Manufacturing method of a buffer tray for packaging made of paper material

Abstract

The present invention relates to a method for manufacturing a paper-based packaging buffer tray, which is eco-friendly as it involves laminating multiple sheets of paper, forming longitudinal slits in some of the sheets, and forming wrinkles in others, and then pressurizing the sheets using a mold, and overcomes the drawback of difficulty in molding existing paper-based buffer trays. The present invention also relates to a method for manufacturing a paper-based buffer tray, and a buffer tray manufactured by the method. For this reason, the present invention is characterized by including a raw material preparation step of preparing raw material for manufacturing buffer trays in which multiple sheets of paper are stacked, a molding preparation step of preparing at least one mold corresponding to the shape and size of the product to be packaged, and a molding step of pressing and molding the raw material using the mold.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a cushioning tray for packaging made of paper material and a cushioning tray manufactured thereby. More specifically, it relates to a method for manufacturing a cushioning tray for packaging made of paper material, in which paper processed so that no wrinkling or tearing occurs during the process of forming it to correspond to the shape of a bottle to be packaged is appropriately cut and used, and most parts are press-formed in chronological order according to the sequence, and a cushioning tray manufactured thereby.

Background Art

[0002] Generally, liquid products such as cosmetics are often put into glass bottles or plastic bottles for convenience in distribution, aesthetic, and advertising purposes, and then packaged in boxes and distributed. However, in the case of bottles containing such products, especially glass bottles, there is a high risk of breakage when they collide with each other during the movement process. Therefore, it is common to add a cushioning tray to the packaging box. When using a cushioning tray to additionally package a glass bottle, it is possible to form a separation space between the glass bottles to prevent them from colliding with each other, and at the same time, it can perform a cushioning role of mitigating the impact transmitted from the outside.

[0003] Such cushioning trays are generally manufactured from soft plastics, pulp, styrofoam, etc. However, in recent years, with the increasing severity of environmental problems, there are many institutional and environmental constraints on using such materials. For example, laws regarding resource conservation and promotion of recycling stipulate restrictions on the materials and structures of such packaging materials, and it is expected that such regulations and restrictions will continue or be strengthened in the future.

[0004] Therefore, it can be said that in fact, there is an urgent need to develop a buffer tray using environmentally friendly materials in response to such a trend. On the other hand, as a material to replace this, a paper material is most strongly proposed, but in the case of paper, there are difficulties in handling such as forming it into the required shape or manufacturing it to have the required strength, and at the same time, overcoming these difficulties and developing a technology for mass-producing a buffer tray made of paper material have emerged as an immediate issue.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention was devised to solve the existing problems as described above. The purpose is to provide a manufacturing method of a packaging buffer tray made of paper, which is formed by using a mold on a raw material in which an inner paper and at least one or more upper papers are adhered and laminated by an adhesive.

[0006] In addition, the inner paper is cut along the length direction, and wrinkles, embossing, E-flute, etc. are formed on the upper paper, and it is not torn or destroyed even when pressed by a mold, so as to be able to form the raw material as required. The purpose is to provide a manufacturing method of a buffer tray.

[0007] In addition, the purpose is to provide a manufacturing method of a buffer tray that includes a plurality of molds, and each mold is equipped with a spring having a different elastic force from each other, so that it can be pressure-molded according to a preset order and the raw material can be molded without being destroyed.

Means for Solving the Problems

[0008] In order to solve the problems as described above, The manufacturing method of a packaging buffer tray made of paper according to the present invention includes a raw material preparation step of preparing a raw material for manufacturing a buffer tray in which a plurality of papers are laminated, a molding preparation step of preparing at least one or more molds corresponding to the shape and size of the product to be packaged, and a molding step of pressing and molding the raw material with the mold.

[0009] In addition, the raw material is characterized in that the inner paper and at least one or more upper papers are adhered and laminated by an adhesive.

[0010] In addition, the inner paper is kraft paper, and the inner paper is characterized in that it is cut along the length direction of the product to be packaged.

[0011] In addition, the inner paper is characterized in that it is cut in a zigzag manner alternately in both side directions along the length direction.

[0012] On the other hand, the upper paper is characterized in that it is paper in which at least one of wrinkles, E-flute, and embossing is formed.

[0013] In addition, the adhesive is characterized in that it contains starch.

[0014] In addition, in the forming preparation stage, at least two or more molds are prepared, and the molds are characterized in that springs are installed.

[0015] In addition, in the forming stage, a plurality of molds are operated in a preset order and the raw material is formed according to the time difference.

[0016] On the other hand, the paper-based packaging buffer tray according to the present invention is characterized in that it is manufactured by any one of the above-described manufacturing methods.

Advantages of the Invention

[0017] The manufacturing method of the paper-based packaging buffer tray as described above and the buffer tray manufactured thereby provide a method for manufacturing an environmentally friendly buffer tray by manufacturing the buffer tray using paper as the raw material, and disclose a method for manufacturing the raw material by laminating a plurality of papers in order to overcome the disadvantage of difficult forming, which has been an obstacle to the manufacturing of buffer trays using existing paper.

[0018] In particular, the paper to be laminated is composed of an inner paper and at least one or more upper papers. The inner paper is formed with grooves that are cut in a zigzag pattern alternately in both directions along the length direction, if necessary, along the length direction. Therefore, during the process of being shaped by an external force, the phenomenon that the inner paper opens to both sides and tears or splits along the grooves can be prevented.

[0019] In addition, the upper paper includes wrinkles, embossing, E-flute, etc., so that elasticity and softness are imparted, and when the raw material is shaped by an external force, the paper can naturally stretch and the phenomenon of tearing or splitting does not occur.

[0020] That is, the object of the present invention is to provide a manufacturing method of a buffer tray that can be shaped according to the required shape without tearing or splitting the paper by adding a process of specially processing the paper as described above, and a buffer tray manufactured thereby.

[0021] In addition, when forming a product placement space, a plurality of molds are provided. The molds are each provided with springs having different elastic forces, and by performing compression molding according to a preset order, it is possible to prevent the phenomenon that the raw material is torn or destroyed during the molding process. The object is to provide a manufacturing method of a packaging buffer tray made of paper material and a buffer tray manufactured thereby.

Brief Description of the Drawings

[0022] Figure 1 is a process diagram schematically showing a manufacturing method of a packaging buffer tray made of paper material according to the present invention. Figure 2 is a drawing schematically showing a state in which a product is placed on a packaging buffer tray made of paper material according to the present invention. Figure 3 is a drawing schematically showing that the inner paper according to the present invention is cut in a straight line shape. Figure 4 is a drawing schematically showing that the inner paper according to the present invention is cut alternately in both side directions. Figure 5 is a photograph showing the appearance of the inner paper cut alternately in both side directions according to the present invention after being pressure-molded. FIG. 6 is a drawing showing the inner paper and the outer paper constituting the raw material according to the present invention. FIG. 7 is a drawing showing a crepe paper, an E-flute liner, and an embossed paper used as the outer paper constituting the raw material according to the present invention.

Embodiment for Carrying Out the Invention

[0023] When explaining the invention, the inventor can select and define appropriate terms and words for the explanation. In this case, the terms and words used should not be interpreted as being limited to the commonly used meanings, but should be interpreted in accordance with the technical idea embodied from the invention, taking into account the intention of the inventor.

[0024] Therefore, the terms and words used in this specification and the claims cannot be said to be limited to the commonly used meanings. The content described in detail below is only a desirable embodiment of the present invention, and is not intended to represent or limit all of the technical idea. Therefore, there may be elements that can be easily substituted and examples falling within the equivalent scope from the perspective of an ordinary technician.

[0025] Based on the above-mentioned principles, the manufacturing method of the packaging buffer tray made of paper material according to the present invention and the buffer tray manufactured thereby will be described with reference to the drawings.

[0026] As shown in FIG. 1, the manufacturing method of the packaging buffer tray made of paper material according to the present invention includes a raw material preparation step of preparing a raw material (raw material) for manufacturing a buffer tray in which a plurality of papers are laminated, a molding preparation step of preparing at least one or more molds corresponding to the shape and size of the product to be packaged, and a molding step of pressing the raw material with the mold to form it.

[0027] Actually, in the case of general paper, it is weak against external impacts and easily torn, and when pressed for molding, at least a part of it will break, so it has the characteristic that it is very difficult to produce a specific shape through molding. Therefore, in order to form paper into a specific shape using a mold and a press, it is necessary to process the paper with a material that can be molded.

[0028] Due to the above-mentioned necessity, the raw material preparation stage according to the present invention is a stage of preparing a raw material that can be formed using a mold and a press. Here, the above-mentioned raw material is formed by adhering at least one or more outer papers to an inner paper with an adhesive. The inner paper is configured to play a role of maintaining the overall shape of the buffer tray inside when the raw material is formed, and the outer paper helps to maintain the shape of the outer paper as a role of wrapping the inner paper from the outside, and when the inner paper is cut open as described later, it can simultaneously perform an aesthetic function by hiding its outer surface.

[0029] As the inner paper, kraft paper can be used, and it is desirable that the inner paper is composed of one sheet, but if necessary, two or more sheets can be provided. The outer paper can be attached with only one sheet or more in the preparation stage. For example, when only one outer paper is attached in the preparation stage, an additional outer paper can be attached after the subsequent forming stage. However, it is of course possible that the outer paper is not additionally attached after being formed with only one outer paper attached. Or, two or more outer papers are attached in the preparation stage, and in this case, it is desirable that they are attached so as to wrap from both sides with the inner paper in between.

[0030] If the outer paper is made of relatively thin paper, several layers of overlapping paper can be used. For example, embossed toilet paper can be overlapped several times, or wrinkled and thin Hanji paper can be overlapped several times and used.

[0031] As described above, even if the inner paper and the outer paper are adhered by an adhesive, when pressure is applied by an external force to form, a phenomenon of mostly breaking or a part tearing can occur. Therefore, additional processing is required so that both the outer paper and the inner paper can withstand an external force.

[0032] Therefore, the inner paper can be cut along the length direction of the product to be packaged as shown in Fig. 3. Thus, when an external force is applied by a mold and a press, while the cut part spreads to both sides, the force transmitted from the outside concentrates on the cut part, preventing different parts from being torn or split. In particular, such a cut is not only made in the shape of a single line along the length direction of the product to be packaged, but can also further include at least one or more lines in the direction perpendicular to the length direction. In this case, the tensile force can be dispersed not only in the left - right direction but also in the up - down direction, and the phenomenon of overall tearing or splitting can be prevented.

[0033] According to a preferred embodiment, as shown in Fig. 4, the inner paper is cut along the length direction, but can be cut in a zigzag manner alternately in both side directions. In this case, when an external force is applied, the force is dispersed in various directions from each cut surface with respect to the cut surface, so the phenomenon of being torn or split by the external force can be prevented more stably. At this time, the cut may be in a wavy zigzag manner alternating like a curve as shown in Fig. 4, but is not limited to this, and can also be cut in a simple zigzag manner with straight lines alternating. However, in this case as well, at least one or more line - shaped cut surfaces can be further included on both side surfaces in the length direction as shown in Fig. 4.

[0034] In addition, when there are other reasons such as the large size of the product to be packaged, the inner paper may be used with at least two or more overlapping. At this time, each inner paper is cut, but when each inner paper is cut alternately in both side directions as described above, each inner paper is laminated so that the alternating cut surfaces overlap in opposite directions (opposite directions). That is, the ribs and the floors of each cut shape intersect each other, preventing the paper from being torn by an external force.

[0035] Fig. 5 is a photograph showing a schematic shape of a buffer tray formed using an inner paper cut in a wavy shape alternately in both side directions as described above.

[0036] On the one hand, at least one of wrinkles, E-flute, and embossing can be formed on the upper paper. That is, in order to prevent other parts from being torn or split when stretched by the tensile force due to an external force, as shown in FIG. 7, the upper paper can be any one of wrinkled paper, E-flute liner, and embossed paper. Therefore, when an external force is applied, in the case of wrinkled paper, the wrinkles will spread first before being destroyed, and the deformation caused by the external force can be buffered. Similarly, for the E-flute liner, the E-flute will be stretched first to buffer the deformation caused by the external force, and the embossed paper can also be buffered by the embossing process.

[0037] Referring to FIG. 6, the configuration of the raw material with the cut inner paper and embossed paper as the upper paper is schematically shown. However, since the raw materials formed in such a configuration must adhere to each other, an adhesive is required.

[0038] The adhesive can be adopted without limitation as long as it can make the contact surfaces of each paper adhere to each other. However, in some cases, when using an adhesive, there is a risk that the raw material will stick to the mold during the forming process and the shape cannot be maintained. Therefore, in order to prevent this, the adhesive may be an adhesive containing starch flour. Including starch flour is functional because it is easy to maintain the shape of the raw material and can prevent the phenomenon of sticking to the mold, and an environmentally friendly effect can also be obtained.

[0039] When actually forming a buffer tray using paper, the phenomenon of tearing or splitting often occurs due to the weak strength of the paper itself. Especially in the case of a buffer tray for packaging multiple products, a plurality of placement spaces must be formed. When forming these multiple placement spaces simultaneously, the phenomenon of splitting will occur more frequently. That is, the part between the two placement spaces receives tensile forces from both sides simultaneously, so it is easily torn. Therefore, in order to prevent this, it is desirable that each placement space be formed in sequence.

[0040] Therefore, in order to prevent this, the method for manufacturing a cushioning tray for packaging paper materials according to the present invention may be performed including a forming preparation stage and a forming stage. The forming preparation stage is a stage for preparing for forming the raw material, and at least two or more molds are prepared for forming, and springs are attached to the molds. Also, the forming stage can be a stage in which a plurality of molds are operated in a preset order and the raw material is formed with a time difference.

[0041] Thereby, each placement space is formed in time series so as to correspond to the molds operated in a preset order. In particular, by providing a spring, the time when the mold contacts the raw material can be adjusted, and the forming can be performed stably.

[0042] The spring may be attached to only one mold and not to the other molds, and can be installed in all of the plurality of molds as needed. However, since the spring is installed for the purpose of adjusting the time when the plurality of molds contact the raw material, when all of the plurality of molds are equipped with springs, each spring can be a spring having a different elastic force for each mold.

[0043] In addition, when the placement space is formed with a time difference, the next mold should perform the forming after the mold that performs the forming first sufficiently draws in the paper, so this spring needs to be provided with sufficient strength.

[0044] After the forming stage is completed, the outer shape of the cushioning tray may not be neatly trimmed. Therefore, the step of trimming the cushioning tray can be performed as needed. For example, a separately printed sticker can be attached to the surface of the cushioning tray to increase the aesthetic feeling, or a protruding part can be removed, etc. can be additionally performed.

[0045] On the one hand, the buffer tray for packaging made of paper material according to the present invention is characterized in that it is manufactured by the above-mentioned manufacturing method. Figure 2 is a drawing schematically showing a product placed on the buffer agent for packaging made of paper material manufactured according to the present invention. Therefore, the configuration of the buffer tray that can be self-evidently derived from the time-series configuration started in the above-mentioned manufacturing method should be regarded as belonging to the scope of rights of the buffer tray for packaging made of paper material according to the present invention.

[0046] As described above, the present invention has been described in detail with reference to the drawings and the preferred embodiments. However, the scope of the technical matters of the present invention is not limited by these drawings and embodiments. Therefore, various modifications or equivalent scope embodiments may exist within the scope of the technical matters of the present invention. Therefore, the scope of rights of the technical matters according to the present invention should be interpreted by the claims, and the technical ideas within the scope equivalent or equal to this should be interpreted as belonging to the scope of rights of the present invention.

Claims

1. A raw material preparation step of preparing a raw material for manufacturing a buffer tray in which a plurality of sheets of paper are laminated; A molding preparation step of preparing at least one or more molds corresponding to the shape and size of the product to be packaged; and A molding step of pressing and molding the raw material with a mold; A method for manufacturing a packaging buffer tray made of paper, characterized by including: The raw material is an inner paper; and at least one or more upper papers; are adhered and laminated by an adhesive. The inner paper is cut along the long side direction of the product to be packaged, and the region serving as the product placement space is cut and intersects each other in the short side direction perpendicular to the long side direction, or the inner paper is cut along the long side direction of the product, and the region serving as the product placement space is cut in a zigzag manner alternately in both directions. A method for manufacturing a packaging buffer tray.

2. The method for manufacturing a packaging buffer tray made of paper according to claim 1, wherein the inner paper is kraft paper.

3. The method for manufacturing a packaging buffer tray made of paper according to claim 1, wherein the upper paper is a paper in which at least one of wrinkles, E-flute, and embossing is formed.

4. The method for manufacturing a packaging buffer tray made of paper according to claim 1, wherein the adhesive contains starch.

5. The molding preparation step is: The method for manufacturing a packaging buffer tray made of paper according to claim 1, characterized by preparing at least two or more molds, and springs being mounted on the molds.

6. The molding step is: The method for manufacturing a packaging buffer tray made of paper according to claim 5, characterized in that a plurality of molds are operated in a preset procedure, and the raw material is molded according to a time difference.

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