In-mould labelling process

Patent metadata

Field	Value
Publication number	US-10906218-B2
Application number	US-201715845588-A
Country	US
Kind code	B2
Filing date	Dec 18, 2017
Priority date	Jan 27, 2012
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

There is disclosed an in-mould labelling process for the manufacture of a labelled article comprising the steps of: feeding a labelstock web into a mould; forming an article in the mould such that the formed article contacts and effectively adheres to a label of the labelstock web; detaching the adhered label from the labelstock web; and removing the formed and labelled article from the mould.

First claim

What is claimed is:

1. A mould for manufacturing an in-mould labelled article comprising at least a first mould part and a second mould part, which first and second mould parts, when combined, define a mould cavity with an inner shape corresponding to the outer shape of the article to be formed in the mould, wherein in at least one of the mould parts a slit or tunnel is provided which intersects the mould cavity, wherein the slit or tunnel defines a curved path.

2. The mould according to claim 1 , wherein the slit or tunnel has a first outer opening leading to a first inner opening and a second inner opening leading to a second outer opening.

3. The mould according to claim 2 , wherein the first and second inner openings are connected via one or two grooves within and/or extending along a surface of the mould cavity.

4. The mould according to claim 2 , wherein an area between the first and second inner openings substantially corresponds to the size of a label to be applied to an article in an in-mould labelling process.

5. The mould according to claim 1 , wherein the slit or tunnel defines a gap substantially corresponding to the width and thickness of a labelstock web fed through the slit or tunnel.

6. The mould according to claim 1 , wherein the mould comprises a recess for forming a protrusion or bulge on the article, on which the label is applied during the in-mould labelling process.

7. The mould according to claim 6 , wherein the slit or tunnel intersects the recess in a plane substantially parallel to a bottom face of the recess.

Assignees

• Innovia Films Ltd
• Alpla Werke Alwin Lehner Gmbh & Co Kg

Inventors

• Langstaff Stephen
• Konkel Christopher
• Siegl Robert

Classifications

• B29C2049/4863

  Mould identification, e.g. chip on mould with ID and process data · CPC title

• B29C49/2408 Primary

  In-mould lining or labelling · CPC title

• B29C2049/2412

  outside the article · CPC title

• B29C43/50 Primary

  Removing moulded articles · CPC title

• B29C43/184

  shaped by the compression of the material during moulding · CPC title