KR102528204B1 - Plastic Container Having Target Mark Pattern, Its Raw Materials, Manufacturing Method and Blow Manufacturing Apparatus of the Same - Google Patents

Abstract

A method for forming a plastic container having a target information pattern according to the present invention includes a mold of a blow molding apparatus having a pattern processing mold surface on which a plurality of fine patterns are processed to form a target information pattern in a pattern forming region of a raw material for manufacturing a plastic container. Step (a) of preparing, step (b) of fixing the raw material for manufacturing the plastic container to a mold of the blow molding apparatus, step (c) of inserting the stretch rod of the blow molding apparatus into the inner space of the raw material for manufacturing the plastic container, and the step of and (d) injecting heated air into the inner space through a stretch rod to expand the raw material for manufacturing the plastic container, wherein the pattern forming area of the raw material for manufacturing the plastic container is subjected to the pattern processing. The pattern forming area is expanded beyond a predetermined elongation rate so as to have elongation strength capable of transferring the target information pattern by the mold surface.

Description

Plastic container having target information pattern transcribed, raw material for manufacturing the same, and molding method and blow molding apparatus for manufacturing the same

The present invention relates to a plastic container and a raw material for manufacturing the same, and a molding method and a blow molding apparatus for manufacturing the same, and more particularly, a plastic container having a target information pattern transferred to at least a part of a container body, a raw material for manufacturing the same, and the same. It relates to a molding method and a blow molding apparatus for manufacturing.

In recent years, environmental pollution has been accelerated, and a sense of crisis is increasing, and as a result, various environmental problems occur, and interest in environmental protection is increasing worldwide.

On December 25, 2020, in Korea, as the 'Guidelines for Separate Collection, etc. of Recyclable Resources' came into force, as part of this, colorless PET bottled water bottles, with the labels attached to the circumference of the container removed, were released. The use of labeled water bottles is recommended, and many manufacturers have completed changes to the production system for no-label water bottles and are in the process of releasing products sequentially.

However, there is a problem in that it is difficult to achieve visual differentiation between products because the entire area is formed transparently because there is no product label due to its characteristics.

Until now, a method of expressing the product name and product information by embossing or intaglio through post-processing after manufacturing the shape of a bottled water bottle has been used, but this is a level where it is very difficult for buyers to visually recognize the information. am.

As a result, brand power is decreasing and more and more purchases are made based on price competitiveness, leading to growing concerns for major bottled water brands. It is necessary to establish a differentiated product image.

Therefore, a method for solving these problems is required.

Japanese Patent Laid-Open No. 2021-020474

The present invention has been made to solve the above-mentioned problems of the prior art, and as the easily identifiable target information pattern is transferred to at least a part of the plastic container, it satisfies global environmental protection standards while improving the marketability of the product have a purpose to

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the method of molding a plastic container having a target information pattern transferred thereto comprises a pattern processing mold surface in which a plurality of fine patterns are processed to form a target information pattern in a pattern forming area of a raw material for manufacturing a plastic container. Step (a) of preparing a mold of the blow molding device, step (b) of fixing the raw material for manufacturing the plastic container to the mold of the blow molding device, inserting the stretch rod of the blow molding device into the inner space of the raw material for manufacturing the plastic container and a step (d) of injecting heated air into the inner space through the stretch rod to expand the raw material for manufacturing a plastic container, wherein the step (d) comprises: The pattern forming area is expanded at a predetermined elongation rate or more so that the pattern forming area has a stretching strength at which the target information pattern can be transferred by the pattern processing mold surface.

At this time, in the step (a), the plurality of fine patterns are at least one of diamond cutting, diamond microsealing, ultra-fine lathe processing, electrical discharge machining, femtosecond laser processing, electroplating, X-ray photolithography (LIGA), and anodizing It can be formed using the technique of

In addition, the stretch rod has a discharge port for heating air formed only at the lower end, and in the step (d), the raw material for manufacturing the plastic container can be sequentially expanded from the bottom to the top through the stretch rod.

The blow molding apparatus further includes a moving core provided in the mold to reciprocate the pattern processing mold surface in a lateral direction, and in step (d), heating air is injected into the inner space through the stretch rod. In the process of inflating the raw material for manufacturing the plastic container, the elongation of the pattern forming region can be further increased as the raw material for manufacturing the plastic container is expanded in a state where the moving core is moved toward the pattern forming region.

In addition, the blow molding apparatus for manufacturing a plastic container having a target information pattern of the present invention to achieve the above object is fixed, and a plurality of target information patterns are formed in the pattern formation area of the raw material for manufacturing a plastic container. The raw material for manufacturing a plastic container is inserted into the inner space of a mold having a pattern processing mold surface on which four micro patterns are processed and the raw material for manufacturing a plastic container fixed to the mold is inserted into the inner space and heated air is injected to expand the raw material for manufacturing a plastic container. and a stretch rod that expands the pattern formation area allocated to at least a portion of the area above a predetermined elongation rate to have elongation strength capable of transferring the target information pattern by the pattern processing mold surface.

At this time, the stretch rod may have a discharge port for heating air formed only at the lower end.

In addition, the present invention is provided in the mold, and is formed to reciprocate the pattern processing mold surface in the lateral direction during the expansion process of the raw material for manufacturing the plastic container by the stretch rod, so that the pattern forming area can be selectively contacted. It may further include a moving core formed to further improve elongation of the pattern formation area.

Here, the moving core is provided on the periphery of an area corresponding to the pattern formation area of the raw material for manufacturing the plastic container fixed to the mold, so that the moving core can be reciprocally stroked to change the separation distance from the pattern formation area. It can be.

In addition, the fine patterns may have a state in which they are arranged side by side in the horizontal and vertical directions on the pattern processing mold surface.

Further, the fine pattern may be formed in a column shape having a preset height.

Here, at least a portion of the fine pattern may be formed such that a cross-sectional area decreases from the bottom to the top.

In addition, the raw material for manufacturing a plastic container to which the target information pattern of the present invention is transferred to achieve the above object includes a semi-finished product body having an inner space into which a stretch rod of a blow molding apparatus can be inserted, and the semi-finished product body includes the semi-finished product body. It is allocated to at least a part of the region of the semi-finished product body, and includes a pattern forming region for forming a target information pattern, wherein the pattern forming region has a relatively different thickness than other regions of the semi-finished product body.

In this case, the pattern formation area may be formed relatively thin compared to other areas of the semi-finished product body.

Here, the pattern formation area may be formed in a shape in which an inner side is recessed.

Alternatively, the pattern forming area may be formed in a shape in which an outer surface side is recessed.

Meanwhile, the pattern formation area may be formed relatively thicker than other areas of the semi-finished product body.

Meanwhile, the plastic container to which the target information pattern of the present invention is transferred to achieve the above object includes a container body having an inner space capable of accommodating a liquid, and the container body is allocated to at least a portion of the container body. , and includes a pattern forming area formed to have a state in which the target information pattern is transferred in a state in which it is formed to have a state in which it is expanded at a predetermined elongation rate or higher compared to the raw material for manufacturing the plastic container.

In this case, the target information pattern may include a pattern pattern displaying at least one of a product emblem and information, and a structural color pattern expressing a specific color.

In addition, the structural color pattern may be expressed in the pattern pattern portion, extended to a partial region of the container body including the pattern pattern, or extended to the entire region of the container body including the pattern pattern. .

A plastic container having a target information pattern transferred thereto, a raw material for manufacturing the same, a molding method for manufacturing the same, and a blow molding apparatus of the present invention to solve the above problems are a pattern in which a plurality of fine patterns are processed in a mold of the blow molding apparatus. The processing mold surface is formed to expand the pattern formation area allocated to at least a portion of the raw material for manufacturing the plastic container beyond a predetermined elongation rate so that the target information pattern can be transferred by the pattern processing mold surface, the plastic container itself, It is eco-friendly because the process of printing and attaching the emblem/product information to the container cover or package packaging part is completely eliminated, and it has the advantage of improving marketability and marketing competitiveness by giving a differentiated visual image to each manufacturer.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing each process of a plastic container molding method according to an embodiment of the present invention;
Figure 2 is a view showing the appearance of a raw material for manufacturing a plastic container according to an embodiment of the present invention;
3 is a view showing a state in which a raw material for manufacturing a plastic container is fixed to a blow molding apparatus for manufacturing a plastic container according to an embodiment of the present invention;
4 to 7 are views showing examples of fine patterns processed on a pattern processing mold surface of a blow molding apparatus mold for manufacturing a plastic container according to an embodiment of the present invention;
8 to 11 are views showing a process of molding a plastic container through a blow molding apparatus for manufacturing a plastic container according to an embodiment of the present invention;
12 is a view showing a state in which a moving core is used during the process of molding a plastic container through a blow molding apparatus for manufacturing a plastic container according to an embodiment of the present invention;
13 is a view showing a state of a plastic container manufactured by a plastic container molding method according to an embodiment of the present invention; and
14 to 16 are views showing raw materials for manufacturing plastic containers according to other embodiments of the present invention.

Hereinafter, a preferred embodiment of the present invention in which the object of the present invention can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numeral are used for the same configuration, and additional description thereof will be omitted.

1 is a view showing each process of a plastic container molding method according to an embodiment of the present invention.

As shown in FIG. 1, the plastic container molding method according to an embodiment of the present invention includes a pattern processing mold surface on which a plurality of fine patterns are processed to form a target information pattern in a pattern formation area of a raw material for manufacturing a plastic container. Step (a) of preparing the mold of the blow molding device, step (b) of fixing the raw material for manufacturing a plastic container to the mold of the blow molding device, and inserting the stretch rod of the blow molding device into the inner space of the raw material for manufacturing a plastic container Step (c) and step (d) of expanding the raw material for manufacturing the plastic container by injecting heated air into the inner space through a stretch rod.

At this time, in step (d), the pattern formation area of the raw material for manufacturing plastic containers has a stretching strength at which the target information pattern can be transferred by the pattern processing mold surface, so that the pattern formation area is expanded at a predetermined elongation rate or more. can

Hereinafter, the plastic container molding method according to an embodiment of the present invention will be described in more detail, and raw materials prepared for manufacturing the plastic container and a blow molding apparatus for molding the plastic container will be described together. .

Figure 2 is a view showing the appearance of the raw material 10 for manufacturing a plastic container according to an embodiment of the present invention.

As shown in FIG. 2, the raw material 10 for manufacturing a plastic container according to an embodiment of the present invention includes a semi-finished product body 11, and an internal space 11a formed therein includes a blow molding apparatus in a subsequent process. A stretch rod may be inserted.

At this time, the semi-finished product body 11 is allocated to at least a partial area of the semi-finished product body 11 and includes a pattern forming area 12 for forming a target information pattern.

And, in the plastic container molding method according to an embodiment of the present invention, first, a pattern processing mold in which a plurality of fine patterns are processed to form a target information pattern in the pattern formation area 12 of the raw material 10 for manufacturing the plastic container. A step (a) of preparing a mold of the blow molding apparatus having a surface and a step (b) of fixing the raw material 10 for manufacturing a plastic container to the mold are performed.

3 is a view showing a state in which the raw material 10 for manufacturing a plastic container is fixed to the blow molding apparatus 100 for manufacturing a plastic container according to an embodiment of the present invention.

As shown in FIG. 3, the blow molding apparatus 100 for manufacturing a plastic container according to an embodiment of the present invention includes a mold to which a raw material 10 for manufacturing a plastic container is fixed, and a raw material 10 for manufacturing a plastic container fixed to the mold. It includes a stretch rod 130 that is inserted into the inner space 11a of and injects heated air to expand the raw material 10 for manufacturing a plastic container.

At this time, the mold has a molding space 112 having a shape corresponding to the finally formed plastic container, and the upper mold 110 forming the upper part of the molding space 112 and the lower mold 120 forming the remaining lower part include

In addition, the stretch rod 130 expands the pattern forming area 12 allocated to at least a portion of the raw material 10 for plastic container manufacturing beyond a preset elongation rate so that the target information pattern can be transferred to have elongation strength. there is.

Further, the mold is provided with a pattern processing mold surface 140 on which a plurality of fine patterns for forming a target information pattern is pattern-processed in a predetermined area in the pattern formation area 120 of the raw material 10 for manufacturing a plastic container.

That is, the fine pattern of the pattern processing mold surface 140 is to transfer a target information pattern to the outside of the plastic container after the manufacture of the plastic container is completed.

Such fine patterns can be processed in various shapes and methods, and in FIGS. Examples of 141d) are shown.

As shown in FIGS. 4 to 7 , the fine patterns 141a to 141d may be arranged side by side on the pattern processing mold surface 140 in the horizontal and vertical directions.

In addition, the fine patterns 141a to 141d may be formed in a columnar shape having a predetermined height.

In the case of FIG. 4 , a columnar shape is uniformly arranged on the pattern processing mold surface 140 to have a first interval in the horizontal and vertical directions, has a first height, and is formed in a circle having a cross section having a first width. The fine pattern 141a is exemplified.

Here, the first height of the fine pattern 141a may be 0.15 μm, the first width may be 0.2 μm, and the first interval between the fine patterns 141a may be 0.25 μm. However, since this is merely presented as an example, it is needless to say that the specification of the fine pattern 141a may be variously changed without limitation.

In the case of FIG. 5, the bottom of the cylindrical shape is uniformly arranged to have a predetermined interval in the horizontal and vertical directions on the pattern processing mold surface 140, has a first height, and is formed as a circle having a cross section having a first width. A complex type fine pattern 141b including a structure 141-2 and a hemispherical upper structure 141-1 provided on top of the lower structure 141-2 is exemplified.

And in the case of Figure 6, it is uniformly arranged to have a first interval in the horizontal and vertical directions on the pattern processing mold surface 140, has a first height, and the cross section is formed as a circle having a lower end having a first width, , The fine pattern 141c formed in the form of a truncated cone in which the upper end is formed as a circle having a second width smaller than the width of the lower end and the width gradually decreases at a constant rate from the bottom to the top is exemplified.

Here, the second width may be 0.1 μm.

In addition, in the case of FIG. 7, it is uniformly arranged to have a first interval in the horizontal and vertical directions on the pattern processing mold surface 140, has a second height lower than the first height, and the cross section has a lower end having a first width. The branch exemplified a hemispherical fine pattern 141d formed of a circle.

Here, the second height may be 0.1 μm.

As shown in each example, the fine patterns 141a to 141d may be formed to have a uniform width as a whole, or at least some of them may be formed such that their cross-sectional area decreases from the bottom to the top.

As such, the fine patterns 141a to 141d may be variously formed in consideration of the structural color and pattern shape of the target information pattern, which may be set based on Bragg's Law.

Bragg's Law is a physical law related to diffraction and reflection of light. When light of a certain wavelength is shined at various angles on a material with a periodic structure such as a crystal, strong light reflection does not occur at certain angles. However, at other angles, almost no reflection can be observed. This is because the light scattered by the atoms constituting the material is strengthened or weakened by the repetition of the crystal structure. Bragg's law describes the relationship between the wavelength of light and the width of a crystalline structure, or angle between a reflective surface and a ray of light.

In addition, the plurality of fine patterns 141a to 141d are formed by at least one of diamond cutting, diamond microsealing, ultra-fine lathe processing, electric discharge machining, femtosecond laser processing, electroplating, X-ray photolithography (LIGA), and anodizing. can be formed using

After forming the fine patterns 141a to 141d on the pattern processing mold surface 140 in this way, (b) step of fixing the raw material 10 for manufacturing a plastic container to the mold of the blow molding apparatus, and the raw material for manufacturing a plastic container ( (c) inserting the stretch rod of the blow molding device into the inner space 11a of 10), and injecting heated air into the inner space 11a through the stretch rod to expand the raw material 10 for manufacturing a plastic container ( Step d) is performed respectively.

3 and 8 to 11 are diagrams illustrating a process of molding a plastic container through the blow molding apparatus 100 for manufacturing a plastic container according to an embodiment of the present invention.

In the step (b) of fixing the raw material 10 for manufacturing a plastic container to the mold of the blow molding apparatus 100, the upper end of the raw material 10 for manufacturing a plastic container is fixed to the fixing part 111 provided in the upper mold 110 of the mold. And, through step (c), the stretch rod 130 is inserted into the inner space 11a of the raw material 10 for manufacturing the plastic container.

Also, in step (d), heated air is injected into the inner space 11a through the stretch rod 130 to expand the raw material 10 for manufacturing a plastic container. is in contact with the inner wall surface of the low mold and hardening is performed.

At this time, step (d) is such that the pattern forming area 12 of the raw material 10 for manufacturing a plastic container has a stretching strength at which the target information pattern can be transferred by the pattern processing mold surface 140, so that the pattern forming area 12 ) can be expanded beyond the preset elongation rate.

In the case of the existing blow molding apparatus 100, in order to make the thickness of the container uniform, the sidewall portion is preferentially inflated, so the thickness of the area where the emblem / product information pattern is to be molded is stretched small around 1mm, resulting in a thick final thickness. There is a losing problem. The thicker the thickness of the region and the smaller the elongation rate, the lower the elongation strength (the more polyethylene terephthalate (PET), which is the container material, increases, that is, the greater the elongation rate, the higher the mechanical strength), so the mechanical strength of the pattern is lowered.

In this way, the thicker the thickness of the corresponding area, the less pressure is received by the heated air during the molding process, and the target information pattern is not 100% transferred due to the air trapped inside the container, so the target information pattern of the final molded product is 100% transferred. problems that do not occur.

In order to solve this problem, in the present invention, the stretch rod 130 is heated through the stretch rod 130 in step (d), as shown in FIGS. A method of discharging air downward so that the raw material 10 for manufacturing a plastic container is sequentially expanded from the bottom to the top is used.

Accordingly, according to the present invention, the pattern formation area 12 receives the pressure of the heated air sufficiently, expands beyond the preset elongation rate, and has elongation strength capable of transferring nearly 100% of the pattern by the pattern processing mold surface 140. It can be molded to a thin thickness.

Also, in this process, the pattern forming area 12 increases in mechanical strength as it is cultivated in the direction of stretching due to the chemical characteristics of the PET material.

12 is a view showing how the moving core 150 is used during the process of molding a plastic container through the blow molding apparatus 100 for manufacturing a plastic container according to an embodiment of the present invention.

As shown in FIG. 12, the blow molding apparatus 100 for manufacturing a plastic container according to an embodiment of the present invention is provided in a mold, and in the process of expanding the raw material 10 for manufacturing a plastic container by the stretch rod 130, a pattern is formed. As the processing mold surface 140 is reciprocally moved in the lateral direction, a moving core 150 for further improving the elongation rate of the pattern forming area 12 may be further included.

In particular, in this embodiment, the moving core 150 is provided on the periphery of an area corresponding to the pattern forming area 12 of the raw material 10 for manufacturing a plastic container fixed to the mold, and measures the pattern processing mold surface 140. It is formed to be capable of reciprocating stroke so as to move in the direction.

That is, as shown in FIG. 12, in the process of injecting heated air into the inner space 11a through the stretch rod 130 to expand the raw material 10 for manufacturing a plastic container, the time point at which the pattern forming area 12 is expanded. When the moving core 150 is moved inward to bring the pattern processing mold surface 140 into contact with the pattern forming area 12, the contact area between the pattern processing mold surface 140 and the pattern forming area 12 , and an effect of increasing the external force applied to the pattern forming area 12 is obtained, and thus the elongation rate of the pattern forming area 12 can be further improved.

When the pattern forming area 12 is sufficiently stretched, the moving core 150 may be moved outward so that the pattern forming area 12 is hardened while being in contact with the inner wall surface of the mold.

As described above, the present invention can expand the total flow path of the heated air by forming the discharge port for the heated air only at the lower end of the stretch rod 130 in the molding process through the blow molding apparatus 100, and as a result, for manufacturing plastic containers It is possible to realize the maximum elongation of the raw material 10 and obtain an effect of increasing elongation strength and improving pattern transfer rate through reducing the thickness of the pattern formation region 12 .

13 is a view showing the state of the plastic container 20 manufactured by the plastic container 20 molding method according to an embodiment of the present invention.

As shown in FIG. 13, the plastic container 20 manufactured by the plastic container 20 molding method according to an embodiment of the present invention includes a container body 21 having an internal space 11a capable of accommodating a liquid. include

In addition, the container body 21 is allocated to at least a partial region of the container body 21 and is formed to have a state in which the plastic container 20 is expanded at a predetermined elongation rate or higher compared to the raw material 10 for manufacturing the target information pattern. It includes the pattern formation area 22 having this transferred state.

At this time, the target information pattern may include a pattern pattern 22a displaying the emblem/information of a product and a structural color pattern 22b expressing a specific color.

At this time, the structural color pattern 22b may be expressed only in the pattern pattern 22a, and may be extended and expressed in a part of the container body 21 including the pattern pattern 22a, or the entire container body 21 It can also be extended to the region and expressed.

Meanwhile, FIGS. 14 to 16 are views showing the raw material 10 for manufacturing a plastic container according to other embodiments of the present invention.

As shown in FIGS. 14 to 16, in the semi-finished body 11 of the raw material 10 for manufacturing a plastic container, the pattern forming area 12 is formed to have a relatively different thickness than other areas of the semi-finished product body. may be

In the embodiments shown in FIGS. 14 and 15 , the pattern formation area 12 is relatively thin compared to other areas of the semi-finished product body 11 .

In particular, in the embodiment of FIG. 14 , the outer surface of the pattern forming area 12 is formed in a recessed shape to form the outer recessed portion 14a. In the embodiment of FIG. 15 , the inner surface of the pattern forming area 12 is recessed. It is formed in a formed shape and has a shape in which an inner recessed portion 14b is formed.

In addition, in the embodiment shown in FIG. 16, the pattern formation area 12 is relatively thicker than other areas of the semi-finished product body.

In particular, in the embodiment of FIG. 16, the outer surface side of the pattern forming area 12 is formed in a protruding form to form the outer protruding portion 15, but it is not limited thereto, and the inner surface side of the pattern forming area 12 protrudes or both sides are formed. It may also have a form protruding in a direction.

As described above, according to the present invention, the thickness of the pattern formation region 12 is formed to be different from that of other regions, so that the target pattern can be transferred as intended.

As described above, the preferred embodiments according to the present invention have been reviewed, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope in addition to the above-described embodiments is a matter of ordinary knowledge in the art. It is self-evident to them. Therefore, the embodiments described above are to be regarded as illustrative rather than restrictive, and thus the present invention is not limited to the above description, but may vary within the scope of the appended claims and their equivalents.

10: raw materials for manufacturing plastic containers
11: semi-finished body
11a: inner space
12: pattern formation area
20: plastic container
21: container body
22: pattern formation area
22a: glyph pattern
22b: structural color pattern
100: blow molding apparatus for manufacturing plastic containers
110: hieroglyph
111: fixing part
112: molding space
120: lower brother
130: stretch rod
140: pattern processing mold surface
141a~141d: fine pattern
150: moving core

Claims (21)

(a) preparing a mold of a blow molding apparatus having a pattern processing mold surface on which a plurality of fine patterns are processed to form a target information pattern in a pattern formation area of a raw material for manufacturing a plastic container;
(b) step of fixing the raw material for manufacturing the plastic container to the mold;
(c) inserting a stretch rod of a blow molding device into the inner space of the raw material for manufacturing the plastic container; and
(d) injecting heated air into the inner space through the stretch rod to expand the raw material for manufacturing the plastic container;
Including,
The blow molding apparatus further includes a moving core provided in the mold to reciprocate the pattern processing mold surface in a lateral direction,
In step (d),
The pattern forming area of the raw material for manufacturing the plastic container is expanded beyond a predetermined elongation rate so that the pattern forming area has an elongation strength capable of transferring the target information pattern by the pattern processing mold surface,
In the process of injecting heated air into the inner space through the stretch rod to expand the raw material for manufacturing the plastic container, the raw material for manufacturing the plastic container is expanded while the moving core is moved toward the pattern forming area, thereby forming the pattern To increase the elongation of the formation area more,
Plastic container molding method. According to claim 1,
In step (a),
The plurality of fine patterns are formed using at least one technique of diamond cutting, diamond microsealing, ultra-fine lathe processing, electrical discharge machining, femtosecond laser processing, electroplating, X-ray photolithography (LIGA), and anodizing,
Plastic container molding method. According to claim 1,
The stretch rod has a discharge port for heating air formed only at the lower end,
In step (d),
Through the stretch rod, the raw material for manufacturing the plastic container is sequentially expanded from the bottom to the top,
Plastic container molding method. delete a mold having a pattern processing mold surface on which a raw material for manufacturing a plastic container is fixed and a plurality of fine patterns for forming a target information pattern in a pattern forming region of the raw material for manufacturing a plastic container;
The raw material for manufacturing a plastic container is inserted into the inner space of the raw material for manufacturing a plastic container fixed to the mold and heated air is injected thereto to expand the raw material for manufacturing a plastic container, and the pattern forming area allocated to at least a portion of the raw material for manufacturing a plastic container is defined at a predetermined elongation rate. a stretch rod which expands beyond the above limit to have elongation strength capable of transferring a target information pattern by the pattern processing mold surface; and
a moving core provided in the mold to reciprocate the surface of the pattern processing mold in a lateral direction during the expansion process of the raw material for manufacturing the plastic container by the stretch rod, thereby further improving the elongation rate of the pattern forming area;
including,
Blow molding equipment for manufacturing plastic containers. According to claim 5,
The stretch rod has a discharge port for heating air formed only at the lower end,
Blow molding equipment for manufacturing plastic containers. delete According to claim 5,
The moving core,
Is provided on the periphery of an area corresponding to the pattern formation area of the raw material for manufacturing the plastic container fixed to the mold, and is formed to be capable of reciprocating stroke so as to change the separation distance from the pattern formation area.
Blow molding equipment for manufacturing plastic containers. According to claim 5,
The fine patterns have a state in which they are arranged side by side in the horizontal and vertical directions on the pattern processing mold surface,
Blow molding equipment for manufacturing plastic containers. According to claim 9,
The fine pattern is formed in the shape of a column having a predetermined height,
Blow molding equipment for manufacturing plastic containers. According to claim 10,
At least a portion of the fine pattern is formed such that its cross-sectional area decreases from the bottom to the top.
Blow molding equipment for manufacturing plastic containers. delete delete delete delete delete In the plastic container molded by the blow molding apparatus for manufacturing a plastic container according to any one of claims 5, 6, and 8 to 11,
It includes a container body having an inner space capable of accommodating a liquid,
The container body,
A pattern formation area allocated to at least a partial area of the container body and formed to have a state in which a target information pattern is transferred to a state in which a target information pattern is transferred by being formed to have an expanded state at a predetermined elongation rate compared to raw materials for manufacturing a plastic container,
The pattern formation area,
Formed in an elongated form by the moving core of the blow molding apparatus for manufacturing the plastic container,
plastic container. According to claim 17,
The target information pattern includes a pattern pattern displaying at least one of a product emblem and information, and a structural color pattern expressing a specific color.
plastic container. According to claim 18,
The structural color pattern is expressed in the pattern pattern part,
plastic container. According to claim 19,
The structural color pattern is expressed by extending to a partial area of the container body, including the pattern pattern.
plastic container. According to claim 19,
The structural color pattern is expressed by extending to the entire area of the container body, including the pattern pattern.
plastic container.

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