’可將形成於包裝袋兩側之切 位置而撕開袋本體之臈，以此方式進行開封。 D 以上述方式將附夹鏈帶之包裝袋開封之情形時，由於夾 鏈帶附近之膜會被撕破，而有難以拿住袋本體之問題，、因 而需哥求在特定位置撕開袋本體膜之技術。 對此，於文獻1(日本特開細4_276925號公報）中 一種於夾鏈帶之一部分 " 門代士 - 丨刀I又開封鈕，精由拉扯開封鈕而撕 膜之技術。此夕卜，於文獻2(日本特^ 7號A報）中，揭示一種為使撕開處誘導至 條帶部，而使用可I L 人鍵f之 吏用了撕開性的樹脂使其拉開之夾鏈帶。再 ’於文獻3(日本特開平1〇-〇59384號公報）中，揭示一種 =特定位置撕開撕條，而使用具高剛性之撕條使其拉開 之技術。 但疋’在上述文獻1中，由於在夾鏈帶之-部分中配設 122325.doc 200824975 有開封鈕，以開封鈕撕開帶口時， 之 -部分或全部’故有小孩或老人難以;二時扯，夾鏈帶 此外，在上述文獻2中，由於易 ，之問題。 聚烯烴及環狀聚烯烴中之、開性樹脂包含結晶性 扯開樹脂層無法相互溶合，故未：：性樹月:之混合物’易 面剝離，而從撕開之夾鏈中產生碎屑二:二分別從撕開 此外’在上述文獻3巾，撕條或為二維，)。 導線係㈣後附於夾鏈帶或製袋機之職，為開性之誘 中並不容易製作。 〜廷在製袋步驟 再者，在如上述之先前方法中，在撕拉 時，因缺少可誘導物，故會發生 開的膜 情形。 遇又鏈併拉開之不良 本舍明之目的在於提供-種於拉開失鏈帶進行開封時， 能夠將包裝袋輕易拉開到特定位置，且不會產生碎屬之易 撕開性夾鏈帶及其製造方法、附易撕開性 及其製造裝置與製造方法。 命之匕^衣 【發明内容】 本發明之易撕開性夾料，係具備—對雄構件及雕構件 相互咬合之咬合部及各自連接於前述咬合部之帶狀基部， 且安裝於包裝袋之袋體内面者’其特徵在於包含··本體， 其係前述帶狀基部中至少_方設有前述咬合部者；第一凸 狀部，其係設於該本體之開口部側，比前述本體更厚壁 者；薄壁部，其係設於該第—凸狀部之開口部冑，比前述 第一凸狀部及前述本體更薄壁者；及第二凸狀部，其係設 122325.doc 200824975 於該薄壁部之開口部侧，
ί^月丨J 者；前述第一凸狀部與前述第 袋體内面之對向面係位於大致 面後退之位置設置前述薄壁部 撕開誘導片。 在本發明中，於設有咬合部 凸狀部，於第一凸狀部之開口 體更薄之薄壁部，於薄壁部之 體更厚之第二凸狀部。亦即， 部及第二凸狀部相夾。 述薄壁部及前述本體更厚壁 一凸狀部之各自對向於前述 同一面，在相對於該等對向 而形成階差；前述薄壁部係 之本體之開口部側設置第一 部側形成比第一凸狀部及本 開口部側形成比薄壁部及本 薄壁部係由較厚之第一凸狀 由於薄壁部較薄，故於開封時’薄壁部會作為撕開誘導 :而被撕斷。再者，即使誤使拉開線偏離薄壁部，較厚之 第-凸狀部及第二凸狀部也不會被撕斷’而能夠使拉開線 回到薄壁部之位置。此外，拉開之後會留下第—凸狀部， 而比本體為厚，故手可抓住第一凸狀部而好拿。 2外，由於第一凸狀部及第二凸狀部比本體為厚，故會 在第一凸狀部及第二凸狀部之誘導下撕開。若將本體之厚 度形成為與第一凸狀部及第二凸狀部相同之厚度，則夾鏈 ▼之密封溫度會非常高，造成雄構件及雌構件變形，故不 具實用性。 因此’將安裝該夾鏈帶之包裝袋開封時，使用薄壁部作 為撕開誘導片，能以撕開該誘導片之方式輕易開封。 此外，由於薄壁部係設在比安裝於第一凸狀部及第二凸 狀部之袋體内面之侧的面更為後退之位置，將該夹鍵帶安 122325.doc 200824975 裝於包裝袋之袋體内面時，會於薄壁部與基材膜之間形成 空隙。藉由該空隙，使薄壁部變得更容易撕斷。 此外，基於如上述之構造，而能夠於薄壁部與第一凸狀 部及第二凸狀部之間形成階差，在將安裝該夾鏈帶之包裝 袋開封時，容易沿著該階差使薄壁部撕斷。因此，在將包 裝袋開封時，可對基材膜之撕斷賦予直進性。 再者，由於帶狀基部之本體設為如先前之厚度，僅將第
y: -凸狀部及第二凸狀部形成較厚，故不會對夾鏈帶本體之 密封性帶來不良影響。 一本發明之易撕開性夾鏈帶’其中較佳為：前述雄構件及 前述雌構件各自之前述帶狀基部包含：前述本體、前述第 一凸狀部、前述薄壁部及前述第二凸狀部。 在本發明中，由於在夾鏈帶之—對雄構件及雌構件之兩 者上設有第-凸狀部、薄壁部及第二凸狀部，故可適用於 ==構件及雌構件兩者上之薄壁部與包裝袋之基材膜 同夺撕開而開封之附夹鏈帶之包裝袋。該情況下 ^之兩端形成有㈣，將㈣作為開 壁Γ基材膜重合之狀態下，可暫時撕開而開封。 前述雖構件上於前述雄構件及 -方薄壁部之長度不同。 -方薄壁部之長度與另 在本發明中，由於設在雄 上之薄壁部之，& 之薄壁部與設在雌構件 將安妒有：又 ☆相對向之薄壁部產生階差。 有如上述構造之夹鏈帶之包裝袋撕開而開封時， 122325.doc 200824975 相對向之基材膜之拉開線會呈偏離狀態，而於再開封時， 容易拿住包裝袋之開口部之基材膜。 本發明之易撕開性爽鍵帶’其中較佳為：前述雄構件或 ㈣雌構件中任一方之前述帶狀基部包含：前述本體、前 述第一凸狀部、前述薄壁部及前述第二凸狀部； 方之 前述帶狀基部包含：前述本體及前述第一凸狀部。 在本發明中，由於薄壁部及第二凸狀部，僅設在雄構件 及雌構件中任一方之帶狀基部，故於開封時，會同時撕斷 設於其中一$之薄壁部及相對向<包裝袋之基材膜。由於 薄壁部僅設於其中一方，故能以較小之力氣開封。此外， 由於在薄壁部與第二凸狀部及第一凸狀部之間形成階差， 故會沿著該等中任一方之階差，及於相對向之帶狀基部之 =一凸狀部之開口部側端面形成之階差而撕斷。因此 夠維持拉開線之直線性。 一本發明之易撕開性夾鏈帶’其中較佳為：具有與前述第 =狀部及前述第二凸狀部之厚度相同高度之-條或數條 之肋部設在比前述本體之前述咬合部更非開口部側。- 口部側二二:糸以使易撕開性夾鏈帶之開口部側與非開 此一來，方式’設置-條或數條之肋條。如 棒會均等接觸：::：r於袋體之内面時， 鏈帶之融著。鏈m故能夠穩定而正確地進行夾
本發明之易撕n I 〇·12職以下^夹鍵帶較佳為：前述薄壁部之厚度為 則述第二凸狀部及前述第一凸狀部之厚度 122325.doc 200824975 為0.20 mm以上1 mm以下。 在本發明中，由於薄壁部之厚度為0 l2 輕易撕斷薄壁部。若超過012 mm · mm以下，故可 致撕開性降低。 ~撕開抗性變大，導 此外，由於第二凸狀部及本體之第— 、 0.20 mm〜1 mm，故不會& _ 一 & # 之厚度為 ^ 弟一凸狀部及本體之第一 Λ壯 邛之位置被撕斷。若小於〇 2〇 _，於 整個夾鏈帶撕開，·若大於1 mm，有可^引、可能會將 封性或效率降低等之不良情形。更佳之:二袋時之密 mm。 乾圓係〇·3 mm〜〇,5 本發明之易撕㈣线帶，其中 寬度為〇.5酿以上5mm以下。 為1述溥壁部之 在此所說的薄壁部之寬. -凸狀部Μ 冤度疋指設在薄壁部之兩旁之第 4，、第一凸狀部之距離。 根據本發明，由於將薄壁部之寬 _以下，故可在薄壁部之位 出以上5 度小於〇·5 _確實撕斷。若薄壁部之寬 能會越過第-凸狀邻^ 右赵過5咖，則有可 mm以上3 。及第—凸狀部而被撕斷。更佳係1 以上3 111111以下之範圍。 1 於本發明之易撕開性爽鍵帶， 狀部、前述第二凸狀、“為·刚述第-凸 形成。 迷4壁部較佳以無規則聚内烯 由於第一凸狀部、第二凸狀部及薄壁部是 K丙稀形成，故易撕開性良好，且撕斷部分不; 122325.doc 200824975 產生碎屑（細鬚）。 本發明之易撕開性夾鏈帶係如請求項1至7中任— 甘 貝考， 八中較佳為：其中前述第一凸狀部及第二凸狀部係以同種 樹脂形成，前述第一凸狀部及第二凸狀部與前述薄壁部係 以異種樹脂形成，前述第一凸狀部及第二凸狀部與前述本 體係以異種樹脂形成。 第一凸狀部及第二凸狀部所使用之樹脂未特別限定，例 如可使用低密度聚乙烯、直鎖狀低密度聚乙烯、聚丙烯、 聚苯乙烯等。此外，本體所使用之樹脂只要能使夾鏈帶之 咬合部再開閉即可，可使用如同第一凸狀部及第二凸狀部 所使用之樹脂者。另一方面，在薄壁部中，只要是與上述 樹脂相溶性高之樹脂且拉開性佳即可，未特別限定，例如 可使用低密度聚乙烯、直鎖狀低密度聚乙烯、聚丙烯、聚 對苯二甲酸二乙_、聚對苯：甲酸了二_、環稀煙共聚 物等。可將該等樹脂組合，讓薄壁部與第一凸狀部及第二 凸狀部使用不同樹脂，《第—凸狀部與本體使用不同樹脂 等，可任意選擇使用之樹脂。 如上料，由⑨易撕開性夾鍵帶是以不同種之樹脂構 成，故會在薄壁部與第二凸狀部之間，或薄壁部與第一凸 狀部之間’或第-凸狀部與本體之間進行層間剝離，因此 易撕開性良好’且不會從撕斷部分產生碎屬(細鬚此 外，亦可賦予拉開線之直線性。 本發明之易撕開性夾鏈帶亦可以是：前述第—凸狀部、 前述第二凸狀部及前述薄壁部以同種樹脂形成，而前述第 122325.doc -13 - 200824975 -凸狀部、前述第二凸狀部及前述薄壁部與前述本體 種樹脂形成。 〃 刖述第-凸狀部、前述第二凸狀部及前述薄壁部所使用 ?脂未特別限定’例如可使用低密度聚乙烯、直鎖狀低 密度聚乙烯、聚丙稀、聚苯乙婦等。此外，前述本體所使 用之樹脂亦未特別限定，可使用與前述第一凸狀部'前述 第二凸狀部及前述薄壁部所使用之樹脂不同種之樹脂 從前述之樹脂中進行任意組合使用。 曰 根據本發明，由於^同種之樹脂形成之第-凸狀部斑 本體之間會進行層間剝離，故易撕開性良好， 撕 斷部分產生碎屑（細鬚）。 θ仗撕 > =明之易撕開性夾鏈帶亦可以是：前述第—凸 二凸狀部、前述薄壁部及前述本體各自以異種樹脂 所使用之樹脂未特別限定， 聚乙烤、直鎖狀低密度聚乙婦、者’使用低密度 可以使前述第一凸狀邻、a、+、哲 等’亦 >“ 卜則述第二凸狀部、前述薄辟邻及 則述本體各自使用不同種之樹脂’而任意組合使用核 根據本發明’由於各自以不同種之樹脂 薄壁部與第二凸狀部之間、薄壁部與第一=因此會在 一凸狀部與本體之間”任―者之樹脂 二:;離弟 :性良好’且不會從撕斷部分產生二:離， 本發明之易撕開性夾鏈帶較佳 、須）。 狀部、前述第二凸狀部及前興 文、於則述第一凸 P及别述本體之袋體内面之側的面上 122325.doc -14- 200824975 設置密封層。 “康本U由於α又有密封層，故可選擇與袋體之密封 ㈣層所使狀樹脂具有良好相溶性之樹脂作為密封層。因 此，無論袋體所使用之樹脂Α Τ月曰為何，皆可提供接著性優異之 易撕開性夾鏈帶。 本發明之易撕開性夾鏈帶較 f叙仏為·形成前述密封層之樹 月曰係熔點比形成前述第一 义 太舻+ & 狀邛則述弟二凸狀部及前述 本體之樹脂低，且含有以下之㈧及(B)者： ⑷密度920 kg/m3以下 屬 FR為5·〇 g/ιο分鐘以下之金 屬a糸直鏈低密度聚乙嬌s哲 烯50負ϊ%以上1〇〇質量％以下。 (β)包含丙烯及碳數4〜8之嬌 0/,^ μ ^ α烯4/、聚物之組成物0質量 /〇以上50質量〇/0以下。 貝里 根據本發明，由於密封層 脂，故能提供與袋體之接著⑷及（Β)之樹 太„Η 衣體之接者性優異之易撕開性夹鏈帶。 毛明之易撕開性夾鏈帶之製造 由共擠出，以單-…“方法，其特徵在於：藉 早製耘製造包含前述咬人邱二 前述第-凸狀部1 之則述本體、 弟一凸狀部及别述薄壁部。 在本叙明中’由於能藉由共擠出以單— 1 易撕開性夾鏈帶,,.. v驟氣造前述之 造。…，故於製造步驟中可不費時間而輕易製 人本：明之附易撕開性夾鏈帶之包裝袋， 3 .則述之易撕開性央鍵帶安I 於包 袋體，在前述袋… _有°亥易撕開性夾鏈帶之 之面及與該薄壁 體内面之薄壁部 土口P之面父叉之刖4第一八 凸狀部之面與前述 122325,doc -15- 200824975 第一凸狀部之面之間形成有空隙。 内：：本發明，由於附易撕開性夹鏈帶之包裝袋係於袋體 …專壁部，及第一凸狀部與第二凸狀部 隙，故可發揮與前述相同之功效。 /成二 附易撕開性爽鍵帶之包裳袋…於該 =㈣易撕開性夾鏈帶交又之方向形成側密封部； :推封部之前述薄壁部係寬度較比前述側密‘ 別述薄壁部更寬廣。 側之 :據本發明’由將包裝袋之側密封部中之薄壁部形成為 :見，故可於該位置確實形成凹口，而能提供易撕 異之附失鏈帶之包裝袋。 本發明之製造附易撕開性夹鏈帶之包裝袋之製造裝置 其特徵在於包含：—對點㈣棒，其用以熔化前述側 部之前料壁部，前述-對點密封棒至少—方包含具衫 述空隙鬲度以上的高度之凸部。 =前之方法中’將側密封部之薄壁部壓炫時，溶融樹 、士 ★哥土 I印頁J月匕w成側密封部中之薄壁部變 或變薄之情形發生，因而難以形成凹口。 /艮據本發明，由於設在點密封棒上之凸部之端面會先與 薄壁部接觸而溶融’故後續溶融之第一凸狀部及第：凸狀 部之溶融樹脂無法滲入薄壁部。因此，能夠維持薄壁部之 寬度及薄度。此外’凸部較佳為大致梯形，藉由形：為大 致梯形，可將薄壁部之寬度形成為較寬。 因此，可於側密封部中之薄壁部確實而敎形成凹口 122325.doc • 16 - 200824975 而能提供易撕開性與品質兼優之製品。 本發製造附易撕開性夹鏈帶之包裝袋之製造農置較 佳為m點密封棒具有前述凸部之抵接面 不同的複數種類。 ㈢ 根據本u ’由於具備複數種凸部之抵接面之大小不 之‘:密:：棒：故可從凸部之抵接面之大小較小之點密封棒 =仏進行密封。因Λ，能夠確實將薄壁部形成為 且九0 :發明之附易撕開性夹鏈帶之包裝袋之製造方法，其特 壁部之位：在熔：：述薄壁部時’使前述凸部對準前述薄 而攸前述薄壁部之中心向外側熔融壓扁。 本發明，如前所述，能夠維持薄壁部之寬度並進行 :二扁平化’故可將薄壁部形成為既薄且寬。因此，可於 、封邛中之薄壁部確實而穩定形成凹口撕 開性與品質兼優之製品。 而―、易撕 本：明之附易撕開性夹鏈帶之包裝袋之製造方法較佳 :的：Γ對點密封棒具有前述凸部之抵接面大小各自不 起仗I種類，從¥述凸部之抵接面大小較小之點密封棒 起依序密封。 + 封由於是從凸部之抵接面之大小較小之點密 夠破杳松封’故能穩定地使薄壁部扁平化。因此，能 ::溥壁部形成為既薄且寬，而易於 【貫施方式】 Λ下根據圖式說明本發明之實施形態。在各實施形態之 122325.doc 200824975 說明中對於標註相同符號之構件，省略或簡略其說明。 [第一實施形態] 首先’根據圖1及圖2說明本發明之第一實施形態。 如圖1所示，本實施形態之附夾鏈帶之包裝袋1A具備袋 體2’該袋體2係與作為包裝材之基材膜24重合，藉由於其 周緣形成側密封部21及頂封部22而形成，於袋體2之開口 部23之内面，安裝有夾鏈帶3A。 圖2表示夾鏈帶3A之剖面構造。夾鏈帶3A係包含一對雄 構件32及雌構件33而構成，雄構件32係藉由融著於袋體2 之帶狀基部321、及剖面為大致箭頭狀之頭部322，及連結 該帶狀基部321與頭部322之連結部323而一體成型。再 者，雌構件33與前述雄構件32相同，係包含融著於袋體2 之帶狀基部33 1，及與該帶狀基部33丨連結而形成之剖面為 圓弧狀之第一鉤部332及第二鉤部333，該第一鉤部332與 第二鉤部333係以相對向之方式形成。 夾鏈帶3A係以雄構件32之頭部322與雌構件33之第一釣 部332及第二鉤部333形成咬合部31，藉由該等分離或咬 合，進行開封或再封。 帶狀基部321包含··設有咬合部31之本體3211 ;設於該 本體3211之開口部側之第一凸狀部;連接於第一凸狀 部3212之開口部側之薄壁部3213 ;及連接於該薄壁部3213 之開口部側之第二凸狀部3214。 第一凸狀部3212之基材膜24側之面3212B與第二凸狀部 3214之基材膜24側之面3214B位於大致同一面上，薄壁部 122325.doc -18- 200824975 32 13係设在比該等之面更為後退之位置。藉此，於薄壁部 3213與第一凸狀部3212及第二凸狀部3214之間形成階差。 再者’薄壁部32 13設在比第一凸狀部3212之咬合部31側 之面3212C及第二凸狀部3214之咬合部31側之面^化更 為後退之位置。 薄壁部3213之厚度較佳為0.12 mm以下，在本實施形態 中設為（M mm。此外，本體3211之厚度設為〇15匪，本 體3211之第一凸狀部3212及第二凸狀部mi *之厚度較佳設 定在0.20 mm〜1 mm之間，例如可設為〇 3瓜瓜。 再者，薄壁部32丨3之寬度較佳設為〇5 mm以上5 mm以 下，更佳之範圍為1 mm以上3 mm以下因此在本實施形 態中設為2 mm。 此外，不在帶狀基部321之本體3211之咬合部31而在非 開:部侧’設有高度與第一凸狀部3212及第二凸狀部3214 之高度相同之肋條34。肋條34之個數雖未限定，但在本實 施形態中設為4條。 帶狀基部331亦同樣具備：設有咬合部31之本體33 U ; 設於該本體3311之開口部側之第一凸狀部DU ;設於第一 凸狀部3312之開口部側之薄壁部3313 ;及連接於該薄壁部 33 13之開口部側之第二凸狀部3314。 薄壁部3313設於與帶狀基部321之薄壁部3213相同之位 置，於薄壁部3313與第-凸狀部3312及第二凸狀部3314之 間形成階差。
各部之厚度可與帶狀基部321同樣設定為：薄壁部MU 122325.doc -19- 200824975 之厚度為0.1 mm，本體3311之厚度為0.15 mm，本體3311 之第一凸狀部3312及第二凸狀部3314之厚度為0.3 mm。 此外，薄壁部33 13之寬度設為2 mm。 再者，不在本體33 11之咬合部3 1而在非開口部側，設有 4條之肋條3 4。
使如上述構造之夾鏈帶3A融著於袋體2之内面時，會於 雄構件32之薄壁部3213之面3213A與袋體2之膜，以及與薄 壁部3213之面3213A交叉之第一凸狀部3212之面3212A與 第二凸狀部3214之面3214A之間形成空隙。再者，雌構件 33亦同樣的，會在薄壁部33 13與袋體2之膜，以及與薄壁 部3313之面33〗3A交叉之第一凸狀部3312之面3312A與第 二凸狀部33 14之面33 14A之間形成空隙。 此外’在使夾鏈帶3A與内外之基材膜24重合之狀態下， 於薄壁部3213及薄壁部33 13之兩端之位置，各自形成開封 開始位置之V字形之凹口 25(圖1)。 夾鏈帶3A之製造可藉由共擠出成型法而一體化成型。藉 由共擠出法成型’彳簡化製造步驟、降低製造成本，且能 夠連續而穩定的製造夾鏈帶3A。 火蛾之雄構件32、雌構件33只要能夠再開閉 即可，並未特別限定，但較佳以—般所使用之低密度聚乙 月=直鎖狀低密度聚乙稀等之聚乙稀系樹脂及聚丙烯系樹 :之聚烯烴系樹脂等形成。作為聚丙烯系樹脂，可使用 均聚聚丙婦、與取工a 人1又聚丙烯、無規則聚丙烯（RPP)、丙烯/乙 歸/丁烯1無規則三元共聚物、聚稀煙系特殊軟質樹脂(TP0 122325.doc -20- 200824975 樹脂’例如曰本PRIME POLYMER公司製TPO)等之熱可塑 性樹脂，以及混合該等樹脂之混合物。 此外’作為形成袋體2之包裝材之基材膜24，較佳使用 於基材層242上層璺密封劑層241的構造之層疊膜，但亦可 因應所要求之性能，於基材層242與密封劑層241之間，使 用層疊氣體阻障層、遮光層、強度提升層等而作為中間層 (未圖示）的構造之層疊膜層。 基材層242除了雙軸延伸聚丙烯膜（〇ρρ膜）之外，可適當 使用雙軸延伸聚對苯二甲酸二乙酯膜（ρΕΤ膜卜雙軸延伸 聚對萘二甲酸二乙s旨臈（ΡΕΝ膜）等之雙軸延伸聚3旨膜，或 尼龍6、尼龍66、MXD6(聚己二酰間苯二甲胺）等之雙軸延 伸聚醯胺膜等’但亦可因應必要而使用各種工程塑膠膜。 此外’該等膜可單獨使用，或者亦可將複數加以組合層疊 而使用。 將中間層作為氣體阻障層之情形時，中間層除了乙婦 醋酸乙烯共聚物醋化物(EV〇H)、聚偏二氯乙烯(p 、 聚丙烯腈(PAN)等之膜之外，亦可使用銘落，或者二氧化 矽、氧化鋁、鋁等之蒸鍍層或pvDc之塗膜層。 此外，使用主二氧化石夕、氧化銘、銘等之Μ層或pvD( 之塗膜層之^時，可蒸鍍或 242之内面，或者， ：成於則迷基材層 无4鍍或塗佈而形成於另 軸延伸尼龍膜（〇%膜）、雙轴延伸聚對苯二 雙 (_、雙軸延伸聚丙稀膜 將膜 於中間層上。 …、後將該膜層4 122325.doc -21 - 200824975 該等之中，鋁箔及鋁蒸鍍層因不透明，故亦可兼作為遮 光層。 基材層242及中間層之膜之層疊，可使用周知之乾式貼 合法（Dry Lamination)或擠出貼合法（夾心式貼合法）。 最内層之密封劑層241，可使用低密度聚乙烯或聚丙烯 (OPP)等。 又密封劑層241之層疊，可先將上述之樹脂製成膜狀， 再以乾式貼合法或擠出貼合法進行層疊，或是可將前述之 樹脂擠出、塗佈並層疊，而製得基材膜24。 使用以如上方式製得之基材膜24及夾鏈帶3八，並使用附 夾鏈帶三方密封製袋機等，製造附夾鏈帶之包裝袋1A。 附夾鏈帶三方密封製袋機，係使從條帶送出部送出之夾 鏈帶3A定位於從包裝材送出部送出之一對基材膜24之間， 通過使夾鏈帶3A與基材膜24融著之夾鏈帶融著部後，將所 要運运之基材膜24對著基材膜24之運送方向以特定間隔進 行融著及溶斷而形成附夾鏈帶之包裝袋1A。 在此，當形成附夾鏈帶之包裝袋1A之侧密封部21時，必 須進行用以壓熔夾鏈㈣之點密封步驟。圖3表示該點密 封步驟之剖面圖。 Ί點密封棒41及42之製造裝置4，於點㈣棒41上設 :^43。凸部43之形狀雖未特別限^，但較佳為剖面大 =形1剖面大致梯形之短邊43B係凸部43之端面43A 料大致梯形之長邊43C係與凸㈣之端面43A 面之剖面。短邊43B設為與薄壁部3213之寬度等 122325.doc -22- 200824975 長之2 mm，長邊43C只要比短邊43B為長即可，未特別限 定’但在本實施形態中設為4·2 mm。此外，凸部43之高产 只要超過形成於薄壁部3213或33 13與基材膜24之間的空隙 部之南度即可。 以如上述構造之製造裝置4進行點密封時，是將凸部Μ 從基材膜24之上押抵於薄壁部3213和3313，並從薄壁部 3213和3313之中心向外側方向施力，藉此將其溶融扁平 化。 此外，在以點密封棒41及42進行點密封之前，亦可藉由 具有抵接面小於凸部43之抵接面的凸部之點密封棒進行密 封，藉此可更為穩定進行扁平化。 圖4表示如以上方式密封而成之側密封部21中之薄壁部 之剖面圖。薄壁部3213和3313之寬度維持不變，而以剖面 大致梯形之凸部43進行密封，藉此使較薄部分形成為比薄 壁部3213和3313更寬。 其次說明將本實施形態之附夾鏈帶之包裝袋丨八開封之方 法。 開封時，握住形成於薄壁部3213及薄壁部33 13的兩端之 任一個凹口 25之開口部側之基材膜24及内容物側之基材膜 24，以該凹口25作為撕開開始位置，以向前後撕開之方式 開封。於是便可將薄壁部3213、薄壁部33 13及相對向之基 材膜24暫時撕開。 之後，將夾鏈帶3A之咬合部3丨拆開，便可將附夾鏈帶之 包裝袋1A開封。再封之情形時，只要使雄構件32與雌構件 122325.doc •23- 200824975 33咬合，使咬合部31成為咬合狀態即可。 根據如前所述之夾鏈帶3A及附夾鏈帶之包裳袋1A，可 發揮以下所示之功效： (1)本實施形悲之夾鍵帶3 A係將設於相對向之帶狀美部 321及3S1上之薄壁部3213和3313形成為薄壁狀，因此在開 封時’容易沿著薄壁部3213和3313撕斷，而可將附夾鏈帶 之包裝袋1A開封。 再者，設於薄壁部3213及3313的兩端之第一凸狀部3212 和33 12及第二凸狀部3214和33 14，係形成為比薄壁部3213 及33 13更厚，因此在開封時，拉開線即使偏離薄壁部3213 和3313，第一凸狀部3212和3312及第二凸狀部3214和3314 也不會被撕斷。 此外’將該夾鏈帶3 A安裝於袋體2之内面時，會在袋體2 之膜及與袋體2之膜相對向之薄壁部3213之面3213A，以及 與薄壁部3213之面3213A交叉之第一凸狀部3212之面 3212A與第二凸狀部3214之面3214A之間形成空隙。如此 一來，薄壁部3213與第一凸狀部32 12之間以及與第二凸狀 部3214之間會產生階差，因此在開封時，容易使薄壁部 32 13沿著該階差撕斷。再者，於薄壁部3213與第一凸狀部 3212及第二凸狀部3214之咬合部31側亦形成階差，因此更 容易在薄壁部3213與第一凸狀部3212及第二凸狀部3214之 間撕斷。 此外，帶狀基部331亦同樣的，會在袋體2之膜以及與袋 體2之膜相對向之薄壁部3313之面3313A，以及與薄壁部 122325.doc -24- 200824975 3313之面33UA交叉之第一凸狀部3312之面3312A與第二 凸狀部3314之面3314A之間形成空隙。如此一來，薄壁部 33丨3與第一凸狀部3312之間以及與第二凸狀部^“之間會 產生階差，因此在開封時，容易使薄壁部33丨3沿著該階差 撕斷。再者，於薄壁部3313與第一凸狀部MU及第二凸狀 部3314之咬合部31側亦形成階差，因此更容易在薄壁部 3313與第一凸狀部3312及第二凸狀部3314之間撕斷。 因此，能夠對拉開線賦予直線性，而能夠在不破壞夾鏈 帶3 A之同時實現易開封性。 (2)薄壁部之厚度為0.12 mnmy，第—凸狀部及第 凸狀部之厚度為0.20 mm以上1 mm以下，且薄壁部之寬度 為〇·5 mm以上5 mm以下，故薄壁部容易撕斷，而第一凸 狀部及第二凸狀部則難以撕斷。因此，不但易於沿著薄壁 部 外 撕 斷，具有易撕開性，亦可對拉開線賦予直線性。此 第-凸狀部及第二凸狀部不會太厚，故密封效率亦 佳，而不會影響到加工性。 、薄壁部3 213、第 凸狀部3312、薄壁 係以共擠出方法各 成本而輕易製造。 (3)具有本體3211、第一凸狀部3212 二凸狀部3214之雄構件32，及具有第一 部3313、第二凸狀部33 14之雌構件33， 自在一步驟中製造。因此可不費時間及 ⑷不在帶狀基部321之本體3211之咬合部^而在非開 口部侧’設有高度與第-凸狀部3212及第二凸狀部3214相 同之4條肋條34，故在使夾鏈帶3A與基材膜以融著時，能 夠使密封棒遍佈於夾鏈帶从全面而均等接觸。目此，= 122325.doc -25- 200824975 確實而穩定的使夾鏈帶3A融著於基材膜24上。 (5)點密封棒41上設有凸部43，使用此進行密封時，薄 壁部3 213及3 3 13會先接觸到點密封棒41和4 2而溶融。因 此，較厚之第一凸狀部3212及第二凸狀部3214之溶融樹脂 不會滲入薄壁部32 13和3313，故可維持薄壁部3213及33 13 之寬度。再者’將凸部43形成為剖面大致梯形，藉此可使 較薄部分更寬廣。於是，容易穩定形成凹口 25，且能提升 易撕開性。 [第二實施形態] 其次根據圖5，說明第二實施形態。 第二實施形態之構造，除了相對向之薄壁部3213和3313 之長度不同，以及薄壁部3213和3313、第一凸狀部3212和 33 12及第二凸狀部3214和33 14所使用之樹脂不同之點以 外，其餘皆與第一實施形態相同，故省略說明。 如圖5所示，雄構件32之薄壁部3213之長度形成為比雌 構件33之薄壁部33 13來得短。 此外，薄壁部3213所使用之樹脂，乃使用與設於薄壁部 32丨3兩端之第二凸狀部32U及第一凸狀部3212所使用之樹 脂不同者。其所使用之樹脂，可列舉在第一實施形態中使 用之树知中，任意選擇異種之組合，例如可選擇低密度聚 乙烯及聚丙烯。 於開封時，會在薄壁部3213和3313與第二凸狀部3214和 3314之間，或是在第一凸狀部3212和3312之間進行層間剝 釗離位置如圖5之A〜D所示，無論是哪一個拉開面都 122325.doc -26 - 200824975 會呈不對稱地撕斷。
相同之功效以及下列功效：
住開口部之基材膜24。
剝離’故可對拉開線賦予直線性。 凸狀部3212及第二凸狀部 容易在該等之間進行層間 。此外，由於是層間剝 離，故不會在撕開處產生碎屑，而能提供衛生之製品。 [第三實施形態] 其次根據圖6，說明第三實施形態。 第三實施形態之構造中，除了僅於雌構件33之帶狀基部 ( 331使用設有薄壁部3313及第二凸狀部3314之夾鏈帶3〇以 外，其餘皆與第一實施形態相同。 在此，雄構件32之帶狀基部321之長度較佳調整為：使 • 開口部側端面3212A之位置，與雌構件33之第一凸狀部 . 3312和薄壁部3313之交界面3312A之位置錯開。如此一 來’相對向之基材膜24便會沿著拉開線F〜G呈不對稱地撕 斷’故於再開封時容易拿住基材膜24。 此外’附夾鏈帶之包裝袋ic係在第二凸狀部3314與相對 向之基材膜24相融著之狀態下密封。 122325.doc -27- 200824975 如此之弟二實施形恶之構造，能夠發揮與第一實施形態 相同之功效以及下列功效： (8)薄壁部33 13是使用僅設在雌構件33側之夾鏈帶3C， 故於開封時，會沿著連結薄壁部33 13與第二凸狀部3314及 薄壁部3313與第一凸狀部3312之間之階差，與相對向之第 一凸狀部3212之拉開線F、G或拉開線E中任一者而撕斷。
由於薄壁部3313僅設在其中一者，故能夠以較小的力道 開封，而實現易開封性。 此外，第一凸狀部3312及第二凸狀部3314形成為比薄壁 部3313為厚，故即使拉開線偏離，仍可使拉開線回到原來 之撕斷位置。 又本發明並非限定於前述之實施形態者，舉凡在能夠達 成本發明之目的及效果之範圍内所做之變形或改良，皆當 本發明之内容所涵蓋者。此外，實施本發明時之具體構2 及形狀等’只要是在能夠達成本發明之目的及效果之範圍 内’亦得採用其他之構造或形狀等。 例如，在本實施形態中，不在帶狀基部32、33之本體 32η、3311之咬合部31，而是在非開口部侧’設有4條肋 條34,但肋條34之個數不限。此外，如圖7所示，亦可採 用不設有肋條3 4之構造。 此外，為壓熔側密封部2 1中 上設有凸部43，但如圖8所示 成與凸部43嵌合之凹部44。如 寬之薄壁部。 之薄壁部，而於點密封棒4 i ，亦可於點密封棒42上，形 此一來，可確實形成既薄且 122325.doc -28- 200824975 此外，如圖9所示 之形狀。 凸部43亦可形成為剖面大致圓弧狀 再者，如圖1 〇所示，亦 了在點始、封棒41和42之相對向位 置各自设有凸部43。 :二如圖11所示，亦可於點密封棒41上形成沿著咬合 :之^面形狀成形之凹部45，如此一來，由於是沿著咬 合部31進行製袋，故能 灵I疋的將溥壁部正確地溶融扁 千化。 而在該等之點密封中， 丌了猎由凸部之抵接面大小不同 之點密封棒，經由兩階段、二 一 U #又4數個階段進行密封， 如此一來，能夠更穩定進行扁平化。 此外，在本實施形態中，係於帶狀基部321和33丨各形成 -條較厚之第一凸狀部3212和3312,但亦可設置2條以 上。如此-來，即使在誤使拉開線移轉到第一凸狀部如 或3312之情況下’仍可確實使拉開線回到㈣部則和 3 3 13之剝離部分。 、再者’在前述實施形態中，將溶著夹鏈帶3之包裝體設 為二方袋，但本發明不限於此，亦可適用於藉由日本特開 2003-155044之製法而製成之袋或枕袋式包裝袋。 而在前述實施形態中，帶狀基部321及331係以單一層形 成，但亦得以複數層形成。尤其，在將帶狀基部321和331 溶著於袋體之側之面上若設置密封層，可使用與袋體2之 基材膜24之密封劑層241具有良好接著性之樹脂作為^封 層。因此，無論袋體2之基材膜24所使用之材料為何:均 122325.doc -29- 200824975 改蔓條件製成夾鏈帶 及碎屑之評估。 可製造出接著性優異之夾鏈帶。 如以下之實施例及比較例所述， 亚針對各央鏈帶進行有無撕開抗性 [實施例1] 對雄構件和雌構件之圖3所示 薄壁部之長度及各部之厚度如 藉由共擠出而製得包含一 之夾鏈帶。所使用之樹脂、 下。 MFR(溶融流率）7 0 夾鏈帶··聚丙烯（密度9〇() kg/m3 g/l〇 min) 薄壁部：聚丙烯（密度9〇〇kg/m3，MFR7〇g/i〇min) 薄壁部之長度（雄構件）·· 2 mm 薄壁部之長度（雌構件广5 mm 第一凸狀部、第二凸狀部之厚度·· 250 薄壁部之厚度·· 100 μηι 本體之厚度：150 μηι 將孩夾鏈Τ、及雙軸延伸尼龍膜丨5 與直鎖狀低密度 聚乙烯膜50 4111進行乾式貼合而成之膜，以附夾鏈帶三方 製袋機進行製袋，而製得附易撕開性夾鏈帶之包裝袋。最 後’於失鍵帶之條帶部及薄壁部形成V字形之切口。 [實施例2] 除了薄壁部之長度以外，其餘皆仿照實施例1，製得圖i # 及圖2所不之附易撕開性夾鏈帶之包裝袋。實施例2中使用 之樹脂及薄壁部之長度如下。 失鏈帶··聚丙烯（密度 9〇〇 kg/m3，MFR 7.0 g/10 min) 122325.doc -30- 200824975 薄壁部·聚丙烯（密度 900 kg/m3，MFR 7·0 g/10 min) 薄壁部之長度（雄構件）：5 mm 薄壁部之長度（雌構件）：5 mm 第一凸狀部、第二凸狀部之厚度：25〇μηι 薄壁部之厚度：100 μιη 本體之厚度·· 150 μηι [實施例3 ] … ’除了失鏈帶所使用之樹脂以外，其餘皆仿照實施例2， 製传附易撕開性夾鏈帶之包裝袋。實施例3中使用之樹脂 及薄壁部之長度如下。 爽鍵W ·低密度聚乙烯（密度926 kg/m3，MFR 1.5 g/l〇 min) 薄 i 邛·聚丙烯（密度 900 kg/m3，MFR 7 〇 g/1〇 min) 薄壁部之長度（雄構件）：5mm 薄壁部之長度（雌構件）：5 mm 第凸狀部、第二凸狀部之厚度：250 μιη 薄壁部之厚度：100 μιη 本體之厚度·· 150 μηι ’ [實施例4] u除了失鏈帶所使用之樹脂以外，其餘皆仿照實施例2， :浔附易撕開性夾鏈帶之包裝袋。實施例4之材料及薄壁 部之長度如下。 失鍵Τ ·聚丙烯（密度926 kg/m3，MFR i 5 g/1〇瓜⑷ 溥壁邛·低密度聚乙烯（密度900 kg/m3，MFR 7〇岁1〇 122325.doc -31- 200824975 min) 薄壁部之長度（雄構件）：5 mm 薄壁部之長度（雌構件）：5 mm 第一凸狀部、第二凸狀部之厚度：25〇 薄壁部之厚度：100 μπι 本體之厚度：150 μιη [實施例5] ί i 使用僅於雌構件上具有薄壁部及第二凸狀部之夾鏈帶 (本發明之第三實施形態)’藉由共擠出而製得包含一對雄 :件：雌構件之圖4所示之夹鏈帶。實施例5中使用之樹 月曰、薄壁部之長度及各部之厚度如下。 夾鏈帶：低密度聚乙烯（密产 山度926 kg/m3，MFR 1.5 g/l〇 min) ί 壁部：聚丙烯（密度 9GGkW，MFR7.Gg/10min) 4壁部之長度（雌構件）：5 第-凸狀部'第二凸狀部之厚度：25〇_ 薄壁部之厚度·· 100 μηι 本體之厚度·· 150 μηι 將該夾鏈帶、及雙軸延伸尼 綮己掄越π 匕遽膜丨5 μηι與直鎖狀低密度 χκ乙~膑50 μιη進行乾式貼人 製袋機it；T制代 口而成之膜，以附夾鏈帶三方 ,,^ + 寸易撕開性夾鏈帶之包裝袋。最 後，於夾鏈帶之條帶部及薄 [實施例6] “形成V字形之切口。 除了薄壁部之長度以外， /、餘皆仿照實施例1，製得附 122325.doc -32- 200824975 易撕開性夾鏈帶之包裝袋。實施例6中使用之樹脂及薄壁 部之長度如下。 夾鏈帶··聚丙烯（密度 9〇〇 kg/m3，MFR 7.0 g/10 min) 薄壁部··聚丙烯（密度 900 kg/m3，MFR 7.0 g/i〇 min) 薄壁部之長度（雄構件）： 2 mm 薄壁部之長度（雌構件）：2 mm
第一凸狀部、第二凸狀部之厚度·· 25〇 μηι 薄壁部之厚度：1〇〇 μηι 本體之厚度：15〇 μπι [比較例1] 將於條帶部設有易拉開性樹脂層之夾鏈帶（參照日本特 開2〇〇4_244〇27之實施例丨）及上述膜，以附夾鏈帶三方製袋 機進製袋而製得附爽鏈帶之包裝袋。此外，將袋側部熱= 後，於夾鏈帶之條帶部與易拉開性樹脂層之中間位置形 切口 〇 [比較例2] 將於夾鏈帶之帶狀基材上設有撕條之爽鍵帶（參昭日本 特開2_-276925之圖12)及上述膜，以附夾鏈帶三方製袋 機進行製袋而製得附夾鏈帶之袋。此外，將袋側部熱 後’於開封鈕之兩端部形成切口。 、、 [比較例3] 除了薄壁部之長度以外 易撕開性夾鏈帶之包裝袋 部之長度如下。 一餘白仿照實施例1，製得附 比較例3中使用之樹脂及薄壁 122325.doc •33 - 200824975 夾鏈帶：聚丙烯（密度 900 kg/m3，MFR 7.0 g/10 min) 薄壁部··聚丙烯（密度 900 kg/m3，MFR 7.0 g/10 min) 薄壁部之長度（雄構件）：〇·4 mm 薄壁部之長度（雌構件）·· 〇·4 mm 第一凸狀部、第二凸狀部之厚度：25〇 μιη 薄壁部之厚度：100 μηι 本體之厚度：150 μιη [比較例4] 除了不設置第一凸狀部及第二凸狀部及薄壁部以外，製 造將厚度設為與本體之厚度相同之夾鏈帶，然後以三方製 袋機進行製袋而製得附夾鏈帶之包裝袋。比較例4中使用 之樹脂及薄壁部之長度如下。 夾鏈帶：聚丙烯（密度 900 kg/m3，MFR 7.0 g/10 min) 薄壁部：聚丙烯（密度 900 kg/m3，MFR 7.0 g/10 min) 薄壁部之長度（雄構件）：2 mm 薄壁部之長度（雌構件）：2 mm 薄壁部之厚度：1〇〇 μιη 本體之厚度：200 μιη 實施例1至實施例5及比較例1，係以從袋側部之切口將 内外之膜撕開之方式開封。 比較例2係拉扯撕條（薄壁部）端部之2處切口相夾之部 分’而將袋體之膜與撕條（薄壁部）同時撕斷。 [拉開部分之階差（易拿度）之評估] Α :有階差（易拿） 122325.doc -34- 200824975 有時會無階差（有時會不好拿） [撕開抗性之評估] A :能夠輕鬆從切口部撕斷 月匕夠彳欠切口部以小幅抗性撕斷 c :撕斷時有抗性 [碎屑之評估] A ··撕斷部未產生碎屑 B :撕斷部產生碎屑
實施例1至實施例6毫無撕開抗性，能夠輕易將包裝袋開 封。此外，開封時未產生碎屬。 比較例1在撕開抗性方面雖無問題，但開封時產生碎 屑。比較例2之撕開抗性大且不易開封，但未產生碎屑。 比較例3因薄壁部之長度較短，故撕開抗性大且不易開 封。比較例4因薄壁部之兩側部分較薄，撕開時會同時被 撕斷，故無法呈直線拉開。 122325.doc •35- 200824975 【圖式簡單說明】 圖1係表示本發明之第一實施形態相關之附夾鏈帶之包 裝袋之正面圖。 圖2係圖1之Ιΐ-π剖面圖。 圖3係表示本發明之第一實施形態相關之點密封步驟之 剖面圖。 圖4係在圖3的點密封步驟結束後之側密封部中之薄壁部 之剖面圖。 圖5係第二實施形態相關之附夾鏈帶之包裝袋之剖面 圖。 圖6係第三實施形態相關之附夾鏈帶之包裝袋之剖面 圖。 圖7係表示圖2之變形例之剖面圖。 圖8係表示圖3之點密封步驟之變形例之剖面圖。 圖9係表示圖3之點密封步驟之變形例之剖面囷 圖1 〇係表示圖3之點密封步驟之變形例 J义釗面圖。 圖11係表示圖3之點密封步驟之變形例之 口】面圖。 【主要元件符號之說明】 1A、IB、1C 包裝袋 2 袋體 3A、3B、3C 夾鏈帶 4 製造裝置 21 側密封部 22 頂封部 122325.doc -36 - 200824975 23 開口部 24 基材膜 25 凹口 31 咬合部 32 雄構件 33 雌構件 34 肋條 41、42 點密封棒 43 凸部 43A 凸部之端面 43B 短邊 43C 長邊 44、45 凹部 241 密封劑層 242 基材層 321 雄構件之帶狀基部 322 頭部 323 連結部 331 雌構件之帶狀基部 332 第一鉤部 333 第二鉤部 3211 本體 3212 第一凸狀部 3212A 第一凸狀部之面 122325.doc -37- 200824975 3212B 第一凸 3212C 第一凸 3213 薄壁部 3213A 雄構件 3214 第二凸 3214A 第二凸 3214B 第二凸 3214C 第二凸 3311 本體 3312 第一凸 3312A 第一凸 3312B 第一凸 3312C 第一凸 3313 薄壁部 3313A 薄壁部 3314 第二凸 3314A 第二凸 3314B 第二凸 3314C 第二凸 狀部之基材膜側之面 狀部之咬合部側之面 之薄壁部之面 狀部 狀部之面 狀部之基材膜側之面 狀部之咬合部側之面 狀部 狀部之面 狀部之基材膜側之面 狀部之咬合部側之面 之面 狀部 狀部之面 狀部之基材膜側之面 狀部之咬合部側之面 122325.doc -38-

Claims (1)

  1. 200824975 十、申請專利範圍： 1· 一 =撕開性夾鏈帶，其係具備—對雄構件及雌構件相 互乂口之，父合部及各自連接於前述咬合部之帶狀基部， 且安裝於包裳袋之袋體内面者，其特徵在於包含： 本體，其係前述帶狀基部中至少一方設有前述咬合部 弟凸狀部，其係設於該本^ q σ _ 體更厚者； & 4本
    /薄壁部，其係設於該第一凸狀部之開口部側，比前述 第一凸狀部及前述本體更薄者；及 第-凸狀部’其係設於該薄壁部之開口部側，比前 薄壁部及前述本體更厚者； 則述弟一凸狀部與前述第二凸狀部之各自對 袋體内面之對向面係位於大致同—面，在相對於該= 向面後退之位置設置前述薄壁部而形成階差；、、 前述薄壁部係撕開誘導片。 2·如請求項1之易撕開性夾鏈帶，其中 ▲前述雄構件及前述雌構件各自之前述帶狀基部包含： 引述本體月述第一凸狀部、前述薄壁部及前述 狀部。 布一凸 3. 如請求項2之易撕開性夾鏈帶，其中 設於前述雄構件及前述雌構件之前述薄壁部中 薄壁部之長度與另一方薄壁部之長度不同。 4. 如請求項1之易撕開性夾鏈帶’其中 122325.doc 200824975 前述雄構件或前述雌構件中任一方之前述帶狀基部々 含：前述本體、前述第一凸狀部、前述薄壁部及二包 二凸狀部； L弟 另一方之前述帶狀基部包含：前述本體及前述第一 狀部。 凸 5·如請求項1之易撕開性夾鏈帶，其中 具有與前述第一凸狀部及前述第二凸狀部之厚度相同 高度之一條或數條之肋條設在比前述本體之前述^合部 更非開口部側。 ° 6·如請求項1之易撕開性夾鏈帶，其中 前述薄壁部之厚度為〇·12ηπη以下； 别述第一凸狀部及前述第二凸狀部之厚度為〇·2〇仿瓜 以上1 mm以下。 7·如請求項1之易撕開性夾鏈帶，其中 如述薄壁部之寬度為〇 · 5 nim以上5 mm以下。 8·如請求項1之易撕開性夾鏈帶，其中 月il述第一凸狀部、前述第二凸狀部及前述薄壁部係以 無規則聚丙烯形成。 9·如請求項1之易撕開性夾鏈帶，其中 前述第一凸狀部及第二凸狀部係以同種樹脂形成； 月II述第一凸狀部及第二凸狀與前述薄壁部係以異種樹 脂形成； 鈿述第一凸狀部及第二凸狀部與前述本體係以異種樹 脂形成。 122325.doc -2- 200824975 I 0 ·如請求項1之易撕開性失鏈帶，其中 前述第一凸狀部、前述第二凸狀部及前述薄壁部係以 同種樹脂形成； 前述第一凸狀部、前述第二凸狀部及前述薄壁部與前 述本體係以異種樹脂形成。 II ·如晴求項1之易撕開性夾鍵帶，其中 前述第了凸狀部、前述第二凸狀部、前述薄壁部及前 述本體係各自以異種樹脂形成。 12·如請求項1至11中任一項之易撕開性夾鏈帶，其中 在安裝於前述第一凸狀部、前述第二凸狀部及前述本 體之袋體内面之側的面上設有密封層。 13·如請求項12之易撕開性夾鏈帶，其中 形成前述密封層之樹脂係熔點比形成前述第一凸狀 部、前述第二凸狀部及前述本體之樹脂低，且含有以下 之（A)及（B)者： (A) 密度為920 kg/m3以下、MFR為5.0 g/ΙΟ分鐘以下之 金屬茂系直鏈低密度聚乙烯50質量％以上1 〇〇質量％以 下。 (B) 包含丙烯及碳數4〜8之α_烯烴共聚物之組成物〇質量 %以上5 0質量。/。以下。 14· 一種易撕開性夾鏈帶之製造方法，其特徵在於：其係製 造如請求項1至13中任一項之易撕開性夾鏈帶者，且 藉由共同擠出，以單一製程製造包含前述咬合部之前 述本體、4述第一凸狀部、第二凸狀部及前述薄壁部。 122325.doc 200824975 15. —種附易撕開性夾鏈帶 請求項㈣中任—項之：:…其特徵在於包含··如 撕開性夾鏈帶之袋體； 文衣有4易 在前述袋體之内面、對向於前述袋體内 面及與該薄壁部之面交叉 土邛之 ^ 之則返弟一凸狀部之面鱼針 弟二凸狀部之面之間形成有空隙。 〃，述 16.如請求項15之附易撕開性夾鏈帶 於該包裝袋之與前述易撕開性夹:帶;叉之中方… 側密封部； 《万向形成 則述側密封部之前述薄 更内側之前述薄壁部更寬廣㈣寬度^比料侧密封部 17. -種附易撕開性夾鏈帶之包裳袋 於··並係掣袢^ ▲主 放置其特徵在 -係“如睛求項16之附易任 者，且包含·· ^又鏈Y之包装袋 一對點密封棒，苴田丨”茂_ 部； 〃用以屋^述側密封部之前述薄壁 前述—對點密封棒之至少_方 以上的高度之凸部。 ”有耵述空隙高度 18·如請求項17之附易撕開 其中 ▼之包裝袋之製造裝置-， 則述-對點密封棒具有前述凸部 同的複數種類。 ^ ^面大小各自不 19. -種附易撕開性夾鏈帶之包 於··其係使用如Ik方法，其特徵在 4項17之附易撕開性失鏈帶之包裝袋 122325.doc 200824975 之製造裝置製造者；且 20. 在壓扁前述薄壁部時，使前述凸部對準前述薄壁部之 位置’而從前述薄壁部之中心向外側炫化壓爲。 一種附易撕開性夾鏈帶之包襄袋之製造方法，其特徵在 於：其係使用如請求項18之附易撕開性夹鏈帶之包裝袋 之製造裝置製造者，且 前述-對點密封棒具有前述凸部之抵接面大小各自不 同的複數種類； 從前述凸部之抵接面大小較小之 心』么封棒起依序密 封0 122325.doc
TW96123867A 2006-09-22 2007-06-29 易撕開性夾鏈帶及其製造方法、附易撕開性夾鏈帶之包裝袋及其製造裝置與製造方法 TWI399326B (zh)

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US8550715B2 (en) * 2010-01-19 2013-10-08 Illinois Tool Works Inc. Zipper with intermeshing flange contours cross-reference to related applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085393B2 (en) 2009-10-19 2015-07-21 Idemitsu Unitech Co., Ltd. Easy to open zipper tape, and packaging bag with easy to open zipper tape

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JPWO2008035494A1 (ja) 2010-01-28
US8540428B2 (en) 2013-09-24
WO2008035494A1 (fr) 2008-03-27
CN101522538A (zh) 2009-09-02
EP2103541A1 (en) 2009-09-23
KR20090054455A (ko) 2009-05-29
US20100074562A1 (en) 2010-03-25
CN101522538B (zh) 2012-06-13
EP2103541A4 (en) 2014-01-08
CA2664068A1 (en) 2008-03-27
KR101344985B1 (ko) 2013-12-24
TWI399326B (zh) 2013-06-21

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