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]

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

Example Embodiment

[0035] Unless otherwise specified, the percentages used in the present invention are weight percentages. Example 1

[0036] The packaging film for explosive packs is prepared as follows:

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

[0038] The ratio is that 2 kg of linear low-density polyethylene is added for every 3 kg of HDPE, and the masterbatch is 0.01 kg. The masterbatch is mainly to increase the color of the film.

[0039] The PE raw material is fed into the film blowing machine, and the film is blown out and then slit. The blown film is cylindrical. After being stacked, it is divided into two separate films, which are respectively wound into rolls.

[0040] (2) PE film + PET film + PE film composite The explosive package packaging film has three layers in total. The middle layer is made of PET film with a thickness of 12 filaments.

[0041] The PET film passes through a plastic print...

Example Embodiment

[0049] Example 2

[0050] The process of this embodiment is basically the same as that of embodiment 1, the difference lies in the adjustment of the proportion of PE raw materials for preparing the PE film. See Table 1 for details.

Example Embodiment

[0051] Example 3

[0052] The process of this embodiment is basically the same as that of embodiment 1, the difference lies in the adjustment of the proportion of PE raw materials for preparing the PE film. See Table 1 for details.

[0053] Table 1 Recipe 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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