Wall paper

Abstract

To provide wall paper which facilitates alignment.SOLUTION: Belt-like wall paper 10 has a constant width size and unit patterns P which are prescribed patterns repeatedly formed by a plurality of units in a longitudinal direction. The wall paper 10 is an executable region in which a pattern 2 is formed up to width both ends, and has, for each unit pattern P, at least one pattern alignment mark 3 indicating the position of a specific part of the unit pattern P but not constituting a part of the unit pattern P at each of both the width ends of a surface side in which the pattern 2 is formed. The pattern alignment mark 3 is formed by using a removable material.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to wallpaper. [Background technology]

[0002] Conventionally, the overlapping application method has been known as a method for applying wallpaper to indoor walls and the like. In this overlapping application method, the edges of adjacent wallpapers are overlapped by several centimeters, the overlapping portions of both wallpapers are cut with a blade such as a cutter, unnecessary portions of both wallpapers are removed, and then the wallpapers are attached to the wall and the like with a joint roller or the like (see, for example, Patent Document 1). In addition, a butt joint method is also known in which, when attaching wallpaper to wallpaper attached to a wall surface, the edges of adjacent wallpapers are butted together without overlapping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 2-106500 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in any application method, such as the overlap application method or the butt application method, it is necessary to apply adjacent wallpaper in parallel without any gaps. In particular, in the case of patterned wallpaper, it is necessary to match the patterns. Therefore, wallpaper that allows easy alignment has been desired.

[0005] The present invention has been made in view of the above-mentioned points, and has an object to provide wallpaper that allows easy alignment. [Means for solving the problem]

[0006] According to one aspect of the present invention, there is provided a strip-shaped wallpaper having a constant width dimension, at least one end of the width direction being an area that can be applied up to that end, and having alignment marks on both ends of the width direction on the front side, the alignment marks being formed using a removable material.

[0007] According to another aspect of the present invention, there is provided a strip-shaped wallpaper having a constant width dimension, at least one end of the width direction being an area that can be worked up to that end, and having alignment marks on both ends of the width direction on the front side, the alignment marks being formed using a material containing a luminescent agent. Effect of the Invention

[0008] According to one aspect of the present invention, wallpaper that allows easy alignment can be obtained. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a plan view illustrating an example of wallpaper according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is an explanatory diagram for explaining a method for manufacturing wallpaper according to the first embodiment of the present invention. [Diagram 3] FIG. 1 is an explanatory diagram for explaining a wallpaper application method according to a first embodiment of the present invention. [Figure 4] FIG. 4 is a plan view illustrating another example of wallpaper according to the first embodiment of the present invention. [Diagram 5] FIG. 11 is a plan view illustrating an example of wallpaper according to a second embodiment of the present invention. [Figure 6] FIG. 11 is an explanatory diagram for explaining a method for manufacturing wallpaper according to a second embodiment of the present invention. [Figure 7] FIG. 11 is an explanatory diagram for explaining a wallpaper application method according to a second embodiment of the present invention. [Figure 8] FIG. 1 is an explanatory diagram for explaining a conventional wallpaper application method. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Next, an embodiment of the present invention will be described below with reference to the drawings. Here, the drawings are schematic, and the relationship between thickness and planar dimensions, the thickness ratio of each layer, etc. differ from the actual ones. Furthermore, the embodiments shown below are examples of configurations for embodying the technical idea of ​​the present invention, and the technical idea of ​​the present invention is not limited to the materials, shapes, structures, etc. of the components described below. The technical idea of ​​the present invention can be modified in various ways within the technical scope defined by the claims.

[0011] [First embodiment] First, a first embodiment of the present invention will be described.

[0012] <Wallpaper composition> FIG. 1 is a plan view showing a schematic configuration of a wallpaper 10 according to one embodiment of the present invention. In Fig. 1, reference numeral 1 denotes a wallpaper body, 2 denotes a pattern represented by the wallpaper body, and 3 denotes a pattern alignment mark. In wallpaper 10, a pattern alignment mark (alignment mark) 3 is formed on the outermost layer of the wallpaper body 1 having a pattern 2 on the pattern 2 side. The wallpaper 10 has a constant width, and the width of the wallpaper 10 is the same as the effective width L1 of the wallpaper 10 that can be applied. In other words, the wallpaper 10 does not have edges, and the pattern is formed up to the widthwise ends of the wallpaper 10. The width of the wallpaper 10 is, for example, 920 mm, which conforms to the effective width of wallpaper specified in JIS A 6921. Note that the effective width L1 of the wallpaper 10 (the width of the wallpaper 10) is not limited to 920 mm, and may be any width, such as 300 mm, 600 mm, or 1000 mm.

[0013] (Wallpaper itself) The wallpaper body 1 may have any configuration as long as it has a constant width dimension, is strip-shaped, and can be used as wallpaper. The outermost layer of the wallpaper body 1, i.e., the layer on which the pattern matching marks 3 are formed, is made of a material such as polyvinyl chloride resin, non-polyvinyl chloride resin, paper, etc. on which the pattern matching marks 3 can be printed and which allows the pattern matching marks 3 to be erased.

[0014] (Design) The pattern 2 is a pattern design represented by the wallpaper body 1, and a predetermined pattern is taken as one unit, and this pattern is repeated multiple times in the longitudinal direction of the wallpaper body 1. In Fig. 1, a "tree with a star in the upper left" is taken as a partial pattern f, and partial pattern f1, the left half of which is not drawn, partial pattern f2, which is positioned away from partial pattern f1 in the width direction of the wallpaper 10, partial pattern f3, which is formed between partial patterns f1 and f2 and below partial patterns f1 and f2, and partial pattern f4, which is positioned away from partial pattern f3 in the width direction and has a right half that is not drawn, are taken as one unit pattern P, and this unit pattern P is repeated multiple times in the longitudinal direction of the wallpaper body 1.

[0015] Furthermore, when two wallpapers 10 are arranged with their ends butted against each other, the longitudinal positions of pattern 2 are adjusted so that partial pattern f1, the left half of which is unpainted, and partial pattern f4, the right half of which is unpainted, are continuous to form partial patterns of the same shape as partial patterns f2 and f3. The design 2 may be drawn using any material, but it is preferable that the design is formed using a material that will not be erased when wiped with water as described below.

[0016] (Pattern matching mark) The pattern matching mark 3 is formed at a position indicating a specific portion of the pattern 2, and is formed using a water-soluble material. Specifically, the pattern matching mark 3 is formed from a water-soluble material. As the water-soluble material, a colorant mainly composed of polyvinyl alcohol is particularly preferable. Here, water-soluble means soluble in water. Although a dark color is acceptable for the pattern matching mark 3, it is preferable that the pattern matching mark 3 is formed in a light color such as white, gray, or beige so that it can be easily removed.

[0017] The pattern alignment mark 3 is formed by using a printing method such as inkjet printing or stamp printing. There is at least one pattern matching mark 3 for each unit pattern P at each of both widthwise ends of the wallpaper body 1. In Fig. 1, the pattern matching mark 3 is formed near the bottom end (3a) of the partial pattern f1 drawn on the left end of the wallpaper body 1, and near the bottom end 3b of the partial pattern f4 drawn on the right end of the wallpaper body 1. The pattern matching mark 3 is formed in a form that does not form part of the pattern 2, and is, for example, a line segment (broken line) that starts at the left end or right end of the wallpaper body 1 and extends in a direction perpendicular to the longitudinal direction of the wallpaper body 1 toward the other end.

[0018] In this embodiment, the pattern matching mark 3 is provided on the left end side of the wallpaper body 1 (3a) and on the right end side (3b) of the unit pattern P, but this is not limited thereto. A plurality of pattern matching marks 3 may be provided on each of the left end side and the right end side of the wallpaper body 1, and one or a plurality of pattern matching marks 3 may be provided on each of the left end side and the right end side depending on the arrangement of the longitudinal pattern in the unit pattern P. In short, when the wallpapers 10 are butted together and pasted, it is sufficient that the pattern matching mark 3 can be used as a guide when pasting the patterns 2 of the two adjacent wallpapers 10 so that they are continuous. As shown in FIG. 1, by using a line segment starting from the end of the wallpaper body 1 as the pattern matching mark 3, the two wallpapers 10 can be butted together and positioned so that the line segments as the pattern matching mark 3 are continuous, thereby enabling more accurate pattern matching.

[0019] Here, a case has been described in which a line segment extending in a direction perpendicular to the longitudinal direction of the wallpaper body 1 is used as the pattern matching mark 3, but this is not limiting. For example, a triangle may be used as the pattern matching mark 3, and the apex of the triangle may be formed so as to overlap the end of the wallpaper body 1, or an arrow may be used, and the tip of the arrow may be formed so as to overlap the end of the wallpaper body 1.

[0020] Also, here, the pattern matching mark 3 is formed so as to overlap with the end of the wallpaper body 1, but it does not necessarily have to overlap with the end; what is important is that when the two sheets of wallpaper 10 are butted together, the pattern matching mark 3 can be used as a guide to adjust the longitudinal position so that the patterns of the two sheets of wallpaper 10 are continuous, and the pattern matching mark 3 does not have to be formed at the end, but may be formed in any position, such as near the left or right end.

[0021] In addition, the pattern matching mark 3 indicates the longitudinal position of the wallpaper body 1, but is not limited thereto. In the case of the wallpaper 10 shown in FIG. 1, the pattern includes a "tree" and the "tree" is drawn facing in one direction, so the up-down direction of the wallpaper 10 can be recognized by looking at the direction of the "tree". Therefore, in the wallpaper 10, a mark indicating the up-down direction of the wallpaper body 1 is not drawn as the pattern matching mark 3, but in the wallpaper body 1 shown in FIG. 1, a mark indicating the up-down direction of the wallpaper body 1 and a mark serving as a clue for pattern matching may be drawn as the pattern matching mark 3, and these marks may be drawn as one mark or as separate marks. For example, a line segment parallel to the longitudinal direction of the wallpaper body 1 may be formed as the mark indicating the up-down direction of the wallpaper body 1, and a line segment extending from the end of the wallpaper body 1 in a direction perpendicular to the longitudinal direction of the wallpaper body 1 may be formed as the mark serving as a clue for pattern matching, and these may be formed by connecting them or formed separately.

[0022] <Wallpaper manufacturing method> The effective width L1 of the wallpaper 10 is set to 920 mm, for example, in accordance with JIS A 6921. The wallpaper body 1 is formed by, for example, laminating a base material, a foamed resin layer, a pattern printed layer, and a surface protective layer in this order, and a pattern matching mark 3 is printed on the surface of the surface protective layer opposite to the pattern printed layer. Note that, here, a case where the wallpaper body 1 is applied to a wallpaper body 1 in which a base material, a foamed resin layer, a pattern printed layer, and a surface protective layer are laminated in this order will be described, but the configuration of the wallpaper body 1 is not limited to this, and any configuration may be used as long as it can be used as wallpaper. In addition, the specifications of the wallpaper body 1 may be configured as necessary such that a base material, a foamed resin layer, and a pattern printed layer are laminated in this order, and a pattern matching mark 3 is printed on the surface of the pattern printed layer opposite to the foamed resin layer.

[0023] First, as shown in FIG. 2, a sheet-like substrate having a width of, for example, about 930 mm (hereinafter referred to as substrate width L2) is prepared, taking into consideration the desired effective width L1 (920 mm) of the wallpaper 10 and a margin α. A layer of a foaming agent-containing composition that will become a foamed resin layer is formed on one surface of the substrate, and the substrate is made into a sheet state.

[0024] Next, a pattern is printed on the surface of the layer of the foaming agent-containing composition opposite to the substrate using a printing method to form a pattern-printed layer. The pattern of this pattern-printed layer is, for example, as shown in Figure 1, a predetermined pattern as a unit pattern P, and this unit pattern P is repeated multiple times in the longitudinal direction of the substrate. The pattern-printed layer is printed so as to be located at the center in the width direction of the substrate, and is printed over the entire width (hereinafter referred to as the printing width L3) equivalent to the sum of the effective width L1 and the margin β.

[0025] Next, for example, an acrylic resin, a polyvinyl chloride resin, or the like is applied onto the design print layer to form a surface protection layer. Next, the slit lines 31 and the pattern matching marks 3 are printed on the surface protective layer using a printing method. The slit lines 31 and the pattern matching marks 3 may be printed in a single printing process step or may be printed in separate printing processes, but at least the pattern matching marks 3 and the slit lines 31 are printed using water-soluble ink.

[0026] The slit lines 31 are lines that indicate the cutting positions when cutting wallpaper of effective width L1 from a laminate formed on a base material having base width L2, and are printed at positions 460 mm apart on both sides in the width direction, starting from the center of the width direction of the base material. These slit lines 31 are lines that are used when cutting out the wallpaper, and are not needed after shipment. 2, the pattern alignment mark 3 is a line segment (broken line) that is formed so that one end overlaps with the slit line 31 and the other end extends perpendicularly to the longitudinal direction of the slit line 31 toward the other slit line 31. The position where the line segment as the pattern alignment mark 3 overlaps with the slit line 31 is a position that serves as a clue for vertical alignment that is set in advance according to the pattern of the pattern-printed layer.

[0027] In addition, if the position of the slit line 31 can be determined from the display position of the pattern matching mark 3, the slit line 31 does not necessarily have to be provided. In other words, as shown in FIG. 1, the pattern matching mark 3 is a line segment, one end of which is formed starting from the end of the wallpaper body 1, i.e., the slit line 31, so that one end of the line segment as the pattern matching mark 3 indicates the position of the slit line 31. Therefore, the line segment connecting one end of the pattern matching marks 3 formed on the same side in the longitudinal direction on the substrate end side represents the slit line 31. Therefore, if it is communicated to the installer of the wallpaper 10 that one end of the line segment representing the pattern matching mark 3 indicates the position of the slit line 31, the slit line 31 does not necessarily have to be provided.

[0028] Next, the layer of the foaming agent-containing composition is foamed by heating to form a foamed resin layer, and then embossing is performed from the surface protective layer side with an embossing roll to form an embossed pattern. At this point, the laminate that will become wallpaper is in a state of being formed on a substrate having a substrate width L2, which is wider than the effective width L1.

[0029] Next, the laminate having the base material width L2 is cut along the slit lines 31, and the regions on the end sides of the slit lines 31 are cut off. This results in the cutting out of the wallpaper 10 having the effective width L1. If the slit lines 31 remain after both ends of the base material have been cut off from the slit lines 31, the remaining slit lines 31 may be erased at this point by rubbing with a sponge or the like that has been moistened with water and appropriately wrung out.

[0030] Here, the printing width L3 is greater than the effective width L1. Therefore, the cut wallpaper 10 has a pattern printed all over the width direction to both ends, and has an effective width L1 that can be used for construction. In other words, the wallpaper 10 shown in FIG. 1 is obtained, with the pattern printed all over the width direction to both ends. Here, the slit lines 31 and the pattern alignment marks 3 are printed on the surface protection layer, but if there is no surface protection layer, the slit lines 31 and the pattern alignment marks 3 can be formed on the pattern printed layer, which is the outermost layer.

[0031] <Construction method> As shown in FIG. 3, the wallpaper 10 according to this embodiment has a pattern drawn to both ends in the width direction. When installing wallpaper 10, first, the first piece of wallpaper 10a is pasted on the wall, taking into consideration the top and bottom, as shown in Fig. 3. In the case of wallpaper 10 in Fig. 1, "trees" are depicted as partial patterns f1 to f4, so the top and bottom of wallpaper 10a can be determined from the orientation of the "trees."

[0032] Next, as shown in Fig. 3, the second wallpaper 10b is placed, for example, on the right side of wallpaper 10a, and the vertical position is adjusted so that the pattern matching mark 3b on the right side of wallpaper 10a and the pattern matching mark 3a on the left side of wallpaper 10b are continuous, and wallpaper 10b is pasted in this position. As a result, the partial pattern f4 of wallpaper 10a and the partial pattern f1 of wallpaper 10b are pasted continuously without misalignment at the boundary between wallpapers 10a and 10b, forming a partial pattern with the same shape as partial patterns f2 and f3.

[0033] Other wallpapers 10 are pasted in the same manner, and after a predetermined number of wallpapers 10 have been pasted, all of the pattern matching marks 3 are rubbed off, for example, with a sponge that has been moistened with water and appropriately wrung out. Since the pattern matching marks 3 are drawn with water-soluble ink, they will disappear when rubbed with a sponge or the like. This leaves the wallpaper 10 having the pattern design of the wallpaper body 1 without the pattern matching marks 3 drawn on it in the applied state.

[0034] In addition, since the wallpaper 10 according to this embodiment has no tabs on either end in the width direction, there is no need to perform a step of removing the tabs after the wallpaper 10 is attached.

[0035] <Effects> In the wallpaper 10 according to this embodiment, the pattern matching mark 3 is drawn within the region of the effective width L1 that can be installed. Therefore, the pattern matching mark 3 can be used as a clue to easily perform positioning, and since there is no need to provide ears, installation can be performed using the butt joint method. In other words, in the case of wallpaper with a pattern, it is necessary to provide the pattern matching mark 3 for pattern matching, and in the past, since the pattern matching mark 3 is provided on the ears, it was difficult to adopt the butt joint method. In addition, it is also possible to match patterns without providing a pattern matching mark by matching the eyes, but this depends on the skill of the wallpaper installer himself, and so installation time may be long.

[0036] The wallpaper 10 of this embodiment does not change the display position of the conventional pattern matching mark 3 in the longitudinal direction of the wallpaper, but changes the display position in the width direction, and the pattern matching mark 3 is formed within the area of ​​the effective width L1 where work can be performed and does not have lugs, so that a butt joint construction method can be used. Furthermore, at the factory shipping stage, the wallpaper 10 only needs to have the effective width L1 that can be used for construction, and there is no need to provide it with edge sections. As a result, the amount of material required for production at the factory can be reduced by the amount corresponding to the edge sections, which in turn reduces the effort and energy required for production.

[0037] In addition, since there is no need for the contractor to cut off the selvage, the amount of waste generated during construction, including the cut-off selvage, can be reduced. Furthermore, since there is no need to apply glue to the selvage, the cost of glue can be reduced accordingly, and the labor required to cut off the selvage and the materials required for construction can be reduced. Furthermore, since there is no need to provide tabs, the wallpaper 10 can be made lighter and smaller at the time of shipment, improving transportation efficiency and being environmentally friendly.

[0038] That is, in the past, patterned wallpaper had pattern matching marks 12a and 12b printed on the edges as shown in Fig. 8. The contractor aligned the patterns so that the vertical positions of the pattern matching marks 12a and 12b match, and aligned the patterns in the width direction by visual inspection, to avoid misalignment of the patterns. After positioning, the overlapping wallpapers 11a and 11b are cut to separate the edges. As a result, the edges of the wallpapers 11a and 11b are removed, and the widths of the wallpapers 11a and 11b are each the effective width L1, and the wallpapers 11a and 11b are butted together so that their patterns are continuous.

[0039] At this time, the cut-off edge portion becomes waste. For example, in FIG. 8, if the base material width L2 is about 980 mm and the effective width L1 is 920 mm, the left and right ends of each of the wallpapers 11a and 11b are waste equivalent to a width ΔL (for example, 60 mm), resulting in a loss. In addition, the cost of materials for the base material used to form the wallpaper, the ink for printing the pattern, the paper tube, packaging materials, etc., and the energy loss are incurred in proportion to the loss.

[0040] In contrast, the wallpaper 10 according to this embodiment does not require the formation of edge portions, and therefore the base material width L2 can be shorter, making it possible to reduce the material costs and energy waste of the wallpaper. Furthermore, conventionally, cutting off the edges generates waste of approximately 20-60mm (loss rate of 3-9%), and this waste also has application glue applied to it. In other words, the waste part is coated with application glue, which is wasted. Furthermore, when using the overlap application method, joint cut tape may be used to install the wallpaper without soiling the surface of the wallpaper itself, and also, because the cutter blade is inserted directly into the application surface such as the wall, a type of tape called joint underlay tape may be used to avoid damaging the base. In addition to the cost of these materials, the contractor must also bear the cost of disposing of these materials.

[0041] Furthermore, since the pattern alignment marks 3 are formed by a printing process as one step in the manufacturing line of the wallpaper 10, it is possible to improve productivity and positional accuracy.

[0042] <Modification> (1) In the above embodiment, the pattern matching mark 3 is formed using water-soluble ink, and the pattern matching mark 3 is erased after application, but the present invention is not limited to this. For example, pattern matching marks 3 such as lines or arrows may be printed on an adhesive member such as an adhesive sheet, and this adhesive member may be attached to the outermost layer of the pattern side of the wallpaper body 1, thereby forming the pattern matching marks 3 on the wallpaper body 1, and after construction, the adhesive member may be peeled off to erase the pattern matching marks 3. Also, for example, the pattern matching mark 3 may be formed using ink containing a luminescent agent. For example, a fluorescent agent that is invisible to the naked eye may be used as the luminescent agent, and the pattern matching mark 3 may be formed at a predetermined position using ink containing this fluorescent agent, and during construction, the pattern matching mark 3 may be visualized by irradiating the predetermined position with ultraviolet light using a black light. In this case, since the pattern matching mark 3 cannot be seen without ultraviolet irradiation, there is no need to erase the pattern matching mark 3.

[0043] (2) The width of the wallpaper 10 does not necessarily have to be 920 mm as specified by JIS A 6921, and can be applied when manufacturing wallpaper 10 of any width. By forming pattern alignment marks 3 at the pattern joint positions in the design and pattern design, the slit width, i.e., the width of the wallpaper 10, can be set as desired.

[0044] (3) The pattern matching marks 3 are formed by a printing process as one step in the manufacturing line for the wallpaper 10, but the present invention is not limited to this. For example, a line for printing the pattern matching marks 3 may be provided separately from the manufacturing line. Also, the pattern matching marks 3 may be formed in another step, such as a processing step or an inspection step, after the wallpaper 10 is cut out.

[0045] (4) The wallpaper 10 according to this embodiment does not have ears. Therefore, in order to protect both ends of the rolled wallpaper 10 from damage, cardboard or the like may be placed on both ends of the rolled wallpaper 10 as earmuffs during packaging.

[0046] (5) In the present embodiment, the case where the wallpaper 10 does not have ears on both the left and right ends has been described, but one of the left and right ends may have ears and the other may not. In this case, as shown in FIG. 4(a), pattern matching marks 3 may be formed at the left and right ends of the region of the effective width L1, and slit lines 31 may be formed as necessary on the side with the ears. In this case, at least one of the two ends of the wallpaper 10 does not have ears, so that it is possible to reduce materials and energy loss, improve transportation efficiency, and reduce the amount of waste generated during construction. In addition, when the wallpaper is rolled up, one end is an ear, so when the rolled wallpaper is placed upright, it is possible to prevent the workable part from being deformed or damaged by standing it up with the side with the ears facing down.

[0047] Furthermore, when only one side is provided with a selvedge, as shown in FIG. 4(b), pattern matching marks 3' may be formed on the selvedge portions, as in conventional wallpaper. In this case, the same effect as when pattern matching marks 3 are formed at the left and right ends of the area of ​​the effective width L1 can be obtained. When pattern matching marks 3' are formed on the selvedge portions as shown in FIG. 4(b), by cutting off the selvedge portions during construction, it is equivalent to erasing the pattern matching marks 3'. Therefore, the pattern matching marks 3' formed on the selvedge portions do not necessarily have to be made of a water-soluble erasable material.

[0048] Second Embodiment Next, a second embodiment of the present invention will be described.

[0049] <Wallpaper composition> FIG. 5 is a plan view illustrating a schematic configuration of a wallpaper 100 according to the second embodiment. 5, reference numeral 101 denotes a wallpaper body, and reference numeral 102 denotes an application auxiliary mark (alignment mark). In wallpaper 100, application auxiliary mark 102 is formed on the outermost layer of wallpaper body 101. The wallpaper 100 has a constant width, and the width of the wallpaper 100 is the same as the effective width L1 at which the wallpaper 100 can be applied. The width of the wallpaper 10 is, for example, 920 mm, in accordance with the effective width of wallpaper defined in JIS A 6921. Note that the effective width L1 of the wallpaper 100 (the width of the wallpaper 10) is not limited to 920 mm, and may be any width, such as 300 mm, 600 mm, or 1000 mm.

[0050] (Wallpaper itself) The wallpaper body 101 may have any configuration as long as it has a constant width dimension, is strip-shaped, and can be used as wallpaper. The wallpaper body 101 is a plain-colored wallpaper, and the outermost layer of the wallpaper body 101, i.e., the layer on which the installation auxiliary mark 102 is formed, is formed from a material such as polyvinyl chloride resin, non-polyvinyl chloride resin, paper, etc. on which the installation auxiliary mark 102 can be printed, and is also formed from a material from which the installation auxiliary mark 102 can be erased. The term "plain tone" as used herein may refer to white or a single color, or may refer to a pattern, woven fabric, painted fabric, or the like.

[0051] (Construction Support Mark) The construction aid mark 102 is formed using a water-soluble material, similar to the pattern matching mark 3. As the water-soluble material, a colorant mainly composed of polyvinyl alcohol is particularly preferable. Here, water-soluble means soluble in water. Although a dark color is acceptable for the construction aid mark 102, it is preferable that the construction aid mark 102 is formed in a light color such as white, gray, or beige so that the removal work can be easily performed, and it is preferable that the color tone is easily visible against the color tone of the wallpaper body 101. The construction assist mark 102 is formed by using a printing method such as inkjet printing or stamp printing.

[0052] At least one application auxiliary mark 102 is provided at each of both ends in the width direction of the wallpaper body 101. In Fig. 5, the application auxiliary marks 102 are provided so that the distance from a line segment perpendicular to the longitudinal direction of the wallpaper body 101 to the left and right ends is the same, and the application auxiliary marks 102 are repeatedly provided at intervals of Δp. Note that the application auxiliary marks 102 do not necessarily have to be arranged at constant intervals Δp in the longitudinal direction of the wallpaper body 101, and for example, the intervals Δp may be gradually narrowed as they approach the lower end of the longitudinal direction of the wallpaper body 101. The installation aid mark 102 is a mark used for temporarily positioning the wallpaper 100 when it is pasted.

[0053] The installation aid mark 102 is, for example, a line segment (dashed line) that starts at the left end or the right end of the wallpaper body 101 and extends toward the other end in a direction perpendicular to the longitudinal direction of the wallpaper body 101. The installation aid mark 102 is only required to draw attention to the temporary positioning when sticking the wallpaper 100, and does not necessarily have to be a line segment and may be, for example, a symbol or figure such as an arrow or a triangle.

[0054] <Wallpaper manufacturing method> The effective width L1 of the wallpaper 100 is set to 920 mm, for example, in accordance with JIS A 6921. The wallpaper body 101 is formed by, for example, laminating a base material, a foamed resin layer, a plain-toned layer, and a surface protective layer in this order, and the construction assistance mark 102 is printed on the surface of the surface protective layer opposite the plain-toned layer. Here, the case where the wallpaper body 1 is applied to a wallpaper body 1 in which the base material, the foamed resin layer, the plain-toned layer, and the surface protective layer are laminated in this order will be described, but the configuration of the wallpaper body 101 is not limited to this, and any configuration may be used as long as it can be used as wallpaper. In addition, the specifications of the wallpaper body 101 may be configured such that the base material, the foamed resin layer, and the plain-toned layer are laminated in this order, and the construction assistance mark 102 is printed on the opposite side of the plain-toned layer from the foamed resin layer.

[0055] First, a sheet-like base material having a width of, for example, about 930 mm (hereinafter referred to as base material width L2) is prepared, taking into consideration the desired effective width L1 (920 mm) of the wallpaper 100 and a margin α. A layer of a foaming agent-containing composition that will become a foamed resin layer is formed on one surface of the substrate, and the substrate is made into a sheet state.

[0056] Next, a plain-toned layer is formed on the surface of the foaming agent-containing composition layer opposite the substrate by printing, for example, a single color using a printing method. The plain-toned layer is printed so as to be positioned at the center of the substrate in the width direction, and is printed over the entire printing width L3, which corresponds to the sum of the effective width L1 and the margin. Next, for example, an acrylic resin, a polyvinyl chloride resin, or the like is applied onto the plain-colored layer to form a surface protective layer.

[0057] Next, the slit lines 31 and the application assist marks 102 are printed on the surface protective layer using a printing method. The slit lines 31 and the application assist marks 102 may be printed in a single printing process step or may be printed in separate printing processes, but at least the application assist marks 102 and the slit lines 31 are printed using water-soluble ink. 6, the installation auxiliary mark 102 is a line segment (broken line) that is formed so that one end overlaps with the slit line 31 and the other end extends perpendicularly to the longitudinal direction of the slit line 31 toward the other slit line 31. The position where the line segment as the installation auxiliary mark 102 overlaps with the slit line 31 is a position where the installation auxiliary mark 102 can be used as a guide for positioning the wallpaper.

[0058] It should be noted that, if the position of the slit line 31 can be determined from the display position of the application auxiliary mark 102, the slit line 31 does not necessarily have to be provided. That is, as shown in Fig. 6, the application auxiliary mark 102 is a line segment, one end of which is formed starting from the end of the wallpaper main body 101, i.e., the slit line 31, and therefore one end of the line segment as the application auxiliary mark 102 indicates the position of the slit line 31. Therefore, the line segment connecting one end of the application auxiliary marks 102 formed on the same side in the longitudinal direction on the substrate end side represents the slit line 31.

[0059] The layer of the foaming agent-containing composition is then heated to foam the layer of the foaming agent-containing composition to form a foamed resin layer, and then embossing is performed from the surface protective layer side with an embossing roll to form an embossed pattern. At this point, the laminate that will become the wallpaper is in a state of being formed on a substrate having a substrate width L2, which is wider than the effective width L1. Next, the laminate having the base material width L2 is cut along the slit lines 31, and the regions on the end sides of the slit lines 31 are cut off. This results in the cutting out of plain wallpaper 100 having the effective width L1. If the slit lines 31 remain after both ends of the base material have been cut off from the slit lines 31, the remaining slit lines 31 may be erased at this point by rubbing with a sponge or the like that has been moistened with water and appropriately wrung out.

[0060] Here, the printing width L3 is greater than the effective width L1. Therefore, the cut wallpaper 100 has a plain-colored layer formed over the entire surface up to both ends in the width direction, and a plain-colored wallpaper 100 (FIG. 5) having an effective width L1 that can be used for construction is obtained. Here, the slit lines 31 and the construction auxiliary marks 102 are printed on the surface protective layer, but if there is no surface protective layer, the slit lines 31 and the construction auxiliary marks 102 can be formed on the plain layer, which is the outermost layer.

[0061] <Construction method> When installing the wallpaper 100, the first wallpaper 100a is attached to the wall as shown in Fig. 7. Next, the second wallpaper 100b is placed, for example, on the right side of the wallpaper 100a, and the top end of the wallpaper 100b is provisionally positioned so that the left side of the wallpaper 100b butts against the right side of the wallpaper 100a. Then, the wallpaper 100b is attached so that the left side of the wallpaper 100b butts against the right side of the wallpaper 100a and so that the installation assistance marks 102 of the wallpaper 100a and the wallpaper 100b are continuous with each other.

[0062] After the desired wallpaper 100 has been applied, all of the application auxiliary marks 102 are rubbed off, for example with a sponge that has been moistened with water and appropriately wrung out. This causes the application auxiliary marks 102 drawn with water-soluble ink to disappear. As a result, multiple plain wallpapers 100 without the application auxiliary marks 102 are installed by butt-joint application. In the second embodiment as well, the wallpaper 100 has no tabs on either end in the width direction, and therefore there is no need to perform a step of removing the tabs after the wallpaper 100 has been attached.

[0063] <Effects> (1) The wallpaper 100 according to the second embodiment has installation auxiliary marks 102 on both ends in the width direction. Therefore, when the wallpaper 100 is provisionally positioned, the installation auxiliary marks 102 in particular can alert the installer to thoroughly check that there are no overlaps, gaps, misalignments, or the like between the wallpapers. By making the installer recognize the occurrence of overlaps, gaps, misalignments, or the like at an earlier stage and allowing the installer to adjust the position, the provisional positioning can be easily performed and the time required for pasting can be shortened. In addition, since the construction aid mark 102 is printed with water-soluble ink, it can be removed after construction, so that no unnecessary construction aid mark 102 remains on the plain wallpaper 100.

[0064] (2) The wallpaper 100 has no tabs on either end of its width, so at the time of shipment from the factory, the wallpaper 100 only needs to have the effective width L1 for installation. As a result, the amount of material required during production at the factory can be reduced by the amount corresponding to the tabs, which in turn reduces the labor and energy required for production. Furthermore, because the wallpaper 100 does not have tabs, it can be made lighter and smaller at the time of shipment, improving transportation efficiency and being beneficial from an environmental perspective. In addition, since there is no need for the contractor to cut off the selvage, the amount of waste generated during construction, including the cut-off selvage, can be reduced. Furthermore, since there is no need to apply glue to the selvage, the cost of glue can be reduced accordingly, and the labor required to cut off the selvage and the materials required for construction can be reduced.

[0065] (3) Generally, in the case of plain wallpaper that does not require pattern matching, the width of the wallpaper at the time of production is 980 mm, and the width of the wallpaper at the time of shipment is also 980 mm, and the installer cuts it to the effective width L1, that is, 920 mm, before installation, and then applies glue and installs it. Therefore, glue is not applied to unnecessary parts, and joint underlay tape is also not required, but since the installer cuts it to the effective width of 920 mm, unnecessary parts such as edges end up as waste.

[0066] Therefore, by shipping plain wallpaper without selvedge and with an effective width of 920 mm, material costs and disposal costs can be reduced. In other words, by shipping plain wallpaper or wallpaper with a pattern with an effective width of 920 mm, it is possible to reduce the loss of the widthwise ends that become unnecessary during production, and both the manufacturer and the installer can reduce the burden and costs associated with unnecessary parts. In other words, the manufacturer can reduce materials and energy loss. In addition, the size and weight of each product can be reduced, improving transportation efficiency. It is also beneficial from the perspective of environmental consideration.

[0067] <Modification> (1) As with the pattern matching mark 3, the installation auxiliary mark 102 may be configured such that the installation auxiliary mark 102, such as a line or an arrow, is printed on an adhesive member such as an adhesive sheet, and this adhesive member is attached to the outermost layer of the wallpaper body 101, thereby providing the installation auxiliary mark 102 on the wallpaper body 101, and the installation auxiliary mark 102 is erased by peeling off the adhesive member after installation. Also, for example, the application assist mark 102 may be formed using ink containing a luminescent agent.

[0068] (2) The width of the wallpaper 100 does not necessarily have to be 920 mm as specified by JIS A 6921, and can be applied when manufacturing wallpaper 10 of any width. By forming construction assistance marks 102 at the pattern joint positions in the design and pattern design, the slit width, i.e., the width of the wallpaper 10, can be set as desired.

[0069] (3) The application auxiliary mark 102 is formed by a printing process as one step in the manufacturing line of the wallpaper 100, but the present invention is not limited to this. For example, a line for printing the application auxiliary mark 102 may be provided separately from the manufacturing line. Also, the application auxiliary mark 102 may be formed in another step, such as a processing step or an inspection step, after the wallpaper 100 is cut out.

[0070] (4) The wallpaper 100 does not have ears. Therefore, in order to protect both ends of the rolled wallpaper 100 from damage, cardboard or the like may be placed on both ends of the rolled wallpaper 100 as earmuffs during packaging.

[0071] (5) In this embodiment, the case where the wallpaper 100 does not have ears on both the left and right ends has been described. However, as with the wallpaper 10 in the first embodiment, one of the left and right ends may have ears and the other may not. In this case, the construction auxiliary mark 102 may be formed at the left and right ends of the effective width L1, and the slit line 31 may be formed on the side with the ears as necessary. At least one of the two ends of the wallpaper 100 does not have ears, so that the amount of material and energy loss can be reduced, transportation efficiency can be improved, and the amount of waste generated during construction can be reduced. In addition, when the wallpaper is rolled up, one end is an ear, so when the rolled wallpaper is placed upright, the side with the ears can be placed down to prevent the workable part from being deformed or damaged. Furthermore, when providing an edge on only one side, an installation auxiliary mark 102 may be formed on the edge portion as in conventional wallpaper, and since the installation auxiliary mark 102 formed on the edge portion will be subsequently cut off, it does not necessarily have to be formed from a water-soluble erasable material.

[0072] The present invention can have the following configurations, for example. (1) A strip of wallpaper with a constant width, At least one end side in the width direction is an area that can be applied up to that end, The sheet has alignment marks at both ends in the width direction on the front side, The alignment marks are formed using a removable material. (2) The wallpaper according to (1) above, wherein the removable material is a water-soluble material. (3) The wallpaper according to (1) above, wherein the removable material is a peelable adhesive material. (4) A strip of wallpaper with a constant width, At least one end side in the width direction is an area that can be applied up to that end, The sheet has alignment marks at both ends in the width direction on the front side, The alignment mark is formed using a material containing a luminescent agent. (5) The wallpaper according to (4) above, wherein the luminescent agent emits light when irradiated with ultraviolet light. (6) The wallpaper according to any one of (1) to (5) above, wherein both ends in the width direction are workable areas up to the ends. (7) The alignment mark is The wallpaper according to any one of (1) to (6) above, characterized in that the anti-reflective coating is formed on each of both widthwise ends of the workable area on the front side. (8) The wallpaper has a predetermined pattern as one unit, and the pattern is repeated in a number of units in the longitudinal direction; The wallpaper according to any one of (1) to (7) above, characterized in that the alignment mark is a mark that indicates the position of a specific part of the pattern and does not constitute a part of the pattern, and at least one alignment mark is provided for each unit. (9) The wallpaper according to any one of (1) to (7) above, characterized in that it is a plain wallpaper. [Explanation of symbols]

[0073] 1, 101 Wallpaper body 2 Design 3 Pattern matching mark 10, 100 wallpapers 102 Construction assistance mark

Claims

1. A strip of wallpaper with a constant width, At least one end side in the width direction is an area that can be applied up to that end, The sheet has alignment marks at both ends in the width direction on the front side, The alignment marks are formed using a removable material.

2. 2. The wallpaper of claim 1, wherein the removable material is a water-soluble material.

3. 2. The wallpaper of claim 1, wherein the removable material is a peelable adhesive member.

4. A strip of wallpaper with a constant width, At least one end side in the width direction is an area that can be applied up to that end, The sheet has alignment marks at both ends in the width direction on the front side, The alignment mark is formed using a material containing a luminescent agent.

5. 5. The wallpaper according to claim 4, wherein the luminescent agent emits light when irradiated with ultraviolet light.

6. 6. The wallpaper according to claim 1, wherein both ends in the width direction are workable areas up to the ends.

7. The alignment mark is 6. The wallpaper according to claim 1, wherein the anti-reflection layer is formed on each of both widthwise ends of the workable area on the front surface side.

8. The wallpaper has a predetermined pattern as one unit, and the pattern is repeated in a number of units in the longitudinal direction; 6. The wallpaper according to claim 1, wherein the alignment mark is a mark that indicates the position of a specific portion of the pattern and does not constitute a part of the pattern, and at least one alignment mark is provided for each unit.

9. 6. The wallpaper according to claim 1, which is a plain wallpaper.

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