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Satchel charge packing film and preparation method thereof

A technology of packaging film and explosive package, which is applied in packaging, wrapping paper, transportation and packaging, etc. It can solve the problems of poor mechanical properties of composite films and lack of adhesion between three-layer co-extruded PE films of mechanical strength, etc., to improve chemical Effect of Stability and Tensile Strength, Interlayer Bonding Properties and Guaranteed Dimensional Stability

Inactive Publication Date: 2015-10-07
ZHEJIANG CHANGXING ZIXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN202685479U discloses a composite film for packaging of explosives, including a first surface film, a middle film and a second surface film, the middle film is an elastic film, which solves the technical problem of poor mechanical properties of the existing composite film
[0005] The above-mentioned patented technology has improved the barrier performance, anti-leakage and safety performance of the explosive packaging film to a certain extent, but the further improvement of its mechanical strength, the three-layer Adhesion between co-extruded PE films is still lacking

Method used

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  • Satchel charge packing film and preparation method thereof
  • Satchel charge packing film and preparation method thereof
  • Satchel charge packing film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare the explosive package packaging film as follows:

[0037] (1) First prepare the PE film: mix high-density polyethylene (HDPE), linear low-density polyethylene, and masterbatch

[0038] As a result, the ratio is to add 2 kg of linear low density polyethylene to every 3 kg of HDPE, and the color masterbatch is 0.01 kg. The masterbatch is mainly to increase the color of the film.

[0039] Put the PE raw material into the blown film machine, and then cut the blown film into a tube shape. After being folded flat, it is cut into two separate films, which are wound into rolls.

[0040] (2) PE film + PET film + PE film composite There are three layers of packaging film for explosive packs. The middle layer is made of PET film with a thickness of 12 filaments.

[0041]The PET film passes through a plastic printing machine, and the company name, logo, etc. are printed on the surface of the film. After printing, the ink is dried in an oven. The drying uses hot air at a t...

Embodiment 2

[0050] The process of this example is basically the same as that of Example 1, the difference is that the ratio of PE raw materials used to prepare the PE film is adjusted, see Table 1 for details.

Embodiment 3

[0052] The process of this example is basically the same as that of Example 1, the difference is that the ratio of PE raw materials used to prepare the PE film is adjusted, see Table 1 for details.

[0053] Table 1 Formula ratio

[0054]

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Abstract

The invention discloses a satchel charge packing film and a preparation method thereof. The satchel charge packing film comprises a middle layer, an upper outer layer film and a lower outer layer film, wherein the middle layer is provided with a first surface and a second surface; the upper outer layer film is composited on the first surface of the middle layer; the lower outer layer film is composited on the second surface of the middle layer; the middle layer is a PET (Polyethylene Glycol Terephthalate) film; the upper outer layer film or the lower outer layer film is a PE (polyethylene) film and formed by film blowing of a PE raw material; and the PE raw material comprises a high density polyethylene, linear low density polyethylene and color master batch. The satchel charge packing film has high barrier property, leakage resistance and safety; the chemical stability and the mechanical properties such as the tensile strength, the tearing strength, the environmental stress crack resistance, the low temperature resistance, the heat resistance and the penetration resistance of the satchel charge packing film are improved; and the inter-layer binding ability and the dimensional stability are excellent.

Description

technical field [0001] The invention relates to the technical field of explosive packaging film, and particularly discloses an explosive packaging film and a preparation method thereof. Background technique [0002] On the basis of the development of the packaging industry, the packaging of articles has also been developed accordingly. From simple paper packaging, to single-layer plastic film packaging, to the widespread use of composite materials. Composite film can make the contents of the package have the characteristics of moisturizing, fragrance, appearance, freshness, light protection, penetration prevention, and extended shelf life, so it has developed rapidly. [0003] Explosive material is a substance that can burn violently (that is, explode) in a very short period of time. It is a substance that explodes by its own energy under the action of a certain amount of external energy. Due to its particularity, explosives also have special requirements for their packagi...

Claims

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Application Information

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IPC IPC(8): B65D65/40B32B27/08B32B27/32B32B27/36B32B7/12
Inventor 吴三林
Owner ZHEJIANG CHANGXING ZIXIN TECH
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