KR101781210B1 - Cooling means and Coating method of heat shrinkable film for PET which has the Same - Google Patents

Cooling means and Coating method of heat shrinkable film for PET which has the Same Download PDF

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Publication number
KR101781210B1
KR101781210B1 KR1020150079449A KR20150079449A KR101781210B1 KR 101781210 B1 KR101781210 B1 KR 101781210B1 KR 1020150079449 A KR1020150079449 A KR 1020150079449A KR 20150079449 A KR20150079449 A KR 20150079449A KR 101781210 B1 KR101781210 B1 KR 101781210B1
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KR
South Korea
Prior art keywords
pet bottle
pet
shrinkable film
heat
cooling air
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Application number
KR1020150079449A
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Korean (ko)
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KR20160143956A (en
Inventor
안형배
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안형배
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Priority to KR1020150079449A priority Critical patent/KR101781210B1/en
Priority to PCT/KR2016/005442 priority patent/WO2016195302A1/en
Publication of KR20160143956A publication Critical patent/KR20160143956A/en
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Publication of KR101781210B1 publication Critical patent/KR101781210B1/en

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    • 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
    • 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
    • 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
    • B65C9/38—Label cooling or drying

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  • Labeling Devices (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The present invention relates to a heat shrinkable film coating method for a PET bottle having a cooling means, and more particularly, to a method for coating a heat shrinkable film on a PET bottles while thermally fusing a shrinkable label paper to a PET bottle main surface without causing any adverse effects, The present invention relates to a heat shrinkable film coating method for a PET bottle having a cooling means for achieving a highly efficient heat sealing process of a PET bottle, and a cooling means therefor.
The method of coating a heat shrinkable film of a PET bottle having the cooling means of the present invention is a method of coating a heat shrinkable film of a PET bottle by inserting a holder cap for supplying cooling air into a PET bottle at the injection hole of the PET bottle, So that the PET bottle itself is prevented from being thermally deformed during the shrink wrapping process of the label paper.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat shrinkable film covering method for a PET bottle having a cooling means,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of covering a heat shrinkable film label sheet (hereinafter, referred to as a 'label sheet'), which is attached to the outer surface of a PET bottle, A heat shrinkable film covering method of a PET bottle having a cooling means for performing a heat fusion process of a label paper so as not to adversely affect the PET bottles themselves due to a momentary high temperature in the thermal fusion bonding, And a cooling means therefor.

BACKGROUND ART PET bottles are generally manufactured by blow molding a thermoplastic polyester resin and are widely used as a liquid beverage or a food container such as a carbonated drink, an alcoholic beverage, a juice drink, a soy sauce, a sauce, Is superior in transparency and has good durability, chemical resistance and elastic strength, and thus its utilization as a container for liquid foods and chemical products is gradually increasing.

In the use of such a PET bottle, label paper (including paper label paper or film label paper) is attached to the outer surface in order to display the origin of the product or to display the quality. Conventional label labeling methods include direct printing type, sticker type, OPP film And the like are being applied.

However, the above-described display method has the following problems.

In the method of directly printing the label mark (manufacturer and quality mark) on the PET bottle, the printing ink is mixed with the pulverizing resin in the recycling step after use of the PET bottle, that is, the recycling step of the recovered PET bottle, Disadvantageous,

Since the sticker itself is mostly paper (paper), the sticker-attached labeling method is also disadvantageous because the sticker pulverized material becomes foreign in the pulverization process for recycling,

In the OPP film bonding method, since the adhesive used for the OPP film (oriented polyoropulene film) is a polymer chemical adhesive containing an environmental hormone, this also causes health hygiene problems due to the release of the environmental hormone during the processing for recycling.

Therefore, a labeling method using a heat-shrinkable film, which is extremely easy to peel off at the time of recycling, has been recognized as the most reasonable method for label sheets of PET bottles.

In other words, it is no exaggeration to say that the labeling method of PET bottles (including "label packaging") has no other alternative except for the way of national environmental policy, recycling of resources and coating with heat shrinkable film.

Generally, heat-shrinkable films are produced by unidirectionally or bidirectionally stretching polyvinyl (PVC), poly (ethylene terephthalate), and polypropylene (PP film) films at a temperature close to the melting point. When heat is applied from the outside of the film, the film shrinks rapidly, and the packaging function and coating function are exhibited.

Conventionally, a label display method using a heat shrinkable film utilizes the above-described shrinking function of the film itself. When a tube is wrapped around the main surface of a PET bottle and then passed through the heating chamber 3, the heat shrinkable film self- The temperature of the bottle is close to the melting point of the PET bottle. In the case of the thin PET bottle material, the bottle itself is partially deformed due to the instant heating, so that the PET bottle material Should be manufactured as thick as possible, which increases the manufacturing cost of PET bottles and has the problem of overestimating the weight of the PET bottles to the environment-friendly policies of the Ministry of Environment.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a heat-shrinkable film label covering a PET bottle main surface so as not to affect the PET bottle itself, This is a new way to make it happen very easily.

Registration of the Korean Intellectual Property Office, Utility Model Registration No. 20-0236922 (September 25, 2001)

In view of the above background of the present invention, the present invention is based on the background of the present invention, and it is an object of the present invention to provide a method for producing a thermoplastic resin film by thermally fusing a thermally shrinkable film label on a main surface of a PET bottle, And a cooling means for effectively preventing the plastic bottle itself from being deformed by the instantaneous heating by spraying air to the plastic bottle, and a cooling means therefor.

In order to more reliably solve the above-described problem, the present invention provides a thermoplastic film label sheet on a PET bottle to simultaneously apply cooling air by a separate cooling / supplying system to the interior of the PET bottle When the label paper is shrink-covered by the instant heating, the high heat is not directly transmitted to the PET bottle, thereby effectively preventing deformation of the PET bottle itself.

When the label paper of the PET bottle is coated with the heat shrinkable label paper, since the label paper can be easily peeled off when the PET bottle is recovered after the first use and recycled, the method of attaching the label paper by the heat shrinkable film is the most preferable method It has been recognized that the present invention can simultaneously supply cooling air by a separate cooling air supply system to the inside of a PET bottle during a label paper coating operation using such a heat shrinkable film, The heat is applied only to the shrinking function of the heat shrinkable film and does not affect the PET bottle itself so that defective products due to the deformation of the PET bottle itself are not generated during the label coating process.

Even if the thickness of the PET bottle is made thin by the above-mentioned effect, the high heat generated in the process of covering the label paper has no influence on the PET bottle, so that it can contribute to the reduction of the resin material due to the supply of the PET bottles, There are various industrial effects such as being able to contribute greatly to conservation.

FIG. 1 is a view showing an example of a conventional heat-sealing process of a shrinkable label sheet
FIG. 2 is an exemplary view showing a heat-sealing process of a shrinkable label sheet by a heat shrinkable film covering method of a PET bottle having a cooling means of the present invention
Fig. 3 is an exemplary view showing a heat-sealed state of a shrinkable label sheet by a heat shrinkable film covering method of a PET bottle having a cooling means of the present invention
Figure 4 is an illustration of a holder cap of a cooling means according to the present invention;
5 is a flow chart showing a coating apparatus for a shrinkable label paper provided with a cooling means according to a preferred embodiment of the present invention

FIG. 1 is a view illustrating an exemplary heat sealing process of a conventional shrinkable label sheet to illustrate a specific technical method of the present invention.

In the conventional method, in coating the heat-shrinkable film of the tubular type, that is, the label paper 2, on which the origin of the product and the quality indication are printed on the main surface of the PET bottle 1, In the secondary process of wrapping the label paper 2 and then passing it through a heating chamber 3, a hot air of a high temperature is applied to the main surface of the label paper 2 so that the label paper 2 is contracted at the main surface of the PET bottle 1 So that the thermal fusion can be performed naturally.

However, in the above-mentioned process, since the PET bottle 1 itself is also affected by a certain temperature and high temperature during the heating process of the shrinkable label paper 2, the case of the thin PET bottle 1 is irregularly caused by the self- (1) due to the shrinkage pressure generated during the process of heat shrinkage of the label paper, it is possible to cover the shrink label paper (2) only when the thickness of the PET bottle (1) is thick.

The present invention is based on the above-described conventional method and is characterized in that the shrinkable label paper 2 is wrapped around the PET bottle 1 and the cooling air is supplied to the inside of the PET bottle 1 (1) so that the heating temperature of the shrink label paper has no influence on the PET bottle (1) itself.

In addition, when a certain amount of cooling air is injected into the PET bottle 1, the air pressure by the cooling air is formed in the PET bottle 1 to shape the PET bottle 1, so that the shrinkage of the shrinkable label paper This will not affect the PET bottle itself.

FIG. 2 is a view showing a heat-sealing process of a shrinkable label paper by a heat shrinkable film covering method of a PET bottle having a cooling means of the present invention, and FIG. 3 is a view showing a heat shrinkable film covering method of a PET bottle having cooling means of the present invention And shows a heat-sealed state of the shrinkable label paper.

A holder cap 4 inserted into the injection port of the PET bottle 1 when the PET bottle 1 is passed through the heating chamber 3 while the shrinkable label paper 2 is placed on the main surface of the PET bottle 1 A cooling air supply pipe 5 is provided inside the heating chamber 3 and connected to a separate cooling air conditioning device 12 on the holder cap 4 side so that the holder cap 4 is connected to the heating chamber 3, The cooling air supply pipe 5 is configured to inject the cooling air from the upper portion of the holder cap 4 into the PET bottle 1 when the PET bottle 1 is transferred in the bottle 3.

In the case of a plastic bottle (1) having a very thin material thickness, cooling air is injected to supply a certain amount of cooling air into the plastic bottle (1) through the cooling air supply pipe (5) during the heat treatment of the shrinkable label paper By forming the cooling air pressure to shape the plastic bottle, the shrinkage pressure generated during the heat shrinking process of the label paper effectively prevents the plastic deformation of the plastic bottle.

The holder cap 4 may be installed in the heating chamber 3 and the holder cap 4 may be provided in the heating chamber 3 as necessary so that a plurality of the label caps 4 It goes without saying that a heat fusion process can be performed.

4 is an exemplary view showing a holder cap of a cooling means according to the present invention.

The holder cap 4 is made of a heat resistant resin or a nonferrous metal having a melting point of 250 ° C or higher and a cooling air supply pipe 5 is installed inside the cooling fan 4. These supply pipes are connected to a separate cooling air conditioner 12, .

Since the cooling air conditioning apparatus 12 uses a normal cold air supply mechanism, a detailed description thereof will be omitted.

A concrete cooling air conditioning device 12 for blowing cooling air into the PET bottle 1 to blow the cooling air into the PET bottle 1 in response to the external heat emitted during the condensation process of the heat shrinkable label paper 2 The configuration may be applied to the present invention by applying a supply nozzle of an existing liquid food automatic injecting apparatus.

FIG. 5 is a process chart showing a coating apparatus for a shrinkable label paper provided with a cooling means according to a preferred embodiment of the present invention,

A transfer system 10 is provided at a lower portion of the apparatus for transferring the PET bottles 1 and a shrinkable label sheet feeding device 11 is provided at one side of the bottle to cover the label paper 2 with the PET bottles 1, Respectively,

A heating unit 3a for shrinking the label paper is installed in the heating chamber 3 and a holder cap 4 for supplying cooling air to the PET bottle 1 is provided on the heating unit 3a, A plurality of holder caps 4 are formed on the transfer conveyor 4a at regular intervals and inserted into a plurality of PET bottles 1 passing through the heating chamber 3 in a one-to-one manner. The transfer conveyor 4a, (4).

That is, the holder cap 4 is mounted on the conveying conveyor 4a by the buffering means 6.

The buffering means 6 may be a spring with a lubrication force,

The buffering means 6 allows the insertion of the holder cap 4 when the bottle cap 4 is inserted into the injection port of the PET bottle 1 and allows the holder cap 4 to be inserted into the bottle 1 The upper injection port is elastically compressed to prevent the cooling air from being discharged to the outside of the PET bottle (1).

The conveying system 10, the shrinkable label sheet feeding apparatus 11, the cooling air conditioning apparatus 12, and the heating chamber 3 having the above-described configuration are applicable to general automatic apparatuses, and thus a detailed description thereof will be omitted.

The present invention is characterized in that when the shrinkable label sheet 2 which is a heat shrinkable film is covered and thermally fused around the PET bottle 1 as described above, So that no heat deformation is generated in the PET bottle 1 itself during the packaging process of the heat shrinkable label paper 2 by causing the cooling air to circulate entirely in the PET bottle 1 so as to correspond to the heating heat for heat shrinkage of the heat- According to the effects of the present invention as described above, even if the thickness of the PET bottle 1 is made thin, the heat shrink packaging operation using the shrinkable label paper 2 can be smoothly performed. As a result, (1) Industrial effects on various industries such as recycling and packaging cost reduction will be great.

1: plastic bottle 2: label paper 3: heating chamber 4: holder cap
5: cooling air supply pipe 6: buffer means
10: conveying system 11: shrinkable label sheet feeding device 12: cooling air conditioning device

Claims (3)

A heat-shrinkable film coating apparatus for a PET bottle having cooling means for supplying cooling air to the inside of a PET bottle (1) to prevent thermal deformation of the PET bottle itself,
A plurality of holder caps 4 provided with a cooling air supply pipe 5 inserted into a conveying conveyor 4a provided on an upper portion of a transporting PET bottle 1 are connected to a conventional air conditioning apparatus 12, So that cooling air can be supplied into the PET bottle 1,
When the holder cap 4 is inserted into the injection port of the PET bottle 1, the insertion of the holder cap 4 is made flexible and the holder cap 4 elastically presses the upper injection port of the PET bottle 1 And a buffer means (6) made of a spring is interposed between the conveying conveyor (4a) and the holder cap (4) so as to prevent the cooling air from being discharged to the outside of the PET bottle (1) .
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KR1020150079449A 2015-06-04 2015-06-04 Cooling means and Coating method of heat shrinkable film for PET which has the Same KR101781210B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150079449A KR101781210B1 (en) 2015-06-04 2015-06-04 Cooling means and Coating method of heat shrinkable film for PET which has the Same
PCT/KR2016/005442 WO2016195302A1 (en) 2015-06-04 2016-05-23 Method for covering pet bottle, having cooling means, with heat-shrinkable film and cooling means therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150079449A KR101781210B1 (en) 2015-06-04 2015-06-04 Cooling means and Coating method of heat shrinkable film for PET which has the Same

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KR20160143956A KR20160143956A (en) 2016-12-15
KR101781210B1 true KR101781210B1 (en) 2017-09-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101926127B1 (en) 2018-03-15 2019-02-26 남양매직(주) A labeling machine using a heterogeneous adhesive, and a PET bottle manufactured by the apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3881421B2 (en) * 1997-04-01 2007-02-14 住友商事マシネックス株式会社 Shrink wrapping machine and shrink wrap manufacturing method
KR100857647B1 (en) 2007-04-09 2008-09-08 주식회사 동성정밀 Label transfer apparatus of bottle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315795A (en) * 1978-06-12 1982-02-16 Dennison Manufacturing Company High speed decoration
US5259912A (en) * 1992-04-16 1993-11-09 Spear, Incorporated Continuous in-line labeler for flexible bottles
CA2094574A1 (en) * 1992-04-22 1993-10-23 Peter Nicholson Universal labeling apparatus and container inflation apparatus
KR200236922Y1 (en) 1999-02-09 2001-09-25 박근모 Steam Jet-Type Heating Line for Label Paper of Bottle
JP4465230B2 (en) * 2004-06-16 2010-05-19 東洋製罐株式会社 Method and apparatus for mounting shrink label on container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3881421B2 (en) * 1997-04-01 2007-02-14 住友商事マシネックス株式会社 Shrink wrapping machine and shrink wrap manufacturing method
KR100857647B1 (en) 2007-04-09 2008-09-08 주식회사 동성정밀 Label transfer apparatus of bottle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101926127B1 (en) 2018-03-15 2019-02-26 남양매직(주) A labeling machine using a heterogeneous adhesive, and a PET bottle manufactured by the apparatus

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WO2016195302A1 (en) 2016-12-08
KR20160143956A (en) 2016-12-15

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