ZA791116B - Method of forming tear lines in plastic films and products resulting therefrom - Google Patents

Method of forming tear lines in plastic films and products resulting therefrom

Info

Publication number
ZA791116B
ZA791116B ZA791116A ZA791116A ZA791116B ZA 791116 B ZA791116 B ZA 791116B ZA 791116 A ZA791116 A ZA 791116A ZA 791116 A ZA791116 A ZA 791116A ZA 791116 B ZA791116 B ZA 791116B
Authority
ZA
South Africa
Prior art keywords
plastic films
resulting therefrom
tear lines
products resulting
forming tear
Prior art date
Application number
ZA791116A
Other languages
English (en)
Inventor
A Steimle
L Cancio
G Miller
B Peterson
R Mortellite
Original Assignee
Clopay 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 Clopay Corp filed Critical Clopay Corp
Publication of ZA791116B publication Critical patent/ZA791116B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744—Longitudinal or transverse tubular cavity or cell

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Protection Of Plants (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
ZA791116A 1978-03-27 1979-03-09 Method of forming tear lines in plastic films and products resulting therefrom ZA791116B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/890,327 US4217327A (en) 1978-03-27 1978-03-27 Method of forming tear lines in plastic films

Publications (1)

Publication Number Publication Date
ZA791116B true ZA791116B (en) 1980-09-24

Family

ID=25396545

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA791116A ZA791116B (en) 1978-03-27 1979-03-09 Method of forming tear lines in plastic films and products resulting therefrom

Country Status (18)

Country Link
US (1) US4217327A ( )
JP (1) JPS54160476A ( )
AT (1) AT371404B ( )
AU (1) AU524374B2 ( )
BE (1) BE875102A ( )
BR (1) BR7901797A ( )
CA (1) CA1120680A ( )
CH (1) CH634776A5 ( )
DE (1) DE2912585A1 ( )
DK (1) DK122179A ( )
FR (1) FR2421044A1 ( )
GB (1) GB2018187B ( )
NL (1) NL7901911A ( )
NO (1) NO790971L ( )
NZ (1) NZ189854A ( )
PH (1) PH15093A ( )
SE (1) SE7902690L ( )
ZA (1) ZA791116B ( )

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6635334B1 (en) * 2000-08-08 2003-10-21 3M Innovative Properties Company Cloth-like polymeric films
DK1990092T3 (da) 2001-03-09 2010-05-25 Gen Probe Inc Gennembrydelig hætte
US20030130641A1 (en) * 2001-12-28 2003-07-10 Richlen Sandra A. Absorbent garment having a weakened region
US6838040B2 (en) * 2001-12-28 2005-01-04 Kimberly-Clark Worldwide, Inc. Method for weakening a portion of a web
US7037100B2 (en) * 2002-10-09 2006-05-02 3M Innovative Properties Company Apparatus for flame-perforating films and methods of flame-perforating films
US7059505B2 (en) * 2002-12-02 2006-06-13 Kimberly-Clark Worldwide, Inc. Method and system for breaking a web perforation
US6933030B1 (en) * 2003-02-07 2005-08-23 Tmi Incorporated Continuous web of flexible plastic strips for strip door systems
US7138169B2 (en) 2003-03-05 2006-11-21 3M Innovative Properties Company Cloth-like polymeric film with directional tear
US7067185B2 (en) 2003-06-11 2006-06-27 3M Innovative Properties Company Reinforced hook web
JP4043471B2 (ja) * 2004-10-26 2008-02-06 株式会社イシダ ディスプレイストリップ及び商品展示体
US7531228B2 (en) * 2005-11-23 2009-05-12 Alcan Packaging Flexible France Dual scored easy open film
EP1849579A1 (de) * 2006-04-26 2007-10-31 Nordenia Deutschland Halle GmbH Werk Steinfeld Verfahren zur Herstellung einer Folie für Aufreissverpackungen
EP1974894A1 (fr) * 2007-03-24 2008-10-01 Aisapack Holding SA Zone de déchirure pour film en plastique
US10427851B2 (en) * 2010-12-30 2019-10-01 Mark Steele Package with heat score
WO2015143291A1 (en) * 2014-03-20 2015-09-24 The Procter & Gamble Company Humidity-stable package of disposable absorbent articles with wetness indicators
CN113665978B (zh) * 2021-08-30 2022-12-09 业成科技（成都）有限公司 保护膜以及触控显示模组

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626302A (en) * 1947-09-09 1953-01-20 Western Electric Co Cable with weakened stripping plane
US3086692A (en) * 1959-02-02 1963-04-23 Reynolds Metals Co Unitary sectionable container
US3812002A (en) * 1964-07-01 1974-05-21 Continental Can Co Laminate construction
DE1218318B (de) * 1965-05-11 1966-06-02 Hans Josef Anschuetz Verfahren zur Herstellung kunststoffbeschichteter Flaechengebilde
US3790744A (en) * 1971-07-19 1974-02-05 American Can Co Method of forming a line of weakness in a multilayer laminate
US3719548A (en) * 1971-08-06 1973-03-06 Ludlow Corp Fracturable adhesive backing
US4093761A (en) * 1972-03-08 1978-06-06 Taylor Industries, Inc. Sheet with breakaway line

Also Published As

Publication number Publication date
ATA222179A (de) 1982-11-15
AU524374B2 (en) 1982-09-16
AT371404B (de) 1983-06-27
BE875102A (fr) 1979-09-26
US4217327A (en) 1980-08-12
PH15093A (en) 1982-08-03
AU4543679A (en) 1979-10-04
JPS54160476A (en) 1979-12-19
CA1120680A (en) 1982-03-30
BR7901797A (pt) 1979-11-20
DE2912585A1 (de) 1979-10-04
GB2018187A (en) 1979-10-17
NZ189854A (en) 1982-09-07
NO790971L (no) 1979-09-28
SE7902690L (sv) 1979-09-28
FR2421044A1 (fr) 1979-10-26
NL7901911A (nl) 1979-10-01
GB2018187B (en) 1982-06-03
CH634776A5 (fr) 1983-02-28
DK122179A (da) 1979-09-28

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