WO2015072412A1 - Rouleau en caoutchouc de film - Google Patents

Rouleau en caoutchouc de film Download PDF

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Publication number
WO2015072412A1
WO2015072412A1 PCT/JP2014/079628 JP2014079628W WO2015072412A1 WO 2015072412 A1 WO2015072412 A1 WO 2015072412A1 JP 2014079628 W JP2014079628 W JP 2014079628W WO 2015072412 A1 WO2015072412 A1 WO 2015072412A1
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WIPO (PCT)
Prior art keywords
rubber
film
roll
coating layer
rubber roll
Prior art date
Application number
PCT/JP2014/079628
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English (en)
Japanese (ja)
Inventor
宣旭 須和
Original Assignee
株式会社金陽社
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 株式会社金陽社 filed Critical 株式会社金陽社
Priority to KR1020167013019A priority Critical patent/KR101689278B1/ko
Priority to CN201480062713.9A priority patent/CN105793178B/zh
Publication of WO2015072412A1 publication Critical patent/WO2015072412A1/fr

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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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/18—Homopolymers or copolymers of nitriles
    • C08L33/20—Homopolymers or copolymers of acrylonitrile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/10—Materials
    • B65H2401/11—Polymer compositions
    • B65H2401/111—Elastomer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/56—Flexible surface
    • B65H2404/563—Elastic, supple built-up surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/254—Permanent deformation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1848—Dimensional aspect
    • B65H2701/18482—Proportion
    • B65H2701/18483—Diameter much larger than width, e.g. audio/video tape bobbin

Definitions

  • the present invention relates to a rubber roll for film.
  • the film is a thin-film artificial object formed using a polymer compound as a main raw material.
  • Packaging, optical, photographic and cinematographic films and films having specific functionality are widely used in various applications.
  • General film production methods include, for example, a stretching method, a calendar method, a melt extrusion molding method, and a solution pouring method. If necessary, the manufactured film is further subjected to processing such as secondary processing, surface treatment, and multilayer processing. In the production and processing of such a film, many rubber rolls for handling the film are used.
  • Patent Document 1 discloses an automatic film winding device. With the film automatic winding device, the film is wound on the core and the work accompanying it, for example, the mounting of the core to the winding shaft, winding, cutting of the film after winding, from the winding shaft Ancillary work such as removal is automatically or semi-automatically performed.
  • a film transport roller including a foamed rubber material as a film contact surface is described.
  • optical film For example, many films used in electronic products are intended to obtain a desired effect by transmitting, reflecting and / or absorbing light. Such a film may be generally called an optical film.
  • the optical film has a high demand for dimensional accuracy that can affect optical characteristics, and the elimination of scratches and foreign matters, depending on the purpose of use.
  • the rubber roll rotation speed does not synchronize with the film feed speed, and there are some cases where the film slips and the film is damaged. Has been.
  • the problem of the present invention is that the film can be fed with a low tension so as not to damage the film and to stretch the film by having a stable grip force on the film. It is providing the rubber roll for films which can do.
  • a rubber roll for film for solving the above problems comprises a roll body and a coating layer provided as an outermost layer on the roll body, and the coating layer is dispersed in a rubber material and the rubber material.
  • the opening end surface is flush with the surface of the coating layer, and the lumen surface of the opened micro hollow body forms a concave portion of the surface of the coating layer.
  • the film can be fed with a low tension so that the film is not scratched or stretched by having a stable gripping force against the film.
  • FIG. 1 is a perspective view of a rubber roll for a film according to an embodiment.
  • FIG. 2 is an enlarged view showing a cross section of the coating layer of the embodiment.
  • FIG. 3 is a schematic diagram showing a step of winding a film into a roll by a film winding device.
  • the rubber roll for film will be described with reference to FIG.
  • the film rubber roll 10 includes a cylindrical roll main body 11, a coating layer 12 that forms the outermost layer of the film rubber roll 10 along the peripheral surface of the roll main body 11, and two rolls extending from both ends of the roll main body 11. Shaft portions 13a and 13b are provided.
  • the material of the roll body 11 may be a high-rigidity material such as carbon FRP, aluminum alloy, stainless steel, and iron, but is preferably carbon FRP.
  • the shaft portions 13a and 13b are generally called journals.
  • the shaft portions 13a and 13b are used to pivotally support both ends of the roll body 11 and / or to be fitted with the driving components, and have a diameter and a length selected for that purpose.
  • the end portions of the shaft portions 13a and 13b may be further processed as desired.
  • the roll main body 11 and the shaft portions 13a and 13b may be formed integrally, or the roll main body 11 and the shaft portions 13a and 13b may be formed as separate parts and further combined.
  • FIG. 2 is an enlarged cross-sectional view of the coating layer 12 of the rubber roll for film of FIG.
  • the covering layer 12 includes a rubber material 121 and a plurality of minute hollow bodies 122.
  • the plurality of minute hollow bodies 122 are dispersed in the rubber material 121.
  • the plurality of minute hollow bodies 122 include a minute hollow body 122 a located on the surface side of the coating layer 12 and a minute hollow body 122 b located on the inner side of the rubber material 121.
  • the micro hollow body 122a is cut by a curved surface along the surface 12a of the coating layer 12, and a part of the micro hollow body 122a is missing and thereby opened. This shape can be referred to as a spherical crown shape.
  • the cut surface of the minute hollow body 122a (that is, the spherical end-shaped opening end surface 122aa) is flush with the surface of the rubber material 121. That is, in the micro hollow body 122a, the concave portion 122c is formed on the surface 12a of the covering layer 12, and the inner surface of the hollow body 122a forms a part of the surface 12a of the covering layer 12.
  • a plurality of minute recesses 122c independent of each other are formed due to the presence of the plurality of opened minute hollow bodies 122a. Due to the plurality of recesses 122c, the surface of the covering layer 12 is rough.
  • the minute hollow body 122b existing inside the rubber material 121 has a spherical shape.
  • the micro hollow body 122b may be a true sphere, or may be a sphere with some distortion that does not affect the diameter distribution.
  • the surface roughness (Ra) of the coating layer 12 is preferably JIS B0601-1994 surface roughness of 0.3 or more, but is not limited thereto.
  • the surface roughness may be, for example, in the range of JIS B0601-1994 surface roughness of 0.3 to 42.00, for example, in the range of 2.50 to 41.50, or 2.75 to 41.25. A range is preferable.
  • the surface roughness of the coating layer 12 may have a distribution of surface roughness values, that is, variations in roughness (hereinafter also referred to as “roughness variations”). Such variation in surface roughness may be median ⁇ 1.0, preferably median ⁇ 0.5, more preferably median ⁇ 0.3.
  • the surface roughness (Ra) of the coating layer 12 is in the range of 0.3 to 42.00, and the variation in the roughness is [median value ⁇ 0.3] to [median value +0.3]. It may be a range. That is, when the range of the median value of the surface roughness of the coating layer 12 is 0.6 to 41.7, the roughness value is distributed on the surface of the coating layer 12 within the range of ⁇ 0.3 from this median value. That is, there may be variations in roughness. If the variation in roughness is in the range of ⁇ 1.0, a stable grip force can be provided within a range that does not hinder the use of the rubber roll. It is preferable that the variation in roughness is small, for example, when the variation in roughness is ⁇ 0.5 or ⁇ 0.3, since a more stable grip force can be provided.
  • the surface roughness (Ra) of the coating layer 12 is measured by a surface roughness measuring instrument corresponding to the JIS B0601-1994 standard. For example, it may be measured with a setting of a cut-off value of 0.8 and the number of sections of 3, for example, by a surface roughness measuring machine manufactured by Mitutoyo Corporation.
  • the specific gravity of the coating layer 12 is less than 1.7, preferably less than 1.1.
  • the specific gravity is preferably as small as possible in the range that can be appropriately used as a rubber roll.
  • the porosity calculated by the above equation may be 10% to 90%, more preferably 20% to 70%, and still more preferably 30% to 60%.
  • the coating layer surface has a recess that can always achieve a certain surface roughness. Therefore, the surface of the coating layer is maintained in a constant state for a long time. Thereby, the stable grip force is achieved over a long period of time.
  • Such a surface structure of the covering layer is suitable for film feeding. That is, the rubber roll does not damage the film due to the characteristics of the coating layer as described above, there is no static electricity unevenness, the film separation is good, and the film is reliable and good even at low tension.
  • the coating layer includes the micro hollow bodies dispersed in the rubber material, the specific gravity of the coating layer is reduced, and as a result, the rubber roll can be rotated with a low torque.
  • the specific gravity is small, no heat is generated even when the rubber roll is rotated / rotated at the time of use, and the expansion of the coating layer is suppressed, so that the rotation speed of the rubber roll can be easily controlled even during use.
  • the rubber roll has sufficient strength for use, there is little or no generation of impurities caused by breakage of the rubber roll.
  • the raw rubber for the rubber material 121 is, for example, natural rubber, isoprene rubber, butadiene rubber, styrene butadiene rubber, acrylonitrile butadiene rubber, butyl rubber, chloroprene rubber, epichlorohydrin rubber, fluorine rubber, ethylene propylene rubber, acrylic rubber, silicone rubber. , Urethane rubber, chlorosulfonated polyethylene, or a combination of any two or more thereof.
  • the hardness of the rubber material 121 is not limited to these, but it is desirable that the JIS A hardness is 90 or less, preferably 30 to 90, more preferably 50 to 80. Even if the JIS A hardness exceeds 90, it may be preferably used as a rubber roll for film depending on other conditions, particularly the material of the raw rubber used.
  • the hardness is measured with a type A durometer corresponding to JIS K6253 standard. Specifically, it may be measured by any instrument that can measure JIS A hardness, for example, a JIS A hardness measuring instrument manufactured by Kobunshi Keiki Co., Ltd.
  • the micro hollow body 122 is formed of, for example, a thermoplastic resin.
  • thermoplastic resins are copolymers of methacrylonitrile and acrylonitrile, homopolymers of vinylidene halide, copolymers containing vinylidene halide as one monomer, fluoroplastics, polyacrylic ether ketone, nitrile resin, polyamideimide , Polyarylate, polybenzimidazole, polycarbonate, thermoplastic polyester, polyetherimide, polyamide, polymethylpentene, chlorinated polyvinyl chloride, or a combination of any two or more thereof.
  • the micro hollow body 122 may be formed, for example, by expanding heat-expandable microspheres having high heat resistance and tolerability with heat.
  • the thermally expandable microsphere includes an outer shell made of a thermoplastic resin, and a foaming agent that is contained in the outer shell and vaporizes when heated.
  • the blowing agent may be any substance that can be vaporized by heating, for example, propane, butane, pentane, hexane, heptane, octane, nonan, decane, undecane, dodecane, and / or tridecane. It may be a linear, branched or alicyclic liquid hydrocarbon.
  • hydrocarbon gas is contained inside the micro hollow body 122 formed by heating thermally expandable microspheres containing liquid hydrocarbons.
  • the average particle diameter of the micro hollow body 122 may be 5 ⁇ m to 500 ⁇ m, and is preferably 10 ⁇ m to 500 ⁇ m.
  • a stable grip force may not be obtained depending on the blending ratio of the rubber material 121 and the micro hollow body 122.
  • the average particle size is less than 10 ⁇ m and the surface roughness (Ra) of the coating layer 12 is less than 0.3, the air contained between the film and the film cannot be sufficiently released at the time of contact. In some cases, air slip occurs and a stable grip force cannot be obtained.
  • a film is handled with such a rubber roll, it is not preferable because slipping of the film cannot be stably prevented.
  • the average particle diameter of the micro hollow body 122 is larger than 500 ⁇ m, it is not preferable because a plurality of uniform concave portions cannot be formed on the surface of the coating layer 12 and the strength of the rubber roll itself cannot be maintained in many cases. .
  • microballoon or plastic microballoon generally known per se.
  • inflated microballoons are commercially available, for example, from Matsumoto Yushi Seiyaku Co., Ltd. as Matsumoto Microsphere® FE and F-DE.
  • Matsumoto Microsphere® FE and F-DE Matsumoto Microsphere® FE and F-DE.
  • the rubber roll for film is manufactured as follows, for example. First, a roll body having a shaft portion as desired and having a desired length and diameter is prepared. Next, the surface of the roll body is blasted. Separately, a rubber material raw material made of a desired material and a fine hollow body are kneaded at a desired blending ratio to produce an unvulcanized rubber sheet. An adhesive is applied to the blasted portion of the roll body, and an unvulcanized rubber sheet is wound around the blasted portion and molded. This is vulcanized. Next, the surface of the vulcanized rubber formed on the peripheral surface of the roll body is polished. Thereby, a coating layer is formed on the peripheral surface of the roll body.
  • a part of the micro hollow body included on the surface side of the rubber material is cut together with the rubber material.
  • the vulcanized rubber surface is polished concentrically with the roll body.
  • the micro hollow body to be cut together with the rubber material is cut by a curved surface along the polished surface, and a part thereof is lost to form an opening. That is, on the surface of the coating layer, a micro hollow body opened so as to be flush with the surface of the coating layer is formed.
  • the lumen surface of the micro hollow body is exposed to the outside through the opening.
  • the rubber material raw material may include a raw rubber and a desired additive such as a vulcanizing agent, a vulcanization aid, an anti-aging agent, a processing aid, a filler and / or a plasticizer.
  • a desired additive such as a vulcanizing agent, a vulcanization aid, an anti-aging agent, a processing aid, a filler and / or a plasticizer.
  • the blending ratio of the raw rubber and the micro hollow body is preferably 1 to 100 parts by weight with respect to 100 parts by weight of the raw rubber, for example.
  • the surface roughness (Ra) of the coating layer 12 is in the range of JIS B0601-1994 surface roughness of 0.3 to 42.00.
  • the value of the porosity of the coating layer 12 may be freely changed by adjusting the average particle diameter and the blending ratio of the micro hollow body.
  • the blending ratio of the raw rubber and the micro hollow body hardly changes in the rubber roll manufacturing process. Therefore, when the raw rubber and the fine hollow body are mixed at a blending ratio of 1 to 100 parts by weight with respect to 100 parts by weight of the raw rubber at the time of production, the same ratio, that is, the rubber material is applied to the rubber roll as the final product. It can be considered that the fine hollow body is dispersed in an amount of 1 to 100 parts by weight with respect to 100 parts by weight.
  • FIG. 3 is a schematic diagram showing a process of winding a film into a roll by a center drive type film winding apparatus.
  • the film winding device 30 includes a guide roll 31, a contact roll 32, and a winding shaft 33. After the cylindrical winding core 35 is fitted on the outer side of the winding shaft 33, the film 34 is wound around the outer periphery of the winding core 35.
  • the guide roll 31 is a roll for supporting the film so as to prevent twisting and sending the film from downstream to upstream in the direction and / or angle to be sent.
  • the contact roll 32 is installed above the core 35 and contacts the outermost surface of the film roll 36 formed by winding the film 34 around the outer periphery of the core 35 with a tangent line. As a result, when the film 34 is newly stacked on the outermost surface of the film roll 36 that has already been formed, the film 34 and the outermost surface of the film roll 36 are prevented from being wrinkled or twisted. Prevent air from entering between.
  • the film rubber roll may be used as a guide roll and / or a contact roll in such a center drive type film winding device. Alternatively, it may be used as any roll used in any other film winding device known per se, such as a surface drive winder. Alternatively, in any apparatus for handling film, it may be used as a roll for contacting and handling the film. That is, the rubber roll for film may be understood as a rubber roll for directly contacting and handling the film in the production or processing of the film.
  • the rubber roll can be used for a long period of time compared to the prior art, is easy to control even at high speed rotation, has a stable grip, reduces the generation of contaminants, reduces the occurrence of scratches on the film, There is no unevenness in static electricity, and it is possible to prevent slipping of the film that may occur when contacting the film.
  • the rubber roll for film can be preferably used as any roll that comes into contact with the film during production and / or processing of the film.
  • a rubber material, a micro hollow body, and a metal core were prepared.
  • the rubber material is made of 100 parts by weight of acrylonitrile butadiene rubber (NBR polymer) as raw rubber, 5 parts by weight of zinc oxide, 1 part by weight of stearic acid, 60 parts by weight of silica, bis (2-ethylhexyl) phthalate ( 40 parts by weight of DOP), 1 part by weight of 2,6-di-tert-butyl-4-methylphenol (BHT), and N-cyclohexyl-2-benzothiazolesulfenamide (CBS) as a vulcanization accelerator. 1 part by weight and 1.5 parts by weight of sulfur.
  • a micro balloon having an average particle diameter of 100 ⁇ m manufactured by Matsumoto Yushi Seiyaku Co., Ltd. was used as the micro hollow body.
  • a core made of carbon FRP having a roll body and shaft portions at both ends thereof was prepared.
  • the outer diameter of the roll body was 50 mm and the length was 450 mm.
  • a rubber material raw material and 1 part by weight of a microballoon were kneaded to prepare an unvulcanized rubber sheet.
  • the peripheral surface of the core metal roll body was blasted.
  • An adhesive was applied to the blasted portion, an unvulcanized rubber sheet was wound around the portion, molded, and vulcanized.
  • the vulcanized rubber surface formed on the peripheral surface of the roll body was polished. Thereby, a rubber roll was obtained. This was used for the following tests as a rubber roll of Example 1.
  • the outer diameter of the rubber roll was 70 mm.
  • Example 2 A rubber roll was formed by the same method and material as in Example 1 except that 10 parts by weight of a microballoon having an average particle size of 100 ⁇ m was used. This was used for the following tests as a rubber roll of Example 2. The outer diameter of the rubber roll was 70 mm.
  • Example 3 A rubber roll was formed by the same method and material as in Example 1 except that 40 parts by weight of a microballoon having an average particle size of 100 ⁇ m was used. This was used in the following test as a rubber roll of Example 3. The outer diameter of the rubber roll was 70 mm.
  • Example 4 A rubber roll was formed by the same method and the same material as in Example 1 except that 100 parts by weight of the microballoon having an average particle size of 100 ⁇ m was used. This was used in the following test as a rubber roll of Example 4. The outer diameter of the rubber roll was 70 mm.
  • Example 5 A rubber roll was formed in the same manner as in Example 1 except that the amount of microballoons having an average particle size of 100 ⁇ m was used at 110 parts by weight. This was used in the following test as a rubber roll of Example 5. The outer diameter of the rubber roll was 70 mm.
  • Example 6 A rubber roll was formed by the same method and material as in Example 1 except that 110 parts by weight of a microballoon having an average particle diameter of 5 ⁇ m was used. This was used in the following test as a rubber roll of Example 6. The outer diameter of the rubber roll was 70 mm.
  • Example 7 A rubber roll was formed by the same method and material as in Example 1 except that the amount of the microballoon having an average particle diameter of 500 ⁇ m was used at 10 parts by weight. This was used for the following tests as a rubber roll of Example 7. The outer diameter of the rubber roll was 70 mm.
  • Comparative Example 1 A rubber roll was formed by the same method and the same material and blending as in Example 1 except that the microballoon was not used. This was used in the following test as a rubber roll of Comparative Example 1. The outer diameter of the rubber roll was 70 mm.
  • Comparative Example 2 A rubber roll was formed by the same method and the same material as in Example 1 except that 10 parts by weight of a microballoon having an average particle diameter of 5 ⁇ m was used. This was used in the following test as a rubber roll of Comparative Example 2. The outer diameter of the rubber roll was 70 mm.
  • Comparative Example 3 Except for using 10 parts by weight of a microballoon having an average particle diameter of 600 ⁇ m, an attempt was made to form a rubber roll by the same method and method as in Example 1, but the coating layer was cracked to form a rubber roll. I could't.
  • Comparative Example 4 As the core metal, a core body made of carbon FRP having a roll body and shaft portions at both ends thereof was prepared. The outer diameter of the roll body was 50 mm and the length was 450 mm. A concavo-convex polymer tape (Kureha elastomer rubber strip KS-3) is spirally formed in the axial direction of the roll main body and the ends of the concavo-convex polymer tape adjacent to each other on the peripheral surface are in contact with each other on the entire peripheral surface of the core metal roll body. Affixed as follows. Thus, a rubber roll was formed and used as Comparative Example 4. The outer diameter of the rubber roll was 56 mm.
  • the median surface roughness of each was 3.75, 4.85, 8.21, 16.21, 16.32, 2.50 and 40.25.
  • the variation in thickness was in the range of ⁇ 0.3 (ie, ⁇ 0.3 to +0.3).
  • the median surface roughness of Comparative Examples 1 and 2 was 0.62 and 0.28, respectively.
  • the specific gravity of the coating layer was 1.08, 0.86, 0.76, 0.74, 0.54, 0.78 and 0.60 for Examples 1 to 7, respectively.
  • the specific gravity of the coating layers of Comparative Examples 1 and 2 was 1.34 and 0.84, respectively.
  • Each rubber roll was incorporated as a guide roll for a winding / unwinding device, and a polypropylene film (PP film) having a thickness of 40 ⁇ m was wound at a tension of 30 N / m and a line speed of 300 m / min.
  • the rubber roll can rotate freely with the contact and movement of the film during operation of the apparatus.
  • the rotational speed of each rubber roll was measured, and the slipping of the film and the state of rotation of the rubber roll were observed.
  • the apparatus was operated for 10 minutes, a PP film having a length of 3000 m was wound around a core, and the apparatus was stopped.
  • the rubber roll after the operation for 10 minutes and winding the 3000 m long PP film around the core was repeated 5 times was used as the rubber roll after use.
  • Examples 1-7 The rubber rolls of Examples 1 to 7 all rotated at a rotational speed of 300 m / min during operation of the apparatus. In any rubber roll, no scratch was observed on the PP film wound around the core. In any rubber roll, there was no change in the surface roughness before and after use. Further, in any case of rubber rolls, defects such as idling, film slipping, and winding failure were not observed. From the above results, the rubber rolls of Examples 1 to 7 were evaluated as having no scratches on the film and having good grip properties. In addition, about the rubber roll of Example 5, abrasion was observed on the surface when it was used over a longer time.
  • Comparative Example 1 The rubber roll of Comparative Example 1 was rotating at a rotational speed of 142 m / min during operation of the apparatus. That is, the rubber roll of Comparative Example 1 was idling during operation.
  • Comparative Example 2 The rubber roll of Comparative Example 2 was rotating at a rotation speed of 156 m / min during operation of the apparatus. That is, the rubber roll of Comparative Example 2 was idling during operation. There was no significant change on the roll surface before and after use.
  • Comparative Example 4 The rubber roll of Comparative Example 4 was rotated at a rotational speed of 300 m / min during operation of the apparatus. Striped patterns were observed on the surface of the PP film wound around the core. This striped pattern was considered that the uneven polymer tape affixed spirally on the peripheral surface of the roll body was transferred to the film.
  • a micro hollow body having an average particle diameter of 5 ⁇ m to 500 ⁇ m is included with 1 to 110 parts by weight with respect to 100 parts by weight of a rubber material, and the micro hollow body of the coating layer is open It was revealed that this rubber roll can handle the film well.
  • the embodiment further includes a micro hollow body having an average particle size of 10 ⁇ m to 500 ⁇ m, the micro hollow body of the coating layer is open, and the surface roughness of the coating layer is in the range of 0.3 to 41.00. It has been clarified that the rubber roll is particularly excellent as a rubber roll for a film.

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  • Chemical & Material Sciences (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un rouleau de caoutchouc de films, caractérisé en ce qu'il comprend un corps principal de rouleau et une couche de recouvrement formée en tant que couche la plus à l'extérieur sur le corps principal de rouleau, ladite couche de recouvrement comprenant un matériau en caoutchouc et une pluralité d'objets creux fins dispersés dans le matériau de caoutchouc et chacun étant constitué d'une résine thermoplastique, lesdits objets creux fins ayant un diamètre de particule moyen inférieur ou égal à 500 µm. La présente invention est en outre caractérisée en ce que lesdits objets creux fins, situés dans la surface de la couche de couverture, sont ouverts sur la surface de couche de couverture, les bords des ouvertures sont de niveau avec la surface de couche de couverture, et les surfaces des cavités de l'ouverture des objets creux fins constituent des évidements de la surface de couche de couverture.
PCT/JP2014/079628 2013-11-12 2014-11-07 Rouleau en caoutchouc de film WO2015072412A1 (fr)

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KR1020167013019A KR101689278B1 (ko) 2013-11-12 2014-11-07 필름용 고무롤
CN201480062713.9A CN105793178B (zh) 2013-11-12 2014-11-07 薄膜用橡胶辊

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JP2013234181A JP5745008B2 (ja) 2013-11-12 2013-11-12 フィルム用ゴムロール
JP2013-234181 2013-11-12

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WO2015072412A1 true WO2015072412A1 (fr) 2015-05-21

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JP (1) JP5745008B2 (fr)
KR (1) KR101689278B1 (fr)
CN (1) CN105793178B (fr)
MY (1) MY160324A (fr)
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JP2005035732A (ja) * 2003-07-14 2005-02-10 Sumitomo Rubber Ind Ltd ゴムローラ
WO2013100062A1 (fr) * 2011-12-27 2013-07-04 東レ株式会社 Dispositif de fabrication et procédé de fabrication pour cylindres de film plastique microporeux
JP2013166635A (ja) * 2012-02-16 2013-08-29 Sumitomo Rubber Ind Ltd 紙送りローラとその製造方法

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CN105793178B (zh) 2017-12-29
JP2015093759A (ja) 2015-05-18
KR101689278B1 (ko) 2016-12-23
MY160324A (en) 2017-02-28
JP5745008B2 (ja) 2015-07-08
CN105793178A (zh) 2016-07-20
KR20160065978A (ko) 2016-06-09

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