IE790738L - Flat-bottom bag - Google Patents

Flat-bottom bag

Info

Publication number
IE790738L
IE790738L IE790738A IE73879A IE790738L IE 790738 L IE790738 L IE 790738L IE 790738 A IE790738 A IE 790738A IE 73879 A IE73879 A IE 73879A IE 790738 L IE790738 L IE 790738L
Authority
IE
Ireland
Prior art keywords
gussets
gusset
bag
providing
fold lines
Prior art date
Application number
IE790738A
Other versions
IE48194B1 (en
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of IE790738L publication Critical patent/IE790738L/en
Publication of IE48194B1 publication Critical patent/IE48194B1/en

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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/52—Folding sheets, blanks or webs by reciprocating or oscillating members other than plungers and dies, e.g. by fingers
    • 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
    • B31B2150/0016—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom made from already formed 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
    • 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

Abstract

A method of forming a flat bottom bag (Figure 8) (a) providing a length of flattened, heat sealable tubular material having front and back walls (11,12) united along each longitudinal edge by a gusset (13,14), said length having been heat sealed transversely to provide a bag having a closed bottom (15) and an open mouth; (b) clamping the front and back walls in a central longitudinal region (16) thereof; (c) flaring the gussets (13,14) until portions of the transverse heat seal (5) common to the gussets coincide with the gusset fold lines (13A,14A), and (d) maintaining the fold lines and heat seal portions in juxtaposition while returning the gussets to the non-flared position thus providing a gusset tuck (23) disposed on each corner of said closed bottom. <IMAGE> [GB2016999A]
IE738/79A 1978-03-24 1979-08-08 Method for producing a flat bottom thermoplastic bag IE48194B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88991578A 1978-03-24 1978-03-24

Publications (2)

Publication Number Publication Date
IE790738L true IE790738L (en) 1979-09-24
IE48194B1 IE48194B1 (en) 1984-10-31

Family

ID=25395986

Family Applications (1)

Application Number Title Priority Date Filing Date
IE738/79A IE48194B1 (en) 1978-03-24 1979-08-08 Method for producing a flat bottom thermoplastic bag

Country Status (13)

Country Link
AT (1) AT380431B (en)
AU (1) AU532444B2 (en)
BE (1) BE875080A (en)
CA (1) CA1114215A (en)
CH (1) CH628283A5 (en)
DE (1) DE2910517A1 (en)
FR (1) FR2420423B1 (en)
GB (1) GB2016999B (en)
IE (1) IE48194B1 (en)
IT (1) IT1114748B (en)
MX (1) MX151561A (en)
NL (1) NL7902314A (en)
SE (1) SE436180B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582552A (en) * 1983-01-18 1986-04-15 James Hardie Containers Limited Carton forming apparatus
DE3741210A1 (en) * 1987-12-04 1989-06-15 Detlef M Kuehnert METHOD FOR THE PRODUCTION OF SHRINK HOODS, DEVICE FOR CARRYING OUT THEREOF AND SHRINK HOOD
US8142340B2 (en) * 2002-10-24 2012-03-27 Lionel Nicholas Mantzivis Bag and a method of forming a bag
CN109334105B (en) * 2018-08-30 2024-04-12 浙江正威机械有限公司 Automatic plastic three-dimensional bag making system with patch entrained at square bottom

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE144506C (en) * 1900-01-01
GB684890A (en) * 1950-02-09 1952-12-24 Robinson E S & A Canada Improvements in or relating to methods of and apparatus for forming a paper or like bag
US3094905A (en) * 1960-07-08 1963-06-25 Robert L Haslacher Process for making bags
US3606822A (en) * 1970-01-12 1971-09-21 Nat Distillers Chem Corp Method and apparatus for producing a flat-bottom plastic bag
US3799042A (en) * 1972-04-14 1974-03-26 Nat Distillers Chem Corp Flat-bottom plastic bags and method for the production thereof
GB1470653A (en) * 1973-05-01 1977-04-21 Nat Petrochemicals Corp Grocery sack process and machine
US3886850A (en) * 1973-05-23 1975-06-03 Midland Ross Corp Method of forming flat bottoms on bags of creasable material

Also Published As

Publication number Publication date
IT7948463A0 (en) 1979-03-23
BE875080A (en) 1979-09-24
FR2420423B1 (en) 1986-03-21
GB2016999A (en) 1979-10-03
AT380431B (en) 1986-05-26
IT1114748B (en) 1986-01-27
CA1114215A (en) 1981-12-15
AU4537279A (en) 1979-09-27
AU532444B2 (en) 1983-09-29
SE7902638L (en) 1979-09-25
IE48194B1 (en) 1984-10-31
CH628283A5 (en) 1982-02-26
DE2910517A1 (en) 1979-09-27
MX151561A (en) 1984-12-14
NL7902314A (en) 1979-09-26
FR2420423A1 (en) 1979-10-19
GB2016999B (en) 1982-08-04
SE436180B (en) 1984-11-19
ATA218279A (en) 1985-10-15

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