Method and device for producing a packaging bag from flexible film material and stiffened partial region and packaging bag

Patent metadata

Field	Value
Publication number	US-9085392-B2
Application number	US-201013509013-A
Country	US
Kind code	B2
Filing date	Oct 5, 2010
Priority date	Nov 16, 2009
Publication date	Jul 21, 2015
Grant date	Jul 21, 2015

Abstract

The invention relates to a method for producing a packaging bag from a flexible film material ( 2 ) comprising the following steps: feeding of the flexible film material ( 2 ); adding an additional material ( 7 ) to the flexible film material ( 2 ) and producing at least one stiffened partial region ( 6 ) from the additional material ( 7 ), wherein the additional material ( 7 ) is hardened and forms the stiffened partial region ( 6 ). The invention further relates to a device for producing a packaging bag, comprising: a film feeding device ( 10 ) for feeding flexible film material ( 2 ) and an additional material adding device ( 11 ) for adding an additional material ( 7 ). The invention further relates to a packaging bag ( 5 ) comprising: a first transverse seal seam ( 14 ), a second transverse seal seam ( 15 ), a flexible partial region ( 16 ) and at least one stiffened partial region ( 6 ), wherein the flexible partial region ( 16 ) is produced from the film material ( 2 ) and the stiffened partial region ( 6 ) is produced from an additional material ( 7 ) which was added and hardened to stiffen the packaging bag.

First claim

What is claimed is:

1. A method for producing a packaging bag from a flexible film material ( 2 ), the method comprising:
a) feeding the flexible film material ( 2 ) across a forming shoulder ( 8 ) that shapes the flexible film material ( 2 );
b) spraying an additional material ( 7 ) onto the flexible film material ( 2 ) through a plurality of openings ( 13 ) that are in the forming shoulder ( 8 ), and
c) producing at least one stiffened partial region ( 6 ) from the additional material ( 7 ), wherein the additional material ( 7 ) is hardened and forms the stiffened partial region ( 6 ).

2. The method as claimed in claim 1 , characterized in that the additional material ( 7 ) is added to at least one of an inner and an outer face of the film material ( 2 ).

3. The method as claimed in claim 1 , characterized in that the stiffened partial region ( 6 ) has at least one of a planar shape, a linear shape, and a lattice structure.

4. The method as claimed in claim 1 , characterized in that the additional material ( 7 ) is hardened by heat or UV light or electron beams or by contact with the ambient air.

5. The method as claimed in claim 1 , characterized in that the flexible film material ( 2 ) and the additional material ( 7 ) have the same material composition.

6. The method as claimed in claim 1 , characterized in that the additional material ( 7 ) is added in a region of a forming shoulder ( 8 ) or in a region of a forming tube ( 9 ).

7. The method as claimed in claim 1 , characterized in that the flexible film material ( 2 ) and the additional material ( 7 ) have a different material composition.

Assignees

• Reichert Manfred
• Wilke Bernd
• Wieduwilt Ulrich
• Ansinn Detlev D
• Bosch Gmbh Robert

Inventors

• Reichert Manfred
• Wilke Bernd
• Wieduwilt Ulrich
• Ansinn Detlev D

Classifications

• B65D75/52

  Details · CPC title

• B65B61/00

  Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages · CPC title

• B65D33/02 Primary

  Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames {(B65D33/007 takes precedence)} · CPC title

• B65B9/2056

  Machines for packages of special type or form · CPC title

• B65B9/207

  the web advancing continuously (B65B9/22 takes precedence) · CPC title