JP5088019B2 - 筒状シュリンクラベル、筒状シュリンクラベル付き容器およびこれらの製造方法 - Google Patents
筒状シュリンクラベル、筒状シュリンクラベル付き容器およびこれらの製造方法 Download PDFInfo
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- JP5088019B2 JP5088019B2 JP2007173317A JP2007173317A JP5088019B2 JP 5088019 B2 JP5088019 B2 JP 5088019B2 JP 2007173317 A JP2007173317 A JP 2007173317A JP 2007173317 A JP2007173317 A JP 2007173317A JP 5088019 B2 JP5088019 B2 JP 5088019B2
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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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
- B29C63/42—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using tubular layers or sheathings
- B29C63/423—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using tubular layers or sheathings specially applied to the mass-production of externally coated articles, e.g. bottles
- B29C63/426—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using tubular layers or sheathings specially applied to the mass-production of externally coated articles, e.g. bottles in combination with the in situ shaping of the external tubular layer
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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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/36—Bending and joining, e.g. for making hollow articles
- B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
- B29C53/40—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles
- B29C53/42—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles using internal forming surfaces, e.g. mandrels
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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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
- B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the article
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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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
- B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts 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
- 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
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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
- 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
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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
- B29C66/49—Internally supporting the, e.g. tubular, article during joining
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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
- B29C66/50—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
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
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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
- B29C66/72—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
- 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
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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
- B29C66/73712—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 mono-axially
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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
- B29C66/73715—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 heat-shrinkable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C3/00—Labelling other than flat surfaces
- B65C3/06—Affixing labels to short rigid containers
- B65C3/065—Affixing labels to short rigid containers by placing tubular labels around the container
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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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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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
- B29C65/82—Testing the joint
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
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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
- B29C66/71—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
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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
- B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0049—Heat shrinkable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/744—Labels, badges, e.g. marker sleeves
Description
本発明の筒状シュリンクラベルは、縦一軸延伸した熱収縮性基材フィルムを延伸方向の所定サイズに切断し、前記ラベルの切断端を上下に重ねてラベルを筒状に成形し、前記重ね部と、重ね部近傍の前記下ラベルとを半導体レーザー光、ファイバーレーザー光またはディスクレーザー光で照射し、前記重ね部を溶着して調製される。重ね部近傍にも前記レーザー光を照射することで、ラベル端部の立ち上がりを防止することができる。図1に、前記レーザーの照射幅(36)を斜線で示す。図1に示すように、得られた筒状シュリンクラベル(100)は、ラベル(30)の両端の重ね部(37)にレーザー溶着部(35)が形成されたものであり、円周方向と二重矢印で示すラベル延伸方向とが同方向となっている。また、ラベル上前の切断端が溶着され、熱収縮後にも立ち上がりを生ずることがない。
本発明の筒状シュリンクラベルは、縦一軸延伸した熱収縮性基材フィルムを使用する。
本発明の筒状シュリンクラベルは、前記重ね部の前記熱収縮性基材フィルムと熱収縮性基材フィルムとの間に、熱収縮性基材フィルムのガラス転位温度(Tg)よりも低いTgの樹脂からなるレーザー吸収層が積層されることが好ましい。熱収縮性基材フィルム/レーザー吸収層/熱収縮性基材フィルムとなるようにラベル端部を重ね、いずれかの熱収縮性基材フィルムから半導体レーザー光、ファイバーレーザー光またはディスクレーザー光を照射すると、レーザー光が熱収縮性基材フィルムを透過してレーザー吸収層に到達し、レーザー光のエネルギーを吸収し当該端部の熱収縮性基材フィルムを軟化し、下側熱収縮性基材フィルムとの溶着を促進することができるからである。
本発明の筒状シュリンクラベル(100)は、熱収縮性基材フィルムのラベル最内層または最外層にデザイン印刷層を有するものであってもよい。ただし、前記重ね部(37)において、筒状に重ねる際に熱収縮性基材フィルムと熱収縮性基材フィルムとの間には印刷層がないことが好ましい。半導体レーザー光、ファイバーレーザー光またはディスクレーザー光による溶着を阻害する場合があるからである。
本発明の筒状シュリンクラベルは、前記熱収縮性基材フィルムの表面側に更に外層を設けてもよい。このような外層としては、筒状シュリンクラベルの用途や意匠性などによって適宜選択することができ、ラベル表面の滑り性を付与する場合にはOPニスを、ラベルを触ったときの触感を付与する場合にはスエードインキによる印刷層を、マット感を付与する場合にはマットOPなどを使用することが好ましい。なお、外層は、2層以上の積層とすることができ、外層にデザイン印刷層を形成してもよい。ただし、重ね部のレーザー照射範囲(図1の符号36)には外層には印刷層が形成されないことが好ましい。レーザー光のラベル透過性を低下させ、溶着を困難とする場合がある。この際、重ね部(37’)の外側の外層には墨を含む印刷層(15)は形成されないことが好ましい。切断しやすくなる場合があるからである。
本発明の筒状シュリンクラベルを添付しうる容器としては、ガラス容器;PETなどの合成樹脂性容器;セラミックボトルなどの無機物容器;アルミや鉄、SUSなどの金属製容器;ガラス、合成樹脂、セラミック、金属、紙などを含む複合材からなる容器に好適に装着することができる。
(i)ラベルの調製
本発明で使用するラベルは縦一軸延伸フィルムを使用し、適宜印刷層やレーザー吸収層を形成することで調製することができる。
本発明の筒状シュリンクラベルは、縦一軸延伸してなる熱収縮性基材フィルムを延伸方向に搬送し、前記フィルムを延伸方向の所定ラベル長に切断し、前記ラベルを鉛直に配置されたシリンダにまき付けて、前記ラベルの切断端を上下に重ねて重ね部を成形し、前記重ね部を前記シリンダと押さえ具とではさみ、前記押さえ具側から前記重ね部(37)と、重ね部近傍の下ラベルからなる前記レーザー光照射幅(3)とにレーザー光を照射して前記重ね部に溶着部(35)を形成して筒状シュリンクラベルを成形し、筒状シュリンクラベルを製造することができる。この方法によれば、フィルム搬送方向と延伸方向とが同方向であるから、切断したラベルを筒状に成形して切断端を重ねると延伸方向の両端部を溶着することができる。すなわち、フィルムを水平方向に移動させるだけでフィルム切断、ラベル筒状溶着を行うことができるために、横一軸延伸フィルムを使用する場合のように、ラベルを90度回転させる工程が不要となる。また、ラベル上前の切断端の端部が下ラベルに溶着されるため、熱収縮後にも外観に優れる筒状シュリンクラベルとなる。また、半導体などのレーザー光で溶着するため、接着剤を使用することなく接着でき、短時間で効率的な溶着が行える。また、容器リサイクル時にラベルを剥がした際、接着剤で接着する場合と相違して、溶着部分が汚れることがなくリサイクル性に優れる。
本発明の筒状シュリンクラベル付き容器は、上記で製造した筒状シュリンクラベルに、ラベルの上部または下部から容器を挿入して容器に筒状シュリンクラベルを装着し、ついで熱収縮処理することで製造することができる。なお、以下は、半導体レーザーの場合で説明するが、ファイバーレーザー光やディスクレーザー光の場合も同様である。
本発明の筒状シュリンクラベル付き容器は、上記筒状シュリンクラベル(100)が容器(90)の全長に亘って被覆するように装着されたものでもよく、容器(90)の上部のみ、下部のみ、蓋部のみ、など容器の一部のみに装着してもよい。更に、容器底部を包み込むように熱収縮させたり、容器蓋部から底部の全体に筒状シュリンクラベルを装着し、熱収縮させて、全面被覆することもできる。
115mm巾、フィルム厚さが25μmのPET縦一軸延伸フィルム(熱収縮率;100℃、10秒、50%、Tg81℃)を使用し、ラベルデザイン印刷をラベル後端の溶着部を除いて裏刷りし、および前記ラベル後端の溶着部に、ポリエステル樹脂(ユニチカ製、商品名「エリーテルUE3223」、Tg4℃)にパール顔料(メルク社製、商品名「レーザーフレア820」)を1:1で配合したレーザー吸収層を8g/m2となるように裏印刷し、延伸方向に巻き取った。
860mm巾、フィルム厚さが25μmのPET縦一軸延伸フィルム(熱収縮率;100℃、10秒、50%、Tg81℃)を使用し、ラベルデザイン印刷をラベル後端の溶着部を除いて裏刷りし、および前記ラベル後端の溶着部に、ポリエステル樹脂(ユニチカ製、商品名「エリーテルUE9200」、Tg65℃)にパール顔料(メルク社製、商品名「レーザーフレア820」)を1:1で配合したレーザー吸収層を3g/m2となるように裏印刷し、72mm巾で10列のラベルをスリットして延伸方向に巻き取った。
115mm巾、フィルム厚さが40μmのポリプロピレン縦一軸延伸フィルム(熱収縮率;100℃、10秒、25%)を使用し、ラベルデザイン印刷をラベル後端の溶着部を除いて裏刷りし、および前記ラベル後端の溶着部に、ポリオレフィン樹脂(商品名「アローベース」)にパール顔料(メルク社製、商品名「レーザーフレア820」)を1:1で配合したレーザー吸収層を8g/m2となるように裏印刷し、延伸方向に巻き取った。
860mm巾、フィルム厚さが25μmのPET縦一軸延伸フィルム(熱収縮率;100℃、10秒、50%、Tg81℃)を使用し、ラベルデザイン印刷をラベル後端の溶着部を除いて裏刷りし、72mm巾で10列のラベルをスリットして延伸方向に巻き取った。
ラベル重ね部に、スポットサイズ0.96mmで半導体レーザー光を照射し、幅1mmの溶着幅を形成した以外は、実施例1と同様に操作して、筒状シュリンクラベルを製造した。なお、接着強度は、剪断強度24N/15mm、剥離強度8.0N/15mm)であった。この筒状シュリンクラベルの外観を図8に示す。
重ね部のデザイン印刷層に墨印刷を行い、出力を120Wにしてレーザー光を照射した以外は実施例2と同様に操作して、筒状シュリンクラベルを製造した。前記重ね部は、ガラス板側から、PET/レーザー吸収層/PET/墨印刷を含むデザイン印刷層/シリンダとなる。その結果、ラベルが2枚の重ね部は溶着したが、ラベルが1枚の個所は、切断されてしまった。
出力を80Wに変更した以外は、比較例2と同様に操作して、筒状シュリンクラベルを製造した。前記重ね部は、ガラス板側から、PET/レーザー吸収層/PET/墨印刷を含むデザイン印刷層/シリンダとなる。その結果、接着強度は、剥離強度が0.8N/15mmと極めて弱いものとなってしまった。
レーザー光の照射条件を、コヒレント社製、DIAMOND K−250(出力250W、100Hz、波長10.6μ)の炭酸ガスレーザーを使用し、パルス間隔500μs、パルス幅19μs、加工速度12m/minの条件で、溶着線巾が約2mmとなるように焦点距離をずらしてレーザー光を照射した以外は、実施例1と同様に操作して筒状シュリンクラベルを製造した。比較例2と同様に、ラベルが2枚の重ね部は溶着したが、ラベルが1枚の個所は、切断されてしまった。
13・・・外層、
15・・・印刷層、
17・・・レーザー吸収層、
20・・・シリンダ、
25・・・空気孔、
30・・・ラベル、
35・・・レーザー溶着部、
36・・・レーザー照射範囲、
37・・・ラベル重ね部、
90・・・容器、
100・・・筒状シュリンクラベル。
Claims (9)
- 熱収縮性基材フィルムの延伸方向にあるラベル両端を溶着してなる筒状シュリンクラベルであって、
縦一軸延伸した熱収縮性基材フィルムを延伸方向の所定サイズに切断してラベルを切り出し、
前記ラベルの切断端を上下に重ねてラベルを筒状に成形し、
前記重ね部と、重ね部近傍の下ラベルとを半導体レーザー光、ファイバーレーザー光またはディスクレーザー光で照射し、前記重ね部を前記レーザー光で溶着するものであり、
前記重ね部の前記熱収縮性基材フィルムと熱収縮性基材フィルムとの間に、熱収縮性基材フィルムのガラス転位温度よりも低いTgの樹脂からなるとともにパール顔料を含むレーザー吸収層が積層され、前記レーザー光を前記レーザー吸収層に照射して前記重ね部を溶着することを特徴とする、筒状シュリンクラベル。 - 前記レーザー吸収層は、更にレーザー光吸収剤を含むことを特徴とする、請求項1記載の筒状シュリンクラベル。
- 前記熱収縮性基材フィルムが、ポリオレフィン系フィルム、ポリエステル系フィルム、ポリスチレン系フィルム、ポリ乳酸系フィルム、またはこれらのフィルムの2種以上の積層フィルムであって、縦方向の熱収縮率が温度100℃で5〜85%である、請求項1または2に記載の筒状シュリンクラベル。
- 前記ポリオレフィン系フィルムが縦一軸延伸ポリプロピレン系フィルムであり、前記ポリエステル系フィルムが縦一軸延伸ポリエチレンテレフタレート系フィルムである、請求項3記載の筒状シュリンクラベル。
- 前記筒状シュリンクラベルは、熱収縮性基材フィルムのラベル最内層または最外層にデザイン印刷層を有することを特徴とする、請求項1〜4のいずれかに記載の筒状シュリンクラベル。
- 請求項1〜5いずれかに記載の筒状シュリンクラベルを装着し、熱収縮処理してなる筒状シュリンクラベル付き容器。
- 前記容器は、容器の筒状シュリンクラベル装着部の最大周径に対する最小周径(最小周径×100/最大周径(%))が50%以上の凹部を有することを特徴とする、請求項6記載の筒状シュリンクラベル付き容器。
- 縦一軸延伸してなる熱収縮性基材フィルムを延伸方向に搬送し、
前記フィルムを延伸方向の所定ラベル長に切断し、
前記ラベルを鉛直に配置された金属製のシリンダにまき付けて、前記ラベルの切断端を上下に重ねて重ね部を成形し、
前記重ね部を前記シリンダと金属製の押さえ具とではさみ、
前記押さえ具側から前記重ね部と、重ね部近傍の下ラベルとに半導体レーザー光、ファイバーレーザー光またはディスクレーザー光を照射して前記重ね部を溶着して筒状シュリンクラベルを成形することを特徴とする、筒状シュリンクラベルの製造方法。 - 縦一軸延伸してなる熱収縮性基材フィルムを延伸方向に搬送し、
前記フィルムを延伸方向の所定ラベル長に切断し、
前記ラベルを鉛直に配置された金属製のシリンダにまき付けて、前記ラベルの切断端を上下に重ねて重ね部を成形し、
前記重ね部を前記シリンダと金属製の押さえ具とではさみ、
前記押さえ具側から前記重ね部と、重ね部近傍の下ラベルとに半導体レーザー光、ファイバーレーザー光またはディスクレーザー光を照射して前記重ね部を溶着して筒状シュリンクラベルを成形し、
前記筒状シュリンクラベルの下部側または上部側から前記シリンダを抜き出し、かつラベルの上部側または下部側から容器を挿入して前記容器に筒状シュリンクラベルを装着し、
ついで熱収縮処理することを特徴とする、筒状シュリンクラベル付き容器の製造方法。
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