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    Dry planographic printing plate
    2.
    发明授权
    Dry planographic printing plate 失效
    干版印刷版

    公开(公告)号：US3894873A

    公开(公告)日：1975-07-15

    申请号：US34346473

    申请日：1973-03-21

    Applicant: TORAY INDUSTRIES

    Inventor： KOBAYASHI MASAHARU ,  IWAMOTO MASAO

    IPC: B41M1/08 ,  B41N1/00 ,  G03F7/00 ,  G03F7/075 ,  G03F7/02

    CPC classification number: B41N1/003 ,  B41M1/08 ,  G03F7/0752 ,  Y10S430/106 ,  Y10S430/124

    Abstract: Presensitized planographic printing plate for use in dry planography. A positive acting plate having a flexible base and a relatively thick (0.02 to 2.00 mil) silicone rubber layer, overlying a photo-polymerizable and photoadhesive-layer. Upon exposure to light through a positive transparency, the photoadhesive layer in the exposed non-image area polymerizes and adheres firmly to the thick silicone rubber overlayer, but the photoadhesive layer in the unexposed image area remains nonadhesive to the silicone overlayer. Following the exposure, the surface of the plate is treated with developing liquid capable of swelling silicone rubber. The thick silicone rubber layer in the unexposed image area is easily removed, exposing a sharp image of oleophilic photoadhesive layer underlying the removed silicone layer, while the silicone rubber layer in the exposed background area remains bound to the photoadhesive underlayer. The exposed surface of the photoadhesive layer accepts ink from inking rollers, while the silicone rubber background area does not remove ink from the rollers, and thus remains ink-free.

    Abstract translation: 用于干式平版印刷的预感平版印刷版。 一种具有柔性基底和相对较厚（0.02至2.00密耳）的硅橡胶层的正性作用板，其覆盖在光可聚合和光致粘附层上。 通过正透明度曝光时，曝光的非图像区域中的光致粘附层聚合并牢固地粘附到厚的硅橡胶覆盖层，但未曝光图像区域中的光致粘附层保持与硅氧烷覆盖层不粘合。 曝光后，用可膨胀硅橡胶的显影液处理板的表面。 未曝光图像区域中的厚硅橡胶层容易去除，暴露出被除去的硅氧烷层下面的亲油性光粘合层的清晰图像，而暴露背景区域中的硅橡胶层仍然粘附到光粘合底层。 光固化层的露出表面从上墨辊接受油墨，而硅橡胶背景区域不会从辊中除去油墨，因此保持无油墨。

    5.
    发明专利
    未知

    公开(公告)号：DE2943379A1

    公开(公告)日：1980-05-08

    申请号：DE2943379

    申请日：1979-10-26

    Applicant: TORAY INDUSTRIES

    Inventor： FUJITA TAKASHI ,  IWAMOTO MASAO

    IPC: G03F7/022 ,  G03F7/075 ,  G03F7/02 ,  G03F7/14

    Abstract: Provided is a presensitized planographic printing plate requiring no dampening water for use in negative work which comprises a base substrate, a photosensitive layer secured to and overlying the base substrate, and containing an orthoquinonediazide compound and having a content of ethanol-soluble component not higher than 20% by weight, and a silicone rubber layer overlying the photosensitive layer through bonding component. When the printing plate is exposed through a negative film and then treated with a developer, the photosensitive layer in the exposed image areas is dissolved and the corresponding portion of the silicone rubber layer is also removed easily and is obtained image as an exact reproduction of the negative film. Dampening water is not required when printing is carried out.

    6.
    发明专利
    未知

    公开(公告)号：DE69212861T2

    公开(公告)日：1997-01-23

    申请号：DE69212861

    申请日：1992-02-28

    Applicant: TORAY INDUSTRIES

    Inventor： SAKODA KAZUAKI ,  MAEDA MASAYUKI ,  IWAMOTO MASAO

    IPC: G11B7/0045 ,  G03C1/72 ,  G11B7/24 ,  G11B7/244 ,  G11B7/245 ,  G11B7/248

    Abstract: A material for optical recording by utilizing the photochemical hole burning is disclosed. The optical recording material is a composition comprising a water-soluble deuterated polymer as a host component and a water-soluble organic pigment dispersed in the host component as a guest component. By virtue of the deuteration of the host component, the tunnel effect of the hydrogen atoms in the host component is prevented, so that the hole width is narrowed. Thus, the wavelength multiplicity is increased.

    PHOTOSENSITIVE POLYAMIDE COMPOSITION
    8.
    发明专利
    PHOTOSENSITIVE POLYAMIDE COMPOSITION 未知

    公开(公告)号：CA974396A

    公开(公告)日：1975-09-16

    申请号：CA157288

    申请日：1972-11-23

    Applicant: TORAY INDUSTRIES

    Inventor： BAMBA YASUO ,  IWAMOTO MASAO

    IPC: C08G69/00 ,  C08F2/00 ,  C08F2/48 ,  C08F2/50 ,  C08G69/36 ,  C08K5/50 ,  G03F7/032 ,  G03F7/037 ,  G03F7/038

    Abstract: 1377535 Photopolymerizable compositions TORAY INDUSTRIES Inc 24 Aug 1972 [29 Feb 1972] 39469/72 Heading C3P [Also in Division G2] Photosensitive (photopolymerizable) compositions for use in making printing plates, photoresists, photo curable paints and imageforming materials comprise (a) at least 40% by weight of a linear polyamide, (b) at least 10% by weight of a photopolymerizable unsaturated compound having at least one moiety, where R 1 and R 11 are H or a C 1 -C 12 monovalent hydrocarbon group or R 1 , together with the N atom, forms a heterocyclic ring, and (c) as photosensitiser from 0À01 to 10% by weight of a phosphorus compound of the formula wherein R 1 is an optionally substituted phenyl group, and R 2 and R 3 are an alkyl, aryl or arylalkyl group, the compositions being insolubilized when exposed to actinic radiation. The polyamide (a) is suitably derived from a C 2 -C 12 dibasic acid and a C 1 -C 16 diamine, or from an #-amino acid or lactam having up to 12 carbon atoms; preferred products are those obtained by copolymerizing #-caprolactam with hexamethy - lene diammonium adipate and with one or more of hexamethylene diammonium sebacate or azelate, 4,4 1 -diaminodicyclohexyl methane adipate, trimethylhexamethylene diammonium adipate and isophorone diammonium adipate. The unsaturated compound (b) is obtained by reacting glycidyl acrylate or methacrylate with a compound containing one or more primary and/ or secondary amino groups, e.g. butylamine, propylamine, benzylamine, octylamine, xylylene diamine, hexamethylene diamine, trimethylhexamethylene diamine, methyl ethyl amine, diethylamine, diphenylamine, piperidine, diethylene triamine, heptaethylene octamine or 2- (2-aminoethyl)-piperidine. The compositions may also contain a photosensitizer (additional to the stated phosphorus compound), e.g. benzoin and derivatives, anthraquinone and derivatives, xanthone, or various uranium, sulphur or halogen compounds; a thermal polymerization inhibitor, e.g. hydroquinone and derivatives, phenol and derivatives, or phenothiazine; a halo-hydroxyalkyl acrylate or methacrylate (inclusion of which improves the properties of photopolymer printing plates formed from the compositions); and acrylamide.

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