Method for fastening wrapping sheets in pulp-bale packaging, and fastening element

Patent metadata

Field	Value
Publication number	US-9394091-B2
Application number	US-201113813747-A
Country	US
Kind code	B2
Filing date	Jul 20, 2011
Priority date	Aug 2, 2010
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A method for fastening wrapping sheets made of paper or cellulose in pulp-bale packaging, wherein a pulp bale is wrapped using a single-piece or two-part wrapping sheet made of paper or using a lower sheet and upper sheet made of cellulose. The method is characterized in that, at the location of overlap of the two paper or cellulose sheets, or at the end fold of the wrapping sheets made of cellulose or paper, one or more clip(s), including a decomposable material, not leaving behind any harmful components, as bale processing continues, is introduced into the bale. This makes it possible to avoid a costly binding machine or paper-strapping machine, and does away with the outlay required for disposing of the wire by the end user. A fastening device which includes a decomposable material which does not leave behind any harmful components, as bale processing continues is also disclosed.

First claim

The invention claimed is:

1. A method for fastening wrapping sheets made from paper or cellulose in pulp-bale packaging, the method comprising:
wrapping a pulp bale formed by a plurality of stacked cellulose layers with a one-part or two-part wrapping sheet made from paper or with a lower sheet made from cellulose and an upper sheet made from cellulose,
inserting one or more staples composed of a strip made from cellulose or paper into the bale at an overlapping point of the two paper or cellulose sheets or at an end fold of the wrapping sheets made from cellulose or paper, and
delivering the one or more staples, each in an elongate strip or tape form, to a tool used to form and insert the one or more staples.

2. The method as claimed in claim 1 , wherein the tool presses the staple material through, pre-punched holes in the wrapping sheets.

3. The method as claimed in claim 1 , wherein during the inserting step the tool makes from the paper or cellulose strip a U-shaped staple by pushing ends of the U-shaped staple in between the stacked cellulose layers of the pulp-bale.

4. A method for fastening wrapping sheets made from paper or cellulose in pulp-bale packaging, the method comprising:
wrapping a pulp bale formed by a plurality of stacked cellulose layers with a one-part or two-part wrapping sheet made from paper or with a lower sheet made from cellulose and an upper sheet made from cellulose,
delivering one or more staples of elongate strip or tape material made from cellulose or paper to a tool used to form and insert said one or more staples, and
inserting one or more staples formed from the strip into the bale at an overlapping point of the two paper or cellulose sheets or at an end fold of the wrapping sheets made from cellulose or paper
wherein during the inserting step the tool causes the paper or cellulose strip to form a U-shaped staple by pushing ends of the U-shaped staple in between the stacked cellulose layers of the pulp-bale, with the ends of the strip forming the staple folded back on themselves during the inserting step.

5. The method as claimed in claim 4 , wherein the tool presses the staple material through, pre-punched holes in the wrapping sheets.

Assignees

• Writzl Walter
• Andritz Ag Maschf

Inventors

• Writzl Walter

Classifications

• Y10T24/1402

  Packet holders · CPC title

• Y10T24/209

  Paper-penetrating · CPC title

• B65D65/46

  Applications of disintegrable, dissolvable or edible materials · CPC title

• Y10S411/905

  Paper or wood · CPC title

• B65D65/00 Primary

  Wrappers or flexible covers; Packaging materials of special type or form (wrappers or envelopes with shock-absorbing properties B65D81/03) · CPC title