JP2007296606A - Use of pressure sensitive adhesive pad and pad roll system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a use method of a pressure sensitive adhesive pad, which improves working efficiency, by reducing a burden of a worker. <P>SOLUTION: This pressure sensitive adhesive pad in a pressure sensitive adhesive pad laminated body R1 having: first and second separation sheets 3 and 4; and first and second pressure sensitive adhesive layers different in adhesive strength, on both obverse and reverse surfaces, is sent out one by one to a pressure sensitive adhesive pad taking-out position. Either one of the first and second separation sheets 3 and 4 is separated, and either one of the first and second pressure sensitive adhesive layers is exposed. A pad holder 22 of a pressure sensitive adhesive pad taking-out means is pressed to the one exposed pressure sensitive adhesive layer. The pressure sensitive adhesive pad adhering to the pad holder is held by tearing it off from the other separation sheet, and the other pressure sensitive adhesive layer is exposed. After it is determined that either one of the first and second pressure sensitive adhesive layers is used to be adhering to a pressure sensitive adhesive object, a pad roll R is installed on a horizontal shaft so that the pressure sensitive adhesive pad P is sent to a pad taking-out position in a state of turning a pressure sensitive adhesive layer opposite to the determined pressure sensitive adhesive layer to the pad holder side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for using an adhesive pad and a pad roll system, and more particularly to a method for using an adhesive pad used for adhesion to an object to be adhered such as a spectacle lens and a pad roll system having the adhesive pad.

When grinding the original lens with the lens surface polished to a desired shape, a method of grinding the side surface of the original lens with a grindstone in a state where the original lens is sandwiched and fixed by a pair of clamp shafts is common. . At this time, one clamp shaft is pressed against the original lens with an adhesive pad (axial displacement prevention pad) having an adhesive layer on both the front and back surfaces so that the original lens is not displaced (see FIG. 5).
This pressure-sensitive adhesive pad has a pressure-sensitive adhesive layer having sufficient adhesive force on the contact surface with the original lens, and is recently compatible with a slippery fluorine-coated surface of a fluorine-coated eyeglass lens (for example, Patent Documents). 1).

  Usually, the adhesive pad is distributed in the form of a pad roll. This pad roll is formed by winding a plurality of pressure-sensitive adhesive pads and two strip-like release sheets continuously laminated on the front and back pressure-sensitive adhesive layers of the plurality of pressure-sensitive adhesive pads. At the time of eyeglass lens grinding, a pad roll is set in a pad roll delivery device, and the adhesive pads of the pad roll are taken out one by one while being intermittently delivered, and the adhesive pads are attached to the tip of the clamp shaft. As this pad roll delivery device, for example, there is a Blocking Unit manufactured by A & R Optical Machinary Inc. (see Non-Patent Document 1).

  The pad roll delivery device winds a horizontal horizontal axis that rotatably holds the pad roll, a peeling portion that peels the upper release sheet to expose the upper adhesive layer, and two release sheets on the front and back sides. A pair of take-up rollers to be taken, and each take-up roller is rotated by a rotation amount corresponding to the interval between each of the adhesive pads in the pad roll so that the exposed adhesive pads are sent to the take-out position one by one. Has been. The pad take-out means has a rod that can be moved up and down arranged above the pad take-out position, and a pad holder that is detachably attached to the tip of the rod. The adhesive pad exposed by lowering the pad holder The adhesive pad is peeled off from the lower release sheet by lifting the pad holder to which the adhesive pad is adhered, and taking out the adhesive pad. After the pad holder holding the adhesive pad is detached from the rod and attached to the tip of the clamp shaft, the spectacle lens is ground as described above.

  When performing conventional spectacle lens grinding, an adhesive pad to be used was selected according to the type of spectacle lens to be ground. In other words, when grinding a fluorine-coated eyeglass lens, a fluorine-coated adhesive pad having a strong adhesive force A with an adhesive layer that adheres to the fluorine-coated surface of the lens is selected, and a general non-fluorine-coated eyeglass lens is ground. In this case, a non-fluorine-coated adhesive pad is selected. In the non-fluorine-coated adhesive pad, the adhesive layer that adheres to the lens surface is set to have a lower adhesive force B than the fluorine-coated adhesive pad. This is because if a fluorine-coated adhesive pad is used on the non-fluorine-coated surface of the lens, the adhesive force is too strong to make it difficult to peel off the adhesive pad from the non-fluorine-coated surface. Note that the adhesive force C of the pressure-sensitive adhesive layer on the surface side in contact with the pad holder is generally set to about the adhesive force B for each of the fluorine-coated and non-fluorine-coated adhesive pads.

  In this way, it is necessary to use different adhesive pads depending on the type of eyeglass lens to be ground, so when changing the type of eyeglass lens to be ground during the work process, the pad roll delivery device is temporarily stopped and used. The pad roll that had been removed was removed from the horizontal axis, and another type of pad roll was set on the horizontal axis.

International Publication WO2006 / 003699 Pamphlet http://www.ar.be/en/aboutus/ourtech.php

  However, pad rolls of different types of adhesive pads may differ from manufacturer to manufacturer, so the roll width, adhesive pad spacing, etc. will also differ, pad roll mounting position on the horizontal axis, adhesive pad delivery amount, etc. Need to be fine-tuned, increasing the burden on the operator and lowering the work efficiency. Moreover, if such fine adjustment is not made, the adhesive pad protrudes greatly from the pad holder and is held, and when such a pad holder and adhesive pad are used in the spectacle lens grinding process, the fixing force of the lens is reduced. As a result, the lens was misaligned and the grinding accuracy was reduced.

  This invention is made | formed in view of the above-mentioned subject, and provides the usage method and pad roll system of the adhesive pad which can reduce an operator's burden and can improve work efficiency.

  Thus, according to the present invention, the strip-shaped first release sheet and the second release sheet are separated from the adhesive pads having the first adhesive layer and the second adhesive layer having different adhesive forces on the front and back surfaces, respectively. A step (a) of attaching a pad roll formed by winding a belt-like laminate comprising an adhesive pad group disposed between the first and second release sheets to a horizontal axis of a pad roll delivery device; and the pad One of the adhesive pads in the laminate is sent to the adhesive pad take-out position one by one with a roll delivery device, and any one of the first and second adhesive layers is released by peeling off one of the first and second release sheets. One of them is exposed, and the pad holder of the adhesive pad taking-out means provided in the vicinity of the adhesive pad taking-out position is pressed against the one adhesive layer exposed, and the pad holder A step (b) of peeling and holding the pressure-sensitive adhesive pad from the other release sheet and exposing the other pressure-sensitive adhesive layer, wherein in the step (a), of the first and second pressure-sensitive adhesive layers Decide to use one of them for adhesion to any object to be adhered, and then the adhesive pad is in the pad removal position with the adhesive layer opposite to the determined adhesive layer facing the pad holder. A method of using an adhesive pad to attach a pad roll to a horizontal axis so that it can be sent to

  According to another aspect of the present invention, a plurality of pressure-sensitive adhesive pads having first and second pressure-sensitive adhesive layers having different adhesive strengths on both the front and back sides of the belt-like first and second release sheets. A pad roll formed by winding a band-shaped laminate composed of a group of adhesive pads disposed between the first and second release sheets, and a horizontal axis that rotatably holds the pad roll; A peeling portion that peels off the first release sheet or the second release sheet to expose the first adhesive layer or the second adhesive layer, and a pair of winding rollers that winds up the first release sheet and the second release sheet A pad roll delivery device, and a pad holder that is pressed against and adheres to the adhesive pad from which the first adhesive layer or the second adhesive layer is exposed. A pad roll system is provided that includes an adhesive pad take-out means that peels off from the release sheet or the first release sheet, and the horizontal axis and the pad roll can be attached by reversing the pad roll by 180 degrees with respect to the horizontal axis. Is done.

According to the present invention, one of the first and second pressure-sensitive adhesive layers of the pressure-sensitive adhesive pad is determined in advance to be used for pressure-sensitive adhesion with an object to be bonded, and then opposite to the determined pressure-sensitive adhesive layer. Since the pad roll is attached to the horizontal axis so that the adhesive pad is sent to the pad removal position with the adhesive layer facing toward the pad holder, the same pad roll adhesive pad can be used for different objects it can.
Also, for example, from the work step of holding the adhesive pad with a pad holder as the second adhesive layer is used for the adherend, the adhesive pad is used as the pad holder as the first adhesive layer is used for another object. When moving to the work process held at, the pad roll attached to the horizontal axis of the pad roll delivery device need only be reattached in a state of being inverted 180 degrees. At this time, it is only necessary to reverse the mounting state of the same pad roll to the horizontal axis, so there is no need to adjust the feeding of the adhesive pad according to the pitch of the adhesive pad or the center of the pad roll in the width direction. The work efficiency is improved as compared with the case of changing to a roll, and the burden on the worker can be reduced.
Therefore, when the adhesive pad is used as an axis misalignment prevention pad when cutting eyeglass lenses (original lens), the same pad roll adhesive pad is used for both water-repellent coated glasses lenses and non-water-repellent coated glasses lenses. Can be used for In other words, for water-repellent coated eyeglass lenses, the adhesive pad is held by a pad holder so that a strong adhesive layer is exposed, and for non-water-repellent coated eyeglass lenses, a weak adhesive layer is used. The adhesive pad can be held with a pad holder so that is exposed.

The method of using the pressure-sensitive adhesive pad of the present invention is such that a plurality of pressure-sensitive adhesive pads each having a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer having different adhesive forces on the front and back surfaces are separated from the belt-shaped first release sheet and second release sheet. And a step (a) of attaching a pad roll formed by winding a belt-like laminate comprising an adhesive pad group disposed between the first and second release sheets to the horizontal axis of the pad roll delivery device; First and second pressure-sensitive adhesive layers by feeding one adhesive pad in the laminate to the pressure-sensitive adhesive pad take-out position one by one with the pad roll delivery device and peeling one of the first and second release sheets Any one of these is exposed, and the pad holder of the adhesive pad taking-out means provided in the vicinity of the adhesive pad taking-out position is pressed against the exposed one adhesive layer, and the pad A step (b) of peeling and holding the pressure-sensitive adhesive pad adhered to the der from the other release sheet and exposing the other pressure-sensitive adhesive layer, wherein in the step (a), the first and second pressure-sensitive adhesive layers The adhesive pad is determined to be used for adhesion to any object to be adhered, and then the adhesive pad is padded with the adhesive layer opposite to the determined adhesive layer facing the pad holder side. The pad roll is attached to a horizontal axis so as to be sent to the take-out position.
The method of using the adhesive pad of the present invention is particularly suitable for attaching the adhesive pad (axial misalignment prevention pad) used when grinding a spectacle lens (original lens) to the lens surface using the pad holder. It can be applied as a method of holding the adhesive pad by adhesive force.

Moreover, the usage method of the adhesive pad of this invention can be performed suitably using the following pad roll systems S.
As shown in FIG. 1, the pad roll system S includes a pad roll R having a plurality of adhesive pads P, a pad roll delivery device T, and an adhesive pad take-out means for taking out the adhesive pads P from the pad roll R one by one. C.

As shown in FIG. 1 to FIG. 3, the pad roll R has a first adhesive sheet 1 and a second adhesive layer 2 having different adhesive strengths from the belt-like first release sheet 3 and second release sheet 4. A plurality of adhesive pads P are spaced apart from each other, and a band-shaped laminate R1 composed of a group of adhesive pads arranged between the first and second release sheets 3 and 4 is wound, and the center of winding is the pad. It is a through hole through which a horizontal shaft 11 (described later) of the roll delivery device T is inserted. In addition, FIG. 2 is the figure which looked at the state which abbreviate | omitted illustration of the 1st peeling sheet in the laminated body R1 drawn | fed out from the pad roll R planarly.
As shown in FIG. 2, the adhesive pad P is formed in an elliptical shape in this embodiment, and a plurality of the adhesive pads P are peeled at equal intervals L in a state where the major axis direction of the ellipse coincides with the peeling sheet width direction. It is arranged between the sheets 3 and 4. In FIG. 2, the symbol W represents the width of the release sheet.

  Further, as shown in FIG. 3, the adhesive pad P has a laminated structure in which at least the first and second adhesive layers 1 and 2 are laminated on both front and back surfaces of a base material B made of a material such as a resin film. ing. In this embodiment, the case where the adhesive force of the 2nd adhesive layer 2 is set stronger than the adhesive force of the 1st adhesive layer 1 is illustrated. Further, the adhesive pad P may have a laminated structure in which an adhesive layer and a urethane layer are further laminated in this order from the substrate side between the substrate B and the first adhesive layer 1. In the case of this embodiment, the adhesive pad P has a total thickness of about 1 mm, a major axis of about 37 mm, a minor axis of about 21 mm, and a width W between the first and second release sheets 3 and 4 of about 40 mm. They are arranged at a pitch L of about 24 mm. In addition, the shape of the adhesive pad P in the present invention may be any shape as long as it can prevent axial displacement during eyeglass lens grinding, and the planar shape is not limited to the ellipse, for example, a circle, a triangle, Any shape such as a polygon such as a square or an indefinite shape may be used. The details of the adhesive pad P that can be used in the present invention are disclosed in Patent Document 1.

  As shown in FIG. 1, the pad roll delivery device T includes a horizontal horizontal shaft 11 that rotatably holds the pad roll R, a table 12 that has a feed hole through which the laminated body R1 of the pad roll R is inserted, and this A peeling portion 13 provided on the downstream side of the feeding hole of the table 12 and peeling the first release sheet 3 or the second release sheet 4 to expose the first adhesive layer 1 or the second adhesive layer 2; It has a pair of winding rollers 14 and 15 for winding the first release sheet 3 and the second release sheet 4. In FIG. 1, reference numerals 16, 17, and 18 denote guide rollers.

  The horizontal shaft 11 is a cylindrical body or cylindrical body having a constant diameter in the axial direction, and is supported horizontally by a support member (not shown), and at least one end thereof can be opened to pass through the through hole of the pad roll R. It is said. That is, the horizontal shaft 11 and the pad roll R are configured so that the pad roll R can be reversed 180 degrees with respect to the horizontal shaft 11 and attached. The horizontal shaft 11 may be provided with a pair of outer flanges 11a so that the pad roll R attached to the horizontal shaft 11 is not displaced during operation. The outer flange on the open side of the horizontal shaft 11 has, for example, a cylindrical portion that is slidably fitted to the horizontal shaft 11, and the pad roll R is sandwiched between the pair of outer flanges 11a so as to be rotatable. You may comprise so that the said cylinder part of an outer flange may be fixed to the horizontal axis | shaft 11 with a screw | thread etc. FIG.

  The peeling part 13 has an upper inclined surface 13a that is inclined upward toward the upstream side of the transport at the downstream end of the transport hole of the feed hole of the table 12, and from the lower end of the feed hole toward the downstream side of the transport. The horizontal surface 13b extends horizontally, and the lower inclined surface 13c is inclined downward from the most downstream end of the horizontal surface 13c toward the upstream side of conveyance. When the peeling portion 13 is configured in this manner, the peeling sheet (in this case, the first peeling sheet 3) on the laminate R1 is sent along the upper inclined surface 13a to the downstream side of the conveyance, and the winding roller 14 The lower release sheet (in this case, the second release sheet 4) passes through the horizontal surface 13b and is taken up by the take-up roller 15 via the lower guide rolls 17 and 18. That is, when the pair of winding rollers 14 and 15 are rotated every the pitch L of the adhesive pads P and P, the upper and lower release sheets are pulled, and the upper release sheet is automatically peeled and exposed. The adhesive sheet P is fed onto the horizontal surface 13b which is the take-out position.

The adhesive pad take-out means C includes an elevating rod 21 such as an expansion / contraction cylinder and a pad holder 22 detachably attached to the lower end of the elevating rod 21, and a horizontal surface 13c of the peeling portion 13 of the pad roll delivery device S. Is placed on top.
The pad holder 22 is made of, for example, an elastic plastic and has a contact surface that contacts the adhesive pad P having substantially the same shape and size as the adhesive pad P. Note that a commercially available pad holder 22 can be used.
The adhesive pad take-out means C operates so that when the exposed adhesive pad P is sent to the take-out position, the lower end of the lifting rod 21 is lowered and the pad holder 22 is pressed against the adhesive layer on the adhesive pad P. Then, the adhesive pad P is peeled from the lower release sheet by raising the pad holder 22 to which the adhesive pad P is adhered, or moving the lower release sheet in the winding direction as the pad holder 22 is raised.

Next, referring to FIGS. 1 to 4, an example of a process of holding the adhesive pad using this pad roll system and further affixing the adhesive pad to one surface of the spectacle lens and fixing it to grind the lens explain.
When the eyeglass lens to be ground is a lens having a water-repellent coating (for example, fluorine coating) only on the convex surface of the lens, as shown in FIG. 2, the pad roll R is set on the horizontal shaft 11 of the pad roll delivery device S so that the one with the weaker adhesive force is fed upward. Therefore, in this embodiment, the pad roll R is attached to the horizontal shaft 11 so that the first pressure-sensitive adhesive layer 1 is fed upward (see FIG. 3).

Next, the laminated body R1 of the pad roll R is passed through the feed hole of the pad roll delivery device S, and the top ends of the upper and lower first and second release sheets 3 and 4 are connected to, for example, a pair of winding rollers via a connecting tape. 14 and 15 are connected. Then, each winding roller 14 and 15 is rotated to feed the first adhesive pad P to the take-out position, and the first adhesive layer 1 is exposed. At this time, the pad roll R rotates in the direction indicated by the dotted arrow, and the laminate R1 is fed out from the upper part of the pad roll R.
Subsequently, the pad holder 22 of the pad take-out means C is lowered to adhere to the first adhesive layer 1 of the adhesive pad P, and the pad holder 22 is raised to peel off the adhesive pad P from the second release sheet 4.

  Thereafter, the pad holder 22 holding the adhesive pad P is removed from the lifting rod 21 and another lifting rod disposed above the spectacle lens (original lens) M mounted on the mounting table 30 as shown in FIG. It attaches to the lower end of 31, and the pad holder 22 is lowered | hung with the raising / lowering rod 31, and the 2nd adhesive layer 2 of the adhesion pad P is pressed on the convex surface of the lens M1, and is adhere | attached. At this time, the adhesive pad P is attached to the lens M1 so that the focal point of the spectacle lens M1 and the center of the adhesive pad P substantially coincide. Then, by raising the pad holder 22, the eyeglass lens M <b> 1 is held by the pad holder 22 via the adhesive pad P. The process of attaching the adhesive pad P to the eyeglass lens M1 may be performed by the operator's hand. Alternatively, the adhesive pad P may be attached to the eyeglass lens M1 by the adhesive pad take-out means C.

  During the process of attaching the adhesive pad P to the eyeglass lens M1, a new pad holder 21 is attached to the lower end of the lifting rod 21 of the pad taking-out means C, and the winding rolls 14 and 15 are one pitch L of the adhesive pad P. By winding the release sheets 3 and 4 only, the second adhesive pad P peeled off from the second release sheet 3 moves to the take-out position, and the second adhesive pad P is taken out by the pad holder 22 in the same manner as described above. Thus, the removal of the adhesive pad P is repeated.

On the other hand, the pad holder 22 holding the adhesive pad P and the eyeglass lens M1 is attached to one end of a pair of clamp shafts 41 and 42 for eyeglass lens grinding, as shown in FIG. Thereafter, the other clamp shaft 42 is pressed against the concave surface of the spectacle lens M1 to fix the spectacle lens M1. A protective film may be interposed between the original lens 1 and the clamp shaft 3.
The fixed lens is ground into a desired shape by the grindstone 50. Moreover, it is attached | subjected to processes, such as chamfering, grooving, a bevel process, a mirror polish process, as needed. Then, a spectacle lens of a desired shape can be obtained by peeling the pad from the obtained spectacle lens. In FIG. 5, reference numeral 51 denotes a bevel forming groove. In this lens grinding step, the convex surface of the spectacle lens M1 has been subjected to a water-repellent coating treatment. Since the lens M1 is sandwiched between the clamp shafts 41 and 42, the lens M1 is not displaced. After the grinding, the adhesive pad P is peeled off from the lens M1 and the pad holder 22 and discarded, and the pad holder 22 is reused.

  When the plurality of water-repellent coated eyeglass lenses are ground in this way and then switched to the grinding of the non-water-repellent coated lenses, the pad roll R that has been previously cut from the laminate R1 is removed from the horizontal shaft 11. Inverted 180 degrees and attached to the horizontal shaft 11 again. In other words, the pad roll R is reattached to the horizontal shaft 11 with the positions of one side and the other side of the pad roll R reversed by 180 degrees. By doing so, as shown in FIG. 6, the laminated body R <b> 1 is fed out from the lower part of the pad roll R, and the second adhesive layer having a strong adhesive force on the upper surface of each adhesive pad P sent to the pad roll delivery device S. The pressure-sensitive adhesive layer 2 is disposed, and the first pressure-sensitive adhesive layer 1 having a lower adhesive strength than the second pressure-sensitive adhesive layer 2 is disposed on the lower surface. In this case, in the laminated body R1 fed to the pad roll delivery device S, the second release sheet 4 is taken up by the upper take-up roll 14, and the first release sheet 3 is taken up by the lower take-up roll 15. It is done. In addition, since the same pad roll R is used, adjustment of the feeding amount of the laminated body R1, adjustment of the center position in the width direction of the laminated body R1, and the like are unnecessary.

  In the pad roll R set as shown in FIG. 6, the adhesive pads P are sequentially exposed in the same manner as described in FIG. 1, and the exposed second adhesive layer 2 adheres to the pad holder 22 of the pad take-out means C. Then, the adhesive pad P is peeled off from the first release sheet 3. After that, the first adhesive layer 1 of the adhesive pad P attached to the pad holder 22 is pressed against and adhered to the convex surface (non-water-repellent coated surface) of the non-water-repellent coated eyeglass lens, and the adhesive pad is used with the pad holder 22 Holds P and non-water repellent coated eyeglass lenses.

  Then, as shown in FIG. 7, the pad holder 22 holding the adhesive pad P and the spectacle lens M2 is attached to one clamp shaft 41 for spectacle lens grinding, and the other clamp shaft 42 is attached to the concave surface of the spectacle lens M2. After pressing and fixing the spectacle lens M2, it grinds to a desired shape with the grindstone 50. In this lens grinding step, since the convex surface of the spectacle lens M2 is not subjected to the water-repellent coating treatment, even if it is the first pressure-sensitive adhesive layer 1 whose adhesive force is weaker than that of the second pressure-sensitive adhesive layer 2, the convex surface. The lens M2 is not misaligned. Moreover, the eyeglass lens M2 can be easily peeled off from the adhesive pad P after grinding.

  1-4, the method of using the adhesive pad when first grinding the water-repellent coated eyeglass lens and then grinding the non-water-repellent coated eyeglass lens was explained. Then, when the water repellent coated eyeglass lens is ground thereafter, the reverse procedure of the above description may be performed.

  The present invention is suitable for a method in which an adhesive pad used when grinding a spectacle lens (original lens) is attached to a lens surface as an axial displacement prevention pad.

It is the 1st figure showing the embodiment of the usage method and pad roll system of the adhesion pad of the present invention. It is a fragmentary top view which abbreviate | omits the 1st peeling sheet and shows the laminated body of the pad roll in embodiment. It is a figure which shows the state which pressed the pad holder in embodiment into the adhesion pad. It is a figure which shows the state which affixes the adhesive pad in embodiment to a water-repellent coat spectacle lens. It is the schematic which shows the state which grinds a water-repellent coat spectacle lens using this invention. It is a 2nd figure explaining the process of reattaching the pad roll in embodiment to a horizontal axis, and taking out an adhesion pad. It is the schematic which shows the grinding process of the non-water-repellent coat spectacle lens performed after the process of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st adhesive layer 2 2nd adhesive layer 3 1st peeling sheet 4 2nd peeling sheet 11 Horizontal axis 12 Stand 13 Peeling parts 14 and 15 Winding roller 21 Lifting rod 22 Pad holder C Adhesive pad taking-out means L Pitch M1 Water repellent coated eyeglass lens M2 Non-water repellent coated eyeglass lens P Adhesive pad R Pad roll R1 Laminate S Pad roll delivery device W Width

Claims (4)

The first and second release sheets are separated from each other by a plurality of adhesive pads having a first adhesive layer and a second adhesive layer having different adhesive strengths on the front and back surfaces, respectively. A step (a) of attaching a pad roll formed by winding a band-shaped laminate composed of a group of adhesive pads disposed between to a horizontal axis of a pad roll delivery device;
First and second pressure-sensitive adhesive layers by feeding one adhesive pad in the laminate to the pressure-sensitive adhesive pad take-out position one by one with the pad roll delivery device and peeling one of the first and second release sheets Any one of the above is exposed, the pad holder of the adhesive pad removing means provided in the vicinity of the adhesive pad removing position is pressed against the one adhesive layer exposed, and the adhesive pad adhered to the pad holder is pressed against the other A step (b) of peeling off and holding the release sheet and exposing the other pressure-sensitive adhesive layer;
In the step (a), it is determined that any one of the first and second pressure-sensitive adhesive layers is used for pressure-sensitive adhesive with an object to be bonded, and then the pressure-sensitive adhesive is opposite to the determined pressure-sensitive adhesive layer. A method for using a pressure-sensitive adhesive pad, comprising: attaching a pad roll to a horizontal axis so that the pressure-sensitive adhesive pad is sent to a pad take-out position with the agent layer facing the pad holder.   The method for using an adhesive pad according to claim 1, wherein the adhesive pad is an anti-axial misalignment pad for grinding water-repellent coated eyeglass lenses and non-water-repellent coated eyeglass lenses. The first and second release sheets are separated from each other by a plurality of adhesive pads having a first adhesive layer and a second adhesive layer having different adhesive strengths on the front and back surfaces, respectively. A pad roll formed by winding a belt-shaped laminate composed of a group of adhesive pads disposed between
A horizontal axis that rotatably holds the pad roll, a peeling portion that peels off the first release sheet or the second release sheet to expose the first adhesive layer or the second adhesive layer, and a first release sheet And a pad roll delivery device having a pair of winding rollers for winding the second release sheet;
A pad holder that is pressed against and adheres to the adhesive pad from which the first pressure-sensitive adhesive layer or the second pressure-sensitive adhesive layer is exposed, and peels off the pressure-sensitive adhesive pad that is adhered to the pad holder from the second release sheet or the first release sheet; An adhesive pad removing means,
The pad roll system is characterized in that the horizontal axis and the pad roll are configured to be mounted by reversing the pad roll by 180 degrees with respect to the horizontal axis.   The pad roll system according to claim 3, wherein the adhesive pad is a shaft misalignment prevention pad for grinding water-repellent coated glasses lenses and non-water-repellent coated glasses lenses.

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