JP2000212519A - Laminated sheet roll for automatically applying double- sided tacky material to material to be applied and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated sheet roll capable of always surely peeling a separator from a double-sided tacky material without being influenced by environmental conditions at the time of production and simplifying regulation techniques of peel strength of the separator without increasing the grade in storage of raw materials and useful for automatically applying a double-sided tacky material to a material to be applied. SOLUTION: This laminated sheet roll 1 is obtained by rolling a laminated sheet 3 having a double-sided tacky material interposed therein and is useful automatically applying the double-sided tacky material to a material to be applied. The laminated sheet 3 has a first separator 4, the double-sided tacky material 2 formed on the first separator 4 and a second separator 5 provided on the double-sided tacky material 2. At least the surface of the second separator 5 located on the side of the double-sided tacky material 2 is subjected to an uneven treatment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolled sheet for automatically laminating a double-sided pressure-sensitive adhesive to an adherend and a method for producing the same, and more particularly, to a laminated sheet having a double-sided pressure-sensitive adhesive interposed therebetween. The present invention relates to a laminated sheet wound body for automatically adhering a double-sided pressure-sensitive adhesive to an object to be adhered, and a method for producing the same.

[0002]

2. Description of the Related Art A double-sided pressure-sensitive adhesive is used for bonding two types of adherends. As a technique for automatically adhering such a double-sided pressure-sensitive adhesive material to one of the adherends, there has been conventionally the following technique. That is, this is a technique in which a double-sided pressure-sensitive adhesive material is continuously adhered to an adherend continuously transported by a conveyor or the like. As shown in FIG. 9, a conventional double-sided pressure-sensitive adhesive (20) has a front side and a back side protected by separators (21) and (22) before use, and a laminated sheet (23).
The laminated sheet (23) is stored in a wound state, that is, as a laminated sheet roll (24). The method of using the laminated sheet roll (24) is that, after pulling out one end, the separator (21) attached to one adhesive surface of the double-sided adhesive material (20) is peeled off, and the adhesive exposed by the peeling is removed. The surface was pressed against an adherend (not shown) to attach the double-sided adhesive (20) to the adherend, and then adhered to the other adhesive surface of the double-sided adhesive (20). The separator (22) was peeled off.

[0003] The separator (21) is a separator (2).
Because it is peeled before 2),
The separators (21) and (21) are separated so that the peeling force of the separator (21) against the double-sided adhesive material (20) is weaker than the peeling force of the separator (22) against the double-sided adhesive material (20).
(22) had been manufactured. However, in practice, the peeling force of the separator (21) against the double-sided pressure-sensitive adhesive (20) and the peeling force of the separator (22) against the double-sided pressure-sensitive adhesive (20) are not uniform distribution, and may have non-uniform strength in some cases. . For this reason, the peeling force of the separator (21) with respect to the double-sided adhesive material (20) is higher than the peeling force of the separator (22) with respect to the double-sided adhesive material (20) in some places. When the separator (21) was peeled off, the double-sided pressure-sensitive adhesive (20) was sometimes adhered to the separator (21).

[0004] The peeling force of the separators (21) and (22) against the double-sided adhesive material (20) is as follows.
Even in the case of 4), it was often non-uniform, and it was unclear which peeling force was strong and where the peeling force was weak in any of the laminated sheet rolls (24). When this happens, the separator (21) is mechanically peeled off from the adherend continuously conveyed by the conveyor, and the double-sided adhesive material (2
0) could not be adhered, which hindered automatic adhesion of the double-sided adhesive material (20). For this reason, the peeling force of the separator (21) to be peeled first must be made surely weaker than the peeling force of the separator (22) to be peeled later. The separator (2
The reason why the peeling force of 1) becomes stronger than the peeling force of the separator (22) to be peeled later is that the laminated sheet roll (24)
The longer the product is stored after storage, the stronger the tendency.
The reason for this is that, when the laminated sheet roll (24) is stored, the load (own weight) applied to the laminated sheet roll (24) is non-uniform depending on the position of the laminated sheet roll (24). It is.

[0005]

However, in order to ensure that the peeling force of the separator (21) that is peeled first is weaker than the peeling force of the separator (22) that is peeled later, the following is required. There was a problem. That is, in order to make a large difference between the peeling force of the separator (21) that is peeled first and the peeling force of the separator (22) that is peeled later, the manufacturer of the laminated sheet has a large difference in the peeling force.
When a type of separator is outsourced to another company or the separator is manufactured in-house, the peeling force of the separator has to be adjusted to a predetermined value. These have doubled the inventory varieties and imposed a technical burden on laminated sheet manufacturers. Further, the laminated sheet (23) can be formed at room temperature during production,
During product storage, the peeling force of the separators (21), (22) fluctuates entirely or partially from the initial setting conditions due to the influence of humidity, lamination pressure, storage time, etc., and the separator (21) smoothly moves during use. In many cases, peeling was not possible.

The present invention has been made in view of the above circumstances, and it is possible to always reliably separate the separator from the double-sided adhesive material without being affected by the environmental conditions at the time of manufacturing, and the number of stocks of raw materials increases. It is an object of the present invention to provide a laminated sheet wound body for automatically adhering a double-sided pressure-sensitive adhesive to an object to be adhered, and a method for producing the same, which can simplify the technique for adjusting the peeling force of the separator.

[0007]

According to the first aspect of the present invention,
A laminated sheet wound body for automatically attaching a double-sided adhesive to an adherend, which is formed by winding a laminated sheet having a double-sided adhesive interposed therebetween, wherein the laminated sheet includes a first separator,
It has a double-sided adhesive provided on the first separator, and a second separator provided on the double-sided adhesive, wherein the second separator has at least a surface located on the double-sided adhesive side. A rolled laminated sheet characterized by being subjected to an unevenness treatment.

[0008] In the invention according to claim 2, the unevenness treatment is performed as follows:
The laminated sheet roll according to claim 1, which is any one of embossing, corrugating, shearing, creping, and satin finishing.

According to a third aspect of the present invention, there is provided a method of manufacturing a rolled laminated sheet for automatically adhering a double-sided pressure-sensitive adhesive to an adherend, the method comprising the steps of: A step of attaching a material and attaching a dummy separator on the double-sided adhesive, and a step of punching both the dummy separator and the double-sided adhesive into a desired shape by pressing a cutting blade from the dummy separator side. A step of bonding an adhesive tape on the punched dummy separator, a step of peeling off the dummy separator by peeling off the adhesive tape, and a step of bonding at least double-sided adhesive on the double-sided adhesive material exposed by peeling off the dummy separator. A step of attaching a second separator, which has been subjected to unevenness treatment, to a surface located on the material side to form a laminated sheet, and a step of winding the laminated sheet. Which is a method for producing a laminated sheet wound body, wherein.

According to a fourth aspect of the present invention, in the method of the first aspect,
The method according to claim 3, wherein the method is any one of embossing, corrugating, shearing, creping, and satin finishing. By providing these inventions, the above problems are completely solved.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional front view showing a laminated sheet roll according to the present invention. FIG. 2 shows FIG.
FIG. 4 is a view of the laminated sheet roll shown in FIG.

[0012] The rolled laminated sheet (1) according to the present invention comprises:
This is for automatically adhering the double-sided adhesive material (2) to the adherend (W) (see FIG. 3), and winding the laminated sheet (3) having the double-sided adhesive material (2) interposed therebetween. It becomes. The laminated sheet (3) includes a first separator (4) and the first separator (4).
A double-sided adhesive (2) provided on a separator (4);
And a second separator (5) provided on the double-sided pressure-sensitive adhesive (2). Hereinafter, these components will be sequentially described in detail.

The first separator (4) is a separator which is peeled off from the double-sided pressure-sensitive adhesive material (2) after the double-sided pressure-sensitive adhesive material (2) is adhered to the adherend (W) (a separator which is peeled off later) ). The material of the first separator (4) is
There is no particular limitation, and for example, it can be made of paper or plastic film.

The double-sided adhesive material (2) is to be adhered to the adherend (W) (see FIG. 3), and the adherend (W) and another adherend (see FIG. 3). (Not shown)
These adherends (W) are bonded together. This double-sided pressure-sensitive adhesive (2) can be composed of only a pressure-sensitive adhesive, but can also have a structure in which a pressure-sensitive adhesive (7) is provided on both sides of a substrate (6) as shown in FIG. As described above, by adopting a structure in which the base material (6) is interposed between the two layers of the adhesive (7), the strength of the double-sided adhesive (2) can be increased. The shape of the double-sided pressure-sensitive adhesive (2) is not particularly limited, but is a ring shape in the example shown in FIG. The kind of the pressure-sensitive adhesive (7) is not particularly limited, and various pressure-sensitive adhesives can be used.

The second separator (5) is a separator which is peeled off from the double-sided adhesive material (2) before the double-sided adhesive material (2) is adhered to the adherend (W) (first peeled off). Separator). The material of the second separator (5) is
There is no particular limitation, and for example, it can be made of paper or plastic film. In addition, the second separator (5) is one in which at least a surface located on the side of the double-sided adhesive material (2) has been subjected to unevenness treatment. In the example shown in FIG. 1, the second separator (5) has irregularities on both surface sides. The method of providing the unevenness is not particularly limited as long as it is a method capable of providing unevenness on the sheet material surface.For example, embossing, corrugating, shearing, creping, satin finishing, or the like may be employed. it can. Also, irregularities can be provided by using a surface processing roll such as a mountain tooth or a helical tooth.

Next, the operation of the laminated sheet roll (1) will be described. The laminated sheet roll (1) is formed by winding a laminated sheet (3), and the laminated sheet (3) is provided with a first separator (4) on one adhesive surface of a double-sided adhesive material (2). And the second separator (5) is attached to the other adhesive surface. As described above, the second separator (5) is obtained by subjecting at least the surface located on the double-sided pressure-sensitive adhesive (2) side to an unevenness treatment. Therefore, in the second separator (5), only the vicinity of the convex top of the unevenness located on the double-sided adhesive material (2) side comes into contact with the double-sided adhesive material (2). Second separator (5)
In (2), the contact area with the double-sided adhesive (2) is significantly smaller than that of the first separator (4). This allows
Although the peeling force of the second separator (5) is microscopically the same as the peeling force of the first separator (4), the peeling force of the second separator (5) is macroscopically proportional to the contact area. Is the first
It is significantly weaker than the peeling force of the separator (4), and a great difference can be made between the peeling force of the first separator (4) and the peeling force of the second separator (5). Therefore, when the second separator (5) is peeled from the double-sided pressure-sensitive adhesive (2), the double-sided pressure-sensitive adhesive (2) does not follow the second separator (5) while being adhered to the second separator (5). 5) can be reliably separated from the double-sided adhesive material (2).

Next, a method of using the laminated sheet roll (1) will be described with reference to FIG. This rolled laminated sheet (1) is for laminating the double-sided adhesive material (2) sequentially to a plurality of adherends (W) continuously conveyed by a conveyor or the like. . In the example shown in FIG. 3, the adherend (W) is continuously supplied onto the conveyor (8),
The conveyor (8) continuously conveys these adherends (W) at regular intervals. The above-mentioned laminated sheet roll (1) is positioned on the upstream side of the flow of the conveyer (8), and the laminated sheet (3) is pulled out from the laminated sheet roll (1) toward the conveyor (8). It is. The extracted laminated sheet (3) is positioned above the conveyor (8) and extends in the transport direction.

In such an apparatus configuration, first, the second
The separator (5) is peeled downward just before the conveyor (8). As described above, since the second separator (5) is manufactured so that its peeling force is significantly weaker than the peeling force of the first separator (4), the second separator (5) is manufactured after the production of the laminated sheet roll (1). However, even if the peeling force of the first separator (4) and the second separator (5) slightly changes, the peeling force of the second separator (5) does not change when the laminated sheet roll (1) is used. It is definitely weaker than the peeling force of (4). Therefore, the double-sided adhesive material (2) does not follow the second separator (5) while being adhered. Next, one adhesive surface of the double-sided adhesive material (2) exposed by peeling of the second separator (5) is positioned on the adherend (W), and a predetermined pressure is applied to the adherend (W). It is stuck on. When the double-sided adhesive material (2) is adhered to the adherend (W), the first
The separator (4) is peeled upward. At this time, since the double-sided adhesive material (2) is firmly attached to the adherend (W), the double-sided adhesive material (2) becomes the first separator (4).
It will not follow you while it is stuck to. This allows
The double-sided adhesive material (2) has one adhesive surface adhered to the adherend (W), and the other adhesive surface is exposed to the outside. Therefore, two types of adherends (W) can be bonded with the double-sided adhesive material (2) by pressing another adherend (not shown) against the exposed adhesive surface.

According to the rolled laminated sheet (1) of the present invention, the surface of the second separator (5) located on the double-sided pressure-sensitive adhesive (2) side is subjected to a concavo-convex treatment, whereby the second separator (5) is processed. Is manufactured such that its peeling force is significantly weaker than the peeling force of the first separator (4). Accordingly, the peeling force of the first separator (4) on the double-sided adhesive material (2) and the peeling force of the second separator (5) on the double-sided adhesive material (2) during the production of the laminated sheet roll (1) are uneven. And even if the peeling force of the laminated sheet wound body (1) is slightly changed after the production thereof, the peeling force of the second separator (5) when the laminated sheet wound body (1) is used. Can be reliably made weaker than the peeling force of the first separator (4). For this reason, the second separator (5)
Of the double-sided pressure-sensitive adhesive material (2) can be surely peeled off, and the double-sided pressure-sensitive adhesive material (2) can be reliably and automatically adhered to the adherend (W). Moreover, since the material of the second separator (5) and the material of the first separator (4) can be made the same,
The manufacturer of the laminated sheet roll (1) can maintain a stable quality without increasing the number of types of stock and regardless of the processing conditions, the storage state of the laminated sheet roll (1), and the length of the storage period. The obtained laminated sheet roll (1) can be obtained.

Next, a method for producing the laminated sheet roll (1) according to the present invention will be described. 4 to 8 are cross-sectional views each showing one step of the method for manufacturing the laminated sheet roll (1) according to the present invention. In addition, the description which overlaps with the description of the laminated sheet wound body (1) will be omitted. In the method for manufacturing a laminated sheet roll (1) according to the present invention, first, as shown in FIG. 4, a double-sided pressure-sensitive adhesive (2) is stuck on a first separator (4), (2) A dummy separator (9) is stuck on the top. Dummy separator (9) cuts double-sided adhesive material (2) with cutting edge (10)
This is for preventing the double-sided adhesive material (2) from sticking to the cutting blade (10) when performing the punching process (see FIG. 5). The material of the dummy separator (9) is not particularly limited, and may be, for example, paper, a plastic sheet, or the like. Since the dummy separator (9) is peeled off from the double-sided adhesive material (2) in the manufacturing process of the laminated sheet roll (1), the peeling force of the dummy separator (9) is equal to the first separator (9). It is necessary to set weaker than the peeling force of 4).

Next, as shown in FIG. 5, a cutting blade (10) is pressed from the dummy separator (9) side to punch both the dummy separator (9) and the double-sided adhesive material (2) into a desired shape. I do. The punching shape in this punching process is not particularly limited, but in this embodiment, as shown in FIG. 2, the ring-shaped double-sided adhesive material (2) remains on the first separator (4). It is stamped. In this step, the cutting edge (10) is pressed from the side of the dummy separator (9) to cut the double-sided adhesive material (2), so that the portion of the double-sided adhesive material (2) that should remain on the first separator (4) Does not stick to the cutting blade (10). Thereby, when the cutting blade (10) is pulled up after the punching process, the first double-sided adhesive material (2) is removed.
The part to be left on the separator (4) can be prevented from following the cutting blade (10).

Next, as shown in FIG. 6, an adhesive tape (11) is placed on the stamped dummy separator (9).
Glue. This adhesive tape (11) is for peeling off the dummy separator (9). The material of the adhesive tape (11) and the kind of the adhesive are not particularly limited, and for example, a tape made of plastic can be used. The adhesive tape (11)
It is sufficient if the adhesive tape has an adhesive strength enough to hold the dummy separator (9) firmly when the adhesive tape (11) is lifted.

Next, as shown in FIG. 7, by peeling the adhesive tape (11), the dummy separator (9) is also peeled. As described above, since the adhesive tape (11) has an adhesive strength enough to hold the dummy separator (9) firmly when the adhesive tape (11) is lifted, the adhesive tape (11) is peeled off. By doing so, the dummy separator (9) can also be peeled off.

Next, as shown in FIG. 8, on the double-sided adhesive material (2) exposed by peeling of the dummy separator (9), at least the surface located on the double-sided adhesive material (2) side was subjected to unevenness treatment. The second separator (5) is attached to form a laminated sheet (3). Since the second separator (5) has a structure in which at least the surface located on the double-sided pressure-sensitive adhesive (2) side has been subjected to unevenness treatment, as described above, its peeling force is reduced by the peeling force of the first separator (4). Can be significantly weaker.

Next, the laminated sheet (3) is wound (see FIG. 1). When winding the laminated sheet (3), it does not matter whether the second separator (5) is positioned inside or outside, but in the example shown in FIG. 1, the second separator (5) is used. The laminated sheet (3) is wound so that is positioned inside. Through the above steps, the laminated sheet roll (1) is completed.

According to the method of manufacturing the rolled laminated sheet (1) according to the present invention, the double-sided adhesive material (2) is cut by pressing the cutting blade (10) from the dummy separator (9) side. The portion of the adhesive (2) that should remain on the first separator (4) does not stick to the cutting blade (10). This prevents a portion of the double-sided adhesive material (2) that should remain on the first separator (4) from following the cutting blade (10) when the cutting blade (10) is pulled up after the punching process. Can be. Also, this dummy separator (9)
By peeling the adhesive tape (11), the adhesive tape (11) can be peeled from the double-sided pressure-sensitive adhesive (2). Note that the peeling force of the dummy separator (9) needs to be set to be weaker than the peeling force of the first separator (4), but the dummy separator (9) is used when manufacturing the laminated sheet roll (1). The first separator (4)
Unlike the second separator (5) or the second separator (5), it is not stored after manufacturing and the peeling force does not change. Therefore, the peeling force of the dummy separator (9) is equal to the first separator (4).
The double-sided adhesive material (2) is stuck to the dummy separator (9) so that it is not peeled off because it is certainly weaker than the peeling force of the laminated sheet, and the quality of the laminated sheet roll (1) is always stabilized. Can be.

[0027]

According to the first aspect of the present invention, there is provided a rolled laminated sheet for automatically adhering a double-sided pressure-sensitive adhesive to an adherend, which is formed by winding a laminated sheet having a double-sided pressure-sensitive adhesive interposed therebetween. hand,
The laminated sheet includes a first separator, a double-sided pressure-sensitive adhesive provided on the first separator, and a second separator provided on the double-sided pressure-sensitive adhesive. Since the uneven surface treatment is applied to the surface located on the double-sided adhesive material side, the laminated sheet roll has the following effects. That is, the second separator is manufactured such that the peeling force is significantly weaker than the peeling force of the first separator by subjecting the surface located on the double-sided pressure-sensitive adhesive material side of the second separator to the unevenness treatment. Therefore, the peeling force of the first separator against the double-sided pressure-sensitive adhesive material and the peeling force of the second separator against the double-sided pressure-sensitive adhesive material during the production of the laminated sheet roll are not uniform, Even when a slight change occurs in the peeling force of the laminated sheet, the peeling force of the second separator can be surely made weaker than the peeling force of the first separator when the laminated sheet roll is used. Accordingly, the second separator can be reliably peeled from the double-sided pressure-sensitive adhesive material, and the double-sided pressure-sensitive adhesive material can be automatically and reliably adhered to the adherend. In addition, since the material of the second separator and the material of the first separator can be made the same, the manufacturer of the laminated sheet wound body does not need to increase the number of inventories, and furthermore, the conditions in the processing step, the laminated sheet wound body Regardless of the storage condition and the length of the storage period, it is possible to obtain a laminated sheet roll having stable quality.

Here, the unevenness processing is performed by embossing,
In the case of any of corrugation processing, shearing processing, creping processing, and satin finish processing, the second separator is reliably formed with irregularities to make the peeling force of the second separator weaker than the peeling force of the first separator. be able to.

According to a third aspect of the present invention, there is provided a method for producing a laminated sheet roll for automatically attaching a double-sided pressure-sensitive adhesive to an adherend, the method comprising: A step of sticking an adhesive and sticking a dummy separator on the double-sided adhesive, and a step of pressing both the dummy separator and the double-sided adhesive into a desired shape by pressing a cutting blade from the dummy separator side. And, a step of bonding an adhesive tape on the punched dummy separator, a step of peeling off the dummy separator by peeling off the adhesive tape, and a double-sided adhesive material exposed by peeling off the dummy separator, at least both sides A step of adhering a second separator, which has been subjected to unevenness treatment, to a surface located on the side of the adhesive material to form a laminated sheet, and a step of winding the laminated sheet. Preparative because it is method for producing a laminated sheet wound body, wherein the following effects. That is,
Since the cutting edge is pressed from the dummy separator side to cut the double-sided adhesive, the part of the double-sided adhesive that should remain on the first separator does not stick to the cutting edge, and thus the punching process is completed and the cutting edge is removed. When pulled up, it is possible to prevent a portion of the double-sided adhesive material that should remain on the first separator from following the cutting blade. The dummy separator can be peeled off from the double-sided adhesive material by peeling the adhesive tape. Moreover, since the dummy separator is a member used temporarily when manufacturing the laminated sheet roll, it is stored like the first separator and the second separator after the manufacture and the peeling force may change. Nothing. Therefore, since the peeling force of the dummy separator is surely weaker than the peeling force of the first separator, the double-sided adhesive does not peel off while being adhered to the dummy separator, and the quality of the laminated sheet roll is reduced. Can always be stabilized.

Here, the unevenness processing is performed by embossing,
In the case of any of corrugation processing, shearing processing, creping processing, and satin finish processing, the second separator is reliably formed with irregularities to make the peeling force of the second separator weaker than the peeling force of the first separator. be able to.

[Brief description of the drawings]

FIG. 1 is a partial sectional front view showing a laminated sheet roll according to the present invention.

FIG. 2 is a view of the laminated sheet roll shown in FIG.

FIG. 3 is a front view showing a use state of the laminated sheet roll shown in FIG. 1;

FIG. 4 is a cross-sectional view showing one step of the method for manufacturing a laminated sheet roll according to the present invention.

FIG. 5 is a cross-sectional view showing one step of the method for manufacturing a laminated sheet roll according to the present invention.

FIG. 6 is a cross-sectional view showing one step of a method for manufacturing a laminated sheet roll according to the present invention.

FIG. 7 is a cross-sectional view illustrating one step of a method for manufacturing a laminated sheet roll according to the present invention.

FIG. 8 is a cross-sectional view showing one step of a method for manufacturing a laminated sheet roll according to the present invention.

FIG. 9 is a partial sectional front view showing a conventional laminated sheet roll.

[Explanation of symbols]

 1 ... Laminated sheet wound body 2 ... Double-sided adhesive material 3 ... Laminated sheet 4 ... First separator 5 ... Second separator 9 ... ..Dummy separator 10 Cutting blade 11 Adhesive tape

Claims (4)

[Claims] 1. A laminated sheet roll for automatically attaching a double-sided adhesive to an adherend, which is formed by winding a laminated sheet having a double-sided adhesive interposed therebetween, wherein the laminated sheet is 1
It has a separator, a double-sided adhesive provided on the first separator, and a second separator provided on the double-sided adhesive, wherein the second separator is located at least on the double-sided adhesive side. A layered sheet roll, characterized in that a surface to be processed is subjected to an unevenness treatment. 2. The laminated sheet roll according to claim 1, wherein the unevenness processing is any one of embossing, corrugating, shearing, creping, and satin finishing. 3. A method for producing a laminated sheet roll for automatically attaching a double-sided pressure-sensitive adhesive to an adherend, the method comprising: adhering a double-sided pressure-sensitive adhesive on a first separator; A step of attaching a dummy separator on the double-sided adhesive material, a step of pressing a cutting blade from the dummy separator side to punch both the dummy separator and the double-sided adhesive material into a desired shape, The step of bonding the adhesive tape on the separator, the step of peeling off the dummy separator by peeling off the adhesive tape, and on the double-sided adhesive exposed by peeling off the dummy separator,
A laminated sheet comprising: a step of forming a laminated sheet by adhering a second separator subjected to a concavo-convex treatment to at least a surface located on the double-sided adhesive side; and a step of winding the laminated sheet. Manufacturing method of wound body. 4. The method for producing a laminated sheet roll according to claim 3, wherein the unevenness processing is any one of embossing, corrugating, shearing, creping, and satin finishing.