JPH02107433A - 包装材料に刻み目を付与する方法 - Google Patents

包装材料に刻み目を付与する方法

Info

Publication number
JPH02107433A
JPH02107433A JP1234526A JP23452689A JPH02107433A JP H02107433 A JPH02107433 A JP H02107433A JP 1234526 A JP1234526 A JP 1234526A JP 23452689 A JP23452689 A JP 23452689A JP H02107433 A JPH02107433 A JP H02107433A
Authority
JP
Japan
Prior art keywords
packaging material
laser beam
strip
notches
shape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1234526A
Other languages
English (en)
Other versions
JP2522553B2 (ja
Inventor
Gert J Huizinga
ゲルト　ヤン　フイジンガ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LPF Verpakkingen BV
Original Assignee
LPF Verpakkingen BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8199851&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH02107433(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LPF Verpakkingen BV filed Critical LPF Verpakkingen BV
Publication of JPH02107433A publication Critical patent/JPH02107433A/ja
Application granted granted Critical
Publication of JP2522553B2 publication Critical patent/JP2522553B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
    • B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/932—Measuring or controlling the joining process by measuring or controlling the speed by measuring the speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/30—Organic material
    • B23K2103/42—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0838—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using laser
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/009—Using laser
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • 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
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72341—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72343—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for liquids
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/967—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
    • B29C66/9672—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data inputs, e.g. involving barcodes, RFID tags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、レーザビームによって包装材料を局所的に蒸
発させ、刻み目を付与する方法に関する。
従来の技術 このように、包装材料にレーザビームを用いて刻み目を
付与する方法は、英国特許Ａ−２，１６１，４２７で知
られている。容器の所望の位置に刻み目を付与すること
は、下記の各点で当該容器に対する消費者の親近感の増
大に大きく寄与するものである。
すなわち、 容器をたとえばハサミ、ナイフ、爪または歯などの特段
の道具を用いることなく、容易に開封することができる
。
開封の際の破れ目が無秩序に拡がる事態に比べ、開封個
所を所望の形状とすることができるので、開封後の内容
物の使い勝手が格段に改善される。
開封後の美観が向上する。
などの点である。
一方、このような刻み目は、以下のような要求に応じる
必要がある。
刻み目を付した後の包装材料は、それ以降の内容物の充
填や輸送および保管などとして取扱われる期間、破損し
てはならない。
容器は予め設定される経時的な価値、すなわち内容物か
ら芳香や臭い、味などが失われてはならず、また水蒸気
や酸素などが刻み目を通して内容物に進入してはならな
いなどの経時的な価値に応じ続ける必要がある。
前記英国特許Ａ−２，１６１，４２７に記載された方法
では、折曲げられて容器を構成するシート体にレーザビ
ームを用いて刻み目や折線が付与され、これら刻み目や
折線の形状はこのシート体に配置可能なマスクに対応し
て形成されている。
このようなシート体は、レーザビームの下に順次的に載
置され、刻み目を付与した後には除去される。
このような方法は、工業的規模での実施に関して充分に
効果的ではなく、特に処理速度が極めて遅いという課題
がある。
帯状で搬送される包装材料にレーザビームを用いて刻み
目を付与する技術は、合衆国特許３，９０９．５８２と
しても知られている。その開示内容において、レーザビ
ームは固定されており、したがって刻み目は帯状の包装
材料の搬送方向に従つて延びることになる。レーザビー
ムの発生源に、前記帯状包装材料の搬送方向と垂直な方
向の往復動を与えることにより、前記刻み目はほとんど
正弦曲線形状にできる技術が合衆国特許４，５４９゜０
６３に記載されている。
発明が解決しようとする課題 本発明の目的は、包装材料に対して任意の形状の刻み目
を高い処理速度にて付与することができる包装材料に刻
み目を付与する方法を提供することである。
課題を解決するための手段 請求項第１項記載の発明は、レーザビームを用いて、包
装材料を局所的に蒸発させて刻み目を付与する′方法に
おいて、 前記レーザビームと包装材料とは相互に移動可能とされ
、 刻み目は、１１整可能な搬送速度でかつ予め定める状態
で搬送される帯状包装材料の少なくとも一方側表面に周
期的な形状として付与され、前記レーザビームの強度は
調節可能とされ、またその走査方向において前記形状に
基づく制御信号に従い、相互に垂直な２方向に走査可能
であることを特徴とする包装材料に刻み目を付与する方
法である。
請求項第２項記載の発明は、刻み目は帯状包装材料の相
互に反対の表面側で発生される一対のレーザビームを用
いて、前記帯状包装材料の相互に反対側表面にそれぞれ
形成され、 上記レーザビームの強度は調節可能であって、その走査
方向は相互に垂直な２方向に前記周期的形状に対応する
信号の制御下に走査可能とされ、帯状包装材料の一方側
表面に形成される刻み目は、反対側表面に形成される刻
み目に関して少なくとも一部分が重複して形成されるこ
とを特徴とする包装材料に刻み目を付与する方法である
。
請求項第３項記載の発明は、刻み目は、強度が調節可能
であってかつ刻み目相互の隣接する部分をそれぞれ照射
する少なくとも一対の個別のレーザビームによって付与
されるようにしたことを特徴とする包装材料に刻み目を
付与する方法である。
作　　用 本発明に従えば、調節可能な速度で一定の状態で搬送さ
れる帯状包装材料の少なくとも一方側表面に、レーザビ
ームにて周期的な形状の刻み目が付与される。このレー
ザビームは、その強度に関して調節可能であり、また前
記周期的な形状に対応する信号による制御のもとて相互
に垂直な２方向に走査可能である。
包装材料は、単一の素材および積層された複合材である
。この複合材は、紙、セロハン、アルミニウム箔や広範
な種類の合成樹脂から成るフィルム、たとえばポリエチ
レン、ポリプロピレン、ポリエステル、ポリアミド、Ｐ
ＢＣ，ＰＶＤＣ，ｓｕ　ｒ　Ｉ　ｙｎ、ポリスチレンな
どの合成樹脂がら成るフィルムなどの一層または複数層
から成る。また前記複合材は、異なる層が粘着剤やラッ
カ、合成樹脂材料、ワックスおよび熱溶融性材料などに
よつオ固着されて成る。
容器の種類によっては、帯状包装材料の両表面に刻み目
を付与することが望ましい、このような場合であっても
、本発明によれば、帯状包装材料の両表面側で用いられ
、形成すべき刻み目の形状に対応する信号によって、相
互に垂直な２方向に走査し、強度が調節可能なレーザビ
ームによって実現可能である。
実施例 第１図は本発明に従う方法を実現する製造装置２８を示
す系統図である。ここで、周期的な表示が印刷された包
装材料２のロール１は、当該包装材料２の一方側表面、
好ましくは両表面に刻み目を付与する装置を通過する。
この刻み目は、帯状包装材料２に印刷された前記表示と
自然に合致させるようにする。刻み目が付与された後、
帯状包装材料２はロール３に巻取られ、これがら個々の
容器が切取られ、内容物の充填や封止などのこれ以降の
処理が行われる。
帯状包装材料２は、複数の方向転換ローラ４〜８によっ
て第１走査装Ｍ９に導がれ、またさらに第２走査装置１
０に導かれてもよい、走査装置９゜１０は、レーザ光発
振器１１がらビームスプリッタ１６を介してレーザビー
ムが供給され、いわゆるフライングオプティックス（ｆ
ｌｙｉＢ　ｏｐｔｉｃｓ）やレンズ、焦点調節機構など
を備える。これにより、走査装置９．１０は、搬送され
る帯状包装材料２上を相互に垂直なＸ方向およびＸ方向
に走査することが可能となり、またその強度が調節可能
となる。
このようなレーザビームのＸ方向またはＸ方向の走査は
、制御装置１２から制御信号が走査装置９、または可能
ならば走査装置１０のフライングオプティックスや焦点
調節機構にも伝達されて制御される。このような制御信
号は、刻み目の所望の形状に対応して制御装置１２で発
生され、前記刻み目の所望の形状は入力装置１３によっ
て制御袋！！１２に入力される。またこの制御御信号は
、当然に帯状包装材料２の搬送速度にも関連することに
なる。この搬送速度は、出力信号が制御装置１２に適用
可能な所定の変換器１４によって計測される。この刻み
目は、帯状包装材料２に印刷されている表示と一致させ
る必要があるため、この印刷表示を検出する印刷表示検
出装置１５が配置され、この印刷表示検出装置１５は制
御装置１２と電気的に接続される。
帯状包装材料２の背後側に刻み目を付与する走査装置１
０には、ビームスプリッタ１６および固定反射鏡１７に
よってレーザ光発振器１１がらレーザビームが供給され
る。また、このビームスプリッタ１６の配置位置に旋回
鏡を設けるようにしてもよい。この旋回鏡は、刻み目が
帯状包装材料２の前面側および背後側に交互に形成され
る周期に対応して制御装置１２の制御下で動作する。
帯状包装材料２に印刷された表示の異なる長さに対応し
て、走査装置１０によって形成される刻み目の長さを、
予め定める所定の長さの一つに対応して調整するために
、方向転換ローラ５，６の間にテンションローラ１８が
配置される。このテンションローラ１８は、制御装置１
２の制御のもとてモータ１９により移動可能であって、
帯状包装材料２にテンションローラ１８により形成され
るループ２ａが、前記印刷された表示の長さに適応する
ように調節される。
包装材料とそれに付与された刻み目との具体例を以下に
詳細に説明する。
具体例１ 第２図および第３図は、具体例１を示す図であり、第２
図（１）はスープやソースなどの乾燥製品を収容する袋
２０を示し、この袋２０番二番よ第２図右方偶部に刻み
目２１が付与されてｔ）る、この刻み目２１は、連続し
て形成されてもよく、また断続した形状であってもよい
、第２図（２）の展開図において、容器の幅はロール１
の幅と等しくされている。この刻み目２１は、大略半楕
円形状に形成される。
本具体例の包装材料２の組成は、下記のとおりである。
０．０１２５ｍｍ厚ポリプロピレン（ｌ１ｇ／ｍ’）２
ｇ／ｍ”　　　　　　ラッカ ６０ｇ／ｍ２　　　　　コートとされたクラフト紙１〜
１．５ｇ／ｍ”　　粘着剤 ０．００８ｍｍ厚アルミニウム箔（２１，６ｇ／ｍ’）
２ｇ／ｍ’　　　　　　ラッカ ０．０２５ｍｍ厚低密度（ＬＤ）ポリエチレ７（２４ｇ
／ｎ２）刻み目を形成するために最も外方のフィルム（
ポリプロピレン）と、その下層にあるクラフト紙の一部
分とが予め設定された形状に従い、レーザビームにて蒸
発される。中間にあるアルミニウム箔は、蒸発すること
なく完全に残留し、容器内の内容物に有効な保存期間を
保証する。
包装材料２のロール１が第３図（１）に示されるように
、より幅広である場合、相互に並置される３つの刻み目
２１を同時に形成するために、相互に平行である３本の
個別なレーザビームが用いられる。このような刻み目２
１の形状は、第３図（２）〜同図（４）のいずれか１つ
が選ばれる。
これらの刻み目２１の形状は、一方では美観的配慮から
決定され、他方では容器内の内容物を一様に用いること
ができるための配慮から決定される。
具体例２ 第４図（１）および同図（２）に示されるコートを収納
する包装容器２９の組成は、以下のとおりである。
０．０２１ｍｍ厚ポリプロピレン（１９ｇ／ｍ”）２ｇ
／ｍ’　　　　　　　ラッカ ５０ｇ／ｍｚ　　　　　　コートされたクラフト紙この
積層体の合成樹脂フィルムは、ハサミやナイフが無くし
ては破ることができない、一方、前記クラフト紙まで到
達して形成された刻み目２１により、この容器２９は容
易に開封することができ、商品名などの表示部が除去さ
れる。
この具体例でも第４図（２）に示されるように、展開状
態の容器２９の幅は、ロール１の幅と同等であり、また
は相当に狭くなる。これは第５図に示されるように、ロ
ール１の幅方向に複数列の容器が配列される場合である
。
具体例３ 第６図（１）および同図（２）に示される容器３０は、
３０〜３５μｍ（約２７〜３２　ｇ／ｍ２）厚のポリプ
ロピレンの単一層から構成される。この単一層の合成樹
脂フィルムは、レーザビームにより前記具体例と同様に
部分的に消失され、刻み目２１が形成され、これにより
刻み目２１に沿って容易に開封することができる。
具体例４ 第７図および第８図に示されるタバコの容器は、厚紙か
ら成る箱体２２から成り、袋２３が貼着される。袋２３
は、下記に示す組成であって印刷表示を有しない帯状包
装材料から形成される。
２８　ｇ／ｍ”　　ポリエステル １３　ｇ／ｍ”　　ポリエチレン ７μｍ厚アルミニウム箔（１８，９ｇ／ｍ”）１８ｇ／
ｍ”　　ポリエチレン 最外層のポリエステル層は、前記具体例と同様に特段の
器具なくしては破ることはできない。包装材料２の両表
面における合成樹脂フィルムにそれぞれ形成された刻み
目２１により、箱体２２が開かれたとき包装材料２の中
間位置付近が開封されることができる。これは、袋２３
の縁部２４が箱体２２の把持片２５に貼着されているこ
とによる。前記縁部２４は、粘着テープ２６により、そ
の裏面が当該裏面の下層にある袋２３の正面側に固着さ
れる。刻み目２１は、予め定められる中間長さの固定さ
れた形状で、帯状包装材料２に付与される。
アルミニウム箔とその下層にあるポリエチレン層とは、
刻み目２１が形成されない状態で残留し、これによりタ
バコの芳香は箱体２２および袋２３が開封されない限り
は、持続できることになる。
第８図には、第７図の構成と異なる構成の箱２２内に収
納された袋としての包装容器２３が示される。その相違
点は、袋２３は第７図の場合と異なる場所において接合
部２７で封止されていることである。第８図の場合にお
ける刻み目２１は、包装容器２３の折曲げられた縁部３
１までは連続せず、点Ｐ付近の全構成層において終了す
る０箱体２２の把持片２５によって、袋２３の適正な開
口を形成するために、刻み目２１の各終端部は、水平方
向の刻み目２８によって相互に連結される必要があり、
これにより帯状包装材料２の前面側と背後側との双方に
おいて、刻み目が付与されることになる。このような場
合において把持片２５は、刻み目２８の近傍で袋２３に
糊付けされる。
刻み目の形状が複雑になり、長い刻み目や効果が弱い刻
み目となる場合では、個別に制御可能なレーザビームを
用いて、帯状包装材料２上で刻み目を複数の部分に分割
して形成することが望ましい、第１図の系統図に示した
製造装置２８においては、帯状包装材料２の同一側で走
査装置９に関して２つのレーザビームが用いられ得るが
、制御装置１２は２つの走査装置９の個別的な制御に用
いられてもよいのは当然である。
発明の効果 以上のように本発明に従えば、調節可能な速度で一定の
状態で搬送される帯状包装材料の少なくとも一方側表面
に、レーザビームを用いて周期的な形状にて刻み目が付
与される。このレーザビームは、その強度に関して調節
可能であり、また前記周期的な形状に対応する信号によ
る制御のもとて相互に垂直な２方向に動作可能である。
したがって任意の形状の刻み目を付与することができる
と共に、帯状包装材料に対して周期的な形状にて刻み目
を付与することができ、処理速度が格段に向上される。
【図面の簡単な説明】
第１図は本発明を実施する好適な製造装Ｍ２８の構成を
示す系統図、第２図（１）は具体例１の正面図、第２図
（２）は具体例１の斜視図、第３図（１）は具体例１の
変形例の斜視図、第３図（２）〜第３図（４）は本具体
例の刻み目２１の変形例をそれぞれ示す正面図、第４図
（１）は具体例２の斜視図、第４図（２）は具体例２の
斜視図、第５図は具体例２の変形例の斜視図、第６図（
１）は具体例３の斜視図、第６図（２）は具体例３の斜
視図、第６図（３）は具体例３の変形例を示す斜視図、
第７図（１）は具体例４の斜視図、第７図（２）は第７
図（１）の縦断面図、第７図（３）は具体例４の袋２３
の斜視図、第７図（４）は袋２３の縦断面図、第７図（
５）は開封状態の箱体２２の斜視図、第７図（６）は展
開状態の包装材料２の正面図、第８図（１）は箱体２２
の斜視図、第８図（２）は袋２３の正面図、第８図（３
）は箱体２２の縦断面図、第８図（４）は袋２３の斜視
図、第８図（５）は袋２３の縦断面図、第８図（６）は
第８図（５）のセクションＡの拡大断面図、第８図（７
）は箱体２２の開封状態の斜視図。 第８図（８）は本具体例の展開状態の包装材料２の正面
図である。 ２１・・・刻み目、２２・・・箱体、２３・・・袋、２
４・・・縁部、２５・・・把持片、２８・・・製造装置
代理人　　弁理士　西教　圭一部 １３−［コ 第 図 第 ４図 第 第 ６図 図 第 ７図 第 図

Claims (3)

    【特許請求の範囲】
  1. （１）レーザビームを用いて、包装材料を局所的に蒸発
    させて刻み目を付与する方法において、前記レーザビー
    ムと包装材料とは相互に移動可能とされ、 刻み目は、調整可能な搬送速度でかつ予め定める状態で
    搬送される帯状包装材料の少なくとも一方側表面に周期
    的な形状として付与され、 前記レーザビームの強度は調節可能とされ、またその走
    査方向において前記形状に基づく制御信号に従い、相互
    に垂直な２方向に走査可能であることを特徴とする包装
    材料に刻み目を付与する方法。
  2. （２）特許請求の範囲第１項記載の方法において、刻み
    目は帯状包装材料の相互に反対の表面側で発生される一
    対のレーザビームを用いて、前記帯状包装材料の相互に
    反対側表面にそれぞれ形成され、上記レーザビームの強
    度は調節可能であつて、その走査方向は相互に垂直な２
    方向に前記周期的形状に対応する信号の制御下に走査可
    能とされ、帯状包装材料の一方側表面に形成される刻み
    目は、反対側表面に形成される刻み目に関して少なくと
    も一部分が重複して形成されることを特徴とする包装材
    料に刻み目を付与する方法。
  3. （３）特許請求の範囲第１項または第２項いずれか記載
    の方法において、 刻み目は、強度が調節可能であつてかつ刻み目相互の隣
    接する部分をそれぞれ照射する少なくとも一対の個別の
    レーザビームによつて付与されるようにしたことを特徴
    とする包装材料に刻み目を付与する方法。
JP1234526A 1988-09-07 1989-09-07 包装材料に刻み目を付与する方法 Expired - Fee Related JP2522553B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP88201929.2 1988-09-07
EP88201929A EP0357841B1 (en) 1988-09-07 1988-09-07 A method of providing score lines in packaging material

Publications (2)

Publication Number Publication Date
JPH02107433A true JPH02107433A (ja) 1990-04-19
JP2522553B2 JP2522553B2 (ja) 1996-08-07

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EP (1) EP0357841B1 (ja)
JP (1) JP2522553B2 (ja)
AT (1) ATE102119T1 (ja)
CA (1) CA1324420C (ja)
DE (1) DE3888179T2 (ja)
ES (1) ES2051829T3 (ja)

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ATE102119T1 (de) 1994-03-15
EP0357841A1 (en) 1990-03-14
CA1324420C (en) 1993-11-16
US5001325A (en) 1991-03-19
JP2522553B2 (ja) 1996-08-07
DE3888179T2 (de) 1994-06-30
DE3888179D1 (de) 1994-04-07
EP0357841B1 (en) 1994-03-02
ES2051829T3 (es) 1994-07-01

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