CN216547647U - Degradable environment-friendly lunch box suitable for containing solid food - Google Patents

Abstract

The utility model relates to the technical field of disposable tableware, in particular to a degradable environment-friendly lunch box suitable for containing solid food. Aiming at the defects and shortcomings of the solid food storage and transportation tool in the prior art. The structure includes box body, lid, and the box body includes middle supporting layer that the regeneration paper pulp was made, and middle supporting layer inboard is the inner wall layer that plant fiber made, and the middle supporting layer outside is the outer wall layer that plant fiber made, middle supporting layer and inner wall layer, outer wall layer between be the sticky rice glue film, the lid structure the same with the box body to close the knot and be in the same place. The inner side wall layer, the middle layer and the outer side wall layer of the lunch box are all structural layers made of completely degradable plant fiber materials. Particularly, the structure of the middle layer is optimized, so that the mechanical bearing performance of the whole box body is greatly improved. The method is mainly used for storing and transporting solid food. Can be completely and naturally degraded, and is a green product without pollution.

Description

Degradable environment-friendly lunch box suitable for containing solid food

Technical Field

The utility model relates to the technical field of disposable tableware, in particular to a degradable environment-friendly lunch box suitable for containing solid food.

Background

A large amount of disposable tableware is used in daily life, but the existing disposable tableware is basically made of plastic packaging materials and cannot be degraded.

The plastic lunch box is made of foaming materials, when the temperature of food reaches 65 ℃, harmful substances in the disposable plastic tableware can permeate into the food and can cause harm to human bodies; the plastic is made of composite materials, the degradation time is long, the natural treatment needs 200 years or more, a large amount of land is occupied if the plastic is not treated, the soil fertility is difficult to recover, and secondary pollution to the atmosphere can be caused if the waste plastic is directly subjected to incineration treatment.

In the prior art, patent CN202664554U discloses a lunch box, the body of which is formed by stacking degradable straw fiber layer 1 and inner plastic film layer 2. Although the straw fiber layer can ensure the use strength of the lunch box, the plastic film layer ensures that the lunch box does not leak, and after the straw fiber layer is used up, the outer layer straw fiber can be degraded after a period of time, but the inner layer plastic film still belongs to a non-degradable material, is in direct contact with food, and can release toxic substances at high temperature. And the straw fiber layer of the lunch box has not high strength and is easy to deform when in use.

CN210276260U discloses a disposable snack box of environment-friendly degradable, comprises a box body, the top of box body is provided with the lid, the inner wall fixed mounting of box body has the heat insulating board, the inner wall fixed mounting of lid has the protective layer, the bottom fixed mounting of box body has rubber base, rubber base's inside fixed mounting has the heat insulating block, the outside fixed mounting of box body has the protection film, the box body back just is located and is provided with adapting unit between box body and the lid. Theoretically, the heat insulation effect can be realized, but the structure is too complex and the cost is high.

CN203262504U discloses a degradable foaming cutlery box that contains PHA, including the box body, its characterized in that: the box body comprises a first degradable layer which is a PHA layer; the first base material layer is a bamboo fiber layer, the upper surface of the first base material layer is covered with the first degradable layer, the lower surface of the first base material layer is covered with the first foaming layer, and the first foaming layer is a PS foaming layer; and a second substrate layer is arranged below the first foaming layer, the second substrate layer is a bamboo fiber layer, the lower surface of the second substrate layer covers a second degradable layer, and the second degradable layer is a PCL layer. Adopt above-mentioned scheme can show the sturdiness and the health of improving the cutlery box. In this structure, the PS foam is used, and the PS foam does not contact food, but is still contaminated after being incinerated or buried as garbage.

The above prior art has also mainly focused on solving the environmental protection and safety properties of the lunch box for containing fast food such as freshly processed meal, dishes, soup, etc. having a certain temperature. However, in life, besides fast food, other foods, such as solid foods like bread, sushi, various kinds of cake, etc., need to be held and carried. The food has the characteristics of no soup and no need of deliberately pursuing leakage prevention. However, the tableware is heavy and cannot be deformed in the storage and transportation process, and the tableware for containing the food is mainly supported by materials such as plastics and stainless steel, so that the effect of green and pollution-free cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a degradable environment-friendly lunch box suitable for containing solid food, aiming at the defects and shortcomings of solid food storage and transportation tools in the prior art.

The technical scheme is that the degradable environment-friendly lunch box suitable for containing solid food comprises a box body and a box cover, wherein the box body comprises a middle supporting layer made of regenerated paper pulp, an inner wall layer made of plant fiber is arranged on the inner side of the middle supporting layer, an outer wall layer made of plant fiber is arranged on the outer side of the middle supporting layer, a glutinous rice glue layer is arranged among the middle supporting layer, the inner wall layer and the outer wall layer, and the box cover is identical to the box body in structure and is buckled together.

This application uses the regeneration paper pulp layer as the middle supporting layer at middle part, plays and supports food, prevents to warp and thermal-insulated effect, inside wall and outer lateral wall layer are the plant fiber layer, are equipped with the glutinous rice glue film of innoxious between middle supporting layer and cutlery box inside wall and the cutlery box lateral wall, play the bonding to and prevent the effect of seepage in the certain time.

The bottom of the box body is rectangular, the two side faces of the middle supporting layer are provided with reinforcing ribs, the reinforcing ribs on the side walls of the box body are perpendicular to the bottom of the lunch box, and the reinforcing ribs on the bottom of the lunch box are perpendicular to the short edges of the bottom of the lunch box.

The structural design of the utility model can strengthen the strength in the length direction, and the lunch box can not be broken when stacked in multiple layers and carried in a long distance under the condition that the food in the lunch box is heavy.

Compared with the prior art, the inner side wall layer, the middle layer and the outer side wall layer of the lunch box are all made of completely degradable plant fiber materials. Particularly, the structure of the middle layer is optimized, so that the mechanical bearing performance of the whole box body is greatly improved. Is mainly used for storing and transporting solid food such as rice, cake and sushi. The lunch box can be completely and naturally degraded after not being used, and is a green product without pollution.

Drawings

FIG. 1 is a schematic illustration of a product of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a view showing one of the sectional structures A-A of FIG. 3;

FIG. 5 is a second structural view of the section A-A of FIG. 3;

FIG. 6 is a third structural view of the section A-A of FIG. 3;

in the figure: 1 is a horizontal edge, 2 is an inner wall layer, 3 is a box bottom, 4 is an outer wall layer, 5 is a middle supporting layer, and 6 is a glutinous rice glue layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings 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 of the embodiments. 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.

As shown in fig. 1, 2 and 3, a degradable environment-friendly lunch box suitable for containing solid food comprises a box body and a box cover, wherein the box body comprises a middle support layer 5 made of regenerated paper pulp, an inner wall layer 2 made of plant fiber is arranged on the inner side of the middle support layer 5, an outer wall layer 4 made of plant fiber is arranged on the outer side of the middle support layer 5, a glutinous rice glue layer 6 is arranged between the middle support layer 5 and the inner wall layer 2 as well as between the middle support layer 5 and the outer wall layer 4, and the box cover has the same structure as the box body and is buckled together.

This application uses the regeneration paper pulp layer as middle supporting layer 5 at middle part, plays support food, prevents that the box body from warping and thermal-insulated effect, and inside wall 2 and outer wall layer 4 are the plant fiber layer, as illustrated in fig. 4, are equipped with glutinous rice glue film 6 between middle supporting layer 5 and cutlery box inside wall and the cutlery box lateral wall, play the bonding to and prevent the effect of seepage in the certain period.

The bottom of the box body is rectangular, wherein two side surfaces of the middle supporting layer 5 are provided with raised reinforcing ribs, the reinforcing ribs on the side wall of the box body are perpendicular to the bottom of the lunch box, and the reinforcing ribs on the bottom of the lunch box are perpendicular to the short edges of the bottom of the lunch box.

In another embodiment of the present invention, as shown in fig. 5, the middle supporting layer 5 is a plurality of round tubes arranged in parallel. The round tubes are arranged in parallel, the middle parts of the round tubes are of hollow structures, heat insulation is achieved, mechanical properties are good, and the lunch box can be prevented from longitudinally deforming.

In a third embodiment of the utility model, as illustrated in fig. 6, the intermediate support layer 5 is a corrugated plate. The corrugated plate can also form a transverse hollow structure, and plays roles in heat insulation and mechanical property reinforcement.

As shown in fig. 1 and 2, a horizontal edge 1 is provided at the upper edge of the box body and the box cover. The horizontal edge 1 can reinforce the box body, and the supporting force becomes strong; prevent the hand from contacting the inner wall, ensure the sanitation of the inner part of the box body, and ensure the effects of tight butt joint of the box body and the box cover, etc.

In the actual manufacturing scheme, the inner side wall layer is made of fiber paper made of leaf fibers with good waterproof and oilproof handfeel, such as reed leaves and the like; the fiber paper of the inner side wall layer is made of commercially available food grade plant fiber paper, such as: kraft paper and food-grade white cardboard can be directly contacted with food. The middle layer and the outer wall layer are also preferably made of food-grade plant fiber paper.

The middle supporting layer 5 uses a fiber layer made of hard leaf fibers as a support, such as palm leaves and the like; the outer side wall layer is wrapped by fiber paper made of soft leaves such as banana leaf fiber. Two adjacent layers are attached with glutinous rice glue and are formed into the shape of a lunch box by a hydraulic compression mode.

Of course, we can also make various types of fiber paper by the following steps: 1. the materials are obtained. The branches under roadside shade trees are taken, leaves on the branches are taken down, crushed and then placed in the sun for drying, and the water in mesophyll tissues is possibly removed. Simultaneously, ramie is added. 2. Pulping. Adopting an alkaline method for pulping, putting 1mol/L NaOH solution into a beaker, weighing raw materials and ingredients, completely immersing the raw materials and the ingredients into the solution with the bath ratio of 1:3.5, controlling the temperature to boil at 140 ℃, and keeping the boiling state for 30 minutes to obtain slurry in the beaker. 3. And (4) bleaching. The pulp can be bleached to different degrees according to the use requirements of products, such as bleaching with sodium hypochlorite, sodium chlorite or chlorine dioxide. 4. And (6) profiling. The slurry was fished out with a stainless steel wire mesh and washed with water until the pH was weakly alkaline. Mixing waste paper pulp and leaf pulp, stirring, filling into prepared self-made mould, heating, sucking and pressing to form. 5. And (5) drying. Putting the mixture into an oven, drying the mixture for 90 minutes at 120 ℃, taking the mixture out, and spraying the mixture on the surface of a product by using a 1% acetic acid solution as a preservative. And then the temperature is controlled to be 100 ℃ and the product is obtained after drying for 60 minutes. 6. And (3) bonding fiber paper. And adhering the multi-layer fiber paper by using environment-friendly glutinous rice glue. 7. And (5) compression molding. And hydraulically compressing the multiple layers of fiber paper by using a hydraulic compression technology, and finally molding.

The pure natural plant fiber paper prepared by the scheme has poor water permeability resistance under the condition of not increasing chemical additives, and is not suitable for storing liquid foods for a long time.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims (5)

1. The utility model provides a degradable environmental protection cutlery box suitable for hold solid food, includes box body, lid, its characterized in that: the box body include middle supporting layer (5) that the regeneration paper pulp was made, middle supporting layer (5) inboard is interior wall layer (2) that plant fiber made, middle supporting layer (5) outside is outer wall layer (4) that plant fiber made, middle supporting layer (5) and interior wall layer (2), outer wall layer (4) between be glutinous rice glue film (6), the lid structure the same with the box body to close the knot together.

2. The degradable environment-friendly lunch box suitable for containing solid food as claimed in claim 1, wherein: the bottom of the box body is rectangular, the two side faces of the middle supporting layer (5) are provided with raised reinforcing ribs, the reinforcing ribs on the side walls of the box body are perpendicular to the bottom of the lunch box, and the reinforcing ribs on the bottom of the lunch box are perpendicular to the short edges of the bottom of the lunch box.

3. A degradable environment-friendly lunch box suitable for containing solid food according to claim 1 or 2, wherein: the middle supporting layer (5) is a plurality of round pipes which are arranged in parallel.

4. A degradable environment-friendly lunch box suitable for containing solid food according to claim 1 or 2, wherein: the middle supporting layer (5) is a corrugated plate.

5. The degradable environment-friendly lunch box suitable for containing solid food as claimed in claim 1, wherein: the upper edges of the box body and the box cover are provided with horizontal edges (1).

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