BRPI0709941A2 - embalagem formada de uma pelìcula soldada ponta a ponta - Google Patents
embalagem formada de uma pelìcula soldada ponta a ponta Download PDFInfo
- Publication number
- BRPI0709941A2 BRPI0709941A2 BRPI0709941-0A BRPI0709941A BRPI0709941A2 BR PI0709941 A2 BRPI0709941 A2 BR PI0709941A2 BR PI0709941 A BRPI0709941 A BR PI0709941A BR PI0709941 A2 BRPI0709941 A2 BR PI0709941A2
- Authority
- BR
- Brazil
- Prior art keywords
- layer
- film
- strap
- welding
- pet
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 35
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 62
- 239000004698 Polyethylene Substances 0.000 description 50
- 239000005020 polyethylene terephthalate Substances 0.000 description 37
- 239000002346 layers by function Substances 0.000 description 21
- 239000003292 glue Substances 0.000 description 15
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 230000004888 barrier function Effects 0.000 description 13
- 239000004743 Polypropylene Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000123 paper Substances 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 7
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 6
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 6
- 239000002655 kraft paper Substances 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 4
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000005033 polyvinylidene chloride Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000005026 oriented polypropylene Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 244000130402 Waltheria indica Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 235000019568 aromas Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
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- 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
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- 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
- B29C65/44—Joining a heated non plastics element to a plastics element
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- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
-
- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
- B29C65/5021—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being multi-layered
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- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
- B29C65/505—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined and placed in a recess formed in the parts to be joined, e.g. in order to obtain a continuous surface
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- 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
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
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- 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
- B29C66/40—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
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
-
- 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
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- 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
- B29C66/737—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 state of the material of the parts to be joined
- B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
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- 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
- B29C66/737—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 state of the material of the parts to be joined
- B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
- B29C66/73711—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 state of the material of the parts to be joined oriented or heat-shrinkable oriented
-
- 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
- B29C66/737—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 state of the material of the parts to be joined
- B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
- B29C66/73711—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 state of the material of the parts to be joined oriented or heat-shrinkable oriented
- B29C66/73713—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 state of the material of the parts to be joined oriented or heat-shrinkable oriented bi-axially or multi-axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
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Abstract
<B>EMBALAGEM FORMADA DE UMA PELìCULA SOLDADA PONTA A PONTA<D>A presente invenção refere-se a uma embalagem realizada a partir de um filme termoplástico cujas extremidades são unidas de ponta a ponta, dito filme sendo composto de diversas camadas (7, 8) onde ao menos uma primeira camada soldadora (8) e uma segunda camada (7) onde a soldagem de ponta a ponta é parcial ou inexistente, e pelo menos uma cinta (6) de espessura fina recobrimos as ditas extremidades sendo diretamente fixada sobre uma das faces da segunda camada, a diferença de temperatura de fusão entre a primeira e a ou as outra(s) camada(s) sendo superior a 20<198>C
Description
Relatório Descritivo da Patente de Invenção para "EMBALA-GEM FORMADA DE UMA PELÍCULA SOLDADA PONTA A PONTA".
Domínio da invenção
A presente invenção refere-se ao domínio das embalagens for-madas por meio de películas plásticas. A presente invenção refere-se maisprecisamente a uma embalagem, cujas extremidades são soldadas ponta aponta.
A invenção refere-se também a um processo de fabricação deuma embalagem feita a partir de uma película termoplástica e cujas extremi-dades são soldadas ponta a ponta.
Estado da técnica
As embalagens confeccionadas a partir de películas contendopelo menos uma camada de plástico, formando, por exemplo, sachês, tubosou ainda tijolos são conhecidas no estado da técnica. Essas embalagenssão notadamente confeccionadas por soldagem das extremidades da pelícu-la.
Um primeiro método de soldagem consiste em realizar uma liga-ção dita "revestimento - revestimento", na qual se solda a face inferior dapelícula sobre ela própria. Essa ligação é ilustrada na figura 1.
Um segundo método de soldagem consiste em realizar uma li-gação dita "revestimento - couro" na qual se forma um recobrimento das ex-tremidades da película e solda-se a face inferior sobre a face superior dessapelícula. Essa ligação é ilustrada na figura 2.
Um terceiro método de ligação dito "ponta a ponta" consiste emsoldar as extremidades da película, sem sobrepô-las. Esse método ilustradona figura 3 é descrito nas patentes W02005095105A1 e US5569144 eUS4733800.
A título de exemplo, a patente US4733800 descreve a realizaçãode um tubo flexível fabricado a partir de uma película plástica de multicama-da e tendo propriedades de não retorno elástico; propriedade característicados tubos flexíveis em alumínio. Essa patente propõe a utilização de umacinta soldada no interior ou no exterior do tubo e ligando as extremidadessoldadas, essa cinta contendo uma folha metálica que oferece as proprieda-des de não retorno. A patente mencionada precisa que a espessura da folhametálica na cinta seja superior à espessura da folha metálica na película demulticamada. Um inconveniente maior dessa patente é ligado à dificuldade de fechar as extremidades do corpo tubular confeccionado. Para fabricar umtubo para produtos pastosos (dentifrício, por exemplo) é comum soldar umacabeça de tubo moldada por injeção sobre a extremidade do corpo tubular. Asoldagem de uma cabeça de tubo sobre um corpo tubular obtido segundo oensinamento dessa patente US 4733800 é particularmente difícil de realizar.As extremidades da cinta soldada criam uma descontinuidade da superfícieinterna do corpo tubular, por conseguinte ocasionam um risco de escapa-mento. É também sugerido nessa patente soldar essa cinta na extremidadedo tubo. Todavia, essa cinta de acentuada espessura contendo uma camadade alumínio prejudica muito a estética da embalagem. A patente US 5569144 descreve um dispositivo de soldagemponta a ponta das extremidades da película. O tubo obtido apresenta propri-edades estéticas melhoradas, com uma zona de soldadura quase invisível.Todavia, a pouca resistência do tubo ao nível da zona soldada torna a utili-zação desses tubos no mercado muito arriscada. O pedido de patente internacional WO2005095105 descreve ummétodo para melhorar a soldagem ponta a ponta de uma película de multi-camada, comportando uma camada não-soldante. Esse método consiste emutilizar um laminado, comportando películas soldantes no nível das facesinferior e superior; a camada não-soldante presa entre as películas soldantes achando-se em recuo no nível das extremidades da película; de modo que,quando da soldagem ponta a ponta, as camadas soldantes envolvam a ca-mada não-soldante no nível de sua extremidade e permitam uma soldagemda película sobre toda a sua espessura. Esse método permite a melhoria dasoldagem ponta a ponta de películas de multicamadas, todavia os tubos de multicamadas realizados segundo o método proposto no pedidoWO2005095105 apresentam uma resistência no nível da soldadura inferior àresistência da película.A principal dificuldade da soldagem ponta a ponta é a obtençãode uma zona soldada, cuja resistência é próxima da resistência da película.Procura-se em particular prevenir o modo de ruptura frágil que é observadono nível da soldadura ponta a ponta, quando a soldadura é solicitada emtração.
A invenção permite realizar embalagens soldadas ponta a pontaa partir de uma película de multicamada, comportando pelo menos uma ca-mada não-soldante; as embalagens obtidas, de acordo com a invenção, a-presentando uma resistência da zona soldada pelo menos igual à resistênciada película, e propriedades estéticas melhoradas.
Exposto geral da invenção
A invenção refere-se à soldagem ponta a ponta de uma películacomposta de várias camadas das quais pelo menos uma camada funcional euma camada soldante, essa camada funcional sendo o mais perfeitamentesoldada. Acrescenta-se uma cinta que liga as extremidades da película, afim de compensar a perda de resistência ao nível da zona soldada; a perdade resistência estando ligada ao fato de as extremidades dessa camada fun-cional sendo o melhor parcialmente soldadas ou de a camada soldante terpropriedades diminuídas ao nível da soldadura.
Os diferentes aspectos da invenção serão melhor compreendi-dos com o auxílio das seguintes figuras e de sua descrição detalhada:
- as figuras 1 a 4 descrevem os principais métodos descritos natécnica anterior para ligar as extremidades de uma película.
A figura 1 ilustra a soldagem do dito revestimento que consisteem ligar as extremidades 5 dessa película 2 sobre sua face inferior 4, essaface inferior ficando situada no interior da embalagem.
A figura 2 ilustra o modo de soldagem do dito couro - revesti-mento ou com recobrimento que consiste em soldar as extremidades 5 dapelícula 2; a face superior 3 da película 2 sendo ligada sobre a face inferior 4da película 2; essas faces inferior e superior ficando situadas respectivamen-te no interior e no exterior da embalagem.
A figura 3 ilustra o modo de soldagem da dita ponta a ponta dasextremidades 5 da película 2.
A figura 4 mostra um tipo de ligação, segundo o estado da técnica.
A figura 5 ilustra um modo preferencial da invenção que consisteem uma ligação 1 das extremidades 5 da película 2; a película 2 sendo for-mada de pelo menos uma camada soldante 8 e uma camada funcional 7,essas extremidades 5 sendo soldadas ponta a ponta unicamente no nível dacamada soldante 8; uma cinta 6 de espessura estreita sendo colada sobre aface superior 3 da película 2 e ligando as extremidades não-soldadas dacamada 7.
A figura 6 ilustra a ligação de uma película 2 parcialmente solda-da ponta a ponta no nível de suas extremidades 5, uma cinta 6 sendo acres-centada sobre a face superior 3 da ligação formando a superfície externa daembalagem; uma segunda cinta 10 sendo acrescentada sobre a face inferior4 da embalagem e formando a superfície interna da embalagem; essas cin-tas 6 e 10 ligando as extremidades 5 parcialmente soldadas.
A figura 7 ilustra o fato de que uma camada de revestimento 11pode ser acrescentada sobre a superfície externa 3, a fim de cobrir toda asuperfície da película 2 e da cinta 6. A camada de revestimento 11 forma asuperfície externa da embalagem, a cinta 6 se acha presa na estrutura demulticamada.
A figura 8 ilustra a realização de um corpo tubular, segundo omodo preferencial da invenção.
Exposto detalhado da invenção
Definição dos termos utilizados no exposto da invenção:
- Soldagem: operação que consiste em ligar, fazendo fundir doismateriais de mesma natureza ou miscíveis no estado fundido, essa miscibili-dade manifestando-se pela difusão e pela interpenetração das cadeias mo-leculares; depois fazendo-se resfriar esses materiais, a fim de congelar oestado de interpenetração molecular;
- colagem: operação de ligação de dois materiais que não sãode mesma natureza ou imiscível no estado fundido. A colagem pode fazerintervir mecanismos químicos (reação das pontas de cadeia, reticulação),mecanismos físicos (forças de Van des Waals, evaporação). A colagem éuma operação de ligação que pode ser realizada à temperatura ambiente ouaquecendo-se os materiais;
- camada soldante: camada cuja principal característica é depermitir e facilitar a confecção da embalagem por soldagem;
- camada funcional: camada cuja principal característica é o for-necimento de propriedades diferentes da faculdade de se soldar. As cama-das funcionais geralmente de fina espessura são utilizadas, por exemplo,para melhorar a aparência da embalagem (camadas impressas, camadastransparentes), para melhorar a resistência da embalagem (camadas biori-entadas, camadas técnicas), para fornecer propriedades barreira (oxigênio,aromas) ou para fornecer a funcionalidade (rasgo fácil para abertura da em-balagem).
As camadas soldantes são geralmente à base de poliolefinas(polietileno, polipropileno). A soldagem ponta a ponta coloca em contato umaquantidade muito pequena de matéria, o que torna mais difícil a obtenção deuma ligação resistente. Foi observado que uma camada soldante compostade uma mistura de 80% de polietileno de baixa densidade linear e de 20%de polietileno baixa de densidade radicalar permitia obter uma soldaduraresistente.
As camadas funcionais são à base de uma grande diversidadede resina, cuja escolha depende das propriedades buscadas (por exemplo:PET, PA, PS, EVOH, PVDC). As principais camadas funcionais utilizadashoje são as camadas mono ou biorientadas (PP, PET, PA, PS); as películascom propriedades barreira (PET com depósito de um coating SiOx, PVDC,EVOH, PA). Uma camada funcional pode também ser em alumínio ou empapel.
A invenção permite obter embalagens soldadas com uma varia-ção de espessura desprezível no nível da zona soldada e tendo uma resis-tência da zona soldada equivalente à resistência da película. As embalagensobtidas podem ser impressas sobre toda a sua superfície, sem ruptura daimpressão na zona soldada.
A figura 5 ilustra um modo preferencial da invenção. Esse modopreferencial consiste na ligação 1 das extremidades 5 de uma película 2,comportando pelo menos uma camada soldante 8 na superfície inferior 4 euma camada funcional 7 na superfície superior 3; essa face superior 3 queforma a superfície externa da embalagem e essa superfície inferior 4 for-mando a superfície interna da embalagem. A soldagem ponta a ponta dasextremidades 5 leva a uma ligação parcial das extremidades da película 2, acamada funcional 7 não se soldando ponta a ponta. Uma cinta 6 é colada ousoldada sobre a superfície superior 3 da película, a fim de ligar as extremi-dades não-soldadas dessa camada e reforçar a ligação. A cinta 6 é freqüen-temente colada sobre a camada funcional 3, a soldagem de uma cinta sobrea superfície 3 dessa camada funcional não sendo geralmente possível. Essacinta 6 pode ser impressa ou transparente, ela pode conter uma camadabarreira, a fim de compensar uma eventual descontinuidade da camada debarreiras no nível da zona soldada. A espessura da cinta 6 é pequena dianteda espessura da película 2. A espessura da cinta está preferencialmentecompreendida entre 10 e 60 mícrons. A cinta pode ser aplicada, antes dasoldagem ou após a soldagem ponta a ponta do laminado. A camada sol-dante 8, que forma a superfície interna 4 da embalagem garante as proprie-dades higiênicas no interior da embalagem e no nível da ligação.
A embalagem confeccionada, segundo o modo preferencial dainvenção ilustrado na figura 5, é particularmente vantajosa e inovadora. Essemodo preferencial da invenção permite confeccionar embalagens por solda-gem ponta a ponta de películas, comportando somente duas camadas, umaprimeira camada sendo soldante e uma segunda camada sendo funcional. Aembalagem confeccionada segundo esse modo pode ser impressa sobretoda a superfície da embalagem sem descontinuidade no nível da zona sol-dada. A cinta 6 é, de preferência, transparente e de espessura estreita, a fimde não modificar o aspecto da embalagem. A cinta 6 pode também ser im-pressa.
O modo preferencial, ilustrado na figura 5 é vantajoso para ligarponta a ponta películas, compreendendo camadas, cuja diferença de tempe-ratura de fusão é superior a 20°C. A ligação dessas películas segundo omodo preferencial consiste em aquecer essas películas a uma temperaturapróxima da temperatura de fusão da camada soldante, e em ligar as extre-midades dessa película, por intermédio de uma cinta colada ou soldada.
A figura 6 ilustra o caso em que uma primeira cinta 6 é acrescen-tada sobre a face externa da embalagem e uma segunda cinta 10 é acres-centada sobre a face interna da embalagem. A ligação apresentada na figura8 é vantajosa, quando a espessura da camada soldante 8 é estreita. A cinta6 é geralmente colada sobre a face superior 3 da camada funcional 7, en-quanto que a cinta 10 é vantajosamente soldada sobre a face inferior 4 dacamada 8, formando a superfície interna da embalagem.
Uma variante da invenção ilustrada na figura 7 consiste em de-positar uma camada de resina sintética 11 que cobre a superfície externa dapelícula 2; essa camada de resina sintética 11, cobrindo toda a superfície 3da película 2, assim como a superfície da cinta 6, de modo que a cinta 6 seache presa no interior da ligação 1. A ligação ilustrada na figura 7 é particu-larmente vantajosa para confeccionar corpos tubulares, cuja zona de solda-dura seja totalmente invisível, e tendo uma grande resistência da zona sol-dada. A camada de revestimento 16 é preferencialmente extrudada sobre asuperfície da película 2 e essa camada é escolhida para aderir sobre a su-perfície da película 2 e da cinta 6. O revestimento 11 pode conter várias ca-madas para melhorar a adesão sobre a película 2, para melhorar as proprie-dades de barreiras ou as propriedades de superfície da embalagem.
A figura 8 ilustra a confecção de um corpo tubular por soldagemponta a ponta de uma película, segundo o modo preferencial da invenção.Esse corpo tubular é particularmente vantajoso, pois pode ser confeccionadocom uma película, comportando somente duas camadas, uma primeira ca-mada sendo soldante e uma segunda camada sendo funcional. Essa pelícu-la não pode ser utilizada para realizar um corpo tubular, segundo o estadoda técnica, pois a soldagem da face superior sobre a face inferior dessa pe-lícula não é possível. A invenção permite realizar embalagens mais resisten-tes, mais estéticas, e permite utilizar maior variedade de películas de multi-camadas.
A soldagem ponta a ponta de películas, tal como descrita anteri-ormente é particularmente vantajosa, porque permite confeccionar embala-gens tendo propriedades estéticas melhoradas; a melhoria da estética daembalagem estando ligada ao fato de a zona de soldadura ser pouco visívele de a parede da embalagem apresentar uma superespessura desprezívelno nível da zona soldada.
A invenção não se limita aos exemplos ilustrados pelas figuras 5a 8. Corpos tubulares podem ser realizados segundo os métodos apresenta-dos nas figuras 5 a 7. Outros métodos resultantes da combinação dos méto-dos ilustrados pelas figuras 5 a 7 fazem parte também da invenção, damesma forma que a utilização de equivalentes.
A invenção permite realizar embalagens econômicas, de espes-sura estreita e de grande resistência. A invenção pode ser utilizada para aligação de películas plásticas de multicamadas, mas também para películascompreendendo camadas de alumínio, das camadas de papel ou de papelão.
A espessura da cinta é estreita diante da espessura das pelícu-Ias. Em geral, a espessura da cinta é 5 a 10 vezes menor do que a espessu-ra da película. A espessura dessa cinta está preferencialmente compreendi-da entre 10 e 60 mícrons. A cinta pode ser impressa ou transparente; elapode ser colada ou soldada sobre a superfície do laminado; ela pode conteruma camada de barreira, a fim de melhorar as propriedades de barreira daligação. A cinta pode ser aplicada antes da soldagem ou após soldagemponta a ponta do laminado. A cinta pode ser uma cinta adesiva, cuja aplica-ção é feita à temperatura ambiente, a cinta pode ser colada por acréscimode cola na interface entre a película e essa cinta, a cinta pode ser colada,aquecendo-se essa cinta, a cinta pode ser soldada. A força de adesão dacinta sobre a superfície da película é um fator determinante da resistência daligação. Uma força de adesão muito pequena leva a riscos de ruptura daligação, quando a embalagem é solicitada em pressão, em tração, à dobra,em choque, ou em fadiga. Também, é desejado conseguir uma forte adesãoentre a cinta e a película, de modo que essa cinta não possa ser separadadessa película.
A cinta pode ser soldada ou colada sobre a superfície da pelícu-Ia. Na superfície superior da ligação que forma a superfície externa da em-balagem, é freqüentemente favorável colar a cinta sobre a película. Numero-sas colas e métodos de colagens podem ser considerados. A título de e-xemplo, um primeiro método consiste em levar uma cinta sobre a qual a colafoi previamente aplicada. Uma primeira variante desse método é a cinta a-desiva aplicável à temperatura ambiente, uma segunda variante é uma cintaadesiva que se cola, aquecendo-se. A utilização de uma cinta adesiva leva aum processo fácil de controlar e facilmente industrializável. Um outro métodoconsiste em aplicar a cola sobre a cinta ou sobre a película no momento daligação. A utilização de colas reagentes com dois componentes permite ob-ter elevados níveis de adesão. Geralmente, a operação de colagem não ne-cessita de tratamento particular da superfície da zona ligada, todavia, é pos-sível fazer tratamentos de superfície antes da colagem (tratamento corona,por exemplo).
Quando a cinta é colada sobre a superfície da película, é, às ve-zes, vantajoso interromper a cinta antes da extremidade do corpo tubular. Acinta se estende, portanto, sobre uma parte somente do comprimento docorpo tubular. Quando da ligação da extremidade do corpo tubular e da ca-beça de tubo; é freqüentemente preferível que a cinta esteja ausente da zo-na de ligação.
Em função do modo de aplicação e das propriedades a fornecer,serão encontrados diferentes tipos de cintas:
1. a cinta é soldada: ela comporta uma camada de PET soldante(co-extrudado, amorfo, revestido), OPP co-extrudado, PE, PP ou verniz ter-mo-selante, por exemplo;
2. a cinta é colada e é revestida de cola. Sua única particularida-de é ter uma camada de cola na superfície, quer seja um adesivo utilizável aquente ou a frio. O adesivo pode ser depositado em linha ou presente sobrea cinta. A cinta é então estocada sob a forma de bobinas, a cola sendo entãoprotegida por um papel ou película siliconada. O silicone pode eventualmen-te ser depositado diretamente sobre a superfície externa da cinta e permitirassim evitar a proteção siliconada a eliminar no momento da colocação dacinta.
Qualquer tipo de material é utilizável para essa cinta, e, em par-ticular, os materiais descritos nos pontos 1 e 2, aos quais se pode acrescen-tar o papel, o alumínio. A definição da cinta será então orientada pelas pro-priedades que são buscadas em termos de barreira, resistência mecânica,aspecto;
3. a cinta é colada, mas não é ela mesma revestida de cola. Acola pode ser depositada sobre a película 2 ou ser depositada em linha. Osmateriais utilizáveis são os mesmos que para o ponto 3 acima.
Para fornecer propriedades de barreiras da cinta pode incluiruma camada de alumínio, uma camada de PET ou OPP barreira (com recor-tes PVOH, PVDC, SiOx, AIOx, metalização, ou qualquer outra película dis-ponível no mercado), uma camada co-extrudada com barreita tipo EVOH.
De uma forma geral e para assegurar uma continuidade daspropriedades do produto, a cinta de reforço pode incluir as mesmas cama-das funcionais que as películas 2 utilizadas para a embalagem, isto é, PET,OPP, OPA, PET barreira, PET metalizado, OPP barreira, OPP metalizado,alumínio, papel, PE, PP...
A cinta pode assim ser composta de várias camadas. Ela podeser, por exemplo, em OPP, PET, papel, PE, PP, OPA, PA, PET/PE,OPP/PE, OPA/PE, papel/PE, PET/alu, OPP/alu, OPA/alu, PET/alu/PE,PET/alu/PP, OPP/alu/PE, OPP/alu/PP, OPA/alu/PE, OPA/alu/PP, Pa-pel/alu/PE, papel/PET, papel/alu,... Citamos aqui apenas o nome genéricodos produtos. Esse nome engloba o conjunto da família do produto. PETpode assim ser um PET biorientado clássico, um PET amorfo, um PET co-extrudado, um PET SiOx, um PET Alox, um PET metalizado,... Um PE com-preende todas as películas co-extrudadas à base de PE; podem entre outroscomportar uma camada de EVOH ou de PA. O mesmo acontece com as ou-tras referências.
De uma forma mais geral todas as películas do mercado emuma faixa de espessura de 10 a 60 mícrons podem estar presentes sozinhosou em várias camadas nessas cintas.
A invenção é particularmente vantajosa para confeccionar tubosflexíveis para produtos cosméticos, farmacêuticos ou alimentares.
EXEMPLOS
Nos exemplos que se seguem, as estruturas de multicamadassão descritas, a partir da face externa em direção à face interna da embala-gem, isto é, a partir da face superior em direção da face inferior da ligação.Para simplificar a compreensão da invenção, as camadas adesivas que li-gam as camadas soldantes e funcionais da película 2 não são indicadas. Sóa camada de cola que assegura a coesão entre a cinta 6 ou 10 e a película 2é precisada.
EXEMPLO 1
Ligação feita segundo o modo preferencial da invenção ilustradana figura 5
. Ligação 1: PET / Cola - PET / PE
. Película 2: PET/PE
. Camada funcional 7: PET espessura 30 mícrons
. Camada soldante 8: PE espessura 180 mícrons
. Cinta 6: PET / cola espessura 40 mícrons
. Cola Bostik Vitel 1912
EXEMPLO 2
Ligação realizada, segundo o modo preferencial da invençãoilustrado na figura 5
. Ligação 1: BOPP / cola - BOPP PVOH / PE
. Película 2: BOPP PVOH / PE
. Camada funcional 7: BOPP PVOH espessura 40 mícrons
. Camada soldante 8: PE espessura 200 mícrons
. Cinta 6: PET / cola espessura 60 mícrons
. Cola BostikTLH 2013EXEMPLO 3
Ligação realizada, segundo o modo ilustrado na figura 6. Ligação 1: PA / PE - PE / PA /PE. Película 2: PE/PA/PE. Camada funcional 7: PA espessura 40 mícrons. Camada soldante 8: PE espessura 200 mícrons. Cinta 6: PA / PE espessura 60 mícrons
EXEMPLO 4
Ligação realizada, segundo o modo ilustrado na figura 7. Ligação 1: PE /Alumínio /PE - PE. Película 2: PE / Alumínio / PE. Camada funcional 7: Alumínio espessura 8 mícrons. Camada soldante 8: PE espessura 80 mícrons. Camada soldante 9: PE espessura 120 mícrons. Cinta 6: PE espessura 60 mícrons
EXEMPLO 5
Ligação realizada segundo o modo ilustrado na figura 8. Ligação 1: PET / cola - KRAFT / Alumínio /PE - PE. Película 2: KRAFT / Alumínio / PE. Camada funcional 7: KRAFT / alumínio. Camada soldante 8: PE espessura 40 mícrons. Cinta 6: PET / cola espessura 60 mícrons. Cola Bostik TEE 222. Cinta 10 PE espessura 40 mícrons
Outros exemplos:
De forma não exaustiva, pode-se recensear um certo número depelículas que podem ser utilizadas para a soldadura ponta a ponta:
PE EVOH PE, PE / ALU / PE, PET/ alu / PE, PET / PE, OPP /alu / PE, OPP / PE, kraft / PE, Kraft / alu / PEessas mesmas estruturas podem ser declinadas com um soldante PP aoinvés de PE.
Foi citado aqui apenas o nome genérico dos produtos. Esse no-me engloba o conjunto da família do produto. PET pode assim ser um PETbiorientado clássico, um PET amorfo, um PET co-extrudado, um PET SiOx,um PET Alox, um PET metalizado ... um PE compreende todas as películasco-extrudadas à base de PE; eles podem, entre outros, comportar uma ca-mada de EVOH, de PA.
De uma forma mais geral todas as películas do mercado poden-do estar presentes em uma película soldável ponta a ponta contanto que aligação comporte pelo menos uma película soldante.
Claims (9)
1. Embalagem feita a partir de uma película termoplástica, cujasextremidades são colocadas ponta a ponta, essa película sendo compostade várias camadas das quais pelo menos uma primeira camada soldante euma segunda camada, cuja soldagem ponta a ponta é apenas parcial ouinexistente, e pelo menos uma cinta de espessura que recobre essas extre-midades e sendo diretamente fina fixada sobre uma das faces da segundacamada, a diferença de temperatura de fusão entre a primeira e a(s) outra(s)camada(s) sendo superior a 20 °C.
2. Embalagem, de acordo com a reivindicação 1, compreenden-do duas cintas solidárias às extremidades da película e colocadas de cadalado da película.
3. Embalagem, de acordo com a reivindicação 1 ou 2, na quala(s) cinta(s) é (são) colada(s).
4. Embalagem, de acordo com qualquer uma das reivindicaçõesprecedentes, na qual a segunda camada e a cinta são recobertas por umacamada de resina sintética.
5. Processo de realização de uma embalagem, tal como definidaem qualquer uma das reivindicações precedentes, consistindo em soldarponta a ponta as extremidades de uma película composta de várias cama-das, essa película comportando pelo menos uma primeira camada soldantee uma segunda camada, cuja soldagem ponta a ponta é apenas parcial ouinexistente; processo caracterizado pelo fato de as extremidades da películaserem colocadas ponta a ponta, depois sucessivamente aquecidas e resfria-das, a fim de soldar as extremidades dessa primeira camada e pelo fato depelo menos uma cinta ser fixada sobre a segunda camada, de maneira arecobrir essas extremidades.
6. Processo, de acordo com a reivindicação 5, caracterizado pe-lo fato de a cinta ser fixada sobre a segunda camada previamente a essasoperações de aquecimento e resfriamento.
7. Processo, de acordo com a reivindicação 5, caracterizado pe-lo fato de a cinta ser fixada sobre a segunda camada posteriormente a essasoperações de aquecimento e resfriamento.
8. Processo, de acordo com a reivindicação 5, caracterizado pe-lo fato de a cinta ser fixada sobre a segunda camada conjuntamente a essasoperações de aquecimento e resfriamento.
9. Processo, de acordo com qualquer uma das reivindicações 5a 7, no qual se deposita pelo menos uma camada de resina sintética quecobre a superfície de ligação formada dessa película e dessa cinta ou des-sas cintas.
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IB2006051052 | 2006-04-06 | ||
IBPCT/IB2006/051052 | 2006-04-06 | ||
EP06118170A EP1884348A1 (fr) | 2006-07-31 | 2006-07-31 | Emballage soudé - collé |
EP06118199.6 | 2006-07-31 | ||
EP06118170.7 | 2006-07-31 | ||
EP06118199A EP1884349A1 (fr) | 2006-07-31 | 2006-07-31 | Emballage formé d'un film à plusieurs couches soudé bout à bout |
IB2006054420 | 2006-11-24 | ||
PCT/IB2007/051247 WO2007113780A2 (fr) | 2006-04-06 | 2007-04-06 | Emballage formé d'un film soudé bout à bout |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0709941A2 true BRPI0709941A2 (pt) | 2011-08-02 |
BRPI0709941B1 BRPI0709941B1 (pt) | 2018-09-04 |
Family
ID=46548124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0709941A BRPI0709941B1 (pt) | 2006-04-06 | 2007-04-06 | embalagem feita a partir de uma película termoplástica e processo de realização dessa embalagem |
Country Status (13)
Country | Link |
---|---|
US (1) | US8852705B2 (pt) |
EP (1) | EP2007567B1 (pt) |
JP (1) | JP5466000B2 (pt) |
KR (1) | KR101374126B1 (pt) |
CN (1) | CN101410243B (pt) |
AT (1) | ATE520601T1 (pt) |
BR (1) | BRPI0709941B1 (pt) |
CA (1) | CA2645081C (pt) |
HK (1) | HK1127764A1 (pt) |
MX (1) | MX2008012022A (pt) |
PL (1) | PL2007567T3 (pt) |
RU (1) | RU2437765C2 (pt) |
WO (1) | WO2007113780A2 (pt) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2004389B1 (fr) * | 2006-04-06 | 2011-01-26 | Aisapack Holding SA | Corps tubulaire d'emballage en matériau thermoplastique avec bande incrustée |
US7845297B2 (en) * | 2007-04-03 | 2010-12-07 | Keck Technologies, Llc | Ship and associated methods of formation with vessels having connectable hulls |
TR201207806T1 (tr) * | 2010-01-11 | 2013-01-21 | Chaturvedi Ashok | Esnek örtüşmeli kapatılmış katmanlı boru, katmanlar ve katmanlardan boru oluşturma yöntemi. |
CN104220257B (zh) * | 2011-06-06 | 2017-01-25 | 爱索尔包装有限公司 | 不可见接缝层压制品及其制造方法 |
DE102014008957A1 (de) * | 2014-06-23 | 2015-12-24 | Tesseraux Spezialverpackungen Gmbh | Rundbodenbeutel, Verfahren zum Herstellen einer Rundbodenverpackung sowie Heissschmelzklebstoffgebinde |
JP6932429B2 (ja) * | 2017-03-24 | 2021-09-08 | 株式会社吉野工業所 | ラミネートチューブ容器 |
CN109843573A (zh) | 2017-04-05 | 2019-06-04 | 金帕拉米图贝公司 | 具有不可见的纵向重叠侧缝的管状容器 |
MX2019012392A (es) * | 2017-05-03 | 2020-01-23 | Aisapack Holding Sa | Estructura de tubo de plastico multicapa. |
EP3444104B1 (de) | 2017-08-17 | 2020-02-05 | PackSys Global AG | Verfahren zum herstellen von verpackungstuben sowie verpackungstube |
CN113165277B (zh) | 2018-11-12 | 2023-07-21 | 帕克西斯全球股份公司 | 包装管用柔性管体、其制造方法及其制造设备 |
JP7021759B1 (ja) | 2020-08-14 | 2022-02-17 | 泰介 松ヶ枝 | ボトルカバー及びボトルカバーの製造方法 |
EP4053030A1 (fr) | 2021-03-02 | 2022-09-07 | Aisapack Holding SA | Corps tubulaire pour former un emballage et emballage comprenant un tel corps tubulaire |
WO2022229810A1 (en) | 2021-04-26 | 2022-11-03 | Aisapack Holding Sa | Packaging and production process |
EP4082757A1 (fr) | 2021-04-26 | 2022-11-02 | Aisapack Holding SA | Emballage dont la soudure est dissimulee dans l'impression et procede de fabrication |
EP4257020A1 (fr) | 2022-04-08 | 2023-10-11 | Aisapack Holding SA | Recharge pour emballage et procédé de fabrication |
EP4276030A1 (fr) | 2022-05-11 | 2023-11-15 | Aisapack Holding SA | Emballage barriere a l humidite |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5024350Y2 (pt) | 1972-08-18 | 1975-07-22 | ||
JPS5616063B2 (pt) * | 1972-09-27 | 1981-04-14 | ||
US4156054A (en) * | 1978-03-09 | 1979-05-22 | Swiss Aluminium Limited | Bonded assembly and method for obtaining same |
SE445031B (sv) * | 1984-10-02 | 1986-05-26 | Akerlund & Rausing Ab | Forpackningstub samt forfarande och anordning for tillverkning derav |
DE3536172A1 (de) * | 1985-10-10 | 1987-04-16 | Bosch Gmbh Robert | Verfahren und vorrichtung zum herstellen einer stossnaht mit deckband an einem rohr aus einer mehrschicht-packstoffbahn |
GB2262322B (en) * | 1991-12-14 | 1995-04-12 | W E Rawson Limited | Flexible tubular structures |
JP3484542B2 (ja) | 1992-11-30 | 2004-01-06 | 大日本印刷株式会社 | チューブ容器胴部 |
JPH08104340A (ja) * | 1993-11-08 | 1996-04-23 | Toppan Printing Co Ltd | ラミネートチューブ容器 |
JPH08301312A (ja) * | 1995-04-27 | 1996-11-19 | Lion Corp | 積層チューブ容器 |
JPH0953966A (ja) | 1995-08-17 | 1997-02-25 | Hitachi Ltd | 発熱抵抗体式空気流量測定装置 |
JP2000127242A (ja) * | 1998-10-26 | 2000-05-09 | Shonan Gosei Jushi Seisakusho:Kk | 管ライニング材の製造方法 |
JP4237906B2 (ja) * | 2000-01-28 | 2009-03-11 | 武内プレス工業株式会社 | 積層シートを用いたチューブ容器およびその製造法 |
EP1727672A1 (de) * | 2004-03-15 | 2006-12-06 | CCL Label GmbH | Verbundfolie für einen behälter, insbesondere eine tube |
-
2006
- 2006-04-06 MX MX2008012022A patent/MX2008012022A/es active IP Right Grant
-
2007
- 2007-04-06 BR BRPI0709941A patent/BRPI0709941B1/pt active IP Right Grant
- 2007-04-06 US US12/296,196 patent/US8852705B2/en active Active
- 2007-04-06 CA CA2645081A patent/CA2645081C/fr active Active
- 2007-04-06 AT AT07735416T patent/ATE520601T1/de active
- 2007-04-06 RU RU2008143420/05A patent/RU2437765C2/ru active
- 2007-04-06 EP EP07735416A patent/EP2007567B1/fr active Active
- 2007-04-06 PL PL07735416T patent/PL2007567T3/pl unknown
- 2007-04-06 CN CN2007800110601A patent/CN101410243B/zh active Active
- 2007-04-06 WO PCT/IB2007/051247 patent/WO2007113780A2/fr active Application Filing
- 2007-04-06 JP JP2009503722A patent/JP5466000B2/ja active Active
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2008
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Also Published As
Publication number | Publication date |
---|---|
MX2008012022A (es) | 2008-10-03 |
WO2007113780A2 (fr) | 2007-10-11 |
RU2437765C2 (ru) | 2011-12-27 |
EP2007567B1 (fr) | 2011-08-17 |
CN101410243B (zh) | 2011-10-12 |
JP2009532296A (ja) | 2009-09-10 |
PL2007567T3 (pl) | 2012-01-31 |
US20090092792A1 (en) | 2009-04-09 |
CA2645081A1 (fr) | 2007-10-11 |
JP5466000B2 (ja) | 2014-04-09 |
KR101374126B1 (ko) | 2014-03-20 |
CA2645081C (fr) | 2014-01-21 |
EP2007567A2 (fr) | 2008-12-31 |
WO2007113780A3 (fr) | 2008-01-10 |
US8852705B2 (en) | 2014-10-07 |
CN101410243A (zh) | 2009-04-15 |
RU2008143420A (ru) | 2010-05-20 |
BRPI0709941B1 (pt) | 2018-09-04 |
ATE520601T1 (de) | 2011-09-15 |
KR20080110798A (ko) | 2008-12-19 |
HK1127764A1 (en) | 2009-10-09 |
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