Multifunctional multi-layer coextrusion plastic bottle

Abstract

The invention belongs to the field of drug packaging, and discloses a multifunctional multi-layer coextrusion plastic bottle. The multifunctional multi-layer coextrusion plastic bottle comprises a bottle body and a bottle cap. The bottom of the bottle body is a round bottle bottom. A cylindrical bottle body is connected to the bottle bottom. A bottle opening is formed in the upper end of the cylindrical bottle body. Matched threads are arranged on the outer side of the bottle opening and the inner side of the bottle cap correspondingly. Materials of the bottle body comprise at least three layers of materials, namely, an outer layer, a middle layer and an inner layer, and the cylindrical bottle body is manufactured through a multi-layer coextrusion technology. The multifunctional multi-layer coextrusion plastic bottle has a good anti-bacterial function and meanwhile has a high oxygen resistance function, and the situation that drugs are in contact with oxygen to be oxidized can be avoided; and sealing performance is good, high wet resistance is achieved, and water is prevented from entering the drug bottle. The low n-hexane dissolution index is met.

Description

technical field [0001] The invention relates to a multifunctional multilayer co-extruded plastic bottle, which belongs to the field of food and medicine packaging. Background technique [0002] At present, the containers used to package solid drugs in medicine are mainly single-layer plastic bottles. Single-layer plastic bottles have the characteristics of light weight, low price, and simple mass production process, but they are insufficient in barrier properties, sealing properties, and antibacterial properties. Low barrier properties lead to poor oxygen barrier effect, making oxygen the main factor leading to drug deterioration, causing premature drug failure and deterioration, with serious consequences. Poor antibacterial properties lead to bacterial growth and affect health. The raw material of single-layer plastic bottles depends on oil, and modern society is increasingly dependent on oil, and the price of crude oil has always been rising at a rate beyond people's expe...

AI Technical Summary

Problems solved by technology

Low barrier properties lead to poor oxygen barrier effect, making oxygen the main factor leading to drug deterioration, causing premature drug failure and deterioration, with serious consequences

Poor antibacterial properties lead to bacterial growth and affect health

The raw material of single-layer plastic bottles depends on oil, and modern society is increasingly dependent on oil, and the price of crude oil has always been rising at a rate beyond people's expectations, resulting in high production costs and large resource consumption.

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