JPH09169055A - 結晶性熱可塑性樹脂シートの熱ラミネート方法 - Google Patents
結晶性熱可塑性樹脂シートの熱ラミネート方法Info
- Publication number
- JPH09169055A JPH09169055A JP7348193A JP34819395A JPH09169055A JP H09169055 A JPH09169055 A JP H09169055A JP 7348193 A JP7348193 A JP 7348193A JP 34819395 A JP34819395 A JP 34819395A JP H09169055 A JPH09169055 A JP H09169055A
- Authority
- JP
- Japan
- Prior art keywords
- resin sheet
- temperature
- sheet
- resin
- adhesive
- 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
Links
Classifications
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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
- B29C66/45—Joining of substantially the whole surface of the articles
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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
- B29C65/1429—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 characterised by the way of heating the interface
- B29C65/1432—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 characterised by the way of heating the interface direct heating of the surfaces 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
- 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
- B29C65/1429—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 characterised by the way of heating the interface
- B29C65/1445—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 characterised by the way of heating the interface heating both sides of the joint
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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
- B29C65/1429—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 characterised by the way of heating the interface
- B29C65/1464—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 characterised by the way of heating the interface making use of several radiators
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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
- B29C65/1429—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 characterised by the way of heating the interface
- B29C65/1464—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 characterised by the way of heating the interface making use of several radiators
- B29C65/1467—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 characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous 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
- B29C65/78—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
- B29C65/7858—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 characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
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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
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
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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
- B29C66/03—After-treatments in the joint area
- B29C66/034—Thermal after-treatments
- B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
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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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
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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
- B29C66/7377—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 amorphous, semi-crystalline or crystalline
- B29C66/73775—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 amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline
- B29C66/73776—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 amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline the to-be-joined areas of both parts to be joined being crystalline
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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
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
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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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
- B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
- B29C66/91445—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile by steps
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
- B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
- B29C66/91643—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
- B29C66/91645—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
- B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
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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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
- B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
- B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
- B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
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- 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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- 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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- 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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- 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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- 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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- B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/90—Measuring or controlling the joining process
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Landscapes
- Engineering & Computer Science (AREA)
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Abstract
樹脂シートを、充分な接着力で、シートの歪み、変形、
破断等を起こすこと無く製造する。 【解決手段】 その一つの方法は、2層のシートのラミ
ネートを仮ラミネートと、本ラミネートとの2段階に分
けて行い、最初の仮ラミネートは、両シートの接着面表
面近傍のみ接着性を発現させるために結晶融解温度以上
に加熱し、それ以外の非接着面表面近傍は結晶融解温度
未満に保つことでシートの強度を確保した状態で仮接着
を行い、本ラミネートで、両シートを所望の表面状態
(平滑又は凹凸)にする為、及び両シート内の残留応力
を除く為に、両シートを結晶融解温度以上で融点未満の
温度まで加熱した状態で接着した後、結晶融解温度以下
に、さらに室温まで冷却する様にする。
Description
融着ラミネート方法で、特に結晶性のあるポリオレフィ
ン系素材の樹脂シートに適した熱ラミネート方法に関す
る。
脂シート等の熱可塑性樹脂シートを熱ラミネートする方
法が知られている。例えば、「特許庁公報 周知・慣用
技術集」(日本国特許庁、昭和59年6月15日発行、
第163頁)には、熱可塑性樹脂フィルムの熱融着接着
方法として、2層の樹脂フィルムを連続的に熱圧着する
か、又は加熱プレスで熱圧着することにより接着一体化
する方法が挙げられている。また、接着一体化と樹脂フ
ィルムの表面への賦形をするエンボス処理を同時に行
う、いわゆるダブリングエンボス法が挙げられている。
この方法によれば、対象とする樹脂フィルムは、塩化ビ
ニル樹脂、アクリル樹脂、アクリロニトリル−ブタジエ
ン−スチレン共重合体フィルム等であるが、又、一般的
に熱接着が困難なオレフィン系樹脂フィルム、ポリエス
テルフィルム等も、あらかじめヒートシール剤をフィル
ムにコーティングしておく事により同様に熱接着する事
が出来ると説明している。
を兼ねた従来の熱ラミネート装置(すなわちダブリング
エンボス装置)の装置構成を示す概念図である。同図を
説明すれば、2層の樹脂シートS1及びS2は各々巻取
ロール91a及び91bから供給され、予熱ロール92
a及び92bで各々予熱されてからヒートドラム93部
分で重ね合わされつつヒートドラム93で加熱されると
共に、予熱用パネルヒータ94aでも非接触による輻射
熱でも加熱され、次いで、予熱用パネルヒータ94b及
び94cで輻射加熱されつつ、表面をテフロン製として
非粘着化した予熱ロール95a〜95cでさらに加熱さ
れて、エンボスロール96と圧胴97の間に導かれて、
加圧されてエンボス処理と2層のシートの積層・接着に
よる一体化が行われ、その後、冷却ロール98で冷却さ
れて巻取ロール91cで巻き取られるというものであ
る。
も各種あり、例えば特開昭57−157756号公報で
は、可塑剤を含有する塩化ビニル樹脂シートについて、
積層後に上側となる上台シートのみを熱ドラムで加熱
後、さらにヒータによる非接触加熱でシートが軟化する
温度まで加熱し、一方、積層後に下側となる下台シート
の方は予め施されているエンボスが戻らない程度にまで
抑えて予備加熱して、これら両シートを重ね合わせて加
圧して、2層のシート間にエンボスがある構造の積層シ
ートを製造する熱ラミネート方法が開示されている。
外線による輻射加熱装置及び加熱ドラムにより塩化ビニ
ルレーザの樹脂シートAを軟化させ、これにポリエステ
ルフィルム等の耐熱性で強靱屈曲性に富みかつ剥離しや
すい薄いフィルムBを重ね合わせて状態で、エンボスロ
ールと圧胴との間を通すことで、エンボスと共に積層し
て熱ラミネートを行った後、フィルムBをシートAから
剥離することで、エンボスロールの凹凸をフィルムBを
通してシートAの表面に間接的にエンボス形成するとい
う、熱ラミネート方法を応用した薄いぼかした紋模様を
形成する方法等も提案されている。
一対の熱ラミネートロールに積層すべき2層の樹脂シー
トを重ね合わせて通す前に、予備熱処理ロールでより厚
みの大きい方の樹脂シートを予熱処理しながら行う熱ラ
ミネート方法が提案されている。また、同号公報ではこ
の方法が適用できる樹脂として、ポリスチレン系樹脂等
と共に、ポリエチレン、ポリプロピレン等の結晶性熱可
塑性樹脂等も挙げている。
た従来の熱ラミネート方法では、可塑剤含有の塩化ビニ
ル樹脂シートや非晶性熱可塑性樹脂シート等では熱ラミ
ネートの適正温度範囲が広く製造は容易だが、特にポリ
エチレン、ポリプロピレン等のポリオレフィン系樹脂等
による結晶性熱可塑性樹脂シートの場合には適正温度範
囲が狭く熱ラミネートに問題があった。それは、結晶性
熱可塑性樹脂シートでは、シートの樹脂の融点近傍にお
いて、急激にシートが軟化して強度が低下する熱−機械
的特性がある為に温度制御が難しく、加熱過多の場合、
シートが溶融し、切断又は歪みや伸びを生じてしまうか
らであった。そして、シート表面が粘着性をおびて、加
熱ローラから剥離しない等の問題が生じた。また、加熱
が少な過ぎると、2層の樹脂シート同士の接着力が不足
してラミネート強度が出ず、またエンボスも施す場合に
はエンボスの入りが甘く、エンボスの耐熱性が低くてラ
ミネート時の残留応力や歪みの解放も不充分であった。
なお、ポリエチレン、ポリプロピレン等のポリオレフィ
ン系樹脂のシートの場合には、得られた積層シートの表
面の接着性を改善する為に、コロナ処理等を熱ラミネー
ト前に施しておいたとしても、加熱によりその効果が薄
れてしまうという問題もあった。
る為に、本発明の熱ラミネート方法では、2層の結晶性
熱可塑性樹脂シートの樹脂の結晶融解温度に注目しつ
つ、加圧積層を主として仮ラミネートとしての第1の加
圧積層(各請求項の工程(b) )の工程と、本ラミネート
としての第2の加圧積層(各請求項の工程(d) )の工程
との2段階に分けて行い、最初の仮ラミネート工程で
は、両シートの接着面表面近傍のみ接着性を発現させる
ために結晶融解温度以上に加熱し、それ以外の部分は結
晶融解温度未満に保つことでこの部分でシートの強度を
確保した状態で仮接着を行い、次いで本ラミネート工程
で、両シート表面を所望の表面状態(平滑又は凹凸)に
する為、及び両シート内の残留応力を除く為、更により
接着力を高くする為に両シートを結晶融解温度以上で融
点迄未満の温度まで加熱した状態で接着し、その後、結
晶融解温度以下に、さらに室温まで冷却する様にして、
熱可塑性樹脂シートが結晶性であっても熱ラミネートを
行える様にした。この結果、両シートの熱変形、歪み、
破断、ガイドローラ等接触部分との粘着防止を企てつ
つ、両シートを積層できる様にした。
剤を施したものを使う場合は、該接着剤としてその接着
力発現温度を両シートの結晶融解温度未満のものが施さ
れているものを用意し、仮ラミネート工程は前記接着力
発現温度以上で且つ上記結晶融解温度未満の温度で接着
を行い、後は前述同様に本ラミネート工程は両シートを
結晶融解温度以上で融点迄未満の温度まで加熱した状態
で接着する様にして、熱可塑性樹脂シートが結晶性であ
っても熱ラミネートを行える様にした。この場合も前述
同様に、両シートの熱変形、歪み、破断、ガイドローラ
等接触部分との粘着防止を企てつつ、両シートを積層で
きることとなる。
の結晶性熱可塑性樹脂シートの熱ラミネート方法を説明
する。
シートの熱ラミネート方法を実現する為の熱ラミネート
装置の装置構成を示す概念図である。同図に示す如く、
本発明を実現し得る熱ラミネート装置の加圧積層部分
は、第1の加圧積層を行う仮ラミネート部分と、第2の
加圧積層を行う本ラミネート部分とを有する。仮ラミネ
ート部分は圧着ロール31及び32で加圧され、本ラミ
ネート部分はラミネートロール5及び圧胴6により加圧
される。樹脂シートS1及びS2は、各々巻取ロール1
1及び12から対を成す供給側ニップロール81a及び
81bによりニップされつつ送り出されて仮ラミネート
部分に供給されていく。そして、仮ラミネート部分で
は、両シートS1及びS2は、その接着面側を各々、加
熱ロール21及び22により加熱れさ、さらに加熱ロー
ルから離れて表面が低温の圧着ロール31及び32によ
り挟まれて加圧積層されるまでの間に冷えない様に、予
熱用パネルヒータ41及び42による赤外線輻射により
加熱されて、圧着ロール31及び32により両樹脂シー
ト同士の仮ラミネートが行われる。そして、本発明の熱
ラミネート方法では、この仮ラミネートの際に、両樹脂
シートの接着面側の表面近傍の温度と、非接着面側の表
面近傍の温度を、所定の温度に制御することになる。
ミネートにより一応積層されて積層シートとなるが、次
にこの積層シートを最終的な温度まで加熱して本ラミネ
ートを行う。そこで、圧着ロールから出た積層シート
は、圧着ロールから垂直にほぼ自重により落下させて、
ラミネートロール5及び圧胴6に至る直前で予熱用パネ
ルヒータ43及び44によって、本発明が規定する所定
の温度まで積層シートに接触することなく非接触で加熱
して、ラミネートロール5及び圧胴6によって、加圧し
積層、接着して一体化する。従って、本ラミネートのラ
ミネートロール5及び圧胴6(のニップ面)は、仮ラミ
ネートの圧着ロール31及び32(のニップ面)の真下
に位置する構造である。即ち、シートの自重(重力)の
方向はシートの搬送方向の成分のみ有し、シートと直交
しそれを変形させる成分を持たない。又、ローラ等から
力を受ける事もない。これによって、本ラミネート直前
に結晶融解温度以上且つ融点未満の温度まで加熱されて
弾性率が低下して不安定な状態の仮接着した積層シート
であっても、安定的に仮ラミネート部分から本ラミネー
ト部分に搬送移入できることとなる。これに対して、例
えば図3に示す従来の熱ラミネート装置では、接触加熱
による予熱ロール95a〜c等により蛇行したり、張力
によって伸ばされたりする等して、この点でも結晶性熱
可塑性樹脂シートの加工は不可能な構造であった。
をラミネートロール5から剥離して、クーリングロール
71〜73によって段階的に冷やした後、対を成す排紙
側ニップロール82でニップされつつ引き出されて巻取
ロール13に巻き取られる。
る熱ラミネート装置の一例であるが、この装置では、従
来の熱ラミネート装置と異なり、積層する樹脂シートの
接着面側と非接着面側との両方の表面を別々に加熱制御
でき、また、2段階の加圧積層部分がある点が大きく異
なる。例えば、図3に示した従来の熱ラミネート装置で
は、各種予熱ロール及び予熱用パネルヒータのシートに
対する加熱面は、特に接着面側を加熱するというもので
はなく、装置的構造の容易性から、主として積層後のシ
ートの表側面(例えば、シートS1に対する予熱ロール
92a、予熱用パネルヒータ94a〜94c、予熱ロー
ル95a〜95c)である。ただ一つ接着面側に有るも
のはシートS2に対する予熱ロール92bである。
ール21及び22は、内部が中空になった鉄、銅等の金
属製ロールで空芯内に油、水(水蒸気)等の伝熱媒体を
循環させたり、誘電加熱で温度制御を行う。ロール表面
は耐蝕性を考慮したクロムメッキ或いは剥離性を考慮し
たフッ素樹脂コートがされていても良い。この加熱ロー
ル21及び22は、積層すべき2層の樹脂シートの接着
面に接触して接着面側を非接着面側に対してより高い温
度に加熱する。なお、この様な接触による伝導加熱によ
らずに次に説明する非接触加熱のヒータに置き換えるこ
ともできる。予熱用パネルヒータ41及び42、さらに
予熱用パネルヒータ43及び44は、近赤外線〜遠赤外
線を輻射する電熱線ヒータ、セラミックヒータ等の電熱
式赤外線輻射ヒータ、或いは高周波交流電場を用いた誘
電加熱、或いは熱風の吹き付け、或いはYAGレーザ、
炭酸ガスレーザ等の赤外線レーザ光の照射等の非接触で
加熱して加熱調整が容易にできるものとする。シートの
接着面側表面近傍のみを加熱するという点から仮ラミネ
ート直前のヒータ41、42は電熱線輻射ヒータ、或い
は熱風の吹き付け、或いは赤外レーザのパルス照射が好
ましい。又、本ラミネート直前のヒータ43、44はシ
ート厚み方向全体を均一に加熱するという点から、遠赤
外線を輻射するセラミック電熱ヒータ、誘電加熱が好ま
しい。圧着ロール31及び32も、加熱ロール21及び
22と同様に内部が中空の金属製ロールで空芯内に油、
水(水蒸気)等の伝熱媒体を循環させたり、誘電加熱で
温度制御を行う。但し、一方のロールの表面にはシリー
コンゴム等のゴム状弾性体を被覆しておくことが好まし
い。
で、表面はエンボスをしない場合にはクロムメッキ等で
鏡面平滑に仕上げてある。また、エンボスをする場合
は、すなわちエンボスロールの場合は銅メッキを介し
て、或いは介さずにエッチング、彫刻等の手法により表
面に所望の凹凸模様を施したものを使う。或いはエンボ
スロールとしては、ロール表層を樹脂或いはセラミック
スにしてレーザ彫刻を行ったもの、或いは電鋳法によっ
て所望の凹凸模様の母型上に銅等の金属をメッキして作
ったもの等も使用できる。なお、凹凸模様は木目導管、
皮紋、砂目、梨地、ヘアライン、布目等である。圧胴6
は中空の金属製ロールでその表面をシリコーンゴム層等
のゴム状弾性体で被覆し、空芯内には温水を循環させて
温度制御したロールである。そして冷却ロール71〜7
3は、金属等の熱伝導率の高い材質の中空ロール内に冷
水等の低温の伝熱媒体を流通された構成のロールであ
る。冷却は或いはヒートパイプに接触させたりしても良
い。また、冷風の吹付けを併用しても良い。
ルで冷却されてから巻取ロールで巻き取る迄の間に塗工
装置を設ければ、オンラインで熱ラミネートと塗工とを
同時に行うこともできる。塗工装置としては、例えば、
グラビアコーター、ロールコーター、コンマコーター等
の各種のウェブ用コーターで良く、また必要に応じて乾
燥ゾーンを併設する。また、塗工装置の前に、或いは塗
工装置が設けない場合でも、適宜、水濡れ性、接着性能
の向上を図る為にコロナ処理でラミネート後の積層フィ
ルムの表面を改質しても良い。
樹脂シートとしては、熱可塑性樹脂からなるものである
が、特に結晶性の熱可塑性樹脂からなるシートにおい
て、優れた適性を発揮する。これらの結晶性熱可塑性樹
脂としては、例えば、ポリエチレン、ポリプロピレン、
ポリブテン、ポリメチルペンテン等のポリオレフィン系
樹脂、或いは、ナイロン6、ナイロン66等の線状ポリ
アミド、ポリエチレンテレフタレート、ポリブチレンテ
レフタレート等のポリエステル系樹脂等に有効である。
また、この他、ポリ塩化ビニル樹脂、アクリル樹脂等で
も有効である。また、樹脂シートの厚みは、通常10〜
500μm程度である。
トの熱ラミネート方法でいうところの、結晶融解温度に
ついて説明する。一般に純粋な結晶の場合は、固体状態
から液体状態に変化する結晶融解温度は、融点として一
義的に定義される得る物理量である。ところが、柔軟な
分子鎖からなる通常の結晶性の高分子物質の場合には、
固体状態は無定形領域と結晶領域(微結晶)とからなっ
ており、この微結晶は種々の大きさ、種々の内部欠陥等
により安定状態の異なった種々の集合状態になってお
り、その結果、結晶性(熱可塑性)高分子では、純粋結
晶の様な明確な融点はなく、或る広がりを持った融点を
示す。従って、示差熱分析(DTA)や示差走査熱分析
(DSC)等による熱分析の際のピーク温度が融点とな
る。また、ピークが複数でる事も有るが、この場合、本
発明の方法では主ピークを融点として扱えば良い。そし
て、ピークにはすそ野があり、これは試料中の微結晶の
中には主ピークの温度以下の温度で結晶の融解が起こる
ものを示すものだが、このすそ野の開始地点の温度がい
ずれかの微結晶の融解が開始する温度であり、すなわち
補外融解開始温度を、本発明では結晶融解温度として捉
える。
これは温度−機械的特性(例えば弾性率E)との関係で
も同様なことが言える。これを図示したのが図2であ
る。図2は、樹脂シートの温度制御を結晶融解温度等に
注目して行う本発明の熱ラミネート方法と従来の熱ラミ
ネート方法を、樹脂の弾性率と温度との関係で対比した
説明図である。同図で横軸は温度T、縦軸は弾性率Eで
あり、Ccrysで指示される曲線が結晶性熱可塑性樹
脂の曲線を、Camorで指示される曲線が非晶性熱可
塑性樹脂の曲線を概念的に示したものである。非晶性の
熱可塑性樹脂では、弾性率は温度が上昇するにつれてガ
ラス転移点Tg付近で段差が生じて低下し、その後、徐
々に低下しながら、弾性率の低下度合いが増して融点T
m又は流動点(Tm)で急激に低下する。そして、樹脂
シートが熱ラミネートされるには、適度な粘着性と機械
的強度が必要であり、この結果、弾性率には加工適正上
限弾性率Euと加工適正下限弾性率Elとの間に、適正
加工弾性率範囲ΔEが存在する。一方、結晶性熱可塑性
樹脂Ccrysの場合には、弾性率は温度の上昇ととも
に、ガラス転移点Tgで若干の段差をともなって低下
し、その後、徐々に減少して、微結晶が融解が進行する
と共に弾性率の低下が激しくなり、融点で最も弾性率の
低下が激しくなり、その後、流動化していく。適正加工
弾性率範囲ΔEにおける弾性率の低下の度合いは、結晶
性熱可塑性樹脂は非晶性熱可塑性樹脂に比べて急峻であ
る為に、結晶性熱可塑性樹脂の適正加工温度範囲ΔTc
rysは非晶性熱可塑性樹脂の適正加工温度範囲ΔTa
morに比べて狭く、これが従来の熱ラミネート装置で
は結晶性熱可塑性樹脂シートを加工できない理由であ
る。
トの熱ラミネート方法では、適正加工温度範囲ΔEを実
現する結晶性熱可塑性樹脂の適正加工温度範囲ΔTcr
ysから逸脱しても問題無く熱ラミネートを行うべく、
少なくとも2層の樹脂シートが粘着を発現して仮固定で
きるまで(最終的なラミネート接着力がなくてもまだ良
い)に加熱するために、微結晶が融解を開始しだす温度
として前記結晶融解温度以上に、接着面表面近傍側のみ
を加熱して仮ラミネートを行う。そして、接着とは関係
ない非接着面近傍側は温度を上げずに結晶融解温度未満
として、こちらの方で樹脂シートの強度を保たせる様に
するのである。従って接着面表面近傍の温度が例えば融
点以上に上昇し流動性が出たとしても、非接着面(裏
面)は結晶融解温度未満であり十分な強度を有し、又、
2層複合されている為、シートが大きく変形する事は無
い。一方、接着面表面近傍が例えば結晶融解温度未満に
下降しても、後の本ラミネート工程で接着力不足等は解
消される。その結果、ラミネートの適正加工温度範囲は
実質上大幅に拡大する。また、非接着面表面近傍を結晶
融解温度未満であるが加熱しておくのは、接着面側の加
熱を助ける為、また次の本ラミネートの予熱も兼ねてい
る。
めば、後は、積層されたシート全体の熱歪み等を除去す
る為に、また、最終的なラミネート強度を出す為に、
(さらにエンボスの場合はエンボスする為に)、積層シ
ート全体を結晶融解温度以上に加熱する。この時も融点
未満の温度として積層シート全体の破断、変形、ガイド
ローラへの粘着を防止する。その後は、従来公知の熱ラ
ミネート同様に室温まで冷却することとなる。
う事で1段階で行う事に比べて、安定的に製造できる利
点がある。もしも、一段階で行おうとすれば、例えば図
1において、ラミネートロール5と圧胴6との間に、予
熱された2層の樹脂シートを供給する際に、他方のシー
トは右側から、もう片方のシートは左側からと斜めに供
給しなければならない。しかし、予熱された結晶性熱可
塑性樹脂シートの機械的強度は弱く不安定なので、斜め
からの供給ではシートを張力を与えて供給しないと自重
でたるみが生じるし、また張力を与えて供給すると延び
て破断が生じる。結局、真上から2層のシートを供給す
ることが必要となり、また2層のシートを隣接して供給
すれば、シートのバタツキにより予熱されたシートが粘
着により不意に接着したりして安定しない。従って、意
識的に且つ安定的に2層のシートを(仮)接着させてか
ら、ラミネートロールと圧胴との間に供給することが必
要となる。
の熱ラミネート方法は、積層する2層の樹脂シートの接
着面に熱融着性接着剤層が形成されていなくても、熱ラ
ミネートが可能であるが、熱融着性接着剤層が形成され
ている場合でも、上述の本発明の方法は拡張できる。そ
れは、熱融着性接着剤層の接着力発現温度と、熱融着性
接着剤層以外の樹脂シート部分の樹脂の結晶融解温度に
注目して、接着面側の表面近傍は前者の接着力発現温度
以上にして、非接着面側の表面近傍は後者の結晶融解温
度未満になる様にして最初の仮ラミネートを行う様にす
る。後の本ラミネートは前述と同様に、樹脂シートの樹
脂の結晶融解温度以上且つ融点以下の温度に積層された
両シートの両層を加熱して行えば良い。この場合、熱融
着性接着剤は熱で融着性を発現する接着剤であれば、ド
ライラミネート用接着剤等、従来公知のもので良く、特
に限定されない。また、接着力発現温度は、両シートの
結晶融解温度以上であっても、未満であっても支障は無
い。この様に、熱融着性接着剤層が形成された結晶性熱
可塑性樹脂シートは、単層ではなく最初から2層構成の
結晶性熱可塑性樹脂シートとして捉えることができ、こ
れら各層の、結晶融解温度、融点等の熱特性に注目して
熱ラミネートを行えば良いことになる。
熱ラミネート方法を実施例で説明する。
で、ポリプロピレン製で厚さ100μmの樹脂シート
(結晶融解温度130℃、融点176℃)を2層用意
し、巻取から帯状連続シートとして供給して、熱ラミネ
ートを行った。加熱ロール21及び22の表面温度は1
40℃として結晶融解温度よりも高く設定し、また、圧
着ロール31及び32の表面温度は95℃として結晶融
解温度よりも低く設定し、さらに予熱用パネルヒータ4
1及び42により適量の赤外線を輻射し、加熱ロールの
接触を離れてから圧着ロールで2層のシートが圧着され
る迄の間の冷却を防止する。そして圧着ロール31及び
32による圧着直前の両シートの接着面の表面温度を1
40℃、非接触面の表面温度を95℃に保つ。以上の様
にして仮ラミネート工程が終了した積層シートは、圧着
ロール31及び32の間から垂直に下方に落として次の
本ラミネートの為の圧胴5及びラミネートロール6の間
に導かれる。その際、仮接着が行われた積層シートを両
面から別の予熱用パネルヒータ43及び44によって赤
外線輻射で加熱し、今度は両面の表面温度を、結晶融解
温度以上で融点よりも低い170℃に調整し、加熱直後
にラミネートロール5と圧胴6との間に積層シートが入
る様にして、本ラミネートを行う。ラミネートロール及
び圧胴は表面温度を60℃に設定し、その後、冷却ロー
ル71、72及び73により室温まで冷却する。冷却ロ
ールの表面温度は、ラミネートロールに近い方の上流側
から順に、40℃、30℃、25℃とする。なお、シー
トの送り速度は25m/minとした。
構成要素は次の様なものである。加熱ロール21及び2
2は表面をクロムメッキした中空の鉄製ロールで空芯内
を高圧蒸気を通して加熱する。圧着ロール31及び32
は、片方は表面クロムメッキの中空鉄製ロールで空芯を
熱水を通して加熱し、もう片方は中空鉄製ロール表面を
シリコーンゴム層で被覆し、空芯内を熱水を通して加熱
する構造である。次に、予熱用パネルヒータ41、42
はニクロム線条電熱ヒータを、又、予熱パネルヒータ4
3、44は電熱加熱式のセラミックス面輻射ヒータをそ
れぞれ用いたもので輻射熱により加熱するものである。
また、ラミネートロール5は空芯の鉄製ロールで表面は
クロムメッキを行い鏡面平滑に仕上げてある。空芯内に
温水を循環させて加熱する。また、圧胴6は空芯鉄製ロ
ールの表面を硬度50°のシリコーンゴム層で被覆し、
空芯内には温水を循環させて加熱する構造である。そし
て、冷却ロール71〜73は空芯鉄製ロールで表面をク
ロムメッキで鏡面仕上げしたもので、空芯内を冷水を通
して冷却する構造である。
の様な結晶性を有する熱可塑性樹脂シートを、、熱融着
性接着剤を該樹脂シートに施すこと無く、充分な接着力
で効率良く、高速でなお且つシートの歪み、変形、破
断、ガイドローラとの粘着を防ぎつつ、ラミネート(ま
た、必要に応じてエンボスも)する事ができる。また、
加工条件、特にシート加熱条件のバラツキによる影響を
受けにくい。また、樹脂シートに熱融着性接着剤を施し
てある樹脂シートを用いる場合に於いても、該接着剤の
接着力発現温度如何にかかわらず樹脂シートの非接着面
近傍が結晶融解温度未満で仮ラミネート工程が行われる
為、シートの歪み、変形、破断、ガイドローラ等への粘
着の防止効果が特に高い。また、本ラミネート工程で結
晶融解温度以上に加熱して加圧圧接される為、両樹脂シ
ートの接着力の低下、残留応力(歪み)の発生は生じな
い。
ート方法を実現し得る熱ラミネート装置の装置構成の一
例を示す概念図。
して行う本発明の熱ラミネート方法と従来の熱ラミネー
ト方法を、樹脂の弾性率と温度との関係で対比した説明
図。
を行う熱ラミネート装置の装置構成の一例を示す概念
図。
Claims (2)
- 【請求項1】 2層の結晶性熱可塑性樹脂シートを熱融
着により積層、接着する熱ラミネート方法であって、 (a) 該樹脂シートの各々の接着面に熱融着性接着剤層を
形成せずに、該2層の樹脂シートを、各々の接着面表面
近傍が該樹脂シートの樹脂の結晶融解温度以上に、また
各々の非接着面の表面近傍が該樹脂シートの樹脂の結晶
融解温度未満になる様に加熱し、 (b) 次いで、該2層の樹脂シートを、その接着面同士が
対面するような向きで両面から加圧積層し、 (c) 次いで、該2層の樹脂シートの両層を共に、該樹脂
シートの樹脂の結晶融解温度以上で且つ融点未満にまで
加熱させ、 (d) 次いで、該2層の樹脂シートを両面から加圧し、そ
して該2層の樹脂シートを結晶融解温度未満にまで冷却
し、 (e) 次いで、該2層の樹脂シートを室温にまで冷却す
る、工程からなることを特徴とする、結晶性熱可塑性樹
脂シートの熱ラミネート方法。 - 【請求項2】 2層の結晶性熱可塑性樹脂シートを熱融
着により積層、接着する熱ラミネート方法であって、 (a) 該樹脂シートの各々の接着面に接着力発現温度が該
樹脂シートの樹脂の結晶融解温度未満である熱融着性接
着剤層を形成したものを用意し、該2層の樹脂シート
を、各々の接着面表面近傍が上記接着剤の接着力発現温
度以上に、また各々の非接着面の表面近傍が該樹脂シー
トの樹脂の結晶融解温度未満になる様に加熱し、 (b) 次いで、該2層の樹脂シートを、その接着面同士が
対面するような向きで両面から加圧積層し、 (c) 次いで、該2層の樹脂シートの両層を共に、該樹脂
シートの樹脂の結晶融解温度以上で且つ融点未満にまで
加熱させ、 (d) 次いで、該2層の樹脂シートを両面から加圧し、そ
して該2層の樹脂シートを結晶融解温度未満にまで冷却
し、 (e) 次いで、該2層の樹脂シートを室温にまで冷却す
る、工程からなることを特徴とする、結晶性熱可塑性樹
脂シートの熱ラミネート方法。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34819395A JP3813223B2 (ja) | 1995-12-19 | 1995-12-19 | 結晶性熱可塑性樹脂シートの熱ラミネート方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34819395A JP3813223B2 (ja) | 1995-12-19 | 1995-12-19 | 結晶性熱可塑性樹脂シートの熱ラミネート方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09169055A true JPH09169055A (ja) | 1997-06-30 |
| JP3813223B2 JP3813223B2 (ja) | 2006-08-23 |
Family
ID=18395379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34819395A Expired - Fee Related JP3813223B2 (ja) | 1995-12-19 | 1995-12-19 | 結晶性熱可塑性樹脂シートの熱ラミネート方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3813223B2 (ja) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340194A (ja) * | 2001-05-16 | 2002-11-27 | Bridgestone Corp | カバー一体型ガスケット |
| JP2006264017A (ja) * | 2005-03-23 | 2006-10-05 | Fuji Photo Film Co Ltd | 積層体のラミネート方法及びラミネート装置 |
| KR100633264B1 (ko) * | 1998-06-26 | 2007-03-02 | 생-고뱅 베뜨로떽스 프랑스 에스. 아. | 합성시트 제조방법 및 장치 |
| JP2009519146A (ja) * | 2005-12-13 | 2009-05-14 | ベネツケ−カリコ・アーゲー | 多色フィルムを製造する方法 |
| JP2010030308A (ja) * | 2009-10-28 | 2010-02-12 | Hitachi Engineering & Services Co Ltd | 無接着剤アラミド−ポリフェニレンサルファイド積層体の製造方法 |
| US8709193B2 (en) | 2008-07-30 | 2014-04-29 | Hitachi Engineering & Services Co., Ltd. | Method of manufacturing adhesive-free laminate of aramid paper and polyphenylene sulfide film, and insulation material and insulation structure for rotating electric machinery |
| US9956722B2 (en) | 2010-10-18 | 2018-05-01 | STRATEC CONSUMABLES GmbH | Method and device for thermocompression bonding |
| WO2019097942A1 (ja) * | 2017-11-14 | 2019-05-23 | トタニ技研工業株式会社 | 溶着方法および溶着装置 |
| JP2020037219A (ja) * | 2018-09-04 | 2020-03-12 | 東洋製罐グループホールディングス株式会社 | ヒートシール性フィルムの製造方法 |
| JP2020037235A (ja) * | 2018-09-05 | 2020-03-12 | 東レ株式会社 | 減圧チャンバー、キャスト冷却装置、樹脂シートの製造装置及び樹脂シートの製造方法 |
-
1995
- 1995-12-19 JP JP34819395A patent/JP3813223B2/ja not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100633264B1 (ko) * | 1998-06-26 | 2007-03-02 | 생-고뱅 베뜨로떽스 프랑스 에스. 아. | 합성시트 제조방법 및 장치 |
| JP2002340194A (ja) * | 2001-05-16 | 2002-11-27 | Bridgestone Corp | カバー一体型ガスケット |
| JP2006264017A (ja) * | 2005-03-23 | 2006-10-05 | Fuji Photo Film Co Ltd | 積層体のラミネート方法及びラミネート装置 |
| JP2009519146A (ja) * | 2005-12-13 | 2009-05-14 | ベネツケ−カリコ・アーゲー | 多色フィルムを製造する方法 |
| US8709193B2 (en) | 2008-07-30 | 2014-04-29 | Hitachi Engineering & Services Co., Ltd. | Method of manufacturing adhesive-free laminate of aramid paper and polyphenylene sulfide film, and insulation material and insulation structure for rotating electric machinery |
| JP2010030308A (ja) * | 2009-10-28 | 2010-02-12 | Hitachi Engineering & Services Co Ltd | 無接着剤アラミド−ポリフェニレンサルファイド積層体の製造方法 |
| US9956722B2 (en) | 2010-10-18 | 2018-05-01 | STRATEC CONSUMABLES GmbH | Method and device for thermocompression bonding |
| EP2441518B1 (en) * | 2010-10-18 | 2020-03-18 | Stratec Consumables GmbH | Method and device for thermocompression bonding |
| WO2019097942A1 (ja) * | 2017-11-14 | 2019-05-23 | トタニ技研工業株式会社 | 溶着方法および溶着装置 |
| JPWO2019097942A1 (ja) * | 2017-11-14 | 2019-12-19 | トタニ技研工業株式会社 | 溶着方法および溶着装置 |
| CN111315559A (zh) * | 2017-11-14 | 2020-06-19 | 户谷技研工业株式会社 | 熔接方法及熔接装置 |
| EP3711930A4 (en) * | 2017-11-14 | 2020-11-04 | Totani Corporation | WELDING PROCESS AND WELDING DEVICE |
| JP2020037219A (ja) * | 2018-09-04 | 2020-03-12 | 東洋製罐グループホールディングス株式会社 | ヒートシール性フィルムの製造方法 |
| JP2020037235A (ja) * | 2018-09-05 | 2020-03-12 | 東レ株式会社 | 減圧チャンバー、キャスト冷却装置、樹脂シートの製造装置及び樹脂シートの製造方法 |
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| Publication number | Publication date |
|---|---|
| JP3813223B2 (ja) | 2006-08-23 |
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