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 therefromInfo
- 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
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)
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 (fr) |
JP (1) | JPS54160476A (fr) |
AT (1) | AT371404B (fr) |
AU (1) | AU524374B2 (fr) |
BE (1) | BE875102A (fr) |
BR (1) | BR7901797A (fr) |
CA (1) | CA1120680A (fr) |
CH (1) | CH634776A5 (fr) |
DE (1) | DE2912585A1 (fr) |
DK (1) | DK122179A (fr) |
FR (1) | FR2421044A1 (fr) |
GB (1) | GB2018187B (fr) |
NL (1) | NL7901911A (fr) |
NO (1) | NO790971L (fr) |
NZ (1) | NZ189854A (fr) |
PH (1) | PH15093A (fr) |
SE (1) | SE7902690L (fr) |
ZA (1) | ZA791116B (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6635334B1 (en) * | 2000-08-08 | 2003-10-21 | 3M Innovative Properties Company | Cloth-like polymeric films |
DK1795263T4 (da) | 2001-03-09 | 2017-11-13 | Gen Probe Inc | Fremgangsmåde til fjernelse af en fluid fra en beholder omfattende en gennembrydelig hætte |
US6838040B2 (en) * | 2001-12-28 | 2005-01-04 | Kimberly-Clark Worldwide, Inc. | Method for weakening a portion of a web |
US20030130641A1 (en) * | 2001-12-28 | 2003-07-10 | Richlen Sandra A. | Absorbent garment having a weakened region |
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 (fr) * | 2006-04-26 | 2007-10-31 | Nordenia Deutschland Halle GmbH Werk Steinfeld | Procédé pour la fabrication d'un film pour emballages déchirables |
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 |
CN106103304A (zh) * | 2014-03-20 | 2016-11-09 | 宝洁公司 | 具有润湿指示标记的一次性吸收制品的湿度稳定的包装件 |
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)
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 |
-
1978
- 1978-03-27 US US05/890,327 patent/US4217327A/en not_active Expired - Lifetime
-
1979
- 1979-03-08 NZ NZ189854A patent/NZ189854A/xx unknown
- 1979-03-09 ZA ZA791116A patent/ZA791116B/xx unknown
- 1979-03-09 NL NL7901911A patent/NL7901911A/xx not_active Application Discontinuation
- 1979-03-13 GB GB7908866A patent/GB2018187B/en not_active Expired
- 1979-03-22 NO NO790971A patent/NO790971L/no unknown
- 1979-03-23 BR BR7901797A patent/BR7901797A/pt unknown
- 1979-03-26 SE SE7902690A patent/SE7902690L/ not_active Application Discontinuation
- 1979-03-26 AT AT0222179A patent/AT371404B/de not_active IP Right Cessation
- 1979-03-26 DK DK122179A patent/DK122179A/da not_active Application Discontinuation
- 1979-03-26 CA CA000324115A patent/CA1120680A/fr not_active Expired
- 1979-03-26 BE BE0/194222A patent/BE875102A/fr not_active IP Right Cessation
- 1979-03-26 JP JP3540179A patent/JPS54160476A/ja active Pending
- 1979-03-26 FR FR7907534A patent/FR2421044A1/fr active Pending
- 1979-03-26 CH CH276679A patent/CH634776A5/fr not_active IP Right Cessation
- 1979-03-27 DE DE19792912585 patent/DE2912585A1/de not_active Withdrawn
- 1979-03-27 AU AU45436/79A patent/AU524374B2/en not_active Ceased
- 1979-03-27 PH PH22327A patent/PH15093A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2421044A1 (fr) | 1979-10-26 |
GB2018187A (en) | 1979-10-17 |
SE7902690L (sv) | 1979-09-28 |
US4217327A (en) | 1980-08-12 |
GB2018187B (en) | 1982-06-03 |
JPS54160476A (en) | 1979-12-19 |
DE2912585A1 (de) | 1979-10-04 |
BE875102A (fr) | 1979-09-26 |
PH15093A (en) | 1982-08-03 |
AU4543679A (en) | 1979-10-04 |
CA1120680A (fr) | 1982-03-30 |
AU524374B2 (en) | 1982-09-16 |
NL7901911A (nl) | 1979-10-01 |
BR7901797A (pt) | 1979-11-20 |
CH634776A5 (fr) | 1983-02-28 |
DK122179A (da) | 1979-09-28 |
AT371404B (de) | 1983-06-27 |
NO790971L (no) | 1979-09-28 |
NZ189854A (en) | 1982-09-07 |
ATA222179A (de) | 1982-11-15 |
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