GB1193676A - Making Crossed-end Bags - Google Patents

Making Crossed-end Bags

Info

Publication number
GB1193676A
GB1193676A GB34869/67A GB3486967A GB1193676A GB 1193676 A GB1193676 A GB 1193676A GB 34869/67 A GB34869/67 A GB 34869/67A GB 3486967 A GB3486967 A GB 3486967A GB 1193676 A GB1193676 A GB 1193676A
Authority
GB
United Kingdom
Prior art keywords
adhesive
blank
web
perforations
cut
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
GB34869/67A
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of GB1193676A publication Critical patent/GB1193676A/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
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • 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
    • 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
    • B31B2150/0012—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing in 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
    • 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
    • B31B2160/10—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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

Abstract

1,193,676. Block-bottomed bags. WINDMÍLLER & HÍLSCHER. 28 July, 1967 [3 Aug., 1966], No. 34869/67. Heading B8K. [Also in Division B5] A tube blank I (Fig. 1) for a crossed-bottom bag secured by a dry pressure-sensitive adhesive which sticks only to itself, is cut at the ends to expose parts of the inside surfaces of the end flaps to receive the adhesive. In the blank illustrated the lower wall is extended at 3, and the upper wall at 11, while the opposed walls at each end are correspondingly recessed. An adhesive with a volatile solvent is then applied at the hatched areas on both sides of the blank and is allowed to dry before the blanks are stacked. The blank ends are subse quently opened to diamond form, as shown in Fig. 3, a valve sleeve 18, coated with the same adhesive, is secured in place, and the bottoms closed in the usual way. This results in the outer exposed surfaces having a coating of adhesive which can either receive a cover sheet or which may be inactivated, for example by talcum powder or by a solution of water and alcohol with a wetting agent. Alternatively, the adhesive may be printed in a pattern which leaves the exposed surfaces of the bottom free. A suitable adhesive for polyolefin sheeting is a mixture of isocyanate modified polyesters with free hydroxyl groups and isocyanate resins in a solvent. The sheeting may be first subjected to a corona discharge. The transverse cuts by which the bag blank is separated from a web are preferably first formed as perforations, those parts 9, 10 (Fig. I) which coincide in the two walls being subsequently cut while the non-coincident perforations 11, 12 are pulled apart by accelerating rollers. Where the blanks are cut from extruded lie-flat tubing, the perforations are made by apparatus including a carriage floating inside an opened portion of the tubing. Where the blank is cut from tubed flat web, the perforations may be made before the web is tubed. The seam in the tubed web may be by a heatactivated adhesive. The web may be multi-ply.
GB34869/67A 1966-08-03 1967-07-28 Making Crossed-end Bags Expired GB1193676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0042147 1966-08-03

Publications (1)

Publication Number Publication Date
GB1193676A true GB1193676A (en) 1970-06-03

Family

ID=7603110

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34869/67A Expired GB1193676A (en) 1966-08-03 1967-07-28 Making Crossed-end Bags

Country Status (1)

Country Link
GB (1) GB1193676A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110435227A (en) * 2018-05-02 2019-11-12 上海洲泰轻工机械制造有限公司 A kind of dog-ear method and apparatus of packaging bag side organ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110435227A (en) * 2018-05-02 2019-11-12 上海洲泰轻工机械制造有限公司 A kind of dog-ear method and apparatus of packaging bag side organ

Also Published As

Publication number Publication date
DE1511034B1 (en) 1972-10-05

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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