GB1052071A - - Google Patents

Info

Publication number
GB1052071A
GB1052071A GB1052071DA GB1052071A GB 1052071 A GB1052071 A GB 1052071A GB 1052071D A GB1052071D A GB 1052071DA GB 1052071 A GB1052071 A GB 1052071A
Authority
GB
United Kingdom
Prior art keywords
tubing
rolls
severed
belts
film
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
Publication date
Publication of GB1052071A publication Critical patent/GB1052071A/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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/644—Making seals parallel to the direction of movement, i.e. longitudinal sealing
    • 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
    • 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

Landscapes

  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)

Abstract

1,052,071. Makings bags from thermoplastic resin film; seaming non-metallic sheet material. TOYO RAYON KABUSHIKI KAISHA. April 17, 1964 [April 22, 1963; May 31, 1963; Aug. 8, 1963; Sept. 25, 1963; Sept. 28, 1963; Nov. 8, 1963], No. 16087/64. Headings B5D and B5K. [Also in Division B8] One or more sheets a, a<SP>1</SP> (Fig. 1) of thermoplastic synthetic resin film are fed by rolls 9 between heating means 6, 6<SP>1</SP> (Fig. 2, not shown) which fuse together the edges while adjacent portions of the films are cooled at 8, 8<SP>1</SP>. The tubing so formed is then severed and the severed edge heat sealed to form a bag. In the form shown the heating means 6, 6<SP>1</SP> are preferably in the form of rectangularly or arcuately grooved heated blocks positioned obliquely to the direction of the film. Alternatively ribbon like nichrome may be used, the tension of which is adjustable. The devices 8, 8<SP>1</SP>, which are adjustably positioned with respect to the films, may have fins for radiating heat or may have a cooling liquid circulating in them. Preferably further cooling devices 7, 7<SP>1</SP> are incorporated to cool the edges of the film. Either solid or cold air cooling means may be used but preferably the edge e of the film is brought into contact with porous material to which cold water has been fed. After cooling the tubing is preferably severed, whilst held under tension by rolls 11 rotating more quickly than rolls 9, by a rotary cutter 10. A pair of reciprocable idling rolls 13 are then closed together to draw the tubing downwards between belts 12 and belts 61 towards a stop plate 23. When the base of the tube touches the stop plate, driving rolls 15 move apart to release the tubing which is then carried at right angles to its previous direction by fabric belts 28, 29 and cooled metallic belts 30 to a bottom sealing means 31 and cooling means 32. Alternatively the tubing may be severed by cutters 72, 72<SP>1</SP> (Fig. 17, not shown) and the severed edge sealed by a heater 75 pivoted at 73.
GB1052071D Expired GB1052071A (en)

Publications (1)

Publication Number Publication Date
GB1052071A true GB1052071A (en) 1900-01-01

Family

ID=1756772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1052071D Expired GB1052071A (en)

Country Status (1)

Country Link
GB (1) GB1052071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942824B1 (en) * 1996-11-26 2003-02-12 Molins Plc Method and apparatus for obtaining individual web sections from a web of sheet material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942824B1 (en) * 1996-11-26 2003-02-12 Molins Plc Method and apparatus for obtaining individual web sections from a web of sheet material

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