IP Library › Granted Patent US 7,909,258
Granted Patent B2
US 7,909,258 · App. 12/306,801 · Granted Mar 22, 2011

RFID card using Korea paper and the manufacturing method thereof

Assignee: KBCTECH Co., Ltd.
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Quick Facts
Patent No.
US 7,909,258
App. No.
12/306,801
Granted
Mar 22, 2011
Kind
B2
Abstract

The present invention provides an RFID card using Korean paper and a method of manufacturing the same. The RFID card has a base sheet provided with a chip accommodation portion in which an RFID chip is accommodated, protective sheets stacked on top and bottom surfaces of the base sheet, and transparent film sheets stacked on outside surfaces of the protective sheets and provided with advertisements. The base sheet is made of strawboard that is manufactured by breaking the bark of a paper mulberry tree and straw into pieces and mixing them together. The protective sheet is made of oiled floor paper that is manufactured by coating Korean paper with perilla oil. The transparent film sheets are made of Chinese drawing paper that is manufactured using paper mulberry as raw material. The loop antenna is printed on the strawboard in conductive ink, and is connected to the RFID chip.

Claims (14)

1. A Radio Frequency Identification (RFID) card having a base sheet provided with a chip accommodation portion in which an RFID chip, configured to have a traffic card function, to store information, such as an amount of money, and to be connected to a loop antenna, is accommodated, protective sheets stacked on top and bottom surfaces of the base sheet to protect the RFID chip, and transparent film sheets stacked on outside surfaces of the protective sheets and provided with advertisements, wherein:

the base sheet is made of strawboard that is manufactured by breaking bark of a paper mulberry tree and straw into pieces and mixing them together;

the protective sheet is made of oiled floor paper that is manufactured by coating Korean paper, formed by breaking bark of paper mulberry into pieces and converting them into paper, with perilla oil;

the transparent film sheets are made of Chinese drawing paper that is manufactured using paper mulberry, on which screen printing can be performed, as raw material; and

the loop antenna is printed on the strawboard, that is, the base sheet, in conductive ink, and is connected to the RFID chip.

2. The RFID card as set forth in claim 1 , wherein the strawboard, the oiled floor paper, and the Chinese drawing paper have thicknesses ranging from 0.1 to 0.4 mm.

3. A method of manufacturing an RFID card using Korean paper, the RFID card having a base sheet provided with a chip accommodation portion, in which an RFID chip, configured to have a traffic card function, to store information, such as an amount of money, and to be connected to a loop antenna, is accommodated, protective sheets stacked on top and bottom surfaces of the base sheet to protect the RFID chip, and transparent film sheets stacked on outside surfaces of the protective sheets and provided with advertisements, comprising:

a Korean paper sheet provision step of cutting strawboard manufactured by breaking paper mulberry and straw into pieces and mixing them together, sheets of oiled floor paper manufactured by coating Korean paper, made using paper mulberry as raw material, with perilla oil, and sheets of Chinese drawing paper configured to allow screen printing to be performed thereon and made using wisteria as raw material to a length and width greater than those of a typical RFID card, and forming the chip accommodation portion in one side of the strawboard;

an advertisement printing step of, after the Korean paper sheet provision step, forming advertisements by printing the advertisements on one surface of each of the Chinese drawing paper sheets, used as the transparent film sheets, in oil ink;

an RFID tag installation step of, after the advertisement printing step, printing an loop antenna on a top surface of the strawboard, used as the base sheet, in conductive ink, inserting the RFID chip into the chip accommodation portion, and connecting the loop antenna with the RFID chip;

an adhesive application step of, after the RFID tag installation step, applying oil adhesive to both surfaces of the strawboard, both surfaces of the oiled floor paper sheets, and remaining surfaces of the Chinese drawing paper sheets, on which the advertisements are not printed;

a stacking and pressing step of, after the adhesive application step, sequentially stacking the oiled floor paper sheet, used as the protective sheet, and the Chinese drawing paper sheet, used as the transparent film sheet, on each of top and bottom surfaces of the strawboard, used as the base sheet, and pressing the sheets using a pressing body having a weight ranging from 0.3 to 1 Kg for 7-8 hours;

a cutting step of, after the stacking and pressing step, forming a standard-size Korean paper RFID card by cutting away unnecessary portions; and

a side waterproofing step of, after the cutting step, coating sides of the Korean paper RFID card with perilla oil and drying the Korean paper RFID card at normal temperature.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2012
From: KBTECH CO., LTD.
To: BIOSMART CO., LTD
Reel/Frame 029433/0857 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 29, 2008
From: KIM, WON-KI
To: KBCTECH CO., LTD.
Reel/Frame 022033/0135 →
Priority Claims (1)
KR 10-2006-0060964 · Jun 30, 2006 · national
Continuity (1)
Related Publication 20090242647A1 · Oct 1, 2009