KR20220066448A - Egg plate using seaweeds and vegetable material and manufacturing method of the same - Google Patents

Abstract

The present invention relates to an egg carton comprising seaweed and vegetable raw materials, and a manufacturing method therefor. According to the present invention, the egg carton comprising seaweed and vegetable raw materials and the manufacturing method therefor are configured such that the egg carton is manufactured by using raw materials comprising both seaweed and vegetable by-products so as to secure biodegradability and optimize the weight and thickness, thereby having the advantage of being able to maintain strong durability.

Description

Egg plate using seaweeds and vegetable material and manufacturing method of the same}

The present invention relates to an egg plate containing seaweed and vegetable raw materials and a method for manufacturing the same.

The pulp mold is manufactured by dissolving recycled pulp such as wood pulp or newspaper or corrugated cardboard in water to form a uniform stock material, and as these materials are absorbed in the upper and lower molds, the pulp fibers in the stock are molded to form a certain structure and dried. It is an eco-friendly packaging material. Since it is a buffer material made from biodegradable pulp resources, the demand as an eco-friendly packaging material that can replace packaging materials based on fossil raw materials such as Styrofoam is continuously increasing. In fact, it is expected that the demand for eco-friendly and highly recyclable packaging materials will increase further due to the increase in small packaging as the number of parcels increases due to the expansion of online shopping and small households with one or two people become major economic agents.

In particular, with regard to egg boards among food packaging materials, eggs are easily broken even by a small external shock, so they are transported and stored in plastic or paper egg boards. The egg plate used at this time is manufactured by mixing various waste papers such as newspaper, corrugated cardboard, and magazines with water at 0.5 to 2% to make a pulp solution, adsorbing it in a vacuum, dehydrating it, and drying it. The manufacturing method is generally divided into a Tunnel Dry System method and a Hot Press Dry System method. The former is a hot air drying method and the latter is a hot press drying method. The hot press drying method not only does not deform the product because it is completely dried inside the mold, but also has a smooth surface, making it possible to upgrade the product. Eggs are placed in the oval grooves of the egg cartons manufactured and molded in this way, and the size of the egg cartons is variously supplied for the convenience of consumers, such as 10, 15, 20, and 30 pieces. Recently, in the case of egg plates for 20 or less, they are distributed in a form with a lid attached to prevent breakage of the eggs.

In general, a mold having a three-dimensional shape including an accommodation space is manufactured by molding paper pulp using wood as a raw material. However, since wood is used as a raw material, there is a problem of damage to nature due to logging. In order to solve this problem, a method for producing pulp using agar agar is presented in Korean Patent Publication No. 10-1847039. The above method suggests a specific method for producing pulp using agar agar, but does not suggest a process for manufacturing a mold. However, a problem has been found that the mold cannot be manufactured by a general method of manufacturing a mold because the fibers of agar agar (seaweed) pulp have a high water absorption rate.

Accordingly, there is a need for a method of manufacturing an egg board having a strong weight and thickness while combining seaweed with other vegetable materials, yet with strong durability.

Republic of Korea Patent Publication No. 10-1847039

An object of the present invention is to provide an egg plate containing seaweed and vegetable raw materials, and a method for manufacturing the same, in order to solve the above needs.

In order to achieve the above object, the present invention

A first step of filtering foreign substances from the seaweed sludge and preparing a raw material solution for seaweed fiber powder;

a second step of preparing a pulp solution by adding and stirring a vegetable raw material to the seaweed fiber powder stock solution;

a third step of putting the pulp solution into a mold and forming an egg plate shape by applying pressure; and

A fourth step of drying the molded egg plate is provided.

In addition, there is provided an egg plate comprising seaweed and vegetable raw materials, characterized in that produced according to the present invention.

The egg plate containing seaweed and vegetable raw materials and its manufacturing method have the effect of securing biodegradability, optimizing the weight and thickness, and having strong durability by manufacturing the egg plate containing seaweed and vegetable by-products at the same time.

Hereinafter, the present invention will be described in more detail.

According to one aspect of the present invention, there is provided a method comprising: a first step of filtering foreign substances from seaweed sludge and preparing a seaweed fiber powder stock solution; a second step of preparing a pulp solution by adding and stirring a vegetable raw material to the seaweed fiber powder stock solution; a third step of putting the pulp solution into a mold and forming an egg plate shape by applying pressure; and a fourth step of drying the molded egg plate.

The seaweed sludge of the present invention may include at least one of agar-agar, ceylon moss, sea string, seaweed, and kelp. The seaweed sludge may be a raw material of seaweed that has undergone softening. The seaweed sludge may be the remainder of the softened seaweed raw material devoid of food extracts. Seaweed sludge is in an unrefined state and may contain foreign substances.

The sludge filtering process can extract the pulp raw material liquid by filtering the seaweed sludge containing foreign substances from the filter device. The pulp raw material liquid from which large particles are filtered out may contain fine seaweed raw materials (agar agar, seaweed, seaweed, kelp, etc.). Seaweed raw materials may be in an unshelled state. The pulp raw material liquid filtered in the sludge filtering process may be accommodated in the pulping apparatus for the pulping process.

The vegetable raw material to be input according to the present invention may be added by classifying the coarse material and separating the vegetable fiber. When plant by-products are manufactured as a pulp mold, lumps that are not evenly distributed may appear agglomerated. It is preferable to perform mechanical fibrillation treatment by classification based on the mesh, including the process of classifying coarse particles by size. The fibrillation treatment can be performed by applying a kneader, a PFI mill, a colloid mill, a roll mill, a crusher, a refiner, a jet crusher, a homogenizer, and the like. Furthermore, it is desirable to prevent the occurrence of process problems as the pulp solution is prepared by adding vegetable fiber obtained through sea fiber pretreatment and classification in a predetermined weight ratio.

The vegetable raw material of the present invention may contain at least one selected from the group consisting of grain by-products, coconut by-products, coffee by-products, and fruit meal. Specifically, it may be a vegetable by-product such as coconut shell, grain shell, coffee powder, tangerine gourd, apple gourd, and green tea gourd, and the grain may be rice, barley, soybean, red bean, millet, sesame, wheat, medium, or corn.

In the pulping process, by stirring the pulp raw material solution accommodated in the pulping apparatus, it may be pulped to form pulp. In pulping, after extracting the seaweed, the fiber powder of the vegetable raw material, which is additionally added to the fiber raw material, which is a pulp ingredient, is spread at a uniform concentration, and it can be evenly spread in the liquid phase (eg, water).

In the pulping process, in order to promote the pulping of the pulp raw material liquid, a process of cutting seaweeds of the pulp raw liquid liquid may be added. Specifically, it can be used by cutting the seaweed sludge into 5 to 20 mm. The conventionally developed red algae (seaweed) pulp is not suitable for manufacturing paper because the fiber length is short. Accordingly, the method for producing seaweed pulp for paper of the present invention described below is characterized in that it includes processes for controlling the length of fibers of seaweed pulp. If the length is shorter than 5 mm, it is an obstacle to mold formation in the molding process, and if it is longer than 20 mm, there may be a problem that the speed of pulping the raw material solution becomes slow.

A propeller for stirring the pulp raw material liquid for pulping may be disposed inside the pulping apparatus. The pulp raw material liquid can receive kinetic energy to form a turbulent flow. The slower the rotation speed of the propeller agitating the raw pulp liquid, the lower the pulping speed of the raw pulp liquid. The rotation speed of the propeller may be set to 20 rpm to 50 rpm. Additionally, heat and pressure may be applied to the interior of the pulping apparatus to promote pulping. The smaller the applied thermal energy, the lower the pulping rate of the pulp raw material liquid, and the greater the thermal energy, the more cases in which seaweeds of the pulp raw liquid liquid are cut, thereby shortening the length of the seaweed. The lower the applied pressure, the lower the speed at which the pulp raw liquid is pulped into seaweed pulp. As the applied pressure is higher, the thinner the seaweed in the pulp raw liquid is, the more cases are cut, and the length of the seaweed can be shortened. . In consideration of this, it is preferable to set the range of heat and pressure.

In addition, a chemical catalyst or the like may be added to the raw material solution to promote the formation of pulp. Hydrogen peroxide and caustic soda may be added as a chemical catalyst. Additionally, a bleaching process to whiten the algae pulp may be added. As the pulping process and the bleaching process are repeated multiple times, white and pure pulp can be obtained, but the fiber length of the seaweed pulp may be shortened.

In addition, the method may further include a step of measuring and controlling the water content in order to process the seaweed having a high water content. It is desirable to implement a mold with a uniform thickness or a mold with a sophisticated shape by checking whether the concentration of the pulp liquid is in a state suitable for molding. It is preferable that the appropriate water content of the pulp liquid is 30 to 50%. To control the moisture content, heat may be applied to the device to evaporate or dehydrate the moisture, or additional pulp or water may be added.

After that, the pulp solution can be put into a mold and pressure is applied to form an egg plate shape. A pulp mold can be created by filling a mold (molding device) with a pulp liquid and applying pressure. The molding apparatus may include a lower mold and an upper mold. The forming process may include one or more of a wet forming process and a dry forming process. In the wet molding process and the dry molding process, the way in which the pulp liquid is filled in the lower mold may be different from each other. In the wet molding process, the lower mold is immersed in the liquid bath filled with the pulp liquid and then rises vertically to fill the lower mold with the pulp liquid. The dry forming process can pour the pulp liquid directly into the lower mold. Thereafter, it is dried to provide an egg plate containing seaweed and vegetable raw materials.

According to another aspect of the present invention, there is provided an egg plate comprising seaweed and vegetable raw materials, characterized in that produced according to the present invention. The egg plate containing seaweed and vegetable raw materials of the present invention has biodegradability by using eco-friendly materials, and can secure a constant surface according to the length of seaweed sludge before the pulping process and the classification treatment of coarse substances of vegetable raw materials. Furthermore, it is possible to prevent gelation of pulp, including seaweeds with high water content, to form an intact mold, and to secure antibacterial and antiviral functions according to the functional substances contained in the vegetable raw material. In addition, compared to the existing egg plate, the compressive strength is significantly improved, and the durability is excellent by adjusting the weight and thickness.

<Example>

The mixing ratio of the egg plate containing seaweed according to the present invention is shown in Table 1 below.

ingredient Mixing ratio (%) sexagenary cycle 37 art paper 20 BTMP 10 seaweed 30 etc 3

<Physical data>

The physical property data of the egg carton containing seaweed according to the present invention are shown in Table 2 below, and the physical property data of the conventional egg carton is shown in Table 3 below.

Compressive strength (kfg) Weight (g) Thickness (mm) One 88.80 54.9 1.404 2 84.25 50.4 1.401 3 86.10 55.7 1.373 4 87.40 55.1 1.414 5 85.42 55.0 1.344 Average 86.39 54.2 1.387

Compressive strength (kfg) Weight (g) Thickness (mm) One 50.25 44.8 0.752 2 44.65 44.5 0.665 3 47.70 44.4 0.785 4 49.20 45.1 0.834 5 50.90 44.9 0.650 Average 48.54 44.7 0.737

The foregoing has outlined rather broadly the features and technical advantages of the present invention so that the following claims may be better understood. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the claims and their equivalents should be construed as being included in the scope of the present invention.

Claims (5)

A first step of filtering foreign substances from the seaweed sludge and preparing a raw material solution for seaweed fiber powder;
a second step of preparing a pulp solution by adding and stirring a vegetable raw material to the seaweed fiber powder stock solution;
a third step of putting the pulp solution into a mold and forming an egg plate shape by applying pressure; and
A method for producing an egg board comprising seaweed and vegetable raw materials, including a fourth step of drying the molded egg board.
The method of claim 1,
The seaweed sludge is a method for producing an egg plate comprising seaweed and vegetable raw materials including at least one of agar agar, seaweed, seaweed and kelp.
The method of claim 1,
The vegetable raw material is a grain by-product, a coconut by-product, a coffee by-product, and a method for producing an egg carton comprising seaweed and a vegetable raw material, characterized in that it contains at least one selected from the group consisting of fruit meal.
The method of claim 1,
The first step is a method for producing an egg plate containing seaweed and vegetable raw materials, characterized in that it further comprises the step of cutting the seaweed sludge to 5 ~ 20 mm.
An egg plate comprising seaweed and vegetable raw materials, characterized in that it is prepared according to claim 1.