KR20140052392A - An effective rodent repelling film - Google Patents

Abstract

Provided in the present invention is a rodent repelling film. The rodent repelling film of the present invention comprises a first adhesion layer including an adhesive and a first resin; a support layer formed by including a rodent repellent and a second resin on the first adhesion layer; and a second adhesion layer formed by including the rodent repellent, the adhesive, and the first resin on the support layer. According to the present invention, provided is the rodent repelling film capable of preventing damage by scratches of the rodents by including the rodent repellent in the support layer and the second adhesion layer.

Description

An Effective Rodent Repelling Film}

The present invention relates to a film for preventing rodents, and more particularly, to a film for preventing rodents, which prevents a rodent from eating a silage film by containing a rodent repellent in a silage film wrapping the silo.

In the domestic reality where land area is narrow and land price is high, policy support is continuing along with efforts of industry to grow high productivity forage crops in order to increase self-sufficiency rate of forage with most nutrients.

As a result, the amount of silage to be supplied to the concentrate grows, and most of the silage has been fed into the form of an annulus or a raw plant by cultivating corn and rye. The raw greens are mainly used for the specification management in the autumn season in summer, and the ensilys are harvested in the autumn, and the bunker silos or the trench silos are piled up to prevent the contact with the air to prevent lactic acid fermentation, It is widely used because of the palatability of livestock for fermented entree.

However, there is a problem in that the production of an enclosure using a bunker silo or a trench silo requires a site for making a silo, and a lot of manpower is input at the time of manufacturing the silo, so that the work must be completed in a short time.

Therefore, recently, farmers using circular veil silage films using corn, rye and raw straw are increasing in number.

The circular bale silage film is made of a round bale without the need of separate facilities for making the envelope, and the silage film can be stored in any place after wrapping it with a lapping machine, and it is advantageous to feed it.

However, the silage film has suffered damage due to rodents, resulting in poor fermentation due to external oxygen and water infiltration, and corruption may occur.

Rodents are harmful animals that cause a great deal of damage to crops and stocks that mediate various diseases or grow, and they are widely distributed all over the world and have more than 1800 kinds of them.

Since rodents cause considerable damage to agriculture and forestry, various types of repellents have been proposed as one effective method for preventing rodents from eating, and among these repellents, cycloheximide, ZAC (zinc dimethyldithiocarbamate And cyclohexylamine complexes) and trialkyltin compounds are known as repellents used in natural and synthetic resin products. In particular, cycloheximide, an antibiotic found in 1950, is widely used because of its excellent prophylactic effects on rodent and other animal damage, but since it is an antibiotic, it is expensive, relatively toxic, It is possible to cause problems such as safety. In addition, since cycloheximide is highly water-soluble and readily decomposes at high temperatures, it is known that microcapsules are made into microcapsules in such a manner as to minimize detrimental effects thereof when actually used, Patent Publication No. 112932)

While the cycloheximide has an excellent effect of preventing damages caused by rodents, there is no solution that can solve the problem of high cost and large toxicity. Accordingly, in order to replace this, methods of combating capsaicin, an extract of pepper, with other compounds to eradicate rodents have been proposed.

However, the process of extracting capsaicin from red pepper is somewhat complicated. Also, since the capsaicin is mixed with other compounds, the production process is complicated and the production efficiency is lowered.

Therefore, there is a growing need for a film for preventing rodents that prevents damage to the silage film by stimulating rodents taste and nerves, and improving productivity.

Japanese Patent Laid-Open No. 112932

SUMMARY OF THE INVENTION The object of the present invention is to provide a film for preventing rodents which can prevent damage to the silage film caused by rodents by adding a rodent repellent to the support layer and the second adhesive layer do.

In order to accomplish the above object, the present invention provides a film for preventing rodents,

A first adhesive layer comprising a pressure-sensitive adhesive and a first resin; A supporting layer formed on the first adhesive layer to include a rodent repellent and a second resin; And a second adhesive layer formed on the support layer, the adhesive layer including a rodent repellent, a pressure-sensitive adhesive, and a first resin.

The rodent repellent may be selected from the group consisting of denatonium benzoate, sodium monofluorophosphate, pyridine-triphenylboran, tetra phenylboron pyridinium, tetraphenylboron 2-methyl (Tetra phenyl boron 2-methyl imidazole) and tetraphenyl boron 3-ammonium-1-prophenol (tetra phenyl boron 3-ammonium-1-prophenol).

The rodent repellent of the support layer may be 1 to 7% by weight based on the total weight of the support layer.

In addition, the support layer may further include an additive, and the additive may include at least one selected from a colorant, a UV stabilizer, an antioxidant, a photooxidation promoter, and an oxidation promoter.

The colorant may be a pigment.

The UV stabilizer may be at least one selected from the group consisting of benzotriazole, Hindered amine light stabilizer (HALS), and benzophenol.

The pressure-sensitive adhesives may be selected from the group consisting of polyisobutylene, polyisoprene, polybutene, polyisobutylene-polybutene copolymer, isoprene-isobutylene copolymer, styrene-diene-styrene copolymer, isoprene-butadiene copolymer, styrene- It may be at least one selected from the coalescence.

In addition, the first and second resins may be synthetic resins, and the synthetic resin may be polyethylene-based, and the first resin may be butene-LLDPE. The second resin may be at least one selected from the group consisting of Octene-LLDPE and Hexene-LLDPE.

As described above, a supporting layer obtained by mixing a rodent repellent and a second resin is formed on a first adhesive layer according to the present invention, and a second adhesive layer formed by mixing a rodent repellent, a pressure- It is possible to expect an effect of preventing damage to the silage film caused by rodents. Moreover, the rodent-preventing film produced according to the present invention can significantly reduce the damage to the tearing damage since the rodent repellent is included in the support layer and the second adhesive layer of the film.

In addition, compared to a rodent repellent using capsaicin, which is a conventional extract, there is no need to carry out an extraction process, so that efficiency at the time of manufacturing is improved, handling and mass production are possible, advantages in cost reduction and quality assurance .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a film for preventing rodents according to an embodiment of the present invention. FIG.

Hereinafter, the present invention will be described in more detail with reference to examples and the like, but the following examples are intended to illustrate the present invention, and the scope of the present invention is not limited thereto.

The present invention provides a film for preventing rodents from being damaged by rodents.

In one preferred example, a first adhesive layer comprising a pressure sensitive adhesive and a first resin; A supporting layer formed on the first adhesive layer to include a rodent repellent and a second resin; And a second adhesive layer formed on the support layer, the adhesive layer including a rodent repellent, a pressure-sensitive adhesive, and a first resin.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a film for preventing rodents according to an embodiment of the present invention. FIG.

1, the present invention includes a first adhesive layer 110 including a pressure-sensitive adhesive and a first resin, a supporting layer 120 formed on the first adhesive layer 110 to include a rodent-repelling agent and a second resin, , And a second adhesive layer (130) formed on the support layer (120) and including a rodent repellent, a pressure sensitive adhesive, and a first resin.

As described above, the film for preventing rodents according to the present invention can be expected to have an effect of preventing damage caused by rodents by forming a film containing a rodent repellent agent on each of the support layer 120 and the second adhesive layer 130. In addition, since the present invention does not require the extraction process as in the prior art using capsaicin as an extract, labor is reduced and productivity is improved.

For reference, the film for preventing rodents in the present invention may mean a wrap for wrapping a silo when producing silage, and the terms "wrap" and "film" may be used interchangeably and appropriately in context. It goes without saying that the present invention can be used as a wrap for other purposes other than a wrap for wrapping a silo.

First, the anti-rodent film of the present invention may form a first adhesive layer 110 including a pressure-sensitive adhesive and a first resin.

The adhesive may include an adhesive to prevent the wrap from being unfrozen after wrapping the silage. The adhesive may be a conventional one, but may be made of, for example, polyisobutylene, polyisoprene, polybutene, polyisobutylene- Butene copolymers, isoprene-isobutylene copolymers, styrene-diene-styrene copolymers, isoprene-butadiene copolymers, and styrene-butadiene copolymers. Preferably, polyisobutylene having high compatibility with a resin such as polyethylene, polypropylene and the like can be used. It may be contained in an amount of 7 to 15% by weight based on the total weight of the first adhesive layer 110 . Specifically, if it is more than 15% by weight, the adhesive strength may be improved, but the physical properties of the first resin may be deteriorated. If it is less than 7% by weight, the effect on the adhesive strength is lowered. It can be difficult. The pressure-sensitive adhesive may be used in the form of a masterbatch.

A support layer 120 including a rodent repellent and a second resin may be formed on the first adhesive layer 110. The support layer 120 may include a rodent repellent as a main component of the present invention.

Rodent repellents include denatonium benzoate, sodium monofluorophosphate, pyridine-triphenylboran, tetra phenylboron pyridinium, tetraphenylboron 2-methyl imide, Tetra phenyl boron 2-methyl imidazole, and tetra phenyl boron 3-ammonium-1-prophenol. However, the present invention is not limited thereto. Preferably, it may be denatomium benzoate, or sodium monofluorophosphate, or a combination thereof.

As a result of experiments conducted by the present inventors, it has been confirmed that the combination of denatomium benzoate and sodium monofluorophosphate is more preferable for exhibiting the effect as described above.

Specifically, denatonium benzoate was patented by GLAXO in the United Kingdom in 1950 and has been used in detergents and antifreeze. In the United States, antifreeze additions are mandatory in the United States to prevent pets from eating antifreeze and dying. It is prescribed to be added to various detergents to prevent children from eating them. In the UK, it is added to rat poison, batteries and so on. The denatomium benzoate is bitter immediately once it enters the mouth, and its bitter taste lasts quite a bit in the mouth. Thus, it can be used as a repellent for animals, birds and rodents.

Also, sodium monofluorophosphate is mainly used in toothpaste, and it is mainly used for prevention of tooth decay, but it can also be used as an insecticide. In addition, the nerve stimulation component of rodents is included, and it is possible to exhibit a repelling effect due to stimulation effect.

The rodent repellent is preferably contained in an amount of 1 to 7% by weight, based on the total weight of the support layer 120, so that the effect according to the present invention can be appropriately exhibited.

Specifically, when the content of the rodent repellent agent exceeds 7% by weight, the effect of the rodent repellent agent may be improved, but the physical properties of the second resin may be weakened to weaken the tensile strength and puncture resistance properties of the resin, May be degraded. On the other hand, if it is less than 1% by weight, the nerve stimulation effect of the rodents may be reduced, and the effect of preventing the rodents is insignificant. And more preferably 4 to 7% by weight.

In addition, as described above, the rodent repellent can be used in combination of denatomium benzoate and sodium monofluorophosphate. More preferably not less than 5% by weight of denatomium benzoate and not less than 2% by weight of sodium monofluorophosphate. Experiments have confirmed that due to the proper combination of the two substances, mutual synergistic action as a rodent repellent maximizes the effect.

For example, the additive may contain at least one selected from the group consisting of a coloring agent, a UV stabilizer, an antioxidant, a photooxidation promoter, and an oxidation promoter, in addition to the rodent repellent described above. It can be included in a usual manner.

The colorant is preferably used in the form of a colored pigment master batch in which the pigment is dispersed in the resin. By using such a master batch type, it is possible to inhibit the surface of the colorant from being exposed and cut off sunlight during silage fermentation, and thus can be in the optimum fermentation state. As the resin used for the color pigment master batch, a resin in which at least one of a higher fatty acid component having 8 to 60 carbon atoms and a higher alcohol component having 8 to 60 carbon atoms is introduced by the esterification reaction may be used, Any other known resins may be used.

Further, a UV stabilizer may be added in order to prevent the film from being oxidized by UV by blocking or absorbing ultraviolet rays. Preferred examples thereof include benzotriazole-based and Hindered amine light stabilizer (HALS) Phenol (Benzophenol) may be added. Preferably, it may be a HALS system having excellent light resistance. Examples of the HALS system include Bis- (2,2,6,6-tetramethyl-4-piperidinyl) sebacate, Bis- (1,2,2,6,6-pentamethyl- 5, di-tert-butyl-4-hydroxybenzyl) -2-n-butyl malonate, Tetrakis (2,2,6,6-tetramethyl-4-piperidinyl) -1,2,3,4-butane tetracabocylate, Mixed 2 , 2,6,6-tetramethyl-4-piperidinyl / tridecyl) -1,2,3,4-butane tetracarbocylate, and the like.

The HALS system is preferably added in an amount of 1 to 4% by weight based on the total weight of the supporting layer 120, and if exceeding 4% by weight, physical properties may be deteriorated or defects may occur. On the other hand, if it is less than 1% by weight, discoloration and cracks may occur due to a decrease in weatherability, and therefore, it is preferably added in the above-mentioned range, more preferably 2 to 3% by weight.

The antioxidant may be a phenolic system, a phosphite system and an alkylphenolic system, and the antioxidant has a function of further improving the effect of the UV stabilizer in addition to the antioxidant function.

The photooxidation accelerator may be calcium carbonate, calcium oxide, kaolin, etc. Kaolin may be obtained by treatment of meta kaolin at a high temperature. The reaction is initiated by light and oxygen to accelerate the free radical decomposition of the polymer, There is an effect of promoting the reaction.

In addition, the oxidation-inhibiting accelerator accelerates the oxidation-reduction reaction of the synthetic resin. For example, oleic acid, linoleic acid, linolenic acid, arachidonic acid, palmitoleic acid and the like may be used as the unsaturated fatty acid, The decomposition of the polymer can be accelerated.

It goes without saying that, in addition to the above additives, a dispersant or the like may be additionally added in order to uniformly disperse the compounds as required.

On the support layer 120, a second adhesive layer 130 including a rodent repellent, an adhesive, and a first resin may be formed.

The rodent repellent may be selected from the group consisting of denatonium benzoate, sodium monofluorophosphate, pyridine-triphenylboran, tetra phenylboron pyridinium, tetra Tetra-phenyl boron 2-methyl imidazole, and tetra phenyl boron 3-ammonium-1-prophenol. However, it may be at least one selected from tetra phenyl boron 2-methyl imidazole and tetra phenyl boron 3-ammonium- But is not limited thereto. Preferably, it may be denatomium benzoate, or sodium monofluorophosphate, or a combination thereof.

As a result of experiments conducted by the present inventors, it has been confirmed that the combination of denatomium benzoate and sodium monofluorophosphate is more preferable for exhibiting the effect as described above. Therefore, it is more preferable to combine at least 1 wt% of denatomium benzoate and at most 1 wt% of sodium monofluorophosphate and at most 2 wt% of sodium monofluorophosphate. Experiments have confirmed that due to the proper combination of the two substances, mutual synergistic action as a rodent repellent maximizes the effect.

The second adhesive layer 130 may include a pressure sensitive adhesive to prevent the wrap from loosening after wrapping the silage. The pressure sensitive adhesive may be a conventional one, for example, polyisobutylene, polyisoprene, And may be at least one selected from polybutene, polyisobutylene-polybutene copolymer, isoprene-isobutylene copolymer, styrene-diene-styrene copolymer, isoprene-butadiene copolymer and styrene-butadiene copolymer. Preferably, polyisobutylene is contained in an amount of 7 to 15% by weight based on the total weight of the first adhesive layer 110 and the second adhesive layer 130, respectively. Specifically, if it is more than 15% by weight, the adhesive strength may be improved, but the physical properties of the first resin may be deteriorated. If it is less than 7% by weight, the effect on the adhesive strength is lowered. It can be difficult. The pressure-sensitive adhesive may be used in the form of a masterbatch.

The rodent-barrier film of the present invention can be produced in three layers, and each of the three layers of the film can include a resin. Resin in the present invention means a resin as an amorphous solid or semi-solid comprising an organic compound and a derivative thereof.

The first and second resins used in the first adhesive layer 110, the support layer 120, and the second adhesive layer 130 may be synthetic resin. For example, the synthetic resin may be a polyethylene-based resin. The polyethylene-based resin may be at least one selected from the group consisting of low density polyethylene (LDPE), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE) Preferably linear low density polyethylene. At this time, the synthetic resin to be used is generally in the form of pellets, but the present invention is not limited thereto.

Specifically, LLDPE is a linear low density polyethylene having excellent heat sealing strength, tensile strength and puncture resistance, and has a linear molecular structure and a narrow molecular weight distribution. Particularly, when a small amount of LDPE is mixed with LLDPE, workability and optical characteristics can be improved.

The first resin used for the first adhesive layer 110 and the second adhesive layer 130 used Butene-LLDPE and the second resin used for the supporting layer 120 were Octene-LLDPE , And Hexene-LLDPE were used, it was confirmed that the present invention can exert the desired effects. When using Butene-LLDPE resin without slip agent, it has excellent workability and optical properties and can have high strength. When Octene-LLDPE or Hexene-LLDPE is used, it is more effective for photo-oxidation than LDPE having equivalent density and molecular weight. Sensitive and photooxidation reaction can be promoted.

Compositions corresponding to each layer of the film may be put into a hopper to produce a rodent-preventing film. Specifically, when the raw material corresponding to the pressure-sensitive adhesive and the first resin is put into the hopper, the raw material can be moved to one side while the screw rotates. At this time, the raw material is dissolved and supplied to one side. The molten raw materials may be extruded by a conventional single-screw or twin-screw extruder to form the first adhesive layer 110. In the same manner, the supporting layer 120 and the second adhesive layer 130 are sequentially formed on the first adhesive layer 110 and pressurized to produce the rodent-preventing film of the present invention.

{Example}

[Example 1: Preparation of rodent-preventing film]

90% by weight of Butene-LLDPE, and 10% by weight of PIB, to form a first adhesive layer. 91% by weight of Hexene-LLDPE, 1% by weight of Denatonium Benzoate (DB), 3% by weight of a HALS-based UV stabilizer and 5% by weight of a white pigment were mixed on the obtained first adhesive layer to form a support layer. 89% by weight of butene-LLDPE, 10% by weight of PIB and 1% by weight of DB were mixed to form a second adhesive layer on the support layer. As a result, a film for preventing rodents having a thickness of 30 탆 was prepared. The extruder used was a extruder having a screw diameter of 44 mm. The extruding speed was 300 rpm, the feed rate was 40 rpm, and the barrel temperature was 180 캜. The film can be produced by a conventionally known method.

For reference, the following films produced according to embodiments of the present invention are made of three layers. Each of the first adhesive layer and the second adhesive layer may be formed to a thickness of 10 to 20% and the support layer may be formed to a thickness of 60 to 80% based on the total thickness of the manufactured rodent-preventing film.

[Example 2]

In Example 1, the supporting layer was formed by mixing 89 wt% of Hexene-LLDPE, 3 wt% of DB, 3 wt% of a HALS-based UV stabilizer and 5 wt% of a white pigment, and the second adhesive layer was formed by mixing butene- , 10% by weight of PIB and 3% by weight of DB, to prepare a rodent-preventing film.

[Example 3]

In Example 1, the supporting layer was formed by mixing 87 wt% of Hexene-LLDPE, 5 wt% of DB, 3 wt% of HALS-based UV stabilizer and 5 wt% of white pigment, , 10% by weight of PIB and 3% by weight of DB, to prepare a rodent-preventing film.

[Example 4]

In Example 1, the supporting layer was formed by mixing 90 wt% of Hexene-LLDPE, 1 wt% of DB, 1% of SMFP (Sodium Monofluorophosphate), 3 wt% of a HALS system UV stabilizer and 5 wt% of a white pigment, Layer was formed by mixing butene-LLDPE of 88 wt%, PIB of 10 wt%, DB of 1 wt%, and SMFP of 1% in the same manner as in Example 1.

[Example 5]

In Example 1, the support layer was formed by mixing 88 weight% of Hexene-LLDPE, 3 weight% of DB, 1% of SMFP, 3 weight% of HALS type UV stabilizer and 5 weight% of white pigment, Rodent prevention film was prepared in the same manner as in Example 1, except that LLDPE was mixed with 86 wt%, PIB 10 wt%, DB 3 wt%, and SMFP 1%.

[Example 6]

In Example 1, the supporting layer was formed by mixing 86 wt% of Hexene-LLDPE, 5 wt% of DB, 1% of SMFP, 3 wt% of a HALS-based UV stabilizer and 5 wt% of a white pigment, Rodent prevention film was prepared in the same manner as in Example 1, except that LLDPE was mixed with 86 wt%, PIB 10 wt%, DB 3 wt%, and SMFP 1%.

[Comparative Example 1]

Except that the support layer was formed by mixing Hexene-LLDPE at 95% by weight and white pigment at 5% by weight, and the second adhesive layer by Butene-LLDPE at 90% by weight and PIB at 10% by weight Was prepared in the same manner as in Example 1 to prepare a rodent-preventing film.

[Comparative Example 2]

In Example 1, the supporting layer was formed by mixing 92 wt% of Hexene-LLDPE, 3 wt% of a HALS-based UV stabilizer and 5 wt% of a white pigment, and the second adhesive layer was formed by mixing Butene-LLDPE 90 wt% To prepare a rodent-preventing film by the same method as in Example 1.

[Experimental Example]

The rodent-preventing films prepared in Examples 1 to 6 and Comparative Examples 1 and 2 were packed in six bags of 50 g of feed, and were placed in individual rats in which three rats were placed and observed for 24 hours. After 24 hours, the mass of the film which was damaged by the rat was examined to calculate the degree of damage ((damaged mass / initial mass) * 100), and the results are shown in Table 1 below.

(Damaged mass / initial mass) * 100 (%) One 2 3 4 5 Average Example 1 4.6 4.8 4.3 5.0 4.7 4.68 Example 2 3.1 4.5 3.3 3.4 5.0 3.86 Example 3 1.2 1.5 1.1 1.7 0.9 1.28 Example 4 0.8 1.0 1.1 0.8 0.9 0.92 Example 5 0.1 0.0 0.1 0.0 0.3 0.10 Example 6 0.0 0.1 0.0 0.0 0.0 0.02 Comparative Example 1 64.6 73.4 70.9 61.4 65.5 67.16 Comparative Example 2 48.2 50.4 47.4 49.9 46.2 48.42

Referring to Table 1, it can be seen that the degree of damage caused by the rodents of Examples 1 to 6 was significantly smaller than that of Comparative Examples 1 to 2. For reference, the degree of scratch damage mentioned below will be described based on the average value in Table 1 above.

Specifically, in Comparative Example 1, a component serving as a rodent repellent was not added, and as a result, as shown in Table 1, it was found that the sticking damage was approximately 67%. Further, in Comparative Example 2, DB and SMFP, which are main components serving as a rodent repellent, were not added. However, by using a HALS-based UV stabilizer for preventing oxidation, it was found that the damage to the wick was slightly reduced as compared with Comparative Example 1 . It can be predicted that the HALS-based UV stabilizer not only functions as a UV stabilizer but also functions as a rodent repellent agent, but the degree of scratch damage is about 48% or more.

On the other hand, referring to the results of Comparative Example 2 and Examples 1 to 6, the degree of scratching damage in Examples is 0.02 to 4.68%, and Comparative Example 2 is 48.42%. This confirms that adding DB or DB and SMFP as well as a UV stabilizer as a rodent repellent to the support layer is significantly more effective than adding UV stabilizers alone. Further, in Examples 1 to 6, rodent-repellent agents are added to the second adhesive layer and the support layer, respectively, to more effectively prevent damage to the rope.

It is known in the art that if the degree of scratching damage exceeds 5%, the problem of not being fermented properly due to external oxygen and moisture penetration may occur. Therefore, it is known that the degree of scratching damage is less than 5% The degree of damaging damage of the rodent-preventing film produced according to the embodiment is preferably 0.02 to 4.68%. Particularly, in the case of Examples 5 and 6, the degree of scratch damage was 0.10, 0.02, which indicates that there is almost no damage, and the actual applicability is very high.

In addition, referring to Examples 1 to 3 in which DB is added as a rodent repellent and DB content is varied, it can be seen that as the amount of DB increases, the film warpage damage decreases.

Further, comparing the degree of damage of Examples 1, 2 and 3 in which only DB was added as a rodent repellent and Examples 4, 5 and 6 in which DB and SMFP were added as rodent repellents, I can confirm that there is some difference. Namely, it is effective to prevent the damage by the addition of DB only as a rodent repellent agent. However, when DB and SMFP were added, it was confirmed that the effect of mutual synergism further reduced the degree of damage to the rod, have.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is capable of modifying the technical idea of the present invention in various forms in accordance with the claims. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

Claims (12)

A first adhesive layer comprising a pressure-sensitive adhesive and a first resin;
A supporting layer formed on the first adhesive layer to include a rodent repellent and a second resin; And
And a second adhesive layer formed on the support layer, the adhesive layer comprising a rodent repellent agent, a pressure sensitive adhesive, and a first resin. The method according to claim 1,
The rodent repellent may be selected from the group consisting of denatonium benzoate, sodium monofluorophosphate, pyridine-triphenylboran, tetra phenylboron pyridinium, tetraphenylboron 2-methyl Wherein the film is at least one selected from the group consisting of tetra phenyl boron 2-methyl imidazole and tetraphenyl boron 3-ammonium-1-prophenol. The method according to claim 1,
The rodent-preventing film according to claim 1, wherein the rodent-repelling agent of the support layer is 1 to 7% by weight based on the total weight of the support layer. The method according to claim 1,
Wherein the support layer further comprises an additive. 5. The method of claim 4,
Wherein the additive comprises at least one selected from the group consisting of a colorant, a UV stabilizer, an antioxidant, a photooxidation promoter, and an oxidation reaction promoter. 6. The method of claim 5,
Wherein the coloring agent is a pigment. 6. The method of claim 5,
Wherein the UV stabilizer is at least one selected from the group consisting of benzotriazole, Hindered amine light stabilizer (HALS), and benzophenol. The method according to claim 1,
The pressure-sensitive adhesives may be selected from the group consisting of polyisobutylene, polyisoprene, polybutene, polyisobutylene-polybutene copolymer, isoprene-isobutylene copolymer, styrene-diene-styrene copolymer, isoprene-butadiene copolymer, styrene- Or a combination thereof. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
Wherein the first resin and the second resin are synthetic resins. 10. The method of claim 9,
Wherein the synthetic resin is a polyethylene-based film. 10. The method of claim 9,
Wherein the first resin is Butene-LLDPE. 10. The method of claim 9,
Wherein the second resin is at least one selected from the group consisting of Octene-LLDPE and Hexene-LLDPE.

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