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A kind of PP matting glue-free composite film and preparation method thereof

A composite film and matting technology, applied in chemical instruments and methods, synthetic resin layered products, lamination devices, etc., can solve the problems of low gloss, weak surface reflection light, etc., and achieve strong glue-free composite fastness, preparation method Simple, excellent matting performance

Active Publication Date: 2017-06-16
福融新材料(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Matting film is a kind of packaging film with low gloss and high haze to achieve diffuse reflection and matting effect. The surface of the film is similar to paper surface with high and low gloss. The surface reflection light is weak and soft. More than 70%, it has many advantages such as comfortable hand feeling, quiet and elegant appearance, realistic color reproduction during printing, etc., which cannot be achieved by ordinary packaging films

Method used

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  • A kind of PP matting glue-free composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A PP matting and glue-free composite film, which is composed of surface layer 1, surface layer 2 and core layer; the raw material composition and weight percentage of surface layer 1 are: matting material 100%; the raw material composition and weight percentage of surface layer 2 are: heat sealing material 96.50%, anti-blocking agent 3.50%; the raw material components and weight percentages of the core layer are: PP 98.00%, antistatic agent 1.30%, slip agent 0.70%. The thickness of the prepared composite film was 10 microns.

[0010] The three-layer structure is co-extruded and then biaxially stretched. The process parameters are controlled as follows: main extruder temperature 240°C, surface temperature 240°C, water tank temperature 28°C, chill roll temperature 30°C, die head temperature 240°C, longitudinal stretching temperature 115°C, longitudinal stretching ratio 4.78, transverse stretching temperature 165°C, transverse stretch ratio 9, transverse tension wind spee...

Embodiment 2

[0012] A PP matting and glue-free composite film, which is composed of surface layer 1, surface layer 2 and core layer; the raw material composition and weight percentage of surface layer 1 are: matting material 100%; the raw material composition and weight percentage of surface layer 2 are: heat sealing material 97.50%, anti-blocking agent 2.50%; the raw material components and weight percentages of the core layer are: PP 98.20%, antistatic agent 1.10%, slip agent 0.70%. The thickness of the prepared composite film was 15 microns.

[0013] The three-layer structure is co-extruded and then biaxially stretched. The process parameters are controlled as follows: main extruder temperature 250°C, surface temperature 260°C, water tank temperature 30°C, cold roll temperature 37°C, die head temperature 250°C, longitudinal stretching temperature 129°C, longitudinal stretching ratio 4.78, transverse stretching temperature 179°C, transverse stretch ratio 9.4, transverse tension wind spe...

Embodiment 3

[0015] A PP matting and glue-free composite film, which is composed of surface layer 1, surface layer 2 and core layer; the raw material composition and weight percentage of surface layer 1 are: matting material 100%; the raw material composition and weight percentage of surface layer 2 are: heat sealing material 97.00%, anti-blocking agent 3.00%; the raw material components and weight percentages of the core layer are: PP 98.10%, antistatic agent 1.20%, slip agent 0.70%. The thickness of the prepared composite film was 12 microns.

[0016] The three-layer structure is co-extruded and then biaxially stretched. The process parameters are controlled as follows: main extruder temperature 245°C, surface temperature 250°C, water tank temperature 29°C, chill roll temperature 33°C, die head temperature 245°C, longitudinal stretching temperature 120°C, longitudinal stretching ratio 4.78, transverse stretching temperature 170°C, transverse stretch ratio 9.2, transverse tension wind sp...

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Abstract

The invention discloses a PP extinction-type glue-free composite film and a preparation method thereof, and belongs to the field of high-polymer materials. The composite film comprises a surface layer 1, a surface layer 2 and a core layer, wherein the surface layer 1 is prepared from the following raw materials in percentage by weight: 100% of an extinction material; the surface 2 is prepared from the following raw materials in percentage by weight: 96.50-97.50% of a heat sealing material, and 2.50-3.50% of an antiblocking agent; the core layer is prepared from the following raw materials in percentage by weight: 98.00-98.20% of PP, 1.10-1.30% of an antistatic agent and 0.7% of a slipping agent. The prepared composite film has the thickness of 10-15 microns, has excellent extinction performance, and is high in compositing strength without glue, simple in preparation method and beneficial to expanding and application.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a PP matting and glue-free composite film and a preparation method thereof. Background technique [0002] With the change of people's aesthetic concepts, the requirements for packaging products are constantly updated, and there are various requirements for the surface characteristics of packaging materials. From aesthetics, shelf effects, advertising and other aspects, it reflects the special characteristics of the products and the performance of the manufacturers to stimulate consumers' sensory vision. Effect. Matting film is a kind of packaging film with low gloss and high haze to achieve diffuse reflection and matting effect. The surface of the film is similar to paper surface with high and low gloss. The surface reflection light is weak and soft. More than 70%, it has many advantages such as comfortable hand feeling, quiet and elegant appearance, and vivid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B37/10B32B37/06B32B33/00
CPCB32B27/06B32B33/00B32B37/06B32B37/10B32B2307/408
Inventor 丁伟单利英
Owner 福融新材料(江苏)有限公司