KR20010100091A - Disposable bowl & it's manufacturing method with grass fiber - Google Patents

Abstract

The present invention relates to a disposable food container and a manufacturing method, unlike the method using a conventional synthetic resin material having a lot of environmental risks, according to the disposal of the container after the use of the container by producing a container using hay of one year as the main raw material The aim is to provide a way to reduce environmental pollution.

The first-year hay to achieve the above object can be straw, rice straw, barley straw, reed, corn, sugar cane and the like, the above materials are obtained through the appropriate physical chemical treatment means in the form of pulp. The pulp obtained is obtained in paper-like shape through the papermaking dewatering process in the same manner as the papermaking process. In this case, in general, the paper is rolled through a drying process to complete the product, but the method according to the present invention is introduced into a mold having a certain shape immediately before the web-formed pulp is completely dried, so that it can be pressed and dried. To produce a disposable food container.

Description

Disposable bowl & it's manufacturing method with grass fiber

The present invention relates to a method of manufacturing a disposable food container using vegetable fiber, until recently, in the case of disposable food containers, foamed styrene has been widely used due to economical and thermal barrier properties, but caused various environmental pollution and high temperature at disposal. The problem is that harmful substances occur. Therefore, some paper-replaced products or products replaced with starch-based materials have been introduced, but the economical efficiency is lower than that of foamed styrene containers, and thermal barrier properties are poor. In addition, the method using the reed or sugar cane pulp is extruded in the state of paper dough with 90% of moisture, so the manufacturing process is complicated, the process of drying with moisture is long, energy-consuming and easy to deform the container.

Therefore, in order to solve the above problems, the present invention adds various additives by beating pulp obtained from reed or straw sugar cane, and then passes through a paper machine and continuously presses a paper roll in a semi-dry state (water content of 30% or less). It is a method of manufacturing a good physical property, high productivity, low cost, and is composed of natural materials, so that there is no elution of harmful substances, to obtain an environmentally friendly container that is completely decomposed in the soil.

1 is a schematic view of a disposable food container manufacturing system of the present invention

Disposable food container to achieve the above purpose is to decompose pulp, such as reed pulp, sugar cane pulp in water. At this time, it is possible to add materials having oil-proof, moisture-proof, and intelligence-strengthening properties, stir at an appropriate speed, and if necessary, materials for improving retention and defoaming in a paper machine. The white water passing through the above process passes through a paper machine and has a paper thickness of an appropriate thickness, passes through a dehydration roller, and the water content is controlled to 30% or less. If necessary, in order to improve the feel of the surface, it is possible to add a process of rolling with a pressure roller while applying a sealant, a desiccant, or the like. The paper roll having about 30% moisture obtained through the above process is press-molded into a desired shape by passing through a multi-stage press having an appropriately shaped container shape, and simultaneously dehydrated, dried and cooled. At this time, the paper separated from the shape of the container in the press is rolled again to the place where the pulp is dissolved, and the obtained container is shipped through a process such as inspection and sterilization.

Disposable food containers manufactured by the above method uses natural vegetable pulp, so it does not generate harmful substances to the human body in humidification, high temperature, and high temperature, short decomposition time in the ecosystem, and less use of heat accompanying the manufacturing process. It is a production method that can reduce manufacturing cost due to fewer defects and higher productivity compared to mold or injection method by passing multiple presses in a continuous roll form.

Claims (6)

Beat the pulp obtained from hay of reeds, add oil-proofing agent, desiccant, and intensifier, and stir, make paperboard roll with water content less than 30% by passing through paper machine, pass through multi-stage press, dehydration dry cooling Method and container for continuously preparing the container. The method according to claim 1, wherein the paperboard rolls use different kinds of paperboard rolls having different functions by changing the composition or constituting the density of the paperboard by using one paperboard or using two or more paperboards. The method of claim 1, by absorbing excess water by using a highly absorbent roller and mold made of foamed polyvinyl alcohol resin, etc., and vacuum suction and heating in the next press, the shape stability of the container is high and dried How can you save time and energy? The container according to claim 1 or 2, wherein the surface of the cardboard is coated with or added tocopherol having an antioxidant property to suppress the deterioration of food. The container according to claim 1 or 2, wherein some or all of the container has a moisture permeable waterproof property, so that the air gap of the paperboard can be adjusted to extend the food freshness maintenance and preservation period. The container according to claim 1 or 2, wherein a gas adsorbent material such as zeolite is added as a constituent material of the paperboard to inhale the gas generated by the respiration of the plant, thereby extending the shelf life of the plants.