TW201636275A - 用於製造具有使用可膨脹心軸之配件的可撓性容器之方法 - Google Patents

用於製造具有使用可膨脹心軸之配件的可撓性容器之方法 Download PDF

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Publication number
TW201636275A
TW201636275A TW105110814A TW105110814A TW201636275A TW 201636275 A TW201636275 A TW 201636275A TW 105110814 A TW105110814 A TW 105110814A TW 105110814 A TW105110814 A TW 105110814A TW 201636275 A TW201636275 A TW 201636275A
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Taiwan
Prior art keywords
sealing
fitting
neck
flexible container
collar
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Application number
TW105110814A
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English (en)
Inventor
肯尼斯Ｒ 威爾克斯
萊恩Ｓ 加斯頓
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陶氏全球科技有限責任公司
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Publication of TW201636275A publication Critical patent/TW201636275A/zh

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Classifications

    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
    • 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
    • B29C66/40—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
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B29C66/634—Internally supporting the article during joining using an inflatable core
    • 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
    • B29C66/712—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 the composition of one of the parts to be joined being different from the composition of the other part
    • 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
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • B29C66/73116—Melting point of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part
    • 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
    • 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
    • B29C66/81423—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 concave
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91933—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined higher than said fusion temperature
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91935—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined lower than said fusion temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8215—Tensile tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Bag Frames (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

本發明提供一種製造可撓性容器之方法。在一實施例中，所述方法包含(A)提供可撓性容器。所述可撓性容器具有(i)主體及(ii)頸部。所述方法包含(B)將配件置放至所述頸部。所述配件具有頂部部分及基體。所述配件由聚合材料構成。所述方法包含(C)將心軸插入至所述配件中。所述心軸包含由彈性體材料構成之可膨脹套環。所述方法包含(D)使所述套環徑向向外膨脹以接觸所述基體之內表面。所述方法包含(E)用一對對置的密封條將所述基體密封至所述頸部上。

Description

用於製造具有使用可膨脹心軸之配件的可撓性容器之方法
本發明係有關一種製造具有分配配件之可撓性容器及尤其具有分配配件之自立可撓性容器的方法。
已知可撓性包裝與固體模製塑膠包裝容器相比會為產品製造商、零售商及消費者提供顯著價值及持續性益處。可撓性包裝提供許多消費者便利及益處，包含延長的存放期、易於儲存、可微波性及再填充性。已證實可撓性包裝需要較少能源來形成，且在棄置期間形成較少排放物。
可撓性包裝包含具有裝有角撐的主體區段之可撓性容器。此等裝有角撐的可撓性容器目前使用可撓性膜製造，所述可撓性膜經摺疊以形成角撐且以周邊形狀熱密封。裝有角撐的主體區段打開以形成具有正方形橫截面或矩形橫截面之可撓性容器。角撐於容器底部處封端以形成實質上平坦基體，在容器經部分或完全填充時提供穩定性。角撐亦於容器頂部處封端以形成用於接收硬質配件及閉合件之開放頸部。
用於製造具有硬質配件之裝有角撐的可撓性容 器的習知程序具有缺點。配件需要強到足以經受密封製程期間的熱量及由對置密封條賦予之壓迫力的材料及厚度。配件材料必須亦與容器膜材料相容以便形成熱密封焊縫。
對於具有兩塊以上面板之可撓性容器而言，基體為舟形或基體有相隔180°取向之延伸徑向翅片的配件不實用，因為此等配件之基體幾何形狀不匹配具有三塊、四塊或更多塊面板之容器的幾何形狀。
存在對於製造在安裝期間不使配件變形或畸形之裝有角撐的可撓性容器之方法的需求。另外存在對於製造具有薄壁配件及/或可撓性配件之裝有角撐的可撓性容器之方法的需求。
本發明提供一種製造可撓性容器之方法。在一實施例中，所述方法包含(A)提供可撓性容器。所述可撓性容器具有(i)主體及(ii)頸部。所述方法包含(B)將配件置放至頸部。所述配件具有頂部部分及基體。所述配件由聚合材料構成。所述方法包含(C)將心軸插入至所述配件中。所述心軸包含由彈性體材料構成之可膨脹套環。所述方法包含(D)使所述套環徑向向外膨脹以接觸所述基體之內表面。所述方法包含(E)用一對對置的密封條將所述基體密封至所述頸部上。
本發明之一優點為一種將配件氣密密封至可撓性容器之頸部上且減少所述配件封口處之褶皺的方法。
本發明之一優點為一種在密封至可撓性容器期間不使配件變形、扭曲或損壞之製造方法。
本發明之一優點為一種介於配件與可撓性容器面板之間的密封強度改進之可撓性容器。
本發明之一優點為一種在安裝期間維持配件形狀之方法。
本發明之一優點為具有用減少量之聚合材料製得之配件的可撓性容器之製造。
本發明之一優點為一種製造具有薄壁配件之可撓性容器的方法。
10‧‧‧可撓性容器
10A-10A‧‧‧線
10B-10B‧‧‧線
10D-10D‧‧‧線
10F-10F‧‧‧線
11‧‧‧共同周邊
12‧‧‧頂部把手
12a‧‧‧上部把手部分
13‧‧‧支腳
14‧‧‧底部把手
15‧‧‧支腳
16‧‧‧把手開口
18‧‧‧第一角撐面板
20‧‧‧第二角撐面板
22‧‧‧前面板/前側面板
24‧‧‧後面板/後側面板
26‧‧‧底部節段
26a‧‧‧底部面板/底部表面/前面板底部表面/底部節段面板
26b‧‧‧底部面板/底部表面/底部節段面板
26c‧‧‧底部面板/底部表面/後面板底部表面/底部節段面板
26d‧‧‧底部面板/底部表面/底部節段面板
28‧‧‧頂部節段
28a‧‧‧頂部面板
28b‧‧‧頂部面板
28c‧‧‧頂部面板
28d‧‧‧頂部面板
29a‧‧‧內部邊緣
29b‧‧‧內部邊緣
29c‧‧‧內部邊緣
29d‧‧‧內部邊緣
30‧‧‧頸部
31‧‧‧外部邊緣
33‧‧‧底部密封區域
34a‧‧‧死機器褶
34b‧‧‧死機器褶
35a‧‧‧頂點
35c‧‧‧頂點
36‧‧‧蓋片部分
37a‧‧‧底部最遠端內部密封點/BDISP
37c‧‧‧底部最遠端內部密封點/BDISP
38‧‧‧蓋片
39a‧‧‧內部密封弧
39c‧‧‧內部密封弧
40a‧‧‧周邊錐形封口/第一周邊錐形封口
40b‧‧‧周邊錐形封口/第二周邊錐形封口
40c‧‧‧周邊錐形封口/第一周邊錐形封口
40d‧‧‧周邊錐形封口/第二周邊錐形封口
41‧‧‧周邊封口
42‧‧‧死機器褶
44‧‧‧頂端
46‧‧‧底端
47‧‧‧主體
48‧‧‧錐形過渡部分
49‧‧‧底部部分
50‧‧‧頸部側壁
51‧‧‧開放末端
54‧‧‧角撐
56‧‧‧角撐
60‧‧‧角撐摺疊線
62‧‧‧角撐摺疊線
64‧‧‧外封口
66‧‧‧4層部分
68‧‧‧2層部分
70‧‧‧配件
72‧‧‧基體
74‧‧‧頂部部分
75‧‧‧螺紋
77‧‧‧熱密封裝置
78a‧‧‧密封條
78b‧‧‧密封條
79a‧‧‧密封條
79b‧‧‧密封條
7A-7A‧‧‧線
80‧‧‧心軸
82‧‧‧心軸基體
82a‧‧‧通道
84‧‧‧鼻錐體
84a‧‧‧通道
86‧‧‧可膨脹套環
86a‧‧‧通道
88‧‧‧拉桿
90‧‧‧拉桿之遠端
92‧‧‧拉桿之近端
A‧‧‧第一線
B‧‧‧第二線
C‧‧‧第一線
D‧‧‧第二線
E‧‧‧箭頭
F‧‧‧頸部之寬度
G‧‧‧基體直徑
H‧‧‧側壁厚度
I‧‧‧底部區段
II‧‧‧主體區段
III‧‧‧錐形過渡區段
IV‧‧‧頸部區段
J‧‧‧直徑
K‧‧‧間隙
L‧‧‧箭頭
M‧‧‧直徑
N‧‧‧直徑
O‧‧‧箭頭
P‧‧‧箭頭
Q‧‧‧頂部部分直徑
R‧‧‧箭頭
S‧‧‧距離
T‧‧‧距離
U‧‧‧距離
V‧‧‧直徑
W‧‧‧距離
X‧‧‧第一方向
Y‧‧‧第二方向
Z‧‧‧角度
圖1為根據本發明之一實施例呈塌陷組態之可撓性容器之前向正視圖。
圖2為面板夾層結構之分解側向正視圖。
圖3為呈膨脹組態且根據本發明之一實施例之圖1之可撓性容器的透視圖。
圖4為根據本發明之一實施例之圖3之膨脹的可撓性容器之底部平面圖。
圖5為圖3之可撓性容器之頂部平面圖。
圖6為圖1之區域6之放大圖。
圖7為根據本發明之一實施例之配件之正視圖。
圖7A為沿圖7之線7A-7A獲取之配件之底部平面圖。
圖7B為根據本發明之一實施例插入至可撓性容器中之配件之透視圖。
圖8為根據本發明之一實施例具有可膨脹套環之心軸插入至配件中之密封裝置的透視圖。
圖8A為圖8中之心軸之分解圖。
圖9為根據本發明之一實施例心軸插入至可撓性容器之配件中之密封裝置的透視圖。
圖10A為沿圖9之線10A-10A獲取之心軸之截面圖。
圖10B為根據本發明之一實施例沿圖10A之線10B-10B獲取之心軸之前向正視圖。
圖10C為可膨脹套環徑向膨脹之圖10A之心軸的視圖。
圖10D為沿圖10C之線10D-10D獲取之心軸之前向正視圖。
圖10E為可膨脹套環徑向膨脹之10A之心軸的視圖。
圖10F為沿圖10E之線10F-10F獲取之心軸之前向正視圖。
圖11為根據本發明之一實施例之第一密封程序之透視圖。
圖11A為圖11之心軸、配件、頸部及密封條之放大前向正視圖。
圖12為根據本發明之一實施例之第二密封程序之透視圖。
圖12A為圖12之心軸、配件、頸部及密封條之放大前向正視圖。
圖13A為在第二密封步驟之後且根據本發明之一實施例之心軸及配件的截面圖。
圖13B為在第二密封步驟之後且根據本發明之一實施例之心軸及配件的截面圖。
圖14為根據本發明之一實施例配件安裝在可撓性容器中之可撓性容器的透視圖。
本發明提供一種製造可撓性容器之方法。在一實施例中，所述方法包含(A)提供可撓性容器。所述可撓性容器具有(i)主體及(ii)頸部。所述方法包含(B)將配件置放至頸部。所述配件具有頂部部分及基體。所述配件由聚合材料構成。所述方法包含(C)將心軸插入至所述配件中。所述心軸包含由彈性體材料構成之可膨脹套環。所述方法包含(D)使所述套環徑向向外膨脹以接觸所述基體之內表面。所述方法包含(E)用一對對置的密封條將所述基體密封至所述頸部上。
1. 可撓性容器
所述方法包含提供可撓性容器。可撓性容器可由兩塊、三塊、四塊、五塊、六塊或更多塊面板製備。每一面板由可撓性多層膜構成。在一實施例中，可撓性容器10具有塌陷組態(如圖1中所展示)且具有膨脹組態(圖3、4、5中所示)。圖1展示出，可撓性容器10具有底部區段I、主體區段II、錐形過渡區段III及頸部區段IV。在膨脹組態中，底部區段I形成底部節段26，如圖4中所示。主體區段II形成主體部分。錐形過渡區段III形成錐形過渡部分。頸部區段IV形成頸部部分。
在一實施例中，可撓性容器10由四塊面板製備，如圖1-6中所示。在製造製程期間，當一塊或多塊膜材料幅材被密封在一起時，形成面板。雖然幅材可為單獨片的膜材料，但應瞭解，介於幅材之間的任意數目之接縫可「預先製得」，如藉由摺疊源幅材中之一塊或多塊以形成接縫之作用來進行。舉例而言，若所期望的是由兩塊幅材代替四塊製造本發 明可撓性容器，則底部、左中心及右中心幅材可為單一摺疊之幅材，代替三塊單獨的幅材。類似地，一塊、兩塊或更多塊幅材可以用於製造每一相應的面板(亦即袋中袋組態或氣囊組態)。
圖2展示出四塊幅材在其穿過製造製程時在其形成四塊面板(呈「一上(one up)」組態)時之相對位置。為了清楚起見，所述幅材展示為四塊個別面板，所述面板分開且未製得熱封口。組成性幅材形成第一角撐面板18、第二角撐面板20、前面板22及後面板24。面板18-24為多層膜，如下文詳細論述。角撐摺疊線60及62展示在圖1及2中。
如圖2中所示，摺疊之角撐面板18、20置放在後面板24與前面板22之間以形成「面板夾層結構」。角撐面板18與角撐面板20對置。面板18-24之邊緣經組態，或以其他方式配置，以形成共同周邊11，如圖1中所展示。每一面板幅材之可撓性多層膜經組態，使得熱密封層面向彼此。共同周邊11包含底部密封區域，包含每一面板之底端。
當可撓性容器10呈塌陷組態時，可撓性容器呈壓扁的狀態或呈以其他方式排空的狀態。角撐面板18、20向內摺疊(圖1之虛線角撐摺疊線60、62)且由前面板22與後面板24包夾。
圖3-5展示出呈膨脹組態之可撓性容器10。可撓性容器10具有四塊面板，亦即前面板22、後面板24、第一角撐面板18及第二角撐面板20。四塊面板18、20、22及24形成主體區段II，且朝向頂端44延伸，且朝向朝向容器10之底端46延伸。區段III及IV(對應的錐形過渡區段、頸部 區段)形成頂部節段28。區段I(底部區段)形成底部節段26。
四塊面板18、20、22及24可各自由單獨的膜材料幅材構成。每一膜材料幅材之組成及結構可相同或不同。可替代地，一塊膜材料幅材亦可用於製備所有四塊面板以及頂部及底部節段。在另一實施例中，兩塊或更多塊幅材可用於製備每一面板。
在一實施例中，提供四塊膜材料幅材，一塊膜幅材用於每一對應的面板18、20、22及24。所述方法包含將每一膜之邊緣密封至鄰近膜幅材，以形成周邊封口41及周邊錐形封口40a-40d(40)(圖1、3、4、5)。周邊錐形封口40a-40d位於容器之底部節段26上，如圖4中所示，且具有內部邊緣29a-29f。周邊封口41位於容器10之側邊緣上，如圖3中所示。因此，所述方法包含形成密閉的底部區段I、密閉的主體區段II及密閉的錐形過渡區段III。
為了形成頂部節段28及底部節段26，四塊膜幅材於對應的末端處會聚在一起且被密封在一起。舉例而言，頂部節段28可由在錐形過渡區段III及頸部區段IV處密封在一起之面板的延伸部分界定。頂端44包含膜中界定頂部節段28之四塊頂部面板28a-28d(圖5)。底部節段26可由在底部區段I處密封在一起之面板之延伸部分界定。底部節段26亦可具有密封在一起之膜之四塊底部面板26a-26d，且亦可由面板在相對末端46處之延伸部分界定，如圖4中所示。
頸部部分可位於主體47之拐角或位於四塊面板中之一塊中。在一實施例中，頸部30位於頂部節段28之中 點處。頸部30可能(或可能不)經設定大小為小於主體區段II之寬度，使得頸部30可能具有小於頂部節段28之總面積的面積。頸部30之位置可為容器10之頂部節段28上的任何地方。
在一實施例中，頸部由兩塊或更多塊面板形成。在另一實施例中，頸部30由四塊面板形成。
在一實施例中，頸部經設定大小以容納廣口配件。「廣口配件」為直徑大於50mm之配件。
儘管圖1及3展示出具有頂部把手12及底部把手14之可撓性容器10，但應理解，可撓性容器10可製造成無把手或僅有一個把手。當可撓性容器10具有頂部把手12時，頸部30居中位於頂部節段28上位於把手基座之間以有助於易傾倒。
形成可撓性容器10之膜之四塊面板自主體區段II(形成主體47)延伸至錐形過渡區段III(形成錐形過渡部分48)，以形成頸部30(在頸部區段IV中)。膜之四塊面板亦自主體區段II延伸至底部區段I(形成底部部分49)。當可撓性容器10呈塌陷組態(圖1)時，頸部30之寬度F小於錐形過渡區段III之寬度。頸部30包含頸部側壁50。圖1及3展示出頸部側壁50形成開放末端51以便接入至可撓性容器內部。將面板密封在一起以形成密閉的底部區段I、密閉的主體區段II及密閉的錐形過渡區段III。適合的加熱程序之非限制性實例包含熱密封及/或超音波密封。當可撓性容器10呈膨脹組態時，頸部側壁50之開放末端51為開放的或以其他方式開封。當可撓性容器10呈塌陷組態時，開放末端51經開 封且為可打開的。開放末端51允許經由頸部側壁50及頸部30接入容器內部，如圖3及5中所示。
如圖1及3-4中所示，可撓性底部把手14可位於容器10之底端46，使得底部把手14為底部節段26之延伸部分。
每一面板包含對應的底部表面。圖4展示出四個三角形狀的底部表面26a-26d，每一底部表面為對應的膜面板之延伸部分。底部表面26a-26d構成底部節段26。四塊面板26a-26d在底部節段26之中點處聚集在一起。底部表面26a-26d諸如藉由使用熱密封技術來密封在一起，以形成底部把手14。舉例而言，可製得焊縫以形成底部把手14以及將底部節段26之邊緣密封在一起。適合的熱密封技術之非限制性實例包含熱棒密封、熱模密封、脈衝密封、高頻率密封或超音波密封方法。
圖4展示底部節段26。每一面板18、20、22、24具有存在於底部節段26中之對應的底部表面26a-26d。每一底部表面利用兩個對置的周邊錐形封口40a-40d接界。每一周邊錐形封口40a-40d延伸自對應的周邊封口41。前面板22與後面板24之周邊錐形封口具有內部邊緣29a-29d(圖4)及外部邊緣31(圖6)。周邊錐形封口40a-40d在底部密封區域33處會聚(圖1、圖4、圖6)。
前面板底部表面26a包含由第一周邊錐形封口40a之內部邊緣29a界定的第一線A及由第二周邊錐形封口40b之內部邊緣29b界定的第二線B。第一線A與第二線B在底部密封區域33中之頂點35a處相交。前面板底部表面26a 具有底部最遠端內部密封點37a(「BDISP 37a」)。BDISP 37a位於內部邊緣上。
頂點35a與BDISP 37a分隔0毫米(mm)至小於8.0mm之距離S。
在一實施例中，後面板底部表面26c包含與前面板底部表面26a上之頂點35a相似的頂點35c。後面板底部表面26c包含由第一周邊錐形封口40c之內部邊緣29c界定的第一線C及由第二周邊錐形封口40d之內部邊緣29d界定的第二線D。第一線C與第二線D在底部密封區域33中之頂點35c處相交。後面板底部表面26c具有底部最遠端內部密封點37c(「BDISP 37c」)。BDISP 37c位於內部邊緣上。頂點35c與BDISP 37c分隔0毫米(mm)至小於8.0mm之距離T。
應理解以下關於前面板底部表面26a之描述同樣適用於後面板底部表面26c，且後面板底部表面26c之參考數字展示在鄰近閉合的圓括號中。
在一實施例中，BDISP 37a(37c)位於內部邊緣29a(29c)與29b(29d)相交處。BDISP 37a(37c)與頂點35a(35c)之間的距離S(距離T)為0mm。
在一實施例中，內部密封邊緣自內部邊緣29a、29b(29c、29d)發散，以形成內部密封弧39a(前面板)及內部密封弧39c(後面板)，如圖4及6中所示。BDISP 37a(37c)位於內部密封弧39a(39c)上。頂點35a(35c)與BDISP 37a(37c)分隔距離S(距離T)，所述距離S(距離T)為大於0mm、或0.5mm、或1.0mm、或2.0mm、或2.6mm、或3.0mm、或3.5mm、或3.9mm至4.0mm、或4.5mm、或 5.0mm、或5.2mm、或5.3mm、或5.5mm、或6.0mm、或6.5mm、或7.0mm、或7.5mm、或7.9mm。
在一實施例中，頂點35a(35c)與BDISP 37a(37c)分隔距離S(距離T)，所述距離S(距離T)為大於0mm至小於6.0mm。
在一實施例中，自頂點35a(35c)至BDISP 37a(37c)之距離S(距離T)為大於0mm、或0.5mm、或1.0mm、或2.0mm至4.0mm或5.0mm或小於5.5mm。
在一實施例中，頂點35a(35c)與BDISP 37a(37c)分隔距離S(距離T)，所述距離S(距離T)為3.0mm、或3.5mm、或3.9mm至4.0mm、或4.5mm、或5.0mm、或5.2mm、或5.3mm、或5.5mm。
在一實施例中，遠端內部密封弧39a(39c)之曲率半徑為0mm、或大於0mm、或為1.0mm至19.0mm、或20.0mm。
在一實施例中，每一周邊錐形封口40a-40d(外部邊緣)與來自對應的周邊封口41(外部邊緣)之延伸線形成角度Z，如圖1中所展示。角度Z為40°、或42°、或44°、或45°至46°、或48°、或50°。在一實施例中，角度Z為45°。
底部節段26包含一對在底部表面26a-26d之基本上延伸部分處形成的角撐54及56。角撐54及56可能有助於可撓性容器10豎直站立之能力。此等角撐54及56由來自接合在一起以形成角撐54及56之每一底部表面26a-26d之過量材料形成。角撐54及56之三角形部分包括被密封在一起且延伸至其對應角撐的兩塊鄰近底部節段面板。舉例而言， 鄰近底部表面26a及26d沿著相交邊緣延伸超出其底部表面之平面且被密封在一起以形成第一角撐54之一側。類似地，鄰近底部表面26c及26d沿著相交邊緣延伸超出其底部表面之平面且被密封在一起以形成第一角撐54之另一側。同樣地，第二角撐56類似地由鄰近底部表面26a-26b及26b-26c形成。角撐54及56可接觸底部節段26之一部分，其中角撐54及56可接觸覆蓋其之底部表面26b及26d，而底部節段面板26a及26c在底端46處保持暴露。
如圖3-4中所示，可撓性容器10之角撐54及56可進一步延伸至底部把手14。在其中角撐54及56鄰近於底部節段面板26b及26d安置之態樣中，底部把手14亦可跨越底部表面26b及26d延伸，在面板對18及20之間延伸。底部把手14可沿著介於前面板22與後面板24之間的底部節段26之中心部分或中點安置。
頂部把手12及底部把手14可包括密封在一起以用於四面板容器10之至多四層膜。當超過四塊面板用於製備容器時，把手12、14可包含用於製造容器之相同數目的面板。把手12、14中所有四層並未利用熱密封方法完全密封在一起之任何部分可以任何適當方式黏著在一起，諸如藉由黏性封口，以形成完全密封的多層把手。可替代地，頂部把手12可由少至來自僅一塊面板之單一膜層製備或可由來自兩塊面板之僅兩個膜層製備。把手12、14可具有任何適合的形狀且通常將採用膜末端之形狀。舉例而言，膜幅材通常當展開時具有矩形形狀，使得其末端具有筆直的邊緣。因此，把手12、14將亦具有矩形形狀。
另外，底部把手14可在其中含有經設定大小以適配使用者之手的把手開口16或切口區段，如圖1中可見。把手開口16可為適宜於適配手之任何形狀，且在一個態樣中，把手開口16可具有大體上卵形形狀。在另一實施例中，把手開口16可具有大體上矩形形狀。另外，底部把手14之把手開口16亦可具有蓋片38，所述蓋片包括會形成把手開口16之經切割材料。為了界定把手開口16，底部把手14可具有自多層底部把手14沿著三個側面或部分切出同時保持連接在第四側面或下部部分處之區段。此提供材料蓋片38，其可由使用者經由把手開口16推動且在把手開口16之邊緣上方摺疊，以在接觸使用者手之邊緣處提供相對光滑的抓握表面。若材料蓋片38被完全切出，則此將留下可能相對銳利且有可能當手放在彼處時割到或刮擦手之暴露的第四側面或下部邊緣。
此外，底部把手14中連接於底部節段26之一部分可含有經提供用於底部把手14從而以相同方向一致地摺疊的死機器褶42或刻痕線，如圖3中所示。機器褶42可包括摺疊線，所述摺疊線允許以第一方向X朝向前面板22摺疊且限制朝向後面板24以第二方向Y摺疊。如在整個本申請案中使用之術語「限制」可意謂其與在相對方向(諸如第二方向)上相比較易於在一個方向(或第一方向)上移動。機器褶42可使得底部把手14在第一方向上一致地摺疊，因為其可被認為在底部把手14中提供大體上永久的摺疊線，所述摺疊線傾向於在第一方向X上而非在第二方向Y上摺疊。底部把手14之此機器褶42可服務多個目的，一個目的為當使用者自容器 10轉移產品時其可抓握底部把手14且所述機器褶將易於在第一方向X上彎曲以有助於傾倒。第二，當可撓性容器10以豎直位置儲存時，底部把手14中之機器褶42促進底部把手14在第一方向X上沿著機器褶42摺疊，使得底部把手14可在容器10下面鄰近底部節段面板26a之一摺疊，如圖4中所示。產品重量亦可向底部把手14施力，使得產品重量可進一步壓在底部把手14上且使底部把手14在第一方向X上維持摺疊位置。如本文將論述，頂部把手12亦可含有類似的機器褶34a、34b，所述機器褶亦允許所述頂部把手在與底部把手14相同的第一方向X上一致地摺疊。
另外，隨著可撓性容器10被排空且殘留較少產品，底部把手14可繼續提供支撐以有助於可撓性容器10無負載且不傾翻地保持豎直站立。由於底部把手14大體上沿著其在角撐面板對18及20之間延伸的整個長度密封，故其可有助於將角撐54及56(圖3、4)保持在一起且繼續提供支撐以使容器10甚至在容器10被清空時亦豎直站立。
如圖1、3及5中所見，頂部把手12可延伸自頂部節段28，且尤其可延伸自構成頂部節段28之四塊面板28a-28d。延伸至頂部把手12之膜之四塊面板28a-28d均密封在一起以形成多層頂部把手12。頂部把手12可具有U形，且尤其倒置U形，且水平上部把手部分12a具有由其延伸之兩對隔開的支腳13及15。支腳對13及15延伸自頂部節段28，鄰近頸部30。
當頂部把手12在垂直於頂部節段28之位置中延伸時，頂部把手12之一部分可在頸部30上方及在頂部節段 28上方延伸，且尤其整個上部把手部分12a可在頸部側壁50及頂部節段28上方。兩對支腳13及15以及上部把手部分12a共同構成圍繞把手開口之頂部把手12，所述把手開口允許使用者穿過把手開口放其手且抓握把手12之上部把手部分12a。
如同底部把手14一樣，頂部把手12亦可具有死機器褶34a、34b，所述死機器褶允許在第一方向上朝向前側面板22摺疊且限制在第二方向上朝向後側面板24摺疊，如圖5中所示。機器褶34a、34b可位於支腳對13、15中之每一者中處於封口開始之位置。頂部把手12可諸如用例如黏性黏著劑黏著在一起。頂部把手12中之機器褶34a、34b可允許頂部把手12傾斜以在與底部把手14相同的第一方向X上而非在第二方向Y上一致地摺疊或彎曲。如圖1、3及5中所示，頂部把手12可同樣地含有蓋片部分36，所述蓋片部分向上朝向頂部把手12之上部把手部分12a摺疊以形成頂部把手12之光滑抓握表面，如同底部把手14一樣，使得把手材料不銳利且可保護使用者的手免於在頂部把手12之任何銳利邊緣上被割到。
當容器10處於靜置位置時，諸如當其豎直站立在其底部節段26上時，如圖3中所示，底部把手14可在容器10下面沿著底部機器褶42在第一方向X上摺疊，使得其平行於底部節段26且鄰近底部面板26a，且頂部把手12將沿著其機器褶34a、34b在相同的第一方向X上自動摺疊，且頂部把手12之前表面平行於頂部節段28之面板28a。由於機器褶34a、34b，頂部把手12在第一方向X上摺疊，而非垂直於頂部節段28筆直地向上延伸。把手12及14均傾斜以在相同 的方向X上摺疊，使得在分配時，把手可在相同方向相對地平行於其對應的末端面板或末端節段摺疊以使得分配更容易且更受控。因此，在靜置位置中，把手12及14均大體平行於彼此摺疊。另外，容器10可甚至在底部把手14安置在豎直容器10下面之情況下亦豎直站立。
可撓性容器10之構造材料可包括食品級塑膠。舉例而言，可使用耐綸(nylon)、聚丙烯、聚乙烯(諸如高密度聚乙烯(HDPE)及/或低密度聚乙烯(LDPE))，如隨後所論述。塑膠容器10之膜可具有足以在製造、分配、產品存放期及消費者使用期間維持產品及封裝完整性之厚度及障壁特性。在一實施例中，可撓性多層膜之厚度為100微米(μm)、或200μm、或250μm至300μm、或350μm、或400μm。在一實施例中，膜材料亦可使得其在可撓性容器10中提供適當氛圍以維持至少約180天之產品存放期。所述膜可包括氧氣障壁膜，諸如在23℃及80%相對濕度(RH)下具有大於0至0.4cc/m2/atm/24小時之低氧氣透過率(OTR)的膜。另外，可撓性多層膜亦可包括水蒸氣障壁膜，諸如在38℃及90% RH下具有大於0至15g/m2/24小時之低水蒸氣透過率(WVTR)的膜。此外，可能需要使用尤其在密封層但不限於僅密封層中具有油及/或化學抗性之構造材料。可撓性多層膜可為可印刷的或可相容的以接收用於在可撓性容器10上展示標誌之壓敏性標記或其他類型標記。在一實施例中，膜亦可由非食品級樹脂製成以便製造材料不為食品之容器。
在一實施例中，每一面板由具有至少一個、或至少兩個或至少三個層之可撓性多層膜製備。可撓性多層膜為 彈性、可撓性、可變形且可彎曲的。每一面板18、20、22、24之可撓性多層膜之結構及組成可相同或不同。舉例而言，四塊面板18、20、22、24中之每一者可由單獨的幅材製成，每一幅材具有獨特結構及/或獨特組成、面漆或印記。可替代地，四塊面板18、20、22、24中之每一者可為相同結構及相同組成。
在一實施例中，每一面板18、20、22、24為具有相同結構及相同組成之可撓性多層膜。
可撓性多層膜可為(i)共擠多層結構或(ii)層壓物，或(iii)(i)與(ii)之組合。在一實施例中，可撓性多層膜具有至少三個層：密封層、外層及其間的連接層。連接層使密封層與外層鄰接。可撓性多層膜可包含一個或多個安置於密封層與外層之間的視情況存在之內層。
在一實施例中，可撓性多層膜為具有至少兩個、或三個、或四個、或五個、或六個、或七至八個、或九個、或十個、或十一個或更多個層之共擠膜。例如用於構造膜之一些方法係藉由鑄造共擠壓或吹塑共擠壓方法、黏著劑層壓、擠壓層壓、熱層壓及塗佈，諸如氣相沈積。此等方法之組合亦為可能的。除聚合材料以外，膜層亦可包括添加劑，諸如穩定劑、助滑添加劑、防黏添加劑、加工助劑、澄清劑、成核劑、顏料或著色劑、填充劑及增強劑及如包裝工業中常用之類似物。特別有用的是選擇具有適合的官能及/或光學特性之添加劑及聚合材料。
在另一實施例中，可撓性多層膜可包括其中兩塊或更多塊膜以一定方式黏著之氣囊，所述方式允許一個或多 個層在重大衝擊期間發生一定的分層，使得內部膜維持完整性且繼續容納容器之內含物。
可撓性多層膜由聚合材料構成。適用於密封層之聚合材料之非限制性實例包含烯烴類聚合物(包含任何線性或分支乙烯/C3-C10 α-烯烴共聚物)、丙烯類聚合物(包含塑性體及彈性體、無規丙烯共聚物、丙烯均聚物及丙烯抗衝擊共聚物)、乙烯類聚合物(包含塑性體及彈性體、高密度聚乙烯(「HDPE」)、低密度聚乙烯(「LDPE」)、線性低密度聚乙烯(「LLDPE」)、中密度聚乙烯(「MDPE」)、乙烯-丙烯酸或乙烯-甲基丙烯酸及其與鋅、鈉、鋰、鉀、鎂鹽之離聚物、乙烯乙酸乙烯酯共聚物及其摻合物。
適用於外層的聚合材料之非限制性實例包括用於製得層壓以及共擠膜之雙軸或單軸取向膜之彼等。一些非限制性聚合材料實例為雙軸取向之聚對苯二甲酸乙二酯(OPET)、單軸取向之耐綸(nylon)(MON)、雙軸取向之耐綸(BON)及雙軸取向之聚丙烯(BOPP)。適用於構築膜層以達成結構益處之其他聚合材料為聚丙烯(諸如丙烯均聚物、無規丙烯共聚物、丙烯抗衝擊共聚物、熱塑性聚丙烯(TPO)及其類似物、丙烯類塑性體(例如VERSIFYTM或VISTAMAXTM))、聚醯胺(諸如耐綸6；耐綸6,6；耐綸6,66；耐綸6,12；耐綸12；等)、聚乙烯降冰片烯、環狀烯烴共聚物、聚丙烯腈、聚酯、共聚酯(諸如經改質聚對苯二甲酸乙二醇酯(PETG))、纖維素酯、聚乙烯及乙烯共聚物(例如基於乙烯辛烯共聚物之LLDPE，諸如DOWLEXTM)、其摻合物及其多層組合。
適用於連接層的聚合材料之非限制性實例包含官能化乙烯類聚合物，諸如乙烯-乙酸乙烯酯(EVA)共聚物；順丁烯二酸酐接枝至聚烯烴之聚合物，諸如任何聚乙烯、乙烯-共聚物或聚丙烯；及乙烯丙烯酸酯共聚物，諸如乙烯丙烯酸甲酯(EMA)、含縮水甘油基乙烯共聚物；丙烯類及乙烯類之烯烴嵌段共聚物(OBC)，諸如INTUNETM(PP-OBC)及INFUSETM(PE-OBC)，兩者均可獲自陶氏化學公司(The Dow Chemical Company)及其摻合物。
可撓性多層膜可包含額外層，其可有助於結構完整性或提供特定特性。額外層可藉由直接手段或藉由使用連接至鄰近聚合物層之適當的連接層來添加。可向所述結構中添加可提供額外機械效能(諸如硬度或不透明度)之聚合物以及可提供氣體障壁特性或化學抗性之聚合物。
適用於視情況存在之障壁層的材料之非限制性實例包含偏二氯乙烯及丙烯酸甲酯、甲基丙烯酸甲酯或氯乙烯之共聚物(例如可購自陶氏化學公司之SARAN樹脂)；乙烯基乙烯乙烯醇(EVOH)共聚物；以及金屬箔(諸如鋁箔)。可替代地，經改質聚合膜，諸如蒸氣沈積鋁或氧化矽於諸如BON、OPET或取向聚丙烯(OPP)之膜上，可用於當用於層壓多層膜時獲得障壁特性。
在一實施例中，可撓性多層膜包含密封層，其選自LLDPE(以商標名DOWLEXTM(陶氏化學公司)出售)；單一位點LLDPE；實質上線性或線性乙烯α-烯烴共聚物，包含例如以商標名AFFINITYTM或ELITETM(陶氏化學公司)出售之聚合物；丙烯類塑性體或彈性體，諸如VERSIFYTM(陶 氏化學公司)；及其摻合物。視情況存在之連接層係選自乙烯類烯烴嵌段共聚物PE-OBC(以INFUSETM形式出售)或丙烯類烯烴嵌段共聚物PP-OBC(以INTUNETM形式出售)。外層包含大於50重量%樹脂，所述樹脂之熔點Tm比密封層中聚合物之熔點高25℃至30℃、或40℃，其中外層聚合物係選自樹脂，諸如VERSIFYTM或VISTAMAXTM、ELITETM、HDPE，或丙烯類聚合物，諸如丙烯均聚物、丙烯抗衝擊共聚物或TPO。
在一實施例中，可撓性多層膜為共擠壓的。
在一實施例中，可撓性多層膜包含密封層，其選自LLDPE(以商標名DOWLEXTM(陶氏化學公司)出售)；單一位點LLDPE；實質上線性或線性烯烴聚合物，包含例如以商標名AFFINITYTM或ELITETM(陶氏化學公司)出售之聚合物；丙烯類塑性體或彈性體，諸如VERSIFYTM(陶氏化學公司)；及其摻合物。可撓性多層膜亦包含聚醯胺外層。
在一實施例中，可撓性多層膜為共擠膜且包含：(i)密封層，其由具有低於105℃之第一熔融溫度(Tm1)的烯烴類聚合物構成；及(ii)外層，其由具有第二熔融溫度(Tm2)之聚合材料構成，其中Tm2-Tm1>40℃。
術語「Tm2-Tm1」為外層中聚合物之熔融溫度與密封層中聚合物之熔融溫度之間的差值，且亦稱為「△Tm」。在一實施例中，△Tm為41℃、或50℃、或75℃、或100℃至125℃、或150℃、或175℃、或200℃。
在一實施例中，可撓性多層膜為共擠膜，密封層 由乙烯類聚合物構成，所述乙烯類聚合物諸如乙烯及α-烯烴單體(諸如1-丁烯、1-己烯或1-辛烯)之線性或實質上線性聚合物或單一位點催化之線性或實質上線性聚合物，具有55℃至115℃之Tm及0.865至0.925g/cm3、或0.875至0.910g/cm3、或0.888至0.900g/cm3之密度，且外層由具有170℃至270℃之Tm的聚醯胺構成。
在一實施例中，可撓性多層膜為具有至少五個層之共擠膜及/或層壓膜，所述共擠膜具有以下各者：密封層，其由乙烯類聚合物構成，所述乙烯類聚合物諸如乙烯及α-烯烴共聚單體(諸如1-丁烯、1-己烯或1-辛烯)之線性或實質上線性聚合物或單一位點催化之線性或實質上線性聚合物，所述乙烯類聚合物具有55℃至115℃之Tm及0.865至0.925g/cm3、或0.875至0.910g/cm3、或0.888至0.900g/cm3之密度；及最外層，所述最外層由選自LLDPE、OPET、OPP(取向聚丙烯)、BOPP、聚醯胺及其組合之材料構成。
在一實施例中，可撓性多層膜為具有至少七個層之共擠膜及/或層壓膜。密封層由乙烯類聚合物構成，所述乙烯類聚合物諸如乙烯及α-烯烴共聚單體(諸如1-丁烯、1-己烯或1-辛烯)之線性或實質上線性聚合物或單一位點催化之線性或實質上線性聚合物，所述乙烯類聚合物具有55℃至115℃之Tm及0.865至0.925g/cm3、或0.875至0.910g/cm3、或0.888至0.900g/cm3之密度。外層由選自LLDPE、OPET、OPP(取向聚丙烯)、BOPP、聚醯胺及其組合之材料構成。
在一實施例中，可撓性多層膜為共擠(或層壓)五層膜或共擠(或層壓)七層膜，其具有至少兩個含乙烯類 聚合物之層。乙烯類聚合物在各層中可相同或不同。
在一實施例中，可撓性多層膜包含密封層，所述密封層由具有65℃至低於125℃之熱密封起始溫度(HSIT)的乙烯類聚合物、或乙烯及α-烯烴單體(諸如1-丁烯、1-己烯或1-辛烯)之線性或實質上線性聚合物或單一位點催化之線性或實質上線性聚合物構成。申請人發現，具有HSIT為65℃至低於125℃之乙烯類聚合物的密封層有利地使得緊固封口能夠形成且圍繞可撓性容器之複雜周邊緊固密封之邊緣。HSIT為65℃至低於125℃之乙烯類聚合物為穩固的密封劑，其亦允許較好地密封至易於損壞之硬質配件上。HSIT為65℃至125℃之乙烯類聚合物在容器製造期間允許較低熱密封壓力/溫度。較低熱密封壓力/溫度在角撐之摺疊點處引起較低應力，且在頂部節段及底部節段中之膜的接合處引起較低應力。此藉由在容器製造期間減少褶皺來改進膜完整性。在摺疊及接縫處減少應力會改進成品容器機械效能。低HSIT乙烯類聚合物在低於將引起外層受損之溫度的溫度下密封。
在一實施例中，可撓性多層膜為共擠及/或層壓五層或共擠(或層壓)七層膜，其具有至少一個含有選自LLDPE、OPET、OPP(取向聚丙烯)、BOPP及聚醯胺之材料之層。
在一實施例中，可撓性多層膜為共擠及/或層壓五層或共擠(或層壓)七層膜，其具有至少一個含有OPET或OPP之層。
在一實施例中，可撓性多層膜為共擠(或層壓)五層或共擠(或層壓)七層膜，其具有至少一個含有聚醯胺 之層。
在一實施例中，可撓性多層膜為七層共擠(或層壓)膜，其具有由乙烯類聚合物或乙烯及α-烯烴單體(諸如1-丁烯、1-己烯或1-辛烯)之線性或實質上線性聚合物或單一位點催化之線性或實質上線性聚合物構成之密封層，所述聚合物之Tm為90℃至106℃。外層為具有170℃至270℃之Tm之聚醯胺。膜之△Tm為40℃至200℃。膜具有內層(第一內層)，其由不同於密封層中之乙烯類聚合物的第二乙烯類聚合物構成。膜具有由與外層中之聚醯胺相同或不同之聚醯胺構成之內層(第二內層)。七層膜具有100微米至250微米之厚度。
圖6展示圖1之底部密封區域33(區域6)及前面板26a之放大圖。對應的角撐面板18、20之摺疊線60及62分隔距離U，所述距離U為0mm、或大於0mm、或0.5mm、或1.0mm、或2.0mm、或3.0mm、或4.0mm、或5.0mm至12.0mm、或大於60.0mm(例如用於較大容器)。在一實施例中，距離U為大於0mm至小於6.0mm。圖6展示在頂點35a處相交線B(由內部邊緣29b界定)之線A(由內部邊緣29a界定)。BDISP 37a在遠端內部密封弧39a上。頂點35a與BDISP 37a分隔距離S，所述距離S之長度為大於0mm、或1.0mm、或2.0mm、或2.6mm、或3.0mm、或3.5mm、或3.9mm至4.0mm、或4.5mm、或5.0mm、或5.2mm、或5.5mm、或6.0mm、或6.5mm、或7.0mm、或7.5mm、或7.9mm。
在圖6中，形成外封口64，其中四個周邊錐形封口40a-40d在底部密封區域33中會聚。外封口64包含4層部 分66，其中每一面板之一部分被熱密封至每一其他面板之一部分上。每一面板代表4層熱封口中之1層。外封口64亦包含2層部分68，其中兩塊面板(前面板22及後面板24)被密封在一起。因此，如本文所用之「外封口」為其中周邊錐形封口40a-40d會聚經歷後續熱密封操作(且總共經歷至少兩個熱密封操作)之區域。外封口64位於周邊錐形封口40a-40d中且不延伸至可撓性容器10之腔室中。
在一實施例中，頂點35a位於外封口64上方。頂點35a與外封口64分開，且不接觸所述外封口。BDISP 37a位於外封口64上方。BDISP 37a與外封口64分開，且不接觸所述外封口。
在一實施例中，頂點35a位於BDISP 37a與外封口64之間，其中外封口64不接觸頂點35a且外封口64不接觸BDISP 37a。
頂點35a至外封口64之頂部邊緣之間的距離被定義為距離W，展示在圖6中。在一實施例中，距離W之長度為0mm、或大於0mm、或2.0mm、或4.0mm至6.0mm、或8.0mm、或10.0mm或15.0mm。
當超過四塊幅材用於製造容器時，外封口64之部分68可為4層、或6層或8層部分。
在一實施例中，可撓性容器10具有90%、或95%至100%之垂直降落測試通過率。垂直降落測試如下進行。容器用自來水填充至其標稱容量，在25℃下適應至少3小時，在1.5m高度(自容器之基底或側面至地面)處自其頂部把手12保持豎直位置，且釋放以自由落下至混凝土樓板上。若在 降落之後立即偵測到洩漏，則將測試記錄為損壞。測試最少二十個可撓性容器。接著計算通過/未通過容器之百分比。
在一實施例中，可撓性容器10具有90%、或95%至100%之側面降落通過率。此側面降落測試如下進行。容器用自來水填充至其標稱容量，在25℃下適應至少3小時，自其頂部把手12保持豎直位置。可撓性容器在其側面自1.5m高度釋放以自由落下至混凝土樓板上。若在降落之後立即偵測到洩漏，則將測試記錄為損壞。測試最少二十個可撓性容器。接著計算通過/未通過容器之百分比。
在一實施例中，可撓性容器10通過自立測試，其中封裝在環境溫度下用水填充且在平坦表面上置放七天，且其應保持在相同位置，且形狀或位置未改變。
在一實施例中，可撓性容器10之容積為0.050公升(L)、或0.1L、或0.15L、或0.2L、或0.25L、或0.5L、或0.75L、或1.0L、或1.5L、或2.5L、或3L、或3.5L、或4.0L、或4.5L、或5.0L至6.0L、或7.0L、或8.0L、或9.0L、或10.0L、或20L、或30L。
可撓性容器10可用於將任意數目之可流動物質儲存在其中。特定言之，可流動食物產品可儲存在可撓性容器10中。在一個態樣中，可流動食物產品諸如沙拉調料；調味汁；乳製品；蛋黃醬；芥末；調味番茄醬；其他調味品；糖漿；飲料，諸如水、果汁、牛奶、碳酸飲料、啤酒或紅酒；動物飼料；寵物飼料；及其類似物，可儲存在可撓性容器10內部。
可撓性容器10適用於儲存其他可流動物質，包 含(但不限於)油、油漆、潤滑脂、化學物質、固體於液體中之懸浮液以及微粒物質(粉末、顆粒、粒狀固體)。
可撓性容器10適用於儲存具有較高黏度且需要向容器施加擠壓力以便排出之可流動物質。此類可擠壓且可流動物質之非限制性實例包含潤滑脂、黃油、人造奶油、肥皂、洗髮精、動物飼料、調味汁及嬰兒食物。
2. 配件
本發明方法包含將配件70置放或以其他方式插入至可撓性容器10之頸部30中。配件70包含基體72及頂部部分74，如圖7中所示。配件70由一種或多種聚合材料構成。基體72及頂部部分74可由相同聚合材料或不同聚合材料製備。在一實施例中，基體72及頂部部分74由聚合材料製備。
頂部部分74可包含螺紋75或其他適合的結構以便連接至閉合件。適合的配件及閉合件之非限制性實例包含螺帽、外翻蓋、彈扣蓋、液體或飲料分配配件(旋閥或拇指式活塞)、Colder配件連接器、防開啟透明包裝傾倒口、垂直旋蓋、水平旋蓋、無菌蓋、vitop按壓機、按壓式旋塞、推式旋塞、槓桿式蓋、conro配件連接器及其他類型之可移除(且視情況可再閉合)閉合件。閉合件及/或配件70可能包含或可能不包含可膨脹套環。在一實施例中，閉合件為水密的。在另一實施例中，閉合件為容器10提供氣密封口。
基體72具有橫截面形狀。基體72之橫截面形狀係選自橢圓形、圓形及正多邊形。
在一實施例中，基體72之橫截面形狀為橢圓形。 如本文所用之「橢圓形」為平面曲線，使得其周邊中之每一點與兩個固定點(焦點)之距離之和相等。橢圓形具有中心，所述中心為連接兩個焦點之線段之中點。橢圓形具有長軸(經過中心之最長直徑)。短軸為經過中心之最短線。橢圓形中心為長軸與短軸之相交點。如本文所用，橢圓形之直徑(d)為長軸。
在一實施例中，橫截面形狀略呈橢圓形，其中長軸與短軸之比率介於1.01至1.25之間。
在一實施例中，基體72之橫截面形狀為圓形(或為實質上圓形)。如本文所用之「圓形」為閉合平面曲線，其由處於距其中稱為中心之點給定距離處之所有點組成。圓形之半徑(r)為圓形中心與圓形上之任何點的距離。圓形之直徑(d)為2r。
在一實施例中，基體之橫截面形狀為正多邊形。如本文所用之「多邊形」為閉合平面圖形，具有三個或更多個直線側邊。兩個側邊會合之點為「頂點」。如本文所用之「正多邊形」為等角(所有角度之量測值相等)及等邊(所有側邊具有相同長度)之多邊形。正多邊形之半徑(r)由以下式(1)定義。
其中s為任何側邊之長度；n為側邊之數目；且 sin為正弦函數。
正多邊形之直徑(d)為2(r)，其中正多邊形之半徑r藉助於式(1)確定。適用於基體72之橫截面的正多邊形形狀之非限制性實例包含等邊三角形、正方形、正五邊形、正六邊形、正七邊形、正八邊形、正九邊形、正十邊形、正十一邊形或正十二邊形形狀。
頂部部分74之橫截面形狀與基體72之橫截面形狀相比可相同或不同。
基體72之橫截面形狀可為圓形、略呈橢圓形、或正多邊形。在一實施例中，基體72之橫截面形狀為圓形、或實質上圓形，如圖7、7A、7B、10A-10F及14中所示。
具有圓形或正多邊形橫截面形狀之基體72與具有舟形配件基體之配件或具有具備對置的徑向翅片之基體的配件不同。在一實施例中，配件70排除包含舟形基體之配件、具有具備徑向翅片之基體的配件、具有翼形基體之配件、及具有眼形基體之配件。
基體72之外表面可能包含或可能不包含表面紋理。在一實施例中，基體72之外表面具有表面紋理。表面紋理之非限制性實例包含壓花及複數個徑向脊以促進密封至頸部側壁50之內表面。
在一實施例中，基體72之外表面光滑且不包含表面紋理，如圖7中所示。
在一實施例中，基體72之直徑大於頂部部分74之直徑。圖7A展示出基體直徑G之長度大於直徑Q(頂部部分74直徑)之長度。基體直徑G大於頂部部分直徑Q之配件 70有利地促進來自可撓性容器10之內含物不受阻的傾倒。
配件70由聚合材料製得。適合的聚合材料之非限制性實例包含丙烯類聚合物、乙烯類聚合物、聚醯胺(諸如耐綸6；耐綸6,6；耐綸6,66；耐綸6,12；耐綸12及其類似物)、環狀烯烴共聚物(COC)(諸如TOPASTM或APELTM)、聚酯(結晶及非晶形)、共聚酯樹脂(諸如PETG)、纖維素酯(諸如聚乳酸(PLA))及其組合。
3. 心軸
所述方法包含將心軸80插入至配件70中。在將配件70安置至頸部30中之前或在將配件70安置至頸部30中之後，可將心軸80插入至配件70中。
在一實施例中，將配件70安置在可撓性容器10之頸部30中，隨後將心軸80插入至配件中，如圖7B中所示。
在一實施例中，熱密封裝置77包含第一對對置的密封條78a、78b、第二對對置的密封條79a、79b及心軸80，如圖8中所示。配件70與心軸80對準，且可撓性容器10(具有配件70)朝向熱密封裝置77移動，使得心軸80以雄-雌接合形式插入或以其他方式進入配件70中。
心軸80包含心軸基體82、鼻錐體84及可膨脹套環86，如圖8A中所示。可膨脹套環86安置或以其他方式包夾在心軸基體82與鼻錐體84之間。心軸基體82、鼻錐體84及可膨脹套環86各自具有對應的通道82a、84a及86a，如最佳在圖8A之分解圖中可見。通道82a、84a及86a經對準，且拉桿88經由通道82a、84a及86a延伸。拉桿88之遠端90連接於鼻錐體84。拉桿88之近端92與馬達(未圖示)或其 他適合的機構可操作連通，以便拉桿88經由通道82a、84a及86a伸展及回縮。拉桿88可永久地連接或以可釋放方式連接於鼻錐體84。儘管圖8A展示出具有截頭圓錐體形狀之鼻錐體84，但鼻錐體84可具有其他形狀，包含(但不限於)圓柱體。
如本文所用之「套環」為形狀為圓柱體、或實質上圓柱體之結構。可膨脹套環86由彈性體材料構成。如本文所用之「彈性體材料」為可在施加應力之情況下拉伸至其長度至少兩倍且在釋放應力之後返回至其大致原始尺寸及形狀的材料。彈性體材料可為或可不為硫化材料。適合的彈性體材料之非限制性實例包含乙烯丙烯二烯單體三元共聚物(EPDM)、乙烯丙烯(EPM)、氫化丁腈橡膠(HNBR)、聚丙烯酸橡膠、聚矽氧橡膠、氟聚矽氧橡膠、氟彈性體、全氟橡膠以及前述之任何組合。
如在心軸80中所組態，可膨脹套環86具有經調適以接觸且支撐配件基體72之內表面的外表面。製得可膨脹套環86之彈性體材料之拉伸能力提供套環86以可擴展性之特徵。術語「套環」與術語「可膨脹套環」可互換地使用。
在一實施例中，可膨脹套環86由矽橡膠構成或以其他方式由矽橡膠製備。
圖9展示出可撓性容器10安裝在熱密封裝置77上，藉此心軸80插入至配件70中。可撓性容器10以假想線展示，從而展示出在密封程序期間心軸80與配件70之間的相互作用。當拉桿88伸展時，心軸80插入至配件70中，且可膨脹套環86處於鬆弛位置。對於可膨脹套環86，「鬆弛位 置」為當可膨脹套環86不受心軸基體82及鼻錐體84壓迫時。在鬆弛位置中，可膨脹套環86之直徑V小於或等於鼻錐體84之直徑J，如圖10A及10B中所示。直徑V小於配件70之內徑。
心軸80可藉助於摩擦配合來接合配件70。可替代地，間隙K存在於配件70之外表面與心軸80之間，如圖10B中所示。間隙K可連續或非連續地圍繞心軸80之圓周。間隙K可或可不圍繞心軸80之整個圓周延伸。換言之，在間隙K仍存在之情況下，配件70與心軸80之間可出現部分接觸。
在心軸80插入至配件70中之後，拉桿88回縮(由圖10C中之箭頭L展示)，壓迫介於心軸基體82與鼻錐體84之間的可膨脹套環86。可膨脹套環86擠壓在心軸基體82與鼻錐體84之間，擠壓力使套環86徑向向外膨脹，如圖10C及10D中所示。部分徑向膨脹之套環86之直徑M大於鼻錐體直徑J，如圖10C及10D中所示。
拉桿88之進一步回縮(圖10E中之箭頭L)在可膨脹套環86上賦予額外壓迫力，進一步擠壓套環86且使套環86完全徑向向外膨脹。完全徑向膨脹之套環86之直徑N大於鼻錐體直徑J。具有直徑N之徑向膨脹之套環86完全接觸基體72之內表面且完全支撐基體72。完全徑向膨脹之套環86的直徑N大於部分徑向膨脹之套環86的直徑M，直徑M大於處於鬆弛位置之可膨脹套環86之直徑V。
在一實施例中，所述方法包含使拉桿88回縮且使套環86徑向膨脹，從而產生具有徑向膨脹之直徑的徑向膨 脹之套環，所述徑向膨脹之直徑比處於鬆弛位置之可膨脹套環86之直徑大1%、或5%、或10%、或15%、或20%、或25%、或30%、或40%、或50%至60%、或70%、或75%、或80%、或90%、或100%至125%、或150%、或175%、或200%。換言之，膨脹之套環86之直徑(直徑M或直徑N)的長度比直徑V(呈鬆弛狀態之套環86的直徑)的長度大1%至200%。
4. 密封條
一旦可膨脹套環86徑向膨脹，所述方法即包含用一對對置的密封條將配件70密封至頸部30中。
在一實施例中，所述方法包含用呈第一取向之第一對對置的密封條將配件70第一密封至頸部30中。對置的密封條之第一取向可為垂直取向或水平取向。圖11展示出呈垂直取向之第一對對置的密封條78a、78b。第一對對置的密封條78a、78b接合且接觸頸部30及基體72，如圖11及11A中所示。將對置的密封條加熱至高於或等於頸部30之多層膜之密封層的熔融溫度(Tm)且低於配件70之熔融溫度的溫度。對置的密封條78a、78b抵著基體72之外表面壓迫多層膜之密封層持續0.1秒、或0.5秒、或1.0秒、或2.0秒、或3.0秒、或4.0秒至5.0秒、或6.0秒、或7.0秒、或8.0秒、或9.0秒、或10秒之持續時間。徑向膨脹之套環86在對置的密封條78a、78b與頸部30之間的接觸及壓迫期間支撐基體72。對置的密封條78a、78b將熱量及壓力賦予至頸部30及基體72之多層膜上，從而將頸部30焊接或以其他方式熱密封至基體72上。密封條78a、78b之向內壓力(由箭頭O展示，圖11A)經來自徑向膨脹之套環86的相等及相對之反作 用力及向外壓力抵消。
在一實施例中，所述方法包含用呈第二取向之第二對對置的密封條將配件70第二密封至頸部30中。對置的密封條之第二取向可為垂直取向或水平取向。第二對對置的密封條相對於第一對對置的密封條之取向偏離90°。圖12展示出呈水平取向之第二對對置的密封條79a、79b。第二對對置的密封條79a、79b接合且接觸頸部30及基體72。第二對對置的密封條之熱密封條件與上文所論述之第一對對置的密封條之熱密封條件相比可相同或不同。對置的密封條79a、79b將熱量及壓力賦予至頸部30及基體72之多層膜上，從而將頸部30焊接或以其他方式熱密封至基體72上。密封條79a、79b之向內壓力(由箭頭P展示，圖12A)經來自徑向膨脹之套環86的相等及相對之反作用力及向外壓力抵消。徑向膨脹之可膨脹套環86在密封期間有利地支撐配件基體72。
在第一密封步驟及第二密封步驟期間，可膨脹套環86之徑向膨脹程度可能不同。可影響可膨脹套環86之徑向膨脹程度之條件的非限制性實例包含(i)熱密封壓力，(ii)熱密封持續時間，(iii)配件70組成，(iv)基體72直徑，(v)基體72側壁厚度，以及(vi)(i)至(v)之任何組合。因此，在可膨脹套環86上之壓迫(擠壓)程度可改變或以其他方式調整，因此可膨脹套環86之徑向膨脹提供反向力以匹配密封條壓力。換言之，可膨脹套環86之徑向膨脹程度(及所得支撐力)可基於配件70之密封壓力及/或特性調整。與膨脹程度無關，徑向膨脹之套環86在熱密封製程期間有利地提供與基體72之內表面接觸的連續且均勻的支撐表面。
第一密封步驟及第二密封步驟之密封條件可相同或不同。對於每一密封步驟，配件70與密封條之間熱密封條壓力為0.25巴、或0.4巴、或0.5巴、或0.75巴、或1.0巴至3巴、或4巴、或6巴、或8巴。可膨脹套環86為可調節的，從而為配件70提供足夠的支撐，允許賦予密封壓力且不使配件70扭曲。密封寬度可為2mm、或4mm、或6mm、或8mm、或10mm、或12mm至14mm、或16mm、或18mm、或21mm、或23mm、或25mm。密封條可經製造以匹配所期望的密封寬度。
在一實施例中，徑向膨脹之套環86之寬度等於或大於對置的密封條之寬度。
在一實施例中，第一密封步驟之熱密封條件與第二密封步驟之熱密封條件相同。第二對對置的密封條及封口寬度之壓力與第一對對置的密封條的壓力相同。
兩步密封方法確保圍繞基體72之整個外圓周形成焊縫或形成熱封口。在一實施例中，所述方法包含在頸部30與基體72之間形成氣密封口。
在一實施例中，所述方法包含在密封期間用徑向膨脹之套環86支撐配件基體72，且在密封程序期間預防配件70變形。在另一實施例中，所述方法包含使對置的密封條與徑向膨脹之套環86對準。對置的密封條接觸頸部30，且在徑向膨脹之套環86下方之區域處的配件基體72外表面接觸且支撐基體72內表面。以此方式，在對置的密封條與基體72外表面之間的接觸點直接對準。配件70在密封程序期間不經歷變形或不經歷實質上變形。
在密封程序完成時，拉桿88伸展(由圖13A中之箭頭R展示)，且徑向膨脹之套環86返回至鬆弛位置，如圖13A及13B中所示。在鬆弛位置中，可膨脹套環86具有鬆弛的直徑V。在可膨脹套環86處於鬆弛位置之情況下，安裝有配件70之可撓性容器10自密封裝置77移除(由圖13B中之箭頭E展示)。配件70焊接在頸部30處之可撓性容器10展示在圖14中。
在一實施例中，基體72具有直徑(d)及側壁厚度(WT)，如圖7A中所示。在圖7A中，基體72直徑(d)展示為距離G且側壁厚度(WT)展示為距離H。基體72直徑(d)可為均勻的或可沿著基體72之長度不同。類似地，側壁厚度(WT)可為均勻的或可沿著基體72之長度不同。
在一實施例中，基體72之直徑沿著基體長度為均勻的，且側壁厚度(WT)沿著基體長度為均勻的。
在一實施例中，基體72之直徑(d)為5mm、或10mm或20mm、或25mm、或30mm、或35mm、或38mm、或40mm、或45mm、或47mm、或50mm、或60mm、或70mm、或80mm、或90mm至100mm、或110mm、或125mm、或150mm、或175mm、或200mm。
在一實施例中，基體72之側壁厚度(WT)為0.15mm、或0.2mm、或0.3mm、或0.4mm、或0.5mm、或0.6mm、或0.7mm、或0.75mm、或0.8mm、或0.9mm、或1.0mm至1.3mm、或1.5mm、或1.7mm、或1.9mm、或2.0mm。
在一實施例中，基體72之側壁厚度(WT)為0.15mm、或0.2mm、或0.3mm、或0.4mm至0.5mm、或0.6mm、 或0.7mm、或0.75mm。如本文所用，前述側壁厚度為0.15mm至0.75mm之基體側壁厚度(WT)為「薄壁」。
基體72具有一定的直徑與側壁厚度比。「直徑與側壁厚度比」(表示為「d/WT」)為基體72之直徑(d)(毫米，mm)除以基體72之側壁厚度(WT)(mm)。在一實施例中，基體72之d/WT為5、或8、或10、或20、或30、或40、或50、或60、或70、或80、或90、或100、或125、或150、或175、或200至500、或525、或550、或575、或600、或625、或650、或675、或700、或725、或750、或775、或800、或825、或850、或875、或900、或925、或950、或975、或1000、或1100、或1200、或1300、或1400、或1500、或1600、或1700、或1800、或1900、或2000。
在一實施例中，基體72之d/WT為35、或40、或50、或60、或70、或80、或90、或100、或125、或150、或175至200、或225、或250、或275、或300、或325、或350、或375、或400、或425、或450、或475、或500、或525、或550或600、或650、或700、或750、或800。
在一實施例中，基體72之d/WT比為35至800，直徑(d)為10mm、或20mm、或30mm、或35mm、或38mm、或40mm、或45mm、或47mm、或50mm至60mm、或70mm、或80mm、或90mm、或100mm、或110mm、或120mm；且側壁厚度(WT)為0.15mm、或0.2mm、或0.3mm、或0.4mm至0.5mm、或0.6mm、或0.7mm、或0.75mm。因此，基體72具有薄壁結構。
在一實施例中，基體72之d/WT比為35至800， 如上文所揭示。基體72之直徑(d)為47mm至120mm。基體72之側壁厚度(WT)為0.15mm至0.75mm。因此，基體72具有薄壁結構。
在一實施例中，基體72之d/WT比為50至550，如上文所揭示。基體72之直徑(d)為10mm至110mm。基體72之側壁厚度(WT)為0.2mm至0.5mm。因此，基體72具有薄壁結構。
d/WT為35至800之配件可包含具有薄壁結構之基體。薄壁配件有利地降低生產成本，降低材料成本以及降低最終可撓性容器10之重量。
在一實施例中，本發明方法製造可撓性容器，如2015年4月10日申請之同在申請中之申請案USSN 62/146,021中所述，所述申請案之全部內容以引用的方式併入本文中。
本發明方法有利地(i)使可以用於製備配件70之材料類型膨脹，(ii)允許在可撓性容器10中利用薄壁配件，以及(iii)(i)及(ii)之組合。不受具體理論束縛，心軸80防止配件/基體在密封期間變形之能力有利地為可撓性包裝之新的可能性打開大門。在經歷常規配件密封程序時易於開裂或變形之聚合材料現可用於關於本發明方法之可撓性包裝。本發明方法亦允許在可撓性包裝中使用薄壁配件。薄壁配件有利地降低生產成本，降低材料成本以及降低最終可撓性容器之重量。
本發明方法可包括兩個或更多個本文中所揭示之實施例。
定義
本文所揭示之數值範圍包含自且包含較低值及較高值之所有值。對於含有確切值之範圍(例如1或2，或3至5，或6或7)，包含任何兩個確切值之間的任何子範圍(例如1至2；2至6；5至7；3至7；5至6等)。
除非相反陳述，自上下文暗示或本領域慣用，否則所有份數及百分比均按重量計，且所有測試方法均為截至本發明之申請日為止的現行方法。
透明度係根據ASTM-D1746量測。
如本文所用之術語「組合物」係指構成所述組合物之材料之混合物以及由所述組合物之材料形成的反應產物及分解產物。
術語「包括」、「包含」、「具有」及其衍生詞並不意圖排除任何額外組分、步驟或程序之存在，無論其是否經具體地揭示。為避免任何疑問，除非相反陳述，否則經由使用術語「包括」所主張之所有組合物均可包含任何額外添加劑、佐劑或化合物，無論聚合或以其他方式。相比之下，術語「基本上由......組成」自任何隨後列舉之範圍中排除任何其他組分、步驟或程序，除了對可操作性而言並非必不可少之彼等之外。術語「由......組成」排除未具體敍述或列出之任何組分、步驟或程序。
密度根據ASTM D 792量測。
如本文所使用之「乙烯類聚合物」為含有超過50莫耳%聚合乙烯單體(以可聚合單體之總量計)且視情況可含有至少一種共聚單體之聚合物。
濁度根據ASTM D1003(方法B)量測且註釋零件之厚度。
術語「熱密封起始溫度」為形成顯著強度(在此情形下，2lb/in(8.8N/25.4mm))之密封所需的最低密封溫度。密封在Topwave HT測試儀中在2.7巴(40psi)密封條壓力下以0.5秒停留時間執行。經密封樣本在Instron拉伸機中以10in/min(4.2mm/sec或250mm/min)測試。
熔體流動速率(MFR)根據ASTM D 1238，條件280℃/2.16kg(g/10分鐘)量測。
熔融指數(MI)根據ASTM D 1238，條件190℃/2.16kg(g/10分鐘)量測。
如本文所用之Tm或「熔點」(參考所繪製之DSC曲線形狀，亦稱為熔融峰)通常藉由如USP 5,783,638中所述用於量測聚烯烴之熔點或峰值的DSC(差示掃描熱量測定)技術量測。應注意，包含兩種或更多種聚烯烴之許多摻合物將具有一個以上熔點或峰，許多個別聚烯烴將僅包括一個熔點或峰。
如本文所使用之「烯烴類聚合物」為含有超過50莫耳%聚合烯烴單體(以可聚合單體之總量計)且視情況可含有至少一種共聚單體之聚合物。烯烴類聚合物之非限制性實例包含乙烯類聚合物及丙烯類聚合物。
「聚合物」為藉由使無論相同或不同類型、以聚合形式提供構成聚合物之多個及/或重複「單元」或「聚體單元」之單體聚合而製備的化合物。因此，通用術語聚合物包涵術語均聚物，均聚物通常用於指代由僅一種類型之單體製 備之聚合物；及術語互聚物，互聚物通常用於指代由至少兩種類型之單體製備之聚合物。其亦包涵共聚物之所有形式，例如無規、嵌段等。術語「乙烯/α-烯烴聚合物」及「丙烯/α-烯烴聚合物」指示如上文所描述，分別由乙烯或丙烯及一或多種額外的可聚合α-烯烴單體聚合製備之共聚物。應注意，儘管聚合物通常稱為「由」一或多種指定單體「製成」，「基於」指定單體或單體類型，「含有」指定單體含量或其類似者，但在此情形下，術語「單體」應理解為指代指定單體之聚合遺留物且不指代未聚合物質。一般而言，本文中之聚合物係指基於為相應單體之聚合形式之「單元」。
「丙烯類聚合物」為含有超過50莫耳%聚合丙烯單體(以可聚合單體之總量計)且視情況可含有至少一種共聚單體之聚合物。
現將在以下實例中詳細地描述本發明之一些實施例。
實例
1. 製造可撓性容器(無配件)
如圖1-6中所示具有頸部及主體之四塊面板可撓性容器使用表1中所提供之七層膜形成。四塊面板中之每一者用表1中展示之七層膜製造。四面板可撓性容器經製造具有3.875L或20L之容積且利用ISO Poly膜(Gray Court，南卡羅來納州(South Carolina))製造。3.875L可撓性容器使用150微米(μm)膜且20L容器使用150μm及250μm膜。
由表1中之可撓性多層膜製備的四塊面板在表2 (下文)中所提供之熱密封條件下熱密封在一起，以製造可撓性容器。可撓性容器由KRW Machinery Inc(Weaverville，北卡羅來納州(North Carolina))製造。可撓性容器中之所有熱封口均用一個衝擊製得。
2. 使用可膨脹心軸密封至頸部之配件
將具有不同基體直徑及不同基體側壁厚度之配件插入至對應的可撓性容器之頸部中。所述配件由相同的高密度聚乙烯(HDPE)製備。每一配件之基體的尺寸及表面紋 理提供於以下表3中。
配件在變性酒精中澈底洗滌，且使其乾燥以製備表面，隨後熱密封至可撓性容器之頸部。
兩個心軸用於將配件熱密封至可撓性容器。38mm直徑心軸用於3.875L可撓性容器。110mm直徑心軸用於20L可撓性容器。每一心軸包含可膨脹套環。每一可膨脹套環由肖氏A(Shore A)30+/-5硬度計FDA批准之聚矽氧橡膠製成。申請人發現，聚矽氧橡膠由於其熱穩定性、柔軟度及持久性而為有利的。
可膨脹軸環之特性提供於下表4中。
對於3.875L可撓性容器，使用各自具有41mm 長度之對置的密封條。每一對置的密封條之密封寬度為10.2mm。每一41mm密封條之密封條面積為0.0004907m2。
對於20L可撓性容器，使用各自具有110mm長度之對置的密封條。每一對置的密封條之密封寬度為15.2mm。110mm密封條中之每一者之密封條面積為0.00179m2。
配件之基體使用如本文所闡述之具有可膨脹套環之心軸熱密封至可撓性容器的頸部。用於配件密封之熱密封條件提供於以下表5中。表5亦提供配件密封完整性資料-(i)爆裂測試資料及(ii)用於配件密封之懸掛測試資料。在表5中，「E」指示本發明實例，「CE」指示比較樣品，且「NS」指示未經取樣。
3. 測試
爆裂測試程序
方法：
1.)所有可撓性容器均用測試數目編號/標記，鑑別膜編號及製造設定點(必要時)。
2.)所有可撓性容器均經由人工充氣或壓縮空氣預先充氣。
3.)緊緊地施加瓶蓋。
4.)可撓性容器置放在真空壓力腔室內部，且閉合覆蓋薄片。
5.)真空壓力經由真空泵施加。壓力應在可撓性容器繼續充氣時緩慢地施加。
6.)真空單位以(inHg)記錄。優異的結果為18(inHG)保持60秒。通過為12(inHg)。
7.)在測試時間段期間，任何較弱密封區域將暴露為洩漏。應尋找氣泡，且其可指示較弱的可撓性容器區域。
8.)可撓性容器經空氣完全填充，且擰緊配件上之閉合件。接著，將可撓性容器完全浸沒在水浴中。接著，將水上方之腔室排空，以形成真空。爆裂測試之「通過」評分為當在40千帕斯卡真空下30秒後在水浴中目視觀測不到氣泡時。
重力懸掛測試程序
方法：
1.)所有可撓性容器均用測試數目編號/標記，鑑別膜編號及製造設定點(必要時)。
2.)所有可撓性容器均用室溫水填充至推薦的填充高度。
3.)將3滴亞甲基藍染料及3滴界面活性劑(肥皂)添加至每一可撓性容器中且攪拌。
4.)將閉合件緊緊地施加至配件上。
5.)可撓性容器接著懸掛成頸側向下及頸側面向上兩種以測試頸部密封及填縫劑密封區域兩者之強度。
6.)使可撓性容器保持懸掛48小時。
7.)在測試時間段期間，任何較弱密封區域將暴露為洩漏。
8.)懸掛測試之「通過」評分為將可撓性容器懸掛48小時且未偵測到洩漏。洩漏藉由目視鑑別可撓性容器下方展示任何落下液滴之白紙來偵測。添加至可撓性容器中之水溶液含有藍色植物染料以便輔助目視偵測洩漏。水溶液亦含有一滴或兩滴肥皂(Dawn盤形肥皂)，其中肥皂界面活性劑有助於允許水滲透封口中可能存在之任何間隙。
申請人發現在配件熱密封程序期間利用具有可膨脹套環之心軸有利地允許使用具有薄壁結構之配件基體。薄壁或薄壁化為配件基體之側壁厚度減小。實例E2、E4、E5、E6及E7展示出d/WT比為35、或54.7(薄壁)、或86.7至220(薄壁)、或550(薄壁)之配件(i)可成功地熱密封至可撓性容器之頸部，(ii)避免變形，(iii)通過爆裂測試，(iv)通過懸掛測試，且(v)同時滿足(i)至(iv)中之每一者。
在配件熱密封程序期間利用具有可膨脹套環之心軸亦允許使用先前不適用於配件應用之聚合材料。具有可膨脹套環之心軸在密封期間支撐配件，且防止變形。因此，具有可膨脹套環之心軸允許先前過軟或過硬(開裂)之聚合材料現在用作單獨配件或薄壁化。實例E8(具有可膨脹套環)展示出INFUSE 9817(彈性體)可以用作適合的配件材料。而未用可膨脹套環密封之比較樣品CE7(INFUSE 9817)未通過爆裂測試。實例E8(i)成功地熱密封至可撓性容器之頸部，(ii)避免變形，(iii)通過爆裂測試，(iv)通過懸掛測試，且(v)同時實現(i)至(iv)中之每一者。
在配件熱密封程序期間利用具有可膨脹套環之心軸亦允許較短密封時間且不劣化密封強度。實例E3(具有可膨脹套環)以7秒密封時間得到可接受的配件密封(通過爆裂測試及懸掛測試)，而比較樣品CE3(無可膨脹套環)需要20秒來製造可接受的配件密封。
具有可膨脹套環之心軸允許更大密封壓力施加至配件。實例E2(具有可膨脹套環)在4.9密封條壓力下得 到可接受的配件密封(通過爆裂測試及懸掛測試)，而比較樣品CE2在4.9密封條壓力下永久地變形。
申請人出乎意料地發現具有可膨脹套環之心軸允許製造具有氣密密封配件之四面板可撓性容器，其中基體側壁厚度為0.2mm、或0.5mm至0.75mm(薄壁基體)。
特別意欲的是，本發明不限於本文中所含有之實施例及說明，而是包含彼等實施例之修改形式，所述修改形式包含在隨附申請專利範圍之範疇內出現的實施例之部分及不同實施例之要素之組合。
10‧‧‧可撓性容器
77‧‧‧熱密封裝置
78a‧‧‧密封條
78b‧‧‧密封條
79a‧‧‧密封條
79b‧‧‧密封條
80‧‧‧心軸
84‧‧‧鼻錐體
88‧‧‧拉桿

Claims (13)

  1. 一種方法，其包括：(A)提供可撓性容器，所述可撓性容器具有(i)主體，及(ii)頸部；(B)將配件置放至所述頸部中，所述配件包括頂部部分及基體，所述配件由聚合材料構成；(C)將心軸插入至所述配件中，所述心軸包括由彈性體材料構成之可膨脹套環；(D)使所述可膨脹套環徑向向外膨脹以接觸所述基體之內表面；以及(E)用一對對置的密封條將所述基體密封至所述頸部上。
  2. 如申請專利範圍第1項所述的方法，其中所述心軸進一步包括心軸基體、鼻錐體及拉桿，所述可膨脹套環安置於所述基體與所述鼻錐體之間，所述拉桿經由所述基體中及所述可膨脹套環中之通道伸展，所述拉桿連接於所述鼻錐體，所述膨脹包括回縮所述拉桿；以及壓迫介於所述心軸基體與所述鼻錐體之間的所述可膨脹套環。
  3. 如申請專利範圍第2項所述的方法，其包括回縮所述拉桿以產生所述可膨脹套環之徑向膨脹之直徑。
  4. 如申請專利範圍第2項至第3項中任一項所述的方法，其 中所述可膨脹套環具有鬆弛之直徑，所述方法包括回縮所述拉桿且壓迫所述可膨脹套環以產生比所述鬆弛之直徑大1%至200%的徑向膨脹之直徑。
  5. 如申請專利範圍第2項至第4項中任一項所述的方法，其中所述壓迫製造厚度大於或等於每一密封條之寬度的徑向膨脹之套環。
  6. 如申請專利範圍第1項至第5項中任一項所述的方法，其包括：在所述密封期間用所述徑向膨脹之套環支撐所述基體；以及在所述密封期間用所述徑向膨脹之套環防止所述配件變形。
  7. 如申請專利範圍第1項至第6項中任一項所述的方法，其包括提供可撓性容器，所述可撓性容器包括四塊面板，每一面板包括可撓性多層膜，所述可撓性多層膜包括聚合材料。
  8. 如申請專利範圍第1項至第6項中任一項所述的方法，其包括提供包括兩塊面板之可撓性容器，每一面板包括可撓性多層膜，所述可撓性多層膜包括聚合材料。
  9. 如申請專利範圍第1項至第8項中任一項所述的方法，其中所述密封包括：用呈第一取向之第一對對置的密封條將所述配件第一密封至所述頸部部分；以及用呈第二取向之第二對對置的密封條將所述配件第二密 封至所述頸部部分。
  10. 如申請專利範圍第9項所述的方法，其包括：使所述基體之內表面與所述徑向膨脹之套環沿著所述基體之長度接觸；以及在所述第一密封期間及在所述第二密封期間用所述膨脹之套環支撐所述基體。
  11. 如申請專利範圍第1項至第10項中任一項所述的方法，其包括將配件置放至所述頸部中且所述基體具有比所述頂部部分之直徑大的直徑。
  12. 如申請專利範圍第1項至第11項中任一項所述的方法，其包括將配件置放至所述頸部中，所述配件具有35至800之直徑(d)與側壁厚度(WT)比d/WT。
  13. 如申請專利範圍第1項至第12項中任一項所述的方法，其包括在所述頸部部分與所述配件之間形成氣密封口。
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