ES280855A1 - Method of manufacture of multiwall paper bags and apparatus for carrying out the said method - Google Patents

Method of manufacture of multiwall paper bags and apparatus for carrying out the said method

Info

Publication number
ES280855A1
ES280855A1 ES0280855A ES280855A ES280855A1 ES 280855 A1 ES280855 A1 ES 280855A1 ES 0280855 A ES0280855 A ES 0280855A ES 280855 A ES280855 A ES 280855A ES 280855 A1 ES280855 A1 ES 280855A1
Authority
ES
Spain
Prior art keywords
welding
paper
longitudinal
waterproof
band
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
ES0280855A
Other languages
Spanish (es)
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.)
QUEVILLY EMBALLAGES
Original Assignee
QUEVILLY EMBALLAGES
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
Priority claimed from FR864018A external-priority patent/FR1309181A/en
Priority claimed from FR880372A external-priority patent/FR80817E/en
Application filed by QUEVILLY EMBALLAGES filed Critical QUEVILLY EMBALLAGES
Publication of ES280855A1 publication Critical patent/ES280855A1/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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/261—Folding sheets, blanks or webs involving transversely folding, i.e. along a line perpendicular to the direction of movement
    • 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
    • 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
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • 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
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined

Abstract

A machine for the manufacture of multi-layer paper sacks, comprising a series of rollers through which respectively arrive a band of waterproof and heat-sealable material intended to constitute the inner layer and several bands of paper intended to constitute the layers surrounding the latter, means for forming a longitudinal selvedge on one of the edges of the band of waterproof and heat-sealable material, means for effecting the gluing of the paper bands, means comprising a piece in the form of a ski spatula to initiate the formation of the tube, means for locally preheating the inner layer for longitudinal welding, means comprising a series of knurls for carrying out this welding and means for effecting the longitudinal bonding of the paper strips, characterized in that the knurls intended to carry out longitudinal welding of the inner layer are arranged so that they perform this welding on a marginal fraction s Only the width of the selvedge formed on one of the edges of the band of waterproof and heat-weldable material. (Machine-translation by Google Translate, not legally binding)
ES0280855A 1961-06-06 1962-09-17 Method of manufacture of multiwall paper bags and apparatus for carrying out the said method Expired ES280855A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR864018A FR1309181A (en) 1961-06-06 1961-06-06 Advanced multi-ply paper bag, and devices for its manufacture
FR880372A FR80817E (en) 1961-11-29 1961-11-29 Advanced multi-ply paper bag, and devices for its manufacture

Publications (1)

Publication Number Publication Date
ES280855A1 true ES280855A1 (en) 1962-12-16

Family

ID=26190916

Family Applications (2)

Application Number Title Priority Date Filing Date
ES277975A Expired ES277975A1 (en) 1961-06-06 1962-06-05 A procedure for the manufacture of sacks of several layers (Machine-translation by Google Translate, not legally binding)
ES0280855A Expired ES280855A1 (en) 1961-06-06 1962-09-17 Method of manufacture of multiwall paper bags and apparatus for carrying out the said method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES277975A Expired ES277975A1 (en) 1961-06-06 1962-06-05 A procedure for the manufacture of sacks of several layers (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
BE (1) BE618088A (en)
CH (1) CH387430A (en)
DK (1) DK107794C (en)
ES (2) ES277975A1 (en)
FI (1) FI40847B (en)
GB (1) GB980032A (en)
LU (1) LU41789A1 (en)
NO (1) NO117008B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802854C3 (en) 1968-10-12 1980-04-10 Wilhelmstal-Werke Gmbh Papiersackfabriken, 7590 Achern Multi-layer valve bag
DE1818047C3 (en) * 1968-10-12 1983-11-24 Wilhelmstal-Werke Gmbh Papiersackfabriken, 7590 Achern Process for the production of multi-layer valve bags with an inner bag
FI102527B (en) * 1994-12-05 1998-12-31 Korsnaes Ab Publ Bag
FI98292C (en) * 1994-12-05 1997-05-26 Upm Kymmene Oy Bottom Sack

Also Published As

Publication number Publication date
FI40847B (en) 1969-02-28
NO117008B (en) 1969-06-16
DK107794C (en) 1967-07-03
CH387430A (en) 1965-01-31
BE618088A (en) 1962-11-26
ES277975A1 (en) 1962-11-16
LU41789A1 (en) 1962-07-28
GB980032A (en) 1965-01-13

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