JP2006095282A - Pressure sensitive adhesive sheet for dust prevention - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the occurrence of a trouble caused by a damage of a pressure sensitive adhesive sheet for the dust prevention when a heavy machine such as a fork lift truck passes therethrough in a case where the pressure sensitive adhesive sheet for the dust prevention is installed at an entrance/exit having a problem of intrusion of contamination and dust from the outside in a semiconductor related plant, a chemicals factory, and the like. <P>SOLUTION: This pressure sensitive adhesive sheet 1 for the dust prevention is provided with a sheet base material 2 formed of olefin-based resin, a first adhesive material layer 3 adjoining to one surface of the base material 2, a second adhesive material layer 4 adjoining to the other surface of the base material and detachably attached to a building floor face, and a peeling part 5 adjoining to the first adhesive material layer 3 in the opposite side to the base material; and the first adhesive material layer 3 has dust removing function with the peeling part 5 detached and the first adhesive material layer 3 exposed to the outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dustproof pressure-sensitive adhesive sheet installed at the entrance of a building or the like.

  Conventionally, dust-proof adhesive sheets have been installed at the entrances of spaces where entry of dust and dust from the outside, such as semiconductor-related factories and chemical factories, has been a problem, and dust and dirt adhered to footwear has been removed. It has been broken.

As such a dust-proof pressure-sensitive adhesive sheet, for example, a plurality of pressure-sensitive adhesive films are laminated to remove dust by adhering dust and dust to the pressure-sensitive adhesive layer, and the suction power is reduced so that the dust-proof ability can be maintained. It is considered that the adhesive film can be peeled off sequentially. (For example, see Patent Document 1.)
Japanese Patent Laid-Open No. 10-151103

  However, if the dustproof pressure-sensitive adhesive sheet having the above-described configuration is installed at an entrance through which a heavy machine such as a forklift passes, such a problem arises that the dustproof pressure-sensitive adhesive sheet is damaged. At this time, not only the dust-proof adhesive sheet exposed on the surface but also several sheets immediately below it are often damaged at the same time, that is, wasteful removal of unused adhesive sheets is caused.

  This invention solves such a subject, and it comprises so that a dust-proof adhesive sheet can be installed in the entrance and exit which a heavy machine passes.

  That is, the dustproof pressure-sensitive adhesive sheet according to the present invention includes a sheet-like base material formed of an olefin resin, a first pressure-sensitive adhesive layer adjacent to one surface of the base material, and the other surface of the base material. The first adhesive material layer adjacent to the first adhesive material layer or a release portion adjacent to the surface of the second adhesive material layer opposite to the base material is removed, and the release portion is removed, and the first adhesive material layer is removed. One of the pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer is exposed to the outside, and the other is adhered to the building floor, and the pressure-sensitive adhesive layer on the exposed side has a dust removing function.

  If it is such, it has an adhesive material layer on both surfaces of one base material, the function of adsorbing dust and dust on one of the first adhesive material layer and the second adhesive material layer, and the building floor on the other Each of them has a function of directly adhering to the surface, and a single dust-proof adhesive sheet combines these functions, so a single dust-proof adhesive sheet can be laid alone, and the level difference can be greatly reduced. . In addition, the one adhesive material layer adsorbs and removes dust and dust adhering to the footwear and tires of the transporting machine, and the other adhesive material layer is directly bonded to the building floor, so that the transporting machine etc. The dust-proof pressure-sensitive adhesive sheet is less likely to be peeled off when a heavy machine passes through, while the dust-proof pressure-sensitive adhesive sheet may be peeled off because one dust-proof pressure-sensitive adhesive sheet can be laid alone. Even if it exists, generation | occurrence | production of the malfunction which the other unused dust-proof adhesive sheet breaks together can be prevented. That is, the dust-proof adhesive sheet can be installed at the entrance through which the heavy machinery passes.

  In addition, another dustproof pressure-sensitive adhesive sheet according to the present invention includes a sheet-like base material, a first pressure-sensitive adhesive layer adjacent to one surface of the base material, and a second adjacent to the other surface of the base material. While having an adhesive material layer, and the peeling part adjacent to the surface on the opposite side to the base material of the 1st adhesive material layer or the 2nd adhesive material layer, removing the peeling part, the 1st adhesive material layer or The adhesive layer on the side exposed to the outside has a dust removal function in a state in which one of the second adhesive layers is exposed to the outside and adhered to an object to be adhered to the other.

  If it is such, in addition to the main effect concerning the dustproof pressure-sensitive adhesive sheet described above, not only the building floor but also the wall adjacent to the building floor is to be adhered to the side, It is also possible to obtain an effect of adsorbing and removing the collected dust and dust. Furthermore, by using the inner surface of the machinery and the surface of the installation base of the machinery as an adherend, the dust and dust scattered from the machinery are adsorbed and the dust and dust are scattered around the machinery. It can also be prevented.

  If the pressure-sensitive adhesive strength of the first pressure-sensitive adhesive layer and the pressure-sensitive adhesive strength of the second pressure-sensitive adhesive layer are different from each other, the surface on the side having the high pressure-sensitive adhesive strength is directly adhered to the building floor surface to make it difficult to peel off. And a mode in which the surface having the higher adhesive strength is exposed to the outside and dust and dust are reliably removed.

  As a mode for making it possible to suppress the volume of sound generated when passing over such a dustproof pressure-sensitive adhesive sheet, the base material is formed using an unstretched olefin-based sheet. Are listed.

  If the base material is formed using an olefin-based sheet that has been subjected to corona discharge machining on both sides in advance, the adhesive material tends to adhere to both surfaces of the base material using the olefin-based sheet. Such a dust-proof adhesive sheet can be formed easily and inexpensively.

  If the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer are formed by using an acrylic pressure-sensitive adhesive material, the first pressure-sensitive adhesive will be applied even if chemicals adhere to such a dust-proof pressure-sensitive adhesive sheet. The adhesive strength of the material layer and the second adhesive material layer is unlikely to be impaired. Therefore, such a dustproof adhesive sheet can be suitably used particularly near the entrance of a chemical factory.

  As an aspect for facilitating the installation of such a dustproof pressure-sensitive adhesive sheet, one supplied in a state of being wound around an unwinding core material can be mentioned. This is because the dust-proof adhesive sheet can be adhered to the building floor surface while being unwound from the unwinding core material.

  And, if the base material is in the form of a sheet that has been printed or colored on at least one side, for example, emergency exits, restricted areas, or products for those who pass on the dust-proof adhesive sheet by printing and coloring. A guide section for guiding another line or the like can be provided, and a function for guiding a passerby can be added to such a dust-proof adhesive sheet.

  In addition, if the sheet further comprises a conductive layer having conductivity, or if the base material is formed of a conductive material, such a sheet is difficult to be charged. It can be suitably used in an environment to dislike.

  The dust-proof pressure-sensitive adhesive sheet according to the present invention is provided with a peeling portion adjacent to one pressure-sensitive adhesive layer, and adheres the other pressure-sensitive adhesive layer to a building floor, and removes the peeling portion to provide one pressure-sensitive adhesive material. Since the dust and dust adhering to the footwear and the tire of the transporting machine are absorbed by the layer, the dust-proof adhesive sheet is unlikely to peel off when a heavy machine such as a transporting machine passes, It can be installed at the doorway through which heavy machinery passes.

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

  As schematically shown in FIG. 1, the dustproof pressure-sensitive adhesive sheet 1 according to the present embodiment is supplied in a state of being wound around the unwinding core material C1, and is an object to be adhered, that is, in this embodiment. It is laid on the floor F of the building along the passageway leading to the entrance and exit of the factory. In addition, the building floor F is the surface of a concrete floor structure in this embodiment.

  Specifically, as shown in FIG. 2, the cross-sectional shape is a sheet-like substrate 2 formed of an olefin resin, the first adhesive layer 3 adjacent to one surface of the substrate 2, and the 4 layer structure provided with the 2nd adhesive material layer 4 adjacent to the other surface of the base material 2, and the peeling part 5 adjacent to the surface on the opposite side to the said base material 2 of the said 1st adhesive material layer 3 is comprised. ing. And in use, as shown in FIG. 3, the second pressure-sensitive adhesive layer 4 is adhered to the building floor F, and the peeling portion 5 is removed to remove the first pressure-sensitive adhesive layer. 3 is exposed to the outside, and dust and dust adhering to footwear, a tire of a transporting machine, and the like are adsorbed to the first adhesive material layer 3.

  More specifically, the base material 2 is formed in advance by corona discharge machining so that an acrylic adhesive material can be easily attached to both surfaces of an unstretched olefin-based sheet. The thickness dimension of the base material 2 is set to a predetermined value in the range of 40 to 120 μm, for example, 60 μm, in order to reduce the cost while ensuring the strength that does not damage the forklift when passing through the passage. is doing.

  The first pressure-sensitive adhesive layer 3 has an adhesive strength that is sufficient to adsorb dust and dust adhering to footwear, tires of transporting machines, etc., and does not hinder walking. It is formed by uniformly applying to one surface of the material 2.

  On the other hand, the second pressure-sensitive adhesive layer 4 has a problem that air bubbles are trapped between the second pressure-sensitive adhesive layer 4 and the building floor F when the dust-proof pressure-sensitive adhesive sheet 1 is applied to the building floor F. In order to prevent the occurrence and to adhere to the building floor F once, and to peel off from the building floor F when dust or dust adheres to the first adhesive layer 3 and the dust removal ability is not sufficiently obtained As shown in FIG. 4, an acrylic pressure-sensitive adhesive is formed on the other surface of the substrate 2 in a striped manner. That is, the acrylic adhesive is applied to the hatched portion of FIG. 4, and the acrylic adhesive is not applied to the non-hatched portion of FIG. As shown in FIG. 4, a ventilation groove 4m having a predetermined width dimension, for example, a width dimension of about 4 mm is formed. Further, the adhesive strength of the second adhesive material layer 4 is set to be lower than that of the first adhesive material layer 3 in the present embodiment.

  Moreover, the said peeling part 5 is formed with the olefin type sheet | seat which performed the extending | stretching process previously, and peels this peeling part 5 from the said 1st adhesive material layer 3 to the material to be used, The said 1st adhesive material layer 3 is exposed so as to exert a function of adsorbing dust and dirt adhering to footwear and tires of transporting machines.

  The dust-proof pressure-sensitive adhesive sheet 1 is supplied in the form of a sheet roll wound around the unwinding core material C1 as described above, and is wound around a winding core material C2 described later and removed. I am doing so.

  The dustproof pressure-sensitive adhesive sheet 1 is laid and removed using a laying apparatus 10 as described below.

  The laying device 10 includes a sheet laying portion 101 for supplying a new dustproof pressure-sensitive adhesive sheet 1, a sheet removal portion 102 for removing the dustproof pressure-sensitive adhesive sheet 1 whose dust removal capability is not sufficiently obtained, and a housing 103 for storing them. And a traveling wheel 104 that supports the housing 103 from below, and an operation unit 105 that is provided in the housing 103 and receives the supply of traveling force.

  The sheet laying unit 101 includes a holding unit 1011 that holds the unwinding core material C1, a guide unit 1012 that guides the dust-proof adhesive sheet 1 unwound from the holding unit 1011 toward the building floor F, A sheet pressing part 1013 that presses the dust-proof adhesive sheet 1 toward the building floor F and presses the second adhesive material layer 4 against the building floor F, and the peeling part 5 that peels from the dust-proof adhesive sheet 1. And a peeling portion winding portion 1014 that winds up.

  Specifically, the sheet roll holding portions 1011 are provided at both ends in the width direction of the housing 103, and hold both end portions in the width direction of the unwinding core material C1.

  The guide portion 1012 is formed using, for example, rubber-like rolling wheels, and guides the dust-proof adhesive sheet 1 toward the sheet pressing portion 1013.

  The sheet pressing portion 1013 is a rubber-like roll in this embodiment, and is formed by supporting both ends of the sheet pressing portion 1013 on the housing 103. Moreover, in this embodiment, it is connected to a height position changing mechanism (not shown), and the height of the sheet pressing portion 1013 according to the thickness dimension of the dustproof pressure-sensitive adhesive sheet 1 through this height position changing mechanism. It is comprised so that adjustment of a position and adjustment of the pressing force to the building floor F of the dust-proof adhesive sheet 1 can be performed.

  The peeling portion winding portion 1014 is connected to a motor (not shown) in the present embodiment, and receives the power supply from the motor to wind the peeling portion 5 around the peeling portion winding core C3. Further, the peeling part winding core C3 is provided with a peeling end holding part (not shown) for holding the end part of the peeling part 5, and the peeling is performed when the sheet roll is held by the sheet roll holding part 1011. The end portion of the portion 5 is held by the peeling end holding portion.

  On the other hand, the said sheet removal part 102 is comprised so that the dust-proof adhesive sheet 1 peeled from the building floor F may be wound up to the winding core material C2. Specifically, a holding unit 1021 that holds the unwinding core material C2 and a guide unit 1022 that guides the dustproof pressure-sensitive adhesive sheet 1 peeled from the building floor surface F toward the unwinding core material C2. . The holding portion 1021 is connected to a motor (not shown) in the present embodiment, and has a function of receiving power supplied from the motor and winding the dust-proof adhesive sheet 1 around the winding core C2.

  In this embodiment, the dustproof pressure-sensitive adhesive sheet 1 is laid after the dustproof pressure-sensitive adhesive sheet 1 is held by the sheet roll holding part 1011 and the end of the peeling part 5 is held by the peeling edge holding part in advance. The laying device 10 is run, and the dust pressing adhesive sheet 1 is pressed against the building floor F by the sheet pressing portion 1013. At that time, the laying device 10 simultaneously supplies power from the motor to the peeling portion winding portion 1014 and winds the peeling portion 5 around the peeling portion winding core C3.

  On the other hand, the dustproof pressure-sensitive adhesive sheet 1 is removed by holding the end of the dustproof pressure-sensitive adhesive sheet 1 peeled off from the building floor F to the winding core C2 and then running the laying device 10 to move the motor. The power is supplied to the holding portion 1021 from the above, and the function of winding the dust-proof adhesive sheet 1 around the winding core material C2 is exhibited.

  As described above, the dust-proof pressure-sensitive adhesive sheet 1 according to the present embodiment has the first pressure-sensitive adhesive layer 3 on one surface of the substrate 2 formed of the olefin-based sheet and the second pressure-sensitive adhesive layer on the other surface. 4 is adjacent to the first pressure-sensitive adhesive layer 3 and the peeling portion 5 is provided, and the second pressure-sensitive adhesive layer 4 is bonded to the building floor F, and the peeling portion 5 is removed to remove the first pressure-sensitive adhesive material. Since the layer 3 is used in a state exposed to the outside, the first pressure-sensitive adhesive layer 3 has a dust removal function, and the second pressure-sensitive adhesive layer 4 has a function of directly bonding to the building floor surface F. By providing these functions with the dustproof pressure-sensitive adhesive sheet 1, the level difference from the surrounding building floor surface F can be greatly reduced. In addition, the second adhesive material layer 4 is directly adhered to the building floor F, and the first adhesive material layer 3 absorbs dust and dirt adhering to the footwear and tires of the transporting machine, thereby removing the transporting machine. The occurrence of a problem that the dustproof pressure-sensitive adhesive sheet 1 is peeled off when a heavy machine such as the above passes through is difficult to occur. That is, such a dustproof pressure-sensitive adhesive sheet 1 can be laid at an entrance through which a heavy machine passes.

  Moreover, since such a dustproof pressure-sensitive adhesive sheet 1 is supplied in a state of being wound around the unwinding core material C1, the laying operation can be easily performed through the laying device 10 as described above.

  Further, since the adhesive strength of the first adhesive material layer 3 exceeds the adhesive strength of the second adhesive material layer 4, dust and dust are more completely adsorbed by the first adhesive material layer 3 exposed to the outside. The second adhesive material layer 4 that adheres to the building floor surface F can be easily removed by removing it from the building floor surface F. That is, both dustproof performance and ease of replacement work can be achieved.

  In addition, the pressure-sensitive adhesive is applied in a striped pattern to form the second pressure-sensitive adhesive layer 4, and a predetermined width dimension, for example, a width dimension of about 4 mm is provided on the surface on the second pressure-sensitive adhesive layer 4 side. Since the ventilation groove 4m which is a part which has and does not apply an adhesive is formed, when the second adhesive material layer 4 is applied to the building floor surface F, bubbles are formed on the second adhesive material layer 4 and the building floor. It is possible to prevent the occurrence of a problem of being confined between the surface F. Such an effect can also be obtained by coating the pressure-sensitive adhesive in a lattice shape to form the second pressure-sensitive adhesive layer 4 and forming the ventilation grooves 4m as described above in a lattice shape.

  Moreover, since the base material 2 is formed of an unstretched olefin-based sheet, the dust-proof pressure-sensitive adhesive sheet 1 is squeezed or damaged when passing over the dust-proof pressure-sensitive adhesive sheet 1. The volume of the sound can be suppressed.

  And since corona discharge machining is performed in advance on both surfaces of the olefin-based sheet and the olefin-based sheet is used as the base material 2, an adhesive material is adhered to both surfaces of the base material 2, and the first adhesive material layer 3 and the second adhesive material layer 4 can be easily formed, and thus the dust-proof adhesive sheet 1 can be easily and inexpensively formed.

  In addition, since the first pressure-sensitive adhesive layer 3 and the second pressure-sensitive adhesive layer 4 are formed by attaching an acrylic pressure-sensitive adhesive material to both surfaces of the base material 2, a chemical agent is formed on the dust-proof pressure-sensitive adhesive sheet 1. Even if it adheres, it is difficult to peel off, and can be suitably used particularly for a chemical factory.

  The present invention is not limited to the embodiment described above.

  For example, instead of the method using the laying apparatus described above, a dust-proof adhesive sheet that has been cut in advance and from which the release layer has been removed is manually applied to a desired region, or wound around the unwinding core material C1. It is possible to adopt a method of sticking while pressing toward the building floor surface F in the form of a sheet roll, and peeling off the building floor surface F so that the person performing the removal work pulls up the dust-proof adhesive sheet. Of course, the removal operation may be performed manually. In the above-described embodiment, the laying device includes only a sheet laying unit that supplies a new dustproof pressure-sensitive adhesive sheet, and separately removes the dustproof pressure-sensitive adhesive sheet from which sufficient adsorbing power cannot be obtained. You may prepare a removal apparatus provided with only a removal part separately. In addition, it may be supplied in a state of being cut into a rectangular sheet in advance, for example, instead of being wound around the unwinding core material.

  Furthermore, contrary to the above-described embodiment, the first adhesive material layer 3 side having higher adhesive strength is adhered to the building floor surface F to make it difficult to peel off from the building floor surface F, and the second adhesive having lower adhesive strength. You may select the aspect which exposes the material layer 4 side outside, and can walk on the dust-proof adhesive sheet more smoothly.

  When realizing such an aspect, as shown in the imaginary line of FIG. 5, the sheet roll 1 is disposed in the reverse direction on the sheet laying portion 101 of the laying device 10 in the above-described embodiment, and the peeling portion 5 is previously provided. The dust-proof pressure-sensitive adhesive sheet 1 may be laid after peeling off the first pressure-sensitive adhesive layer and winding the peeling portion 5 around the peeling portion winding portion 1014. In this embodiment, if the first adhesive layer 3 is also formed by applying an adhesive material in a grid or stripe pattern, the dust-proof adhesive sheet 1 can be easily peeled off and air bubbles are formed in the dust-proof adhesive sheet 1. It is possible to prevent the occurrence of problems that are trapped between the building floor F and the building floor F.

  In addition, the adhesive material forming the first adhesive material layer 3 and the second adhesive material layer 4 is not the acrylic adhesive material employed in the above-described embodiment, but a rubber adhesive material, an acrylic rubber adhesive material, or the like. Other adhesive materials may be employed. Moreover, you may form the 1st adhesive material layer 3 and the 2nd adhesive material layer 4 using a respectively different adhesive material.

  On the other hand, you may form the base material 2 with the olefin type sheet | seat which gave the extending | stretching process previously. If comprised in this way, a firmness can be given to a base material. Furthermore, you may form a base material using materials other than olefin resin, such as polyester resin and paper.

  Moreover, as shown in a sectional view in FIG. 6, the conductive layer 9 may be formed by evaporating a conductive material typified by a metal such as aluminum or copper on the substrate 2. The dustproof pressure-sensitive adhesive sheet 10 having such a conductive layer 9 is less likely to be charged, and thus can be suitably used in an environment such as a semiconductor factory that dislikes the presence of static electricity. Even if the base material itself is formed of a conductive material typified by conductive plastic or metal, such a sheet is difficult to be charged. It can be suitably used for the environment.

  Further, instead of the base material formed by performing corona discharge machining on both surfaces of the resin sheet in advance, a material obtained by performing plasma discharge machining on both surfaces of the resin sheet in advance may be used as the substrate. Even if it is such a structure, it can make it easier to make an adhesive material adhere to both surfaces of this base material compared with what does not give such electric discharge machining.

  Furthermore, printing is performed on the base material 2 formed by performing corona discharge processing or plasma discharge processing in advance on both surfaces of the resin sheet, and the first adhesive material layer is disposed adjacent to one surface of the base material. You may make it each provide a 2nd adhesive material layer adjacent to the other surface of a base material.

  As the dustproof pressure-sensitive adhesive sheet thus formed, for example, as schematically shown in FIG. 7, a guide for guiding an emergency exit, a restricted area, or a line for each product to a person who passes on the dustproof pressure-sensitive adhesive sheet. Examples include first to fifth printed dustproof pressure-sensitive adhesive sheets 1a to 1e, which are dustproof pressure-sensitive adhesive sheets provided with the portions 8a to 8e, respectively. If such guide portions 8a to 8e are provided, a function of guiding a passerby can be added. As a specific example of the guide part, a combination of the letters “emergency exit” and an arrow pointing in the direction of the emergency exit as provided in the first printed dustproof pressure-sensitive adhesive sheet 1a shown in FIG. A guide portion 8b that combines the characters "no entry" and a line indicating the boundary of the no entry area, as provided on the portion 8a, the second printed dust-proof adhesive sheet 1b shown in FIG. Conceivable. Furthermore, the color corresponding to each medical subject if it is used in each product or hospital as provided in the third to fifth printed dustproof pressure-sensitive adhesive sheets 1c to 1e shown in FIG. Guide portions 8c to 8e formed by printing a line having a line are also conceivable. That is, the third printed dustproof pressure-sensitive adhesive sheet 1c is printed with a color line corresponding to the first product or medical department to form the guide portion 8c, and the fourth and fifth printed dustproof pressure-sensitive adhesive sheets 1d. 1e is printed with a color line corresponding to the second product or medical department to form guide portions 8d and 8e, respectively, and the third printed on the line connecting the entrance and the first product line or medical department A mode is also conceivable in which the fourth and fifth printed dustproof pressure-sensitive adhesive sheets 1d and 1e are arranged on the line connecting the dustproof pressure-sensitive adhesive sheet 1c and the entrance to the second product line or the department. In addition, when using a transparent base material, you may make it print on the to-be-adhered surface side so that the malfunction which prints may peel off may not occur easily. As a printing method, for example, gravure printing or the like can be considered. On the other hand, any material can be used as long as it can print on the resin sheet. Furthermore, a mode is also conceivable in which a base material is formed using a sheet colored by performing a coloring process by a method other than printing on a resin sheet, for example, a method of mixing a dye into a raw material. In such an embodiment, since the entire dustproof pressure-sensitive adhesive sheet is uniformly colored in the color of the previously mixed dye, for example, on the line connecting the entrance and each product line or department, the corresponding color Guidance can be performed by arranging a dustproof pressure-sensitive adhesive sheet. And as a material of the base material of such a sheet | seat, of course, an olefin resin, a polyester-type resin, etc. can be variously selected.

  In addition, as shown in FIG. 8, not only the building floor surface F but also the wall surface W adjacent to the building floor surface F is used as an adherend, and such an adherend also has a dustproof pressure-sensitive adhesive sheet 1 according to the present invention. By sticking, dust and dust scattered to the side can be adsorbed and removed. Further, although not shown in the drawings, the inner surface of machinery or the surface of the installation base of machinery is used as an object to be adhered, and the dust-proof adhesive sheet according to the present invention is attached to such an object to be adhered. It is also possible to prevent dust and dust scattered around the machinery by adsorbing dust and dust scattered from the machine.

  In addition, various changes may be made without departing from the spirit of the present invention.

Schematic which shows the dust-proof adhesive sheet which concerns on one Embodiment of this invention. Sectional drawing which shows the dust-proof adhesive sheet which concerns on the same embodiment. Sectional drawing which shows the laying state of the dust-proof adhesive sheet which concerns on the same embodiment. The figure which shows the coating aspect of the 2nd adhesive material layer of the adhesive sheet for dust prevention which concerns on the same embodiment. Schematic which shows the laying apparatus which concerns on the same embodiment. Sectional drawing which shows the dust-proof adhesive sheet which concerns on the other embodiment of this invention. Schematic which shows the dust-proof adhesive sheet which concerns on the other embodiment of this invention. Schematic which shows the dust-proof adhesive sheet which concerns on the other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 10 ... Dust-proof adhesive sheet 1a-1e ... Printed dust-proof adhesive sheet (dust-proof adhesive sheet)
DESCRIPTION OF SYMBOLS 2 ... Base material 3 ... 1st adhesive material layer 4 ... 2nd adhesive material layer 5 ... Peeling part 9 ... Conductive layer C1 ... Unwinding core material F ... Building floor surface (to-be-adhered object)
W… Wall (adhered object)

Claims (11)

A sheet-like base material formed of an olefin-based resin; a first adhesive material layer adjacent to one surface of the base material; a second adhesive material layer adjacent to the other surface of the base material; The first adhesive material layer or the second adhesive material layer has a peeling portion adjacent to the surface on the opposite side of the base material, the peeling portion is removed, and the first adhesive material layer or the second adhesive material layer A dustproof pressure-sensitive adhesive sheet, wherein the pressure-sensitive adhesive layer on the side exposed to the outside has a dust removal function in a state where one is exposed to the outside and the other is adhered to the building floor. A sheet-like base material, a first adhesive material layer adjacent to one surface of the base material, a second adhesive material layer adjacent to the other surface of the base material, the first adhesive material layer or the first 2 having a peeling part adjacent to the surface opposite to the base material of the adhesive layer, removing the peeling part, and exposing one of the first adhesive material layer and the second adhesive material layer to the outside A dustproof pressure-sensitive adhesive sheet, wherein the pressure-sensitive adhesive layer on the side exposed to the outside has a dust removal function in a state of being adhered to an adherend that is a target to be adhered. The pressure-sensitive adhesive sheet for dust prevention according to claim 1 or 2, wherein the pressure-sensitive adhesive strength of the first pressure-sensitive adhesive layer and the pressure-sensitive adhesive strength of the second pressure-sensitive adhesive layer are different. 4. The dustproof pressure-sensitive adhesive sheet according to claim 3, wherein at least one of the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer is formed by applying a pressure-sensitive adhesive material in a slanted line shape or a lattice shape. The dustproof pressure-sensitive adhesive sheet according to claim 1, 2, 3, or 4, wherein the base material is formed using an unstretched olefin-based sheet. 6. The dustproof pressure-sensitive adhesive sheet according to claim 1, wherein the base material is formed using an olefin-based sheet that has been subjected to corona discharge machining on both sides in advance. 7. The dustproof pressure-sensitive adhesive sheet according to claim 6, wherein the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer are formed using an acrylic pressure-sensitive adhesive material. The dustproof pressure-sensitive adhesive sheet according to claim 1, wherein the dustproof pressure-sensitive adhesive sheet is supplied in a state of being wound around an unwinding core material. 9. The dustproof pressure-sensitive adhesive sheet according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the base material is a sheet-like material which is printed or colored on at least one side. The dustproof pressure-sensitive adhesive sheet according to claim 1, further comprising a conductive layer having conductivity. 10. The dustproof pressure-sensitive adhesive sheet according to claim 1, wherein the base material is formed of a conductive material.

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