JP5547392B2 - 吸収性物品の製造方法 - Google Patents
吸収性物品の製造方法 Download PDFInfo
- Publication number
- JP5547392B2 JP5547392B2 JP2008271124A JP2008271124A JP5547392B2 JP 5547392 B2 JP5547392 B2 JP 5547392B2 JP 2008271124 A JP2008271124 A JP 2008271124A JP 2008271124 A JP2008271124 A JP 2008271124A JP 5547392 B2 JP5547392 B2 JP 5547392B2
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- JP
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- region
- predetermined
- ultrasonic
- continuum
- absorbent article
- 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.)
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- 239000002250 absorbent Substances 0.000 title claims description 54
- 238000004519 manufacturing process Methods 0.000 title claims description 27
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- 238000005304 joining Methods 0.000 claims description 54
- 238000005520 cutting process Methods 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 claims 2
- 235000019169 all-trans-retinol Nutrition 0.000 claims 1
- 239000011717 all-trans-retinol Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 description 16
- 238000012806 monitoring device Methods 0.000 description 8
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- 230000000694 effects Effects 0.000 description 5
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- 238000005286 illumination Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15739—Sealing, e.g. involving cutting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15772—Control
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- 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
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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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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- 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
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
- B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
- B29C65/087—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using both a rotary sonotrode and a rotary anvil
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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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- 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
- B29C65/7879—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 said parts to be joined moving in a closed path, e.g. a rectangular path
- B29C65/7882—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 said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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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- 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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- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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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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- B29C66/00—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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
- B29C66/223—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a triangle wave or of a sawtooth wave, e.g. zigzagged
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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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- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
- B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- 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
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- 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
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- B29C66/91651—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 by controlling or regulating the heat generated by Joule heating or induction heating
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- 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
- B29C66/91651—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 by controlling or regulating the heat generated by Joule heating or induction heating
- B29C66/91653—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 by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the voltage, i.e. the electric potential difference or electric tension
-
- 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
- B29C66/91651—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 by controlling or regulating the heat generated by Joule heating or induction heating
- B29C66/91655—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 by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
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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
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
-
- 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
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
- B29C66/92441—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time
-
- 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
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
- B29C66/9292—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams
- B29C66/92921—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams in specific relation to time, e.g. pressure-time diagrams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
- A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
- A61F2013/15869—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding with ultrasonic energy
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
-
- 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
-
- 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
-
- 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
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
- B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams
-
- 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
- B29L2031/48—Wearing apparel
- B29L2031/4871—Underwear
- B29L2031/4878—Diapers, napkins
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Manufacturing & Machinery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
以下において、本発明に係る第1実施形態について、図面を参照しながら説明する。具体的には、(1)吸収性物品の構成、(2)超音波接合装置の構成、(3)超音波接合装置の動作、(4)吸収性物品の製造方法、(5)作用・効果について、説明する。
まず、第1実施形態に係る吸収性物品1の構成について、図面を参照しながら説明する。図1は、第1実施形態に係る吸収性物品1の斜視図である。
次に、第1実施形態に係る超音波接合装置100の構成について、図面を参照しながら説明する。図2は、第1実施形態に係る超音波接合装置100の斜視図である。図3は、第1実施形態に係る超音波接合装置100の側面図(図2のA矢視図)である。図4は、第1実施形態に係る吸収性物品1の接合領域40に対応する連続体10の所定領域40Aを示す図である。
アンビルロール110は、MD方向に向かって回転するとともに、連続体10を支持しながら連続体10をMD方向に向けて搬送する。アンビルロール110の外周110Aには、吸収性物品1の接合領域40に対応する連続体10の所定領域40Aに対向して配置される一対の突起部111,111’が設けられている。なお、連続体10の所定領域40Aとは、図4に示すように、連続体10が切断される境界、すなわち、超音波ホーン120がアンビルロール110に設けられる突起部111,111’と協働して連続体10を挟み込む領域を示す。
超音波ホーン120は、吸収性物品1の接合領域40に対応する連続体10の所定領域40Aをアンビルロール110側に向けて押圧するとともに、突起部111,111’と協働して連続体10を挟み込むことによって連続体10の所定領域40Aに超音波振動を付与する。
超音波振動子130は、超音波振動を起こすとともに、起こした超音波振動を超音波ホーンに与える。超音波振動子130は、超音波振幅を増幅するブースター160を介して、加圧アーム150に固定されている。
ガイドロール140は、アンビルロール110と超音波ホーン120との間に連続体10を導く第1ガイドロール140Aと、連続体10の所定領域40Aに超音波振動が付与された連続体10を次工程に導く第2ガイドロール140Bとを有している。
監視装置200は、搬送中の連続体10の上側に位置する監視部210と、搬送中の連続体10の下側に位置する照明部220とを有する。
次に、第1実施形態に係る超音波接合装置の動作について、簡単に説明する。超音波接合装置100では、連続体10の搬送に合わせてアンビルロール110が回転する。アンビルロール110の回転に伴い、突起部111,111’も回転する。
次に、第1実施形態に係る吸収性物品の製造方法の構成について、図面を参照しながら説明する。図5は、第1実施形態に係る吸収性物品の製造方法示す模式図である。
部材載置工程では、連続体(例えば、アウターシートの連続体)上に各部材を載置する。各部材とは、例えば、ギャザー(フィットギャザー2及びレッグギャザー3)、防水シート、吸収体、トップシート(不図示)などである。
脚周り形成工程では、部材載置工程の後に、カットロール300によって、各部材が載置された連続体10に脚周り領域50(例えば、レッグホール)を形成する。
折り工程では、脚周り形成工程の後に、折り装置400によって、脚周り領域50が形成された連続体10を連続体10のCD方向の中心線CLで2つに折る。つまり、折り工程では、前胴回り領域20Aの連続体及び後胴回り領域20Bの連続体を重ね合わせる。
接合・第1接合状態判定工程では、折り工程の後に、接合工程と、第1接合状態判定工程とが同時に行われる。
接合工程では、吸収性物品1の接合領域40に対応する連続体10の所定領域40Aにおいて、超音波接合装置100によって、前胴回り領域20Aの連続体と後胴回り領域20Bの連続体とを接合する。
第1接合状態判定工程について、図面を参照しながら説明する。図6は、第1実施形態に係る超音波接合装置100の出力信号を示すグラフである。
第2接合状態判定工程について、図面を参照しながら説明する。図7は、第1実施形態に係る吸収性物品1の接合領域40に対応する連続体10の所定領域40Aを示す拡大図である。
切断工程では、接合状態判定工程の後に、切断装置500によって、吸収性物品1の接合領域40に対応する連続体10の所定領域40AをCD方向に切断し、吸収性物品1(図1参照)を形成する。
排出工程では、切断工程の後に、吸収性物品1のうち、超音波接合装置100から出力された第1所定信号、又は、監視装置200から出力された第2所定信号の少なくとも一方に対応する吸収性物品1を排出する。つまり、第1所定信号又は第2所定信号が出力されていない場合には、最終製品の吸収性物品1が形成される。
第1実施形態では、第1接合状態判定工程及び第2接合状態判定工程が行われることによって、超音波接合装置100の出力信号が第1規定条件を満たしているか否かを判定でき、かつ、連続体10の所定領域40A内の接合面積が第2規定条件を満たしているか否かを判定できる。このため、超音波接合装置100の出力信号と連続体10の所定領域40A内の接合面積とを監視できるため、超音波接合装置100の出力信号のみを監視する場合や、所定領域40A内の接合面積のみを監視する場合と比べて、連続体10の所定領域40Aの接合状態に不良が発生したか否かを確実に検出できる。
以下において、本発明に係る第2実施形態について、図面を参照しながら説明する。具体的には、(1)超音波接合装置の構成、(2)超音波接合装置の動作、(3)吸収性物品の製造方法、(4)作用・効果について、説明する。なお、上述した第1実施形態に係る超音波接合装置と同一部分には同一の符号を付して、相違する部分を主として説明する。
まず、第2実施形態に係る超音波接合装置100Aの構成について、図面を参照しながら説明する。図8は、第2実施形態に係る超音波接合装置100Aを示す斜視図である。図9は、第2実施形態に係る超音波接合装置100Aを示す側面図(図8のB矢視図)である。
支持基台710は、生産ラインの基礎上に固定される支持ベース711と、支持ベース711から鉛直に立設される支持フレーム712とを有する。
回転円盤720は、支持フレーム712の表側盤面(図8の手前側)に設けられている。回転円盤720は、支持フレーム712に回転自在な回転中心軸780(図9参照)を中心に、ベアリング(不図示)などを介して回転する。
ドラム730は、回転円盤720と同心円上に設けられている。ドラム730は、回転円盤720と一緒に回転する円筒体である。ドラム730の外周面の一部(図面では上部)には、連続体10が巻き付いている。
挟持ユニット740は、回転円盤720の裏側盤面(図8の奥側)で放射状に設けられる6つの挟持ユニット740によって構成されている。挟持ユニット740は、固定アーム741と、揺動アーム742とを有する。
固定アーム741は、ドラム730の内周側に設けられている。固定アーム741は、回転円盤720及びドラム730と一緒に回転する。固定アーム741には、超音波を発振する超音波ホーン741Aが設けられる。
揺動アーム742は、ドラム730を挟んで固定アーム741と対向する位置で揺動可能に設けられる。揺動アーム742は、カム機構743によってドラム730の回転位置に応じて揺動(開閉)する。揺動アーム742は、固定アーム741と同様に、回転円盤720及びドラム730と一緒に回転する。揺動アーム742には、超音波ホーン741Aと協同して連続体10の所定領域40A全体を挟持するアンビル742Aが設けられる。
案内ロール750は、ドラム730上に連続体10を導く一対の第1案内ロール750Aと、連続体10の所定領域40Aに超音波振動が付与された連続体10を次工程に導く第2案内ロール750Bとを有している。
次に、第2実施形態に係る超音波接合装置100Aの動作について、簡単に説明する。超音波接合装置100Aでは、連続体10の搬送に合わせて、回転円盤720、ドラム730及び挟持ユニット740(固定アーム741及び揺動アーム742)が回転する。
次に、第2実施形態に係る吸収性物品の製造方法の構成について説明する。吸収性物品の製造方法は、第1実施形態と同様に、部材載置工程と、脚周り形成工程と、折り工程と、接合・第1接合状態判定工程と、第2接合状態判定工程と、切断工程と、排出工程とを少なくとも有する。
接合工程では、折り工程の後に、吸収性物品1の接合領域40に対応する連続体10の所定領域40Aにおいて、超音波接合装置100Aによって、前胴回り領域20Aの連続体と後胴回り領域20Bの連続体とを接合する。
次に、第1接合状態判定工程について、図面を参照しながら説明する。図10は、第2実施形態に係る超音波接合装置100Aの出力信号を示すグラフである。
第2実施形態では、第1実施形態と同様の作用・効果を得ることができる。特に、出力信号の電力のピーク値、出力信号の電力量及び出力信号の電力のプロファイルを監視できるため、連続体10の所定領域40Aの接合状態に不良が発生したか否かをさらに確実に検出可能となる。
上述したように、本発明の実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなろう。
Claims (6)
- 前胴回り領域と、後胴回り領域と、該前胴回り領域と該後胴回り領域との間の股下領域とを具備する吸収性物品の製造方法であって、
搬送中の前記前胴回り領域の連続体及び前記後胴回り領域の連続体を重ね合わせた後、前記前胴回り領域と前記後胴回り領域との接合領域に対応する所定領域において、超音波接合装置によって、該前胴回り領域の連続体と該後胴回り領域の連続体とを接合する工程Aと、
前記超音波接合装置の出力信号が第1規定条件を満たしていないと判定された場合に、不良状態を示す第1所定信号を出力する工程Bと、
前記所定領域内の接合面積が第2規定条件を満たしていないと判定された場合に、不良状態を示す第2所定信号を出力する工程Cとを有し、
前記超音波接合装置の出力信号が前記第1規定条件を満たしていると判定され、かつ、前記所定領域内の接合面積が前記第2規定条件を満たしていないと判定された場合に、前記超音波接合装置の超音波ホーンが前記所定領域に接触する際の傾きを調整することを特徴とする吸収性物品の製造方法。 - 前記前胴回り領域の連続体と前記後胴回り領域の連続体とを接合した状態で搬送する工程と、
前記前胴回り領域の連続体及び前記後胴回り領域の連続体の前記所定領域を、前記前胴回り領域の連続体及び前記後胴回り領域の連続体の搬送方向に交差する方向に切断することによって、前記吸収性物品を形成する工程と、
出力された前記第1所定信号又は前記第2所定信号の少なくとも一方に対応する吸収性物品を排出する工程とを更に有することを特徴とする請求項1に記載の吸収性物品の製造方法。 - 前記工程Aにおいて、前記出力信号を連続的に出力している状態の前記超音波接合装置の超音波ホーンを、前記所定領域全体に対して接触させ、
前記工程Bにおいて、所定期間内に、前記出力信号の電流、電圧又は電力が、所定範囲外の値となった場合に、該出力信号が前記第1規定条件を満たしていないと判定されることを特徴とする請求項1又は2に記載の吸収性物品の製造方法。 - 前記工程Aにおいて、前記超音波接合装置の超音波ホーンを、前記所定領域全体に対して接触させ、
前記工程Aにおいて、前記超音波接合装置の超音波ホーンは、前記所定領域全体に接触されている間に、前記出力信号を出力しており、
前記工程Bにおいて、所定期間内に、前記出力信号の電力のピーク値又は電力量が所定値に到達しない場合、又は、前記出力信号の電力のプロファイルが所定プロファイルと一致しない場合に、該出力信号が前記第1規定条件を満たしていないと判定されることを特徴とする請求項1又は2に記載の吸収性物品の製造方法。 - 前記工程Cにおいて、前記所定領域内の一部分における接合面積が所定面積以上である場合に、前記所定領域内の接合面積が前記第2規定条件を満たしていると判定されることを特徴とする請求項1乃至4のいずれか一項に記載の吸収性物品の製造方法。
- 前記超音波ホーンは、
前記工程Aを実施する所定期間内に、前記工程Bにて前記第1規定条件を満たしていない場合には、前記所定期間後において、前記所定領域への超音波振動の付与を停止し、前記所定領域との接触を解除するとともに、前記第1所定信号を出力し、
前記工程Aを実施する所定期間内に、前記工程Bにて前記第1規定条件を満たしていた場合には、該第1規定条件を満たした際、前記所定領域への超音波振動の付与の停止又は前記所定領域との接触の解除を行うことを特徴とする請求項1乃至5のいずれか一項に記載の吸収性物品の製造方法。
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