Bio-degradable cup and method for making the same

Inactive Publication Date: 2009-09-03
CHANG HSI CHING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The primary object of the present invention is to provid

Problems solved by technology

The inner cup may also become soft when hot food is received in the inner cup and this results health concerns.

Method used

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  • Bio-degradable cup and method for making the same
  • Bio-degradable cup and method for making the same
  • Bio-degradable cup and method for making the same

Examples

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Embodiment Construction

[0020]Referring to FIG. 1, the method for making the bio-degradable cup of the present invention comprises a step of preparing a paperboard with bio-degradable film 11 coated on at least inner or outer surface thereof, the paperboard then being cut, folded and heat-pressed to be a paper cup 10. The bio-degradable film 11 is made by Plolylactic Acid (PLA), Bio-Polymers, bio-degradable plastic or any plastic material meets requirements ISO14855 and suitable to be composted.

[0021]A step of preparing a foam board 200 made by bio-degradable plastic or non-bio-degradable plastic which is treated by way of super-critical carbon dioxide extrusion. The foam board 200 is a microfoam and is applied with a printing process which can be water relief printing, intaglio printing, lithography, screen printing or rotary screen. Desired patterns or characters can be printed to the outside of the foam board 200 and the foam board 200 is cut into pieces and each piece is made to be a foam cup 20 via ne...

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Abstract

A bio-degradable cup includes a foam cup and a paper cup which is securely received in the foam cup. The paper cup includes a bio-degradable film coated to an inside thereof. The paper cup is formed by cutting a paperboard and folded to be the paper cup. The foam cup is made by preparing a foam board made by bio-degradable plastic which is treated by way of super-critical carbon dioxide extrusion, the foam board is cut into pieces and each piece is made to be the foam cup. The foam cup is applied with a heat treatment to obtain a sticky inner surface to which the paper cup is securely connected. A lip is formed around an outer top edge of the foam cup.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a bio-degradable cup and a method for making the same.BACKGROUND OF THE INVENTION[0002]A conventional biodegradable cup generally includes an inner cup which is used to receive food and does not deform, and a paper outer paper cup in which the inner cup is received. The inner cup is made by bio-degradable material and is made by way of super-critical carbon dioxide extrusion. The paper outer cup includes printed material on outside thereof.[0003]However, the inner cup and the paper outer cup are simply engaged with each other so that the inner cup may shift relative to the paper outer cup. The inner cup may also become soft when hot food is received in the inner cup and this results health concerns.[0004]The present invention intends to provide a bio-degradable cup which includes a paper cup connected to inside of a foam cup which is made by bio-degradable material and the paper cup is securely bounded to inside of the foa...

Claims

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Application Information

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IPC IPC(8): B65D3/22B65D81/38
CPCB31B1/28B31B1/72B31B17/00B31B2201/2604B31B2201/6073B65D81/3865B31B2217/062B31B2217/082B31B2217/108B31D1/005B65D65/466B31B2217/003B31B50/28B31B50/72B31B50/81B31B2105/00B31B2110/10B31B2120/002B31B2120/501B31B2105/0022Y02W90/10
Inventor CHANG, HSI-CHING
Owner CHANG HSI CHING
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