EP0725748B1 - Apparatus and method for labelling containers using thermal bonding - Google Patents
Apparatus and method for labelling containers using thermal bonding Download PDFInfo
- Publication number
- EP0725748B1 EP0725748B1 EP94928472A EP94928472A EP0725748B1 EP 0725748 B1 EP0725748 B1 EP 0725748B1 EP 94928472 A EP94928472 A EP 94928472A EP 94928472 A EP94928472 A EP 94928472A EP 0725748 B1 EP0725748 B1 EP 0725748B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- label
- container
- leading edge
- trailing edge
- labels
- 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.)
- Revoked
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C3/00—Labelling other than flat surfaces
- B65C3/06—Affixing labels to short rigid containers
- B65C3/08—Affixing labels to short rigid containers to container bodies
- B65C3/14—Affixing labels to short rigid containers to container bodies the container being positioned for labelling with its centre-line vertical
- B65C3/16—Affixing labels to short rigid containers to container bodies the container being positioned for labelling with its centre-line vertical by rolling the labels onto cylindrical containers, e.g. bottles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/08—Label feeding
- B65C9/18—Label feeding from strips, e.g. from rolls
- B65C9/1803—Label feeding from strips, e.g. from rolls the labels being cut from a strip
- B65C9/1815—Label feeding from strips, e.g. from rolls the labels being cut from a strip and transferred by suction means
- B65C9/1819—Label feeding from strips, e.g. from rolls the labels being cut from a strip and transferred by suction means the suction means being a vacuum drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/20—Gluing the labels or articles
- B65C9/24—Gluing the labels or articles by heat
- B65C9/25—Gluing the labels or articles by heat by thermo-activating the glue
Definitions
- This invention relates to apparatus used for applying labels to containers.
- the invention has a particular, although not exclusive, application in connection with machinery encompassing roll-fed labelling apparatus.
- Roll-fed labellers commonly comprise means for supplying labels to a vacuum drum which, in turn, offers the labels to containers housed on an adjacent rotating turret.
- the labels which initially are in the form of a continuous web, are fed through a series of rollers including, for example, a standard cutter and pinch roller, which cuts the web at appropriate lengths in order to provide separate labels.
- the labels are held to the vacuum drum by a vacuum means before each are released to a respective adjacent container upon which they are intended to be applied.
- the containers may be of any type, and are generally those used for containing food or beverages.
- the containers are mounted in chucks attached to the turret and are adapted to rotate about an axis parallel to the turret axis, about which the turret itself rotates.
- the invention seeks to accomplish this object by causing the label to form a sleeve which snugly circumnavigates the containers; having the leading and trailing edge of the label jointed to each other, as opposed to the container.
- Document FR-A-2589431 discloses a method and apparatus for applying a plastic label to a receptacle.
- the labels are made of a pre-glued material and may take the form of a label web or a series of individual labels.
- the adhesive applied is thermally activated and is applied to the edges of the inner surface of the labels.
- the labels are then passed between a guide drum and a heat source which activates the adhesive prior to the label being attached to the receptacle. In this way, the leading edge of the label is glued to the receptacle and the trailing edge overlaps and is fixed to the leading edge via the adhesive printed thereon.
- Document EP-A-0437353 discloses a method and apparatus for applying a label to a container.
- a label material is employed which can be softened by heat so as to create a weld joint between the trailing edge and the leading edge of the label.
- the label is first applied to the container by affixing the leading edge of the label to the container using a hot melt glue, applied using a glue applicator.
- the label is then passed around the container and a joint is formed by applying heat to the overlapping joint between the trailing edge and the leading edge of the label.
- Document US-A-4694633 relates to apparatus for applying a heat-shrinkable film to a receptacle.
- the leading edge of the film is held in a position closely adjacent to the surface of the receiving article by a spatula device, which incorporates two series of holes.
- a first series of holes corresponds to the leading edge of the film, by which means the leading edge is secured temporarily utilising a vacuum.
- This assembly is then rotated such that the film encompasses the circumference of the receptacle.
- the trailing edge of the film is held in position via a second series of holes on the spatula device, in a manner similar to the leading edge.
- a heating device is then applied to form the joint between the overlapping trailing and leading edges of the film, whereby the film is held between the spatula and the heating device.
- the film is not actually bonded to the surface of the receiving article as is disclosed in FR-A-2589431 or EP-A-0437353.
- apparatus for applying a label to a container, the label having a thermally activated adhesive material pre-printed thereon, the apparatus including a heating means adapted to induce thermal bonding of a leading edge of the label to a trailing edge of the label once the label has circumnavigated the container, characterised in that the leading edge of the label is held in contact with the container during said circumnavigation by a non-chemical means excluding any glue or adhesive, or by water.
- the non-chemical means may be static electricity.
- the heating means comprises electric elements.
- the heating means may comprise a heat lamp located in juxta-position to the location where said thermal bonding of the leading edge to the trailing edge of the label is required to be effected.
- said apparatus includes a vacuum drum and wherein said electric elements may be housed within said drum.
- the heating means may use heat derived from frictional losses in moving parts of the apparatus.
- Apparatus as may be found in a roll-fed labelling machine comprises a turret 1 which is rotatable about a fixed axis 2.
- the turret is adapted to support a plurality of containers 3 which, in the embodiment shown, are cylindrical plastic bottles.
- the turret 1 rotates in a clockwise direction about its axis 2.
- the bottles or containers 3 are also rotatably mounted by chucks (not shown). The chucks allow the containers 3 to spin in an anti-clockwise direction about their centre axis.
- the apparatus also includes a vacuum drum 4 which is adapted to rotate about the axis 5 and comprises suction means for holding labels 6 thereto as it rotates.
- the vacuum drum is adapted to rotate in a clockwise direction about its axis 5 in use.
- a series of rollers 7 supply the labels 6 to the vacuum drum 4.
- the rollers 7 include a standard cutter and pinch roller 7a which cuts the web of labels 8 into a plurality of individual labels 6.
- the labels 6 supplied to the drum 4 are inherent with a thermally-activated adhesive material positioned along the leading edge and trailing edge of each respective label 6. This material may be inherent in the label material itself or, alternatively, may be applied as a coating in a print run while the labels are in web form before being applied to the roll-fed labelling apparatus.
- the vacuum drum 4 offers a label 6 to a respective container 3.
- the leading edge of the label 6 is taken up by the container and this may be accomplished using water or any non-chemical means such as static electricity or the like.
- the label 6 is then encouraged to wrap around said container 3 by the combined rotation of the turret 1, container 3 and vacuum drum 4.
- the trailing edge of the label 6 is then secured or otherwise attached to the leading edge of the label through the use of the thermally-activated adhesive material inherent in the label 6.
- the adhesive material is, in fact, thermally-activated by heating elements 9.
- the heating elements 9 are housed within the vacuum drum 4.
- the invention is not limited to such an embodiment and the heating elements 9 may, for example, alternatively be in the form of heat lamps or the like.
- a heat source is provided which causes the thermally-activated adhesive material located at least at the leading or trailing edge of the label to be activated. It is realised, however, that the heat of the vacuum drum or other apparatus previously included in roll-fed labelling apparatus may be cleverly employed to provide thermal activation means.
- the invention described hereinbefore provides a means of applying a label to a container such that the label is in the form of a rolled-on sleeve with minimal or no bonding required between the bottle and the label.
- This has the advantage of allowing the label to be cut from the bottle with the bottle thereafter being recycled in an undamaged state and, secondly, eliminating or reducing the extent of glue consumables or application equipment being required. This latter aspect of course reduces the capital and running costs of the apparatus required to perform this process of production.
Landscapes
- Labeling Devices (AREA)
Description
This invention relates to apparatus used for applying
labels to containers. The invention has a particular,
although not exclusive, application in connection with
machinery encompassing roll-fed labelling apparatus.
Roll-fed labellers commonly comprise means for
supplying labels to a vacuum drum which, in turn,
offers the labels to containers housed on an adjacent
rotating turret. The labels, which initially are in
the form of a continuous web, are fed through a series
of rollers including, for example, a standard cutter
and pinch roller, which cuts the web at appropriate
lengths in order to provide separate labels. The
labels are held to the vacuum drum by a vacuum means
before each are released to a respective adjacent
container upon which they are intended to be applied.
The containers may be of any type, and are generally
those used for containing food or beverages. The
containers are mounted in chucks attached to the turret
and are adapted to rotate about an axis parallel to the
turret axis, about which the turret itself rotates.
In the past it has been known to attach the labels to
the containers by various methods. Such methods
include the use of adhesives or glues, hot melt
techniques, water adhesion and the like. However, a
disadvantage of these known methods of securing labels
to their respective containers is that their use
frequently causes damage or marking to the containers.
This obviously has detrimental implications when it is
sought to recycle the containers. A similar
disadvantage results when removal of the label from the
container, which is required during recycling, causes
similar marking or damage of the containers.
It is therefore an object of the invention to provide a
means of attaching labels to containers, particularly
in connection with roll-fed labelling apparatus wherein
the container is not potentially marked or damaged by
the attachment method. The invention seeks to
accomplish this object by causing the label to form a
sleeve which snugly circumnavigates the containers;
having the leading and trailing edge of the label
jointed to each other, as opposed to the container.
Document FR-A-2589431 discloses a method and apparatus
for applying a plastic label to a receptacle. The
labels are made of a pre-glued material and may take
the form of a label web or a series of individual
labels. The adhesive applied is thermally activated
and is applied to the edges of the inner surface of the
labels. The labels are then passed between a guide
drum and a heat source which activates the adhesive
prior to the label being attached to the receptacle.
In this way, the leading edge of the label is glued to
the receptacle and the trailing edge overlaps and is
fixed to the leading edge via the adhesive printed
thereon.
Document EP-A-0437353 discloses a method and apparatus
for applying a label to a container. A label material
is employed which can be softened by heat so as to
create a weld joint between the trailing edge and the
leading edge of the label. Preferably, the label is
first applied to the container by affixing the leading
edge of the label to the container using a hot melt
glue, applied using a glue applicator. The label is
then passed around the container and a joint is formed
by applying heat to the overlapping joint between the
trailing edge and the leading edge of the label.
Document US-A-4694633 relates to apparatus for applying
a heat-shrinkable film to a receptacle. The leading
edge of the film is held in a position closely adjacent
to the surface of the receiving article by a spatula
device, which incorporates two series of holes. A
first series of holes corresponds to the leading edge
of the film, by which means the leading edge is secured
temporarily utilising a vacuum. This assembly is then
rotated such that the film encompasses the
circumference of the receptacle. The trailing edge of
the film is held in position via a second series of
holes on the spatula device, in a manner similar to the
leading edge. A heating device is then applied to form
the joint between the overlapping trailing and leading
edges of the film, whereby the film is held between the
spatula and the heating device. In this way, the film
is not actually bonded to the surface of the receiving
article as is disclosed in FR-A-2589431 or EP-A-0437353.
According to the invention there is provided apparatus
for applying a label to a container, the label having a
thermally activated adhesive material pre-printed
thereon, the apparatus including a heating means
adapted to induce thermal bonding of a leading edge of
the label to a trailing edge of the label once the
label has circumnavigated the container, characterised
in that the leading edge of the label is held in
contact with the container during said circumnavigation
by a non-chemical means excluding any glue or adhesive, or by water.
Preferably, the non-chemical means may be static
electricity.
Preferably the heating means comprises electric
elements. Alternatively, the heating means may
comprise a heat lamp located in juxta-position to the
location where said thermal bonding of the leading edge
to the trailing edge of the label is required to be
effected.
Preferably said apparatus includes a vacuum drum and
wherein said electric elements may be housed within
said drum.
Alternatively, the heating means may use heat derived
from frictional losses in moving parts of the
apparatus.
A method of applying a label from a label web to a
container, the label web comprising multiple labels,
each label having a leading edge and a trailing edge
and a thermally activated adhesive material pre-printed
thereon, the method comprising:
In order to enable a better understanding of the
invention, an example embodiment will now be described
with reference to the accompanying drawings:-
Apparatus as may be found in a roll-fed labelling
machine comprises a turret 1 which is rotatable about a
fixed axis 2. The turret is adapted to support a
plurality of containers 3 which, in the embodiment
shown, are cylindrical plastic bottles. In use, the
turret 1 rotates in a clockwise direction about its
axis 2. The bottles or containers 3 are also rotatably
mounted by chucks (not shown). The chucks allow the
containers 3 to spin in an anti-clockwise direction
about their centre axis.
The apparatus also includes a vacuum drum 4 which is
adapted to rotate about the axis 5 and comprises
suction means for holding labels 6 thereto as it
rotates. The vacuum drum is adapted to rotate in a
clockwise direction about its axis 5 in use.
A series of rollers 7 supply the labels 6 to the vacuum
drum 4. The rollers 7 include a standard cutter and
pinch roller 7a which cuts the web of labels 8 into a
plurality of individual labels 6. The labels 6
supplied to the drum 4 are inherent with a thermally-activated
adhesive material positioned along the
leading edge and trailing edge of each respective label
6. This material may be inherent in the label material
itself or, alternatively, may be applied as a coating
in a print run while the labels are in web form before
being applied to the roll-fed labelling apparatus.
In use, the vacuum drum 4 offers a label 6 to a
respective container 3. The leading edge of the label
6 is taken up by the container and this may be
accomplished using
water or
any non-chemical means such as
static electricity or the like. The label 6 is
then encouraged to wrap around said container 3 by the
combined rotation of the turret 1, container 3 and
vacuum drum 4.
The trailing edge of the label 6 is then secured or
otherwise attached to the leading edge of the label
through the use of the thermally-activated adhesive
material inherent in the label 6. The adhesive
material is, in fact, thermally-activated by heating
elements 9. In the embodiments shown, the heating
elements 9 are housed within the vacuum drum 4.
However, the invention is not limited to such an
embodiment and the heating elements 9 may, for example,
alternatively be in the form of heat lamps or the like.
What is essential to the invention is that a heat
source is provided which causes the thermally-activated
adhesive material located at least at the leading or
trailing edge of the label to be activated. It is
realised, however, that the heat of the vacuum drum or
other apparatus previously included in roll-fed
labelling apparatus may be cleverly employed to provide
thermal activation means.
Once the trailing edge of the label 6 is adhered to the
leading edge of the label 6 there is provided a sleeve
which surrounds the surface of the container. The
effect of this is that the bottle or container 3 does
not itself receive any glue, adhesive or hot melt
directly on its surface of necessity. This will
depend, of course, on the means used of causing the
label to circumnavigate the container prior to the
leading and trailing edge of the label 6 being adhered
together. It is realised in the invention that it is
advantageous, when it is desired to recycle the
container and remove the label, to avoid using an
adhesion means which contacts both the label and
container as this can lead to marking or damage of the
container itself.
The invention described hereinbefore provides a means
of applying a label to a container such that the label
is in the form of a rolled-on sleeve with minimal or no
bonding required between the bottle and the label.
This has the advantage of allowing the label to be cut
from the bottle with the bottle thereafter being
recycled in an undamaged state and, secondly,
eliminating or reducing the extent of glue consumables
or application equipment being required. This latter
aspect of course reduces the capital and running costs
of the apparatus required to perform this process of
production.
Claims (7)
- Apparatus for applying a label (6) to a container (3), the label having a thermally activated adhesive material pre-printed thereon, the apparatus including a heating means (9) adapted to induce thermal bonding of a leading edge of the label to a trailing edge of the label once the label has circumnavigated the container (3);
characterised in that:-the leading edge of the label is held in contact with the container (3) during said circumnavigation by a non-chemical means excluding any glue or adhesive, or by water. - Apparatus as claimed in Claim 1 where said non-chemical means is static electricity.
- Apparatus as claimed in any one of the preceding Claims, wherein the heating means comprises electric elements (9).
- Apparatus as claimed in Claim 3, including a vacuum drum (4) and wherein said electric elements (9) are housed within said drum (4).
- Apparatus as claimed in any one of Claims 1 and 2, wherein the heating means (9) comprises a heat lamp located in juxta-position to the location where said thermal bonding of the leading edge to the trailing edge of the label (6) is required to be effected.
- Apparatus as claimed in any one of Claims 1 and 2, wherein the heating means (9) uses heat derived from frictional losses in moving parts of the apparatus.
- A method of applying a label (6) from a label web (8) to a container (3), the label web (8) comprising multiple labels (6), each label (6) having a leading edge and a trailing edge and a thermally activated adhesive material pre-printed thereon, the method comprising:-a. separating the label (6) from the label web (8);b. causing the label (6) to circumnavigate the container (3), the leading edge of the label being held in contact with the container (3) during said circumnavigation by non-chemical means excluding any glue or adhesive or by water;c. applying heat to thermally activate the adhesive material so as to join the leading edge and the trailing edge of the label (6) to each other so as to form a sleeve about the container (3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB939322303A GB9322303D0 (en) | 1993-10-29 | 1993-10-29 | Apparatus and method for labelling containers using thermal bonding |
| GB9322303 | 1993-10-29 | ||
| PCT/GB1994/002170 WO1995011833A1 (en) | 1993-10-29 | 1994-10-05 | Apparatus and method for labelling containers using thermal bonding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0725748A1 EP0725748A1 (en) | 1996-08-14 |
| EP0725748B1 true EP0725748B1 (en) | 1998-04-22 |
Family
ID=10744309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94928472A Revoked EP0725748B1 (en) | 1993-10-29 | 1994-10-05 | Apparatus and method for labelling containers using thermal bonding |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0725748B1 (en) |
| AU (1) | AU7789294A (en) |
| BR (1) | BR9407891A (en) |
| CA (1) | CA2173836A1 (en) |
| DE (1) | DE69409822T2 (en) |
| GB (1) | GB9322303D0 (en) |
| WO (1) | WO1995011833A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009031479A1 (en) * | 2009-07-01 | 2011-01-05 | Krones Ag | Device for applying label strips to containers |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4270296A (en) * | 1994-12-24 | 1996-07-19 | Andrew William Wilkey | Product labelling |
| US5964975A (en) * | 1997-08-18 | 1999-10-12 | Trine Labeling Systems, Inc. | Method and apparatus of labeling cylindrical articles with label having formed curl |
| ITPR20000042A1 (en) * | 2000-07-21 | 2002-01-21 | Sasib Labelling Machinery S P | LABELING MACHINE FOR NON CYLINDRICAL SECTION CONTAINERS |
| DE10243701A1 (en) * | 2002-09-20 | 2004-03-25 | Khs Maschinen- Und Anlagenbau Ag | Roll-feed labeling machines for processing an endless label tape coated with thermally activated glue |
| DE102008027913A1 (en) * | 2008-06-12 | 2010-02-25 | Khs Ag | Method and device for labeling containers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834963A (en) * | 1970-01-23 | 1974-09-10 | B & J Mfg Co | Method for applying labels to containers |
| IT1173970B (en) * | 1984-05-09 | 1987-06-24 | Gianfranco Cecchi | PROCEDURE AND EQUIPMENT TO AUTOMATICALLY APPLY BAND TIES TO BODIES, IN PARTICULAR FOOD PRODUCTS, OF A SUBSTANTIALLY CYLINDRICAL IRREGULAR SHAPE |
| US4694633A (en) * | 1985-05-21 | 1987-09-22 | Fuji Seal Industry Co., Ltd. | Film wrapping machine |
| NZ217648A (en) * | 1985-11-04 | 1988-03-30 | Owens Illinois Inc | Apparatus for applying heat activatable adhesive labels to containers |
| US5137596A (en) * | 1990-01-12 | 1992-08-11 | B & H Manufacturing Company, Inc. | Apparatus for heat sealing labels on containers |
-
1993
- 1993-10-29 GB GB939322303A patent/GB9322303D0/en active Pending
-
1994
- 1994-10-05 EP EP94928472A patent/EP0725748B1/en not_active Revoked
- 1994-10-05 BR BR9407891A patent/BR9407891A/en not_active IP Right Cessation
- 1994-10-05 AU AU77892/94A patent/AU7789294A/en not_active Abandoned
- 1994-10-05 DE DE69409822T patent/DE69409822T2/en not_active Revoked
- 1994-10-05 CA CA002173836A patent/CA2173836A1/en not_active Abandoned
- 1994-10-05 WO PCT/GB1994/002170 patent/WO1995011833A1/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009031479A1 (en) * | 2009-07-01 | 2011-01-05 | Krones Ag | Device for applying label strips to containers |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9322303D0 (en) | 1993-12-15 |
| DE69409822D1 (en) | 1998-05-28 |
| BR9407891A (en) | 1996-10-29 |
| DE69409822T2 (en) | 1998-09-10 |
| WO1995011833A1 (en) | 1995-05-04 |
| EP0725748A1 (en) | 1996-08-14 |
| CA2173836A1 (en) | 1995-05-04 |
| AU7789294A (en) | 1995-05-22 |
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