JP4448382B2 - IC tag holding card type cartridge - Google Patents

Description

  The present invention relates to a card-type cartridge that holds an IC tag other than the card size in a card shape and enables printing / erasing with a visible image rewriting device for cards.

  In recent years, a non-contact IC card having a reversible recording layer capable of displaying or erasing a visible image reversibly depending on temperature (hereinafter also referred to as rewritable) has been proposed (see, for example, Patent Document 1). ).

  A non-contact IC card processing device for displaying or erasing a visible image of such a non-contact IC card has also been proposed (for example, see Patent Document 2).

  By the way, the present situation is that IC tags of various arbitrary shapes are generally used instead of those of standardized sizes and shapes like cards.

  However, when trying to provide a rewritable function to a tag of such arbitrary shape, it is inefficient to arrange a rewriting device for rewriting a visible image for each shape of the arbitrary tag, which is restricted by the rewriting device. In many cases, the shape must be selected.

  Therefore, it is desirable to mount an IC tag on which a reversible recording medium is stacked on a card cartridge of a prescribed size so that an existing card rewriting device can be used.

As a method of fixing the IC tag to the card type cartridge, a method of fitting can be considered. However, in this method, there is a problem in fitting accuracy of the IC tag and the cartridge, and a durability surface such that the tab for fitting is easily broken. I have anxiety. In addition, there is a problem that the IC tag may come off and become clogged in the printer, or the cost may increase due to the necessity of fine processing. Furthermore, there is a risk of damaging the IC tag itself when it is removed.
Japanese Patent Laid-Open No. 11-245566 JP-A-11-250199

  The present invention is intended to solve the above-described problems. That is, the object of the present invention is to enable rewriting of a visible image on an IC tag having an arbitrary shape having a rewritable function using a general-purpose card-type rewriting device. The IC tag can easily hold and remove the IC tag without contaminating the IC tag surface and without damaging the IC tag, and has excellent durability, and can be used repeatedly for a long time. An object is to provide an IC tag holding card type cartridge capable of maintaining the effect.

  The IC tag holding card type cartridge of the present invention holds an IC tag having a reversible recording layer on at least one surface capable of displaying or erasing a visible image reversibly depending on temperature in a card shape. IC tag holding card type cartridge, wherein the IC tag holding card type cartridge includes an outer frame member having an IC tag holding opening, a rubber-like sheet for fixing the bottom surface of the IC tag, and rubber. The rubber-like sheet has adhesiveness, and was measured under conditions of a frequency of 10 Hz and a temperature of 20 ° C. based on a dynamic viscoelasticity measurement method. The shear modulus (G ′) is 0.03 to 10 MPa.

  The rubber-like sheet may be natural rubber, butadiene rubber, styrene-butadiene copolymer rubber, isoprene rubber, chloroprene rubber, acrylic rubber, silicone rubber, fluorine rubber, polyurethane rubber, epichlorohydrin rubber, nitrile rubber, and thermoplastic elastomer. The main component can be at least one selected from the group consisting of:

  Since the IC tag holding card type cartridge of the present invention has a specific rubber-like sheet, the IC tag can be firmly fixed to the surface of the cartridge by the adhesive force of the rubber-like sheet, and the cartridge is curved, If a force greater than the adhesive strength of this rubbery sheet is applied, it can be easily peeled off. Therefore, the IC tag itself can be removed without forcibly deforming at the time of removal, and the damage of the antenna and the contact accompanying the deformation of the IC tag can be avoided.

  Moreover, since the physical property value of the rubber-like sheet is defined within a specific range, no fouling such as adhesive residue occurs after the IC tag is peeled off. Therefore, a new IC tag can be pasted at the peeled position, and the adherend surface is not soiled and is smooth, so that a sufficient holding and fixing force can be exhibited.

  Furthermore, by defining the physical property values of the rubbery sheet within a specific range, the adhesion and contact with the thermal head and the erasing head will be improved when rewriting the visible image on the surface of the IC tag. And rewriting without erasure defects becomes possible.

  Embodiments of the present invention will be described below, but the scope of the present invention is not limited to the embodiments described below.

  In the present invention, an IC tag holding card type cartridge is a cartridge that can hold an IC tag in a detachable manner so that an IC tag of an arbitrary size can be applied to an existing card type rewriting device. The shape of the outer frame is the shape of a card.

  There are standard sizes such as a JIS size (85.6 mm × 54.0 mm) and a cybernet size (85.0 mm × 57.3 mm), but the JIS size is generally used as a rewritable rewriting device. Therefore, the size of the IC tag holding card type cartridge may be adjusted to the target card size.

  The thickness of the IC tag holding card type cartridge is preferably matched to the thickness of the target card, and depending on the allowable range of the rewritable rewriting device, generally a thickness of 100 to 1500 μm can be used. In particular, a card type cartridge for holding an IC tag having a thickness of about 760 μm in accordance with the versatility of the card is highly versatile.

  As long as the IC tag is smaller than the card size, an IC tag of any size can be used.

  For example, an IC tag is formed by appropriately combining an oversheet having a reversible recording layer, an inlet sheet mounted with an antenna coil and an IC chip, a white core sheet, etc., and heat-sealing between the sheets with a hot press, It can be produced by cutting into a tag shape with a punching blade, and in some cases with holes or notches.

  FIG. 1 is a diagram showing a layer structure of an IC tag holding card type cartridge according to an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The outer frame member 1 for holding the IC tag in the card shape of the IC tag holding card type cartridge according to the present invention has an intended card size and an IC tag holding opening for mounting the IC tag. Anything is acceptable as long as it has two.

  For example, it can be manufactured using a material similar to that of a thick card or the above IC tag. That is, it can be obtained by appropriately combining oversheets, white core sheets and the like, stacking them to a desired thickness, thermally fusing the sheets with a hot press, and then cutting them into a card shape with a punching blade.

  The IC tag holding opening 2 may be punched at the same time as the card-like punching or may be formed by punching separately.

  Further, the rubber-like sheet 3 for fixing the bottom surface of the IC tag has a shear elastic modulus (G ′) of 0 based on a dynamic viscoelasticity measurement method when measured at a frequency of 10 Hz and a temperature of 20 ° C. 0.03 to 10 MPa is required, and 0.3 to 3.2 MPa is particularly preferable. In the present invention, unless otherwise specified, the shear modulus is measured under these conditions. If the shear modulus (G ′) is 0.03 MPa or more, the rubber-like sheet will not be deformed even if it is used repeatedly. Further, when the shear modulus (G ′) is 10 MPa or less, the adhesiveness is exerted predominantly, and the holding power of the IC tag does not decrease even when used repeatedly.

  A rubber-like sheet having a shear modulus of elasticity within the above range is moderately flexible in an environment where the display of an IC tag is normally rewritten, and has a stable adhesive effect and ease of removal, and good printing / erasing. It can have rewriteability.

  The rubber-like sheet 3 is preferably formed in a sheet shape and can be bent freely. The rubber-like sheet 3 is, for example, natural rubber, butadiene rubber, styrene-butadiene copolymer, isoprene rubber, chloroprene rubber, acrylic rubber, silicone rubber, fluorine rubber, polyurethane rubber, epichlorohydrin rubber, nitrile rubber or other synthetic rubber, polyolefin Mainly composed of thermoplastic elastomers such as polyesters, polyesters, polyurethanes, polyamides and fluorines.

  Considering heat resistance and cold resistance in particular, it is preferable to use, for example, a rubbery sheet mainly composed of silicone rubber. As a rubber-like sheet | seat which has silicone rubber as a main component, the brand name "Kizuki" by Mitsubishi Resin Co., Ltd. can be obtained commercially, for example.

  The thickness of the rubber-like sheet 3 is preferably 10 μm or more, particularly preferably 30 μm or more, and more preferably 50 μm or more in terms of the effect of improving the printability and erasability by the thermal head or erasing head by providing cushioning properties. preferable. Moreover, from the point of restrictions of the rewriting apparatus by total thickness, 500 micrometers or less are preferable, especially 400 micrometers or less are preferable, and also 300 micrometers or less are preferable.

  Although the base material 4 is not specifically limited, the sheet | seat which has a polyethylene terephthalate (PET), a polyethylene naphthalate (PEN), etc. as a main component can be used from the point of the lamination | stacking property of a rubber-like sheet | seat. In view of durability, transportability and the like, biaxially stretched polyethylene terephthalate and polyethylene naphthalate are more preferable.

  The thickness of the base material 4 is preferably 25 μm or more from the viewpoint of durability and the like, particularly preferably 50 μm or more, and more preferably 100 μm or more. Moreover, from the point of restrictions of the rewriting apparatus by total thickness, 250 micrometers or less are preferable and especially 200 micrometers or less are preferable.

  EXAMPLES The present invention will be described more specifically with reference to the following examples. However, the present invention is not limited to these examples, and various applications are possible without departing from the technical scope of the present invention.

Example 1
<Production of IC tag>
A rewritable sheet (trade name “RECO-View”, manufactured by Ricoh Co., Ltd.) in which a leuco dye-based reversible recording layer was laminated on a polyester-based transparent oversheet having a thickness of 50 μm was prepared.
In addition, an inlet sheet in which an antenna coil and an IC chip were mounted on a white PETG sheet having a thickness of 150 μm was prepared.
Then, the rewritable sheet / 150 μm thick PETG white core sheet / the inlet sheet / 150 μm thick PETG white core sheet are stacked in this order, pressing temperature: 150 ° C., sheet surface pressure: 20 kgf / cm ² , heating time: 10 minutes. An IC tag sheet was prepared by performing a heating press, and then cut with a punching blade to obtain an IC tag.
The size of the IC tag was 30 mm × 28 mm and the shape of the corner R3, and the total thickness of the IC tag was 520 μm.

<Preparation of outer frame member having opening for holding IC tag>
50 μm thick polyester-based transparent oversheet / 150 μm thick PETG white core sheet / 150 μm thick PETG white core sheet / 150 μm thick PETG white core sheet in this order, press temperature: 150 ° C., sheet surface pressure: 20 kgf / cm ² , Heating time: A sheet for outer frame member was produced by heating pressing for 10 minutes, and then punched with a punching blade to produce an IC tag holding opening.
The size of the opening for holding the IC tag was 31 mm × 29 mm, the shape of the corner R3, and the total thickness of the sheet was 500 μm.

<Base material and rubber-like sheet>
A 100 μm-thick polyethylene terephthalate base material prepared by laminating a 100 μm-thick silicone rubber sheet as a rubber-like sheet (trade name “Saiju” manufactured by Mitsubishi Plastics, Inc.) was prepared. The used silicone rubber sheet had a shear modulus (G ′) of 0.03 MPa measured under conditions of a frequency of 10 Hz and a temperature of 20 ° C. based on a dynamic viscoelasticity measurement method.

<Production of IC tag holding card type cartridge>
The outer frame member sheet having the IC tag holding opening and the rubber sheet laminated on the base material are closely laminated with the rubber sheet as the inner surface, and the outer frame member has a total thickness of 700 μm. A sheet made of / rubbery sheet / substrate was obtained. The outer shape was cut into a JIS size card size with a punching blade to obtain a card type cartridge for holding an IC tag.
A rubber-like sheet is exposed at a portion corresponding to the IC tag holding opening, and the IC tag can be easily attached and detached.

<Evaluation>
(1) Evaluation of read / write performance of IC chip An IC tag was attached to an IC tag holding opening of an IC tag holding card type cartridge, and a test pattern was printed using a dedicated thermal head printer corresponding to the card size. Thereafter, the IC tag was once peeled off and then affixed to the cartridge again, and the print contents were rewritten using the thermal head printer. After repeating this operation 300 times, the IC chip was read and written. As a result, the IC chip was not damaged, and repeated read / write was possible.

(2) Evaluation of printing performance Each time the contents of printing were rewritten, the surface of the IC tag was visually observed and confirmed. The surface of the IC tag was not soiled after repeated 300 times, and repeated printing / erasing was possible.

(3) IC tag retention and detachability Each time we confirmed the retention and detachability of the IC tag, but the IC tag did not come off during rewriting or could not be removed. It was.

(Example 2)
An IC tag holding card type cartridge was produced in the same manner as in Example 1 except that the silicone rubber sheet was changed to a silicone rubber sheet having a shear modulus (G ′) of 0.3 MPa.
The obtained IC tag holding card type cartridge was evaluated in the same manner as in Example 1. As a result, the IC chip was not damaged, and repeated read / write was possible. Further, the surface of the IC tag was not dirty, and repeated printing / erasing was possible. Furthermore, there was no problem in repeated holding and removal.

(Example 3)
An IC tag holding card type cartridge was produced in the same manner as in Example 1 except that the silicone rubber sheet was changed to a silicone rubber sheet having a shear modulus (G ′) of 0.6 MPa.
The obtained IC tag holding card type cartridge was evaluated in the same manner as in Example 1. As a result, the IC chip was not damaged, and repeated read / write was possible. Further, the surface of the IC tag was not dirty, and repeated printing / erasing was possible. Furthermore, there was no problem in repeated holding and removal.

Example 4
A card type cartridge for holding an IC tag was produced in the same manner as in Example 1 except that the silicone rubber sheet was changed to a silicone rubber sheet having a shear elastic modulus (G ′) of 1.6 MPa.
The obtained IC tag holding card type cartridge was evaluated in the same manner as in Example 1. As a result, the IC chip was not damaged, and repeated read / write was possible. Further, the surface of the IC tag was not dirty, and repeated printing / erasing was possible. Furthermore, there was no problem in repeated holding and removal.

(Example 5)
An IC tag holding card type cartridge was produced in the same manner as in Example 1, except that the silicone rubber sheet was changed to a silicone rubber sheet having a shear modulus (G ′) of 3.2 MPa.
The obtained IC tag holding card type cartridge was evaluated in the same manner as in Example 1. As a result, the IC chip was not damaged, and repeated read / write was possible. Further, the surface of the IC tag was not dirty, and repeated printing / erasing was possible. Furthermore, there was no problem in repeated holding and removal.

(Example 6)
An IC tag holding card type cartridge was produced in the same manner as in Example 1 except that the silicone rubber sheet in Example 1 was changed to a silicone rubber sheet having a shear modulus (G ′) of 10 MPa.
The obtained IC tag holding card type cartridge was evaluated in the same manner as in Example 1. As a result, the IC chip was not damaged, and repeated read / write was possible. Further, the surface of the IC tag was not dirty, and repeated printing / erasing was possible. Furthermore, there was no problem in repeated holding and removal.

(Comparative Example 1)
An IC tag holding card type cartridge was produced in the same manner as in Example 1 except that the silicone rubber sheet was changed to a silicone rubber sheet having a shear modulus (G ′) of 0.02 MPa.
The obtained IC tag holding card type cartridge was evaluated in the same manner as in Example 1. However, the contents of the print were rewritten using a dedicated thermal head printer and the IC tag was removed, but the silicone rubber was deformed and could not be removed.
After that, I tried to reuse it, but it didn't print well.

(Comparative Example 2)
A card type cartridge for holding an IC tag was manufactured in the same manner as in Example 1 except that the silicone rubber sheet was changed to a silicone rubber sheet having a shear modulus (G ′) of 20 MPa.
I attached the IC tag to the obtained IC tag holding card type cartridge, printed it with a dedicated thermal head printer, peeled it off, and tried to attach the next IC tag, but I could not attach it It was.

  It should be noted that the IC tag holding card type cartridges of Examples 1 to 6 did not deform the silicone rubber even after repeated use, and always ensured good adhesiveness. Among them, the IC tag holding card type cartridges of Examples 2 to 5 were excellent in the quality of repeated printing and erasing, the repeated holding property and the detachability.

It is a figure which shows the layer structure of the card type cartridge for IC tag holding | maintenance which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer frame member 2 IC tag holding opening 3 Rubber sheet 4 Base material

Claims (2)

An IC tag holding card type cartridge for holding an IC tag having a reversible recording layer on at least one surface capable of reversibly displaying or erasing a visible image according to temperature in a card shape, The IC tag holding card type cartridge includes an outer frame member having an IC tag holding opening, a rubber sheet for fixing the bottom surface of the IC tag, and a base material positioned on the outer surface of the rubber sheet. Furthermore, the rubber-like sheet has adhesiveness, and based on a dynamic viscoelasticity measurement method, the shear elastic modulus (G ′) measured under conditions of a frequency of 10 Hz and a temperature of 20 ° C. is 0.03. A card type cartridge for holding an IC tag, characterized in that the pressure is 10 MPa or more. The rubber-like sheet is made of natural rubber, butadiene rubber, styrene-butadiene copolymer rubber, isoprene rubber, chloroprene rubber, acrylic rubber, silicone rubber, fluorine rubber, polyurethane rubber, epichlorohydrin rubber, nitrile rubber, and thermoplastic elastomer. 2. The IC tag holding card type cartridge according to claim 1, wherein at least one selected from the group is a main component.

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