Cast polypropylene film for pharmaceutical powder packaging

Abstract

The invention relates to a cast polypropylene film for medicine powder packaging, which belongs to the technical field of cast polypropylene film, and aims to solve the problem of the adsorption and adhesion of medicine powder on the film, and the technical solution adopted is a cast polypropylene film for medicine powder packaging The film comprises a corona layer, a core layer and a heat-sealing layer, the corona layer adopts binary random copolymerized polypropylene, the core layer adopts polypropylene and ethylene-vinyl alcohol copolymer blending raw materials, and the heat-sealing layer The layer adopts modified polypropylene, and the heat-sealing layer is treated with surface grafting and chitosan modification. The invention has the effects of excellent antistatic performance and good barrier performance, and when used for packaging medicinal powder, the phenomenon of medicinal powder sticking to walls is obviously reduced.

Description

technical field [0001] The invention relates to the technical field of casting polypropylene film, in particular to a polypropylene film for packaging medicine powder. Background technique [0002] Traditional Chinese medicine powder refers to a powder medicine made by pulverizing and mixing one or several medicines. The powder has the characteristics of large specific surface area, easy dispersion and quick effect, and the preparation method is simple and convenient to use. With the development of science and technology, the equipment used for powdering traditional Chinese medicine has become more and more advanced and perfect, and powders with specifications such as ultra-fine powder and ultra-fine powder have gradually appeared. It has become a popular specification of decoction pieces in Chinese medicine clinics, especially the more expensive medicinal materials in traditional Chinese medicine, which are usually crushed and taken to achieve full utilization of the medic...

AI Technical Summary

Problems solved by technology

When the existing medicine powder packaging bag is in use, the medicine powder will adhere to the inner wall of the packaging bag during the process of pouring the medicine powder out of the packaging bag, and some medicine powder in the packaging bag is difficult to pour out

This not only wastes the medicinal materials, but also reduces the dosage of patients, which affects the therapeutic effect, and the medicinal materials that are powdered are often relatively expensive medicinal materials, which also increases the treatment cost of patients.