Preparing method for oral solution plastic bottle

Abstract

The invention relates to a preparing method of a medicine bottle, and particularly discloses a preparing method for an oral solution plastic bottle .The preparing method comprises the steps that plastic particles and a nucleating agent are mixed according to a proportion, and then subjected to blending modification with a double-screw extruder, and a polypropylene composite modified material is obtained; then, the polypropylene composite modified material is subjected to the process of plastifying, injection molding, blow molding and demolding, and the medicine bottle finished product is obtained, wherein the plastic particles are prepared from 80 parts of PP and 15 parts of LDPE .According to the preparing method, PP and other plastic ingredients are blended, and thus the defects that common PP is insufficient in rigidity and poor in impact resistance are successfully overcome; besides, the thickness of the bottle wall is uniform, the material is resistant to heat, and thus production and processing are more convenient .By adding the nucleating agent, the problem that the PP material is low in glossiness and transparency is solved, and the medicine bottle is tidier in appearance and capable of replacing a traditional glass bottle to be used for an oral solution.

Description

technical field [0001] The invention relates to a preparation method of a medicine bottle, and in particular discloses a preparation method of a plastic bottle of oral liquid. Background technique [0002] With the development of economy and technology, the packaging industry has shown great vitality in recent years. Since the main function of medicines is to protect and improve human health, the main function of pharmaceutical packaging is to ensure the safety, effectiveness and stability of medicines under various conditions for a long time. In recent years, due to technological progress, human beings' attention to health and the enhancement of environmental awareness have led to the development of pharmaceutical packaging in a safer, more comprehensive and pollution-free direction. At present, more than 90% of oral liquid medicines and health care products on the market still use glass bottles and PET bottles, but the above-mentioned packaging has its inherent shortcomin...

AI Technical Summary

Problems solved by technology

However, due to the high specific heat capacity of PP, it is not easy to dissipate heat during the production process, resulting in the production efficiency of PP bottles being about 25% lower than that of PET bottles; on the other hand, the molecular structure of PP determines its low melt strength, and the produced The thickness of the container is uneven, and the reject rate is high; on the other hand, PP has low rigidity and poor transparency

The defects in the above aspects limit the development of PP bottles in pharmaceutical packaging containers, and it has been difficult to replace PET bottles.