阅读说明：本技术 一种环保型生物降解食品包装盒 (Environment-friendly biodegradable food package box ) 是由 唐玉 许霞 于 2020-06-08 设计创作，主要内容包括：本发明公开了一种环保型生物降解食品包装盒,所述食品包装盒由以下原料制备而成：所述原料按重量份数比为：红薯淀粉30-45份、羟丙基甲基纤维素8-12份、植物纤维改性剂1-2份、抗菌溶剂3-8份、聚乙二醇4-6份、乳化胶1-2份、纤维素酶0.05-0.1份、多元醇1-3份、壳聚糖6-8份和复合填料6-8份；本发明利用红薯淀粉、羟丙基甲基纤维素、植物纤维改性剂、抗菌溶剂、聚乙二醇、乳化胶、纤维素酶、多元醇、壳聚糖和复合填料搭配,混合,经搅拌、烘干、挤压成型等工序制备得到食品包装盒,所需工艺流程简单,包装盒的制造材料均为可降解材料,使得食品包装盒在使用完后,及时无人处理,也能够缓慢降解,降低了食品包装盒对大自然的危害,属于环保型生物可降解包装盒。(The invention discloses an environment-friendly biodegradable food packaging box which is prepared from the following raw materials: the raw materials comprise the following components in parts by weight: 30-45 parts of sweet potato starch, 8-12 parts of hydroxypropyl methyl cellulose, 1-2 parts of a plant fiber modifier, 3-8 parts of an antibacterial solvent, 4-6 parts of polyethylene glycol, 1-2 parts of emulsion gum, 0.05-0.1 part of cellulase, 1-3 parts of polyhydric alcohol, 6-8 parts of chitosan and 6-8 parts of a composite filler; the food packaging box is prepared by matching sweet potato starch, hydroxypropyl methyl cellulose, a plant fiber modifier, an antibacterial solvent, polyethylene glycol, emulsifying gum, cellulase, polyhydric alcohol, chitosan and a composite filler, mixing, stirring, drying, extruding and forming and the like.)

1. The environment-friendly biodegradable food packaging box is characterized by being prepared from the following raw materials: the raw materials comprise the following components in parts by weight: 30-45 parts of sweet potato starch, 8-12 parts of hydroxypropyl methyl cellulose, 1-2 parts of a plant fiber modifier, 3-8 parts of an antibacterial solvent, 4-6 parts of polyethylene glycol, 1-2 parts of emulsion gum, 0.05-0.1 part of cellulase, 1-3 parts of polyhydric alcohol, 6-8 parts of chitosan and 6-8 parts of a composite filler.

2. The packaging box for environment-friendly biodegradable food as set forth in claim 1, wherein: the antibacterial solvent is prepared from the following raw materials in parts by weight: 4-6 parts of common andrographis herb, 2-5 parts of Chinese gall, 2-4 parts of cacumen biotae, 1-4 parts of radix ophiopogonis and 6-9 parts of dahurian rhododendron leaf.

3. The packaging box for environment-friendly biodegradable food as set forth in claim 2, wherein: the preparation method of the antibacterial solvent comprises the following steps:

placing herba Andrographitis, Galla chinensis, folium Platycladi, radix Ophiopogonis, folium Rhododendri Daurici and flos Hibisci Mutabilis in a mixing furnace, adding 45-60 parts of water, decocting at 80-90 deg.C for 80-100 min, cooling to 60-75 deg.C, keeping the temperature for 20-40 min, transferring into a filter, and filtering to obtain Chinese medicinal liquid; then transferring the filtered solution into a compressor, concentrating the liquid medicine under reduced pressure, transferring into a dryer, and drying to obtain the antibacterial solvent.

4. The packaging box for environment-friendly biodegradable food as set forth in claim 3, wherein: the drying temperature of the dryer is 250-350 ℃, and the drying time is 25-40 minutes.

5. The packaging box for environment-friendly biodegradable food as set forth in claim 1, wherein: the composite filler is any one or mixture of more of graphene oxide, flax fiber and cellulose nanowhiskers.

6. The packaging box for environment-friendly biodegradable food as set forth in claim 1, wherein: when the packaging box is prepared, the method comprises the following steps:

step one, placing sweet potato starch in a stirring container, adding 3-5 parts of water, and stirring for 2-3 minutes;

step two, adding hydroxypropyl methyl cellulose and a plant fiber modifier, adding 1-2 parts of water, and stirring for 6-8 minutes;

adding 0.05-0.1 part of antibacterial solvent, polyethylene glycol, emulsion glue and cellulase, and stirring for 6-8 minutes;

adding the polyol, the chitosan and the composite filler, and stirring for 15-20 minutes to obtain a mixture;

step five, heating the stirring container to obtain a viscous mixture;

step six, pouring the viscous mixture prepared in the step five into a double-screw extruder, and extruding into a die for molding;

and seventhly, carrying out induction heating together with the mold to 260-300 ℃, keeping the temperature for 15-25 seconds, and then cooling to room temperature to obtain the environment-friendly biodegradable food packaging box.

7. The packaging box for environment-friendly biodegradable food as set forth in claim 6, wherein: in the fifth step, the heating time of the stirring container is 10-15 minutes, and the temperature is 150-250 ℃.

8. The packaging box for environment-friendly biodegradable food as set forth in claim 6, wherein: in the sixth step, the mixture in a viscous state is poured into a double-screw extruder and then is melted and blended in the environment with the temperature of 100 ℃ and 110 ℃.

Technical Field

The invention belongs to the technical field of food packaging, and particularly relates to an environment-friendly biodegradable food packaging box.

Background

Food packaging (food packaging) is an integral part of a food commodity. One of the major projects in the food industry process. It protects the food, prevents the damage of biological, chemical and physical external factors in the process of the food leaving the factory to the hand of the consumer, and it can also have the function of keeping the stable quality of the food itself, it is convenient for the food to eat, it expresses the food appearance at first, attracts the image of consumption, and has the value beyond the material cost. Therefore, the food packaging process is also an integral part of the food manufacturing system engineering. The versatility of the food packaging process makes it relatively self-contained.

The food package can be divided into metal, glass, paper, plastic, composite materials and the like according to the package materials, can be divided into cans, bottles, bags, rolls, boxes, and the like according to the package types, and can be divided into canning, bottling, packaging, bagging, wrapping, pouring, collecting, sealing, labeling, code spraying and the like according to the package modes; the product can be divided into an inner package, a secondary package, a tertiary package … … outer package and the like according to the product level.

The packaging box for food is one of the packaging products with the largest number used by people at present, however, the food packaging box used by people at present is buried underground after people discard the food packaging box, if the food packaging box is lost to an unattended area or a small number of people attend to the area, the natural degradation can be completed in a long time, in the degradation process, the damage to the soil and the environment around the packaging box can be caused, and the environment is not protected, so that the environment-friendly biodegradable food packaging box is provided.

Disclosure of Invention

The invention aims to provide an environment-friendly biodegradable food packaging box to solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme: the environment-friendly biodegradable food packaging box is prepared from the following raw materials: the raw materials comprise the following components in parts by weight: 30-45 parts of sweet potato starch, 8-12 parts of hydroxypropyl methyl cellulose, 1-2 parts of a plant fiber modifier, 3-8 parts of an antibacterial solvent, 4-6 parts of polyethylene glycol, 1-2 parts of emulsion gum, 0.05-0.1 part of cellulase, 1-3 parts of polyhydric alcohol, 6-8 parts of chitosan and 6-8 parts of a composite filler.

Preferably: the antibacterial solvent is prepared from the following raw materials in parts by weight: 4-6 parts of common andrographis herb, 2-5 parts of Chinese gall, 2-4 parts of cacumen biotae, 1-4 parts of radix ophiopogonis and 6-9 parts of dahurian rhododendron leaf.

Preferably: the preparation method of the antibacterial solvent comprises the following steps:

placing herba Andrographitis, Galla chinensis, folium Platycladi, radix Ophiopogonis, folium Rhododendri Daurici and flos Hibisci Mutabilis in a mixing furnace, adding 45-60 parts of water, decocting at 80-90 deg.C for 80-100 min, cooling to 60-75 deg.C, keeping the temperature for 20-40 min, transferring into a filter, and filtering to obtain Chinese medicinal liquid; then transferring the filtered solution into a compressor, concentrating the liquid medicine under reduced pressure, transferring into a dryer, and drying to obtain the antibacterial solvent.

Preferably: the drying temperature of the dryer is 250-350 ℃, and the drying time is 25-40 minutes.

Preferably: the composite filler is any one or mixture of more of graphene oxide, flax fiber and cellulose nanowhiskers.

Preferably: when the packaging box is prepared, the method comprises the following steps:

step one, placing sweet potato starch in a stirring container, adding 3-5 parts of water, and stirring for 2-3 minutes;

step two, adding hydroxypropyl methyl cellulose and a plant fiber modifier, adding 1-2 parts of water, and stirring for 6-8 minutes;

adding 0.05-0.1 part of antibacterial solvent, polyethylene glycol, emulsion glue and cellulase, and stirring for 6-8 minutes;

adding the polyol, the chitosan and the composite filler, and stirring for 15-20 minutes to obtain a mixture;

step five, heating the stirring container to obtain a viscous mixture;

step six, pouring the viscous mixture prepared in the step five into a double-screw extruder, and extruding into a die for molding;

and seventhly, carrying out induction heating together with the mold to 260-300 ℃, keeping the temperature for 15-25 seconds, and then cooling to room temperature to obtain the environment-friendly biodegradable food packaging box.

Preferably: in the fifth step, the heating time of the stirring container is 10-15 minutes, and the temperature is 150-250 ℃.

Preferably: in the sixth step, the mixture in a viscous state is poured into a double-screw extruder and then is melted and blended in the environment with the temperature of 100 ℃ and 110 ℃.

The invention has the technical effects and advantages that: compared with the prior art, the environment-friendly biodegradable food packaging box provided by the invention has the following advantages:

the food packaging box is prepared by matching sweet potato starch, hydroxypropyl methyl cellulose, a plant fiber modifier, an antibacterial solvent, polyethylene glycol, emulsifying gum, cellulase, polyhydric alcohol, chitosan and a composite filler, mixing, stirring, drying, extruding and forming and other processes, the required process flow is simple, and the manufacturing materials of the packaging box are degradable materials, so that the food packaging box is free of treatment in time after being used and can be slowly degraded, the harm of the food packaging box to the nature is reduced, and the food packaging box belongs to an environment-friendly biodegradable packaging box;

two, this compound packing collocation antibacterial solvent in the packing carton can be so that the food package box who produces has certain pliability, under the degradable prerequisite, improves food package box's deformability, can also make the food package box who produces have antibiotic effect, reduces the possibility that the food in the packing carton is by bacterial contamination, improves the security quality of food.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to data in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.