JP2796522B2 - Easy-cut lamination adhesive tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easy-cut lamination adhesive tape.

[0002]

2. Description of the Related Art Conventionally, as an adhesive tape for packing, for example, an adhesive layer is coated on a back surface of a paper whose surface is release-treated, and an adhesive layer is coated on a back surface of a woven fabric whose surface is release-treated. Things are known. Such a pressure-sensitive adhesive tape for packing can be easily cut by hand because the base material is paper or woven fabric. However, these packaging adhesive tapes are not suitable for printing characters, patterns, etc. because they use brown paper or woven fabric.

On the other hand, a transparent film was used as a substrate,
A so-called cellotape roll is known. However, since it is difficult to cut a cellophane tape easily by hand, it is necessary to attach a cutting tool to the cellophane tape roll. In addition, since the cellophane tape roll is made of a single-layer transparent film, there is a problem that even if characters and patterns are printed, the color of the member to be adhered becomes a background and characters and the like cannot be displayed well.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides an easy hand-cut laminating adhesive which can be easily cut by hand and can display characters, patterns and the like satisfactorily with an inner layer film having a hiding property as a background. Try to provide tape.

Another object of the present invention is to provide an easily hand-cut laminated adhesive tape having an unauthorized opening prevention function.

It is another object of the present invention to provide an easy-to-cut lamination adhesive tape which allows characters and patterns to be easily written with a magic pen or the like.

[0007]

The easy-cutting laminated pressure-sensitive adhesive tape according to the present invention comprises a laminated film obtained by laminating an outer layer film made of a rigid organic resin on an inner layer film having a concealing property via an adhesive layer; A pressure-sensitive adhesive layer formed on the surface of the inner layer film of the laminated film, wherein the outer layer film is provided with a desired print on the back surface on the adhesive layer side, and has an average opening diameter of 0.5 to 100 μm. A large number of fine through holes are formed at a density of 1000 / cm ² or more. Another easy-cut lamination adhesive tape according to the present invention is a laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer, and an inner layer film of the laminated film. Pressure-sensitive adhesive layer formed on the surface, the inner layer film is a fine hollow organic resin film in which a white pigment is dispersed, and the outer layer film has a desired printing on the back surface on the side of the adhesive layer. And the average opening
1000 fine through holes with a diameter of 0.5 to 100 μm /
characterized by being formed in large numbers with a density of at least cm ²
Things.

[0008] Still another easy-cutting laminated pressure-sensitive adhesive tape according to the present invention is a laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer; And a pressure-sensitive adhesive layer formed on the surface of the inner layer film, wherein the laminated film has an average opening diameter of 0. 4 communicating between the surface of the outer layer film and the surface of the inner layer film on which the pressure-sensitive adhesive layer is formed. A large number of fine holes of 5 to 100 μm are formed at a density of 1000 / cm ² or more. Still another easily cutable laminated pressure-sensitive adhesive tape according to the present invention is a laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer, and an inner layer film of the laminated film An adhesive layer formed on the surface of the, the inner layer film,
A white pigment-dispersed fine hollow organic resin film, and the laminated film has an average opening diameter of 0.5 communicating between the surface of the outer layer film and the surface of the inner layer film on which the adhesive layer is formed. ~ 100μm fine hole
Are formed at a density of 1000 / cm ² or more .

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an easily cut-off laminated adhesive tape according to the present invention will be described in detail.

[0010] This easy-cut lamination adhesive tape is a laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer,
It has a structure in which a sheet having an adhesive layer formed on the surface of an inner layer film of the laminated film is wound around, for example, a paper core tube. The outer layer film has a desired print on the back surface on the adhesive layer side and has a large number of fine through holes.

Examples of the inner layer film having a hiding property include a plastic film or paper in which a white pigment or a chromatic inorganic pigment is dispersed.

Examples of the white pigment include titanium dioxide fine powder, zinc oxide fine powder, lithopone, calcium carbonate fine powder, and antimony oxide fine powder.

Examples of the chromatic inorganic pigments include iron oxide fine powder, lead molybdate orange, navy blue and the like.

In particular, a laminated adhesive tape having a fine hollow organic resin film in which a white pigment or a chromatic inorganic pigment is dispersed (for example, Pearl and Chris Bar manufactured by Toyobo Co., Ltd.) as an inner film is a cardboard box for packing. When peeling after sticking to a member to be stuck as described above, interfacial peeling occurs at the inner layer film portion.

Examples of the rigid organic resin include polyethylene terephthalate (PET), nylon and oriented polypropylene film. The outer layer film made of such an organic resin preferably has a thickness of 6 μm or more from the viewpoint that a large number of fine through-holes are formed and a property of easily tearing is provided. The upper limit thickness is not particularly limited, but is preferably 30 μm or less from the viewpoint of cost.

The large number of through holes opened in the outer layer film have an average opening diameter of 0.5 to 100 μm and a density of 100
It is preferable to set the number to 0 / cm ² or more. The outer layer film having the through holes having such an average opening diameter and density has a tear strength sufficiently lower than the tear strength of the outer layer film in a non-porous state, for example, 0.35 times or less. Shows a higher tearing property than the outer layer film.

The reason why the average opening diameter of the through-hole of the outer layer film is specified is as follows. If the average opening diameter is less than 0.5 μm, it may be difficult to easily cut the laminated adhesive tape having the outer layer film by hand. On the other hand, when the average opening diameter is 100
If it exceeds μm, printability on the back surface (adhesive forming surface) of the outer layer film may be impaired. More preferably, the average opening diameter of the through-hole is 5 to 80 μm.

The reason why the pore density of the outer layer film is specified is as follows. The pore density is 1
If the number is less than 000 pieces / cm ^2, it may be difficult to easily cut the laminated adhesive tape having the outer layer film by hand. The upper limit of the pore density is not particularly limited. However, a single processing by a porous film manufacturing apparatus for forming a through-hole, which will be described later, requires 25,000 pieces / process.
A pore density of cm ² can be achieved. More preferably, the hole formation density is 1000 holes / cm ^{2 to} 5000 holes / cm ^2.
2

The outer layer film is preferably treated with a release agent on its surface (the surface opposite to the adhesive layer) so as to be easily peeled off from the pressure-sensitive adhesive layer when wound on a roll. . As the release agent, for example, a silicone resin, a stearate such as zinc stearate, calcium stearate, and magnesium stearate can be used.

The adhesive interposed between the outer layer film and the inner layer film is not particularly limited. For example, an adhesive mainly composed of a polyester urethane resin or a polyether urethane resin can be used.

The pressure-sensitive adhesive formed on the surface of the inner layer film on the side opposite to the adhesive layer is not particularly limited. For example, a rubber-based, vinyl ether-based, or silicon-based pressure-sensitive adhesive can be used.

The easy-cut lamination adhesive tape according to the present invention is produced, for example, by the following method.

That is, Mohs hardness 5 having sharp corners
Disposing the first roll having a large number of particles attached to the surface thereof and the second roll having a smooth surface facing each other; rotating the first and second rolls in opposite directions to each other, The surface between the second roll is treated with a release agent, desired characters, a pattern or the like is printed on the back surface, while passing through a long outer layer film made of a rigid organic resin and passing between the rolls By adjusting the pressing force on the long outer layer film to be uniform over the entire film surface in contact with each of the rolls, sharp corners of a large number of particles on the first roll surface are removed from the long outer layer. Forming a plurality of fine through-holes on the entire surface of the long outer layer film by applying an adhesive for dry lamination to the back surface (printing surface) of the long outer layer film; and drying; Film adhesive A step of laminating a long inner layer film having a concealing property on a cloth surface and then heating and laminating these films to form a long laminated film; covering the inner layer film of the long laminated film with an adhesive; Forming a pressure-sensitive adhesive layer, and winding the long laminated film with the pressure-sensitive adhesive layer around a core tube, and then cutting the rolled material to a desired width to produce an easily hand-cut laminated adhesive tape. I do.

The first roll comprises a metal roll body,
The surface of the roll body has a large number of particles having a Mohs hardness of 5 or more having sharp corners adhered to the surface of the roll body by, for example, an electrodeposition method or an adhesion method using an organic or inorganic binder. The number of particles is 7 on the surface of the first block.
It is desirable to make 0% or more adhere.

The metal roll body is made of, for example, iron or an iron alloy. The roll body may be made of iron or an iron alloy, and may have a surface coated with a nickel plating layer or a chromium plating layer.

The particles having a Mohs hardness of 5 or more include, for example, cemented carbide particles such as tungsten carbide, silicon carbide particles, boron carbide particles, sapphire particles, cubic boron nitride (CBN) particles, and natural or synthetic particles. Examples include diamond particles. In particular, synthetic diamond particles having high hardness and strength are desirable. It is desirable to use particles having a particle size of 10 to 100 μm and a variation of the particle size of 5% or less.

In particular, when diamond particles are used as a large number of particles having a Mohs' hardness of 5 or more, it is preferable that the diamond particles be attached to the surface of the roll body by electrodeposition. The adhesion of the diamond particles to the roll body by the electrodeposition includes a step of degreasing the roll body, a step of masking an end or a shaft of the surface of the roll body, a step of degreasing and washing with water, Pickling, washing with water, forming a hard plating layer mainly composed of, for example, nickel on the exposed surface of the roll body, and temporarily attaching a large number of diamond particles to the hard plating layer; A step of applying hard plating so that the sharp corners of the diamond particles sufficiently project on the hard plating layer portion to fix the diamond particles to the roll body, and a step of removing the masking material. It is done by the method. In the electrodeposition, it is desirable to form a Ni layer and a Cr layer on the surface of the roll body in advance by a plating technique or the like.
By employing such electrodeposition, the diamond particles can be extremely firmly adhered to the roll body surface.

The second roll may be, for example, an iron roll, an iron-based alloy roll, an iron roll having a Ni-plated or Cr-plated surface, a stainless steel roll, or a polymer roll layer on the entire surface of a metal roll body. Coated ones can be used. As the polymer resin, various resins can be used. In particular, urethane resin, silicon rubber, fluorine rubber, and the like having a high buffering action on the long organic resin film are preferable.

The perforation of the through-hole into the long outer layer film made of the rigid organic resin is performed by adjusting the pressing force on the long outer layer film passing between the first and second rolls. Achieved.

The easy-cutting laminated pressure-sensitive adhesive tape according to the present invention described above comprises a laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer; A pressure-sensitive adhesive layer formed on the surface of the inner layer film, wherein the outer layer film is provided with a desired print on the back surface of the adhesive layer side,
In addition, it has a large number of fine through holes and has, for example, a roll shape wound around a core tube. In such an adhesive tape,
Grasping the roll with one hand and pinching the tape pulled out from the roll with thumb and forefinger, and picking the tape pulled out with thumb and forefinger of the other hand and pulling in the width direction of the tape, the adhesive Since many fine through-holes are formed in the outer layer film constituting the tape, and these through-holes act as tearing starting points (rupture starting points),
It can be easily cut in the width direction. Therefore, the laminated pressure-sensitive adhesive tape of the present invention has good hand-cutting properties, and since the tape itself attached to the adhered member such as packed cardboard has characters and patterns attached thereto, it is a simple packaging material for department stores and the like. It can be used for tying tape of vegetables and the like.

An easily cut lamination adhesive tape having a fine hollow organic resin film in which a white pigment or a chromatic inorganic pigment is dispersed as an inner layer film having a concealing property is used for an adhered member such as a packed cardboard box. When peeling after adhering to the inner layer, interfacial peeling occurs at the inner layer film portion. As a result, even if the laminated adhesive tape of the packed cardboard box is peeled off and attempted to be opened without permission, the inner layer film remains on the surface of the opened cardboard box. Therefore, even if the adhesive tape is again adhered to the peeled cardboard box surface, the state of the unsealed opening can be easily confirmed by the remaining inner layer film. From the above, the easy-cutting laminated adhesive tape of the present invention can be effectively used as a sealing tape for the purpose of preventing unauthorized opening or reopening.

Next, another easily cuttable laminated adhesive tape according to the present invention will be described in detail.

This easy-cut lamination adhesive tape is composed of a laminated film in which an outer layer film made of a rigid polymer resin is laminated on an inner layer film having a concealing property via an adhesive layer, and a surface of the inner layer film of the laminated film. The sheet provided with the pressure-sensitive adhesive layer formed as described above is wound around, for example, a paper core tube. Further, the laminated film has a large number of fine holes communicating between the surface of the outer layer film and the surface of the inner layer film on which the pressure-sensitive adhesive layer is formed.

Examples of the inner layer film having the concealing property include a plastic film or paper in which the above-mentioned white pigment or chromatic inorganic pigment is dispersed.

In particular, a laminated adhesive tape having a fine hollow organic resin film in which a white pigment or a chromatic inorganic pigment is dispersed (for example, Pearl or Chris Bar manufactured by Toyobo Co., Ltd.) as an inner layer film is a cardboard box for packing. When peeling after sticking to a member to be stuck as described above, interfacial peeling occurs at the inner layer film portion.

Examples of the rigid organic resin include polyethylene terephthalate (PET), nylon and oriented polypropylene film. The outer layer film made of such an organic resin preferably has a thickness of 6 μm or more from the viewpoint that a large number of fine through-holes are formed and a property of easily tearing is provided. The upper limit thickness is not particularly limited, but is preferably 30 μm or less from the viewpoint of cost.

The outer layer film is preferably treated with a release agent on its surface (the surface opposite to the adhesive layer) so as to be easily peeled off from the pressure-sensitive adhesive layer when wound on a roll. . As the release agent, for example, a silicone resin, a stearate such as zinc stearate, calcium stearate, and magnesium stearate can be used.

The outer layer film permits printing (back printing) on the surface on the side of the adhesive layer.

In the laminated film, a large number of fine holes communicating between the surface of the outer layer film and the surface of the inner layer film on which the pressure-sensitive adhesive layer is formed may be, for example, (a)
(B) a large number of fine through holes are opened in the outer layer film, and a large number of holes extending from the surface of the inner layer film on the side of the adhesive layer to the outer layer film through the adhesive layer. The through-hole may be opened, and a part or all of the non-through-hole may be connected to the through-hole at the outer layer film portion.

The fine pores have an average opening diameter of 0.5 μm or more and a density of 1000 /
It is preferably set to not less than cm ² .

The reason for defining the average opening diameter of the holes on the outer layer film side is as follows. If the average opening diameter is less than 0.5 μm, it may be difficult to easily cut the laminated adhesive tape having the laminated film by hand. The upper limit of the average opening diameter is preferably set to 100 μm. More preferably, the average opening diameter of the fine holes is from 5 to 80 μm.

The reason for defining the hole density on the outer layer film side is as follows. The pore density is 1
When the number is less than 000 pieces / cm ^2, it may be difficult to easily cut the laminated adhesive tape having the laminated film by hand. The upper limit of the pore density is not particularly limited. However, a single processing by a porous film manufacturing apparatus for forming a through-hole, which will be described later, requires 25,000 pieces / process.
A pore density of cm ² can be achieved. More preferably, the hole formation density is 1000 holes / cm ^{2 to} 5000 holes / cm ^2.
2

The adhesive interposed between the outer layer film and the inner layer film is not particularly limited. For example, an adhesive mainly composed of a polyester urethane resin or a polyether urethane resin can be used.

The pressure-sensitive adhesive formed on the surface of the inner layer film opposite to the adhesive layer is not particularly limited. For example, a rubber-based, vinyl ether-based, or silicon-based pressure-sensitive adhesive can be used.

Another easy-cut lamination adhesive tape according to the present invention is produced, for example, by the following method.

That is, Mohs hardness 5 having sharp corners
Disposing the first roll having a large number of particles attached to the surface thereof and the second roll having a smooth surface facing each other; rotating the first and second rolls in opposite directions to each other, Between the second roll, the front surface is treated with a release agent, and if necessary, a desired character, a pattern, etc. are passed through the long outer layer film made of an organic resin having rigidity on which the desired characters and patterns are printed. By adjusting the pressing force on the long outer layer film passing between the rolls so as to be uniform over the entire film surface in contact with each of the rolls, sharp corners of a large number of particles on the first roll surface are reduced. A step of forming a large number of fine through-holes on the entire surface by biting into the long outer layer film; a step of applying a dry laminating adhesive to the back surface of the long outer layer film and drying; and a step of drying the long outer layer film Adhesive coating A step of forming a long laminated film by laminating these films by pressurizing and heating them after laminating a long inner layer film having a concealing property on the surface; the first and second films having the same structure as described above. The long laminated film is passed between the rolls, and the pressing force on the long laminated film passing between the rolls is adjusted so as to be uniform over the entire film surface in contact with each roll. Thus, the sharp corners of a large number of particles on the surface of the first roll are bitten from the inner layer film side of the long laminated film, and a large number of fine non-through holes connected to some or all of the through holes of the outer layer film are formed. Forming a pressure-sensitive adhesive layer on the inner layer film of the long laminated film to form a pressure-sensitive adhesive layer; and winding the long laminated film with the pressure-sensitive adhesive layer around a core tube. Step of cutting to a width of Nozomu; by producing Ekite Setsusei laminated adhesive tape.

Another easily cuttable laminated pressure-sensitive adhesive tape according to the present invention described above is a laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer. With an adhesive layer formed on the surface of the inner layer film of the laminated film, having a number of fine holes communicating between the surface of the outer layer film and the surface of the inner layer film on which the adhesive layer is formed. For example, it has a roll shape wound around a core tube. In such an adhesive tape, while grasping the roll with one hand, the tape pulled out from the roll is pinched with a thumb and forefinger, and the tape pulled out with the thumb and forefinger of the other hand is pinched to width of the tape. When pulled in the direction, a large number of fine holes communicating between the surface of the outer layer film and the surface on which the pressure-sensitive adhesive layer of the inner layer film is formed are formed in the laminated film constituting the pressure-sensitive adhesive tape, and a large number of these holes are formed. Since the fine holes act as tearing starting points (rupture starting points), they can be easily cut in the width direction.

Further, another easily cuttable laminated pressure-sensitive adhesive tape according to the present invention is a laminated tape having a large number of fine holes communicating between the surface of the outer layer film and the surface of the inner layer film on which the pressure-sensitive adhesive layer is formed. Since the film is provided, when the tape or the like is stuck to a member to be stuck such as a packed cardboard box and letters or the like are written on an outer layer film on the front surface side with a magic pen or the like, the ink has a large number of fine particles. It penetrates through the holes into the pressure-sensitive adhesive layer below and is fixed. As a result, characters and the like can be easily written with a magic pen or the like, and clear characters can be displayed on the tape without blurring the characters and the like even when the finger touches the tape surface after writing.

Therefore, the easy-cutting laminated adhesive tape of the present invention has good hand-cutting properties and can write characters and patterns on the tape itself attached to the adhered member such as a packed cardboard box. It can be used for simple packaging materials. In addition, by applying back printing of the address to the outer layer film, the easy-cutting laminated adhesive tape can be used for address writing paper such as Takkyubin.

Further, an easy-to-cut lamination adhesive tape comprising a fine hollow organic resin film in which a white pigment or a chromatic inorganic pigment is dispersed as an inner layer film having concealing properties,
When peeling after sticking to a sticking member such as a packed cardboard box, interfacial peeling occurs at the inner layer film portion.
As a result, even if the laminated adhesive tape of the packed cardboard box is peeled off and attempted to be opened without permission, the inner layer film remains on the surface of the opened cardboard box. Therefore, even if the adhesive tape is again adhered to the peeled cardboard box surface, it is possible to easily confirm the state of the unsealed opening. From the above, the easy-cutting laminated adhesive tape of the present invention can be effectively used as a sealing tape for the purpose of preventing unauthorized opening or reopening.

[0051]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a front view showing a main part of a porous forming apparatus used in this embodiment, FIG. 2 is a side view showing a main part of the porous forming apparatus shown in FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along a line, and FIG. 4 is a cross-sectional view of a main part of the porous device of FIG.

In the figure, reference numeral 101 denotes a bed. A table 102 is provided on the upper surface of the bed 101 except for the vicinity of the right end. On the table 102, two key-shaped frames 103 are installed at predetermined intervals in the width direction of the table 102. The frame 103 includes a lower plate 103a, a side plate 103b, and an upper plate 1
03c. Near the center of the side plate 103b of each frame 103, a first
Boxes 105 are respectively fixed. A first roll 106 is arranged between the frames 103. As shown in FIGS. 2 and 4, the first roll 106 has a large number of particles (e.g., synthetic diamond particles) 107 having a sharp corner and a Mohs hardness of 5 or more on the surface.
It is composed of an iron roll body 108 electrodeposited through the electrodeposition layer 108a at the above-mentioned area ratio, and shafts 109 penetrating the center of the body 108 and projecting from both end surfaces of the body 108. . Both protruding ends of the shaft 109
The first box 105 is supported by bearings 104 in the first box 105, respectively. A shaft 109 on one end side (for example, a left end side) of the first roll 106 penetrates the box 105, and a gear 111 that meshes with a gear of a drive shaft of a motor (not shown) is provided on a protruding portion of the shaft 109. Axle-mounted. Therefore, the first roll 106 is rotated, for example, clockwise by driving the motor. Further, a gear 110 is axially mounted on a protruding portion of the shaft 109 located between the gear 111 and the left side surface of the box 105.

Rails 112 and 113 are formed on the side plate 103b of each frame 103 located below and above the first box 105, respectively.
As shown in FIG. 3, a slider 114 (the other slider is not shown) is arranged on each of the lower rails 112 so as to be vertically movable. Each of the sliders 11
4, second boxes 116 each having a built-in bearing 115 are fixed, and can move up and down along the rails 112. A second roll 117 is arranged between the frames 103 so as to face each other so as to be located below the first roll 106. The second roll 117 includes a hard roll body 118 made of, for example, steel.
And a shaft 119 that penetrates the center of the main body 118 and protrudes from both end surfaces of the main body 118.
Both protruding ends of the shaft 119 are connected to the second box 1.
16 are respectively supported by bearings 115. A shaft 119 at one end (for example, the left end) of the second roll 117 protrudes through the second box 116, and the protrusion of the shaft 119 includes the first roll 1.
A gear 120 meshing with the gear 110 of the shaft 109 is mounted on the shaft. Therefore, the second roll 117 is vertically movably arranged along the rail 112 by the second box 116 and the slider 114. Further, the shaft 109 of the first roll 106 is driven by the motor.
By rotating clockwise, the shaft 109 is rotated.
The shaft 119 having the gear 120 meshing with the gear 110 rotates counterclockwise, and consequently the second
The roll 117 rotates in a counterclockwise direction.

As shown in FIG. 3, a slider 121 (the other slider is not shown) is disposed on each of the upper rails 113 so as to be vertically movable. A third box 123 containing a bearing 122 is fixed to each of the sliders 121 so as to be able to move up and down along the rail 113. In addition, a third roll 124 is provided between the respective frames 103 by the first roll 10.
6 so as to face each other. The third roll 124 is, for example, an iron roll body 1 having a surface coated with a polymer resin layer 125 such as urethane resin.
26 and the main body 12 through the center of the main body 126.
6 and a shaft 127 protruding from both end surfaces. Both protruding ends of the shaft 127 are supported by bearings 122 in the third box 123, respectively. The shaft 12 on one end side (for example, the left end side) of the third roll 124
The seven parts protrude through the third box 123, and a gear 128 that meshes with the gear 110 of the shaft 109 of the first roll 106 is mounted on the protruding part of the shaft 127. Therefore, the third roll 124 is arranged to be vertically movable along the rail 113 by the third box 123 and the slider 121. Further, the shaft 109 of the first roll 106 is driven by the motor.
By rotating clockwise, the shaft 109 is rotated.
The shaft 127 having the gear 128 meshing with the gear 110 rotates counterclockwise, and consequently the third gear
The roll 124 rotates counterclockwise.

The two frames 103, the two first boxes 105, the first roll 106, the two sliders 112 and 113, the two second boxes 116, the second roll 117, and the two The three boxes 123 and the third roll 124 constitute a perforation unit 129.

On the lower wall of the two second boxes 116, a cylindrical body 13 having upper and lower flanges 130 and 131 is provided.
2 are arranged respectively. Each said cylindrical body 132,
As shown in FIG.
The box 116 is fixed to the second box 116 by a plurality of screws 133 screwed to the lower wall. At the lower flange 131 of each of the cylindrical bodies 132, a disk 135 having a hole 134 at the center is arranged, respectively.
Each of the disks 135 is fixed to each of the disks 135 by a plurality of screws 136 screwed to the lower flange 131. In each of the cylindrical bodies 132, a coil spring 137 is housed so as to apply an elastic force in a vertical direction. A rod 139 having a pressure sensor 138 attached to the upper end thereof is inserted into each of the cylindrical bodies 132 through a hole 134 of the disk 135.
Each of the pressure sensors 138 is in contact with the lower end of each of the coil springs 137, and can detect a pressing force on the coil spring 137 due to the rise of each of the rods 139. A disc-shaped guide 140 for smoothly moving the rod 139 up and down is attached to the rod 139 below each of the sensors 138. The lower end of each rod 139 has a ball screw 14
1 are respectively inserted. Each ball screw 1
Reference numerals 41 penetrate the lower plate 103a of the frame 103 and project into recesses (not shown) of the bed 102, respectively. In the recessed portions, casings (the other casing is not shown) 142 each containing a threaded engagement plate (not shown) are provided. The lower end protrusion of the ball screw 141 is screwed to the engagement plate in each of the casings 142. In each of the casings 142, a worm shaft (not shown) that engages with a lower end protruding portion of the ball screw 141 is inserted from the horizontal direction, and a handle is provided at one end of each of the worm shafts. (Not shown) 143 are provided. Therefore, by rotating the handle 143, the ball screw 141 that engages with the worm shaft of the handle 143 rotates, and the rod 139 into which the ball screw 141 is inserted rises (or descends). ing. In this case, when the rod 139 is lowered to a certain distance or more, the disk-shaped guide 140 attached to the rod 139 comes into contact with the inner surface of the disk 135 below the cylindrical body 132 to lower the cylindrical body 132 itself. Let it. Therefore, the second box 116 fixed to the upper end of the cylindrical body 132 is lowered by the slider 114 along the lower part 112 of the rail.

The two cylinders 132, the two disks 135, the two coil springs 137, the two pressure sensors 138, the two rods 139, the two disk guides 140, the two ball screws 14
1. A first pressure for adjusting a pressing force on a film passing between the first and second rolls 106 and 117 by the two casings 142, the two worm shafts (not shown), and the two handles 143. The adjusting means 144 is included.

The cylindrical body 14 having upper and lower flanges 145 and 146 is provided on the upper walls of the two third boxes 123.
7 are arranged respectively. Each said cylindrical body 147,
As shown in FIG.
The box 123 is fixed to the third box 123 by a plurality of screws 148 screwed to the upper wall. Disks 150 each having a hole 149 in the center are arranged on the upper flange 145 of each of the cylindrical bodies 147, respectively.
The disks 150 are respectively fixed by a plurality of screws 151 screwed from the disks 150 to the upper flange 145. In each of the cylindrical bodies 147, a coil spring 152 is housed so as to apply an elastic force in a vertical direction, and a lower end of each of the coil springs 152 is in contact with an upper wall of the third box 123, respectively. I have. In each of the cylindrical bodies 147, a rod 154 having a pressure sensor 153 attached to a lower end thereof is provided on the disk 1 respectively.
It is inserted through 50 holes 149. Each of the pressure sensors 153 is in contact with the upper end of each of the coil springs 152, and the coil springs 152
Can be detected. A disc-shaped guide 155 for smoothly moving the rod 154 up and down is provided on the rod 154 above each of the sensors 153.
Are attached. A ball screw 156 is inserted into the upper end of each rod 154. Each of the ball screws 156 passes through the upper plate 103c of the frame 103, and
Projecting upwards. On the upper surface of each of the upper plates 103c, there is provided a casing (the other casing is not shown) 157 which incorporates a threaded engaging plate (not shown). An upper end protruding portion of the ball screw 156 is screwed to the engagement plate in each of the casings 157. In each of the casings 157, a worm shaft (not shown) that engages with an upper end protruding portion of the ball screw 156 is inserted from the horizontal direction, and a handle is provided at one end of each of the worm shafts. (Not shown) 158 are provided. Accordingly, by rotating the handle 158, the ball screw 156 that engages with the worm shaft of the handle 158 rotates, and the ball screw 15
6. Lower (or ascend) the rod 154 with the inserted 6
It is supposed to. In this case, when the rod 154 is raised over a certain distance, the disc-shaped guide 155 attached to the rod 154 causes the cylindrical body 147 to move.
The cylindrical body 147 itself is raised by contacting the inner surface of the upper disk 150. For this reason, the third box 123 fixed to the lower end of the cylindrical body 147 is
1 raises along the rail 113.

The two cylinders 147, the two disks 150, the two coil springs 152, the two pressure sensors 153, the two rods 154, the two disk guides 155, and the two ball screws Fifteen
6. The second pressure for adjusting the pressing force on the film passing between the first and third rolls 106 and 124 by the two casings 157, the two worm shafts (not shown), and the two handles 158. The adjusting means 159 is constituted.

In front of the perforating unit 129, a winding roll (not shown) of a long outer layer film made of an organic resin is arranged.
60 is supplied between the first and second rolls 106 and 117 and between the first and third rolls 106 and 124 of the unit 129 via two feed rolls 161.
A static eliminator 162 is disposed downstream of the unit 129. The static electricity removing means 162 is provided on the table 102 and has a container 163 containing pure water.
And an ultrasonic wave generating member (not shown) for applying ultrasonic waves to the pure water. The unit 12
9, between the first and third rolls 106 and 124, between the first and third rolls 106 and 124. The two feed rolls 161 are arranged. In addition, a contact roll 164 is arranged on each of the two feed rolls 161 located at the front and rear stages of the container 163. A plurality of hot air jet members (not shown) for drying the film that has passed between the feed roll 161 and the contact roll 164 are disposed at a stage subsequent to the electrostatic removing unit 162.

(Embodiment 1) The first and second rolls 1 of the perforating unit 129 in the perforating apparatus having the above-described structure.
A porous long sheet obtained by passing through a long outer layer film made of polyethylene terephthalate (PET) having a front surface treated with a release agent between 06 and 117 and characters and patterns printed on the back surface is printed. A long inner layer film consisting of a fine hollow organic resin film (trade name, manufactured by Toyobo Co., Ltd.) in which fine powder of titanium dioxide is dispersed is adhered to the back side of the outer layer film, and an adhesive layer is further formed to easily cut it. A method for producing a functional laminated pressure-sensitive adhesive tape will be described with reference to a dry laminating apparatus shown in FIGS. 1 to 4 and 5.

First, by rotating the two handles 143 of the first pressure adjusting means 144 in, for example, a counterclockwise direction, each second box 116 of the drilling unit 129 connected to the upper end of each cylindrical body 132 is moved to the slider. 114
To move down along each rail 112 of each frame 103 so that the bearing 11 in each second box 116
5 is separated from the first roll 106 on the second roll 117 at a sufficient interval. Further, by rotating the two handles 158 of the second pressure adjusting means 159, for example, clockwise, each third box 123 connected to the lower end of each cylindrical body 147 is moved to the slider 121.
To raise each bearing along each rail 113 of each frame 103, so that the bearing 12 in each third box 123
The third roll 124 pivotally supported by 2 is separated from the first roll 106 thereunder at a sufficient distance. In this state, the surface is treated with a release material from a winding roll (not shown), and characters and patterns are printed on the back side with a thickness of, for example, 80 mm.
The long outer layer film 160 made of μm PET is passed between the first and second rolls 106 and 117 of the unit 129, and between the feed roll 161 and the first and third rolls 106 and 124 by two feed rolls 161. After
The four feed rolls 161 are used to remove static electricity
Through the inside of the container 163, and further through a plurality of hot-air jetting members (not shown) to take up a roll (not shown).
The leading end of the long outer layer film 160 is wound.

Next, after winding the leading end of the long outer layer film 160 on a take-up roll, the two handles 143 of the first pressure adjusting means 144 are rotated clockwise, whereby each cylindrical body 132 is rotated. Each second box 116 connected to the upper end is raised by the slider 114 along each rail 112 of each frame 103,
The second roll 117 supported by the bearing 115 in each of the second boxes 116 is brought into contact with the first roll 106 thereon. Further, by rotating the respective handles 143 in the same direction, the respective coil springs 137 thereon are compressed by the respective sensors 138 at the upper ends of the respective rods 139. By the compression of each of the coil springs 137, a pressing force is applied to the lower wall of each of the second boxes 116, and the second roll 1 supported by a bearing 115 in the second box 116 is supported.
The pressing force between the roller 17 and the first roll 106 increases. At this time, the second roll 1 is detected by the pressure sensors 138.
By detecting the pressing force (compressive force) between the first and second rolls 17 and 106 and adjusting the rotation of each handle 143 in the forward and reverse directions, the second and first rolls 117 and 10 are adjusted.
The pressing force on the long outer layer film 160 located between 6 is adjusted. Such a first pressure adjusting means 144
As a result, the uniform pressing force is applied over the entire surface of the film 160 in contact with the second and first rolls 117 and 106, and the preparation for the punching operation is completed.

After the preparation for the perforation operation is completed, ultrasonic waves are applied to the pure water contained in the container 163 of the static electricity removing means 162 by an ultrasonic generating member (not shown). Then,
By rotating the drive shaft of a motor (not shown) at the same time as rotating the take-up roll, the gear of the drive shaft and the gear 11 of the shaft 109 of the first roll 106 are rotated.
By the rotation transmission of 1, the first roll 106 is rotated clockwise. When the first roll 106 rotates,
The rotation of the gear 110 of the shaft 109 and the gear 120 of the shaft 119 of the second roll 117 causes the second roll 117 to rotate in a counterclockwise direction. in this case,
Since the third roll 124 is sufficiently spaced above the first roll 106, the third roll 124
Gear 128 of the shaft 127 and the first roll 106
Is disengaged from the gear 110 of the shaft 109, and the third roll 124 is not driven by the rotation of the motor, but rotates freely. By rotating the first and second rolls 106 and 117 in this manner, the long outer layer filler 1 passing between these rolls 106 and 117 is rotated.
60 is pierced.

That is, the first roll 106 has a sharp corner as shown in FIGS.
Numerous synthetic diamond particles 10 having a particle size of 00 μm
7 has an iron roll body 108 electrodeposited on the surface thereof with an area ratio of 70% or more via the electrodeposition layer 108a, and the second roll 117 is a hard roll made of, for example, steel. The main body 118 is provided. In addition, the first and second rolls 1 are adjusted by pressing the unit 129 by the first pressure adjusting means 144.
06, 117, the long outer layer film 160
A uniform pressing force is applied over the entire contact surface with the rolls 106 and 117. For this reason, the long outer layer film 160 made of PET is used for the first and second rolls 1.
06, 117, the first roll 106
Due to the sharp corners of the large number of synthetic diamond particles 107 on the surface, the PET film is uniformly perforated in the width direction without substantially impairing the intrinsic characteristics of the PET film. As a result, FIG.
As shown in the figure, a porous long outer layer film 166 made of PET is produced in which a large number of uniformly pierced through holes 165 having an opening diameter of 70 to 80 μm are formed at a density of 5000 / cm ^2. You.

Next, the long outer layer film perforated by the unit 129 is removed by the five feed rolls 161 and the two contact rolls 164 by the electrostatic removing means 1.
It passes through and is conveyed into 62 containers 163. Unit 1
Since the perforation of the long polymer resin fill 160 by 29 is mainly based on the friction of the first and second rolls 106 and 117, a large amount of perforation is performed on the surface of the long outer layer film after the perforation processing. Generates static electricity, causing surrounding dust to adhere. By passing the perforated long outer layer film through the container 163 of the static electricity removing means 162 in which pure water is stored, and applying ultrasonic waves to the pure water by an ultrasonic generating member (not shown), Dust attached to the long outer layer film is washed away. Subsequently, the long outer layer film is passed through a plurality of hot air jet members (not shown) to volatilize and remove water on the surface.

Next, the winding roll on which the porous long outer layer film has been wound is set as the first unwinding roll 167 of the dry laminating apparatus shown in FIG. Then, a porous long outer layer film 166 is applied from the first unwinding roll 167 to a roll 168 and a coating roll 169.
Supply between. The lower portion along the axial direction of the application roll 169 is immersed in an application tank 171 containing, for example, a urethane-based adhesive solution 170. For this reason, by supplying the long outer layer film 166 between the contact roll 168 and the application roll 169, an adhesive is applied to one surface of the long outer layer film 166. Continuously, a long outer layer film 166 having a coating film formed on one side.
The drying oven 173 is guided by a feed roll 172
The solvent in the coating film is volatilized here, and only the adhesive remains on the long outer layer film 166. Further, the long outer layer film 166 is formed of a fine hollow organic resin in which a white pigment sent from the second unwinding roll 174 is dispersed, for example, a long inner layer having a thickness of 60 μm made of Pearl manufactured by Toyobo Co., Ltd. The nipple roll 17 is disposed such that the adhesive-coated surface of the film 166 is in contact with the long inner layer film 175 together with the film 175.
It is supplied between 6 ₁ and 176 ₂ , heated and pressed, and laminated. The laminated film 177 is then wound on the winding roll 1
It is wound up at 78.

Next, a rubber-based adhesive is applied to the surface (the surface opposite to the adhesive layer) of the long inner layer film of the laminated film wound on the winding roll, and the paper-made adhesive is again formed. It was wound around a core tube and cut at a desired width in a direction perpendicular to the axis to produce an easily hand-cut laminated adhesive tape 180 wound in a roll around the core tube 179 shown in FIGS. As shown in FIGS. 6 and 7, the adhesive tape 180 has an outer layer film 166 made of PET having a large number of through holes 165 on which the surface is treated with a release agent and a pattern 181 is printed on the back side. A laminated film 177 formed of an inner layer film 175 made of a fine hollow organic resin having a white opacity and adhered to an adhesive layer 166 via an adhesive layer 182;
7 and an adhesive layer 183 formed on the surface of the inner layer film 175 (the surface opposite to the adhesive layer 182).

The easy-cutting laminated pressure-sensitive adhesive tape 180 having such a configuration is made of a fine hollow organic resin in which a white pigment is dispersed, and has a white concealing inner layer film 175 and an adhesive layer 182 attached to the inner layer film 175. Is provided with an outer layer film 166 on which a pattern 181 is printed on the back side. For example, when the outer layer film 166 is attached to the surface of an adhered member such as a packed cardboard box, the white inner layer film 175 is used as a background. , Picture 1 of outer layer film 166
The cardboard box can be sealed with a beautiful tape on which 81 has risen.

Also, the easy-cut lamination adhesive tape 180
In FIG. 8, the core tube 1 is held with one hand 184.
79 and the roll-shaped adhesive tape 180, and at the same time, the adhesive tape 180 pulled out from the roll is picked up with the thumb and the index finger, and the other hand 185 is picked up with the thumb and the index finger, and the tape 180 pulled out is picked up. When pulled in the direction, a large number of fine through-holes 165 are formed in the outer layer film 166 constituting the adhesive tape 180, and these through-holes 165 act as tearing starting points (breaking starting points). Can be cut into Therefore, the easy-cutting laminated adhesive tape 180 of the present invention has good hand-cutting properties, and has a character or pattern attached to the tape itself attached to the adhered member such as a packed cardboard box. It can be used for simple packaging materials and binding tapes for vegetables and the like.

Further, the easy-cut lamination adhesive tape 18
9 includes an inner layer film 175 made of a fine hollow organic resin (for example, Pearl manufactured by Toyobo Co., Ltd.) in which a white pigment is dispersed.
And a cardboard box 186 packed as shown in FIG.
When peeling after sticking to the area where the two upper cardboard plates 187 are in contact, the inner layer film 175 undergoes interfacial peeling at the peeled portion of the adhesive tab 180. As a result, even if the adhesive tape 180 of the packed cardboard box 186 is peeled off and attempted to be opened without permission, a white residual inner layer film 188 is formed on the surface of the cardboard board 187 of the opened cardboard box 186. Therefore, even if the adhesive tape is again adhered to the surface of the peeled cardboard box 186, the state of unsealed opening can be easily confirmed by the remaining inner layer film 188. Thus, the easy-cut lamination adhesive tape 180 of the present invention can be effectively used as a sealing tape for the purpose of preventing unauthorized opening or reopening.

(Example 2) PE without back printing
A laminated film 177 produced in the same manner as in Example 1 except that a pixel film made of T is used is supplied between the first and second rolls of the porous device shown in FIGS. 1 to 3 described above. The inner layer film 1 of the laminated film
A large number of non-through holes having an opening diameter of 80 to 95 μm and penetrating through the adhesive layer from the 75 side to the middle of the outer layer film were uniformly and perforated at a density of 6000 / cm ² . Subsequently, a rubber-based pressure-sensitive adhesive is applied to the surface of the long inner layer film of the laminated film (the surface opposite to the adhesive layer), wound around a paper core tube, and wound in a direction perpendicular to the axis. By cutting in a width, an easily hand-cut laminated adhesive tape 189 wound around a core tube 179 shown in FIGS. 11 and 12 in a roll shape was manufactured. As shown in FIGS. 11 and 12, the adhesive tape 189 has an outer layer film 166 made of PET having a large number of through holes 165 whose surfaces have been treated with a release agent.
It has a laminated film 177 formed from an inner layer film 175 made of a fine hollow organic resin having a white concealing property and adhered through the inner layer 82. The laminated film 177
Is the adhesive layer 1 from the surface of the inner layer film 175.
A large number of non-through holes 190 extending to the outer layer film 166 through 82 are opened, and most of the non-through holes 190 are connected to the through holes 165 of the outer layer film 166 at the outer layer film 166 portion. The surface of the inner film 175 of the laminated film 177 (the adhesive layer 1)
An adhesive layer 183 is formed on the surface opposite to the surface 82.

With the easy-cutting laminated adhesive tape 189 having such a configuration, the paper tube 179 and the roll-shaped adhesive tape 189 are grasped with one hand, and the adhesive tape 189 pulled out from the roll is gripped with the thumb and the forefinger. The tape 18 pulled out with the thumb and forefinger of the other hand
9 is pulled in the width direction of the tape 189, a large number of fine through holes 165 are formed in the outer layer film 166 constituting the adhesive tape 180, and the adhesive layer is formed from the surface of the inner layer film 175. A number of non-penetrating holes 190 are opened to the outer layer film 166 through 182, and these through-holes 165 and non-penetrating holes 190
Acts as a starting point of tearing (starting point of fracture). For this reason, it can cut | disconnect in the width direction much more easily than the adhesive tape of the structure shown in FIG. 6 mentioned above. Therefore, the easily cuttable laminated adhesive tape 189 of the present invention has good cuttability and can be used as a binding tape for vegetables and the like.

Further, the easy-cut lamination adhesive tape 189 may be used.
Is provided with an inner layer film 175 made of a fine hollow organic resin (for example, Pearl manufactured by Toyobo Co., Ltd.) in which a white pigment is dispersed, so that the adhesive tape 189 is similar to the adhesive tape having the structure shown in FIG. The inner layer film 175 undergoes interfacial peeling at the peeled portion, and can be effectively used as a sealing tape for the purpose of preventing unauthorized opening or reopening.

Further, the easy-cutting laminated adhesive tape 18
9 has many through holes 165 in the outer layer film 166,
And from the surface of the inner layer film 175 to the adhesive layer 1
A large number of unpenetrated holes 190 extending to the outer layer film 166 through 82 are opened, and the laminated film 17 having a structure in which most of the unpenetrated holes 190 are connected to the through holes 165 of the outer layer film 166 by the outer layer film 166 portion.
7 is provided. For this reason, when the tape is stuck on the stuck member such as a cardboard box packed and a character or the like is written on the outer layer film 166 on the front side thereof with a magic pen or the like, the ink is filled with the numerous fine through holes 165. Then, it penetrates and is fixed to the adhesive layer 183 thereunder through a number of fine non-through holes 190 connected thereto. As a result, characters and the like can be easily written with a magic pen or the like, and even if the tape surface after writing is touched with a finger, the characters and the like do not spread,
Clear characters can be displayed on the tape with the white inner layer film 175 as the background. Therefore, since letters and patterns can be written on the tape itself attached to the adhered member such as a packed cardboard box, it can be used as a simple packaging material in department stores and the like.

[0077]

As described above in detail, according to the present invention, it is possible to easily cut by hand, and to display characters and patterns with the inner layer film having a concealing property as a background. This makes it possible to provide an easily hand-cut laminated adhesive tape useful as a simple packaging material.

Further, according to the present invention, it is possible to provide an easily hand-cut laminated adhesive tape having a function of preventing unauthorized opening or reopening.

Further, according to the present invention, it is possible to provide an easily hand-cut laminated pressure-sensitive adhesive tape which allows characters and patterns to be easily written with a magic pen or the like.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of a porous device used in an embodiment of the present invention.

FIG. 2 is a side view showing a main part of the apparatus of FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view of a main part of the porous forming apparatus of FIG. 1;

FIG. 5 is a schematic diagram showing a dry laminating apparatus used in Example 1 of the present invention.

FIG. 6 is a cross-sectional view showing an easily cut-off laminated pressure-sensitive adhesive tape obtained in Example 1.

FIG. 7 is a perspective view showing the easy-to-cut lamination adhesive tape of Example 1 wound around a paper tube.

FIG. 8 is a perspective view showing a state in which the easily-cuttable laminated adhesive tape of Example 1 is cut by hand.

FIG. 9 is a perspective view showing a state in which the easy-cut lamination adhesive tape of Example 1 is adhered to a cardboard box and then peeled off for opening.

FIG. 10 is a sectional view taken along the line XX in FIG. 9;

FIG. 11 is a cross-sectional view showing an easily hand-cut laminated adhesive tape obtained in Example 2.

FIG. 12 is a perspective view showing an easily hand-cut laminated adhesive tape of Example 2 wound around a paper tube.

[Explanation of symbols]

101 ... bed, 105 ... first box, 106 ... first
Roll, 107: synthetic diamond particles, 116: second
Box, 117: second roll, 123: third box, 124: third roll, 129: punching unit, 1
44, 159: Pressure adjusting means, 160: Long outer layer film, 162: Static electricity removing means, 165: Porous long outer layer film, 166: Through hole, 175: Inner layer film, 1
77 ... Laminated film, 179 ... Core tube, 180, 189 ...
Easy-cut lamination adhesive tape, 181: picture, 182: adhesive layer, 183: adhesive layer, 186: cardboard box, 18
8: residual inner layer film, 190: non-through hole.

Claims (5)

(57) [Claims] 1. A laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer, and an adhesive layer formed on a surface of the inner layer film of the laminated film. The outer layer film is provided with a desired print on the back surface on the side of the adhesive layer, and is formed with a large number of fine through holes having an average opening diameter of 0.5 to 100 μm at a density of 1000 / cm ² or more. An easy-to-cut lamination adhesive tape characterized by being made. 2. A laminated film in which an outer layer film made of an organic resin having rigidity is laminated on an inner layer film having a concealing property via an adhesive layer, and an adhesive layer formed on a surface of the inner layer film of the laminated film. The inner layer film is a fine hollow organic resin film in which a white pigment is dispersed, and the outer layer film is provided with a desired print on the back surface of the adhesive layer side, and average
1,000 fine through-holes with an opening diameter of 0.5 to 100 μm
An easily hand-cut laminated pressure-sensitive adhesive tape, which is formed in a large number at a density of / cm ² or more . 3. A laminated film in which an outer layer film made of a rigid organic resin is laminated on an inner layer film having a concealing property via an adhesive layer, and an adhesive layer formed on a surface of the inner layer film of the laminated film. The laminated film has fine pores having an average opening diameter of 0.5 to 100 μm which communicate between the surface of the outer layer film and the surface of the inner layer film on which the pressure-sensitive adhesive layer is formed.
An easily hand-cut laminated adhesive tape, which is formed in large numbers with a density of 0 / cm ² or more. 4. The laminated film according to claim 1, wherein the outer layer film has 10 fine through holes having an average opening diameter of 0.5 to 100 μm.
A large number of openings are formed at a density of at least 00 / cm ² , and the average opening diameter is from 0.5 to 1 from the surface of the inner layer film on the side of the adhesive layer to the middle of the outer layer film through the adhesive layer.
A large number of fine non-through holes of 00 μm are opened at a density of 1000 / cm ² or more, and a part or all of the non-through holes are connected to the through holes by the outer layer film portion. 3. The easy-cut lamination adhesive tape according to 3. 5. A laminated film obtained by laminating an outer layer film made of a rigid organic resin on an inner layer film having a concealing property via an adhesive layer, and an adhesive layer formed on a surface of the inner layer film of the laminated film. The inner layer film is a fine hollow organic resin film in which a white pigment is dispersed, and the laminated film is between the surface of the outer layer film and the surface of the inner layer film where the pressure-sensitive adhesive layer is formed. Average opening diameter of 0.5 to
Density of 1000 / cm ² or more fine pores of 100 μm
An easy-cut lamination adhesive tape characterized in that it is formed in a large number of .