A kind of transparent writing quick-drying book page film and preparation method thereof

Abstract

The invention relates to the field of film technology, in particular to a transparent writing quick-drying page film and a preparation method thereof. The transparent writing quick-drying page film comprises a transparent BOPP film base layer, a primer layer, a writing quick-drying coating-and a writing quick-drying coating Layer 2, the upper surface of the transparent BOPP film base layer is coated with primer, writing quick-drying coating 1, writing quick-drying coating 2; the lower surface of the transparent BOPP film base layer is coated with primer, writing quick-drying coating 1, Writing quick-drying coating 2; several undercoatings are evenly arranged on the upper and lower surfaces of the transparent BOPP film base, and there is a gap between two adjacent undercoatings in the horizontal direction, and the gap between the undercoatings is filled with adhesive; The layer is divided into several parts and evenly coated on the surface of the transparent BOPP film base layer. Since the area of ​​the undercoating layer becomes smaller and the supporting force is stronger, an adhesive is used to connect the two adjacent undercoat layers to ensure that the bonding strength between the undercoat layers is improved. , Reduce the problem of excessive deformation caused by pulling, because it is not easy to produce pulling deformation, it is smoother when writing.

Description

technical field [0001] The invention relates to the technical field of thin films, in particular to a transparent writing quick-drying page film and a preparation method thereof. Background technique [0002] Polyethylene film can be divided into low-density, medium-density, high-density and cross-linked polyethylene films with different properties: high-density polyethylene film has good heat resistance and mechanical strength, but poor transparency. However, cross-linked polyethylene film has higher tensile strength, heat resistance, barrier and heat shrinkage than other types of polyethylene products. Polyethylene film is usually an ethylene homopolymer, and broadly speaking, it also includes copolymers of ethylene and α-olefins or copolymers of polar vinyl resins. The molecular structure and density of polyethylene in a broad sense are determined by chain breaks, and polymers can be branched in different ways depending on the polymerization conditions. [0003] There a...

AI Technical Summary

Problems solved by technology

Moreover, the surface of the film is scratch-resistant and has a long service life; however, the transparent book page film is a film product. During the simple use of the film, the film will be easily deformed due to pulling, and the film is easily bent and deformed. With a certain supporting force, when writing with brush strokes, because the tip of the nose keeps sliding on the film, it will cause the film to be pulled, resulting in the inability to write normally. There are also products in the prior art that use a single-layer matte PET film as the writing film. The following disadvantages: writing is prone to the problem of broken strokes, writing is not continuous, not smooth

Images