KR-102964519-B1 - Air Pouch Including Eco-Friendly Non-toxic Flame-Retardant Composition

Abstract

The present invention relates to an air pouch comprising an eco-friendly, non-toxic flame-retardant composition, wherein a structure is formed in which air for cushioning is filled inside a substrate layer comprising paper or fiber, and a flame-retardant treatment layer made of an eco-friendly, non-toxic flame-retardant composition is applied to the substrate layer, thereby enabling the simultaneous securing of lightweightness, cushioning performance, and flame-retardant performance. The air pouch according to the present invention is configured with a concept that encompasses various air layer-based packaging material forms such as air cushions, air column bags, and air cap bags, and the flame-retardant treatment layer is formed from a water-based eco-friendly, non-toxic flame-retardant composition comprising monoammonium phosphate, boric acid, glycerin, triethanolamine, and water, and the flame-retardant composition effectively suppresses the spread of combustion by inducing expansion, heat absorption, and carbonization reactions when a fire occurs, thereby forming a carbonized layer on the surface of the substrate layer.

Inventors

• 김정훈

Assignees

• 주식회사 브레인드롭

Dates

Publication Date

20260513

Application Date

20260109

Claims (5)

1. A substrate layer comprising a paper or fiber layer having a structure filled with air for cushioning inside; and It includes a flame-retardant treatment layer for imparting a flame-retardant function to the above substrate layer; The flame-retardant treatment layer is formed from an eco-friendly, non-toxic flame-retardant composition comprising monoammonium phosphate, boric acid, glycerin, triethanolamine, and water, An air pouch comprising an eco-friendly, non-toxic flame-retardant composition, characterized in that, in the event of a fire, the eco-friendly, non-toxic flame-retardant composition expands, absorbs heat, and performs carbonization by heat to form a carbonized layer on the surface of the substrate layer, thereby suppressing the spread of combustion.
2. In paragraph 1, The above eco-friendly, non-toxic flame-retardant composition is, 15 to 30 weight% of the above monoammonium phosphate; 2 to 5 weight% of the above boric acid; 1 to 5 weight% of the above glycerin; 1 to 5 weight% of the above triethanolamine; and An air pouch comprising an eco-friendly, non-toxic flame-retardant composition containing triethanolamine, characterized by including the remainder being water.
3. In paragraph 2, The above monoammonium phosphate is 16 to 18 weight percent, The above boric acid is 3.5 to 4.5 weight%, The above glycerin is 3 to 4.5 weight%, An air pouch comprising an eco-friendly, non-toxic flame-retardant composition containing triethanolamine, characterized in that the above triethanolamine is in an amount of 2 to 3 weight percent.
4. In paragraph 1, The flame-retardant treatment layer above is, An air pouch comprising an eco-friendly, non-toxic flame-retardant composition characterized by being formed on the surface of the substrate layer or dispersed within the substrate layer.
5. delete

Description

Air Pouch Including Eco-Friendly Non-toxic Flame-Retardant Composition The present invention relates to an air pouch comprising an eco-friendly, non-toxic flame-retardant composition, and more specifically, to an air pouch comprising an eco-friendly, non-toxic flame-retardant composition configured to effectively suppress the spread of combustion in the event of a fire while maintaining lightweight properties and cushioning performance by forming a structure in which air for cushioning is filled inside a substrate layer comprising paper or fiber, wherein the substrate layer is formed in the form of a pouch having a space to wrap around an article or contain it, and by applying an eco-friendly, non-toxic flame-retardant composition comprising monoammonium phosphate, boric acid, glycerin, and triethanolamine to the substrate layer. In relation to logistics transportation, military packaging, and the storage of secondary batteries and fire-vulnerable items, packaging materials in the form of air caps or air cushions that can simultaneously ensure lightweightness and cushioning performance are widely used. In particular, air-layer-based packaging materials, such as air caps or air cushions, are utilized as packaging and protective materials in various industrial fields because they can mitigate external shocks and provide thermal insulation by forming multiple air layers inside. In this regard, prior art includes Korean Published Patent Application No. 10-2020-0002495 (published on January 8, 2020), which discloses a method for manufacturing an eco-friendly air cap that simultaneously secures thermal insulation and flame retardant efficiency by melt-molding an air cap based on polyethylene as the base material and mixing a flame retardant material and a natural synthetic resin. However, the aforementioned conventional technology is a structure in which a flame-retardant material is directly mixed into the main component constituting the air cap itself and molded, and in order to secure flame-retardant performance, it is necessary to include a relatively high amount of polymer flame-retardant material, inorganic filler, and binder. This could lead to a complex manufacturing process, increased product weight, and higher costs, as well as concerns regarding a decline in the lightweight and flexibility required for packaging materials; furthermore, there were concerns about toxicity issues and environmental burden in packaging environments where human contact is possible, as chemical binders were included as needed. Furthermore, the aforementioned conventional technology relies primarily on improvements in the material composition for the thermal insulation and flame-retardant performance of air caps, and thus has limitations in actively structurally utilizing flame-retardant reactions such as expansion, heat absorption, and oxygen blockage in the event of a fire. In other words, there is a problem in that the structural design, which organically combines the air layer inside the air cap with a flame-retardant mechanism to suppress combustion spread, has not been sufficiently considered. Meanwhile, as another prior art, European Patent Publication EP 3 444 318 B1 (published August 5, 2020) discloses an eco-friendly, non-toxic flame-retardant composition comprising monoammonium phosphate, boric acid, and glycerin, along with a composition comprising carboxymethyl cellulose (CMC) and potassium sorbate to control and stabilize the viscosity of the composition. The aforementioned other prior art has the advantage of being environmentally friendly in that it seeks to secure flame retardant performance without using halogen-based flame retardants through a water-based, eco-friendly, non-toxic flame retardant composition. However, compositions containing carboxymethylcellulose and potassium sorbate have limitations, such as increased viscosity of the composition, reduced storage stability, and the risk of precipitation or gelation during long-term storage, which may lead to reduced handling and reliability of application in actual industrial settings. Furthermore, the aforementioned other prior art focuses primarily on the composition and preservation stability of the flame-retardant composition itself, and thus has limitations in that it does not specifically disclose or suggest a technical configuration that simultaneously implements cushioning, thermal insulation, and flame-retardant functions by combining the structural characteristics of the packaging material to which the composition is applied, particularly a buffer air layer structure containing an internal air layer. Furthermore, most conventional flame-retardant packaging materials or flame-retardant air bubbles are limited to simply applying flame-retardant agents to the surface or mixing flame-retardant components during the material molding stage, which limits their ability to structurally delay heat transfer or effectively suppress the spread of combustion i