High-strength food bag and preparation method thereof

Abstract

The invention discloses a high-strength food bag and a preparation method thereof. The preparation method comprises the following steps: (1) mixing raw materials, and carrying out thermal treatment, so as to form a mixture; (2) carrying out extrusion molding on the mixture, so as to prepare a plastic film; and (3) processing the plastic film into the high-strength food bag, wherein the raw materials include polyethylene terephthalate, o-phenylphenol, fillers, a coupling agent, natural silk, asbestos, white carbon black, fructus gleditsiae, fruticose dracaena leaves, diatomite, bran, hemp palm, bamboo clothing, starch, rhizoma alpiniae officinarum, rhizoma cimicifugae, clove and flos magnolia. The high-strength food bag prepared by virtue of the preparation method has excellent mechanical strength and mould resistance, and meanwhile, the raw materials in the preparation method are easily available, so that the industrial volume production of the high-strength food bag can be realized.

Description

technical field

[0001] The invention relates to a food bag, in particular to a high-strength food bag and a preparation method thereof. Background technique

[0002] Food bag, as the name implies, is a bag for food, a small bag, but it brings a lot of convenience to human life. According to the material classification, food bags can be divided into plastic food bags and paper food bags. Although paper food bags are easy to degrade, paper food bags are easily deformed or even degraded when exposed to fluids such as water and oil, thereby contaminating the packed food. The plastic food bag can greatly overcome the defect of deformation after encountering the fluid, and the plastic food bag can be widely used at present.

[0003] Although plastic food bags can be suitable for containing food with fluid remaining in instant noodles, at higher or lower temperatures, the superior mechanical properties of plastic food bags will be greatly challenged, and may become soft or brittl...