WO2018101426A1 - Corps de rouleau - Google Patents

Corps de rouleau Download PDF

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Publication number
WO2018101426A1
WO2018101426A1 PCT/JP2017/043132 JP2017043132W WO2018101426A1 WO 2018101426 A1 WO2018101426 A1 WO 2018101426A1 JP 2017043132 W JP2017043132 W JP 2017043132W WO 2018101426 A1 WO2018101426 A1 WO 2018101426A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
element pattern
sheet
pattern structure
roll body
Prior art date
Application number
PCT/JP2017/043132
Other languages
English (en)
Japanese (ja)
Inventor
聡 内田
岸本　康
雄樹 小手川
Original Assignee
凸版印刷株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 凸版印刷株式会社 filed Critical 凸版印刷株式会社
Priority to JP2018554253A priority Critical patent/JP7056578B2/ja
Priority to EP17876992.3A priority patent/EP3549889A4/fr
Publication of WO2018101426A1 publication Critical patent/WO2018101426A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/412—Roll
    • B65H2301/4127—Roll with interleaf layer, e.g. liner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/13—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/16—Irregularities, e.g. protuberances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/16—Irregularities, e.g. protuberances
    • B65H2511/166—Irregularities, e.g. protuberances relative to diameter, eccentricity or circularity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/12—Surface aspects
    • B65H2701/122—Projecting portions
    • B65H2701/1221—Projecting portions regularly distributed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • This disclosure relates to a roll body.
  • the transfer foil includes, for example, a sheet including a pattern layer having a predetermined shape and a support layer that supports the pattern layer.
  • a transfer foil may be manufactured using a roll-to-roll method (for example, Patent Document 1).
  • the transfer foil or the intermediate sheet is wound around the core.
  • the sheet has a strip shape extending along the extending direction, and is wound around the core along the circumferential direction of the core.
  • the pattern layer of the sheet has a first region having a straight line extending along the extending direction and a second region having a straight line extending along the extending direction and being thinner than the first region.
  • the portion around which the first region is wound and the portion around which the second region is wound are fixed in the axial direction, that is, does not change.
  • a thick portion and a thin portion along the radial direction of the core are formed in the roll body in the axial direction of the core.
  • wrinkles are formed on the sheet due to the difference in thickness between different portions in the axial direction, and the yield of the transfer foil is lowered.
  • Such a problem is not limited to the sheet provided in the transfer foil, but a roll body including a core and a sheet wound around the outer peripheral surface of the core along the circumferential direction of the core, and after being wound around the core , Common to a roll body provided with a sheet from which a winding core is removed. An object of this indication is to provide the roll body which enabled it to suppress that a wrinkle arises in the sheet
  • a roll body for solving the above-mentioned problems includes a sheet which is a multilayer body wound so as to have a cylindrical shape extending in the axial direction, and the sheet extends in a state where the sheet is spread. It has a strip shape extending along the direction.
  • the direction orthogonal to the extending direction is the width direction, and the sheet includes a pattern segmented region including a plurality of first regions and a plurality of second regions.
  • Each of the first regions and each of the second regions has a strip shape extending along a first direction, and includes an edge along the first direction, and the edge is defined by the extending direction and the width direction. It has a shape extending along a direction intersecting both.
  • the first region and the second region are alternately arranged next to each other.
  • the sheet includes a support layer and a pattern structure supported by the support layer.
  • the density of the element pattern structure in the first region is different from the density of the element pattern structure in the second region
  • the arrangement of the element pattern structure in the first region is an element in the second region. Satisfy at least one of different from the arrangement of the pattern structure.
  • the edge of the first region and the edge of the second region extend along the direction intersecting both the extending direction and the width direction, respectively, and the first region and the second region are Since they are arranged alternately, the part around which the edge of the first region is wound and the part around which the edge of the second region is wound are not fixed in the axial direction. Therefore, the difference in the thickness along the radial direction of the core is easily reduced at the boundary between the first region and the second region, and the thickness along the radial direction of the core is abruptly increased in the axial direction of the core. It is suppressed to change to. As a result, the occurrence of wrinkles in the sheet wound around the core is suppressed.
  • a roll body for solving the above-mentioned problem includes a sheet that is a multilayer body wound so as to have a cylindrical shape extending along an axial direction, and the sheet extends in a state in which the sheet is spread. It has a strip shape extending along the line.
  • the sheet includes a pattern division region including a plurality of first regions and a plurality of second regions, and each of the first regions and each of the second regions has a shape extending along a first direction. Have. In the pattern segmentation region, the first region and the second region are alternately arranged next to each other.
  • Each of the first regions includes an edge along the first direction, and the position of the edge of the first region in the circumferential direction of the sheet continuously changes along the axial direction.
  • the sheet includes a support layer and a pattern structure supported by the support layer, and the pattern structure includes a plurality of element pattern structures that form convex portions on the surface of the sheet.
  • the density of the element pattern structure in the first region is different from the density of the element pattern structure in the second region
  • the arrangement of the element pattern structure in the first region is an element in the second region. Satisfy at least one of different from the arrangement of the pattern structure.
  • the position of the edge of the first region in the circumferential direction of the winding core continuously changes along the axial direction.
  • the portion where the edge of the first region is wound around the winding core The region around which the edge of the region is wound is not fixed in the axial direction. Therefore, at the boundary between the first region and the second region, the difference in thickness along the radial direction of the core is likely to be alleviated, and in the axial direction of the core, the thickness along the radial direction of the core is abruptly increased. Change is suppressed. Therefore, wrinkles are suppressed from occurring on the sheet wound around the core.
  • the roll body may further include a winding core extending along the axial direction and having an outer circumferential surface, and the sheet may be wound along the outer circumferential surface of the winding core.
  • the first direction may intersect both the extending direction and the width direction.
  • the first region and the second region extend along the first direction that intersects both the extending direction and the width direction, respectively, and the first region and the second region are alternated. Therefore, in the winding core, the portion around which the edge of the first region is wound and the portion around which the edge of the second region is wound are not fixed in the axial direction. Therefore, variation in thickness along the radial direction of the core is suppressed in the axial direction of the core. As a result, the occurrence of wrinkles in the sheet wound around the core is suppressed.
  • the position of each first region in the circumferential direction of the core may be continuously changed along the axial direction.
  • the position of the first region in the circumferential direction of the winding core changes continuously along the axial direction.
  • the part around which the first region is wound and the part around which the second region is wound are not fixed in the axial direction. Therefore, variation in thickness along the radial direction of the core is suppressed in the axial direction of the core between the first region and the second region. Therefore, the occurrence of wrinkles in the sheet wound around the core is suppressed.
  • the element pattern structure may be located only in the first region. According to the said structure, it is suppressed that a wrinkle arises in the sheet
  • the element pattern structure may have a strip shape having a predetermined thickness over the entire first region.
  • the roll body includes a pattern layer that includes the pattern structure and is a concavo-convex structure supported by the support layer, and the first region is a thick portion including the element pattern structure in the pattern layer.
  • the second region may be a thin portion not including the element pattern structure in the pattern layer.
  • both the first region and the second region include a part of the pattern layer having a predetermined thickness, it is possible to suppress wrinkling of the sheet wound around the core.
  • the pattern structure may include two or more types of the element pattern structures having different shapes in a plan view facing a plane in which the sheet expands.
  • the shape of the pattern structure can be complicated compared to a configuration in which all the element pattern structures have the same shape.
  • the plurality of element pattern structures may have the same shape as each other in a plan view facing a plane in which the sheet expands.
  • the pattern structure includes a plurality of element pattern structure groups, each element pattern structure group includes the plurality of element pattern structures, and each of the first region and each of the second regions includes:
  • the number of the element pattern structures that include the element pattern structure group and belong to the first regions may be different from the number of the element pattern structures that belong to the second regions.
  • the first region not only the first region but also the second region includes the element pattern structure group. Therefore, compared to a configuration in which only the first region includes the element pattern structure group, in a plan view facing the plane in which the sheet expands. The shape of the pattern structure becomes more complicated.
  • a roll body for solving the above-described problems includes a sheet that is a multilayer body wound so as to have a cylindrical shape extending along an axial direction, and the sheet extends in a state in which the sheet is expanded. It has a strip shape extending along the line.
  • the sheet includes a support layer and a plurality of element pattern structure groups formed on the surface of the sheet and periodically arranged along the extending direction. Each element pattern structure group is composed of a plurality of element pattern structures that are supported by the support layer and form convex portions on the surface of the sheet.
  • the partitioned area is an element pattern structure group area.
  • a line parallel to the extending direction is a reference line, and a direction orthogonal to the extending direction is a width direction.
  • a length from one end of the element pattern structure group region in the width direction to the reference line periodically changes along the extending direction.
  • the length from at least one end in the width direction to the reference line parallel to the extending direction changes periodically along the extending direction.
  • the end portion of the element pattern structure group region in the width direction the end portion periodically changes in the axial direction of the core at the end portion in which the length from the reference line changes periodically. Therefore, the occurrence of wrinkles on the sheet wound around the core is suppressed compared to a configuration in which the position of the end portion of the sheet in the axial direction of the core does not change.
  • the convex portion includes at least one prism group in which a plurality of prisms each having a linear shape or an arc shape are arranged in one direction in a plan view facing a plane in which the sheet expands,
  • the prism may be an asymmetric prism having different inclination angles on both sides sandwiching the apex in a cross section along the width direction of the sheet.
  • the part around which the first region is wound and the part around which the second region is wound are not fixed in the axial direction in the winding core, so that there are a plurality of element pattern structures located in the first region. Even if a prism is included, deformation of the prism caused by winding the sheet around the core can be suppressed.
  • wrinkles are suppressed from occurring in the sheet after being wound around the core.
  • seat with which a roll body is provided.
  • wire of FIG. Sectional drawing which shows the structure orthogonal to the axial direction of a core.
  • seat with which the roll body of a comparative example is provided.
  • Sectional drawing which shows the structure which follows the III-III line
  • the fragmentary top view which shows a part of structure of the sheet
  • the partial enlarged plan view which expands and shows the partial structure of the sheet
  • the partial expanded sectional view which expands and shows the partial structure of the element pattern structure in a modification.
  • the partial top view which expands and shows the partial structure of the sheet
  • the partial expanded sectional view which expands and shows the partial structure of the element pattern structure in a modification.
  • the partial top view which expands and shows the partial structure of the sheet
  • the partial expanded sectional view which expands and shows the partial structure of the element pattern structure in a modification.
  • the fragmentary top view which shows a part of structure in the sheet
  • the partial top view which shows a part of structure in the sheet
  • the fragmentary top view which shows a part of structure in the sheet
  • seat with which the 4th example of a roll body is provided.
  • the roll body 10 includes a core 11 and a sheet 12.
  • the core 11 extends along the axial direction and has an outer peripheral surface 11S.
  • the sheet 12 has a strip shape extending along the extending direction D ⁇ b> 1 and is wound around the outer peripheral surface 11 ⁇ / b> S along the circumferential direction DC of the core 11.
  • the shape of the sheet 12 is hardly changed.
  • the sheet 12 is a multilayer body wound so as to have a cylindrical shape extending along the axial direction.
  • the roll body 10 is composed of the winding core 11 and the sheet 12, but may be composed only of the sheet 12.
  • the core 11 is removed from the sheet 12 after the sheet 12 is rolled up.
  • the space defined by the sheet 12 is a core space.
  • the winding core 11 has a cylindrical shape and rotates around the rotation axis A.
  • the direction in which the rotation axis A extends is the axial direction.
  • the axial direction is also the direction in which the cylindrical sheet 12 extends.
  • the direction of rotation about the rotation axis A along the outer peripheral surface 11S of the core 11 is the circumferential direction DC of the core 11.
  • the circumferential direction DC is also a direction along the outer peripheral surface of the sheet 12.
  • a sheet 12 is wound around the outer peripheral surface 11 ⁇ / b> S of the core 11 a plurality of times.
  • the direction orthogonal to the extending direction D1 is the width direction D2.
  • the sheet 12 In a state in which the sheet 12 is expanded, the sheet 12 has a strip shape extending along the extending direction D1 and the width direction D2, and the length along the extending direction D1 in the sheet 12 is longer than the length along the width direction D2. Also significantly longer.
  • the sheet 12 includes a pattern section area 12P composed of a plurality of first areas 12A and a plurality of second areas 12B.
  • Each of the first regions 12A and each of the second regions 12B is a belt-like region extending along the first direction, and each belt-like region extends along a direction intersecting both the extending direction D1 and the width direction D2. It has a shape.
  • each belt-like region has a linear shape extending along a direction intersecting at an angle other than a right angle with respect to both the extending direction D1 and the width direction D2.
  • the extending direction of each band-shaped region is a direction in which a straight line connecting the start point and the end point of the band-shaped region extends.
  • the first direction intersects the extending direction D1 and the width direction D2.
  • the first regions 12A and the second regions 12B are alternately arranged adjacent to each other along the arrangement direction.
  • the first region 12A and the second region 12B are in contact with each other in the arrangement direction.
  • the arrangement direction in which the first region 12A and the second region 12B are arranged may be one direction on the plane in which the sheet 12 expands.
  • the length along the direction orthogonal to the direction in which the first region 12A extends in the plan view facing the plane in which the sheet 12 expands is the width of the first region 12A.
  • the length along the direction orthogonal to the direction in which the second region 12B extends is the width of the second region 12B.
  • the sheet 12 includes a support layer 21 and a pattern structure 22.
  • the pattern structure 22 is supported by the support layer 21, and the pattern structure 22 includes a plurality of element pattern structures 22 a that form convex portions on the surface 12 ⁇ / b> S of the sheet 12.
  • the density of the element pattern structure 22a in the first region 12A is different from the density of the element pattern structure 22a in the second region 12B.
  • the surface of the element pattern structure 22a and the portion of the surface of the support layer 21 that is not covered with the element pattern structure 22a constitute the surface 12S of the sheet 12 that is an uneven surface.
  • the ratio of the area of the element pattern structure 22a belonging to the first area 12A to the area of the first area 12A in the plan view facing the plane in which the sheet 12 expands is the ratio of the area of the element pattern structure 22a in the first area 12A. Density. Further, in a plan view facing the plane in which the sheet 12 expands, the ratio of the area of the element pattern structure 22a belonging to the second region 12B to the area of each second region 12B is the element pattern structure in each second region 12B. The density is 22a.
  • the pattern structure 22 includes a plurality of element pattern structures 22a, and each first region 12A includes an element pattern structure 22a different from the element pattern structures 22a constituting the other first region 12A among the plurality of element pattern structures 22a.
  • the support layer 21 includes a plurality of support portions 21a, and each band-shaped region includes a support portion 21a different from the support portions 21a constituting the other band-shaped regions among the plurality of support portions 21a.
  • Each of the first region 12A and the second region 12B extends along a direction intersecting both the extending direction D1 and the width direction D2, and the first region 12A and the second region 12B are alternately arranged. Therefore, in the core 11, the part around which the first region 12A is wound and the part around which the second region 12B is wound are not fixed in the axial direction, that is, changes. Therefore, even if the density of the element pattern structure 22a differs between the first region 12A and the second region 12B, the thickness variation along the radial direction of the core 11 varies in the axial direction of the core 11. It can be suppressed. As a result, the occurrence of wrinkles on the sheet 12 wound around the core 11 is suppressed.
  • Each of the support layer 21 and the pattern structure 22 may have a single layer structure composed of one layer or a multilayer structure composed of a plurality of layers.
  • the plurality of layers constituting the multilayer structure may include layers formed from different materials.
  • each element pattern structure 22a constituting the pattern structure 22 may have a single layer structure composed of one layer or a multilayer structure composed of a plurality of layers.
  • the element pattern structure 22a is located only in the first region 12A. For this reason, in the configuration in which the density of the element pattern structure 22a in the second region 12B is minimum, it is possible to suppress variation in thickness along the radial direction of the core 11 in the sheet 12.
  • the element pattern structure 22a has a strip shape having a predetermined thickness over the entire first region 12A. Therefore, in the configuration in which the element pattern structures 22a that form the convex portions are arranged with a gap in the arrangement direction, wrinkles are suppressed from occurring in the sheet 12 wound around the winding core 11.
  • each element pattern structure 22a has a linear shape extending along the same direction as the first region 12A to which the element pattern structure 22a belongs, that is, in a direction intersecting both the extending direction D1 and the width direction D2. ing.
  • the element pattern structure 22a has substantially the same thickness throughout the first region 12A.
  • Each recess 22b has a linear shape extending in the same direction as the second region 12B, that is, along a direction intersecting both the extending direction D1 and the width direction D2.
  • the first region 12A and the second region 12B the first region 12A has the element pattern structure 22a, while the second region 12B does not have the element pattern structure 22a. Therefore, the density of the element pattern structure 22a differs between the first region 12A and the second region 12B.
  • FIG. 4 to FIG. 6 shows an example of a cross-sectional structure of the roll body 10 along a plane orthogonal to the axial direction of the core 11.
  • FIGS. 4 to 6 shows a cross-sectional structure of the roll body 10 at portions where the positions in the axial direction are different from each other.
  • each of FIGS. 4 to 6 shows a cross-sectional structure including different portions in the same first region 12A. 4 to 6, for convenience of illustration, the sheet 12 is shown as one circle, and one first region 12A is shown as being located on the outermost layer of the sheet 12 wound around the winding core 11. Yes.
  • the sheet 12 of the roll body 10 described above also has the following configuration. That is, the sheet 12 includes a pattern segmented area 12P composed of a plurality of first areas 12A and a plurality of second areas 12B, and each of the first areas 12A and each of the second areas 12B is in the first direction. It has a shape extending along. In the pattern segmentation area 12P, the first areas 12A and the second areas 12B are alternately arranged next to each other. The position of each first region 12A in the circumferential direction DC of the core 11 continuously changes along the axial direction.
  • FIG. 4 shows a cross-sectional structure of the roll body 10 at the first position in the axial direction.
  • the first portion 12 ⁇ / b> A ⁇ b> 1 of the first region 12 ⁇ / b> A is located at the first position in the axial direction in the roll body 10.
  • the first portion 12A1 is located in a predetermined portion of the sheet 12 in the circumferential direction DC of the core 11. For example, the first portion 12A1 is located immediately above the rotation axis A at the first position in the axial direction.
  • a point located on the outer peripheral surface 11 ⁇ / b> S of the winding core 11 and immediately above the rotation axis A is set as a reference point P, and the rotation axis that is the center of the winding core 11.
  • a straight line extending from A toward the reference point P is set as the reference line LB.
  • the angle formed by the reference line LB and the straight line L connecting the predetermined point on the outer peripheral surface 11S of the core 11 and the rotation axis A is the phase.
  • the phase in the first portion 12A1 is 0 °.
  • FIG. 5 shows a cross-sectional structure of the roll body 10 at the second position in the axial direction and at a position different from the first position.
  • the second portion 12 ⁇ / b> A ⁇ b> 2 of the first region 12 ⁇ / b> A is located at the second position in the axial direction in the roll body 10.
  • the second part 12A2 is a predetermined part of the sheet 12 in the circumferential direction DC of the core 11, and is located at a part different from the part where the first part 12A1 is located. That is, the first portion 12A1 and the second portion 12A2 have different phases in the circumferential direction DC.
  • the phase of the second portion 12A2 is ⁇ ° different from the phase of the first portion 12A1.
  • FIG. 6 shows a cross-sectional structure of the roll body 10 at the third position in the axial direction and at a position different from the first position and the second position. In the axial direction, the second position is sandwiched between the first position and the third position.
  • the third portion 12 ⁇ / b> A ⁇ b> 3 of the first region 12 ⁇ / b> A is located at the third position in the axial direction in the roll body 10.
  • the third portion 12A3 is a predetermined portion of the sheet 12 in the circumferential direction DC of the core 11, and is different from the portion where the first portion 12A1 is located and the portion where the second portion 12A2 is located. positioned.
  • phase of the third portion 12A3 is different from both the phase of the first portion 12A1 and the phase of the second portion 12A2.
  • the phase of the third portion 12A3 is ⁇ ° different from the phase of the first portion 12A1, and is an angle different from ⁇ °, which is the phase of the second portion 12A2.
  • seat 12 is wound helically with respect to the outer peripheral surface 11S of the core 11, the phase in the circumferential direction DC of the core 11 is axial direction in the 1st area
  • FIG. 7 shows a cross section of the roll body 10 along a surface extending along the rotation axis A of the core 11.
  • the thickness of the support layer 21 and the thickness of the element pattern structure 22 a included in the pattern structure 22 are exaggerated.
  • the position where the first region 12 ⁇ / b> A is located in the axial direction DA of the core 11 changes in the radial direction DR of the core 11. It changes continuously with.
  • region 12B is located among the axial directions DA of the core 11 changes continuously with the position in the radial direction DR of the core 11 changing.
  • the part where the first region 12A is located in the axial direction DA and the part where the second region 12B is located in the axial direction DA are not fixed. Therefore, even if the thickness of the first region 12A and the thickness of the second region 12B are different, the difference between the thickness of the first region 12A and the thickness of the second region 12B is not fixed in the axial direction DA. Thereby, in the axial direction DA of the roll body 10, the variation in thickness along the radial direction DR is suppressed, and as a result, the occurrence of wrinkles in the sheet 12 due to such a variation in thickness is suppressed.
  • the outer peripheral surface 11S of the core 11 is more than the portion where the element pattern structure 22a is located in the support layer 21 in the element pattern structure 22a.
  • the sheet 12 may be wound around the core 11 so as to be located closer to the core 11. That is, the sheet 12 may be wound around the core 11 so that the element pattern structure 22a is located on the surface facing the core of the sheet 12. Alternatively, the sheet 12 is wound around the core 11 so that the portion of the support layer 21 where each element pattern structure 22a is located is located closer to the outer peripheral surface 11S of the core 11 than the element pattern structure 22a. Also good. That is, the sheet 12 may be wound around the core 11 so that the element pattern structure 22a is located on the surface opposite to the surface facing the core of the sheet 12.
  • the roll body R includes a core R1 extending along the axial direction, like the roll body 10 of the first embodiment described above, and the core R1 has an outer peripheral surface R1S.
  • the sheet R2 is wound around the outer peripheral surface R1S of the core R1 along the circumferential direction DC of the core R1.
  • the sheet R2 includes a plurality of first regions R2A and a plurality of second regions R2B.
  • the first region R2A and the second region R2B have a linear shape extending along the extending direction D1 in the plan view facing the plane in which the sheet R2 expands, and the first region R2A and the second region R2B Are alternately arranged along the width direction D2.
  • the sheet R2 includes a support layer R21 and a pattern structure R22.
  • the first region R2A is composed of a part of the support layer R21 and the element pattern structure R22a, while the second region R2B is composed of only a part of the support layer R21.
  • the density of the element pattern structure R22a in the first region R2A is larger than the density of the element pattern structure R22a in the second region R2B.
  • each of the first region R2A and the second region R2B extends along the extending direction D1, and the first region R2A and the second region R2B are alternately arranged along the width direction D2. It is out. Therefore, when the sheet R2 is wound around the core R1, the portion where the first region R2A is wound and the portion where the second region R2B is wound are fixed in the axial direction DA of the core R1. Accordingly, in the roll body R, the thickness along the radial direction DR of the core R1 is relatively large at the portion where the first region R2A overlaps, while the radial direction DR is at the portion where the second region R2B overlaps. The thickness along the line becomes relatively small.
  • the first region 12A and the second region 12B are not limited to a straight line shape, and may have a bent line shape having at least one bent portion, or may have a curved shape having at least one bent portion. Even in such a configuration, if the element pattern structure 22a is located over the entire first region 12A and has a predetermined thickness, the same effect as the above-described (3) can be obtained. . Further, if the element pattern structure 22a is located only in the first region 12A, it is possible to obtain the same effect as the above (2). Furthermore, if each of the first region 12A and the second region 12B extends along the direction intersecting both the extending direction D1 and the width direction D2 and is alternately arranged along the arrangement direction, The same effect as (1) described above can be obtained.
  • the element pattern structure 22a may be repeated at a predetermined cycle along the extending direction D1. That is, each element pattern structure 22a has a linear shape extending along the direction intersecting both the extending direction D1 and the width direction D2, and the length in the extending direction D1 is the extension of the sheet 12. It may be shorter than the length along the direction D1.
  • the sheet 12 may include a pattern layer 23.
  • the pattern layer 23 is a concavo-convex structure supported by the support layer 21, the first region 12 A is a thick portion including the element pattern structure 22 a in the pattern layer 23, and the second region 12 B is the pattern layer 23.
  • a thin portion that does not include the element pattern structure 22a may be used. That is, the pattern layer 23 has a first portion 23a included in the first region 12A and a second portion 23b included in the second region 12B, and the first layer 23a is more than the second portion 23b.
  • the protruding portion may be the element pattern structure 22a.
  • the pattern structure 22 is configured by a portion protruding from the second portion 23b in the first portion 23a, and the uneven surface in the pattern layer 23 is an example of the surface 12S of the sheet 12.
  • the first region 12A and the second region 12B may not extend along a direction that intersects both the extending direction D1 and the width direction D2. That is, it may extend along the extending direction D1 or may extend along the width direction D2.
  • in the first region 12A and the second region 12B that is, in the belt-like region, at least a part of the edge of each belt-like region along the extending direction of each belt-like region intersects both the extending direction D1 and the width direction D2. It only has to extend along the direction of In other words, it is only necessary that the edge of each band-shaped region does not extend along the extending direction D1 and includes a portion that does not extend along the width direction D2.
  • the first region 12Aa has a shape extending along the extending direction D1, and includes an edge 12Ae along the extending direction of the first region 12Aa.
  • Each edge 12Ae has a wavy shape having a plurality of bent portions arranged along the extending direction D1, and thereby extends along a direction intersecting both the extending direction D1 and the width direction D2. . That is, each edge 12Ae includes a portion that does not extend along the extending direction D1 and does not extend along the width direction D2.
  • the edge 12Ae of the first area 12Aa is also the edge 12Be of the second area 12Ba adjacent to the first area 12Aa. That is, the edge 12Be of the second region 12Ba also has a wavy line shape having a plurality of bent portions arranged along the extending direction D1, thereby crossing both the extending direction D1 and the width direction D2. It extends along. That is, each edge 12Be includes a portion that does not extend along the extending direction D1 and does not extend along the width direction D2.
  • the position of the edge 12Ae included in each first region 12Aa in the circumferential direction of the core 11 continuously changes along the axial direction.
  • the following effects can be obtained.
  • the part around which the edge 12Ae of the first region 12Aa is wound and the part around which the edge 12Be of the second region 12Ba is wound in the core 11 are not fixed in the axial direction. Therefore, at the boundary between the first region 12Aa and the second region 12Ba, the difference in thickness along the radial direction of the core 11 is easily reduced, and even if the density of the element pattern structure is different from each other, In the axial direction, a sudden change in the thickness along the radial direction of the core 11 can be suppressed. As a result, the occurrence of wrinkles in the sheet 12a wound around the core 11 is suppressed.
  • the edge 12Ae of the first region 12Aa and the edge 12Be of the second region 12Ba each have a folded line shape having a plurality of bent portions arranged along the extending direction D1.
  • it may have a bent line shape having one bent portion, or may have an arc shape.
  • Each element pattern structure may include a plurality of prism groups.
  • FIG. 13 to be referred to below a part of the planar structure of the sheet 12b as viewed from the direction facing the plane in which the sheet 12b expands is shown enlarged.
  • one first region 12Ab is sandwiched between two second regions 12Bb in the width direction D2.
  • a plurality of cells C are partitioned in the first region 12Ab.
  • a plurality of cells C are defined in the element pattern structure 22p located in the first region 12Ab.
  • the plurality of cells C include a cell C having a triangular shape and a cell C having a quadrangular shape in a plan view facing the plane in which the sheet 12b expands.
  • the plurality of cells C may include cells C having different shapes in a plan view facing the plane in which the sheet 12b expands, or all the cells C are opposed to the plane in which the sheet 12b expands. The shape in plan view may be equal.
  • a prism group composed of a plurality of prisms Pr is located.
  • a plurality of prisms Pr having an arc shape are connected along one direction in a plan view facing the plane in which the sheet 12b expands.
  • the plurality of prism groups include prism groups having different directions in which the prisms Pr are connected.
  • the plurality of prism groups includes a prism group in which the number of prisms Pr belonging to one prism group is different from each other, or a prism group in which the pitches of the prisms Pr are different from each other in the direction in which the plurality of prisms Pr are connected.
  • the directions in which the prisms Pr are connected may be equal to each other.
  • the number of the prisms Pr included in each prism group or the prisms Pr in the direction in which the plurality of prisms Pr are connected. May be equal in pitch.
  • a plurality of prism groups are arranged along the extending direction D1, and a plurality of prism groups are arranged along the width direction D2.
  • only one prism group may be positioned in the extending direction D1, while a plurality of prism groups may be arranged in the width direction D2, or only one prism group in the width direction D2. May be arranged, and a plurality of prism groups may be arranged along the extending direction D1.
  • the element pattern structure 22p may be composed of only one prism group.
  • Each prism Pr has an arc shape in a plan view facing the plane in which the sheet 12b expands, but may have a linear shape.
  • the plurality of prism groups may include both a prism group composed of the prism Pr having an arc shape and a prism group composed of the prism Pr having a linear shape, or all the prism groups. , Each prism Pr may have a linear shape.
  • FIG. 14 shows a cross-sectional structure along the thickness direction of the sheet 12b and a cross-sectional structure orthogonal to the direction in which the plurality of prisms Pr extend, in other words, a cross-sectional structure in the width direction D2, and is included in the element pattern structure 22p.
  • An example of a cross-sectional structure corresponding to one prism group is shown.
  • the pitch of the prisms Pr is gradually reduced along the direction in which the plurality of prisms Pr are connected, that is, one of the two inclination angles sandwiching the apex is gradually reduced in the section of the prism Pr. Is described.
  • the pitch of the prisms Pr may be constant as shown in FIG. 13 referred to above, and the two inclination angles sandwiching the apex are both the plurality of prisms. May be constant in the direction in which.
  • each prism Pr is an asymmetric prism having different inclination angles on both sides sandwiching the apex in the cross section along the thickness direction of the sheet 12b. More specifically, each prism Pr has an apex Pra, and in the cross section along the thickness direction of the sheet 12b, the inclination angle on one side is the first inclination angle ⁇ 1 and the inclination on the other side on both sides sandwiching the apex Pra. The angle is the second inclination angle ⁇ 2.
  • Each of the first inclination angle ⁇ 1 and the second inclination angle ⁇ 2 is an angle formed by the surface on which the element pattern structure 22p is located in the support layer 21 and the inclined surface of the prism Pr.
  • the first inclination angle ⁇ 1 and the second inclination angle ⁇ 2 are different from each other, and the first inclination angle ⁇ 1 is an acute angle, while the second inclination angle ⁇ 2 is a right angle. Note that both the first inclination angle ⁇ 1 and the second inclination angle ⁇ 2 may be acute angles.
  • the first inclination angle ⁇ 1 in the prism Pr gradually decreases along the direction in which the plurality of prisms Pr are connected. That is, the pitch of the prisms Pr gradually increases in the direction in which the plurality of prisms Pr are connected.
  • the second inclination angle ⁇ 2 is constant in the direction in which the plurality of prisms Pr are connected. Note that both the first inclination angle ⁇ 1 and the second inclination angle ⁇ 2 may continuously change along the direction in which the plurality of prisms Pr are connected.
  • the element pattern structure 22p has a support portion 22p1 positioned between each prism Pr and the support layer 21 in the thickness direction of the sheet 12b. Each prism Pr protrudes from the support portion 22p1 toward the opposite side of the support portion 22p1 from the side where the support layer 21 is located. The plurality of prisms Pr are connected to each other through the support portion 22p1. The element pattern structure 22p may not include the support portion 22p1.
  • the material for forming the element pattern structure 22p a material having optical transparency may be used, or a material having a characteristic of reflecting most of the light incident on the element pattern structure 22p may be used.
  • the material for forming the element pattern structure 22p is a light-transmitting material, for example, various kinds of resins and dielectrics having a light transmitting property can be used as the material for forming the element pattern structure 22p.
  • the material for forming the element pattern structure 22p is a material having a characteristic of reflecting most of the light incident on the element pattern structure 22p, for example, a metal can be used as the material for forming the element pattern structure 22p.
  • the element pattern structure 22p may include both a layer formed of a light transmissive material and a layer formed of a material that reflects light.
  • the element pattern structure 22p includes cells C in which the directions in which the plurality of prisms Pr are connected differ from each other, and include cells C in which the number of prisms Pr included in one prism group is different from each other. Therefore, between the cells C in which the directions in which the plurality of prisms Pr are arranged are different from each other and between the cells C in which the number of prisms Pr included in one prism group are different from each other, Reflecting characteristics can be made different from each other.
  • a portion including the plurality of prisms Pr may be a prism portion, and the first region may include a buffer portion that sandwiches the prism portion in the width direction D2.
  • the height of the buffer portion is lower than the height of the prism portion, and the buffer portion includes an uneven surface on the surface opposite to the surface in contact with the support layer 21.
  • the first region may further include a transition portion between the prism portion and the buffer portion in the width direction D2.
  • the height of the transition portion is, for example, a size between the height of the prism portion and the height of the buffer portion. Note that the heights of the prism portion, the buffer portion, and the transition portion are the maximum heights of the respective portions. With reference to FIGS. 15 and 16, such a sheet will be described in more detail.
  • FIG. 15 shows an enlarged part of the planar structure of the sheet 12c as viewed from the direction facing the plane in which the sheet 12c expands.
  • FIG. 16 shows a cross-sectional structure along the thickness direction of the sheet 12c and a cross-sectional structure orthogonal to the direction in which the plurality of prisms Pr extend.
  • the first region 12Ab includes a prism part Ac1, a two buffer parts Ac2, and two transition parts Ac3 extending along a direction intersecting the extending direction D1 and the width direction D2.
  • the two buffer portions Ac2 sandwich the prism portion Ac1 in the width direction D2.
  • Each transition portion Ac3 is located between the prism portion Ac1 and each buffer portion Ac2 in the width direction D2.
  • Each buffer part Ac2 and each transition part Ac3 extend along the direction in which the prism part Ac1 extends.
  • the total area of the buffer portions Ac2 is preferably larger than the area of the prism portion Ac1, and the area of each buffer portion Ac2 is greater than the area of the prism portion Ac1. Is preferably larger.
  • the total length of the buffer portions Ac2 is preferably longer than the width of the prism portion Ac1, and the width of each buffer portion Ac2 is longer than the width of the prism portion Ac1. Is more preferable.
  • the buffer portion Ac2 includes an uneven surface on the surface opposite to the surface in contact with the support layer 21.
  • an uneven surface an uneven surface having any one of a function of diffracting light, a function of preventing reflection of light, a function of scattering light, and a function of causing light to interfere can be employed.
  • the uneven surface can also include a plurality of portions having different functions.
  • the transition portion Ac3 can include an uneven surface on the surface opposite to the surface in contact with the support layer 21, as with the buffer portion Ac2.
  • a configuration similar to that of the buffer portion Ac2 can be adopted for the uneven surface of the transition portion Ac3.
  • the surface opposite to the surface in contact with the support layer 21 may be an inclined surface.
  • the inclined surface has an inclination such that the height of the transition portion Ac3 gradually decreases along the direction from the prism portion Ac1 toward the buffer portion Ac2.
  • the prism portion Ac1, the buffer portion Ac2, and the transition portion Ac3 can be integrally formed as one layer. Thereby, it is suppressed that the position of prism part Ac1, buffer part Ac2, and transition part Ac3 shifts with respect to the position of other parts.
  • one original plate may be used, or each original plate may be formed by connecting the prism portion original plate, the buffer portion original plate, and the transition portion original plate. It may be used as one original plate.
  • the first region 12Ac includes the buffer portion Ac2, so that the buffer portion Ac2 has a pressure between the pressure applied to the prism portion Ac1 and the pressure applied to the second region 12Bc.
  • size is applied. Therefore, it is possible to suppress a sudden change in pressure between the pressure applied to the prism portion Ac1 and the pressure applied to the second region 12Bc. As a result, the deformation of the prism portion Ac1 when the sheet 12c is wound is further suppressed.
  • the first region 12Ac includes the transition portion Ac3
  • the step between the prism portion Ac1 and the buffer portion Ac2 is relaxed by the transition portion Ac3. Therefore, the deformation of the prism portion Ac1 is further suppressed.
  • the first region 12Ab includes a prism portion Ac1 extending along a direction intersecting the extending direction D1 and the width direction D2, one buffer portion Ac2 on only one side of the prism portion Ac1 in the width direction D2, and the prism portion. It can also be set as the structure provided with one transition part Ac3 between Ac1 and buffer part Ac2.
  • the first region 12Ab includes only a prism portion Ac1 extending along a direction intersecting the extending direction D1 and the width direction D2 and one buffering portion Ac2 adjacent to the prism portion Ac1. You can also.
  • the first region 12Ab includes only a prism portion Ac1 extending along a direction intersecting the extending direction D1 and the width direction D2, and two buffering portions Ac2 sandwiching the prism portion Ac1 in the width direction D2. It can also be.
  • the first region 12Ab includes a prism portion Ac1 extending along a direction intersecting the extending direction D1 and the width direction D2, two buffer portions Ac2 sandwiching the prism portion Ac1, and two buffer portions Ac2.
  • One transition portion Ac3 may be provided between any one of the prism portions Ac1 and the other buffer portion Ac2 and the prism portion Ac1 may be adjacent to each other.
  • the configuration described above with reference to FIGS. 13 and 14 can be further modified as follows. That is, the configuration described above with reference to FIGS. 13 and 14 can be implemented in combination with the configuration described above with reference to FIG. As shown in FIG. 17, one first region 12Ad is sandwiched between two second regions 12Bd in the width direction D2 in a plan view facing the plane in which the sheet 12d expands. In the first region 12Ad, a plurality of cells C are partitioned as in the first region 12Ab described above.
  • the second region 12Bd includes a protrusion Bd1 extending along the extending direction D1.
  • the second region 12Bd includes a plurality of protrusions Bd1, and the plurality of protrusions Bd1 are spaced apart from each other along the width direction D2. Note that the second region 12Bd may include only one protrusion Bd1.
  • the sheet 12d includes a support layer 21 and a pattern layer 23d.
  • Each of the first region 12Ad and the second region 12Bd includes a different part of the pattern layer 23d.
  • the plurality of prisms Pr included in the first region 12Ad is the element pattern structure 22p, and the first region 12Ad is a thick portion in the pattern layer 23d.
  • the second region 12Bd is a thin portion that does not include the element pattern structure 22p in the pattern layer 23d.
  • the following effects can be obtained when the pattern layer 23d is formed on the support layer 21. That is, when the sheet 12d is manufactured, after forming a coating film for forming the pattern layer 23d on the support layer 21, an original plate for forming the prism Pr is pressed against the coating film. At this time, since the protrusion Bd1 is formed simultaneously with the prism Pr, the original has a pattern corresponding to the protrusion Bd1. As a result, the pattern corresponding to the second region 12Bd is pressed against the portion corresponding to the second region 12Bd in the coating film for forming the pattern layer 23d. Therefore, the portion corresponding to the second region 12Bd in the coating film However, it is possible to suppress lifting from the support layer 21.
  • the second region 12Bd includes the protrusions Bd1
  • the second region 12Bd since the second region 12Bd includes the protrusions Bd1, compared to the case where the second region 12Bd does not have the protrusions, when the sheet 12d is wound around the core 11, a part of the second region 12Bd is Even if it is in contact with the other part of the second region 12Bd, it is possible to suppress blocking between them.
  • the portion of the pattern layer 23d corresponding to the first region 12Ad may include at least one of the buffer portion Ac2 and the transition portion Ac3.
  • the density of the element pattern structure in the first region and the density of the element pattern structure in the second region are different from each other.
  • the density of the element pattern structure in the first region may be equal to the density of the element pattern structure in the second region.
  • the density of the element pattern structure in the first region may be It is only necessary that the arrangement and the arrangement of the element pattern structure in the second region are different from each other.
  • the density of the element pattern structure in the first area and the density of the element pattern structure in the second area are different from each other, and the arrangement of the element pattern structure in the first area and the element in the second area
  • the density of the pattern structure may be different.
  • a second embodiment in which a roll body is embodied will be described with reference to FIGS. 19 to 24.
  • the roll body of the second embodiment is different from the roll body of the first embodiment in that the first region includes a plurality of element pattern structures. Therefore, in the following, such differences will be described in detail, while detailed description of the configuration common to the roll body of the first embodiment will be omitted. Moreover, below, the structure of the 1st example in a roll body to a 5th example is demonstrated in order.
  • the element pattern structure is formed for the purpose of easily distinguishing the portion where the element pattern structure is located from the portion where the element pattern structure is not located in a plan view facing the plane in which the sheet expands. A dot is attached.
  • each of the first region 30 ⁇ / b> A and the second region 30 ⁇ / b> B has a linear shape extending along a direction intersecting both the extending direction D ⁇ b> 1 and the width direction D ⁇ b> 2.
  • the sheet 30 is composed of a support layer 31 and a pattern structure 32.
  • the pattern structure 32 includes a plurality of element pattern structures 32a, and a plurality of element pattern structures 32a belong to one first region 30A.
  • the pattern structure 32 includes two or more types of element pattern structures 32a having different shapes from each other in a plan view facing the plane in which the sheet 30 expands. Therefore, the shape of the pattern structure 32 can be complicated compared to a configuration in which all the element pattern structures 32a have the same shape.
  • each element pattern structure 32a is a portion having a predetermined thickness.
  • the pattern structure 32 is located in the first region 30A, but is not located in the second region 30B.
  • the plurality of element pattern structures 32a are arranged apart from each other along the direction in which the first region 30A extends.
  • Each element pattern structure 32a has a shape expressing one of the alphabets in a plan view opposite to the plane in which the sheet 30 expands.
  • Each element pattern structure 32a has a shape expressing any one of alphabets “G”, “E”, “N”, “U”, and “I”.
  • the sheet 30 includes a support layer 31 and a plurality of element pattern structure groups 32b formed on the surface of the sheet 30 and periodically arranged along the extending direction D1.
  • Each element pattern structure group 32 b is composed of a plurality of element pattern structures 32 a that are supported by the support layer 31 and form convex portions on the surface of the sheet 30.
  • an element pattern structure 32a having a shape representing each of “G”, “E”, “N”, “U”, “I”, “N”, and “E”.
  • one element pattern structure group 32b is configured.
  • a plurality of element pattern structures 32a constituting one element pattern structure group 32b are arranged along a direction intersecting both the extending direction D1 and the width direction D2.
  • a plurality of element pattern structure groups 32 b are repeated at a predetermined cycle in a band-shaped region that extends along the extending direction D ⁇ b> 1 and occupies a part of the sheet 30 in the width direction D ⁇ b> 2.
  • the element pattern structure group region GR is a group of a plurality of element pattern structures 32a constituting one element pattern structure group 32b, and a part of the edge of each element pattern structure 32a. It is divided by enclosing it with an envelope contour line OL that touches.
  • the envelope contour OL is in contact with all the element pattern structures 32a belonging to one element pattern structure group 32b.
  • the envelope contour OL is preferably set so as to include a straight line extending along the direction in which the element pattern structures 32a are arranged.
  • a line parallel to the extending direction D1 is the reference line LD.
  • the reference line LD is set at a position overlapping the sheet 30, but may be set at a position away from the sheet 30.
  • the length from at least one end of the element pattern structure group region GR to the reference line LD in the width direction D2 periodically changes along the extending direction D1.
  • the length from each end of the element pattern structure group region GR to the reference line LD in the width direction D2 changes in one element pattern structure group region GR.
  • the sheet 40 includes a support layer 41 and a pattern structure 42, and the pattern structure 42 includes a plurality of element pattern structure groups 42b.
  • Each element pattern structure group 42b is composed of a plurality of element pattern structures 42a.
  • Each first region 40A and each second region 40B includes an element pattern structure group 42b.
  • a plurality of element pattern structures 42a belonging to one element pattern structure group 42b are arranged apart from each other along the width direction D2.
  • the plurality of element pattern structures 42a belonging to each element pattern structure group 42b have the same configuration as the plurality of element pattern structures 32a in the first example.
  • the plurality of element pattern structure groups 42b belonging to one first region 40A are arranged apart from each other in a direction intersecting both the extending direction D1 and the width direction D2.
  • the plurality of element pattern structure groups 42b extend in the extending direction as in the case of the plurality of element pattern structure groups 42b belonging to one first area 40A. It is preferable that they are spaced apart from each other along a direction intersecting both D1 and the width direction D2.
  • the number of element pattern structure groups 42b belonging to one first area 40A is larger than the number of element pattern structure groups 42b belonging to one second area 40B. More specifically, three element pattern structure groups 42b belong to one first area 40A, and one element pattern structure group 42b belongs to one second area 40B.
  • the element pattern structure belonging to one first area 40A is different from the number of element pattern structure groups 42b belonging to one second area 40B, the element pattern structure belonging to one first area 40A.
  • the number of groups 42b may be other than 3, and the number of element pattern structure groups 42b belonging to one second region 40B may be other than 1.
  • the number of element pattern structure groups 42b belonging to one first area 40A may be smaller than the number of element pattern structure groups 42b belonging to one second area 40B.
  • the sheet 40 expands compared to the configuration in which only the first region 40A includes the element pattern structure group 42b.
  • the shape of the pattern structure 42 becomes more complicated in a plan view facing the plane.
  • the sheet 40 includes a support layer 41 and a plurality of element pattern structure groups 42b formed on the surface of the sheet 40 and periodically arranged along the extending direction D1.
  • Each element pattern structure group 42 b is composed of a plurality of element pattern structures 42 a that are supported by the support layer 41 and form convex portions on the surface of the sheet 40.
  • a plurality of element pattern structures 42a constituting one element pattern structure group 42b are arranged along the width direction D2.
  • Each element pattern structure group 42b has a length over substantially the entire width direction D2 of the sheet 40, and a plurality of element pattern structure groups 42b are repeated at a predetermined cycle along the extending direction D1.
  • every two element pattern structure groups 42b positioned so that the center of the element pattern structure group 42b and the center of the sheet 40 substantially coincide with each other in the width direction D2.
  • an element pattern structure group 42b located near one end and an element pattern structure group 42b located near the other end are alternately arranged one by one. Is located.
  • the envelope contour OL is in contact with all the element pattern structures 42a belonging to one element pattern structure group 42b.
  • the envelope contour OL is preferably set so as to include a straight line extending along the direction in which the element pattern structures 42a are arranged.
  • the length from each end of the element pattern structure group region GR to the reference line LD in the width direction D2 is periodic along the extending direction D1 between the element pattern structure group regions GR. It has changed to.
  • the first region 50A and the second region 50B extend along the direction intersecting both the extending direction D1 and the width direction D2, and the first region 50A and the second region 50B.
  • the edge of each region along the direction in which the region 50B extends has a broken line shape having a plurality of bent portions.
  • the first region 50A and the second region 50B each have a strip shape having a plurality of constricted portions along the extending direction of each region.
  • the width of the first region 50A and the width of the second region 50B are substantially equal to each other.
  • the sheet 50 includes a support layer 51 and a pattern structure 52, and a plurality of element pattern structures 52a belong to one first region 50A.
  • the plurality of element pattern structures 52a are arranged apart from each other along the extending direction of the first region 50A.
  • each element pattern structure 52a has a hexagonal shape, and two sides parallel to each other among the six sides that define each element pattern structure 52a are along the width direction D2. It extends.
  • one element pattern structure 52a belongs to one second region 50B.
  • the element pattern structure 52a is located at the center in the width direction D2, and the position in the width direction D2 in the element pattern structure 52a of the second region 50B is one element pattern structure belonging to each first region 50A. It is equal to the position in the width direction D2 at 52a. Therefore, in the pattern structure 52, a plurality of element pattern structures 52a including the element pattern structures 52a belonging to the second region 50B are continuous along the extending direction D1. All the element pattern structures 52a have the same shape.
  • the third example even if all the element pattern structures have the same shape, it is possible to suppress the element pattern structure from being continuously wound around a predetermined position in the axial direction of the winding core 11, and the sheet 50. , Variation in thickness along the radial direction of the core 11 is suppressed.
  • the sheet 50 includes a support layer 51 and a plurality of element pattern structure groups 52b formed on the surface of the sheet 50 and periodically arranged along the extending direction D1. Yes.
  • Each element pattern structure group 52 b is configured by a plurality of element pattern structures 52 a that are supported by the support layer 51 and form convex portions on the surface of the sheet 50.
  • one element pattern structure group 52b is constituted by a plurality of element pattern structures 52a having a hexagonal shape.
  • a plurality of element pattern structures 52a constituting one element pattern structure group 52b are arranged along a direction intersecting the extending direction D1.
  • the plurality of element pattern structure groups 52b are arranged apart from each other, and one element pattern structure 52a is located between the two element pattern structure groups 52b in the extending direction D1.
  • the envelope contour OL is set along a part of the side of each element pattern structure 52a.
  • the sides that define the ends in the width direction D2 in the element pattern structure group region GR are inclined with respect to both the extending direction D1 and the width direction D2. Therefore, the length from each end of the element pattern structure group region GR to the reference line LD in the width direction D2 changes in one element pattern structure group 52b, and the element pattern structure group region GR extends in the extending direction D1.
  • the distance from the end portion to the reference line LD periodically changes along the extending direction D1.
  • the 4th example in the roll body of 2nd Embodiment is demonstrated.
  • the first region 60A and the second region 60B are arranged along a direction intersecting both the extending direction D1 and the width direction D2.
  • the edge of the first region 60A along the direction in which the first region 60A extends has a folded line shape having a plurality of bent portions, and the first region 60A has a plurality of constricted portions along the direction in which the first region 60A extends. It has a strip shape.
  • the second region 60B has a folded line shape having a plurality of bent portions.
  • the width of the first region 60A is larger than the width of the second region 60B.
  • the sheet 60 includes a support layer 61 and a pattern structure 62, and a plurality of element pattern structures 62a belong to one first region 60A.
  • the plurality of element pattern structures 62a have the same shape as each other in a plan view facing the plane in which the sheet 60 expands.
  • Each element pattern structure 62a has a hexagonal shape, and two sides parallel to each other among the six sides defining each element pattern structure 62a extend along the extending direction D1.
  • the plurality of element pattern structures 62a belonging to one first region 60A are arranged at intervals along the direction in which the first region 60A extends.
  • one element pattern structure 62a does not belong to the second region 60B. That is, the second region 60 ⁇ / b> B is composed of only a part of the support layer 61. According to the fourth example, the same effect as that of the third example can be obtained.
  • the sheet 60 is formed on the surface of the support layer 61 and the sheet 60, and a plurality of element patterns periodically arranged along the extending direction D1. And a structure group 62b.
  • Each element pattern structure group 62 b is configured by a plurality of element pattern structures 62 a that are supported by the support layer 61 and form convex portions on the surface of the sheet 60.
  • one element pattern structure group 62b is configured by the element pattern structure 62a having a hexagonal shape.
  • a plurality of element pattern structures 62a constituting one element pattern structure group 62b are arranged along the width direction D2.
  • a plurality of element pattern structure groups 62b are repeated in a predetermined cycle along the extending direction D1.
  • the number of element pattern structures 62a belonging to one element pattern structure group 62b is different from each other, whereby two types of element pattern structure groups 62b having different end positions in the width direction D2 are different.
  • one element pattern structure group 62b includes three element pattern structures 62a
  • the other element pattern structure group 62b includes two element pattern structures 62a.
  • the envelope contour OL is set along a part of the side of each element pattern structure 62a.
  • the length from each end of the element pattern structure group region GR to the reference line LD in the width direction D2 is periodic along the extending direction D1 between the element pattern structure group regions GR. It has changed to.
  • the first region 70A and the second region 70B extend along a direction that intersects both the extending direction D1 and the width direction D2.
  • regions have the strip
  • the second region 70B has a strip shape, and the second region 70B has a folded line shape in which an edge along the extending direction of the second region 70B has a plurality of bent portions. is doing.
  • the second region 70B includes a portion in which a portion having a hexagonal shape continues along the direction in which the second region 70B extends.
  • the second region 70B has a strip shape having a plurality of constricted portions along the extending direction of the second region 70B.
  • the sheet 70 includes a support layer 71 and a pattern structure 72, and a plurality of element pattern structures 72a belong to one first region 70A.
  • Each element pattern structure 72a has a rhombus shape, and the plurality of element pattern structures 72a are continuous along the extending direction of the first region 70A.
  • each second region 70 ⁇ / b> B includes only a part of the support layer 71. According to the fifth example, the same effect as that of the third example can be obtained.
  • the sheet 70 includes a support layer 71 and a plurality of element pattern structure groups 72b formed on the surface of the sheet 70 and periodically arranged along the extending direction D1.
  • Each element pattern structure group 72 b is composed of a plurality of element pattern structures 72 a that are supported by the support layer 71 and form convex portions on the surface of the sheet 70.
  • One element pattern structure group 72b is constituted by a plurality of element pattern structures 72a having a rhombus shape in a plan view facing a plane in which the sheet 70 expands.
  • a plurality of element pattern structures 72a constituting one element pattern structure group 72b are arranged along a direction intersecting both the extending direction D1 and the width direction D2.
  • Each element pattern structure group 72b has a length over substantially the entire width direction D2, and a plurality of element pattern structure groups 72b are repeated in a predetermined cycle in the extending direction D1.
  • the envelope contour OL is set along the outer edge of each element pattern structure 72a belonging to one element pattern structure group 72b.
  • Each side constituting the element pattern structure 72a having a rhombus shape is inclined with respect to both the extending direction D1 and the width direction D2. Therefore, in one element pattern structure group region GR, the length from each end of the element pattern structure group region GR in the width direction D2 to the reference line LD periodically changes along the extending direction D1, As a result, the distance from each end of the element pattern structure group region GR to the reference line LD periodically changes along the extending direction D1.
  • the element pattern structures are continuously arranged at predetermined positions in the axial direction of the core 11. Winding is suppressed, and the thickness variation along the radial direction of the core 11 is suppressed in the sheet.
  • the element pattern structure group region GR has a length from one end of the element pattern structure group region GR in the width direction D2 to the reference line LD that periodically changes along the extending direction D1, while the other end
  • the length from the portion to the reference line LD may be constant in the extending direction D1. Even in such a configuration, wrinkles may occur in the sheet at the end portion where the distance from the reference line LD to the end portion periodically changes along the extending direction D1 in the element pattern structure group region GR. It can be suppressed.
  • the sheet may include a support layer and a pattern layer, and the pattern layer may be an uneven structure including a pattern structure.
  • the pattern layer a portion that is included in the second region and in which the element pattern structure is not located may have a predetermined thickness.
  • the element pattern structure group 42b belonging to the first area 40A and the element pattern structure group 42b belonging to the second area 40B have different shapes in plan view facing the plane in which the sheet 40 expands. May be. That is, the element pattern structure group belonging to the first area 40A is composed of a plurality of first element pattern structures, and the element pattern structure group belonging to the second area 40B is a second element pattern structure different from the first element pattern structure. May be configured.
  • Each element pattern structure is not limited to the shape described above in a plan view facing the plane in which the sheet expands, and may have a shape that expresses any one of letters, numbers, symbols, and patterns Good.
  • the roll body in each example of the second embodiment may have a configuration that does not include a core while including a sheet as in the modification of the first embodiment.
  • Example 1 A polyethylene terephthalate film having a thickness of 23 ⁇ m was prepared as a substrate, and a relief layer ink having the following composition was applied to the substrate using a gravure printing method so that the thickness after drying was 1 ⁇ m. .
  • a gravure printing method so that the thickness after drying was 1 ⁇ m.
  • six original fabrics having a length of 5000 m were prepared. And the roll body was obtained by winding each original fabric around a core.
  • Hitachi Kasei Co., Ltd.'s Hitaloid 7903 series polyfunctional (Hitaroid is a registered trademark) was used as a urethane acrylate, and BASF's Irgacure 184 (Irgacure was a registered trademark) was used as a photoinitiator.
  • the roll wound around the core is unwound, and using a roll photopolymer method, a cylindrical original plate having an outer circumferential surface is pressed against the coating layer formed using the relief layer ink, Of the coating layer, the surface opposite to the surface in contact with the substrate was processed into an uneven surface.
  • the press pressure was set to 2 kgf / cm 2
  • the press temperature was set to 80 ° C.
  • the press speed was set to 10 m / min.
  • the coating film was cured by irradiating the substrate with ultraviolet rays from the side opposite to the side where the coating film was positioned.
  • a high-pressure mercury lamp was used, and the exposure amount was set to 300 mJ / cm 2 .
  • a relief layer having a relief surface having a sinusoidal shape with a depth of 120 nm and a period of 700 nm was formed, and a support layer composed of a base material and a relief layer was obtained.
  • the roll body was obtained by winding a support layer around a core.
  • the support layer was drawn out from the roll body, and an aluminum layer having a thickness of 70 nm was formed on the entire relief surface of the relief layer using a roll-type vacuum vapor deposition apparatus. Then, the roll body was obtained by winding the support layer which has an aluminum layer around a winding core.
  • a laminated body of an aluminum layer and a support layer was drawn out from the roll body, and a mask was formed on the aluminum layer by applying a mask ink having the following composition using a gravure printing method. At this time, the mask which has a mutually different shape was formed in six roll bodies.
  • the mask for forming the pattern layer demonstrated previously using FIG. 2 is formed in the 1st roll body, and the Example is formed in the 2nd roll body.
  • a mask for forming the pattern layer described above with reference to FIG. 19 was formed.
  • the mask for forming the pattern layer demonstrated previously using FIG. 20 is formed, and in the 4th roll body, In order to obtain the roll body of Example 4, a mask for forming the pattern layer described above with reference to FIG. 21 was formed.
  • the mask for forming the pattern layer demonstrated previously using FIG. 22 is formed, and in the 6th roll body, In order to obtain the roll body of Comparative Example 1, a mask for forming the pattern layer described above with reference to FIG. 9 was formed. Further, after drying, a mask ink was applied to the aluminum layer so that each mask had a thickness of 3 ⁇ m.
  • the sheet composed of the support layer and the element pattern structure was obtained by performing an alkali etching treatment on the laminate of the support layer and the aluminum layer. And the roll body was obtained by winding a sheet

Landscapes

  • Winding Of Webs (AREA)
  • Laminated Bodies (AREA)

Abstract

Dans une feuille (12) d'un corps de rouleau (10) enroulée autour d'un noyau d'enroulement (11) le long de la direction périphérique de celui-ci, chaque première région (12A) et chaque seconde région (12B) présentent des formes de type courroie s'étendant le long d'une première direction, et comprennent des bords le long de la première direction. Les bords s'étendent dans des directions croisant à la fois la direction d'extension (D1) et la direction de largeur (D2), et les premières régions (12A) et les secondes régions (12B) sont disposées en alternance côte à côte. Ainsi, la génération de plis dans la feuille (12) enroulée autour du noyau d'enroulement (11) est supprimée par changement d'une partie au niveau de laquelle la première région (12A) est enroulée et d'une partie au niveau de laquelle la seconde région (12B) est enroulée.
PCT/JP2017/043132 2016-11-30 2017-11-30 Corps de rouleau WO2018101426A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018554253A JP7056578B2 (ja) 2016-11-30 2017-11-30 ロール体
EP17876992.3A EP3549889A4 (fr) 2016-11-30 2017-11-30 Corps de rouleau

Applications Claiming Priority (6)

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JP2016232723 2016-11-30
JP2016-232723 2016-11-30
JP2017-115134 2017-06-12
JP2017115134 2017-06-12
JP2017-151674 2017-08-04
JP2017151674 2017-08-04

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WO2018101426A1 true WO2018101426A1 (fr) 2018-06-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0842058A (ja) * 1994-08-03 1996-02-13 Misawa Homes Co Ltd 防水シート付き建築用パネルの製造方法
JPH08196800A (ja) * 1994-11-25 1996-08-06 Daio Paper Corp 洗濯用タグ、洗濯用タグシートおよびその製造方法
JP2013144440A (ja) 2013-02-08 2013-07-25 Dainippon Printing Co Ltd 転写箔の製造方法
WO2014103802A1 (fr) * 2012-12-26 2014-07-03 コニカミノルタ株式会社 Procédé de fabrication de panneau électroluminescent organique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55100123A (en) * 1979-01-24 1980-07-30 Du Pont Web of thermal plastic film material and its preparation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0842058A (ja) * 1994-08-03 1996-02-13 Misawa Homes Co Ltd 防水シート付き建築用パネルの製造方法
JPH08196800A (ja) * 1994-11-25 1996-08-06 Daio Paper Corp 洗濯用タグ、洗濯用タグシートおよびその製造方法
WO2014103802A1 (fr) * 2012-12-26 2014-07-03 コニカミノルタ株式会社 Procédé de fabrication de panneau électroluminescent organique
JP2013144440A (ja) 2013-02-08 2013-07-25 Dainippon Printing Co Ltd 転写箔の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3549889A4

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JP7056578B2 (ja) 2022-04-19
EP3549889A4 (fr) 2019-12-25
JPWO2018101426A1 (ja) 2019-10-24
EP3549889A1 (fr) 2019-10-09

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