KR102382137B1 - Moisture-proof product for automobile lamps with improved moisture absorption and emission resistance - Google Patents

Abstract

A moisture-proof product for automobile lamps with improved moisture absorption and emission resistance of the present invention comprises: an air permeable packaging material in which a porous packaging film is opposed and four sides are heat-sealed to form a filling space therein; and a desiccant provided in a filling space of the air permeable packaging material. The desiccant comprises: a first inorganic material containing at least one selected from the group consisting of magnesium chloride and calcium chloride; a second inorganic material containing at least one selected from the group consisting of magnesium oxide and calcium oxide; carboxymethyl cellulose; sodium triphosphate; a porous structure separated and recovered from starfish; an antifungal agent; grains formed with a porous structure; and calcined powder.

Description

Moisture-proof product for automobile lamps with improved moisture absorption and emission resistance

The present invention relates to a moisture-proof product for a vehicle lamp with improved hygroscopicity and emission resistance.

In general, when the temperature in the vehicle lamp housing decreases in a driving environment with high humidity, fogging may occur on the inner surface of the lamp housing and the lens surface of the lamp.

Such a fogging phenomenon means that moisture condensed due to a decrease in temperature forms fine water droplets on the inner surface of the housing and the lens surface, and this phenomenon may cause light scattering and threaten the driving safety of the driver.

In order to solve this problem, a desiccant capable of controlling humidity due to temperature change is disposed in the housing in which the lamp is built.

At this time, the desiccant is packaged in a breathable packaging material.

However, the conventional desiccant absorbs a certain amount of moisture and then re-releases the moisture in a driving environment of high temperature and low humidity, which may cause a problem of causing dew condensation on the surface of the lamp lens. In addition, the conventional dehumidifier has a problem in that the dehumidifying performance is deteriorated as moisture absorption and release are repeated, so that the anti-fogging function is remarkably deteriorated.

In addition, mold is generated due to moisture according to moisture absorption in the air permeable packaging material, and moisture absorption and release are not performed smoothly as the air permeability due to the mold decreases, and in particular, there is a problem that moisture absorption efficiency is lowered.

Accordingly, it was necessary to improve the structure of the desiccant for vehicle lamps with efficient moisture absorption and release resistance and the ventilation packaging material that can increase the efficiency of the desiccant.

Republic of Korea Patent Registration 10-1825698 Republic of Korea Patent Publication 10-2020-0131427 Korean Patent Registration 10-2043286

The purpose of the present invention, which has been devised to solve the above-described problems, is to improve hygroscopicity and release resistance, as well as to prevent mold generation through an antifungal agent to maintain breathability of the packaging material. This is to provide an improved moisture-proof product for vehicle lamps.

In addition, an object of the present invention is that the moisture absorption rate through the first inorganic material containing magnesium chloride and calcium chloride and carboxymethyl cellulose is efficient, and the deliquescent property of the first inorganic material is promoted through the second inorganic material containing magnesium oxide and calcium oxide. It is to provide a desiccant for vehicle lamps with improved hygroscopicity and emission resistance, which can maintain moisture absorption and prevent corrosion of vehicle body lamp housings such as vehicle lamp housings by sodium triphosphate.

According to the moisture-proof product for a vehicle lamp with improved hygroscopicity and release resistance of the present invention for achieving the above object, the porous packaging film is opposed, and the air-permeable packaging material is heat-sealed on all sides to form a filling space therein; and a desiccant provided in the filling space of the breathable packaging material, wherein the desiccant is a first inorganic material comprising at least one selected from the group consisting of magnesium chloride and calcium chloride; a second inorganic material comprising at least one selected from the group consisting of magnesium oxide and calcium oxide; carboxymethyl cellulose; sodium triphosphate; porous structure separated and recovered from starfish; antifungal agents; grains formed into a porous structure; and calcined powder.

In addition, the breathable packaging material is made of a triple structure, and includes an inner packaging material, an intermediate packaging material provided with the inner packaging material, and an outer packaging material provided with the intermediate packaging material.

In addition, the desiccant includes a first desiccant filled in the inner packaging material, a second desiccant filled in the intermediate packaging material, and a third desiccant filled in the outer packaging material, and the first desiccant is made of magnesium chloride and calcium chloride 20 to 40 wt% of a first inorganic material comprising at least one selected from the group; 50 to 60% by weight of a second inorganic material comprising at least one selected from the group consisting of magnesium oxide and calcium oxide; 10 to 20% by weight of carboxymethyl cellulose; 1 to 5% by weight of sodium triphosphate; 1 to 5% by weight of the porous structure isolated and recovered from the starfish; 1 to 5% by weight of an antifungal agent; 1 to 5% by weight of grains formed into a porous structure; and 5 to 10% by weight of the calcined powder.

In addition, the second desiccant includes the same composition as that of the first desiccant, but includes a first mineral that is 15 to 25% by mass less than the first mineral of the first desiccant.

In addition, the third desiccant includes the same composition as that of the first desiccant, but contains a first inorganic material that is reduced by 35 to 50 mass% compared to the first inorganic material of the first desiccant.

In addition, the inner packaging material, the outer edge of the two sheets of packaging film is heat-sealed, the intermediate packaging material, the outer edge of the two sheets of packaging film is heat-sealed, and facing the outer edge of the inner packaging material A part of the second packaging film is heat-sealed so that the inner packaging material is fixed to the center, and the outer packaging material is heat-sealed on the outer edge of the two sheets of third packaging film, the third packaging film part facing the outer end of the intermediate packaging material It is characterized in that it is heat-sealed and the intermediate packaging material is fixed in the center.

In addition, in the inner packaging material and the intermediate packaging material, the inner surface of the first packaging film and the second packaging film is impregnated with the porous structure separated and recovered from the starfish to form a coating layer, and the thickness of the coating layer of the first packaging film is, It is characterized in that it is formed to be thicker than the thickness of the coating layer of the second packaging film.

As described above, the effect of the present invention is a moisture-proof product for a vehicle lamp with improved hygroscopicity and release-resistance that not only improves hygroscopicity and release resistance, but also prevents the occurrence of mold through the antifungal agent to maintain the ventilation of the packaging material. is to provide

In addition, an object of the present invention is that the moisture absorption rate through the first inorganic material containing magnesium chloride and calcium chloride and carboxymethyl cellulose is efficient, and the deliquescent property of the first inorganic material is promoted through the second inorganic material containing magnesium oxide and calcium oxide. It is possible to provide a desiccant for a vehicle lamp with improved hygroscopicity and release resistance, which can maintain moisture absorption and prevent corrosion of a vehicle body such as a vehicle lamp housing by sodium triphosphate.

1 is a perspective view showing a moisture-proof product for a vehicle lamp with improved hygroscopicity and emission-resistance according to a preferred embodiment of the present invention.
2 is a cross-sectional view showing a moisture-proof product for a vehicle lamp with improved hygroscopicity and emission-resistance according to a preferred embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining a moisture-proof product for a vehicle lamp having improved hygroscopicity and emission resistance according to embodiments of the present invention.

The moisture-proof product for a vehicle lamp with improved hygroscopicity and release-resistance according to the present invention includes a breathable packaging material 10 and a desiccant 20 .

First, referring to FIGS. 1 to 2 , the breathable packaging material 10 is made of a porous packaging film 11, is not limited in shape or size, and may be formed as necessary.

In addition, two sheets of porous packaging film 11 are opposed to the air permeable packaging material 10, and a filling space 18 is formed therein by heat-sealing the slopes. And, the air permeable packaging material 10, moisture passes through the inside, is agglomerated by the desiccant 20 filled therein is made of a structure that does not leak to the outside.

The desiccant 20 is provided in the filling space 18 of the air permeable packaging material 10 . At this time, the desiccant 20 may include: a first inorganic material containing at least one selected from the group consisting of magnesium chloride and calcium chloride; a second inorganic material comprising at least one selected from the group consisting of magnesium oxide and calcium oxide; carboxymethyl cellulose; sodium triphosphate; porous structure separated and recovered from starfish; antifungal agents; grains formed into a porous structure; and calcined powder.

The desiccant 20 will be described in more detail.

First, the desiccant 20 for a vehicle lamp includes a first inorganic material, a second inorganic material, carboxymethyl cellulose, and sodium triphosphate.

The first inorganic material includes any one or more selected from the group consisting of magnesium chloride and calcium chloride.

In this case, it is preferable that the first inorganic material is a mixture of magnesium chloride and calcium chloride, and through this, it may have a property of preventing the release of moisture absorbed while maintaining excellent moisture absorption.

The second inorganic material includes at least one selected from the group consisting of magnesium oxide and calcium oxide.

And, as a curing agent, the second inorganic material absorbs a small amount of moisture and promotes deliquescent properties of calcium chloride and magnesium chloride to increase moisture absorption.

Carboxymethyl cellulose (carboxymethyl cellulose) has a dehumidifying function together with the first inorganic material.

At this time, in addition to carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, and carboxymethyl cellulose ) can be any one of

Sodium triphosphate can lower the corrosion by chloride as the primary mineral. In this case, sodium diphosphate or sodium monophosphate may be included in addition to sodium triphosphate, but sodium triphosphate is included because sodium triphosphate has a large effect in preventing corrosion.

And sodium triphosphate may be made of sodium phosphate (Na3PO4), potassium phosphate (K3PO4), lithium phosphate (Li3PO4), and combinations thereof, but is not limited thereto.

The desiccant 20 for vehicle lamps with improved hygroscopicity and release resistance described above includes 20 to 40 wt% of the first inorganic material, 50 to 60 wt% of the second inorganic material, 10 to 20 wt% of carboxymethyl cellulose, and 1 to sodium triphosphate. 5% by weight.

When the first inorganic material is 20% by weight or less, a decrease in moisture absorption may occur, and when it is 40% by weight or more, liquefaction may occur due to excessive moisture absorption.

In addition, when the amount of the second inorganic material is 50 wt% or less, the promotion of deliquescent properties is insufficient, and when it is 60 wt% or more, the promotion of deliquescence properties may be excessive.

In addition, carboxymethyl cellulose is mixed with the first inorganic material, and when it is 10 wt% or less, the moisture absorption rate is lowered, and when it is 20 wt% or more, the first inorganic material can be liquefied due to excessive moisture absorption.

When sodium triphosphate is 1 wt % or less, the amount of phosphate film is small, so it is difficult to suppress forced corrosion, and 5 wt % or more has a great effect of preventing corrosion, but increases manufacturing cost.

On the other hand, the desiccant 20 for a vehicle lamp with improved hygroscopicity and release resistance according to the present invention further comprises 1 to 5% by weight of the porous structure separated and recovered from the starfish.

In this case, the first inorganic material and the second inorganic material are mixed with the porous structure.

In addition, the porous structure can be reduced by adsorbing chlorine ions generated as the first inorganic material absorbs moisture. It has the same effect of preventing corrosion as sodium triphosphate. In particular, a portion that cannot contain a large amount due to the cost of sodium triphosphate can be replaced with a porous structure recovered through starfish.

Here, in order to recover the porous structure from the starfish, the salt contained in the starfish is completely removed. When the porous structure is recovered from the salty starfish, the salt in the starfish is adsorbed to the porous structure, thereby reducing the adsorption rate of chlorine ions. Accordingly, it is desirable to completely remove the salt from the starfish.

When the desalted starfish is put in a protease solution (pepsin) and reacted, the protein of the starfish is decomposed and the porous structure contained in the starfish can be separated. At this time, the separated porous structure can be recovered, and the porous structure is made of calcium carbonate. That is, calcium carbonate takes the form of a three-dimensional porous structure, and can adsorb chlorine ions.

On the other hand, the desiccant 20 for a vehicle lamp with improved hygroscopicity and release resistance according to the present invention further comprises 1 to 5 wt% of an antifungal agent.

At this time, when the amount of the antifungal agent is less than 1% by weight, the antibacterial effect is insufficient, and when it is 5% by weight or more, the antibacterial effect is slightly improved.

These antifungal agents may be mixed with tourmaline and zeolite in a weight ratio of 1:1.

In addition, tourmaline and zeolite can prevent the propagation of mold bacteria by radiation of far-infrared rays at the same time as dehumidification.

In particular, the zeolite may be one in which one or more metal ions of silver or copper are adsorbed to the zeolite.

That is, it is possible to prevent the growth of mold by mixing tourmaline and zeolite adsorbed with silver or copper ions in a 1:1 weight ratio. Through this effect, the color change of the packaging material filled with the desiccant 20 for a vehicle lamp with improved hygroscopicity and release resistance of the present invention does not occur. In addition, by preventing the growth of mold in the lamp of the vehicle, it is possible to facilitate the management of the vehicle lamp for a long time.

The antifungal agent may further include a natural herbal powder.

And, the natural herbal powder, tourmaline and zeolite, can be mixed in a weight ratio of 1:1:1.

In addition, natural herbal powder, garlic, hawthorn, green tea leaves, after drying any one or more from the group consisting of gwanjung, powdered, mixed with 10 parts by weight in 100 parts by weight of water to prepare an herbal mixture, silica in the herbal mixture It is prepared by mixing the powder in a 1:1 weight ratio, drying it, and re-pulverizing it to 1.0 to 1.5 μm. At this time, the natural herbal powder may have a water content of less than 1%, but is not limited thereto.

Garlic contains allicin, which is known to have strong antibacterial and anticancer effects. Allicin in garlic has a strong antibacterial effect against microorganisms that cause various diseases, such as Escherichia coli, mold, Shigella, Typhoid, Mycobacterium tuberculosis, Staphylococcus, Streptococcus, Encephalitis, Vibrio, and Cholera.

It is known that hawthorn contains a large amount of flavonoids. Flavonoids have bactericidal and insecticidal effects, killing or inhibiting fungi and viruses.

Green tea leaves remove mold and contain catechin, which has excellent anti-allergic, antibacterial and antiviral effects.

The spectators have excellent ability to suppress or eliminate viruses and bacteria.

That is, the natural herbs described above contain ingredients such as allicin, flavonoids, catechins, etc., and by extracting them and using them as antifungal agents, antibacterial, antiviral, and antifungal functions can be maintained even during long-term use. there is.

Therefore, the antifungal agent can be prepared by mixing tourmaline, zeolite adsorbed with silver or copper ions, and natural herbal powder in a weight ratio of 1:1:1.

On the other hand, the desiccant 20 for a vehicle lamp with improved hygroscopicity and release resistance according to the present invention may further include 1 to 5% by weight of grains.

Grain, including any one or more of white rice, brown rice, black rice, barley, and oats, increases in volume as it expands by applying heating and pressure at the same time, and is formed in a porous structure to absorb moisture.

And, as the grain absorbs moisture, mold may be generated, but mold is not generated by the antifungal agent described above.

In addition, the grain is mixed with the first inorganic material, and when the first inorganic material absorbs moisture together, the effect of dehumidification can be further improved.

Also, as the grains formed in the porous structure absorb the moisture absorbed by the first inorganic material next, the liquefaction of the first inorganic material can be prevented and the moisture absorption of the first inorganic material can be maintained for a long time.

On the other hand, the desiccant 20 for a vehicle lamp having improved hygroscopicity and release resistance according to the present invention further comprises 5 to 10% by weight of the calcined powder.

The calcined powder is prepared by kneading charcoal powder, loess powder, and diatomaceous earth powder, drying and calcining the powdered powder again.

That is, the calcined powder is first mixed and kneaded by 40% by weight of charcoal powder, 25% by weight of loess powder, 25% by weight of diatomaceous earth powder, and 10% by weight of water made of charcoal and bamboo charcoal, and the kneaded dough is flattened. Dry it. And, when the dough is dried, it should be pulverized with a grinder. It is prepared by putting the powdered powder in a kiln and calcining at 300 to 1000° C. for 5 to 10 hours. This calcined powder is a powder in which charcoal powder, loess powder, and diatomaceous earth powder are integrated, and effective moisture absorption is possible.

On the other hand, the above-mentioned first inorganic material, second inorganic material, carboxymethyl cellulose and sodium triphosphate are made of white powder, and 25 to 30 by a mixer at 30 to 40 rpm in a manufacturing room maintaining a relative humidity of 40% RH or less Mix for a minute.

At this time, since magnesium chloride is liquefied according to moisture absorption, it is preferable to maintain a relative humidity of 40% RH or less. In addition, when mixing through a mixer, if more than 30 minutes is made, because moisture absorption occurs, mix for less than 30 minutes, and mix for less than 25 minutes, mixing is not done well.

Then, while mixing the first inorganic material, the second inorganic material, carboxymethyl cellulose and sodium triphosphate, the porous structure separated and recovered from the starfish, the antifungal agent, the grain and the calcined powder are sequentially added and mixed, but mixing within 30 minutes to finish

On the other hand, the moisture absorption and release resistance of the present invention is improved moisture-proof product for a vehicle lamp, as shown in FIGS. 1 to 2, the air permeable packaging material 10 is made of a triple structure.

That is, the air permeable packaging material 10 includes an inner packaging material 12, an intermediate packaging material 14 having an inner packaging material 12 therein, and an outer packaging material 16 having an intermediate packaging material 14 therein.

First, the inner packaging material 12 faces the two sheets of the first packaging film 13 and heat-seals the ends of the facing first packaging films 13, but the first desiccant 21 is filled.

In this case, the first desiccant 21 may include 20 to 40% by weight of a first inorganic material including at least one selected from the group consisting of magnesium chloride and calcium chloride; 50 to 60% by weight of a second inorganic material comprising at least one selected from the group consisting of magnesium oxide and calcium oxide; 10 to 20% by weight of carboxymethyl cellulose; 1 to 5% by weight of sodium triphosphate; 1 to 5% by weight of the porous structure isolated and recovered from the starfish; 1 to 5% by weight of an antifungal agent; 1 to 5% by weight of grains formed into a porous structure; And 5 to 10% by weight of the calcined powder; it is prepared by mixing the composition through a mixer for 25 to 30 minutes.

The intermediate packaging material 14 faces the two sheets of second packaging film 15 formed to be larger than the first packaging film 13 of the inner packaging material 12 , and heat-seals it, but fills the second desiccant 22 .

At this time, the second desiccant 22 is prepared in the same manner as the first desiccant 21 , except that the first inorganic material is reduced by 15 to 25 mass% compared to the first inorganic material of the first desiccant 21 .

Then, the intermediate packaging material 14 is heat-sealed after the inner packaging material 12 filled with the first desiccant 21 is inserted while the second desiccant 22 is filled.

The outer packaging material 16 faces the two third packaging films 17 formed to be larger than the second packaging film 15 of the intermediate packaging material 14 and heat-seals them, but fills the third desiccant 23 .

At this time, the third desiccant 23 is prepared in the same manner as the first desiccant 21 , except that the first inorganic material is reduced by 35 to 50 mass% compared to the first inorganic material of the first desiccant 21 .

In addition, the outer packaging material 16 is heat-sealed after the intermediate packaging material 14 in which the inner packaging material 12 is inserted while filling the third desiccant 23 .

That is, the third desiccant 23 and the intermediate packaging material 14 inside the outer packaging material 16, the second desiccant 22 and the inner packaging material 12, and the inner packaging material 12 inside the intermediate packaging material 14 A first desiccant 21 is provided therein, respectively.

And, the desiccant 20, the mass ratio of the first inorganic material decreases toward the outer packaging material 16, the intermediate packaging material 14, and the inner packaging material 12. Accordingly, moisture absorption is achieved by the first desiccant 21 without affecting the initial reaction rate, and the moisture absorption of the second desiccant 22 filled in the intermediate packaging material 14 is achieved by absorption of the first desiccant 21, Moisture absorption of the third desiccant 23 filled in the inner packaging material 12 is achieved by absorption of the second desiccant 22 . And finally, the moisture absorbed by the third desiccant 23 is not easily released because it is located at the innermost side.

Moreover, as the ratio of the first inorganic material increases toward the inside of the moisture-proof product, the direction of moisture absorption is made inward, and the release becomes difficult, so that the release-resistance effect is further improved.

On the other hand, the inner packaging material 12, the outer edge of the two sheets of the first packaging film 13 is heat-sealed.

And, in the intermediate packaging material 14, the outer edge of the two sheets of the second packaging film 15 is heat-sealed, and the second desiccant 22 is at least one of the upper surface and the lower surface of the inner packaging material 12. It is heat-sealed so that the upper and lower width of the filling space 18 is constant so that it can be covered with a predetermined thickness. In addition, the outer end of the inner packaging material 12 facing the second packaging film 15 of the intermediate packaging material 14 is partially heat-sealed. Accordingly, the inner packaging material 12 is fixed to the center of the filling space 18 of the intermediate packaging material 14 .

The outer packaging material 16 is heat-sealed on the outer edge of the two sheets of the third packaging film 17, and the third desiccant 23 is constant on one or more of the upper and lower surfaces of the intermediate packaging material 14. The upper and lower widths of the filling space 18 are uniformly heat-sealed to be covered with a thickness. In addition, a portion of the third packaging film 17 facing the outer end of the intermediate packaging material 14 is further heat-sealed. Accordingly, the intermediate packaging material 14 may be fixed to the center of the filling space 18 of the outer packaging material 16 .

That is, as the intermediate packaging material 14 is fixed to the inside of the outer packaging material 16 by heat sealing, and the intermediate packaging material 14 is fixed by heat sealing, the position can be fixed even when the vehicle moves and stops. For example, when the intermediate packaging material 14 is tilted to one side of the outer packaging material 16, the third desiccant 23 is agglomerated to the other side. At this time, not only does the third desiccant 23 aggregated on the other side of the outer packaging material 16 do not absorb moisture evenly, but also directly absorb moisture with the second desiccant 22 of the intermediate packaging material 14 having a high ratio of the first inorganic material. Rather, moisture absorption of the first desiccant 21 is not achieved. Accordingly, it is preferable to position the intermediate packaging material 14 inside the outer packaging material 16 .

In addition, the inner packaging material 12 and the intermediate packaging material 14, the inner surface of the first packaging film 13 and the second packaging film 15 is impregnated with the porous structure separated and recovered from the starfish to form a coating layer.

In this case, the thickness of the coating layer of the first packaging film 13 is preferably formed to be thicker than the thickness of the coating layer of the second packaging film 15 . This is because the ratio of the first inorganic substance increases toward the inside of the moisture-proof product, so that the generation of chloride ions due to moisture absorption also increases. At this time, a coating layer is formed on the inner surfaces of the first packaging film 13 and the second packaging film 15 so that chloride ions can be easily removed. ) may be formed to be thicker than the thickness of the coating layer.

On the other hand, as described above, examples and comparative examples of the moisture-proof product for a vehicle lamp having improved hygroscopicity and emission-resistance according to the present invention will be described. However, the following Examples and Comparative Examples are only examples for explaining the present invention, and are not limited thereto.

[Example 1]

It is a moisture-proof product in which the above-described first desiccant 21 is filled in the air-permeable packaging material 10, and the air-permeable packaging material 10 consists of a single layer.

In addition, the breathable packaging material 10 had a width of 100 mm, respectively, and after filling 35 g of the first desiccant 21, it was processed at a temperature of 120° C. using a heat sealer to prepare a specimen.

[Example 2]

The air permeable packaging material 10 is made of a triple, and the first desiccant 21, the second desiccant 22, and the third desiccant 23 are in the inner packaging material 12, the intermediate packaging material 14 and the outer packaging material 16, respectively. was filled.

And, the width of the inner packaging material 12 is 5 mm, the intermediate packaging material 14 is 7.5 mm, the outer packaging material 16 is formed with a width of 100 mm, the first desiccant 21 to the third desiccant 23 After each filling of 35 g, a specimen was prepared by processing at a temperature of 120° C. using a heat sealer.

[Comparative example]

It is an existing commercialized moisture-proof product.

[Experimental Example 1]

After exposing the specimens to a temperature of 50±2 ℃ and 95±5% relative humidity for 7 days using a thermo-hygrostat, each weight was measured every 24 hours. did

[Equation 1]

[Experimental Example 2]

After the specimen was allowed to absorb moisture for 48 hours at a temperature of 23±2° C. and 50±5% relative humidity, it was again dried in an oven set at 70±2° C. for 2 hours, and the moisture absorption at each drying temperature was measured. That is, by performing the initial moisture absorption and then drying, the moisture absorption rates at the initial stage and after drying were measured, respectively, and the release resistance was calculated by substituting each moisture absorption rate in [Equation 2] below. For example, 90% release resistance means that 90% of the moisture absorbed in the initial stage remains after drying.

[Equation 2]

[Table 1] is a table showing the change in weight and moisture absorption by measuring the physical properties of the specimen.

Weight (g) Moisture absorption (%) Early Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Example 1 36.54 56.08 67.54 75.14 81.55 85.31 92.42 152.9 Example 2 36.54 56.20 67.80 75.19 81.92 85.52 94.30 155.3 comparative example 36.51 47.22 62.47 65.54 67.30 69.21 70.20 92.3

It can be seen that Examples 1 and 2 have much higher moisture absorption than Comparative Examples, and it can be seen that the moisture absorption of Example 2 is higher than that of Example 1.

That is, it can be seen that the multi-layer structure of the air permeable packaging material is more efficient than the single-layer structure.

[Table 2] is a table showing the weight change and release rate measured for the physical properties of the specimen.

Weight (g) Emission rate (%) Early Day 1 Day 2 Example 1 36.77 46.54 45.21 0.86 Example 2 36.69 46.87 45.30 0.84 comparative example 36.74 44.95 45.01 1.01

As shown in Table 2, it can be seen that the release rate of Examples 1 and 2 is lower than that of Comparative Examples, indicating that the release rate is good, and that Example 2 has a better release rate than Example 1.

[Experimental Example 3]

An antibacterial test was performed using the desiccant prepared according to Examples 1 and 2 and the strains Escherichia coil ATCC 25922 and Pseudomonas aeruginosa ATCC 15442 used in Comparative Examples, and the results are shown in Table 3 below.

Test Items sample Initial concentration (CFU/40p) Concentration after 48 hours (CFU/40p) Test with E. coli Example 1 525 225 Example 2 525 224 comparative example 525 1230 Test by Pseudomonas Bacillus Example 1 340 184 Example 2 340 185 comparative example 340 880

As a result of the antimicrobial test, it can be confirmed that Examples 1 and 2 according to Examples of the present invention have superior antibacterial effect than Comparative Examples.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. should be interpreted In addition, the operation sequence of the components described in the above process does not necessarily have to be performed in a time-series order, and if the gist of the present invention is satisfied even if the execution order of each configuration and step is changed, such a process may fall within the scope of the present invention. Of course you can.

10: breathable packaging material 11: porous packaging film
12: inner packaging material 13: first packaging film
14: intermediate packaging material 15: second packaging film
16: outer packaging material 17: third packaging film
18: filling space 20: desiccant
21: first desiccant 22: second desiccant
23: third desiccant

Claims (7)

Breathable packaging material facing the porous packaging film and heat-sealed on all sides to form a filling space therein; and
Including; desiccant provided in the filling space of the breathable packaging material;
The desiccant may include: a first inorganic material comprising at least one selected from the group consisting of magnesium chloride and calcium chloride; a second inorganic material comprising at least one selected from the group consisting of magnesium oxide and calcium oxide; carboxymethyl cellulose; sodium triphosphate; porous structure separated and recovered from starfish; antifungal agents; grains formed into a porous structure; and calcined powder;
The antifungal agent includes a mixture of tourmaline and zeolite and natural herbal powder of at least one of garlic, hawthorn, green tea leaf, and gwanjung,
The calcined powder includes a powder in which charcoal powder, loess powder, and diatomaceous earth powder are mixed and calcined,
The air-permeable packaging material has a triple structure, and includes an inner packaging material, an intermediate packaging material provided with the inner packaging material, and an outer packaging material provided with the intermediate packaging material,
The desiccant comprises a first desiccant filled in the inner packaging material, a second desiccant filled in the intermediate packaging material, and a third desiccant filled in the outer packaging material,
The first desiccant may include 20 to 40% by weight of a first inorganic material comprising at least one selected from the group consisting of magnesium chloride and calcium chloride; 50 to 60% by weight of a second inorganic material comprising at least one selected from the group consisting of magnesium oxide and calcium oxide; 10 to 20% by weight of carboxymethyl cellulose; 1 to 5% by weight of sodium triphosphate; 1 to 5% by weight of the porous structure isolated and recovered from the starfish; 1 to 5% by weight of an antifungal agent; 1 to 5% by weight of grains formed into a porous structure; And 5 to 10% by weight of the calcined powder,
The second desiccant includes the same composition as the first desiccant, but includes a first inorganic material that is 15 to 25% by mass less than the first inorganic material of the first desiccant;
The third desiccant includes the same composition as that of the first desiccant, but contains a first inorganic material that is reduced by 35 to 50 mass% compared to the first inorganic material of the first desiccant;
The inner packaging material, the outer edge of the two sheets of the first packaging film is heat-sealed,
In the intermediate packaging material, the outer edge of the two sheets of the second packaging film is heat-sealed, and a part of the second packaging film facing the outer edge of the inner packaging material is heat-sealed so that the inner packaging material is fixed in the center,
The outer packaging material, the outer edge of the two sheets of the third packaging film is heat-sealed, a part of the third packaging film facing the outer end of the intermediate packaging material is heat-sealed so that the intermediate packaging material is fixed in the center,
In the inner packaging material and the intermediate packaging material, the inner surface of the first packaging film and the second packaging film is impregnated with the porous structure separated and recovered from the starfish to form a coating layer,
The thickness of the coating layer of the first packaging film is formed to be thicker than the thickness of the coating layer of the second packaging film, and moisture absorption and release resistance are improved for a vehicle lamp.
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