IE33546L - Plastics bags manufacture - Google Patents

Plastics bags manufacture

Info

Publication number
IE33546L
IE33546L IE691130A IE113069A IE33546L IE 33546 L IE33546 L IE 33546L IE 691130 A IE691130 A IE 691130A IE 113069 A IE113069 A IE 113069A IE 33546 L IE33546 L IE 33546L
Authority
IE
Ireland
Prior art keywords
web
seals
wire
pleat
bags
Prior art date
Application number
IE691130A
Other versions
IE33546B1 (en
Original Assignee
British Visqueen Ltd
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 British Visqueen Ltd filed Critical British Visqueen Ltd
Publication of IE33546L publication Critical patent/IE33546L/en
Publication of IE33546B1 publication Critical patent/IE33546B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically

Landscapes

  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Bag Frames (AREA)

Abstract

1,273,156. Gusset opener; seaming non-metallic sheet material. BRITISH VISQUEEN Ltd. 8 Aug., 1969 [23 Aug., 1968], No. 40473/68. Headings B5D and B5K. [Also in Division B8] A plough or gusset opener comprising a wire 8 and a part 6 of diamond cross-section (Fig. 2) is provided to separate opposed seals e.g. 5a, 5b that may have inadvertantly become sealed together e.g. 5c during their formation e.g. when forming block-bottomed bags. As shown, a folded plastics web 1 having a pleat 2 coated with a yeat-seal inhibitor on its outer surface e.g. printing ink passes to a first heat-sealing station where double V-shaped seals 5, e.g. an example of such a seal being 5a, 5d, are formed to extend partly across the pleat 2 to leave a small separation adjacent the pleat fold 9 wherein the wire 8 may lie. As the web 1 moves intermittently towards a second station providing transverse seals 13, the part 6 progressively separates the opposed arms e.g. 5a, 5b of the V-shaped seals, e.g. 5a, 5d. The wire 8 which is anchored to a support 10, passes through tubing (7, Fig. 2) brazed into a groove along the inner edge of the part 6 to be anchored to a support 11 via a tension adjustor 12. The web 1 may comprise side-gussetted, lay-flat tubing which may be cut longitudinally to form two rows of bag or transversely midway between the transverse seals 13 to form half-sized bags. The bags may be only partly severed from each other. The web may comprise films of polythene, polypropylene copolymers of ethylene or propylene with other olefines or unsaturated monomers, polyethylene terephthalate or vinylidene chloride copolymers. The film may bear a heat-seal coating on its inner surface and be used for packaging cut loaves. [GB1273156A]
IE1130/69A 1968-08-23 1969-08-11 Plastics bags manufacture IE33546B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40473/68A GB1273156A (en) 1968-08-23 1968-08-23 Plastics bags manufacture

Publications (2)

Publication Number Publication Date
IE33546L true IE33546L (en) 1970-02-23
IE33546B1 IE33546B1 (en) 1974-08-07

Family

ID=10415069

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1130/69A IE33546B1 (en) 1968-08-23 1969-08-11 Plastics bags manufacture

Country Status (7)

Country Link
JP (1) JPS4826476B1 (en)
CA (1) CA925417A (en)
DE (1) DE1942901A1 (en)
DK (1) DK124932B (en)
ES (1) ES370792A1 (en)
GB (1) GB1273156A (en)
IE (1) IE33546B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116141750A (en) * 2021-09-29 2023-05-23 上海洲泰轻工机械制造有限公司 A kind of packaging bag preparation method
CN114571796B (en) * 2022-03-17 2024-04-05 温州钱峰科技有限公司 Full-automatic intelligent looping all-in-one machine

Also Published As

Publication number Publication date
CA925417A (en) 1973-05-01
IE33546B1 (en) 1974-08-07
JPS4826476B1 (en) 1973-08-10
DK124932B (en) 1972-12-11
DE1942901A1 (en) 1970-08-13
ES370792A1 (en) 1971-12-01
GB1273156A (en) 1972-05-03

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