JPH11107197A - Wall paper and its cutting, and slitter for wall paper sizing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stick a wall paper favorably in terms of visual sense and design by cutting the wall paper so that the reverse face runs shorter than the surface at the edge section so as to prevent aperture-like feeling development at the end of the wall paper to be stuck adjacently. SOLUTION: A wall paper 4 is cut in such a way that the reverse face 42 side runs shorter than the surface 41 side in respect of the center of the wall paper so as to be <5 deg. (pref. 0.5-2 deg.) in the divergence angle α of the slope corresponding to a notch. The cutting blade to be used is a rotator, i.e., shiftedly pressure-welded rotary blade, e.g. a slitter with upper and lower blades arranged so as to cut a wall paper from the reverse face toward the surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper, a method for cutting the wallpaper, a slitter for a wallpaper sizing machine, and the like. More specifically, the invention of this application is directed to a wallpaper that does not cause a problem of opening when gluing and pasting even a thick wallpaper, a cutting method for the wallpaper, and a wallpaper sizing machine. It is related to a slitter for use.

[0002]

2. Description of the Related Art Conventionally, when glue is applied to a wallpaper for cloth attachment such as a wall or a ceiling of a house or the like, a glue-free portion such as both ears of the wallpaper is cut in advance and then applied to the back of the wallpaper. Gluing is performed, and an automatic gluing machine for gluing is also provided with a slitter for this cutting.

[0003] The slitter will be described. For example, as shown in FIG. 9, an automatic gluing machine (2) uses a glue box (21) on the back side of a wallpaper (4) sent out from a web roll (1). Before gluing the sized paste with the sizing roll (22), the slitter (3)
In, both ears of the wallpaper are cut by the cutting blade (31). This cutting is for removing the unnecessary portion of the wallpaper in both ears and for setting the width dimension of the wallpaper requiring gluing to a predetermined value.

In this case, the slitter (3)
Conventionally, the structure shown in FIGS. 10 and 11 is known. When the slitter (3) is arranged in the wallpaper gluing machine, the axial centers are substantially parallel to each other on both sides of the wallpaper feeding direction (A), and the wallpaper feeding direction (A)
Mounting shaft (32A) (32
B), each of the cutting blades (31) being staggered and pressed against each other in a positional relationship between the outside and the inside with respect to the center of the wallpaper.
A) and (31B). Outer cutting blade (31
A) is the upper blade, and the inner cutting blade (31B) is in the relation of the lower blade. The inner cutting blade (31B) as a lower blade is urged by a spring elastic material provided between the pressing roller (33) and pressed against the outer cutting blade (31A) as an upper blade.

As for the relationship with the front and back surfaces of the wallpaper, the axial center of the mounting shaft (32A) of the outer cutting blade (31A) as the upper blade is located on the front surface side of the wallpaper, and the inner cutting blade (31B), The mounting shaft (32B) of the blade is connected to the pressing roller (3).
3) And it is located on the back side of the wallpaper together with the guide roller (34). The mounting shafts (32A) and (32B) are supported by covers (35) on both sides of the slitter (3) and a fixing stay (36). And, the slitter (3) is a frame (3) to which the cover (35) is attached.
5A) is attached to the sizing machine by a hook (37), a gripper (38) or the like provided for the lower blade by rotation of a driving connection gear (39) interlocked with a gear for driving a roller of the sizing machine. The mounting shaft (32B) is rotated to rotate the lower blade, that is, the inner cutting blade (31B).

The upper blade, that is, the outer cutting blade (31A) is rotated via a gear. The specifications of the above-described slitter will be described more specifically as follows. That is, although shown in an enlarged manner in FIG. 12, in the relationship between the upper blade of the slitter: the outer cutting blade (31A) and the lower blade: the inner cutting blade (31B), the sizing machine (2)
In the ratio with the peripheral speed of the delivery roll (23), which defines the wallpaper supply speed for gluing the paper, the delivery roll (23) 1 Upper blade: outer cutting blade (31A) 1.50 to 1.80 Lower blade: The inner cutting blade (31B) has a peripheral speed ratio of 1.25 to 1.50.

The ratio of the diameter of the outer cutting blade (31A) to the diameter of the inner cutting blade (31B) is 1.1 to 1.2. FIG.
2 has an overlap dimension (W) of 2.1 to 4.0.
mm.

[0008]

However, the conventional slitter as described above is effective in cutting the wallpaper. However, in the cut surface of the cut conventional wallpaper, the harder the wallpaper is, for example, As shown in FIG.
There is a problem that the front side (41) of the wallpaper (4) is cut short, and the wall is cut deeper from the back side (42) to the front side with respect to the center of the wallpaper.

The cutting surface in such a state is, for example, a wall,
When the wallpaper is pasted adjacent to the ceiling or the like, as shown in FIG. 14, when the wallpaper is thin, it is hardly noticeable,
As the wallpaper gets thicker, it looks like it's opening,
Visual and design problems can occur. It is considered ideal that the surface is cut perpendicularly from the front side to the back side as shown in FIG. 15, but in reality, the problem of cutting as shown in FIG. 14 was unavoidable.

When this problem is further examined, as shown in FIG. 15, it seems ideal that the cut surface is vertical. However, as a unique problem of wallpaper as an interior interior product, there is a vertical problem. However, there is a problem that the occurrence of the above-mentioned opening is inevitable even in the cut surface of the above. This is because the wallpaper has the structure shown in FIG.
Usually, the front surface (41) and the back surface (42) have a laminated material structure in which different kinds of resin sheets and Japanese paper are bonded together. Although various resin sheet members are used on the front surface (41) to give various designs, colors, and textures, the back surface (42) has good water retention and good wettability by applying a paste. Western paper or the like is used. For this reason, even if the cut end face is vertical, if the glue (43) is applied to the back surface (42), the paper or the like on the back surface (42) will be stretched by moisture as shown in FIG. 16B. on the other hand,
The resin sheet member on the surface (41) tends to shrink against such elongation. From this, the front surface (41) is shorter than the central portion of the wallpaper, and the rear surface (42) is longer, and the generated dimensional difference (L ₀ ) eventually results in the adjoining wallpaper as shown in FIG. At the joint, it looks as if the eyes were open.

The wallpaper (4) has a thickness of up to about 1 mm, and the elongation accompanying the gluing on the back surface (42) is about 0.5 to 0.5 with respect to the dimension (L) of the wallpaper.
Although it is as small as about 1.5%, the dimensional difference (L ₀ )
The thicker and harder the wallpaper, the larger the appearance. Therefore, the invention of this application solves the conventional problems as described above, and at the end of the wallpaper to be pasted adjacently,
New wallpaper and technical technology for cutting new wallpaper, which enables the application of good-looking and design-friendly wallpaper without causing the problem of opening feeling even with thick wallpaper It is intended to provide a means.

[0012]

Means for Solving the Problems According to the invention of the present application, as a solution to the above-mentioned problem, first, in the cross section at the end, the back side is shorter than the front side with respect to the center part of the wallpaper. The present invention provides a wallpaper (Claim 1). In addition, as an aspect, the invention of this application also provides that an inclined surface is formed from the front side to the back side (Claim 2) and that the back side is glued (Claim 3).

The invention of the present application is, secondly, a wallpaper cutting method characterized by cutting the wallpaper as described above (claims 4 to 7). The following method is also provided. This is a method of cutting the wallpaper with a cutting blade that is staggered and pressed against each other on the front and back sides of the wallpaper, which is arranged at a position substantially orthogonal to the direction of feeding of the wallpaper, at the center of the required wallpaper to be cut A wallpaper cutting method, wherein the cutting is performed such that the center of the mounting shaft of the cutting blade on the outside is on the back side of the wallpaper (claim 8).

This is a method of cutting a wallpaper by a cutting blade pressed in a staggered manner in which a mounting shaft is disposed at a position substantially orthogonal to the feeding direction of the wallpaper on each of the front and back sides of the wallpaper. The center of the mounting axis of the cutting blade on the outer side with respect to the center of the wall is on the surface side of the wallpaper, and the axis of the mounting axis of the outer and inner cutting blades is inclined downward toward the edge of the wallpaper. A wallpaper cutting method, characterized in that the wallpaper is cut by a method (Claim 9).

[0015] A method of cutting a wallpaper by a cutting blade pressed in a staggered manner in which a mounting shaft is disposed at a position substantially orthogonal to a feeding direction of the wallpaper on each of the front and back sides of the wallpaper, and the required wallpaper to be cut is provided. The center of the mounting axis of the cutting blade on the outer side with respect to the center of the wall is on the surface side of the wallpaper, and the inner cutting blade has the surface pressed against the outer cutting blade facing the shaft center. A wallpaper cutting method, characterized in that the wallpaper is cut at an angle as instructed (claim 10).

Thirdly, the invention of this application provides a wallpaper slitter other than for the cutting method described above.
In the state of being installed in the wallpaper gluing machine, on each side of the wallpaper feeding direction, the axial center is substantially parallel to each other, and each of the mounting shafts arranged at a position substantially orthogonal to the wallpaper feeding direction is provided. A cutting blade is a slitter for binaural cutting of a wallpaper which is attached by being staggered and pressed against each other in an inner and outer positional relationship with respect to a center portion of the wallpaper, wherein the outer cutting blade is; A slitter for a wallpaper gluing machine, wherein the center of the shaft is disposed on the back side of the wallpaper (claim 11).

[0017] In the state of being installed in the wallpaper sizing machine, on both sides of the wallpaper in the feeding direction, the center of the shaft is substantially parallel to each other and the mounting shaft is disposed at a position substantially orthogonal to the feeding direction of the wallpaper. In each case, the cutting blade is a slitter for binaural cutting of the wallpaper, which is attached by being staggered and pressed against each other in an inner and outer positional relationship with respect to the center of the wallpaper, wherein the outer cutting is performed. The wallpaper is characterized in that the blades are arranged so that their axial centers are on the surface side of the wallpaper, and the axial centers of the outer and inner cutting blades are inclined downward toward the wallpaper side edge. A slitter for a gluing machine (Claim 12).

[0018] In the state of being mounted on the wallpaper gluing machine, the mounting shafts are disposed at positions on both sides of the wallpaper feeding direction where the shaft centers are substantially parallel to each other and substantially orthogonal to the wallpaper feeding direction. In each case, the cutting blade is a slitter for binaural cutting of the wallpaper, which is attached by being staggered and pressed against each other in an inner and outer positional relationship with respect to the center of the wallpaper, wherein the outer cutting is performed. The blade is arranged so that its axis center is on the surface side of the wallpaper, and the inner cutting blade is inclined such that the surface pressed against the outer cutting blade is hollowed toward the axis center. A slitter for a wallpaper sizing machine, characterized in that the slitter is provided.

Fourthly, the invention of the present application also provides a method (claims 14 and 15) for gluing to the wallpaper.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The invention of this application having the above-mentioned features is, for example, as shown in FIG. It is embodied that it is shorter with respect to the center of the image and that the wallpaper is cut in this way. Due to the cut wallpaper, for example, as shown in FIG. 2, even if the wallpaper is thick, it does not look as if the eyes are open on the surface.

The front side (41) and the back side (4) of the wallpaper (4)
The side 2) has a linear or slightly curved inclined surface as illustrated in FIG. 1. In this case, the opening angle (α) of the inclined surface corresponding to the cutout portion is:
In the present invention, it is appropriate that the angle is within 5 °, more preferably within 3 °, and further preferably within 0.5 to 2 °. Although it depends on the thickness of the wallpaper (4) and further on the layer thickness and the type of the layered structure shown in FIG. The portion is not preferable because it is in a peeled state or a state in which the part is easily peeled. Further, if the distance is made as close as possible to the vertical, the same problem as in the related art as shown in FIG. 16 occurs.

If the thickness of the wallpaper (4) is up to about 1 mm, it can be understood how minute such an inclined surface is. However, the above-mentioned open state is such that the visual perception is sharp. However, the effect of the present invention is very remarkable even if it is minute. Such an inclination is realized by cutting the wallpaper, and as the cutting blade, a rotating blade which is a rotating body and is pressed in a staggered manner is exemplified as a preferable one.

However, the cutting of the present invention cannot be realized with a conventional wallpaper slitter using a rotary blade. Therefore, an embodiment of a cutting method and a slitter as the cutting apparatus will be described below, and the embodiment of the present invention will be described in more detail.

[0024]

FIG. 3 shows an example of a cutting method according to the present invention and a slitter therefor. The relationship between the upper blade and the lower blade of the conventional slitter is opposite to that of the conventional method. I cut it for In other words, in this example, in a state where the paper is mounted on the wallpaper gluing machine, the axial centers are substantially parallel to each other on both sides in the wallpaper feeding direction,
A cutting blade (31A) is provided on each of the mounting shafts (32A) and (32B) arranged at a position substantially orthogonal to the feeding direction of the wallpaper.
(31B) is attached to the center of the wallpaper by being staggered and pressed against each other in an inner and outer positional relationship, and the outer cutting blade (31A) has its axial center on the back side of the wallpaper. It is arranged as follows.

In the structure of the slitter (3),
As illustrated in FIG. 4, a stay (5) and a roller are arranged before and after the cutting blades (31A) and (31B), and the wallpaper (4) is placed.
Is the upper guide roller (34) in the traveling path
Alternatively, an auxiliary roller may be provided so as to feed the wallpaper in parallel with the guide roller (34), and the wallpaper may be fed by sandwiching the upper and lower rollers. Of course, various other means are appropriately employed to prevent the wallpaper from sagging or wrinkling.

In this example, the inner cutting blade (31)
B) is configured to rotate together with the guide roller (34) by its mounting shaft (32B) similarly to the conventional configuration, and is pressed against the outer cutting blade (31A) by a spring elastic material. There are. As the slitter (3) having the above-described configuration, a structure in which the conventional slitter shown in FIG. 9 is attached to a gluing machine may be modified. That is, as illustrated in FIG. 5, for example, a slitter having a blade configuration similar to that of the related art is attached to the gluing machine main body so that the back surface of the wallpaper passes upward.

In order to attach the slitter (3) to the frame or the like, engaging means, for example, hooks, snap locks, etc. may be appropriately arranged for attachment to the gluing machine main body. FIG. 6 shows another embodiment of the present invention. In this example,
In the state of being installed in the wallpaper gluing machine, the mounting shaft (32) is disposed at a position where the axial centers are substantially parallel to each other on both sides in the wallpaper feeding direction and are substantially perpendicular to the wallpaper feeding direction.
A) (32B) each has a cutting blade (31A) (31
B) is attached to the center of the wallpaper in a staggered manner with respect to the center of the wallpaper in the same manner as described above, and the outer cutting blade (31A) has its axial center positioned at the surface of the wallpaper. And the axial center of the outer cutting blade (31A) is inclined away from the wallpaper surface toward the center of the wallpaper.

Mounting shaft (32B) for inner cutting blade (31B)
Is also similarly inclined, and the mounting shaft (32B)
Since this also rotates, in this example, the rotation is transmitted by the universal joint (6). Further, as shown in an enlarged manner in FIG.
B), and the press roller (33) is provided with a taper,
The wallpaper (4) is sent flat.

As shown in FIG. 3, when the center of the outer cutting blade (31A) is positioned on the back side of the wallpaper, the axial center of the outer cutting blade (31A) is Tilting closer toward the center of the wallpaper is shown as another example. FIG. 8 shows still another embodiment. In this case, the outer cutting blade (31A) is arranged so that its axial center is on the surface (41) of the wallpaper (4). In addition, the inner cutting blade (31B) has a surface that is pressed against the outer cutting blade (31A) and is attached to the mounting shaft (32B).
(7) is provided so as to be hollowed toward the center of the axis.

In this case, also in this case, the outer cutting blade (31)
The mounting shaft (32A) of A) is actually slightly inclined. The configuration of the slitter (3) can be exemplified as described above. However, the present invention is not limited to the cutting of the both ears of the wallpaper (4) by the slitter (3), and the present invention provides the specific examples described above. Cutting method is realized.

In other words, this is a method of cutting the wallpaper using cutting blades which are mounted on the front and back sides of the wallpaper at positions substantially perpendicular to the feeding direction of the wallpaper and which are staggered and pressed in contact with each other. Cutting is performed so that the center of the mounting axis of the cutting blade outside the center of the wallpaper is on the back side of the wallpaper, or the cutting blade is outside the center of the required wallpaper to be cut. Cut the tape with the center of the mounting shaft of the outside cutting blade inclined toward the center of the wallpaper away from the surface of the wallpaper so that the center of the mounting shaft is on the surface of the wallpaper, or The center of the axis of the mounting shaft of a certain cutting blade is on the back side of the wallpaper, and the center of the axis of the outer cutting blade is inclined toward the center of the wallpaper so as to approach the wallpaper surface, and further cuts. In the center of the required wallpaper to be cut And as the axial center of the mounting shaft of the cutting blade on the outside is the surface side of the wallpaper, the inside of the cutting blade,
The cutting is performed by inclining the surface pressed against the outer cutting blade so as to be cut off toward the center of the axis.

In any case, in the present invention,
As illustrated in FIG. 2, in the cut portion, the wallpaper fits tightly on the surface, and even if the wallpaper is thick, the problem due to the conventional aperture does not occur. And of course,
For the wallpaper obtained in the present invention, a method of gluing the wallpaper is also provided by the present invention.

Of course, the present invention is not at all limited to the above examples, and various embodiments are possible. Also,
The phrase "wallpaper" in the present invention is considered as various cloths for interiors of houses and the like, and is considered as a cross member applied to an appropriate portion such as a wall, a ceiling, and a counter. Things are inclusive.

[0034]

As described in detail above, according to the invention of the present application, there is no gap between the walls when the wallpaper is attached, and the wallpaper and the means for cutting the wallpaper are good in terms of design and visual quality. Provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a cross section of a cut portion of wallpaper according to the present invention.

FIG. 2 is a cross-sectional view illustrating a state in which the wallpaper of FIG. 1 is stuck adjacently.

FIG. 3 is a front view illustrating a slitter as an embodiment.

FIG. 4 is a side view illustrating the relationship between the slitter of FIG. 3 and wallpaper.

FIG. 5 is a side view showing an embodiment of the present invention in which the mounting of the conventional slitter is changed.

FIG. 6 is a front view showing another embodiment.

FIG. 7 is an enlarged sectional view of the example of FIG. 6;

FIG. 8 is an enlarged sectional view showing still another example.

FIG. 9 is a side view showing attachment of a conventional slitter to a gluing machine.

FIG. 10 is a perspective view illustrating a conventional slitter.

FIG. 11 is a front view corresponding to FIG. 10;

FIG. 12 is a sectional view of a conventional slitter.

FIG. 13 is a sectional view showing a cut section of a conventional wallpaper.

FIG. 14 is a cross-sectional view showing a current state of application of wallpaper.

FIG. 15 is a sectional view considered to be an ideal state.

FIG. 16 is a cross-sectional view showing that there is a problem even in the ideal state of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 material roll 2 gluing machine 3 slitter 31 cutting blade 31A outer cutting blade 31B inner cutting blade 32A mounting shaft 32B mounting shaft 33 holding roller 34 guide roller 35 cover 36 fixing stay 37 hook 38 gripper 39 driving connection gear 4 wallpaper 41 Front 42 Back 5 Stay 6 Universal joint 7 Inclined surface

[Procedure amendment]

[Submission date] October 22, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

As for the relationship with the front and back surfaces of the wallpaper, the axial center of the mounting shaft (32A) of the outer cutting blade (31A) as the upper blade is located on the front surface side of the wallpaper, and the inner cutting blade (31B), The mounting shaft (32B) of the blade is connected to the pressing roller (3).
3) And it is located on the back side of the wallpaper together with the guide roller (34). The attachment shafts (32A) and (32B) are provided with covers (35) on both sides of the slitter (3) .
It is supported by the frame (35A) and the fixing stay (36). The slitter (3) is attached to the sizing machine by a hook (37), a gripper (38) or the like provided on the frame (35A) to which the cover (35) is attached. The lower connection shaft (32B) is rotated by the rotation of the drive connection gear (39) interlocking with the gear of the lower blade, and the lower blade, that is, the inner cutting blade (31) is rotated.
B) is rotated.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shin Yasushi Shin 190, Tatsuno-cho, Tatsuno-cho, Tatsuno-shi, Hyogo Pref.

Claims (15)

[Claims] 1. A wallpaper characterized in that a back surface side is shorter than a front surface side with respect to a center portion of the wallpaper in an end cross section. 2. The wallpaper according to claim 7, wherein in the cross section at the end, the back side is shorter than the front side relative to the center of the wallpaper, and an inclined surface is formed from the front side to the back side. 3. The wallpaper according to claim 1, wherein the back surface is glued. 4. A method for cutting a wallpaper, wherein the wallpaper is cut by a cutting blade such that a back surface side is shorter than a front surface side with respect to a center portion of the wallpaper in an end section. 5. The cutting method according to claim 3, wherein the wallpaper is cut such that the rear surface side is shorter than the front surface side with respect to the center portion of the wallpaper in the end cross section, and an inclined surface is formed from the front surface side to the rear surface side. Method. 6. The cutting method according to claim 3, wherein the cutting is performed by a rotary cutting blade. 7. The cutting method according to claim 3, wherein the cutting is performed by a cutting blade pressed in a staggered manner. 8. The method according to claim 6, wherein the wallpaper is cut by staggered pressure-contacting cutting blades arranged on the mounting shaft at positions substantially orthogonal to the feeding direction of the wallpaper on each of the front and back sides of the wallpaper, A wallpaper cutting method characterized in that the wallpaper is cut such that the center of the mounting shaft of the cutting blade located outside the center of the required wallpaper to be cut is on the back side of the wallpaper. 9. A method of cutting a wallpaper by a staggered cutting blade in which a mounting shaft is disposed at a position substantially orthogonal to a feeding direction of the wallpaper on each of the front and back sides of the wallpaper,
The center of the mounting axis of the cutting blade that is outside the center of the required wallpaper to be cut should be on the front side or the back side of the wallpaper, and if it is arranged on the front side, the mounting axis of the outer cutting blade. It is characterized in that the center of the axis is inclined away from the wallpaper surface toward the center of the wallpaper, and when placed on the back side, the axis center is inclined so as to approach the wallpaper surface toward the center of the wallpaper and cut. How to cut wallpaper. 10. A method of cutting a wallpaper by a cutting blade pressed in a staggered manner and having a mounting shaft disposed at a position substantially orthogonal to a feeding direction of the wallpaper on each of the front and back sides of the wallpaper. So that the center of the mounting axis of the cutting blade outside the center of the wallpaper is on the surface of the wallpaper,
A method of cutting a wallpaper, wherein the inner cutting blade is cut while being inclined so that the surface pressed against the outer cutting blade is cut off toward the axis center. 11. When mounted on the wallpaper gluing machine, mounting is performed at a position where the axial centers are substantially parallel to each other and substantially orthogonal to the wallpaper feeding direction on both sides of the wallpaper feeding direction. On each of the shafts, a cutting blade is a slitter for binaural cutting of wallpaper, which is attached by being staggered and pressed against each other in an inner and outer positional relationship with respect to a center portion of the wallpaper. Characterized in that the cutting blade of (1) is arranged so that its axial center is on the back side of the wallpaper. 12. In a state in which the apparatus is arranged in a wallpaper gluing machine, mounting is performed in such a manner that axial centers are substantially parallel to each other on both sides of the wallpaper feeding direction and are substantially orthogonal to the wallpaper feeding direction. On each of the shafts, a cutting blade is a slitter for binaural cutting of wallpaper, which is attached by being staggered and pressed against each other in an inner and outer positional relationship with respect to a center portion of the wallpaper. The cutting blade is arranged so that its axis center is on the front side or back side of the wallpaper, and the axis center of the outer cutting blade is directed toward the center of the wallpaper when this is on the front side of the wallpaper. A slitter for a wallpaper sizing machine characterized in that the slitter is inclined away from the wallpaper surface, and is inclined toward the center of the wallpaper when approaching the rear surface side. 13. When mounted on the wallpaper sizing machine, the mounting is such that the axial centers are substantially parallel to each other and substantially orthogonal to the wallpaper feeding direction on both sides of the wallpaper feeding direction. On each of the shafts, a cutting blade is a slitter for binaural cutting of wallpaper, which is attached by being staggered and pressed against each other in an inner and outer positional relationship with respect to a center portion of the wallpaper. The cutting blades are arranged so that the axis center is on the surface side of the wallpaper, and the inner cutting blade is as if the surface pressed against the outer cutting blade was hollowed toward the axis center. Slitter for wallpaper gluing machine characterized by being inclined. 14. A wallpaper gluing method, comprising gluing the back surface of the wallpaper according to claim 1 or 2. 15. A wallpaper is supplied by a feed roller,
The gluing method according to claim 14, wherein automatic gluing is performed by a gluing roller.