KR20230140651A - Manufacturing method of paper packing material using eco-friendly paper coating solution and paper packing material manufactured thereby - Google Patents

Abstract

An invention for manufacturing a paper packaging material using the adhesion of an eco-friendly paper coating agent is disclosed. The disclosed method of manufacturing a paper packaging material using adhesion of an eco-friendly paper coating agent includes a) a coating base preparation step of preparing a coating base in which the eco-friendly paper coating agent is formed as a coating layer on at least one side of the paper, and b) setting the coating base to a size suitable for the intended use. A packaging paper manufacturing step of making first, second, and third packaging papers having first, second, and third coating layers, respectively, by cutting them, and c) die cutting each of the first, second, and third packaging papers to produce the product. A wrapping paper processing step of cutting the shape of one or more product storage parts for storage and processing them to be foldable, d) sequentially stacking the first, second, and third wrapping paper, and using a press mold while applying heat to form the first, second, and third wrapping paper. 2, 3 It is characterized by comprising a paper packaging material forming step of combining and pressing the packaging paper to form a three-layer paper packaging material having an accommodation space in the product storage unit.

Description

Method for manufacturing paper packaging material using an eco-friendly coating agent and paper packaging material manufactured thereby

The present invention relates to a method of manufacturing paper packaging using an eco-friendly coating agent and to a paper packaging material manufactured thereby. More specifically, the present invention relates to a method of producing a paper packaging material using an eco-friendly coating agent, and more specifically, to forming a coating layer by applying an eco-friendly special coating solution to paper, and forming a coating layer on the coated surfaces of the first packaging paper and the second packaging paper. Place them facing each other and cross the cutting lines through die cutting. After additionally seating the third wrapper to block the empty space between the first and second wrappers, the first, second and third wrappers are placed in a press mold. It relates to a method of manufacturing paper packaging using an eco-friendly coating agent that can be easily rotted with an eco-friendly coating solution and used as an eco-friendly material by processing the paper packaging material for storing goods by bonding it together while applying heat, and the paper packaging material manufactured thereby.

In general, paper products such as paper cups and paper packaging materials are used as disposable cups or product packaging materials by applying a coating liquid at high temperature and pressure to the surface of paper products. In recent years, paper products have been increasingly used as disposable products.

Previously, plastic cups and plastic packaging products were mainly used instead of paper products, but as environmental pollution problems have emerged, they are being replaced by paper products such as paper cups, which can easily rot when disposed of in nature. Moreover, even plastic straws are being replaced by paper straws, which can easily rot, as they are said to be harmful to the environment.

However, to prevent moisture or oil from penetrating the surface of the paper product and maintain rigidity, a polyester (PE) coating solution or PLA coating solution was mainly applied to at least one side.

However, PE coating liquid and PLA coating liquid coated on the surface of paper have the problem of secreting eco-friendly hormones in hot water and causing environmental pollution because they do not decompose easily in nature when disposed of.

In addition, conventionally, plastic internal storage cases were mainly used for internal storage packaging cases for storing cosmetics or food due to their low price and ease of mold production. Plastics do not rot easily when disposed of in nature, so they are separated and recycled. Recently, as the number of disposal sites has gradually decreased, recycling has become increasingly difficult due to the waste crisis, leading to various problems.

Therefore, there is a need to improve this.

Related background technology includes Korean Patent Publication No. 2016-0122097 (October 21, 2016, title of invention: Eco-friendly composition for coating paper packaging materials and paper packaging materials using the same).

The present invention was created in response to the above-mentioned need. An eco-friendly special coating liquid is applied to paper to form a coating layer, and the coated surfaces of the first and second wrappers face each other and die cutting is performed to cross the cutting lines. After seating, a third wrapping paper is additionally placed to block the empty space of the first and second wrapping paper, and then the first, second and third wrapping paper are glued together while applying heat using a press mold to create a paper packaging material for storing goods. The purpose is to provide a method of manufacturing paper packaging using an eco-friendly coating agent that easily rots together with an eco-friendly coating solution and can be used as an eco-friendly material, and a paper packaging material manufactured thereby.

In order to achieve the above object, the method of manufacturing paper packaging using an eco-friendly coating agent according to the present invention includes a) a coating base preparation step of preparing a coating base in which the eco-friendly paper coating is formed as a coating layer on at least one side of the paper; b) a packaging paper manufacturing step of cutting the coating base paper to a set size according to the purpose and making first, second, and third packaging papers having first, second, and third coating layers, respectively; c) a wrapping paper processing step of cutting each of the first, second, and third wrapping papers into the shape of one or more product storage parts for storing the goods through a die cutting operation and processing them to be foldable; and d) stacking the first, second, and third wrappers sequentially and pressing them with a press mold while applying heat to form a receiving space in the product storage unit. It is characterized in that it includes a paper packaging material forming step of forming a three-layer paper packaging material.

The coating base preparation step includes a composition manufacturing step of mixing each component of the paper coating agent to form a composition; A coating layer application step of coating the paper coating agent in a liquid state on at least one surface of the coating base paper as a coating layer; A coating layer drying step of drying the coating layer by applying hot air to it; And a coating base storage step of wrapping the coating base with the dried coating layer on a roll and storing it.

In the coating base preparation step, the coating layer contains ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof, acrylic emulsion, inorganic material, ethylene vinyl acetate emulsion, starch, silica powder, and water.

The coating layer contains 7 to 11% by weight of ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof, 5 to 7% by weight of acrylic emulsion, 5 to 9% by weight of inorganic matter, 5 to 13% by weight of ethylene vinyl acetate emulsion, and 7% by weight of starch. It is characterized in that it contains ~9% by weight, 11~15% by weight of silica powder, and 35~60% by weight of water.

The wrapping paper processing step includes a first die cutting pressing step of forming a first cutting line and a first side fold line on the first wrapping paper through a die cutting operation to form the article storage portion; A second die cutting pressing step of forming a second cutting line and a second side fold line on the second packaging paper through a die cutting operation so that the first cutting line and the first side fold line of the first packaging paper are offset from each other; And pressing a third die cut to form a third cutting line and top and bottom fold lines by die cutting on the third wrapper to block the side open space of the article storage unit formed by overlapping the first and second wrappers. It is characterized in that it includes a step;

In the paper packaging material forming step, the first coating layer of the first packaging paper and the second coating layer of the second packaging paper are stacked facing each other and overlapped, and the third coating layer is stacked on the upper side so that the third coating layer faces downward. Lamination step; And by applying heat or high-frequency rupture to the first packaging paper, the second packaging paper, and the third packaging paper, the first, second, and third cutting lines are separated, respectively, and the first and second side fold lines and the top and bottom folds are formed. Lamination for processing paper packaging material by bonding the first, second, and third coating layers of the first, second, and third packaging papers by heat fusion, respectively, so that the line is folded to form an accommodation space in the product storage unit. It is characterized in that it includes a storage portion forming step.

The product storage unit includes a first side bottom support part formed by a first cutting line in the first packaging paper and provided in the receiving space of the product storage unit to be folded by a first side fold line; A second cutting line is formed in the second wrapping paper so that the second coating layer partially overlaps and is heat-sealed to the first coating layer of the first side bottom support while facing in the opposite direction to the first side bottom support, and the first coating layer is formed by a second cutting line. a second side floor support provided in the receiving space of the article storage unit to be folded by a second side fold line corresponding to the side fold line; The third wrapping paper is folded by the top fold line, and the third coating layer is partially adhered to the first and second side bottom supports to form the upper side of the receiving space formed by the first and second side bottom supports. Blocking upper surface support; And the lower side of the receiving space formed by the first and second side bottom supports is folded by the bottom fold line of the third packaging paper, and the third coating layer is partially adhered to the first and second side bottom supports. Characterized in that it includes a lower support portion for blocking.

A plurality of first side floor supports are formed alternately on one side of the product storage unit and the other side of the product storage unit by the first zigzag cutting line in the first packaging, and the second side bottom supports are It is characterized in that it is formed alternately on one side and the other side of the article storage unit by the zigzag-shaped second cutting line on the second wrapping paper to correspond to the first cutting line on the first wrapping paper.

In the step of forming the lamination and product storage portion, the edge of the paper packaging material formed by lamination of the first, second, and third wrapping papers while being pressed with the press mold is further provided with an edge folding part that can be folded, and the edge folding part is An upper fold portion that forms the upper edge of the paper packaging material and is folded by the upper fold line; a lower fold portion that forms a lower edge of the paper packaging material and is provided on an opposite side of the upper fold portion and is folded by a lower fold line; a left fold portion that forms the left edge of the paper packaging material and is folded by a left fold line; and a right fold part that forms the right edge of the paper packaging material and is provided on the opposite side of the left fold part and is folded by the right fold line.

In order to achieve the above object, a paper packaging material manufactured by a paper packaging material manufacturing method using an eco-friendly coating agent according to the present invention is provided.

The method of manufacturing paper packaging using an eco-friendly coating agent according to the present invention and the paper packaging produced thereby include forming a coating layer by applying an eco-friendly special coating liquid to paper, and die cutting the coated surfaces of the first and second packaging papers facing each other. Through the work, the cutting lines are intersected, and the third wrapper is additionally placed to block the empty space of the first and second wrappers. Then, the first, second, and third wrappers are integrated by applying heat using a press mold. By bonding and processing paper packaging materials for storing items, it can be used as an eco-friendly material as it rots easily with eco-friendly coating liquid.

Figure 1 is a flow chart of a method for manufacturing paper packaging using an eco-friendly coating agent according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the upper and lower cases for storing goods in paper packaging using an eco-friendly coating agent according to an embodiment of the present invention.
Figure 3 is a perspective view showing the state of cutting the coating base paper to manufacture paper packaging material using an eco-friendly coating agent according to an embodiment of the present invention.
Figure 4 is a diagram showing the state of processing the first, second, and third packaging materials through a die cutting process and a fold line process to manufacture paper packaging material using an eco-friendly coating agent according to an embodiment of the present invention.
Figure 5 is an exploded perspective view before laminating the first, second, and third wrapping paper with a press mold to manufacture paper packaging material using an eco-friendly coating agent according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along line AA of FIG. 2, showing the first, second, and third wrapping paper being pressed with a press mold and disassembled to manufacture paper packaging material.
Figure 7 is a longitudinal cross-sectional view of a state in which some edges of the first, second, and third packaging papers were pressed and separated with a press mold to manufacture paper packaging using the adhesion of an eco-friendly coating agent according to an embodiment of the present invention.
Figure 8 is an enlarged perspective view of the main part of the article attachment part according to part "B" of Figure 2.

Hereinafter, a method for manufacturing paper packaging material using an eco-friendly coating agent according to an embodiment of the present invention and the paper packaging material manufactured thereby will be described with reference to the attached drawings.

In this process, the thickness of lines or sizes of components shown in the drawing may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a flowchart of a method of manufacturing paper packaging using an eco-friendly coating agent according to an embodiment of the present invention, and Figure 2 is a flow chart of the upper and lower parts for storing goods in a paper packaging material using an eco-friendly coating agent according to an embodiment of the present invention. It is an exploded perspective view of the case, and Figure 3 is a perspective view showing the state of cutting the coating base paper to manufacture paper packaging using an eco-friendly coating agent according to an embodiment of the present invention, and Figure 4 is an eco-friendly paper packaging according to an embodiment of the present invention. It is a diagram showing the state of processing the first, second, and third packaging materials through a die cutting process and a fold line process to manufacture paper packaging materials using a coating agent, and Figure 5 shows the eco-friendly coating agent according to an embodiment of the present invention. It is an exploded perspective view before laminating the first, second, and third packaging materials with a press mold to manufacture paper packaging materials using , and Figure 6 is a cross-sectional view along the line A-A of Figure 2, in which the first, second, and second packaging materials are used to manufacture paper packaging materials. , It is a cross-sectional view of the third wrapping paper in a state in which it was pressed with a press mold and disassembled, and Figure 7 is a cross-sectional view of the first, second, and third wrapping paper for manufacturing paper packaging using adhesion of an eco-friendly coating agent according to an embodiment of the present invention. It is a longitudinal cross-sectional view of a state in which part of the edge has been pressed with a press mold and separated, and Figure 8 is an enlarged perspective view of the main part of the article attachment part according to part "B" of Figure 2.

Referring to Figures 1 to 8, the method of manufacturing paper packaging using an eco-friendly coating agent according to an embodiment of the present invention includes a coating base preparation step (S10), a packaging paper processing step (S20), a paper packaging material forming step (S30), and Includes a paper packaging material supply step (S40).

Referring to Figure 2, the paper packaging material 10 according to an embodiment of the present invention is used as a packaging material for the article 8 by manufacturing a coated base paper 2 on which a coating layer 200 is applied to the surface of the paper. When packaging paper consisting of a polyethylene coating layer was used, there was a problem that biodegradability was significantly reduced and it was difficult to decompose in nature, polluting the natural environment. However, the paper packaging material 10 according to an embodiment of the present invention has an upper and lower case. (4) It is installed in (6) and used as an internal storage case to store items (8) such as cosmetics and food containers. By replacing the internal storage case, which was previously used with synthetic resin material that does not rot easily, with paper material, paper and In addition, paper coating is also used as an eco-friendly material, so it has the advantage of preventing environmental pollution when discarded.

The coating base preparation step (S10) is a step of preparing a coating base paper (2) in which an eco-friendly paper coating agent is formed as a coating layer (200) on at least one side of the paper.

The coating base preparation step (S10) includes the composition manufacturing step (S12) of mixing each component of the paper coating agent to form a composition, and applying the paper coating agent in a liquid state to at least one side of the coating base paper (2) as a coating layer (200). A coating layer application step (S14) for coating, a coating layer drying step (S16) for drying the coating layer 200 by applying hot air, and a coating base storage step for storing the coating base paper (2) on which the coating layer 200 is dried by winding it on a roll. Includes (S18).

In the coating layer application step (S14), the eco-friendly coating layer 200 is coated on at least one side of the coating base paper 2, so that the rigidity of the paper packaging material 10 can be maintained and can be used as a replacement for plastic. In nature, the coating layer 200 is biochemically decomposed after a certain period of time, so it can be used as an eco-friendly paper coating that does not pollute nature.

When coating the paper coating agent on at least one side of the coating base paper 2 in the coating step (S14), it is advantageous to maintain the set temperature and constant time.

The drying step (S16) is performed at a temperature range of 80 to 150 degrees for 15 to 120 minutes.

The coating layer 200 is characterized by containing ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof, acrylic emulsion, inorganic material, ethylene vinyl acetate emulsion, starch, silica powder, and water.

Ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof is neutralized and dispersed by mixing with water to be used as an aqueous dispersion. If this component is excessive, the water dispersion characteristics become too excessive and must be maintained appropriately. If this component is properly maintained, EJLF can maintain excellent water resistance, oil resistance, heat adhesiveness, and alkali dissociation. Water contains a small amount of alkaline components, which can improve dissociation when mixed with each component.

The acrylic emulsion maintains hardness in the coating layer 200.

Inorganic substances are used to keep the rough surface of the coating base paper (2) flat, and mainly include clay, calcium carbide, and titanium dioxide.

Ethylene vinyl acetate emulsion can provide ductility to the coating layer 200 and improve decomposability upon disposal.

Starch is used to improve thermal adhesion and water resistance of the coating layer 200, and oxidized starch is mainly used.

Silica powder is in the form of a fine powder, and can maintain viscosity in the coating layer 200 to further improve thermal adhesive strength.

Water plays a role in properly dispersing each ingredient and helping them mix well.

The coating layer 200 contains 7 to 11% by weight of ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof, 5 to 7% by weight of acrylic emulsion, 5 to 9% by weight of inorganic material, and 5 to 13% by weight of ethylene vinyl acetate emulsion. , It is characterized in that it contains 7 to 9% by weight of starch, 11 to 15% by weight of silica powder, and 35 to 6O% by weight of water.

The wrapping paper processing step (S20) is a first die forming a first cutting line 312 and a first side fold line 314 on the first wrapping paper 110 through a die cutting operation to form the product storage unit 300. In the cutting pressing step (S22), a second cut is made on the second wrapping paper 120 through a die cutting operation so that the first cutting line 312 and the first side fold line 314 of the first wrapping paper 110 are offset from each other. The second die cutting pressing step (S24) to form the line 322 and the second side fold line 324, and the article storage portion 300 formed by overlapping the first and second wrapping papers 110 and 120. ) A third die cutting pressing step (S26) of forming a third cutting line 331 and top and bottom fold lines 332 and 342 by die cutting on the third packaging paper 130 to block the side open space of ). Includes.

In the paper packaging material forming step (S30), the first coating layer 210 of the first packaging paper 110 and the second coating layer 220 of the second packaging paper 120 are stacked facing each other and the third coating layer 230 is overlapped. A wrapping paper stacking step (S32) in which the third wrapping paper 130 is stacked on the upper side so as to face downward, and heat or high-frequency heat is applied to the first wrapping paper 110, the second wrapping paper 120, and the third wrapping paper 130. While applying, the first, second, and third cutting lines (312, 322, and 331) are separated, respectively, and the first and second side fold lines (314) (324) and the top and bottom fold lines (332) ( As 342) is folded, the first, second, and third coating layers 210, 220 of the first, second, and third packaging papers 110, 120, and 130 are folded to form a receiving space in the article storage unit 300. ) It includes a lamination and storage portion forming step (S34) in which the paper packaging material 10 is processed by laminating each of the 230 by heat fusion.

In the wrapping paper stacking step (S32), the third wrapping paper 130 is placed on the lower side with the first coating layer 210 of the first wrapping paper 110 and the second coating layer 220 of the second wrapping paper 120 overlapped facing each other. You may. In this case, the third coating layer 230 of the third packaging paper 130 is adhered to the back side of the first packaging paper 110.

Additionally, the third wrapping paper 130 may be placed between the first wrapping paper 110 and the second wrapping paper 120 in the wrapping paper stacking step (S32). In this case, the second coating layer 210 of the first packaging paper 110 is directed upward, and the third coating layer 230 of the third packaging paper 130 is directed downward on the upper side of the first packaging paper 110. Since the second coating layer 120 of the second packaging paper 120 is laminated on the upper side of the third packaging paper 130 facing downward, the second coating layer 210 of the first packaging paper 110 and the second packaging paper are stacked. The second coating layer 220 of (120) may be configured to be bonded to each other through the empty space of the third packaging paper 130.

The product storage unit 300 is formed by the first cutting line 312 in the first packaging paper 110 and is provided in the receiving space of the product storage unit 300 to be folded by the first side fold line 314. A portion of the second coating layer 220 is formed on the first coating layer 210 of the first side bottom support portion 310 and the first side bottom support portion 310 facing in the opposite direction to the first side bottom support portion 310. The product storage portion ( It is folded by the second side bottom support portion 320 provided in the receiving space of the 300 and the top fold line 332 of the third packaging paper 130, and the first and second side bottom support portions 310 and 320 ) and a top support portion 330 that blocks the upper side of the receiving space formed by the first and second side bottom support portions 310 and 320 by partially adhering the third coating layer to the bottom support portion 330, and the lower surface of the third packaging paper 330. It is folded by the fold line 342, and the third coating layer 230 is partially adhered to the first and second side bottom supports 310 and 320 to form the first and second side bottom supports 310 and 320. It includes a lower surface support portion 340 that blocks the lower side of the receiving space formed by.

The first side bottom support portion 310 alternates between one side of the article storage section 300 and the other side of the article storage section 300 by a zigzag-shaped first cutting line 312 in the first packaging paper 110. Formed in large numbers.

The second side bottom support portion 320 is formed by a zigzag-shaped second cutting line 322 in the second wrapping paper 120 to correspond to the first cutting line 312 of the first wrapping paper 110. ) can be formed by alternating one side and the other side.

The first side bottom support portion 310 and the second side bottom support portion 320 are formed to correspond in opposite directions to overlap and support the bottom and sides of the receiving space of the article storage portion 300.

The first side bottom support portion 310 and the second side bottom support portion 320 overlap each other at a set width (a) to form the bottom and sides of the receiving space. As a result, the accommodation space of the product storage unit 300 is left as an open space on the upper and lower sides, which may not be aesthetically pleasing. However, through the upper support part 330 and the lower support part 340 of the third packaging paper 130, By blocking the empty open space in the accommodation space of the article storage unit 300, the accommodation space appears neat and the aesthetics of the paper packaging material 10 can be improved.

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 2, showing the first, second, and third wrapping paper being pressed with a press mold and disassembled to manufacture paper packaging material.

As shown in FIG. 6, the first side bottom support portion 310 is repeatedly formed to cross in the vertical longitudinal direction so as to bend downward from the left side of the first packaging paper 110 from the left side to the right side or downwardly from the right side to the left side. The two side bottom supports 320 are repeatedly formed to alternate in the vertical longitudinal direction so that the second packaging paper 120 is bent downward from right to left or downward from left to right.

A portion of the first coating layer 210 formed on the upper surface of the first side bottom support 310 is heat-sealed to the second coating layer 220 formed on the bottom of the second side bottom support 320, thereby forming the left and right sides of the article 8. It forms an accommodation space that supports the sides and bottom. The product storage unit 300 is formed by the upper mold member 510 and the lower mold member 520 of the press mold 500, which will be described later.

The first and second side bottom supports 310 and 320, respectively located in the leftmost product storage section 300 and the rightmost product storage section 300, are located at the first and second side floor supports 310 and 320, respectively, based on the center line of the paper packaging material 10. The second cutting lines 312 and 322 and the first and second side fold lines 312 and 324 may be formed to be left and right symmetrical to each other.

In addition, the first and second side bottom supports 310 and 320 located in the leftmost article storage section 300 and the rightmost article storage section 300 are located at the first and second cutting lines 312 and 322. ) may be formed by alternating between the left and right sides in a zigzag shape as it moves along the longitudinal direction of the upper and lower sides of the paper packaging material 10. Of course, the first and second side bottom supports 310 and 320 located in the leftmost article storage section 300 and the rightmost article storage section 300 are the first and second side floor supports 310 and 320 of the article storage section 300 in the middle portion. , Like the second side bottom support portions 310 and 320, they may be formed on only one side of the left or right side.

The width (a) of the overlapping portion of the first side floor support portion 310 and the second side bottom support portion 320 has a gap in the range of 10 to 50% of the width (b) of the accommodation space of the article storage portion 300. It is characterized by Of course, the width of the accommodation space of the left and right goods storage units 300 among the goods storage units 300 may be formed to be larger than the width of the accommodation space of the goods storage unit 300 in the middle part.

On the other hand, when the width (a) of the overlapping portion of the first side bottom support portion 310 and the second side bottom support portion 320 is too narrow compared to the width (b) of the accommodation space of the article storage portion 300, the first side bottom support portion 310 and the second side bottom support portion 320 Since the overlapping support force of the floor support unit 310 and the second side floor support unit 320 is weak, the first side floor support unit 310 and the second side floor support unit 320 can be easily separated, and the first side floor support unit 310 ) If the width (a) of the overlapping portion of the second side bottom support portion 320 is too wide compared to the width (b) of the accommodation space of the article storage unit 300, the accommodation space of the article storage unit 300 becomes narrow. There are problems, so the overlap ratio needs to be adjusted appropriately.

In the lamination and product storage portion forming step (S34), the first, second, and third wrapping papers 110, 120, and 130 are laminated to the edge of the paper packaging material 10 while being pressed with the press mold 500. It is further provided with an edge folding portion 400 that can be folded.

The edge fold portion 400 forms the upper edge of the paper packaging material 10, the upper fold portion 410 folded by the upper fold line 412, and the lower edge of the paper packaging material 10, A lower folding part 420 is provided on the opposite side of the upper folding part 410 and is folded by the lower folding line 422, and forms the left edge of the paper packaging material 10, and is folded by the left folding line 432. It includes a left folding portion 430 and a right folding portion 40 that forms the right edge of the paper packaging material 10 and is provided on the opposite side of the left folding portion 430 and folded by the right folding line 442. do.

In the lamination and product storage portion forming step (S34), the press mold 500 includes an upper mold member 510 on which a plurality of pressing protrusions 512 are formed to protrude to form a receiving space for the product storage portion 300, It includes a lower mold member 520 in which a plurality of recessed grooves 522 corresponding to the pressing protrusions 512 of the upper mold member 510 are formed.

The upper mold member 510 is shown schematically and briefly, but is equipped with a press mold lifting and lowering drive mechanism (not shown) to move up and down to form the first wrapping paper 110 and the second wrapping paper 120 between the lower mold member 520. ) and the third wrapping paper 130 are continuously pressed and the first coating layer 210, the second coating layer 220, and the third coating layer 230 are heat-sealed and laminated using high-frequency rupture heat to form the product storage unit 300 and the border. A folded portion 400 may be formed.

The method of manufacturing paper packaging using an eco-friendly coating agent according to an embodiment of the present invention may further include a paper packaging material supply step (S40) of packaging the paper packaging material 10 and supplying it to the place of use.

Referring to Figures 1 to 8, a paper packaging material 10 manufactured by the manufacturing method of a paper packaging material using adhesion of an eco-friendly paper coating agent according to an embodiment of the present invention described above is manufactured.

The paper packaging material 10 is shown as being used as an internal container for storing items, but it can be used as a paper container for food storage as well as various types of storage containers.

Therefore, the method for manufacturing paper packaging using an eco-friendly coating agent according to an embodiment of the present invention and the paper packaging produced thereby include forming a coating layer by applying an eco-friendly special coating solution to paper, and forming a coating layer on the coated surfaces of the first and second packaging papers. Place them facing each other and cross the cutting lines through die cutting. After additionally seating the third wrapper to block the empty space between the first and second wrappers, the first, second and third wrappers are placed in a press mold. By processing paper packaging material for storing goods by bonding it together while applying heat, it can be used as an eco-friendly material as it rots easily with eco-friendly coating liquid.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand.

Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

2: Coating base paper 4: Upper case
6: Lower case 8: Goods
10: Paper packaging material 110: First packaging paper
120: second wrapping paper 130: third wrapping paper
200: coating layer 210: first coating layer
220: second coating layer 230: third coating layer
300: Goods storage section 310: First side bottom support section
312: first cutting line 314: first side fold line
320: Second side bottom support 322: Second cutting line
324: Second side fold line 330: Top support
331: Third cutting line 332: Top fold line
340: Bottom support 342: Bottom fold line
400: Edge folding part 410: Upper folding part
412: upper fold line 420: lower fold part
422: Lower fold line 430: Left fold part
432: Left fold line 440: Right fold part
442: Right fold line 500: Press mold
510: Upper mold member 512: Pressure protrusion
520: Lower mold member 522: Recessed groove
S10~S40: These are the steps in the manufacturing method of paper packaging using eco-friendly coating agents.

Claims (10)

a) a coating base preparation step of preparing a coating base in which an eco-friendly paper coating agent is formed as a coating layer on at least one side of the paper;
b) a packaging paper manufacturing step of cutting the coating base paper to a set size to suit the purpose and making first, second, and third packaging papers having first, second, and third coating layers, respectively;
c) a wrapping paper processing step of cutting each of the first, second, and third wrapping papers into the shape of one or more product storage parts for storing the goods through a die cutting operation and processing them to be foldable; and
d) Layering the first, second, and third wrapping paper sequentially and pressing the first, second, and third wrapping paper with a press mold while applying heat to have an accommodation space in the product storage unit 3. A paper packaging material forming step of forming a layered paper packaging material;
A method of manufacturing paper packaging using an eco-friendly coating agent, comprising:
According to clause 1,
The coating base preparation step is,
A composition manufacturing step of mixing each component of the paper coating agent to form a composition;
A coating layer application step of coating the paper coating agent in a liquid state on at least one surface of the coating base paper as a coating layer;
A coating layer drying step of drying the coating layer by applying hot air to it; and
A coating base storage step of storing the coating base with the dried coating layer wrapped around a roll;
A method of manufacturing paper packaging using an eco-friendly coating agent, comprising:
According to clause 1,
In the coating base preparation step, the coating layer is an eco-friendly coating agent comprising ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof, acrylic emulsion, inorganic material, ethylene vinyl acetate emulsion, starch, silica powder, and water. Method of manufacturing paper packaging using .
According to clause 3,
The coating layer contains 7 to 11% by weight of ethylene-acrylic acid or ethylene-methacrylic acid copolymer individually or a mixture thereof, 5 to 7% by weight of acrylic emulsion, 5 to 9% by weight of inorganic matter, 5 to 13% by weight of ethylene vinyl acetate emulsion, and 7% by weight of starch. A method of manufacturing paper packaging material using an eco-friendly coating agent, characterized in that it contains ~9% by weight, 11~15% by weight of silica powder, and 35~60% by weight of water.
According to clause 1,
The packaging paper processing step is,
A first die cutting pressing step of forming a first cutting line and a first side fold line on the first package through a die cutting operation to form the article storage portion;
A first die cutting pressing step of forming a second cutting line and a second side folding line on the second wrapping paper through a die cutting operation so that the first cutting line and the first side folding line are offset from each other with respect to the first cutting line and the first side folding line on the first wrapping paper; and
A third die cutting pressing step of forming a third cutting line and upper and lower fold lines by die cutting on the third wrapping paper to block the side open space of the article storage unit formed by overlapping the first and second wrapping paper. ;cast
A method of manufacturing paper packaging using an eco-friendly coating agent, comprising:
According to clause 5,
The paper packaging material forming step is,
A wrapping paper stacking step of stacking the third wrapping paper on the upper side so that the first coating layer of the first wrapping paper and the second coating layer of the second wrapping paper are stacked facing each other and overlapping, with the third coating layer facing downward; and
By applying heat or high-frequency rupture to the first packaging paper, the second packaging paper, and the third packaging paper, the first, second, and third cutting lines are separated, respectively, and the first and second side fold lines and the top and bottom fold lines are separated. As this is folded, the first, second, and third coating layers of the first, second, and third packaging papers are respectively bonded and laminated by heat fusion to form a receiving space in the product storage unit, thereby processing and storing the paper packaging material. part formation stage;
A method of manufacturing paper packaging using an eco-friendly coating agent, comprising:
According to claim 1 or 6,
The goods storage department,
a first side bottom support portion formed by a first cutting line in the first packaging paper and provided in the receiving space of the article storage portion to be folded by a first side fold line;
A second cutting line is formed in the second wrapping paper so that the second coating layer partially overlaps and is heat-sealed to the first coating layer of the first side bottom support while facing in the opposite direction to the first side bottom support, and the first coating layer is formed by a second cutting line. a second side floor support provided in the receiving space of the article storage unit to be folded by a second side fold line corresponding to the side fold line;
The third wrapping paper is folded by the top fold line, and the third coating layer is partially adhered to the first and second side bottom supports to form the upper side of the receiving space formed by the first and second side bottom supports. Blocking upper surface support; and
The third wrapping paper is folded by the bottom fold line, and the third coating layer is partially adhered to the first and second side bottom supports to block the lower side of the receiving space formed by the first and second side bottom supports. The lower support part;
A method of manufacturing paper packaging material using an eco-friendly coating agent, characterized in that it contains.
According to clause 7,
A plurality of first side bottom supports are formed alternately on one side of the product storage unit and the other side of the product storage unit by the zigzag-shaped first cutting line in the first packaging paper,
The second side bottom support portion is formed alternately on one side and the other side of the article storage unit by the zigzag second cutting line in the second wrapping paper to correspond to the first cutting line in the first wrapping paper. A method of manufacturing paper packaging using an eco-friendly coating agent.
According to clause 6,
In the step of forming the lamination and product storage portion, the edge of the paper packaging material formed by lamination of the first, second, and third wrapping papers while being pressed with the press mold is further provided with an edge folding portion to enable folding,
The border fold part,
an upper fold portion that forms an upper edge of the paper packaging material and is folded by an upper fold line;
a lower fold portion that forms a lower edge of the paper packaging material and is provided on an opposite side of the upper fold portion and is folded by a lower fold line;
a left fold portion that forms the left edge of the paper packaging material and is folded by a left fold line; and
A right fold portion that forms the right edge of the paper packaging material and is provided on the opposite side of the left fold portion and is folded by the right fold line.
A method of manufacturing paper packaging material using adhesion of an eco-friendly paper coating agent, comprising:
A paper packaging material manufactured by the method of manufacturing a paper packaging material using an eco-friendly coating agent according to any one of claims 1 to 9.

Images