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Low-temperature heat-sealing polypropylene film and preparation method thereof

A polypropylene film and low-temperature heat-sealing technology, which is applied in the direction of chemical instruments and methods, layered products, and synthetic resin layered products, can solve problems such as poor transparency, difficult production operations, and low production capacity, and achieve good transparency and low heat. The effect of sealing temperature

Active Publication Date: 2011-08-31
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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, and solidification process. The above-mentioned processes exist when producing low-temperature heat-sealed polypropylene film Problems such as large thickness deviation, difficult production operation, poor transparency, and low production capacity

Method used

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  • Low-temperature heat-sealing polypropylene film and preparation method thereof
  • Low-temperature heat-sealing polypropylene film and preparation method thereof
  • Low-temperature heat-sealing polypropylene film and preparation method thereof

Examples

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Embodiment 1

[0028] Such as 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.

[0029] 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.

[0030] The corona layer is composed of FC801M and ABPP10S, and the weight ratio of FC801M: ABPP10S is 100:1.

[0031] The middle layer is composed of FC801.

[0032] The heat-sealing layer is composed of WFX4TA and SE07PP, and the weight ratio of WFX4TA and SE07PP is 100:0.5.

[0033] In the chilling roll solidification process: the hot-melt film is rapidly cooled and shaped by the casting roll under the action of auxiliary devic...

Embodiment 2

[0038] 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.

[0039] 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.

[0040] The corona layer is composed of FC801M and ABPP10S, and the weight ratio of FC801M: ABPP10S is 100:0.5.

[0041] The middle layer is composed of FC801.

[0042] The heat-sealing layer is composed of WFX4TA and SE07PP, and the weight ratio of WFX4TA and SE07PP is 100:0.5.

[0043] The corona layer is composed of FC801M and anti-sticking agent, and the weight ratio of FC801M:anti-sticking agent is 100:0.5.

[0044] The middle layer is composed of FC801.

[0045] The heat-sealing layer is composed of W...

Embodiment 3

[0052] 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.

[0053] 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.

[0054] The corona layer is composed of FC801M and ABPP10S, and the weight ratio of FC801M: ABPP10S is 100:1.

[0055] The middle layer is composed of FC801.

[0056] The heat-sealing layer is composed of WFX4TA and SE07PP, and the weight ratio of WFX4TA and SE07PP is 100:1.

[0057] The thickness ratio of the corona layer, the intermediate layer and the heat-sealing layer is 1:3:1.

[0058] In the chilling roll solidification process: the hot-melt film is rapidly cooled and shaped by the casting roll under th...

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Abstract

The invention discloses a low-temperature heat-sealing polypropylene film and a preparation method thereof. The film consists of a corona layer, an intermediate layer and a heat-sealing layer, wherein the heat-sealing layer consists of metallocene three-element blocking polypropylene and a slip agent, and the weight ratio of the metallocene three-element blocking polypropylene to the slip agent is 100 to between 0.5 and 1.5. 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, astep of swing, a step of corona and a step of edge cutting. Compared with the prior art, the low-temperature heat-sealing polypropylene film reaches a low heat-sealing temperature by utilization of metallocene PP resin materials in the heat-sealing layer of the film and can not be deformed and curled and has good transparency after being compounded with a BOPP printing film.

Description

Technical field: [0001] The technical solution to be protected by the present invention belongs to the technical field of polypropylene and its preparation method, in particular to low-temperature heat-sealed polypropylene film and its preparation method. Background technique: [0002] At present, most of the existing low-temperature CPP films on the market are produced by copolymerization with PE resin. Although the heat-sealing temperature of the product is very low, the product after compounding with BOPP printing film is easy to curl, resulting in poor appearance, and due to low-temperature CPP The film has poor compatibility with PE resin during production, resulting in a large haze of the product, which seriously affects the transparency of the product. Therefore, there is an urgent need for a low-temperature heat-sealable CPP film that will not deform, curl, and have good transparency. ZL01144306.5 (Manufacturing method of polypropylene film) discloses that the prepa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/32B32B27/18B29C69/00B29C47/06B29C71/00B29C59/10B29C73/26B29C73/28
Inventor 陈付兵郑际生张和平管毓铭谢文汇胡继超胡鸿波
Owner HUANGSHAN NOVEL
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