GB1086023A - Making bags with enclosed stiffener at top - Google Patents

Making bags with enclosed stiffener at top

Info

Publication number
GB1086023A
GB1086023A GB35518/64A GB3551864A GB1086023A GB 1086023 A GB1086023 A GB 1086023A GB 35518/64 A GB35518/64 A GB 35518/64A GB 3551864 A GB3551864 A GB 3551864A GB 1086023 A GB1086023 A GB 1086023A
Authority
GB
United Kingdom
Prior art keywords
web
bag
reinforcing strip
adhesive
bags
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
GB35518/64A
Inventor
Joseph Speth Davis
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.)
Equitable Paper Bag Co Inc
Original Assignee
Equitable Paper Bag Co Inc
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 Equitable Paper Bag Co Inc filed Critical Equitable Paper Bag Co Inc
Priority to GB35518/64A priority Critical patent/GB1086023A/en
Publication of GB1086023A publication Critical patent/GB1086023A/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
    • B31B70/008—Stiffening or reinforcing
    • 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
    • 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
    • B31B70/812—Applying patches, strips or strings on sheets or webs
    • B31B70/8123—Applying strips

Landscapes

  • Making Paper Articles (AREA)

Abstract

1,086,023. Enclosing Stiffener in bags. EQUITABLE PAPER BAG CO. Inc. Aug. 31, 1964, No. 35518/64. Heading B5D. A band of adhesive secures a cardboard reinforcement 24 (Fig. 7) within a top compartment formed in a plastics bag by folding a web about the cardboard reinforcement and sealing it at 41. The bags are subsequently sealed and severed along lines 188. A line of weakness may be provided in the seal 41, and after filling and sealing the flap 21 may be cut off. In the apparatus described (Fig. 1) two sets of bags are made simultaneously from separate webs 15 and 15<SP>1</SP>. Each web may be provided with a coloured or opaque portion 198 which covers both sides of the reinforcing strip. The reinforcing strip 24, which may be cardboard, is fed into the longitudinal fold formed in the web 15 by rollers 32, 33. A guide 36 (see Fig. 1a) may be provided to hold the reinforcing strip against the fold in the web. Perforating wheels 40 provide a line of weakness in the bag material adjacent the edge of the reinforcing strip. Adhesive is applied to one or both sides of the strip 24 by nozzles 46, 49 supplied from a tank 52. The adhesive may be applied in a single line of sufficient thickness to spread out over the whole of the reinforcing strip when the surface of the bag is pressed against it. Electrically heated sealers 54 then secure the two bag walls together around the line of perforations 41 and feed rollers 60 flatten the web against the adhesive which has been pro. vided on the reinforcing strip. Alternatively rollers may be provided to flatten the web against the adhesive before it passes the sealers 54. The web then passes to a slack accumulator 58 so that the continuous movement of the web may be changed to an intermittent movement. The web is then moved intermittently by rollers 90 through a device 108 where holes 200 are punched in the reinforcing strip. A heated element 132 seals and severs across the non-reinforced portion of the bag and simultaneously a blade 146 cuts through the reinforced portion. A small portion of the bag in the region 41 may be left unsevered to assist in the delivery of the bag through the machine. After the bags have been fed on to a conveyer 164 they are pulled apart by a device 168.
GB35518/64A 1964-08-31 1964-08-31 Making bags with enclosed stiffener at top Expired GB1086023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB35518/64A GB1086023A (en) 1964-08-31 1964-08-31 Making bags with enclosed stiffener at top

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35518/64A GB1086023A (en) 1964-08-31 1964-08-31 Making bags with enclosed stiffener at top

Publications (1)

Publication Number Publication Date
GB1086023A true GB1086023A (en) 1967-10-04

Family

ID=10378642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35518/64A Expired GB1086023A (en) 1964-08-31 1964-08-31 Making bags with enclosed stiffener at top

Country Status (1)

Country Link
GB (1) GB1086023A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212476A (en) * 1987-11-19 1989-07-26 Stonehaven Packaging Products Bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212476A (en) * 1987-11-19 1989-07-26 Stonehaven Packaging Products Bag

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