KR20180088077A - A wrapping paper and its manufacturing method - Google Patents

Abstract

The present invention discloses wrapping paper formed of a laminated sheet, and a manufacturing method thereof. The wrapping paper formed of a laminated sheet is to pack seeds, fruit, cosmetic solutions, or masks. The wrapping paper formed of a laminated sheet is formed by consecutively laminating the following layers: a first layer (100) which includes polyethylene phthalate (PET); a second layer (200) which includes polyethylene (PE); a third layer (300) which includes at least one selected among roll paper, Korean paper, kraft paper, white board, and tissue paper; a fourth layer (400) which includes PE; a fifth layer (500) which includes at least one selected among aluminium (AL), an AL-laminated film, and an EVOH film or a silica film including a coloring pigment; and a sixth layer (600) which includes at least one selected among LLDPE, LDPE, PP, HDPE, and CPP. A lamination method is used for attachment for laminating the first layer (100) to the sixth layer (600). Therefore, the wrapping paper formed of a laminated sheet can be easily opened by a user even with hands containing oil or moisture by providing the user with paper texture; and can improve aesthetic sense by providing beautiful external appearances.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wrapping paper made of a laminated sheet,

More particularly, the present invention relates to a wrapper made of a laminated sheet for packaging a seed, a fruit, a cosmetic solution, a mask pack and the like, and a method for producing the wrapper.

In general, it is common to combine several packaging materials with characteristics to package seeds, fruits, cosmetic solutions, mask packs, etc., to compensate for defects in each material, and to provide aluminum A film containing a thin film is widely used as a wrapping paper.

This aluminum wrapper protects the inside of the wrapping paper from exposure to moisture and protects it from moisture, and it shows the unique color and texture of the metal, which gives a luxurious and refreshing effect.

However, in the case of the wrapping paper as described above, there is a drawback that cracks may occur in the wrapping paper after wrapping.

In addition, in order to prevent the user from slipping the hand in order to open the hand by hand without using a tool such as scissors, oil or moisture should not be present in the hand, and a considerable grip is required.

In order to overcome the above-mentioned problems, according to the Korean Patent No. 10-1496393 entitled " Packaging film, packaging material and packaging bag using the same, " And a packaging bag using the packaging material.

However, when the user needs to open the packaging bag manually by hand, there is a need to open the packaging bag in a state in which there is no oil or moisture in the hand so that the hand is not slippery.

According to another conventional technique for solving the above-mentioned problems, Japanese Patent Application No. 10-1680871 entitled " Waterproof laminated sheet having paper texture " has a paper texture layer having paper texture, Discloses a laminated sheet provided so as to be confirmed by a tactile sense.

When such a laminated sheet is used, the use of aluminum as the light-shielding layer causes a crack in the wrapping paper after packaging, resulting in poor gas barrier properties.

Registration No. 10-1496393 " Packaging film, packaging material and packaging bag using the same " Japanese Patent Registration No. 10-1680871 " Waterproof laminated sheet having paper texture "

It is an object of the present invention to solve the above problems and to provide a wrapping paper in which paper and aluminum are laminated between synthetic resin films to provide a paper texture to a user and easy to open with hand containing oil or moisture, A package sheet made of a laminated sheet whose contents are easily shielded from light and oxidation, and a method for producing the same.

Another object of the present invention is to provide a packaging sheet made of a laminated sheet which can be provided with an effect of being beautiful in color and appearance and can maintain gas barrier properties even after packaging, and a method for manufacturing the same.

It is another object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a packaging sheet made of a laminated sheet comprising an AL, an AL-laminated film, an EVOH film containing a coloring pigment, And a method for producing the same.

Another object of the present invention to solve the above problems is to provide a multilayer film which is capable of adhering various kinds of films by using a lamination method for laminating layers of the wrapping paper made of the laminated sheet, And a method for manufacturing the same.

A wrapping paper comprising a laminated sheet for packaging a seed, a fruit, a cosmetic solution and a mask pack, comprising: a first layer (100) comprising PET (polyethylene phthalate); a second layer (200) A third layer 300 including at least one selected from the group consisting of green paper, Korean paper, kraft paper, whiteboard paper or foil paper, a fourth layer 400 comprising PE (polyethylene), aluminum (AL) - a fifth layer (500) comprising at least one selected from the group consisting of a laminated film, an EVOH film containing a coloring pigment or a silica film, and a sixth layer comprising at least one selected from LLDPE, LDPE, PP, HDPE or CPP 600 are laminated in this order and are laminated by at least one selected from the lamination method to laminate the first layer 100 to the sixth layer 600.

The AL-laminated film is obtained by laminating an EVOH film, a silica film, an organic substance-deposited film or an inorganic substance-deposited film on one side of an AL film, and the thickness of the laminated film used for the Al- 0.01 to 0.04, and the adhesive may be at least one selected from the group consisting of a polyurethane-based adhesive, a two-component polyurethane-based adhesive, a solventless polyurethane-based adhesive, a homopolymer, a polyacrylate ester-based adhesive, a cyanoacrylate- Epoxy adhesive, reactive acrylic adhesive, reactive methacrylic adhesive, rubber adhesive, silicone adhesive, inorganic adhesive, epoxy adhesive, epoxy resin adhesive, epoxy adhesive, And at least one adhesive selected from the group consisting of adhesives, The seam method is characterized in that it is adhered by dry lamination, wet lamination, extrusion lamination or hot melt lamination.

The method for producing a wrapping paper comprising the laminated sheet is a laminated sheet for packaging a seed, a fruit, a cosmetic solution, and a mask pack. The laminated sheet for packaging includes a gravure printing ink, PET to be used for the first layer 100, The PE to be used for the fourth layer 400, the AL to be used for the fifth layer 500, the PE to be used for the second layer 500, the PE to be used for the third layer 300, the at least one selected from the group consisting of coriander, kraft paper, kraft paper, At least one selected from the group consisting of an AL-laminated film, an EVOH film containing a coloring pigment or a silica film, at least one selected from among LLDPE, LDPE, PP, HDPE or CPP to be used for the sixth layer 600, A printing step S200 of performing gravure printing on the other side of the first layer 100 and a printing step S200 of performing printing on the other side of the first layer 200 and the second layer 200, To the sixth layer (600) by a lamination method, a step (S300) of bonding, (S400) for cutting the film passed through the processing step (S300) by size or type so as to be suitable for the post-processing operation and the film after the step (S400) are cut or processed (Step S500).

Further, the AL-laminated film is obtained by laminating at least one selected from the group consisting of an EVOH film, a silica film, an organic substance deposited film and an inorganic substance deposited film on one side of the AL, and the thickness of the laminated film used for the Al- Layer adhesive, a two-component polyurethane adhesive, a solvent-free polyurethane adhesive, a homopolymer, a polyacrylate ester adhesive, a cyanoacrylate-based adhesive, Based adhesives, epoxy-based adhesives, reactive-type acrylic adhesives, reactive-type methacrylic adhesives, rubber-based adhesives, epoxy adhesives, ethylene-based adhesives, ethylene-based adhesive adhesives, cellulosic adhesives, At least one adhesive selected from the group consisting of silicone adhesives and inorganic adhesives The use, and the lamination process is a dry lamination, wet (Wet) lamination, characterized in that the adhesion by the at least one selected from extrusion lamination or hot melt lamination method.

In the case of using the wrapping paper made of the laminated sheet according to the present invention as described above, the paper can be easily opened with hands containing oil or moisture by providing the paper texture to the user, and the appearance is good and the aesthetic feeling is improved.

Further, since the EVOH film, the silica film, the organic vapor deposition film, or the inorganic vapor deposition film including the AL-shrink film, the color pigment, and the like are provided, it is provided as an environmentally friendly material that can be recycled, and is easily recycled. There is an advantage that the leakage rate caused by the cracking phenomenon of Al is lowered.

1 is a sectional view of a wrapping paper made of a laminated sheet according to the present invention.
2 is a process diagram of a wrapper made of a laminated sheet according to the present invention and a method of manufacturing the same.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a sectional view of a wrapping paper made of a laminated sheet according to the present invention.

The present invention relates to a packaging sheet made of a laminated sheet for packaging a seed, a fruit, a cosmetic solution and a mask pack, comprising a first layer 100 comprising PET (polyethylene phthalate), a second layer 100 comprising PE (polyethylene) A third layer 300 including PE, polyethylene, Aluminum, Aluminum (Aluminum), a laminated film (polyethylene terephthalate) , A fifth layer 500 comprising an EVOH film or a silica film containing a color pigment and a sixth layer 600 comprising LLDPE, LDPE, PP, HDPE or CPP are sequentially laminated, Is laminated by a lamination method to laminate the layer (100) to the sixth layer (600).

More specifically, in a laminated sheet for packaging a seed, a fruit, a cosmetic solution, a mask pack and the like, a PET (polyethylene phthalate), an OPP (Oriented Polypropylene), an ONY Oriented nylon, and NY (Nylon).

However, it is preferable to use a PET film.

The PET film maintains high tensile strength even at a thin thickness, has excellent thermal stability and dimensional stability, has excellent resistance to chemicals over various temperature ranges, exhibits the highest tensile strength among plastics, has high rigidity, Both melting point and softening point belong to the best class of plastic film. It has a wide usable temperature range of 60 ~ 150 ℃ and it does not change appearance even under the conditions of softening and shrinking by heating. have.

In addition, there is an advantage that it is easy to construct a wrapping paper (hereinafter referred to as wrapping paper) made of a laminated sheet of the present invention by using a lamination method together with a packaging material such as paper or AL.

In particular, the PET is provided on the outermost layer of the wrapping paper so that the printing operation can be performed on the first layer 100.

The printing operation may be carried out by gravure printing, offset printing, or the like. Preferably, uniformly pre-determined ink of a uniform thickness is adhered to the pattern as it is, so that it is easy to uniformly fill the ink even in a complicated shape. A method of forming a concave-shaped line portion on a plate or a roller to fill in the ink on the line portion, and unnecessary ink adhering to the protruding portion of the outer circumferential surface is scratched with a metal tool called a scratching, Gravure printing can be performed in such a manner that pressure is applied to the ink of the portion and transferred to the object.

In the case of the first layer 100, it is preferable that the first layer 100 has a thickness ratio of 1: 0.05 to 0.12 with respect to the sum of all layers of the wrapping paper.

If the thickness of the first layer is less than 1: 0.05 with respect to the sum of all the layers of the wrapping paper, it is too thin as a support of the wrapping paper, causing problems in printing or deteriorating heat resistance .

In addition, if the thickness ratio is 1: 0.12 or more, the first layer 100 is too thick and it takes a long time to dry.

Next, the second layer 200 may be provided on one surface of the first layer 100 and include at least one of PE (polyethylene) and PP (polypropylene).

However, it can be provided with PE, which is a material excellent in water resistance, high electrical insulation, excellent chemical resistance, oil resistance and the like because it has cold resistance which can endure to -20 deg.

In the case of the second layer 200, it is preferable that the total layer sum of the wrapping paper has a thickness ratio of 1: 0.10 to 0.18.

If the thickness ratio of the PE is less than 1: 0.10 with respect to the sum of all layers, waterproofing of the finally produced packaging paper is not easily performed, and the value of the packaging paper may deteriorate.

If the thickness ratio is 1: 0.18 or more, there is a disadvantage that adhesion is low and adhesion is not easy.

Next, the paper is provided on one side of the second layer 200, and the paper texture and texture are given to the outside of the packaging paper so that the packaging paper is not easily broken or torn due to the influence of external force, A third layer 300 including paper may be provided so that it can be easily opened with a hand containing oil or moisture because of excellent cutability.

More specifically, the third layer 300 may be formed of paper such as Norouge, Korean paper, kraft paper, white paperboard, and papermaking paper, but the present invention is not limited thereto.

However, it is preferable that the herringbone or the kraft paper is optionally provided.

The porridge is a type of relatively thin wrapping paper which is made by translating the Japanese notation of the roll paper into Korean and giving a gloss to one side. Chemical pulp and kraft pulp are used as raw materials. White roll with bleaching kraft as main raw material, S roll with main bleached or semi-bleached chemical pulp as main raw material, G roll with main pulp more than 30% as chemical pulp, shredded kraft, But the present invention is not limited thereto.

The rouge is favored as a small zone, envelope, simple wrapping paper, and also used for low-grade flyer advertising.

Furthermore, the kraft paper is a wrapping paper made mainly of unbleached kraft, which is a type of chemical pulp, and is mainly used for packaging of flour, sugar, fertilizer, feed, grain and the like.

Alternatively, a printing operation may be performed on the other side of the third layer 300, that is, the side contacting the second layer 200. The printing operation of the third layer 300 may be gravure printing, offset printing, or the like, preferably gravure printing.

Furthermore, it is preferable that the third layer 300 has a thickness ratio of 1: 0.24 to 0.32 with respect to the sum of all layers of the wrapping paper.

If the thickness ratio is less than 1: 0.24, the paper texture of the finally produced wrapping paper can not be sufficiently obtained and it is difficult to open easily with a hand with oil or water. If the ratio is 1: 0.32 or more, And the manufacturing cost is increased.

When the paper sheet is used, a process of rolling the paper sheet into a rolling mill may be performed to selectively stack the third layer 300 having a uniform thickness and to sufficiently expose the paper of the paper sheet.

Next, a fourth layer 400 may be provided on one side of the third layer 300 and include at least one of PE (polyethylene) and PP (polypropylene).

However, it can be provided with PE, which is a material excellent in water resistance, high electrical insulation, excellent chemical resistance, oil resistance and the like because it has cold resistance which can endure to -20 deg .

In the case of the fourth layer 400, it is preferable that the total layer sum of the wrapping paper has a thickness ratio of 1: 0.10 to 0.18.

If the thickness ratio of the PE is less than 1: 0.10 with respect to the sum of all layers, waterproofing of the finally produced packaging paper is not easily performed, and the value of the packaging paper may deteriorate.

If the thickness ratio is 1: 0.18 or more, there is a disadvantage that adhesion is low and adhesion is not easy.

Next, at least one of an EVOH ((Ethylene Vinyl Alcohol) film and a silica film, which is provided on one surface of the fourth layer 400 and includes AL (Aluminum), Aluminum A fifth layer 500 may be provided.

In general, the above-mentioned AL having excellent gas-shielding property, light-shielding property and decorative property due to gloss can be used.

Further, an EVOH film having oxygen barrier property and gas barrier property of about 100,000 times that of polyethylene as the ethylene-vinyl copolymer can be used as the thermoplastic crystalline resin having high gas-barrier property selectively. The colored pigment can also be applied to a silica film.

By including the EVOH film, it is possible to prevent the Al from being broken due to an external impact, which is advantageous in that it is more flexible.

When the EVOH film is used, polypropylene is laminated on the adhesive resin for the adhesive strength of the EVOH.

The EVOH film has an advantage that the gas barrier property can be changed according to the content of ethylene. Generally, ethylene is used in an amount of 5 to 95 parts by weight, preferably 25 to 64 parts by weight, based on 100 parts by weight of the EVOH.

If the ethylene content of the EVOH film is less than 25 parts by weight, the ethylene content may be too low to prevent the gas from being easily blocked. On the other hand, when the content of ethylene is more than 64 parts by weight, Can be.

More preferably, the ethylene content is 40 to 65 parts by weight.

At this time, an EVOH film containing a coloring pigment capable of selectively increasing the aesthetics and light shielding properties of the wrapping paper can be used.

The colored pigment may be provided in accordance with the purpose of use of the wrapping paper such as white, red, black, and the like.

Preferably, a coloring pigment based on red or black may be provided to maintain the light shielding property of Al.

Furthermore, when the Al film is replaced with a silica film, there is no difference in appearance and function between the Al film and the case where the Al film is used.

In addition, when the EVOH film or the silica film is used, since the Al is not completely separated in the recycling process of the wrapping paper including the Al film, the problem of being provided in the form of black or gray dots in the recycled product using the recycled pulp is compensated There is an advantage that a more flexible wrapping paper can be manufactured.

In addition, since the use of Al requires a separate process of separating the paper and the Al film, there is a disadvantage that the recycling rate is 30% or less. In addition, there is an advantage that it is economically effective to provide synthetic resin instead of Al.

Also, there is an advantage that a crack is generated by the Al, and the leakage rate caused by cracking of the aluminum due to the circulation process or external impact of the wrapping paper is lowered.

In the case of the fifth layer 500, it is preferable that the fifth layer 500 has a thickness ratio of 1: 0.01 to 0.08 with respect to the total layer sum of the wrapping paper.

If the thickness ratio is less than 1: 0.01 with respect to the sum of all the layers, oxygen shielding and shielding of the final packaging paper can be easily performed The storage period of the packaged product may be shortened. If the thickness ratio is 1: 0.08 or more, a phenomenon that is easily broken by the external impact is generated and the manufacturing cost is increased Lt; / RTI >

Alternatively, an AL-laminated film may be used, which may comprise one or more films of an EVOH film, a silica film, an organic vapor deposited film and an inorganic vapor deposited film laminated on one side of the AL .

In this case, the thickness of the laminated film used in the AL-laminated film may be 1: 0.01 to 0.04 with respect to the sum of the total layers.

If the thickness ratio is less than 1: 0.01 with respect to the total sum of all layers, the gas barrier property is lowered. If the thickness ratio is 1: 0.04 or more, the manufacturing cost is increased.

Next, the fifth layer 500 may be provided on one side of the fifth layer 500 and may be formed of a material such as linear low density polyethylene (LLDPE), low density polyethylene (LDPE), polypropylene (PP), high density polyethylene (HDPE), or casting polypropylene A sixth layer 600 may be provided that includes at least one.

Preferably LLDPE, which is a synthetic resin developed to be suitable for packaging materials, industrial and agricultural films, which is referred to as third polyethylene.

The LLDPE has a somewhat physical property between LDPE and HDPE, but has excellent balance of excellent toughness and transparency, heat resistance and low cost.

The sixth layer 500 preferably has a thickness ratio of 1: 0.24 to 0.32 with respect to the total layer sum of the wrapping paper.

If the thickness of the LLDPE layer is less than 1: 0.24 with respect to the sum of all the layers of the wrapping paper, the thickness of the layer excluding the LLDPE layer is increased to increase the manufacturing cost, 1: 0.32 or more, neck-in tends to occur.

In addition, the first layer 100 to the sixth layer 600 may be formed by a lamination method.

At this time, the lamination method may be manufactured by at least one method selected from dry lamination, wet lamination, extrusion lamination (T-die) and hot melt lamination.

And can be produced by dry lamination method which is easy to manufacture various kinds of film adhesion and high functional composite film.

When the dry lamination method is used, an adhesive for a dry lamination method may be used.

The dry lamination adhesive may be at least one selected from the group consisting of a polyurethane adhesive, a two-component polyurethane adhesive, a solventless polyurethane adhesive, a homopolymer, a polyacrylate ester adhesive, a cyanoacrylate adhesive, an ethylene copolymer adhesive, a cellulosic adhesive, One or more adhesives selected from ester adhesives, polyamide adhesives, amino resin adhesives, phenol resin adhesives, epoxy adhesives, reactive acrylic adhesives, reactive methacrylic adhesives, rubber adhesives, silicone adhesives and inorganic adhesives can be used .

Preferably, a two-pack type polyurethane adhesive mainly used in the dry lamination method can be used.

This is because the flowability at the end of the evaporation of the solvent and the subsequent curing reaction are rich in heat resistance, water resistance, cold resistance, etc., and a flexible and strong film can be formed and sufficient adhesion can be maintained.

2 is a process diagram of a wrapping paper made of a laminated sheet according to the present invention.

Hereinafter, a process for producing a wrapper made of a laminated sheet of the present invention will be described.

The manufacturing process may include a material preparing step (S100), a printing step (S200), a bonding process step (S300), an alginating process step (S400), and a packaging material producing step (S500).

The thickness and the components of each layer have been described above, and therefore, the description thereof will be omitted.

The material preparing step S100 is a step of preparing a material for the wrapping paper, which is a step of preparing the material for the wrapping paper, the ink for gravure printing, the PET to be used for the first layer 100, the PE to be used for the second layer 200, A PE to be used for the fourth layer 400, an AL, an AL-laminated film to be used for the fifth layer 500, an EVOH film or a silica film containing a coloring pigment, LDPE, PP, HDPE or CPP to be used for the sixth layer 600, an adhesive, and the like.

After the material preparing step (S100), a printing step (S200) is performed. The printing step S200 may be performed on the other side of the first layer 100 using the gravure printing ink and the film of the first layer 100 by a gravure printing method.

Next, a bonding process step (S300) of laminating the first layer (100) through the printing step (S200) with the second layer (200) to the sixth layer (600) may be performed. A lamination method can be carried out in which all the solvent is evaporated and then the film is tensed using an adhesive in an uncured liquid state or a hot melt state.

 More specifically, a dry lamination method can be carried out. After the two-component polyurethane adhesive of the above-mentioned adhesive is applied to the first layer (100) to the sixth layer (600), the solvent is volatilized, To obtain a laminate.

At this time, a method of laminating a film is to press-laminate between a metal roll heated at 50 to 120 ° C and a rubber roll, and to pass through a cooling roll.

If the metal roll is heated to less than 50 캜, there is a problem that the film of each layer is not pressed and can be separated, and when heated to 120 캜 or more, it may be difficult to produce the film with a certain thickness.

Next, a cutting process (S400) may be performed in which the film passed through the joining process step (S300) is cut into standard sizes or types so as to be suitable for a post-process.

Next, a wrapping paper manufacturing step (S500) may be performed, which is a process of cutting the film that has undergone the above-described steps (S400).

≪ Example 1 > Preparation of a wrapping paper made of a laminated sheet according to the present invention .

1. PET for use in the first layer 100, PE to be used for the second layer 200, noruji to be used for the third layer 300, PE to be used for the fourth layer 400, An AL to be used for the first layer 500, LLDPE to be used for the sixth layer 600, a two-pack type polyurethane adhesive, and the like.

2. Print on the other side of the first layer through a gravure printing method.

3. The printed first layer and the second to sixth layers are laminated by a dry lamination method including a two-pack type polyurethane adhesive.

4. The film subjected to the dry lamination method is cut by size or type and cut.

5. The cut film is cut to meet the application, and a wrapping paper having one side opened is produced.

≪ Comparative Example 1 > Production of a wrapping paper made of a laminated sheet containing an AL- laminated film .

The same procedure as in Example 1 was carried out except for using an Al-laminated film prepared by adding an EVOH film to one side of Al as an Al-laminated film in place of Al in the second layer 200 in producing the wrapping paper.

≪ Test Example 1 > Production of a wrapping paper made of a laminated sheet containing LDPE .

The procedure of Example 1 was repeated except that LDPE was added instead of LLDPE in the preparation of the wrapping paper.

≪ Test Example 2 > Production of a wrapping paper made of a laminated sheet containing HDPE .

The procedure of Example 1 was repeated except that HDPE was added instead of LLDPE in the preparation of the wrapping paper.

≪ Test Example 3 > Preparation of a wrapping paper made of a laminated sheet containing PP .

The procedure of Example 1 was repeated except that PP was added instead of LLDPE in the preparation of the wrapping paper.

≪ Test Example 4 > Production of a wrapping paper made of a laminated sheet containing CPP .

The procedure of Example 1 was repeated except that CPP was added instead of LLDPE in the preparation of the wrapping paper.

Al and Al- Laminating film  Comparison of consumption of potassium permanganate by temperature of packaging paper. (mg / L) 60 占 폚 X 30 minutes 95 ° C X 30 min 100 ° C X 2 hours Remarks Example 1 0.1 0.4 0.1 Comparative Example 1 0.1 0.3 -

The test method for the consumption of potassium permanganate by the above temperature was carried out in compliance with the test method described in the apparatus and the container packaging.

As shown in Table 1 above, overall consumption was lower than the standard reference value of 10 mg / L. The above-described potassium permanganate consumption measurement showed that the amount of potassium permanganate consumed in Comparative Example 1 was lower than that in Example 1 at a high temperature by comparing the amount of the easily oxidizable substance with that of Example 1 and Comparative Example 1.

Therefore, it can be seen that the consumed amount of potassium permanganate in the Al-laminated film laminated with a film on one side of Al is smaller than the case where Al is used alone.

Vapor residues according to the fifth layer (500) material compare.( mg / L) Leaching solvent 60 占 폚 X 30 minutes 95 ° C X 30 min 100 ° C X 2 hours Example 1 water 1.2 1.5 4% acetic acid 0.2 3.7 11.5 20% alcohol 0.2 0.7 3.4 n-heptane 69.0 180.0 - Test Example 1 water 1.3 1.6 - 4% acetic acid 0.2 3.8 12.0 20% alcohol 0.2 0.8 4.5 n-heptane 71.0 182.0 - Test Example 2 water 1.1 1.4 - 4% acetic acid 0.1 3.5 10.0 20% alcohol 0.1 0.5 2.1 n-heptane 67.0 175.0 - Test Example 3 water 1.4 1.8 - 4% acetic acid 0.4 3.9 12.4 20% alcohol 0.3 0.8 5.3 n-heptane 75.0 186.0 - Test Example 4 water 1.4 1.9 - 4% acetic acid 0.4 3.9 12.4 20% alcohol 0.4 0.9 5.4 n-heptane 76.0 185.0 -

The test method of the comparison of the evaporation residue according to the material of the fifth layer (500) was performed in compliance with the test method described in the apparatus and the packing operation.

As shown in the above Table 2, it was found that the content did not exceed the reference value of the evaporation residue of 30 ppm in all of the use temperatures exceeding 100 캜 regardless of the kind of the leaching solvent (water, 4% acetic acid, 20% alcohol and n-heptane) .

However, overall Example 1 showed lower values than Test Examples 1, 3 and 4, but higher values than Test Example 2.

This is because the fifth layer 500 is made of HDPE, which is a result of the characteristics of HDPE having a high softening point and excellent stiffness and hardness.

However, when HDPE is used, there may be a disadvantage that the use range is narrowed due to the impact strength and tear strength of HDPE.

In addition, when LDPE is used, it is preferable to use LLDPE having intermediate properties between LDPE and HDPE because it has a disadvantage in that the product in the wrapping paper can not be stored for a long time because of high vapor permeability and gas permeability.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. There will be.

100: 1st layer
200: Second layer
300: Third floor
400: fourth floor
500: fifth floor
600: Sixth floor
S100: Material preparation step
S200: Printing step
S300: Bonding step
S400: Altar process step
S500: Wrapping paper production step

Claims (4)

1. A wrapping paper comprising a laminated sheet for packing seeds, fruit, cosmetic solution and mask pack,
A first layer 100 comprising PET (Polyethylene phthalate);
A second layer 200 comprising PE (polyethylene);
A third layer (300) comprising at least one selected from the group consisting of corundum, korean paper, kraft paper, white board paper or foil paper;
A fourth layer 400 comprising PE (Polyethylene);
A fifth layer 500 comprising at least one selected from the group consisting of AL (Aluminum), AL (Aluminum) -shaped film, EVOH film containing colored pigment, or silica film; And
A sixth layer 600 including at least one selected from the group consisting of LLDPE, LDPE, PP, HDPE, and CPP;
Wherein the first layer (100) to the sixth layer (600) are laminated by a lamination method to laminate the first layer (100) to the sixth layer (600).
The method according to claim 1,
The AL-laminated film is obtained by laminating at least one selected from the group consisting of an EVOH film, a silica film, an organic substance-deposited film and an inorganic substance-deposited film on one surface of an AL film,
The thickness of the laminated film used in the Al-laminated film is in the range of 1: 0.01 to 0.04 with respect to the sum of all layers,
Preferably,
A polyurethane adhesive, a two-component polyurethane adhesive, a solventless polyurethane adhesive, a homopolymer, a polyacrylate ester adhesive, a cyanoacrylate adhesive, an ethylene copolymer adhesive, a cellulosic adhesive, a polyester adhesive, Wherein one or more adhesives selected from the group consisting of an adhesive agent, an amino resin adhesive, a phenol resin adhesive, an epoxy adhesive, a reactive acrylic adhesive, a reactive methacrylic adhesive, a rubber adhesive, a silicone adhesive,
Wherein the lamination method is bonded by at least one method selected from dry lamination, wet lamination, extrusion lamination or hot melt lamination.
1. A laminated sheet for packaging a seed, a fruit, a cosmetic solution, and a mask pack,
At least one of gravure printing ink, PET to be used for the first layer 100, PE to be used for the second layer 200, noruji to be used for the third layer 300, kraft paper, kraft paper, At least one selected from the PE to be used for the fourth layer 400, the AL, the AL-laminated film to be used for the fifth layer 500, the EVOH film or the silica film including the coloring pigment, the LLDPE , A material preparation step (SlOO) for preparing at least one selected from LDPE, PP, HDPE or CPP and an adhesive;
A printing step (S200) of performing gravure printing on the other side of the first layer (100);
A bonding process step (S300) of bonding the first layer (200) through the printing step (S200) and the second layer (200) to the sixth layer (600) by a lamination method;
An altar process step (S400) of cutting the film passed through the joining process step (S300) by size or type so as to be suitable for a post-process operation; And
A packaging paper manufacturing step (S500) of cutting or processing the film having undergone the heating process step (S400) so as to meet the application;
Wherein the laminated sheet is a laminated sheet.
The method of claim 3,
The AL-laminated film is obtained by laminating at least one selected from the group consisting of an EVOH film, a silica film, an organic substance-deposited film and an inorganic substance-deposited film on one side of an AL,
The thickness of the laminated film used in the Al-laminated film is in the range of 1: 0.01 to 0.04 with respect to the sum of all layers,
Preferably,
A polyurethane adhesive, a two-component polyurethane adhesive, a solventless polyurethane adhesive, a homopolymer, a polyacrylate ester adhesive, a cyanoacrylate adhesive, an ethylene copolymer adhesive, a cellulosic adhesive, a polyester adhesive, Based adhesive, an amino resin adhesive, a phenol resin adhesive, an epoxy adhesive, a reactive acrylic adhesive, a reactive methacrylic adhesive, a rubber adhesive, a silicone adhesive and an inorganic adhesive,
In the lamination method,
Wherein the laminated sheet is adhered by dry lamination, wet lamination, extrusion lamination or hot melt lamination.

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