The package envelope for packing bread

Abstract

The present invention relates to a bread packaging bag, wherein the bag is composed of a paper substrate layer, a coating layer, an adhesive layer, and a transparent vinyl layer, and the transparent vinyl layer is installed so as to be positioned on the front surface, thereby making it easy to check the contents inside the bag from the outside, and having excellent oil and water resistance, it is possible to prevent the problem of the bag tearing due to moisture or oil.

Description

Technology Field

[0001] The present invention relates to a bread packaging bag, wherein a transparent vinyl film is installed on the front surface to facilitate easy inspection of the contents, and a coating layer is formed on the inside to provide excellent oil and water resistance, thereby preventing the problem of the bag tearing due to moisture or oil. Background Technology

[0002] Generally, kraft paper or brocade paper is widely used as packaging for baked goods such as donuts and hotteok. Brocade paper is a type of paper primarily used for food packaging, characterized by excellent oil resistance, water resistance, and odor resistance. Kraft paper is a packaging paper made primarily from unbleached kraft pulp, a type of chemical pulp, and is used for packaging cement, flour, sugar, fertilizer, animal feed, grains, and the like. Since most of these brocade and kraft papers are made entirely of paper, there is a problem in that it is difficult to check the contents inside. Furthermore, the packaging bag can be easily damaged by the oil and moisture of the contents, potentially leading to food contamination.

[0003] Patent Document 1 relates to an adhesive vinyl packaging sheet for bread packaging, wherein an adhesive portion is provided on the outer side of the receiving portion so as to prevent contact between the bread and the adhesive portion during the process of taking out the bread.

[0004] Patent Document 2 relates to a paper bag used for packaging food or pharmaceuticals, wherein a steam release hole is formed in the bag to reduce the wetting of the paper bag or the condensation of moisture inside the paper bag, thereby preventing the food from becoming soggy.

[0005] Patent Document 3 relates to a food packaging paper, wherein a coating paper is attached to the outer surface of a conventional cardboard, thereby reducing the cost of the packaging paper and thus reducing the manufacturing cost of the packaging box. Prior art literature

[0006] Published Utility Model Gazette No. 20-2021-0000354 (Publication Date: Aug. 9, 2022) Registered Utility Model Gazette No. 20-0450706 (Announcement Date: Oct. 25, 2010) Registered Utility Model Gazette No. 20-0418602 (Announcement Date: June 12, 2006) The problem to be solved

[0007] The present invention relates to a bread packaging bag and aims to provide a bread packaging bag composed of a paper substrate layer, a coating layer, an adhesive layer, and a transparent vinyl layer, manufactured such that a transparent vinyl is positioned on the front surface, thereby facilitating easy inspection of the contents and preventing damage to the bag caused by oil and moisture through excellent water and oil resistance. means of solving the problem

[0008] The present invention relates to a bread packaging bag, wherein the bread packaging bag forms an internal receiving space, has an open top and a heat-sealed bottom, and has folded portions formed in an 'M' shape on both sides, wherein the bread packaging bag is composed of a paper base layer, a coating layer, an adhesive layer, and a transparent vinyl layer that are laminated together, wherein the paper base layer is composed of kraft paper, the coating layer is formed of a resin coating layer, and the transparent vinyl layer is composed of OPP vinyl, wherein the transparent vinyl layer is installed over the entire interior of the bread packaging bag and the paper base layer is installed on the outer surface of the transparent vinyl layer, wherein the coating layer formed on one side of the paper base layer is installed to overlap with the transparent vinyl layer, and wherein the paper base layer is installed so as to partially wrap around only a portion of the transparent vinyl layer on both sides of the front surface, so that a portion of the front surface consists only of the transparent vinyl layer, thereby forming a transparent window.

[0009] In addition, the present invention has a bread packaging bag that forms an internal receiving space, with the top and one side open, and the bottom and the other side sealed in an 'L' shape by heat sealing.

[0010] The bread packaging bag described above is composed of a paper substrate layer, a coating layer, an adhesive layer, and a transparent vinyl layer, wherein the paper substrate layer is composed of parchment paper (food paper), the coating layer forms a resin coating layer, the transparent vinyl layer is composed of OPP vinyl, the paper substrate layer is square in shape, the transparent vinyl layer is formed as a rectangle with the same width as the paper substrate layer and a shorter length, and the coating layer is formed on one side of the paper substrate layer, and the bread packaging bag is characterized in that the paper substrate layer is installed such that the side on which the coating layer is formed faces inward, and the transparent vinyl layer composed of OPP vinyl is installed on the front surface so that the top of the paper substrate layer is partially exposed. Effects of the invention

[0011] The present invention relates to a bread packaging bag, wherein the bag is manufactured such that a transparent vinyl film is positioned on the front surface, thereby facilitating easy inspection of the contents. Furthermore, by forming an internal coating layer, it offers excellent oil and water resistance, which has the advantage of preventing damage such as tearing of the bag.

[0012] In addition, the present invention has the advantage of preventing moisture loss in bread by forming a coating layer, which provides excellent oil and water resistance. Brief explanation of the drawing

[0014] FIG. 1 is a perspective view of Example 1 of a bread packaging bag according to the present invention. FIG. 2 is a cross-sectional view of the configuration of Example 1 of a bread packaging bag according to the present invention. FIG. 3 is a diagram showing the usage state of Example 1 of a bread packaging bag according to the present invention. FIG. 4 is a perspective view of Example 2 of a bread packaging bag according to the present invention. FIG. 5 is a cross-sectional view of the configuration of Example 2 of a bread packaging bag according to the present invention. FIG. 6 is a diagram showing the usage state of Example 2 of a bread packaging bag according to the present invention. Specific details for implementing the invention

[0015] The present invention relates to a bread packaging bag, which is composed of a paper substrate layer, a coating layer, an adhesive layer, and a transparent vinyl layer, with the transparent vinyl layer positioned on the front surface. A detailed description will be provided through the following Examples 1 and 2.

[0016] Example 1 relates to an 'M'-shaped bread packaging bag.

[0017] FIG. 1 illustrates a perspective view of Example 1. As shown in FIG. 1, Example 1 of the present invention is a rectangular bread packaging bag (10) with an empty space formed inside to accommodate bread. More specifically, the bag (10) of Example 1 of the present invention is laminated with a paper substrate layer (16), a coating layer (18), an adhesive layer (20), and a transparent vinyl layer (22). It forms an accommodating space (12) inside, has an open top, is heat-sealed at the bottom, and has folded sections (14) formed in an 'M' shape on both sides. The paper substrate layer (16) is a layer of paper material, and in Example 1 of the present invention, it is preferable to use kraft paper. The coating layer (18) is a coating layer (18) formed on one side of the paper substrate layer (16). In the present invention, it is preferable to be a resin coating, and most preferable to be a PE coating. At this time, the portion where the coating layer (18) is formed is positioned in the direction of the inside of the envelope (10). The adhesive layer (20) is a layer for bonding the paper substrate layer (16) on which the coating layer (18) is formed and the transparent vinyl layer (22) to each other. The transparent vinyl layer (22) is a layer composed of transparent vinyl, which allows for verification of the contents inside. At this time, in the present invention, it is most preferable to use OPP (Oriented polypropylene) vinyl, but it is not limited thereto.

[0018] FIG. 2 illustrates a cross-sectional view of the envelope configuration of Example 1 of the present invention. As shown in FIG. 2, the envelope (10) of Example 1 of the present invention is composed of a paper substrate layer (16), a coating layer (18), an adhesive layer (20), and a transparent vinyl layer (22), which are laminated together. More specifically, it is preferable that the paper substrate layer (16), the coating layer (18), the adhesive layer (20), and the transparent vinyl layer (22) be laminated by bonding at a temperature of 160°C and then curing at 40°C for 20 hours. At this time, the envelope (10) of Example 1 of the present invention can further improve water resistance and oil resistance through the effect of double coating by additionally installing a transparent vinyl layer (22) on top of the coating layer (18).

[0019] FIG. 3 illustrates the usage state of Example 1 of the present invention. As shown in FIG. 3, the envelope (10) of Example 1 is formed as a rectangular envelope, with a receiving space (12) formed inside, the top is open, the bottom is sealed by heat sealing, and both sides have ‘M’ shaped fold portions (14). In detail, an OPP transparent vinyl layer (22) is installed over the entire interior of the envelope, and a paper substrate layer (16) is installed on the outer surface of the transparent vinyl layer (22) so that the coating layer (18) faces inward. The front is installed to wrap only a portion of the transparent vinyl layer (22) on both sides, thereby forming a portion of the front consisting only of the transparent vinyl layer (22). That is, the entire outer surface of the envelope (10) is formed of the paper substrate layer (16), while a portion of the front consists only of the transparent vinyl layer (22), thereby forming a transparent window. By manufacturing the envelope (10) of Example 1 of the present invention in this manner, it is easy to check the contents inside the envelope (10) from the outside, and it is also possible to prevent damage to the envelope (10) caused by oil and moisture due to the double coating effect of the coating layer (18) and the transparent vinyl layer (22). In addition, when accommodating contents, if the volume or quantity of the contents is large, the folding parts (14) on both sides can be unfolded to expand the internal storage space of the envelope (10), thereby enabling the accommodation of the contents. Furthermore, after accommodating contents, it is possible to fold the open part at the top to prevent foreign substances from entering the interior.

[0020] Example 2 of the present invention relates to an 'L'-shaped bread packaging bag.

[0021] FIG. 4 illustrates a perspective view of Example 2 of the present invention. As shown in FIG. 4, Example 2 of the present invention is a square bag (100) with an empty space formed inside to accommodate bread. More specifically, the bag (100) of Example 2 of the present invention forms a receiving space (102) of the empty space to accommodate bread inside, with the top and one side open, and the bottom and the other side heat-sealed in an 'L' shape to seal it, and is composed of a paper substrate layer (104), a coating layer (106), an adhesive layer (108), and a transparent vinyl layer (110). The paper substrate layer (104) is a layer of paper material, and in Example 2 of the present invention, it is preferable to use parchment paper (food paper). The coating layer (106) is a coating layer (106) formed on one side of the paper substrate layer (104), and in the present invention, it is preferable to be a resin coating, and most preferable to be a PE coating. At this time, by forming a coating layer (106), it is possible to prevent oil and moisture from penetrating into the paper substrate layer (104). The adhesive layer (108) is a layer for bonding the paper substrate layer (104) on which the coating layer (106) is formed and the transparent vinyl layer (110) to each other. The transparent vinyl layer (110) is a layer composed of transparent vinyl, which allows for the verification of the contents inside. At this time, in the present invention, it is most preferable to use OPP (Oriented polypropylene) vinyl, but it is not limited thereto.

[0022] FIG. 5 is a cross-sectional view illustrating the configuration of Example 2 of the present invention. As shown in FIG. 5, the envelope (100) of Example 2 of the present invention is composed of a paper substrate layer (104), a coating layer (106), an adhesive layer (108), and a transparent vinyl layer (110). More specifically, the envelope (100) of Example 2 of the present invention, composed of a paper substrate layer (104), a coating layer (106), an adhesive layer (108), and a transparent vinyl layer (110), is sealed airtightly by heat sealing the bottom and other sides. When this state is achieved, Example 2 of the present invention is sealed in an 'L' shape. At this time, it is preferable that the adhesive layer (106) is formed along the sealed portion as the adhesive layer (106) is sealed in an 'L' shape.

[0023] FIG. 6 illustrates the usage state of Example 2 of the present invention. As shown in FIG. 6, a transparent vinyl layer (110) is installed on the front surface of the envelope (100) of Example 2 of the present invention, thereby making it easy to check the contents and preventing damage to the envelope (100) caused by moisture or oil from the contents. Specifically, the envelope (100) has an OPP transparent vinyl layer (110) positioned on the front surface and a paper substrate layer (104) with a coating layer (106) formed thereon positioned on the back surface, so that the bottom and other sides are sealed. At this time, it is preferable that the paper substrate layer (104) be installed so that the coating layer (106) faces inward, that is, so that the coating layer (106) comes into contact with food. At this time, the paper substrate layer (104) has a square shape, and the transparent vinyl layer (110) installed on the front has a rectangular shape with the same width as the paper substrate layer (104) and a shorter length. When the transparent vinyl layer (110) is installed on the front, the top of the paper substrate layer (104) is partially exposed. By being installed in this state, the transparent vinyl layer (110) serves as a transparent window that allows the contents to be checked and as a door that opens and closes the opening of the bag. Additionally, when bread is placed into the bag's receiving space, the bread is contained between the inner coating layer (106) and the front transparent vinyl layer (110), making it possible to prevent the bag (100) from tearing due to oil or moisture. Explanation of the symbols

[0024] 10: Envelope, 12: Storage space 14: Fold 16: Paper substrate layer 18: Coating layer 20: Adhesion layer 22: Transparent vinyl layer 100: Envelope 102: Storage space 104: Paper substrate layer 106: Coating layer 108: Adhesive layer 110: Transparent vinyl layer

Claims

Claim 1 In a bread packaging bag, the bread packaging bag (10) forms an internal receiving space (12), has an open top and a heat-sealed bottom, and has folded portions (14) formed in an 'M' shape on both sides, and the bread packaging bag (10) is composed of a paper base layer (16), a coating layer (18), an adhesive layer (20), and a transparent vinyl layer (22) that are laminated together, wherein the paper base layer (16) is composed of kraft paper, the coating layer (18) is formed of a resin coating layer, and the transparent vinyl layer (22) is composed of OPP vinyl, wherein the transparent vinyl layer (22) is installed over the entire interior of the bread packaging bag (10), and the paper base layer (16) is installed on the outer surface of the transparent vinyl layer (22), and the coating layer (18) formed on one side of the paper base layer (16) is connected to the transparent vinyl layer (22). A bread packaging bag characterized by being installed so as to overlap, and on the front, the paper substrate layer (16) is installed so as to partially wrap around both sides of the transparent vinyl layer (22), and the front part is made only of the transparent vinyl layer (22) to form a transparent window. Claim 2 In a bread packaging bag, the bread packaging bag (100) forms an internal receiving space (102), the top and one side are open, and the bottom and the other side are sealed in an 'L' shape by heat sealing. The bread packaging bag (100) is composed of a paper base layer (104), a coating layer (106), an adhesive layer (108), and a transparent vinyl layer (110). The paper base layer (104) is composed of paper (food paper), the coating layer (106) forms a resin coating layer, and the transparent vinyl layer (110) is composed of OPP vinyl. The paper base layer (104) is square-shaped, and the transparent vinyl layer (110) is formed as a rectangle with the same width as the paper base layer (104) and a shorter length. The coating layer (106) is formed on one side of the paper base layer (104). A bread packaging bag (100) is characterized by having a paper substrate layer (104) installed such that one side having a coating layer (106) formed faces inward, and a transparent vinyl layer (110) made of OPP vinyl installed on the front, with the top of the paper substrate layer (104) partially exposed. Claim 3 A bread packaging bag according to claim 1, characterized in that the paper substrate layer (16), coating layer (18), adhesive layer (20), and transparent vinyl layer (22) are laminated by bonding at a temperature of 160°C and then curing at 40°C for 20 hours.

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