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bopp bright white coating film

A technology of white coating and cloth film, applied in the field of packaging materials, can solve the problems of poor brightening effect and achieve good brightening effect

Active Publication Date: 2016-04-13
HUBEI FIRSTA MATERIALS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing BOPP coating film has the following disadvantages: the bright white effect is poor

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] like figure 1 As shown, BOPP bright white coating film is composed of functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4, functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4 Arranged in sequence, functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4 are integrated by biaxial stretching after co-extrusion; functional layer 1, secondary functional layer 2, core layer 3 and third functional layer The mass percentage of layer 4 is: 9% of the functional layer, 3% of the secondary functional layer, 82% of the core layer, and 6% of the third functional layer;

[0019] The material of the functional layer is composed of ethyl acetate, C9 hydrogenated petroleum resin (or called C9 hydrogenated petroleum resin, hydrogenated C9 petroleum resin), polypropylene, polyvinyl alcohol, sodium hydroxide, antioxidant and dispersant. The percentage by mass is: ethyl acetat...

Embodiment 2

[0028] like figure 1 As shown, BOPP bright white coating film is composed of functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4, functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4 Arranged in sequence, functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4 are integrated by biaxial stretching after co-extrusion; functional layer 1, secondary functional layer 2, core layer 3 and third functional layer The mass percentage of layer 4 is: 10% of the functional layer, 3% of the secondary functional layer, 80% of the core layer, and 7% of the third functional layer;

[0029] The material of the functional layer is composed of ethyl acetate, C9 hydrogenated petroleum resin (or called C9 hydrogenated petroleum resin, hydrogenated C9 petroleum resin), polypropylene, polyvinyl alcohol, sodium hydroxide, antioxidant and dispersant. The percentage by mass is: ethyl aceta...

Embodiment 3

[0038] like figure 1 As shown, BOPP bright white coating film is composed of functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4, functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4 Arranged in sequence, functional layer 1, secondary functional layer 2, core layer 3 and third functional layer 4 are integrated by biaxial stretching after co-extrusion; functional layer 1, secondary functional layer 2, core layer 3 and third functional layer The mass percentage of layer 4 is: 9% of the functional layer, 5% of the secondary functional layer, 80% of the core layer, and 6% of the third functional layer;

[0039] The material of the functional layer is composed of ethyl acetate, C9 hydrogenated petroleum resin (or called C9 hydrogenated petroleum resin, hydrogenated C9 petroleum resin), polypropylene, polyvinyl alcohol, sodium hydroxide, antioxidant and dispersant. The percentage by mass is: ethyl acetat...

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Abstract

The invention belongs to the technical field of packaging materials and in particular relates to a BOPP coating film. The brightening BOPP coating film is characterized by comprising a functional layer, a second functional layer, a core and a third functional layer, which are arranged in sequence, wherein the functional layer, the second functional layer, the core and the third functional layer form a whole through biaxial orientation after coextrusion; the mass percentages of the functional layer, the second functional layer, the core and the third functional layer are respectively 9-10%, 3-5%, 80-82% and 6-7%; the second functional layer comprises the following materials by mass percent: 75% of polypropylene, 20% of TiO2 and 5% of antistatic slipping agent. The film has good brightening effects.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a BOPP coating film. Background technique [0002] Some characteristics of BOPP coating film itself make it widely used in flexible packaging industry, such as cigarette labels, laser, food packaging and so on. The existing BOPP coating film has the following disadvantages: poor brightening effect. Contents of the invention [0003] The purpose of the present invention is to provide a BOPP bright white coating film, which has good bright white effect. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: BOPP bright white coating film, characterized in that: it is made up of functional layer, secondary functional layer, core layer and the 3rd functional layer, functional layer, secondary functional layer, The core layer and the third functional layer are arranged in sequence, and the functional layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B5/14B32B27/28B32B37/04
Inventor 杨永胜章栋孙麟朱红卫刘杰
Owner HUBEI FIRSTA MATERIALS SCI & TECH GRP
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