Preparation method of PET composite writing pasting film

Abstract

The invention discloses a preparation method of a PET composite writing pasting film. The preparation method of the PET composite writing pasting film includes the steps of selecting a transparent PET thin film as a structural layer and preparing a writing coating on one surface of the structural layer; selecting a substrate layer and coating mixed color paste on one surface of the substrate layer through a coating machine to prepare a gluing layer; attaching the substrate layer and the structural layer with the coated writing coating into a whole and preparing a gluing layer on the other surface of the substrate layer; selecting a base layer and preparing a release layer on the base layer; attaching the gluing layers on the substrate layers to the release layer through a compound machine to obtain the PET composite writing pasting film. The PET composite writing pasting film is excellent in anti-static character, is easy to maintain when used for writing, and is easy to clean in a wiping mode. By means of the preparation method of the PET composite writing pasting film, the color of the pasting film can be freely changed according to the requirements of clients, convenience is brought to the individual requirements at present, and the production cost can be saved by 50% compared with the cost by using dyed PET.

Description

Technical field: [0001] The invention relates to the technical field of writing materials, in particular to a preparation method of a PET composite writing film. Background technique: [0002] In existing teaching, scientific research and daily life, blackboards or writing whiteboards are usually used as writing carriers, but blackboards can only be used for writing with chalk, and the dust is large when writing and cleaning, which affects health and the writing environment; ordinary writing whiteboards It can only be used for writing with water-based colored pens. After writing, the handwriting is easy to remain and it is difficult to wipe. After long-term writing and wiping, the surface becomes very smooth and it is difficult to write smoothly. There are many types of other writing boards, including electronic, metal , ceramics or other materials such as composite surface hardening layers, but all have the disadvantages of complex structure, troublesome manufacture, high c...

AI Technical Summary

Problems solved by technology

[0002] In existing teaching, scientific research and daily life, blackboards or writing whiteboards are usually used as writing carriers, but blackboards can only be used for writing with chalk, and the dust is large when writing and cleaning, which affects health and the writing environment; ordinary writing whiteboards It can only be used for writing with water-based colored pens. After writing, the handwriting is easy to remain and it is difficult to wipe. After long-term writing and wiping, the surface becomes very smooth and it is difficult to write smoothly. There are many types of other writing boards, including electronic, metal , ceramics or other materials such as composite surface hardening layers, but there are disadvantages such as complex structure, troublesome manufacture, high cost, and inconvenient portability.

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