KR19980026295A - Packing container and its manufacturing method - Google Patents

Abstract

The present invention relates to a packaging container using a grain husk waste and a method for manufacturing the same, which is made from grain husk waste as a main raw material, and then pulverized, stirred (mixed with stirring), plate making, primary forming, secondary forming, shaping, Complete packaging containers are prepared by drying, surface treatment and drying processes.

Description

Packing container and its manufacturing method

The present invention relates to a packaging container and a method for manufacturing the same according to environmental protection produced by appropriately processing and molding the grain husk waste.

In general, packaging containers and disposable tableware are articles that are used in large quantities in everyday life by modern people. In particular, disposable tableware and tableware dishes are the mainstream means for storing or packing foods due to personal hygiene and convenience. As such, polypropylene and the like are mainly used as disposable tableware or food packaging plates, but such plastic tableware and packaging dishes are not suitable as food containers. This is because high heat releases toxic substances. Many manufacturers, however, tolerate contamination problems for reasons of low manufacturing costs, and continue to use them because of the user's or convenience of use and disposal, which poses a potential risk to the health of users.

Moreover, disposable tableware or food-welding dishes made of plastics cause serious environmental pollution.

Therefore, in order to solve the environmental impact and the health effects of disposable disposable tableware or food receiving dishes made of plastic materials, tableware mainly containing grain and plant starch (potato starch, etc.) has been developed. However, grain is one of the staple foods of mankind, and it is not desirable to mass produce and use grain-based containers, considering that many people die each year from starvation.

The main problem of the present invention is to provide a kind of packaging container and its manufacturing method, which is a packaging container using grain husk waste to fully utilize the grain husk waste, and does not harm the health of the human body, It is to achieve the effect of not destroying the environment.

Another object of the present invention is to make it possible to reliably produce a packaging container through an effective step of the manufacturing method.

Another object of the present invention is to ensure that the packaging container can be industrially applied.

1 is a flow chart of the manufacturing method according to the invention,

2 is a schematic diagram of a manufacturing system used in the present invention;

3, 4 and 5 are cross-sectional views of the press working process according to the present invention,

6 is a schematic view showing another embodiment of a plate making process according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: raw material 20: grinding process

21: grinder 30: stirring process

31 agitator 32 agitator

40: engraving process 41: collection tank

42: press roller set 43: conveyor belt

44: laminator 50: primary molding process

51: male mold 52: female mold

60: secondary molding process 61: male mold for secondary molding

62: female mold for secondary molding 70: shaping process

71: orthopedic male mold 72: orthopedic female mold

80, 100: drying process 82: heat drying apparatus

90 surface treatment step 91 surface treatment machine

101: heat drying apparatus 110: finished packaging container

320: stirring material sheet 321: laminated stirring material

322: semi-finished products after primary molding

323: Semi finished products after secondary molding 521, 522: Bent parts

621, 622, 3231, 3232: bend

3221, 3222: Split part 3223, 3224: Connected part

5211, 6211: Separation Rod

Embodiment of the Invention

The present invention relates to a packaging container and a method for manufacturing the same, and to manufacture a complete packaging container by the process of crushing, stirring the grain husk waste, platemaking, primary molding, secondary molding, shaping, drying, surface treatment and drying It is in line with the philosophy of environmental protection and is of value in industry.

EXAMPLE

As shown in Figures 1 and 2, the manufacturing method of the present invention is a grinding process 20, stirring process 30, plate making process 40, primary molding process 50, secondary molding process 60 , A shaping step 70, a drying step 80, a surface treatment step 90, and a drying 100 step. The raw material 10, ie, the grain husk, is pulverized in the grinder 21 to be in a powdery state, and the grain husk powder is separated according to the granularity and used to prepare packaging containers having different properties as necessary.

Next, 2.6% by weight of the food adhesive is added to 97.4% by weight of the grain husk and stirred and mixed in the stirrer 31. The food adhesive is a kind of edible, non-toxic adhesive. At the same time, steam is injected, steam is injected at a pressure of about 71b / cm 2, the rotational speed is appropriately controlled, and the stirring proceeds to the crude liquid phase stirring material in which the grain husk powder is uniformly mixed. (32) ie made from semi-finished raw materials.

The stirring material 32 is sent to one collection tank 41 to wait for the plate making process 40, the press roller set 42 and the conveyor belt 43 is installed at the bottom of the collection tank 41, the production line In this case, the stirring material 32 is pressurized by the press roller to form a continuous stirring material sheet 320 having a thickness of about 0.7 mm.

The stirring material sheet 320 is sent to one laminator 44, and lamination | stacking of four or more layers progresses in the laminator 44, and it is sent as the lamination | stacking laminated material 321 which was loosely overlapped.

The continuous stirrer 321 is passed through the mold by entering the process of the primary molding process 50, about 150 ~ 180㎏ / ㎠ in a pair of molds and female molds combined up and down A press product is applied to produce a semifinished product 322 after primary molding (see FIGS. 3 to 5).

The raw material 10, which is a grain husk, has almost no fiber, and thus the laminated stirring material 321 is insulated and cracked by the bent portions 521 and 522 of the female mold 52 when pressed in the primary molding. 3222), only connected to the portions shown at 3223 and 3224. For this reason, the secondary molding process 60 is required for the semi-finished product 322 after primary molding having a portion cracked at the curved portion. Therefore, the semi-finished product 322 after primary molding using the mold separating rod 5211 of the female mold 52 is the male mold 61 for secondary molding 60 and the female mold 62 for secondary molding 60. ) And also the press is in progress at the same time instantaneous heating to about 100 degrees Celsius to make the semi-finished product 323 after the second molding. At this time, since the laminated stirring material 321 is loosely overlapped, when the secondary parts are pressed by the bending portions 621 and 622 of the male mold 61 for secondary molding and the female mold 62 for secondary molding, the laminations are loosely stacked. The stirring material 321 causes a preservation action, and is connected to the bent portions 3231 and 3232 of the semi-finished product 323 after the secondary molding.

6 is another embodiment of the plate making process 40. Since the stirring material 32 flowing into the conveyor belt 43 from the collection tank 41 is in a thick plate state, the press roller is used. It is added directly to the primary molding process 50, the purpose is to produce a vertically long packaging container.

Since the semi-finished product 323 after the secondary molding is flexible and does not have an appropriate strength, it requires a shaping step 70. Further, the semi-finished product 323 is required to be formed using a mold separation rod 6171 of the female mold 62 for secondary molding. While flowing into the orthopedic male mold 71 and the orthopedic female mold 72, the instantaneous heating is performed at 100 degrees Celsius, and press forming proceeds, thereby increasing the overall strength.

Moreover, the drying process 80 is advanced with respect to the semi-finished product after shaping | molding. That is, the air is dewatered from about 60 to 80 degrees Celsius in the towing and heat drying device 82 of the conveyor belt 43. In addition, the semi-finished product after drying is subjected to the surface treatment step 90, the varnish coating process is carried out in the surface treatment machine (91). At this time, the varnish is made of non-toxic and edible protective varnish. The semi-finished product after drying is subjected to another drying treatment step 100 after the surface treatment. The drying treatment step 100 is carried out at a temperature of about 180 to 200 degrees Celsius in the heat drying apparatus 101 to form a single plate. A packaging container finished product 110 is formed.

As can be seen from the above description, the finished product packaging container 110 is made of a kind of waste material called grain husk as a raw material, and then pulverized, stirred, and plated, and then loosely laminated to make a container state by primary molding press, and then molding. The torn part of the bent part is completely replenished in the operation control process of the secondary molding press, the shaping press, and the instantaneous heating, and the semi-finished product with the complete container shape is finished, followed by painting and drying the varnish as a surface treatment. Will be.

The finished container 110 is about 2 to 40 hours in which the thermal liquid can be accommodated for a long time, and is made completely practical. In addition, the above acceptance time is controlled by the varnish coating thickness of the surface and the heat drying temperature.

The packaging container and its manufacturing method of the present invention has at least the following excellent characteristics, firstly, the manufacturing method of the present invention solves the drawback that the grain shell packaging container can not accommodate the general liquid food for a long time, and in fact liquid A product that can be utilized as a food or other food packaging container can be provided.

In addition, the manufacturing method of the present invention allows to form a powder of grain husk, which has not been possible so far, to provide a complete packaging container.

In addition, the packaging container of the present invention does not generate toxins due to the high temperature when accommodating food, and after use, it is incinerated or decomposed in nature to meet the requirements of environmental protection, and is easily dissolved and dissolved in water. It does not become a waste that does not decompose permanently, such as plastic containers.

In addition, the packaging container of the present invention is naturally capable of complete decomposition because water enters due to cracking after insulation.

Claims (7)

The adhesive is added at the same time as the crushing process and agitation process to make the grain husk, which is a waste, as a main raw material, and is heated and dried at the same time as the plate making process, the primary molding process, and the secondary molding process. A method for producing a packaging container for producing a finished product packaging container made through a drying process after the surface treatment to varnish. The method of manufacturing a packaging container according to claim 1, wherein the pressure-sensitive adhesive is a non-toxic, edible food adhesive. The method of manufacturing a packaging container according to claim 1, wherein the material after grinding and stirring is first processed into a sheet state in a sheet-making process, and a plurality of layers are laminated to form a laminated stirring material. The method of manufacturing a packaging container according to claim 1, wherein the surface treatment is a non-toxic, edible and easily degradable protective varnish. The method for manufacturing a packaging container according to claim 1, wherein in the secondary molding and shaping process, the shaping is carried out first, and then the shaping is performed, or two advancing processes are performed at the same time. The method of manufacturing a packaging container according to claim 1, further comprising a plate making process in which the material having been agitated above is brought into a plate state and directly entered into a primary molding process. The packaging container manufactured by the manufacturing method of the packaging container in any one of Claims 1-6.