WO2018012217A1 - Sheet-shaped member and method for producing sheet-shaped member - Google Patents

Sheet-shaped member and method for producing sheet-shaped member Download PDF

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Publication number
WO2018012217A1
WO2018012217A1 PCT/JP2017/022638 JP2017022638W WO2018012217A1 WO 2018012217 A1 WO2018012217 A1 WO 2018012217A1 JP 2017022638 W JP2017022638 W JP 2017022638W WO 2018012217 A1 WO2018012217 A1 WO 2018012217A1
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WIPO (PCT)
Prior art keywords
sheet
water
film layer
reinforcing
soluble
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PCT/JP2017/022638
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French (fr)
Japanese (ja)
Inventor
善久 内田
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株式会社国際気象コンサルタント
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Publication of WO2018012217A1 publication Critical patent/WO2018012217A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer

Definitions

  • the present invention relates to a sheet-like member and a method for producing the sheet-like member. In more detail, it is related with a water-soluble sheet-like member and its manufacturing method.
  • the wafer sheet may be used when taking medicine or food.
  • the wafer sheet is a water-soluble sheet containing starch.
  • water-soluble sheet-like members composed of various other materials, which are used in various fields such as agriculture, sanitary materials, and handicrafts.
  • the water-soluble sheet-like member has insufficient strength depending on the application.
  • a water-soluble sheet-like member is coated with a water-insoluble material or printed, and then the water-insoluble material is stacked on the water-soluble sheet-like member.
  • the water-insoluble formed product is taken out by dissolving the water-soluble sheet-like member, it becomes difficult to take out the water-insoluble formed product from the water if all parts of the water-soluble sheet-like member are dissolved.
  • the present invention has been made to solve such a problem, and makes it easy to take out a water-insoluble formation formed on a water-soluble sheet-like member, and increases the strength of the sheet-like member. It aims at providing the manufacturing method of a sheet-like member.
  • the sheet-like member disclosed in the present application includes a water-soluble film layer extending in the planar direction and a reinforcing layer extending in the planar direction.
  • the film layer is laminated on the reinforcing layer, and the reinforcing layer extends in the planar direction.
  • a water-insoluble insulating reinforcing portion having an insulating property is provided, and the insulating reinforcing portion is formed in a knotless network.
  • the sheet-like member disclosed in the present application it is possible to easily take out the water-insoluble formation formed on the water-soluble sheet-like member and increase the strength of the sheet-like member.
  • FIG. 3B is an enlarged partial cross-sectional view of the sheet-like member at the position along the line BB ′ in FIG. It is a cross-section part enlarged view of the sheet-like member concerning a 2nd embodiment. It is a cross-section part enlarged view of the sheet-like member concerning a 3rd embodiment. It is a cross-section part enlarged view of the sheet-like member concerning a 4th embodiment.
  • FIG. 1 shows a plan view and a cross-sectional view of a sheet-like member 1 according to the first embodiment.
  • the sheet-like member 1 extends in the planar direction (the width direction X and the length direction Y).
  • the sheet-like member 1 includes a film layer 2 and a reinforcing layer 3.
  • the film layer 2 extends in the planar direction.
  • the film layer 2 continuously extends between both edge portions 1a in the width direction X of the sheet-like member 1 and continuously extends between both edge portions 1b in the length direction Y. That is, when the sheet-like member 1 is viewed in plan, the film layer 2 is provided over the entire surface of the sheet-like member 1.
  • the film layer 2 is made of a water-soluble material.
  • the film layer 2 is constituted by a material obtained by gelatinizing starch and drying it. Therefore, the aqueous solution in which the film layer 2 is dissolved becomes a non-electrolyte.
  • the film layer 2 may be composed of a vegetable polysaccharide water-soluble film such as wafer.
  • One main surface 2 a of the film layer 2 is exposed and constitutes the surface of the sheet-like member 1.
  • One main surface 2a of the film layer 2 is a flat surface without irregularities.
  • a reinforcing layer 3 is provided along the film layer 2 on the other main surface 2 b side of the film layer 2. That is, the film layer 2 is laminated on one main surface 3 a of the reinforcing layer 3.
  • the reinforcing layer 3 includes a water-soluble reinforcing portion 4 and an insulating reinforcing portion 5.
  • the insulating reinforcing portion 5 extends in the plane direction along the film layer 2 on the other main surface 2 b side of the film layer 2. That is, the film layer 2 is laminated on the insulating reinforcing portion 5.
  • the insulating reinforcing part 5 is made of a water-insoluble material.
  • the insulating reinforcement part 5 has insulation. In this embodiment, the insulation reinforcement part 5 is comprised with the glass fiber.
  • the insulating reinforcing part 5 is embedded in the water-soluble reinforcing part 4 extending in the planar direction. In the thickness direction D, the insulating reinforcing portion 5 is located at the central portion of the water-soluble reinforcing portion 4. The insulating reinforcing portion 5 is covered with the water-soluble reinforcing portion 4 and is not exposed on the one main surface 3a side and the other main surface 3b side of the reinforcing layer 3.
  • the insulating reinforcing portion 5 is formed in a net shape, and includes a thread portion 8 that intersects vertically and horizontally and a large number of mesh portions 9 formed between the thread portions 8. Yes.
  • the yarn portion 8 is plain woven, and a plurality of warp yarn portions 8a extending linearly and a plurality of weft yarn portions 8b extending linearly intersect at an angle of 90 degrees.
  • the warp portion 8 a extends along the length direction Y of the sheet-like member 1, and the weft portion 8 b extends along the width direction X.
  • the insulating reinforcing part 5 is formed without knots. “No-nodule” means no nodule, that is, no knot.
  • a knot means a portion where a plurality of yarns are tied to each other, and means a portion that protrudes in the thickness direction D from other portions due to the yarn being tied. In the present embodiment, no knot that protrudes in the thickness direction D is formed at the intersection of the warp portion 8a and the weft portion 8b.
  • FIG. 1A corresponds to the AA ′ line in FIG.
  • FIG. 1B shows a cross section of the insulating reinforcing portion 5 at the portion where the weft portion 8b exists, as indicated by the line AA ′ in FIG. Therefore, in the example of FIG.1 (b), the mesh part 9 exists in the near side and back side of the weft part 8b.
  • FIG. 2B shows a cross section of the sheet-like member 1 at a portion where the weft portion 8b does not exist, as indicated by the line BB ′ in FIG. As shown in FIG. 2B, the mesh portion 9 is located between the adjacent warp yarn portions 8a.
  • the mesh portion 9 is a space surrounded by the warp yarn portion 8 a and the weft yarn portion 8 b, and this space is filled with the water-soluble reinforcing portion 4.
  • the weft portion 8b shown in FIG. 1 (b) may appear on the back side in the cross section shown in FIG. 2 (b). Therefore, the description of the weft portion 8b is omitted.
  • 1 (b) and 2 (b) show a cross section in the width direction (cross section in the width direction X) of the sheet-like member 1, but a cross section in the length direction (cross section in the longitudinal direction Y). ) Is the same as that in FIGS. 1B and 2B.
  • the insulating reinforcing portion 5 continuously extends between both edge portions 1a in the width direction X of the sheet-like member 1 and continuously extends between both edge portions 1b in the length direction Y. That is, the insulating reinforcing portion 5 is provided over the entire surface of the sheet-like member 1 on the other main surface 2 b side of the film layer 2.
  • the water-soluble reinforcing part 4 is made of a water-soluble material.
  • the water-soluble reinforcement part 4 is formed of starch that has been gelatinized and dried. Therefore, the material constituting the water-soluble reinforcing portion 4 is the same as the material constituting the film layer 2.
  • the water-soluble reinforcing portion 4 extends in the plane direction along the film layer 2.
  • the portion of the water-soluble reinforcing portion 4 that extends in the planar direction and is provided between the upper end 8 c of the yarn portion 8 and the film layer 2 is referred to as a first coating portion 6.
  • the upper surface 6 a of the first coating portion 6 constitutes one main surface 3 a of the reinforcing layer 3.
  • the upper end 8c of the thread part 8 has shown the part where the height position (position in the thickness direction D) is the highest in the warp part 8a and the weft part 8b.
  • the height positions of the upper end 8c of the warp portion 8a and the upper end 8c of the weft portion 8b are the same.
  • a portion of the water-soluble reinforcing portion 4 that extends in the planar direction and is provided on the lower end 8d side of the yarn portion 8 is referred to as a second coating portion 7.
  • the lower surface 7 a of the second coating portion 7 constitutes the other main surface 3 b of the reinforcing layer 3.
  • the lower surface 7 a is a flat surface and constitutes the back surface of the sheet-like member 1.
  • the lower end 8d of the yarn portion 8 indicates the lowest height position (position in the thickness direction D) of the warp yarn portion 8a and the weft yarn portion 8b. In the example shown in FIG. 1B, the height positions of the lower end 8d of the warp portion 8a and the lower end 8d of the weft portion 8b are the same.
  • the first coating portion 6 and the second coating portion 7 are constituted by a material obtained by gelatinizing and drying starch, and the water-soluble reinforcing portion 4 filled in the mesh portion 9 (FIG. 2) is also provided. Similarly, it is comprised by what gelatinized starch and dried.
  • the first coating portion 6, the second coating portion 7, and the filling portion of the mesh portion 9 are integrally formed to constitute the water-soluble reinforcing portion 4.
  • the water-soluble reinforcing portion 4 continuously extends between both edge portions 1a in the width direction X of the sheet-like member 1 and continuously extends between both edge portions 1b in the length direction Y. That is, the water-soluble reinforcing portion 4 is provided over the entire surface of the sheet-like member 1 on the other main surface 2 b side of the film layer 2.
  • the thickness dimension (dimension in the thickness direction D) d1 of the sheet-like member 1 is 0.2 mm.
  • the thickness d1 of the sheet-like member 1 is desirably any numerical value within the range of 0.1 mm to 0.3 mm.
  • the thickness d1 of the sheet-like member 1 is uniform.
  • the thickness d4 of the insulating reinforcing portion 5 (the thickness dimension from the upper end 8c to the lower end 8d of the yarn portion 8) is any numerical value within the range of 0.035 mm to 0.18 mm.
  • the thickness d4 of the insulating reinforcing portion 5 is uniform.
  • the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension of the reinforcing layer 3.
  • the thickness d2 of the film layer 2 is desirably 0.02 mm or more.
  • the thickness dimension d3 of the first coating part 6 is thinner than the thickness dimension d4 of the insulating reinforcing part 5.
  • the thickness dimension d3 of the first coating portion 6 is desirably 0.02 mm or more.
  • the thickness dimension d5 of the second coating portion 7 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5.
  • the thickness dimension d5 of the second coating part 7 is desirably 0.02 mm or more, like the first coating part 6.
  • the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4 by covering the insulating reinforcing portion 5 with the gelatinized starch and drying it.
  • insulative reinforcing portions 5 are formed by cutting glass fibers formed in a mesh shape in accordance with the dimensions of the sheet-like member 1 to be manufactured. Moreover, the starch paste liquid which gelatinized starch is prepared. Next, the insulating reinforcing portion 5 is impregnated with the starch paste liquid. At this time, the upper end 8c and the lower end 8d of the glass fiber are thinly covered with the starch paste liquid so that the glass fiber is not exposed. The portion formed by the starch paste liquid that covers the upper end 8c and the lower end 8d of the glass fiber thinly corresponds to the first coating portion 6 and the second coating portion 7 described above. Further, the mesh portion 9 is filled with the starch paste liquid.
  • the reinforcing layer 3 in which the insulating reinforcing part 5 is embedded in the water-soluble reinforcing part 4 is formed.
  • the portion where the starch paste liquid is dried constitutes the water-soluble reinforcing portion 4.
  • the first coating portion 6, the second coating portion 7, and the filling portion of the mesh portion 9 are integrally formed at the same time.
  • a starch paste liquid obtained by gelatinizing starch is laminated on the formed reinforcing layer 3.
  • the starch paste-like liquid may be laminated by pouring the starch paste-like liquid over the reinforcing layer 3, or the starch paste-like liquid may be laminated on the reinforcing layer 3 by being overlaid with a roller or the like. Also good.
  • lamination is performed so that the upper surface of the starch paste liquid is a flat surface.
  • the laminated starch paste liquid is dried to form the film layer 2. At this time, it is desirable to dry rapidly so that the water content of the starch paste liquid is about 10 to 15%, as in the above-described drying step.
  • various water-insoluble formations are made by stacking a water-insoluble material on one main surface 2 a of the film layer 2, that is, the surface of the sheet-like member 1. Things can be formed. For example, a predetermined pattern such as a masking pattern or a circuit pattern may be printed on the surface of the sheet-like member 1 with a water-insoluble material.
  • a commercially available printing device such as an ink jet printer, a laser printer, or a copier can be used.
  • the water-insoluble film layer 2 is dissolved and formed of the water-insoluble material. Formations can be obtained. For example, when a predetermined masking pattern is printed on the sheet-like member 1 with a water-insoluble material, various masking sheets such as a sandblast mask can be easily formed. In addition, when a predetermined circuit pattern is printed on the sheet-like member 1 with a water-insoluble conductive material such as conductive ink or conductive toner, an electronic component such as a circuit board can be easily formed. it can.
  • the sheet-like member 1 since the sheet-like member 1 includes the reinforcing layer 3 extending in the planar direction, the film layer 2 is reinforced. Therefore, the strength of the sheet-like member 1 is increased, and the strength that can withstand the repeated coating of water-insoluble materials and printing is maintained. Furthermore, even when the film layer 2 is wet, the film layer 2 is reinforced by the reinforcing layer 3, so that a decrease in strength of the film layer 2 is reduced.
  • the insulating reinforcing part 5 is water-insoluble. Therefore, for example, when a predetermined pattern is printed on the sheet-like member 1 with a water-insoluble material and then the sheet-like member 1 is dissolved in water, the water-soluble film layer 2 and the water-soluble reinforcing portion 4 are dissolved. Thus, the water-insoluble insulating reinforcing portion 5 remains. Therefore, the predetermined pattern is held on the insulating reinforcing portion 5. Therefore, the predetermined pattern held on the insulating reinforcing portion 5 can be easily taken out by grasping and taking out the insulating reinforcing portion 5. In this way, since it is not necessary to directly grasp and take out the predetermined pattern itself, the possibility that the pattern is deformed or broken is reduced.
  • the predetermined pattern is supported by the insulating reinforcing portion 5, the possibility that the formed predetermined pattern is deformed or broken due to the weight of water or the like is reduced.
  • the water-soluble reinforcing part 4 covering the insulating reinforcing part 5 is also water-soluble, when the sheet-like member 1 is dissolved in water, the water-soluble reinforcing part 4 is dissolved together with the film layer 2. Therefore, the insulating reinforcement part 5 is exposed and the mesh part 9 is also opened. Therefore, when the insulating reinforcing portion 5 is grasped and taken out from the water, the water falls from the mesh portion 9 and the water drainage is improved.
  • the insulating reinforcement part 5 has insulation. Therefore, even if the predetermined pattern is formed of a conductive material, the predetermined pattern and the insulating reinforcing portion 5 do not conduct. Therefore, it is possible to create another electronic component or the like without removing the predetermined pattern from the insulating reinforcing portion 5.
  • a predetermined circuit pattern is printed on the sheet-like member 1 with a water-insoluble conductive material such as conductive ink or conductive toner. Thereafter, when the sheet-like member 1 is immersed in water, the film layer 2 and the water-soluble reinforcing portion 4 are melted, and a predetermined circuit pattern is placed on the insulating reinforcing portion 5.
  • the circuit pattern is sealed together with the insulating reinforcing portion 5 with a resin such as an epoxy resin to create a circuit board.
  • a resin such as an epoxy resin
  • the circuit pattern can be attached to members having various shapes and sizes.
  • the insulation reinforcement part 5 is a net-like thing extended in a plane direction, the expansion-contraction of the sheet-like member 1 is prevented. Furthermore, the insulating reinforcement part 5 is configured without knots. Therefore, the insulating reinforcing portion 5 has no protrusion in the thickness direction D due to the knot. Thus, since the knot portion does not protrude from the surface of the sheet-like member 1 (one main surface 2a of the film layer 2), the surface of the sheet-like member 1 is kept smooth. Further, it is not necessary to increase the thickness of the sheet-like member 1 so that the knot portion does not protrude from the surface of the sheet-like member 1. Furthermore, since the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4, the unevenness of the insulating reinforcing portion 5 does not appear on the front and back surfaces of the sheet-like member 1.
  • the sheet-like member 1 according to the first embodiment includes the reinforcing layer 3 extending in the planar direction, the film layer 2 is reinforced, and the strength of the sheet-like member 1 can be increased. Moreover, the insulating reinforcement part 5 is water-insoluble. As described above, after the film layer 2 is melted, the insulating reinforcing portion 5 is grasped and taken out, so that a water-insoluble formation (for example, the predetermined pattern described above) held on the insulating reinforcing portion 5 is obtained. Etc.) can be easily taken out. In addition, since it is not necessary to directly grip and take out the water-insoluble formation itself, the possibility of the water-insoluble formation being deformed or torn can be reduced.
  • the sheet-like member 1 according to the first embodiment the water-insoluble formation formed on the water-soluble sheet-like member 1 can be easily taken out, and the strength of the sheet-like member 1 can be increased. .
  • the water-insoluble formation is supported by the insulating reinforcing portion 5, it is possible to reduce the possibility that the shape of the formation is deformed due to the weight of water or the formation is torn. . Further, when the sheet-like member 1 is dissolved in water, as described above, the insulating reinforcing portion 5 is exposed and the mesh portion 9 is also opened, so that the insulating reinforcing portion 5 is grasped and taken out from the water. In this case, the water drainage can be improved.
  • the insulating reinforcing portion 5 has insulating properties. Therefore, even if a water-insoluble formation (for example, the predetermined pattern) is formed of a conductive material, the water-insoluble formation and the insulating reinforcing portion 5 are electrically connected. This can be prevented. Therefore, as described above, an electronic component such as a circuit board can be created without removing the water-insoluble formation from the insulating reinforcing portion 5. Moreover, according to the sheet-like member 1, since it becomes easy to form and take out only a circuit pattern, a circuit pattern can be attached to members of various shapes and sizes.
  • the insulating reinforcement part 5 is a net-like thing extended in a plane direction, the expansion and contraction of the sheet-like member 1 can be prevented. For example, when printing a fine pattern, it is desirable that the printing position and the size of the printing object do not shift. By preventing the expansion and contraction of the sheet-like member 1 by the insulating reinforcing portion 5, it is possible to cope with printing that requires more accuracy.
  • the insulating reinforcing part 5 is configured without knots. Therefore, as described above, the surface of the sheet-like member 1 can be kept smooth. Further, as described above, since it is not necessary to increase the thickness of the sheet-like member 1 so that the knot portion does not protrude from the surface of the sheet-like member 1, the sheet-like member 1 can be formed thin.
  • the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4. Therefore, the unevenness of the insulating reinforcing portion 5 can be prevented from appearing on the front and back surfaces of the sheet-like member 1. Therefore, printing can be performed more smoothly when the sheet-like member 1 is inserted into a printing device such as a printer or a copier for printing. Moreover, by providing the water-soluble reinforcement part 4, a reinforcement force increases and the intensity
  • one main surface 2a of the film layer 2 is a flat surface, it is possible to easily perform operations such as coating and printing of a water-insoluble material on the one main surface 2a.
  • the film layer 2 contains starch that has been gelatinized and dried. Therefore, the surface smoothness of one main surface 2a of the film layer 2 can be further enhanced. Therefore, for example, when a predetermined shape is printed on one main surface 2a of the film layer 2 with a water-insoluble material, the contour of the printed shape can be made clearer. For example, compared to general copy paper, the blurring of outlines of printed characters, images, etc. is less, and sharper printing is possible.
  • the gelatinized and dried starch is difficult to cut, a thin and strong film layer 2 can be formed.
  • the gelatinized and dried starch is transparent or translucent, the film layer 2 is also formed transparent or translucent. Thereby, when a predetermined shape, pattern, or the like is printed on one main surface 2a of the film layer 2 using an opaque or colored material, the printed shape, pattern, or the like is easily visible.
  • the starch that has been gelatinized and dried is hardly soluble in heat, even when heat is applied to the film layer 2 when printing is performed on the film layer 2 using a general printing device, Printing can be performed without melting the film layer 2.
  • the thickness dimension (dimension in the thickness direction D) d1 is desirably any numerical value within a range of 0.1 mm to 0.3 mm.
  • the thickness d4 of the insulating reinforcing portion 5 is uniform. Therefore, the sheet-like member can be reinforced uniformly over the entire sheet-like member 1.
  • the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, it is possible to ensure a larger ratio of the thickness dimension d4 of the insulating reinforcing portion 5 in the thickness dimension d1 of the sheet-like member 1. Therefore, the reinforcing force by the insulating reinforcing portion 5 can be further increased.
  • the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension of the reinforcing layer 3. Therefore, the ratio of the thickness dimension of the reinforcing layer 3 among the thickness dimension d1 of the sheet-like member 1 can be further ensured. Therefore, the reinforcing force by the reinforcing layer 3 can be further increased.
  • the thickness dimension d3 of the first coating portion 6 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, a larger ratio of the thickness dimension d4 of the insulating reinforcing portion 5 in the thickness dimension of the reinforcing layer 3 can be ensured. Therefore, the reinforcing force by the insulating reinforcing portion 5 can be further increased.
  • the thickness dimension d5 of the second coating portion 7 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, similarly, the ratio of the thickness dimension d4 of the insulating reinforcing portion 5 in the thickness dimension of the reinforcing layer 3 can be ensured to be larger. Therefore, the reinforcing force by the insulating reinforcing portion 5 can be further increased.
  • the thickness dimension d2 of the film layer 2 is desirably 0.02 mm or more
  • the thickness dimension d3 of the first coating portion 6 is also desirably 0.02 mm or more.
  • the insulating reinforcing portion 5 is provided over the entire surface of the sheet-like member 1 on the other main surface 2b side of the film layer 2. Accordingly, the overall strength of the sheet-like member 1 can be increased.
  • the insulating reinforcing portion 5 is made of glass fiber. Therefore, it is possible to increase the insulating property of the insulating reinforcing portion 5 and to prevent the yarn portion 8 constituting the insulating reinforcing portion 5 from expanding and contracting due to heat or the like.
  • the manufacturing method of the sheet-like member 1 forms the reinforcing layer 3 in which the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4 by covering the insulating reinforcing portion 5 with the gelatinized starch and drying it. And a film layer forming step for forming the film layer 2 by laminating and drying a starch paste liquid obtained by gelatinizing starch on one main surface 3a of the reinforcing layer 3. It is out.
  • the insulating reinforcing portion 5 is buried in the water-soluble reinforcing portion 4 by covering the insulating reinforcing portion 5 with the gelatinized starch and drying it, so that the insulating reinforcing portion 5 can be prevented from appearing on the front and back surfaces of the sheet-like member 1. Further, the film layer 2 can be easily laminated with a uniform thickness.
  • FIG. 3 is a cross-sectional view along the thickness direction D in the sheet-like member 100 according to the second embodiment, and shows a cross-sectional view corresponding to the position shown in FIG.
  • the planar shape of the sheet-like member 100 is the same as the planar shape of the sheet-like member 1 shown in FIG.
  • differences from the first embodiment will be mainly described.
  • FIG. 3 the same components as those in the first embodiment are denoted by the same reference numerals.
  • the sheet-like member 100 has a configuration in which another film layer 102 is provided on the back side of the sheet-like member 1 described above.
  • the above-mentioned film layer 2 is called the front surface side film layer 2
  • the other film layer 102 is called the back surface side film layer 102.
  • the structure of the surface side film layer 2 and the reinforcement layer 3 is the same as the structure of the film layer 2 and the reinforcement layer 3 in 1st Embodiment.
  • the back film layer 102 is provided on the other main surface 3b side of the reinforcing layer 3. Therefore, the reinforcing layer 3 is located between the front film layer 2 and the back film layer 102.
  • the back film layer 102 extends in the planar direction along the front film layer 2 and the reinforcing layer 3. In this embodiment, the back surface side film layer 102 extends over the entire surface of the sheet-like member 100 when viewed in a plane, similarly to the front surface side film layer 2.
  • the back surface side film layer 102 is comprised by what gelatinized the starch and dried similarly to the surface side film layer 2.
  • FIG. The back surface side film layer 102 may be constituted by a vegetable polysaccharide water-soluble film such as wafer.
  • One main surface 102a of the back-side film layer 102 is located on the other main surface 3b side of the reinforcing layer 3 and is in contact with the other main surface 3b.
  • the other main surface 102b of the back surface side film layer 102 is a flat surface without unevenness.
  • the manufacturing method of the sheet-like member 100 according to the second embodiment is basically the same as the manufacturing method of the sheet-like member 1 according to the first embodiment described above.
  • the difference from the first embodiment is that, in the film layer forming step, a starch paste liquid obtained by gelatinizing starch is laminated on both surfaces 3a and 3b of the reinforcing layer 3 and dried. Thereby, the back surface side film layer 102 can be formed with the surface side film layer 2.
  • the sheet-like member 100 according to the second embodiment has the following advantages in addition to the advantages described in the sheet-like member 1 according to the first embodiment described above.
  • the sheet-like member 100 according to the second embodiment further includes the other water-soluble film layer (back side film layer) 102 extending in the planar direction. Therefore, according to the sheet-like member 100 according to the second embodiment, various water-insoluble formations can be formed by superimposing water-insoluble materials on both surfaces 2a and 102b of the sheet-like member 1. it can.
  • both surfaces 2a and 102b of the sheet-like member 100 can be used as the coating or printing surface of the water-insoluble material, it is possible to save the trouble of checking the front and back when using the sheet-like member.
  • the other main surface 102b of the back surface side film layer 102 is a flat surface, it is possible to easily perform operations such as coating and printing of a water-insoluble material on the back surface side of the sheet-like member 100. Can do.
  • FIG. 4 is a cross-sectional view along the thickness direction D of the sheet-like member 200 according to the third embodiment, and shows a cross-sectional view corresponding to the position shown in FIG.
  • the planar shape of the sheet-like member 200 is the same as the planar shape of the sheet-like member 1 shown in FIG.
  • differences from the first embodiment will be mainly described.
  • FIG. 4 the same components as those in the first embodiment are denoted by the same reference numerals.
  • the configuration of the film layer 2 is the same as that of the first embodiment, and there are some differences in the configuration of the reinforcing layer 203.
  • the reinforcing layer 203 includes the insulating reinforcing portion 5 and the water-soluble reinforcing portion 204.
  • the configuration of the insulating reinforcing portion 5 is the same as that in the first embodiment.
  • the material constituting the water-soluble reinforcing portion 4 is obtained by gelatinizing and drying starch, and is the same as the material constituting the film layer 2.
  • the material constituting the water-soluble reinforcing portion 204 is obtained by gelatinizing starch mixed with water-soluble fibers and drying it.
  • the mixed fiber is a water-soluble cellulose fiber. Therefore, the mesh portion 9 of the insulating reinforcing portion 5 is filled with a starch in which fibers are mixed and dried by gelatinization.
  • a product obtained by gelatinizing and drying a starch mixed with fibers extends in the plane direction.
  • a portion of the water-soluble reinforcing portion 204 that extends in the planar direction and is provided between the upper end 8c of the yarn portion 8 and the film layer 2 is referred to as a first fiber coating portion 206.
  • the upper surface 206a of the first fiber coating portion 206 constitutes one main surface 203a of the reinforcing layer 203, and the film layer 2 is laminated thereon.
  • a portion of the water-soluble reinforcing portion 204 that extends in the planar direction and is provided on the lower end 8d side of the yarn portion 8 is referred to as a second fiber coating portion 207.
  • the lower surface 207 a of the second fiber coating portion 207 constitutes the other main surface 203 b of the reinforcing layer 203.
  • the lower surface 207a is a flat surface and constitutes the back surface of the sheet-like member 200.
  • the manufacturing method of the sheet-like member 200 according to the third embodiment is basically the same as the manufacturing method of the sheet-like member 1 according to the first embodiment described above.
  • the difference from the first embodiment is that water-soluble fibers are mixed in the gelatinized starch in the reinforcing layer forming step.
  • finely cut water-soluble cellulose fibers are mixed in gelatinized starch and dried. Thereby, the water-soluble reinforcement part 204 can be formed.
  • the sheet-like member 200 according to the third embodiment has the following advantages.
  • the water-soluble reinforcing portion 204 includes water-soluble fibers. Therefore, according to the sheet-like member 200, the strength of the reinforcing layer 203 can be further increased. Therefore, the strength of the sheet-like member 200 can be further increased.
  • FIG. 5 is a cross-sectional view along the thickness direction D of the sheet-like member 300 according to the fourth embodiment, and shows a cross-sectional view corresponding to the position shown in FIG.
  • the planar shape of the sheet-like member 300 is the same as the planar shape of the sheet-like member 1 shown in FIG.
  • FIG. 5 the same components as those in the first embodiment and the third embodiment are denoted by the same reference numerals.
  • the sheet-like member 300 has a configuration in which another film layer 302 is provided on the back side of the sheet-like member 200 described above.
  • the film layer 2 located on the front surface side of the sheet-like member 1 described in the first embodiment is referred to as the front surface side film layer 2
  • the other film layer 302 is referred to as the back surface side film layer 302.
  • the configurations of the surface-side film layer 2 and the reinforcing layer 203 are the same as the configurations of the film layer 2 in the first embodiment and the reinforcing layer 203 in the third embodiment.
  • the back film layer 302 is provided on the other main surface 203b side of the reinforcing layer 203. Therefore, the reinforcing layer 203 is located between the front film layer 2 and the back film layer 302.
  • the back side film layer 302 extends in the planar direction along the front side film layer 2 and the reinforcing layer 203. In the present embodiment, the back-side film layer 302 extends over the entire surface of the sheet-like member 300, similarly to the front-side film layer 2.
  • the back surface side film layer 302 is comprised by what gelatinized the starch and dried similarly to the surface side film layer 2.
  • FIG. The back surface side film layer 302 may be composed of a vegetable polysaccharide water-soluble film such as wafer.
  • One main surface 302a of the back film layer 302 is located on the other main surface 203b side of the reinforcing layer 203 and is in contact with the other main surface 203b.
  • the other main surface 302b of the back surface side film layer 302 is a flat surface without unevenness.
  • the manufacturing method of the sheet-like member 300 according to the fourth embodiment is basically the same as the manufacturing method of the sheet-like member 200 according to the third embodiment described above.
  • the difference from the third embodiment is that, in the film layer forming step, a starch paste liquid obtained by gelatinizing starch is laminated on both surfaces 203a and 203b of the reinforcing layer 203 and dried. Thereby, the back surface side film layer 302 can be formed together with the front surface side film layer 2.
  • the sheet-like member 300 according to the fourth embodiment has the following advantages in addition to the advantages described in the sheet-like member 200 according to the third embodiment described above.
  • the sheet-like member 300 according to the fourth embodiment further includes the other water-soluble film layer (back side film layer) 302 extending in the planar direction. Therefore, according to the sheet-like member 300 according to the fourth embodiment, various water-insoluble formations can be formed by superimposing water-insoluble materials on both surfaces 2a and 302b of the sheet-like member 300. it can.
  • both surfaces 2a and 302b of the sheet-like member 300 can be used as a coating or printing surface of a water-insoluble material, it is possible to save the trouble of checking the front and back when using the sheet-like member.
  • the other main surface 302b of the back surface side film layer 302 is a flat surface, operations such as recoating and printing of a water-insoluble material can be easily performed also on the back surface side of the sheet-like member 300. Can do.
  • the shape of the sheet-like members 1, 100, 200, 300 may be any size and any shape.
  • paper sizes such as A1, A2, A3, A4, and B5 that can be printed by general printing equipment such as an ink jet printer, laser printer, copier, and plotter may be used, and a circle, a triangle, a polygon A planar shape such as Moreover, a long sheet-like member may be rolled and stored or transported.
  • the shape of the insulating reinforcing portion 5 may be any shape such as a cloth or mesh as long as it is a net.
  • An example is shown in FIG.
  • the insulating reinforcing portion 105 shown in FIG. 6A includes a yarn portion 108 and a mesh portion 109, and the yarn portion 108 includes a first yarn portion 108a and a second yarn portion 108b.
  • the first yarn portion 108a and the second yarn portion 108b are orthogonal to each other, and the first yarn portion 108a and the second yarn portion 108b are inclined with respect to the width direction X and the length direction Y of the sheet-like member. It extends.
  • the 6B includes a yarn portion 208 and a mesh portion 209, and the yarn portion 208 includes a plurality of wavy yarn portions 208a extending in a wave shape along the length direction Y.
  • the wavy yarn portion 208a intersects the adjacent wavy yarn portion 208a at the wavy protruding portion 208b that protrudes in the width direction X.
  • the insulating reinforcing portion 305 shown in FIG. 6C includes a thread portion 308 and a mesh portion 309, and the thread portion 308 is parallel to each other with a plurality of first thread portions 308a extending in parallel to each other at equal intervals. And a plurality of second thread portions 308b extending in the direction.
  • the first yarn portion 308a and the second yarn portion 308b intersect each other.
  • the first yarn portion 308a and the second yarn portion 308b are orthogonal to each other.
  • the first yarn portion 308a and the second yarn portion 308b are each configured as a set of a plurality of thin yarns 310.
  • the thin yarn 310 extends linearly along the extending direction of the first yarn portion 308a or the second yarn portion 308b. Therefore, according to the insulating reinforcing portion 305, the strength of the yarn portion 308 can be increased without narrowing the space region of the mesh portion 9. Therefore, the strength of the insulating reinforcing portion 5 and the reinforcing force by the insulating reinforcing portion 5 can be increased without reducing the above-mentioned water draining effect.
  • the insulating reinforcing portions 105, 205, and 305 described with reference to FIGS. 6 (a) to 6 (c) have no knots and are formed into a knotless net.
  • the shape and size of the yarn portions 8, 108, 208, and 308 and the mesh portions 9, 109, 209, and 309 constituting the insulating reinforcing portions 5, 105, 205, and 305 are any shapes and sizes. Good. Further, in the insulating reinforcing portion 5, the warp portion 8a and the weft portion 8b are orthogonal to each other, but the warp portion 8a and the weft portion 8b may intersect at any angle.
  • the first yarn portions 108a and 308a and the second yarn portions 108b and 308b are orthogonal to each other, but the first yarn portions 108a and 308a and the second yarn are the same.
  • the portions 108b and 308b may intersect at any angle.
  • the yarn portion 8 is plain woven, and the warp portion 8a and the weft portion 8b overlap each other at the intersection of the warp portion 8a and the weft portion 8b.
  • the warp yarn portion 8a and the weft yarn portion 8b are integrally formed so that the warp yarn portion 8a and the weft yarn portion 8b are joined on the same plane at the intersecting portion, and the warp yarn portion 8a and the weft yarn portion 8b are arranged on the same plane. May be.
  • a single warp portion 8a is formed by bundling a plurality of thin yarns
  • a single weft portion 8b is formed by bundling a plurality of thin yarns. May be.
  • the film layer 2 is directly laminated on the reinforcing layer 3, but the film layer 2 may be laminated on the reinforcing layer 3 through another layer.
  • another layer made of a material different from that of the film layer 2 may be laminated on the reinforcing layer 3, and the film layer 2 may be laminated on the reinforcing layer 3.
  • Another layer made of the same material may be laminated, and the film layer 2 may be laminated thereon.
  • the reinforcing layer 3 includes the water-soluble reinforcing portion 4, but may not include the water-soluble reinforcing portion 4.
  • the film layer 2 may be directly laminated on the insulating reinforcing portion 5.
  • the insulating reinforcing portion 5 may not be embedded in the water-soluble reinforcing portion 4.
  • the lower end 8 d of the thread portion 8 of the insulating reinforcing portion 5 may be exposed on the back surface of the sheet-like member 1.
  • the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4.
  • the reinforcing layer 3 is formed by covering the insulating reinforcing portion 5 with a water-insoluble material. Also good.
  • water-soluble cellulose fibers are used as the water-soluble fibers included in the water-soluble reinforcing portion 204, but other fiber materials may be used.
  • one main surface 2 a of the film layer 2 is a flat surface
  • one main surface 2 a of the film layer 2 and the other main surface of the other film layer 102 are a flat surface
  • these main surfaces 2a and 102b do not need to be formed in a flat surface.
  • the manufacturing method of the sheet-like member 1,100,200,300 may be a manufacturing method other than the method described above.
  • the insulating reinforcing portion 5 is immersed in the starch paste liquid to form the water-soluble reinforcing portion 4, but the water-soluble reinforcement is formed by other methods.
  • the part 4 may be formed.
  • the water-soluble reinforcement part 4 may be formed by pouring starch paste liquid over the insulation reinforcement part 5, or the water-soluble reinforcement part 4 is formed by covering the insulation reinforcement part 5 with an oblate sheet. May be.
  • the mesh portion 9 may or may not be filled with a starch paste liquid.
  • the mesh portion 9 may hold a space.
  • the film layer 2 is formed, however, You may form the reinforcement layer 3 and the film layer 2 simultaneously.
  • the reinforcing layer 3 and the film layer 2 are integrally formed at the same time by applying the starch paste liquid obtained by gelatinizing the insulating reinforcing portion 5 to a predetermined thickness and drying it. Also good.
  • the film layer 2 and the reinforcing layer 3 are provided over the entire surface of the sheet-like member 1 when viewed in a plan view, but are not limited thereto.
  • the film layer 2 and the reinforcing layer 3 may be provided only in the central portion of the sheet-like member 1, or the film layer 2 and the reinforcing layer 3 are arranged in a plurality of discontinuous arrangement regions in the sheet-like member 1, respectively. May be.
  • each part constituting the sheet-like member 1, 100, 200, 300 may be any material.
  • the film layer 2 need only be water-soluble, and may be composed of various starches, sodium alginate, gelatin, pullulan, or the like. Various materials may be used alone or in combination. Various additives may be added to the main material.
  • one main surface 2a or both surfaces 2a, 102b, 302b of the sheet-like member 1, 100, 200, 300 are provided.
  • 302b may be attached with a protective film.
  • the protective film for example, a thin film such as a polypropylene sprayed or coated with silicon rubber, recycled PET, or biodegradable plastic may be used. In this case, when printing or the like is performed on the film layer 2 or the other film layers 102 and 302, the protective film can be peeled off from the sheet-like members 1, 100, 200, and 300 for use.
  • Grids, diagonal lines, auxiliary lines according to the purpose of use, designs, predetermined patterns, etc. are preliminarily applied to the film layer 2, the other film layers 102, 302 or the reinforcing layers 3, 203 with a water-soluble material such as water-soluble ink. You may print it.
  • the sheet-like members 1, 100, 200, and 300 can be used for various purposes other than those described above. The dimensions of each part are all examples and are not limited to the numerical values described above.
  • Appendix 5 The sheet-like member according to any one of appendix 1 to appendix 4, wherein one main surface of the film layer is a flat surface, and the reinforcing layer is provided on the other main surface side of the film layer.
  • (Appendix 6) It further comprises a water-soluble other film layer extending in the planar direction, and the reinforcing layer is provided between the film layer and the other film layer, One main surface of the other film layer is located on the reinforcing layer side, 6.
  • Appendix 7 The sheet member according to any one of appendix 1 to appendix 6, wherein the film layer includes starch that has been gelatinized and dried.
  • Appendix 8 The method for manufacturing a sheet-like member according to any one of appendix 3 to appendix 7 subordinate to appendix 2 or appendix 2, A reinforcing layer forming step in which the insulating reinforcing portion forms the reinforcing layer embedded in the water-soluble reinforcing portion by covering and drying the insulating reinforcing portion with gelatinized starch; and A film layer forming step for forming the film layer by laminating and drying a starch paste liquid obtained by gelatinizing starch on one main surface or both surfaces of the reinforcing layer formed by the reinforcing layer forming step.
  • the manufacturing method of the sheet-like member containing these.

Landscapes

  • Laminated Bodies (AREA)

Abstract

Provided is a sheet-shaped member and a method for producing the sheet-shaped member in which a non-water-soluble article formed on a water-soluble sheet-shaped member can be easily taken out and in which the strength of the sheet-shaped member is increased. A sheet-shaped member disclosed in the present application includes a water-soluble film layer extending in a plane direction and a reinforcing layer extending in the plane direction. The film layer is layered on the reinforcing layer, and the reinforcing layer has a non-water-soluble insulating reinforcing part having insulation properties and extending in the plane direction. The insulating reinforcing part is formed in the shape of a knotless net.

Description

シート状部材とシート状部材の製造方法Sheet-like member and method for producing sheet-like member
　本発明は、シート状部材とシート状部材の製造方法に関する。より詳しくは、水溶性のシート状部材とその製造方法に関する。 The present invention relates to a sheet-like member and a method for producing the sheet-like member. In more detail, it is related with a water-soluble sheet-like member and its manufacturing method.
　従来、用途に合わせた様々な水溶性のシート状部材が知られている（例えば、特許文献１及び２）。例えば、オブラートシートは、薬や食品を摂取する際に用いられることがある。オブラートシートは、澱粉を含む水溶性のシートである。その他にも、他の様々な材料から構成される水溶性のシート状部材が存在しており、農業、衛生材料、手工芸等、様々な分野において使用されている。 Conventionally, various water-soluble sheet-like members suitable for applications are known (for example, Patent Documents 1 and 2). For example, the wafer sheet may be used when taking medicine or food. The wafer sheet is a water-soluble sheet containing starch. In addition, there are water-soluble sheet-like members composed of various other materials, which are used in various fields such as agriculture, sanitary materials, and handicrafts.
特開２００１－２５２０１７号公報JP 2001-252017 A 特開２００２－６５８６３号公報JP 2002-65863 A
　しかしながら、水溶性のシート状部材には、用途によっては、強度が足りないという問題がある。また、例えば、水溶性のシート状部材に非水溶性の材料を塗ったり、印刷等したりして、非水溶性の材料を水溶性のシート状部材に重ねた後に、水溶性のシート状部材を溶解させて、非水溶性の形成物を取り出す場合には、水溶性のシート状部材の全ての部分が溶けてしまうと、上記非水溶性の形成物が水から取り出しにくくなってしまう。 However, there is a problem that the water-soluble sheet-like member has insufficient strength depending on the application. In addition, for example, a water-soluble sheet-like member is coated with a water-insoluble material or printed, and then the water-insoluble material is stacked on the water-soluble sheet-like member. When the water-insoluble formed product is taken out by dissolving the water-soluble sheet-like member, it becomes difficult to take out the water-insoluble formed product from the water if all parts of the water-soluble sheet-like member are dissolved.
　本発明は、このような問題を解決するためになされたものであり、水溶性のシート状部材に形成した非水溶性の形成物を取り出しやすくすると共に、シート状部材の強度を高めるシート状部材とシート状部材の製造方法を提供することを目的とする。　 The present invention has been made to solve such a problem, and makes it easy to take out a water-insoluble formation formed on a water-soluble sheet-like member, and increases the strength of the sheet-like member. It aims at providing the manufacturing method of a sheet-like member. *
　本願に開示されるシート状部材は、平面方向に延びる水溶性のフィルム層と、平面方向に延びる補強層とを備え、フィルム層は、補強層に積層されており、補強層は、平面方向に延び絶縁性を有する非水溶性の絶縁性補強部を備え、絶縁性補強部は、無結節の網状に形成されている。 The sheet-like member disclosed in the present application includes a water-soluble film layer extending in the planar direction and a reinforcing layer extending in the planar direction. The film layer is laminated on the reinforcing layer, and the reinforcing layer extends in the planar direction. A water-insoluble insulating reinforcing portion having an insulating property is provided, and the insulating reinforcing portion is formed in a knotless network.
　本願に開示されるシート状部材によれば、水溶性のシート状部材に形成した非水溶性の形成物を取り出しやすくすると共に、シート状部材の強度を高めることができる。 According to the sheet-like member disclosed in the present application, it is possible to easily take out the water-insoluble formation formed on the water-soluble sheet-like member and increase the strength of the sheet-like member.
（ａ）第１の実施形態に係るシート状部材の平面図である。（ｂ）図１（ａ）のＡ－Ａ´線断面の部分拡大図である。(A) It is a top view of the sheet-like member concerning a 1st embodiment. (B) It is the elements on larger scale of the AA 'line cross section of Fig.1 (a). （ａ）第１の実施形態に係る絶縁性補強部の部分拡大平面図である。（ｂ）図２（ａ）のＢ－Ｂ´線位置におけるシート状部材の断面部分拡大図である。(A) It is a partial enlarged plan view of the insulating reinforcement part which concerns on 1st Embodiment. FIG. 3B is an enlarged partial cross-sectional view of the sheet-like member at the position along the line BB ′ in FIG. 第２の実施形態に係るシート状部材の断面部分拡大図である。It is a cross-section part enlarged view of the sheet-like member concerning a 2nd embodiment. 第３の実施形態に係るシート状部材の断面部分拡大図である。It is a cross-section part enlarged view of the sheet-like member concerning a 3rd embodiment. 第４の実施形態に係るシート状部材の断面部分拡大図である。It is a cross-section part enlarged view of the sheet-like member concerning a 4th embodiment. （ａ）他の実施形態に係る絶縁性補強部の部分拡大平面図である。（ｂ）他の実施形態に係る絶縁性補強部の部分拡大平面図である。（ｃ）他の実施形態に係る絶縁性補強部の部分拡大平面図である。(A) It is a partial enlarged plan view of the insulation reinforcement part which concerns on other embodiment. (B) It is a partial enlarged plan view of the insulating reinforcement part which concerns on other embodiment. (C) It is a partial enlarged plan view of the insulating reinforcement part which concerns on other embodiment.
［第１の実施形態］
　以下、本発明の実施の形態を添付の図により説明する。なお、「表」、「裏」、「上」、「下」、「縦」、「横」、「幅方向」、「長さ方向」、「厚さ方向」等の方向を示す語は、図面の状態に基づく便宜上のものであり、実際の方向はこれに限定されるものではない。 [First Embodiment]
Embodiments of the present invention will be described below with reference to the accompanying drawings. In addition, words indicating directions such as “front”, “back”, “top”, “bottom”, “vertical”, “horizontal”, “width direction”, “length direction”, “thickness direction”, etc. This is for convenience based on the state of the drawing, and the actual direction is not limited to this.
　図１に第１の実施形態に係るシート状部材１の平面図及び断面図を示す。シート状部材１は、平面方向（幅方向Ｘ及び長さ方向Ｙ）に延びている。図１（ｂ）に示すように、シート状部材１は、フィルム層２と補強層３とを備えている。フィルム層２は、平面方向に延びている。本実施形態において、フィルム層２は、シート状部材１の幅方向Ｘにおける両縁部１ａの間に連続して延び、長さ方向Ｙにおける両縁部１ｂの間に連続して延びている。すなわち、シート状部材１を平面視したときに、フィルム層２はシート状部材１の全面に亘って設けられている。 FIG. 1 shows a plan view and a cross-sectional view of a sheet-like member 1 according to the first embodiment. The sheet-like member 1 extends in the planar direction (the width direction X and the length direction Y). As shown in FIG. 1B, the sheet-like member 1 includes a film layer 2 and a reinforcing layer 3. The film layer 2 extends in the planar direction. In the present embodiment, the film layer 2 continuously extends between both edge portions 1a in the width direction X of the sheet-like member 1 and continuously extends between both edge portions 1b in the length direction Y. That is, when the sheet-like member 1 is viewed in plan, the film layer 2 is provided over the entire surface of the sheet-like member 1.
　フィルム層２は、水溶性の材料によって構成されている。この実施形態において、フィルム層２は澱粉を糊化させて乾燥させたものによって構成されている。したがって、フィルム層２を溶かした水溶液は非電解質となる。フィルム層２は、例えば、オブラート等の、植物性の多糖質水溶性フィルムによって構成されていてもよい。
　フィルム層２の一方の主面２ａは、露出してシート状部材１の表面を構成している。フィルム層２の一方の主面２ａは、凹凸のない平坦面である。 The film layer 2 is made of a water-soluble material. In this embodiment, the film layer 2 is constituted by a material obtained by gelatinizing starch and drying it. Therefore, the aqueous solution in which the film layer 2 is dissolved becomes a non-electrolyte. The film layer 2 may be composed of a vegetable polysaccharide water-soluble film such as wafer.
One main surface 2 a of the film layer 2 is exposed and constitutes the surface of the sheet-like member 1. One main surface 2a of the film layer 2 is a flat surface without irregularities.
　フィルム層２の他方の主面２ｂ側には、フィルム層２に沿って、補強層３が設けられている。すなわち、補強層３の一方の主面３ａには、フィルム層２が積層されている。補強層３は、水溶性補強部４と絶縁性補強部５とを備えている。
　絶縁性補強部５は、フィルム層２の他方の主面２ｂ側において、フィルム層２に沿って、平面方向に延びている。すなわち、絶縁性補強部５にはフィルム層２が積層されている。
　絶縁性補強部５は、非水溶性の材料によって構成されている。また、絶縁性補強部５は、絶縁性を有している。本実施形態において、絶縁性補強部５は、ガラス繊維によって構成されている。
　絶縁性補強部５は平面方向に延びる水溶性補強部４に埋設されている。厚さ方向Ｄにおいて、絶縁性補強部５は水溶性補強部４の中央部分に位置している。絶縁性補強部５は水溶性補強部４によって覆われており、補強層３の一方の主面３ａ側及び他方の主面３ｂ側に露出していない。 A reinforcing layer 3 is provided along the film layer 2 on the other main surface 2 b side of the film layer 2. That is, the film layer 2 is laminated on one main surface 3 a of the reinforcing layer 3. The reinforcing layer 3 includes a water-soluble reinforcing portion 4 and an insulating reinforcing portion 5.
The insulating reinforcing portion 5 extends in the plane direction along the film layer 2 on the other main surface 2 b side of the film layer 2. That is, the film layer 2 is laminated on the insulating reinforcing portion 5.
The insulating reinforcing part 5 is made of a water-insoluble material. Moreover, the insulating reinforcement part 5 has insulation. In this embodiment, the insulation reinforcement part 5 is comprised with the glass fiber.
The insulating reinforcing part 5 is embedded in the water-soluble reinforcing part 4 extending in the planar direction. In the thickness direction D, the insulating reinforcing portion 5 is located at the central portion of the water-soluble reinforcing portion 4. The insulating reinforcing portion 5 is covered with the water-soluble reinforcing portion 4 and is not exposed on the one main surface 3a side and the other main surface 3b side of the reinforcing layer 3.
　図２（ａ）に示すように、絶縁性補強部５は、網状に形成されていて、縦横に交わる糸部８と、糸部８の間に形成された多数の網目部９とを備えている。本実施形態では、糸部８は平織りされていて、直線状に延びる複数の縦糸部８ａと、直線状に延びる複数の横糸部８ｂとが９０度の角度で交差している。縦糸部８ａは、シート状部材１の長さ方向Ｙに沿って延び、横糸部８ｂは幅方向Ｘに沿って延びている。絶縁性補強部５は、無結節に形成されている。「無結節」とは、結節がない、すなわち、結び目がないことをいう。結び目とは、複数の糸が互いに結ばれている部分を意味し、糸が結ばれていることによって、他の部分よりも厚さ方向Ｄに突出している部分のことをいう。
　本実施形態において、縦糸部８ａと横糸部８ｂの交わる箇所には、厚さ方向Ｄに突出する結び目は形成されていない。 As shown in FIG. 2 (a), the insulating reinforcing portion 5 is formed in a net shape, and includes a thread portion 8 that intersects vertically and horizontally and a large number of mesh portions 9 formed between the thread portions 8. Yes. In the present embodiment, the yarn portion 8 is plain woven, and a plurality of warp yarn portions 8a extending linearly and a plurality of weft yarn portions 8b extending linearly intersect at an angle of 90 degrees. The warp portion 8 a extends along the length direction Y of the sheet-like member 1, and the weft portion 8 b extends along the width direction X. The insulating reinforcing part 5 is formed without knots. “No-nodule” means no nodule, that is, no knot. A knot means a portion where a plurality of yarns are tied to each other, and means a portion that protrudes in the thickness direction D from other portions due to the yarn being tied.
In the present embodiment, no knot that protrudes in the thickness direction D is formed at the intersection of the warp portion 8a and the weft portion 8b.
　なお、図１（ａ）のＡ－Ａ´線は、図２（ａ）のＡ－Ａ´線に対応している。図１（ｂ）は、図２（ａ）のＡ－Ａ´線にて示すように、絶縁性補強部５において、横糸部８ｂが存在する部分における断面を示している。したがって、図１（ｂ）の例では、横糸部８ｂの手前側及び奥側に網目部９が存在していることになる。
　図２（ｂ）は、図２（ａ）のＢ－Ｂ´線にて示すように、横糸部８ｂが存在しない部分におけるシート状部材１の断面を示している。図２（ｂ）に示すように、隣り合う縦糸部８ａの間には、網目部９が位置している。網目部９は、縦糸部８ａと横糸部８ｂによって囲まれた空間であり、この空間は、水溶性補強部４によって充填されている。
　なお、水溶性補強部４が透明の場合には、図２（ｂ）に示す断面において、奥側に、図１（ｂ）に示す横糸部８ｂが表れる場合があるが、ここでは、説明のために、横糸部８ｂの記載は省略している。
　図１（ｂ）及び図２（ｂ）においては、シート状部材１の幅方向断面（幅方向Ｘに横断する断面）を示しているが、長さ方向断面（長さ方向Ｙに縦断する断面）の形状も、図１（ｂ）及び図２（ｂ）と同様である。 Note that the AA ′ line in FIG. 1A corresponds to the AA ′ line in FIG. FIG. 1B shows a cross section of the insulating reinforcing portion 5 at the portion where the weft portion 8b exists, as indicated by the line AA ′ in FIG. Therefore, in the example of FIG.1 (b), the mesh part 9 exists in the near side and back side of the weft part 8b.
FIG. 2B shows a cross section of the sheet-like member 1 at a portion where the weft portion 8b does not exist, as indicated by the line BB ′ in FIG. As shown in FIG. 2B, the mesh portion 9 is located between the adjacent warp yarn portions 8a. The mesh portion 9 is a space surrounded by the warp yarn portion 8 a and the weft yarn portion 8 b, and this space is filled with the water-soluble reinforcing portion 4.
When the water-soluble reinforcing portion 4 is transparent, the weft portion 8b shown in FIG. 1 (b) may appear on the back side in the cross section shown in FIG. 2 (b). Therefore, the description of the weft portion 8b is omitted.
1 (b) and 2 (b) show a cross section in the width direction (cross section in the width direction X) of the sheet-like member 1, but a cross section in the length direction (cross section in the longitudinal direction Y). ) Is the same as that in FIGS. 1B and 2B.
　絶縁性補強部５は、シート状部材１の幅方向Ｘにおける両縁部１ａの間に連続して延び、長さ方向Ｙにおける両縁部１ｂの間に連続して延びている。すなわち、絶縁性補強部５は、フィルム層２の他方の主面２ｂ側において、シート状部材１の全面に亘って設けられている。 The insulating reinforcing portion 5 continuously extends between both edge portions 1a in the width direction X of the sheet-like member 1 and continuously extends between both edge portions 1b in the length direction Y. That is, the insulating reinforcing portion 5 is provided over the entire surface of the sheet-like member 1 on the other main surface 2 b side of the film layer 2.
　水溶性補強部４は、水溶性の材料によって構成されている。本実施形態において、水溶性補強部４は、糊化させて乾燥させた澱粉によって形成されている。したがって、水溶性補強部４を構成する材料は、フィルム層２を構成する材料と同じである。水溶性補強部４は、フィルム層２に沿って、平面方向に延びている。説明のために、水溶性補強部４のうち、平面方向に延び、糸部８の上端８ｃとフィルム層２の間に設けられている部分を第１の被膜部６と呼ぶ。第１の被膜部６の上面６ａは補強層３の一方の主面３ａを構成している。
　なお、糸部８の上端８ｃは、縦糸部８ａ及び横糸部８ｂにおいて、高さ位置（厚さ方向Ｄにおける位置）が最も高い部分を示している。図１（ｂ）に示す例において、縦糸部８ａの上端８ｃ及び横糸部８ｂの上端８ｃの高さ位置は同じである。 The water-soluble reinforcing part 4 is made of a water-soluble material. In this embodiment, the water-soluble reinforcement part 4 is formed of starch that has been gelatinized and dried. Therefore, the material constituting the water-soluble reinforcing portion 4 is the same as the material constituting the film layer 2. The water-soluble reinforcing portion 4 extends in the plane direction along the film layer 2. For the sake of explanation, the portion of the water-soluble reinforcing portion 4 that extends in the planar direction and is provided between the upper end 8 c of the yarn portion 8 and the film layer 2 is referred to as a first coating portion 6. The upper surface 6 a of the first coating portion 6 constitutes one main surface 3 a of the reinforcing layer 3.
In addition, the upper end 8c of the thread part 8 has shown the part where the height position (position in the thickness direction D) is the highest in the warp part 8a and the weft part 8b. In the example shown in FIG. 1B, the height positions of the upper end 8c of the warp portion 8a and the upper end 8c of the weft portion 8b are the same.
　また、説明のために、水溶性補強部４のうち、平面方向に延び、糸部８の下端８ｄ側に設けられている部分を第２の被膜部７と呼ぶ。第２の被膜部７の下面７ａは、補強層３の他方の主面３ｂを構成している。また、下面７ａは、平坦面であり、シート状部材１の裏面を構成している。
　なお、糸部８の下端８ｄは、縦糸部８ａ及び横糸部８ｂにおいて、高さ位置（厚さ方向Ｄにおける位置）が最も低い部分を示している。図１（ｂ）に示す例において、縦糸部８ａの下端８ｄ及び横糸部８ｂの下端８ｄの高さ位置は同じである。 For the sake of explanation, a portion of the water-soluble reinforcing portion 4 that extends in the planar direction and is provided on the lower end 8d side of the yarn portion 8 is referred to as a second coating portion 7. The lower surface 7 a of the second coating portion 7 constitutes the other main surface 3 b of the reinforcing layer 3. The lower surface 7 a is a flat surface and constitutes the back surface of the sheet-like member 1.
Note that the lower end 8d of the yarn portion 8 indicates the lowest height position (position in the thickness direction D) of the warp yarn portion 8a and the weft yarn portion 8b. In the example shown in FIG. 1B, the height positions of the lower end 8d of the warp portion 8a and the lower end 8d of the weft portion 8b are the same.
　第１の被膜部６と第２の被膜部７は、澱粉を糊化させて乾燥させたものによって構成されていて、網目部９（図２）に充填されている水溶性補強部４も、同様に、澱粉を糊化させて乾燥させたものによって構成されている。第１の被膜部６と第２の被膜部７と網目部９の充填部分とは、一体的に形成されて水溶性補強部４を構成している。 The first coating portion 6 and the second coating portion 7 are constituted by a material obtained by gelatinizing and drying starch, and the water-soluble reinforcing portion 4 filled in the mesh portion 9 (FIG. 2) is also provided. Similarly, it is comprised by what gelatinized starch and dried. The first coating portion 6, the second coating portion 7, and the filling portion of the mesh portion 9 are integrally formed to constitute the water-soluble reinforcing portion 4.
　水溶性補強部４は、シート状部材１の幅方向Ｘにおける両縁部１ａの間に連続して延び、長さ方向Ｙにおける両縁部１ｂの間に連続して延びている。すなわち、水溶性補強部４は、フィルム層２の他方の主面２ｂ側において、シート状部材１の全面に亘って設けられている。 The water-soluble reinforcing portion 4 continuously extends between both edge portions 1a in the width direction X of the sheet-like member 1 and continuously extends between both edge portions 1b in the length direction Y. That is, the water-soluble reinforcing portion 4 is provided over the entire surface of the sheet-like member 1 on the other main surface 2 b side of the film layer 2.
　本実施形態において、シート状部材１の厚さ寸法（厚さ方向Ｄにおける寸法）ｄ１は０．２ｍｍである。シート状部材１の厚さ寸法ｄ１は、０．１ｍｍ～０．３ｍｍの範囲内のいずれかの数値であることが望ましい。本実施形態において、シート状部材１の厚さ寸法ｄ１は、均一である。本実施形態において、絶縁性補強部５の厚さ寸法ｄ４（糸部８の上端８ｃから下端８ｄまでの厚さ寸法）は、０．０３５ｍｍ～０．１８ｍｍの範囲内のいずれかの数値であり、絶縁性補強部５の厚さ寸法ｄ４は均一である。
　フィルム層２の厚さ寸法ｄ２は、絶縁性補強部５の厚さ寸法ｄ４よりも薄い。したがって、フィルム層２の厚さ寸法ｄ２は、補強層３の厚さ寸法よりも薄い。フィルム層２の厚さ寸法ｄ２は、０．０２ｍｍ以上であることが望ましい。 In the present embodiment, the thickness dimension (dimension in the thickness direction D) d1 of the sheet-like member 1 is 0.2 mm. The thickness d1 of the sheet-like member 1 is desirably any numerical value within the range of 0.1 mm to 0.3 mm. In the present embodiment, the thickness d1 of the sheet-like member 1 is uniform. In the present embodiment, the thickness d4 of the insulating reinforcing portion 5 (the thickness dimension from the upper end 8c to the lower end 8d of the yarn portion 8) is any numerical value within the range of 0.035 mm to 0.18 mm. The thickness d4 of the insulating reinforcing portion 5 is uniform.
The thickness dimension d2 of the film layer 2 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension of the reinforcing layer 3. The thickness d2 of the film layer 2 is desirably 0.02 mm or more.
　第１の被膜部６の厚さ寸法ｄ３は、絶縁性補強部５の厚さ寸法ｄ４よりも薄い。第１の被膜部６の厚さ寸法ｄ３は、０．０２ｍｍ以上であることが望ましい。第２の被膜部７の厚さ寸法ｄ５は、絶縁性補強部５の厚さ寸法ｄ４よりも薄い。第２の被膜部７の厚さ寸法ｄ５は、第１の被膜部６と同様に、０．０２ｍｍ以上であることが望ましい。 The thickness dimension d3 of the first coating part 6 is thinner than the thickness dimension d4 of the insulating reinforcing part 5. The thickness dimension d3 of the first coating portion 6 is desirably 0.02 mm or more. The thickness dimension d5 of the second coating portion 7 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. The thickness dimension d5 of the second coating part 7 is desirably 0.02 mm or more, like the first coating part 6.
　次に、第１の実施形態に係るシート状部材１の製造方法について説明する。第１の実施形態に係るシート状部材１の製造方法は、糊化させた澱粉によって絶縁性補強部５を覆って乾燥させることにより、絶縁性補強部５が水溶性補強部４に埋設された補強層３を形成する補強層形成工程と、補強層３の一方の主面３ａに、澱粉を糊化させた澱粉糊状液を積層させて乾燥させることにより、フィルム層２を形成するフィルム層形成工程とを含む。 Next, a method for manufacturing the sheet-like member 1 according to the first embodiment will be described. In the manufacturing method of the sheet-like member 1 according to the first embodiment, the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4 by covering the insulating reinforcing portion 5 with the gelatinized starch and drying it. A reinforcing layer forming step for forming the reinforcing layer 3 and a film layer for forming the film layer 2 by laminating and drying a starch paste liquid obtained by gelatinizing starch on one main surface 3a of the reinforcing layer 3 Forming step.
　補強層形成工程においては、まず、製造するシート状部材１の寸法に合わせて、網状に形成されたガラス繊維をカットして、絶縁性補強部５を形成する。また、澱粉を糊化させた澱粉糊状液を用意する。次いで、絶縁性補強部５を澱粉糊状液に含浸させる。このとき、ガラス繊維が露出しないように、ガラス繊維の上端８ｃ及び下端８ｄが澱粉糊状液によって薄く覆われるようにする。このガラス繊維の上端８ｃ及び下端８ｄを薄く覆う澱粉糊状液によって形成される部分が、前述の第１の被膜部６及び第２の被膜部７に対応している。また、網目部９には、澱粉糊状液が充填されることになる。 In the reinforcing layer forming step, first, insulative reinforcing portions 5 are formed by cutting glass fibers formed in a mesh shape in accordance with the dimensions of the sheet-like member 1 to be manufactured. Moreover, the starch paste liquid which gelatinized starch is prepared. Next, the insulating reinforcing portion 5 is impregnated with the starch paste liquid. At this time, the upper end 8c and the lower end 8d of the glass fiber are thinly covered with the starch paste liquid so that the glass fiber is not exposed. The portion formed by the starch paste liquid that covers the upper end 8c and the lower end 8d of the glass fiber thinly corresponds to the first coating portion 6 and the second coating portion 7 described above. Further, the mesh portion 9 is filled with the starch paste liquid.
　その後、澱粉糊状液に浸された絶縁性補強部５を乾燥させると、絶縁性補強部５が水溶性補強部４に埋設された補強層３が形成される。澱粉糊状液が乾燥した部分は、水溶性補強部４を構成している。第１の被膜部６と第２の被膜部７と網目部９の充填部分とは、一体的に同時に形成されることになる。澱粉糊状液の乾燥に際しては、例えば、澱粉糊状液の水分が１０～１５％程度になるように、急速に乾燥させることが望ましい。これにより、澱粉を老化させずに糊化状態を保持できる。 Thereafter, when the insulating reinforcing part 5 immersed in the starch paste liquid is dried, the reinforcing layer 3 in which the insulating reinforcing part 5 is embedded in the water-soluble reinforcing part 4 is formed. The portion where the starch paste liquid is dried constitutes the water-soluble reinforcing portion 4. The first coating portion 6, the second coating portion 7, and the filling portion of the mesh portion 9 are integrally formed at the same time. When drying the starch paste liquid, it is desirable to dry it quickly so that the water content of the starch paste liquid is about 10 to 15%, for example. Thereby, the gelatinization state can be maintained without aging the starch.
　フィルム層形成工程においては、まず、形成した補強層３の上に、澱粉を糊化させた澱粉糊状液を積層させる。例えば、澱粉糊状液を補強層３の上にかけ流すことによって、澱粉糊状液を積層させてもよいし、補強層３の上に澱粉糊状液をローラ等で塗り重ねることによって積層させてもよい。このとき、澱粉糊状液の上面が平坦面となるように積層する。次いで、積層させた澱粉糊状液を乾燥させて、フィルム層２を形成する。このとき、前述の乾燥工程と同様に、澱粉糊状液の水分が１０～１５％程度になるように、急速に乾燥させることが望ましい。 In the film layer forming step, first, a starch paste liquid obtained by gelatinizing starch is laminated on the formed reinforcing layer 3. For example, the starch paste-like liquid may be laminated by pouring the starch paste-like liquid over the reinforcing layer 3, or the starch paste-like liquid may be laminated on the reinforcing layer 3 by being overlaid with a roller or the like. Also good. At this time, lamination is performed so that the upper surface of the starch paste liquid is a flat surface. Subsequently, the laminated starch paste liquid is dried to form the film layer 2. At this time, it is desirable to dry rapidly so that the water content of the starch paste liquid is about 10 to 15%, as in the above-described drying step.
　次に、シート状部材１の作用について説明する。
　第１の実施形態に係るシート状部材１において、フィルム層２の一方の主面２ａ、すなわち、シート状部材１の表面には、非水溶性の材料を重ねて、様々な非水溶性の形成物を形成することができる。例えば、シート状部材１の表面に、非水溶性の材料によって、マスキングパターンや回路パターン等の所定のパターンを印刷してもよい。シート状部材１への印刷の際には、インクジェットプリンター、レーザープリンター、コピー機等の市販の印刷機器を用いることができる。 Next, the operation of the sheet-like member 1 will be described.
In the sheet-like member 1 according to the first embodiment, various water-insoluble formations are made by stacking a water-insoluble material on one main surface 2 a of the film layer 2, that is, the surface of the sheet-like member 1. Things can be formed. For example, a predetermined pattern such as a masking pattern or a circuit pattern may be printed on the surface of the sheet-like member 1 with a water-insoluble material. When printing on the sheet-like member 1, a commercially available printing device such as an ink jet printer, a laser printer, or a copier can be used.
　シート状部材１に、非水溶性の材料を塗り重ねたり印刷したりした後に、シート状部材１を水に溶解させると、水溶性のフィルム層２は溶けて、非水溶性の材料によって形成された形成物を取得することができる。
　例えば、シート状部材１に、非水溶性の材料によって所定のマスキングパターンを印刷等した場合には、サンドブラスト用マスク等の各種マスキングシートを容易に形成することができる。また、シート状部材１に、導電性インク又は導電性トナー等の非水溶性の導電性材料によって所定の回路パターンを印刷等した場合には、回路基板等の電子部品を容易に形成することができる。 After the water-insoluble material is applied to or printed on the sheet-like member 1, when the sheet-like member 1 is dissolved in water, the water-soluble film layer 2 is dissolved and formed of the water-insoluble material. Formations can be obtained.
For example, when a predetermined masking pattern is printed on the sheet-like member 1 with a water-insoluble material, various masking sheets such as a sandblast mask can be easily formed. In addition, when a predetermined circuit pattern is printed on the sheet-like member 1 with a water-insoluble conductive material such as conductive ink or conductive toner, an electronic component such as a circuit board can be easily formed. it can.
　シート状部材１は、前述のように、平面方向に延びる補強層３を備えているため、フィルム層２が補強されている。したがって、シート状部材１の強度が高まることになり、非水溶性の材料の塗り重ねや印刷等にも耐え得る強度が保持される。さらに、フィルム層２が水分を帯びた場合であっても、補強層３によってフィルム層２が補強されているため、フィルム層２の強度低下が低減する。 As described above, since the sheet-like member 1 includes the reinforcing layer 3 extending in the planar direction, the film layer 2 is reinforced. Therefore, the strength of the sheet-like member 1 is increased, and the strength that can withstand the repeated coating of water-insoluble materials and printing is maintained. Furthermore, even when the film layer 2 is wet, the film layer 2 is reinforced by the reinforcing layer 3, so that a decrease in strength of the film layer 2 is reduced.
　また、絶縁性補強部５は非水溶性である。したがって、例えば、シート状部材１に非水溶性の材料によって、所定のパターンを印刷し、その後、シート状部材１を水に溶解させると、水溶性のフィルム層２及び水溶性補強部４は溶けて、非水溶性の絶縁性補強部５は残ることになる。よって、上記所定のパターンは、絶縁性補強部５の上に保持されることになる。したがって、絶縁性補強部５を把持して取り出すことにより、絶縁性補強部５の上に保持された所定のパターンが容易に取り出される。このように、所定のパターン自体を直接把持して取り出す必要がないため、パターンが変形したり破れたりする可能性が低減することになる。 Further, the insulating reinforcing part 5 is water-insoluble. Therefore, for example, when a predetermined pattern is printed on the sheet-like member 1 with a water-insoluble material and then the sheet-like member 1 is dissolved in water, the water-soluble film layer 2 and the water-soluble reinforcing portion 4 are dissolved. Thus, the water-insoluble insulating reinforcing portion 5 remains. Therefore, the predetermined pattern is held on the insulating reinforcing portion 5. Therefore, the predetermined pattern held on the insulating reinforcing portion 5 can be easily taken out by grasping and taking out the insulating reinforcing portion 5. In this way, since it is not necessary to directly grasp and take out the predetermined pattern itself, the possibility that the pattern is deformed or broken is reduced.
　また、絶縁性補強部５によって上記所定のパターンが支持されるため、形成された所定のパターンが水の重み等で変形したり破れたりする可能性が低減することになる。加えて、絶縁性補強部５を覆う水溶性補強部４も水溶性であるため、シート状部材１を水に溶解させると、フィルム層２と共に水溶性補強部４も溶ける。よって、絶縁性補強部５が露出して網目部９も開口することになる。したがって、絶縁性補強部５を把持して水から取り出す際に、網目部９から水が落ち、水切れがよくなる。 Further, since the predetermined pattern is supported by the insulating reinforcing portion 5, the possibility that the formed predetermined pattern is deformed or broken due to the weight of water or the like is reduced. In addition, since the water-soluble reinforcing part 4 covering the insulating reinforcing part 5 is also water-soluble, when the sheet-like member 1 is dissolved in water, the water-soluble reinforcing part 4 is dissolved together with the film layer 2. Therefore, the insulating reinforcement part 5 is exposed and the mesh part 9 is also opened. Therefore, when the insulating reinforcing portion 5 is grasped and taken out from the water, the water falls from the mesh portion 9 and the water drainage is improved.
　また、絶縁性補強部５は絶縁性を有している。したがって、上記所定のパターンが導電性の材料によって形成されていた場合であっても、上記所定のパターンと絶縁性補強部５が導通しない。したがって、上記所定のパターンを絶縁性補強部５から取り外すことなく、他の電子部品等を作成することも可能である。例えば、導電性インク又は導電性トナー等の非水溶性の導電性材料によって、シート状部材１に所定の回路パターンを印刷する。その後、シート状部材１を水に浸けると、フィルム層２及び及び水溶性補強部４が溶けて、所定の回路パターンが絶縁性補強部５の上に載置されることになる。次いで、エポキシ樹脂等の樹脂によって、回路パターンを絶縁性補強部５ごと封止して回路基板を作成する。この場合、回路パターンを絶縁性補強部５から取り外す必要がないため、回路基板の作成が容易になる。
　加えて、シート状部材１によれば、回路パターンのみを形成して取り出すことが容易になるため、様々な形状、サイズの部材に回路パターンを取り付けることが可能になる。 Moreover, the insulating reinforcement part 5 has insulation. Therefore, even if the predetermined pattern is formed of a conductive material, the predetermined pattern and the insulating reinforcing portion 5 do not conduct. Therefore, it is possible to create another electronic component or the like without removing the predetermined pattern from the insulating reinforcing portion 5. For example, a predetermined circuit pattern is printed on the sheet-like member 1 with a water-insoluble conductive material such as conductive ink or conductive toner. Thereafter, when the sheet-like member 1 is immersed in water, the film layer 2 and the water-soluble reinforcing portion 4 are melted, and a predetermined circuit pattern is placed on the insulating reinforcing portion 5. Next, the circuit pattern is sealed together with the insulating reinforcing portion 5 with a resin such as an epoxy resin to create a circuit board. In this case, since it is not necessary to remove the circuit pattern from the insulating reinforcing portion 5, it is easy to create a circuit board.
In addition, according to the sheet-like member 1, since it becomes easy to form and take out only the circuit pattern, the circuit pattern can be attached to members having various shapes and sizes.
　また、絶縁性補強部５は、平面方向に延びる網状のものであるため、シート状部材１の伸縮が防止されることになる。さらに、絶縁性補強部５は無結節に構成されている。したがって、絶縁性補強部５には、結節に起因する厚さ方向Ｄへの突出がない。このように、結節部分がシート状部材１の表面（フィルム層２の一方の主面２ａ）に突出してしまうことがないので、シート状部材１の表面が平滑に保たれる。また、結節部分がシート状部材１の表面に突出しないように、シート状部材１の厚さを厚くする必要がない。
　さらに、絶縁性補強部５は水溶性補強部４に埋設されているため、絶縁性補強部５の凹凸がシート状部材１の表面及び裏面に表出しない。 Moreover, since the insulation reinforcement part 5 is a net-like thing extended in a plane direction, the expansion-contraction of the sheet-like member 1 is prevented. Furthermore, the insulating reinforcement part 5 is configured without knots. Therefore, the insulating reinforcing portion 5 has no protrusion in the thickness direction D due to the knot. Thus, since the knot portion does not protrude from the surface of the sheet-like member 1 (one main surface 2a of the film layer 2), the surface of the sheet-like member 1 is kept smooth. Further, it is not necessary to increase the thickness of the sheet-like member 1 so that the knot portion does not protrude from the surface of the sheet-like member 1.
Furthermore, since the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4, the unevenness of the insulating reinforcing portion 5 does not appear on the front and back surfaces of the sheet-like member 1.
　以上のように、第１の実施形態に係るシート状部材１は、平面方向に延びる補強層３を備えているため、フィルム層２が補強され、シート状部材１の強度を高めることができる。
　また、絶縁性補強部５は非水溶性である。前述のように、フィルム層２が溶解した後に、絶縁性補強部５を把持して取り出すことにより、絶縁性補強部５の上に保持された非水溶性の形成物（例えば、上記所定のパターン等）を容易に取り出すことができる。また、非水溶性の形成物自体を直接把持して取り出す必要がないため、非水溶性の形成物が変形したり破れたりする可能性が低減させることができる。 As described above, since the sheet-like member 1 according to the first embodiment includes the reinforcing layer 3 extending in the planar direction, the film layer 2 is reinforced, and the strength of the sheet-like member 1 can be increased.
Moreover, the insulating reinforcement part 5 is water-insoluble. As described above, after the film layer 2 is melted, the insulating reinforcing portion 5 is grasped and taken out, so that a water-insoluble formation (for example, the predetermined pattern described above) held on the insulating reinforcing portion 5 is obtained. Etc.) can be easily taken out. In addition, since it is not necessary to directly grip and take out the water-insoluble formation itself, the possibility of the water-insoluble formation being deformed or torn can be reduced.
　したがって、第１の実施形態に係るシート状部材１によれば、水溶性のシート状部材１に形成した非水溶性の形成物を取り出しやすくすると共に、シート状部材１の強度を高めることができる。 Therefore, according to the sheet-like member 1 according to the first embodiment, the water-insoluble formation formed on the water-soluble sheet-like member 1 can be easily taken out, and the strength of the sheet-like member 1 can be increased. .
　また、フィルム層２が水分を帯びた場合であっても、補強層３によってフィルム層２が補強されているため、フィルム層２の強度低下を低減させることができる。 In addition, even when the film layer 2 is moist, since the film layer 2 is reinforced by the reinforcing layer 3, a decrease in strength of the film layer 2 can be reduced.
　加えて、絶縁性補強部５によって上記非水溶性の形成物が支持されるため、形成物の形状が水の重み等で変形したり、形成物が破れたりする可能性を低減させることができる。また、シート状部材１を水に溶解させると、前述のように、絶縁性補強部５が露出して網目部９も開口することになるため、絶縁性補強部５を把持して水から取り出す際に、水切れを良くすることができる。 In addition, since the water-insoluble formation is supported by the insulating reinforcing portion 5, it is possible to reduce the possibility that the shape of the formation is deformed due to the weight of water or the formation is torn. . Further, when the sheet-like member 1 is dissolved in water, as described above, the insulating reinforcing portion 5 is exposed and the mesh portion 9 is also opened, so that the insulating reinforcing portion 5 is grasped and taken out from the water. In this case, the water drainage can be improved.
　さらに、絶縁性補強部５は絶縁性を有している。したがって、非水溶性の形成物（例えば、上記所定のパターン等）が導電性の材料によって形成されていた場合であっても、非水溶性の形成物と絶縁性補強部５が導通してしまうことを防止することができる。したがって、前述のように、非水溶性の形成物を絶縁性補強部５から取り外すことなく、回路基板等の電子部品を作成することもできる。
　また、シート状部材１によれば、回路パターンのみを形成して取り出すことが容易になるため、様々な形状、サイズの部材に回路パターンを取り付けることができる。 Further, the insulating reinforcing portion 5 has insulating properties. Therefore, even if a water-insoluble formation (for example, the predetermined pattern) is formed of a conductive material, the water-insoluble formation and the insulating reinforcing portion 5 are electrically connected. This can be prevented. Therefore, as described above, an electronic component such as a circuit board can be created without removing the water-insoluble formation from the insulating reinforcing portion 5.
Moreover, according to the sheet-like member 1, since it becomes easy to form and take out only a circuit pattern, a circuit pattern can be attached to members of various shapes and sizes.
　また、絶縁性補強部５は、平面方向に延びる網状のものであるため、シート状部材１の伸縮を防止することができる。例えば、微細なパターンを印刷する場合には、印刷位置や印刷対象物のサイズがずれないことが望ましい。絶縁性補強部５によって、シート状部材１の伸縮が防止されることにより、正確性がより要求される印刷にも対応することができる。 Moreover, since the insulating reinforcement part 5 is a net-like thing extended in a plane direction, the expansion and contraction of the sheet-like member 1 can be prevented. For example, when printing a fine pattern, it is desirable that the printing position and the size of the printing object do not shift. By preventing the expansion and contraction of the sheet-like member 1 by the insulating reinforcing portion 5, it is possible to cope with printing that requires more accuracy.
　さらに、絶縁性補強部５は無結節に構成されている。したがって、前述のように、シート状部材１の表面を平滑に保つことができる。また、前述のように、結節部分がシート状部材１の表面に突出しないように、シート状部材１の厚さを厚くする必要がないため、シート状部材１を薄く形成することができる。 Furthermore, the insulating reinforcing part 5 is configured without knots. Therefore, as described above, the surface of the sheet-like member 1 can be kept smooth. Further, as described above, since it is not necessary to increase the thickness of the sheet-like member 1 so that the knot portion does not protrude from the surface of the sheet-like member 1, the sheet-like member 1 can be formed thin.
　前述のように、補強層３において、絶縁性補強部５は水溶性補強部４に埋設されている。したがって、絶縁性補強部５の凹凸がシート状部材１の表面及び裏面に表出することを防止することができる。よって、シート状部材１をプリンターやコピー機等の印刷機器に挿入して印刷する場合に、より円滑に印刷を行うことができる。
　また、水溶性補強部４を備えることによって、補強力が高まり、シート状部材の強度をより高めることができる。 As described above, in the reinforcing layer 3, the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4. Therefore, the unevenness of the insulating reinforcing portion 5 can be prevented from appearing on the front and back surfaces of the sheet-like member 1. Therefore, printing can be performed more smoothly when the sheet-like member 1 is inserted into a printing device such as a printer or a copier for printing.
Moreover, by providing the water-soluble reinforcement part 4, a reinforcement force increases and the intensity | strength of a sheet-like member can be raised more.
　前述のように、フィルム層２の一方の主面２ａは平坦面であるため、上記一方の主面２ａに対する非水溶性の材料の塗り重ねや印刷等の作業を容易に行うことができる。 As described above, since one main surface 2a of the film layer 2 is a flat surface, it is possible to easily perform operations such as coating and printing of a water-insoluble material on the one main surface 2a.
　また、フィルム層２は、糊化させて乾燥させた澱粉を含んでいる。したがって、フィルム層２の一方の主面２ａの表面円滑性をより高めることができる。よって、例えば、非水溶性材料によって所定の形状をフィルム層２の一方の主面２ａに印刷した場合、印刷された形状の輪郭をより鮮明にすることができる。例えば、一般的なコピー用紙と比較すると、印刷した文字、画像等の輪郭の滲みがより少なく、よりシャープな印刷が可能になる。 Also, the film layer 2 contains starch that has been gelatinized and dried. Therefore, the surface smoothness of one main surface 2a of the film layer 2 can be further enhanced. Therefore, for example, when a predetermined shape is printed on one main surface 2a of the film layer 2 with a water-insoluble material, the contour of the printed shape can be made clearer. For example, compared to general copy paper, the blurring of outlines of printed characters, images, etc. is less, and sharper printing is possible.
　さらに、糊化させて乾燥させた澱粉は切れにくいため、薄くて丈夫なフィルム層２を形成することができる。また、糊化させて乾燥させた澱粉は、透明又は半透明であるため、フィルム層２も透明又は半透明に形成されることになる。これにより、フィルム層２の一方の主面２ａに、不透明又は有色の材料によって所定の形状、パターン等を印刷等した場合に、その印刷した形状、パターン等の視認が容易になる。
　加えて、糊化させて乾燥させた澱粉は熱に溶けにくいため、一般的な印刷機器を用いてフィルム層２に印刷を行う際に、フィルム層２に熱が加わった場合であっても、フィルム層２が溶けることなく印刷を行うことができる。 Furthermore, since the gelatinized and dried starch is difficult to cut, a thin and strong film layer 2 can be formed. Moreover, since the gelatinized and dried starch is transparent or translucent, the film layer 2 is also formed transparent or translucent. Thereby, when a predetermined shape, pattern, or the like is printed on one main surface 2a of the film layer 2 using an opaque or colored material, the printed shape, pattern, or the like is easily visible.
In addition, since the starch that has been gelatinized and dried is hardly soluble in heat, even when heat is applied to the film layer 2 when printing is performed on the film layer 2 using a general printing device, Printing can be performed without melting the film layer 2.
　シート状部材１においては、前述のように、厚さ寸法（厚さ方向Ｄにおける寸法）ｄ１は、０．１ｍｍ～０．３ｍｍの範囲内のいずれかの数値であることが望ましい。これにより、プリンターやコピー機等の印刷機器によってシート状部材１に印刷を行う際に、印刷機器の内部にシート状部材１が引っかかってしまう可能性を低減させることができる。
　また、シート状部材１の厚さ寸法ｄ１は、均一であるため、上記印刷機器によってシート状部材１に印刷を行う際に、より円滑に印刷を行うことができる。 In the sheet-like member 1, as described above, the thickness dimension (dimension in the thickness direction D) d1 is desirably any numerical value within a range of 0.1 mm to 0.3 mm. Thereby, when printing on the sheet-like member 1 by a printing device such as a printer or a copier, the possibility that the sheet-like member 1 is caught inside the printing device can be reduced.
Moreover, since the thickness d1 of the sheet-like member 1 is uniform, printing can be performed more smoothly when printing is performed on the sheet-like member 1 by the printing apparatus.
　シート状部材１においては、絶縁性補強部５の厚さ寸法ｄ４は均一である。したがって、シート状部材１の全体に亘ってシート状部材を均一に補強することができる。
　前述のように、フィルム層２の厚さ寸法ｄ２は、絶縁性補強部５の厚さ寸法ｄ４よりも薄い。よって、シート状部材１の厚さ寸法ｄ１のうち、絶縁性補強部５の厚さ寸法ｄ４の比率をより大きく確保することができる。したがって、絶縁性補強部５による補強力をより高めることができる。
　シート状部材１において、フィルム層２の厚さ寸法ｄ２は、補強層３の厚さ寸法よりも薄い。よって、シート状部材１の厚さ寸法ｄ１のうち、補強層３の厚さ寸法の比率をより大きく確保することができる。したがって、補強層３による補強力をより高めることができる。 In the sheet-like member 1, the thickness d4 of the insulating reinforcing portion 5 is uniform. Therefore, the sheet-like member can be reinforced uniformly over the entire sheet-like member 1.
As described above, the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, it is possible to ensure a larger ratio of the thickness dimension d4 of the insulating reinforcing portion 5 in the thickness dimension d1 of the sheet-like member 1. Therefore, the reinforcing force by the insulating reinforcing portion 5 can be further increased.
In the sheet-like member 1, the thickness dimension d2 of the film layer 2 is thinner than the thickness dimension of the reinforcing layer 3. Therefore, the ratio of the thickness dimension of the reinforcing layer 3 among the thickness dimension d1 of the sheet-like member 1 can be further ensured. Therefore, the reinforcing force by the reinforcing layer 3 can be further increased.
　また、第１の被膜部６の厚さ寸法ｄ３は、絶縁性補強部５の厚さ寸法ｄ４よりも薄い。よって、補強層３の厚さ寸法のうち、絶縁性補強部５の厚さ寸法ｄ４の比率をより大きく確保することができる。したがって、絶縁性補強部５による補強力をより高めることができる。さらに、第２の被膜部７の厚さ寸法ｄ５は、絶縁性補強部５の厚さ寸法ｄ４よりも薄い。よって、同様に、補強層３の厚さ寸法のうち、絶縁性補強部５の厚さ寸法ｄ４の比率をより大きく確保することができる。したがって、絶縁性補強部５による補強力をより高めることができる。 Further, the thickness dimension d3 of the first coating portion 6 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, a larger ratio of the thickness dimension d4 of the insulating reinforcing portion 5 in the thickness dimension of the reinforcing layer 3 can be ensured. Therefore, the reinforcing force by the insulating reinforcing portion 5 can be further increased. Further, the thickness dimension d5 of the second coating portion 7 is thinner than the thickness dimension d4 of the insulating reinforcing portion 5. Therefore, similarly, the ratio of the thickness dimension d4 of the insulating reinforcing portion 5 in the thickness dimension of the reinforcing layer 3 can be ensured to be larger. Therefore, the reinforcing force by the insulating reinforcing portion 5 can be further increased.
　前述のように、フィルム層２の厚さ寸法ｄ２は、０．０２ｍｍ以上であることが望ましく、第１の被膜部６の厚さ寸法ｄ３も、０．０２ｍｍ以上であることが望ましい。これにより、絶縁性補強部５において糸部８と網目部９によって構成される凹凸が、フィルム層２の一方の主面２ａに表出してしまうことを防止することができる。 As described above, the thickness dimension d2 of the film layer 2 is desirably 0.02 mm or more, and the thickness dimension d3 of the first coating portion 6 is also desirably 0.02 mm or more. Thereby, the unevenness | corrugation comprised by the thread part 8 and the mesh part 9 in the insulating reinforcement part 5 can be prevented from appearing on one main surface 2a of the film layer 2.
　さらに、本実施形態において、絶縁性補強部５は、フィルム層２の他方の主面２ｂ側において、シート状部材１の全面に亘って設けられている。したがって、シート状部材１の全体の強度を高めることができる。 Furthermore, in this embodiment, the insulating reinforcing portion 5 is provided over the entire surface of the sheet-like member 1 on the other main surface 2b side of the film layer 2. Accordingly, the overall strength of the sheet-like member 1 can be increased.
　また、本実施形態では、絶縁性補強部５をガラス繊維によって構成している。したがって、絶縁性補強部５の絶縁性を高めると共に、絶縁性補強部５を構成する糸部８が熱等によって伸縮することを防止することができる。 In this embodiment, the insulating reinforcing portion 5 is made of glass fiber. Therefore, it is possible to increase the insulating property of the insulating reinforcing portion 5 and to prevent the yarn portion 8 constituting the insulating reinforcing portion 5 from expanding and contracting due to heat or the like.
　また、シート状部材１の製造方法は、糊化させた澱粉によって絶縁性補強部５を覆って乾燥させることにより、絶縁性補強部５が水溶性補強部４に埋設された補強層３を形成する補強層形成工程と、補強層３の一方の主面３ａに、澱粉を糊化させた澱粉糊状液を積層させて乾燥させることにより、フィルム層２を形成するフィルム層形成工程とを含んでいる。
　このように、補強層形成工程において、糊化させた澱粉によって絶縁性補強部５を覆って乾燥させることにより、絶縁性補強部５が水溶性補強部４に埋設されるため、絶縁性補強部５の凹凸がシート状部材１の表面及び裏面に表出することを防止することができる。また、フィルム層２を均一の厚さで積層することを容易に行うことができる。 Moreover, the manufacturing method of the sheet-like member 1 forms the reinforcing layer 3 in which the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4 by covering the insulating reinforcing portion 5 with the gelatinized starch and drying it. And a film layer forming step for forming the film layer 2 by laminating and drying a starch paste liquid obtained by gelatinizing starch on one main surface 3a of the reinforcing layer 3. It is out.
In this way, in the reinforcing layer forming step, the insulating reinforcing portion 5 is buried in the water-soluble reinforcing portion 4 by covering the insulating reinforcing portion 5 with the gelatinized starch and drying it, so that the insulating reinforcing portion 5 can be prevented from appearing on the front and back surfaces of the sheet-like member 1. Further, the film layer 2 can be easily laminated with a uniform thickness.
［第２の実施形態］
　図３に、第２の実施形態に係るシート状部材１００における厚さ方向Ｄに沿った断面であり、前述の図１（ｂ）に示す位置に対応する断面図を示す。シート状部材１００の平面形状は、図１（ａ）に示すシート状部材１の平面形状と同様である。ここでは、主として、前述した第１の実施形態と異なる点について説明する。図３において、第１の実施形態と同様の構成要素には、同じ符号を付している。 [Second Embodiment]
FIG. 3 is a cross-sectional view along the thickness direction D in the sheet-like member 100 according to the second embodiment, and shows a cross-sectional view corresponding to the position shown in FIG. The planar shape of the sheet-like member 100 is the same as the planar shape of the sheet-like member 1 shown in FIG. Here, differences from the first embodiment will be mainly described. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals.
　シート状部材１００は、前述のシート状部材１の裏面側に、他のフィルム層１０２を備えた構成を有している。ここでは、前述のフィルム層２を表面側フィルム層２と呼び、他のフィルム層１０２を裏面側フィルム層１０２と呼ぶ。表面側フィルム層２及び補強層３の構成は、第１の実施形態におけるフィルム層２及び補強層３の構成と同様である。 The sheet-like member 100 has a configuration in which another film layer 102 is provided on the back side of the sheet-like member 1 described above. Here, the above-mentioned film layer 2 is called the front surface side film layer 2, and the other film layer 102 is called the back surface side film layer 102. The structure of the surface side film layer 2 and the reinforcement layer 3 is the same as the structure of the film layer 2 and the reinforcement layer 3 in 1st Embodiment.
　裏面側フィルム層１０２は、補強層３の他方の主面３ｂ側に設けられている。したがって、補強層３は、表面側フィルム層２と裏面側フィルム層１０２との間に位置している。裏面側フィルム層１０２は、表面側フィルム層２及び補強層３に沿って、平面方向に延びている。本実施形態において、裏面側フィルム層１０２は、表面側フィルム層２と同様に、平面視したときにシート状部材１００の全面に亘って延びている。 The back film layer 102 is provided on the other main surface 3b side of the reinforcing layer 3. Therefore, the reinforcing layer 3 is located between the front film layer 2 and the back film layer 102. The back film layer 102 extends in the planar direction along the front film layer 2 and the reinforcing layer 3. In this embodiment, the back surface side film layer 102 extends over the entire surface of the sheet-like member 100 when viewed in a plane, similarly to the front surface side film layer 2.
　また、裏面側フィルム層１０２は、表面側フィルム層２と同様に、澱粉を糊化させて乾燥させたものによって構成されている。裏面側フィルム層１０２は、例えば、オブラート等の、植物性の多糖質水溶性フィルムによって構成されていてもよい。裏面側フィルム層１０２の一方の主面１０２ａは、補強層３の他方の主面３ｂ側に位置し、他方の主面３ｂに接している。裏面側フィルム層１０２の他方の主面１０２ｂは、凹凸のない平坦面である。 Moreover, the back surface side film layer 102 is comprised by what gelatinized the starch and dried similarly to the surface side film layer 2. FIG. The back surface side film layer 102 may be constituted by a vegetable polysaccharide water-soluble film such as wafer. One main surface 102a of the back-side film layer 102 is located on the other main surface 3b side of the reinforcing layer 3 and is in contact with the other main surface 3b. The other main surface 102b of the back surface side film layer 102 is a flat surface without unevenness.
　第２の実施形態に係るシート状部材１００の製造方法は、基本的には、前述した第１の実施形態に係るシート状部材１の製造方法と同様である。第１の実施形態と異なる点は、フィルム層形成工程において、補強層３の両面３ａ，３ｂに、澱粉を糊化させた澱粉糊状液を積層させて乾燥させる点である。これにより、表面側フィルム層２と共に裏面側フィルム層１０２を形成することができる。 The manufacturing method of the sheet-like member 100 according to the second embodiment is basically the same as the manufacturing method of the sheet-like member 1 according to the first embodiment described above. The difference from the first embodiment is that, in the film layer forming step, a starch paste liquid obtained by gelatinizing starch is laminated on both surfaces 3a and 3b of the reinforcing layer 3 and dried. Thereby, the back surface side film layer 102 can be formed with the surface side film layer 2.
　第２の実施形態に係るシート状部材１００には、前述の第１の実施形態に係るシート状部材１において述べた利点に加えて、以下のような利点がある。
　第２の実施形態に係るシート状部材１００は、前述のように、平面方向に延びる水溶性の他のフィルム層（裏面側フィルム層）１０２をさらに備えている。したがって、第２の実施形態に係るシート状部材１００によれば、シート状部材１の両面２ａ，１０２ｂに、非水溶性の材料を重ねて、様々な非水溶性の形成物を形成することができる。また、非水溶性の材料の塗り重ね又は印刷面として、シート状部材１００の両面２ａ，１０２ｂが使用できるため、シート状部材の使用時において、表裏を確認する手間を省くことができる。
　加えて、裏面側フィルム層１０２の他方の主面１０２ｂは、平坦面であるため、シート状部材１００の裏面側においても、非水溶性の材料の塗り重ねや印刷等の作業を容易に行うことができる。 The sheet-like member 100 according to the second embodiment has the following advantages in addition to the advantages described in the sheet-like member 1 according to the first embodiment described above.
As described above, the sheet-like member 100 according to the second embodiment further includes the other water-soluble film layer (back side film layer) 102 extending in the planar direction. Therefore, according to the sheet-like member 100 according to the second embodiment, various water-insoluble formations can be formed by superimposing water-insoluble materials on both surfaces 2a and 102b of the sheet-like member 1. it can. Moreover, since both surfaces 2a and 102b of the sheet-like member 100 can be used as the coating or printing surface of the water-insoluble material, it is possible to save the trouble of checking the front and back when using the sheet-like member.
In addition, since the other main surface 102b of the back surface side film layer 102 is a flat surface, it is possible to easily perform operations such as coating and printing of a water-insoluble material on the back surface side of the sheet-like member 100. Can do.
［第３の実施形態］
　図４に、第３の実施形態に係るシート状部材２００における厚さ方向Ｄに沿った断面であり、前述の図１（ｂ）に示す位置に対応する断面図を示す。シート状部材２００の平面形状は、図１（ａ）に示すシート状部材１の平面形状と同様である。ここでは、主として、前述した第１の実施形態と異なる点について説明する。図４において、第１の実施形態と同様の構成要素には、同じ符号を付している。 [Third Embodiment]
FIG. 4 is a cross-sectional view along the thickness direction D of the sheet-like member 200 according to the third embodiment, and shows a cross-sectional view corresponding to the position shown in FIG. The planar shape of the sheet-like member 200 is the same as the planar shape of the sheet-like member 1 shown in FIG. Here, differences from the first embodiment will be mainly described. In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals.
　シート状部材２００においては、フィルム層２の構成は第１の実施形態と同様であり、補強層２０３の構成において、一部異なる点がある。補強層２０３は、絶縁性補強部５と水溶性補強部２０４を備えている。絶縁性補強部５の構成は、第１の実施形態と同様である。 In the sheet-like member 200, the configuration of the film layer 2 is the same as that of the first embodiment, and there are some differences in the configuration of the reinforcing layer 203. The reinforcing layer 203 includes the insulating reinforcing portion 5 and the water-soluble reinforcing portion 204. The configuration of the insulating reinforcing portion 5 is the same as that in the first embodiment.
　第１の実施形態では、水溶性補強部４を構成する材料は、澱粉を糊化させて乾燥させたものであり、フィルム層２を構成する材料と同じである。しかしながら、第３の実施形態に係るシート状部材２００おいて、水溶性補強部２０４を構成する材料は、水溶性繊維を混入させた澱粉を糊化させて乾燥させたものである。本実施形態では、混入させた繊維は水溶性セルロース繊維である。
　したがって、絶縁性補強部５の網目部９には、繊維を混入させた澱粉を糊化させて乾燥させたものが充填されており、絶縁性補強部５の上側と下側には、同じく、繊維を混入させた澱粉を糊化させて乾燥させたものが平面方向に延びている。 In the first embodiment, the material constituting the water-soluble reinforcing portion 4 is obtained by gelatinizing and drying starch, and is the same as the material constituting the film layer 2. However, in the sheet-like member 200 according to the third embodiment, the material constituting the water-soluble reinforcing portion 204 is obtained by gelatinizing starch mixed with water-soluble fibers and drying it. In the present embodiment, the mixed fiber is a water-soluble cellulose fiber.
Therefore, the mesh portion 9 of the insulating reinforcing portion 5 is filled with a starch in which fibers are mixed and dried by gelatinization. On the upper side and the lower side of the insulating reinforcing portion 5, A product obtained by gelatinizing and drying a starch mixed with fibers extends in the plane direction.
　説明のために、水溶性補強部２０４のうち、平面方向に延び、糸部８の上端８ｃとフィルム層２の間に設けられている部分を第１の繊維被膜部２０６と呼ぶ。第１の繊維被膜部２０６の上面２０６ａは、補強層２０３の一方の主面２０３ａを構成し、その上にはフィルム層２が積層されている。また、説明のために、水溶性補強部２０４のうち、平面方向に延び、糸部８の下端８ｄ側に設けられている部分を第２の繊維被膜部２０７と呼ぶ。第２の繊維被膜部２０７の下面２０７ａは、補強層２０３の他方の主面２０３ｂを構成している。また、下面２０７ａは、平坦面であり、シート状部材２００の裏面を構成している。 For the sake of explanation, a portion of the water-soluble reinforcing portion 204 that extends in the planar direction and is provided between the upper end 8c of the yarn portion 8 and the film layer 2 is referred to as a first fiber coating portion 206. The upper surface 206a of the first fiber coating portion 206 constitutes one main surface 203a of the reinforcing layer 203, and the film layer 2 is laminated thereon. For the sake of explanation, a portion of the water-soluble reinforcing portion 204 that extends in the planar direction and is provided on the lower end 8d side of the yarn portion 8 is referred to as a second fiber coating portion 207. The lower surface 207 a of the second fiber coating portion 207 constitutes the other main surface 203 b of the reinforcing layer 203. The lower surface 207a is a flat surface and constitutes the back surface of the sheet-like member 200.
　第３の実施形態に係るシート状部材２００の製造方法は、基本的には、前述した第１の実施形態に係るシート状部材１の製造方法と同様である。第１の実施形態と異なる点は、補強層形成工程において、糊化させた澱粉には、水溶性繊維が混入されている点である。本実施形態では、補強層形成工程において、微細裁断した水溶性セルロース繊維を糊化させた澱粉に混入し、乾燥させている。これにより、水溶性補強部２０４を形成することがきる。 The manufacturing method of the sheet-like member 200 according to the third embodiment is basically the same as the manufacturing method of the sheet-like member 1 according to the first embodiment described above. The difference from the first embodiment is that water-soluble fibers are mixed in the gelatinized starch in the reinforcing layer forming step. In this embodiment, in the reinforcing layer forming step, finely cut water-soluble cellulose fibers are mixed in gelatinized starch and dried. Thereby, the water-soluble reinforcement part 204 can be formed.
　第３の実施形態に係るシート状部材２００には、前述の第１の実施形態に係るシート状部材１において述べた利点に加えて、以下のような利点がある。
　第３の実施形態に係るシート状部材２００において、水溶性補強部２０４は、水溶性繊維を含んでいる。したがって、シート状部材２００によれば、補強層２０３の強度をより高めることができる。よって、シート状部材２００の強度をさらに高めることができる。 In addition to the advantages described in the sheet-like member 1 according to the first embodiment, the sheet-like member 200 according to the third embodiment has the following advantages.
In the sheet-like member 200 according to the third embodiment, the water-soluble reinforcing portion 204 includes water-soluble fibers. Therefore, according to the sheet-like member 200, the strength of the reinforcing layer 203 can be further increased. Therefore, the strength of the sheet-like member 200 can be further increased.
［第４の実施形態］
　図５に、第４の実施形態に係るシート状部材３００における厚さ方向Ｄに沿った断面であり、前述の図１（ｂ）に示す位置に対応する断面図を示す。シート状部材３００の平面形状は、図１（ａ）に示すシート状部材１の平面形状と同様である。ここでは、主として、前述した第３の実施形態と異なる点について説明する。図５において、第１の実施形態及び第３の実施形態と同様の構成要素には、同じ符号を付している。 [Fourth Embodiment]
FIG. 5 is a cross-sectional view along the thickness direction D of the sheet-like member 300 according to the fourth embodiment, and shows a cross-sectional view corresponding to the position shown in FIG. The planar shape of the sheet-like member 300 is the same as the planar shape of the sheet-like member 1 shown in FIG. Here, differences from the above-described third embodiment will be mainly described. In FIG. 5, the same components as those in the first embodiment and the third embodiment are denoted by the same reference numerals.
　シート状部材３００は、前述のシート状部材２００の裏面側に、他のフィルム層３０２を備えた構成を有している。ここでは、第１の実施形態において述べたシート状部材１の表面側に位置するフィルム層２を表面側フィルム層２と呼び、他のフィルム層３０２を裏面側フィルム層３０２と呼ぶ。表面側フィルム層２及び補強層２０３の構成は、第１の実施形態におけるフィルム層２及び第３の実施形態における補強層２０３の構成と同様である。 The sheet-like member 300 has a configuration in which another film layer 302 is provided on the back side of the sheet-like member 200 described above. Here, the film layer 2 located on the front surface side of the sheet-like member 1 described in the first embodiment is referred to as the front surface side film layer 2, and the other film layer 302 is referred to as the back surface side film layer 302. The configurations of the surface-side film layer 2 and the reinforcing layer 203 are the same as the configurations of the film layer 2 in the first embodiment and the reinforcing layer 203 in the third embodiment.
　裏面側フィルム層３０２は、補強層２０３の他方の主面２０３ｂ側に設けられている。したがって、補強層２０３は、表面側フィルム層２と裏面側フィルム層３０２との間に位置している。裏面側フィルム層３０２は、表面側フィルム層２及び補強層２０３に沿って、平面方向に延びている。本実施形態において、裏面側フィルム層３０２は、表面側フィルム層２と同様に、シート状部材３００の全面に亘って延びている。 The back film layer 302 is provided on the other main surface 203b side of the reinforcing layer 203. Therefore, the reinforcing layer 203 is located between the front film layer 2 and the back film layer 302. The back side film layer 302 extends in the planar direction along the front side film layer 2 and the reinforcing layer 203. In the present embodiment, the back-side film layer 302 extends over the entire surface of the sheet-like member 300, similarly to the front-side film layer 2.
　また、裏面側フィルム層３０２は、表面側フィルム層２と同様に、澱粉を糊化させて乾燥させたものによって構成されている。裏面側フィルム層３０２は、例えば、オブラート等の、植物性の多糖質水溶性フィルムによって構成されていてもよい。裏面側フィルム層３０２の一方の主面３０２ａは、補強層２０３の他方の主面２０３ｂ側に位置し、他方の主面２０３ｂに接している。裏面側フィルム層３０２の他方の主面３０２ｂは、凹凸のない平坦面である。 Moreover, the back surface side film layer 302 is comprised by what gelatinized the starch and dried similarly to the surface side film layer 2. FIG. The back surface side film layer 302 may be composed of a vegetable polysaccharide water-soluble film such as wafer. One main surface 302a of the back film layer 302 is located on the other main surface 203b side of the reinforcing layer 203 and is in contact with the other main surface 203b. The other main surface 302b of the back surface side film layer 302 is a flat surface without unevenness.
　第４の実施形態に係るシート状部材３００の製造方法は、基本的には、前述した第３の実施形態に係るシート状部材２００の製造方法と同様である。第３の実施形態と異なる点は、フィルム層形成工程において、補強層２０３の両面２０３ａ，２０３ｂに、澱粉を糊化させた澱粉糊状液を積層させて乾燥させる点である。これにより、表面側フィルム層２と共に裏面側フィルム層３０２を形成することができる。 The manufacturing method of the sheet-like member 300 according to the fourth embodiment is basically the same as the manufacturing method of the sheet-like member 200 according to the third embodiment described above. The difference from the third embodiment is that, in the film layer forming step, a starch paste liquid obtained by gelatinizing starch is laminated on both surfaces 203a and 203b of the reinforcing layer 203 and dried. Thereby, the back surface side film layer 302 can be formed together with the front surface side film layer 2.
　第４の実施形態に係るシート状部材３００には、前述の第３の実施形態に係るシート状部材２００において述べた利点に加えて、以下のような利点がある。
　第４の実施形態に係るシート状部材３００は、前述のように、平面方向に延びる水溶性の他のフィルム層（裏面側フィルム層）３０２をさらに備えている。したがって、第４の実施形態に係るシート状部材３００によれば、シート状部材３００の両面２ａ，３０２ｂに、非水溶性の材料を重ねて、様々な非水溶性の形成物を形成することができる。また、非水溶性の材料の塗り重ね又は印刷面として、シート状部材３００の両面２ａ，３０２ｂが使用できるため、シート状部材の使用時において、表裏を確認する手間を省くことができる。
　加えて、裏面側フィルム層３０２の他方の主面３０２ｂは、平坦面であるため、シート状部材３００の裏面側においても、非水溶性の材料の塗り重ねや印刷等の作業を容易に行うことができる。 The sheet-like member 300 according to the fourth embodiment has the following advantages in addition to the advantages described in the sheet-like member 200 according to the third embodiment described above.
As described above, the sheet-like member 300 according to the fourth embodiment further includes the other water-soluble film layer (back side film layer) 302 extending in the planar direction. Therefore, according to the sheet-like member 300 according to the fourth embodiment, various water-insoluble formations can be formed by superimposing water-insoluble materials on both surfaces 2a and 302b of the sheet-like member 300. it can. Moreover, since both surfaces 2a and 302b of the sheet-like member 300 can be used as a coating or printing surface of a water-insoluble material, it is possible to save the trouble of checking the front and back when using the sheet-like member.
In addition, since the other main surface 302b of the back surface side film layer 302 is a flat surface, operations such as recoating and printing of a water-insoluble material can be easily performed also on the back surface side of the sheet-like member 300. Can do.
［他の実施形態］
　以上、本発明の実施形態について述べたが、本発明は既述の実施形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形及び変更が可能である。
　例えば、シート状部材１，１００，２００，３００の形状は、どのようなサイズであってもよいし、どのような形状であってもよい。一例として、インクジェットプリンター、レーザープリンター、コピー機、プロッター等の一般的な印刷機器によって印刷可能なＡ１、Ａ２、Ａ３、Ａ４、Ｂ５等の用紙サイズであってもよいし、円形、三角形、多角形等の平面形状であってもよい。また、長尺状のシート状部材をロール状にして保管、運搬等するものであってもよい。 [Other Embodiments]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, the shape of the sheet- like members 1, 100, 200, 300 may be any size and any shape. As an example, paper sizes such as A1, A2, A3, A4, and B5 that can be printed by general printing equipment such as an ink jet printer, laser printer, copier, and plotter may be used, and a circle, a triangle, a polygon A planar shape such as Moreover, a long sheet-like member may be rolled and stored or transported.
　絶縁性補強部５の形状は、網状であれば、クロス、メッシュ等どのような形状であってもよい。図６に、その一例を示す。図６（ａ）に示す絶縁性補強部１０５は、糸部１０８と網目部１０９を備え、糸部１０８は第１の糸部１０８ａと第２の糸部１０８ｂを備えている。第１の糸部１０８ａと第２の糸部１０８ｂは直交していて、第１の糸部１０８ａと第２の糸部１０８ｂはシート状部材の幅方向Ｘ及び長さ方向Ｙに対して斜めに延びている。図６（ｂ）に示す絶縁性補強部２０５は、糸部２０８と網目部２０９を備え、糸部２０８は、長さ方向Ｙに沿って波状に延びる複数の波状糸部２０８ａを備えている。波状糸部２０８ａは、幅方向Ｘに突出する波状の突出部２０８ｂにおいて、隣接する波状糸部２０８ａと交差している。 The shape of the insulating reinforcing portion 5 may be any shape such as a cloth or mesh as long as it is a net. An example is shown in FIG. The insulating reinforcing portion 105 shown in FIG. 6A includes a yarn portion 108 and a mesh portion 109, and the yarn portion 108 includes a first yarn portion 108a and a second yarn portion 108b. The first yarn portion 108a and the second yarn portion 108b are orthogonal to each other, and the first yarn portion 108a and the second yarn portion 108b are inclined with respect to the width direction X and the length direction Y of the sheet-like member. It extends. The insulating reinforcing portion 205 shown in FIG. 6B includes a yarn portion 208 and a mesh portion 209, and the yarn portion 208 includes a plurality of wavy yarn portions 208a extending in a wave shape along the length direction Y. The wavy yarn portion 208a intersects the adjacent wavy yarn portion 208a at the wavy protruding portion 208b that protrudes in the width direction X.
　図６（ｃ）に示す絶縁性補強部３０５は、糸部３０８と網目部３０９を備え、糸部３０８は等間隔で互いに平行に延びる複数の第１の糸部３０８ａと、等間隔で互いに平行に延びる複数の第２の糸部３０８ｂを備えている。第１の糸部３０８ａと第２の糸部３０８ｂは、交差している。ここでは、第１の糸部３０８ａと第２の糸部３０８ｂは、直交している。第１の糸部３０８ａと第２の糸部３０８ｂは、それぞれ、複数の細糸３１０の集合として構成されている。細糸３１０は、第１の糸部３０８ａ又は第２の糸部３０８ｂの延伸方向に沿って、直線状に延びている。
　よって、絶縁性補強部３０５によれば、網目部９の空間領域を狭くすることなく、糸部３０８の強度を高めることができる。したがって、前述の水切れ効果を低下させることなく、絶縁性補強部５の強度及び絶縁性補強部５による補強力を高めることができる。 The insulating reinforcing portion 305 shown in FIG. 6C includes a thread portion 308 and a mesh portion 309, and the thread portion 308 is parallel to each other with a plurality of first thread portions 308a extending in parallel to each other at equal intervals. And a plurality of second thread portions 308b extending in the direction. The first yarn portion 308a and the second yarn portion 308b intersect each other. Here, the first yarn portion 308a and the second yarn portion 308b are orthogonal to each other. The first yarn portion 308a and the second yarn portion 308b are each configured as a set of a plurality of thin yarns 310. The thin yarn 310 extends linearly along the extending direction of the first yarn portion 308a or the second yarn portion 308b.
Therefore, according to the insulating reinforcing portion 305, the strength of the yarn portion 308 can be increased without narrowing the space region of the mesh portion 9. Therefore, the strength of the insulating reinforcing portion 5 and the reinforcing force by the insulating reinforcing portion 5 can be increased without reducing the above-mentioned water draining effect.
　なお、上記図６（ａ）～（ｃ）を参照して説明した絶縁性補強部１０５，２０５，３０５には、結び目がなく、無結節の網状に形成されている。
　絶縁性補強部５，１０５，２０５，３０５を構成する糸部８，１０８，２０８，３０８及び網目部９，１０９，２０９，３０９の形状及び大きさも、どのような形状及び大きさであってもよい。また、絶縁性補強部５では、縦糸部８ａと横糸部８ｂとが直交しているが、縦糸部８ａと横糸部８ｂはどのような角度で交差していてもよい。同様に、絶縁性補強部１０５，３０５では、第１の糸部１０８ａ，３０８ａと第２の糸部１０８ｂ，３０８ｂとが直交しているが、第１の糸部１０８ａ，３０８ａと第２の糸部１０８ｂ，３０８ｂはどのような角度で交差していてもよい。 The insulating reinforcing portions 105, 205, and 305 described with reference to FIGS. 6 (a) to 6 (c) have no knots and are formed into a knotless net.
The shape and size of the yarn portions 8, 108, 208, and 308 and the mesh portions 9, 109, 209, and 309 constituting the insulating reinforcing portions 5, 105, 205, and 305 are any shapes and sizes. Good. Further, in the insulating reinforcing portion 5, the warp portion 8a and the weft portion 8b are orthogonal to each other, but the warp portion 8a and the weft portion 8b may intersect at any angle. Similarly, in the insulating reinforcing portions 105 and 305, the first yarn portions 108a and 308a and the second yarn portions 108b and 308b are orthogonal to each other, but the first yarn portions 108a and 308a and the second yarn are the same. The portions 108b and 308b may intersect at any angle.
　第１の実施形態に係る絶縁性補強部５では、糸部８が平織りされており、縦糸部８ａと横糸部８ｂの交差部分において、縦糸部８ａと横糸部８ｂが上下に重なっているが、縦糸部８ａと横糸部８ｂが交差部分において同一平面上で接合するように縦糸部８ａと横糸部８ｂを一体的に形成し、縦糸部８ａと横糸部８ｂが同一平面上に位置するように構成してもよい。
　また、前述の絶縁性補強部５において、複数の細い糸を束にすることによって１本の縦糸部８ａを形成し、複数の細い糸を束にすることによって１本の横糸部８ｂを形成してもよい。 In the insulating reinforcing portion 5 according to the first embodiment, the yarn portion 8 is plain woven, and the warp portion 8a and the weft portion 8b overlap each other at the intersection of the warp portion 8a and the weft portion 8b. The warp yarn portion 8a and the weft yarn portion 8b are integrally formed so that the warp yarn portion 8a and the weft yarn portion 8b are joined on the same plane at the intersecting portion, and the warp yarn portion 8a and the weft yarn portion 8b are arranged on the same plane. May be.
Further, in the above-mentioned insulating reinforcing portion 5, a single warp portion 8a is formed by bundling a plurality of thin yarns, and a single weft portion 8b is formed by bundling a plurality of thin yarns. May be.
　第１の実施形態においては、補強層３に直接フィルム層２が積層されているが、フィルム層２が他の層を介して補強層３に積層されていてもよい。例えば、補強層３の上に、フィルム層２とは異なる材質からなる他の層を積層し、その上にフィルム層２を積層してもよいし、補強層３の上に、フィルム層２と同じ材質からなる他の層を積層し、その上にフィルム層２を積層してもよい。 In the first embodiment, the film layer 2 is directly laminated on the reinforcing layer 3, but the film layer 2 may be laminated on the reinforcing layer 3 through another layer. For example, another layer made of a material different from that of the film layer 2 may be laminated on the reinforcing layer 3, and the film layer 2 may be laminated on the reinforcing layer 3. Another layer made of the same material may be laminated, and the film layer 2 may be laminated thereon.
　補強層３は、水溶性補強部４を備えているが、水溶性補強部４を備えなくてもよい。例えば、絶縁性補強部５に、フィルム層２を直接積層してもよい。また、絶縁性補強部５が水溶性補強部４に埋設されていなくてもよい。例えば、絶縁性補強部５の糸部８の下端８ｄがシート状部材１の裏面に露出していてもよい。
　第１の実施形態においては、水溶性補強部４に絶縁性補強部５を埋設させているが、例えば、非水溶性の材料によって、絶縁性補強部５を覆って補強層３を形成してもよい。
　第３の実施形態では、水溶性補強部２０４に含まれる水溶性繊維として、水溶性セルロース繊維を用いているが、他の繊維材を用いてもよい。 The reinforcing layer 3 includes the water-soluble reinforcing portion 4, but may not include the water-soluble reinforcing portion 4. For example, the film layer 2 may be directly laminated on the insulating reinforcing portion 5. Further, the insulating reinforcing portion 5 may not be embedded in the water-soluble reinforcing portion 4. For example, the lower end 8 d of the thread portion 8 of the insulating reinforcing portion 5 may be exposed on the back surface of the sheet-like member 1.
In the first embodiment, the insulating reinforcing portion 5 is embedded in the water-soluble reinforcing portion 4. For example, the reinforcing layer 3 is formed by covering the insulating reinforcing portion 5 with a water-insoluble material. Also good.
In the third embodiment, water-soluble cellulose fibers are used as the water-soluble fibers included in the water-soluble reinforcing portion 204, but other fiber materials may be used.
　第１の実施形態において、フィルム層２の一方の主面２ａは平坦面であり、第２の実施形態において、フィルム層２の一方の主面２ａと、他のフィルム層１０２の他方の主面１０２ｂは、平坦面であるが、これらの主面２ａ，１０２ｂが平坦面に形成されていなくてもよい。 In the first embodiment, one main surface 2 a of the film layer 2 is a flat surface, and in the second embodiment, one main surface 2 a of the film layer 2 and the other main surface of the other film layer 102. Although 102b is a flat surface, these main surfaces 2a and 102b do not need to be formed in a flat surface.
　また、シート状部材１，１００，２００，３００の製造方法は、前述した方法以外の製造方法であってもよい。一例として、第１の実施形態では、補強層形成工程において、絶縁性補強部５を澱粉糊状液に浸して、水溶性補強部４を形成しているが、他の方法によって、水溶性補強部４を形成してもよい。
　例えば、絶縁性補強部５に澱粉糊状液をかけ流して、水溶性補強部４を形成してもよいし、絶縁性補強部５をオブラートシートで覆うことによって水溶性補強部４を形成してもよい。また、網目部９には、澱粉糊状液を充填させてもよいし、させなくてもよい。例えば、絶縁性補強部５をオブラートシートで覆って水溶性補強部４を形成した場合に、網目部９には空間が保持されていてもよい。 Moreover, the manufacturing method of the sheet-like member 1,100,200,300 may be a manufacturing method other than the method described above. As an example, in the first embodiment, in the reinforcing layer forming step, the insulating reinforcing portion 5 is immersed in the starch paste liquid to form the water-soluble reinforcing portion 4, but the water-soluble reinforcement is formed by other methods. The part 4 may be formed.
For example, the water-soluble reinforcement part 4 may be formed by pouring starch paste liquid over the insulation reinforcement part 5, or the water-soluble reinforcement part 4 is formed by covering the insulation reinforcement part 5 with an oblate sheet. May be. Further, the mesh portion 9 may or may not be filled with a starch paste liquid. For example, when the water-soluble reinforcing portion 4 is formed by covering the insulating reinforcing portion 5 with an oblate sheet, the mesh portion 9 may hold a space.
　また、第１の実施形態では、補強層３を形成してから、フィルム層２を形成しているが、補強層３とフィルム層２を同時に形成してもよい。
　例えば、絶縁性補強部５に澱粉を糊化させた澱粉糊状液を所定の厚さになるまで塗り重ねて、乾燥させることにより、補強層３とフィルム層２を一体的に同時に形成してもよい。 Moreover, in 1st Embodiment, after forming the reinforcement layer 3, the film layer 2 is formed, However, You may form the reinforcement layer 3 and the film layer 2 simultaneously.
For example, the reinforcing layer 3 and the film layer 2 are integrally formed at the same time by applying the starch paste liquid obtained by gelatinizing the insulating reinforcing portion 5 to a predetermined thickness and drying it. Also good.
　第１の実施形態において、フィルム層２及び補強層３は、平面視したときに、シート状部材１の全面に亘って設けられているが、これに限定されない。例えば、シート状部材１の中央部分のみにフィルム層２及び補強層３を設けてもよいし、シート状部材１において、非連続の複数の配置領域に、それぞれフィルム層２及び補強層３を配置してもよい。 In the first embodiment, the film layer 2 and the reinforcing layer 3 are provided over the entire surface of the sheet-like member 1 when viewed in a plan view, but are not limited thereto. For example, the film layer 2 and the reinforcing layer 3 may be provided only in the central portion of the sheet-like member 1, or the film layer 2 and the reinforcing layer 3 are arranged in a plurality of discontinuous arrangement regions in the sheet-like member 1, respectively. May be.
　シート状部材１，１００，２００，３００を構成する各部の材質は、どのような材質であってもよい。例えば、フィルム層２は、水溶性であれば足り、各種の澱粉、アルギン酸ナトリウム、ゼラチン又はプルラン等によって構成してもよい。また、各種の材料を単独で用いてもよいし、混合して用いてもよい。また、各種の添加物を主材料に添加して用いてもよい。 The material of each part constituting the sheet- like member 1, 100, 200, 300 may be any material. For example, the film layer 2 need only be water-soluble, and may be composed of various starches, sodium alginate, gelatin, pullulan, or the like. Various materials may be used alone or in combination. Various additives may be added to the main material.
　シート状部材１，１００，２００，３００の一方の主面２ａ又は両面２ａ，１０２ｂ，３０２ｂを保護するために、シート状部材１，１００，２００，３００の一方の主面２ａ又は両面２ａ，１０２ｂ，３０２ｂに保護フィルムを貼付してもよい。保護フィルムとして、例えば、シリコンゴムをスプレー又は塗布したポリプロピレン、再生ＰＥＴ、生分解性プラスチック等の薄いフィルムを用いてもよい。この場合、フィルム層２又は他のフィルム層１０２，３０２に印刷等を行う際には、この保護フィルムをシート状部材１，１００，２００，３００から剥がして使用することができる。 In order to protect one main surface 2a or both surfaces 2a, 102b, 302b of the sheet- like member 1, 100, 200, 300, one main surface 2a or both surfaces 2a, 102b of the sheet- like member 1, 100, 200, 300 are provided. , 302b may be attached with a protective film. As the protective film, for example, a thin film such as a polypropylene sprayed or coated with silicon rubber, recycled PET, or biodegradable plastic may be used. In this case, when printing or the like is performed on the film layer 2 or the other film layers 102 and 302, the protective film can be peeled off from the sheet- like members 1, 100, 200, and 300 for use.
　マス目や対角線、使用目的に応じた補助線、図柄、所定のパターン等を、フィルム層２、他のフィルム層１０２，３０２又は補強層３，２０３に、水溶性インク等の水溶性材料によって予め印刷しておいてもよい。
　シート状部材１，１００，２００，３００は、既述の用途以外にも、さまざまな用途に用いることができる。
　各部の寸法は、すべて例示であり、既述した数値に限定されない。 Grids, diagonal lines, auxiliary lines according to the purpose of use, designs, predetermined patterns, etc. are preliminarily applied to the film layer 2, the other film layers 102, 302 or the reinforcing layers 3, 203 with a water-soluble material such as water-soluble ink. You may print it.
The sheet- like members 1, 100, 200, and 300 can be used for various purposes other than those described above.
The dimensions of each part are all examples and are not limited to the numerical values described above.
　以上の実施形態等に関し、さらに以下の付記を記す。
（付記１）
　平面方向に延びる水溶性のフィルム層と、
　前記平面方向に延びる補強層とを備え、
　前記フィルム層は、前記補強層に積層されており、
　前記補強層は、前記平面方向に延び絶縁性を有する非水溶性の絶縁性補強部を備え、
　前記絶縁性補強部は、無結節の網状に形成されているシート状部材。 In addition to the above embodiment, the following additional notes will be made.
(Appendix 1)
A water-soluble film layer extending in a plane direction;
A reinforcing layer extending in the planar direction,
The film layer is laminated to the reinforcing layer,
The reinforcing layer includes a water-insoluble insulating reinforcing portion extending in the planar direction and having an insulating property,
The insulating reinforcing portion is a sheet-like member formed in a knotless network.
（付記２）
　前記補強層は、水溶性の材料によって形成された水溶性補強部をさらに備え、前記絶縁性補強部は前記水溶性補強部に埋設されている付記１記載のシート状部材。 (Appendix 2)
The sheet-like member according to supplementary note 1, wherein the reinforcing layer further includes a water-soluble reinforcing portion formed of a water-soluble material, and the insulating reinforcing portion is embedded in the water-soluble reinforcing portion.
（付記３）
　前記水溶性補強部は、糊化させて乾燥させた澱粉を含む付記２記載のシート状部材。 (Appendix 3)
The sheet-like member according to supplementary note 2, wherein the water-soluble reinforcing portion includes starch that has been gelatinized and dried.
（付記４）
　前記水溶性補強部は、水溶性繊維を含む付記２又は付記３記載のシート状部材。 (Appendix 4)
The sheet-like member according to Supplementary Note 2 or Supplementary Note 3, wherein the water-soluble reinforcing portion includes water-soluble fibers.
（付記５）
　前記フィルム層の一方の主面は平坦面であり、前記フィルム層の他方の主面側に、前記補強層が設けられている付記１から付記４のいずれか１項記載のシート状部材。 (Appendix 5)
The sheet-like member according to any one of appendix 1 to appendix 4, wherein one main surface of the film layer is a flat surface, and the reinforcing layer is provided on the other main surface side of the film layer.
（付記６）
　前記平面方向に延びる水溶性の他のフィルム層をさらに備え、前記フィルム層と前記他のフィルム層との間に、前記補強層が設けられており、
　前記他のフィルム層の一方の主面は前記補強層側に位置し、
　前記フィルム層の一方の主面と、前記他のフィルム層の他方の主面は、平坦面である付記１から付記５のいずれか１項記載のシート状部材。 (Appendix 6)
It further comprises a water-soluble other film layer extending in the planar direction, and the reinforcing layer is provided between the film layer and the other film layer,
One main surface of the other film layer is located on the reinforcing layer side,
6. The sheet-like member according to claim 1, wherein one main surface of the film layer and the other main surface of the other film layer are flat surfaces.
（付記７）
　前記フィルム層は、糊化させて乾燥させた澱粉を含む付記１から付記６のいずれか１項記載のシート状部材。 (Appendix 7)
The sheet member according to any one of appendix 1 to appendix 6, wherein the film layer includes starch that has been gelatinized and dried.
（付記８）
　付記２又は付記２に従属する付記３から付記７のいずれか１項に記載のシート状部材の製造方法であって、
　糊化させた澱粉によって前記絶縁性補強部を覆って乾燥させることにより、前記絶縁性補強部が前記水溶性補強部に埋設された前記補強層を形成する補強層形成工程と、
　前記補強層形成工程によって形成された前記補強層の一方の主面又は両面に、澱粉を糊化させた澱粉糊状液を積層させて乾燥させることにより、前記フィルム層を形成するフィルム層形成工程とを含むシート状部材の製造方法。 (Appendix 8)
The method for manufacturing a sheet-like member according to any one of appendix 3 to appendix 7 subordinate to appendix 2 or appendix 2,
A reinforcing layer forming step in which the insulating reinforcing portion forms the reinforcing layer embedded in the water-soluble reinforcing portion by covering and drying the insulating reinforcing portion with gelatinized starch; and
A film layer forming step for forming the film layer by laminating and drying a starch paste liquid obtained by gelatinizing starch on one main surface or both surfaces of the reinforcing layer formed by the reinforcing layer forming step. The manufacturing method of the sheet-like member containing these.
（付記９）
　前記補強層形成工程において、前記糊化させた澱粉には、水溶性繊維が混入されている付記８記載のシート状部材の製造方法。 (Appendix 9)
The manufacturing method of the sheet-like member of Additional remark 8 in which the water-soluble fiber is mixed in the gelatinized starch in the said reinforcement layer formation process.
　１，１００，２００，３００　シート状部材
　２　フィルム層
　３　補強層
　４，２０４　水溶性補強部
　５　絶縁性補強部
　６　第１の被膜部
　７　第２の被膜部
　８　糸部
　９　網目部
　１０２，３０２　裏面側フィルム層（他のフィルム層）

  DESCRIPTION OF SYMBOLS 1,100,200,300 Sheet-like member 2 Film layer 3 Reinforcement layer 4,204 Water-soluble reinforcement part 5 Insulation reinforcement part 6 1st film part 7 2nd film part 8 Yarn part 9 Mesh part 102,302 Back surface Side film layer (other film layers)

Claims (7)

  1. 　平面方向に延びる水溶性のフィルム層と、
    　前記平面方向に延びる補強層とを備え、
    　前記フィルム層は、前記補強層に積層されており、
    　前記補強層は、前記平面方向に延び絶縁性を有する非水溶性の絶縁性補強部を備え、
    　前記絶縁性補強部は、無結節の網状に形成されており、
    　前記補強層は、水溶性の材料によって形成された水溶性補強部をさらに備え、前記絶縁性補強部は前記水溶性補強部に埋設されており、
    　前記水溶性補強部は、水溶性繊維を含むシート状部材。     A water-soluble film layer extending in a plane direction;
    A reinforcing layer extending in the planar direction,
    The film layer is laminated to the reinforcing layer,
    The reinforcing layer includes a water-insoluble insulating reinforcing portion extending in the planar direction and having an insulating property,
    The insulating reinforcing portion is formed in a knotless network,
    The reinforcing layer further includes a water-soluble reinforcing portion formed of a water-soluble material, and the insulating reinforcing portion is embedded in the water-soluble reinforcing portion,
    The water-soluble reinforcing part is a sheet-like member containing water-soluble fibers.
  2. 　前記水溶性補強部は、糊化させて乾燥させた澱粉を含む請求項１記載のシート状部材。 The sheet-like member according to claim 1, wherein the water-soluble reinforcing portion includes starch that has been gelatinized and dried.
  3. 　前記フィルム層の一方の主面は平坦面であり、前記フィルム層の他方の主面側に、前記補強層が設けられている請求項１又は請求項２記載のシート状部材。 3. The sheet-like member according to claim 1, wherein one main surface of the film layer is a flat surface, and the reinforcing layer is provided on the other main surface side of the film layer.
  4. 　前記平面方向に延びる水溶性の他のフィルム層をさらに備え、前記フィルム層と前記他のフィルム層との間に、前記補強層が設けられており、
    　前記他のフィルム層の一方の主面は前記補強層側に位置し、
    　前記フィルム層の一方の主面と、前記他のフィルム層の他方の主面は、平坦面である請求項１から請求項３のいずれか１項記載のシート状部材。     It further comprises a water-soluble other film layer extending in the planar direction, and the reinforcing layer is provided between the film layer and the other film layer,
    One main surface of the other film layer is located on the reinforcing layer side,
    The sheet-like member according to any one of claims 1 to 3, wherein one main surface of the film layer and the other main surface of the other film layer are flat surfaces.
  5. 　前記フィルム層は、糊化させて乾燥させた澱粉を含む請求項１から請求項４のいずれか１項記載のシート状部材。 The sheet-like member according to any one of claims 1 to 4, wherein the film layer includes starch that has been gelatinized and dried.
  6. 　請求項１から請求項５のいずれか１項に記載のシート状部材の製造方法であって、
    　糊化させた澱粉によって前記絶縁性補強部を覆って乾燥させることにより、前記絶縁性補強部が前記水溶性補強部に埋設された前記補強層を形成する補強層形成工程と、
    　前記補強層形成工程によって形成された前記補強層の一方の主面又は両面に、澱粉を糊化させた澱粉糊状液を積層させて乾燥させることにより、前記フィルム層を形成するフィルム層形成工程とを含むシート状部材の製造方法。     It is a manufacturing method of the sheet-like member given in any 1 paragraph of Claims 1-5,
    A reinforcing layer forming step in which the insulating reinforcing portion forms the reinforcing layer embedded in the water-soluble reinforcing portion by covering and drying the insulating reinforcing portion with gelatinized starch; and
    A film layer forming step for forming the film layer by laminating and drying a starch paste liquid obtained by gelatinizing starch on one main surface or both surfaces of the reinforcing layer formed by the reinforcing layer forming step. The manufacturing method of the sheet-like member containing these.
  7. 　前記補強層形成工程において、前記糊化させた澱粉には、水溶性繊維が混入されている請求項６記載のシート状部材の製造方法。
          The method for producing a sheet-like member according to claim 6, wherein in the reinforcing layer forming step, water-soluble fibers are mixed in the gelatinized starch.
PCT/JP2017/022638 2016-07-13 2017-06-20 Sheet-shaped member and method for producing sheet-shaped member WO2018012217A1 (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS5483082A (en) * 1977-12-15 1979-07-02 Kotsukou Oburaato Kk Method and apparatus for laminating wafer
JPH04119833A (en) * 1990-09-11 1992-04-21 Siegel:Kk Pad molded product and preparation thereof
JP2003181964A (en) * 2001-12-13 2003-07-03 Nichiha Corp Paper-made sheet-like base material and method of making the same
JP2010513055A (en) * 2006-12-15 2010-04-30 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Laminate of acidic polysaccharide film
JP2013544671A (en) * 2010-10-15 2013-12-19 エルテーエス ローマン テラピー−ジステーメ アーゲー Laminates with improved moisture retention properties

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483082A (en) * 1977-12-15 1979-07-02 Kotsukou Oburaato Kk Method and apparatus for laminating wafer
JPH04119833A (en) * 1990-09-11 1992-04-21 Siegel:Kk Pad molded product and preparation thereof
JP2003181964A (en) * 2001-12-13 2003-07-03 Nichiha Corp Paper-made sheet-like base material and method of making the same
JP2010513055A (en) * 2006-12-15 2010-04-30 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Laminate of acidic polysaccharide film
JP2013544671A (en) * 2010-10-15 2013-12-19 エルテーエス ローマン テラピー−ジステーメ アーゲー Laminates with improved moisture retention properties

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