Konica Corporation

Hidetoshi Ezure

Kenji Ohnuma

Yasuo Kurachi

Takayuki Sasaki

Yasuhiko Takamuki

Masahito Takada

Yuji Hosoi

Akihisa Nakajima

Eiichi Ueda

Kazuyoshi Goan

Hideki Komatsu

Yoshihiro Wada

Tetsuo Shima

Hitoshi Adachi

Ichiro Kudo

Yasuyuki Motokui

Masayoshi Yamauchi

Thermally developable silver halide photothermographic material

A polyester film is disclosed, exhibiting a minimum value of not more than 0.15 with respect to the tan &dgr; value obtained at a frequency of 0.01 Hz within the range of 100 to 160&deg; C., the tan &dgr; being determined in a tensile viscoelasticity measurement. A photographic support and photothermographic material using this polyester film are also disclosed, which exhibits superior dimensional stability even when subjected to thermal development at a high temperature and little roll set curl when used in a roll form.

Photographic support and photothermographic material by use thereof

Preparation method photothermographic material

A thermally developable photosensitive material comprising organic silver salts, photosensitive silver halides, and reducing agents. The thermally developable photosensitive material has a support having am moisture content of not more than 0.5 percent by weight.

Thermally developable photosensitive material

A support of photographic material is disclosed. The support is composed of plastic film in which polyethylene naphthalate is the major component. The plastic film is thermally treated at a temperature of not less than its Tg of said film to no more than its Tg plus 55&deg; C.

Photographic support, silver halide photosensitive photographic material and thermally developable photosensitive photographic material

Provided is a photographic support which is excellent in mechanical strength and is less liable to get into roll set curl and which is excellent in cutting property and flatness, and a photographic material using the same. The support for photographic material comprises a polyester film, wherein the polyester film comprises two kinds of polyester resins, each has intrinsic viscosity of 0.2-1.2, and a difference in the intrinsic viscosity between the polyester resins is 0.1-1.0.

Photographic support and photographic material

An anti-static-treated film material having an electro-conductive layer is disclosed. The film material contains at least one selected from conductive particles and semi-conductive particles at an amount between 1 and 50 vol. % with respect to said electro-conductive layer and polymer particles having an average particle diameter of 0.01 to 5 .mu.m, and the absolute value of impedance of said film material under frequency at 20 Hz is between 4.times.10.sup.5 and 1.times.10.sup.20 .OMEGA.. The film material is suitably used as a support of asilver halide light sensitive material.

Plastic film having an improved anti-static property

A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having a dielectric constant for 100 Hz of not larger than 2.80 having thereon,

Antistatic light-sensitive silver halide photographic material

Growing community of inventors

Hino, Japan

Hidetoshi Ezure