Method for manufacturing paper products, and paper products

Abstract

To provide a method for manufacturing paper products that are more suitable for use as finishing materials for interiors, and to provide paper products. [Solution] The method for manufacturing paper products comprises a mixing step P4 and a papermaking step P5. In the mixing step P4, soil and pigment are mixed into the paper raw material to obtain a base material. In the papermaking step P5, the base material is made by papermaking to produce paper products.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a paper product that can be used as a finishing material for interior decoration and the like, and to the paper product.

Background Art

[0002] As a related art, regarding finishing materials such as ceiling materials or wall materials, a finishing material using Japanese paper is known in order to meet the requirement of designability (see, for example, Patent Document 1). In the above related art, in order to realize a finishing material having excellent moisture absorption and desorption properties and excellent designability, the finishing material includes a substrate mainly made of diatomaceous earth or the like, a decorative layer, a Japanese paper layer using Japanese paper, and a protective layer.

[0003] In this finishing material, the decorative layer is a layer applied to the surface side of the substrate to decorate the surface of the substrate, the Japanese paper layer is a layer pasted on the decorative layer, and the protective layer is a layer applied to the surface of the Japanese paper layer. The Japanese paper layer has a large number of through holes in which the material fibers are intricately intertwined, and the fluffing is suppressed by the protective layer. Thereby, the decorative layer formed on the substrate through the through holes of the Japanese paper layer is colored.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the Japanese paper (Japanese paper layer) according to the above related art, although the fluffing is suppressed by the protective layer, since it is basically transparent, for example, when the Japanese paper is directly pasted on a base material such as a gypsum board, there is a problem that the joints and putty of the base material are likely to be seen through.

[0006] <000,031>The object of the present invention is to provide a method for manufacturing paper products and paper products that are more suitable for use as finishing materials for interiors and the like. [Means for solving the problem]

[0007] A method for manufacturing a paper product according to one aspect of the present invention comprises a mixing step and a papermaking step. In the mixing step, soil and pigment are mixed with paper raw materials to obtain a base material. In the papermaking step, the base material is papered to produce a paper product. [Effects of the Invention]

[0008] According to the present invention, a method for manufacturing paper products and paper products that are more suitable for use as finishing materials for interiors and the like can be provided. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic perspective view showing an example in which the paper product according to Embodiment 1 is used as an interior finishing material. [Figure 2] Figure 2 is a schematic perspective view showing an example of interior before the paper product described above is attached. [Figure 3] Figure 3 is a schematic perspective view showing an example of interior finishing in the process of attaching the aforementioned paper product. [Figure 4] Figure 4 is a photograph showing an example of using the same paper product as an interior finishing material. [Figure 5] Figure 5 is a schematic flowchart showing an example of a manufacturing method for the paper product described above. [Modes for carrying out the invention]

[0010] The embodiments of the present invention will be described below with reference to the attached drawings to facilitate understanding of the invention. Note that the following embodiments are merely examples of the present invention and do not limit the technical scope of the invention. Furthermore, the configurations and processing functions described in the following embodiments can be selected and combined as desired.

[0011] (Embodiment 1) [1] Overview of paper products First, an overview of the paper product 1 according to this embodiment will be described with reference to Figures 1 to 4.

[0012] In this embodiment, paper product 1 is a product that can be used primarily as an interior finishing material for walls, ceilings, and floors of houses. Interior finishing materials are a type of building material that is applied to the surface of substrates such as walls, ceilings, and floors in indoor spaces.

[0013] For example, in the case of a house, the paper product 1 would be placed as a finishing material on the surface of a structure that partitions the living space of a person. In this embodiment, as an example, we assume that the paper product 1 is used as a finishing material for the wall A1 and ceiling A2 in a living room of a house, as shown in Figure 1.

[0014] As such, paper product 1, used as an interior finishing material, will form the surface of the interior in place of various finishes such as wallpaper, paint, or plastering. Therefore, it is desirable that it has excellent moisture absorption and release properties, stain resistance, and also excellent design. In particular, with respect to design, paper product 1 can express a wide variety of textures, including color.

[0015] Paper product 1 may be used as a finishing material for floors, columns, beams, and even fixtures, in addition to or in place of at least one of the walls A1 and ceiling A2. Furthermore, paper product 1 as an interior finishing material is applicable not only to houses, but also to non-residential facilities such as shops, museums, schools, or public facilities, as well as to the cabins of mobile vehicles such as trains, buses, automobiles, ships, or airplanes.

[0016] As used in this disclosure, "paper product" refers to a product that is processed from "paper" as the main material into a size, thickness, shape, color, and design that can be used as an interior finishing material or the like. In this embodiment, the paper product 1 as an interior finishing material is attached to the base material 2 of the wall A1 and the ceiling A2 by using appropriate joining means for construction. As joining means between the base material 2 and the paper product 1, for example, various joining means such as adhesives such as water paste, adhesive (sticky) tapes, or tapes provided with a heat-fusible resin layer on both sides or one side of a core material can be applied.

[0017] As used in this disclosure, "paper" is, for example, a material (member) formed into a sheet by filtering raw material fibers, and is roughly classified into "Japanese paper" and "Western paper" according to its raw materials and manufacturing methods, etc.

[0018] Generally, the manufacturing method of Japanese paper roughly includes three processes: cooking, beating, and papermaking. Cooking is a process of heat-treating the raw material to make it easier to extract fibers from the raw material, beating is a process of pounding the extracted fibers to make them fine, and papermaking is a process of filtering the fine fibers into plain paper.

[0019] On the other hand, the manufacturing method of Western paper roughly includes four processes: pulping, preparation, papermaking, and finishing. Pulping is a process of extracting fibers from the raw material, preparation is a process of making the fibers fine and blending chemicals, papermaking is a process of binding the fibers, and finishing is a process of performing processing such as smoothing the surface.

[0020] Since Japanese paper hardly damages the fibers that are the raw materials during the manufacturing process, the fibers are easily entangled when making paper, the strength is improved, and the preservation property is also enhanced. Generally, the raw materials of Japanese paper are, for example, plants such as kozo, mitsumata, ganpi, or Manila hemp, rayon, or the like, or mixtures thereof. As used in this disclosure, "Japanese paper" includes, for example, paper made in Japan and paper using raw materials produced in Japan, as well as papers from various foreign countries (such as China or South Korea) that are generally sold as Japanese paper.

[0021] In contrast, Western paper shortens the fibers and uses chemicals to bond the fibers together, so it deteriorates more easily than Japanese paper. However, in Western paper, processing such as adjusting the color of the paper itself and preventing bleeding of ink is performed, so it is easier to handle than Japanese paper. The raw materials of general Western paper are, for example, wood such as coniferous trees or broad-leaved trees, plants such as sugarcane or bamboo, waste paper, or synthetic fibers, etc. Since there are a variety of raw material types, it is easy to achieve stable mass supply.

[0022] Also, there are various types of "Japanese paper". For example, depending on the production area, raw material, and / or usage, etc., there are various types such as Kurotani Japanese paper, Kozo paper, Shiromigami paper, Yuzen paper, Chiri paper, Mitsuba paper, Usumino paper, Kumo-hada hemp paper, Tosa hemp paper, Koga paper, Seiho paper, Togidashi paper, Echizen Japanese paper, Awa Japanese paper, Kaga Japanese paper, Ishikawa Japanese paper, Uchiyama paper, or Yuko paper, etc.

[0023] Kozo paper is a Japanese paper made from kozo, and since it uses kozo with strong and coarse fibers, it has strong adhesion and durability. Shiromigami paper is a Japanese paper that is kneaded to give a soft texture like cloth. Yuzen paper is mainly used for making dolls and is a decorative paper with vivid patterns like Yuzen dyeing on kimonos. Chiri paper uses kozo scraps as raw material.

[0024] In this embodiment, as an example, the case where the "paper", which is the main material of the paper product 1, is "Japanese paper", especially "Kozo paper" made from kozo as the raw material, will be described. Furthermore, in this embodiment, the "paper", which is the main material of the paper product 1, is plain Japanese paper without any paintings or patterns such as calligraphy and designs.

[0025] As shown in FIGS. 1 to 3, the paper product 1 with the above-described configuration is attached to the base materials 2 of the wall A1 and the ceiling A2 as an interior finishing material using appropriate joining means. That is, as shown in FIG. 2, with respect to the interior such as the exposed wall A1 and ceiling A2 where the base material 2 is in an exposed state, as shown in FIG. 3, when the paper product 1 is attached, as shown in FIG. 1, an interior is constructed in which the surfaces of the wall A1 and the ceiling A2 are covered with the paper product 1.

[0026] In this embodiment, since the main material of the paper product 1 is "washi" (Japanese paper), as shown in Figure 1, the surfaces of the wall A1 and ceiling A2 are covered with "washi," making it possible to realize an interior finished with washi. The application of the paper product 1 as an interior finishing material may be carried out in new construction work or in renovation work, etc.

[0027] In this disclosure, "substrate material" includes gypsum board, calcium silicate board, slag gypsum board, diatomaceous earth, autoclaved lightweight aerated concrete (ALC), reinforced concrete construction (RC), resin materials such as acrylic, stone, wood materials such as plywood or veneer, or metal materials. Alternatively, substrate material 2 may include multiple materials, for example, partly gypsum board and partly wood material (plywood).

[0028] In this embodiment, as an example, the base material 2 is gypsum board. As shown in Figure 2, multiple sheets of gypsum board are used as the base material 2 for the same surface (a continuous plane) of wall A1 or ceiling A2. When the base material 2 is exposed, screw holes for fixing the base material 2 to structural members such as columns, joints (boundaries) between adjacent base material 2, or irregularities such as nail heads are smoothed out using putty 3 or the like.

[0029] In this embodiment, as shown in Figure 3, multiple paper products 1 are attached to the same surface (a continuous plane) of wall A1 or ceiling A2. Each of the multiple paper products 1 is formed into an appropriate shape, taking into consideration the attachment area and design.

[0030] Here, as an example, each of the multiple paper products 1 is rectangular (or square) in shape, with sides measuring several tens of centimeters to approximately 180 centimeters. The thickness of each of the multiple paper products 1 is approximately 2 momme to 16 momme. Paper products 1 with such appropriate thickness, when attached to a base material 2 as an interior finishing material, range in thickness from those that allow the texture of the base material 2's surface, such as unevenness, undulation, or feel, to some extent, to those that allow it to be barely felt.

[0031] Multiple paper products 1 are arranged with a certain degree of overlap to completely fill the wall A1 or ceiling A2 without any gaps, and are joined to the base material 2. The arrangement of the multiple paper products 1 can be set as appropriate, and various arrangements can be adopted, such as an arrangement where the joints (equivalent to grout) of adjacent paper products 1 extend in a straight line both vertically and horizontally, like a "straight joint" (butt joint) in tiles, or an arrangement where they are offset by half a meter vertically or horizontally, like a "staggered joint".

[0032] Ultimately, the paper product 1, as an interior finishing material, is arranged to completely fill the walls A1 and ceiling A2 without any gaps, as shown in Figure 1, and constitutes the surfaces of walls A1 and ceiling A2. Furthermore, a coating agent such as konjac paste, acrylic, or urethane may be applied to the surface of the paper product 1 attached to the base material 2, if necessary. This improves the surface strength of the paper product 1, making it more resistant to tearing from scratches and also improves its stain resistance.

[0033] Incidentally, as mentioned above, when paper product 1 is used as an interior finishing material, the unique color and texture of paper product 1 can be expressed, making it possible to achieve an interior with excellent design. In particular, when paper product 1 made primarily from washi paper is used, the unique texture of washi paper, in which the fibers are made visible, can create a distinctive atmosphere in interiors such as walls A1 and ceiling A2.

[0034] However, since such paper products 1 are generally transparent, if, for example, the paper product 1 is directly attached to a substrate material 2 such as gypsum board, there is a problem that the seams of the substrate material 2 and putty 3 will be easily visible through it.

[0035] Therefore, the paper product 1 according to this embodiment comprises paper raw materials and soil and pigments mixed into the paper raw materials. In other words, the paper product 1 contains soil and pigments as components in addition to its main raw material, "paper raw materials".

[0036] In this disclosure, "paper raw materials" refers to the main raw materials of paper product 1, and includes, for example, plant fibers such as mulberry, mitsumata, or ganpi, or wood fibers such as coniferous or broad-leaved trees, plant fibers such as sugarcane or bamboo, recycled paper, or synthetic fibers. In this embodiment, as an example, the "paper raw materials" constituting paper product 1 are mulberry (fibers).

[0037] In this disclosure, "soil" refers to material that has accumulated on the surface of the earth from the decomposition of rocks, and is also called "soil." It includes building materials such as plastering clay for intermediate coatings and wall plaster for earthen walls, such as Awaji clay. Plastering clay for intermediate coatings contains soil, sand, and straw fibers (straw scraps). Thus, in this disclosure, "soil" does not strictly have to be soil only, and may contain foreign materials such as sand and straw. In this embodiment, as an example, the "soil" constituting paper product 1 is plastering clay for intermediate coatings.

[0038] Furthermore, the term "pigment" as used in this disclosure refers to an opaque substance that does not dissolve in water or solvents and colors an object to a certain color, and includes, for example, iron oxide (red iron oxide) or titanium dioxide. Pigments are clearly distinguished from dyes, which are colorants used when dyeing fibers, that is, colorants that dissolve in water and solvents. In this embodiment, as an example, the "pigment" constituting the paper product 1 is iron oxide.

[0039] Thus, in this embodiment, the paper product 1 comprises mulberry fibers (an example of "paper raw material"), plastering clay (an example of "clay"), and red iron oxide (an example of "pigment"). However, the specific examples of "paper raw material," "clay," and "pigment" are not limited to these, and at least one of the "paper raw material," "clay," and "pigment" may be changed to another substance.

[0040] As described above, the paper product 1 according to this embodiment is made by mixing paper raw materials (for example, mulberry fibers) with soil (for example, plastering clay) and pigment (for example, red iron oxide). Here, the soil and pigment do not soak into the mulberry fibers or other paper raw materials, but rather are fixed in a state in which they intertwine with the mulberry fibers or other paper raw materials.

[0041] Furthermore, paper product 1, made from paper raw materials in which pigment is mixed with soil in this manner, becomes less transparent compared to a comparative paper product of the same thickness that does not contain soil. Therefore, even when paper product 1 according to this embodiment is directly attached to a base material 2 such as gypsum board as an interior finishing material, the seams and putty 3 of the base material 2 become significantly less transparent compared to the comparative paper product. Figure 4 is a photograph of wall A1 with paper product 1 according to this embodiment attached as a finishing material to the surface of base material 2. As is clear from Figure 4, the seams and putty 3 of the base material 2 are not visible through paper product 1.

[0042] As a result, by simply applying paper product 1 as a finishing material, it becomes possible to achieve an ideal interior that avoids the visibility of the seams of the base material 2 and putty 3. Moreover, by applying paper product 1 to the surface, it is possible to obtain an atmosphere similar to that of an earthen wall, and furthermore, paper product 1 is expected to have excellent moisture absorption and release properties and stain resistance. In addition, by using such paper product 1 in the interior, it is also possible to expect an adsorption effect of chemical substances that cause sick building syndrome.

[0043] Furthermore, considering the installation process, compared to finishes such as painting or plastering, since it only involves attaching the paper product 1 to the base material 2, it is possible to finish the interior quickly without being affected by factors such as the skill of the installer or the weather (humidity, etc.). In addition, during installation, a bonding agent such as water-based adhesive may be applied to the back surface of the paper product 1 in advance, or a bonding agent such as water-based adhesive may be applied to the back surface of the paper product 1 and / or the surface of the base material 2 on-site.

[0044] As a result, the paper product 1 according to this embodiment has the advantage of providing a paper product 1 that is more suitable for use as a finishing material for interiors, etc.

[0045] [2] Method of manufacturing paper products Next, the manufacturing method of the paper product 1 according to this embodiment will be described with reference to Figure 5.

[0046] In other words, the manufacturing method of the paper product 1 according to this embodiment has multiple (in this case, eight) steps (processes) including a boiling step P1, a beating step P2, a stirring step P3, a mixing step P4, a papermaking step P5, a pressing step P6, a drying step P7, and a finishing step P8, as shown in Figure 5. In this embodiment, the boiling step P1, the beating step P2, the stirring step P3, the mixing step P4, the papermaking step P5, the pressing step P6, the drying step P7, and the finishing step P8 are carried out in this order.

[0047] In this embodiment, at least the mixing process P4, the papermaking process P5, and the finishing process P8 will be performed entirely by hand. Furthermore, the movement of paper raw materials between each process will also be performed primarily by hand.

[0048] The boiling process P1 is a process in which the mulberry bark used as a paper raw material is boiled to soften it. In the boiling process P1, the mulberry bark is heated and boiled with lye (a liquid obtained by soaking wood ash in water and skimming off the supernatant) or soda ash (sodium carbonate). In the boiling process P1, impurities are boiled out, then the lye is washed away, and dust is removed, leaving only the high-quality fibers that will become the raw material for paper.

[0049] Prior to the boiling process P1, preliminary preparations may be carried out on the mulberry bark as a paper raw material. In the preliminary preparations, the mulberry bark is cut to a certain length and steamed in a steaming pot, the outer bark is peeled off the steamed mulberry bark, and further processes such as mulberry peeling are carried out to remove the outer bark depending on the type of paper to be made. It is preferable that at least a part of the boiling process P1 be automated.

[0050] The beating process P2 involves using a machine that repeatedly bounces a weight called a "taiko" up and down using power to beat the mulberry fibers and loosen them. By loosening the mulberry fibers in this way in the beating process P2, the fibers become easier to separate in water during the subsequent papermaking process. A similar process is called beating. In beating, a machine similar to a mixer is used to loosen the mulberry fibers together with water. It is preferable that at least a part of the beating process P2 be automated.

[0051] The stirring step P3 is a step in which the soil and pigment are mixed and stirred. In the stirring step P3, the granular soil and pigment are placed in a single container, and the soil and pigment are stirred in a stirrer until they are evenly mixed with each other. At this time, the respective amounts of soil and pigment are adjusted as appropriate depending on the color, size, and quantity of the paper product 1 to be produced. At least one of the soil or pigment may be added during stirring.

[0052] In this embodiment, specifically, plastering clay (an example of "clay") and red iron oxide (an example of "pigment") are mixed in the mixing step P3. This yields a granular material consisting of a mixture of clay and pigment. It is preferable that at least a portion of the mixing step P3 be automated.

[0053] The mixing step P4 is a process in which soil and pigment are mixed into the paper raw material to obtain a base material. In other words, in the mixing step P4, a base material is produced in which mulberry fibers (an example of "paper raw material") are mixed with plastering clay (an example of "soil") and red iron oxide (an example of "pigment"). In this embodiment, the granular material consisting of a mixture of soil and pigment obtained by mixing and stirring the soil and pigment in the stirring step P3 is mixed into the paper raw material (loosened mulberry fibers) obtained in the crushing step P2.

[0054] Specifically, in mixing step P4, a granular mixture consisting of soil and pigment is added to a container containing the paper raw material (mulberry fibers) while being sieved. This separates specific granular particles from the soil and pigment mixture, mainly based on their particle size, and mixes them into the paper raw material. The mesh size of the sieve used here is, for example, 50 meshes (approximately 0.6 mm square) or more and 100 meshes (approximately 0.30 mm square) or less. Preferably, the mesh size of the sieve is 80 meshes (approximately 0.38 mm square) or more.

[0055] The papermaking process P5 is the process of forming sheet-like paper products 1 by making paper from raw materials. In the papermaking process P5, loosened and cotton-like paper raw materials (mulberry fibers) and neri (produced from the roots of plants such as tororo aoi) are placed in a papermaking vat (water tank), and paper products 1 are produced one by one. Specifically, the worker uses a papermaking frame with a papermaking screen in between to scoop up the liquid containing the paper raw materials and neri from the papermaking vat, shake it, replace the liquid to create thickness, and discard the excess liquid. At this time, the worker shakes the papermaking frame, causing the fibers to intertwine on the papermaking screen and form the paper product 1 on the screen. The wet paper (wet paper) that has been made in the papermaking process P5 is moved to the paper bed and stacked.

[0056] In this embodiment, in the mixing step P4 prior to the papermaking step P5, a mixture of soil and pigment is mixed into the paper raw material. Therefore, the paper raw material put into the papermaking vat is the paper raw material (matrix) in which the mixture of soil and pigment has been mixed, and in the papermaking step P5, the paper product 1 is formed by papermaking this paper raw material (matrix) in which soil and pigment have been mixed. As a result, the paper product 1 is produced from mulberry fibers as paper raw material in which soil and pigment are intertwined.

[0057] The pressing process P6 is a process in which pressure is applied to the wet paper (wet paper) that has been made in the papermaking process P5, thereby squeezing out the water from the wet paper. In the pressing process P6, the water is squeezed out by gradually (slowly) pressing the wet paper using a press over a sufficient period of time. It is preferable that at least a part of the pressing process P6 be automated.

[0058] Drying step P7 is a process for drying the wet paper after the water has been squeezed out in the pressing step P6. In drying step P7, each sheet of wet paper is attached to, for example, an iron plate, and the iron plate is heated with the heat of a heat transfer medium such as hot water, and the wet paper is dried by that heat. Alternatively, in drying step P7, each sheet of wet paper may be attached to, for example, a wooden board and sun-dried. It is preferable that at least a part of drying step P7 is automated.

[0059] The finishing process P8 is a process in which the paper product 1 is given a finishing treatment. In other words, in the finishing process P8, a coating agent such as konjac paste, persimmon tannin, acrylic, or urethane is applied to the paper product 1 obtained in the drying process P7 to finish the paper product 1. For example, applying konjac paste to the surface of the paper product 1 improves the strength of the surface of the paper product 1. Furthermore, the finishing process P8 may also include cutting the paper product 1 into a predetermined shape and size, and / or applying a bonding agent such as water-based glue to the back surface of the paper product 1.

[0060] This makes it possible to complete paper product 1 and, for example, prepare it for shipment.

[0061] Furthermore, the procedure for manufacturing paper product 1 shown in Figure 5 is merely an example; for example, the stirring step P3 may be performed before the boiling step P1 or the crushing step P2, or in parallel with the boiling step P1 or the crushing step P2.

[0062] As described above, the manufacturing method of the paper product 1 according to this embodiment comprises a mixing step P4 and a papermaking step P5. In the mixing step P4, soil and pigment are mixed into the paper raw material to obtain a base material. In the papermaking step P5, the base material (paper raw material mixed with soil and pigment) is paper-making to produce the paper product 1.

[0063] According to this configuration, paper product 1 is produced by pulping paper raw materials (base material) in which pigment is mixed with soil, so it is less transparent than a comparable paper product of the same thickness that does not contain soil. Therefore, even when paper product 1 obtained by this manufacturing method is directly attached to a base material 2 such as gypsum board as an interior finishing material, the seams and putty 3 of the base material 2 are significantly less transparent compared to a comparable paper product.

[0064] As a result, by simply attaching the paper product 1 manufactured by this method as a finishing material, it becomes possible to achieve an ideal interior that avoids the visibility of seams in the base material 2 and putty 3. Moreover, by attaching the paper product 1 to the surface, it is possible to obtain an atmosphere similar to that of an earthen wall, and furthermore, the paper product 1 is expected to have excellent moisture absorption and release properties and stain resistance. In addition, by using such a paper product 1 in the interior, it is also possible to expect an adsorption effect of chemical substances that cause sick building syndrome.

[0065] As a result, the manufacturing method of the paper product 1 according to this embodiment has the advantage of providing a manufacturing method for the paper product 1 that is more suitable for use as a finishing material for interiors, etc.

[0066] Furthermore, the manufacturing method of the paper product 1 according to this embodiment further includes a stirring step P3 before the mixing step P4. The stirring step P3 is a step of mixing and stirring the soil and pigment.

[0067] As a result, when soil and pigment are mixed into the paper raw material in mixing step P4, the soil and pigment are stirred and mixed uniformly before being added to the paper raw material. Therefore, uneven distribution of soil or pigment can be suppressed in the base material used in papermaking step P5, making it easier to obtain paper products 1 with reduced unevenness in color or pattern.

[0068] Furthermore, the manufacturing method of the paper product 1 according to this embodiment further includes a finishing step P8 after the papermaking step P5. The finishing step P8 is a step in which the paper product 1 is subjected to finishing processing.

[0069] As a result, for example, by applying a coating agent such as konjac paste to paper product 1 and finishing the paper product 1, it becomes possible to improve the surface strength of paper product 1.

[0070] [3] Variant The following lists some modifications of Embodiment 1. The modifications described below can be combined and applied as appropriate.

[0071] The manufacturing method for paper product 1 only needs to include the mixing step P4 and the papermaking step P5, and at least one of the boiling step P1, the beating step P2, the stirring step P3, the pressing step P6, the drying step P7, and the finishing step P8 may be omitted as appropriate. Furthermore, the order of these steps may be changed, and steps may be added as appropriate.

[0072] Furthermore, at least one of the boiling process P1, the beating process P2, the stirring process P3, the mixing process P4, the papermaking process P5, the pressing process P6, the drying process P7, and the finishing process P8 may be performed manually, for example, all of them may be performed manually. Conversely, at least one of the boiling process P1, the beating process P2, the stirring process P3, the mixing process P4, the papermaking process P5, the pressing process P6, the drying process P7, and the finishing process P8 may be automated, for example, at least one of the mixing process P4, the papermaking process P5, and the finishing process P8 may be automated.

[0073] Furthermore, paper product 1 is not limited to use as an interior finishing material; for example, it may be used outdoors as an exterior material. In addition, paper product 1 may be used as a finishing material (surface material) for fixtures (including furniture) such as tables, shelves or chairs, ornaments or home appliances, for example.

[0074] Furthermore, the surface to which the paper product 1 is attached (the surface of the base material 2) is not limited to a flat surface, but may include curved surfaces, steps, corners, or uneven surfaces. For example, one sheet of paper product 1 may be attached to an area including a corner from wall A1 to ceiling A2.

[0075] Furthermore, paper product 1 is not limited to plain paper; it may have an appropriate pattern, or it may have calligraphy or drawings written on it, or text and / or designs printed on it using a printer.

[0076] Furthermore, the materials, shapes, etc., of each component of the paper product 1 described in Embodiment 1 are merely examples and can be changed as appropriate. [Explanation of symbols]

[0077] 1 Paper products P3 Stirring process P4 Mixing process P5 Paper making process P8 Finishing Process

Claims

1. A mixing process to obtain a base material by mixing soil and pigments into the paper raw material, The process includes a papermaking step of making paper products by pulping the aforementioned base material, A method for manufacturing paper products.

2. Before the aforementioned mixing step, The process further includes a stirring step of mixing and stirring the soil and the pigment. A method for manufacturing a paper product according to claim 1.

3. After the papermaking process, The invention further comprises a finishing process for applying a finishing treatment to the aforementioned paper product. A method for manufacturing a paper product according to claim 1 or 2.

4. Paper raw materials and The paper raw material comprises soil and pigments mixed in, paper products.

Images