Toyo Ink Mfg. Co., Ltd.

Nissin Foods Holdings Co., Ltd.

Ihi Corporation

Shinya Sugiura

Hiroyuki Kawashima

Hiroshi Tsukawaki

Mitsuaki Hirata

Manabu Matsuzaki

Masaki Takahashi

Tomohiko Nakamura

A low temperature liquid tank includes: a storage tank having a bottom portion obtained by joining a plurality of bottom plates; and a support portion supporting the bottom portion. The support portion includes: an outer support portion supporting a margin of the storage tank; and an inner support portion disposed inside the outer support portion and having a heat insulation in which creep occurs when a load is applied. An initial height of an upper surface of the inner support portion is set so that, during a service life of the low temperature liquid tank, maximum bending stress applied to the bottom plates due to a difference between a height of the upper surface of the inner support portion and a height of an upper surface of the outer support portion remains equal to or smaller than an allowable bending stress of the bottom plates.

Low temperature liquid tank

There is provided a brightening ink composition for printing intended for realizing a heat insulating foamed paper container produced by foaming a low-melting point film by a heat treatment, such as a heat insulating foamed paper cup, the brightening ink composition conforming to the foaming without the occurrence of ink splits (cracks) upon foaming, having very small differences in level between the brightening printed areas and other printed areas at the container surface after foaming, making the container surface almost smooth, and having excellent design applicability and aesthetic properties as well as excellent heat resistance and print quality. A brightening ink composition containing a brightening material that imparts a sense of brightness, silicon dioxide, a binder resin and a solvent is prepared, and the brightening ink composition is used to form a printed layer of a paper container material for producing a heat insulating foamed paper container.

Brightening ink composition for printing, paper container material using the brightening ink composition, and heat insulating foamed paper container

An ink composition having a colorant; a binder resin; and a solvent; wherein the elongation ratio of the binder resin is 400% to 3,000%; wherein the binder resin comprises a urethane resin and a vinyl chloride/vinyl acetate copolymer, and the mixing ratio of the urethane resin:vinyl chloride/vinyl acetate copolymer relative to the total weight of the urethane resin and the vinyl chloride/vinyl acetate copolymer is 50:50 to 99:1; and wherein the urethane resin comprises a urethane-urea resin that is obtained by a process comprising reacting dibutylamine and a urethane prepolymer obtained by a process comprising reacting a polymeric polyol component having a number average molecular weight of 500 to 10,000 and an organic diisocyanate component having terminal isocyanate groups. A heat insulating foamed paper container material having at least one print pattern formed from said ink composition.

Ink composition for printing, paper container material using the ink composition, and heat insulating foamed paper container

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Tokyo, Japan

Shinya Sugiura