Bidirectional easily-torn plastic film and production method thereof

Abstract

The invention discloses a bidirectional easily-torn plastic film, which comprises 50-80% by weight of a continuous phase polymer, 10-47% by weight of a dispersed phase polymer, and 3-20% by weight ofa cosolvent. According to the present invention, the plastic film has a smooth surface, and is easy to tear in all directions.

Description

technical field [0001] The invention relates to the technical field of plastic film, in particular to a plastic film with bidirectional tearability and a manufacturing method thereof. Background technique [0002] Existing adhesive tapes are coated with an adhesive material (which can be coated on one surface or two opposite surfaces of the substrate) on the substrate to make a single-sided tape or a double-sided tape to achieve the effect of adhesion. Among them, the existing The tape uses tissue paper as a substrate. However, tissue paper is a porous material. When the adhesive material is coated on the tissue paper, the adhesive material will penetrate into the tissue paper through the pores on the surface of the tissue paper, resulting in an increase in cost. Therefore, it is necessary to develop a new adhesive tape. Substrates to reduce cost expenditures. [0003] In addition, most of the existing medical or food packaging bags use low-density polyethylene as the main...

AI Technical Summary

Problems solved by technology

However, low-density polyethylene has a network structure, which has a certain toughness and is difficult to tear directly. Therefore, when making low-density polyethylene into a pharmaceutical packaging bag, it is still necessary to use a cutting tool to take out the medicinal materials inside, which is still inconvenient to use.

Images