GB488743A - Improvements in and relating to transparent foils - Google Patents
Improvements in and relating to transparent foilsInfo
- Publication number
- GB488743A GB488743A GB992837A GB992837A GB488743A GB 488743 A GB488743 A GB 488743A GB 992837 A GB992837 A GB 992837A GB 992837 A GB992837 A GB 992837A GB 488743 A GB488743 A GB 488743A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pict
- tear
- incision
- rows
- foils
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5827—Tear-lines provided in a wall portion
- B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
- B65D75/5844—Tear-lines provided in a wall portion for tearing out a portion of the wall the portion of the wall being a narrow strip, e.g. between lines of weakness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials For Medical Uses (AREA)
- Nonwoven Fabrics (AREA)
Abstract
<PICT:0488743/IV/1> <PICT:0488743/IV/2> <PICT:0488743/IV/3> In order to facilitate the separation of transparent foils of cellulose hydrate and the like, the material is modified by slitting, punching or weakening to form a row of areas so arranged that a tear will be directed from one area to another. In the form shown in Fig. 1, two rows of angular incisions d are arranged with the points towards the openings of the next incision. A tongue m is used to start the tear, which proceeds as shown at t from one incision d1 to the next d11. In another form, Fig. 3, rows of triangular apertures e are arranged below the tongue m and in Fig. 5 double rows of staggered incisions f, g, h, i, direct the tear t as shown. Access of air through the incision may be prevented by applying a backing sheet, which may be of the same material as the foil. The foils may be used as backing for rolls of cotton wool for medical purposes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB992837A GB488743A (en) | 1937-04-07 | 1937-04-07 | Improvements in and relating to transparent foils |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB992837A GB488743A (en) | 1937-04-07 | 1937-04-07 | Improvements in and relating to transparent foils |
Publications (1)
Publication Number | Publication Date |
---|---|
GB488743A true GB488743A (en) | 1938-07-13 |
Family
ID=9881362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB992837A Expired GB488743A (en) | 1937-04-07 | 1937-04-07 | Improvements in and relating to transparent foils |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB488743A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2546698A (en) * | 1943-10-20 | 1951-03-27 | Nicolic Charles | Sheet material with weakened tearing line |
US4041202A (en) * | 1970-09-15 | 1977-08-09 | Williams Robert E | Strippable tape |
EP0696542A1 (en) * | 1994-08-12 | 1996-02-14 | Viskase Corporation | Perforated packaging for food casing |
WO2009034377A1 (en) * | 2007-09-14 | 2009-03-19 | Innovia Films Limited | Films. packaging and methods for making them |
-
1937
- 1937-04-07 GB GB992837A patent/GB488743A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2546698A (en) * | 1943-10-20 | 1951-03-27 | Nicolic Charles | Sheet material with weakened tearing line |
US4041202A (en) * | 1970-09-15 | 1977-08-09 | Williams Robert E | Strippable tape |
EP0696542A1 (en) * | 1994-08-12 | 1996-02-14 | Viskase Corporation | Perforated packaging for food casing |
WO2009034377A1 (en) * | 2007-09-14 | 2009-03-19 | Innovia Films Limited | Films. packaging and methods for making them |
US8342389B2 (en) | 2007-09-14 | 2013-01-01 | Innovia Films, Ltd. | Films, packaging and methods for making them |
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