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Degradable packaging material based on orange peel dregs and preparation method and application thereof

A technology of citrus peels and packaging materials, which is applied in the direction of sustainable packaging, packaging, wrapping paper, etc., can solve the problems of large energy consumption, inability to use peels, and high energy prices, and achieve a wide range of raw material sources and complete bioreliability. Degradability and good product quality

Inactive Publication Date: 2011-07-27
HUNAN AGRI PRODS PROCESSING INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to realize the pollution-free utilization of the processed citrus peel is a big problem for citrus processing, whether it is extracting pectin or essential oil from the peel. Whether it is to prepare dietary fiber, the skin dregs cannot be fully utilized. The more common pollution-free treatment method in the world is to make the skin dregs into dry feed, which can not only be used reasonably, but also solve the pollution problem; The energy consumption is large, and the price of energy in our country is high, so it is difficult to implement it in the production practice of our country.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A degradable packaging material of the present invention applied to egg tray products, the degradable packaging material is mainly obtained by mixing and heating adhesive polylactic acid and citrus peel particles, the mass ratio of citrus peel particles and polylactic acid is 1: 0.15.

[0024] The above-mentioned degradable packaging material product of the present embodiment is prepared through the following steps:

[0025] (1) Pulverization: put the wet citrus peel after the active ingredients have been extracted directly into the grinder for crushing, and the citrus peel particles obtained after crushing can pass through a 20-mesh sieve;

[0026] (2) Mixing material: take the adhesive polylactic acid, mix the citrus peel particles obtained above with the polylactic acid at a mass ratio of 1:0.15, and then put it into a mixer and stir evenly to obtain a mixing material;

[0027] (3) Molding: inject the mixture obtained above into the egg tray forming mold, and carry ...

Embodiment 2

[0030] A degradable packaging material of the present invention applied to seedling throwing tray products. The degradable packaging material is mainly obtained by mixing and heating citrus peel particles and an adhesive. The adhesive in this embodiment is formed by compounding polylactic acid and starch. and the mass ratio of citrus peel particles, polylactic acid and starch was 5:4:1.

[0031] The above-mentioned degradable packaging material product of the present embodiment is prepared through the following steps:

[0032] (1) Pretreatment: Pick 30kg of citrus, wash, peel, and then put the citrus peels after the active ingredients have been extracted in an oven for drying. The drying temperature is 80°C, and the drying time is 6 hours. After drying, the dried citrus peel residue is obtained (the moisture content after drying is 5%);

[0033] (2) Pulverization: the dried citrus peels obtained above are placed in a pulverizer for pulverization, the speed of the pulverizer i...

Embodiment 3

[0038]A degradable packaging material of the present invention applied to large-scale nutritional bowl products. The degradable packaging material is mainly obtained by mixing and heating citrus peel particles and an adhesive. The adhesive in this embodiment is compounded by polylactic acid and starch. and the mass ratio of citrus peel particles, polylactic acid and starch was 1.8:4.1:4.1.

[0039] The above-mentioned degradable packaging material product of the present embodiment is prepared through the following steps:

[0040] (1) Pretreatment: Pick 50kg of citrus, wash, peel, and then put the citrus peel dregs from which the active ingredients have been extracted in an oven for drying. The drying temperature is 75°C, and the drying time is 7 hours. After drying, the dried citrus peel residue is obtained (the water content after drying is 6%);

[0041] (2) Pulverization: the dried citrus peels obtained above are placed in a pulverizer for pulverization, the speed of the pu...

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Abstract

The invention discloses a degradable packaging material based on orange peel dregs, which is mainly prepared by mixing orange peel dreg particles and an adhesive and performing thermal forming on the mixture, wherein the mass ratio of the orange peel dreg particles to the adhesive is 1:(0.15-5). The degradable packaging material is prepared by the following steps of: drying to obtain dry orange peel dregs; crushing to obtain the orange peel dreg particles; mixing the orange peel dreg particles with the adhesive to obtain the mixture; and injecting the mixture into a forming mould for hot-forming processing. The degradable packaging material can be applied to nutrition bowls, seedling-throwing disks, fruit trays or egg trays and has the advantages of high product quality, high strength, artistic appearance, low cost, environmental friendliness and the like.

Description

technical field [0001] The invention relates to a packaging material and its preparation method and application, in particular to a degradable packaging material and its preparation method and application. Background technique [0002] In recent years, environmental pollution caused by waste plastics has attracted more and more attention. Disposable tableware, disposable plastic products, agricultural nutrition bowls, seedling throwing trays, etc. are difficult to recycle, and their treatment methods are mostly incineration and landfill. Incineration of plastic products will produce a large amount of harmful gases, which will pollute the environment; while burying plastic products will also pollute the environment because the polymers in them cannot be decomposed by microorganisms in a short time. The presence of discarded plastic products in the soil will hinder the development of crop roots and the absorption of water and nutrients, and will reduce the air permeability of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/46B65D85/34B65D85/32
CPCY02A40/90Y02W90/10
Inventor 单杨何建新李高阳付复华肖轲刘伟苏东林张群张菊华潘兆平李志江李志坚
Owner HUNAN AGRI PRODS PROCESSING INST
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