WO2014207976A1 - タイヤ - Google Patents
タイヤ Download PDFInfo
- Publication number
- WO2014207976A1 WO2014207976A1 PCT/JP2014/002244 JP2014002244W WO2014207976A1 WO 2014207976 A1 WO2014207976 A1 WO 2014207976A1 JP 2014002244 W JP2014002244 W JP 2014002244W WO 2014207976 A1 WO2014207976 A1 WO 2014207976A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paint layer
- thickness
- layer
- protective layer
- color
- Prior art date
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/001—Decorating, marking or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/04—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof having annular inlays or covers, e.g. white sidewalls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/002—Protection against exterior elements
Definitions
- the present invention relates to a tire.
- the protective layer needs to have a certain degree of hardness.
- the harder the protective layer the higher the possibility that cracks will occur in the protective layer due to side portion distortion of the running tire.
- the strain is further increased due to the thickness of the tire and the protective layer, so that the possibility of occurrence of cracks is further increased. Therefore, it is required to simultaneously provide excellent damage resistance and crack resistance while improving color developability.
- an object of the present invention which has been made in view of such circumstances, is to provide a tire having a decorative portion that is excellent in both of scratch resistance and crack resistance while improving color developability.
- the tire of the present invention includes a decorative portion using paint on the surface of the side portion, and the decorative portion includes a white paint layer disposed on at least a part of the decorative portion, A color paint layer having a thickness smaller than the thickness of the white paint layer and arranged on the outer side in the tire width direction of the white paint layer; and a thickness smaller than the thickness of the white paint layer, the white paint layer and the color paint layer And a protective layer laminated on the outer side in the tire width direction of the color paint layer, and the thickness of the entire decorative part including the white paint layer, the color paint layer, and the protective layer is 150 ⁇ m. It is characterized by the following.
- the thickness of the whole decoration part and the thickness of a protective layer mean the thickness in each maximum thickness position in a decoration part. According to such a configuration, the color developability of the color coating layer can be improved, the decorativeness can be improved, and both the damage resistance and the crack resistance can be provided at the same time.
- the elastic modulus of the protective layer is 1 ⁇ 10 7 to 1 ⁇ 10 8 Pa or less.
- the elastic modulus is a value measured according to “JIS K7244-4 (ISO 6721-4) tensile vibration”. According to this configuration, sufficient damage resistance and crack resistance can be obtained.
- the protective layer is laminated on the side portion without the white paint layer and the color paint layer interposed therebetween, and the thickness of the protective layer is that of the decorative portion. It is preferably 10% or more of the total thickness. According to this configuration, it is possible to suppress the occurrence of cracks at the boundary between the region constituted only by the protective layer of the decorative portion and the region constituted by including other layers.
- the protective layer has a thickness of 20 ⁇ m or less. With this configuration, sufficient crack resistance can be obtained.
- the thickness of the protective layer is 30% or less of the total thickness of the white paint layer and the color paint layer. According to this configuration, sufficient crack resistance can be obtained.
- the thickness of the protective layer and the paint thickness which are compared here it is set as the relationship when compared in the thickness in the arbitrary points of a decoration part.
- the total thickness of the decorative portion is 95 ⁇ m or less. According to this configuration, sufficient crack resistance can be obtained.
- FIG. 1 is a cross-sectional view in the width direction of a tire according to an embodiment of the present invention.
- FIG. 1 is a cross-sectional view in the width direction of a tire according to the present embodiment.
- the tire 10 includes a tread portion 11 and a side portion 12.
- the tread portion 11 contacts the road surface.
- the side part 12 includes a sidewall part 13 and a bead part 14. More specifically, the side portion 12 is a region in a range from the outer edge in the tire width direction of the tread surface to the rim fitting portion of the bead portion 14.
- the tire 10 of the present embodiment includes a decoration portion 15 on the side portion 12 that displays a mark and decoration using paints such as white and other colors.
- the decorative portion 15 includes a white paint layer 16, a color paint layer 17 laminated thereon, and a protective layer 18 laminated thereon at least partially.
- the decoration part 15 may be an aspect that is continuous or intermittent along the circumferential direction of the side part 12, or may be an aspect that is partially formed on the side part 12. Furthermore, even if the decoration part 15 consists only of the part in which the white paint layer 16, the color paint layer 17, and the protective layer 18 were laminated
- the total thickness of the decorative portion 15 including the white paint layer 16, the color paint layer 17, and the protective layer 18 needs to be 150 ⁇ m or less, and preferably 95 ⁇ m or less.
- the overall thickness of the decorative portion 15 is the thickness at the maximum thickness position in the side portion 12. In FIG. 1, for easy understanding, the white paint layer 16, the color paint layer 17, and the protective layer 18 are drawn in an exaggerated thickness.
- the white paint layer 16 is arranged by printing a white paint on at least a part of the decorative portion 15, for example.
- the white paint layer 16 may be formed directly on the surface of the side portion 12 or may be formed via a primer or the like.
- the color paint layer 17 is laminated and arranged on the outer side in the tire width direction of at least a part of the white paint layer 16 by printing, for example, a color paint having a color different from that of the white paint.
- the color paint layer 17 needs to have a thickness of the color paint layer 17 smaller than that of the white paint layer 16.
- the thicknesses of the color paint layer 17 and the white paint layer 16 are the thicknesses at the respective maximum thickness positions in the decorative portion 15.
- a mark, a decoration, etc. are given on the white paint layer 16 using the color paint layer 17, for example.
- the color paint layer 17 may be formed directly on the surface of the white paint layer 16 or may be formed via another layer.
- the white paint and the color paint include, for example, a photopolymerization initiator, an oligomer, a monomer, and a colorant as main components, and if necessary, an ultraviolet absorber, an antioxidant, a light stabilizer, an adhesion promoter, It is a UV ink containing a rheology modifier and a dispersant.
- the protective layer 18 is laminated and disposed on the outer side in the tire width direction of the color coating layer 17 using a transparent material such as OP varnish or water-based urethane resin. Furthermore, at least a part of the protective layer 18 is disposed on the surface of the side portion 12 beyond the outer edge where the white paint layer 16 is formed and without the white paint layer 16 and the color paint layer 17 interposed. It is preferable (see symbol “A”).
- the thickness of the protective layer 18 needs to be smaller than the thickness of the white paint layer 16, and when the protective layer 18 is disposed on the surface of the side portion 12 without the white paint layer 16 and the color paint layer 17 interposed, 15 or more, preferably 20 ⁇ m or less, and 30% or less of the total thickness of the white paint layer 16 and the color paint layer 17. Is preferred.
- the thickness of the protective layer 18 and the paint thickness are the thicknesses at the maximum thickness position in the decorative portion 15.
- the elastic modulus of the protective layer 18 needs to be larger than any elastic modulus of the white paint layer 16 and the color paint layer 17, and is preferably 1 ⁇ 10 7 to 1 ⁇ 10 8 Pa or less.
- the elastic modulus is a value measured according to “JIS K7244-4 (ISO 6721-4) tensile vibration”.
- the decorative portion 15 as a whole is capable of following the deformation of the side portion 12, and the decorative portion 15 is assumed. It is possible to obtain excellent crack resistance against the distortion of the side portion 12 to be performed. Further, according to the tire of the present embodiment, as described above, since the thickness of the white paint layer 16 is larger than the thickness of the color paint layer 17 and the protective layer 18, the elastic modulus protects the distortion generated in the side portion 12. The white paint layer 16 lower than the layer 18 can be burdened. In addition, since the color paint layer 17 is interposed between the white paint layer 16 and the protective layer 18, it is possible to greatly suppress the influence of the distortion of the protective layer 18.
- the decorative portion 15 can simultaneously have excellent damage resistance and crack resistance.
- the color paint layer 17 is laminated on the white paint layer 16, so that the color developability of the color paint layer 17 compared to the configuration in which the color paint layer 17 is directly formed on the side portion 12. Can be improved.
- the thickness of the white paint layer 16 is larger than the thickness of the white paint layer 17, the color developability of the color paint layer 17 is enhanced and the decorativeness can be improved.
- the elastic modulus of the protective layer 18 is 1 ⁇ 10 7 Pa or more. Further, by setting the elastic modulus of the protective layer 18 to 1 ⁇ 10 7 Pa or more, sufficient damage resistance can be obtained. Moreover, sufficient crack resistance is obtained by the elastic modulus of the protective layer 18 being 1 ⁇ 10 8 Pa or less.
- the thickness of the protective layer 18 is 10% or more of the total thickness of the decorative portion 15.
- the occurrence of cracks at the boundary positions described below can be suppressed.
- the decorative portion 15 when a difference in thickness increases between a region constituted only by the protective layer 18 and a region constituted by including other layers (white paint layer 16 and color paint layer 17), The possibility of occurrence of cracks at the boundary position between both regions is increased. Therefore, the occurrence of cracks at the boundary position can be suppressed by providing an upper limit for the difference in thickness as in this embodiment. Further, by arranging the protective layer 18 on the surface of the side portion 12 without the white paint layer 16 and the color paint layer 17 interposed, the white paint layer 16 and the color paint layer 17 can be sufficiently protected.
- the thickness of the protective layer 18 is set to 20 ⁇ m or less, the concentration of strain on the protective layer 18 is further suppressed, and the deformation amount due to the strain of the protective layer 18 is suppressed. Therefore, sufficient crack resistance can be obtained.
- the thickness of the protective layer 18 is set to 30% or less of the coating thickness, the concentration of strain on the protective layer 18 can be further suppressed. Therefore, the deformation amount due to distortion of the protective layer 18 itself is further suppressed. Therefore, sufficient crack resistance can be obtained.
- the decorative portion 15 as a whole can further follow the deformation of the side portion 12, and sufficient crack resistance can be obtained.
- ⁇ Tound resistance evaluation test> A trauma resistance test (20-time coin test) was carried out by rubbing the decorative portion 15 of the tire of Comparative Examples 1 to 3 and Examples 1 to 11 with a coin 20 times. Further, a trauma resistance test (100 coin test) was performed by rubbing 100 times with a coin. After rubbing with coins, the damage resistance was evaluated by visually observing whether or not there was any damage in the decorative portion 15. The evaluation results are shown in Table 1. Furthermore, the required trauma resistance is a performance that does not cause trauma in the 20-time coin test.
- * 1 indicates “small” when the thickness of each of the color paint layer 17 and the protective layer 18 is smaller than the thickness of the white paint layer 16, and when at least one of them is greater than the thickness of the white paint layer 16. Indicated by “Large”.
- Example 1 As shown in Table 1, in Examples 1 to 11, no injury occurred in the 20th coin test. Therefore, it can be seen that the decorative part 15 has the protective layer 18 to provide the required damage resistance. In Examples 1 to 3, and 5 to 11, no injury occurred in the 100th coin test. On the other hand, in Example 4, since trauma occurred in the 100-time coin test, it can be seen that when the elastic modulus of the protective layer 18 is 1 ⁇ 10 7 or more, the trauma resistance is further improved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
比較例1~3ならびに実施例1~11のタイヤを、サイズ6JJのリム(JATMA標準規格リム)に組付けるとともに、空気圧240kPa(JATMA規格の最大空気圧)を充填して、ドラム速度60km/hで10000kmに亘って615kg(JATMA最大荷重)のドラム荷重を負荷するドラム試験(10000km試験)を実施した。また、30000kmに亘るドラム試験(30000km試験)を、他は10000km試験と同一の条件で実施した。ドラム荷重負荷後に、白塗料層16および色塗料層17の積層部分のクラックの有無を、10000km試験および30000km試験別に目視により判別することにより、耐クラック性を評価した。評価結果を表1に示す。なお、要求される耐クラック性は、10000km試験においてクラックが発生しない性能である。
比較例1~3ならびに実施例1~11のタイヤの装飾部15をコインで20回擦る耐外傷性試験(20回コイン試験)を実施した。また、コインで100回こする耐外傷性試験(100回コイン試験)を実施した。コインでこすった後、装飾部15における外傷の発生の有無を目視により判別することにより耐外傷性を評価した。評価結果を表1に示す。な、要求される耐外傷性は、20回コイン試験において外傷が発生しない性能である。
比較例1~3ならびに実施例1~11のタイヤを20人の看者に観察させ、色塗料層17の発色性に関する3段階評価のアンケート調査を集計することにより、発色性を評価した。評価結果を表1に示す。表1において、3段階評価の中でより良好であると評価した看者が20名中、10人未満である例の発色性をC、10人以上15名未満である例の発色性をB、15名以上である例の発色性評価をAとした。なお、要求される発色性は、A、Bの評価を得られる性能である。
11 トレッド部
12 サイド部
13 サイドウォール部
14 ビード部
15 装飾部
16 白塗料層
17 色塗料層
18 保護層
Claims (6)
- サイド部の表面に塗料を用いた装飾部を備え、
該装飾部は、該装飾部の少なくとも一部に配置した白塗料層と、前記白塗料層の厚さより厚さが小さく前記白塗料層の少なくとも一部のタイヤ幅方向外側に積層配置させた色塗料層と、前記白塗料層の厚さより厚さが小さく、前記白塗料層および前記色塗料層の何れよりも弾性率が大きく、前記色塗料層のタイヤ幅方向外側に積層配置させた保護層とを有し、前記白塗料層、前記色塗料層、および前記保護層を含む前記装飾部全体の厚さが150μm以下である
ことを特徴とするタイヤ。 - 前記保護層の弾性率が1×107~1×108Pa以下である、請求項1に記載のタイヤ。
- 前記保護層の少なくとも一部は、前記白塗料層および前記色塗料層を介在させることなく前記サイド部に積層配置され、前記保護層の厚さが前記装飾部の全体の厚さの10%以上である、請求項1または2に記載のタイヤ。
- 前記保護層の厚さが20μm以下である、請求項1から3のいずれか1項に記載のタイヤ。
- 前記保護層の厚さが、前記白塗料層および前記色塗料層の厚さを合計した塗料厚さの30%以下である、請求項1から4のいずれか1項に記載のタイヤ。
- 前記装飾部の全体の厚さが95μm以下である、請求項1から5のいずれか1項に記載のタイヤ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14818105.0A EP3015292B1 (en) | 2013-06-24 | 2014-04-21 | Tire |
CN201480034731.6A CN105339192B (zh) | 2013-06-24 | 2014-04-21 | 轮胎 |
US14/891,787 US10857839B2 (en) | 2013-06-24 | 2014-04-21 | Tire |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013131911A JP5576969B1 (ja) | 2013-06-24 | 2013-06-24 | タイヤ |
JP2013-131911 | 2013-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014207976A1 true WO2014207976A1 (ja) | 2014-12-31 |
Family
ID=51579057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/002244 WO2014207976A1 (ja) | 2013-06-24 | 2014-04-21 | タイヤ |
Country Status (5)
Country | Link |
---|---|
US (1) | US10857839B2 (ja) |
EP (1) | EP3015292B1 (ja) |
JP (1) | JP5576969B1 (ja) |
CN (1) | CN105339192B (ja) |
WO (1) | WO2014207976A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10137741B2 (en) * | 2015-04-27 | 2018-11-27 | Keith George Ferry | Display assemblies and methods for applying the same to vulcanized rubber articles |
IT201800006206A1 (it) * | 2018-06-11 | 2019-12-11 | Pneumatico per ruote di veicoli | |
US20210324180A1 (en) * | 2018-08-30 | 2021-10-21 | Pirelli Tyre S.P.A. | Tyre for vehicle wheels |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1086605A (ja) * | 1996-07-22 | 1998-04-07 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2007210378A (ja) * | 2006-02-08 | 2007-08-23 | Keiji Iimura | 発光タイヤ |
JP2012176682A (ja) | 2011-02-25 | 2012-09-13 | Bridgestone Corp | 空気入りタイヤ及びタイヤ保護剤 |
JP2012250575A (ja) * | 2011-05-31 | 2012-12-20 | Bridgestone Corp | タイヤ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5240100A (en) * | 1975-09-26 | 1977-03-28 | Dainippon Ink & Chem Inc | Indication label for rubber tire |
CA2143888A1 (en) | 1994-03-14 | 1995-09-15 | Joseph Edward Lipovac | Making a rubber product with a precisely located applique preferably protected by scuff ribs |
BR9502804A (pt) | 1994-06-24 | 1996-03-12 | Goodyear Tire & Rubber | Pneu curado e processo para a fabricação de um produto de borracho curada |
DE69710844T2 (de) * | 1996-11-06 | 2002-09-26 | Bridgestone Corp | Anzeigenetikette und Verfahren zum Ausbilden einer Anzeigenetikette |
US6224958B1 (en) * | 1998-04-22 | 2001-05-01 | Specialty Adhesive Film Co. | Method of marking elastomeric articles with bar codes and article therefore |
CA2311960C (en) * | 1999-07-30 | 2009-12-22 | The Goodyear Tire & Rubber Company | Permanent tamper resistant bar code labels for tires |
US7153381B2 (en) * | 1999-07-30 | 2006-12-26 | The Goodyear Tire & Rubber Company | Cured applique or label with protective film on arcuate sidewall or tread of pneumatic tire |
JP4592973B2 (ja) * | 2001-02-13 | 2010-12-08 | 日東電工株式会社 | タイヤ管理用ラベル |
JP4394435B2 (ja) * | 2003-12-19 | 2010-01-06 | 東洋ゴム工業株式会社 | タイヤ用カラーシールを備えた空気入りタイヤ |
JP4769593B2 (ja) * | 2006-02-13 | 2011-09-07 | 株式会社ブリヂストン | 表示用シールおよびそれを用いたタイヤ |
US8531773B2 (en) * | 2011-01-10 | 2013-09-10 | Microvision, Inc. | Substrate guided relay having a homogenizing layer |
JP5873329B2 (ja) * | 2011-12-27 | 2016-03-01 | 株式会社ブリヂストン | ゴム装飾物及びタイヤ |
WO2014068998A1 (ja) * | 2012-11-05 | 2014-05-08 | 株式会社ブリヂストン | ゴム積層体及びタイヤ |
JP5588545B1 (ja) * | 2013-06-21 | 2014-09-10 | 株式会社ブリヂストン | タイヤおよびタイヤ印刷方法 |
-
2013
- 2013-06-24 JP JP2013131911A patent/JP5576969B1/ja not_active Expired - Fee Related
-
2014
- 2014-04-21 CN CN201480034731.6A patent/CN105339192B/zh not_active Expired - Fee Related
- 2014-04-21 WO PCT/JP2014/002244 patent/WO2014207976A1/ja active Application Filing
- 2014-04-21 US US14/891,787 patent/US10857839B2/en active Active
- 2014-04-21 EP EP14818105.0A patent/EP3015292B1/en not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1086605A (ja) * | 1996-07-22 | 1998-04-07 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ |
JP2007210378A (ja) * | 2006-02-08 | 2007-08-23 | Keiji Iimura | 発光タイヤ |
JP2012176682A (ja) | 2011-02-25 | 2012-09-13 | Bridgestone Corp | 空気入りタイヤ及びタイヤ保護剤 |
JP2012250575A (ja) * | 2011-05-31 | 2012-12-20 | Bridgestone Corp | タイヤ |
Non-Patent Citations (1)
Title |
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See also references of EP3015292A4 |
Also Published As
Publication number | Publication date |
---|---|
EP3015292B1 (en) | 2017-08-09 |
EP3015292A1 (en) | 2016-05-04 |
US20160121661A1 (en) | 2016-05-05 |
CN105339192A (zh) | 2016-02-17 |
CN105339192B (zh) | 2017-07-25 |
JP5576969B1 (ja) | 2014-08-20 |
US10857839B2 (en) | 2020-12-08 |
JP2015006813A (ja) | 2015-01-15 |
EP3015292A4 (en) | 2016-05-11 |
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