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Touch type priming-coat-free BOPET matte pre-coating film and preparation method thereof

A primerless, tactile technology, applied in heat-activated films/sheets, film/sheet-like adhesives, adhesive additives, etc., can solve the problem of temperature limitations in processing procedures, severe heat shrinkage, and easy stretching and deformation, etc. problems, to achieve the effect of reducing cracking or even separation, solving the problem of high temperature resistance, and stable heat shrinkage performance

Inactive Publication Date: 2020-12-22
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used tactile film generally uses BOPP matte film as the base film. The substrate has poor thermal stability, severe thermal shrinkage, and easy stretching and deformation during processing, which has great restrictions on the use and subsequent processing temperature.

Method used

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  • Touch type priming-coat-free BOPET matte pre-coating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1. Unwind the 15 μm thick biaxially oriented matte polyester film substrate without primer:

[0028] S2. Mix ethylene-vinyl acetate polymer and petroleum resin according to the weight ratio of 95:5, melt and extrude at 220°C, and compound it to the surface of the substrate without primer coating by casting method to form a hot melt adhesive layer;

[0029] S3. After cooling the film obtained in S2 on a cooling roll at 22°C, trimming and measuring the total thickness is about 30 μm, of which the thickness of the hot melt adhesive layer is about 15 μm, and then conduct high frequency on the surface of the hot melt adhesive layer High-voltage corona treatment, in which the power of high-frequency high-voltage corona treatment is 20W / m 2 , and finally wind up;

[0030] S4. Re-unwind the film wound in S3 using the reverse unwinding method, and evenly apply the water-based tactile ink to the matte surface of the substrate by gluing to form a tactile layer. After drying in a...

Embodiment 2

[0033] S1. Unwind the 15 μm thick biaxially oriented matte polyester film substrate without primer:

[0034] S2. Mix ethylene-vinyl acetate polymer and petroleum resin according to the weight ratio of 95:5, melt and extrude at 220°C, and compound it to the surface of the substrate without primer coating by casting method to form a hot melt adhesive layer;

[0035] S3. After cooling the film obtained in S2 on a cooling roll at 22°C, trimming and measuring the total thickness is about 30 μm, of which the thickness of the hot melt adhesive layer is about 15 μm, and then conduct high frequency on the surface of the hot melt adhesive layer High-voltage corona treatment, in which the power of high-frequency high-voltage corona treatment is 25W / m 2 , and finally wind up;

[0036] S4. Re-unwind the film wound in S3 using the reverse unwinding method, and evenly apply the water-based tactile ink to the matte surface of the substrate by gluing to form a tactile layer. After drying in a...

Embodiment 3

[0039] S1. Unwind the 15 μm thick biaxially oriented matte polyester film substrate without primer:

[0040] S2. Mix ethylene-vinyl acetate polymer and petroleum resin according to the weight ratio of 90:10, melt and extrude at 220°C, and compound it to the surface of the substrate without primer coating by casting method to form a hot melt adhesive layer;

[0041] S3. After cooling the film obtained in S2 on a cooling roll at 22°C, trimming and measuring the total thickness is about 30 μm, of which the thickness of the hot melt adhesive layer is about 15 μm, and then conduct high frequency on the surface of the hot melt adhesive layer High-voltage corona treatment, in which the power of high-frequency high-voltage corona treatment is 30W / m 2 , and finally wind up;

[0042] S4. Re-unwind the film wound in S3 using the reverse unwinding method, and evenly apply the water-based tactile ink to the matte surface of the substrate by gluing to form a tactile layer. After drying in ...

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Abstract

The invention discloses a touch type priming-coat-free BOPET matte pre-coating film and a preparation method thereof, and relates to the technical field of pre-coating films. The touch-type priming-coat-free BOPET matte pre-coating film comprises an upper surface layer, a base material layer and a lower surface layer which are arranged in sequence; the upper surface layer is a touch layer, and theupper surface layer is made of water-based touch ink; the base material layer is a priming-coat-free BOPET layer, and is composed of the raw material of a priming-coat-free biaxially oriented matte polyester thin film; the lower surface layer is a hot melt adhesive layer and is composed of the raw materials: an ethylene-vinyl acetate polymer and a tackifier. The surface of the BOPET matte pre-coating film prepared by the method has velvet smooth touch, stable longitudinal and transverse thermal shrinkage performance and good cohesiveness with a base material.

Description

technical field [0001] The invention relates to the technical field of precoating films, in particular to a touch-sensitive primerless BOPET matte precoating film and a preparation method thereof. Background technique [0002] Pre-coated film refers to the process of gluing and rewinding plastic film in advance, and then compounding it with paper prints. Generally, the pre-coating film processing factory first applies the glue solution on the film according to the usage specifications and width, and then rewinds it for the user to choose, and then compound it with the printed matter. With the diversified development of pre-coated film substrates and hot-melt adhesives, the application field of pre-coated films is no longer limited to paper printed matter, but has also been widely used in commodity packaging, building materials industry and other fields. [0003] With the continuous improvement of human performance and requirements for materials, the surface of ordinary plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/35C09J123/08C09J11/08
CPCC09J7/255C09J7/35C09J123/0853C09J11/08C09J2467/006C09J2423/04C08L57/02
Inventor 杨小月刘昌民
Owner ANHUI GUOFENG PLASTIC
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