Preparation process of masking tape with hollow patterns for spraying

The invention discloses a process for preparing a masking tape with hollow patterns. The process comprises the following steps: step 1, material selection: selecting a polyethylene film as a base material and a dissolvable adhesive as an adhesive; the dissoluble adhesive has viscosity at normal temperature, but the viscosity can be removed by water or heat; 2, designing a pattern: designing a hollow pattern of the masking tape by using computer aided design software; converting the design into a file format suitable for a laser cutting machine or an electron beam cutting machine; step 3, preparing a multi-layer structure: uniformly coating one surface of the polyethylene film with a layer of soluble adhesive to ensure uniform coating; the adhesive layer is naturally dried or quickly dried by hot air; the invention provides a practical and attractive solution. According to the scheme, the pattern, the viscosity and the environmental protection property of the masking tape can be comprehensively optimized, and