WO2018097068A1 - Molded article sheet, molded article piece, and production method for molded article sheet - Google Patents

Molded article sheet, molded article piece, and production method for molded article sheet Download PDF

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Publication number
WO2018097068A1
WO2018097068A1 PCT/JP2017/041553 JP2017041553W WO2018097068A1 WO 2018097068 A1 WO2018097068 A1 WO 2018097068A1 JP 2017041553 W JP2017041553 W JP 2017041553W WO 2018097068 A1 WO2018097068 A1 WO 2018097068A1
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WO
WIPO (PCT)
Prior art keywords
molded body
molded
main surface
ear
sheet
Prior art date
Application number
PCT/JP2017/041553
Other languages
French (fr)
Japanese (ja)
Inventor
諭 金杉
恭基 福士
藤井　誠
直己 上村
正文 伊藤
尾関　正雄
Original Assignee
旭硝子株式会社
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 旭硝子株式会社 filed Critical 旭硝子株式会社
Publication of WO2018097068A1 publication Critical patent/WO2018097068A1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending

Definitions

  • the present invention relates to a molded body sheet, a molded body piece, and a method for manufacturing a molded body sheet.
  • the production of a molded glass having a curved surface part at least in part is performed by heating a glass substrate placed on a mold to a softening point and deforming the glass substrate according to the mold. It is produced through.
  • Patent Document 1 describes a molding method in which a plurality of products are molded from a single glass material using a mold having a plurality of molding recesses formed on the upper surface.
  • Patent Document 2 discloses a method in which a plate glass is placed on a mold made of a material such as silicon carbide, and heated by a radiation heater to form the plate glass into a desired surface shape.
  • Patent Documents 1 and 2 since a vent hole for exhausting air from the mold during vacuum forming is provided in the product surface, the hole trace is transferred in the product surface, and the molded glass There is a problem that the quality of the. Moreover, the process for deleting this hole trace is needed, and a process man-hour increases.
  • the glass substrate after molding is usually provided with an alignment mark that is used when the molded glass (product) is post-cut, and the mark is provided on the flat portion.
  • the flat portion is easily deformed at the time of cooling after molding, in the above case, the mark is also deformed, so that it is difficult to use it as an alignment mark, and there is room for improvement.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a molded body sheet, a molded body small piece, and a molded body sheet manufacturing method that can accurately cut and process a molded body having a curved surface portion. It is to provide.
  • a molded sheet having a first main surface and a second main surface The molded body sheet includes a molded body, and an ear portion that is an outer edge portion of the molded body sheet and is connected to a peripheral edge portion of the molded body.
  • the peripheral portion of the molded body includes a side surface portion by a molded body side surface portion and an ear portion side surface portion,
  • the molded body includes a convex portion protruding from the second main surface, and a concave portion formed at a position corresponding to the convex portion of the first main surface,
  • the molded object sheet which has a 1st alignment mark in the said ear
  • the ear portion has an ear portion side base portion around the ear portion side surface portion, The molded sheet according to any one of (1) to (6), wherein the ear portion side base portion includes a second alignment mark.
  • the ear portion has an ear portion side base portion around the ear portion side surface portion,
  • a surface formed including a boundary line between the ear portion side base portion and the ear portion side surface portion in the second main surface is a reference surface
  • the molded sheet according to any one of (1) to (8), wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the ear side base to the reference surface is 1 mm or less.
  • the molded body sheet according to (10), wherein the convex portion that constitutes the molded body and protrudes from the second main surface has a curved shape with a curvature radius of 0.1 mm to 10 mm.
  • a compact piece having a first main surface and a second main surface The molded body piece includes one molded body and a support portion connected to the peripheral edge of the molded body, The peripheral portion of the molded body includes a side surface portion by a molded body side surface portion and a support portion side surface portion, The molded body includes a convex portion protruding from the second main surface, and a concave portion formed at a position corresponding to the convex portion of the first main surface, A compact piece having a first alignment mark on the side surface portion on the support portion side.
  • the first alignment mark is formed on the second main surface of the compact piece,
  • the arithmetic average surface roughness Ra2 ′ of the first alignment mark is a molded body piece according to (13), which is smaller than the arithmetic average surface roughness Ra2 of the second main surface.
  • the support part has a support part side base around the support part side surface part, When a surface formed including a boundary line between the support portion side base portion and the support portion side surface portion in the second main surface is a reference surface, The shaped piece according to (13) or (14), wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the support portion side surface portion to the reference surface is 1 mm or less.
  • a molded body sheet comprising a molded body and an ear portion connected to a peripheral edge portion of the molded body, and having a side surface portion including a molded body side surface portion and an ear portion side surface portion on the peripheral edge portion of the molded body.
  • a manufacturing method for manufacturing from a glass substrate Place the glass substrate on the lower mold, Molding the molded body shaped like the lower mold on the glass substrate, The lower mold has an upper surface in contact with the glass substrate, The said upper surface is provided with the surface shape which provides the said side part of the said molded object, and the mark formation part which provides the 1st alignment mark for alignment to the said ear
  • the mark forming portion is a hole penetratingly formed from the upper surface of the lower mold to the other surface of the lower mold, and when the molded body is molded, the lower portion in contact with the glass substrate.
  • the first alignment mark is provided on the ear side surface side surface which is the outer side of the molded body among the side surface portions, no hole marks remain in the molded body, and The first alignment mark is prevented from being deformed at the time of cooling after molding, and the molded body having the molded body side surface portion can be precisely cut and processed.
  • the molded body sheet has an upper surface including a surface shape that imparts a side surface portion to the molded body and a mark forming portion that imparts the first alignment mark to the side surface portion on the ear portion side.
  • a glass substrate is placed on the lower mold, and the glass substrate is molded into a molded body having a shape that follows the lower mold.
  • FIG. 3 is a plan view of FIG. 2.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 1.
  • A) is the schematic which shows the process of preparing a shaping
  • FIG. (A) is a step of placing a glass substrate on a preheated mold and fixing the glass substrate by a restraining jig
  • (b) is a step of raising the temperature of the glass substrate to a molding temperature to form a molded body sheet.
  • FIG. (A) is the process which cools a molded object sheet
  • (b) is the schematic which shows the process of releasing a molded object sheet
  • FIG. 4D is a schematic plan view of a cut compact body piece
  • FIG. 4D is a schematic plan view of a compact body (product) having a peripheral edge processed after being cut by a design line.
  • a molded body having a side part at least in part is a glass substrate preparation process, an antiglare treatment process, a molding process, a dimension adjustment process, a chamfering process, a strengthening process, a printing process, and a reflection process. It is manufactured through functional layer processing steps such as a prevention layer and a fingerprint removal layer.
  • the order of each process is not limited above, It can set arbitrarily.
  • the side part of a molded object is generally formed by shape
  • the glass substrate after molding is referred to as a molded body sheet.
  • the molded body sheet 10 of the present embodiment has a substantially rectangular shape, and includes a plurality of molded bodies 20 arranged in alignment in the XY direction, and an outer edge portion of the molded body sheet 10. And a support portion 22 for connecting the adjacent molded bodies 20 to each other.
  • the direction in which one side of the molded body sheet 10 extends is the X direction
  • the direction in which the other side perpendicular to the one side extends is the Y direction
  • the direction orthogonal to the X direction and the Y direction is the Z direction.
  • the molded body 20 has a substantially rectangular shape having a curved shape such as an arc at each corner in plan view.
  • the molded body 20 is a portion that becomes a product by being cut by a design line DL, which will be described later, and processing the periphery of the molded body.
  • disconnection used as a molded object among the molded object sheets 10 is also called the molded object 20 for convenience.
  • the molded body sheet 10 includes a side surface portion 23 formed by being curved toward the Z direction at the peripheral edge of the molded body 20. That is, the side surface portion 23 includes a molded body side surface portion 23a, an ear portion side surface portion 23b, and a support portion side surface portion 23c.
  • the molded body 20 includes a molded body side inner surface portion 20a and a molded body side surface portion 23a.
  • the ear portion 21 includes an ear portion side surface portion 23b and an ear portion side base portion 24a having a height different from that of the molded body inner surface portion 20a around the ear portion side surface portion 23b.
  • a side surface portion 23c and a support portion side base portion 24b having the same height as the ear portion side base portion 24a are provided around the support portion side surface portion 23c.
  • the ear portion side base portion 24a and the support portion side base portion 24b are not particularly limited in a plane or a curved surface.
  • the molded body 20 on the molded body sheet includes one in which the peripheral portion of the molded body 20 is surrounded by the ear portion 21 and the support portion 22 and one that is surrounded only by the support portion 22.
  • the one molded object 20 is formed in the molded object sheet
  • all the peripheral parts of the molded object 20 are enclosed by the ear
  • the convex portion of the molded body 20 is formed on the second main surface S2 of the molded body sheet 10 (molded body small piece 30) that comes into contact with a molding surface 51 (see FIG. 5) of the molding die 50 described later in the molding process.
  • the concave portion 20 is formed on the first main surface S1 of the molded body sheet 10 (molded body small piece 30) opposite to the second main surface S2.
  • the convex portion preferably has a curved shape with a radius of curvature of 0.1 mm to 10 mm, more preferably 0.2 mm to 5.0 mm, and still more preferably 0.5 mm to 3.0 mm. This is to improve aesthetics and tactile sensation while maintaining strength.
  • the curvature radius of the convex portion when the curvature radius of the convex portion is less than 0.1 mm, stress tends to concentrate on the convex portion at the time of collision, which may cause a decrease in strength.
  • the curvature radius of the convex part when the curvature radius of the convex part is larger than 10 mm, the convex part is not sharp and the aesthetic appearance is impaired, and the contact area when touched by the hand is increased and the sliding property is lowered, so that the touch feeling is impaired. .
  • the arithmetic average surface roughness Ra2 of the second main surface S2 is larger than the arithmetic average surface roughness Ra1 of the first main surface S1 (Ra2> Ra1).
  • the arithmetic mean surface roughness Ra1 of the first main surface S1 is preferably 1 ⁇ m or less, the surface waviness Wa is preferably 1 ⁇ m or less, Ra1 is preferably 0.1 ⁇ m or less, and Wa is more preferably 0.1 ⁇ m or less.
  • the molded body sheet 10 is also referred to as a first alignment mark 25 (hereinafter also referred to as “first mark 25”) that can be used as an alignment mark for finishing when the molded body 20 is cut from the molded body sheet 10.
  • the first mark 25 includes a second alignment mark 26 (hereinafter also referred to as “second mark 26”) that can be used as a rough cutting alignment mark during rough cutting before cutting into the molded body 20.
  • the second mark 26 is provided for each molded body 20, and in the present embodiment, the corners (four locations) of the molded body 20 are curved and at positions outside the molded body 20.
  • the second main surface S2 is provided so as to protrude.
  • each of the first marks 25 has two rough edges, which will be described later, outside the curved corners of the molded body 20 (design line DL) in the ear side surface 23b and the support side surface 23c. It is formed in a region Z (shaded region in FIG. 3) that is inside the cutting line CL. This region Z is the side portions 23b and 23c that can ensure a long distance from the design line DL at the stage of cutting with the rough cutting line CL, and it is easy to ensure the diameter dimension of the first mark 25.
  • Each of the second marks 26 is a protrusion formed in a substantially L shape in the ear portion side base portion 24a and the support portion side base portion 24b, and a straight line connecting a pair of opposing second marks 26 is
  • the molded body sheet 10 is formed so as to coincide with a rough cutting line CL for dividing the molded body sheet 10 into the molded body small pieces 30.
  • the design line DL and the rough cutting line CL are not actual lines on the molded body sheet 10, but a thin line may be formed by a mold trace transfer or the like for a mark or the like.
  • the 1st mark 25 should just be recognized as an alignment mark when it projects with a camera etc., and is formed within 10 mm of the outer side of the molded object 20.
  • the arithmetic average surface roughness Ra2 ′ of the first mark 25 is smaller than the arithmetic average surface roughness Ra2 of the second main surface S2.
  • the shape of the first mark 25 is not particularly limited, and can be any shape such as a circle, an ellipse, or a polygon.
  • the first mark 25 shown in FIGS. 2 and 3 is formed in a columnar shape on the second main surface S2 side by using the exhaust hole 52 (see FIG. 5) of the forming die 50 in vacuum forming as a mark forming portion. Protrusively formed.
  • the diameter of the first mark 25 is preferably 5 mm or less, and more preferably 2 mm or less. This is because when the diameter of the exhaust holes 52 is 5 mm or less, the exhaust speed can be increased during vacuum forming to form the exhaust holes 52 in a short time, and the transfer amount of the exhaust holes 52 to the molded body sheet 10 can be reduced. Finishing such as chamfering 52 can be reduced.
  • the width C of the second mark 26 is preferably 10 mm or less, more preferably 1 mm or less. This is effective for maintaining the flatness of the second mark 26.
  • the second mark 26 may be an L-shaped groove formed on the second main surface S2.
  • At least one second mark 26 is formed on the outside of the molded body 20 and there are two or more second marks 26 in order to obtain higher accuracy. Thereby, after the positioning in the Z direction, if the two points of the ear portion side base portion 24a or the support portion side base portion 24b are determined, the position of the molded body sheet 10 can be determined. Further, the first mark 25 and the second mark 26 may be formed as a connected mark.
  • W2 may be the same or different.
  • the widths W1 and W2 are preferably 20 mm or more as the width into which a molded sheet conveying wheel (not shown) can be inserted, taking into account the yield of the molded body 20 obtained from one molded body sheet 10. Determined.
  • a surface formed including the boundary line between the ear portion side base portion 24a and the ear portion side surface portion 23b in the second main surface S2 (convex portion side) is defined as a reference surface SS.
  • the length of the perpendicular L1 drawn from the arbitrary point of the second main surface S2 of the ear side base 24a to the reference plane SS in other words, the jumping up of the ear 21 in the Z direction is preferably 1 mm or less, 0.5 mm or less is more preferable.
  • the length of the perpendicular L2 drawn from the second major surface S2 of the support side base 24b to the reference surface SS is preferably 1 mm or less, more preferably 0.5 mm or less.
  • various marks such as numbers and symbols may be transferred to the ear portion 21 and the support portion 22.
  • the molded body sheet 10 is provided with a tracing function, and the molded body 20 can be easily recognized at the time of post-cutting. This improves fluidity and is useful for quality control.
  • a cut-out ruled line (not shown) may be transferred to the ear portion 21. This is effective when dividing into a plurality of compacts 30 with a cutter or the like during post-cutting.
  • the glass composition constituting the molded sheet 10 of the present embodiment for example, soda lime glass, aluminosilicate glass, aluminoborosilicate glass, lithium disilicate glass, lithium aluminosilicate glass, and the like can be used.
  • the composition is expressed in mol% on the basis of oxide, SiO 2 is 50 to 80%, Al 2 O 3 is 0.1 to 25%, Li 2 O + Na 2 O + K 2 O is 3 to A glass containing 30%, 0 to 25% MgO, 0 to 25% CaO and 0 to 5% ZrO 2 may be mentioned, but is not particularly limited. More specifically, the following glass compositions may be mentioned. For example, “containing 0 to 25% of MgO” means that MgO is not essential but may contain up to 25%.
  • the glass of (i) is contained in soda lime silicate glass, the glass of (ii) and (iii) is contained in aluminosilicate glass, and the glass of (v) is contained in lithium aluminosilicate glass.
  • the composition expressed in mol% on the basis of oxide is SiO 2 50-74%, Al 2 O 3 1-10%, Na 2 O 6-14%, K 2 O 3-11% , Li 2 O 0-5%, MgO 2-15%, CaO 0-6% and ZrO 2 0-5%, the total content of SiO 2 and Al 2 O 3 is 75% or less A glass having a total content of Na 2 O and K 2 O of 12 to 25% and a total content of MgO and CaO of 7 to 15%.
  • the composition expressed in mol% based on oxide is SiO 2 68-80%, Al 2 O 3 4-10%, Na 2 O 5-15%, K 2 O 0-1%.
  • composition expressed in mol% on the oxide basis is SiO 2 56 to 73%, Al 2 O 3 10 to 24%, B 2 O 3 0 to 6%, P 2 O 5 0 to 6%, Li 2 O 2-7%, Na 2 O 3-11%, K 2 O 0-5%, MgO 0-8%, CaO 0-2%, SrO 0-5% Glass containing 0-5% BaO, 0-5% ZnO, 0-2% TiO 2 and 0-4% ZrO 2 .
  • a coloring agent coloring component
  • Co 3 M 4 , MnO, MnO which are metal oxides of Co, Mn, Fe, Ni, Cu, Cr, V, Bi, Se, Ti, Ce, Er, and Nd that have absorption in the visible range 2 , Fe 2 O 3 , NiO, CuO, Cu 2 O, Cr 2 O 3 , V 2 O 5 , Bi 2 O 3 , SeO 2 , TiO 2 , CeO 2 , Er 2 O 3 , Nd 2 O 3 and the like.
  • the colored components When colored glass is used as the glass substrate, the colored components (Co, Mn, Fe, Ni, Cu, Cr, V, Bi, Se, Ti, Ce, You may contain at least 1 component selected from the group which consists of a metal oxide of Er and Nd in 7% or less of range. If the coloring component exceeds 7%, the glass tends to be devitrified. This content is preferably 5% or less, more preferably 3% or less, and even more preferably 1% or less.
  • the glass substrate may appropriately contain SO 3 , chloride, fluoride and the like as a fining agent at the time of melting.
  • a molding die 50 having a plurality of concave molding surfaces 51 having the same surface shape as the design shape of the molded body 20 on the upper surface is prepared.
  • the molding die 50 is fixed to a base 53, and a suction path 54 connected to a vacuum device (not shown) is provided between the molding die 50 and the base 53.
  • the molding surface 51 has a substantially U-shaped concave cross section with a wide width and a shallow depth, and the bottom surface 55 of the molding surface 51 and the top surface 56 of the molding die 50 are continuous by a side surface 57.
  • An exhaust hole 52 connected to the suction path 54 is opened on the side surface 57.
  • the side surface 57 may be a curved surface or a flat surface, and will be described as a curved surface here. When the side surface 57 is a curved surface, a molded body 20 having a molding surface with few defects can be obtained in the molding process described later.
  • the material of the mold 50 is preferably a carbon material, a glass material such as fused silica, or a ceramic material. This is useful for suppressing transfer marks from the mold 50.
  • the molding surface 51 is provided with a coating such as SiN, SiO 2 , SiC, Al 2 O 3 , Pt, Ir, W, Re, Ta, Rh, Ru, OS, C, Ta, Ti, Ni, and BN. May be. This coating contributes to an improvement in the releasability between the molded body sheet 10 and the mold 50.
  • the surface roughness of the molding surface 51 of the mold 50 is not particularly limited, but the arithmetic average surface roughness Ra is preferably 2.5 ⁇ m or less and the arithmetic average waviness Wa is preferably 1.6 ⁇ m or less. Thereby, in the molding process described later, even if the roughness of the molding surface 51 of the molding die 50 is transferred to the molded body 20, the molded body 20 having an excellent appearance can be obtained.
  • the arithmetic average surface roughness Ra of the molding surface 51 is more preferably 1 ⁇ m or less, and the arithmetic average waviness Wa is more preferably 0.4 ⁇ m or less.
  • Ra and Wa are values measured by the method defined in JIS B 0601 (2013).
  • the mold 50 is preheated to a temperature of 50 to 500 ° C. by the heater 60. Then, as shown in FIGS. 6A and 8, when the temperature of the glass substrate 40 is lower than the temperature of the mold 50, the glass substrate 40 is placed on the mold 50. After placing the glass substrate 40 on the mold 50, it is preferable that the portions that become the ear portion 21 and the support portion 22 of the molded body sheet 10 are constrained to the upper surface 56 of the mold 50 by the restraining tool 61.
  • the restraint 61 a jig provided with a clamp mechanism, a weight, or the like can be used. Further, the glass substrate 40 may be sandwiched between the forming die 50 and the restraining tool 61. Furthermore, when a vacuum forming method is employed, the mold 50 can be restrained by a vacuum. The fixing of the glass base material 40 by the restraint 61 effectively prevents the ear portion 21 and the support portion 22 from jumping up due to molding.
  • a glass material such as carbon or fused silica, or a metal on which an oxidation resistant film is formed is preferable.
  • the jig or the weight may be formed with unevenness for transferring a cut line at the time of post-cutting or product lot information.
  • the surface roughness of the restraint 61 is not particularly limited, but the arithmetic average surface roughness Ra is preferably 2.5 ⁇ m or less, the arithmetic average waviness Wa is preferably 1.6 ⁇ m or less, and the arithmetic average surface roughness Ra is 1.0 ⁇ m or less.
  • the arithmetic average waviness Wa is more preferably 0.4 ⁇ m or less.
  • the glass substrate 40 is heated up to the molding temperature (500 to 800 ° C.) by the heater 60 and softened, and then the glass substrate 40 is passed through the suction passage 54 and the exhaust hole 52. Air between the base material 40 and the mold 50 is exhausted by a vacuum device (not shown), and a negative pressure is set between the glass base material 40 and the mold 50.
  • the molding temperature 500 to 800 ° C.
  • the softened glass substrate 40 is gradually bent downward by gravity and a negative pressure supplied by a vacuum apparatus, and is molded following the molding surface 51.
  • the first mark 25 and the second mark 26 are formed on the glass substrate 40.
  • the first mark 25 is formed by the trace of the exhaust hole 52.
  • the temperature of the glass substrate 40 that was lower than the temperature of the mold 50 at the time of placement is reversed and higher than the temperature of the mold 50 at the end of molding. It becomes.
  • the glass substrate 40 can be rapidly heated by radiation or heat conduction from the mold 50. Thereafter, the glass substrate 40 is higher than the mold 50, and the maximum temperature difference between the glass substrate 40 and the mold 50 during molding in that state is preferably less than 100 ° C. Thereby, the mark transfer malfunction by the difference in the thermal expansion coefficient of the glass base material 40 and the shaping
  • the cooling step may include an annealing treatment step of removing the internal stress remaining in the molded body sheet 10 by holding at the annealing temperature for a predetermined time.
  • a glass substrate 40 is installed on a molding die 50 on which a molding surface 51 to be a female mold of the molded body 20 is formed, and a clamp mold is installed on the glass substrate 40 to form a glass substrate. Seal around 40. Thereafter, the glass substrate 40 is heated and softened, pressure is applied to the upper surface of the glass substrate 40 with compressed air, and a pressure difference is applied to the front and back surfaces of the glass substrate 40 for molding. .
  • the vacuum forming method and the pressure forming method may be performed in combination with each other.
  • the self-weight molding method After the glass substrate 40 is placed on a predetermined mold corresponding to the shape of the molded glass, the glass substrate 40 is heated and softened, and the glass substrate 40 is bent by gravity to be gold. This is a method of forming into a predetermined shape by fitting into a mold.
  • a glass substrate 40 is placed between predetermined molds (lower mold, upper mold) according to the shape of the molded glass, and the glass substrate 40 is softened, and the upper and lower molds are placed between them.
  • This is a method in which a press load is applied, the glass substrate 40 is bent and fitted into a mold, and formed into a predetermined shape.
  • a recess (not shown) provided in the molding die 50 can be used as a mark forming portion for forming the first mark 25 and the second mark 26.
  • a plurality (9 in the embodiment shown in the drawings) of the molded bodies 20 are arranged and arranged on the molded body sheet 10 formed by the procedure described in FIGS. ing.
  • the molded body sheet 10 is cut at a substantially central portion of the support portion 22 and divided into a plurality of portions.
  • FIG. 10 (b) it is cut along a rough cutting line CL connecting the second marks 26 to form a compact body piece 30 shown in FIG. 10 (c).
  • a plurality of cutting machines can be applied by cutting along the rough cutting line CL to form the compact 30, thereby improving productivity.
  • the second mark 26 is separated, but the first mark 25 remains at the corner of each compact 20.
  • the molded piece 20 is cut along the design line DL with reference to the positioning line connecting the first marks 25 and the molded body 20 shown in FIG. To do. Accordingly, the first mark 25 is also separated from the molded body 20. And the molded object 20 is finished by the grinding
  • the molded body sheet 10 has the first main surface S1 and the second main surface S2, and includes the molded body 20 and the outer edge of the molded body sheet 10. And an ear portion 21 connected to the peripheral portion of the molded body 20, and the peripheral portion of the molded body 20 has a side surface portion 23 including a molded body side surface portion 23 a and an ear portion side surface portion 23 b.
  • the molded body 20 is formed with a convex portion protruding from the second main surface S2 and a concave portion formed at a position corresponding to the convex portion of the first main surface S1, and the ear side surface portion 23b.
  • the first mark 25 is provided in the first. As a result, no hole marks are formed in the product portion of the molded body 20, and the first mark 25 is prevented from being deformed during cooling after molding, and the molded body 20 having the molded body side surface portion 23a is accurately backed. Can be cut and processed.
  • the first mark 25 is preferably formed on the second main surface S2 of the molded body sheet 10. This facilitates the use as an alignment mark for finishing at the time of post-cutting.
  • the first mark 25 is preferably formed so as to protrude from the second major surface S2. Thereby, the vacuum forming exhaust hole 52 can be used as a mark forming portion.
  • the arithmetic average surface roughness Ra2 of the second main surface S2 is preferably larger than the arithmetic average surface roughness Ra1 of the first main surface S1.
  • the arithmetic average surface roughness Ra2 ′ of the first mark 25 is preferably smaller than the arithmetic average surface roughness Ra2 of the second main surface S2. Thereby, the first mark 25 can be easily visually recognized at the time of rear cut, and the contrast when recognized by a camera such as an automatic positioning device is easily obtained.
  • the ear portion 21 has an ear-side base portion 24a around the ear-side side surface portion 23b, and the ear-side base portion 24a includes the second mark 26.
  • seat 10 can be divided
  • the second mark 26 is formed on the second main surface S2 of the molded sheet 10. Thereby, it can utilize easily as an alignment mark at the time of dividing the molded object sheet
  • the second main surface S2 of the ear portion side base portion 24a is defined as the reference surface SS
  • the second main surface S2 of the ear portion side base portion 24a Since the length of the perpendicular line L1 drawn from the reference surface SS to the reference surface SS is 1 mm or less, there is little backlash when the molded body sheet 10 is placed on a flat surface, and the molded body piece 30 can be processed in a stable state.
  • the molded object sheet 10 has the some molded object 20, it can shape
  • the convex part which protrudes from 2nd main surface S2 which comprises the molded object sheet 10 has the curved surface shape whose curvature radius is 0.1 mm or more and 10 mm or less, the molded object sheet 10 has the intensity
  • the length of the perpendicular L2 drawn from the second main surface S2 of the support portion 22 that connects the adjacent molded bodies 20 to the reference surface SS is preferably 1 mm or less.
  • the molded object piece 30 of this embodiment has 1st main surface S1 and 2nd main surface S2, and the molded object piece 30 is the ear
  • the molded body 20 is formed with a convex portion protruding from the second main surface S2 and a concave portion formed at a position corresponding to the convex portion of the first main surface S1, and the ear side surface portion 23b.
  • the 1st mark 25 is provided in the support part side surface part 23c.
  • a hole mark is not formed in the molded body 20, and the first mark 25 is prevented from being deformed during cooling after molding, and the molded body 20 having the molded body side surface portion 23a can be accurately cut back. Can be molded.
  • the first mark 25 is formed on the second main surface S2 of the compact piece 30, and the arithmetic average surface roughness Ra2 ′ of the first mark 25 is smaller than the arithmetic average surface roughness Ra2 of the second main surface S2. Therefore, the first mark 25 can be easily visually recognized at the time of post-cutting.
  • the reference surface SS when the surface formed including the boundary line between the ear-side base portion 24a and the ear-side side surface portion 23b or the support-portion-side side surface portion 23c in the second main surface S2 is defined as the reference surface SS, Since the length of the perpendicular L2 drawn from the second main surface S2 of the support portion 22 to the reference surface SS is 1 mm or less, the compact piece 30 can be stably placed without rattling.
  • the glass substrate 40 is placed on the lower mold 50 (placement step), and the glass substrate 40 has a shape that follows the lower mold 50.
  • the molded body 20 is molded (molding process), and the upper surface of the lower mold 50 in contact with the glass substrate 40 is provided with a molding surface 51 for providing the side surface portion 23 of the molded body 20 and the first mark 25 for alignment. Since the exhaust hole 52 (mark formation part) provided to the part side surface part 23b is provided, no hole mark is formed in the molded body 20, and the first mark 25 is prevented from being deformed during cooling after molding.
  • the molded body 20 having the molded body side surface portion 23a can be molded into a shape that can be accurately cut later.
  • the temperature of the glass substrate 40 at the start of molding is lower than the temperature of the lower mold 50, and the temperature is reversed at the end of molding so that the temperature of the glass substrate 40 is the temperature of the lower mold 50.
  • Higher is preferred.
  • the temperature difference between the glass substrate 40 and the lower mold 50 in a state where the temperature of the glass substrate 40 is higher than the temperature of the lower mold 50 is less than 100 ° C. This is effective for shortening the cooling time of the lower mold 50 in the second and subsequent moldings and for rapidly heating the glass substrate 40 during molding when molding is performed continuously.
  • die 50 and the glass base material 40 can be suppressed.
  • the mark forming portion may be a depression formed in the lower mold 50.
  • the mark can be easily formed by a press molding method.
  • the mark forming portion may be an exhaust hole 52 penetratingly formed from the molding surface 51 of the lower mold 50 to the suction path 54 of the lower mold 50.
  • the exhaust hole 52 is formed by a vacuum molding method. It can be used as a mark forming portion, and the lower mold 50 can be easily manufactured.
  • a differential pressure molding method such as a vacuum molding method or a pressure molding method.
  • the 1st mark 25 is formed in 2nd main surface S2 of the molded object sheet 10
  • the first mark 25 may be formed by providing a groove in the upper mold by press molding, or may be formed by supplying a negative pressure from the upper mold by vacuum molding. .
  • the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. can be made as appropriate. Moreover, the following processes and processes may be performed on the glass substrate 40 and the molded body 20 (hereinafter collectively referred to as a glass substrate or the like).
  • Grinding or polishing may be performed on at least one main surface of a glass substrate or the like.
  • Processing such as chamfering processing may be performed on the peripheral portion and the end surface of the glass substrate or the like. It is preferable to perform processing generally called R chamfering or C chamfering by mechanical grinding, but processing may be performed by etching or the like, and is not particularly limited. Moreover, you may implement a shaping
  • a glass substrate or the like forms a compressive stress layer on the surface by chemical strengthening, and the strength and scratch resistance are improved.
  • Chemical strengthening is performed by ion exchange at a temperature lower than the glass transition temperature to convert an alkali metal ion (typically, Na ion) having a small ionic radius on the glass surface to an alkali metal ion (typically, K ion) having a larger ionic radius.
  • alkali metal ion typically, Na ion
  • K ion alkali metal ion
  • This is a process of forming a compressive stress layer on the glass surface by exchanging with (ion).
  • the chemical strengthening treatment can be performed by a conventionally known method, and generally the glass is immersed in molten potassium nitrate.
  • This immersion is performed once or more, and may be performed twice or more under different molten salt conditions. You may mix and use about 10 mass% of potassium carbonate for this molten salt. Thereby, cracks and the like on the surface layer of the glass can be removed, and a high-strength glass can be obtained.
  • a silver component such as silver nitrate with potassium nitrate at the time of chemical strengthening, the glass is ion-exchanged to have silver ions on the surface and impart antibacterial properties.
  • ⁇ Chemical strengthening of a molded body sheet on which a plurality of molded bodies are formed may be followed by cutting to obtain a molded body.
  • Chemical strengthening may be performed by cutting the molded body from the molded body sheet. Thereby, it chemically strengthens to the end surface of a molded object, and a high intensity
  • Print process For example, spray printing, ink jet printing, or screen printing is used as the printing process. By these methods, even a glass substrate having a large area can be printed well.
  • spray printing it is easy to print on a glass substrate or the like having a bent portion, and the surface roughness of the printed surface is easy to adjust.
  • screen printing it is easy to form a desired printing pattern so that the average thickness is uniform on a glass substrate having a wide flat portion.
  • a plurality of inks may be used, but the same ink is preferable from the viewpoint of adhesion of the printed layer.
  • a molded body may be obtained by cutting in advance after printing on a molded body sheet on which a plurality of molded bodies are formed. As a result, it is possible to perform printing more efficiently than printing the compacts one by one.
  • the molded body may be cut out from the molded body sheet and printed. Thereby, the printed layer of a molded object becomes high quality, and the molded object excellent in the external appearance is obtained.
  • the ink forming the printing layer may be inorganic or organic.
  • the inorganic ink include one or more selected from SiO 2 , ZnO, B 2 O 3 , Bi 2 O 3 , Li 2 O, Na 2 O, and K 2 O, CuO, Al 2 O 3.
  • ZrO 2 , SnO 2 , and CeO 2 a composition comprising Fe 2 O 3 and TiO 2 may be used.
  • the organic ink various printing materials in which a resin is dissolved in a solvent can be used.
  • the resin includes acrylic resin, urethane resin, epoxy resin, polyester resin, polyamide resin, vinyl acetate resin, phenol resin, olefin, ethylene-vinyl acetate copolymer resin, polyvinyl acetal resin, natural rubber, styrene-butadiene copolymer At least one selected from the group consisting of resins such as coalescence, acrylonitrile-butadiene copolymer, polyester polyol, and polyether polyurethane polyether may be used.
  • the solvent water, alcohols, esters, ketones, aromatic hydrocarbon solvents, and aliphatic hydrocarbon solvents may be used.
  • isopropyl alcohol, methanol, ethanol or the like can be used as the alcohol
  • ethyl acetate can be used as the ester
  • methyl ethyl ketone can be used as the ketone.
  • aromatic hydrocarbon solvent toluene, xylene, Solvesso 100 or Solvesso 150 manufactured by ExxonMobil Inc. can be used, and hexane or the like can be used as the aliphatic hydrocarbon solvent.
  • the ink used for the printing layer may contain a colorant.
  • a colorant for example, when the printing layer is black, a black colorant such as carbon black can be used.
  • a colorant having an appropriate color can be used according to a desired color.
  • the surface treatment layer include an antiglare treatment layer, an antireflection treatment layer, and an antifouling treatment layer, and these may be used in combination.
  • the first main surface or the second main surface such as a glass substrate may be used. These are preferably formed after the molding step, but the antiglare treatment layer may be before the molding step.
  • the flat glass substrate may be formed after forming an antiglare treatment layer by etching or the like.
  • the anti-glare layer is a layer that mainly scatters reflected light and brings about an effect of reducing glare of reflected light due to reflection of a light source.
  • the antiglare layer may be formed by processing the surface of the glass substrate, or may be separately deposited.
  • As a method for forming an antiglare layer for example, at least part of a glass substrate is subjected to a surface treatment by a chemical (eg, etching) or physical (eg, sandblasting) method to form an uneven shape with a desired surface roughness. The method of forming can be used.
  • a concavo-convex structure may be formed on a plate by applying or spraying a treatment liquid on at least a part of a glass substrate or the like. Furthermore, you may form an uneven structure in at least one part of a glass base material etc. with a thermal method.
  • the anti-reflection treatment layer has the effect of reducing reflectivity and reduces glare caused by reflection of light, and when used in a display device, can improve the light transmittance from the display device. It is a layer that can improve the visibility of.
  • the antireflection treatment layer is an antireflection film, it is preferably formed on the first main surface or the second main surface of a glass substrate or the like, but there is no limitation.
  • the configuration of the antireflection film is not limited as long as reflection of light can be suppressed.
  • An antifouling treatment layer is a layer that suppresses the adhesion of organic and inorganic substances to the surface, or a layer that provides an effect that the adhering substances can be easily removed by cleaning such as wiping even when organic or inorganic substances adhere to the surface. That is.
  • the antifouling treatment layer is formed as an antifouling film, it is preferably formed on the first main surface and the second main surface of the glass substrate or other surface treatment layer.
  • the antifouling treatment layer is not limited as long as antifouling properties can be imparted to the obtained glass substrate. Among these, a fluorine-containing organic silicon compound film obtained by hydrolytic condensation reaction of a fluorine-containing organic silicon compound is preferable.
  • a formed body may be obtained by forming a surface treatment layer in advance on a formed body sheet on which a plurality of formed bodies are formed, and then cutting. Thereby, a surface treatment layer can be formed efficiently compared with forming the surface treatment layer one by one on a compact. You may cut out a molded object from a molded object sheet
  • molded body 20 of the present invention is not particularly limited. Specific examples include automotive components (headlight covers, side mirrors, front transparent substrates, side transparent substrates, rear transparent substrates, instrument panel surfaces, automotive display front plates, etc.), meters, architectural windows, and show windows.
  • automotive components headlight covers, side mirrors, front transparent substrates, side transparent substrates, rear transparent substrates, instrument panel surfaces, automotive display front plates, etc.
  • meters architectural windows, and show windows.
  • first alignment mark 26 first 2 Alignment mark 30
  • Molded body small piece 40 Glass substrate 50 Mold (lower mold) 51 Molding surface (surface shape) 52 Exhaust hole (mark forming part, hole) 56 Upper surface CL Rough cutting line DL Design line L1, L2 Vertical line Ra1 Arithmetic average surface roughness Ra2 of the first main surface Arithmetic average surface roughness Ra2 ′ of the second main surface Arithmetic average surface roughness S1 of the first mark Surface S2 Second main surface SS Reference surface

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  • Engineering & Computer Science (AREA)
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Abstract

A molded article sheet (10) having a first main surface (S1) and a second main surface (S2) comprises a molded article (20), and a lug section (21) which is an outer edge section of the molded article sheet (10) and is connected to the peripheral section of the molded article (20), wherein the molded article sheet (10) has, at the peripheral section of the molded article (20), a lateral surface section (23) including a molded article-side lateral surface section (23a) and a lug section-side lateral surface section (23b), the molded article (20) has a protruding section protruding from the second main surface (S2) and a recessed section formed in the first main surface (S1) at a position corresponding to said protruding section, and a first alignment mark (25) is provided on the lug section-side lateral surface section (23b). This configuration allows a molded article having a curved surface section to be subsequently cut and worked with high precision.

Description

成形体シート、成形体小片及び成形体シートの製造方法Molded body sheet, molded body piece and method for producing molded body sheet
　本発明は、成形体シート、成形体小片及び成形体シートの製造方法に関する。 The present invention relates to a molded body sheet, a molded body piece, and a method for manufacturing a molded body sheet.
　一般的に、少なくとも一部に曲面部を有する成形ガラスの製造は、成形型上に載置したガラス基材を軟化点まで加熱し、該ガラス基材を成形型に倣わせて変形させる成形工程を経て作製される。 In general, the production of a molded glass having a curved surface part at least in part is performed by heating a glass substrate placed on a mold to a softening point and deforming the glass substrate according to the mold. It is produced through.
　特許文献１には、上面に複数の成形凹部が形成された成形型を用いて、１枚のガラス製素材から複数の製品を成形する成形方法が記載されている。また、特許文献２には、炭化ケイ素等の材料により作製した成形型上に板ガラスを配置し、輻射ヒータで加熱して該板ガラスを所望の表面形状に成形する方法が開示されている。 Patent Document 1 describes a molding method in which a plurality of products are molded from a single glass material using a mold having a plurality of molding recesses formed on the upper surface. Patent Document 2 discloses a method in which a plate glass is placed on a mold made of a material such as silicon carbide, and heated by a radiation heater to form the plate glass into a desired surface shape.
日本国特許第５０４６０７５号公報Japanese Patent No. 5046075 日本国特許第５４７９４６８号公報Japanese Patent No. 5479468
　しかしながら、特許文献１、２によると、真空成形の際に成形型から空気を排気する通気孔が、製品面内に設けられているため、製品面内に孔跡が転写されてしまい、成形ガラスの品質が低下する問題がある。また、この孔跡を削除するための加工が必要となり、加工工数が増大する。 However, according to Patent Documents 1 and 2, since a vent hole for exhausting air from the mold during vacuum forming is provided in the product surface, the hole trace is transferred in the product surface, and the molded glass There is a problem that the quality of the. Moreover, the process for deleting this hole trace is needed, and a process man-hour increases.
　さらに、成形後のガラス製基材には、通常、成形ガラス（製品）を後切りする際に使用されるアライメントマークが設けられており、該マークは、平面部に設けられている。しかしながら、平面部は成形後の冷却時に変形しやすいため、上記の場合、該マークも変形してしまうことからアライメントマークとして利用し難く、改善の余地があった。 Furthermore, the glass substrate after molding is usually provided with an alignment mark that is used when the molded glass (product) is post-cut, and the mark is provided on the flat portion. However, since the flat portion is easily deformed at the time of cooling after molding, in the above case, the mark is also deformed, so that it is difficult to use it as an alignment mark, and there is room for improvement.
　本発明は、前述した課題に鑑みてなされたものであり、その目的は、曲面部を有する成形体を、精度よく後切り及び加工できる成形体シート、成形体小片及び成形体シートの製造方法を提供することにある。 The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a molded body sheet, a molded body small piece, and a molded body sheet manufacturing method that can accurately cut and process a molded body having a curved surface portion. It is to provide.
　本発明の上記目的は、下記の構成により達成される。
（１）　第１主面と第２主面とを有する成形体シートであって、
　前記成形体シートは、成形体と、前記成形体シートの外縁部であって前記成形体の周縁部に接続する耳部と、を備え、
　前記成形体の周縁部には、成形体側側面部と耳部側側面部とによる側面部を備え、
　前記成形体は、前記第２主面から突出する凸部と、前記第１主面のうち前記凸部に対応する位置に形成された凹部と、を備え、
　前記耳部側側面部に第１アライメントマークを有する、成形体シート。
（２）　前記第１アライメントマークは、前記成形体シートの前記第２主面に形成される、（１）に記載の成形体シート。
（３）　前記第１アライメントマークは、前記第２主面から突出して形成される、（１）または（２）に記載の成形体シート。
（４）　前記第２主面の算術平均面粗さＲａ２は、前記第１主面の算術平均面粗さＲａ１より大きい、（１）～（３）のいずれかに記載の成形体シート。
（５）　前記第１アライメントマークの算術平均面粗さＲａ２´は、前記第２主面の算術平均面粗さＲａ２より小さい、（１）～（４）のいずれかに記載の成形体シート。
（６）　前記第１アライメントマークは、前記成形体シートの前記第１主面に形成される、（１）に記載の成形体シート。
（７）　前記耳部は、前記耳部側側面部の周囲に耳部側基部を有し、
　前記耳部側基部には、第２アライメントマークを備える、（１）～（６）のいずれかに記載の成形体シート。
（８）　前記第２アライメントマークは、前記成形体シートの前記第２主面に形成される、（７）に記載の成形体シート。
（９）　前記耳部は、前記耳部側側面部の周囲に耳部側基部を有し、
　前記第２主面における前記耳部側基部と前記耳部側側面部との境界線を含んで形成される面を基準面としたとき、
　前記耳部側基部の前記第２主面の任意の点から前記基準面に引いた垂線の長さは、１ｍｍ以下である、（１）～（８）のいずれかに記載の成形体シート。
（１０）　前記成形体シートは、複数の前記成形体を有する、（１）～（９）のいずれかに記載の成形体シート。
（１１）　前記成形体を構成する、前記第２主面から突出する前記凸部は、曲率半径が０．１ｍｍ以上１０ｍｍ以下の曲面形状を有する（１０）に記載の成形体シート。
（１２）　隣接する前記成形体同士を接続する支持部を備え、
　前記成形体の周縁部には、成形体側側面部と、支持部側側面部と、による側面部をさらに備え、
　前記支持部は、前記支持部側側面部の周囲に支持部側基部を有し、
　前記第２主面における前記支持部側基部と前記支持部側側面部との境界線を含んで形成される面を基準面としたとき、
　前記支持部側基部の前記第２主面の任意の点から前記基準面に引いた垂線の長さは、１ｍｍ以下である、（１０）または（１１）に記載の成形体シート。
（１３）　第１主面と第２主面を有する成形体小片であって、
　前記成形体小片は、１つの成形体と、前記成形体の周縁部に接続する支持部と、を備え、
　前記成形体の周縁部には、成形体側側面部と、支持部側側面部と、による側面部を備え、
　前記成形体は、第２主面から突出する凸部と、第１主面のうち前記凸部に対応する位置に形成された凹部と、を備え、
　前記支持部側側面部に第１アライメントマークを有する、成形体小片。
（１４）　前記第１アライメントマークは、前記成形体小片の前記第２主面に形成され、
　前記第１アライメントマークの算術平均面粗さＲａ２´は、前記第２主面の算術平均面粗さＲａ２より小さい、（１３）に記載の成形体小片。
（１５）　前記支持部は、前記支持部側側面部の周囲に支持部側基部を有し、
　前記第２主面における前記支持部側基部と前記支持部側側面部との境界線を含んで形成される面を基準面としたとき、
　前記支持部側側面部の前記第２主面の任意の点から前記基準面に引いた垂線の長さは、１ｍｍ以下である、（１３）または（１４）に記載の成形体小片。
（１６）　成形体と、前記成形体の周縁部に接続する耳部と、を備え、前記成形体の周縁部に成形体側側面部と耳部側側面部とによる側面部を有する成形体シートをガラス基材から製造する製造方法であって、
　前記ガラス基材を下金型上に載置し、
　前記ガラス基材に前記下金型に倣った形状の前記成形体を成形し、
　前記下金型は、前記ガラス基材と接する上面を有し、
　前記上面は、前記成形体の前記側面部を付与する表面形状と、位置合わせ用の第１アライメントマークを前記耳部側側面部に付与するマーク形成部と、を備える、成形体シートの製造方法。
（１７）　前記成形体を成形する際、前記ガラス基材の温度が前記下金型の温度より高い状態において、その差が１００℃未満である、（１６）に記載の成形体シートの製造方法。
（１８）　前記マーク形成部は、前記下金型に形成された窪みである、（１６）または（１７）に記載の成形体シートの製造方法。
（１９）　前記マーク形成部は、前記下金型の前記上面から前記下金型の他の面に貫通形成された孔であり、前記成形体を成形する際、前記ガラス基材と接する前記下金型側の圧力が、前記ガラス基材の反対側の圧力より低い、（１６）～（１８）のいずれかに記載の成形体シートの製造方法。 The above object of the present invention can be achieved by the following constitution.
(1) A molded sheet having a first main surface and a second main surface,
The molded body sheet includes a molded body, and an ear portion that is an outer edge portion of the molded body sheet and is connected to a peripheral edge portion of the molded body.
The peripheral portion of the molded body includes a side surface portion by a molded body side surface portion and an ear portion side surface portion,
The molded body includes a convex portion protruding from the second main surface, and a concave portion formed at a position corresponding to the convex portion of the first main surface,
The molded object sheet which has a 1st alignment mark in the said ear | edge part side surface part.
(2) The molded body sheet according to (1), wherein the first alignment mark is formed on the second main surface of the molded body sheet.
(3) The molded sheet according to (1) or (2), wherein the first alignment mark is formed to protrude from the second main surface.
(4) The molded sheet according to any one of (1) to (3), wherein the arithmetic average surface roughness Ra2 of the second main surface is greater than the arithmetic average surface roughness Ra1 of the first main surface.
(5) The molded body sheet according to any one of (1) to (4), wherein the arithmetic average surface roughness Ra2 ′ of the first alignment mark is smaller than the arithmetic average surface roughness Ra2 of the second main surface.
(6) The molded body sheet according to (1), wherein the first alignment mark is formed on the first main surface of the molded body sheet.
(7) The ear portion has an ear portion side base portion around the ear portion side surface portion,
The molded sheet according to any one of (1) to (6), wherein the ear portion side base portion includes a second alignment mark.
(8) The molded body sheet according to (7), wherein the second alignment mark is formed on the second main surface of the molded body sheet.
(9) The ear portion has an ear portion side base portion around the ear portion side surface portion,
When a surface formed including a boundary line between the ear portion side base portion and the ear portion side surface portion in the second main surface is a reference surface,
The molded sheet according to any one of (1) to (8), wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the ear side base to the reference surface is 1 mm or less.
(10) The molded body sheet according to any one of (1) to (9), wherein the molded body sheet includes a plurality of the molded bodies.
(11) The molded body sheet according to (10), wherein the convex portion that constitutes the molded body and protrudes from the second main surface has a curved shape with a curvature radius of 0.1 mm to 10 mm.
(12) Provided with a support portion that connects the adjacent molded bodies,
The peripheral portion of the molded body further includes a side surface portion by a molded body side surface portion and a support portion side surface portion,
The support part has a support part side base around the support part side surface part,
When a surface formed including a boundary line between the support portion side base portion and the support portion side surface portion in the second main surface is a reference surface,
The length of a perpendicular drawn from the arbitrary point of the second main surface of the support side base to the reference surface is 1 mm or less, and the molded sheet according to (10) or (11).
(13) A compact piece having a first main surface and a second main surface,
The molded body piece includes one molded body and a support portion connected to the peripheral edge of the molded body,
The peripheral portion of the molded body includes a side surface portion by a molded body side surface portion and a support portion side surface portion,
The molded body includes a convex portion protruding from the second main surface, and a concave portion formed at a position corresponding to the convex portion of the first main surface,
A compact piece having a first alignment mark on the side surface portion on the support portion side.
(14) The first alignment mark is formed on the second main surface of the compact piece,
The arithmetic average surface roughness Ra2 ′ of the first alignment mark is a molded body piece according to (13), which is smaller than the arithmetic average surface roughness Ra2 of the second main surface.
(15) The support part has a support part side base around the support part side surface part,
When a surface formed including a boundary line between the support portion side base portion and the support portion side surface portion in the second main surface is a reference surface,
The shaped piece according to (13) or (14), wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the support portion side surface portion to the reference surface is 1 mm or less.
(16) A molded body sheet comprising a molded body and an ear portion connected to a peripheral edge portion of the molded body, and having a side surface portion including a molded body side surface portion and an ear portion side surface portion on the peripheral edge portion of the molded body. A manufacturing method for manufacturing from a glass substrate,
Place the glass substrate on the lower mold,
Molding the molded body shaped like the lower mold on the glass substrate,
The lower mold has an upper surface in contact with the glass substrate,
The said upper surface is provided with the surface shape which provides the said side part of the said molded object, and the mark formation part which provides the 1st alignment mark for alignment to the said ear | edge part side surface part, The manufacturing method of a molded object sheet | seat .
(17) The method for producing a molded body sheet according to (16), wherein when the molded body is molded, the difference is less than 100 ° C. in a state where the temperature of the glass substrate is higher than the temperature of the lower mold. .
(18) The said mark formation part is a manufacturing method of the molded object sheet | seat as described in (16) or (17) which is the hollow formed in the said lower metal mold | die.
(19) The mark forming portion is a hole penetratingly formed from the upper surface of the lower mold to the other surface of the lower mold, and when the molded body is molded, the lower portion in contact with the glass substrate The method for producing a molded sheet according to any one of (16) to (18), wherein the pressure on the mold side is lower than the pressure on the opposite side of the glass substrate.
　本発明の成形体シート及び成形体小片によれば、側面部のうち、成形体の外側となる耳部側側面部に第１アライメントマークを備えるので、成形体に孔跡が残らず、且つ、成形後の冷却時に第１アライメントマークが変形することが抑制され、成形体側側面部を有する成形体を精度よく後切り及び加工できる。 According to the molded body sheet and the molded body piece of the present invention, since the first alignment mark is provided on the ear side surface side surface which is the outer side of the molded body among the side surface portions, no hole marks remain in the molded body, and The first alignment mark is prevented from being deformed at the time of cooling after molding, and the molded body having the molded body side surface portion can be precisely cut and processed.
　また、本発明の成形体シートの製造方法によれば、成形体に側面部を付与する表面形状と、第１アライメントマークを耳部側側面部に付与するマーク形成部と、を備える上面を持った下金型上にガラス基材を載置し、ガラス基材を下金型に倣った形状の成形体に成形する。これにより、成形体に孔跡が残らず、且つ、成形後の冷却時に第１アライメントマークが変形することが抑制され、成形体側側面部を有する成形体を、精度よく後切りできる形状の成形体シートに成形できる。 In addition, according to the method for producing a molded body sheet of the present invention, the molded body sheet has an upper surface including a surface shape that imparts a side surface portion to the molded body and a mark forming portion that imparts the first alignment mark to the side surface portion on the ear portion side. A glass substrate is placed on the lower mold, and the glass substrate is molded into a molded body having a shape that follows the lower mold. As a result, there is no trace of holes in the molded body, and the first alignment mark is prevented from being deformed during cooling after molding, and the molded body having a shape that can accurately cut the molded body having the side surface portion on the molded body side. Can be formed into a sheet.
本発明の一実施形態に係る複数の成形体が形成された成形体シートの平面図である。It is a top view of the molded object sheet in which the some molded object which concerns on one Embodiment of this invention was formed. 図１に示す成形体シートの円ＩＩで囲む部分の拡大斜視図である。It is an expansion perspective view of the part enclosed with the circle | round | yen II of the molded object sheet | seat shown in FIG. 図２の平面図である。FIG. 3 is a plan view of FIG. 2. 図１のＩＶ－ＩＶ線断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 1. （ａ）は成形型を準備する工程、（ｂ）は成形型を予熱する工程を示す概略図である。(A) is the schematic which shows the process of preparing a shaping | molding die, (b) shows the process of preheating a shaping | molding die. （ａ）は予熱された成形型にガラス基材を載せて拘束治具によりガラス基材を固定する工程、（ｂ）はガラス基材を成形温度まで昇温させて成形体シートを成形する工程を示す概略図である。(A) is a step of placing a glass substrate on a preheated mold and fixing the glass substrate by a restraining jig, and (b) is a step of raising the temperature of the glass substrate to a molding temperature to form a molded body sheet. FIG. （ａ）は成形体シートを冷却する工程、（ｂ）は成形型から成形体シートを離型する工程を示す概略図である。(A) is the process which cools a molded object sheet, (b) is the schematic which shows the process of releasing a molded object sheet | seat from a shaping | molding die. 成形体を成形する際の金型及び成形体シートの温度と時間との関係を示すグラフである。It is a graph which shows the relationship between the time of the metal mold | die at the time of shape | molding a molded object, and a molded object sheet | seat, and time. 成形体シートの模式的な平面図である。It is a typical top view of a molded object sheet. （ａ）は成形体シートから個別に分割された成形体小片の模式的な平面図、（ｂ）は粗切りラインで切断する状態を示す模式的な平面図、（ｃ）は粗切りラインで切断された成形体小片の模式的な平面図、（ｄ）はデザインラインで切断された後、周縁部に加工が施された成形体（製品）の模式的な平面図である。(A) is a schematic plan view of a compact piece individually divided from the compact sheet, (b) is a schematic plan view showing a state of cutting along a rough cutting line, and (c) is a rough cutting line. FIG. 4D is a schematic plan view of a cut compact body piece, and FIG. 4D is a schematic plan view of a compact body (product) having a peripheral edge processed after being cut by a design line.
　以下、本発明の一実施形態に係る成形体シート、及び成形体小片を図面に基づいて詳細に説明する。 Hereinafter, a molded body sheet and a molded body piece according to an embodiment of the present invention will be described in detail based on the drawings.
　例えば、ディスプレーのカバーガラスなど、少なくとも一部に側面部を有する成形体は、ガラス基材の準備工程、防眩処理工程、成形工程、寸法調整工程、面取り工程、強化処理工程、印刷工程、反射防止層や指紋除去層などの機能層処理工程、などを経て製作される。なお、各工程の順序は、上記に限定されず、任意に設定可能である。また、成形体の側面部は、一般的に、成形工程において板状のガラス基材を所望の形状に成形することで形成される。以下、成形後のガラス基材を成形体シートと称す。 For example, a molded body having a side part at least in part, such as a cover glass of a display, is a glass substrate preparation process, an antiglare treatment process, a molding process, a dimension adjustment process, a chamfering process, a strengthening process, a printing process, and a reflection process. It is manufactured through functional layer processing steps such as a prevention layer and a fingerprint removal layer. In addition, the order of each process is not limited above, It can set arbitrarily. Moreover, the side part of a molded object is generally formed by shape | molding a plate-shaped glass base material in a desired shape in a formation process. Hereinafter, the glass substrate after molding is referred to as a molded body sheet.
　図１～図４に示すように、本実施形態の成形体シート１０は、略矩形形状を有し、ＸＹ方向に整列配置された複数の成形体２０と、成形体シート１０の外縁部であって成形体２０の周縁部に接続する部分である耳部２１及び隣接する成形体２０同士を接続する支持部２２と、を備える。
　なお、本実施形態では、成形体シート１０の一辺が延びる方向をＸ方向、該一辺に隣接して直交する他辺が延びる方向をＹ方向、Ｘ方向及びＹ方向に直交する方向をＺ方向とする。 As shown in FIGS. 1 to 4, the molded body sheet 10 of the present embodiment has a substantially rectangular shape, and includes a plurality of molded bodies 20 arranged in alignment in the XY direction, and an outer edge portion of the molded body sheet 10. And a support portion 22 for connecting the adjacent molded bodies 20 to each other.
In the present embodiment, the direction in which one side of the molded body sheet 10 extends is the X direction, the direction in which the other side perpendicular to the one side extends is the Y direction, and the direction orthogonal to the X direction and the Y direction is the Z direction. To do.
　成形体２０は、平面視において、各角部に円弧などの曲線形状を有する略矩形形状を有する。ここで、成形体２０とは、後述するデザインラインＤＬで切断され、その周縁部に研磨などの加工を施すことで製品となる部分のことである。また、本実施形態では、便宜上、成形体シート１０のうち、成形体となる切断前の部分も成形体２０と呼ぶ。 The molded body 20 has a substantially rectangular shape having a curved shape such as an arc at each corner in plan view. Here, the molded body 20 is a portion that becomes a product by being cut by a design line DL, which will be described later, and processing the periphery of the molded body. Moreover, in this embodiment, the part before the cutting | disconnection used as a molded object among the molded object sheets 10 is also called the molded object 20 for convenience.
　成形体シート１０は、成形体２０の周縁部に、Ｚ方向に向かって湾曲して形成された側面部２３を備える。即ち、側面部２３は、成形体側側面部２３ａ、耳部側側面部２３ｂ、及び支持部側側面部２３ｃと、を備える。 The molded body sheet 10 includes a side surface portion 23 formed by being curved toward the Z direction at the peripheral edge of the molded body 20. That is, the side surface portion 23 includes a molded body side surface portion 23a, an ear portion side surface portion 23b, and a support portion side surface portion 23c.
　また、成形体２０は、成形体側内面部２０ａ及び成形体側側面部２３ａを含む。耳部２１は、耳部側側面部２３ｂと、該耳部側側面部２３ｂの周囲で、成形体側内面部２０ａと高さが異なる耳部側基部２４ａとを備え、支持部２２は、支持部側側面部２３ｃと、該支持部側側面部２３ｃの周囲で、耳部側基部２４ａと高さが同じ支持部側基部２４ｂとを備える。ここで、耳部側基部２４ａおよび支持部側基部２４ｂは、平面でも曲面でも特に制限はない。 Further, the molded body 20 includes a molded body side inner surface portion 20a and a molded body side surface portion 23a. The ear portion 21 includes an ear portion side surface portion 23b and an ear portion side base portion 24a having a height different from that of the molded body inner surface portion 20a around the ear portion side surface portion 23b. A side surface portion 23c and a support portion side base portion 24b having the same height as the ear portion side base portion 24a are provided around the support portion side surface portion 23c. Here, the ear portion side base portion 24a and the support portion side base portion 24b are not particularly limited in a plane or a curved surface.
　つまり、成形体シート上の成形体２０は、成形体２０の周縁部が耳部２１と支持部２２によって囲まれるものと、支持部２２のみによって囲まれるものとが存在する。
　なお、成形体シート１０に１つの成形体２０が形成される場合には、成形体２０の周縁部は全て耳部２１によって囲まれることになる。 That is, the molded body 20 on the molded body sheet includes one in which the peripheral portion of the molded body 20 is surrounded by the ear portion 21 and the support portion 22 and one that is surrounded only by the support portion 22.
In addition, when the one molded object 20 is formed in the molded object sheet | seat 10, all the peripheral parts of the molded object 20 are enclosed by the ear | edge part 21. FIG.
　成形体２０の凸部は、成型工程において後述する成形型５０の成形面５１（図５参照）に接触する成形体シート１０（成形体小片３０）の第２主面Ｓ２に形成され、成形体２０の凹部は、第２主面Ｓ２と反対側の成形体シート１０（成形体小片３０）の第１主面Ｓ１に形成される。凸部は曲率半径が０．１ｍｍ以上１０ｍｍ以下の曲面形状を有することが好ましく、０．２ｍｍ以上５．０ｍｍ以下がより好ましく、０．５ｍｍ以上３．０ｍｍ以下がさらに好ましい。これは強度を保ちながら美観や触感を向上するためである。例えば、凸部の曲率半径が０．１ｍｍ未満の場合には、衝突時に凸部に応力が集中しやすくなり、強度の低下をまねく可能性がある。一方、凸部の曲率半径が１０ｍｍより大きい場合には、凸部のメリハリがなくなり美観が損なわれ、かつ手で触れたときの接触面積が増えて指すべり性が低下するため、触感が損なわれる。 The convex portion of the molded body 20 is formed on the second main surface S2 of the molded body sheet 10 (molded body small piece 30) that comes into contact with a molding surface 51 (see FIG. 5) of the molding die 50 described later in the molding process. The concave portion 20 is formed on the first main surface S1 of the molded body sheet 10 (molded body small piece 30) opposite to the second main surface S2. The convex portion preferably has a curved shape with a radius of curvature of 0.1 mm to 10 mm, more preferably 0.2 mm to 5.0 mm, and still more preferably 0.5 mm to 3.0 mm. This is to improve aesthetics and tactile sensation while maintaining strength. For example, when the curvature radius of the convex portion is less than 0.1 mm, stress tends to concentrate on the convex portion at the time of collision, which may cause a decrease in strength. On the other hand, when the curvature radius of the convex part is larger than 10 mm, the convex part is not sharp and the aesthetic appearance is impaired, and the contact area when touched by the hand is increased and the sliding property is lowered, so that the touch feeling is impaired. .
　第２主面Ｓ２の算術平均面粗さＲａ２は、第１主面Ｓ１の算術平均面粗さＲａ１より大きくなっている（Ｒａ２＞Ｒａ１）。
　第１主面Ｓ１の算術平均面粗さＲａ１は１μｍ以下、表面うねりＷａは１μｍ以下が好ましく、さらにＲａ１は０.１μｍ以下、Ｗａは０.１μｍ以下がより好ましい。 The arithmetic average surface roughness Ra2 of the second main surface S2 is larger than the arithmetic average surface roughness Ra1 of the first main surface S1 (Ra2> Ra1).
The arithmetic mean surface roughness Ra1 of the first main surface S1 is preferably 1 μm or less, the surface waviness Wa is preferably 1 μm or less, Ra1 is preferably 0.1 μm or less, and Wa is more preferably 0.1 μm or less.
　また、成形体シート１０は、成形体シート１０から成形体２０を切断する際に仕上げ加工用のアライメントマークとして利用可能な第１アライメントマーク２５（以下、「第１マーク２５）とも称す。）と、成形体２０に切断する前に粗切りの際、粗切り用アライメントマークとして利用可能な第２アライメントマーク２６（以下、「第２マーク２６）とも称す。）と、を有する。第１マーク２５及び第２マーク２６は、いずれも成形体２０毎に設けられており、本実施形態では、成形体２０の湾曲した各角部（４か所）、且つ、成形体２０より外側となる位置で、第２の主面Ｓ２側に突出して設けられている。 The molded body sheet 10 is also referred to as a first alignment mark 25 (hereinafter also referred to as “first mark 25”) that can be used as an alignment mark for finishing when the molded body 20 is cut from the molded body sheet 10. The first mark 25 includes a second alignment mark 26 (hereinafter also referred to as “second mark 26”) that can be used as a rough cutting alignment mark during rough cutting before cutting into the molded body 20. The second mark 26 is provided for each molded body 20, and in the present embodiment, the corners (four locations) of the molded body 20 are curved and at positions outside the molded body 20. The second main surface S2 is provided so as to protrude.
　具体的に、各第１マーク２５は、耳部側側面部２３ｂ及び支持部側側面部２３ｃにおいて、成形体２０（デザインラインＤＬ）の湾曲した各角部の外側で、後述する２本の粗切りラインＣＬの内側となる領域Ｚ（図３の斜線領域）内に形成されている。この領域Ｚは、粗切りラインＣＬで切断した段階において、デザインラインＤＬからの距離を長く確保できる側面部２３ｂ、２３ｃであり、第１マーク２５の直径寸法を確保しやすい。 Specifically, each of the first marks 25 has two rough edges, which will be described later, outside the curved corners of the molded body 20 (design line DL) in the ear side surface 23b and the support side surface 23c. It is formed in a region Z (shaded region in FIG. 3) that is inside the cutting line CL. This region Z is the side portions 23b and 23c that can ensure a long distance from the design line DL at the stage of cutting with the rough cutting line CL, and it is easy to ensure the diameter dimension of the first mark 25.
　また、各第２マーク２６は、耳部側基部２４ａ及び支持部側基部２４ｂにおいて、略Ｌ字型に形成された凸条であり、対向する一対の第２マーク２６同士を接続する直線が、成形体シート１０を成形体小片３０に分割する粗切りラインＣＬと一致するように形成されている。
　なお、デザインラインＤＬ及び粗切りラインＣＬは、いずれも成形体シート１０上に実在するラインではないが、目印などのために型跡転写などにより薄いラインを形成してもよい。 Each of the second marks 26 is a protrusion formed in a substantially L shape in the ear portion side base portion 24a and the support portion side base portion 24b, and a straight line connecting a pair of opposing second marks 26 is The molded body sheet 10 is formed so as to coincide with a rough cutting line CL for dividing the molded body sheet 10 into the molded body small pieces 30.
Note that the design line DL and the rough cutting line CL are not actual lines on the molded body sheet 10, but a thin line may be formed by a mold trace transfer or the like for a mark or the like.
　また、第１マーク２５は、カメラなどで投影したときにアライメントマークとして認識できればよく、成形体２０の外側１０ｍｍ以内に形成されている。
　第１マーク２５の算術平均面粗さＲａ２´は、第２主面Ｓ２の算術平均面粗さＲａ２より小さくなっている。
　第１マーク２５の形状は特に制限はなく、円、楕円、多角形など任意の形状とできる。 Moreover, the 1st mark 25 should just be recognized as an alignment mark when it projects with a camera etc., and is formed within 10 mm of the outer side of the molded object 20. FIG.
The arithmetic average surface roughness Ra2 ′ of the first mark 25 is smaller than the arithmetic average surface roughness Ra2 of the second main surface S2.
The shape of the first mark 25 is not particularly limited, and can be any shape such as a circle, an ellipse, or a polygon.
　なお、図２及び図３に示す第１マーク２５は、真空成形における成形型５０の排気孔５２（図５参照）をマーク形成部として利用することで、第２主面Ｓ２側に円柱状に突出して形成されている。この場合、第１マーク２５の直径は、５ｍｍ以下が好ましく、 直径２ｍｍ以下がより好ましい。
　これは、排気孔５２の直径を５ｍｍ以下とすることで、真空成形時に排気速度を上げて短時間で成形できると共に、排気孔５２の成形体シート１０への転写量を低減できると共に、排気孔５２の面取りなどの仕上げ加工を低減できる。 The first mark 25 shown in FIGS. 2 and 3 is formed in a columnar shape on the second main surface S2 side by using the exhaust hole 52 (see FIG. 5) of the forming die 50 in vacuum forming as a mark forming portion. Protrusively formed. In this case, the diameter of the first mark 25 is preferably 5 mm or less, and more preferably 2 mm or less.
This is because when the diameter of the exhaust holes 52 is 5 mm or less, the exhaust speed can be increased during vacuum forming to form the exhaust holes 52 in a short time, and the transfer amount of the exhaust holes 52 to the molded body sheet 10 can be reduced. Finishing such as chamfering 52 can be reduced.
　また、第２マーク２６の幅Ｃは、１０ｍｍ以下が好ましく、より好ましくは１ｍｍ以下である。これは、第２マーク２６の平坦性を保つのに効果的である。なお、第２マーク２６は、第２主面Ｓ２に形成されたＬ字型溝とすることもできる。 The width C of the second mark 26 is preferably 10 mm or less, more preferably 1 mm or less. This is effective for maintaining the flatness of the second mark 26. The second mark 26 may be an L-shaped groove formed on the second main surface S2.
　なお、第２マーク２６は、成形体２０の外側に少なくとも１つ形成され、より精度を出すために２個以上あることが好ましい。 これにより、Ｚ方向の位置決め後に、耳部側基部２４ａ又は支持部側基部２４ｂの２点が決まれば、成形体シート１０の位置を決定できる。また、第１マーク２５と第２マーク２６とは、つながったマークとして形成されてもよい。  In addition, it is preferable that at least one second mark 26 is formed on the outside of the molded body 20 and there are two or more second marks 26 in order to obtain higher accuracy. Thereby, after the positioning in the Z direction, if the two points of the ear portion side base portion 24a or the support portion side base portion 24b are determined, the position of the molded body sheet 10 can be determined. Further, the first mark 25 and the second mark 26 may be formed as a connected mark.
　図１に戻り、横方向（Ｘ方向）に隣接する成形体２０同士を接続する支持部２２の幅Ｗ１と、縦方向（Ｙ方向）に隣接する成形体２０同士を接続する支持部２２の幅Ｗ２とは、同じであっても、異なってもよい。ただし、成形体シート搬送用のホイール（図示せず）が挿入可能な幅として、幅Ｗ１、Ｗ２は、２０ｍｍ以上が好ましく、１枚の成形体シート１０から得られる成形体２０の歩留まりを考慮して決定される。 Returning to FIG. 1, the width W <b> 1 of the support part 22 that connects the compacts 20 adjacent in the horizontal direction (X direction) and the width of the support part 22 that connects the compacts 20 adjacent in the vertical direction (Y direction). W2 may be the same or different. However, the widths W1 and W2 are preferably 20 mm or more as the width into which a molded sheet conveying wheel (not shown) can be inserted, taking into account the yield of the molded body 20 obtained from one molded body sheet 10. Determined.
　また、図４を参照して、第２主面Ｓ２（凸部側）における耳部側基部２４ａと、耳部側側面部２３ｂとの境界線を含んで形成される面を基準面ＳＳとしたとき、耳部側基部２４ａの第２主面Ｓ２の任意の点から基準面ＳＳに引いた垂線Ｌ１の長さ、換言すれば、耳部２１のＺ方向への跳ね上がりは、１ｍｍ以下が好ましく、０．５ｍｍ以下がより好ましい。これにより、成形体シート１０を平面上に置いたとき、ガタツキが小さく、Ｚ方向の位置決め精度が向上して、後切り加工が容易となる。また、同様の理由により、支持部側基部２４ｂの第２主面Ｓ２から基準面ＳＳに引いた垂線Ｌ２の長さは、１ｍｍ以下、より好ましくは０．５ｍｍ以下とするのがよい。 In addition, referring to FIG. 4, a surface formed including the boundary line between the ear portion side base portion 24a and the ear portion side surface portion 23b in the second main surface S2 (convex portion side) is defined as a reference surface SS. When the length of the perpendicular L1 drawn from the arbitrary point of the second main surface S2 of the ear side base 24a to the reference plane SS, in other words, the jumping up of the ear 21 in the Z direction is preferably 1 mm or less, 0.5 mm or less is more preferable. Thereby, when the molded object sheet | seat 10 is set | placed on a plane, backlash is small, the positioning precision of a Z direction improves, and a post-cut process becomes easy. For the same reason, the length of the perpendicular L2 drawn from the second major surface S2 of the support side base 24b to the reference surface SS is preferably 1 mm or less, more preferably 0.5 mm or less.
　また、耳部２１および支持部２２には、番号や記号などの種々のマークが転写されていてもよい。これにより、成形体シート１０にトレース機能を持たせられ、後切りでの成形体２０の認識が容易となり、流動性が向上すると共に品質管理に有用である。
　また、耳部２１には、切り取り用の罫書き線（図示せず）が転写されていてもよい。これは、後切り時にカッターなどで複数の成形体小片３０に分割する際に有効である。  Further, various marks such as numbers and symbols may be transferred to the ear portion 21 and the support portion 22. Thereby, the molded body sheet 10 is provided with a tracing function, and the molded body 20 can be easily recognized at the time of post-cutting. This improves fluidity and is useful for quality control.
Further, a cut-out ruled line (not shown) may be transferred to the ear portion 21. This is effective when dividing into a plurality of compacts 30 with a cutter or the like during post-cutting.
　本実施形態の成形体シート１０を構成するガラス組成としては、例えば、ソーダライムガラス、アルミノシリケートガラス、アルミノボロシリケートガラス、リチウムダイシリケートガラス、リチウムアルミノシリケートガラスなどが使用できる。 As the glass composition constituting the molded sheet 10 of the present embodiment, for example, soda lime glass, aluminosilicate glass, aluminoborosilicate glass, lithium disilicate glass, lithium aluminosilicate glass, and the like can be used.
　ガラス組成の具体例としては、酸化物基準のモル％で表示した組成で、ＳｉＯ2を５０～８０％、Ａｌ2Ｏ3を０．１～２５％、Ｌｉ2Ｏ＋Ｎａ2Ｏ＋Ｋ2Ｏを３～３０％、ＭｇＯを０～２５％、ＣａＯを０～２５％およびＺｒＯ2を０～５％含むガラスが挙げられるが、特に限定されない。より具体的には、以下のガラスの組成が挙げられる。なお、例えば、「ＭｇＯを０～２５％含む」とは、ＭｇＯは必須ではないが２５％まで含んでもよい、の意である。（ｉ）のガラスはソーダライムシリケートガラスに含まれ、（ｉｉ）および（ｉｉｉ）のガラスはアルミノシリケートガラスに含まれ、（ｖ）のガラスはリチウムアルミノシリケートガラスに含まれる。
（ｉ）酸化物基準のモル％で表示した組成で、ＳｉＯ2を６３～７３％、Ａｌ2Ｏ3を０．１～５．２％、Ｎａ2Ｏを１０～１６％、Ｋ2Ｏを０～１．５％、Ｌｉ2Ｏを０～５％、ＭｇＯを５～１３％及びＣａＯを４～１０％を含むガラス。
（ｉｉ）酸化物基準のモル％で表示した組成が、ＳｉＯ2を５０～７４％、Ａｌ2Ｏ3を１～１０％、Ｎａ2Ｏを６～１４％、Ｋ2Ｏを３～１１％、Ｌｉ2Ｏを０～５％、ＭｇＯを２～１５％、ＣａＯを０～６％およびＺｒＯ2を０～５％含有し、ＳｉＯ2およびＡｌ2Ｏ3の含有量の合計が７５％以下、Ｎａ2ＯおよびＫ2Ｏの含有量の合計が１２～２５％、ＭｇＯおよびＣａＯの含有量の合計が７～１５％であるガラス。
（ｉｉｉ）酸化物基準のモル％で表示した組成が、ＳｉＯ2を６８～８０％、Ａｌ2Ｏ3を４～１０％、Ｎａ2Ｏを５～１５％、Ｋ2Ｏを０～１％、Ｌｉ2Ｏを０～５％、ＭｇＯを４～１５％およびＺｒＯ2を０～１％含有するガラス。
（ｉｖ）酸化物基準のモル％で表示した組成が、ＳｉＯ2を６７～７５％、Ａｌ2Ｏ3を０～４％、Ｎａ2Ｏを７～１５％、Ｋ2Ｏを１～９％、Ｌｉ2Ｏを０～５％、ＭｇＯを６～１４％およびＺｒＯ2を０～１．５％含有し、ＳｉＯ2およびＡｌ2Ｏ3の含有量の合計が７１～７５％、Ｎａ2ＯおよびＫ2Ｏの含有量の合計が１２～２０％であり、ＣａＯを含有する場合その含有量が１％未満であるガラス。
（ｖ）酸化物基準のモル％で表示した組成が、ＳｉＯ2を５６～７３％、Ａｌ2Ｏ3を１０～２４％、Ｂ2Ｏ3を０～６％、Ｐ2Ｏ5を０～６％、Ｌｉ2Ｏを２～７％、Ｎａ2Ｏを３～１１％、Ｋ2Ｏを０～５％、ＭｇＯを０～８％、ＣａＯを０～２％、ＳｒＯを０～５％、ＢａＯを０～５％、ＺｎＯを０～５％、ＴｉＯ2を０～２％、ＺｒＯ2を０～４％含有するガラス。 As a specific example of the glass composition, the composition is expressed in mol% on the basis of oxide, SiO 2 is 50 to 80%, Al 2 O 3 is 0.1 to 25%, Li 2 O + Na 2 O + K 2 O is 3 to A glass containing 30%, 0 to 25% MgO, 0 to 25% CaO and 0 to 5% ZrO 2 may be mentioned, but is not particularly limited. More specifically, the following glass compositions may be mentioned. For example, “containing 0 to 25% of MgO” means that MgO is not essential but may contain up to 25%. The glass of (i) is contained in soda lime silicate glass, the glass of (ii) and (iii) is contained in aluminosilicate glass, and the glass of (v) is contained in lithium aluminosilicate glass.
(I) Composition expressed in mol% based on oxide, with SiO 2 63-73%, Al 2 O 3 0.1-5.2%, Na 2 O 10-16%, K 2 O Glass containing 0 to 1.5%, Li 2 O 0 to 5%, MgO 5 to 13% and CaO 4 to 10%.
(Ii) The composition expressed in mol% on the basis of oxide is SiO 2 50-74%, Al 2 O 3 1-10%, Na 2 O 6-14%, K 2 O 3-11% , Li 2 O 0-5%, MgO 2-15%, CaO 0-6% and ZrO 2 0-5%, the total content of SiO 2 and Al 2 O 3 is 75% or less A glass having a total content of Na 2 O and K 2 O of 12 to 25% and a total content of MgO and CaO of 7 to 15%.
(Iii) The composition expressed in mol% based on oxide is SiO 2 68-80%, Al 2 O 3 4-10%, Na 2 O 5-15%, K 2 O 0-1%. Glass containing 0 to 5% Li 2 O, 4 to 15% MgO and 0 to 1% ZrO 2 .
(Iv) The composition expressed in mol% on the oxide basis is SiO 2 67-75%, Al 2 O 3 0-4%, Na 2 O 7-15%, K 2 O 1-9% , Li 2 O 0-5%, MgO 6-14% and ZrO 2 0-1.5%, the total content of SiO 2 and Al 2 O 3 is 71-75%, Na 2 O And a glass in which the total content of K 2 O is 12 to 20%, and when CaO is contained, the content is less than 1%.
(V) The composition expressed in mol% on the oxide basis is SiO 2 56 to 73%, Al 2 O 3 10 to 24%, B 2 O 3 0 to 6%, P 2 O 5 0 to 6%, Li 2 O 2-7%, Na 2 O 3-11%, K 2 O 0-5%, MgO 0-8%, CaO 0-2%, SrO 0-5% Glass containing 0-5% BaO, 0-5% ZnO, 0-2% TiO 2 and 0-4% ZrO 2 .
　さらに、ガラスに着色を行い使用する際は、所望の化学強化特性の達成を阻害しない範囲において着色剤（着色成分）を添加してもよい。例えば、可視域に吸収を持つ、Ｃｏ、Ｍｎ、Ｆｅ、Ｎｉ、Ｃｕ、Ｃｒ、Ｖ、Ｂｉ、Ｓｅ、Ｔｉ、Ｃｅ、Ｅｒ、およびＮｄの金属酸化物である、Ｃｏ３Ｏ４、ＭｎＯ、ＭｎＯ２、Ｆｅ２Ｏ３、ＮｉＯ、ＣｕＯ、Ｃｕ２Ｏ、Ｃｒ２Ｏ３、Ｖ２Ｏ５、Ｂｉ２Ｏ３、ＳｅＯ２、ＴｉＯ２、ＣｅＯ２、Ｅｒ２Ｏ３、Ｎｄ２Ｏ３等が挙げられる。 Furthermore, when coloring and using glass, you may add a coloring agent (coloring component) in the range which does not inhibit achievement of a desired chemical strengthening characteristic. For example, Co 3 M 4 , MnO, MnO, which are metal oxides of Co, Mn, Fe, Ni, Cu, Cr, V, Bi, Se, Ti, Ce, Er, and Nd that have absorption in the visible range 2 , Fe 2 O 3 , NiO, CuO, Cu 2 O, Cr 2 O 3 , V 2 O 5 , Bi 2 O 3 , SeO 2 , TiO 2 , CeO 2 , Er 2 O 3 , Nd 2 O 3 and the like. Can be mentioned.
　また、ガラス基材として着色ガラスを用いる場合、ガラス中に、酸化物基準のモル百分率表示で、着色成分（Ｃｏ、Ｍｎ、Ｆｅ、Ｎｉ、Ｃｕ、Ｃｒ、Ｖ、Ｂｉ、Ｓｅ、Ｔｉ、Ｃｅ、Ｅｒ、およびＮｄの金属酸化物からなる群より選択される少なくとも１成分）を７％以下の範囲で含有してもよい。着色成分が７％を超えると、ガラスが失透しやすくなる。この含量は５％以下が好ましく、３％以下がより好ましく、１％以下がさらに好ましい。また、ガラス基材は、溶融の際の清澄剤として、ＳＯ３、塩化物、フッ化物などを適宜含有してもよい。 When colored glass is used as the glass substrate, the colored components (Co, Mn, Fe, Ni, Cu, Cr, V, Bi, Se, Ti, Ce, You may contain at least 1 component selected from the group which consists of a metal oxide of Er and Nd in 7% or less of range. If the coloring component exceeds 7%, the glass tends to be devitrified. This content is preferably 5% or less, more preferably 3% or less, and even more preferably 1% or less. In addition, the glass substrate may appropriately contain SO 3 , chloride, fluoride and the like as a fining agent at the time of melting.
　次に、図５～図８を参照して、少なくとも１つの成形体２０を有する成形体シート１０の製造方法について説明する。 Next, with reference to FIG. 5 to FIG. 8, a method for producing the molded body sheet 10 having at least one molded body 20 will be described.
　図５（ａ）に示すように、上面に成形体２０のデザイン形状と同じ表面形状を有する複数の凹状の成形面５１が設けられた成形型５０を準備する。成形型５０は、基台５３に固定されており、成形型５０と基台５３との間には、不図示の真空装置に接続される吸引路５４が設けられている。 As shown in FIG. 5 (a), a molding die 50 having a plurality of concave molding surfaces 51 having the same surface shape as the design shape of the molded body 20 on the upper surface is prepared. The molding die 50 is fixed to a base 53, and a suction path 54 connected to a vacuum device (not shown) is provided between the molding die 50 and the base 53.
　成形面５１は、幅が広く、深さが浅い略Ｕ字型の凹状断面を有し、成形面５１の底面５５と成形型５０の上面５６とは、側面５７によって連続している。側面５７には、吸引路５４に接続する排気孔５２が開口している。側面５７は曲面でも平面でも構わず、ここでは曲面として説明する。側面５７が曲面であると、後述する成形工程において、残留ガスを除去しやすく、欠点の少ない成形面を有する成形体２０が得られる。 The molding surface 51 has a substantially U-shaped concave cross section with a wide width and a shallow depth, and the bottom surface 55 of the molding surface 51 and the top surface 56 of the molding die 50 are continuous by a side surface 57. An exhaust hole 52 connected to the suction path 54 is opened on the side surface 57. The side surface 57 may be a curved surface or a flat surface, and will be described as a curved surface here. When the side surface 57 is a curved surface, a molded body 20 having a molding surface with few defects can be obtained in the molding process described later.
　成形型５０の材料としては、炭素材、フューズドシリカなどのガラス材料、またはセラミック材料が好ましい。これは、成形型５０からの転写痕を抑制するのに有用である。また、成形面５１には、ＳｉＮ，ＳｉＯ２，ＳｉＣ，Ａｌ２Ｏ３，Ｐｔ，Ｉｒ，Ｗ，Ｒｅ，Ｔａ，Ｒｈ，Ｒｕ，ＯＳ，Ｃ，Ｔａ，Ｔｉ，Ｎｉ，ＢＮなどの被膜を設けてもよい。この被膜は、成形体シート１０と成形型５０との離形性向上に寄与する。 The material of the mold 50 is preferably a carbon material, a glass material such as fused silica, or a ceramic material. This is useful for suppressing transfer marks from the mold 50. The molding surface 51 is provided with a coating such as SiN, SiO 2 , SiC, Al 2 O 3 , Pt, Ir, W, Re, Ta, Rh, Ru, OS, C, Ta, Ti, Ni, and BN. May be. This coating contributes to an improvement in the releasability between the molded body sheet 10 and the mold 50.
　成形型５０の成形面５１の表面粗さは特に制限はないが、算術平均面粗さＲａは２．５μｍ以下、算術平均うねりＷａは１．６μｍ以下が好ましい。これにより後述する成形工程において、成形体２０に成形型５０の成形面５１の粗さが転写されても外観に優れた成形体２０が得られる。成形面５１の算術平均面粗さＲａは１μｍ以下、算術平均うねりＷａは０．４μｍ以下がより好ましい。なお、Ｒａ，ＷａはＪＩＳ　Ｂ　０６０１（２０１３）に規定される方法で測定した値である。 The surface roughness of the molding surface 51 of the mold 50 is not particularly limited, but the arithmetic average surface roughness Ra is preferably 2.5 μm or less and the arithmetic average waviness Wa is preferably 1.6 μm or less. Thereby, in the molding process described later, even if the roughness of the molding surface 51 of the molding die 50 is transferred to the molded body 20, the molded body 20 having an excellent appearance can be obtained. The arithmetic average surface roughness Ra of the molding surface 51 is more preferably 1 μm or less, and the arithmetic average waviness Wa is more preferably 0.4 μm or less. Ra and Wa are values measured by the method defined in JIS B 0601 (2013).
　次いで、図５（ｂ）に示すように、ヒータ６０により成形型５０を５０～５００℃の温度まで予熱する。そして、図６（ａ）及び図８に示すように、ガラス基材４０の温度が、成形型５０の温度より低い状態のとき、成形型５０上にガラス基材４０を載置する。ガラス基材４０を成形型５０上に載置した後、成形体シート１０の耳部２１及び支持部２２となる部分は、拘束具６１により成形型５０の上面５６に拘束することが好ましい。 Next, as shown in FIG. 5 (b), the mold 50 is preheated to a temperature of 50 to 500 ° C. by the heater 60. Then, as shown in FIGS. 6A and 8, when the temperature of the glass substrate 40 is lower than the temperature of the mold 50, the glass substrate 40 is placed on the mold 50. After placing the glass substrate 40 on the mold 50, it is preferable that the portions that become the ear portion 21 and the support portion 22 of the molded body sheet 10 are constrained to the upper surface 56 of the mold 50 by the restraining tool 61.
　拘束具６１としては、クランプ機構を備える治具や、おもりなどを利用できる。また、成形型５０と拘束具６１とで、ガラス基材４０を挟持してもよい。さらに、真空成形法が採用される場合には、真空により成形型５０に拘束できる。この拘束具６１によるガラス基材４０の固定は、成形による耳部２１及び支持部２２の跳ね上がりを有効に防止する。 As the restraint 61, a jig provided with a clamp mechanism, a weight, or the like can be used. Further, the glass substrate 40 may be sandwiched between the forming die 50 and the restraining tool 61. Furthermore, when a vacuum forming method is employed, the mold 50 can be restrained by a vacuum. The fixing of the glass base material 40 by the restraint 61 effectively prevents the ear portion 21 and the support portion 22 from jumping up due to molding.
　拘束具６１の治具や、おもりなどの材料としては、カーボン、フューズドシリカなどのガラス材料、耐酸化被膜が形成された金属などが好ましい。また、治具やおもりには、後切りの際の切り取り線や、製品ロット情報などを転写するための凹凸が形成されてもよい。 As a material for the jig of the restraint 61 and a weight, a glass material such as carbon or fused silica, or a metal on which an oxidation resistant film is formed is preferable. In addition, the jig or the weight may be formed with unevenness for transferring a cut line at the time of post-cutting or product lot information.
　拘束具６１の表面粗さは特に制限はないが、算術平均面粗さＲａは２．５μｍ以下、算術平均うねりＷａは１．６μｍ以下が好ましく、算術平均面粗さＲａは１．０μｍ以下、算術平均うねりＷａは０．４μｍ以下がより好ましい。 The surface roughness of the restraint 61 is not particularly limited, but the arithmetic average surface roughness Ra is preferably 2.5 μm or less, the arithmetic average waviness Wa is preferably 1.6 μm or less, and the arithmetic average surface roughness Ra is 1.0 μm or less. The arithmetic average waviness Wa is more preferably 0.4 μm or less.
　そして、図６（ｂ）に示すように、ヒータ６０によりガラス基材４０を成形温度（５００～８００℃）まで昇温して軟化させた後、吸引路５４、及び排気孔５２を介してガラス基材４０と成形型５０との間の空気を不図示の真空装置で排気して、ガラス基材４０と成形型５０との間を負圧とする。 Then, as shown in FIG. 6B, the glass substrate 40 is heated up to the molding temperature (500 to 800 ° C.) by the heater 60 and softened, and then the glass substrate 40 is passed through the suction passage 54 and the exhaust hole 52. Air between the base material 40 and the mold 50 is exhausted by a vacuum device (not shown), and a negative pressure is set between the glass base material 40 and the mold 50.
　軟化したガラス基材４０は、重力と、真空装置により供給される負圧によって、次第に下方に湾曲して、成形面５１に倣って成形される。また、同時に、ガラス基材４０には、第１マーク２５及び第２マーク２６が形成される。これらのうち、第１マーク２５は、排気孔５２の孔跡によって形成される。この成形工程においては、図８に示すように、載置時には成形型５０の温度より低い状態であったガラス基材４０の温度は、成形終了時には、逆転して成形型５０の温度より高い状態となる。 The softened glass substrate 40 is gradually bent downward by gravity and a negative pressure supplied by a vacuum apparatus, and is molded following the molding surface 51. At the same time, the first mark 25 and the second mark 26 are formed on the glass substrate 40. Among these, the first mark 25 is formed by the trace of the exhaust hole 52. In this molding step, as shown in FIG. 8, the temperature of the glass substrate 40 that was lower than the temperature of the mold 50 at the time of placement is reversed and higher than the temperature of the mold 50 at the end of molding. It becomes.
　成形開始時に、成形型５０の温度をガラス基材４０の温度より高くしておくことで、成形型５０からの輻射や熱伝導によりガラス基材４０を急速に加熱できる利点を有する。その後、成形型５０よりガラス基材４０の方が高くなり、その状態での成型時におけるガラス基材４０と成形型５０との最大温度差は、１００℃未満が好ましい。これにより、ガラス基材４０と成形型５０との熱膨張率の差によるマーク転写不具合を抑制できる。また成形体２０への成形型５０の成形面５１の転写を抑制できる。 At the start of molding, by setting the temperature of the mold 50 higher than the temperature of the glass substrate 40, there is an advantage that the glass substrate 40 can be rapidly heated by radiation or heat conduction from the mold 50. Thereafter, the glass substrate 40 is higher than the mold 50, and the maximum temperature difference between the glass substrate 40 and the mold 50 during molding in that state is preferably less than 100 ° C. Thereby, the mark transfer malfunction by the difference in the thermal expansion coefficient of the glass base material 40 and the shaping | molding die 50 can be suppressed. Moreover, transfer of the molding surface 51 of the molding die 50 to the molded body 20 can be suppressed.
　次いで、図７（ａ）に示すように、成形された成形体シート１０と成形型５０とを５０～５００℃付近まで冷却して真空装置を停止し、図７（ｂ）に示すように、成形体シート１０を成形型５０から離型する。なお、冷却工程には、アニール温度で所定時間保持して、成形体シート１０に残留する内部応力を除去するアニール処理工程を含んでもよい。 Next, as shown in FIG. 7 (a), the molded body sheet 10 and the molding die 50 are cooled to around 50 to 500 ° C. to stop the vacuum device, and as shown in FIG. 7 (b), The molded body sheet 10 is released from the mold 50. Note that the cooling step may include an annealing treatment step of removing the internal stress remaining in the molded body sheet 10 by holding at the annealing temperature for a predetermined time.
　なお、上記した成形工程では、真空成形法による成形について説明したが、圧空成形法などの他の差圧成形法を利用でき、また、自重成形法、プレス成形法などもあり、成形後のガラス形状に応じて、所望の成形法が選択される。 In the above-described forming process, the forming by the vacuum forming method has been described. However, other differential pressure forming methods such as a pressure forming method can be used, and there are also a self-weight forming method, a press forming method, and the like. A desired molding method is selected depending on the shape.
　圧空成形法は、成形体２０の雌型となる成形面５１が形成された成形型５０上にガラス基材４０を設置し、該ガラス基材４０上にクランプ金型を設置してガラス基材４０の周辺をシールする。その後、該ガラス基材４０を加熱して軟化させて、ガラス基材４０の上面に対して圧縮空気によって圧力を付与し、ガラス基材４０の表裏面に差圧を与えて成形する方法である。なお、真空成形法と圧空成形法とは、互いに組み合わせて行ってもよい。 In the pressure forming method, a glass substrate 40 is installed on a molding die 50 on which a molding surface 51 to be a female mold of the molded body 20 is formed, and a clamp mold is installed on the glass substrate 40 to form a glass substrate. Seal around 40. Thereafter, the glass substrate 40 is heated and softened, pressure is applied to the upper surface of the glass substrate 40 with compressed air, and a pressure difference is applied to the front and back surfaces of the glass substrate 40 for molding. . The vacuum forming method and the pressure forming method may be performed in combination with each other.
　自重成形法は、成形ガラスの形状に応じた所定の金型上にガラス基材４０を設置した後、該ガラス基材４０を加熱して軟化させて、重力によりガラス基材４０を曲げて金型になじませて、所定の形状に成形する方法である。 In the self-weight molding method, after the glass substrate 40 is placed on a predetermined mold corresponding to the shape of the molded glass, the glass substrate 40 is heated and softened, and the glass substrate 40 is bent by gravity to be gold. This is a method of forming into a predetermined shape by fitting into a mold.
　プレス成形法は、成形ガラスの形状に応じた所定の金型（下型、上型）間にガラス基材４０を設置し、ガラス基材４０を軟化させた状態で、上下の金型間にプレス荷重を加えて、ガラス基材４０を曲げて金型になじませて、所定の形状に成形する方法である。 In the press molding method, a glass substrate 40 is placed between predetermined molds (lower mold, upper mold) according to the shape of the molded glass, and the glass substrate 40 is softened, and the upper and lower molds are placed between them. This is a method in which a press load is applied, the glass substrate 40 is bent and fitted into a mold, and formed into a predetermined shape.
　したがって、真空成形法以外の他の成形法では、成形型５０に設けた窪み（図示せず）を、第１マーク２５や第２マーク２６を形成するマーク形成部とすることもできる。 Therefore, in a molding method other than the vacuum molding method, a recess (not shown) provided in the molding die 50 can be used as a mark forming portion for forming the first mark 25 and the second mark 26.
　このようにして図５～図８で説明した手順により成形された成形体シート１０には、図９に示すように、複数（図に示す実施形態では９個）の成形体２０が整列配置されている。 As shown in FIG. 9, a plurality (9 in the embodiment shown in the drawings) of the molded bodies 20 are arranged and arranged on the molded body sheet 10 formed by the procedure described in FIGS. ing.
　その後、図１０（ａ）に示すように、成形体シート１０は、支持部２２の略中央部分で切断して複数に分割される。次いで、図１０（ｂ）に示すように、第２マーク２６同士を結ぶ粗切りラインＣＬに沿って切断して、図１０（ｃ）に示す成形体小片３０とする。粗切りラインＣＬに沿って切断し、成形体小片３０とすることで、複数の切断機を適用でき、生産性が向上する。成形体小片３０では、第２マーク２６は分離されるものの、第１マーク２５は各成形体２０の角部に残っている。 Thereafter, as shown in FIG. 10A, the molded body sheet 10 is cut at a substantially central portion of the support portion 22 and divided into a plurality of portions. Next, as shown in FIG. 10 (b), it is cut along a rough cutting line CL connecting the second marks 26 to form a compact body piece 30 shown in FIG. 10 (c). A plurality of cutting machines can be applied by cutting along the rough cutting line CL to form the compact 30, thereby improving productivity. In the compact piece 30, the second mark 26 is separated, but the first mark 25 remains at the corner of each compact 20.
　成形体小片３０は、第１マーク２５を基準として位置決めした後、第１マーク２５同士を結ぶ位置決めラインを基準として、デザインラインＤＬに沿って切断して図１０（ｄ）に示す成形体２０とする。これにより、成形体２０には、第１マーク２５も分離される。そして、成形体２０は、その周縁部が後述する研磨加工や面取加工などにより仕上げ加工されて製品が完成する。 After the molded piece 30 is positioned with respect to the first mark 25, the molded piece 20 is cut along the design line DL with reference to the positioning line connecting the first marks 25 and the molded body 20 shown in FIG. To do. Accordingly, the first mark 25 is also separated from the molded body 20. And the molded object 20 is finished by the grinding | polishing process or chamfering process which the peripheral part mentions later, and a product is completed.
　以上説明したように、本実施形態の成形体シート１０によれば、第１主面Ｓ１と第２主面Ｓ２を有する成形体シート１０であって、成形体２０と、成形体シート１０の外縁部であって成形体２０の周縁部に接続する耳部２１と、を備え、成形体２０の周縁部には、成形体側側面部２３ａと耳部側側面部２３ｂとによる側面部２３を有する。そして、成形体２０には、第２主面Ｓ２から突出する凸部と、第１主面Ｓ１のうち前記凸部に対応する位置に形成された凹部とが形成され、耳部側側面部２３ｂに第１マーク２５が設けられる。これにより、成形体２０の製品部に孔跡が形成されず、且つ、成形後の冷却時に第１マーク２５が変形することが抑制され、成形体側側面部２３ａを有する成形体２０を精度よく後切り及び加工できる。 As described above, according to the molded body sheet 10 of the present embodiment, the molded body sheet 10 has the first main surface S1 and the second main surface S2, and includes the molded body 20 and the outer edge of the molded body sheet 10. And an ear portion 21 connected to the peripheral portion of the molded body 20, and the peripheral portion of the molded body 20 has a side surface portion 23 including a molded body side surface portion 23 a and an ear portion side surface portion 23 b. The molded body 20 is formed with a convex portion protruding from the second main surface S2 and a concave portion formed at a position corresponding to the convex portion of the first main surface S1, and the ear side surface portion 23b. The first mark 25 is provided in the first. As a result, no hole marks are formed in the product portion of the molded body 20, and the first mark 25 is prevented from being deformed during cooling after molding, and the molded body 20 having the molded body side surface portion 23a is accurately backed. Can be cut and processed.
　また、第１マーク２５は、成形体シート１０の第２主面Ｓ２に形成されるのが好ましい。これにより、後切りの際に仕上げ加工用アライメントマークとしての利用が容易になる。 The first mark 25 is preferably formed on the second main surface S2 of the molded body sheet 10. This facilitates the use as an alignment mark for finishing at the time of post-cutting.
　また、第１マーク２５は、第２主面Ｓ２から突出して形成されることが好ましい。これにより、真空成形用の排気孔５２をマーク形成部として利用できる。 The first mark 25 is preferably formed so as to protrude from the second major surface S2. Thereby, the vacuum forming exhaust hole 52 can be used as a mark forming portion.
　また、第２主面Ｓ２の算術平均面粗さＲａ２は、第１主面Ｓ１の算術平均面粗さＲａ１より大きいことが好ましい。これにより、第２主面Ｓ２が使用者の触れるデザイン面となる場合は、ＡＦＰコートなどの表面処理層が剥がれにくくなる効果が得られる。第２主面Ｓ２が使用者の触れないデザイン内側となる場合は、接着材や印刷層の接着強度を向上でき、剥離抑制を向上できる効果がある。 Further, the arithmetic average surface roughness Ra2 of the second main surface S2 is preferably larger than the arithmetic average surface roughness Ra1 of the first main surface S1. Thereby, when 2nd main surface S2 turns into a design surface which a user touches, the effect that surface treatment layers, such as an AFP coat, become difficult to peel is acquired. When the second main surface S2 is on the inner side of the design not touched by the user, it is possible to improve the adhesive strength of the adhesive material or the printing layer, and to improve the suppression of peeling.
　また、第１マーク２５の算術平均面粗さＲａ２´は、第２主面Ｓ２の算術平均面粗さＲａ２より小さいことが好ましい。これにより、後切りの際に第１マーク２５を容易に視認でき、自動位置決め装置などのカメラで認識する際のコントラストがつきやすい。 The arithmetic average surface roughness Ra2 ′ of the first mark 25 is preferably smaller than the arithmetic average surface roughness Ra2 of the second main surface S2. Thereby, the first mark 25 can be easily visually recognized at the time of rear cut, and the contrast when recognized by a camera such as an automatic positioning device is easily obtained.
　また、耳部２１は、耳部側側面部２３ｂの周囲に耳部側基部２４ａを有し、耳部側基部２４ａには、第２マーク２６を備えることが好ましい。これにより、成形体シート１０を成形体小片３０に容易に分割できる。 Further, it is preferable that the ear portion 21 has an ear-side base portion 24a around the ear-side side surface portion 23b, and the ear-side base portion 24a includes the second mark 26. Thereby, the molded object sheet | seat 10 can be divided | segmented into the molded object piece 30 easily.
　また、第２マーク２６は、成形体シート１０の第２主面Ｓ２に形成されることが好ましい。これにより、成形体シート１０を成形体小片３０に分割する際のアライメントマークとして容易に利用できる。 Moreover, it is preferable that the second mark 26 is formed on the second main surface S2 of the molded sheet 10. Thereby, it can utilize easily as an alignment mark at the time of dividing the molded object sheet | seat 10 into the molded object small piece 30. FIG.
　また、第２主面Ｓ２における耳部側基部２４ａと耳部側側面部２３ｂとの境界線を含んで形成される面を基準面ＳＳとしたとき、耳部側基部２４ａの第２主面Ｓ２から基準面ＳＳに引いた垂線Ｌ１の長さは、１ｍｍ以下であるので、成形体シート１０を平面に置いたときのガタツキが少なく、安定した状態で成形体小片３０に加工できる。 Moreover, when the surface formed including the boundary line between the ear portion side base portion 24a and the ear portion side surface portion 23b in the second main surface S2 is defined as the reference surface SS, the second main surface S2 of the ear portion side base portion 24a. Since the length of the perpendicular line L1 drawn from the reference surface SS to the reference surface SS is 1 mm or less, there is little backlash when the molded body sheet 10 is placed on a flat surface, and the molded body piece 30 can be processed in a stable state.
　また、成形体シート１０は、複数の成形体２０を有するので、成形体２０を効率よく成形できる。 Moreover, since the molded object sheet 10 has the some molded object 20, it can shape | mold the molded object 20 efficiently.
　また、成形体シート１０は、成形体シート１０を構成する、第２主面Ｓ２から突出する凸部が、曲率半径が０．１ｍｍ以上１０ｍｍ以下の曲面形状を有するので、成形体シートの強度を保ちながら美観や触感を向上できる。 Moreover, since the convex part which protrudes from 2nd main surface S2 which comprises the molded object sheet 10 has the curved surface shape whose curvature radius is 0.1 mm or more and 10 mm or less, the molded object sheet 10 has the intensity | strength of a molded object sheet. The beauty and touch can be improved while maintaining.
　また、隣接する成形体２０同士を接続する支持部２２の第２主面Ｓ２から基準面ＳＳに引いた垂線Ｌ２の長さは、１ｍｍ以下が好ましい。これにより、成形体シート１０を平面に置いたときのガタツキが少なく、安定した状態で成形体小片３０に加工できる。 Further, the length of the perpendicular L2 drawn from the second main surface S2 of the support portion 22 that connects the adjacent molded bodies 20 to the reference surface SS is preferably 1 mm or less. Thereby, there is little backlash when the molded object sheet | seat 10 is set | placed on a plane, and it can process to the molded object piece 30 in the stable state.
　また、本実施形態の成形体小片３０によれば、第１主面Ｓ１と第２主面Ｓ２を有し、成形体小片３０は、成形体２０と、成形体２０の周縁部に接続する耳部２１または支持部２２と、を備え、成形体２０の周縁部には、成形体側側面部２３ａと、耳部側側面部２３ｂまたは支持部側側面部２３ｃとによる側面部２３を有する。そして、成形体２０には、第２主面Ｓ２から突出する凸部と、第１主面Ｓ１のうち前記凸部に対応する位置に形成された凹部とが形成され、耳部側側面部２３ｂまたは支持部側側面部２３ｃに第１マーク２５を備える。これにより、成形体２０に孔跡が形成されず、且つ、成形後の冷却時に第１マーク２５が変形することが抑制され、成形体側側面部２３ａを有する成形体２０を精度よく後切りできる形状に成形できる。 Moreover, according to the molded object piece 30 of this embodiment, it has 1st main surface S1 and 2nd main surface S2, and the molded object piece 30 is the ear | edge connected to the molded object 20 and the peripheral part of the molded object 20. Part 21 or support part 22, and at the peripheral part of the molded body 20, the molded body side side part 23 a and the side part 23 constituted by the ear part side side part 23 b or the support part side side part 23 c are provided. The molded body 20 is formed with a convex portion protruding from the second main surface S2 and a concave portion formed at a position corresponding to the convex portion of the first main surface S1, and the ear side surface portion 23b. Or the 1st mark 25 is provided in the support part side surface part 23c. As a result, a hole mark is not formed in the molded body 20, and the first mark 25 is prevented from being deformed during cooling after molding, and the molded body 20 having the molded body side surface portion 23a can be accurately cut back. Can be molded.
　さらに、第１マーク２５は、成形体小片３０の第２主面Ｓ２に形成され、第１マーク２５の算術平均面粗さＲａ２´は、第２主面Ｓ２の算術平均面粗さＲａ２より小さいので、後切りの際に第１マーク２５を容易に視認できる。 Further, the first mark 25 is formed on the second main surface S2 of the compact piece 30, and the arithmetic average surface roughness Ra2 ′ of the first mark 25 is smaller than the arithmetic average surface roughness Ra2 of the second main surface S2. Therefore, the first mark 25 can be easily visually recognized at the time of post-cutting.
　また、第２主面Ｓ２における耳部側基部２４ａと耳部側側面部２３ｂまたは支持部側側面部２３ｃとの境界線を含んで形成される面を基準面ＳＳとしたとき、耳部２１または支持部２２の第２主面Ｓ２から基準面ＳＳに引いた垂線Ｌ２の長さは、１ｍｍ以下であるので、成形体小片３０をガタツキなく、安定して載置できる。 Further, when the surface formed including the boundary line between the ear-side base portion 24a and the ear-side side surface portion 23b or the support-portion-side side surface portion 23c in the second main surface S2 is defined as the reference surface SS, Since the length of the perpendicular L2 drawn from the second main surface S2 of the support portion 22 to the reference surface SS is 1 mm or less, the compact piece 30 can be stably placed without rattling.
　また、本実施形態の成形体シートの製造方法によれば、ガラス基材４０を下金型５０上に載置し（載置工程）、ガラス基材４０に下金型５０に倣った形状の成形体２０を成形し（成形工程）、ガラス基材４０と接する下金型５０の上面は、成形体２０の側面部２３を付与する成形面５１と、位置合わせ用の第１マーク２５を耳部側側面部２３ｂに付与する排気孔５２（マーク形成部）と、を備えるので、成形体２０に孔跡が形成されず、且つ、成形後の冷却時に第１マーク２５が変形することが抑制され、成形体側側面部２３ａを有する成形体２０を精度よく後切りできる形状に成形できる。 Further, according to the method for manufacturing a molded body sheet of the present embodiment, the glass substrate 40 is placed on the lower mold 50 (placement step), and the glass substrate 40 has a shape that follows the lower mold 50. The molded body 20 is molded (molding process), and the upper surface of the lower mold 50 in contact with the glass substrate 40 is provided with a molding surface 51 for providing the side surface portion 23 of the molded body 20 and the first mark 25 for alignment. Since the exhaust hole 52 (mark formation part) provided to the part side surface part 23b is provided, no hole mark is formed in the molded body 20, and the first mark 25 is prevented from being deformed during cooling after molding. Thus, the molded body 20 having the molded body side surface portion 23a can be molded into a shape that can be accurately cut later.
　また、成形体を成形する際、成形開始時のガラス基材４０の温度は下金型５０の温度より低く、成形終了時には温度が逆転してガラス基材４０の温度が下金型５０の温度より高くなるのが好ましい。ガラス基材４０の温度が下金型５０の温度より高い状態でのガラス基材４０と下金型５０との温度差は１００℃未満である。これは、連続して成形を行う場合に、２回目以降の成形において下金型５０の冷却時間が短縮されると共に、成形中のガラス基材４０を急加熱するのに有効である。また、下金型５０とガラス基材４０との熱膨張差による第１、及び第２マーク２５、２６の転写不具合を抑制できる。 Further, when molding the molded body, the temperature of the glass substrate 40 at the start of molding is lower than the temperature of the lower mold 50, and the temperature is reversed at the end of molding so that the temperature of the glass substrate 40 is the temperature of the lower mold 50. Higher is preferred. The temperature difference between the glass substrate 40 and the lower mold 50 in a state where the temperature of the glass substrate 40 is higher than the temperature of the lower mold 50 is less than 100 ° C. This is effective for shortening the cooling time of the lower mold 50 in the second and subsequent moldings and for rapidly heating the glass substrate 40 during molding when molding is performed continuously. Moreover, the transfer defect of the 1st and 2nd marks 25 and 26 by the thermal expansion difference of the lower metal mold | die 50 and the glass base material 40 can be suppressed.
　また、マーク形成部は、下金型５０に形成された窪みであってもよく、この場合プレス成形法によって、マークを容易に形成できる。 Further, the mark forming portion may be a depression formed in the lower mold 50. In this case, the mark can be easily formed by a press molding method.
　あるいは、マーク形成部は、下金型５０の成形面５１から下金型５０の吸引路５４に貫通形成された排気孔５２であってもよく、この場合、真空成形法によって、排気孔５２をマーク形成部として利用でき、下金型５０を容易に製作できる。 Alternatively, the mark forming portion may be an exhaust hole 52 penetratingly formed from the molding surface 51 of the lower mold 50 to the suction path 54 of the lower mold 50. In this case, the exhaust hole 52 is formed by a vacuum molding method. It can be used as a mark forming portion, and the lower mold 50 can be easily manufactured.
　また、成形体を成形する際、ガラス基材４０と接する下金型５０側の圧力が、ガラス基材４０の反対側の圧力より低いので、真空成形法や圧空成形法などの差圧成形法により型転写精度の高い成形体２０が得られる。 Further, when the molded body is molded, since the pressure on the lower mold 50 side in contact with the glass substrate 40 is lower than the pressure on the opposite side of the glass substrate 40, a differential pressure molding method such as a vacuum molding method or a pressure molding method. Thus, a molded body 20 with high mold transfer accuracy can be obtained.
　また、上記実施形態では、第１マーク２５は、成形体シート１０の第２主面Ｓ２に形成されているが、成形体シート１０の第１主面Ｓ１に形成されてもよい。この場合、第１マーク２５は、プレス成形で上金型に溝を設けておくことで形成されてもよく、或いは、真空成形で上金型から負圧を供給することで形成されてもよい。 Moreover, in the said embodiment, although the 1st mark 25 is formed in 2nd main surface S2 of the molded object sheet 10, you may form in 1st main surface S1 of the molded object sheet 10. FIG. In this case, the first mark 25 may be formed by providing a groove in the upper mold by press molding, or may be formed by supplying a negative pressure from the upper mold by vacuum molding. .
　尚、本発明は、前述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。また、ガラス基材４０や成形体２０（以下、まとめてガラス基材等という）には、以下のような工程・処理がされてもよい。 It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. can be made as appropriate. Moreover, the following processes and processes may be performed on the glass substrate 40 and the molded body 20 (hereinafter collectively referred to as a glass substrate or the like).
　（研削・研磨加工工程）
　ガラス基材等の少なくとも一方の主面に研削加工や研磨加工を実施してもよい。 (Grinding / polishing process)
Grinding or polishing may be performed on at least one main surface of a glass substrate or the like.
　（端面加工・孔あけ加工工程）
　ガラス基材等の周縁部や端面は、面取加工などの処理がなされていてもよい。機械的な研削により一般的にＲ面取、Ｃ面取と呼ばれる加工を行うのが好ましいが、エッチングなどで加工を行ってもよく、特に限定されない。また、平板状のガラス基材を予め端面加工してから成形工程を実施してもよい。
　また成形工程の前後問わず、ガラス基材に孔あけ加工を行ってもよい。 (End face processing / drilling process)
Processing such as chamfering processing may be performed on the peripheral portion and the end surface of the glass substrate or the like. It is preferable to perform processing generally called R chamfering or C chamfering by mechanical grinding, but processing may be performed by etching or the like, and is not particularly limited. Moreover, you may implement a shaping | molding process after carrying out end surface processing of the flat glass base material previously.
Moreover, you may drill a hole in a glass base material before and after a shaping | molding process.
　（化学強化工程）
　ガラス基材等は、化学強化により表面に圧縮応力層を形成し、強度及び耐擦傷性が高められる。化学強化は、ガラス転移点以下の温度でイオン交換によりガラス表面のイオン半径が小さなアルカリ金属イオン（典型的には、Ｎａイオン）を、イオン半径のより大きなアルカリ金属イオン（典型的には、Ｋイオン）に交換することで、ガラス表面に圧縮応力層を形成する処理である。化学強化処理は従来公知の方法によって実施でき、一般的には硝酸カリウム溶融塩にガラスを浸漬する。この浸漬回数は１回以上であり、異なった溶融塩の条件で２回以上実施してよい。この溶融塩に炭酸カリウムを１０質量％程度混合して使用してもよい。これによりガラスの表層のクラックなどを除去でき高強度のガラスが得られる。化学強化時に硝酸カリウムに硝酸銀などの銀成分を混合することで、ガラスがイオン交換され銀イオンを表面に有し抗菌性を付与できる。 (Chemical strengthening process)
A glass substrate or the like forms a compressive stress layer on the surface by chemical strengthening, and the strength and scratch resistance are improved. Chemical strengthening is performed by ion exchange at a temperature lower than the glass transition temperature to convert an alkali metal ion (typically, Na ion) having a small ionic radius on the glass surface to an alkali metal ion (typically, K ion) having a larger ionic radius. This is a process of forming a compressive stress layer on the glass surface by exchanging with (ion). The chemical strengthening treatment can be performed by a conventionally known method, and generally the glass is immersed in molten potassium nitrate. This immersion is performed once or more, and may be performed twice or more under different molten salt conditions. You may mix and use about 10 mass% of potassium carbonate for this molten salt. Thereby, cracks and the like on the surface layer of the glass can be removed, and a high-strength glass can be obtained. By mixing a silver component such as silver nitrate with potassium nitrate at the time of chemical strengthening, the glass is ion-exchanged to have silver ions on the surface and impart antibacterial properties.
　成形体が複数形成された成形体シートを化学強化してから、切断などして成形体を得てもよい。これにより複数の成形体として化学強化処理を実施することに比べ、効率的に化学強化処理を実施できる。成形体シートから成形体を切り出して、化学強化を実施してもよい。これにより成形体の端面まで化学強化され、高強度の成形体が得られる。 ¡Chemical strengthening of a molded body sheet on which a plurality of molded bodies are formed may be followed by cutting to obtain a molded body. Thereby, compared with performing a chemical strengthening process as a some molded object, a chemical strengthening process can be implemented efficiently. Chemical strengthening may be performed by cutting the molded body from the molded body sheet. Thereby, it chemically strengthens to the end surface of a molded object, and a high intensity | strength molded object is obtained.
（印刷工程）
　印刷工程としては、例えば、スプレー印刷、インクジェット印刷やスクリーン印刷が利用される。これらの方法により、面積の広いガラス基材でも良好に印刷できる。特に、スプレー印刷では、屈曲部を有するガラス基材等に印刷しやすく、印刷面の表面粗さを調整しやすい。一方、スクリーン印刷では、広い平坦部を有するガラス基材等に平均厚さが均一になるように所望の印刷パターンを形成しやすい。また、インキは、複数使用してよいが、印刷層の密着性の観点から同一のインキであることが好ましい。 (Printing process)
For example, spray printing, ink jet printing, or screen printing is used as the printing process. By these methods, even a glass substrate having a large area can be printed well. In particular, in spray printing, it is easy to print on a glass substrate or the like having a bent portion, and the surface roughness of the printed surface is easy to adjust. On the other hand, in screen printing, it is easy to form a desired printing pattern so that the average thickness is uniform on a glass substrate having a wide flat portion. A plurality of inks may be used, but the same ink is preferable from the viewpoint of adhesion of the printed layer.
　成形体が複数形成された成形体シートに予め印刷してから、切断などにより成形体を得てもよい。これにより成形体を一枚ずつ印刷することに比べ、効率的に印刷を実施できる。成形体シートから成形体を切り出して、印刷を実施してもよい。これにより成形体の印刷層が高品質となり、外観に優れた成形体が得られる。 A molded body may be obtained by cutting in advance after printing on a molded body sheet on which a plurality of molded bodies are formed. As a result, it is possible to perform printing more efficiently than printing the compacts one by one. The molded body may be cut out from the molded body sheet and printed. Thereby, the printed layer of a molded object becomes high quality, and the molded object excellent in the external appearance is obtained.
　印刷層を形成するインキは、無機系でも有機系であってもよい。無機系のインキとしては、例えば、ＳｉＯ２、ＺｎＯ、Ｂ２Ｏ３、Ｂｉ２Ｏ３、Ｌｉ２Ｏ、Ｎａ２Ｏ、及びＫ２Ｏから選択される１種以上、ＣｕＯ、Ａｌ２Ｏ３、ＺｒＯ２、ＳｎＯ２、及びＣｅＯ２から選択される１種以上、Ｆｅ２Ｏ３、及びＴｉＯ２からなる組成物、のいずれであってもよい。 The ink forming the printing layer may be inorganic or organic. Examples of the inorganic ink include one or more selected from SiO 2 , ZnO, B 2 O 3 , Bi 2 O 3 , Li 2 O, Na 2 O, and K 2 O, CuO, Al 2 O 3. One or more selected from ZrO 2 , SnO 2 , and CeO 2 , a composition comprising Fe 2 O 3 and TiO 2 may be used.
　有機系のインキとしては、樹脂を溶剤に溶解した種々の印刷材料を使用できる。例えば、樹脂としては、アクリル樹脂、ウレタン樹脂、エポキシ樹脂、ポリエステル樹脂、ポリアミド樹脂、酢酸ビニル樹脂、フェノール樹脂、オレフィン、エチレン－酢酸ビニル共重合樹脂、ポリビニルアセタール樹脂、天然ゴム、スチレン－ブタジエン共重合体、アクリルニトリル－ブタジエン共重合体、ポリエステルポリオール、ポリエーテルポリウレタンポリエール等の樹脂からなる群から少なくとも１種を選択して使用してよい。また、溶媒としては、水、アルコール類、エステル類、ケトン類、芳香族炭化水素系溶剤、脂肪族炭化水素系溶剤を用いてもよい。例えば、アルコール類としては、イソプロピルアルコール、メタノール、エタノール等を使用でき、エステル類としては酢酸エチル、ケトン類としてはメチルエチルケトンを使用できる。また、芳香族炭化水素系溶剤としては、トルエン、キシレン、エクソンモービル社製のソルベッソ１００やソルベッソ１５０等を使用でき、脂肪族炭化水素系溶剤としてはヘキサン等を使用できる。なお、これらは例として挙げたものであり、その他、種々の印刷材料を使用できる。前記有機系の印刷材料は、透明板に塗布した後、溶媒を蒸発させて樹脂の層を形成することで印刷層が得られる。 As the organic ink, various printing materials in which a resin is dissolved in a solvent can be used. For example, the resin includes acrylic resin, urethane resin, epoxy resin, polyester resin, polyamide resin, vinyl acetate resin, phenol resin, olefin, ethylene-vinyl acetate copolymer resin, polyvinyl acetal resin, natural rubber, styrene-butadiene copolymer At least one selected from the group consisting of resins such as coalescence, acrylonitrile-butadiene copolymer, polyester polyol, and polyether polyurethane polyether may be used. As the solvent, water, alcohols, esters, ketones, aromatic hydrocarbon solvents, and aliphatic hydrocarbon solvents may be used. For example, isopropyl alcohol, methanol, ethanol or the like can be used as the alcohol, ethyl acetate can be used as the ester, and methyl ethyl ketone can be used as the ketone. Further, as the aromatic hydrocarbon solvent, toluene, xylene, Solvesso 100 or Solvesso 150 manufactured by ExxonMobil Inc. can be used, and hexane or the like can be used as the aliphatic hydrocarbon solvent. These are given as examples, and various other printing materials can be used. The organic printing material is applied to a transparent plate, and then the solvent is evaporated to form a resin layer to obtain a printed layer.
　印刷層に用いられるインキは、着色剤が含まれてもよい。着色剤としては、例えば、印刷層を黒色とする場合はカーボンブラックなどの黒色の着色剤を使用できる。その他、所望の色に応じて適切な色の着色剤を使用できる。 The ink used for the printing layer may contain a colorant. As the colorant, for example, when the printing layer is black, a black colorant such as carbon black can be used. In addition, a colorant having an appropriate color can be used according to a desired color.
（表面処理工程）
　ガラス基材等において必要に応じて各種表面処理層を形成する工程を実施してもよい。表面処理層としては、防眩処理層、反射防止処理層、防汚処理層などが挙げられ、これらを併用してもよい。ガラス基材等の第１主面又は第２主面のいずれの面でもよい。これらは成形工程後に形成されることが好ましいが、防眩処理層は成形工程前でもよい。平板状のガラス基材をエッチングなどにより防眩処理層を形成してから成形を実施してもよい。 (Surface treatment process)
You may implement the process of forming various surface treatment layers in a glass base material etc. as needed. Examples of the surface treatment layer include an antiglare treatment layer, an antireflection treatment layer, and an antifouling treatment layer, and these may be used in combination. Either the first main surface or the second main surface such as a glass substrate may be used. These are preferably formed after the molding step, but the antiglare treatment layer may be before the molding step. The flat glass substrate may be formed after forming an antiglare treatment layer by etching or the like.
　［防眩処理層］
　防眩処理層とは、主に反射光を散乱させ、光源の映り込みによる反射光の眩しさを低減する効果をもたらす層のことである。防眩処理層は、ガラス基材の表面を加工して形成してもよく、別途堆積形成してもよい。防眩処理層の形成方法として、例えば、ガラス基材の少なくとも一部に化学的（例、エッチング）あるいは物理的（例、サンドブラスト）な方法で表面処理を施し、所望の表面粗さの凹凸形状を形成する方法を使用できる。また、形成方法として、ガラス基材等の少なくとも一部に処理液を塗布あるいは噴霧して、板上に凹凸構造を形成してもよい。さらに熱的な方法によりガラス基材等の少なくとも一部に凹凸構造を形成してもよい。 [Anti-glare treatment layer]
The anti-glare layer is a layer that mainly scatters reflected light and brings about an effect of reducing glare of reflected light due to reflection of a light source. The antiglare layer may be formed by processing the surface of the glass substrate, or may be separately deposited. As a method for forming an antiglare layer, for example, at least part of a glass substrate is subjected to a surface treatment by a chemical (eg, etching) or physical (eg, sandblasting) method to form an uneven shape with a desired surface roughness. The method of forming can be used. Further, as a forming method, a concavo-convex structure may be formed on a plate by applying or spraying a treatment liquid on at least a part of a glass substrate or the like. Furthermore, you may form an uneven structure in at least one part of a glass base material etc. with a thermal method.
　［反射防止処理層］
　反射防止処理層とは、反射率低減の効果をもたらし、光の映り込みによる眩しさを低減するほか、表示装置に使用した場合には、表示装置からの光の透過率を向上でき、表示装置の視認性を向上できる層のことである。
　反射防止処理層が反射防止膜である場合、ガラス基材等の第１主面または第２主面に形成されることが好ましいが制限は無い。反射防止膜の構成としては光の反射を抑制できれば限定されず、例えば、波長５５０ｎｍでの屈折率が１．９以上の高屈折率層と屈折率が１．６以下の低屈折率層とを積層した構成、もしくは膜マトリックス中に中空粒子や空孔を混在させた波長５５０ｎｍでの屈折率が１．２～１．４の層を含む構成とできる。 [Antireflection treatment layer]
The anti-reflection treatment layer has the effect of reducing reflectivity and reduces glare caused by reflection of light, and when used in a display device, can improve the light transmittance from the display device. It is a layer that can improve the visibility of.
When the antireflection treatment layer is an antireflection film, it is preferably formed on the first main surface or the second main surface of a glass substrate or the like, but there is no limitation. The configuration of the antireflection film is not limited as long as reflection of light can be suppressed. For example, a high refractive index layer having a refractive index of 1.9 or more at a wavelength of 550 nm and a low refractive index layer having a refractive index of 1.6 or less. A laminated structure or a structure including a layer having a refractive index of 1.2 to 1.4 at a wavelength of 550 nm in which hollow particles and pores are mixed in a film matrix.
　［防汚処理層］
　防汚処理層とは、表面への有機物、無機物の付着を抑制する層、または、表面に有機物、無機物が付着した場合においても、ふき取り等のクリーニングにより付着物が容易に除去できる効果をもたらす層のことである。
　防汚処理層が防汚膜として形成される場合、ガラス基材の第１主面と第２主面上またはその他表面処理層上に形成されることが好ましい。防汚処理層としては、得られるガラス基材に防汚性を付与できれば限定されない。中でも含フッ素有機ケイ素化合物を加水分解縮合反応により得られる含フッ素有機ケイ素化合物被膜からなることが好ましい。 [Anti-fouling treatment layer]
An antifouling treatment layer is a layer that suppresses the adhesion of organic and inorganic substances to the surface, or a layer that provides an effect that the adhering substances can be easily removed by cleaning such as wiping even when organic or inorganic substances adhere to the surface. That is.
When the antifouling treatment layer is formed as an antifouling film, it is preferably formed on the first main surface and the second main surface of the glass substrate or other surface treatment layer. The antifouling treatment layer is not limited as long as antifouling properties can be imparted to the obtained glass substrate. Among these, a fluorine-containing organic silicon compound film obtained by hydrolytic condensation reaction of a fluorine-containing organic silicon compound is preferable.
　成形体が複数形成された成形体シートに予め表面処理層を形成してから、切断などして成形体を得てもよい。これにより成形体に一枚ずつ表面処理層を形成することに比べ、効率的に表面処理層を形成できる。成形体シートから成形体を切り出して、表面処理層を形成してもよい。これにより成形体の表面処理層の設計が容易となり、所望の光学特性を有する成形体が得られる。 A formed body may be obtained by forming a surface treatment layer in advance on a formed body sheet on which a plurality of formed bodies are formed, and then cutting. Thereby, a surface treatment layer can be formed efficiently compared with forming the surface treatment layer one by one on a compact. You may cut out a molded object from a molded object sheet | seat, and may form a surface treatment layer. This facilitates the design of the surface treatment layer of the molded body, and a molded body having desired optical characteristics can be obtained.
　＜物品＞
　本発明の成形体２０の用途としては、特に限定されない。具体例としては、車載用部品（ヘッドライトカバー、サイドミラー、フロント透明基板、サイド透明基板、リア透明基板、インスツルメントパネル表面、車載用ディスプレー前面板等。）、メータ、建築窓、ショーウインドウ、建築用内装部材、建築用外装部材、カバーガラス（携帯電話、スマートホン、ノート型パソコン、モニタ、ＬＣＤ、ＰＤＰ、ＥＬＤ、ＣＲＴ、ＰＤＡ等）、ＬＣＤカラーフィルタ、タッチパネル用基板、ピックアップレンズ、ＣＣＤ用カバー基板、太陽電池用透明基板（カバーガラス等。）、電子機器筐体、有機ＥＬ発光素子部品、無機ＥＬ発光素子部品、蛍光体発光素子部品、光学フィルタ、照明ランプ、照明器具のカバー、反射防止フィルム、偏光フィルム等が挙げられる。 <Article>
The use of the molded body 20 of the present invention is not particularly limited. Specific examples include automotive components (headlight covers, side mirrors, front transparent substrates, side transparent substrates, rear transparent substrates, instrument panel surfaces, automotive display front plates, etc.), meters, architectural windows, and show windows. , Architectural interior members, Architectural exterior members, cover glasses (cell phones, smart phones, notebook computers, monitors, LCDs, PDPs, ELDs, CRTs, PDAs, etc.), LCD color filters, touch panel substrates, pickup lenses, CCDs Cover substrate for solar cell, transparent substrate for solar cell (cover glass, etc.), electronic equipment casing, organic EL light emitting element component, inorganic EL light emitting element component, phosphor light emitting element component, optical filter, illumination lamp, cover for lighting fixture, An antireflection film, a polarizing film, etc. are mentioned.
　本出願は、２０１６年１１月２２日出願の日本特許出願２０１６－２２７２０４に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on Japanese Patent Application No. 2016-227204 filed on November 22, 2016, the contents of which are incorporated herein by reference.
１０　　成形体シート
２０　　成形体
２１　　耳部
２２　　支持部
２３　　側面部
２３ａ　　　　成形体側側面部
２３ｂ　　　　耳部側側面部
２３ｃ　支持部側側面部
２４ａ　　　　耳部側基部
２４ｂ　　　　支持部側基部
２５　　第1アライメントマーク
２６　　第２アライメントマーク
３０　　成形体小片
４０　　ガラス基材
５０　　成形型（下金型）
５１　　成形面（表面形状）
５２　　排気孔（マーク形成部、孔）
５６　　上面
ＣＬ　　粗切りライン
ＤＬ　　デザインライン
Ｌ１，Ｌ２　　垂線
Ｒａ１　　　第１主面の算術平均面粗さ
Ｒａ２　　　第２主面の算術平均面粗さ
Ｒａ２´　　第１マークの算術平均面粗さ
Ｓ１　　第1主面
Ｓ２　　第２主面
ＳＳ　　基準面 10 molded body sheet 20 molded body 21 ear part 22 support part 23 side part 23a molded body side side part 23b ear part side side part 23c support part side side part 24a ear part side base part 24b support part side base part 25 first alignment mark 26 first 2 Alignment mark 30 Molded body small piece 40 Glass substrate 50 Mold (lower mold)
51 Molding surface (surface shape)
52 Exhaust hole (mark forming part, hole)
56 Upper surface CL Rough cutting line DL Design line L1, L2 Vertical line Ra1 Arithmetic average surface roughness Ra2 of the first main surface Arithmetic average surface roughness Ra2 ′ of the second main surface Arithmetic average surface roughness S1 of the first mark Surface S2 Second main surface SS Reference surface

Claims (19)

  1. 　第１主面と第２主面とを有する成形体シートであって、
    　前記成形体シートは、成形体と、前記成形体シートの外縁部であって前記成形体の周縁部に接続する耳部と、を備え、
    　前記成形体の周縁部には、成形体側側面部と耳部側側面部とによる側面部を備え、
    　前記成形体は、前記第２主面から突出する凸部と、前記第１主面のうち前記凸部に対応する位置に形成された凹部と、を備え、
    　前記耳部側側面部に第１アライメントマークを有する、成形体シート。     A molded sheet having a first main surface and a second main surface,
    The molded body sheet includes a molded body, and an ear portion that is an outer edge portion of the molded body sheet and is connected to a peripheral edge portion of the molded body.
    The peripheral portion of the molded body includes a side surface portion by a molded body side surface portion and an ear portion side surface portion,
    The molded body includes a convex portion protruding from the second main surface, and a concave portion formed at a position corresponding to the convex portion of the first main surface,
    The molded object sheet which has a 1st alignment mark in the said ear | edge part side surface part.
  2. 　前記第１アライメントマークは、前記成形体シートの前記第２主面に形成される、請求項１に記載の成形体シート。 The molded sheet according to claim 1, wherein the first alignment mark is formed on the second main surface of the molded sheet.
  3. 　前記第１アライメントマークは、前記第２主面から突出して形成される、請求項１または２に記載の成形体シート。 The molded sheet according to claim 1 or 2, wherein the first alignment mark is formed to protrude from the second main surface.
  4. 　前記第２主面の算術平均面粗さＲａ２は、前記第１主面の算術平均面粗さＲａ１より大きい、請求項１～３のいずれか１項に記載の成形体シート。 The molded sheet according to any one of claims 1 to 3, wherein an arithmetic average surface roughness Ra2 of the second main surface is greater than an arithmetic average surface roughness Ra1 of the first main surface.
  5. 　前記第１アライメントマークの算術平均面粗さＲａ２´は、前記第２主面の算術平均面粗さＲａ２より小さい、請求項１～４のいずれか１項に記載の成形体シート。 The molded sheet according to any one of claims 1 to 4, wherein the arithmetic average surface roughness Ra2 'of the first alignment mark is smaller than the arithmetic average surface roughness Ra2 of the second main surface.
  6. 　前記第１アライメントマークは、前記成形体シートの前記第１主面に形成される、請求項１に記載の成形体シート。 The molded sheet according to claim 1, wherein the first alignment mark is formed on the first main surface of the molded sheet.
  7. 　前記耳部は、前記耳部側側面部の周囲に耳部側基部を有し、
    　前記耳部側基部には、第２アライメントマークを備える、請求項１～６のいずれか一項に記載の成形体シート。     The ear portion has an ear side base portion around the ear side surface portion,
    The molded body sheet according to any one of claims 1 to 6, further comprising a second alignment mark on the ear side base.
  8. 　前記第２アライメントマークは、前記成形体シートの前記第２主面に形成される、請求項７に記載の成形体シート。 The molded body sheet according to claim 7, wherein the second alignment mark is formed on the second main surface of the molded body sheet.
  9. 　前記耳部は、前記耳部側側面部の周囲に耳部側基部を有し、
    　前記第２主面における前記耳部側基部と前記耳部側側面部との境界線を含んで形成される面を基準面としたとき、
    　前記耳部側基部の前記第２主面の任意の点から前記基準面に引いた垂線の長さは、１ｍｍ以下である、請求項１～８のいずれか１項に記載の成形体シート。     The ear portion has an ear side base portion around the ear side surface portion,
    When a surface formed including a boundary line between the ear portion side base portion and the ear portion side surface portion in the second main surface is a reference surface,
    The molded sheet according to any one of claims 1 to 8, wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the ear side base portion to the reference surface is 1 mm or less.
  10. 　前記成形体シートは、複数の前記成形体を有する、請求項１～９のいずれか１項に記載の成形体シート。 The molded body sheet according to any one of claims 1 to 9, wherein the molded body sheet includes a plurality of the molded bodies.
  11. 　前記成形体を構成する、前記第２主面から突出する前記凸部は、曲率半径が０．１ｍｍ以上１０ｍｍ以下の曲面形状を有する請求項１０に記載の成形体シート。 The molded body sheet according to claim 10, wherein the convex portion protruding from the second main surface constituting the molded body has a curved surface shape with a radius of curvature of 0.1 mm to 10 mm.
  12. 　隣接する前記成形体同士を接続する支持部を備え、
    　前記成形体の周縁部には、成形体側側面部と、支持部側側面部と、による側面部をさらに備え、
    　前記支持部は、前記支持部側側面部の周囲に支持部側基部を有し、
    　前記第２主面における前記支持部側基部と前記支持部側側面部との境界線を含んで形成される面を基準面としたとき、
    　前記支持部側基部の前記第２主面の任意の点から前記基準面に引いた垂線の長さは、１ｍｍ以下である、請求項１０または１１に記載の成形体シート。     A support part for connecting the adjacent molded bodies to each other;
    The peripheral portion of the molded body further includes a side surface portion by a molded body side surface portion and a support portion side surface portion,
    The support part has a support part side base around the support part side surface part,
    When a surface formed including a boundary line between the support portion side base portion and the support portion side surface portion in the second main surface is a reference surface,
    The shaped product sheet according to claim 10 or 11, wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the support side base portion to the reference surface is 1 mm or less.
  13. 　第１主面と第２主面を有する成形体小片であって、
    　前記成形体小片は、１つの成形体と、前記成形体の周縁部に接続する支持部と、を備え、
    　前記成形体の周縁部には、成形体側側面部と、支持部側側面部と、による側面部を備え、
    　前記成形体は、第２主面から突出する凸部と、第１主面のうち前記凸部に対応する位置に形成された凹部と、を備え、
    　前記支持部側側面部に第１アライメントマークを有する、成形体小片。     A molded piece having a first main surface and a second main surface,
    The molded body piece includes one molded body and a support portion connected to the peripheral edge of the molded body,
    The peripheral portion of the molded body includes a side surface portion by a molded body side surface portion and a support portion side surface portion,
    The molded body includes a convex portion protruding from the second main surface, and a concave portion formed at a position corresponding to the convex portion of the first main surface,
    A compact piece having a first alignment mark on the side surface portion on the support portion side.
  14. 　前記第１アライメントマークは、前記成形体小片の前記第２主面に形成され、
    　前記第１アライメントマークの算術平均面粗さＲａ２´は、前記第２主面の算術平均面粗さＲａ２より小さい、請求項１３に記載の成形体小片。     The first alignment mark is formed on the second main surface of the compact piece,
    The molded body piece according to claim 13, wherein the arithmetic average surface roughness Ra2 'of the first alignment mark is smaller than the arithmetic average surface roughness Ra2 of the second main surface.
  15. 　前記支持部は、前記支持部側側面部の周囲に支持部側基部を有し、
    　前記第２主面における前記支持部側基部と前記支持部側側面部との境界線を含んで形成される面を基準面としたとき、
    　前記支持部側側面部の前記第２主面の任意の点から前記基準面に引いた垂線の長さは、１ｍｍ以下である、請求項１３または１４に記載の成形体小片。     The support part has a support part side base around the support part side surface part,
    When a surface formed including a boundary line between the support portion side base portion and the support portion side surface portion in the second main surface is a reference surface,
    The compact piece according to claim 13 or 14, wherein a length of a perpendicular drawn from an arbitrary point of the second main surface of the side surface portion of the support portion to the reference surface is 1 mm or less.
  16. 　成形体と、前記成形体の周縁部に接続する耳部と、を備え、前記成形体の周縁部に成形体側側面部と耳部側側面部とによる側面部を有する成形体シートをガラス基材から製造する製造方法であって、
    　前記ガラス基材を下金型上に載置し、
    　前記ガラス基材に前記下金型に倣った形状の前記成形体を成形し、
    　前記下金型は、前記ガラス基材と接する上面を有し、
    　前記上面は、前記成形体の前記側面部を付与する表面形状と、位置合わせ用の第１アライメントマークを前記耳部側側面部に付与するマーク形成部と、を備える、成形体シートの製造方法。     A molded body sheet comprising a molded body and an ear portion connected to a peripheral edge portion of the molded body, and having a side surface portion formed by a molded body side side surface portion and an ear portion side surface portion on the peripheral edge portion of the molded body. A manufacturing method manufactured from
    Place the glass substrate on the lower mold,
    Molding the molded body shaped like the lower mold on the glass substrate,
    The lower mold has an upper surface in contact with the glass substrate,
    The said upper surface is provided with the surface shape which provides the said side part of the said molded object, and the mark formation part which provides the 1st alignment mark for alignment to the said ear | edge part side surface part, The manufacturing method of a molded object sheet | seat .
  17. 　前記成形体を成形する際、前記ガラス基材の温度が前記下金型の温度より高い状態において、その差が１００℃未満である、請求項１６に記載の成形体シートの製造方法。 The method for producing a molded body sheet according to claim 16, wherein when the molded body is molded, the difference is less than 100 ° C in a state where the temperature of the glass substrate is higher than the temperature of the lower mold.
  18. 　前記マーク形成部は、前記下金型に形成された窪みである、請求項１６または１７に記載の成形体シートの製造方法。 The said mark formation part is a manufacturing method of the molded object sheet | seat of Claim 16 or 17 which is the hollow formed in the said lower metal mold | die.
  19. 　前記マーク形成部は、前記下金型の前記上面から前記下金型の他の面に貫通形成された孔であり、前記成形体を成形する際、前記ガラス基材と接する前記下金型側の圧力が、前記ガラス基材の反対側の圧力より低い、請求項１６～１８のいずれか一項に記載の成形体シートの製造方法。 The mark forming portion is a hole penetratingly formed from the upper surface of the lower mold to the other surface of the lower mold, and the lower mold side in contact with the glass substrate when forming the molded body The method for producing a molded body sheet according to any one of claims 16 to 18, wherein the pressure of is lower than the pressure on the opposite side of the glass substrate.
PCT/JP2017/041553 2016-11-22 2017-11-17 Molded article sheet, molded article piece, and production method for molded article sheet WO2018097068A1 (en)

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