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Packaging film with low heat sealing temperature
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A packaging film, low heat technology, used in household components, applications, household appliances, etc., can solve the problems of high heat sealing strength, low heat sealing temperature, high heat sealing temperature, and achieve the effect of high heat sealing strength
Inactive Publication Date: 2017-10-24
SINOPEC YANGZI PETROCHEM +1
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Abstract
Description
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Problems solved by technology
[0004] The purpose of the present invention is to solve the deficiencies of the prior art such as high heat-sealing temperature and low heat-sealing strength, and provide a packaging film with a low heat-sealing temperature, which has a lower heat-sealing temperature and higher heat-sealing strength, and can be used Used as cold drink packaging film, instant noodle packaging film, biscuit packaging film, potato chip packaging film, tea packaging film, beverage packaging film, pharmaceutical product packaging film, cosmetic packaging film, etc.
Method used
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Examples
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Effect test
Embodiment 1
[0014] Using BOPP film as the base material, extrude ethylene-propylene-butylene terpolymer polypropylene resin FS5612 (manufactured by TPC, Singapore) through a twin-screw extruder, and then pour it on the BOPP film through a T-shaped die. at 4Kg / cm 2 The pressure is hot-pressed to obtain the packaging film. Among them, the temperature of twin-screw extruder 1 to 8 is: 180°C, 230°C, 240°C, 250°C, 260°C, 260°C, 260°C, 250°C, and the temperature of T-shaped die is 250°C.
[0015] The packaging film obtained in this example was cut to 15 mm for heat-sealing performance test. The heat-sealing temperature was 132.2°C, the heat-sealing strength was 6.3N, and the tearing strength was 0.3N.
Embodiment 2
[0017] Using BOPP film as the base material, extrude ethylene-propylene-butylene terpolymer polypropylene resin FS5611L (manufactured by TPC, Singapore) through a twin-screw extruder, and then pour it on the BOPP film through a T-shaped die. at 4Kg / cm 2 The pressure is hot-pressed to obtain the packaging film. Among them, the temperature of twin-screw extruder 1 to 8 is: 180°C, 230°C, 240°C, 250°C, 260°C, 260°C, 260°C, 250°C, and the temperature of T-shaped die is 250°C.
[0018] The packaging film obtained in this example was cut to 15 mm for heat-sealing performance test. The heat-sealing temperature was 131.9°C, the heat-sealing strength was 5.9N, and the tearing strength was 0.3N.
Embodiment 3
[0020] Using BOPP film as the base material, extrude ethylene-propylene-butylene terpolymer polypropylene resin 740T (Hunan Chemical Company) through a twin-screw extruder, and then pour it on the BOPP film through a T-shaped die head. 4Kg / cm 2 The pressure is hot-pressed to obtain the packaging film. Among them, the temperature of twin-screw extruder 1 to 8 is: 190°C, 240°C, 250°C, 250°C, 260°C, 270°C, 260°C, 250°C, and the temperature of T-shaped die head is 250°C.
[0021] The packaging film obtained in this example was cut to 15 mm for heat-sealing performance test. The heat-sealing temperature was 129.2°C, the heat-sealing strength was 6.2N, and the tearing strength was 0.4N.
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Abstract
The invention relates to a packaging film with low heat sealing temperature. The packaging film comprises a heat sealing layer and a core layer, wherein the core layer is a BOPP film; the heat sealing layer is polyolefin resin; the melting point of the polyolefin resin is 100-130 DEG C. The packaging film has lower heat sealing temperature and higher heat sealing strength; the heat sealing temperature can be controlled at 100-130 DEG C; the heat sealing strength can reach 9N; the stripping force can reach 0.8N; the packaging film is suitably used as a cold beverage packaging film, an instant noodle packaging film, a biscuit packaging film, a potato chip packaging film, a tea packaging film, a beverage packaging film, a medicine product packaging film and a cosmetic packaging film and the like.
Description
technical field [0001] The invention relates to a packaging film, in particular to a low heat-sealing temperature packaging film whose base material is a BOPP film. Background technique [0002] Ordinary BOPP film does not have heat-sealing performance, and the heat-sealable packaging film needs to be made by compounding BOPP film and heat-sealing layer, generally A / B composite film, where A represents the heat-sealing layer, B represents the core layer, and The layer thickness is controlled at about 1 μm. During heat sealing, the packaging film is heated above the heat-sealing temperature, and the heat-sealing layer is heated to a viscous fluid state, and with the help of a certain heat-sealing pressure, the molecular chains at the interface of the heat-sealing layer in a viscous fluid state penetrate and diffuse, so that the two The interface of the layer film is fused into a whole, which has certain strength and heat sealability. The raw material for the heat-sealing la...
Claims
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Application Information
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