Bridgestone Corporation

Kojiro Torisu

Yuki Nakamura

Yukio Sugita

Shogo Ueda

Akihiko Hajikano

Yasuma Saito

Yoshiki Mizuta

Toshio Furutaka

Kiyotaka Yoshii

Provided is a tire and a tire surface printing method which are capable of reducing man-hours and cost required for application of printing on the tire surface. The tire and the tire surface printing method include, on an outer surface of at least one of side portions () thereof, a printed region () formed by printing. The printed region () includes: a dark-colored portion () having a black color, which is a base color of the tire; and a bright-colored portion () that has a color different from the black color and that is located to surround the dark-colored portion (). The dark-colored portion () is not applied with any paint, and the bright-colored portion () includes a white-colored layer () that includes a white color paint and that is located as the lowermost layer being in contact at least with the outer surface () of the side portion ().

Tire and tire surface printing method

Provided is a decorative tire in which an ink composition including a colorant is directly applied onto the tire surface in order to improve the degree of flexibility in design. This decorative tire has a decorative printed layer formed on the tire surface, the decorative printed layer being a cured film of an active-energy-ray-curable ink composition including a colorant. The ink composition includes a monofunctional monomer having a glass transition point of &#x2212;30&#xb0; C. or lower, and a polyfunctional monomer having a glass transition point of 0&#xb0; C. or lower. Preferably, the ink composition further includes a monofunctional monomer having an alicyclic structure with a glass transition point between 0-110&#xb0; C. inclusive. Preferably, a surface protection layer that protects the surface of the decorative printed layer is formed on the surface of the decorative printed layer. Also, preferably, a primer layer is formed between the tire surface and the decorative printed layer.

Decorative tire and method for producing same

A compact twister and a method for producing a twisted wire that can efficiently produce a short twisted wire that satisfies performance requirements, as well as a ply and a pneumatic tire twisted using the twister or the method for producing a twisted wire, are provided. The twister includes a rotating body for twisting plural filament wires that are fed thereto to form a cord and for applying a feeding force to the cord. The rotating body includes a feeding mechanism within a housing, and the cord is discharged from the rotating body by the feeding mechanism. The twister carries out twisting operation with one of a cord side of a twisting point or a filament wire side of the twisting point being free. Thus, a compact twister, that can form a cord with excellent rotating property and straightness, is accomplished.

Twister, method for producing twisted wire, ply, and pneumatic tire

Growing community of inventors

Ohtawara, Japan

Kojiro Torisu