Method, system, and apparatus for detaching and collecting an IC tag from a paper sheet to which it is attached

• US 7,730,600 B2
• Filed: 01/21/2004
• Issued: 06/08/2010
• Est. Priority Date: 01/22/2003
• Status: Expired due to Fees

• Current Assignee: Nobukatsu Nishida, Sagawa Printing Company Limited
• Original Assignee: Nobukatsu Nishida, Sagawa Printing Company Limited
• Inventors: Iwata, Hiroshi, Kawanami, Toshihiko, Nishida, Nobukatsu, Tajima, Toshimi
• Primary Examiner(s): Bryant; David P
• Assistant Examiner(s): Taousakis; Alexander P
• Application Number:
  US10/533,581
• Publication Number:
  US 20060125636A1
• Time in Patent Office: 2,330 Days
• Field of Search: 294/265, 294/264, 156/344, 156/395, 156/584, 156/247, 340/572.1, 399/1, 399/390
• US Class Current: 29/426.4
• CPC Class Codes: B08B 3/04 Cleaning involving contact with liquid
• CPC Class Codes: B08B 3/08 the liquid having chemical or dissolving effect substances used, see the relevant classes
• CPC Class Codes: B09B 5/00 Operations not covered by a single other subclass or by a single other group in this subclass
• CPC Class Codes: Y10T 156/1111 Using solvent during delaminating [e.g., water dissolving adhesive at bonding face during delamination, etc.]
• CPC Class Codes: Y10T 156/1168 Gripping and pulling work apart during delaminating
• CPC Class Codes: Y10T 156/1928 Differential fluid pressure delaminating means
• CPC Class Codes: Y10T 29/49821 by altering or destroying work part or connector
• CPC Class Codes: Y10T 29/49822 by applying force

Abstract

In order to efficiently detach and collect an IC tag (1) from a paper sheet (2) to which the IC tag (1) is attached, the IC tag (1) is detached from the paper sheet (2) by applying external force to the adhesive surface between the paper sheet (2) and the IC tag (1) (detachment step). Next, the detached IC tag (1) is fractionated from other substances (fractionation step).

Claims

1. A system for detaching and collecting an IC tag from a paper sheet to which said IC tag is attached, comprising:

a unit for swelling said paper sheet by soaking said paper sheet in a swelling liquid in which paper and/or an adhesive is soluble;

a detacher for detaching said IC tag from said paper sheet by applying an agitating stream of the liquid to an adhesive surface between the swollen paper sheet and said IC tag in the liquid, to agitate and separate said IC tag from said paper sheet, and to decompose the paper sheet into paper components; and

a fractionator for fractionating the detached IC tag from the paper components from said detacher, wherein

said swelling unit pours the liquid, in which said paper sheet and said IC tag are soaked, into said detacher.

2. The system as set for in claim 1, further comprising:

a cleaner for said IC tag detached from said paper sheet to remove paper and/or an adhesive adhering to said IC tag.

3. The system as set for in claim 1, wherein the detacher immerses said paper sheet and said IC tag in the water while said paper sheet and said IC tag are exposed to agitation by the agitating stream of water.

4. The system as set forth in claim 3, wherein the agitating stream of water comprises a jet of bubble filled water which decompose the paper sheet into the paper components.

5. The apparatus as set forth in claim 1, wherein the fractionator comprises a liquid filled vessel which is separate from the detacher and arranged to receive the IC tag and the paper components from the detacher, the fractionator having an agitation unit which agitates liquid in the liquid filled vessel and which separates the IC tag from the paper components and causes the paper components to collect near an upper surface of the liquid.

6. The apparatus as set forth in claim 1, wherein the fractionator comprises a liquid filled vessel in which the detacher is disposed, the detacher comprising a screen which retains the IC tag and which allows the paper components to pass through the screen into the vessel.

7. The system as set forth in claim 1, wherein the unit for swelling the paper which is filled with a swelling liquid, comprises a sluiceway-like arrangement along which the paper sheet flows, and wherein the detacher comprises a downstream portion of the sluiceway-like arrangement which is equipped with an agitation unit to agitate the liquid, separate said IC tag from said paper sheet, and decompose the paper sheet into the paper components.