JP2004284675A - Top cover with completion display function using water absorption discoloration paper for cup shaped instant food container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of missing proper cooking time because it is troublesome to time a finish time as to an instant food in a cup shaped container. <P>SOLUTION: A discoloration paper is used for the cover of a container. A hole only for indication is formed in the area 22 before eating with a chopstick, etc. Then the cover is opened from an area 24 to an area 23 for pouring hot water in the container. Then the paper absorbing moisture changes its color gradually from the center by the capillary phenomenon. When a ready-to-eat line 21 is discolored, it is an indication that food inside is ready to be eaten. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cup-type instant food container lid using water-absorbing discolored paper.
[0002]
[Problems to be solved by the invention]
When eating and drinking cup-shaped instant foods, which are often eaten and consumed outdoors, it is troublesome to measure the time with a clock, and you just miss it.
[0003]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, it is possible to eat and drink at the time of eating without worrying about time by notifying the time of eating by displaying using the upper lid according to the present invention.
[0004]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, taking an instant noodle as an example.
In the instant noodles as shown in FIG. 1, the upper lid 2 according to the present invention has a mark 22 on the top printing portion where a hole is made with chopsticks or the like. , 32 of the water-absorbing discolored paper can absorb water.
Thereafter, the lid is opened from 24 to 23, and when hot water is poured, steam gradually absorbs water from the previously opened hole by capillary action and discolors radially.
When the discolored area reaches 21 lines, it indicates that the process is completed.
[0005]
【The invention's effect】
By using the upper lid of the present invention, instant food can be eaten and consumed at any place without worrying about time.
The upper lid of the present invention has a simple structure in which the printing paper of the existing upper lid is replaced with a water-absorbing discolored paper, so that a convenient one can be provided at low cost without changing the existing manufacturing method.
[0007]
[Brief description of the drawings]
FIG. 1 is a perspective view of an instant noodle container using the upper lid of the present invention. FIG. 2 is a top view of the upper lid of the present invention. FIG. 3 is a cross-sectional view of the upper lid of the present invention.
1 Cup container 2 Upper lid 21 of the present invention Finished display line 22 Display dedicated hole opening mark 23 Opening mark at the time of pouring 24 Opening mark at the time of pouring 31 Top coat 32 Water absorbing discolored paper 33 Aluminum vapor deposition 34 Cup bonding paste

Claims (3)

A display method using water-absorptive discolored paper as a method of indicating the elapsed time of ready-to-eat food that is poured and dipped in hot water a few minutes later, that is, the completion time. 2. The display method according to claim 1, wherein the upper and lower sides of the water-absorbing discolored paper are laminated, so that the laminating hole is opened at the time of eating and drinking without discoloration within the expiration date, so that the steam of hot water poured is poured. The container top lid characterized in that the color gradually changes due to capillary action and the elapsed time is displayed. The upper lid of the container according to claim 2, wherein a hole dedicated to display is made in the lid before eating and drinking, followed by pouring hot water to absorb water by steam as usual, gradually discoloring radially from the previously opened hole, so that it can be eaten. The top lid of the container that displays the label.

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