JP2007331146A - Method and apparatus for manufacturing laminated product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminated product such as an IC tag or the like, which can sufficiently obtain smoothness by making a flowable liquid and a solid part compatible in a sufficiently contact state when the IC tag is manufactured as the laminated product by putting the solid part in the flowable liquid such as an adhesive or the like to hold the same between substrate sheets to smooth and solidify the solid part, and is constituted so as to perfectly eliminate trouble that surface printing is impossible or the solid part itself is peeled. <P>SOLUTION: In the manufacturing method of the laminated product, a laminate in a state that the solid part and the layer of the flowable liquid 4 are interposed between two substrate sheets is held between a base stand 41 and a roll 31 by bringing the sheet surface of one substrate sheet 1 into contact with the surface of the base stand 41 to place the same on the base stand 41 and bringing the roll 31, which is formed by concentrically joining a hard part and soft part in an axial direction, into contact with the surface of the other substrate sheet 2 in a rotatable manner. This laminate is smoothly solidified under pressure by moving either one of the roll and the base stand 41 while holding and pressurizing by the base stand 41 and the roll. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a manufacturing method and a manufacturing apparatus for manufacturing a smooth laminated product by enclosing and solidifying a solid part and a fluid liquid layer in a base sheet.

  In recent years, cards, tags, and labels have been used as identification means in a wide range of society such as distribution, life-related fields, and business fields. These types are widespread, ranging from simple ones with printing or writing on the surface to complex ones with IC inlets inside. In any case, the cards, tags, and labels must have a smooth surface, easy writing of characters, good durability, easy manufacture, and good appearance.

As a manufacturing means for that purpose, as shown in Patent Document 1, a method of embedding solid components such as an IC inlet having a protruding portion such as an IC chip in a fluid such as an adhesive between the base sheet on the front and back sides is adopted. . This is achieved by using a fluid liquid of thermosetting, moisture-curing, and UV-curing reactive adhesives, while maintaining the functions such as strength after card processing (curing) and fluidity when embedding IC modules. Since it is possible to raise the temperature at low temperature, it is said to be superior in preventing damage to the protruding portion of the IC chip due to pressure and improving smoothness.
Japanese Patent Laid-Open No. 11-139048

  When a solid part such as an IC inlet is placed in a fluid such as an adhesive and smoothed and solidified, the fluid liquid having a high viscosity such as an adhesive and the solid part such as an IC inlet may be intimately adhered to each other. In some cases, it may be difficult, and the part that does not adhere to the surface is lifted up, resulting in a state in which sufficient smoothness cannot be obtained, and problems such as inability to print on the surface or peeling off of the solid part itself occur. In addition, since the material loss increases, there is a problem that the processing cost increases. In particular, there are protrusions such as an IC chip among solid parts, and the above-mentioned trouble becomes conspicuous as the height increases.

  It is an object of the present invention to provide a manufacturing method and apparatus capable of solving such troubles and producing a stable, smooth and durable laminated product such as tags, labels and cards.

This object is achieved by any of the following technical means 1 to 4.
1. A laminate in which a solid part and a fluid liquid layer are interposed between two base sheets is placed with the sheet surface of one base sheet contacting the base, and the other A roll having a hard body portion and a soft body portion concentrically coupled in the axial direction is rotatably contacted with the sheet surface of the base sheet, and the laminate is sandwiched and pressed between the base and the roll. However, a method for producing a laminated product is characterized in that, by moving either the roll or the base, the laminated body is solidified smoothly to produce a laminated product.
2. The length of the soft body portion in the direction of the roll axis is longer than the length of the protruding portion of the solid part in the region pressed by the soft body portion in the direction parallel to the roll axis, and the diameter of the soft body portion is 2. The method for producing a laminated product according to item 1, wherein the diameter is larger than the diameter of the body part.
3. A base on which a laminate in which a solid part and a fluid liquid layer are interposed between two base sheets is placed in contact with the sheet surface of one base sheet, and the other base A roll in which a hard body portion and a soft body portion are concentrically coupled in an axial direction with the sheet surface of the sheet being rotatable, the roll and the roll while holding and pressing the laminate with the base and the roll An apparatus for manufacturing a laminated product, comprising: a pressing unit that moves any of the bases; and a moving unit, wherein the laminated body is solidified smoothly to produce a laminated product.
4). The length of the soft body portion in the direction of the roll axis is longer than the length of the protruding portion of the solid part in the region pressed by the soft body portion in the direction parallel to the roll axis, and the diameter of the soft body portion is 4. The apparatus for manufacturing a laminated product according to item 3, wherein the diameter is larger than the diameter of the body part.

  The laminated product of the present invention makes the adhesion of the protruding part of the solid part constituting the same and the other parts uniform, and in particular, the adhesion around the solid part is extremely stable and improved. It also improves the nature As a result, the smoothness after processing is increased, so that the occurrence of troubles can be suppressed, and the quality and processing cost can be reduced.

  Hereinafter, an embodiment of a manufacturing method of an IC tag which is an example of a laminated product manufactured according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to this embodiment.

  FIG. 1 is a plan view of an IC tag as a laminated product, and FIG. 2 is a cross-sectional view of the IC tag as a laminated product.

  In the IC tag S, an IC inlet 3 which is a solid part including an IC chip 3a and an antenna 3b as protrusions is interposed between the first base sheet 1 and the second base sheet 2, and is bonded as a fluid. It is manufactured by bonding with the agent 4.

  The first base sheet 1 has a total thickness of, for example, 50 to 250 μm using PET as a support, and is provided with an image receiving layer on the card surface side. For example, for the purpose of preventing counterfeiting, watermark printing, holograms, strips, etc. Printing for preventing counterfeiting such as forgery or regular printing of frames, characters, symbols and the like necessary for IC tags is performed.

  The inner surface of the first base sheet 1 in the laminate 10 is subjected to an easy adhesion treatment for improving the coating property of the hot melt adhesive as the adhesive 4 which is a fluid, and antistatic layers are provided on both sides. Is provided. The form of the first base sheet 1 is a sheet shape, and in the figure, the size is the size of the IC tag S that is a single finished laminated product, but the size may be such that a plurality of IC tags S can be taken. .

  The second base sheet 2 in the laminate 10 has a total thickness of, for example, 50 to 250 μm using PET as a support, a writing layer is provided on the surface side of the second base sheet 2, and regular printing is performed after pasting Usually not done to do. Similar to the first base sheet 1, the inner surface of the IC tag is subjected to an easy adhesion treatment for improving the coating property of the hot melt adhesive as the adhesive 4 that is a fluid, and the antistatic layer is formed on both sides. Is provided. The form of the second base sheet 2 is also sheet-like, and in the figure, it is the size of a single finished IC tag. However, the size may be such that a plurality of IC tags can be taken.

  It is preferable to select a material that is small in thermal shrinkage and its variation for both the base sheet 1 and the second base sheet 2, and printing is performed with a standard print size that allows for thermal shrinkage. In addition, it is preferable that the two base sheets have a thickness and a configuration in which the heat shrinkage rate is the same in consideration of the difference in heat history in the manufacturing process so that curling or the like due to the difference in heat shrinkage rate does not occur. .

  The IC inlet 3 as a solid part is composed of parts including an IC chip 3a and an antenna 3c which are protrusions, and as shown in FIG. 2, both sides of the IC chip 3a and the wound antenna 3c are inlet films such as a nonwoven fabric. It is also possible to adopt a solid part that is pasted in 3b, or a solid part that has been previously sealed with resin for the entire IC inlet 3 of the IC chip 3a or the antenna 3c.

  The adhesive 4 which is a fluid liquid layer is, for example, a hot melt adhesive, and a reactive hot melt adhesive is particularly preferable. Reactive hot melt adhesive is a type of adhesive that melts and bonds the resin, then absorbs moisture and cures the resin. Later, the softening temperature increases, so it has excellent durability and is suitable for coating at low temperatures. With normal hot melt adhesives, the coating temperature is the same as the softening temperature of the resin, so the heat resistance does not exceed the coating temperature. Therefore, when high heat resistance is required, a high coating temperature is required. Become. On the other hand, since the reactive hot melt adhesive is cured after coating, the heat-resistant temperature becomes several tens of degrees Celsius higher than the coating temperature. Therefore, if the surface of the image receiving layer is a material that is easily damaged at high temperatures, the damage is reduced. be able to.

  FIG. 4 (a) is a side sectional view, FIG. 4 (b) is a partial top view, and FIG. 5 shows an embodiment of an IC tag S manufacturing method and manufacturing apparatus 100 as an example of such a laminated product in the present invention. It demonstrates using the partial front view of.

  In manufacturing the IC tag S as an example of the laminated product, first, as shown in the schematic diagram of FIG. 3, the IC inlet 3 as a solid part is placed on the base sheet 1 in the adhesive 4 as the fluid. The laminated body 10 is embedded and further covered with the base sheet 2 and the maximum total thickness B is assembled. The assembly process so far employs several means that are generally known, but will not be described here.

  The feature of the manufacturing method and the manufacturing apparatus 100 of the laminated product in the present invention is that an IC inlet as a solid part is formed by using an adhesive as a fluid sandwiched between two base sheets while pressurizing such a laminated body 10. 3 is a method and an apparatus for producing a laminated product having good smoothness by solidifying while uniformly adhering to every corner, and the apparatus is configured as shown in FIGS.

  That is, a base 41 that is movable by a moving means (not shown) equipped with a linear feed mechanism is provided, and when the stacked body 10 is placed on the placement surface 42 of the base 41. A detent 43 is provided for positioning, and a roll 31 in which a soft body portion 32 and a hard body portion 33 are concentrically coupled to the upper portion of the mounting surface 42 of the base 41. Is arranged with its axis directed in a direction perpendicular to the moving direction of the base 41.

  A roll holder 34 that supports the support shafts 31a and 31b at both ends of the roll 31 and has a slide bar 34a at the center is provided. The slide bar 34 a of the roll holder 34 is slidably fitted to the elevating guide 35 and is urged downward by a spring 36 provided between the pressure adjusting nut 34 b and the end of the elevating guide 35. By adjusting the rotation of the preparation nut 34b, the roll 31 can pressurize the upper surface of the laminate 10 with a predetermined set pressure.

  Further, when the lift guide 35 rotates a knob 37b of the pinion 37a of the position adjustment frame 37, the lift guide 35 provided with a rack 35a meshing with it moves up and down to move the mounting surface 42 of the base 41 and the roll. The distance A between the 31 roll surfaces can be adjusted to an appropriate setting value and clamped.

  Thus, the pressing means and its adjusting means are provided.

  The gap dimension A between the mounting surface 42 of the base 41 and the roll surface of the hard part 33 of the roll 31 can be adjusted to a predetermined set dimension that is slightly smaller than the finished thickness C of the laminate 10. In addition, the roller 31 can be pressurized to a predetermined set pressure.

  In FIG. 4A, the laminate 10 is placed with the sheet surface of the base sheet 1 contacting the placement surface 42 of the base 41, and simple positioning is performed by the claws 43. Then, the roll 31 is pressed against the sheet surface of the base sheet 2 and the base 41 is moved at a constant speed in the direction of the arrow perpendicular to the axis of the roll 31 to press the laminated body 10 and the IC tag S as a laminated product. Is manufactured.

  In the present invention, as shown in the side sectional view of FIG. 5, the roll 31 has a structure in which the roll portion in the region that presses the IC chip 3 a that is the protruding portion of the IC inlet 3 that is a solid part is the soft body portion 32. The portion of the roll in the other region is the hard part 33. Further, the length of the soft body portion 32 in the roll axis direction is longer than the length of the protruding portion 3a in the solid part in the region pressed by the soft body portion 32 in the direction parallel to the roll axis, and the soft body portion 32 is longer. Is larger than the diameter of the hard part 31.

  By doing so, the adhesives 4a and 4b, which are fluids, flow so as to reach every corner of the portion of the IC chip 3a which is the protruding portion of the IC inlet 3 which is a solid part. Therefore, troubles such as peeling due to lack of close adhesion of the adhesive are also eliminated, and the durability of the IC tag S as a laminated product is greatly improved.

  Here, the adhesive 4a is a fluid that was initially applied to the base sheet 1 side, and the adhesive 4b is a fluid that was initially applied to the base sheet 2 side, both of which are made of the same material. On the way the body 10 is commercialized as a laminated product, the IC tag S as a laminated product is manufactured by mixing and solidifying into a fluid mixture that is completely mixed.

  Incidentally, a roll having the same configuration as the roll shown in the roll 31 is a rubber made of a material whose surface of the rotary roll is different on both ends of the roll and on the inner side, as shown in JP-A-2000-86031. In the case of a conveying device in which a roll formed in step S3 is brought into contact with a sheet and rotated while being pressed so that the sheet can be conveyed while extending a wrinkle, as shown in JP-A-9-104423, a cylindrical shaft And a roll composed of both end regions and a central region supported by the roll, and a roll composed of a material whose roll surface in both end regions is more flexible than the roll surface in the central region. When winding a sheet, there is a case where the effect is improved by using it in a winding device that reduces the amount of air taken in and maintains a good winding state. The over La is to different from the action and effect at all.

  In this embodiment, the roll 31 is fixed and the base 41 is moved. However, the present invention is not limited to this. The base 41 is fixed and the roll 31 is moved. Also good.

It is a top view of the IC tag as an example of a laminated product. It is a sectional side view of an IC tag as an example of a laminated product. It is a schematic diagram which shows the process of manufacturing a laminated product from a laminated body. It is a figure which shows the manufacturing apparatus which manufactures a laminated product by the sticking smoothing process of a laminated body, (a) is a sectional side view, (b) is a partial top view. FIG. 5 is a partial front view of FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st base sheet 2 1st base sheet 3 IC inlet (solid component)
3a IC chip 3c Antenna 4 Adhesive (fluid)
DESCRIPTION OF SYMBOLS 10 Laminated body 31 Roll 32 Soft body part 33 Hard body part 34 Roll holder 35 Lift guide 35a Rack 36 Spring 37 Position adjustment frame 37a Pinion 41 Base 100 Laminated product manufacturing apparatus S IC tag (laminated product)

Claims (4)

A laminate in which a solid part and a fluid liquid layer are interposed between two base sheets is placed with the sheet surface of one base sheet in contact with a base, and the other A roll in which a hard body portion and a soft body portion are concentrically coupled in the axial direction is rotatably contacted with the sheet surface of the base sheet, and the laminate is sandwiched between the base and the roll while pressing. A method for producing a laminated product, characterized in that a laminated product is produced by smoothly solidifying the laminated body by moving either a roll or a base. The length of the soft body portion in the direction of the roll axis is longer than the length of the protruding portion of the solid part in the region pressed by the soft body portion in the direction parallel to the roll axis, and the diameter of the soft body portion is The method for producing a laminated product according to claim 1, wherein the diameter is larger than the diameter of the body part. A base on which a laminated body in which a solid part and a fluid liquid layer are interposed between two base sheets is placed in contact with the sheet surface of one base sheet; and the other base sheet A roll in which a hard body portion and a soft body portion are concentrically coupled in an axial direction so as to be rotatably contacted with a sheet surface, and the roll and the base while the laminate and the roll are sandwiched and pressed by the base and the roll An apparatus for manufacturing a laminated product, comprising: a pressing unit that moves any of the above and a moving unit, wherein the laminated body is solidified smoothly to produce a laminated product. The length of the soft body portion in the direction of the roll axis is longer than the length of the protruding portion of the solid part in the region pressed by the soft body portion in the direction parallel to the roll axis, and the diameter of the soft body portion is 4. The laminated product manufacturing apparatus according to claim 3, wherein the diameter is larger than the diameter of the body part.

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