FR2426556A1 - METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS - Google Patents

METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS

Info

Publication number
FR2426556A1
FR2426556A1 FR7913086A FR7913086A FR2426556A1 FR 2426556 A1 FR2426556 A1 FR 2426556A1 FR 7913086 A FR7913086 A FR 7913086A FR 7913086 A FR7913086 A FR 7913086A FR 2426556 A1 FR2426556 A1 FR 2426556A1
Authority
FR
France
Prior art keywords
perforated
film
films
perforated films
manufacture
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
FR7913086A
Other languages
French (fr)
Other versions
FR2426556B1 (en
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.)
Ethyl Corp
Original Assignee
Ethyl Corp
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
Application filed by Ethyl Corp filed Critical Ethyl Corp
Publication of FR2426556A1 publication Critical patent/FR2426556A1/en
Application granted granted Critical
Publication of FR2426556B1 publication Critical patent/FR2426556B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts
    • B29C51/22—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
    • B29C51/225—Thermoforming apparatus having movable moulds or mould parts rotatable about an axis mounted on a vacuum drum
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Forests & Forestry (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Manufacturing & Machinery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

L'invention concerne la fabrication de films perforés. Elle se rapporte à un procédé dans lequel un film thermoplastique est moulé et perforé par application d'une différence de pressions de manière que le film pénètre dans des cavités hexagonales 17 ayant un orifice 18 d'extrémité qui au niveau duquel la feuille se perfore. Les orifices 18 ont des formes elliptiques dont le grand axe est parallèle à la direction de déplacement de l'élément 16 de moulage sur lequel le film est formé. Application à la fabrication de films thermoplastiques perforés pour couches.The invention relates to the manufacture of perforated films. It relates to a method in which a thermoplastic film is molded and perforated by applying a pressure difference so that the film enters hexagonal cavities 17 having an end orifice 18 at which the sheet perforates. The orifices 18 have elliptical shapes, the major axis of which is parallel to the direction of movement of the molding element 16 on which the film is formed. Application to the manufacture of perforated thermoplastic films for diapers.

FR7913086A 1978-05-24 1979-05-23 METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS Granted FR2426556A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90911278A 1978-05-24 1978-05-24

Publications (2)

Publication Number Publication Date
FR2426556A1 true FR2426556A1 (en) 1979-12-21
FR2426556B1 FR2426556B1 (en) 1984-12-14

Family

ID=25426652

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913086A Granted FR2426556A1 (en) 1978-05-24 1979-05-23 METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS

Country Status (6)

Country Link
JP (1) JPS5519594A (en)
BE (1) BE876499A (en)
CA (1) CA1125973A (en)
DE (1) DE2921078A1 (en)
FR (1) FR2426556A1 (en)
GB (1) GB2021479B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441952A (en) * 1981-02-02 1984-04-10 The Procter & Gamble Company Method and apparatus for uniformly debossing and aperturing a resilient plastic web
US4741877A (en) * 1983-10-17 1988-05-03 The Procter & Gamble Company Uniformly debossing and aperturing a moving plastic web using stationary support member in forming area
DE3476015D1 (en) * 1983-10-17 1989-02-16 Procter & Gamble Method and apparatus for uniformly debossing and optionally aperturing a moving plastic web
US4839216A (en) * 1984-02-16 1989-06-13 The Procter & Gamble Company Formed material produced by solid-state formation with a high-pressure liquid stream
SE449298B (en) * 1984-05-15 1987-04-27 Moelnlycke Ab ABSORBING PRODUCT, SUCH AS DAMBINDE, BLOW OR WOUND
US4681793A (en) * 1985-05-31 1987-07-21 The Procter & Gamble Company Non-occluding, liquid-impervious, composite backsheet for absorptive devices
US4591523A (en) * 1985-05-31 1986-05-27 The Procter & Gamble Company Apertured macroscopically expanded three-dimensional polymeric web exhibiting breatheability and resistance to fluid transmission
US4846821A (en) * 1987-08-24 1989-07-11 The Procter & Gamble Company Substantially fluid-impervious microbubbled polymeric web exhibiting low levels of noise when subjected to movement
US4778644A (en) * 1987-08-24 1988-10-18 The Procter & Gamble Company Method and apparatus for making substantially fluid-impervious microbubbled polymeric web using high pressure liquid stream
US4772444A (en) * 1987-08-24 1988-09-20 The Procter & Gamble Company Method and apparatus for making microbubbled and/or microapertured polymeric webs using hydraulic pressure
JP2928665B2 (en) * 1991-08-21 1999-08-03 ユニ・チャーム株式会社 Surface sheet for absorbent article and method for producing the same
TW252915B (en) * 1991-12-25 1995-08-01 Kao Corp
DE69304907T2 (en) 1992-04-27 1997-03-06 Dowbrands Inc Microperforated film and packaging bag made from it

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591921A (en) * 1925-03-25 1926-07-06 St Annes Board Mill Co Ltd Suction cylinder or roll of machines for making paper, paper board, mill board, and the like
US3038198A (en) * 1956-01-03 1962-06-12 Kendall & Co Apparatus for perforating thermoplastic sheets
US3081514A (en) * 1954-06-16 1963-03-19 Johnson & Johnson Foraminous nonwoven fabric
US3814101A (en) * 1970-09-17 1974-06-04 Union Carbide Corp Disposable absorbent articles
US3929135A (en) * 1974-12-20 1975-12-30 Procter & Gamble Absorptive structure having tapered capillaries

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51109068A (en) * 1975-03-20 1976-09-27 Maruto Kasei Kogyo Kk KAJITSUTONOYUSOYOPATSUKUO GOSEIJUSHISHIITOOMOTSUTESEIKEISURUHOHO

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591921A (en) * 1925-03-25 1926-07-06 St Annes Board Mill Co Ltd Suction cylinder or roll of machines for making paper, paper board, mill board, and the like
US3081514A (en) * 1954-06-16 1963-03-19 Johnson & Johnson Foraminous nonwoven fabric
US3038198A (en) * 1956-01-03 1962-06-12 Kendall & Co Apparatus for perforating thermoplastic sheets
US3814101A (en) * 1970-09-17 1974-06-04 Union Carbide Corp Disposable absorbent articles
US3929135A (en) * 1974-12-20 1975-12-30 Procter & Gamble Absorptive structure having tapered capillaries

Also Published As

Publication number Publication date
DE2921078A1 (en) 1979-12-06
GB2021479B (en) 1982-04-15
BE876499A (en) 1979-11-23
FR2426556B1 (en) 1984-12-14
JPS5736130B2 (en) 1982-08-02
JPS5519594A (en) 1980-02-12
CA1125973A (en) 1982-06-22
GB2021479A (en) 1979-12-05

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