WO2020129447A1 - Method for forming body by winding glass chopped strand mat, and body formed by winding glass chopped strand mat - Google Patents

Method for forming body by winding glass chopped strand mat, and body formed by winding glass chopped strand mat Download PDF

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Publication number
WO2020129447A1
WO2020129447A1 PCT/JP2019/043589 JP2019043589W WO2020129447A1 WO 2020129447 A1 WO2020129447 A1 WO 2020129447A1 JP 2019043589 W JP2019043589 W JP 2019043589W WO 2020129447 A1 WO2020129447 A1 WO 2020129447A1
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WO
WIPO (PCT)
Prior art keywords
glass chopped
chopped strand
strand mat
winding
winding core
Prior art date
Application number
PCT/JP2019/043589
Other languages
French (fr)
Japanese (ja)
Inventor
次郎 阿部
晃 國友
Original Assignee
日本電気硝子株式会社
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 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN201980070312.0A priority Critical patent/CN112955391A/en
Publication of WO2020129447A1 publication Critical patent/WO2020129447A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes

Definitions

  • the present invention relates to a method for forming a wound body of a glass chopped strand mat and a wound body of a glass chopped strand mat.
  • a glass chopped strand mat formed by molding cut glass fibers (hereinafter referred to as glass chopped strands) into a mat is known.
  • the glass chopped strand mat is usually cut into strips by a slitter device, and then wound on a winding core having paper as a structural material, which is a roll-shaped final product having the winding core as an axis. It becomes a wound body of mat.
  • a wound body of the glass chopped strand mat in order to wind the glass chopped strand mat around the core, a member for joining the core and the glass chopped strand mat is not used.
  • a method is known in which the tip of the glass chopped strand mat is directly wound around the winding core and wound up (see, for example, Patent Document 1).
  • Patent Document 2 has not yet solved problems such as reliable winding performance, damage to the surface of the band-shaped material, winding shape, and winding deviation. Also, by firmly adhering the strip-shaped material to all of the cores, it is possible to securely wind the strip-shaped material, but when the strip-shaped material is pulled out by the strong adhesion, the adhesive portion of the strip-shaped material is broken without being separated from the core. Is a problem.
  • the present invention has been made in view of the problems of the current situation, the glass chopped strand mat can be easily and reliably wound around the core, and damage such as tearing of the glass chopped strand mat can be prevented.
  • An object of the present invention is to provide a method for forming a wound body of a glass chopped strand mat and a wound body of a glass chopped strand mat.
  • a method for forming a wound body of a glass chopped strand mat according to the present invention is a method for forming a wound body of a band-shaped glass chopped strand mat containing glass chopped strands, wherein at least one of the tip end portions of the glass chopped strand mat is By rotating the winding core by contacting the portion along the outer circumferential surface of the winding core, the glass chopped strand mat is provided with a step of forming a wound winding body in a roll shape, on the outer circumferential surface of the winding core.
  • a concavo-convex region is formed, the convex portion of the concavo-convex region has adhesiveness, and the concave portion does not have adhesiveness.
  • the concavo-convex region including the convex portion having adhesiveness and the concave portion having no adhesiveness is provided on the outer peripheral surface of the winding core, and the tip or the vicinity of the tip of the glass chopped strand mat is provided on the winding core.
  • the glass chopped strand mat can be surely wound up by sticking it to the convex part of the uneven region of (3), and the wound body having a good winding shape can be efficiently produced.
  • the uneven region is composed of a convex portion having adhesiveness and a concave portion having no adhesiveness, and in the tip portion of the glass chopped strand mat or in the vicinity of the tip portion, with respect to the irregular area of the winding core, , Since there are sticky parts and non-sticky parts, when pulling out the glass chopped strand mat from the glass chopped strand mat roll and using it up, the drawn glass chopped strand mat is pulled. Also, compared to the case where the tip of the glass chopped strand mat or the entire vicinity of the tip adheres to the core, the glass chopped strand mat easily separates from the core, preventing damage such as tearing. be able to.
  • the convex portion is formed by applying the resin linearly or in dots on the outer peripheral surface of the winding core. ..
  • the resin is a hot melt resin.
  • the hot melt resin is solidified at room temperature after being applied, so that the convex portion can be easily formed.
  • a test base material coated with the hot melt resin is measured according to the tilt method of JIS P 8147 (2010). It is preferable that the sliding inclination angle is 40 degrees or more.
  • the outer peripheral surface of the winding core has a dynamic friction coefficient between the glass chopped strand mat and the glass chopped strand mat defined in JIS K 7125 (1999).
  • Preferably has a non-adhesive surface of 0.15 to 0.35.
  • the tip of the glass chopped strand mat can be brought into contact with the outer peripheral surface of the winding core for stable winding. Therefore, it is possible to suppress the occurrence of wrinkles in the glass chopped strand mat.
  • the basis weight of the glass chopped strand mat is preferably 60 g/m 2 to 150 g/m 2 .
  • the glass chopped strand mat can be stably wound around the core.
  • the basis weight is less than 60 g/m 2
  • the coefficient of friction of the surface of the glass chopped strand mat decreases
  • the rigidity of the glass chopped strand mat decreases, and wrinkles easily occur, so that the core becomes It is difficult to wind it stably.
  • the basis weight is 150 g/m 2 or more
  • the rigidity of the mat is improved, so that it becomes difficult for the glass chopped strand mat M to be wound up following the rotation of the winding core 72, or the winding deviation increases.
  • the winding speed at the time of winding the glass chopped strand mat is preferably 40 m/min to 100 m/min.
  • the glass chopped strand mat can be stably wound around the core. Specifically, if the winding speed of the glass chopped strand mat is less than 40 m/min, the manufacturing efficiency is not improved in mass production, which is not economical. On the other hand, if the winding speed exceeds 100 m/min, even if the glass chopped strand mat comes into contact with the outer peripheral surface of the winding core, the winding may not follow the rotation of the winding core.
  • the winding body of the glass chopped strand mat according to the present invention is a winding body of a glass chopped strand mat having a winding core and a roll-shaped glass chopped strand wound around the winding core.
  • a concave-convex region is formed on the outer peripheral surface of the convex-concave region, the convex portion of the concave-convex region has adhesiveness, and the concave portion does not have adhesiveness.
  • the concavo-convex region is composed of the convex portion having adhesiveness and the concave portion having no adhesiveness, and the concavo-convex portion of the winding core is provided at or near the tip portion of the glass chopped strand mat. Since there are sticky parts and non-sticky parts in the area, when the glass chopped strand mat is pulled out from the glass chopped strand mat roll and used up, the pulled glass chopped strand mat is pulled. However, as compared to the case where the tip of the glass chopped strand mat or the entire vicinity of the tip adheres to the winding core, the glass chopped strand mat easily separates from the winding core, causing damage such as tearing. Can be prevented.
  • the convex portion is a resin formed in a linear shape or a dot shape.
  • the tip or the vicinity of the tip of the glass chopped strand mat is provided by providing an uneven region having adhesiveness on the outer peripheral surface of the core. It becomes possible to reliably wind up the glass chopped strand mat by sticking to the uneven area of, and to efficiently produce a wound body having a good winding shape.
  • the uneven region is composed of the convex portion having adhesiveness and the concave portion having no adhesiveness, when the glass chopped strand mat is pulled out and used up Further, even if the pulled out glass chopped strand mat is pulled, the glass chopped strand mat easily separates from the winding core, so that damage such as tearing can be prevented.
  • the schematic diagram which shows the whole structure of the manufacturing apparatus which manufactures the wound body of the glass chopped strand mat which concerns on one Embodiment of this invention.
  • the perspective view which shows the core which has the uneven
  • the perspective view which shows the winding core which formed the uneven
  • FIG. 6 is an operation explanatory diagram of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a state in which the glass chopped strand mat is being wound up along the guide member.
  • FIG. 6 is an operation explanatory view of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a state in which the glass chopped strand mat makes one round around the winding core. It is an operation explanatory view of the manufacturing apparatus of the glass chopped strand mat according to one embodiment of the present invention, in the direction in which the distance from the winding cylinder is larger than the outer peripheral position of the winding body when the guide member is fully wound. And a diagram showing a state after the evacuation.
  • FIG. 6 is an operation explanatory diagram of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a state in which the glass chopped strand mat is being wound up along the guide member.
  • FIG. 6 is an operation explanatory view of the glass
  • FIG. 6 is an operation explanatory diagram of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a wound body when the glass chopped strand mat is fully wound.
  • corrugated area The figure which shows the example of the shape of an uneven
  • the present invention when the band-shaped glass chopped strand mat slit slit by a slitter device is wound around the core, the tip of the glass chopped strand mat is brought into contact along the outer peripheral surface of the core and is provided on the outer peripheral surface. It is a method of forming a wound body of a glass chopped strand mat by adhering to the uneven area having adhesiveness and winding up in a roll shape.
  • the manufacturing apparatus 1 is an apparatus for manufacturing a glass chopped strand mat M from a glass cake C and using the manufactured glass chopped strand mat M as a wound body R of the glass chopped strand mat M.
  • a conveyor 20, a binder application device 30, a heating furnace 40, a cold pressure roll 50, a winding device 70, and the like are provided.
  • the cutting machine 10 is a device for producing chopped strands S from the glass fibers F wound around the glass cake C, and includes a cutter roller 11 and a rubber roller 12 that are arranged to face each other.
  • the cutting machine 10 includes a rotating cutter roller 11 and a rubber roller 12, and the glass fiber F drawn from the glass cake C is supplied between the cutter roller 11 and the rubber roller 12 so that the glass fiber F is continuous.
  • the glass chopped strands S can be continuously cut to continuously produce the glass chopped strands S.
  • the glass fiber F is cut by the cutting machine 10 into glass chopped strands S having a length of 10 mm or more and 100 mm or less. If the length of the glass chopped strand S is less than 10 mm, a large amount of binder is required for producing the glass chopped strand mat, and as a result, it tends to slip on the outer peripheral surface of the winding core, and thus it is produced.
  • the glass chopped strand mat M is not easily wound around the winding core. If the length of the glass chopped strand S exceeds 100 mm, the surface of the glass chopped strand mat M becomes rough, and as a result, the dynamic friction coefficient becomes large, and the winding tends to be difficult. From the above viewpoints, the length of the glass chopped strand S is preferably in the range of 20 mm to 70 mm, more preferably in the range of 30 mm to 60 mm, and further preferably in the range of 45 mm to 55 mm.
  • the transport conveyor 20 is a device for horizontally transporting the glass chopped strands S ⁇ S... Generated by the cutting machine 10, and includes a first conveyor 21, a second conveyor 22, and a third conveyor 23. Has been done. Further, the transport conveyor 20 is arranged such that, in the transport direction of the glass chopped strands S ⁇ S... (direction of arrow A shown in FIG. 1), the first conveyor 21, the second conveyor 22, and the third conveyor 23 are arranged in this order from the upstream side. It is arranged continuously.
  • Each of the conveyors 21, 22 and 23 is provided with a driving roller and a driven roller, and a conveyor belt B composed of a mesh-shaped endless belt having an opening diameter smaller than the length of the glass chopped strand S is provided on each roller. It is wound to form a conveyor device.
  • the drive rollers of the conveyors 21, 22 and 23 are respectively driven by the motors, and the conveyor belt B is rotated along the rollers.
  • the first conveyor 21 includes a first conveyor belt B1 and is installed below the cutting machine 10.
  • the chamber 13 is arranged on the first conveyor 21, and the glass chopped strands S cut by the cutting machine 10 pass through the chamber 13 and fall onto the first conveyor belt B1.
  • a suction device (not shown) including a suction duct, a blower, and the like is arranged below the first conveyor belt B1 to convey the chopped strands S dispersedly accumulated on the first conveyor belt B1 while sucking the chopped strands S. It is configured to be able to.
  • the second conveyor 22 includes a mesh-shaped second conveyor belt B2 for conveying the chopped strands S.
  • the binder application device 30 is arranged above the second conveyor 22.
  • the binder application device 30 sprays the binder P, which is a resin powder, toward the glass chopped strands S ⁇ S... on the second conveyor belt B2 of the second conveyor 22 to form the glass chopped strands S.
  • thermoplastic resin powder As the kind of the binder P, a thermoplastic resin powder is suitable, and, for example, a powder polyester resin (for example, Nutrac (registered trademark) 514, manufactured by Kao Corporation) can be used.
  • a powder polyester resin for example, Nutrac (registered trademark) 514, manufactured by Kao Corporation
  • Other usable thermoplastic resin powders include resin powders such as nylon, polyethylene, polystyrene, polypropylene and polyvinyl chloride.
  • the glass chopped strands S on the second conveyor 22 are conveyed to the downstream third conveyor 23 with the binder P uniformly attached.
  • a water sprayer (not shown) may be provided on the upstream side of the binder application device 30.
  • the binding agent P easily adheres to the surface of the glass chopped strands S due to the action of the surface tension of water. Higher.
  • the amount of the binder used can be reduced, the slippery surface of the glass chopped strand mat can be suppressed, and the winding becomes easy.
  • the heating furnace 40 is arranged so as to surround a part of the third conveyor belt B3 of the third conveyor 23.
  • the heating furnace 40 heats the glass chopped strands S... S and the binder P, which are loaded on the third conveyor belt B3 of the third conveyor 23 and enter the heating furnace 40, and the binder P It is designed to be meltable.
  • the atmospheric temperature in the heating furnace 40 is appropriately adjusted so as to be a temperature equal to or higher than the melting point of the synthetic resin forming the binder P to be sprayed.
  • a cold pressure roll 50 is arranged on the downstream side of the third conveyor 23.
  • the cold pressure roll 50 includes a pair of rollers 51, 51.
  • the glass chopped strands S ⁇ S... With the binder P melted in the heating furnace 40 are conveyed to the cold pressure roll 50 and pass between the rollers 51 ⁇ 51. At this time, the glass chopped strands S, S... Are cooled and pressed by passing through the cold roll 50, the glass chopped strands S.S. It is molded into a matte glass chopped strand mat M made of the adhesive P.
  • a guide member 60 is arranged downstream of the cold roll 50.
  • the guide member 60 is a plate-shaped member that guides the glass chopped strand mat M to the winding device 70 located diagonally below the cold pressure roll 50.
  • the winding device 70 is arranged on the downstream side of the cold pressure roll 50.
  • the winding device 70 brings at least a part of the front end portion M1 of the glass chopped strand mat M into contact along the outer peripheral surface 72a of the winding core 72, and substantially over the entire width of the outer peripheral surface 72a of the winding core 72 in the width direction.
  • the glass chopped strand mat M is wound into a roll by adhering it to the uneven area A (see FIGS. 2 and 3) having adhesiveness provided in a band shape, and rotating the winding core 72 to form the wound body R.
  • This is an apparatus for realizing the forming process. The details of the uneven area A will be described later.
  • the winding device 70 includes a pair of rolls 71, 71 that are driven and rotated in the same direction, a guide member 73, and a retracting unit (not shown).
  • a winding core 72 is arranged above the upper surface valley between the pair of rolls 71. The winding core 72 is driven to rotate by driving and rotating the pair of rolls 71.
  • the glass chopped strand mat M supplied from one roll 71 side (upstream side) of the pair of rolls 71, 71 is driven and rotated by the pair of rolls 71, 71 and the core 72 is driven. By the rotation, it is wound around the outer peripheral surface 72a of the winding core 72 to form the wound body R (see FIG. 4E).
  • the guide member 73 has a guide surface 73a having a curvature along the outer peripheral surface 72a of the winding core 72 and facing the outer peripheral surface 72a with a space therebetween, and is arranged so as to be movable in a predetermined direction.
  • the guide member 73 When the glass chopped strand mat M is wound, the guide member 73 is arranged so as to face the outer peripheral surface 72a of the winding core 72 with a predetermined gap.
  • the tip M1 of the glass chopped strand mat M is wound around the outer peripheral surface 72a of the winding core 72, so that the tip M1 is wound on the upper layer of the glass chopped strand mat M and the winding core 72. Sandwiched between.
  • the retracting means moves the guide member 73 so that the guide surface 73a is located outside the outer peripheral position of the glass chopped strand mat M when winding is completed. Evacuate and move.
  • the belt-shaped glass chopped strand mat M is conveyed at a predetermined speed by using a conveying means such as a conveyor roller, and as shown in FIG. 4A, the glass chopped strand mat M is driven to rotate in a pair in the same direction.
  • the rollers 71 are supplied to the winding device 70 from one side (the diagonally upper left side in the figure) of the rollers 71.
  • a winding core 72 is rotatably arranged around a central shaft 74 above the upper surface valley between the pair of rolls 71, and the tip M1 of the glass chopped strand mat M is wound around the outer peripheral surface of the roller 71.
  • the winding core 72 is rotated by the driving rotation of the roller 71.
  • the glass chopped strand mat M is wound around the outer circumference of the winding core 72.
  • a guide member 73 having a guide surface 73a is arranged outside the winding core 72 in the radial direction along the winding core 72.
  • the guide surface 73a of the guide member 73 has a curvature along the outer circumference of the winding core 72, and faces the outer circumferential surface 72a of the winding core 72 at a predetermined interval.
  • the tip portion M1 of the glass chopped strand mat M which has entered the gap between the roller 71 and the winding core 72, is fed by the driving rotation of the roll 71 and the driven rotation of the winding core 72, and the outer peripheral surface 72a of the winding core 72 and It enters the space between the guide member 73 and the guide surface 73a.
  • the front end portion M1 that has entered the above-described interval portion advances while being guided (guided) along the guide surface 73a of the guide member 73, and contacts along the outer peripheral surface 72a of the winding core 72.
  • the tip portion M1 of the glass chopped strand mat M or a portion in the vicinity of the tip portion M1 adheres to the substantially spiral convex portion 75 (see FIG. 2) having adhesiveness of the concave and convex area A, and the glass chopped strand mat M is wound around the core. It is wound around the outer peripheral surface 72a of 72.
  • the portion in the vicinity of the tip M1 of the glass chopped strand mat M is a portion in the dimension range from the tip of the glass chopped strand mat M to 300 mm in the longitudinal direction of the glass chopped strand mat M.
  • the tip M1 circulates around the outer peripheral surface 72a of the winding core 72 (one round), and is then sandwiched between the glass chopped strand mat M wound on the upper layer and the winding core 72. ..
  • the guide member 73 is driven by a retracting means (not shown), and the guide surface 73a is when the winding of the glass chopped strand mat M is completed.
  • the core 72 is retracted in the radial direction (S direction) so as to be located outside the outer peripheral position (the outer peripheral position of the wound body when fully wound).
  • S direction the radial direction
  • the guide surface 73a of the guide member 73 smoothly moves so that the tip end portion M1 of the glass chopped strand mat M is surely stacked on the outer peripheral surface 72a of the winding core 72 in the initial winding stage. Allows you to wrap around.
  • the wound body R of the glass chopped strand mat M as shown in FIG. 4E can be obtained.
  • the retreat movement of the guide member 73 may be performed after a predetermined time has passed, in consideration of the rotation speed of the winding core 72 (that is, the winding speed of the glass chopped strand mat M), or on the outer circumference of the winding core 72.
  • a configuration may be adopted in which the thickness of the wound glass chopped strand mat M is detected by a sensor or the like and based on the detected value.
  • the moving distance and the moving speed of the guide surface 73a of the guide member 73 may be set to a value corresponding to the winding speed of the glass chopped strand mat M and the outer diameter of the wound body R when the winding is completed (full winding).
  • the guide surface 73a of the guiding member 73 should not interfere with the winding operation.
  • any material may be used as long as it is a material that can realize mechanical strength sufficient to guide the tip end portion M1 of the glass chopped strand mat M,
  • various plastics, FRPs, metals, woods, and materials such as rubber and glass may be used alone or in combination.
  • plastic and FRP are more preferable because they have appropriate strength, are lightweight, and have high moldability.
  • plastic for example, acrylic, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, nylon, polyacetal, polycarbonate, polyphenylene sulfide, polysulfone, polyetherimide, polyetheretherketone, polyimide, or aromatic polyester may be used.
  • acrylic polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, nylon, polyacetal, polycarbonate, polyphenylene sulfide, polysulfone, polyetherimide, polyetheretherketone, polyimide, or aromatic polyester
  • acrylic polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, nylon, polyacetal, polycarbonate, polyphenylene sulfide, polysulfone, polyetherimide, polyetheretherketone, polyimide, or aromatic polyester may be used.
  • polyetherimide polyetherimide
  • polyetheretherketone polyimide
  • polyimide polyimide
  • the guide surface 73a of the guiding member 73 is concentric with the outer circumference of the winding core 72, and the central axis 74 is the center. If it has an arcuate shape in the angle range of 120° to 270°, the tip M1 of the glass chopped strand mat M can be accurately guided, and the retracting operation of the guiding member 73 is performed.
  • the guide member 73 can be easily moved.
  • the tip M1 of the glass chopped strand mat M is wound around the winding core 72 depending on the degree of flexibility of the glass chopped strand mat M and the winding speed condition. It may not be possible.
  • the angle is set to 120° or more, it is possible to wind without hindrance even when the winding speed is high, and the glass chopped strand mat with poor flexibility is thick. It is possible to cause M to perform an efficient winding operation. If the angle exceeds 270°, it may be difficult to retract the guide member 73.
  • the angle of the guide surface 73a is set within the angle range of 100° to 250°. Is preferred.
  • the distance between the guide surface 73a of the guide member 73 and the outer peripheral surface 72a of the winding core 72 is twice or more the thickness dimension of the glass chopped strand mat M.
  • the glass chopped strand mat M can be smoothly and reliably wound around the winding core 72 without causing defects such as damage on the surface thereof. Therefore, it is preferable.
  • the above distance is the shortest distance between the guide surface 73a of the guide member 73 and the outer circumference of the winding cylinder.
  • the thickness dimension of the glass chopped strand mat M varies depending on the type of glass fiber and its application, but has a thickness of 0.05 mm to 10 mm. Therefore, it is preferable that the above-mentioned interval has a size of about 0.1 mm or more and about 50 mm.
  • the interval is within a range of 2 to 5 times the thickness dimension of the glass chopped strand mat M. To give an example of specific dimensions, the range is from 0.1 mm to 50 mm.
  • the winding device 70 described above it is preferable to wind the glass chopped strand mat M around the winding core 72 at a winding speed of 40 m/min to 100 m/min to form the wound body R of the glass chopped strand mat M. ..
  • the winding speed of the glass chopped strand mat M is less than 40 m/min, the production efficiency will not be improved in mass production, which is not economical.
  • the winding speed exceeds 100 m/min, even if the glass chopped strand mat M comes into contact with the outer peripheral surface 72a of the winding core 72, it will not be wound up following the rotation of the winding core, which is not preferable.
  • the winding speed is preferably in the range of 50 m/min to 90 m/min, more preferably 60 m/min to 90 m/min.
  • the range is minutes, and more preferably 70 m/min to 90 m/min.
  • the composition of the glass fibers forming the above glass chopped strand mat M is not particularly limited as long as it exhibits desired performance, and glass fibers having various compositions can be used.
  • it may be glass fiber having a typical composition such as E glass, D glass, C glass, AR glass, H glass, or S glass, or may have another composition.
  • the winding core 72 is a tubular body around which the glass chopped strand mat M is wound, and is a paper tube having a paper material such as paper tube raw paper, kraft paper, or wrapping paper as a structural material.
  • the winding core 72 is manufactured in a tubular shape by stacking several layers of the above-mentioned base paper on a metal shaft core called a mandrel and rotating the same.
  • wrapping paper for the outer peripheral surface 72a of the winding core 72, wrapping paper, wrapping paper, or other overcoated paper is used for the purpose of finishing the makeup.
  • the core 72 is preferably the above-mentioned paper tube in consideration of economical efficiency, but when the mechanical strength is emphasized, the core 72 is made of a material such as plastic or FRP. Good.
  • the detailed configuration of the winding core 72 will be described in the following description of the forming method.
  • a method of forming a wound body R of a glass chopped strand mat M is a method of forming a wound body R of a band-shaped glass chopped strand mat M containing a glass chopped strand S, which is a glass chopped
  • the glass chopped strand mat M is wound into a roll to form a wound body R.
  • the outer peripheral surface 72a of the winding core 72 is provided with a step of forming, and the convex convex portion 75 having adhesiveness, which is formed by applying a resin to the outer peripheral surface 72a, and does not have adhesiveness. It is characterized by having a concavo-convex region A formed of a concave portion 76 having a concave shape.
  • the outer peripheral surface 72a of the winding core 72 is provided with the concavo-convex area A having the convex portion 75 and the concave portion 76, and the tip M1 of the glass chopped strand mat M or the vicinity of the tip M1 is provided with the concavo-convex area A of the core 72.
  • the glass chopped strand mat M can be surely wound up by sticking it to the convex portion 75, and the wound body R having a good winding shape can be efficiently produced. More specifically, the concavo-convex area A is composed of a convex portion 75 having adhesiveness and a concave portion 76 having no adhesiveness.
  • the pulled glass chopped strand mat M is pulled because there are sticky portions and non-sticky portions. Even when the glass chopped strand mat M is adhered to the core, the glass chopped strand mat M easily separates from the core 72, so that the glass chopped strand mat M may be torn. The occurrence of damage can be prevented.
  • the convex portion 75 is formed by applying a predetermined resin (hot melt resin in the present embodiment) to the outer peripheral surface 72 a of the winding core 72 in a substantially spiral shape. As described above, in the present embodiment, the convex portion 75 is formed by being applied in a substantially spiral shape, so that the uneven area A including the convex portion 75 having adhesiveness and the concave portion 76 having no adhesiveness is wound. It can be easily formed in any region of the outer peripheral surface 72a of the core 72.
  • a predetermined resin hot melt resin in the present embodiment
  • hot melt resin examples include ethylene-vinyl acetate copolymer (EVA)-based, polyamide-based, polyurethane-based, and polyolefin-based hot-melt resins.
  • EVA ethylene-vinyl acetate copolymer
  • polyamide-based polyamide-based
  • polyurethane-based polyurethane-based
  • polyolefin-based hot-melt resins examples of the hot melt resin.
  • a test base material obtained by coating a hot melt resin on the whole and stacking the test base material has a slip inclination angle of 40 measured according to the inclination method of JIS P 8147 (2010). It is preferably at least a degree. That is, when the sliding inclination angle is 40 degrees or more, when the glass chopped strand mat M comes into contact with the outer peripheral surface 72a of the winding core 72, it can be easily caught by the convex portion 75. On the other hand, when the sliding inclination angle is less than 40 degrees, even when the glass chopped strand mat M contacts the outer peripheral surface 72a of the winding core 72, the convex portion 75 is not stably caught.
  • a predetermined hot-melt resin is heated and melted, and is coated on one standard corrugated board of two standard corrugated boards, which is an example of a test base material, at a predetermined coating temperature.
  • the open corrugated board (curing time) 150 seconds later, the standard corrugated board is piled up, and it is kept at room temperature for 1 minute under a predetermined load (for example, 3 kg).
  • a predetermined load for example, 3 kg.
  • the glass chopped strand mat M is wound around the winding core 72, the glass chopped strand mat M does not stick to the convex portion 75 of the winding core 72 in the initial stage of winding, and the glass chopped strand mat M is slackened by idle rotation. Occurrence occurs, and misalignment or wrinkling occurs in order to eliminate the slack, or tearing occurs due to misalignment.
  • the dynamic friction coefficient is preferably 0.15 to 0.35.
  • the coefficient of kinetic friction between the glass chopped strand mat M and the non-adhesive surface of the winding core 72 measured according to the method specified in JIS K 7125 (1999) is 0.15 to 0.35. It is preferable to use the core 72 which is processed and adjusted in advance so as to have a predetermined dynamic friction coefficient so as to be within the range.
  • the material of the surface of the winding core 72 is appropriately changed, or the friction of the surface of the winding core 72 is adjusted.
  • the coefficient of kinetic friction is less than 0.15, the stability when the glass chopped strand mat M is directly wound around the winding core 72 is poor, and even if the glass chopped strand mat M is wound around the winding core 72, it is convex. Since the idle rotation of the winding core 72 before the portion 75 and the glass chopped strand mat M adhere to each other becomes large, the glass chopped strand mat M becomes slack, and in order to eliminate the slack, looseness and wrinkles are likely to occur.
  • the coefficient of dynamic friction exceeds 0.35
  • the slipperiness between the glass chopped strand mat M and the core 72 is extremely reduced, and the tip M1 of the glass chopped strand mat M is attached to the outer peripheral surface 72a (outer side) of the core 72.
  • the winding action is strong at the moment of contact with the front surface), and the winding is started before the protrusion 75 and the glass chopped strand mat M are contacted.
  • the glass chopped strand mat M is rolled up while being distorted, and winding misalignment occurs, the glass chopped strand mat M is wrinkled, the winding shape of the entire wound body R becomes extremely bad, and further, the glass chopped strand mat M. It is easy to damage the surface of M.
  • the dynamic friction coefficient is 0.16 to 0.34.
  • the hot melt resin melted by the discharge member arranged above the core 72 is wound around the core 72. It is ejected in a substantially spiral shape toward the surface 72a and is solidified at room temperature to form the convex portion 75.
  • the concavo-convex area A including the convex portion 75 can be easily formed in an arbitrary area of the outer peripheral surface 72a of the winding core 72.
  • the concave-convex region A is formed in a substantially spiral shape, it is composed of the convex portion 75 having adhesiveness and the concave portion 76 surrounded by or adjacent to the convex portion 75 and having no adhesiveness.
  • the concavo-convex region A is formed in a substantially strip shape having a predetermined width over the entire width of the outer peripheral surface 72a of the winding core 72 in the width direction.
  • the concavo-convex area A is formed on the outer peripheral surfaces 72a at both ends in the radial direction, as shown in FIG.
  • the area in which the uneven area A is provided may be an arbitrary position on the outer peripheral surface 72 a of the winding core 72.
  • the shape of the convex portion 75 is not limited to a substantially spiral shape, and may be a mesh shape or the like in which convex portions having adhesiveness and concave portions having no adhesiveness are alternately arranged.
  • FIGS. 5A to 5G the shapes of the convex portions in the concave-convex region when the winding core is developed in a plane are schematically shown.
  • FIGS. 5A to 5G as the shape of the convex portion 75 forming the concavo-convex area A, for example, in addition to the substantially spiral shape (FIG. 5A) as in the present embodiment, a zigzag shape (FIG. 5B), a curve (curve) is used.
  • Shape (FIG. 5C), dot shape/polka dot shape (FIG. 5D), linear shape (FIG.
  • the shape may be a random shape not limited to. Further, in each of the shapes shown in FIGS. 5A to 5C and FIGS. 5E to 5G, the width and length of the linear protrusion may be changed as appropriate. Further, in the dot shape and the like shown in FIG. 5D, the width dimension of the island-shaped convex portion may be appropriately changed.
  • the substantially spiral shape may be a state in which adjacent spiral rings do not overlap each other as shown in FIG. 2, or adjacent spiral rings overlap as shown in FIG. 3. It may be in a state. Also, a portion in which the sizes of adjacent spiral rings are different may be included.
  • the degree of overlap between adjacent and continuous spiral rings or the size of the rings it is possible to control the existence ratio of the convex portions 75 in the concave-convex area A, thereby increasing the adhesiveness of the concave-convex area A. It can be controlled appropriately. For example, the size of the ring may be increased and the convex portion 75 may be formed on the entire outer peripheral surface of the winding core 72.
  • two outer peripheral areas 72a of the winding core 72 are provided with the two concavo-convex areas A, but at least one concavo-convex area A may be provided.
  • the width (line width) of the linear convex portion 75 is preferably 0.1 mm or more and 5.0 mm or less.
  • the width of the convex portion 75 is less than 0.1 mm, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable.
  • the width of the convex portion 75 exceeds 5.0 mm, the winding action becomes too strong at the moment when the front end portion M1 of the glass chopped strand mat M comes into contact with the surface of the winding core 72, and thus the wound portion remains wound.
  • the winding misalignment, the glass chopped strand mat M may be wrinkled, the winding shape of the entire wound body R may be extremely deteriorated, and the amount of resin to be used increases and the cost increases.
  • the thickness (height) of the linear convex portion 75 is preferably 0.1 mm or more and 2.0 mm or less.
  • the thickness of the convex portion 75 is less than 0.1 mm, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable.
  • the thickness of the convex portion 75 exceeds 2.0 mm, the winding action becomes too strong at the moment when the front end portion M1 of the glass chopped strand mat M comes into contact with the surface of the winding core 72, and thus the winding is performed while being distorted.
  • the winding misalignment the glass chopped strand mat M is wrinkled, the winding shape of the entire wound body R is extremely deteriorated, the amount of resin used is increased, and the cost is increased. Furthermore, the unevenness of the winding core becomes too large, which may damage the surface of the glass chopped strand mat M.
  • the area of one point forming the convex portion 75 is preferably 0.5 mm 2 or more and 15 mm 2 or less. If the area of the convex portion 75 is less than 0.5 mm 2, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable. On the other hand, when the area of the convex portion 75 exceeds 15 mm 2 , the amount of resin used increases and the cost increases.
  • the thickness (height) dimension of the dot-shaped convex portion 75 is preferably 0.1 mm or more and 2.0 mm or less.
  • the thickness of the convex portion 75 is less than 0.1 mm, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable.
  • the thickness of the convex portion 75 exceeds 2.0 mm, the amount of resin used increases and the cost increases. Furthermore, the unevenness of the winding core becomes too large, which may damage the surface of the glass chopped strand mat M.
  • the range occupied by the unevenness area A on the outer peripheral surface 72a of the winding core 72 is as shown in FIG. It may extend over the entire width of the core 72 in the central axis direction, or may be about half the overall width of the winding core 72.
  • the concavo-convex region A may be formed by being divided into a plurality along the width direction.
  • the range occupied by the concavo-convex region A is preferably 60% or less with respect to the entire outer peripheral surface 72a of the winding core 72.
  • the concavo-convex region A is formed at two or more locations in the circumferential direction of the winding core 72, so that the contact opportunities during rotation of the winding core 72 are increased and the glass chopped strand mat M is wound around the winding core 72. 72 enables reliable winding.
  • the outer peripheral surface 72a of the winding core 72 is preferably covered with the same material.
  • the basis weight of the glass chopped strand mat M is preferably 60 g/m 2 or more and 150 g/m 2 or less.
  • the basis weight of the glass chopped strand mat M is more preferably 70 g/m 2 or more and 145 g/m 2 or less.
  • the content of the binder P in the glass chopped strand mat M is preferably 5.0 to 13.0 mass %. That is, if the amount of the binder is less than 5.0% by mass, the effect as the binder cannot be exhibited, and if the amount of the binder exceeds 13.0% by mass, the core 72 easily slips on the outer peripheral surface 72a. Therefore, it becomes difficult to stably wind around the winding core.
  • the outer diameter of the winding core 72 is 50 to 150 mm. That is, when the outer diameter dimension of the winding core 72 is less than 50 mm, the winding efficiency of the glass chopped strand mat M deteriorates, and when the outer diameter dimension of the winding core 72 exceeds 150 mm, the volume of the winding core itself becomes large, and This is because the handling of the body R deteriorates.
  • the wound body R of the glass chopped strand mat M according to the embodiment of the present invention can be formed mainly by the method described above.
  • the winding body R of the glass chopped strand mat M is a winding body R of the glass chopped strand mat M having a winding core 72 and a roll-shaped glass chopped strand wound around the winding core 72.
  • the outer peripheral surface 72a of 72 has a concavo-convex region A composed of a convex convex portion 75 having adhesiveness and a concave portion 76 having no adhesiveness, which are formed by applying a resin to the outer peripheral surface 72a.
  • the winding body R of the glass chopped strand mat M is composed of the convex portion 75 having adhesiveness and the concave portion 76 having no adhesiveness, the winding body R of the glass chopped strand mat M is When the glass chopped strand mat M is pulled out and used up, even if the pulled glass chopped strand mat M is pulled, the glass chopped strand mat M easily separates from the winding core 72, so that damage such as tearing can be prevented. it can.
  • the concavo-convex area A is a resin formed in a substantially spiral shape.
  • the convex portion 75 is formed in a substantially spiral shape, it is possible to integrally provide the uneven region A including the convex portion 75 having adhesiveness and the concave portion 76 having no adhesiveness.
  • Example 1 Spiral polypropylene resin (PP) with a sliding inclination angle of 45 degrees over the entire width of a paper core having a core width of 1.44 m, a core inner diameter of 102 mm, and a core outer diameter of 107 mm. Then, it was applied and cured in the shape of a circle to form an uneven region A.
  • the circumferential width of the winding core of the concavo-convex area A was 30 mm, and two concavo-convex areas A were provided at both ends in the radial direction of the outer peripheral surface of the winding core (see FIG. 2).
  • the coefficient of dynamic friction between the outer peripheral surface of the winding core and the glass chopped strand mat was 0.28.
  • a glass chopped strand mat M having a mat weight of 130 g/m 2 and a width of 1.44 m was wound at a mat winding speed of 40 m/min to prepare a wound body.
  • Example 2 A wound body was produced under the same conditions as in Example 1 except that the mat weight was 107 g/m 2 .
  • Example 3 A wound body was produced under the same conditions as in Example 1 except that the mat weight was 80 g/m 2 .
  • Example 4 A wound body was produced under the same conditions as in Example 2 except that four uneven areas A were provided on the outer peripheral surface of the winding core at equal intervals in the circumferential direction.
  • Example 5 A wound body was produced under the same conditions as in Example 2 except that one uneven region A was provided on the outer peripheral surface of the winding core.
  • Example 6 A wound body was produced under the same conditions as in Example 2 except that the ethylene-vinyl acetate copolymer resin (EVA) having a sliding inclination angle of 35 degrees was applied and cured to form the uneven region A.
  • EVA ethylene-vinyl acetate copolymer resin
  • Example 7 A wound body was produced under the same conditions as in Example 2 except that the uneven region A was formed by applying and curing an ethylene vinyl acetate copolymer resin (EVA) having a slip inclination angle of 30 degrees.
  • EVA ethylene vinyl acetate copolymer resin
  • Example 1 A wound body was produced under the same conditions as in Example 1 except that the uneven area A was not formed.
  • the winding state of the winding body of the glass chopped strand mat (looseness during winding, misalignment with the winding core (winding misalignment), winding performance around the winding core evaluated based on the presence or absence of wrinkles when the mat is pulled out), and A visual evaluation was performed regarding the breakage when the mat was pulled out.
  • Table 1 shows the evaluation results of the wound body in each of the above Examples and Comparative Examples.
  • the method of forming the wound body of the glass chopped strand mat is also applicable to the method of manufacturing the wound body R of the glass chopped strand mat M as described below.
  • a method of manufacturing the wound body R of the glass chopped strand mat M according to the embodiment of the present invention will be described using the manufacturing apparatus 1 described above.
  • the manufacturing method of the glass chopped strand mat M according to the embodiment of the present invention can be realized by the manufacturing apparatus 1.
  • the glass chopped strands S As shown in FIG. 1, in the method of manufacturing the wound body R of the glass chopped strand mat M according to the present embodiment, first, the glass chopped strands S, S... On the first conveyor belt B1 of the first conveyor 21. Is carried out (STEP-1).
  • a step (STEP-2) of applying the binder P to the glass chopped strands S ⁇ S on the second conveyor belt B2 is performed.
  • a step (STEP-3) of heating and melting the binder P on the third conveyor belt B3 is performed.
  • a step (STEP-4) of hardening the binder P by cooling the glass chopped strands S, S... Having the binder P heated and melted is performed.
  • a step of winding the glass chopped strand mat M around the winding core 72 to form the wound body R by the method of manufacturing the wound body R of the glass chopped strand mat M using the winding device 70 described above (STEP- Perform 5).
  • the outer peripheral surface 72a of the winding core 72 is coated with the hot-melt resin in a substantially spiral shape as described above to cure the outer peripheral surface 72a of the winding core 72.
  • the concavo-convex area A for adhering the winding core 72 and the tip M1 of the glass chopped strand mat M is formed on the winding core 72.
  • the tip M1 of the glass chopped strand mat M or its vicinity is adhered to the outer peripheral surface 72a of the winding core 72 and is directly wound around the winding core 72 to form the wound body R reliably. This makes it possible to efficiently produce a wound body R having a good winding shape, which suppresses the occurrence of wrinkling and wrinkling of the mat.
  • the method for forming a wound body of glass chopped strands according to the present invention is to cut a flexible web such as paper, polymer film, cloth, and metal web, and an original web obtained by applying a coating liquid to its support. It can be used to manufacture a wound body (rolled material) by winding a strip-shaped material around a winding core, and for example, various paper coating, adhesive and adhesive materials, cutting and winding processes of electric and electronic component materials, etc. Can be used for.
  • winding device 72 winding core 72a outer peripheral surface 75 convex portion 76 concave portion A concave/convex area S glass chopped strand M glass chopped strand mat M1 tip portion R winding body

Landscapes

  • Laminated Bodies (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

Provided are: a method for forming a body by winding glass chopped strand mat with which it is possible to easily and reliably wind glass chopped strand mat onto a core, and to prevent tearing of the glass chopped strand mat; and a body formed by winding glass chopped strand mat.　This method for forming a wound body R by winding a ribbon-shaped glass chopped strand mat M containing glass chopped strands S comprises a step for forming a wound body R by winding the glass strand chopped mat M into a roll shape, by rotating a core 72 by bringing at least part of the tip M1 of the glass chopped strand mat M in contact along the outer peripheral surface 72a of the core 72. The outer peripheral surface 72a of the core 72 has a region A with irregularities comprising: protrusions 75 having adhesive properties and which are protrusions formed by applying hot-melt resin to the outer peripheral surface 72a; and recesses 76 which do not have adhesive properties.

Description

ガラスチョップドストランドマットの巻回体の形成方法およびガラスチョップドストランドマットの巻回体Method of forming wound body of glass chopped strand mat and wound body of glass chopped strand mat
　本発明は、ガラスチョップドストランドマットの巻回体の形成方法およびガラスチョップドストランドマットの巻回体に関する。 The present invention relates to a method for forming a wound body of a glass chopped strand mat and a wound body of a glass chopped strand mat.
　従来より、切断したガラス繊維（以下、ガラスチョップドストランドと呼ぶ）をマット状に成形してなるガラスチョップドストランドマットが知られている。
　前記ガラスチョップドストランドマットは、通常、スリッター装置により帯状に裁断された後、紙を構造材とする巻芯に巻き取られ、当該巻芯を軸とするロール状の最終製品である、ガラスチョップドストランドマットの巻回体となる。 BACKGROUND ART Conventionally, a glass chopped strand mat formed by molding cut glass fibers (hereinafter referred to as glass chopped strands) into a mat is known.
The glass chopped strand mat is usually cut into strips by a slitter device, and then wound on a winding core having paper as a structural material, which is a roll-shaped final product having the winding core as an axis. It becomes a wound body of mat.
　このようなガラスチョップドストランドマットをガラスチョップドストランドマットの巻回体とする工程においては、巻芯にガラスチョップドストランドマットを巻き付けるために、巻芯とガラスチョップドストランドマットとを接合する部材等を用いずに、巻芯に直接ガラスチョップドストランドマットの先端部を巻き込むようにして巻き取る方法が知られている（例えば、特許文献１を参照）。 In the step of making such a glass chopped strand mat a wound body of the glass chopped strand mat, in order to wind the glass chopped strand mat around the core, a member for joining the core and the glass chopped strand mat is not used. In addition, a method is known in which the tip of the glass chopped strand mat is directly wound around the winding core and wound up (see, for example, Patent Document 1).
　しかしながら、特許文献１に記載のような方法では、ガラスチョップドストランドマットを巻芯へ確実に巻き付けることが難しく、巻き付け初期に巻芯が空回転することでガラスチョップドストランドマットと巻芯との間にずれが生じ、結果としてガラスチョップドストランドマットが巻芯から飛び出した状態で巻き付けられたり、ガラスチョップドストランドマットが破れる問題がある。これらは品質面、生産効率面から大きな技術課題であった。 However, with the method as described in Patent Document 1, it is difficult to reliably wind the glass chopped strand mat around the core, and the idle rotation of the core during the initial stage of winding causes a gap between the glass chopped strand mat and the core. As a result, there is a problem that the glass chopped strand mat is wound in a state where the glass chopped strand mat is protruding from the winding core or the glass chopped strand mat is broken. These were major technical issues in terms of quality and production efficiency.
　このような課題に対して、帯状材料を巻芯に巻きつける方法において、巻芯の全表面を粗面化し、巻芯と帯状材料との静止摩擦係数を所定値以上とする方法が提案されている（例えば、特許文献２を参照）。この方法によれば、帯状材料を巻芯へある程度巻き付けることは可能である。 For such a problem, in a method of winding a strip-shaped material around a winding core, a method has been proposed in which the entire surface of the winding core is roughened and the static friction coefficient between the winding core and the strip-shaped material is a predetermined value or more. (For example, see Patent Document 2). According to this method, it is possible to wind the strip-shaped material around the winding core to some extent.
特開２００９－１５４９９６号公報JP, 2009-154996, A 特開平９－５００９６号公報JP-A-9-50096
　しかしながら、前記特許文献２に示される方法では、確実な巻き付け性、帯状材料表面の損傷、巻姿、巻ズレ等の課題を解決するに至っていない。また、帯状材料を巻芯全てに強固に接着することによって、確実に巻き付けることができるが、強固な接着により帯状材料を引き出す際に帯状材料の接着部が巻芯から離れずに破れるなどの損傷が発生することが問題となる。 However, the method disclosed in Patent Document 2 has not yet solved problems such as reliable winding performance, damage to the surface of the band-shaped material, winding shape, and winding deviation. Also, by firmly adhering the strip-shaped material to all of the cores, it is possible to securely wind the strip-shaped material, but when the strip-shaped material is pulled out by the strong adhesion, the adhesive portion of the strip-shaped material is broken without being separated from the core. Is a problem.
　本発明は、斯かる現状の課題に鑑みてなされたものであり、ガラスチョップドストランドマットを容易、且つ確実に巻芯へ巻き付けることが可能で、ガラスチョップドストランドマットの破れ等の損傷を防ぐことができるガラスチョップドストランドマットの巻回体の形成方法およびガラスチョップドストランドマットの巻回体を提供することを課題とする。 The present invention has been made in view of the problems of the current situation, the glass chopped strand mat can be easily and reliably wound around the core, and damage such as tearing of the glass chopped strand mat can be prevented. An object of the present invention is to provide a method for forming a wound body of a glass chopped strand mat and a wound body of a glass chopped strand mat.
　本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。 The problem to be solved by the present invention is as described above. Next, the means for solving this problem will be described.
　本発明に係るガラスチョップドストランドマットの巻回体の形成方法は、ガラスチョップドストランドを含む帯状のガラスチョップドストランドマットの巻回体の形成方法であって、前記ガラスチョップドストランドマットの先端部の少なくとも一部を巻芯の外周面に沿って接触させて前記巻芯を回転させることで、前記ガラスチョップドストランドマットをロール状に巻き取り巻回体を形成する工程を備え、前記巻芯の外周面に凹凸領域が形成され、前記凹凸領域の凸部は粘着性を有し、前記凹部は粘着性を有さないことを特徴とする。 A method for forming a wound body of a glass chopped strand mat according to the present invention is a method for forming a wound body of a band-shaped glass chopped strand mat containing glass chopped strands, wherein at least one of the tip end portions of the glass chopped strand mat is By rotating the winding core by contacting the portion along the outer circumferential surface of the winding core, the glass chopped strand mat is provided with a step of forming a wound winding body in a roll shape, on the outer circumferential surface of the winding core. A concavo-convex region is formed, the convex portion of the concavo-convex region has adhesiveness, and the concave portion does not have adhesiveness.
　このような構成によれば、巻芯の外周面に、粘着性を有する凸部及び粘着性を有さない凹部からなる凹凸領域を設け、ガラスチョップドストランドマットの先端部もしくは先端部近傍を巻芯の凹凸領域の凸部に粘着させることにより、ガラスチョップドストランドマットを確実に巻き取ることが可能となり、巻姿が良好な巻回体を効率的に生産できる。詳述すると、凹凸領域が粘着性を有する凸部と、粘着性を有しない凹部とで構成されており、ガラスチョップドストランドマットの先端部もしくは先端部近傍には、巻き芯の凹凸領域に対して、粘着している部分と粘着していない部分が存在することになるため、ガラスチョップドストランドマットの巻回体からガラスチョップドストランドマットを引き出して使い切る際に、引き出したガラスチョップドストランドマットが引っ張られても、ガラスチョップドストランドマットの先端部もしくは先端部近傍の全体が巻き芯に粘着している場合と比較して、ガラスチョップドストランドマットが巻芯から容易に離れるため、破れ等の損傷の発生を防ぐことができる。 According to such a configuration, the concavo-convex region including the convex portion having adhesiveness and the concave portion having no adhesiveness is provided on the outer peripheral surface of the winding core, and the tip or the vicinity of the tip of the glass chopped strand mat is provided on the winding core. The glass chopped strand mat can be surely wound up by sticking it to the convex part of the uneven region of (3), and the wound body having a good winding shape can be efficiently produced. To be more specific, the uneven region is composed of a convex portion having adhesiveness and a concave portion having no adhesiveness, and in the tip portion of the glass chopped strand mat or in the vicinity of the tip portion, with respect to the irregular area of the winding core, , Since there are sticky parts and non-sticky parts, when pulling out the glass chopped strand mat from the glass chopped strand mat roll and using it up, the drawn glass chopped strand mat is pulled. Also, compared to the case where the tip of the glass chopped strand mat or the entire vicinity of the tip adheres to the core, the glass chopped strand mat easily separates from the core, preventing damage such as tearing. be able to.
　また、本発明に係るガラスチョップドストランドマットの巻回体の形成方法において、前記凸部は、前記巻芯の外周面に前記樹脂を線状または点状に塗布することで形成されることが好ましい。 Further, in the method for forming a wound body of a glass chopped strand mat according to the present invention, it is preferable that the convex portion is formed by applying the resin linearly or in dots on the outer peripheral surface of the winding core. ..
　これにより、粘着性を有する凸部と粘着性を有しない凹部とからなる凹凸領域を巻芯の外周面の任意の領域に容易に形成することができるとともに、凸部を形成する樹脂の使用量を極力減らすことができる。 This makes it possible to easily form a concavo-convex region composed of a convex portion having tackiness and a concave portion having no tackiness on any region of the outer peripheral surface of the winding core, and the amount of resin used for forming the convex portion. Can be reduced as much as possible.
　また、本発明に係るガラスチョップドストランドマットの巻回体の形成方法において、前記樹脂は、ホットメルト樹脂であることが好ましい。 Further, in the method for forming a wound body of a glass chopped strand mat according to the present invention, it is preferable that the resin is a hot melt resin.
　これにより、ホットメルト樹脂が塗布後常温になることより固化するため、凸部を容易に形成することができる。 With this, the hot melt resin is solidified at room temperature after being applied, so that the convex portion can be easily formed.
　また、本発明に係るガラスチョップドストランドマットの巻回体の形成方法において、前記ホットメルト樹脂を塗工して重ねた試験基材は、ＪＩＳ　Ｐ　８１４７（２０１０年）の傾斜法に準拠して測定された滑り傾斜角が４０度以上であることが好ましい。 In addition, in the method for forming a wound body of a glass chopped strand mat according to the present invention, a test base material coated with the hot melt resin is measured according to the tilt method of JIS P 8147 (2010). It is preferable that the sliding inclination angle is 40 degrees or more.
　即ち、滑り傾斜角が４０度以上である場合、ガラスチョップドストランドマットが巻芯の外周面に接触した際に、凸部に引っ掛かり易くすることができる。 That is, when the sliding inclination angle is 40 degrees or more, when the glass chopped strand mat comes into contact with the outer peripheral surface of the winding core, the convex portion can be easily caught.
　また、本発明に係るガラスチョップドストランドマットの巻回体の形成方法において、前記巻芯の外周面は、前記ガラスチョップドストランドマットとの間における、ＪＩＳ　Ｋ　７１２５（１９９９年）に規定された動摩擦係数が、０．１５～０．３５である非粘着面を有することが好ましい。 Further, in the method for forming a wound body of a glass chopped strand mat according to the present invention, the outer peripheral surface of the winding core has a dynamic friction coefficient between the glass chopped strand mat and the glass chopped strand mat defined in JIS K 7125 (1999). Preferably has a non-adhesive surface of 0.15 to 0.35.
　即ち、動摩擦係数が０．１５～０．３５である場合、ガラスチョップドストランドマットの先端部を巻芯の外周面に接触させて安定して巻き取ることができる。そのため、ガラスチョップドストランドマットにしわが発生することを抑制できる。 That is, when the coefficient of kinetic friction is 0.15 to 0.35, the tip of the glass chopped strand mat can be brought into contact with the outer peripheral surface of the winding core for stable winding. Therefore, it is possible to suppress the occurrence of wrinkles in the glass chopped strand mat.
　また、本発明に係るガラスチョップドストランドマットの巻回体の形成方法において、前記ガラスチョップドストランドマットの目付は、６０ｇ／ｍ２～１５０ｇ／ｍ２であることが好ましい。 Further, in the method for forming a wound body of a glass chopped strand mat according to the present invention, the basis weight of the glass chopped strand mat is preferably 60 g/m 2 to 150 g/m 2 .
　これにより、ガラスチョップドストランドマットを巻芯に安定して巻き取ることができる。具体的には、目付が６０ｇ／ｍ２未満である場合、ガラスチョップドストランドマットの表面の摩擦係数が小さくなるとともに、ガラスチョップドストランドマットの剛性が低下し、しわが入りやすくなるため、巻芯に安定して巻き取ることが難しい。
　一方、目付が１５０ｇ／ｍ２以上であると、マットの剛性が向上するため、ガラスチョップドストランドマットＭが巻芯７２の回転に追従して巻き込まれ難くなったり、巻ズレが増加する。 Thereby, the glass chopped strand mat can be stably wound around the core. Specifically, when the basis weight is less than 60 g/m 2 , the coefficient of friction of the surface of the glass chopped strand mat decreases, the rigidity of the glass chopped strand mat decreases, and wrinkles easily occur, so that the core becomes It is difficult to wind it stably.
On the other hand, when the basis weight is 150 g/m 2 or more, the rigidity of the mat is improved, so that it becomes difficult for the glass chopped strand mat M to be wound up following the rotation of the winding core 72, or the winding deviation increases.
　また、本発明に係るガラスチョップドストランドマットの巻回体の形成方法において、前記ガラスチョップドストランドマットの巻き取る際の巻き付け速度は、４０ｍ／分～１００ｍ／分であることが好ましい。 Further, in the method for forming a wound body of the glass chopped strand mat according to the present invention, the winding speed at the time of winding the glass chopped strand mat is preferably 40 m/min to 100 m/min.
　これにより、ガラスチョップドストランドマットを巻芯に安定して巻き取ることができる。具体的には、ガラスチョップドストランドマットの巻き付け速度が４０ｍ／分未満であると、大量生産を行う上で製造効率が向上せず、経済的ではない。一方、巻き付け速度が１００ｍ／分を超えると、巻芯の外周面にガラスチョップドストランドマットが接触しても巻芯の回転に追従して巻き込まれない場合がある。 With this, the glass chopped strand mat can be stably wound around the core. Specifically, if the winding speed of the glass chopped strand mat is less than 40 m/min, the manufacturing efficiency is not improved in mass production, which is not economical. On the other hand, if the winding speed exceeds 100 m/min, even if the glass chopped strand mat comes into contact with the outer peripheral surface of the winding core, the winding may not follow the rotation of the winding core.
　本発明に係るガラスチョップドストランドマットの巻回体は、巻芯と、前記巻芯に巻回されたロール状のガラスチョップドストランドとを有するガラスチョップドストランドマットの巻回体であって、前記巻芯の外周面には凹凸領域が形成され、前記凹凸領域の凸部は粘着性を有し、前記凹部は粘着性を有さないことを特徴とする。 The winding body of the glass chopped strand mat according to the present invention is a winding body of a glass chopped strand mat having a winding core and a roll-shaped glass chopped strand wound around the winding core. A concave-convex region is formed on the outer peripheral surface of the convex-concave region, the convex portion of the concave-convex region has adhesiveness, and the concave portion does not have adhesiveness.
　このような構成によれば、凹凸領域が粘着性を有する凸部と、粘着性を有しない凹部とで構成されており、ガラスチョップドストランドマットの先端部もしくは先端部近傍には、巻き芯の凹凸領域に対して、粘着している部分と粘着していない部分が存在するため、ガラスチョップドストランドマットの巻回体からガラスチョップドストランドマットを引き出して使い切る際に、引き出したガラスチョップドストランドマットが引っ張られても、ガラスチョップドストランドマットの先端部もしくは先端部近傍の全体が巻き芯に粘着している場合と比較して、ガラスチョップドストランドマットが巻芯から容易に離れるため、破れ等の損傷の発生を防ぐことができる。 According to such a configuration, the concavo-convex region is composed of the convex portion having adhesiveness and the concave portion having no adhesiveness, and the concavo-convex portion of the winding core is provided at or near the tip portion of the glass chopped strand mat. Since there are sticky parts and non-sticky parts in the area, when the glass chopped strand mat is pulled out from the glass chopped strand mat roll and used up, the pulled glass chopped strand mat is pulled. However, as compared to the case where the tip of the glass chopped strand mat or the entire vicinity of the tip adheres to the winding core, the glass chopped strand mat easily separates from the winding core, causing damage such as tearing. Can be prevented.
　また、本発明に係るガラスチョップドストランドマットの巻回体において、前記凸部は、線状または点状に形成された樹脂であることが好ましい。 Further, in the wound body of the glass chopped strand mat according to the present invention, it is preferable that the convex portion is a resin formed in a linear shape or a dot shape.
　これにより、粘着性を有する凸部と粘着性を有しない凹部とからなる凹凸領域を、容易に、かつ凸部を形成する樹脂の使用量を極力減らして一体的に設けることができる。 With this, it is possible to easily provide an uneven region composed of a convex portion having adhesiveness and a concave portion having no adhesiveness, and easily and integrally, by reducing the amount of the resin forming the convex portion as much as possible.
　本発明の効果として、以下に示すような効果を奏する。 The effects of the present invention are as follows.
　本発明に係るガラスチョップドストランドマットの巻回体の形成方法によれば、巻芯の外周面に粘着性を有する凹凸領域を設けることで、ガラスチョップドストランドマットの先端部もしくは先端部近傍を巻芯の凹凸領域に粘着し、ガラスチョップドストランドマットを確実に巻き取ることが可能となり、巻姿が良好な巻回体を効率的に生産できる。 According to the method for forming a wound body of a glass chopped strand mat according to the present invention, the tip or the vicinity of the tip of the glass chopped strand mat is provided by providing an uneven region having adhesiveness on the outer peripheral surface of the core. It becomes possible to reliably wind up the glass chopped strand mat by sticking to the uneven area of, and to efficiently produce a wound body having a good winding shape.
　また、本発明に係るガラスチョップドストランドマットの巻回体によれば、凹凸領域が粘着性を有する凸部と粘着性を有しない凹部で構成されているため、ガラスチョップドストランドマットを引き出して使い切る際に、引き出したガラスチョップドストランドマットが引っ張られても、ガラスチョップドストランドマットが巻芯から容易に離れるため、破れ等の損傷の発生を防ぐことができる。 Further, according to the wound body of the glass chopped strand mat according to the present invention, since the uneven region is composed of the convex portion having adhesiveness and the concave portion having no adhesiveness, when the glass chopped strand mat is pulled out and used up Further, even if the pulled out glass chopped strand mat is pulled, the glass chopped strand mat easily separates from the winding core, so that damage such as tearing can be prevented.
本発明の一実施形態に係るガラスチョップドストランドマットの巻回体を製造する製造装置の全体構成を示す模式図。The schematic diagram which shows the whole structure of the manufacturing apparatus which manufactures the wound body of the glass chopped strand mat which concerns on one Embodiment of this invention. ホットメルト樹脂を外周面に塗布硬化させて形成した凹凸領域を有する巻芯を示す斜視図。The perspective view which shows the core which has the uneven|corrugated area formed by apply|coating and hardening the hot-melt resin on the outer peripheral surface. 凹凸領域を外周面の径方向両端に形成した巻芯を示す斜視図。The perspective view which shows the winding core which formed the uneven|corrugated region in the radial direction both ends of the outer peripheral surface. 本発明の一実施形態に係るガラスチョップドストランドマットの製造装置の動作説明図であって、巻き付け初期を示す図。It is an operation explanatory view of the manufacturing device of the glass chopped strand mat concerning one embodiment of the present invention, and is a figure showing the beginning of winding. 本発明の一実施形態に係るガラスチョップドストランドマットの製造装置の動作説明図であって、ガラスチョップドストランドマットが誘導部材に沿って巻き取られつつある状態を示す図。FIG. 6 is an operation explanatory diagram of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a state in which the glass chopped strand mat is being wound up along the guide member. 本発明の一実施形態に係るガラスチョップドストランドマットの製造装置の動作説明図であって、ガラスチョップドストランドマットが巻芯を一周した状態を示す図。FIG. 6 is an operation explanatory view of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a state in which the glass chopped strand mat makes one round around the winding core. 本発明の一実施形態に係るガラスチョップドストランドマットの製造装置の動作説明図であって、誘導部材が満巻き時の巻回体の外周位置よりも巻き取り筒体からの距離が大きくなる方向へと退避した後の状態を示す図。It is an operation explanatory view of the manufacturing apparatus of the glass chopped strand mat according to one embodiment of the present invention, in the direction in which the distance from the winding cylinder is larger than the outer peripheral position of the winding body when the guide member is fully wound. And a diagram showing a state after the evacuation. 本発明の一実施形態に係るガラスチョップドストランドマットの製造装置の動作説明図であって、ガラスチョップドストランドマットの満巻き時である巻回体を示す図。FIG. 6 is an operation explanatory diagram of the glass chopped strand mat manufacturing apparatus according to the embodiment of the present invention, and is a diagram showing a wound body when the glass chopped strand mat is fully wound. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area. 凹凸領域の形状の例を示す図。The figure which shows the example of the shape of an uneven|corrugated area.
　次に、発明の実施の形態を説明する。
　本発明は、スリッター装置によりスリット裁断した帯状のガラスチョップドストランドマットを巻芯に巻き付ける際に、ガラスチョップドストランドマットの先端部を巻芯の外周面に沿って接触させるとともに当該外周面に設けた所定の粘着性を有する凹凸領域に粘着し、ロール状に巻き取ってガラスチョップドストランドマットの巻回体を形成する方法である。 Next, an embodiment of the invention will be described.
The present invention, when the band-shaped glass chopped strand mat slit slit by a slitter device is wound around the core, the tip of the glass chopped strand mat is brought into contact along the outer peripheral surface of the core and is provided on the outer peripheral surface. It is a method of forming a wound body of a glass chopped strand mat by adhering to the uneven area having adhesiveness and winding up in a roll shape.
　［製造装置１の全体構成］
　先ず、本発明の一実施形態に係るガラスチョップドストランドマットの巻回体の形成方法を具現化する巻取装置７０を備えた、ガラスチョップドストランドマットＭの巻回体Ｒの製造装置１の全体構成について、図１を用いて説明する。
　製造装置１は、ガラスケーキＣからガラスチョップドストランドマットＭを製造し、製造されたガラスチョップドストランドマットＭをガラスチョップドストランドマットＭの巻回体Ｒとするための装置であり、切断機１０、搬送コンベア２０、結着剤付与装置３０、加熱炉４０、冷圧ロール５０、及び巻取装置７０等を備える。 [Overall Configuration of Manufacturing Apparatus 1]
First, the overall configuration of the manufacturing apparatus 1 for the wound body R of the glass chopped strand mat M, including the winding device 70 that embodies the method for forming the wound body of the glass chopped strand mat according to the embodiment of the present invention. This will be described with reference to FIG.
The manufacturing apparatus 1 is an apparatus for manufacturing a glass chopped strand mat M from a glass cake C and using the manufactured glass chopped strand mat M as a wound body R of the glass chopped strand mat M. A conveyor 20, a binder application device 30, a heating furnace 40, a cold pressure roll 50, a winding device 70, and the like are provided.
　切断機１０は、ガラスケーキＣに巻回されているガラス繊維ＦからチョップドストランドＳを生成するための装置であり、互いに対向して配置されるカッターローラ１１とゴムローラ１２を備える。 The cutting machine 10 is a device for producing chopped strands S from the glass fibers F wound around the glass cake C, and includes a cutter roller 11 and a rubber roller 12 that are arranged to face each other.
　そして、切断機１０は、回転しているカッターローラ１１とゴムローラ１２を備え、カッターローラ１１とゴムローラ１２の間にガラスケーキＣから引き出されたガラス繊維Ｆを供給することで、ガラス繊維Ｆを連続的に切断し、ガラスチョップドストランドＳを連続生成することができるように構成されている。 Then, the cutting machine 10 includes a rotating cutter roller 11 and a rubber roller 12, and the glass fiber F drawn from the glass cake C is supplied between the cutter roller 11 and the rubber roller 12 so that the glass fiber F is continuous. The glass chopped strands S can be continuously cut to continuously produce the glass chopped strands S.
　ガラス繊維Ｆは、切断機１０により、長さが１０ｍｍ以上、１００ｍｍ以下のガラスチョップドストランドＳに切断される。ガラスチョップドストランドＳの長さが１０ｍｍ未満であると、ガラスチョップドストランドマットを製造するために多くの結着剤が必要となり、その結果、巻芯の外周面に対して滑り易くなるため、製造されたガラスチョップドストランドマットＭを安定して巻芯へ巻き付けにくくなる。ガラスチョップドストランドＳの長さが１００ｍｍを超えると、ガラスチョップドストランドマットＭの表面が粗くなり、結果として動摩擦係数が大きくなり、巻き付けが困難となりやすい。
　以上の観点から、ガラスチョップドストランドＳの長さは、２０ｍｍ～７０ｍｍの範囲とするのが好ましく、さらに好ましくは３０ｍｍ～６０ｍｍ範囲とすることであり、一層好ましくは４５ｍｍ～５５ｍｍとすることである。 The glass fiber F is cut by the cutting machine 10 into glass chopped strands S having a length of 10 mm or more and 100 mm or less. If the length of the glass chopped strand S is less than 10 mm, a large amount of binder is required for producing the glass chopped strand mat, and as a result, it tends to slip on the outer peripheral surface of the winding core, and thus it is produced. The glass chopped strand mat M is not easily wound around the winding core. If the length of the glass chopped strand S exceeds 100 mm, the surface of the glass chopped strand mat M becomes rough, and as a result, the dynamic friction coefficient becomes large, and the winding tends to be difficult.
From the above viewpoints, the length of the glass chopped strand S is preferably in the range of 20 mm to 70 mm, more preferably in the range of 30 mm to 60 mm, and further preferably in the range of 45 mm to 55 mm.
　搬送コンベア２０は、切断機１０で生成されたガラスチョップドストランドＳ・Ｓ・・・を水平方向に搬送するための装置であり、第一コンベア２１、第二コンベア２２、及び第三コンベア２３によって構成されている。
　また、搬送コンベア２０は、ガラスチョップドストランドＳ・Ｓ・・・の搬送方向（図１に示す矢印Ａの方向）において、上流側から第一コンベア２１、第二コンベア２２、第三コンベア２３の順で連続して配置されている。 The transport conveyor 20 is a device for horizontally transporting the glass chopped strands S·S... Generated by the cutting machine 10, and includes a first conveyor 21, a second conveyor 22, and a third conveyor 23. Has been done.
Further, the transport conveyor 20 is arranged such that, in the transport direction of the glass chopped strands S·S... (direction of arrow A shown in FIG. 1), the first conveyor 21, the second conveyor 22, and the third conveyor 23 are arranged in this order from the upstream side. It is arranged continuously.
　各コンベア２１・２２・２３は、それぞれ駆動ローラと従動ローラを備えており、各ローラに、ガラスチョップドストランドＳの長さよりも小さい開口径を有するメッシュ状の無端ベルトによって構成された搬送ベルトＢが巻回されて、コンベア装置を構成している。 Each of the conveyors 21, 22 and 23 is provided with a driving roller and a driven roller, and a conveyor belt B composed of a mesh-shaped endless belt having an opening diameter smaller than the length of the glass chopped strand S is provided on each roller. It is wound to form a conveyor device.
　そして、各コンベア２１・２２・２３は、駆動ローラがモーターによって夫々駆動されて、搬送ベルトＢを各ローラに沿って回転駆動する構成となっている。 The drive rollers of the conveyors 21, 22 and 23 are respectively driven by the motors, and the conveyor belt B is rotated along the rollers.
　第一コンベア２１は、第一搬送ベルトＢ１を備えており、切断機１０の下方に設置されている。
　また、第一コンベア２１上には、チャンバー１３が配置され、切断機１０によって切断されたガラスチョップドストランドＳは、チャンバー１３内を通って第一搬送ベルトＢ１上に落下する。 The first conveyor 21 includes a first conveyor belt B1 and is installed below the cutting machine 10.
In addition, the chamber 13 is arranged on the first conveyor 21, and the glass chopped strands S cut by the cutting machine 10 pass through the chamber 13 and fall onto the first conveyor belt B1.
　なお、第一搬送ベルトＢ１の下方には、吸引ダクトやブロア等からなる図示せぬ吸引装置が配置されており、第一搬送ベルトＢ１上に分散堆積されたチョップドストランドＳを吸引しつつ、搬送することができるように構成している。 A suction device (not shown) including a suction duct, a blower, and the like is arranged below the first conveyor belt B1 to convey the chopped strands S dispersedly accumulated on the first conveyor belt B1 while sucking the chopped strands S. It is configured to be able to.
　第二コンベア２２は、チョップドストランドＳを搬送するためのメッシュ状の第二搬送ベルトＢ２を備えている。 The second conveyor 22 includes a mesh-shaped second conveyor belt B2 for conveying the chopped strands S.
　ここで、第二コンベア２２の上方には、結着剤付与装置３０が配置されている。
　結着剤付与装置３０は、樹脂粉末である結着剤Ｐを、第二コンベア２２の第二搬送ベルトＢ２上のガラスチョップドストランドＳ・Ｓ・・・に向けて散布して、ガラスチョップドストランドＳ・Ｓ・・・に結着剤Ｐを付着させる装置である。 Here, the binder application device 30 is arranged above the second conveyor 22.
The binder application device 30 sprays the binder P, which is a resin powder, toward the glass chopped strands S·S... on the second conveyor belt B2 of the second conveyor 22 to form the glass chopped strands S. A device for attaching the binder P to S...
　結着剤Ｐの種類としては、熱可塑性樹脂粉末が好適であり、例えば、粉末ポリエステル樹脂（例えば、ニュートラック（商標登録）５１４、花王株式会社製など）を使用することができる。
　その他、使用可能な熱可塑性樹脂粉末として、ナイロン、ポリエチレン、ポリスチレン、ポリプロピレン、ポリ塩化ビニル等の樹脂粉末が挙げられる。 As the kind of the binder P, a thermoplastic resin powder is suitable, and, for example, a powder polyester resin (for example, Nutrac (registered trademark) 514, manufactured by Kao Corporation) can be used.
Other usable thermoplastic resin powders include resin powders such as nylon, polyethylene, polystyrene, polypropylene and polyvinyl chloride.
　そして、第二コンベア２２上のガラスチョップドストランドＳは、結着剤Ｐが均一に付着した状態で、下流の第三コンベア２３に搬送される。 Then, the glass chopped strands S on the second conveyor 22 are conveyed to the downstream third conveyor 23 with the binder P uniformly attached.
　なお、結着剤付与装置３０の上流側に、水噴霧機（図示せず）を設けてもよい。
　ガラスチョップドストランドＳが予め水で湿潤状態にされていると、水の表面張力の作用によりガラスチョップドストランドＳの表面に結着剤Ｐが付着し易くなるため、ガラスチョップドストランドＳ同士の接着効果がより高まる。その結果、結着剤の使用量を減らすことができ、ガラスチョップドストランドマットの表面が滑りやすくなることを抑制でき、巻取りが容易となる。 A water sprayer (not shown) may be provided on the upstream side of the binder application device 30.
When the glass chopped strands S have been previously wetted with water, the binding agent P easily adheres to the surface of the glass chopped strands S due to the action of the surface tension of water. Higher. As a result, the amount of the binder used can be reduced, the slippery surface of the glass chopped strand mat can be suppressed, and the winding becomes easy.
　また、第三コンベア２３の第三搬送ベルトＢ３の一部を囲い込むように加熱炉４０が配置されている。
　加熱炉４０は、第三コンベア２３の第三搬送ベルトＢ３に積載されて加熱炉４０内に進入するガラスチョップドストランドＳ・Ｓ・・・及び結着剤Ｐを加熱して、結着剤Ｐを溶融可能なように構成されている。 Further, the heating furnace 40 is arranged so as to surround a part of the third conveyor belt B3 of the third conveyor 23.
The heating furnace 40 heats the glass chopped strands S... S and the binder P, which are loaded on the third conveyor belt B3 of the third conveyor 23 and enter the heating furnace 40, and the binder P It is designed to be meltable.
　なお、加熱炉４０内の雰囲気温度は散布する結着剤Ｐを構成する合成樹脂の融点以上の温度となるように適宜調整される。 The atmospheric temperature in the heating furnace 40 is appropriately adjusted so as to be a temperature equal to or higher than the melting point of the synthetic resin forming the binder P to be sprayed.
　第三コンベア２３の下流側には冷圧ロール５０が配置されている。冷圧ロール５０は、一対のローラ５１・５１で構成される。 A cold pressure roll 50 is arranged on the downstream side of the third conveyor 23. The cold pressure roll 50 includes a pair of rollers 51, 51.
　そして、加熱炉４０で溶融された結着剤Ｐが付着したガラスチョップドストランドＳ・Ｓ・・・は、冷圧ロール５０に搬送され、ローラ５１・５１間を通過する。
　この時、ガラスチョップドストランドＳ・Ｓ・・・は、冷圧ロール５０を通過することで冷却、プレスされ、ガラスチョップドストランドＳ・Ｓ・・・同士が結着されて、ガラスチョップドストランドＳと結着剤Ｐからなるマット状のガラスチョップドストランドマットＭに成形される。 Then, the glass chopped strands S·S... With the binder P melted in the heating furnace 40 are conveyed to the cold pressure roll 50 and pass between the rollers 51·51.
At this time, the glass chopped strands S, S... Are cooled and pressed by passing through the cold roll 50, the glass chopped strands S.S. It is molded into a matte glass chopped strand mat M made of the adhesive P.
　冷圧ロール５０の下流側に案内部材６０が配置されている。
　案内部材６０は、ガラスチョップドストランドマットＭを冷圧ロール５０の斜め下方に位置する巻取装置７０に案内する板状の部材である。 A guide member 60 is arranged downstream of the cold roll 50.
The guide member 60 is a plate-shaped member that guides the glass chopped strand mat M to the winding device 70 located diagonally below the cold pressure roll 50.
　冷圧ロール５０の下流側に巻取装置７０が配置されている。
　巻取装置７０は、ガラスチョップドストランドマットＭの先端部Ｍ１の少なくとも一部を巻芯７２の外周面７２ａに沿って接触させるとともに巻芯７２の外周面７２ａの幅方向の全幅に亘って、略帯状に設けた粘着性を有する凹凸領域Ａ（図２および図３参照）に粘着させて、巻芯７２を回転させることで、ガラスチョップドストランドマットＭをロール状に巻き取って巻回体Ｒを形成する工程を実現するための装置である。
　なお、上記凹凸領域Ａの詳細については後述する。 The winding device 70 is arranged on the downstream side of the cold pressure roll 50.
The winding device 70 brings at least a part of the front end portion M1 of the glass chopped strand mat M into contact along the outer peripheral surface 72a of the winding core 72, and substantially over the entire width of the outer peripheral surface 72a of the winding core 72 in the width direction. The glass chopped strand mat M is wound into a roll by adhering it to the uneven area A (see FIGS. 2 and 3) having adhesiveness provided in a band shape, and rotating the winding core 72 to form the wound body R. This is an apparatus for realizing the forming process.
The details of the uneven area A will be described later.
　巻取装置７０は、同方向に駆動回転する一対のロール７１・７１と、誘導部材７３と、図示しない退避手段とを備える。一対のロール７１・７１間の上面谷部の上方には、巻芯７２が配置される。巻芯７２は、一対のロール７１・７１が駆動回転することにより、従動回転する。 The winding device 70 includes a pair of rolls 71, 71 that are driven and rotated in the same direction, a guide member 73, and a retracting unit (not shown). A winding core 72 is arranged above the upper surface valley between the pair of rolls 71. The winding core 72 is driven to rotate by driving and rotating the pair of rolls 71.
　巻取装置７０は、一対のロール７１・７１のうち一方のロール７１の側（上流側）から供給されるガラスチョップドストランドマットＭを、一対のロール７１・７１の駆動回転と巻芯７２の従動回転により、巻芯７２の外周面７２ａに巻き付けて巻回体Ｒ（図４Ｅを参照）を形成する。 In the winding device 70, the glass chopped strand mat M supplied from one roll 71 side (upstream side) of the pair of rolls 71, 71 is driven and rotated by the pair of rolls 71, 71 and the core 72 is driven. By the rotation, it is wound around the outer peripheral surface 72a of the winding core 72 to form the wound body R (see FIG. 4E).
　誘導部材７３は、巻芯７２の外周面７２ａに沿った曲率を有するとともに該外周面７２ａと間隔を隔てて対向するガイド面７３ａを備え、所定の方向に移動可能に配設されている。 The guide member 73 has a guide surface 73a having a curvature along the outer peripheral surface 72a of the winding core 72 and facing the outer peripheral surface 72a with a space therebetween, and is arranged so as to be movable in a predetermined direction.
　誘導部材７３は、ガラスチョップドストランドマットＭを巻き取る際に、巻芯７２の外周面７２ａと所定の間隔を隔てて対向して配置される。
　また、ガラスチョップドストランドマットＭの先端部Ｍ１が巻芯７２の外周面７２ａを周回して巻き取られることにより、当該先端部Ｍ１は自身の上層に巻き取られるガラスチョップドストランドマットＭと巻芯７２との間に挟持される。
　そして、ガラスチョップドストランドマットＭの先端部Ｍ１が挟持されると、退避手段は、ガイド面７３ａがガラスチョップドストランドマットＭの巻き付け完了時の外周位置よりも外側に位置するように、誘導部材７３を退避移動させる。 When the glass chopped strand mat M is wound, the guide member 73 is arranged so as to face the outer peripheral surface 72a of the winding core 72 with a predetermined gap.
The tip M1 of the glass chopped strand mat M is wound around the outer peripheral surface 72a of the winding core 72, so that the tip M1 is wound on the upper layer of the glass chopped strand mat M and the winding core 72. Sandwiched between.
Then, when the tip M1 of the glass chopped strand mat M is clamped, the retracting means moves the guide member 73 so that the guide surface 73a is located outside the outer peripheral position of the glass chopped strand mat M when winding is completed. Evacuate and move.
　［巻取装置７０の動作］
　次に、本発明の一実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒの形成方法を具現化する巻取装置７０の一連の動作について、図４Ａ～Ｅを参照しながら具体的に説明する。 [Operation of the winding device 70]
Next, a series of operations of the winding device 70 embodying the method for forming the wound body R of the glass chopped strand mat M according to the embodiment of the present invention will be specifically described with reference to FIGS. 4A to 4E. To do.
　帯状に形成されたガラスチョップドストランドマットＭはコンベヤローラ等の搬送手段を使用することにより所定速度で搬送され、図４Ａに示すように、ガラスチョップドストランドマットＭは、一対の同方向に駆動回転するローラ７１・７１の一方の側（同図で左斜め上方側）から巻取装置７０に供給される。 The belt-shaped glass chopped strand mat M is conveyed at a predetermined speed by using a conveying means such as a conveyor roller, and as shown in FIG. 4A, the glass chopped strand mat M is driven to rotate in a pair in the same direction. The rollers 71 are supplied to the winding device 70 from one side (the diagonally upper left side in the figure) of the rollers 71.
　一対のロール７１・７１間の上面谷部の上方には巻芯７２が中心軸７４を中心に回転自在に配置されており、ガラスチョップドストランドマットＭの先端部Ｍ１がローラ７１の外周面と巻芯７２の外周面７２ａとの間の隙間に入ると、巻芯７２はローラ７１の駆動回転に従動して回転する。
　これにより、ガラスチョップドストランドマットＭが巻芯７２の外周に巻き取られる。 A winding core 72 is rotatably arranged around a central shaft 74 above the upper surface valley between the pair of rolls 71, and the tip M1 of the glass chopped strand mat M is wound around the outer peripheral surface of the roller 71. When entering the gap between the core 72 and the outer peripheral surface 72 a, the winding core 72 is rotated by the driving rotation of the roller 71.
As a result, the glass chopped strand mat M is wound around the outer circumference of the winding core 72.
　巻芯７２の半径方向外側には、ガイド面７３ａを有する誘導部材７３が巻芯７２に沿って配置されている。
　誘導部材７３のガイド面７３ａは、巻芯７２の外周に沿った曲率を有し、巻芯７２の外周面７２ａと所定の間隔を隔てて対向している。 A guide member 73 having a guide surface 73a is arranged outside the winding core 72 in the radial direction along the winding core 72.
The guide surface 73a of the guide member 73 has a curvature along the outer circumference of the winding core 72, and faces the outer circumferential surface 72a of the winding core 72 at a predetermined interval.
　ローラ７１と巻芯７２との間の隙間に入ったガラスチョップドストランドマットＭの先端部Ｍ１は、ロール７１の駆動回転と巻芯７２の従動回転により送られて、巻芯７２の外周面７２ａと誘導部材７３のガイド面７３ａとの間の間隔部に入る。 The tip portion M1 of the glass chopped strand mat M, which has entered the gap between the roller 71 and the winding core 72, is fed by the driving rotation of the roll 71 and the driven rotation of the winding core 72, and the outer peripheral surface 72a of the winding core 72 and It enters the space between the guide member 73 and the guide surface 73a.
　そして、図４Ｂに示すように、上記間隔部に入った先端部Ｍ１は誘導部材７３のガイド面７３ａにそって誘導（ガイド）されながら進み、巻芯７２の外周面７２ａに沿って接触するとともにガラスチョップドストランドマットＭの先端部Ｍ１もしくは先端部Ｍ１の近傍部分が凹凸領域Ａの粘着性を有する略スパイラル状の凸部７５（図２参照）に粘着して、ガラスチョップドストランドマットＭが巻芯７２の外周面７２ａに巻き付けられる。
　ここで、ガラスチョップドストランドマットＭの先端部Ｍ１の近傍部分とは、ガラスチョップドストランドマットＭの長手方向において、例えばガラスチョップドストランドマットＭの先端から３００ｍｍまでの寸法範囲の部位である。 Then, as shown in FIG. 4B, the front end portion M1 that has entered the above-described interval portion advances while being guided (guided) along the guide surface 73a of the guide member 73, and contacts along the outer peripheral surface 72a of the winding core 72. The tip portion M1 of the glass chopped strand mat M or a portion in the vicinity of the tip portion M1 adheres to the substantially spiral convex portion 75 (see FIG. 2) having adhesiveness of the concave and convex area A, and the glass chopped strand mat M is wound around the core. It is wound around the outer peripheral surface 72a of 72.
Here, the portion in the vicinity of the tip M1 of the glass chopped strand mat M is a portion in the dimension range from the tip of the glass chopped strand mat M to 300 mm in the longitudinal direction of the glass chopped strand mat M.
　その後、図４Ｃに示すように、先端部Ｍ１は巻芯７２の外周面７２ａを周回（一周）した後、その上層に巻き取られるガラスチョップドストランドマットＭと巻芯７２との間に挟持される。 Thereafter, as shown in FIG. 4C, the tip M1 circulates around the outer peripheral surface 72a of the winding core 72 (one round), and is then sandwiched between the glass chopped strand mat M wound on the upper layer and the winding core 72. ..
　そして、ガラスチョップドストランドマットＭが数周巻回され、図４Ｄに示すように、誘導部材７３が、図示されていない退避手段によって駆動され、ガイド面７３ａがガラスチョップドストランドマットＭの巻き付け完了時の外周位置（満巻き時の巻回体の外周位置）よりも外側に位置するように、巻芯７２の半径方向（Ｓ方向）に退避移動する。
　これにより、ガラスチョップドストランドマットＭの巻き付け時に誘導部材７３のガイド面７３ａが妨げになることはない。 Then, the glass chopped strand mat M is wound several times, as shown in FIG. 4D, the guide member 73 is driven by a retracting means (not shown), and the guide surface 73a is when the winding of the glass chopped strand mat M is completed. The core 72 is retracted in the radial direction (S direction) so as to be located outside the outer peripheral position (the outer peripheral position of the wound body when fully wound).
As a result, the guide surface 73a of the guide member 73 does not hinder the winding of the glass chopped strand mat M.
　このような一連の動作によって、誘導部材７３のガイド面７３ａは、巻き付け初期において、ガラスチョップドストランドマットＭの先端部Ｍ１が確実に巻芯７２の外周面７２ａに積層した状態となるように円滑に巻き付けていくことを可能にする。こうして、図４Ｅに示すようなガラスチョップドストランドマットＭの巻回体Ｒを得ることができる。 By such a series of operations, the guide surface 73a of the guide member 73 smoothly moves so that the tip end portion M1 of the glass chopped strand mat M is surely stacked on the outer peripheral surface 72a of the winding core 72 in the initial winding stage. Allows you to wrap around. Thus, the wound body R of the glass chopped strand mat M as shown in FIG. 4E can be obtained.
　誘導部材７３の退避移動は、巻芯７２の回転速度（即ち、ガラスチョップドストランドマットＭの巻き付け速度）を勘案して、所定時間経過後に行う構成としてもよいし、あるいは、巻芯７２の外周に巻き取られたガラスチョップドストランドマットＭの厚みをセンサー等で検出し、その検出値に基づいて行う構成としてもよい。 The retreat movement of the guide member 73 may be performed after a predetermined time has passed, in consideration of the rotation speed of the winding core 72 (that is, the winding speed of the glass chopped strand mat M), or on the outer circumference of the winding core 72. A configuration may be adopted in which the thickness of the wound glass chopped strand mat M is detected by a sensor or the like and based on the detected value.
　また、誘導部材７３のガイド面７３ａの移動距離や移動速度は、ガラスチョップドストランドマットＭの巻き付け速度や巻き付け完了時（満巻き時）の巻回体Ｒの外径に応じた値とすればよく、誘導部材７３のガイド面７３ａが巻き付け動作の妨げになることがなければよい。 Further, the moving distance and the moving speed of the guide surface 73a of the guide member 73 may be set to a value corresponding to the winding speed of the glass chopped strand mat M and the outer diameter of the wound body R when the winding is completed (full winding). The guide surface 73a of the guiding member 73 should not interfere with the winding operation.
　誘導部材７３を構成する材料としては、ガラスチョップドストランドマットＭの先端部Ｍ１を誘導するに足るだけの機械的な強度を実現することのできる材料であればどのような材料を用いてもよく、例えば各種プラスチックやＦＲＰ、金属や木材、さらにゴムやガラス等の材料を単独あるいは複合させたものであってもよい。
　その中でも特にプラスチックやＦＲＰは、適度な強度を有し軽量で成形性も高いためより好ましい。 As the material forming the guide member 73, any material may be used as long as it is a material that can realize mechanical strength sufficient to guide the tip end portion M1 of the glass chopped strand mat M, For example, various plastics, FRPs, metals, woods, and materials such as rubber and glass may be used alone or in combination.
Among them, plastic and FRP are more preferable because they have appropriate strength, are lightweight, and have high moldability.
　プラスチックとしては、例えばアクリル、ポリエチレン、ポリプロピレン、ポリ塩化ビニル、ポリエチレンテレフタレート、ナイロン、ポリアセタール、ポリカーボネート、ポリフェニレンスルフィド、ポリスルホン、ポリエーテルイミド、ポリエーテルエーテルケトン、ポリイミド、又は芳香族ポリエステルなどを使用すればよいが、他のプラスチック材料であっても問題はない。 As the plastic, for example, acrylic, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, nylon, polyacetal, polycarbonate, polyphenylene sulfide, polysulfone, polyetherimide, polyetheretherketone, polyimide, or aromatic polyester may be used. However, there is no problem with other plastic materials.
　また、巻取装置７０は、上述に加え、巻芯７２の中心軸７４と垂直な断面において、誘導部材７３のガイド面７３ａが巻芯７２の外周と同心で、かつ、上記中心軸７４を中心とする１２０°～２７０°の角度範囲の円弧形状を有するものであれば、ガラスチョップドストランドマットＭの先端部Ｍ１を的確に誘導することが可能となり、上記した誘導部材７３の退避動作を行う場合に誘導部材７３を移動させやすい構成とすることができる。 Further, in the winding device 70, in addition to the above, in a cross section perpendicular to the central axis 74 of the winding core 72, the guide surface 73a of the guiding member 73 is concentric with the outer circumference of the winding core 72, and the central axis 74 is the center. If it has an arcuate shape in the angle range of 120° to 270°, the tip M1 of the glass chopped strand mat M can be accurately guided, and the retracting operation of the guiding member 73 is performed. The guide member 73 can be easily moved.
　誘導部材７３のガイド面７３ａの上記角度が１２０°に満たないと、ガラスチョップドストランドマットＭの柔軟性の度合いや巻き付け速度の条件によってはガラスチョップドストランドマットＭの先端部Ｍ１を巻芯７２に巻き付けることができなくなる場合がある。 If the angle of the guide surface 73a of the guide member 73 is less than 120°, the tip M1 of the glass chopped strand mat M is wound around the winding core 72 depending on the degree of flexibility of the glass chopped strand mat M and the winding speed condition. It may not be possible.
　これに対して、上記角度を１２０°以上とすることによって、巻き付け速度が高速になっても支障なく巻き付けができるようにすることができ、また、柔軟性に乏しい、厚みのあるガラスチョップドストランドマットＭに対しても、効率的な巻き付け動作を行わせることができる。
　なお、上記角度が２７０°を越えると、誘導部材７３の退避移動が困難になる場合がある。 On the other hand, by setting the angle to 120° or more, it is possible to wind without hindrance even when the winding speed is high, and the glass chopped strand mat with poor flexibility is thick. It is possible to cause M to perform an efficient winding operation.
If the angle exceeds 270°, it may be difficult to retract the guide member 73.
　以上のような観点から、巻き付け動作や誘導部材７３の退避移動をより円滑に行うことのできるものとするには、ガイド面７３ａの上記角度は１００°～２５０°の角度範囲内で設定するのが好ましい。 From the above viewpoints, in order to perform the winding operation and the retracting movement of the guide member 73 more smoothly, the angle of the guide surface 73a is set within the angle range of 100° to 250°. Is preferred.
　また、巻取装置７０は、上述に加え、誘導部材７３のガイド面７３ａと巻芯７２の外周面７２ａとの間の間隔が、ガラスチョップドストランドマットＭの厚み寸法に対して２倍以上であると、ガラスチョップドストランドマットＭの巻き付け時に、特にその表面に損傷などの欠陥を生じさせたりすることがなく、ガラスチョップドストランドマットＭを確実かつ的確に巻芯７２へと円滑に巻き取ることができるので好ましい。 In the winding device 70, in addition to the above, the distance between the guide surface 73a of the guide member 73 and the outer peripheral surface 72a of the winding core 72 is twice or more the thickness dimension of the glass chopped strand mat M. When the glass chopped strand mat M is wound, the glass chopped strand mat M can be smoothly and reliably wound around the winding core 72 without causing defects such as damage on the surface thereof. Therefore, it is preferable.
　ここで、上記の間隔は、誘導部材７３のガイド面７３ａと巻き取り筒体の外周との間の最短距離である。 The above distance is the shortest distance between the guide surface 73a of the guide member 73 and the outer circumference of the winding cylinder.
　ガラスチョップドストランドマットＭの厚み寸法は、ガラス繊維の種類やその用途等によっても異なるが、０．０５ｍｍから１０ｍｍまでの厚みを有している。
　従って、上記の間隔は、０．１ｍｍ以上５０ｍｍ程度の大きさであることが好ましい。 The thickness dimension of the glass chopped strand mat M varies depending on the type of glass fiber and its application, but has a thickness of 0.05 mm to 10 mm.
Therefore, it is preferable that the above-mentioned interval has a size of about 0.1 mm or more and about 50 mm.
　上記の間隔が過大であると、ガラスチョップドストランドマットＭにしわが生じ易くなる場合もあり、安定した品位の巻回体Ｒが得られにくくなる。一方、上記の間隔がガラスチョップドストランドマットＭの厚み寸法の５倍を超えると、ガイド面７３ａの誘導機能が得られなくなる場合がある。
　よって、上記の間隔は、ガラスチョップドストランドマットＭの厚み寸法の２倍から５倍の範囲内とするのが好ましい。具体的な寸法を例示すれば、０．１ｍｍから５０ｍｍまでの範囲となる。 If the interval is too large, the glass chopped strand mat M may be easily wrinkled, which makes it difficult to obtain the wound body R with stable quality. On the other hand, when the above-mentioned interval exceeds 5 times the thickness dimension of the glass chopped strand mat M, the guiding function of the guide surface 73a may not be obtained.
Therefore, it is preferable that the interval is within a range of 2 to 5 times the thickness dimension of the glass chopped strand mat M. To give an example of specific dimensions, the range is from 0.1 mm to 50 mm.
　また、上述した巻取装置７０では、巻芯７２に４０ｍ／分～１００ｍ／分の巻き付け速度でガラスチョップドストランドマットＭを巻き取ってガラスチョップドストランドマットＭの巻回体Ｒを形成することが好ましい。 In the winding device 70 described above, it is preferable to wind the glass chopped strand mat M around the winding core 72 at a winding speed of 40 m/min to 100 m/min to form the wound body R of the glass chopped strand mat M. ..
　ガラスチョップドストランドマットＭの巻き付け速度が４０ｍ／分未満であると、大量生産を行う上で製造効率が向上せず、経済的ではない。一方、巻き付け速度が１００ｍ／分を超えると、巻芯７２の外周面７２ａにガラスチョップドストランドマットＭが接触しても巻芯の回転に追従して巻き込まれなくなるため好ましくない。 If the winding speed of the glass chopped strand mat M is less than 40 m/min, the production efficiency will not be improved in mass production, which is not economical. On the other hand, if the winding speed exceeds 100 m/min, even if the glass chopped strand mat M comes into contact with the outer peripheral surface 72a of the winding core 72, it will not be wound up following the rotation of the winding core, which is not preferable.
　以上の観点から、より高い品位で、しかも高い安定度を有する巻き付けを行うために、巻き付け速度は、５０ｍ／分～９０ｍ／分の範囲とするのが好ましく、さらに好ましくは６０ｍ／分～９０ｍ／分の範囲とすることであり、一層好ましくは７０ｍ／分～９０ｍ／分とすることである。 From the above viewpoint, in order to carry out winding with higher quality and high stability, the winding speed is preferably in the range of 50 m/min to 90 m/min, more preferably 60 m/min to 90 m/min. The range is minutes, and more preferably 70 m/min to 90 m/min.
　上記のガラスチョップドストランドマットＭを構成するガラス繊維の組成は、所望の性能を発揮するものであれば特に限定されることはなく、様々な組成のガラス繊維を使用することが可能である。
　例えば、Ｅガラス、Ｄガラス、Ｃガラス、ＡＲガラス、Ｈガラス、又はＳガラス等の代表的な組成のガラス繊維であってもよく、他の組成を有するものであってもよい。 The composition of the glass fibers forming the above glass chopped strand mat M is not particularly limited as long as it exhibits desired performance, and glass fibers having various compositions can be used.
For example, it may be glass fiber having a typical composition such as E glass, D glass, C glass, AR glass, H glass, or S glass, or may have another composition.
　巻芯７２は、ガラスチョップドストランドマットＭの巻き付け用の筒体であり、例えば、紙管原紙、クラフト紙、包装紙等の紙素材を構造材とする紙管である。
　巻芯７２は、マンドレルと称される金属製の軸芯に前記した原紙を幾層にも重ねて回転させながら筒状の形態で製作される。 The winding core 72 is a tubular body around which the glass chopped strand mat M is wound, and is a paper tube having a paper material such as paper tube raw paper, kraft paper, or wrapping paper as a structural material.
The winding core 72 is manufactured in a tubular shape by stacking several layers of the above-mentioned base paper on a metal shaft core called a mandrel and rotating the same.
　そして、巻芯７２の外周面７２ａには化粧仕上げを目的として、ラッピング紙や包装紙等の上貼り紙が用いられる。 For the outer peripheral surface 72a of the winding core 72, wrapping paper, wrapping paper, or other overcoated paper is used for the purpose of finishing the makeup.
　また、巻芯７２は、経済性などを考慮すると上述した紙管とするのが好ましいが、機械的な強度を重視する場合には、例えばプラスチックやＦＲＰなどの材料によって構成されるものであってもよい。なお、巻芯７２の詳細な構成に関しては、以下の形成方法の説明の際に説明する。 Further, the core 72 is preferably the above-mentioned paper tube in consideration of economical efficiency, but when the mechanical strength is emphasized, the core 72 is made of a material such as plastic or FRP. Good. The detailed configuration of the winding core 72 will be described in the following description of the forming method.
　［ガラスチョップドストランドマットＭの巻回体Ｒの形成方法］
　本発明の一実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒの形成方法は、ガラスチョップドストランドＳを含む帯状のガラスチョップドストランドマットＭの巻回体Ｒの形成方法であって、ガラスチョップドストランドマットＭの先端部Ｍ１の少なくとも一部を巻芯７２の外周面７２ａに沿って接触させて巻芯７２を回転させることで、ガラスチョップドストランドマットＭをロール状に巻き取り巻回体Ｒを形成する工程を備え、巻芯７２の外周面７２ａには、当該外周面７２ａに対して樹脂を塗布することで形成される、粘着性を有する凸状の凸部７５と、粘着性を有しない凹状の凹部７６からなる凹凸領域Ａを有することを特徴とする。
　このように、巻芯７２の外周面７２ａに、凸部７５及び凹部７６を有する凹凸領域Ａを設け、ガラスチョップドストランドマットＭの先端部Ｍ１もしくは先端部Ｍ１の近傍を巻芯７２の凹凸領域Ａの凸部７５に粘着させることにより、ガラスチョップドストランドマットＭを確実に巻き取ることが可能となり、巻姿が良好な巻回体Ｒを効率的に生産できる。詳述すると、凹凸領域Ａが粘着性を有する凸部７５と粘着性を有しない凹部７６で構成されており、ガラスチョップドストランドマットＭの先端部もしくは先端部近傍には、凹凸領域Ａに対して粘着している部分と粘着していない部分が存在しているため、ガラスチョップドストランドマットＭの巻回体ＲからガラスチョップドストランドマットＭを引き出して使い切る際に、引き出したガラスチョップドストランドマットＭが引っ張られても、ガラスチョップドストランドマットＭの先端部もしくは先端部近傍の全体が巻き芯に粘着している場合と比較して、ガラスチョップドストランドマットＭが巻芯７２から容易に離れるため、破れ等の損傷の発生を防ぐことができる。 [Method for forming wound body R of glass chopped strand mat M]
A method of forming a wound body R of a glass chopped strand mat M according to an embodiment of the present invention is a method of forming a wound body R of a band-shaped glass chopped strand mat M containing a glass chopped strand S, which is a glass chopped By rotating at least part of the tip M1 of the strand mat M along the outer peripheral surface 72a of the winding core 72 to rotate the winding core 72, the glass chopped strand mat M is wound into a roll to form a wound body R. The outer peripheral surface 72a of the winding core 72 is provided with a step of forming, and the convex convex portion 75 having adhesiveness, which is formed by applying a resin to the outer peripheral surface 72a, and does not have adhesiveness. It is characterized by having a concavo-convex region A formed of a concave portion 76 having a concave shape.
Thus, the outer peripheral surface 72a of the winding core 72 is provided with the concavo-convex area A having the convex portion 75 and the concave portion 76, and the tip M1 of the glass chopped strand mat M or the vicinity of the tip M1 is provided with the concavo-convex area A of the core 72. The glass chopped strand mat M can be surely wound up by sticking it to the convex portion 75, and the wound body R having a good winding shape can be efficiently produced. More specifically, the concavo-convex area A is composed of a convex portion 75 having adhesiveness and a concave portion 76 having no adhesiveness. When the glass chopped strand mat M is pulled out from the winding body R of the glass chopped strand mat M and used up, the pulled glass chopped strand mat M is pulled because there are sticky portions and non-sticky portions. Even when the glass chopped strand mat M is adhered to the core, the glass chopped strand mat M easily separates from the core 72, so that the glass chopped strand mat M may be torn. The occurrence of damage can be prevented.
　凸部７５は、巻芯７２の外周面７２ａに所定の樹脂（本実施形態では、ホットメルト樹脂）を略スパイラル状に塗布することで形成される。
　このように、本実施形態では、凸部７５が略スパイラル状に塗布することで形成されることで、粘着性を有する凸部７５と粘着性を有しない凹部７６とからなる凹凸領域Ａを巻芯７２の外周面７２ａの任意の領域に容易に形成することができる。 The convex portion 75 is formed by applying a predetermined resin (hot melt resin in the present embodiment) to the outer peripheral surface 72 a of the winding core 72 in a substantially spiral shape.
As described above, in the present embodiment, the convex portion 75 is formed by being applied in a substantially spiral shape, so that the uneven area A including the convex portion 75 having adhesiveness and the concave portion 76 having no adhesiveness is wound. It can be easily formed in any region of the outer peripheral surface 72a of the core 72.
　ホットメルト樹脂としては、例えば、エチレン－酢酸ビニル共重合体（ＥＶＡ）系、ポリアミド系、ポリウレタン系、及びポリオレフィン系のホットメルト樹脂がある。
　本実施形態では、ホットメルト樹脂を用いることで、塗布後常温になることより固化するため、凸部７５を容易に形成することができる。 Examples of the hot melt resin include ethylene-vinyl acetate copolymer (EVA)-based, polyamide-based, polyurethane-based, and polyolefin-based hot-melt resins.
In this embodiment, since the hot-melt resin is used and solidified at room temperature after coating, the convex portion 75 can be easily formed.
　また、ホットメルト樹脂として好ましい物性としては、ホットメルト樹脂を全体に塗工して重ねた試験基材が、ＪＩＳ　Ｐ　８１４７（２０１０年）の傾斜法に準拠して測定された滑り傾斜角が４０度以上であることが好ましい。
　即ち、滑り傾斜角が４０度以上である場合、ガラスチョップドストランドマットＭが巻芯７２の外周面７２ａに接触した際に、凸部７５に引っ掛かり易くすることができる。
　一方、滑り傾斜角が４０度未満である場合は、ガラスチョップドストランドマットＭが巻芯７２の外周面７２ａに接触した際にでも、凸部７５が安定して引っ掛からない。 Further, as a preferable physical property as a hot melt resin, a test base material obtained by coating a hot melt resin on the whole and stacking the test base material has a slip inclination angle of 40 measured according to the inclination method of JIS P 8147 (2010). It is preferably at least a degree.
That is, when the sliding inclination angle is 40 degrees or more, when the glass chopped strand mat M comes into contact with the outer peripheral surface 72a of the winding core 72, it can be easily caught by the convex portion 75.
On the other hand, when the sliding inclination angle is less than 40 degrees, even when the glass chopped strand mat M contacts the outer peripheral surface 72a of the winding core 72, the convex portion 75 is not stably caught.
　［ＪＩＳ　Ｐ　８１４７（２０１０年）の傾斜法に準拠した評価方法］
　所定のホットメルト樹脂を加熱溶融し、所定の塗工温度で試験基材の一例である２枚の標準段ボールのうち一方の標準段ボールに塗工する。ホットメルト樹脂を塗工後、オープンタイム（硬化時間）１５０秒後に標準段ボールを重ね、所定の荷重（例えば、３ｋｇ）をかけた状態で常温にて１分間保持し、当該重ねた段ボールを徐々に傾斜をつけ、滑り落ちた時（上下の段ボールがずれた時）の角度（滑り傾斜角）を測定する。ガラスチョップドストランドマットＭを巻芯７２へ確実に巻き付ける際の安定性が乏しく、しわやずれが発生する。仮に巻芯７２へガラスチョップドストランドマットＭを巻き付けられたとしても、巻き付け初期に巻芯７２の凸部７５に粘着されずに、巻芯７２が空回転することでガラスチョップドストランドマットＭにたるみが生じ、当該たるみを解消するために巻ズレやしわが入ったり、巻きズレに起因して破れたりする。 [Evaluation method based on the tilt method of JIS P 8147 (2010)]
A predetermined hot-melt resin is heated and melted, and is coated on one standard corrugated board of two standard corrugated boards, which is an example of a test base material, at a predetermined coating temperature. After applying the hot melt resin, the open corrugated board (curing time) 150 seconds later, the standard corrugated board is piled up, and it is kept at room temperature for 1 minute under a predetermined load (for example, 3 kg). Measure the angle (sliding tilt angle) when it is slid down and slips down (when the upper and lower corrugated boards are displaced). When the glass chopped strand mat M is securely wound around the winding core 72, the stability is poor, and wrinkles and deviations occur. Even if the glass chopped strand mat M is wound around the winding core 72, the glass chopped strand mat M does not stick to the convex portion 75 of the winding core 72 in the initial stage of winding, and the glass chopped strand mat M is slackened by idle rotation. Occurrence occurs, and misalignment or wrinkling occurs in order to eliminate the slack, or tearing occurs due to misalignment.
　巻芯７２の外周面７２ａのうち凹凸領域Ａを除く非粘着部分（例えば、紙素材表面）である非粘着面とガラスチョップドストランドマットＭとの間におけるＪＩＳ　Ｋ　７１２５（１９９９年）に規定された動摩擦係数が０．１５～０．３５であることが好ましい。 Specified in JIS K 7125 (1999) between the non-adhesive surface of the outer peripheral surface 72a of the winding core 72, which is the non-adhesive portion (for example, the surface of the paper material) excluding the uneven area A, and the glass chopped strand mat M. The dynamic friction coefficient is preferably 0.15 to 0.35.
　すなわち、前述したＪＩＳ　Ｋ　７１２５（１９９９年）に規定された方法に準拠して測定したガラスチョップドストランドマットＭと巻芯７２の非粘着面との間の動摩擦係数が、０．１５～０．３５の範囲になるように、予め加工、調整して所定の動摩擦係数になるようにした巻芯７２を用いることが好ましい。ガラスチョップドストランドマットＭと巻芯７２の非粘着面との間の動摩擦係数の調整方法としては、例えば、巻芯７２の表面の材質を適宜変更したり、巻芯７２の表面に、摩擦を調整するためのコーティング剤を塗布したり、巻芯７２の表面の表面粗さを調整すること等が挙げられる。 That is, the coefficient of kinetic friction between the glass chopped strand mat M and the non-adhesive surface of the winding core 72 measured according to the method specified in JIS K 7125 (1999) is 0.15 to 0.35. It is preferable to use the core 72 which is processed and adjusted in advance so as to have a predetermined dynamic friction coefficient so as to be within the range. As a method of adjusting the dynamic friction coefficient between the glass chopped strand mat M and the non-adhesive surface of the winding core 72, for example, the material of the surface of the winding core 72 is appropriately changed, or the friction of the surface of the winding core 72 is adjusted. For example, it is possible to apply a coating agent for adjusting the surface roughness or adjust the surface roughness of the surface of the winding core 72.
　動摩擦係数が０．１５未満である場合、ガラスチョップドストランドマットＭを直接巻芯７２へ確実に巻き付ける際の安定性が乏しく、仮に巻芯７２へガラスチョップドストランドマットＭを巻き付けられたとしても、凸部７５とガラスチョップドストランドマットＭが粘着する前の巻芯７２の空回転が大きくなることでガラスチョップドストランドマットＭにたるみが生じ、当該たるみを解消するために、だぶつきやしわが入りやすい。 When the coefficient of kinetic friction is less than 0.15, the stability when the glass chopped strand mat M is directly wound around the winding core 72 is poor, and even if the glass chopped strand mat M is wound around the winding core 72, it is convex. Since the idle rotation of the winding core 72 before the portion 75 and the glass chopped strand mat M adhere to each other becomes large, the glass chopped strand mat M becomes slack, and in order to eliminate the slack, looseness and wrinkles are likely to occur.
　一方、動摩擦係数が０．３５を超える場合、ガラスチョップドストランドマットＭと巻芯７２間の滑り性が極端に低下し、ガラスチョップドストランドマットＭの先端部Ｍ１が巻芯７２の外周面７２ａ（外表面）に接した瞬間に巻き付け作用が強く働き、凸部７５とガラスチョップドストランドマットＭに接する前から巻き付けが開始される。その結果、ガラスチョップドストランドマットＭが歪んだまま巻き取られて巻ズレやガラスチョップドストランドマットＭにしわが入ったり、巻回体Ｒ全体の巻姿が極度に悪くなったり、さらにはガラスチョップドストランドマットＭの表面を傷つけやすい。 On the other hand, when the coefficient of dynamic friction exceeds 0.35, the slipperiness between the glass chopped strand mat M and the core 72 is extremely reduced, and the tip M1 of the glass chopped strand mat M is attached to the outer peripheral surface 72a (outer side) of the core 72. The winding action is strong at the moment of contact with the front surface), and the winding is started before the protrusion 75 and the glass chopped strand mat M are contacted. As a result, the glass chopped strand mat M is rolled up while being distorted, and winding misalignment occurs, the glass chopped strand mat M is wrinkled, the winding shape of the entire wound body R becomes extremely bad, and further, the glass chopped strand mat M. It is easy to damage the surface of M.
　また、上記動摩擦係数は０．１６～０．３４であることがより好ましい。 Further, it is more preferable that the dynamic friction coefficient is 0.16 to 0.34.
　凹凸領域Ａを形成する方法としては、例えば、巻芯７２を軸方向（水平方向）に搬送しつつ、巻芯７２の上方に配置された吐出部材により溶融したホットメルト樹脂を巻芯７２の外周面７２ａに向けて略スパイラル状に吐出し、常温になることで固化されて凸部７５が形成される。これにより、巻芯７２の外周面７２ａの任意の領域に凸部７５を含む凹凸領域Ａを容易に形成することができる。 As a method of forming the concavo-convex area A, for example, while transporting the core 72 in the axial direction (horizontal direction), the hot melt resin melted by the discharge member arranged above the core 72 is wound around the core 72. It is ejected in a substantially spiral shape toward the surface 72a and is solidified at room temperature to form the convex portion 75. Thereby, the concavo-convex area A including the convex portion 75 can be easily formed in an arbitrary area of the outer peripheral surface 72a of the winding core 72.
　凹凸領域Ａは、略スパイラル状に形成されているため、粘着性を有する凸部７５と、凸部７５に囲まれるもしくは隣接する粘着性を有しない凹部７６とにより構成される。凹凸領域Ａは、巻芯７２の外周面７２ａの幅方向の全幅に亘って、所定幅を有する略帯状に形成される。凹凸領域Ａは、図３に示すように、径方向両端の外周面７２ａに形成される。
　なお、凹凸領域Ａを設ける領域としては、巻芯７２の外周面７２ａの任意の位置であってよい。また、凸部７５の形状は、略スパイラル状に限らず、粘着性を有する凸部と粘着性を有しない凹部が交互に配置されるような網目状等になっていても構わない。 Since the concave-convex region A is formed in a substantially spiral shape, it is composed of the convex portion 75 having adhesiveness and the concave portion 76 surrounded by or adjacent to the convex portion 75 and having no adhesiveness. The concavo-convex region A is formed in a substantially strip shape having a predetermined width over the entire width of the outer peripheral surface 72a of the winding core 72 in the width direction. The concavo-convex area A is formed on the outer peripheral surfaces 72a at both ends in the radial direction, as shown in FIG.
The area in which the uneven area A is provided may be an arbitrary position on the outer peripheral surface 72 a of the winding core 72. Further, the shape of the convex portion 75 is not limited to a substantially spiral shape, and may be a mesh shape or the like in which convex portions having adhesiveness and concave portions having no adhesiveness are alternately arranged.
　［凹凸領域（凸部）の形状］
　次に、凹凸領域（凸部）の形状について具体的に説明する。なお、図５Ａ～Ｇでは、巻芯を平面展開した際の凹凸領域における凸部の形状を模式的に示している。
　図５Ａ～Ｇに示すように、凹凸領域Ａを構成する凸部７５の形状としては、例えば、本実施形態の如く略スパイラル状（図５Ａ）以外に、ジグザグ形状（図５Ｂ）、カーブ（曲線）形状（図５Ｃ）、ドット形状・水玉形状（図５Ｄ）、直線形状（図５Ｅ）、網目状（図５Ｆ）、格子状（図５Ｇ）、またはこれらの形状を組み合わせた形状や特定の形状に限定しないランダムな形状にすることができる。また、図５Ａ～Ｃ、及び図５Ｅ～Ｇで示す各形状において、線状の凸部の幅寸法及び長さ寸法を適宜変更してもよい。また、図５Ｄで示すドット形状等において、島状の凸部の幅寸法を適宜変更してもよい。 [Shape of uneven area (projection)]
Next, the shape of the concavo-convex region (convex portion) will be specifically described. 5A to 5G, the shapes of the convex portions in the concave-convex region when the winding core is developed in a plane are schematically shown.
As shown in FIGS. 5A to 5G, as the shape of the convex portion 75 forming the concavo-convex area A, for example, in addition to the substantially spiral shape (FIG. 5A) as in the present embodiment, a zigzag shape (FIG. 5B), a curve (curve) is used. ) Shape (FIG. 5C), dot shape/polka dot shape (FIG. 5D), linear shape (FIG. 5E), mesh shape (FIG. 5F), lattice shape (FIG. 5G), or a shape or a combination of these shapes. The shape may be a random shape not limited to. Further, in each of the shapes shown in FIGS. 5A to 5C and FIGS. 5E to 5G, the width and length of the linear protrusion may be changed as appropriate. Further, in the dot shape and the like shown in FIG. 5D, the width dimension of the island-shaped convex portion may be appropriately changed.
　また、本実施形態において略スパイラル状とは、図２に示すように隣接する螺旋の輪同士が重ならない状態であってもよいし、図３に示すように隣接する螺旋の輪同士が重なった状態であってもよい。また、隣接する螺旋の輪の大きさが異なっている部分が含まれてもよい。隣接して連続する螺旋の輪同士の重なり具合や輪の大きさを適宜変更することで、凹凸領域Ａにおける凸部７５の存在割合を制御することができ、それによって凹凸領域Ａの粘着性を適宜制御することができる。例えば、輪の大きさを大きくし、巻芯７２の外周面全体に凸部７５を形成してもよい。 Further, in the present embodiment, the substantially spiral shape may be a state in which adjacent spiral rings do not overlap each other as shown in FIG. 2, or adjacent spiral rings overlap as shown in FIG. 3. It may be in a state. Also, a portion in which the sizes of adjacent spiral rings are different may be included. By appropriately changing the degree of overlap between adjacent and continuous spiral rings or the size of the rings, it is possible to control the existence ratio of the convex portions 75 in the concave-convex area A, thereby increasing the adhesiveness of the concave-convex area A. It can be controlled appropriately. For example, the size of the ring may be increased and the convex portion 75 may be formed on the entire outer peripheral surface of the winding core 72.
　また、本実施形態では、図３に示すように、巻芯７２の外周面７２ａにおいて二つの凹凸領域Ａを設ける構成としているが、少なくとも凹凸領域Ａを一つ以上設ける構成であればよい。 Further, in the present embodiment, as shown in FIG. 3, two outer peripheral areas 72a of the winding core 72 are provided with the two concavo-convex areas A, but at least one concavo-convex area A may be provided.
　線形状の凸部７５の幅（線幅）寸法は０．１ｍｍ以上、５．０ｍｍ以下であることが好ましい。凸部７５の幅が０．１ｍｍ未満の場合、巻芯７２に安定的にガラスチョップドストランドマットＭを巻きつけることが難しくなるため好ましくない。一方、凸部７５の幅が５．０ｍｍを超える場合、ガラスチョップドストランドマットＭの先端部Ｍ１が巻芯７２の表面に接した瞬間に巻き付け作用が強く働き過ぎるため、歪んだまま巻き取られて巻ズレやガラスチョップドストランドマットＭにしわが入ったり、巻回体Ｒ全体の巻姿が極度に悪くなったり、使用する樹脂量が多くなりコストが増加する。 The width (line width) of the linear convex portion 75 is preferably 0.1 mm or more and 5.0 mm or less. When the width of the convex portion 75 is less than 0.1 mm, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable. On the other hand, when the width of the convex portion 75 exceeds 5.0 mm, the winding action becomes too strong at the moment when the front end portion M1 of the glass chopped strand mat M comes into contact with the surface of the winding core 72, and thus the wound portion remains wound. The winding misalignment, the glass chopped strand mat M may be wrinkled, the winding shape of the entire wound body R may be extremely deteriorated, and the amount of resin to be used increases and the cost increases.
　線形状の凸部７５の厚さ（高さ）寸法は、０．１ｍｍ以上、２．０ｍｍ以下であることが好ましい。凸部７５の厚さが０．１ｍｍ未満の場合、巻芯７２に安定的にガラスチョップドストランドマットＭを巻きつけることが難しくなるため好ましくない。一方、凸部７５の厚さが２．０ｍｍを超える場合、ガラスチョップドストランドマットＭの先端部Ｍ１が巻芯７２の表面に接した瞬間に巻き付け作用が強く働き過ぎるため、歪んだまま巻き取られて巻ズレやガラスチョップドストランドマットＭにしわが入ったり、巻回体Ｒ全体の巻姿が極度に悪くなったり、使用する樹脂量が多くなりコストが増加する。さらには巻き芯の凹凸が大きくなり過ぎ、ガラスチョップドストランドマットＭの表面を傷つけたりする。 The thickness (height) of the linear convex portion 75 is preferably 0.1 mm or more and 2.0 mm or less. When the thickness of the convex portion 75 is less than 0.1 mm, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable. On the other hand, when the thickness of the convex portion 75 exceeds 2.0 mm, the winding action becomes too strong at the moment when the front end portion M1 of the glass chopped strand mat M comes into contact with the surface of the winding core 72, and thus the winding is performed while being distorted. As a result, the winding misalignment, the glass chopped strand mat M is wrinkled, the winding shape of the entire wound body R is extremely deteriorated, the amount of resin used is increased, and the cost is increased. Furthermore, the unevenness of the winding core becomes too large, which may damage the surface of the glass chopped strand mat M.
　また、凸部７５を点状とする場合、凸部７５を構成する1個の点の面積は、０．５ｍｍ２以上、１５ｍｍ２以下であることが好ましい。凸部７５の面積が０．５ｍｍ２未満の場合、巻芯７２に安定的にガラスチョップドストランドマットＭを巻きつけることが難しくなるため好ましくない。一方、凸部７５の面積が１５ｍｍ２を超える場合、使用する樹脂量が多くなりコストが増加する。 Further, when the convex portion 75 has a dot shape, the area of one point forming the convex portion 75 is preferably 0.5 mm 2 or more and 15 mm 2 or less. If the area of the convex portion 75 is less than 0.5 mm 2, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable. On the other hand, when the area of the convex portion 75 exceeds 15 mm 2 , the amount of resin used increases and the cost increases.
　点状の凸部７５の厚さ（高さ）寸法は、０．１ｍｍ以上、２．０ｍｍ以下であることが好ましい。凸部７５の厚さが０．１ｍｍ未満の場合、巻芯７２に安定的にガラスチョップドストランドマットＭを巻きつけることが難しくなるため好ましくない。一方、凸部７５の厚さが２．０ｍｍを超える場合、使用する樹脂量が多くなりコストが増加する。さらには巻き芯の凹凸が大きくなり過ぎ、ガラスチョップドストランドマットＭの表面を傷つけたりする。 The thickness (height) dimension of the dot-shaped convex portion 75 is preferably 0.1 mm or more and 2.0 mm or less. When the thickness of the convex portion 75 is less than 0.1 mm, it is difficult to stably wind the glass chopped strand mat M around the winding core 72, which is not preferable. On the other hand, when the thickness of the convex portion 75 exceeds 2.0 mm, the amount of resin used increases and the cost increases. Furthermore, the unevenness of the winding core becomes too large, which may damage the surface of the glass chopped strand mat M.
　例えば、凸部７５を巻芯７２の外周面７２ａに設けることにより凹凸領域Ａを形成する場合、巻芯７２の外周面７２ａにおいて凹凸領域Ａの占める範囲は、図２に示すように、巻芯７２の中心軸方向に沿った全幅に亘ってもよく、巻芯７２の全幅の半分程度でもあってもよい。また、凹凸領域Ａを幅方向に沿って複数に分割して形成してもよい。凹凸領域Ａの占める範囲としては、巻芯７２の外周面７２ａ全体に対して、好ましくは６０％以下であることがよい。また、本実施形態のように凹凸領域Ａを巻芯７２の周方向に対し、２箇所以上形成することで、巻芯７２の回転時の接触機会を増やして、ガラスチョップドストランドマットＭを巻芯７２により確実に巻きつけることが可能となる。 For example, when the unevenness area A is formed by providing the convex portion 75 on the outer peripheral surface 72a of the winding core 72, the range occupied by the unevenness area A on the outer peripheral surface 72a of the winding core 72 is as shown in FIG. It may extend over the entire width of the core 72 in the central axis direction, or may be about half the overall width of the winding core 72. Further, the concavo-convex region A may be formed by being divided into a plurality along the width direction. The range occupied by the concavo-convex region A is preferably 60% or less with respect to the entire outer peripheral surface 72a of the winding core 72. Further, as in the present embodiment, the concavo-convex region A is formed at two or more locations in the circumferential direction of the winding core 72, so that the contact opportunities during rotation of the winding core 72 are increased and the glass chopped strand mat M is wound around the winding core 72. 72 enables reliable winding.
　上述した動摩擦係数に設定する為の手段としては、具体的には巻芯７２の外周に用いる上貼り紙の表面を、動摩擦係数の大きいクラフト紙とするのが好ましい。
　クラフト紙の種類や厚みによっても動摩擦係数が変化するため、ガラスチョップドストランドマットＭに適したクラフト紙を選定するのがよい。
　また、ガラスチョップドストランドマットＭの表面を傷つけ難くするために、巻芯７２の外周面７２ａは同一の素材で覆われることが好ましい。 As a means for setting the above-mentioned dynamic friction coefficient, specifically, it is preferable to use kraft paper having a large dynamic friction coefficient on the surface of the top-coated paper used on the outer circumference of the winding core 72.
Since the dynamic friction coefficient changes depending on the type and thickness of kraft paper, it is preferable to select a kraft paper suitable for the glass chopped strand mat M.
Further, in order to prevent the surface of the glass chopped strand mat M from being easily damaged, the outer peripheral surface 72a of the winding core 72 is preferably covered with the same material.
　なお、ガラスチョップドストランドマットＭの目付は６０ｇ／ｍ２以上、１５０ｇ／ｍ２以下であることが好ましい。
　目付が６０ｇ／ｍ２未満である場合、ガラスチョップドストランドマットＭの表面の摩擦係数が小さくなるとともに、ガラスチョップドストランドマットＭの剛性が低下ししわが入りやすくなるため、巻芯７２に安定して巻き取ることが難しい。
　一方、目付が１５０ｇ／ｍ２以上であると、マットの剛性が向上するため、ガラスチョップドストランドマットＭが巻芯７２の回転に追従して巻き込まれ難くなったり、巻ズレが増加する。
　また、ガラスチョップドストランドマットＭの目付は、より好ましくは７０ｇ／ｍ２以上、１４５ｇ／ｍ２以下である。 The basis weight of the glass chopped strand mat M is preferably 60 g/m 2 or more and 150 g/m 2 or less.
When the basis weight is less than 60 g/m 2 , the coefficient of friction of the surface of the glass chopped strand mat M becomes small, and the rigidity of the glass chopped strand mat M becomes low and wrinkles easily occur, so that the core 72 is stably maintained. It is difficult to wind up.
On the other hand, when the basis weight is 150 g/m 2 or more, the rigidity of the mat is improved, so that it becomes difficult for the glass chopped strand mat M to be wound up following the rotation of the winding core 72, or the winding deviation increases.
The basis weight of the glass chopped strand mat M is more preferably 70 g/m 2 or more and 145 g/m 2 or less.
　また、本実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒの形成方法では、ガラスチョップドストランドマットＭにおける結着剤Ｐの含有量が５．０～１３．０質量％であるが好ましい。
　即ち、結着剤が５．０質量％未満であると結着剤としての効果が発揮できず、結着剤が１３．０質量％を超えると巻芯７２の外周面７２ａに対して滑り易くなるため安定して巻芯へ巻き付けにくくなるからである。 Further, in the method for forming the wound body R of the glass chopped strand mat M according to this embodiment, the content of the binder P in the glass chopped strand mat M is preferably 5.0 to 13.0 mass %.
That is, if the amount of the binder is less than 5.0% by mass, the effect as the binder cannot be exhibited, and if the amount of the binder exceeds 13.0% by mass, the core 72 easily slips on the outer peripheral surface 72a. Therefore, it becomes difficult to stably wind around the winding core.
　また、本実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒの形成方法では、巻芯７２の外径寸法が５０～１５０ｍｍであることが好ましい。
　即ち、巻芯７２の外径寸法が５０ｍｍ未満の場合、ガラスチョップドストランドマットＭの巻取り効率が悪化し、巻芯７２の外径寸法が１５０ｍｍを超えると巻芯自体の嵩が大きくなり巻回体Ｒのハンドリングが悪化するからである。 Further, in the method for forming the wound body R of the glass chopped strand mat M according to the present embodiment, it is preferable that the outer diameter of the winding core 72 is 50 to 150 mm.
That is, when the outer diameter dimension of the winding core 72 is less than 50 mm, the winding efficiency of the glass chopped strand mat M deteriorates, and when the outer diameter dimension of the winding core 72 exceeds 150 mm, the volume of the winding core itself becomes large, and This is because the handling of the body R deteriorates.
　本発明の一実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒは、主に、上述の方法により形成することができる。 The wound body R of the glass chopped strand mat M according to the embodiment of the present invention can be formed mainly by the method described above.
　ガラスチョップドストランドマットＭの巻回体Ｒは、巻芯７２と、巻芯７２に巻回されたロール状のガラスチョップドストランドとを有するガラスチョップドストランドマットＭの巻回体Ｒであって、巻芯７２の外周面７２ａには、当該外周面７２ａに対して樹脂を塗布することで形成される凸状で粘着性を有する凸部７５と粘着性を有しない凹部７６からなる凹凸領域Ａを有する。このガラスチョップドストランドマットＭの巻回体Ｒは、凹凸領域Ａが粘着性を有する凸部７５と粘着性を有しない凹部７６で構成されているため、ガラスチョップドストランドマットＭの巻回体ＲからガラスチョップドストランドマットＭを引き出して使い切る際に、引き出したガラスチョップドストランドマットＭが引っ張られても、ガラスチョップドストランドマットＭが巻芯７２から容易に離れるため、破れ等の損傷の発生を防ぐことができる。 The winding body R of the glass chopped strand mat M is a winding body R of the glass chopped strand mat M having a winding core 72 and a roll-shaped glass chopped strand wound around the winding core 72. The outer peripheral surface 72a of 72 has a concavo-convex region A composed of a convex convex portion 75 having adhesiveness and a concave portion 76 having no adhesiveness, which are formed by applying a resin to the outer peripheral surface 72a. Since the winding body R of the glass chopped strand mat M is composed of the convex portion 75 having adhesiveness and the concave portion 76 having no adhesiveness, the winding body R of the glass chopped strand mat M is When the glass chopped strand mat M is pulled out and used up, even if the pulled glass chopped strand mat M is pulled, the glass chopped strand mat M easily separates from the winding core 72, so that damage such as tearing can be prevented. it can.
　また、凹凸領域Ａは、略スパイラル状に形成された樹脂である。これにより、凸部７５が略スパイラル状に形成されたことで、粘着性を有する凸部７５と粘着性を有しない凹部７６からなる凹凸領域Ａを一体的に設けることができる。 The concavo-convex area A is a resin formed in a substantially spiral shape. As a result, since the convex portion 75 is formed in a substantially spiral shape, it is possible to integrally provide the uneven region A including the convex portion 75 having adhesiveness and the concave portion 76 having no adhesiveness.
　次に、本発明を更に具体的に説明するために実施例を述べるが、本発明はこれらに限定されるものではなく、特許請求の範囲内において各種の応用が行えるものである。 Next, examples will be described in order to describe the present invention more specifically, but the present invention is not limited to these, and various applications can be made within the scope of the claims.
　［巻回体の巻き付け状態の評価］
　上述した巻取装置７０を用いて、ガラスチョップドストランドマットＭの目付、凸部を構成する樹脂の種類、及び凹凸領域の個数等の各巻取り条件を変えて巻き付けを行い、以下の実施例及び比較例に示すガラスチョップドストランドマットＭの巻回体Ｒを作製した。 [Evaluation of winding state of wound body]
Using the winding device 70 described above, winding was performed by changing each winding condition such as the areal weight of the glass chopped strand mat M, the type of resin forming the convex portion, and the number of uneven regions, and the following examples and comparisons were made. A wound body R of the glass chopped strand mat M shown in the example was produced.
　［実施例及び比較例］
　（実施例１）
　巻芯の幅：１．４４ｍ、巻芯の内径：１０２ｍｍ、巻芯の外径：１０７ｍｍの紙製の巻芯の全幅に亘って、滑り傾斜角度が４５度であるポリプロピレン樹脂（ＰＰ）をスパイラル状に塗布硬化して凹凸領域Ａを形成した。また、凹凸領域Ａの巻芯の周方向の幅寸法は３０ｍｍであり、凹凸領域Ａを巻芯の外周面の径方向両端に２本設けた（図２参照）。 [Examples and Comparative Examples]
(Example 1)
Spiral polypropylene resin (PP) with a sliding inclination angle of 45 degrees over the entire width of a paper core having a core width of 1.44 m, a core inner diameter of 102 mm, and a core outer diameter of 107 mm. Then, it was applied and cured in the shape of a circle to form an uneven region A. In addition, the circumferential width of the winding core of the concavo-convex area A was 30 mm, and two concavo-convex areas A were provided at both ends in the radial direction of the outer peripheral surface of the winding core (see FIG. 2).
　巻芯の外周面の部分とガラスチョップドストランドマットとの動摩擦係数は０．２８であった。この巻芯を用いて、マット目付１３０ｇ／ｍ２、幅１．４４ｍのガラスチョップドストランドマットＭをマットの巻き付け速度４０ｍ／分で巻き付けて巻回体を作製した。 The coefficient of dynamic friction between the outer peripheral surface of the winding core and the glass chopped strand mat was 0.28. Using this core, a glass chopped strand mat M having a mat weight of 130 g/m 2 and a width of 1.44 m was wound at a mat winding speed of 40 m/min to prepare a wound body.
　（実施例２）
　マット目付を１０７ｇ／ｍ２としたこと以外は、実施例１と同じ条件で巻回体を作製した。 (Example 2)
A wound body was produced under the same conditions as in Example 1 except that the mat weight was 107 g/m 2 .
　（実施例３）
　マット目付を８０ｇ／ｍ２としたこと以外は、実施例１と同じ条件で巻回体を作製した。 (Example 3)
A wound body was produced under the same conditions as in Example 1 except that the mat weight was 80 g/m 2 .
　（実施例４）
　凹凸領域Ａを巻芯の外周面において周方向に等間隔に４本設けたこと以外は、実施例２と同じ条件で巻回体を作製した。 (Example 4)
A wound body was produced under the same conditions as in Example 2 except that four uneven areas A were provided on the outer peripheral surface of the winding core at equal intervals in the circumferential direction.
　（実施例５）
　凹凸領域Ａを巻芯の外周面に１本設けたこと以外は、実施例２と同じ条件で巻回体を作製した。 (Example 5)
A wound body was produced under the same conditions as in Example 2 except that one uneven region A was provided on the outer peripheral surface of the winding core.
　（実施例６）
　滑り傾斜角度が３５度であるエチレン酢酸ビニル共重合体樹脂（ＥＶＡ）を塗布硬化して凹凸領域Ａを形成したこと以外は、実施例２と同じ条件で巻回体を作製した。 (Example 6)
A wound body was produced under the same conditions as in Example 2 except that the ethylene-vinyl acetate copolymer resin (EVA) having a sliding inclination angle of 35 degrees was applied and cured to form the uneven region A.
　（実施例７）
　滑り傾斜角度が３０度であるエチレン酢酸ビニル共重合体樹脂（ＥＶＡ）を塗布硬化して凹凸領域Ａを形成したこと以外は、実施例２と同じ条件で巻回体を作製した。 (Example 7)
A wound body was produced under the same conditions as in Example 2 except that the uneven region A was formed by applying and curing an ethylene vinyl acetate copolymer resin (EVA) having a slip inclination angle of 30 degrees.
　（比較例１）
　凹凸領域Ａを形成しなかったこと以外は、実施例１と同じ条件で巻回体を作製した。 (Comparative Example 1)
A wound body was produced under the same conditions as in Example 1 except that the uneven area A was not formed.
　ガラスチョップドストランドマットの巻回体の巻き付け状態（巻き付け時のだぶつき、巻芯に対するずれ（巻ズレ）、マットを引き出した際のしわの有無に基づいて評価した巻芯への巻き付け性）、及びマットを引き出した際の破れについて目視評価を行った。上記各実施例及び比較例における巻回体の評価結果を表１に示す。 The winding state of the winding body of the glass chopped strand mat (looseness during winding, misalignment with the winding core (winding misalignment), winding performance around the winding core evaluated based on the presence or absence of wrinkles when the mat is pulled out), and A visual evaluation was performed regarding the breakage when the mat was pulled out. Table 1 shows the evaluation results of the wound body in each of the above Examples and Comparative Examples.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　（判定基準：破れ）
　　○　：破れなく巻芯からガラスチョップドストランドマットを引き出すことができた
　　△　：引き出し時にガラスチョップドストランドマットの一部が破れたが、品質上問題無し
　　×　：引き出し時に全幅に亘りガラスチョップドストランドマットが破れ、品質上問題あり (Criteria: Break)
○: The glass chopped strand mat could be pulled out from the core without tearing △: Part of the glass chopped strand mat was torn when pulled out, but there was no quality problem ×: The glass chopped strand mat was torn over the entire width when pulled out , There is a quality problem
　（判定基準：巻き付け性）
　　◎　：だぶつき、巻ズレ、しわの発生が無く、巻き付け性が非常に良好
　　△　：若干のだぶつき、巻ズレ、しわの発生があるものの、品質上問題無し
　　×　：だぶつき、巻ズレ、しわの発生があり、品質上問題あり (Criteria: Wrapability)
⊚: No bulging, winding misalignment, wrinkles, and very good winding property △: Slight slackness, winding misalignment, wrinkling, but no quality problem ×: Looseness, misalignment, wrinkling There is a problem with quality
　なお、ガラスチョップドストランドマットの巻回体の形成方法は、以下のように、ガラスチョップドストランドマットＭの巻回体Ｒの製造方法にも適用可能である。
　本発明の一実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒの製造方法について、上述した製造装置１を用いて説明する。
　本発明の一実施形態に係るガラスチョップドストランドマットＭの製造方法は、製造装置１によって実現することができる。 The method of forming the wound body of the glass chopped strand mat is also applicable to the method of manufacturing the wound body R of the glass chopped strand mat M as described below.
A method of manufacturing the wound body R of the glass chopped strand mat M according to the embodiment of the present invention will be described using the manufacturing apparatus 1 described above.
The manufacturing method of the glass chopped strand mat M according to the embodiment of the present invention can be realized by the manufacturing apparatus 1.
　図１に示す如く、本実施形態に係るガラスチョップドストランドマットＭの巻回体Ｒの製造方法では、先ず始めに第一コンベア２１の第一搬送ベルトＢ１上にガラスチョップドストランドＳ・Ｓ・・・を堆積させる工程（ＳＴＥＰ－１）を行う。 As shown in FIG. 1, in the method of manufacturing the wound body R of the glass chopped strand mat M according to the present embodiment, first, the glass chopped strands S, S... On the first conveyor belt B1 of the first conveyor 21. Is carried out (STEP-1).
　次に、第二搬送ベルトＢ２上のガラスチョップドストランドＳ・Ｓ・・・に結着剤Ｐを付与する工程（ＳＴＥＰ－２）を行う。 Next, a step (STEP-2) of applying the binder P to the glass chopped strands S·S on the second conveyor belt B2 is performed.
　次に、第三搬送ベルトＢ３上の結着剤Ｐを加熱溶融する工程（ＳＴＥＰ－３）を行う。 Next, a step (STEP-3) of heating and melting the binder P on the third conveyor belt B3 is performed.
　次に、加熱溶融された結着剤Ｐを有するガラスチョップドストランドＳ・Ｓ・・・を冷却して結着剤Ｐを硬化させる工程（ＳＴＥＰ－４）を行う。 Next, a step (STEP-4) of hardening the binder P by cooling the glass chopped strands S, S... Having the binder P heated and melted is performed.
　次に、上述した巻取装置７０を用いたガラスチョップドストランドマットＭの巻回体Ｒの製造方法によりガラスチョップドストランドマットＭを巻芯７２に巻き取って巻回体Ｒを形成する工程（ＳＴＥＰ－５）を行う。本工程においては、巻芯７２を巻取装置７０に取り付ける前に、巻芯７２の外周面７２ａに上述したようにホットメルト樹脂を略スパイラル状に塗布硬化して巻芯７２の外周面７２ａに凹凸領域Ａを形成する工程を有する。 Next, a step of winding the glass chopped strand mat M around the winding core 72 to form the wound body R by the method of manufacturing the wound body R of the glass chopped strand mat M using the winding device 70 described above (STEP- Perform 5). In this step, before attaching the winding core 72 to the winding device 70, the outer peripheral surface 72a of the winding core 72 is coated with the hot-melt resin in a substantially spiral shape as described above to cure the outer peripheral surface 72a of the winding core 72. There is a step of forming the uneven region A.
　このような構成によれば、巻回体Ｒを形成する工程（ＳＴＥＰ－５）において、巻芯７２とガラスチョップドストランドマットＭの先端部Ｍ１とを粘着するための凹凸領域Ａを巻芯７２の外周面７２ａに形成したことで、ガラスチョップドストランドマットＭの先端部Ｍ１もしくはその近傍部分を巻芯７２の外周面７２ａに粘着するとともに直接巻芯７２へ巻き付けて確実に巻回体Ｒを形成することが可能となり、マットの巻ズレやしわの発生を抑制した、巻姿が良好な巻回体Ｒを効率的に生産できる。 According to such a configuration, in the step of forming the wound body R (STEP-5), the concavo-convex area A for adhering the winding core 72 and the tip M1 of the glass chopped strand mat M is formed on the winding core 72. By forming on the outer peripheral surface 72a, the tip M1 of the glass chopped strand mat M or its vicinity is adhered to the outer peripheral surface 72a of the winding core 72 and is directly wound around the winding core 72 to form the wound body R reliably. This makes it possible to efficiently produce a wound body R having a good winding shape, which suppresses the occurrence of wrinkling and wrinkling of the mat.
　本発明によるガラスチョップドストランドの巻回体の形成方法は、紙、高分子フィルム、布、金属ウェブなどの可撓性を有するウェブ、及びその支持体に塗布液を塗布した元巻ウェブを裁断した帯状材料を巻芯に巻き取って巻回体（ロール状物）を製作する際に利用可能であり、例えば、各種紙塗工、接着及び粘着材料、電気及び電子部品材料等の裁断、巻き付け工程に活用できる。 The method for forming a wound body of glass chopped strands according to the present invention is to cut a flexible web such as paper, polymer film, cloth, and metal web, and an original web obtained by applying a coating liquid to its support. It can be used to manufacture a wound body (rolled material) by winding a strip-shaped material around a winding core, and for example, various paper coating, adhesive and adhesive materials, cutting and winding processes of electric and electronic component materials, etc. Can be used for.
　７０　巻取装置
　７２　巻芯
　７２ａ　外周面
　７５　凸部
　７６　凹部
　Ａ　　凹凸領域
　Ｓ　　ガラスチョップドストランド
　Ｍ　　ガラスチョップドストランドマット
　Ｍ１　先端部
　Ｒ　　巻回体 70 winding device 72 winding core 72a outer peripheral surface 75 convex portion 76 concave portion A concave/convex area S glass chopped strand M glass chopped strand mat M1 tip portion R winding body

Claims (9)

  1. 　ガラスチョップドストランドを含む帯状のガラスチョップドストランドマットの巻回体の形成方法であって、
    　前記ガラスチョップドストランドマットの先端部の少なくとも一部を巻芯の外周面に沿って接触させて前記巻芯を回転させることで、前記ガラスチョップドストランドマットをロール状に巻き取り巻回体を形成する工程を備え、
    　前記巻芯の外周面には凹凸領域が形成され、前記凹凸領域の凸部は粘着性を有し、前記凹部は粘着性を有さない、
    　ことを特徴とするガラスチョップドストランドマットの巻回体の形成方法。     A method for forming a wound body of a band-shaped glass chopped strand mat containing glass chopped strands,
    By rotating at least part of the tip of the glass chopped strand mat along the outer peripheral surface of the winding core to rotate the winding core, the glass chopped strand mat is wound into a roll to form a wound body. Equipped with processes
    An uneven region is formed on the outer peripheral surface of the winding core, the convex portion of the uneven region has adhesiveness, and the concave portion does not have adhesiveness,
    A method of forming a wound body of a glass chopped strand mat, comprising:
  2. 　前記凸部は、前記巻芯の外周面に前記樹脂を線状または点状に塗布することで形成される、
    　ことを特徴とする請求項１に記載のガラスチョップドストランドマットの巻回体の形成方法。     The convex portion is formed by applying the resin in a linear or dot shape on the outer peripheral surface of the winding core,
    The method for forming a wound body of a glass chopped strand mat according to claim 1, characterized in that.
  3. 　前記樹脂は、ホットメルト樹脂である、
    　ことを特徴とする請求項１または請求項２に記載のガラスチョップドストランドマットの巻回体の形成方法。     The resin is a hot melt resin,
    The method for forming a wound body of a glass chopped strand mat according to claim 1 or 2, characterized in that.
  4. 　前記ホットメルト樹脂を塗工して重ねた試験基材は、ＪＩＳ　Ｐ　８１４７（２０１０年）の傾斜法に準拠して測定された滑り傾斜角が４０度以上である、
    　ことを特徴とする請求項３に記載のガラスチョップドストランドマットの巻回体の形成方法。     The test base material coated with the hot-melt resin and laminated has a sliding inclination angle of 40 degrees or more measured according to the inclination method of JIS P 8147 (2010).
    The method for forming a wound body of a glass chopped strand mat according to claim 3, wherein.
  5. 　前記巻芯の外周面は、
    　前記ガラスチョップドストランドマットとの間における、ＪＩＳ　Ｋ　７１２５（１９９９年）に規定された動摩擦係数が、０．１５～０．３５である非粘着面を有する、
    　ことを特徴とする請求項１～請求項４の何れか一項に記載のガラスチョップドストランドマットの巻回体の形成方法。     The outer peripheral surface of the core is
    A non-adhesive surface having a dynamic friction coefficient of 0.15 to 0.35 defined in JIS K 7125 (1999) between the glass chopped strand mat and
    The method for forming a wound body of a glass chopped strand mat according to any one of claims 1 to 4, wherein
  6. 　前記ガラスチョップドストランドマットの目付は、６０ｇ／ｍ２～１５０ｇ／ｍ２である、
    　ことを特徴する請求項１～請求項５の何れか一項に記載のガラスチョップドストランドマットの巻回体の形成方法。     The basis weight of the glass chopped strand mat is 60 g/m 2 to 150 g/m 2 .
    The method for forming a wound body of a glass chopped strand mat according to any one of claims 1 to 5.
  7. 　前記ガラスチョップドストランドマットの巻き取る際の巻き付け速度は、４０ｍ／分～１００ｍ／分である、
    　ことを特徴とする請求項１～請求項６の何れか一項に記載のガラスチョップドストランドマットの巻回体の形成方法。     The winding speed at the time of winding the glass chopped strand mat is 40 m/min to 100 m/min,
    The method for forming a wound body of a glass chopped strand mat according to any one of claims 1 to 6, wherein
  8. 　巻芯と、前記巻芯に巻回されたロール状のガラスチョップドストランドとを有するガラスチョップドストランドマットの巻回体であって、
    　前記巻芯の外周面には凹凸領域が形成され、前記凹凸領域の凸部は粘着性を有し、前記凹部は粘着性を有さない、
    　ことを特徴とするガラスチョップドストランドマットの巻回体。     A winding body of a glass chopped strand mat having a winding core and a roll-shaped glass chopped strand wound around the winding core,
    An uneven region is formed on the outer peripheral surface of the winding core, the convex portion of the uneven region has adhesiveness, and the concave portion does not have adhesiveness,
    A wound body of glass chopped strand mat, which is characterized in that
  9. 　前記凸部は、線状または点状に形成された樹脂である、
    　ことを特徴とする請求項８に記載のガラスチョップドストランドマットの巻回体。     The convex portion is a resin formed in a linear shape or a dot shape,
    The wound body of the glass chopped strand mat according to claim 8, which is characterized in that.
PCT/JP2019/043589 2018-12-20 2019-11-07 Method for forming body by winding glass chopped strand mat, and body formed by winding glass chopped strand mat WO2020129447A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0451830A (en) * 1990-06-15 1992-02-20 C I Kasei Co Ltd Preparation of polyvinyl chloride film-wound article for agriculture
JP2002003083A (en) * 2000-06-21 2002-01-09 Konica Corp Optical film web, its preserving method and its transporting method
JP2009012952A (en) * 2007-07-06 2009-01-22 Takatomo Sangyo:Kk Winding core
JP2009154996A (en) * 2007-12-25 2009-07-16 Nippon Electric Glass Co Ltd Manufacturing process of glass fiber sheet-like object winding device and glass fiber sheet-like object winding body
JP2017078244A (en) * 2015-10-22 2017-04-27 日本電気硝子株式会社 Glass chopped strand mat and automobile molded ceiling material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119563A (en) * 1981-12-29 1983-07-16 Nippon Glass Seni Kk Method of winding glass fiber cloth
JPH05100361A (en) * 1991-10-07 1993-04-23 Mitsubishi Paper Mills Ltd Method for combining photosensitive strip and core
JP2006282293A (en) * 2005-03-31 2006-10-19 Mitsubishi Paper Mills Ltd Rolled material winding method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0451830A (en) * 1990-06-15 1992-02-20 C I Kasei Co Ltd Preparation of polyvinyl chloride film-wound article for agriculture
JP2002003083A (en) * 2000-06-21 2002-01-09 Konica Corp Optical film web, its preserving method and its transporting method
JP2009012952A (en) * 2007-07-06 2009-01-22 Takatomo Sangyo:Kk Winding core
JP2009154996A (en) * 2007-12-25 2009-07-16 Nippon Electric Glass Co Ltd Manufacturing process of glass fiber sheet-like object winding device and glass fiber sheet-like object winding body
JP2017078244A (en) * 2015-10-22 2017-04-27 日本電気硝子株式会社 Glass chopped strand mat and automobile molded ceiling material

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