Method for making disposable bowls and trays
First Claim
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1. A method of making a container for food which comprises:
- selecting natural herbaceous plants rich in fibers;
compressing the natural herbaceous plants;
cutting the compressed plants into fiber sections;
drying the fiber sections;
adding the dried fiber sections to a container of starch paste containing water;
mixing the dried fiber sections and starch paste to form mixed fiber and starch;
passing a shaping means comprised of a screen containing fine apertures through the container of the mixed fiber and starch to scoop the mixed fiber and starch onto the screen;
draining the water from the mixed fiber and starch through the fine apertures;
placing the shaping means with the mixed fiber and starch in a mold device comprising an upper mold member and a lower mold member;
compressing the mixed fiber and starch between the upper and lower mold members to form the food container;
separating the upper and lower mold members; and
retrieving the food container from the mold device.
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Abstract
A method is used for making disposable trays and bowls with organic materials or herbaceous plants that can be easily disintegrated and that has low economical value. The organic materials include straws, bagasses or forage grasses etc., which are cheap and can be easily obtained. The manufacturing costs of the trays and bowls are thus competitive in price and suitable for producing disposable trays and bowls for containing food. No waste water and gas will be produced such that the method meets the requirement of environmental protection.
28 Citations
6 Claims
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1. A method of making a container for food which comprises:
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selecting natural herbaceous plants rich in fibers; compressing the natural herbaceous plants; cutting the compressed plants into fiber sections; drying the fiber sections; adding the dried fiber sections to a container of starch paste containing water; mixing the dried fiber sections and starch paste to form mixed fiber and starch; passing a shaping means comprised of a screen containing fine apertures through the container of the mixed fiber and starch to scoop the mixed fiber and starch onto the screen; draining the water from the mixed fiber and starch through the fine apertures; placing the shaping means with the mixed fiber and starch in a mold device comprising an upper mold member and a lower mold member; compressing the mixed fiber and starch between the upper and lower mold members to form the food container; separating the upper and lower mold members; and retrieving the food container from the mold device. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification