Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C1/00—Photosensitive materials
  • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
  • G03C1/91—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
  • G03C1/915—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means using mechanical or physical means therefor, e.g. corona
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C1/00—Photosensitive materials
  • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
  • G03C1/91—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
  • Y10S430/151—Matting or other surface reflectivity altering material

Definitions

• This invention relates to a process for subbing a photographic polyester film in order to have strong adhesion of a photographic gelatinous composition to the polyester film.
• the invention pertains to a process for subbing a photographic polyester film in order to firmly adhere to the polyester film a photographic gelatinous composition, e.g., a gelatinsilver halide emulsion, a gelatinous composition containing an antihalation agent, or a gelatin backing composition, which comprises subjecting at least one side of the polyester film to electron bombardment, and
• a photographic gelatinous composition e.g., a gelatinsilver halide emulsion, a gelatinous composition containing an antihalation agent, or a gelatin backing composition
• An object of the present invention is to provide a process for subbing a polyester film in which no swelling or solubilizing agent for polyester is substantially used.
• Another object of the invention is to provide a process for subbing a photographic polyester film without injuring the polyester film in flatness, which process makes it possible to firmly adhere a photographic gelatinous composition to the polyester film and does not give any detrimental influence to the photographic properties of said photographic gelatinous composition.
• a process for subbing a polyester film which comprises subjecting at least one side of the polyester film to electron bombardment so that the contact angle thereof with water becomes less than 58, and then applying to the treated surface of the polyester film a subbing composition containing (a) a copolymer latex of a diolefin with other polymerizable ethylenically unsaturated monomer and (b) a compound having two or more of groups selected from ethyleneimino and methylsulfonyloxy groups. If any one of the conditions required in the said subbing proscribed later.
• the polyester film used in the present invention is composed of an aliphatic diol and an aromatic dicarboxylic acid, and a typical example thereof is a polyethylene terephthalate film.
• the copolymer latex used in the present invention is composed of a diolefin and other polymerizable ethylenically unsaturated monomer.
• the diolefin include butadiene, 2-chloroprene, isoprene, neoprene and 2,3-methylbutadiene
• examples of the said other polymerizable ethylenically unsaturated monomer include methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, butyl acrylate, butyl methacrylate, chloroethyl acrylate, chloroethyl methacrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, 2-ethylhexyl acrylate, glycidy
• N,N-dialkyl acrylamides the alkyl includes, for example, methyl, ethyl, propyl, butyl and amyl, and the two alkyls may be same or different
• copolymer lattice can be easily obtained as commercially available products.
• Typical examples of the obtainable copolymer lattice are Hycar 2570x5, Hycar 1551, Hycar 1561, Hycar 1571, Hycar 1562, Hycar 1577, Nipol 4850, Nipol LX-l l0, Hycar LX-204, Hycar LX-303, Hycar LX-407, Hycar LX- 411, Hycar LX-4l5, Hycar LX-4l6, Hycar 2507 and Hycar 2518 produced by Nippon Geon Co.; Croslene SA-20, Croslene NA-lO, Croslene NS-16, Croslene 2M-30, Croslene NA-ll, Croslene SA-22, Croslene SA-23, Croslene SA-24, Croslene 2M-33, Croslene 2M-33A, Croslene 2M-36, Croslene 2M-38 and Croslene SK-SO produced by Takeda Chemical Industries, Ltd.; Dow
• Binder LF-3 produced by Dainichi Seikako Co.
• NK Binder SM-200R produced by Nakamura Kagaku Co.
• Corporex No. 1001 and Corporex No. 1031 produced by Mitsubishi Gas Kagaku Co.
• Wool Cement 3C and Wool Cement No. CS produced by Kyoritsu Kagaku Sangyo Co.
• Bortex GV produced by Meisei Kagaku Co., and all of these are effectively usable.
• the copolymer latex used in the present invention is preferably one'which contains 25 to 75 percent by weight of a diolefin and about to 30 percent by weight of a polymerizable ethylenically unsaturated monomer containing at least one reactive active or readily reactive) functional group having at the terminals at least one of hydroxyl, formyl, carboxyl, amido, alkoxy, isocyanato and ethyleneimino groups.
• Typical examples of the compound having two or more groups selected from ethyleneimino and methylsulfonyl groups are as follows:
• n is an integer of 1 to NCONH- CH1 CH, NHC ON (3).-- CH; CH,
• n is an integer ol 1 to 10
• n is an integer of 2 to 6
• n is an integer of 2 to 200
• the above-mentioned compound which is the aforesaid component (b), is used in an amount within the range from 0.01 to 100 percent, preferably from about 0.1 to 30 percent, by weight based on the weight of the aforesaid copolymer latex.
• the compound as the component (b) is dissolved in water or an organic solvent or in a mixture of the two, and then added to the aforesaid copolymer latex to prepare a subbing composition.
• the subbing composition is in the form of an aqueous dispersion, in general, but may alternatively be used, depending on the kind of drying means employed, in the form of a dispersion in a mixed solvent comprising water and methanol, ethanol, acetone or the like organic solvent lower in boiling point than water.
• the organic solvent is used in 0.1 to 10 times the amount of waters
• the subbing composition is applied by such means as coating and drying onto the surface of polyester film whose contact angle with water has brought to less than 58 according to electron bombardment.
• the electron bombardment is carried out by use of such corona discharge apparatus or the like that electrons are discharged at a high speed between at least a pair of electrodes in the presence of a gas or under pressure.
• the electron bombardment should be conducted to such an extent that the contact angle of polyester film with water becomes less than 58. If the contact angle is more than the said value, no satisfac-' tory subbing effect can be attained, as is clear from the working examples described later.
• a polyester film is subjected to electron bombardment so that the contact angle thereof with water becomes less than 58", and then a subbing composition containing the aforesaid component (a) (copolymer latex) and the aforesaid component (b) (exemplified compound) is applied according to such means as, for example, coating and drying to the treated side of the polyester film, whereby the subbed polyester film surface becomes highly adherent to a photographic gelatinous composition and sufficiently maintains the excellent adhesion even under severe conditions.
• the subbing composition according to the present invention does not give any detrimental influence to the photographic properties of photographic gelatinous composition and, moreover, does not require the use of swelling or dissolving for polyester to make it possible to overcome various problems derived from the use of said agents.
• the subbing composition used in the present invention may contain various photographic additives in addition to the aforesaid components (a) and (b).
• the subbing composition may be incorporated with such a hardener used to enhance the water resistance of photographic gelatinous composition as, for example, formaldehyde, mucochloric acid, acrolein, glyoxal, divinyl sulfone, vinyl sulfone, dichlorotriazine, hexahydrol ,3,5-triacryloyl-s-triazine, dihydroxybenzene, methylenebis acrylamide, dicarboxylic acid dinitrophenyl ester, dicarboxylic acid dichloromethyl ester, carbodiimide derivative, Woodwards reagent or chromium chloride.
• a hardener used to enhance the water resistance of photographic gelatinous composition as, for example, formaldehyde, mucochloric acid, acrolein, glyoxal
• the subbing composition may be incorporated with a surface active agent, e.g., natural saponin or anionic or nonionic synthetic surface active agent, in order to disperse the copolymer latex, and with a matting agent, e.g., colloidal silica, titanium oxide, zinc oxide, aluminum oxide polymethyl methacrylate or polystyrene beads, or starch powder.
• a surface active agent e.g., natural saponin or anionic or nonionic synthetic surface active agent
• a matting agent e.g., colloidal silica, titanium oxide, zinc oxide, aluminum oxide polymethyl methacrylate or polystyrene beads, or starch powder.
• the subbing composition may be incorporated with dye or pigment for antihalation or for coloration of film base.
• a subbing composition comprising 6 g. of Polylac SL-204 (produced by Mitsui Toatsu Co.), 0.18 g. of hexamethylenebis ethyleneimino ureide (the exemplified compound (1), wherein n
• Dry film adhesion test invention The photographic emulsion layer surface of each sample was scratched with a razor so as to form squares. Subsequently, a cellophane adhesive tape was applied under finger pressure onto the said surface and then quickly stripped off therefrom, and the residual ratio of the photographic emulsion layer on the film base to the adhesion surface area of the tape was repre sented by percentage.
• Wet film adhesion test invention The photographic emulsion layer surface of each sample was scratched with a razor so as to form squares. Subsequently, a cellophane adhesive tape was applied under finger pressure onto the said surface and then quickly stripped off therefrom, and the residual ratio of the photographic emulsion layer on the film base to the adhesion surface area of the tape was repre sented by percentage.
• the photographic emul emulsion layer surface of each sample was scratched with the sharp tip of a gimlet so as to form squares and then rubbed, and the residual ratio of the photographic emulsion layer on the film base was represented by per centage.
• a biaxially stretched polyethylene terephthalate film was pre-treated with a methanol solution containing p-chlorophenol, dried at 80 C. for 2 minutes, and then equally divided into two.
• One film was coated with the above-mentioned subbing composition, and the other film was coated with the same composition as above, except that the trimethylenedimethane sulfonate was not contained.
• These films were individually coated onto the subbed surfaces with the same roentgen emulsion as above, and then dried to prepare samples.
• Example 3 Biaxially stretched polyethylene terephthalate films which had been subjected to corona discharge treatment under the same conditions as in the case of the sample (1) prepared in Example 1, were individually coated onto the surfaces with each of such subbing compositions as shown in Table 3, dried at C. for 1 minute, further coated with an antihalation backing gelatin layer containing an absorption dye, and then dried to prepare samples. These samples were subjected to the same sub layer adhesion tests as in Example l to obtain the results as set forth in Table 3.
• Example 4 A biaxially stretched polyethylene terephthalate film, which had-been subjected to corona discharge treat- .ment under the same conditions as in the case of the Table 3 Sample Subbing composition (made I ccv Dry film Wet film No. by addition of water) adhesion adhesion (I0) Hycur 2570X5 (7 g.)
• a process for subbing a photographic polyester 1.
• a process for subbing photographic polyester film bing composition containing (a) a copolymer latex of as claimed incl aim l, wherein said compound (b) is a diolefin with other polymerizable ethylenically unsatthat whi h at lea t ne methylsulfonyloxy group in adurated monomer and (b) a compound having two or dition to one or more groups selected from more groups selected from ethylenermino and methylthyl i in and methylsulfonyloxy groups. sulfonyloxy groups.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
• Laminated Bodies (AREA)
• Treatments Of Macromolecular Shaped Articles (AREA)

Applications Claiming Priority (1)

Publications (1)

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Family Applications (1)

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Cited By (7)

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Citations (3)

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• 1972
  • 1972-05-30 JP JP47052978A patent/JPS5232568B2/ja not_active Expired
• 1973
  • 1973-05-23 US US00363051A patent/US3833403A/en not_active Expired - Lifetime
  • 1973-05-23 GB GB2469673A patent/GB1401703A/en not_active Expired
  • 1973-05-28 BR BR3937/73A patent/BR7303937D0/pt unknown
  • 1973-05-29 DE DE2327302A patent/DE2327302C3/de not_active Expired
  • 1973-05-29 SU SU7301927357A patent/SU576074A3/ru active

Patent Citations (3)

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