Mitsubishi Rayon Company, Limited

Kenji Kushi

Isao Sasaki

Takayuki Iseki

Tadayuki Fujiwara

Kazumasa Kamada

Ken-ichi Inukai

Kazuhiko Jufuku

Kazuo Kishida

Akifumi Ueda

Hideo Nakamoto

Misao Tamura

Keisuke Yoshihara

Kozi Nishida

Masaru Morimoto

Seiya Koyanagi

Atushi Nakashima

Michisuke Edamatu

Yasuyuki Fujimoto

Nobuyoshi Taguchi

Masahiro Sugimori

Hitoshi Iwasaki

Hideyasu Ryoke

Atushi Nakazima

Youichi Nagai

Chiho Tokuhara

Mitisuke Edamatsu

Susumu Kondo

A polyester resin for a dye receptive layer of a recording medium for sublimation type heat-sensitive transfer recording process, and a recording medium using thereof, which has superior resistance to light exposure and dark fade out. A polyester resin for a dye receptive layer of a recording medium for sublimation type heat-sensitive transfer recording process, wherein said polyester resin is formed by using a diol component containing a diol compound shown in Formula (1) in a range of 5-80 molar % with respect to the total diol component, and a receiving medium using thereof. ##STR1## (In Formula (1), each of R.sub.1 and R.sub.2 represents an alkylene group having a number of carbon atoms within a range of 1-12.)

Polyester resin for a dye receptive layer of a recording medium for

A photopolymerizable or radiation polymerizable alkaline developing crosslinking curable resin composition possessing superior antiplating properties and a short stripping period, in which the stripped plate is not easily dissolved in the stripping fluid, and which is comprising:

Crosslinking curable resin composition

A recording medium for sublimation type heat-sensitive transfer recording process is disclosed in which an image receiving layer constituting a resin composition containing a dyeable resin and at least one compound shown in Formula (1) is formed on a substrate surface. This recording medium for sublimation type heat-sensitive transfer recording process has extremely superior light resistance, and the image recorded on this recording medium suffers little fade out or discoloration as a result of exposure to light, so that this recording medium is expected to contribute greatly to the spread of video printers and the like. ##STR1## (In Formula (1), R.sub.1 represents an alkyl group having a number of carbon atoms within a range of 1-20, and A represents a substituted or unsubstituted phenylene group or naphthalene group.)

Recording medium for sublimation type heat-sensitive transfer recording

A recording medium for sublimation type heat-sensitive transfer recording process, in which an image receiving layer comprising a resin composition containing a dyeable resin and at least one phosphite antioxidant shown in Formulas (1), (2), or (3) is formed on a substrate surface. This recording medium for sublimation type heat-sensitive recording methods has extremely superior light resistance, and the image recorded on this recording medium suffers little fade out or discoloration as a result of exposure to light, so that this recording medium is expected to contribute greatly to the spread of video printers and the like. ##STR1## (In Formula (1), R.sub.1 and R.sub.2 represent H or an alkyl group having a number of carbon atoms within a range of 1-20, R.sub.3 and R.sub.4 represent alkyl groups having a number of carbon atoms within a range of 1-20, X represents H or an atomic group having 1-10 carbon atoms as a main skeleton thereof, and n has a value of 1, 2, 3, or 4.) ##STR2## (In Formula (2), R.sub.5 and R.sub.6 represent H or an alkyl group having a number of carbon atoms within a range of 1-20, R.sub.7 represents an alkyl group having a number of carbon atoms within a range of 1-20, Y represents H or an atomic group having 1-10 carbon atoms as a main skeleton thereof, and n has a value of 1, 2, 3, or 4.) ##STR3## (In Formula (3), RS, R.sub.9, R.sub.10, and R.sub.11 represent H or an alkyl group having a number of carbon atoms within a range of 1-20, Z represents H or an atomic group having 1-10 carbon atoms as a main skeleton thereof, and n has a value of 1, 2, 3, or 4.)

A highly stable photopolymerizable composition which is highly photosensitive to visible light, which can be hardened using a visible light laser, such as an argon laser, which provides excellent contrast between non-irradiated portions and the substrate under red light, and, moreover, which provides excellent contrast between the portions irradiated by the laser and the portions not irradiated. The photopolymerizable composition consists of 100 parts by weight of a resin which is hardenable under visible light having an irradiation energy mainly consisting of light rays in the 400 nm to 700 nm visible light region; 0.02 to 0.5 parts by weight of at least one dye selected from the group consisting of Victoria Pure Blue, anthraquinone dyes, monoazo dyes, and merocyanine dyes, these dyes having maximum absorption wavelengths from 550 to 700 nm; 0.1 to 5 parts by weight of the leuco dye 4,4'-(phenylmethylene bis[N,N-diethylbenzene amine]; and 0.1 to 5 parts by weight of tribromomethylphenyl sulphone.

Photopolymerizable composition

Disclosed is a recording media for a sublimation-type heat-sensitive transfer recording process. The purpose of the present invention is to supply a recording media for a sublimation-type heat-sensitive process possessing an extremely high whiteness degree. The recording media comprises an image receiving layer composed of a dyeable resin which can be dyed by a sublimable dye; a crosslinking agent; and an anthraquinone based bluing agent. With the recording media for a sublimation type heat-sensitive recording process according to the present invention, a recording media having a high whiteness degree which does not turn yellow following curing can be obtained. As a result of the high whiteness degree of the foundation, this recording media is of an extremely high grade, and due to its extremely vivid recording image, it will be widely adopted and marketed in video printers.

Recording media for a sublimation-type heat-sensitive recording process

The present invention provides a recording medium for sublimation type for heat-sensitive transfer recording process which comprises laminated paper as the substrate. In this laminated paper at least two cellulosic fiber papers are bonded together by adhesive agent and one side is coated with a dye accepting layer. Therefore, the recording medium for sublimation type for heat-sensitive transfer recording process which the present invention concerns uses, as the substrate, laminated paper in which cellulosic fiber papers are bonded together. This structure almost completely prevents curling of the recorded medium and also lowers the substrate production cost to achieve a low-cost recording medium and thereby greatly contribute to the expanded use of sublimation type recording printers.

A flame-resistant, photo-curing resin composition of the present invention consists of:

Flame-resistant photo-curable resin composition

A sublimation dispersion dye receptive resin composition which comprises a polyester resin, a cross- linking agent obtained by curing by activating energy, and a releasing agent which can effect the cross-linked construction of at least one selected from the group of silicon functional groups and functional groups containing fluorine. This resin composition is especially applicable to image-receiving paper or image-receiving film for sublimation-type thermal dye transfer methods; it has superior anti-blocking and heat-resistant characteristics. Furthermore, by means of the addition of benzotriazol ultraviolet stabilizer or hindered amine photostabilizer, the fading characteristics are improved.

Sublimation disperson dye receptive resin compositions

A photopolymerizing cross-linking hardenable resin composition is disclosed which is comprised of a binder resin, cross-linking monomer and photopolymerization initiator. The composition of each of the above mentioned components is such that dry film resist incorporating the resin composition of the present invention and used in processes for selective etching and plating of printed circuit boards can be developed in weak aqueous alkaline solution after selective exposure to light. In this way, the efficient and economical manufacture of high definition printed circuit boards is made possible. Additionally, dry film resist incorporating the photopolymerizing cross-linking hardenable resin composition of the present invention lends to easy handling and storage characteristics.

Cross-linking hardenable resin composition, metal laminates thereof and

Recording medium for a sublimation type heat-sensitive transfer process, comprising a laminate paper comprising a paper and a white polyester film layer adhered on one surface of the paper, in which the white polyester film layer is provided with a dye receiving layer cured with active radiation.

A crosslinking-curable resin composition suitable for use in dry film resists, consisting essentially of

Crosslinking-curable resin composition

Disclosed is a flame-retardant liquid photosensitive resin composition consisting essentially of

Flame-retardant liquid photosensitive resin composition

Disclosed is an easily-dyeable resin composition used in a sublimation type heat-sensitive transfer process. The composition comprises 100 parts by weight of a mixture composed of 40 to 95% by weight of a polyester resin and 5 to 60% of a crosslinking agent curable with active energy rays, and 0.01 to 12 parts by weight of a surface active agent selected from silicon-containing surface active agents and fluorine-containing surface active agents.

Composition easily dyeable with sublimable desperse dye

Disclosed is a liquid photosensitive resin composition comprising

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Ohtake, Japan

Kenji Kushi