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BOPP (biaxially-oriented polypropylene) coating matt mould

A matte film and coating technology, which is applied in the field of packaging materials, can solve the problems of poor wipe resistance, poor printing performance, and low surface tension (generally not exceeding 32 dyne), and achieve the effect of enhanced printability

Active Publication Date: 2012-07-25
HUBEI FIRSTA MATERIALS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the label industry (BOPP coating film is the upper film for making label materials), since the surface of BOPP coating film is non-polar, and the surface tension itself is not high (generally no more than 32 dyne) and falls very fast, making UV The adhesion of ink on the surface of BOPP is extremely difficult
The existing BOPP coating film has the following disadvantages: the corona value can only reach 38 dynes in one month, the printing performance is poor, and the abrasion resistance is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 As shown, the BOPP coated matte film includes functional layer 1, core layer 2 and sub-functional layer 3, the core layer is located between the functional layer and the sub-functional layer, and the functional layer, core layer and sub-functional layer are co-extruded Afterwards, it is integrated by two-way stretching; the mass percentages of functional layer, core layer, and sub-functional layer are: functional layer 1%, core layer 98%, and sub-functional layer 1%;

[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 acetate 55%, C9 hydrogenated petroleum resin 10%, polypropylene 18%, polyvinyl alcohol 13%, sodium hydroxide 2%, antioxidant [1010 antioxidant (or antioxidant 1010)] 1%, dispersant 1%;

[0020] ...

Embodiment 2

[0029] Such as figure 1 As shown, the BOPP coated matte film includes functional layer 1, core layer 2 and sub-functional layer 3, the core layer is located between the functional layer and the sub-functional layer, and the functional layer, core layer and sub-functional layer are co-extruded Afterwards, it is integrated by two-way stretching; the mass percentages of functional layer, core layer, and sub-functional layer are: functional layer 8%, core layer 91%, and sub-functional layer 1%;

[0030] 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 acetate 55%, C9 hydrogenated petroleum resin 10%, polypropylene 18%, polyvinyl alcohol 13%, sodium hydroxide 2%, antioxidant [1076 antioxidant] 1%, dispersant 1% ;

[0031] The material of the c...

Embodiment 3

[0040] Such as figure 1 As shown, the BOPP coated matte film includes functional layer 1, core layer 2 and sub-functional layer 3, the core layer is located between the functional layer and the sub-functional layer, and the functional layer, core layer and sub-functional layer are co-extruded Afterwards, it is integrated by two-way stretching; the mass percentages of functional layer, core layer and sub-functional layer are: functional layer 2%, core layer 93%, and sub-functional layer 5%;

[0041] 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 acetate 55%, C9 hydrogenated petroleum resin 10%, polypropylene 18%, polyvinyl alcohol 13%, sodium hydroxide 2%, antioxidant (phosphite) 1%, dispersant 1% ;

[0042] The material of the core laye...

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Abstract

The invention belongs to the technical field of packing materials, and particularly relates to a BOPP (biaxially-oriented polypropylene) coating matt mould, which is characterized in that the BOPP coating matt mould comprises a functional layer, a core layer and a secondary functional layer, the core layer is positioned between the functional layer and the secondary functional layer, the functional layer, the core layer and the secondary functional layer are coextruded and then bidirectionally stretched into a whole, the weight percents of the functional layer, the core layer and the secondary functional layer are 1-8%, 91-98% and 1-5% respectively, raw materials of the functional layer include, in weight percent, 55% of acetic ether, 10% of C9 hydrogenated petroleum resin, 18% of polypropylene, 13% of polyvinyl alcohol, 2% of sodium hydroxide, 1% of antioxidant and 1% of dispersing agent, raw materials of the core layer include, in weight percent, 92% of polypropylene, 5% of stiffening agent and 3% of antistatic agent, and raw materials of the secondary functional layer include, in weight percent, 48% of high-density polyethylene, 48% of polypropylene, 3% of SiO2 and 1% of antioxidant. The BOPP coating matt mould has a fine printing performance and has an extinction function.

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. However, in the label industry (BOPP coating film is the upper film for making label materials), since the surface of BOPP coating film is non-polar, and the surface tension itself is not high (generally no more than 32 dyne) and falls very fast, making UV The adhesion of ink on the surface of BOPP is extremely difficult. The existing BOPP coating film has the following disadvantages: the corona value can only reach 38 dynes in one month, the printing performance is poor, and the wiping resistance is poor. Contents of the invention [0003] The purpose of the present invention is to provide a BOPP coated matte film with good printing performance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/18B41M5/00
Inventor 褚峰林江四华
Owner HUBEI FIRSTA MATERIALS SCI & TECH GRP
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