WO2017039073A1

WO2017039073A1 - Fruit packaging box

Info

Publication number: WO2017039073A1
Application number: PCT/KR2015/013555
Authority: WO
Inventors: 임봉학; 안종희; 임보라; 임영훈
Original assignee: 임봉학; 안종희; 임보라; 임영훈
Priority date: 2015-08-31
Filing date: 2015-12-11
Publication date: 2017-03-09

Abstract

The purpose of the present invention is to provide a fruit packaging box wherein the structure of the fruit packaging box is improved so as to prevent fruit from being damaged by an external impact during transportation of the fruit packaging box, and a coating layer having a moisture-absorbing function and an adsorption function is provided on the base paper of the fruit packaging box so as to absorb gas generated from fruit during storage and distribution of the fruit packaging box and absorb moisture inside the box.

Description

Fruit Packaging Box

The present invention is a fruit packaging containing a buffer box that surrounds the fruit circumference so as not to damage the various fruits by the impact applied from the outside when packaging and transporting and storing various fruits such as apples, pears, melons, peaches of the spherical shape It's about the box.

The present invention also relates to a fruit packaging box in which inorganic powder particles capable of adsorbing gas and moisture issued during storage are coated on one or both sides of the base paper of the packaging box and the buffer box.

In general, as a box for packing fruit, a box made of cardboard or styrofoam is widely used. The method of packing fruit such as apples, pears, peaches, and melon, which are spherical, is in the upper and lower packing boxes. In the process of packaging, transporting and storing spherical fruits, a plate-shaped buffer plate made of styrofoam material is used so that the fruit is not damaged by an external impact. After inserting the insertion grooves arranged at intervals, the surface of the fruit is wrapped with a sponge material and inserted into the insertion grooves of the buffer plate body.

However, the fruit packaging box is composed of paper or styrofoam, which are fragile, so that the box is easily damaged or deformed from external shocks, and the fruits stored inside are not properly protected from external shocks during transportation and storage. And deteriorated or deformed to deteriorate the quality.

In other words, the fruit packaging box made of conventional paper is weak in strength, so the box is easily broken or damaged by external impact, and the fruit stored inside is simply wrapped with a cover to prevent the external shock from properly protecting itself. There is a problem that the fruit is damaged or deformed to reduce the quality of the fruit.

Therefore, in recent years, the delivery of spherical fruits by courier is common, so that the box is damaged during the delivery process, and the fruit is often bruised, so consumers are dissatisfied with the quality and demand returns. As a result, the seller's sluggish sales add to economic losses.

In addition, when packing fruit in a packing box, it is cumbersome to wrap the whole cover. There was a problem of causing environmental pollution when discarding after using the sponge to purchase the cover and the synthetic resin material.

A fruit packaging box for solving this problem is disclosed in Korean Patent Registration No. 10-1124703.

The above-described packaging box is used to package the spherical fruits in the existing fruit packaging box, so that the upper and lower portions of the fruit are seated by the buffer box without using a styrofoam plate or a cover, so that the fruit is sandwiched in the fruit packaging box. Since the shock absorbing boxes located at the top and bottom of the packaging box are fixed in a state spaced apart from the inner circumferential surface of the packing box, they can be delivered to the consumer in a perfect state without being damaged or damaged by an external impact.

However, the buffer plate body of the above-described packaging box is provided with a plurality of through-holes are formed around the plurality of through-holes are formed by cutting a portion at a predetermined interval, the fruit is seated in the through-holes When the packaging box vibrates by an external force in a state of contacting the contact box, the plurality of cutouts of the eggless part have a sharp shape, so that the fruits are scratched by the plurality of cutouts and the fruit is damaged. There is this.

Therefore, there is a need to improve the structure of the fruit packaging box used when packaging the spherical fruit.

In addition, the base paper of the fruit packaging box should be excellent in water resistance and oil resistance, and for this purpose, various synthetic resins such as polyethylene, polypropylene, polyvinyl chloride, and urethane are coated on the surface of the base paper such as paper. In addition to the need for supplements to give plasticity or heat adhesiveness, if synthetic resin containing these materials is coated on the packaging box and the buffer box of the inner surface of the packaging material, it may adversely affect the human body due to the elution of harmful substances, Environmental hormones are released during disposal. In addition, agricultural products such as fruits are kept in the packaging box and continue to breathe during storage and distribution. Through this respiration, the fruit packaged in the box withers or dries. Also, ethylene gas and aldehyde gas during storage or distribution. Or the gas generated and alcohol gas is the cause of promoting the ripening of the fruit, due to the softening phenomenon caused by the natural ripening, there is a problem that the quality is gradually changed and easily rot due to the action of microorganisms.

Therefore, it is required to provide a coating layer having a function of moisture absorption and gas adsorption on the base paper of the packaging box together with the improvement of the structure of the fruit packaging box.

The present invention is to solve the above problems, during the transport of the fruit packaging box, to improve the structure of the fruit packaging box to prevent the fruit from being damaged by an external impact, and also during storage and distribution of the fruit packaging box The present invention provides a fruit packaging box provided with a coating layer having moisture absorption and adsorption functions on the base paper of the fruit packaging box, which can adsorb gas generated from the fruit and absorb moisture within the box.

According to the present invention, a plurality of through holes are formed in the buffer plate body while the edge of the buffer plate body inserted into the outer package box contacts the inner wall of the outer package box. Inserting a disposable paper cup having a frusto-conical shape, the diameter of which is narrowed downward, in a wedge type, the length of the disposable paper cup being in contact with the bottom of the outer packaging box, and the bottom of the disposable paper cup being in contact with the bottom of the upper edge of the disposable paper cup. The bottom of the curled portion has a length that can be in contact with the upper surface of the buffer plate body, and the disposable paper cup is inserted into the disposable paper cup from the bottom of the fruit to the upper half of the fruit, assuming that the top of the fruit is the top Have a size that makes it possible,

In addition, 100 parts by weight of a mixed powder of zeolite powder, diatomaceous earth powder or a mixture of 85 to 95% by weight of these mixtures and 5 to 15% by weight of calcium carbonate powder, 140 to 180 parts by weight of water, and a polylactic acid to the base of the packing box and the buffer plate 15 The above problems can be solved by applying a coating solution obtained by mixing ˜30 parts by weight to form a coating layer.

According to the present invention, even if the packaging box is vibrated by an external force, the fruit is protected by the disposable cup and the fruit is not damaged and the coating layer is exposed to gas or moisture during distribution. The fruit can be prevented from ripening or decaying, allowing the fruit to be delivered to consumers safely while maintaining freshness.

1 is a view showing a fruit buffer protection of an embodiment according to the present invention,

Figure 2 is a view showing a developed view of the blank of the fruit buffer protection of Figure 1,

3 is a view illustrating a state in which the front and rear outer leg panels and the male shaped bars of the blank of FIG. 2 are folded;

4 is a view showing a state in which the left and right outer leg panels are folded in the blank of FIG.

FIG. 5 is a view illustrating a state in which the inner leg panels are folded in the blank of FIG. 2;

6 is a view showing a state in which the paper cup is mounted in Figure 1, and

FIG. 7 is a view illustrating an oval seat provided in a through hole of FIG. 2; FIG.

Hereinafter, the fruit buffer protection unit of the embodiment according to the present invention will be described in detail with reference to FIGS. 1 to 7.

1, the fruit buffer protection part of this embodiment is indicated by the reference numeral 100.

The fruit buffer protection unit 100 is inserted in a state in which the periphery of the rectangular box-shaped outer box (1) in contact with the inner wall of the box-shaped outer box (1).

The ceiling of the box-shaped outer box 1 is blocked or has an opening 2 as shown in FIG. 1 but smaller than the size of the bottom of the box-shaped outer box 1.

As shown in FIG. 2, the fruit buffer protection unit 100 is made by folding a blank A, and the blank A is a rectangular sheet-shaped ceiling panel 10 and the ceiling panel 10. The left outer leg panel 11, which is connected to the left side of the panel via a fold line, the right leg panel 12, which is joined to the right side of the ceiling panel 10 via the fold line, and the upper side of the ceiling panel 10. Fold line on the left and right sides of the rear leg panel 13, the front leg panel 14, and the rear leg panel 13 connected to the lower side of the ceiling panel 10 via the fold line through the fold line. Rear left male shab 15 and rear right male shab 16, which are joined via a gap, and a front left male shaver 17, which is connected to the left and right sides of the front leg panel 14 via a fold line. And an anterior right male bub (18).

In addition, the blank A is connected to the left inner leg panel 19, which is joined to the left side of the left leg panel 11 via a fold line, and to the right side of the right leg panel 12, via the fold line. The right inner leg panel 20 is included.

The rear left male shave 15 and the front left male shave 17 have a length at which the front ends thereof do not overlap each other when the blank A is folded, and the rear right male shave 16 The front right male shape rib 18 has a length such that the ends thereof do not overlap with each other when the blank A is folded.

In addition, a left slot opening 21 is formed at the center of the fold line interposed between the left leg panel 11 and the ceiling panel 10, and the right leg panel 12 and the ceiling panel 10 are formed. The right slot opening 22 is formed in the center of the fold line interposed between them.

In addition, a left male protrusion 23 which can be inserted into the left slot opening 21 is formed at the center of the left side of the left inner leg panel 19, and on the right side of the right inner leg panel 20. In the center is formed a right male protrusion 24 that can be inserted into the right slot opening 22.

In addition, a plurality of through holes 25 are formed in the ceiling panel 10.

The blank 100 formed as described above may be folded as follows.

First, in the unfolded blank A, as shown in FIG. 3, the rear leg panel 13 and the front leg panel 14 are directed toward the inner surface of the ceiling panel 10 with respect to the ceiling panel 10. After standing and standing at right angles, the rear left male shave 15 and the front left male shave 17 are folded at right angles to face each other.

Next, as shown in FIG. 4, the left outer leg panel 11 and the right outer leg panel 12 are folded to stand at right angles toward the inner surface of the ceiling panel 10 with respect to the ceiling panel 10.

Next, as shown in FIG. 5, the left inner leg panel 19 and the right inner leg panel 20 are brought into contact with the inner surfaces of the left leg leg 11 and the right leg leg panel 12, respectively. And the rear left male shape bar 15 and the front left male shape bar 17 are inserted between the left inner leg panel 19 and the left outer leg panel 11, and the rear right side. The male tab 16 and the front right male tab 18 are inserted between the right inner leg panel 29 and the right leg panel 12.

In this state, the left male protrusion 23 is inserted into the left slot opening 21, and the right male protrusion 24 is inserted into the right slot opening 22. Maintains a blocked cuboid shape.

The cuboid shape is at least any one of the rear left male shave 15, the front left male shave 17, the rear right male shave 16, and the front right male shave 18 in an inserted state. If you don't uninsert one, that state can be maintained.

As shown in FIG. 1, the fruit buffer protection unit 100 includes a plurality of paper cups 30 which are conventional disposable cups having a truncated cone shape respectively inserted into the plurality of through holes 25.

The plurality of paper cups 30 are larger in diameter than the plurality of through holes 25 and lower in size than the plurality of through holes 25. Since the ceiling panel 10 is turned upside down, it is not inserted into the plurality of through holes 25.

In addition, the plurality of paper cups 30, as shown in Figure 6, the bottom is in contact with the bottom of the outer box 1 and the bottom of the curled portion 31 of the upper edge of the ceiling panel 10 It is long enough to contact the top.

In addition, when the plurality of paper cups 30 are assumed that the top portion 51 of the fruit 50 is upper, the fruits are inserted into the paper cup 30 from the lower portion of the fruit to the upper half of the fruit in a wedge manner. The lower portion of the fruit has a size and shape that does not touch the bottom of the paper cup (30).

The fruits 50 are spherical apples, pears, peaches, melons, and the like, and these fruits are usually of the upper half and smaller than the upper half.

Thus, the fruit is inserted into the paper cup 30 in a wedge manner, so that the fruit does not fall out of the paper cup 30 even when the ceiling panel 10 is inverted.

In the description of the above embodiment, the plural through holes 25 have been described as having no difficulty described in Korean Patent Registration No. 10-1124703 mentioned in the prior art, but the present invention is not limited thereto. As shown in FIG. 7, a circumference portion 40 formed by cutting a portion at a predetermined interval may be provided around the plurality of through holes 25.

If the unoccupied portion is provided around the plurality of through holes 25, the contact area between the plurality of paper cups 30 and the unoccupied portion 40 of the plurality of through holes 25 is increased to stably provide the plurality of unoccupied portions. It is preferable in view of the fact that the plurality of paper cups 30 can be seated in the two through holes 25.

In addition, the fruit buffer protection unit 100 in the description of the embodiment has been described as having a plurality of leg panels around the ceiling panel and the ceiling panel, the present invention is not limited to this, the plurality of leg panels Only the ceiling panel may be in contact with the inner wall of the box-shaped outer box 1 in the removed state.

The reason is that the plurality of paper cups 25 are always in contact with the box-shaped outer box 1 to serve as a bridge, and the upper opening of the box-shaped outer box 1 is the box-shaped outer box 1. This is because the ceiling panel 10 can not escape through the upper opening because it is narrower than the bottom.

Next, a description will be given of a packaging material coated with specific inorganic material particles on the base paper forming the packaging box of the present invention.

The packaging material of the fruit packaging box according to the present invention is 100 parts by weight of zeolite powder, diatomaceous earth powder or a mixture powder of 85 to 95% by weight and 5 to 15% by weight of calcium carbonate powder, 140 to 180 parts by weight of water and poly It is made by applying a coating solution obtained by mixing 15-30 parts by weight of lactic acid.

Method for forming a coating layer on the base of the packaging box comprises the steps of first preparing a mixed powder by mixing at least one of zeolite powder and diatomaceous earth powder and calcium carbonate powder; Preparing a coating solution by mixing water, polylactic acid, and the mixed powder; Applying the coating solution to a base paper; And drying the base paper coated with the coating solution. Characteristics and roles of the components constituting the coating solution are as follows.

Zeolites are aluminum silicate minerals of porous crystals containing mainly alkali metals or alkaline earth metals.The tetrahedron of (Si, Al) O ₄ forms a three-dimensional stereoscopic skeleton structure by apical oxygen. Large pores are formed in the center and contain water molecules and exchangeable cations.

Water molecules, but readily removed by heating at a relatively low temperature skeleton of the zeolite structure is able to absorb moisture in the air does not change, the chemical composition will be represented by _{(Si, Al) (O 2} xnH 2 O) Wy and W is It is mainly composed of sodium (Na) and calcium (Ca) and contains potassium (K), magnesium (Mg), barium (Ba), lithium (Li), and the like.

Zeolites have a pore size of a certain size and selectively adsorb the molecules smaller than this, and selectively and strongly adsorb unsaturated hydrocarbons or polar substances by the action of cations in the crystal structure. The cation can be easily exchanged with other cations to remove harmful substances, concentrate and recover useful components, and replace some of the cations with anions to have antimicrobial effects, thereby maintaining food quality and freshness.

Diatomite is a rock or sediment in which harmful particles of diatoms, a single cell organism, accumulate, and are mainly composed of silicon dioxide (SiO ₂ ), mostly composed of amorphous silica, with some crystalline silica, porous Iii) Due to the complicated structure of diatom itself and its primary and secondary pores, its density is very low and there are countless gaps in the cell of diatom, which can filter out impurity particles. As it is excellent, it is widely used in adsorbents, manure materials, insulation materials and abrasives.

As described above, the zeolite powder and the diatomaceous earth powder have a large number of pore shapes composed of fine open cells and structural functions indicating a large surface area of the inner space, and thus the water absorbing ability and ammonia gas, carbon dioxide gas, Excellent binding ability with gas such as hydrogen sulfide gas and adsorption capacity of heavy metal.

Calcium carbonate is a colorless crystal or white solid that does not dissolve in pure water, but dissolves in water containing carbon dioxide to form calcium hydrogen carbonate, and when acid is applied to calcium carbonate, carbon dioxide is generated. do.

These calcium carbonates are not toxic to the human body and have antibacterial and bactericidal properties against various harmful bacteria and microorganisms, and are dispersed in water to form suspensions as well as functions as extenders and reinforcing agents having excellent hardness, heat insulation, moisture absorption, and hiding ability. It controls the fluidity of zeolite powder and diatomaceous earth powder.

Calcium carbonate can be classified into ground calcium carbonate and hard calcium carbonate according to particle size and manufacturing process. In general, heavy calcium carbonate is manufactured by physical method of crushing and classifying limestone and hard carbonate. Calcium is produced by the chemical method of filtration, drying and pulverizing the precipitate produced by blowing carbon dioxide into lime oil.

Although the particle size of the heavy calcium carbonate is not clearly defined, the particle size of the hard calcium carbonate is generally about 1 to 45 μm, and the particle size of the hard calcium carbonate is less than 1 μm. Because of its small size, large specific surface area, and narrow particle size distribution, it is preferable to use hard calcium carbonate in terms of increasing dispersion stability in water and fluidity of zeolite powder and diatomaceous earth powder.

As the calcium carbonate powder, an oyster shell powder obtained by pulverizing oystershell, a by-product of shellfish aquaculture, may be used. The main component of the oyster shell is calcium carbonate having a calcite structure and a phosphorus component in addition to the oyster shell. When the coating solution containing powder is coated on the base paper, calcium phosphate is produced to improve the strength, and it is a natural porous inorganic material that is stable to shrinkage and expansion due to thermal shock, thereby preventing the coating solution from drying after being cracked on the base paper.

The cross section of the oyster shell is composed of a sheet layer, which is a dense plate structure, and a bulky layer of a porous structure, having a large specific surface area, which is different from each other in chemical composition and structure. It is preferable to use a bulky layer of porous structure to absorb more gas and moisture generated from

As above, it replaces calcium carbonate and recycles oyster shell which is marine fishery waste, so it can reduce environmental pollution and save resources, so it is environmentally friendly and human-friendly because it is not harmful to human body. Due to the large number of pores, the packaging material coated with the coating liquid containing the bulky layer of the oyster shell has a high structure due to its high density and excellent physical properties such as acid resistance and fire resistance.

In order for the zeolite powder, the diatomaceous earth powder and the calcium carbonate powder to have high dispersibility in water, these powders preferably have a fine particle size of 200 to 500 mesh, and the finer the particles, the larger the specific surface area and In order to impart fluidity to the particles, water fills the space between the particles while surrounding the particle surface, thereby increasing the dispersibility of these powder particles.

Water acting as a solvent of the coating liquid serves to disperse the mixed powder to impart fluidity and to help form a coating layer when the coating liquid is applied to the base paper, and unlike organic solvents, it remains as a residue that adversely affects the coating layer. Do not.

Polylactic acid is a type of hydrophobic crystalline polyester made from starch extracted from plants and has a repeating unit of-[O (CH ₃ ) CHOC] n-, and the coating solution is coated on the base paper. It serves as an adhesive to be attached.

Since polylactic acid is a basic structural unit of lactic acid, which is a natural organic compound that is also present in the living body, it is not only excellent in safety and food hygiene among biodegradable polymers using biomass, but also in terms of mechanical properties, heat resistance and economic efficiency. Have

In the polylactic acid, optical isomers of poly-L-lactic acid and poly-D-lactic acid are present, and among them, the lower the optical purity is, the lower the melting point is. It is desirable to use lactic acid to increase adhesion.

Increasing the adhesion performance by low melting point polylactic acid can reduce the mixing amount of polylactic acid, so that the mixing amount of zeolite powder, diatomaceous earth powder and calcium carbonate powder is relatively increased, so that the gas and water adsorption performance of food packaging material is further improved. In addition, the reduction in the mixing amount of the polylactic acid is preferable in that the inorganic powder particles in the coating liquid are prevented from being deposited on the bottom by lowering the possibility of aggregation of the inorganic powders by the adhesive component.

The coating liquid is a suspension in which inorganic powder particles are dispersed in water, and zeolite powder, diatomaceous earth powder, and oyster shell powder have a porous structure to adsorb polylactic acid onto the surface of powder particles, and inorganic powder particles adsorbing the polylactic acid. The steric repulsion occurs due to the hydrophobic interaction, and due to the repulsive force, it can be stably dispersed without being precipitated in the suspension.

As described above, the heavy zeolite powder or diatomaceous earth powder contained in the coating liquid has increased fluidity due to calcium carbonate and improved dispersion stability due to repulsive force between the particles. The sinking on the way down will be reduced.

Next, the coating solution is applied to a base paper of paper, fabric or nonwoven fabric and dried at a temperature of 60 to 350 ° C. to prepare a packaging material. The coating amount is not particularly limited, but the basis weight is preferably 5 to 300 g / m 2. 20-60 g / m <2> is more preferable, The coating speed in this case is 80-500 m / min is preferable, and 200-300 m / min is more preferable.

The coating solution may be coated in a sheet form or film form by coating or impregnating with a knife coater, gravure coater, screen coater, roll coater, spray coater, or the like. It can be heated and dried to a temperature of 60 ~ 350 ℃ by using a heating roll, etc., and can simultaneously laminate or melt-extrude one or both sides of the T-die multilayer. It is also possible to extrude and form a coating layer.

The packaging material prepared as described above is the coating liquid applied to the base paper is water is removed in the drying process, the zeolite powder, diatomaceous earth powder or a mixture thereof 65 to 81% by weight, calcium carbonate powder 5 to 11% by weight on one or both sides of the base paper and A coating layer of 14 to 24% by weight of polylactic acid is formed.

As described above, by forming the coating layer environmentally harmless to the human body on the base paper of the fruit packaging box, it is possible to improve the freshness maintenance and preservation of the fruit by excellent moisture adsorption and gas bonding properties.

Claims

In the fruit packaging box for packing the fruit of the spherical shape, the fruit buffer protection unit 100 is inserted into the inner wall of the box-shaped outer box (1),

The fruit buffer protection unit 100 is formed in the sheet-shaped ceiling panel 10 and the ceiling panel 10 whose periphery is in contact with the inner wall of the box-shaped outer box 1 in the box-shaped outer box 1. It comprises a plurality of paper cups 30 which are disposable cups having a truncated cone shape respectively inserted into the plurality of through holes 25,

The plurality of paper cups 30 are larger in diameter than the plurality of through holes 25 and lower in size than the plurality of through holes 25. Will be inserted,

The plurality of paper cups 30 have a length such that the bottom thereof contacts the bottom of the outer box 1 and the bottom of the curled portion 31 of the upper edge may contact the top surface of the ceiling panel 10. ,

Assuming that the plurality of paper cups 30 is the top of the fruit, the fruit is inserted into the paper cup 30 in a wedge manner from the bottom of the fruit to the upper half of the fruit so that the bottom of the fruit is the paper cup 30. Has a size and shape that does not touch the bottom of the

At least one side or both sides of the outer box (1), the fruit buffer protection unit 100 and the paper cup 30, the fruit packaging box, characterized in that the coating layer capable of absorbing or adsorbing moisture and gas.
The method of claim 1,

The fruit buffer protection unit 100, in addition to the sheet-shaped ceiling panel 10 as a blank (A),

The left outer leg panel 11, which is connected to the left side of the ceiling panel 10 via a fold line,

The right outer leg panel 12, which is connected to the right side of the ceiling panel 10 via a fold line,

The rear leg panel 13, which is connected to the upper side of the ceiling panel 10 via a fold line,

The front leg panel 14, which is connected to the lower side of the ceiling panel 10 via a fold line,

The rear left male shave 15 and the rear right male shave 16, which are connected to the left and right sides of the rear leg panel 13 via a fold line,

The front left male shackle 17 and the front right male shackle 18, which are connected to the left and right sides of the front leg panel 14 via a fold line,

A left inner leg panel 19 which is joined to a left side of the left leg panel 11 via a fold line, and

A right inner leg panel 20 which is connected to the right side of the right leg panel 12 via a fold line,

The rear left male shave 15 and the front left male shave 17 have a length at which the front ends thereof do not overlap each other when the blank A is folded, and the rear right male shave 16 The front right male form 18 has a length such that the ends thereof do not overlap each other when the blank A is folded,

A left slot opening 21 is formed in the center of the fold line interposed between the left leg panel 11 and the ceiling panel 10, and between the right leg panel 12 and the ceiling panel 10. The right slot opening 22 is formed in the center of the folding line which is interposed,

In the center of the left side of the left inner leg panel 19 is formed a left male projection 23 which can be inserted into the left slot opening 21, and in the center of the right side of the right inner leg panel 20 Fruit packaging box, characterized in that the right male projections 24 that can be inserted into the right slot opening 22 is formed.
The method of claim 1,

Fruit packaging box, characterized in that the circumference of the plurality of through-holes (25) is provided with an egg seat portion 40 formed by cutting a portion at a predetermined interval.
The method of claim 1,

The coating layer is a fruit packaging box comprising a zeolite powder, diatomaceous earth powder or a mixture thereof 65-81% by weight, calcium carbonate powder 5-11% by weight and polylactic acid 14-24% by weight.
The method of claim 4, wherein

The coating liquid forming the coating layer is 100 parts by weight of a mixed powder consisting of 85 to 95% by weight of zeolite powder, diatomaceous earth powder or a mixture thereof and 5 to 15% by weight of calcium carbonate powder, 140 to 180 parts by weight of water and 15 to 30 parts by weight of polylactic acid. Fruit packaging box, characterized in that made by mixing the wealth.