GB1369866A - Methods of making bags - Google Patents

Methods of making bags

Info

Publication number
GB1369866A
GB1369866A GB4602571A GB4602571A GB1369866A GB 1369866 A GB1369866 A GB 1369866A GB 4602571 A GB4602571 A GB 4602571A GB 4602571 A GB4602571 A GB 4602571A GB 1369866 A GB1369866 A GB 1369866A
Authority
GB
United Kingdom
Prior art keywords
block
bag
gusset
seams
flaps
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
GB4602571A
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.)
Industriele Onderneming Wavin NV
Wavin BV
Original Assignee
Industriele Onderneming Wavin NV
Wavin BV
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 Industriele Onderneming Wavin NV, Wavin BV filed Critical Industriele Onderneming Wavin NV
Publication of GB1369866A publication Critical patent/GB1369866A/en
Expired legal-status Critical Current

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
    • B65D31/00—Bags or like containers made of paper and having 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)

Abstract

1369866 Block bottomed bags INDUSTRIELE ONDERNEMING WAVIN NV 4 Oct 1971 [2 Oct 1970] 46025/71 Heading B8K The block-bottom-shaped top of a bag is provided with upstanding flaps in which handle holes may be formed. As shown, a bag is formed from a sheet having a top gusset by joining the side edges and all four edges of the gusset by seams 8, 8<SP>1</SP>. The block bottom is then flattened and two transverse seams 21, 22 formed to provide the upstanding flaps 29, 29<SP>1</SP> having handle cut-outs 28, 28<SP>1</SP>. In a modification (Figs. 12 and 13, not shown), the bag is formed by sealing the sheet edges together and sealing the gusset edges in pairs. The transverse seams (30, 30<SP>1</SP>) are then formed across the flattened bottom forming upstanding flaps which extend around the entire periphery of the block bottom. Alternatively, triangular end parts of the gusset are folded over before the transverse seams are formed to provide flaps 29, 29<SP>1</SP> as shown in Fig. 9. Reinforcing seams may be provided along the lines 23, 24. The bottom of the bag may be gathered to close it after filling, or may also have a block-bottomed construction, either with or without upstanding flaps, in which case a filling valve is incorporated into one end of one of the block bottoms.
GB4602571A 1970-10-02 1971-10-04 Methods of making bags Expired GB1369866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7014547A NL7014547A (en) 1970-10-02 1970-10-02

Publications (1)

Publication Number Publication Date
GB1369866A true GB1369866A (en) 1974-10-09

Family

ID=19811217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4602571A Expired GB1369866A (en) 1970-10-02 1971-10-04 Methods of making bags

Country Status (2)

Country Link
GB (1) GB1369866A (en)
NL (1) NL7014547A (en)

Also Published As

Publication number Publication date
NL7014547A (en) 1971-12-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees