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Ultralow temperature CPP aluminum plated film and preparation method thereof

An aluminized film and ultra-low temperature technology, applied in the field of packaging film materials, can solve the problems of poor stretchability, high brittleness, and easy cracks, etc., and achieve the effects of good stretchability, moderate thickness, and improved toughness

Inactive Publication Date: 2018-10-23
HUBEI DEWEI PACKAGING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, CPP aluminized film is widely used in the field of packaging. It has a good insulation effect on water vapor, and at the same time has a good light-proof effect, and is clean and not easy to damage. It is widely used in the fields of food and cosmetics. High brittleness, easy to crack, and poor stretchability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of the above-mentioned ultra-low temperature CPP aluminized film comprises the following steps: 1) the preparation of the base film masterbatch, weighing the corresponding amount of polyethylene, insulating liquid, toughening agent, antioxidant and propylene-based low-temperature elastic After fully mixing, centrifuge at 5000-6000r / min for 10-15min, and polymerize the precipitate obtained after centrifugation in a low-temperature polymerization equipment. After the polymerization is completed, extrude the obtained product through an extruder granulation to obtain base film masterbatch; 2) the preparation of base film layer, take the PET of corresponding weight portion and the base film master batch that step 1) obtains and mix, after mixing evenly, pass extruder at 160-200 Extrude under the condition of ℃ to form a film to obtain the base film layer; 3) when the temperature of the base film layer obtained in step 2) drops to 60-80 °C, lay a polyeth...

Embodiment 1

[0032] This embodiment provides a kind of ultra-low temperature CPP aluminized film, comprising a base film layer and an aluminum plated layer laid on the upper surface of the base film layer and a polyethylene film layer on the lower surface respectively, and the base film layer is composed of base film masterbatch and PET is mixed and extruded, and the base film master batch and PET in the base film layer are 50 parts by weight of the base film master batch, and 30 parts of PET.

[0033] The base film masterbatch in the above embodiments is made of the following raw materials: polyethylene, insulating liquid, toughening agent, antioxidant and propylene-based low-temperature elastomer.

[0034] In the above-mentioned examples, in terms of percentage by weight, the raw materials of the base film master batch include 35% polyethylene, 20% insulating liquid, 0.5% toughening agent, 0.25% antioxidant, and the balance is propylene-based low-temperature elastomer.

[0035] The prepa...

Embodiment 2

[0041] This embodiment provides a kind of ultra-low temperature CPP aluminized film, comprising a base film layer and an aluminum plated layer laid on the upper surface of the base film layer and a polyethylene film layer on the lower surface respectively, and the base film layer is composed of base film masterbatch and PET is mixed and extruded, and the base film master batch and PET in the base film layer are 60 parts by weight of the base film master batch, and 60 parts of PET.

[0042]The raw materials of the base film masterbatch in the above embodiments are polyethylene, insulating liquid, toughening agent, antioxidant and propylene-based low-temperature elastomer.

[0043] According to the percentage by weight in the above examples, the base film masterbatch contains 50% polyethylene, 30% insulating liquid, 1% toughening agent, 1% antioxidant, and the balance is propylene-based low-temperature elastomer.

[0044] The preparation method of the above-mentioned ultra-low t...

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Abstract

The invention discloses an ultralow temperature CPP aluminum plated film, which comprises a basic film layer, an aluminum plated layer, which is arranged on the upper surface of the basic film layer,and a polyethylene film layer, which is arranged on the lower surface of the basic film layer. The basic film layer is prepared by mixing and extruding basic film master batch and PET together; and the basic film layer comprises 50 to 60 parts by weight of basic film master batch and 30 to 60 parts by weight of PET. The aluminum plated layer and the polyethylene film layer are arranged on two sides of the basic film layer, the polyethylene film layer is taken as the inner layer and contains few additives, thus the CPP aluminum plated film is suitable for being used in the food industry, at thesame time, and due to the multilayer structure, the whole CPP aluminum plated film is more stable and has better stretch resistant and freeze resistant performances.

Description

technical field [0001] The invention belongs to the field of packaging film materials, and in particular relates to an ultra-low temperature CPP aluminized film and a preparation method thereof. Background technique [0002] At present, CPP aluminized film is widely used in the field of packaging. It has a good insulation effect on water vapor, and at the same time has a good light-proof effect, and is clean and not easy to damage. It is widely used in the fields of food and cosmetics. When it is brittle, it is prone to cracks and has poor stretchability. Contents of the invention [0003] In order to solve the above technical problems, one of the objectives of the present invention is to provide an ultra-low temperature CPP aluminized film, which has a simple structure, good tensile resistance, and the aluminum film layer is not easy to crack. [0004] In order to achieve the above object, the technical solution of the present invention is: an ultra-low temperature CPP a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/18B32B27/32B32B27/08B32B37/10B32B37/08B32B38/00C08L67/02C08L23/14C08L23/06C08J5/18C23C14/20
CPCB32B27/36B32B27/08B32B27/18B32B27/32B32B37/08B32B37/10B32B38/0008B32B2307/30B32B2307/54B32B2307/558C08J5/18C08J2367/02C08J2423/14C23C14/20
Inventor 蔡岩胜蔡扬龙刘桂华
Owner HUBEI DEWEI PACKAGING TECH
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