GB771761A - A method of making paper and like bags formed with closure flaps - Google Patents

A method of making paper and like bags formed with closure flaps

Info

Publication number
GB771761A
GB771761A GB6838/54A GB683854A GB771761A GB 771761 A GB771761 A GB 771761A GB 6838/54 A GB6838/54 A GB 6838/54A GB 683854 A GB683854 A GB 683854A GB 771761 A GB771761 A GB 771761A
Authority
GB
United Kingdom
Prior art keywords
web
adhesive
bags
bag
closure flap
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
Application number
GB6838/54A
Inventor
John William Randall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
John Dickinson and Co Ltd
Original Assignee
John Dickinson and Co 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 John Dickinson and Co Ltd filed Critical John Dickinson and Co Ltd
Priority to GB6838/54A priority Critical patent/GB771761A/en
Publication of GB771761A publication Critical patent/GB771761A/en
Expired legal-status Critical Current

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
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom 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

Landscapes

  • Making Paper Articles (AREA)
  • Bag Frames (AREA)

Abstract

771,761. Making bags. DICKINSON & CO., Ltd., J. June 8; 1955 [March 9, 1954], No. 6838/54. Class 94(2). A method of making bags consisting of two separate walls secured by adhesive and having a double thickness closure flap comprises making the mouth slit in one bag wall before applying it to the other, adhesive having been previously applied to unite all four side edges of the bag and form above the slit, the closure flap. The method may be used to make bags as described with reference to Figs. 1-7a of Specification 754,449. In producing the bags as shown in Fig. 4 of that Specification a web 10 has the edge-joining adhesive areas applied by means 12, and a cutter 16 forms the slits 17. A second web 18 is applied to the web 10 by rolls 20 and the combined webs pass through folding means 22, rendered inoperative, to an adhesive applicator 23 applying stripes 24, 25 to the web 10, through notching means 26 for removing sectors at each end of the transverse adhesive areas to shape the top and bottom closure flaps, and through folding means 28 which double over the longitudinal edges of the webs onto the stripes 24, 25 to produce the side seams. An applicator 30 applies areas 31 of self-sealing adhesive to the closure flap and adjacent bag wall, and the webs pass through a dryer 32 to a cutter 35 which separates the bags. An adhesive stripe 38 is applied by an applicator 36, and the bottom closure flap 37 folded onto it by means 39. The completed bags are conveyed to stacking means 9. In forming a further type of bag, Fig. 2, the apparatus is modified in that the means 22 are rendered operative to fold the edges of the wider web 10 over those of the narrower web 18, and the devices 23, 26, 28 are rendered inoperative. One web, preferably 18, may be transparent and the other opaque or semi-opaque. The web 10 may be slit into bag lengths before being applied to the web 18 or may be replaced by a stack of separate bag blanks. If the material of the web 10 is resistant to the application of' self-sealing adhesive, a preliminary coating of gum may be applied by means 5 and dried by a dryer 6 prior to the application of the adhesive areas 31.
GB6838/54A 1954-03-09 1954-03-09 A method of making paper and like bags formed with closure flaps Expired GB771761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6838/54A GB771761A (en) 1954-03-09 1954-03-09 A method of making paper and like bags formed with closure flaps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6838/54A GB771761A (en) 1954-03-09 1954-03-09 A method of making paper and like bags formed with closure flaps

Publications (1)

Publication Number Publication Date
GB771761A true GB771761A (en) 1957-04-03

Family

ID=9821677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6838/54A Expired GB771761A (en) 1954-03-09 1954-03-09 A method of making paper and like bags formed with closure flaps

Country Status (1)

Country Link
GB (1) GB771761A (en)

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