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Fresh keeping container and food fresh keeping method

A fresh-keeping container and container cover technology, which is applied to containers, anti-rot containers, transportation and packaging, etc., and can solve the problems of poor fresh-keeping effect

Active Publication Date: 2013-01-30
BEIJING RECHSAND SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a fresh-keeping container with excellent fresh-keeping performance and a food fresh-keeping method in order to overcome the defect that the existing fresh-keeping containers have poor fresh-keeping effects when they are kept fresh at room temperature

Method used

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  • Fresh keeping container and food fresh keeping method
  • Fresh keeping container and food fresh keeping method

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0044] This example is used to illustrate the preparation of the film-coated aggregate particles provided by the present invention.

[0045] Heat 100 grams of quartz sand with an average particle diameter of 0.25mm to 50°C, then add 5 grams of liquid polyvinyl alcohol tert-butyraldehyde modified epoxy resin, stir well, then add 1 gram of polyamide curing agent, and stir evenly. The epoxy resin is coated on the surface of the quartz sand; then, cooled to room temperature, crushed and sieved to obtain the coated aggregate particles, calculated by weighing method, based on the total weight of the coated aggregate particles, the hydrophobic The content of the substance coating is 6% by weight.

preparation Embodiment 2

[0047] This example is used to illustrate the preparation of the film-coated aggregate particles provided by the present invention.

[0048] Heat 100 grams of ceramsite with an average particle diameter of 0.23mm to 50°C, then add 4 grams of silicone resin, stir thoroughly, then add 0.5 grams of dibutyltin dilaurate curing agent, and stir evenly to make the silicone resin Cover the surface of the quartz sand particles; then, cool to room temperature, crush and sieve to obtain the film-coated aggregate particles, and calculate by weighing method, based on the total weight of the film-coated aggregate particles, the hydrophobic substance coating The layer content was 4.3% by weight.

preparation Embodiment 3

[0050] This example is used to illustrate the preparation of the film-coated aggregate particles provided by the present invention.

[0051] Mix 50 grams of quartz sand with an average particle diameter of 0.25 mm and 50 grams of glass microspheres with an average particle diameter of 0.31 mm and heat to 50 ° C. After that, add 2 grams of liquid polyurethane resin, stir well, and then add TDI trimer 0.2 grams of solid curing agent, stirred evenly, so that polyurethane resin is coated on the surface of quartz sand and glass beads; then, cooled to room temperature, crushed and sieved to obtain coated aggregate particles, calculated by weighing method Based on the total weight of the film-coated aggregate particles, the content of the hydrophobic substance coating layer is 2.2% by weight.

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Abstract

The invention provides a fresh keeping container and a food fresh keeping method. The fresh keeping container comprises a container body and a container cover, the container body comprises a side wall and a bottom, the side wall comprises an inner layer and an outer layer, the bottom comprises an inner layer and an outer layer, the inner layer of the side wall and the inner layer of the bottom are integrated, the outer layer of the side wall and the outer layer of the bottom are integrated, cavities are reserved between the inner layer of the side wall and the outer layer of the side wall as well as between the inner layer of the bottom and the outer layer of the bottom, and the container cover is covered on an opening of the container body and is in close fit with the outer layer of the side wall of the container body. The inner layer and the outer layer of the side wall, the inner layer and the outer layer of the bottom and the container cover are made of mixtures containing particles of aggregates and hydrophobic binders by curing. The fresh keeping container has excellent food fresh keeping effect.

Description

technical field [0001] The invention relates to a fresh-keeping container and a food fresh-keeping method using the fresh-keeping container. Background technique [0002] Since the reform and opening up, with the improvement of people's living standards, residents have put forward higher requirements for the freshness of food, especially vegetables, fruits and meat. At present, fresh-keeping containers are widely used for food preservation, which are not only convenient and practical, but also can store food in different categories. Most of the existing fresh-keeping containers are dense and uniform films made of polyethylene homopolymer, which have good transparency, mechanical properties, toughness and elasticity, and are impermeable to gas and water vapor, which can well prevent the emission of water vapor , can play a certain fresh-keeping effect. But existing fresh-keeping container is to keep fresh at normal temperature usually, if run into summer, the climate is sco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D81/24
Inventor 秦升益
Owner BEIJING RECHSAND SCI & TECH GRP
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