WO2018008802A1

WO2018008802A1 - Pressure vessel having in-mold label and method for manufacturing same

Info

Publication number: WO2018008802A1
Application number: PCT/KR2016/011414
Authority: WO
Inventors: 변우홍
Original assignee: 변우홍
Priority date: 2016-07-04
Filing date: 2016-10-12
Publication date: 2018-01-11
Also published as: KR101716092B1

Abstract

The present invention is for the purpose of removing such a limitation, and the purpose of the present invention is to provide a pressure vessel having an in-mold label and a method for manufacturing the same, wherein at least a part of the outer surface of the pressure vessel is formed stereoscopically, and a label is deformed thereon so as to provide a stereoscopic appearance, thereby drawing the attention of a person who looks at the same. In order to accomplish the above purpose, the present invention provides a pressure vessel having an in-mold label and a method for manufacturing the same, the pressure vessel being characterized by comprising: an entrance portion; a body portion formed by inflating the same in a blowing type such that the same communicates with the entrance portion and is larger than the diameter of the entrance portion; a stereoscopic portion that protrudes outward from the outer peripheral surface of the body portion or is recessed inward such that at least a part of the surface of the body portion is endowed with a stereoscopic appearance; and a label attached in an in-mold labeling type to at least a part of the surface of the body portion and provided to cover the stereoscopic portion such that the label protrude outward in conformity with the contour of the stereoscopic body or forms a recess shape inward.

Description

Pressure vessel having an in-mold label and a method of manufacturing the same

The present invention relates to a pressure vessel having an in-mold label and a method for manufacturing the same, wherein the three-dimensional shape can be formed on the outer circumferential surface of the in-mold-labeled pressure vessel through a blowing operation on a preform and a method for producing the same. It is about.

A container capable of withstanding internal pressure to contain a fluid having internal pressure, such as a carbonated beverage, is called a pressure container.

In the case of such pressure vessels, a preform is usually manufactured, and a container is manufactured through a blowing operation to inject air thereto.

Meanwhile, in order to label the pressure vessel, the label is attached to the inside of the mold and the preform is expanded to be naturally attached to the surface of the container. This is called an in-mold labeling method.

By the way, when manufacturing a pressure-labeled pressure vessel using the in-mold labeling method, as shown in Japanese Patent Laid-Open No. 2006-276646, its outer peripheral surface is flat, and when a product is released using such a pressure vessel, There was a limit in attracting consumers' attention because it could only come out of appearance design.

Meanwhile, in the related art, when a three-dimensional shape is to be realized in a plastic container, a three-dimensional shape is formed on the outer surface of the container, and a label is put on the outer surface of the container, and the heat shrink method is implemented. In this case, the portion of the label to cover the three-dimensional part (hologram, It was difficult to produce a container where the aesthetics could be properly implemented because the boundary between the letter part) and the three-dimensional part did not match.

SUMMARY OF THE INVENTION The present invention has been made to solve this limitation, and has at least a portion of the outer surface of the pressure vessel in three dimensions, and having an in-mold label that can attract the attention of the person viewing it by modifying the label to have a three-dimensional impression thereon It is an object to provide a pressure vessel and a method of manufacturing the same.

The present invention for achieving this object, the body is formed in communication with the inlet and inflated in a blowing manner and formed larger than the diameter of the inlet, and at least a portion of the surface of the body to give a three-dimensional impression A three-dimensional portion protruding outward from the secondary outer circumferential surface or recessed inwardly; It is attached to at least a portion of the outer peripheral surface of the body portion by the in-mold labeling method, it is formed to cover the three-dimensional portion to form a three-dimensional feeling, characterized in that it comprises a label protruding outwardly or forming a recessed shape in the inner direction in accordance with the contour of the three-dimensional portion It provides a pressure vessel having an in-mold label.

Material of the inlet and body portion is characterized in that consisting of a PET material.

The label may include a substrate portion, an adhesive layer formed on an inner surface of the substrate portion and fused at a temperature higher than a predetermined temperature, and a pattern, pattern, picture, letters, or numbers printed on the outer surface of the substrate portion corresponding to the protruded or recessed portion of the three-dimensional portion. It characterized in that it comprises a printed layer.

The boundary of the protruding portion or the recessed portion of the three-dimensional portion and the boundary of the pattern, pattern, picture, letter or number of the printed layer of the label may be provided at corresponding positions.

At least a portion of the printed layer on which a pattern, a pattern, a picture, letters, or numbers are printed is hologramized.

At least a portion of the printed layer on which a pattern, a pattern, a picture, letters, or numbers are printed is provided with a reflective surface.

The label is embodied in a flat shape without a three-dimensional feeling before being attached to the body portion in the in-mold manner, characterized in that the three-dimensional shape is implemented on the label while the three-dimensional portion of the container is formed in the attachment process through the in-mold.

In addition, the present invention includes the steps of opening a mold is formed in the three-dimensional groove corresponding to the three-dimensional shape to be formed on the surface of the container; Attaching a label to an inner surface of the mold, wherein the label is attached to the inner surface of the mold such that at least a portion of the label covers the three-dimensional groove; Positioning the preform of the container under the cavity of the mold; Closing the mold and inflating the preform by injecting air into the preform at a predetermined range of pressure; While the expanded preform and the label are attached to each other, the label attached to the surface of the preform is deformed into a three-dimensional shape to fit the three-dimensional groove by the air pressure with the surface of the preform to be expanded; It provides a method for producing a pressure vessel having an in-mold label comprising the steps of separating the molds and the three-dimensional shape and the container with the label modified accordingly separated from the mold.

The label may include a substrate portion, an adhesive layer formed on an inner surface of the substrate portion and fused at a temperature higher than a predetermined temperature, and a pattern, pattern, picture, letters, or numbers printed on the outer surface of the substrate portion corresponding to the protruded or recessed portion of the three-dimensional portion. Including the printed layer, the step of attaching the label to the mold inner surface is characterized in that the step of attaching the label to the mold so that the printing layer is located in accordance with the three-dimensional groove.

It is characterized by maintaining the surface temperature of the mold at 40 ~ 80 ℃.

Characterized in that the injection pressure range of air 30 ~ 40 bar.

According to the present invention, since the three-dimensional shape, color, and texture may be imparted to the pressure vessel, it may be helpful to improve the advertisement promotion effect of the product using the pressure vessel.

In addition, various three-dimensional shapes may be realized by forming various types of patterns, letters, patterns, numbers, and pictures in the mold cavity.

In the case of the conventional three-dimensional shape, it was forced to use a heat shrink or direct attachment method, but the three-dimensional portion of the container and the printing surface (letters, drawings, patterns, patterns, numbers, etc.) of the container to cover the three-dimensional shape The border was not right.

However, in the present invention, a three-dimensional shape is formed with a large force through an in-mold label and a blowing method, and at the same time, the corresponding portion of the label is closely adhered to the three-dimensional portion to provide a pressure vessel that realizes aesthetics and placement accuracy. There is an advantage.

1 is a perspective view of a pressure vessel having an in-mold label in which three-dimensional characters are formed.

FIG. 2 is a perspective view of the pressure vessel body part and the label separated from the pressure vessel of FIG.

3 is a side view of the pressure vessel of FIG.

4 is a plan sectional view of the pressure vessel of FIG.

Fig. 5 is a plan sectional view with the label removed from the pressure vessel of Fig. 1;

6 is a perspective view of a pressure vessel with an in-mold label on which a three-dimensional illustration is formed.

7 is a front view of the pressure vessel of FIG.

8 is a side view of the pressure vessel of FIG.

Fig. 9 shows a procedure of manufacturing a pressure vessel having an in-mold label having a three-dimensional portion according to the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments merely make the disclosure of the present invention complete, and are common in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the invention, which is to be defined only by the scope of the claims.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of components other than the mentioned components.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to describe the present invention in more detail.

As shown in FIG. 1, the pressure vessel 100 including the in-mold label 200 according to the present invention includes an inlet 110 and a body 120 having a larger diameter than the inlet 110. It is.

A label 200 is attached to an outer circumferential surface of the body part 120, and a stepped part 121 is formed on the edge of the label 200 while being in-mold labeling.

This is a step in which a step is formed between the portion to which the label 200 is attached and the portion to which the label 200 is not attached while contacting the label 200 during the expansion of the pressure vessel 100, and the label 200 is not attached. The portion that is not formed protrudes slightly out of the portion to which the label 200 is attached.

The label 200 is disposed on the base portion 201 and the three-dimensional portion (see FIG. 2, 122) formed on the outer surface of the substrate portion 201 and formed on the outer circumferential surface of the pressure vessel 100 to meet the shape of the three-dimensional portion 122. A printed layer 202 is provided which protrudes or is recessed to form a three-dimensional effect.

An adhesive layer (see Fig. 5, 203) is formed on the back side of the substrate portion 201, and the adhesive layer 203 is fused with the surface of the expanded preform (preform to form a pressure vessel) having a high surface temperature during the in-mold labeling process. The label 200 is attached to the pressure vessel 100 surface.

When the label 200 is attached to the body portion 120 of the pressure vessel 100, the printing layer 202 of the label 200 is formed on the three-dimensional portion 122 formed on the surface of the body portion of the pressure vessel 100. Since it is located, the printed layer 202 is raised to the outside surface.

In particular, when the print layer 202 is a visible reflective layer or a hologram layer, the color of the light is changed depending on the direction of the viewer's vision. There is this.

In FIG. 1, the shaded portion is a portion treated with a hologram layer or a reflective layer among the print layers 202, and in this case, the 3D structure may be more remarkably emphasized.

2 shows a state in which the label 200 is detached from the body 120 of the pressure vessel 100.

The label 200 attached to the pressure vessel 100 according to the present invention is formed in a planar two-dimensional structure rather than originally formed in a three-dimensional structure.

However, for the portion to be covered on the three-dimensional portion 122 of the body portion 120 of the pressure vessel 100, a printing layer 202 is formed, and the reflective layer or the hologram layer is treated on this portion or the base portion 201 Make sure that colors, patterns, patterns, numbers, letters, and pictures are different from the surface colors.

The original two-dimensional label 200 is deformed by the pressure generated while the three-dimensional portion 122 of the body portion 120 of the pressure vessel 100 by the in-mold labeling is changed into a three-dimensional structure.

The three-dimensional portion 122 is formed on the surface of the body portion 120 of the pressure vessel 100, the three-dimensional portion 122 is protruded or recessed outward than the other surface of the body portion 122 and the other surface The boundary becomes clear.

In addition, the boundary of the three-dimensional portion 122 and the boundary of the printed layer 202 of the label 200 are disposed at the same or substantially similar position, so that the outline of the three-dimensional portion 122 is printed on the printed layer 202 of the label 200. To be revealed as is.

On the other hand, the line visible on the border of the point to which the label 200 is to be attached represents the stepped portion 121, the stepped portion 121 is a border between the portion that is labeled and the unlabeled portion in the in-mold labeling process Form.

As shown in Fig. 3, when the three-dimensional solid structure is formed and the pressure vessel 100 labeled is viewed from the side, the three-dimensional portion 122 and the printing layer 202 covering the three-dimensional portion 122 are directed outward. It will appear raised, which causes significant visual contour differences with surfaces without the solid portion 122.

As shown in FIG. 4, the three-dimensional portion 122 formed in the pressure vessel 100 is formed to protrude outward from other portions, and is formed to be stronger than other portions.

In addition, the three-dimensional portion 122 is formed to protrude to a different degree, this portion may form the letters, numbers, pictures, shapes, patterns, patterns, etc. can attract the attention of those looking at them.

The label 200 is attached to the three-dimensional portion 122, the print layer 202 is matched to the surface of the label 200, and protruded by the three-dimensional portion 122, so that not only the shape but also the color It has the advantage of attracting more attention through reflectance and hologram.

Here, the boundary surface of the printed layer 202 preferably corresponds to the boundary surface of the three-dimensional portion 122.

As will be described later, the three-dimensional portion 122 can be formed in the pressure vessel 100, because the three-dimensional groove (Fig. 9, 322) that is exactly matched to the three-dimensional portion 122 is formed inside the mold used for the blowing operation. The print layer 202 of the label 200 should be positioned to exactly cover this three-dimensional groove 322.

In this state, when the preform (FIG. 9, PF) expands, the portion expanding toward the three-dimensional groove 322 pushes the label 200 to the inner surface of the three-dimensional groove 322 to form the three-dimensional portion 122, and at the same time, the three-dimensional portion of the preform (FIG. The shape can appear.

5 shows a state in which the three-dimensional container 100 and the label 200 are separated.

When the label 200 is detached after the label 200 is deformed in the state in which the label 200 is attached to the three-dimensional container 100, a portion corresponding to the print layer 202 of the label 200 is formed by thermal deformation and physical deformation. The three-dimensional shape is modified to match the shape of the three-dimensional portion 122 of the pressure vessel 100.

However, as described above, the label 200 originally forms a plane as a two-dimensional structure, the flat printing layer 202 on the outer surface of the base portion 201, the adhesive layer on the inner surface of the base portion 201 203 is formed.

6 to 8 show that the figure (eg, dragon shape) is expressed in three-dimensional form on the pressure vessel (10).

1 to 5 are to show that it is possible to represent the letters in a three-dimensional shape, Figures 6 to 8 are provided to show that a complex picture or pattern in addition to the letters are possible.

Here too, the dragon label is printed in a two-dimensional planar form.

However, after the dragon-shaped three-dimensional groove is formed on the inner surface of the mold cavity to be used in the blowing process, and the dragon-shaped figure is accurately attached to the three-dimensional groove, the preform is expanded by air injection into a dragon-shaped three-dimensional groove. The expansion of the surface of the moving preform forms a three-dimensional groove-shaped solid portion on the surface of the container.

In addition, the printed layer 1202 having a dragon-shaped drawing can be converted into a three-dimensional form with a precise three-dimensional effect.

9 (a) to 9 (d) illustrate a process of manufacturing a pressure vessel having an in-mold label according to the present invention.

As shown in Fig. 9 (a), the

molds

310 and 320 for producing the shape of the pressure vessel 100 are spaced apart from each other.

A three-dimensional groove 322 for forming a three-dimensional portion (see FIG. 2, 122) is formed in the cavity inner surface of any one of the molds 320.

When the label 200 is attached to the

molds

310 and 320,

adsorption flow paths

311 and 321 for vacuum adsorption of the label 200 are formed.

With the

molds

310 and 320 open, the label 200 is moved to the label arms 4001 vertical arm 4001 on the

molds

310 and 320 to move the label 200 into the

molds

310 and 320.

In addition, the vertical arm 401 of the label supply device 400 is provided with a pipe 403 which is elastically movable in the horizontal direction (or moves in a telescopic multistage manner).

The pipe 403 also has a vacuum suction force such that the label 200 is attached to the pipe 403.

In this state, when the pipe 403 moves each mold inner surface, the label 200 attached to the pipe 403 is attached to the inside of the mold.

When the label 200 is attached to the inner surfaces of the

molds

310 and 320 by the vacuum suction pressure, the vacuum pressure on the inner surface of the pipe 403 is released.

When the pipe 403 returns to its original state in this state, the label 200 remains attached to the cavity inner surface.

At this time, the boundary surface of the three-dimensional groove 322 and the boundary surface of the printing layer (see Fig. 2, 202) of the label 200 is preferably located to match.

Since the label 200 is a two-dimensional plane, the label 200 does not enter the inner surface of the three-dimensional groove 322 to cover the three-dimensional groove 322.

In this state, the preform 700 enters between the opened

molds

310 and 320 in a state in which the preform 700 is disposed upside down on the lip plate 600.

Then, the bottom forming portion 500 for forming the bottom surface of the pressure vessel 100 is disposed on the upper portion of the mold (310, 320).

As shown in FIG. 9C, the

molds

310 and 320 are closed, and the bottom portion 500 also seals the upper portions of the

molds

310 and 320.

In this state, the lower portions of the

molds

310 and 320 are closed by the lip plate 600.

In this state, a pipe 800 of the air injection device enters the lower portion of the lip plate 600 and blows into the preform 700 for a blowing operation to expand the preform 700.

When air is injected in this state, as shown in FIG. 9 (d), the preform 700 expands and deforms to conform to the shape of the inner surfaces of the

cavity

310 and 320 closed.

In particular, when a part of the surface of the preform 700 is moved toward the three-dimensional groove 322, the surface portion presses the label 200 covering the three-dimensional groove 322, the label 200 is a three-dimensional groove ( 322) to conform to the shape.

As described above with reference to FIGS. 4 and 5, the adhesive layer 203 is formed on the inner surface of the label 200, and the adhesive layer 203 may be melted and adhered in an atmosphere of a predetermined temperature (eg, 50 ° C.) or more, The surface 200 of the hot preform 700 and the temperature of the

molds

310 and 320 melt and adhere to the surface of the preform 700 to firmly fix the label 200 to the surface of the pressure vessel 100.

Then, the three-dimensional portion (see Fig. 2, 122) is formed on the surface of the pressure vessel by the three-dimensional groove 322, the three-dimensional portion 122 is covered by the label 200 to be in shape with the label 200 Therefore, a visual three-dimensional feature can be given to the pressure vessel.

Herein, the pressure of the air injected to form the pressure vessel 100 for implementing the three-dimensional shape is preferably 30 to 40 bar, but is not limited thereto.

In addition, the surface temperature of the

molds

310 and 320 may be maintained at 40 ° C. to 80 ° C. so that the adhesive layer 202 may be easily fused so that the label 200 may be firmly attached to the surface of the pressure vessel 100.

However, this temperature can be adjusted according to the situation outside the above temperature range.

On the other hand, the material constituting the pressure vessel of the present invention is a plastic resin, particularly preferably a PET material suitable for pressure vessels.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but it is only for the purpose of describing the present invention, and those skilled in the art to which the present invention pertains various modifications or equivalents from the detailed description of the invention. It will be appreciated that one embodiment is possible.

Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

Claims

An inlet portion, a body portion in communication with the inlet portion and formed to expand in a blowing manner and larger than the diameter of the inlet portion;

A three-dimensional portion protruded outwardly or recessed inwardly from an outer circumference of the body portion to impart a three-dimensional appearance to at least a portion of the surface of the body portion;

It is attached to at least a portion of the outer peripheral surface of the body portion by the in-mold labeling method, it is provided to cover the three-dimensional portion to form a three-dimensional feeling, characterized in that it comprises a label protruding outwardly or forming a recessed shape in the inner direction in accordance with the contour of the three-dimensional portion A pressure vessel having an in-mold label.
The method of claim 1,

The material of the inlet and body portion is a pressure vessel having an in-mold label to form a three-dimensional feeling, characterized in that consisting of a PET material.
The method of claim 1,

The label may include a substrate portion, an adhesive layer formed on an inner surface of the substrate portion and fused at a temperature higher than a predetermined temperature, and a pattern, pattern, picture, letters, or numbers printed on the outer surface of the substrate portion corresponding to the protruded or recessed portion of the three-dimensional portion. A pressure vessel having an in-mold label for forming a three-dimensional effect, characterized in that it comprises a printed layer.
The method of claim 3,

The boundary of the protruding portion or the recessed portion of the three-dimensional portion and the boundary of the pattern, pattern, picture, letter, or number of the printed layer of the label are provided at corresponding positions. Pressure vessel with de label.
The method of claim 3,

A pressure vessel with an in-mold label, characterized in that at least a portion of the printed layer on which the pattern, pattern or picture or letters or numbers are printed is holographically processed.
The method of claim 3,

A pressure vessel with an in-mold label, characterized in that at least a portion of the printed layer on which the pattern, pattern or picture or letters or numbers are printed has a reflective surface.
The method of claim 1,

The label is embodied in a flat shape without a three-dimensional feeling before being attached to the body portion in the in-mold manner, the in-mold label characterized in that the three-dimensional shape is implemented on the label while the three-dimensional portion of the container is formed in the attachment process through the in-mold Pressure vessel provided with.
Opening a mold having a three-dimensional groove corresponding to the three-dimensional shape to be formed on the surface of the container;

Attaching a label to an inner surface of the mold, wherein the label is attached to the inner surface of the mold such that at least a portion of the label covers the three-dimensional groove;

Positioning the preform of the container under the cavity of the mold;

Closing the mold and inflating the preform by injecting air into the preform at a predetermined range of pressure;

While the expanded preform and the label are attached to each other, the label attached to the surface of the preform is deformed into a three-dimensional shape to fit the three-dimensional groove by the air pressure with the surface of the preform to be expanded;

A method of manufacturing a pressure vessel having an in-mold label comprising: separating the molds from each other, and separating the container with the three-dimensional shape and the label modified according thereto from the mold.
The method of claim 8,

The label may include a substrate portion, an adhesive layer formed on an inner surface of the substrate portion and fused at a temperature higher than a predetermined temperature, and a pattern, pattern, picture, letters, or numbers printed on the outer surface of the substrate portion corresponding to the protruded or recessed portion of the three-dimensional portion. Including printed layers,

Attaching the label to the inside of the mold

And attaching the label to the mold such that the printing layer is positioned in conformity with the three-dimensional groove.
The method of claim 8,

The surface temperature of the said mold is maintained at 40-80 degreeC, The manufacturing method of the pressure container provided with the in-mold label characterized by the above-mentioned.
The method of claim 8,

A method for producing a pressure vessel with an in-mold label, characterized in that the injection pressure range of air is 30 to 40 bar.