Antifog polypropylene film and preparation method thereof

A technology of polypropylene film and polypropylene resin, which is applied in the field of polypropylene, can solve the problems of poor anti-fog effect, achieve good anti-fog effects and improve wetting tension

Active Publication Date: 2009-02-18
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ZL200620041708.2 (anti-fogging cast polypropylene film) discloses an anti-fog polypropylene film composed of a three-layer composite film, and ZL01144306.5 (manufacturing method of polypropylene film) discloses that the preparation process of polypropylene film includes: mixing Extrusion process, die head rounding process, cooling process, curing process, the above processes have poor anti-fog effect in the production of anti-fog polypropylene film

Method used

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  • Antifog polypropylene film and preparation method thereof
  • Antifog polypropylene film and preparation method thereof
  • Antifog polypropylene film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown: the preparation method of the present invention includes the following steps in sequence: extrusion process, chilled roll solidification process, cooling process, thickness measurement process, corona process, deflection process, edge trimming process.

[0027] In the extrusion process: three-stage heating is adopted, the temperature of the first-stage extruder is: 210°C, the temperature of the second-stage extruder: 225°C, the temperature of the third-stage extruder: 230°C; the temperature of the die head: 225°C.

[0028] The corona layer is composed of FC801M.

[0029] The middle layer is composed of FC801 and anti-fog masterbatch, and the weight ratio of FC801:anti-fog masterbatch is 6:1.

[0030] The heat seal layer includes FL7632, ABPP10S, SE07PP;

[0031] The weight ratio of FL7632, ABPP10S, SE07PP is 100:0.5:0.5.

[0032] In the chilling roll solidification process: the hot-melt film is rapidly cooled and shaped by the casting roll und...

Embodiment 2

[0037] The preparation method of the present invention includes the following steps in sequence: extrusion, chilled roll solidification, cooling, thickness measurement, corona, deflection, and edge trimming.

[0038] In the extrusion process: three-stage heating is adopted, the temperature of the first-stage extruder is: 210°C, the temperature of the second-stage extruder: 225°C, the temperature of the third-stage extruder: 230°C; the temperature of the die head: 225°C.

[0039] The corona layer is composed of FC801M.

[0040] The middle layer is composed of FC801 and anti-fog masterbatch, the weight ratio of FC801:anti-fog masterbatch is 12:1.

[0041] The heat seal layer includes FL7632, ABPP10S, SE07PP, and the weight ratio of FL7632, ABPP10S, SE07PP is 100:1:1.

[0042] The thickness ratio of corona layer, intermediate layer and heat seal layer is 1:3:1.

[0043] In the chilling roll solidification process: the hot-melt film is rapidly cooled and shaped by the casting ro...

Embodiment 3

[0048] The preparation method of the present invention includes the following steps in sequence: extrusion, chilled roll solidification, cooling, thickness measurement, corona, deflection, and edge trimming.

[0049] In the extrusion process: three-stage heating is adopted, the temperature of the first-stage extruder is: 210°C, the temperature of the second-stage extruder: 225°C, the temperature of the third-stage extruder: 230°C; the temperature of the die head: 225°C.

[0050] The corona layer is composed of FC801M.

[0051] The middle layer is composed of FC801 and anti-fog masterbatch, the weight ratio of FC801:anti-fog masterbatch is 6:1.

[0052] The heat seal layer includes FL7632, ABPP10S, SE07PP,

[0053]The weight ratio of FL7632, ABPP10S, SE07PP is 100:1:0.5.

[0054] The thickness ratio of corona layer, intermediate layer and heat seal layer is 1:3:1.

[0055] In the chilling roll solidification process: the hot-melt film is rapidly cooled and shaped by the cast...

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Abstract

The invention discloses an antifog polypropylene film and a preparation method thereof. The film consists of a corona layer, an intermediate layer and a heat-sealing layer, and is characterized in that the intermediate layer comprises polypropylene resin and antifog master batches, and the weight ratio of the polypropylene resin to the antifog master batches is between 6 and 15 to 1. The preparation method comprises the following steps in turn: a step of extrusion, a step of cooling setting of a flow casting station, a step of thickness measurement, a step of swing, a step of corona and a step of edge cutting. Compared with the prior art, the surface wetting tension of the antifog polypropylene film can be greatly improved, so that a layer of water film can be formed on the inner surface of the film by vapor emitted by garden stuff to achieve good antifog effect. The polypropylene film is suitable for cold storage packaging below an ambient temperature of between 4 and 10 DEG C.

Description

Technical field: [0001] The technical solution to be protected by the present invention belongs to the technical field of polypropylene, in particular to the technical field of anti-fog casting polypropylene film. Background technique: [0002] At present, the polypropylene film used for food and vegetable packaging in the market is susceptible to drastic changes in temperature and humidity and the evaporation (emission) of moisture contained in the packaged items, and it is easy to form fog (water droplets) on the surface of the film. , It will affect the appearance of the packaging and then affect the value of the product, and the falling water droplets will cause discoloration and even rot of fresh fruits and vegetables. Therefore, need badly a kind of polypropylene film with anti-fog performance. ZL200620041708.2 (anti-fogging cast polypropylene film) discloses an anti-fog polypropylene film composed of a three-layer composite film, and ZL01144306.5 (manufacturing metho...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B27/18B29C69/00B29C47/06B29C71/00B29C59/10B29C73/26B29C73/28
Inventor 陈付兵郑际生张和平汪学文陈旭周黎丽谢文汇
Owner HUANGSHAN NOVEL
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