KR-20260067773-A - FOOD PACKAGING CONTAINER SEALING FILM

Abstract

The present invention relates to a sealing film for a food packaging container, comprising: a first base film composed of a first porous polymer material; a second base film composed of a second porous polymer material and formed in contact with the first base film; a protective film disposed on the upper part of the first base film and comprising a first through hole; and a support film disposed on the lower part of the second base film and comprising a second through hole that overlaps with the first through hole in at least a portion.

Inventors

• 김덕규

Assignees

• 농업회사법인 솜씨가 주식회사

Dates

Publication Date

20260513

Application Date

20241106

Claims (6)

1. A first base film composed of a first porous polymer material; A second base film composed of a second porous polymer material and configured to be in contact with the first base film; A protective film disposed on the upper portion of the first base film and comprising a first through hole; and A food packaging container sealing film comprising a support film disposed on the lower part of the second base film and including a second through hole that overlaps with the first through hole in at least a portion.
2. In claim 1, the first and second base films are A food packaging container sealing film characterized by being disposed on a part of the support film and fitted to cover the penetration surface of the container body to pore-seal the container body.
3. In paragraph 2, the first and second base films are A food packaging container sealing film characterized by direct contact formed by compression bonding with heat and pressure of specific standards.
4. In paragraph 2, the support film is A food packaging container sealing film characterized by being formed to cover from the lower surface of the penetration surface of the container body to the outer upper edge of the container body, thereby providing packaging bonding strength to the container body.
5. In paragraph 1, A food packaging container sealing film characterized by further including a through-hole protective cap that forms an air cavity facing the upper part of the first through-hole, includes an air outlet on the side, and is removablely coupled to the protective film.
6. In paragraph 5, the above-mentioned through-hole protective cap A food packaging container sealing film characterized by having a hole covered with aluminum material on the upper surface so that a straw can be inserted into the interior of the container body.

Description

Food Packaging Container Sealing Film The present invention relates to a sealing film, and more specifically, to a food packaging container sealing film that can be used for packaging and storing fermented foods to improve airtightness and maintain freshness. Due to the nature of food, spoilage occurs after a certain period of time; therefore, containers used for long-term preservation must maintain airtight properties that block contact between the contained food and external air or moisture. However, a sealed method that simply completely isolates food from the outside may not always be suitable depending on the type of food being stored. For example, since fermented foods such as kimchi generate gas, specifically carbon dioxide, during the fermentation process, storing them in an airtight container may cause damage such as the container swelling, cracking, or bursting due to the gas, or the fermented food contained within may spoil easily. As such, there are limitations to the storage or distribution of fermented foods, particularly with existing airtight sealing methods, and there is a growing demand for airtight packaging methods for food that can maintain the freshness of the contained fermented food. FIG. 1 is a cross-sectional view showing a sealing film according to one embodiment of the present invention. Figure 2 is an exploded cross-sectional view showing a part of the sealing film of Figure 1. Figure 3 is a cross-sectional view showing the sealing film of Figure 1 bonded to the container body. The description of the present invention is merely an example for structural or functional explanation, and therefore the scope of the present invention should not be interpreted as being limited by the examples described in the text. That is, since the examples are subject to various modifications and may take various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical concept. Furthermore, the objectives or effects presented in the present invention do not imply that a specific example must include all of them or only such effects; therefore, the scope of the present invention should not be understood as being limited by them. Meanwhile, the meaning of the terms described in this application should be understood as follows. Terms such as "first," "second," etc., are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that one component is "connected" to another component, it should be understood that it may be directly connected to that other component, or that there may be other components in between. Conversely, when it is stated that one component is "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationships between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way. A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the implemented features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. In each step, identifiers (e.g., a, b, c, etc.) are used for convenience of explanation and do not describe the order of the steps; the steps may occur differently from the specified order unless a specific order is clearly indicated in the context. That is, the steps may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order. Unless otherwise defined, all terms used herein have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the context of the relevant technology and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined in this application. FIG. 1 is a cross-sectional view showing a sealing film according to one embodiment of the present invention, FIG. 2 is an exploded cross-sectional view showing a part of the sealing film of FIG. 1, and FIG. 3 is a cross-sectional view showing the sealing film of FIG. 1 coupled to a container body. First, referring to FIGS. 1 and FIGS. 2, the sealing film (100) may be composed of multiple layers including a first base film (110), a second base film (120), a protective film (130), and a support film (140). Th