BE876499A - METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS - Google Patents

METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS

Info

Publication number
BE876499A
BE876499A BE0/195353A BE195353A BE876499A BE 876499 A BE876499 A BE 876499A BE 0/195353 A BE0/195353 A BE 0/195353A BE 195353 A BE195353 A BE 195353A BE 876499 A BE876499 A BE 876499A
Authority
BE
Belgium
Prior art keywords
perforated films
manufacturing perforated
manufacturing
films
perforated
Prior art date
Application number
BE0/195353A
Other languages
French (fr)
Inventor
G Raley
J Adams
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 BE876499A publication Critical patent/BE876499A/en

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
BE0/195353A 1978-05-24 1979-05-23 METHOD AND APPARATUS FOR MANUFACTURING PERFORATED FILMS BE876499A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE876499A true BE876499A (en) 1979-11-23

Family

ID=25426652

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/195353A BE876499A (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
DE3476015D1 (en) * 1983-10-17 1989-02-16 Procter & Gamble Method and apparatus for uniformly debossing and optionally aperturing a moving 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
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
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
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
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
ES2092305T3 (en) 1992-04-27 1996-11-16 Dowbrands Inc MICROPERFORATED FILM AND PACKAGING BAG MADE FROM THE SAME.

Family Cites Families (6)

* 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
BE538987A (en) * 1954-06-16 1900-01-01
US3814101A (en) * 1970-09-17 1974-06-04 Union Carbide Corp Disposable absorbent articles
US3038198A (en) * 1956-01-03 1962-06-12 Kendall & Co Apparatus for perforating thermoplastic sheets
US3929135A (en) * 1974-12-20 1975-12-30 Procter & Gamble Absorptive structure having tapered capillaries
JPS51109068A (en) * 1975-03-20 1976-09-27 Maruto Kasei Kogyo Kk KAJITSUTONOYUSOYOPATSUKUO GOSEIJUSHISHIITOOMOTSUTESEIKEISURUHOHO

Also Published As

Publication number Publication date
JPS5736130B2 (en) 1982-08-02
FR2426556B1 (en) 1984-12-14
DE2921078A1 (en) 1979-12-06
FR2426556A1 (en) 1979-12-21
CA1125973A (en) 1982-06-22
GB2021479A (en) 1979-12-05
GB2021479B (en) 1982-04-15
JPS5519594A (en) 1980-02-12

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Legal Events

Date Code Title Description
CA Change of address of the owner of the patent
RE Patent lapsed

Owner name: TREDEGAR INDUSTRIES INC.

Effective date: 19960531