GB2012721A - Block-ended bags - Google Patents

Block-ended bags

Info

Publication number
GB2012721A
GB2012721A GB791650A GB7901650A GB2012721A GB 2012721 A GB2012721 A GB 2012721A GB 791650 A GB791650 A GB 791650A GB 7901650 A GB7901650 A GB 7901650A GB 2012721 A GB2012721 A GB 2012721A
Authority
GB
United Kingdom
Prior art keywords
bag
gussets
strips
turnovers
ended 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.)
Granted
Application number
GB791650A
Other versions
GB2012721B (en
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.)
KLEIN VERWALTUNGS und BETEILIG
Original Assignee
KLEIN VERWALTUNGS und BETEILIG
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 KLEIN VERWALTUNGS und BETEILIG filed Critical KLEIN VERWALTUNGS und BETEILIG
Publication of GB2012721A publication Critical patent/GB2012721A/en
Application granted granted Critical
Publication of GB2012721B publication Critical patent/GB2012721B/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
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms
    • 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
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • 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
    • B31B2170/00—Construction of flexible containers
    • B31B2170/30—Construction of flexible containers having corrugated or pleated walls

Abstract

Single-layer and multi-layer block ended bags are produced by a method comprising conveying a flat web 1 of foldable material, sticking separate strips 14 of foldable material to it at intervals, forming the web into a flat bag tube 8 with the strips 14 inside, cutting the tube into bag lengths adjacent the strips 14 and opening out the bottom of each bag length by folding its wall inwardly into gussets 19, 20 and turning the gussets outwardly to form lateral turnovers 21 which are glued in the areas shown by the cross-hatching and then folded inwardly along lines 23, 24 into overlapping relation upon themselves. Each strip 14 forms a reinforcing and sealing band 14'' which is incorporated in the gussets and the lateral turnovers and assists in sealing the bottom of the bag to prevent the escape of powdery material. Various modifications include double ended bags having valved upper ends for filling, constructed on the same principle. <IMAGE>
GB791650A 1978-01-18 1979-01-17 Single-layer or multi-layer block ended bags of foldable material and methods for their production Expired GB2012721B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782801963 DE2801963A1 (en) 1978-01-18 1978-01-18 SINGLE OR MULTI-LAYER CROSS-BOTTOM BAG OF FOLDABLE MATERIAL AND METHOD FOR THE PRODUCTION THEREOF

Publications (2)

Publication Number Publication Date
GB2012721A true GB2012721A (en) 1979-08-01
GB2012721B GB2012721B (en) 1982-04-28

Family

ID=6029720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB791650A Expired GB2012721B (en) 1978-01-18 1979-01-17 Single-layer or multi-layer block ended bags of foldable material and methods for their production

Country Status (5)

Country Link
BE (1) BE873510A (en)
DE (1) DE2801963A1 (en)
FR (1) FR2415053A1 (en)
GB (1) GB2012721B (en)
NL (1) NL191703C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811857A1 (en) * 1978-03-17 1979-09-27 Windmoeller & Hoelscher METHOD OF MANUFACTURING CROSS-FLOORED BAGS
DE3918741A1 (en) * 1989-06-08 1990-12-13 Honsel Karl Heinz Bag with side folds and square dust tight base - has insert sheet projecting into base closure flaps
DE10106289A1 (en) 2001-02-06 2002-08-29 Windmoeller & Hoelscher Process for making gusseted bags from plastic film
CN109159483B (en) * 2018-08-30 2024-04-12 浙江正威机械有限公司 Bottom opening device for plastic three-dimensional bag sheet

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1163232B (en) * 1964-02-13 Natronzellstoff Und Papierfab Cross-bottom valve bag made of paper or the like in a multi-layer design with an inner bottom sheet
GB824015A (en) * 1956-09-28 1959-11-25 Bemis Bros Bag Company Improvements in or relating to multi-ply paper bags and to methods of manufacturing the same
US3034699A (en) * 1959-09-21 1962-05-15 Interstate Bag Company Inc Shopping bag having reinforced top and bottom
DE1164313B (en) * 1961-03-04 1964-02-27 Juergen Klein Valve insert on a cross-bottom valve bag made of paper or a similar material
DE1228502B (en) * 1962-06-29 1966-11-10 Honsel Karl Heinz Method for producing a cross-bottom sack, preferably as a stacked sack with an inner latch
GB998034A (en) * 1962-06-29 1965-07-14 Honsel Karl Heinz Cross-bottom bag of synthetic plastic foil
GB1067881A (en) * 1962-11-09 1967-05-03 Union Carbide Corp Thermoplastic bag
DE1486382A1 (en) * 1963-08-21 1969-05-22 Psg Plastik Sack Gmbh Plastic bag
DE1297531B (en) * 1963-11-30 1969-06-12 Psg Plastik Sack Gmbh Plastic valve bag
GB1048095A (en) * 1964-02-10 1966-11-09 Equitable Paper Bag Co Reinforced shopping bag
US3291376A (en) * 1965-05-05 1966-12-13 Bemis Co Inc Bags

Also Published As

Publication number Publication date
NL191703B (en) 1995-12-01
GB2012721B (en) 1982-04-28
FR2415053A1 (en) 1979-08-17
NL7900407A (en) 1979-07-20
DE2801963A1 (en) 1979-07-19
NL191703C (en) 1996-04-02
DE2801963C2 (en) 1988-09-22
FR2415053B1 (en) 1984-02-10
BE873510A (en) 1979-05-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990116